JP2015051870A - Web spacing adjustment mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a web spacing adjustment mechanism for adjusting a spacing of webs conveyed in two lines which are improved in respect to cost.SOLUTION: A web spacing adjustment mechanism includes: a first support shaft and a second support shaft arranged such that one side edge parts of both shafts are opposite to each other; a first web guide roller provided coaxially rotatably around the first support shaft; and a second web guide roller provided coaxially rotatably around the second support shaft. Therein, the first support shaft is supported by a first support shaft support part, the second support shaft is supported by a second support shaft support part and such a position attitude that the first support shaft is supported by the first support shaft support part can be adjusted such that a shaft line of the first support shaft forms an acute angle with respect to a straight line made by binding the edge part of the first support shaft and the edge part of the second support shaft.

Description

  The present invention relates to a web interval adjusting mechanism for adjusting an interval between webs conveyed in two rows.

  With reference to FIG. 10, a gravure printing machine including a conventional web conveyance device will be described. FIG. 10 is a schematic diagram showing an example of the configuration of a conventional gravure printing machine. As shown in FIG. 10, the gravure printing machine includes a feeding unit 502, an infeed unit 503, a printing unit 504, an outfeed unit 505, and a winding unit 506. A roll-shaped original fabric 500 is set on the feeding shaft of the feeding unit 502. As the feed shaft is driven, a web (printing object such as paper, plastic film, metal foil, etc.) 501 is fed to the in-feed unit 503 from the roll-shaped raw material. The web 501 to be fed is fed to the printing unit 504 via the infeed unit 503, and printing processing is performed in the printing unit 504. Thereafter, the sheet is discharged via the outfeed unit 505 and is wound by the winding unit 506.

  FIG. 11 is a schematic diagram for explaining the feeding mechanism unit of a conventional printing machine in more detail. 11 feeds and feeds a feed shaft 510 on which a roll-shaped original fabric 500 is set and a web 501 fed from the roll-shaped original fabric 500 by the feed shaft 510. A nip roller 511. The nip roller 511 includes a driving roller 512 that is rotationally driven, and a rubber roller 513 that is disposed to face the driving roller 512 and presses the web 501 with the driving roller 512. After the roll-shaped original fabric 500 is set on the feeding shaft 510, the web 501 is fed from the roll-shaped original fabric 500 by the rotation of the feeding shaft 510. The web 501 to be fed is conveyed while being held between the driving roller 512 and the rubber roller 513. Here, the tension of the web 501 to be fed is controlled by adjusting the rotation speed of the feed shaft 510 and the rotation speed of the drive roller 512.

  Consider a case in which both a roll-shaped first original fabric and a roll-shaped second original fabric are set on the same feeding shaft 510 in a conventional feeding mechanism portion of a printing press. In this case, the webs fed from the original fabrics by the rotation of the feeding shaft 510 are conveyed in two rows while being held in common by the drive roller 512 and the rubber roller 513. Here, if the travel position of the web transported in two rows shifts during transport, the web transport will not be successful, or a shift will occur in the winding unit 506, resulting in winding failure. There is a risk of doing.

  Therefore, an edge position controller is known as an apparatus that adjusts the traveling position of the conveyed web. However, since this apparatus needs to be provided for each web in each row, there is a problem in terms of cost.

  On the other hand, a wide roll-shaped raw material is set on the feed shaft, the web is divided using a slitter device or the like in the processing step, and the plurality of divided webs are simultaneously wound in parallel. Such a web conveyance device is known (Patent Document 1). However, there is no known web conveyance device that can set a plurality of roll-shaped original fabrics.

Japanese Patent No. 2888704

  As described above, the edge position control device is known as a device for adjusting the traveling position of the web to be conveyed. However, since the device needs to be provided for each web in each row, there is a problem in terms of cost. There is.

  The present invention has been devised to pay attention to the above problems and to effectively solve them. An object of the present invention is to provide a web interval adjusting mechanism for adjusting an interval between webs conveyed in two rows, which is improved in terms of cost.

  The present invention provides a first support shaft and a second support shaft that are arranged so that one end portions thereof face each other in the same plane, and the first support shaft is rotatable about the first support shaft. A first web guide roller provided coaxially therewith, and a second web guide roller provided coaxially around the second support shaft so as to be rotatable around the second support shaft. Is supported by a first support shaft support portion, the second support shaft is supported by a second support shaft support portion, and the first support shaft is supported by the first support shaft support portion. The position and orientation is relative to the straight line in which the axis of the first support shaft connects the one end of the first support shaft and the one end of the second support shaft in the plane. Web-to-web characterized by being adjustable to form an acute angle An adjustment mechanism.

  According to the present invention, for example, a web fed from a roll-shaped first original fabric is guided by a first web guide roller, and is fed from a roll-shaped second original fabric. Is guided by the second web guide roller, the position and orientation at which the first support shaft is supported by the first support shaft support portion is such that the axis of the first support shaft is the first support shaft. The roll is fed from the first roll of raw material by adjusting so as to form an acute angle with respect to a straight line connecting the one end of the second support shaft and the one end of the second support shaft. The angle formed by the axis of the first web guide roller with respect to the web conveyance direction can be changed. Each web guide roller adjusts the conveyance direction of the running web so that the running web approaches from a direction perpendicular to the axis of the web guide roller, and the web guide roller is running by the web guide roller. It has a function (characteristic) that the web is guided. By using the adjustment function (characteristics) of each web guide roller with respect to the web conveyance direction during traveling, the web is guided by the first web guide roller and the second web guide roller. The distance between the webs can be easily adjusted without providing an edge position adjusting mechanism for each web in each row.

  Specifically, for example, the range of the acute angle formed by the axis of the first support shaft with respect to the straight line is 3 ° or less. For example, when 3 ° is adopted as an acute angle formed by the axis of the first support shaft with respect to the straight line, the distance between the webs guided by the first web guide roller relative to the webs guided by the second web guide roller Can be adjusted by a value corresponding to approximately twice the product of the distance between the straight line and the axis of the roller immediately preceding each web guide roller and tan (3 °).

  Preferably, the first support shaft support portion is connected to a center support base that supports the end portion on the one side of the first support shaft from below and an end portion on the other side of the first support shaft. And a nut portion of the first ball screw feeder. According to such an aspect, since the first support shaft is supported by both ends, the strength of the entire apparatus is improved and the web conveyance performance is stabilized.

  Alternatively, the first support shaft support portion is connected to a center support base that supports the end portion on the one side of the first support shaft from below and an end portion on the other side of the first support shaft. A support portion of the one-cylinder feeding device. Also according to such an aspect, since the first support shaft is supported by both ends, the strength of the entire apparatus is improved and the web conveyance performance is stabilized.

  Preferably, the position and orientation at which the second support shaft is supported by the second support shaft support portion is such that the axis of the second support shaft forms an acute angle with respect to the straight line in the plane. Can be adjusted. According to such an aspect, for example, when the web fed from one roll-shaped raw fabric is guided to both the first web guide roller and the second web guide roller, The position and orientation in which the first support shaft is supported by the first support shaft support portion and the position and orientation in which the second support shaft is supported by the second support shaft support portion are the axis line of the first support shaft and the second support shaft. The angle formed by the axis of the first web guide roller with respect to the conveyance direction of the web fed from the roll-shaped raw material and the axis of the second web guide roller are adjusted so that the axes of the second web guide roller are parallel to each other. Are equal to each other. At this time, by using the adjustment function (characteristics) of each web guide roller with respect to the web conveyance direction as described above, guidance is provided by both the first web guide roller and the second web guide roller. The running position of the web can be easily adjusted while preventing the occurrence of wrinkles and elongation in the width direction of the web.

  In this case, specifically, for example, the acute angle range formed by the axis of the first support shaft with respect to the straight line is 3 ° or less, and the axis of the second support shaft is set with respect to the straight line. The range of the acute angle to be formed is 3 ° or less. For example, the conveyance direction of the web fed from the roll-shaped first original fabric while maintaining the angle formed by the axis of the second web guide roller with respect to the conveyance direction of the web fed from the roll-shaped second original fabric When the angle formed by the axis of the first web guide roller with respect to the shaft is changed, if the acute angle formed by the axis of the first support shaft with respect to the straight line is 3 °, the guide is guided by the second web guide roller. The distance of the web guided by the first web guide roller to the web to be made is about twice the product of the distance between the straight line and the axis of the roller immediately before each web guide roller and tan (3 °) Only the corresponding value can be adjusted.

  In this case, more preferably, the first support shaft support portion includes a central support base that supports the end portion on the one side of the first support shaft from the lower side, and an end portion on the other side of the first support shaft. A nut portion of a first ball screw feeder connected to the second support shaft support portion, wherein the second support shaft support portion supports the one end portion of the second support shaft from the lower side. And a nut portion of the second ball screw feeder connected to the other end of the second support shaft. According to such an aspect, since the first support shaft and the second support shaft are both supported by both ends, the strength of the entire apparatus is improved and the web conveyance performance is stabilized.

  Alternatively, the first support shaft support portion is connected to a center support base that supports the end portion on the one side of the first support shaft from below and an end portion on the other side of the first support shaft. A support portion of the one-cylinder feeding device, and the second support shaft support portion includes a central support base that supports the end portion on the one side of the second support shaft from the lower side, and the second support shaft. And a support portion of the second cylinder feeder connected to the other end of the support shaft. Also according to such an aspect, since both the first support shaft and the second support shaft are supported by both ends, the strength of the entire apparatus is improved and the web conveyance performance is stabilized.

  Further, the present invention provides a first web guide roller and a second web guide roller which are arranged so that one end of each other faces in the same plane, and the one end of the first web guide roller. One side first support shaft coaxially provided in the end of the one side of the first web guide roller so as to be rotatable via a first side first self-aligning bearing in the part, and the first web guide roller The other side first support shaft provided coaxially within the other side end of the first web guide roller so as to be rotatable through the other side first self-aligning bearing in the other side end, and the second One side second support shaft provided coaxially within the one side end of the second web guide roller so as to be rotatable via a one side second self-aligning bearing in the one side end of the web guide roller And in the other end of the second web guide roller A second support shaft provided on the other side of the second web guide roller so as to be rotatable via the other second self-aligning bearing, and provided on the other side of the second web guide roller. Is supported by the one side first support shaft and the other side first support shaft, and the second web guide roller is supported by the one side second support shaft and the other side second support shaft. The position and orientation of the first web guide roller supported by the one side first support shaft and the other side first support shaft are within the plane, and the axis of the first web guide roller is the first web The web is adjustable so as to form an acute angle with respect to a straight line connecting the end portion on the one side of the guide roller and the end portion on the one side of the second web guide roller. It is an interval adjustment mechanism

  According to the present invention, for example, a web fed from a roll-shaped first original fabric is guided by a first web guide roller, and is fed from a roll-shaped second original fabric. Is guided by the second web guide roller, the position and orientation of the first web guide roller supported by the first support shaft on the one side and the first support shaft on the other side is the first web guide. The roller axis is adjusted so as to form an acute angle with a straight line connecting the one end of the first web guide roller and the one end of the second web guide roller. Accordingly, the angle formed by the axis of the first web guide roller with respect to the conveyance direction of the web fed from the roll-shaped first original fabric can be changed. Each web guide roller adjusts the conveyance direction of the running web so that the running web approaches from a direction perpendicular to the axis of the web guide roller, and the web guide roller is running by the web guide roller. It has a function (characteristic) that the web is guided. By using the adjustment function (characteristics) of each web guide roller with respect to the web conveyance direction during traveling, the web is guided by the first web guide roller and the second web guide roller. The distance between the webs can be easily adjusted without providing an edge position adjusting mechanism for each web in each row.

  Specifically, for example, the range of the acute angle formed by the axis of the first web guide roller with respect to the straight line is 3 ° or less. For example, when 3 ° is adopted as an acute angle formed by the axis of the first support shaft with respect to the straight line, the distance between the webs guided by the first web guide roller relative to the webs guided by the second web guide roller Can be adjusted by a value corresponding to approximately twice the product of the distance between the straight line and the axis of the roller immediately preceding each web guide roller and tan (3 °).

  Preferably, the one side first support shaft is fixed to a central support base, and the other side first support shaft is fixed to a nut portion of the first ball screw feeder. According to such an aspect, since the first web guide roller is supported by both ends via the pair of first support shafts, the strength of the entire apparatus is improved and the web conveyance performance is stabilized.

  Alternatively, the one-side first support shaft may be fixed to a central support base, and the other-side first support shaft may be fixed to a support portion of the first cylinder feeding device. Even in such an aspect, the first web guide roller is supported by both ends via the pair of first support shafts, so that the strength of the entire apparatus is improved and the web conveyance performance is stabilized.

  Preferably, the position and orientation of the second web guide roller supported by the second support shaft on the one side and the second support shaft on the other side is within the plane, and the axis of the second web guide roller is the axis of the second web guide roller. Adjustment is possible to form an acute angle with respect to the straight line. According to such an aspect, for example, when the web fed from one roll-shaped raw fabric is guided to both the first web guide roller and the second web guide roller, Position and orientation where the first web guide roller is supported by the first support shaft on the one side and the first support shaft on the other side, and position where the second web guide roller is supported by the second support shaft on the one side and the second support shaft on the other side The posture is adjusted so that the axis of the first web guide roller and the axis of the second web guide roller are parallel to each other, so that the posture relative to the conveyance direction of the web fed from the roll-shaped original fabric The angle formed by the axis of the first web guide roller is equal to the angle formed by the axis of the second web guide roller. At this time, by using the adjustment function (characteristics) of each web guide roller with respect to the web conveyance direction as described above, guidance is provided by both the first web guide roller and the second web guide roller. The running position of the web can be easily adjusted while preventing the occurrence of wrinkles and elongation in the width direction of the web.

  In this case, specifically, for example, the range of the acute angle formed by the axis of the first web guide roller with respect to the straight line is 3 ° or less, and the axis of the second web guide roller is in the straight line. The range of the acute angle to be formed is 3 ° or less. For example, the conveyance direction of the web fed from the roll-shaped first original fabric while maintaining the angle formed by the axis of the second web guide roller with respect to the conveyance direction of the web fed from the roll-shaped second original fabric When the angle formed by the axis of the first web guide roller with respect to the shaft is changed, if the acute angle formed by the axis of the first support shaft with respect to the straight line is 3 °, the guide is guided by the second web guide roller. The distance of the web guided by the first web guide roller to the web to be made is about twice the product of the distance between the straight line and the axis of the roller immediately before each web guide roller and tan (3 °) Only the corresponding value can be adjusted.

  In this case, more preferably, the one-side first support shaft and the one-side second support shaft are coaxially fixed to a common central support base, and the other-side first support shaft is fed with a first ball screw feed. The other side second support shaft is fixed to the nut portion of the second ball screw feeder. According to this aspect, the first web guide roller is supported by both ends via the pair of first support shafts, and the second web guide roller is supported by both ends via the pair of second support shafts. Therefore, the strength of the entire apparatus is improved, and the web conveyance performance is stabilized.

  Alternatively, the one-side first support shaft and the one-side second support shaft are coaxially fixed to a common central support base, and the other-side first support shaft is attached to a support portion of the first cylinder feeder. It is being fixed and the said other side 2nd support shaft may be fixed to the support part of the 2nd cylinder feeder. Also according to such an aspect, the first web guide roller and the second web guide roller are both supported by both ends via the pair of first support shafts or the pair of second support shafts. The strength of the web is improved and the web conveyance performance is stabilized.

  In addition, the present invention comprises a feed shaft on which a roll-shaped first original fabric and a roll-shaped second original fabric are set, and a web interval adjusting mechanism having any one of the characteristics described above, and the roll shape The web fed from the first original fabric is guided by the first web guide roller, and the web fed from the roll-shaped second original fabric is guided by the second web guide. It is a web conveyance device characterized by being guided by a roller.

  According to the present invention, the angle formed by the axis of the first web guide roller with respect to the conveyance direction of the web fed from the roll-shaped first original fabric can be changed by the above-described action. Each web guide roller adjusts the conveyance direction of the running web so that the running web approaches from a direction perpendicular to the axis of the web guide roller, and the web guide roller is running by the web guide roller. It has a function (characteristic) that the web is guided. By using the adjustment function (characteristics) of each web guide roller with respect to the web conveyance direction during traveling, the web is guided by the first web guide roller and the second web guide roller. The distance between the webs can be easily adjusted without providing an edge position adjusting mechanism for each web in each row. For this reason, the web conveyance apparatus which can endure practical use and can adjust the web traveling position when the web is simultaneously fed from a plurality of roll-shaped raw materials can be realized.

  According to one aspect of the present invention, for example, a web fed from a roll-shaped first original fabric is guided by a first web guide roller, and is fed from a roll-shaped second original fabric. When the web to be driven is guided by the second web guide roller, the position and orientation at which the first support shaft is supported by the first support shaft support part is the axis of the first support shaft. By adjusting so as to form an acute angle with respect to a straight line connecting the one end of the one support shaft and the one end of the second support shaft, the roll-shaped first The angle formed by the axis of the first web guide roller with respect to the conveyance direction of the web fed from the original fabric can be changed. Each web guide roller adjusts the conveyance direction of the running web so that the running web approaches from a direction perpendicular to the axis of the web guide roller, and the web guide roller is running by the web guide roller. It has a function (characteristic) that the web is guided. By using the adjustment function (characteristics) of each web guide roller with respect to the web conveyance direction during traveling, the web is guided by the first web guide roller and the second web guide roller. The distance between the webs can be easily adjusted without providing an edge position adjusting mechanism for each web in each row.

  According to another aspect of the present invention, for example, a web fed from a roll-shaped first original fabric is guided by a first web guide roller, and is fed from a roll-shaped second original fabric. When the web to be fed is guided by the second web guide roller, the position and orientation at which the first web guide roller is supported by the one side first support shaft and the other side first support shaft is An axis of the first web guide roller forms an acute angle with respect to a straight line connecting the one end of the first web guide roller and the one end of the second web guide roller. By adjusting, the angle formed by the axis of the first web guide roller with respect to the conveyance direction of the web fed from the roll-shaped first original fabric can be changed. Each web guide roller adjusts the conveyance direction of the running web so that the running web approaches from a direction perpendicular to the axis of the web guide roller, and the web guide roller is running by the web guide roller. It has a function (characteristic) that the web is guided. By using the adjustment function (characteristics) of each web guide roller with respect to the web conveyance direction during traveling, the web is guided by the first web guide roller and the second web guide roller. The distance between the webs can be easily adjusted without providing an edge position adjusting mechanism for each web in each row.

It is a schematic plan view which shows the web space | interval adjustment mechanism by the 1st Embodiment of this invention. It is a figure for demonstrating operation | movement of the web space | interval adjustment mechanism of FIG. It is a schematic side view which shows a web conveyance apparatus provided with the web space | interval adjustment mechanism of FIG. It is a figure for demonstrating the process of adjusting the space | interval of the web conveyed by 2 rows in the web conveyance apparatus of FIG. It is a schematic side view for demonstrating the aspect in which a web is conveyed in 1 row in the web conveyance apparatus of FIG. It is a figure for demonstrating the process of adjusting the conveyance direction of the web conveyed in 1 row in the web conveyance apparatus of FIG. It is a figure for demonstrating the process of widening the web conveyed in 1 row in the web conveyance apparatus of FIG. It is a schematic plan view which shows the web space | interval adjustment mechanism by the 2nd Embodiment of this invention. It is a figure for demonstrating operation | movement of the web space | interval adjustment mechanism of FIG. It is the schematic which shows an example of a structure of the conventional gravure printing machine. It is a schematic diagram for demonstrating the feeding mechanism part of the conventional printing machine.

  Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic plan view showing a web gap adjusting mechanism according to a first embodiment of the present invention. FIG. 2 is a view for explaining the operation of the web gap adjusting mechanism of FIG. FIG. 3 is a schematic side view showing a web conveyance device including the web interval adjusting mechanism of FIG.

  As shown in FIG. 3, the web conveyance device 1 of the present embodiment includes a feed shaft 21 on which a roll-shaped first original fabric 10 a and a roll-shaped second original fabric 10 b are set, and each roll-shaped original material. A web interval adjusting mechanism 70 for adjusting the interval (running position) between the webs 11a and 11b fed from the opposite side 10a and 10b, and the web 11a fed from the feeding shaft 21 via the web interval adjusting mechanism 70. , 11b in common, and a nip roller 31 for conveying.

  In the present embodiment, the feeding shaft 21 has an air shaft structure so that a roll-shaped first original fabric 10a and a roll-shaped second original fabric 10b each having an arbitrary width can be set. The air shaft structure has a lug (raised element) on the outer peripheral surface, and when the air is injected inside, the lug protrudes outward to hold the inner peripheral surface of the roll-shaped raw fabric It is a structure to do. However, as an aspect of setting the roll-shaped first original fabric 10a and the roll-shaped second original fabric 10b on the feeding shaft 21, the roll-shaped first original fabric 10a and the roll-shaped second original fabric 10b are bolts. A mode of fastening to the feeding shaft 21 by, for example, may be employed. In the present embodiment, the feeding shaft 21 is horizontal and is rotationally driven by a motor (not shown).

  As shown in FIG. 1, the web gap adjusting mechanism 70 according to the present embodiment includes a first support shaft 71 a and a first support shaft 71 a arranged so that one end portions thereof face each other in the same plane (here, a horizontal plane). The second support shaft 71b, the first web guide roller 72a coaxially provided around the first support shaft 71a so as to be rotatable around the first support shaft 71a, and the first support shaft 71b rotatable around the second support shaft 71b. And a second web guide roller 72b provided coaxially around the two support shafts 71b.

  The first support shaft 71a is supported by a first support shaft support portion 78a, and the second support shaft 71b is supported by a second support shaft support portion 78b. As shown in FIG. 3, the position and orientation in which the first support shaft 71a is supported by the first support shaft support portion 78a is such that the axis of the first support shaft 71a is the horizontal axis of the first support shaft 71a. A straight line L (hereinafter referred to as a reference axis) connecting the end portion on the one side (that is, the second support shaft 71b side) and the end portion on the one side (that is, the first support shaft 71a side) of the second support shaft 71b. It can be adjusted so as to form an acute angle. Further, the position and orientation at which the second support shaft 71b is supported by the second support shaft support portion 78b is such that the axis line of the second support shaft 71b is between the first support shaft 71a and the second support shaft 71b in the horizontal plane. Adjustment is possible to form an acute angle with respect to the reference axis L.

  In the present embodiment, as shown in FIG. 1, the first support shaft support portion 78 a includes a center support base 74 that supports the end portion on the one side of the first support shaft 71 a from the lower side, and a first support shaft. And a nut portion 76a of a first ball screw feeder 75a connected to an end of the other side of 71a (that is, opposite to the second support shaft 71b). The second support shaft support portion 78b includes a central support 74 that supports the end portion on the one side of the second support shaft 71b from the lower side and the other side of the second support shaft 71b (that is, the first support shaft). And a nut portion 76b of the second ball screw feeder 75b connected to the end of the second ball screw feeder 75b.

  More specifically, as shown in FIG. 1, a groove is provided on the upper surface of the center support base 74 in parallel with the reference axis L of the first support shaft 71a and the second support shaft 71b. The one end portion of the first support shaft 71a has a circular shape in plan view, and is slidably fitted to the groove on the upper surface of the central support base 74. Similarly, the end portion on the one side of the second support shaft 71b has a circular shape in plan view, and is slidably fitted into the groove on the upper surface of the central support base 74.

  On the other hand, the axis of the screw portion 77a of the first ball screw feeder 75a is oriented perpendicular to the reference axis L of the first support shaft 71a and the second support shaft 71b, and the other side of the first support shaft 71a. The nut portion 76a to which the end portions of the screw portion 77a are connected is screwed to the screw portion 77a via a plurality of balls (not shown) for the screw portion 77a. Similarly, the axis of the screw portion 77b of the second ball screw feeder 75b is also oriented perpendicular to the reference axis L of the first support shaft 71a and the second support shaft 71b, and the other side of the second support shaft 71b. The nut portion 76b to which the end on the side is connected is screwed to the screw portion 77b via a plurality of balls (not shown) for the screw portion 77b.

  As shown in FIG. 2, when the screw portion 77a of the first ball screw feeder 75a is rotated around the axis, the nut portion 76a of the first ball screw feeder 75a is linearly moved along the axis of the screw portion 77a. Thereby, the end portion on the other end side of the first support shaft 71a connected to the nut portion 76a is also linearly moved along the axis of the screw portion 77a. At this time, the moving direction of the one end portion of the first support shaft 71a is regulated in a direction parallel to the groove by a groove provided in the center support base 74, and the other end of the first support shaft 71a is With the movement of the end portion on the side, the end portion on the one side of the first support shaft 71a is slid in parallel with the groove. As a result, the position and orientation at which the first support shaft 71a is supported by the first support shaft support portion 78a is the horizontal plane, and the axis of the first support shaft 71a is the reference of the first support shaft 71a and the second support shaft 71b. Adjustment is made so as to form an acute angle with respect to the axis L.

  In the present embodiment, the movement amount of the nut portion 76a of the first ball screw feeder 75a is very small, and the axis of the first support shaft 71a is relative to the reference axis L of the first support shaft 71a and the second support shaft 71b. Specifically, the range of the acute angle to be formed is, for example, 3 ° or less (that is, −3 ° to + 3 °). Since the amount of movement of the nut portion 76a of the first ball screw feeder 75a is small, the first support shaft 71a is adjusted when the position and orientation of the first support shaft 71a supported by the first support shaft support portion 78a is adjusted. The connection portion between the other end of the first ball screw feeder 75a and the nut portion 76b of the first ball screw feeder 75a is slightly bent or curved, but is maintained without being broken.

  Similarly, when the screw portion 77b of the second ball screw feeder 75b is rotated around the axis, the nut portion 76b of the second ball screw feeder 75b is linearly moved along the axis of the screw portion 77b. The other end of the second support shaft 71b connected to the nut portion 76b is also linearly moved along the axis of the screw portion 77b. At this time, the moving direction of the one end portion of the second support shaft 71b is regulated in a direction parallel to the groove by a groove provided in the center support base 74, and the other end of the second support shaft 71b is With the movement of the end portion on the side, the end portion on the one side of the second support shaft 71b is slid in parallel with the groove. As a result, the position and orientation at which the second support shaft 71b is supported by the second support shaft support portion 78b is the same as that of the first support shaft 71a and the second support shaft 71b. Adjustment is made so as to form an acute angle with respect to the reference axis L.

  In the present embodiment, the amount of movement of the nut portion 76b of the second ball screw feeder 75b is very small, and the axis of the second support shaft 71b is relative to the reference axis L of the first support shaft 71a and the second support shaft 71b. Specifically, the range of the acute angle to be formed is, for example, 3 ° or less (that is, −3 ° to + 3 °). When the position and orientation at which the second support shaft 71b is supported by the second support shaft support portion 78b is adjusted due to the small amount of movement of the nut portion 76b of the second ball screw feeder 75b, the second support shaft is adjusted. The connecting portion between the other end of 71b and the nut portion 76b of the second ball screw feeder 75b is slightly bent or curved, but is maintained without being broken.

  In the present embodiment, as shown in FIGS. 1 and 2, the first web guide roller 72a and the second web guide roller 72b each have a hollow space. A first support shaft 71a is coaxially inserted in the hollow space of the first web guide roller 72a, and the first web guide roller is inserted into an annular gap between the first support shaft 71a and the first web guide roller 72a. A radial bearing 77a is inserted. As a result, the first web guide roller 72a is stably supported by the first support shaft 71a. Similarly, the second support shaft 71b is coaxially inserted in the hollow space of the second web guide roller 72b, and the second gap is formed in the annular gap between the second support shaft 71b and the second web guide roller 72b. A web guide roller radial bearing 77b is fitted. Accordingly, the second web guide roller 72b is stably supported by the second support shaft 71b.

  As shown in FIG. 3, in the present embodiment, a fixed guide roller 79 is provided adjacent to the first web guide roller 71a and the second web guide roller 71b. The reference axis L of the first support shaft 71 a and the second support shaft 71 b and the axis of the fixed guide roller 79 are both parallel to the axis of the feed shaft 21.

  The web 11a fed from the roll-shaped first original fabric 10a reaches the nip roller 31 via a path including the fixed guide roller 79 and the first web guide roller 72a. On the other hand, the web 11b fed from the roll-shaped second original fabric 10b reaches the nip roller 31 via a path including the fixed guide roller 79 and the second web guide roller 72b.

  In the present embodiment, the nip roller 31 includes a driving roller 32 that is rotationally driven, a rubber roller 33 that is disposed so as to face the driving roller 32 and presses the webs 11a and 11b with the driving roller 32, and have. The driving roller 32 and the rubber roller 33 are supported so as to be rotatable about a horizontal axis perpendicular to the conveying direction of the webs 11a and 11b. Further, the drive roller 32 is driven to rotate by a motor (not shown).

  Next, the operation of the present embodiment having such a configuration will be described.

  As shown in FIG. 3, first, a roll-shaped first original fabric 10 a and a roll-shaped second original fabric 10 b are set on the feeding shaft 21. Specifically, air is injected into the inside of the air shaft structure of the feed shaft 21, and the lugs protrude outward, so that the inner peripheral surface of the roll-shaped first original fabric 10a and the roll-shaped second original fabric 10b By contacting each of the inner peripheral surfaces, the roll-shaped first original fabric 10 a and the roll-shaped second original fabric 10 b are stably held on the feeding shaft 21.

  Next, the rotation of the feeding shaft 21 is allowed (for example, the lock mechanism is removed). Accordingly, the webs 11a and 11b are guided from the roll-shaped first original fabric 10a and the roll-shaped second original fabric 10b to the web interval adjusting mechanism 70, respectively.

  Here, the web 11a fed from the first original fabric 10a is guided to reach the nip roller 31 through the fixed guide roller 79 and the first web guide roller 72a in this order, and is fed from the second original fabric 10b. The web 11b to be fed is guided so as to reach the nip roller 31 through the fixed guide roller 79 and the second web guide roller 72b in order (see FIG. 4A).

  As shown in FIG. 3, the webs 11 a and 11 b guided by the web interval adjusting mechanism 70 are held in common by the drive roller 32 and the rubber roller 33 of the nip roller 31, and further each component (for example, To the printing and coating department).

  After the web 11a fed from the roll-shaped first original fabric 10a and the web 11b fed from the roll-shaped second original fabric 10b are respectively guided to desired paths, the rotational drive of the feeding shaft 21 is performed. Is started. Thereby, continuous feeding of each web 11a and 11b comes to be performed automatically.

  Next, the process of adjusting the distance (running position) between the webs 11a and 11b conveyed in two rows will be described.

  First, as shown in FIG. 4A, the axis of the first support shaft 71a and the axis of the second support shaft 71b are both parallel to the reference axis L of the first support shaft 71a and the second support shaft 71b. In this case, the axis of the first web guide roller 72 a and the axis of the second web guide roller 72 b are both parallel to the axis of the fixed guide roller 79. Each of the web guide rollers 72a and 72b changes the conveying direction of the running webs 11a and 11b so that the running webs 11a and 11b approach from a direction perpendicular to the axis of the web guide rollers 72a and 72b. Since the web guide rollers 72a and 72b are adjusted to have the function (characteristics) of guiding the running webs 11a and 11b, the first web guide roller in the state of FIG. The horizontal distance between the web 11a guided by 72a and the web 11b guided by the second web guide roller 72b is maintained at a constant distance.

  Here, as shown in FIG. 4B, the first support shaft 71a is moved by the first support shaft support portion 78a so that the other end portion of the first support shaft 71a is disposed on the downstream side. When the supported position / orientation is adjusted, guidance is provided by the first web guide roller 72a by the aforementioned adjustment function (characteristic) of each of the web guide rollers 72a and 72b with respect to the conveying direction of the running webs 11a and 11b. The travel position of the web 11a is moved to the other side of the first support shaft 71a (that is, the side opposite to the second web guide roller 72b). Specifically, for example, when 3 ° is adopted as the absolute value of the acute angle formed by the axis of the first support shaft 71a with respect to the reference axis L of the first support shaft 71a and the second support shaft 71b, The travel position of the web 11a guided by one web guide roller 71a is the distance between the reference axis L of the first support shaft 71a and the second support shaft 71b and the axis of the fixed guide roller 79, and tan (3 °). Is moved to the opposite side of the second web guide roller 72b by a value substantially corresponding to the product of.

  Furthermore, as shown in FIG. 4 (c), the second support shaft 71b is supported by the second support shaft support portion 78b so that the other end portion of the second support shaft 71b is also arranged on the downstream side. When the position and orientation are adjusted, the second web guide roller 72b guides the web 11a and 11b by the adjustment function (characteristics) described above with respect to the conveying direction of the running webs 11a and 11b. The travel position of the web 11b is also moved to the other side of the second support shaft 71b (that is, the side opposite to the first web guide roller 72a).

  On the other hand, as shown in FIG. 4 (d), the first support shaft 71a is supported by the first support shaft support portion 78a so that the end portion on the other side of the first support shaft 71a is arranged on the more upstream side. When the position and orientation are adjusted, the web guide rollers 72a are guided by the first web guide rollers 72a by the adjusting functions (characteristics) of the web guide rollers 72a and 72b with respect to the conveying direction of the running webs 11a and 11b. The travel position of the web 11a is moved to the one side of the first support shaft 71a (that is, the second web guide roller 72b side). Specifically, for example, when 3 ° is adopted as the absolute value of the acute angle formed by the axis of the first support shaft 71a with respect to the reference axis L of the first support shaft 71a and the second support shaft 71b, The travel position of the web 11a guided by one web guide roller 71a is the distance between the reference axis L of the first support shaft 71a and the second support shaft 71b and the axis of the fixed guide roller 79, and tan (3 °). Only a value substantially corresponding to the product of the second web guide roller 72b can be moved. Furthermore, when the position and orientation at which the second support shaft 71b is supported by the second support shaft support portion 78b is adjusted so that the other end portion of the second support shaft 71b is also arranged on the upstream side, The travel position of the web 11b guided by the second web guide roller 72b is also the second by the adjustment function (characteristics) of the web guide rollers 72a and 72b with respect to the conveying direction of the webs 11a and 11b during travel. It is moved to the one side of the support shaft 71b (that is, the first web guide roller 72a side).

  Next, as shown in FIG. 5, a mode in which webs are conveyed in one row in the web conveyance device 1 of the present embodiment will be described.

  First, instead of the roll-shaped first original fabric 10 a and the roll-shaped second original fabric 10 b, a roll-shaped third original fabric 10 c is set on the feeding shaft 21. Specifically, air is injected into the inside of the air shaft structure of the feed shaft 21, and the lug protrudes outward and comes into contact with the inner peripheral surface of the roll-shaped third raw fabric 10c. The Mihara fabric 10c is stably held on the feeding shaft 21.

  Next, the rotation of the feeding shaft 21 is allowed (for example, the lock mechanism is removed). Along with this, the web 11 c is guided from the roll-shaped third original fabric 10 c to the web interval adjusting mechanism 70.

  Here, the web 11c fed from the roll-shaped third raw fabric 10c is guided by both the first web guide roller 72a and the second web guide roller 72b after being guided by the fixed guide roller 79 ( (See FIG. 6 (a)).

  As shown in FIG. 5, the web 11c guided by the web spacing adjusting mechanism 70 is further sandwiched between the driving roller 32 and the rubber roller 33 of the nip roller 31, and further each component (for example, a printing unit or a coating). Part).

  After the web 11c fed from the roll-shaped third original fabric 10c is guided to a desired path, the rotational drive of the feeding shaft 21 is started. Thereby, the continuous feeding of the web 11c is automatically performed.

  Next, the process of adjusting the traveling position of the web 11c conveyed in a row will be described.

  First, as shown in FIG. 6A, the axis of the first support shaft 71a and the axis of the second support shaft 71b are both parallel to the reference axis L of the first support shaft 71a and the second support shaft 71b. In this case, the axis of the first web guide roller 72 a and the axis of the second web guide roller 72 b are both parallel to the axis of the fixed guide roller 79. As described above, the web guide rollers 72a and 72b are transported in a direction in which the web 11c that is running approaches the web 11c that is running from a direction perpendicular to the axis of the web guide rollers 72a and 72b. The web guide roller 72a, 72b adjusts the web 11c that is running, and has the function (characteristics) to guide the web 11c. In the state of FIG. 6A, the first web guide roller 72a The travel position of the web 11c guided by both the second web guide roller 72b is maintained at a constant position while preventing the occurrence of wrinkles and elongation in the width direction of the web 11c.

  Here, as shown in FIG. 6B, the axis of the first support shaft 71a and the axis of the second support shaft 71b are parallel to each other, and the end of the other side of the first support shaft 71a. Is positioned further downstream, and the first support shaft 71a is supported by the first support shaft support portion 78a such that the other end of the second support shaft 71b is disposed further upstream. When the position and orientation at which the second support shaft 71b is supported by the second support shaft support portion 78b are adjusted, the web guide rollers 72a and 72b with respect to the transport direction of the web 11c that is running are adjusted. The travel position of the web 11c guided by both the first web guide roller 72a and the second web guide roller 72b by the above-described adjustment function (characteristic) is the other end side of the first support shaft 71a (that is, the first web guide roller 72b). One web plan Is moved to the roller 72a side). At this time, since the axis of the first support shaft 71a and the axis of the second support shaft 71b are parallel to each other, the transport direction of the running web 11c is the same angle by the web guide rollers 72a and 72b in the same direction. Thus, wrinkles and elongation in the width direction of the web 11c are prevented.

  On the other hand, as shown in FIG. 6 (c), the axis of the first support shaft 71a and the axis of the second support shaft 71b are parallel to each other, and the other end of the first support shaft 71a is The position / posture in which the first support shaft 71a is supported by the first support shaft support portion 78a is arranged more upstream, and the other end of the second support shaft 71b is arranged further downstream. When the position and orientation at which the second support shaft 71b is supported by the second support shaft support portion 78b are adjusted, the web guide rollers 72a and 72b with respect to the traveling direction of the running web 11c are adjusted. The travel position of the web 11c guided by both the first web guide roller 72a and the second web guide roller 72b by the adjusting function (characteristic) described above is the other end side of the second support shaft 71b (that is, the second web guide roller 72b). Web Guide Is moved to the over La 72b side). At this time, since the axis of the first support shaft 71a and the axis of the second support shaft 71b are parallel to each other, the transport direction of the running web 11c is the same angle by the web guide rollers 72a and 72b in the same direction. Thus, wrinkles and elongation in the web 11c are prevented.

  Next, the process of widening the web 11c conveyed in a row will be described.

  As described above, when the axis line of the first support shaft 71a and the axis line of the second support shaft 71b are parallel to each other (see FIG. 6A), each of the webs 11c in the traveling direction with respect to the transporting direction. Due to the adjustment function (characteristics) of the web guide rollers 72a and 72b, the conveying direction of the running web 11c is adjusted by the web guide rollers 72a and 72b by the same angle in the same direction, thereby the width of the web 11c. Generation of wrinkles and elongation in the direction is prevented (that is, the length in the width direction of the web 11c is kept constant).

  Here, as shown in FIG. 7, the first support shaft 71a is supported by the first support shaft support portion 78a so that the end portion on the other side of the first support shaft 71a is arranged on the downstream side. When the position and orientation are adjusted, the first web guide roller 72a of the running web 11c is controlled by the adjustment function (characteristics) of the web guide rollers 72a and 72b with respect to the conveying direction of the running web 11c. Is moved to the other side of the first support shaft 71a (that is, the side opposite to the second web guide roller 72b), and thereby the web 11 is stretched in the width direction. (In other words, the web 11 is widened).

  As described above, according to the present embodiment, as shown in FIG. 3, the web 11a fed from the roll-shaped first original fabric 10a is guided to the first web guide roller 72a. When the web 11b fed from the roll-shaped second raw fabric 10b is guided by the second web guide roller 72b, as shown in FIG. The position and orientation supported by the one support shaft support portion 78a is adjusted so that the axis of the first support shaft 71a forms an acute angle with respect to the reference axis L of the first support shaft 71a and the second support shaft 71b. Accordingly, the angle formed by the axis of the first web guide roller 72a with respect to the conveyance direction of the web 11a fed from the roll-shaped first original fabric 10a can be changed, and / or the second support shaft 71b is the first one. Dual support shaft support The position and orientation supported by 8b is adjusted so that the axis of the second support shaft 71b forms an acute angle with respect to the reference axis L of the first support shaft 71a and the second support shaft 71b. The angle formed by the axis of the second web guide roller 72b with respect to the conveyance direction of the web 11b fed from the second raw fabric 10b can be changed. Each of the web guide rollers 72a and 72b changes the conveying direction of the running webs 11a and 11b so that the running webs 11a and 11b approach from a direction perpendicular to the axis of the web guide rollers 72a and 72b. The web guide rollers 72a and 72b are adjusted so that the running webs 11a and 11b are guided (characteristics). By using the adjustment function (characteristics) of the web guide rollers 72a and 72b with respect to the conveying direction of the running webs 11a and 11b, the web 11a guided by the first web guide roller 72a and The distance between the web 11b guided by the second web guide roller 72b can be easily adjusted without providing an edge position adjusting mechanism for each of the webs 11a and 11b in each row.

  Further, according to the present embodiment, as shown in FIG. 5, the web 11c fed from the roll-shaped third original fabric 10c is supplied to both the first web guide roller 71a and the second web guide roller 71b. In the case of being guided, as shown in FIG. 6, the position and orientation in which the first support shaft 71a is supported by the first support shaft support portion 78a and the second support shaft 71b are the second support shaft support portion. The position and orientation supported by 78b is adjusted so that the axis of the first support shaft 71a and the axis of the second support shaft 71b are parallel to each other, whereby a roll-shaped third original fabric 10c is obtained. The angle formed by the axis line of the first web guide roller 72a and the angle formed by the axis line of the second web guide roller 72b with respect to the conveying direction of the web 11c fed from is equal. By using the adjustment function (characteristics) of each of the web guide rollers 72a and 72b with respect to the conveying direction of the web 11c that is running as described above, the first web guide roller 72a and the second web guide roller 72b The running position of the web 11c guided by both can be easily adjusted while preventing the occurrence of wrinkles and elongation in the width direction of the web 11c.

  In addition, according to the present embodiment, the first support shaft support portion 78a includes the center support base 74 that supports the end portion on the one side of the first support shaft 71a from the lower side and the other of the first support shaft 71a. A nut portion 76b of the first ball screw feeder 75a connected to the end portion on the side, and the second support shaft support portion 78b has the end portion on the one side of the second support shaft 71b on the lower side. And a nut portion 76b of the second ball screw feeder 75b connected to the other end of the second support shaft 71b, and the first support shaft 71a and the second support shaft 71b. Since both of the support shafts 71b are supported by both ends, the strength of the entire apparatus is improved and the web conveyance performance is stable.

  In the present embodiment, the other end of the first support shaft 71a is connected to the nut portion 76a of the first ball screw feeder 75a, and the other end of the second support shaft 71b is the second end. Although it was connected to the nut portion 76b of the ball screw feeder 75b, the present invention is not limited to this, and the other end of the first support shaft 71a is a first cylinder feeder (for example, an air cylinder) via a first guide rail. ) And the other end of the second support shaft 71a may be connected to a support portion of a second cylinder feeder (for example, an air cylinder) via a second guide rail. . Also in this case, since both the first support shaft 71a and the second support shaft 71b are both supported, the strength of the entire apparatus is improved, and the web conveyance performance is stable.

  In the present embodiment, the position and orientation in which the first support shaft 71a is supported by the first support shaft support portion 78a, and the position and orientation in which the second support shaft 71b is supported by the second support shaft support portion 78b. In any case, the axis of each support shaft can be adjusted so as to form an acute angle with respect to the reference axis L. However, the present invention is not limited to this, and the first support shaft 71a is provided with the first support shaft support portion 78a. Only one of the position and orientation supported by the second support shaft 71b and the position and orientation supported by the second support shaft support portion 78b, the axis of the support shaft is acute with respect to the reference axis L. It may be adjustable so as to form. In this case, since the other position and orientation adjustment mechanism can be omitted, there is an advantage that the cost is lower, but there is also a disadvantage that it is impossible to adjust the traveling position of the web 11c conveyed in a row. Should be taken into account and the number of adjustable support shafts should be determined.

  Next, a second embodiment of the present invention will be described with reference to FIGS. FIG. 8 is a schematic plan view showing a web gap adjusting mechanism according to the second embodiment of the present invention. FIG. 9 is a diagram for explaining the operation of the web gap adjusting mechanism of FIG. The web interval adjusting mechanism 10 ′ according to the present embodiment can also be provided in the web conveyance device 1 as shown in FIG. 3.

  As shown in FIG. 8, the web interval adjusting mechanism 10 ′ according to the second embodiment is arranged such that the ends on one side of each other are opposed to each other in the same plane (here, a horizontal plane). Guide roller 72a, second web guide roller 72b, and one of the first web guide rollers 72a rotatably in the one end of the first web guide roller via one side first self-aligning bearing 173a A first support shaft 171a coaxially provided in the end portion on the side, and a first self-aligning bearing 273a on the other side in the other end portion of the first web guide roller 72a so as to be rotatable. The other first support shaft 271a provided coaxially in the other end of the one web guide roller 72a, and the one second self-aligning bearing 173b in the one end of the second web guide roller 72b. A second support shaft 171b coaxially provided in the one end portion of the second web guide roller 72b and the other side end portion in the other end portion of the second web guide roller 72b. A second support shaft 271b provided on the other side of the second web guide roller 72b so as to be rotatable via a second self-aligning bearing 273b. The details of the self-aligning bearings 173a, 273a, 173b, and 273b are based on the contents defined in JIS B1523 and JIS B1535.

  The first web guide roller 72a is supported by one side first support shaft 171a and the other side first support shaft 271a, and the second web guide roller 72b is one side second support shaft 171b and the other side second support shaft. It is supported by the shaft 271b. As shown in FIG. 9, the position and orientation of the first web guide roller 72a supported by the first first support shaft 171a and the other first support shaft 271a are within the horizontal plane. Is formed with an acute angle with respect to a straight line L (hereinafter referred to as a reference axis) connecting the one end of the first web guide roller 72a and the one end of the second web guide roller 72b. To be adjustable. Further, the position and orientation at which the second web guide roller 72b is supported by the one-side second support shaft 171b and the other-side second support shaft 271b are in the horizontal plane, and the axis of the second web guide roller 72b is set to the reference axis L. It can be adjusted to form an acute angle.

  Other configurations are substantially the same as those of the first embodiment shown in FIGS. 8 and 9, the same parts as those of the first embodiment shown in FIGS. 1 and 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, as shown in FIG. 8, the one-side first support shaft 171a and the one-side second support shaft 171b are coaxially fixed to the common center support base 74, and the other-side first support shaft. 271a is fixed to the nut portion 76a of the first ball screw feeder 75a, and the other side second support shaft 271b is fixed to the nut portion 76b of the second ball screw feeder 75b. In the illustrated example, the one-side first support shaft 171a, the other-side first support shaft 271a, the one-side second support shaft 171b, and the other-side second support shaft 271b are all parallel to the reference axis L. Is directed.

  As shown in FIG. 9, when the screw portion 77a of the first ball screw feeder 75a is rotated around the axis, the nut portion 76a of the first ball screw feeder 75a is linearly moved along the axis of the screw portion 77a. Thereby, the other-side first support shaft 271a fixed to the nut portion 76a is also linearly moved along the axis of the screw portion 77a. At this time, the rotation of the first web guide roller 72a around the axis is maintained by the action of the first first self-aligning bearing 173a and the other first self-aligning bearing 273a, while the rotation of the first web guide roller 72a is maintained. An axis is inclined with respect to each axis of the one side first support shaft 171a and the other side first support shaft 271a. As a result, the position and orientation at which the first web guide roller 72a is supported by the first-side first support shaft 171a and the other-side first support shaft 271a are in the horizontal plane, and the axis of the first web-guide roller 72a is the reference axis L. Is adjusted to form an acute angle with respect to.

  In the present embodiment, the amount of movement of the nut portion 76a of the first ball screw feeder 75a is very small, and the range of the acute angle formed by the axis of the first web guide roller 71a with respect to the reference axis L is specifically Is, for example, 3 ° or less (ie, −3 ° to + 3 °).

  Similarly, when the screw portion 77b of the second ball screw feeder 75b is rotated around the axis, the nut portion 76b of the second ball screw feeder 75b is linearly moved along the axis of the screw portion 77b. The other-side second support shaft 271b fixed to the nut portion 76b is also linearly moved along the axis of the screw portion 77b. At this time, the rotation of the second web guide roller 72b around the axis is maintained by the action of the one side second self-aligning bearing 173b and the other side second self-aligning bearing 273b, while the second web guide roller 72b An axis is inclined with respect to each axis of the one side second support shaft 171b and the other side second support shaft 271b. As a result, the position and orientation at which the second web guide roller 72b is supported by the one-side second support shaft 171b and the other-side second support shaft 271b are in the horizontal plane, and the axis of the second web guide roller 72b is the reference axis L. Is adjusted to form an acute angle with respect to.

  In the present embodiment, the amount of movement of the nut portion 76b of the second ball screw feeder 75b is very small, and the range of the acute angle formed by the axis of the second web guide roller 71b with respect to the reference axis L is specifically Is, for example, 3 ° or less (ie, −3 ° to + 3 °).

  According to the second embodiment as described above, as shown in FIG. 4, the web 11a fed from the roll-shaped first original fabric 10a is guided to the first web guide roller 72a. When the web 11b fed from the roll-shaped second raw fabric 10b is guided by the second web guide roller 72b, the first web guide roller 72a is provided on the one side first support shaft. The position and orientation supported by the first support shaft 271a and the other side first support shaft 271a are adjusted so that the axis of the first web guide roller 72a forms an acute angle with respect to the reference axis L. The angle formed by the axis of the first web guide roller 72a with respect to the conveying direction of the web 11a fed from the original fabric 10a can be changed, and / or the second web guide roller 72b is second on one side. The position and orientation supported by the holding shaft 171b and the second support shaft 271b on the other side are adjusted so that the axis of the second web guide roller 72b forms an acute angle with respect to the reference axis L. The angle formed by the axis of the second web guide roller 72b with respect to the conveying direction of the web 11b fed from the second original fabric 10b can be changed. Each of the web guide rollers 72a and 72b changes the conveying direction of the running webs 11a and 11b so that the running webs 11a and 11b approach from a direction perpendicular to the axis of the web guide rollers 72a and 72b. The web guide rollers 72a and 72b are adjusted so that the running web is guided (function). By using the adjustment function (characteristics) of the web guide rollers 72a and 72b with respect to the conveying direction of the running webs 11a and 11b, the web 11a guided by the first web guide roller 72a and The distance between the web 11b guided by the second web guide roller 72b can be easily adjusted without providing an edge position adjusting mechanism for each of the webs 11a and 11b in each row.

  Further, according to the present embodiment, as shown in FIG. 5, the web 11c fed from the roll-shaped third original fabric 10c is supplied to both the first web guide roller 72a and the second web guide roller 72b. When the first web guide roller 72a is supported by the one side first support shaft 171a and the other side first support shaft 271a and the second web guide roller 72b is one side first The position and orientation supported by the second support shaft 171b and the second support shaft 271b are adjusted so that the axis of the first web guide roller 72a and the axis of the second web guide roller 72b are parallel to each other. Thus, the angle formed by the axis of the first web guide roller 72a with respect to the conveying direction of the web 11c fed from the roll-shaped third original fabric 10c and the second web guide And the angle between the axis of over la 72b become equal. At this time, the first web guide roller 72a and the second web guide roller are utilized by using the adjustment function (characteristics) of each of the web guide rollers 72a and 72b with respect to the conveying direction of the web 10c that is running as described above. The travel position of the web guided by both of the web 72b and the web 10c can be easily adjusted while preventing the occurrence of wrinkles and elongation in the width direction of the web 10c.

  Further, according to the present embodiment, the one-side first support shaft 171a and the one-side second support shaft 171b are coaxially fixed to the common center support base 74, and the other-side first support shaft 271a is The other side second support shaft 271b is fixed to the nut portion 76b of the second ball screw feeder 75b, and the first web guide roller 72a is a pair of the first ball screw feeder 75a. Since the second web guide roller 72b is supported by both ends via the pair of second support shafts 171b and 271b while being supported by both ends via the first support shafts 171a and 271a, the entire apparatus The strength of the web is improved and the web conveyance performance is stabilized.

  In the present embodiment, the other first support shaft 271a is fixed to the nut portion 76a of the first ball screw feeder 75a, and the other second support shaft 271b is the nut portion 76b of the second ball screw feeder 75b. However, the present invention is not limited to this, and the other end of the first support shaft 71a is fixed to a support portion of a first cylinder feeding device (for example, an air cylinder) via a first guide rail. The other end of the second support shaft 71a may be fixed to a support portion of a second cylinder feeder (for example, an air cylinder) via a second guide rail. Also in this case, the first web guide roller 72a is supported by both ends via a pair of first support shafts 171a and 271a, and the second web guide roller 72b is supported via a pair of second support shafts 171b and 271b. Since it is supported by both ends, the strength of the entire apparatus is improved and the web conveyance performance is stable.

  In the present embodiment, the first web guide roller 72a is supported by the pair of first support shafts 171a and 271a, and the second web guide roller 72b is supported by the pair of second support shafts 171b and 271b. The supported position and orientation can be adjusted so that the axis of each web guide roller forms an acute angle with respect to the reference axis L, but the present invention is not limited to this, and the first web guide roller 72a is not limited thereto. Are positioned and supported by the pair of first support shafts 171a and 271a, and only one of the position and orientation of the second web guide roller 72b is supported by the pair of second support shafts 171b and 271b. It may be adjustable so that the axis of the web guide roller forms an acute angle with respect to the reference axis L. In this case, since the other position and orientation adjustment mechanism can be omitted, there is an advantage that the cost is lower, but there is also a disadvantage that it is impossible to adjust the traveling position of the web 11c conveyed in a row. Should be taken into account and the number of adjustable web guide rollers should be determined.

DESCRIPTION OF SYMBOLS 1 Web conveyance apparatus 10a Roll-shaped 1st original fabric 10b Roll-shaped 2nd original fabric 10c Roll-shaped 3rd original fabric 11a Web 11b Web 11c Web 21 Feed shaft 31 Nip roller 32 Drive roller 33 Rubber roller 70 Web space | interval adjustment mechanism 70 'web interval adjusting mechanism 71a first support shaft 71b second support shaft 171a one side first support shaft 271a other side first support shaft 171b one side second support shaft 271b other side second support shaft 72a first web guide roller 72b Second web guide roller 73a First web guide roller radial bearing 73b Second web guide roller radial bearing 173a One side first self-aligning bearing 273a The other side first self-aligning bearing 173b One side second self-aligning Bearing 273b Second self-aligning bearing 74 on the other side Center support base 75a First ball screw feeder 7 b Second ball screw feeder 76a Nut portion 76b Nut portion 77a Screw portion 77b Screw portion 78a First support shaft support portion 78b Second support shaft support portion 79 Fixed guide roller 500 Roll-shaped original fabric 501 Web 502 Feed portion 503 In Feed section 504 Printing section 505 Outfeed section 506 Winding section 510 Feed shaft 511 Nip roller 512 Drive roller 513 Rubber roller

Claims (17)

A first support shaft and a second support shaft that are arranged so that the ends on one side of each other face in the same plane;
A first web guide roller provided coaxially about the first support shaft so as to be rotatable about the first support shaft;
A second web guide roller provided coaxially about the second support shaft so as to be rotatable about the second support shaft;
With
The first support shaft is supported by a first support shaft support portion,
The second support shaft is supported by a second support shaft support portion,
The position and orientation at which the first support shaft is supported by the first support shaft support section is such that the axis of the first support shaft is the end of the first support shaft and the second end in the plane. A web interval adjusting mechanism characterized by being adjustable so as to form an acute angle with respect to a straight line connecting the end portion on the one side of the support shaft. The position and orientation at which the second support shaft is supported by the second support shaft support portion can be adjusted so that the axis of the second support shaft forms an acute angle with respect to the straight line in the plane. The web gap adjusting mechanism according to claim 1, wherein 2. The web gap adjusting mechanism according to claim 1, wherein the range of the acute angle formed by the axis of the first support shaft with respect to the straight line is 3 ° or less. 3. The first support shaft support portion includes a central support base that supports the one end portion of the first support shaft from below, and a first ball screw connected to the other end portion of the first support shaft. The web gap adjusting mechanism according to claim 1, further comprising a nut portion of the feeding device. The first support shaft support portion includes a central support base that supports the one end portion of the first support shaft from below, and a first cylinder coupled to the other end portion of the first support shaft. The web spacing adjusting mechanism according to claim 1, further comprising a support portion of the feeding device. The range of the acute angle that the axis of the first support shaft forms with respect to the straight line is 3 ° or less,
The web gap adjusting mechanism according to claim 2, wherein the range of the acute angle formed by the axis of the second support shaft with respect to the straight line is 3 ° or less. The first support shaft support portion includes a central support base that supports the one end portion of the first support shaft from below, and a first ball screw connected to the other end portion of the first support shaft. A nut portion of the feeder, and
The second support shaft support section includes a central support base that supports the one end portion of the second support shaft from below, and a second ball screw connected to the other end portion of the second support shaft. The web gap adjusting mechanism according to claim 2, further comprising a nut portion of the feeding device. The first support shaft support portion includes a central support base that supports the one end portion of the first support shaft from below, and a first cylinder coupled to the other end portion of the first support shaft. A support portion of the feeder,
The second support shaft support portion includes a central support base that supports the one end portion of the second support shaft from the lower side, and a second cylinder connected to the other end portion of the second support shaft. The web spacing adjusting mechanism according to claim 2, further comprising a support portion of the feeding device. A first web guide roller and a second web guide roller disposed so that one end of each other faces in the same plane;
One side first provided coaxially within the one end of the first web guide roller so as to be rotatable through a first self-aligning bearing on the one side of the first web guide roller. One support shaft and the other end of the first web guide roller are coaxially provided in the other end of the first web guide roller so as to be rotatable via the other first self-aligning bearing. The other side first support shaft,
One side first provided coaxially within the one side end of the second web guide roller so as to be rotatable through one side second self-aligning bearing in the one side end of the second web guide roller. Two support shafts and the second web guide roller are provided coaxially in the other end of the second web guide roller so as to be rotatable through the other second self-aligning bearing in the other end of the second web guide roller. The other side second support shaft,
With
The first web guide roller is supported by the one side first support shaft and the other side first support shaft,
The second web guide roller is supported by the one side second support shaft and the other side second support shaft,
The position and orientation at which the first web guide roller is supported by the one side first support shaft and the other side first support shaft are within the plane, and the axis of the first web guide roller is the first web guide roller. The web interval adjustment is adjustable so as to form an acute angle with respect to a straight line connecting the one end portion of the second web guide roller and the one end portion of the second web guide roller. mechanism. The position and orientation at which the second web guide roller is supported by the one-side second support shaft and the other-side second support shaft are within the plane, and the axis of the second web guide roller is acute with respect to the straight line. The web gap adjusting mechanism according to claim 9, wherein the web gap adjusting mechanism is adjustable so as to form a web. The web gap adjusting mechanism according to claim 9, wherein the range of the acute angle formed by the axis of the first web guide roller with respect to the straight line is 3 ° or less. The one side first support shaft is fixed to a central support base,
The web space adjusting mechanism according to claim 9 or 11, wherein the other first support shaft is fixed to a nut portion of the first ball screw feeder. The one side first support shaft is fixed to a central support base,
The web distance adjusting mechanism according to claim 9 or 11, wherein the other first support shaft is fixed to a support portion of the first cylinder feeding device. The range of the acute angle formed by the axis of the first web guide roller with respect to the straight line is 3 ° or less,
The web interval adjusting mechanism according to claim 10, wherein the range of the acute angle formed by the axis of the second web guide roller with respect to the straight line is 3 ° or less. The one side first support shaft and the one side second support shaft are coaxially fixed to a common central support base,
The other side first support shaft is fixed to a nut portion of the first ball screw feeder,
The web gap adjusting mechanism according to claim 10 or 14, wherein the second support shaft on the other side is fixed to a nut portion of a second ball screw feeder. The one side first support shaft and the one side second support shaft are coaxially fixed to a common central support base,
The other side first support shaft is fixed to a support portion of the first cylinder feeder,
15. The web gap adjusting mechanism according to claim 10, wherein the second support shaft on the other side is fixed to a support portion of a second cylinder feeding device. A feed shaft on which a roll-shaped first original fabric and a roll-shaped second original fabric are set;
The web gap adjusting mechanism according to any one of claims 1 to 16,
With
The web fed from the roll-shaped first raw fabric is guided by the first web guide roller,
The web transporting apparatus is characterized in that the web fed from the roll-shaped second original fabric is guided by the second web guide roller.

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