JP2007223671A - Bag forming and packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag forming and packaging machine including a chute delivering an abnormally packaged item and a normally packaged item to a downstream side while easily discriminating between them, based on their appearances, and smoothly delivers the bag to the downstream side, even if the bag is produced in a continuous form. <P>SOLUTION: According to the structure of the bag forming and packaging machine, the chute 16 is formed of: a side surface member 21 which supports a flat surface of the bag X in a manner slightly tilting backward relative to the bag X supplied from above in a vertical position; and a bottom surface member 22 which extends from a lower end of the side surface member 21 in a manner slightly rising forward so as to form an almost L shape together with the side surface member 21, and supports a lower end of the bag X. Herein driving of the chute is controlled in the following manner. When the chute receives the bags X one by one, the side surface member 21 and the bottom surface member 22 are turned while maintaining the almost L shape, and the bags X are tilted forward to be delivered to a delivery conveyor 3. When the chute receives the bags X' in the continuously connected state, only the bottom surface member 22 is turned in a manner lowering its front end, and the bags X, X vertically connected to each other are delivered to the delivery conveyor 3 with a lower end of the bags positioned at the head. <P>COPYRIGHT: (C)2007,JPO&amp;INPIT

Description

  The present invention relates to a bag making and packaging machine for packaging an article while forming a sheet-like film into a bag shape, and belongs to the technical field of article packaging.

  Conventionally, a sheet-like film is wound around a tube and formed into a cylindrical shape, and while the cylindrical film is conveyed, the overlapping portion is sealed in the vertical direction, and then the bag is continuously sealed and cut in the horizontal direction. There is a bag making and packaging machine that wraps articles such as snack confectionery supplied from an upstream combination weighing device or the like into individual bags while forming them into a shape.

  In such a bag making and packaging machine, there is a case where it is required to deliver the manufactured bag in a predetermined direction, for example, with the vertical seal portion directed downward and to the downstream side. For example, there is a bag making and packaging machine disclosed in Patent Document 1. In the bag making and packaging machine described in Patent Document 1, an L-shaped chute having a side surface portion and a bottom surface portion is provided, and a vertical seal portion is provided on the side opposite to the side surface portion and is supplied in a vertical posture. After receiving the bag, the air is jetted from the side surface portion, so that the bag is moved forward with the lower end portion supported by the bottom surface portion as a fulcrum and the vertical seal portion is directed downward. It is configured so that it can be transferred to the side.

  Further, as shown in FIG. 16, the L-shaped chute A having the side surface portion A1 and the bottom surface portion A2 as described above is rotated around the fulcrum A3 as indicated by a two-dot chain line in the arrow y direction. Thus, the bag X is also transferred to the downstream carry-out conveyor B.

JP 2002-68123 A

  By the way, in a bag making and packaging machine, when an overweight article or an article in which metal foreign matter has been detected is supplied from an upstream combination weighing device, foreign matter biting at the connection point of a sheet-like film or lateral sealing is performed. When it is detected, the relevant bag is handled as an abnormal package.For example, when a lateral seal is performed, cutting into individual bags is stopped, and the abnormal package is continuously connected in the vertical direction. May be collected in a packaged state. In that case, the following problems may occur in the bag making and packaging machine provided with the chute configured as described above.

  That is, as shown in FIG. 17, when the L-shaped chute A having the side surface portion A1 and the bottom surface portion A2 rotates in the direction of the arrow y about the fulcrum A3, the continuous bag X ' At the upper end of the part A1, as shown by the arrow z, the upper bag X is caught between the upper and lower bags X, X, that is, at the side seal part, and the upper bag X is caught on the upper end of the side part A1, thereby May not be smoothly delivered from the chute A to the carry-out conveyor B, or may stagnate at the chute A location. As a result, there may be a problem that the operation of the bag making and packaging machine must be stopped. Although the description is omitted, the same phenomenon can occur in the chute described in Patent Document 1.

  On the other hand, if the bag of the abnormally packaged product is made conspicuous in addition to making it in a packaged state, it can be reliably recovered on the downstream side if it is transferred from the bag making and packaging machine to the downstream side. However, since the chute A is for both the abnormally packaged product bag and the normal packaged product bag to be moved forward and delivered to the downstream side, the abnormally packaged product bag and the normal packaged product bag on the downstream side. There is a problem that it is not easy to distinguish between and the appearance.

  Therefore, the present invention can pass the bag of abnormally packaged product and the bag of normal packaged product to the downstream side so that it can be easily distinguished in appearance, and when the bag is manufactured in a continuous state, It is an object of the present invention to provide a bag making and packaging machine provided with a chute that can be smoothly delivered to the downstream side.

  In order to solve the above problems, the present invention is configured as follows.

  That is, the invention described in claim 1 seals a sheet-like film vertically and horizontally and cuts and continuously forms it into a bag shape, wraps the supplied articles in individual bags, and obtains the obtained bags. A bag making and packaging machine configured to deliver to a downstream side via a delivery mechanism, wherein the delivery mechanism reverses the operation of delivering a bag downstream without reversing the received posture and the received posture. Thus, the operation of switching the bag to the downstream side can be switched, and control means for switching the operation is provided.

  The delivery mechanism includes, for example, a chute that slides down a bag and a conveyor that conveys the bag.

  Next, the invention according to claim 2 is the bag making and packaging machine according to claim 1, wherein the bag making and packaging machine is configured to produce a bag having a vertical seal portion only on one surface. It is characterized by.

  As shown in FIG. 18, the bag X in this case is manufactured by, for example, a vertical pillow type bag making and packaging machine. Horizontal seal portions X4 and X4 are formed on both sides, respectively.

  On the other hand, the invention according to claim 3 is the bag making and packaging machine according to claim 1, wherein the bag making and packaging machine is configured to produce bags having different front and back designs. It is characterized by.

  As shown in FIGS. 19 and 20, the bags Y and Z in this case are, for example, three-sided or four-side sealed, and in the three-side sealed bag Y, the design Y5 that stands out on the front surface Y1, not the back surface Y2, is either left or right. A vertical seal portion Y3 is formed on each side, and horizontal seal portions Y4 and Y4 are formed on both upper and lower sides. Further, in the bag Z that is sealed in all directions, a pattern Z5 that stands out on the front surface Z1, not the back surface Z2, is formed with vertical seal portions Z3, Z3 on both left and right sides, and horizontal seal portions Z4, Z4 on both upper and lower sides.

  The invention described in claim 4 is the bag making and packaging machine according to any one of claims 1 to 3, further comprising a determining means for determining whether the bag is a normal package product or an abnormal package product. The control means switches the operation of the delivery mechanism based on the determination result by the determination means.

  Further, the invention according to claim 5 is the bag making and packaging machine according to any one of claims 1 to 3, wherein the bag making and packaging machine is manufactured in a bundled state in which bags are not cut into pieces one by one. When the bag is manufactured in a bundled state, the control means operates the delivery mechanism to deliver the bag downstream without inverting the received posture. It is characterized by switching.

  According to a sixth aspect of the present invention, in the bag making and packaging machine according to any one of the first to fifth aspects of the present invention, the delivery mechanism is arranged so that the bag is supplied in a vertical posture from the top during standby. A side member that tilts slightly rearward and supports the flat portion of the bag, and extends slightly forward from the lower end portion of the side member so as to be substantially L-shaped to support the lower end portion of the bag. And a driving source that rotates the side surface member and the bottom surface member about a fulcrum, respectively, and the control means controls the driving source to While maintaining the L-shape, the side member and the bottom member are rotated, the received bag is moved forward and delivered to the downstream side, and only the bottom member is rotated forward and downward. , With the lower end of the received bag at the head, And wherein the changing Ri.

  According to the first aspect of the present invention, the delivery mechanism can switch between the operation of delivering the bag downstream without reversing the received posture and the operation of delivering the bag downstream by reversing the received posture. By changing the position of the bag by switching the operation of the delivery mechanism by the control means, for example, the bag of the abnormally packaged product and the bag of the normal packaged product can be easily distinguished from each other on the downstream side. Can be delivered to.

  Next, according to the invention described in claim 2, since the bag making and packaging machine manufactures a bag having a vertical seal portion only on one side, if the presence or absence of the vertical seal portion is used as a mark, the posture It is possible to easily distinguish a bag that is inverted from a bag that is not inverted.

  On the other hand, according to the invention described in claim 3, the bag making and packaging machine manufactures bags having different designs on the front and back surfaces. And a bag that is not reversed can be easily distinguished.

  According to the fourth aspect of the present invention, since the discrimination means for discriminating whether the bag is a normal package product or an abnormal package product is provided, the operation of the delivery mechanism is switched by the control means based on the discrimination result. Thus, the posture can be switched reliably between when the normal packaged bag is received and when the abnormal packaged bag is received.

  Further, according to the invention described in claim 5, since the bag making and packaging machine is configured so that the bags can be manufactured in a bundled state in which the bags are not cut one by one, in the downstream, It is possible to easily distinguish the bag from the non-continuous bag in appearance. In addition, when receiving the continuous-packed bag, the delivery mechanism operates so as not to reverse the received posture, so the continuous-packed bag is delivered from the delivery mechanism to the downstream side without being brought forward. Therefore, when the continuous bag is folded back as in the prior art, for example, when the delivery mechanism is a chute, the upper end of the chute is not caught or stagnated, and the bag is smoothly received downstream. Can pass.

  And according to invention of Claim 6, a delivery mechanism is comprised with a side member and a bottom face member, and controls each drive source with a control means, By this side member, maintaining substantially L shape Rotating the bottom member and moving the received bag forward and delivering it to the downstream side, and turning only the bottom member to be forwardly lowered, with the lower end of the received bag as the head Since the operation to transfer to the downstream side is switched, it is possible to transfer the bag to the downstream side without further forwarding the bag more reliably and smoothly.

  Embodiments of the present invention will be described.

  As shown in FIG. 1, the bag making and packaging machine 1 according to the present embodiment continuously wraps articles such as snacks in a bag shape, and is installed below the combination weighing device 2 on the upstream side. . And on the downstream side of the bag making and packaging machine 1, an unloading conveyor 3 for unloading the manufactured bag X in the direction of arrow a is installed.

  The bag making and packaging machine 1 is of a vertical type, and the upper part is formed into a funnel shape and the lower part is formed into a cylindrical shape, and an article weighed to a target weight by an upper combination weighing device 2 is put into the main body frame 1a. A tube 11, a sailor member 12 which is attached to a relatively upper portion of the tube 11 and has a cylindrical shape by overlapping the left and right edges of the sheet-like film F fed by a feeding mechanism (not shown), A pair of pull-down belt mechanisms (only one shown) 13 and 13 which are disposed on both the left and right sides when viewed from the front and convey the film F downward while pressing the left and right sides of the tube 11, and provided on the front of the tube 11 A vertical sealing mechanism 14 that seals the overlapping portion in the vertical direction and forms the tube, and a cylindrical film F in which the article is stored are sealed in the horizontal direction and are not illustrated. Was a horizontal sealing mechanism 15 that cuts at the center of the transverse seal portion is assembled by the cutter, so that it is possible to manufacture the bags X the article is filled continuously.

  The lateral seal mechanism 15 is provided so as to be able to contact and separate, and has a pair of front and rear seal jaws 15a and 15a that seals the tubular film F by sandwiching and heating while pressing the tubular film F. And the chute | shoot 16 which is the characterizing part of this invention is installed directly under the horizontal seal | sticker mechanism 15. FIG.

  As shown in FIGS. 2 and 3, the chute 16 slightly tilts backward with respect to the bag X supplied in a vertical posture from above to support the flat portion of the bag X when waiting for the manufactured bag X. And a bottom member 22 that extends slightly forward from the lower end of the side member 21 so as to be substantially L-shaped and supports the lower end of the bag X.

  The side member 21 includes an introduction portion 21a that faces in a substantially vertical direction during standby, a planar support portion 21b that extends obliquely downward from the introduction portion 21a, and a pair of sides that stand up from the left and right sides of the planar support portion 21b. Side support portions 21c and 21c.

  An L-shaped support base 23 is erected on the main body frame 1a, and an air cylinder 25 is installed at one end of the upper part of the support base 23 via a bracket 24 so as to be swingable in the vertical direction. Has been. An attachment member 21d fixed near the upper end of the back surface of the planar support portion 21b of the side member 21 is connected to the tip of the output rod that advances and retreats as indicated by the arrow b of the air cylinder 25. Further, a U-shaped mounting plate 26 having a left and right end extending forward is fixed to the front portion of the support base 23, and the lower end of the back surface of the flat support portion 21b of the side member 21 is attached to the ends of both ends. A pair of attachment members 21 e and 21 e fixed to both sides of the unit are connected via a shaft 27. As a result, when the output rod of the air cylinder 25 advances and retreats as indicated by the arrow b, the side member 21 rotates with the lower mounting members 21e and 21e, that is, the shaft 27 as the fulcrum, and the upper end as indicated by the arrow c. To do.

  The bottom surface member 22 is formed in a flat plate shape, and includes a front lower end support portion 22a that extends slightly forward when waiting, and a rear slightly narrow connection portion 22b.

  An air cylinder 29 is installed so as to be swingable in the front-rear direction via an attachment member 28 fixed at the upper center of the attachment plate 26. An attachment member 22c fixed to the center of the connecting portion 22b of the bottom surface member 22 is connected to the tip of the output rod that advances and retreats as indicated by the arrow d of the air cylinder 29. In addition, a pair of attachment portions 22 d and 22 d erected from both the left and right sides of the connection portion 22 b of the bottom surface member 22 are connected to the front ends of both ends of the attachment plate 26 via the shaft 27. As a result, when the output rod of the air cylinder 29 advances and retreats as indicated by the arrow d, the bottom member 22 rotates with the mounting portions 22d and 22d closer to the center, that is, the shaft 27 as the fulcrum, and the front end as indicated by the arrow e. To do.

  Next, the control system of the bag making and packaging machine 1 will be described. As shown in FIG. 4, the control unit 30 for controlling the bag making and packaging machine 1 includes a pull-down belt mechanism 13, a vertical sealing mechanism 14, and a horizontal sealing mechanism. 15 outputs a control signal.

  Further, the control unit 30 receives a measurement error signal from the combination weighing device 2, that is, an excessive light weight generation signal, a metal detector 31 provided in the article conveyance path between the combination weighing device 2 and the bag making and packaging machine 1. Metal foreign object detection signal, connection detection signal provided from the film connection detection sensor 32 for detecting the connection location of the film F provided in the conveyance path of the sheet-like film F, and provided in the lateral seal mechanism 15 to sandwich the film F The side detection member 33 receives a biting detection signal from a biting detection sensor 33 that detects the biting of foreign matter based on the distance between the seal jaws 15a, 15a when they are in contact with each other. And a control signal is output to the air cylinders 25 and 29 for rotating the bottom face member 22.

  Next, the operation of the bag making and packaging machine 1 will be described.

  As shown in FIG. 1, in the bag making and packaging machine 1, the sheet-like film F is wound around the tube 11 via the sailor member 12 to be formed into a cylindrical shape, and is conveyed downward by the pull-down belt mechanisms 13 and 13. When the article weighed to the target weight is supplied from the combination weighing device 2 after being vertically sealed by the vertical seal mechanism 14, the article is sealed and cut in the horizontal direction by the horizontal seal mechanism 15. The filled bags X are continuously manufactured one by one. Then, the manufactured bag X is delivered to the carry-out conveyor 3 via the lower chute 16.

  The operation of the chute 16 in that case will be described in detail. First, as shown in FIG. 5, the chute 16 is provided immediately below the lateral seal mechanism 15 and directly above the carry-out conveyor 3 to supply the bag X in a standby posture. Waiting. That is, the side member 21 is inclined slightly rearward with respect to the bag X supplied in a vertical posture with the vertical seal portion facing forward, and the bottom member 22 is substantially L-shaped from the lower end portion of the side member 21. It is said that it rises slightly to become.

  Next, when the normal packaging bag X is manufactured, as shown by a two-dot chain line, the plane portion of the bag X that is dropped is supplied by the plane support portion 21b of the side member 21, and the lower end portion of the bag X is The bottom member 22 is supported by the lower end support portion 22a.

  Then, as shown in FIG. 6, the air cylinder 25 that rotates the side member 21 is driven, and the side member 21 that is connected to the output rod that advances as shown by the arrow b has the lower shaft 27 as a fulcrum. Rotate as shown by arrow c. At the same time, the air cylinder 29 that rotates the bottom member 22 is driven, and the bottom member 22 connected to the retracting output rod as shown by the arrow d rotates similarly as shown by the arrow e with the shaft 27 as a fulcrum. To do. As a result, the bag X indicated by the solid line supported by the chute 16 is moved forward, detached from the chute 16 as indicated by the two-dot chain line, and transferred to the carry-out conveyor 3 with the vertical seal portion directed downward. . When the delivery is completed, the output rod of the air cylinder 25 is retracted and the output rod of the air cylinder 29 is advanced, so that the chute 16 returns to the standby position shown in FIG.

  On the other hand, as shown in FIG. 7, when an abnormally packaged product, that is, a bag X ′ in which two bags X, X are continuously connected is manufactured, it is supplied to the chute 16 in the above-described standby posture also in this case. First, the lower bag X is supported by the chute 16.

  As shown in FIG. 8, the air cylinder 25 that rotates the side member 21 is not driven, and only the air cylinder 29 that rotates the bottom member 22 is driven while the side member 21 maintains the current posture. The bottom member 22 connected to the retracting output rod as indicated by the arrow d rotates as indicated by the arrow e with the shaft 27 as a fulcrum. As a result, the lower bag X supported by the chute 16 is not tilted forward, is slid down with the vertical seal portion facing upward, and is transferred to the carry-out conveyor 3 with the lower end portion at the top. That is, since the lower bag X is not brought forward, the upper bag X is delivered to the carry-out conveyor 3 in the same manner as the lower bag X without folding back.

  The operation of the chute 16 described above will be supplementarily described with reference to the time chart shown in FIG. Here, as an example of occurrence of abnormal packaging, it is assumed that a biting abnormality has occurred in the lateral seal mechanism 15 and an abnormally packaged bag X resulting from this has been manufactured.

  That is, if the control unit 30 does not input a biting detection signal from the biting detection sensor 33 at time t1 which is the current horizontal seal timing, it means that a normal packaged bag X is obtained. Therefore, the control unit 30 outputs a cutting signal for cutting the bag X into one piece at time t2, and then outputs a turning signal for turning the side member 21 and the bottom member 22 at time t3. . In this case, as shown in FIG. 5 and FIG. 6, one bag X is forwarded from the chute 16 to the carry-out conveyor 3 and delivered.

  When the control unit 30 inputs the biting detection signal at time t4 which is the next horizontal seal timing, it means that the abnormally packaged bags X and X are obtained. The cutting signal and the rotation signal are not output in order to produce the continuous bag X ′.

  Next, when the control unit 40 does not input the biting detection signal at time t5 which is the next horizontal seal timing, the bag X, X of the abnormally packaged product is set as the bag X ′ in the continuous packaging state at time t6. After outputting the cutting signal for cutting, the rotation signal for rotating the side member 21 is not output at time t7, and only the rotation signal for rotating the bottom member 22 is output. In this case, as shown in FIG. 7 and FIG. 8, the bag X ′ in the continuous packaging state is not carried forward from the chute 16 to the carry-out conveyor 4, and is carried out with the lower bag X as the head. Delivered to the conveyor 3.

  By configuring as described above, the control unit is provided with air cylinders 25 and 29 for independently rotating the side member 21 and the bottom member 22 constituting the chute 16 and controlling the air cylinders 25 and 29, respectively. 30, when the chute 16 receives the bags X one by one, the rotation of the both members 21 and 22 is controlled so that the bag X is moved forward, so that the bag X is the surface opposite to the side member 21 side. Is transferred to the downstream carry-out conveyor 3, and when the chute 16 receives the continuous bag X ′, the lower end portion of the bags X and X that are continuous in the vertical direction is set to the top. Since the rotation of the two members 21 and 22 is controlled, the bag X 'in the continuous packaging state is sequentially transferred to the carry-out conveyor 3 from the lower end, and in any case, the bags X and X' Downstream It can be passed smoothly. That is, the bag X ′ in the continuous package state does not break as in the conventional case, and does not get caught or stagnated at the upper end of the chute, so that the bag X ′ can be delivered smoothly to the downstream side.

  And since the bag making packaging machine 1 is comprised so that the bag X can be manufactured in the continuous packaging state which is not cut | disconnected piece by piece, in the downstream, the continuous bag X 'and the non-continuous packaging state Can be easily distinguished from the outer bag X in appearance.

  Next, the bag making and packaging machine 1 is of the vertical pillow packaging type described with reference to FIG. 1, and as shown in FIG. The operation of the chute 16 when the bag X in which the seal portions X4 and X4 are respectively formed is manufactured and the bags X of the normal package and the abnormal package are manufactured one by one will be described. Note that the same reference numerals are given to the same components as described above unless particularly confusing.

  In that case, as shown in FIG. 4, the control unit 30 of the bag making and packaging machine 1 performs a measurement failure signal from the combination weighing device 2, that is, an overweight generation signal, a metal foreign object detection signal from the metal detector 31, and a film connection. A connection detection signal from the detection sensor 32 and a biting detection signal from the biting detection sensor 33 are input to determine whether the manufactured bag X is a normal package product or an abnormal package product based on these signals. Based on the result, a control signal is output to the air cylinders 25 and 29 for rotating the side member 21 and the bottom member 22. As described above, the control unit 30 as the determination unit may determine that the bag X is an abnormally packaged product by receiving a measurement failure signal from an upstream device such as the combination weighing device 2, or It may be determined that the bag X is an abnormally packaged product based on detection signals from various abnormality detection means provided in the bag packaging machine 1 itself.

  First, as shown in FIG. 10, the chute 16 is waiting for the supply of the bag X in a standby posture immediately above the carry-out conveyor 3. That is, the side member 21 is inclined slightly rearward with respect to the bag X supplied in a vertical posture, and the bottom member 22 is slightly raised from the lower end portion of the side member 21 so as to be substantially L-shaped. Has been. In this case, the bag X is dropped and supplied to the chute 16 with the front surface X1 facing rearward and the rear surface X2 formed with the vertical seal portion X3 facing frontward.

  Next, as indicated by a two-dot chain line, the surface X1 side of the bag X that has been dropped and supplied is supported by the flat surface support portion 21b of the side member 21, and the lower end portion of the bag X is supported by the lower end support portion 22a of the bottom surface member 22. The

  When the control unit 30 determines that the bag X is a normal package, the air cylinder 25 that rotates the side member 21 is driven as shown in FIG. The side member 21 connected to the advancing output rod rotates as indicated by an arrow c with the lower shaft 27 as a fulcrum. At the same time, the air cylinder 29 that rotates the bottom member 22 is driven, and the bottom member 22 connected to the retracting output rod as shown by the arrow d rotates similarly as shown by the arrow e with the shaft 27 as a fulcrum. To do. As a result, the normal package bag X indicated by the solid line supported by the chute 16 is moved forward and detached from the chute 16 as indicated by the two-dot chain line, and as shown in FIG. The formed back surface X2 is transferred to the carry-out conveyor 3 with the lower surface X2 facing downward and the front surface X1 facing upward. When the delivery is completed, the output rod of the air cylinder 25 is retracted and the output rod of the air cylinder 29 is advanced, so that the chute 16 returns to the standby position shown in FIG.

  On the other hand, when the control unit 30 determines that the bag X is an abnormally packaged product, the air cylinder 25 that rotates the side member 21 is not driven as shown in FIG. While maintaining the posture, only the air cylinder 29 for rotating the bottom member 22 is driven, and the bottom member 22 connected to the output rod retracted as indicated by the arrow d is indicated by the arrow e with the shaft 27 as a fulcrum. It rotates as follows. As a result, the bag X of the abnormally packaged product supported by the chute 16 slides down at the lower end portion without being moved forward as shown by the solid line and the two-dot chain line, and as shown in FIG. The material is transferred to the carry-out conveyor 3 with the back surface X2 on which the part X3 is formed facing upward and the front surface X1 facing downward.

  Next, the bag making and packaging machine is of a three-side seal packaging type or a four-side seal packaging type, and as shown in FIGS. 19 and 20, in the bag Y that is three-side sealed, the pattern Y5 that stands out on the surface Y1 is A vertical seal portion Y3 is formed on one of the left and right sides, and horizontal seal portions Y4 and Y4 are formed on both the upper and lower sides. In a bag Z sealed in four directions, a pattern Z5 that stands out on the surface Z1 is formed on both sides of the vertical seal portion Z3. , Z3 will be described with respect to the operation of the chute 16 when the lateral seal portions Z4, Z4 are formed on both the upper and lower sides, and the bags Y, Z of the normal package and the abnormal package are manufactured one by one.

  Although detailed description using the drawings is omitted, for example, the manufactured bags Y and Z have chute 16 with the front surfaces Y1 and Z1 on which the prominent symbols Y5 and Z5 are formed facing rearward and the rear surfaces Y2 and Z2 facing forward. 10 and 14, when it is determined as a normal package by the control unit 30, it is moved forward by the chute 16 so that the surfaces Y 1 and Z 1 are moved upward. On the other hand, if the back side Y2, Z2 is directed downward, and it is determined as an abnormal package, the bottom end is slid down to the top without being moved forward by the chute 16, and the back side Y2, Z2 is directed upward, and the surface Y1 , Z1 is directed downward, and the bags Y, Z are delivered to the carry-out conveyor 3.

  By configuring as described above, the chute 16 does not reverse the received posture and transfers the bags X, Y, and Z to the downstream side, and reverses the received posture to return the bags X, Y, and Z to the downstream side. Since the operation of the chute 16 is switched by the control unit 30 to change the posture of the bag X, Y, Z, for example, the bag X, Y of an abnormally packaged product. , Z and normal packaged bags X, Y, Z can be transferred to the downstream side so that they can be easily distinguished in appearance.

  Further, since the control unit 30 is provided as a discriminating means for discriminating whether the bag X, Y, Z is a normal package product or an abnormal package product, the chute 16 is controlled by the control unit 30 as the control means based on the discrimination result. By switching the operation, the posture can be reliably switched between when the normal packaging bag X, Y, Z is received and when the abnormal packaging bag X, Y, Z is received.

  In particular, when the bag making and packaging machine 1 manufactures the bag X having the vertical seal portion X3 only on one surface as shown in FIG. 18, the presence or absence of the vertical seal portion X3 is marked as an appearance. By doing so, it is possible to easily distinguish between the bag X whose posture is reversed and the bag X which is not reversed.

  On the other hand, as shown in FIGS. 19 and 20, when the bag making and packaging machine manufactures bags Y and Z whose front and back surfaces Y1, Y2, Z1 and Z2 are different from each other, If the difference in design is used as a mark, the bags Y and Z whose postures are reversed can be easily distinguished from the bags Y and Z which are not reversed.

  Although detailed description using the drawings is omitted, the bag making and packaging machine is a three-sided and four-sided sealed packaging type, and the abnormally packaged bags Y and Z are not cut one by one as shown in FIG. When manufacturing in such a continuous packaging state, as easily understood based on the description of FIG. 7 and FIG. 8, bags Y ′ and Z ′ in a continuous packaging state from the chute 16 to the carry-out conveyor 3 (whichever Is also not shown, and only the sign is attached in the sentence), and the direction of the front and back of the bags Y, Y ', Z, Z' can be reversed between normal packaging and abnormal packaging it can.

  Next, a configuration when a conveyor is used instead of the chute 16 will be described. Unless otherwise confusing, the same or similar components as those described above are denoted by the same reference numerals.

  As shown in FIG. 15, the conveyor 41 is configured such that a flat belt 41 a constituting a conveying surface is driven by a motor 41 b attached to the lower portion, and is assembled to the main body frame 1 a with a positional relationship substantially similar to the chute 16. It has been. That is, an L-shaped support base 23 is erected on the main body frame 1a, and a U-shaped mounting plate 26 is extended forward from the lower portion of the support base 23. An air cylinder 25 is swingably installed on the upper portion of the support base 23 via a bracket 24. The upper part of the conveyor 41 is connected to the output rod in which the air cylinder 25 advances and retreats, and the lower part is connected to the tip of the mounting plate 26.

  Further, when the manufactured bag X is on standby, the conveyor 41 is inclined slightly rearward with respect to the bag X supplied in a vertical posture from above, and the output rod of the air cylinder 25 moves forward and backward as indicated by an arrow f. Then, the conveyor 41 is rotated as indicated by an arrow g with a connection point with the lower mounting plate 26 as a fulcrum, and a backward inclined posture indicated by a solid line and a forward inclined posture indicated by a two-dot chain line are repeated.

  Therefore, if the bag X remains in the backward tilted state while being conveyed by the conveyor 41, the bag X is delivered to the downstream side without reversing the received posture. The bag X can be transferred to the downstream side by reversing the posture, that is, moving forward. In this case, as compared with the case where the chute 16 is used, since the delivery is via the traveling flat belt 41a, there is an advantage that the delivery of the bag X is speeded up.

  It should be noted that the present invention is not limited to the above-described embodiment that has been specifically described in detail, and may be any that conforms to the spirit of the present invention.

For example, the normal packaging bag X, Y, and Z and the abnormal packaging bag X, Y, and Z may be manufactured so that the front and back are in the opposite directions.

  As for how to distinguish the normal packaged bags X, Y, Z and the abnormal packaged bags X, X ', Y, Y', Z, Z 'carried out by the carry-out conveyor 3, In the case of the bags X, Y, Z one by one, the difference in appearance between the front surface X1, Y1, Z1 and the back surface X2, Y2, Z2, that is, the presence or absence of the vertical seal portion X3 and the conspicuous symbols Y5, Z5 Based on the presence / absence, and when the abnormally packaged bags are bags X ′, Y ′, Z ′ in a continuous packaging state, for example, visually or by imaging means based on the length in the transport direction, etc. Can be distinguished. In particular, when an imaging means or the like is used, the bag X, X ', Y, Y', Z of the abnormally packed product is then collected by an appropriate sorting means such as an air jet type, a pusher type, a swing arm type, a swing flap type. , Z ′ can be automatically removed from the transport path and collected.

  As described above, according to the present invention, an abnormally packaged product bag and a normal packaged product bag can be transferred to the downstream side so that they can be easily distinguished in appearance, and the bags are manufactured in a bundled state. When it is done, a bag making and packaging machine provided with a chute that can be smoothly delivered to the downstream side is provided. That is, the present invention relates to a bag making and packaging machine that wraps an article while forming a sheet-like film into a bag shape, and is widely suitable for the technical field of article packaging.

It is a side view of the bag making packaging machine concerning an embodiment of the invention. It is a side view of a chute. It is also a plan view. It is a block diagram which shows a control system. It is a principal part side view explaining operation | movement of the chute | shoot with respect to the bag supplied one by one, Comprising: A standby state is shown. Similarly, the side member and the bottom member are rotated. It is a principal part side view explaining operation | movement of the chute | shoot with respect to the bag supplied in the continuous packaging state, Comprising: A standby state is shown. Similarly, only the bottom member is turned. It is a time chart for supplementary explanation of operation of a chute. When a bag making packaging machine is a vertical pillow packaging type thing, it is a principal part side view explaining operation | movement of a chute | shoot, Comprising: A standby state is shown. Similarly, it is a principal part side view explaining operation | movement of the chute | shoot which received the bag of normal packaging goods. Similarly, it is a principal part top view which shows the state by which the bag of the normal packaged goods was delivered to the carry-out conveyor. Similarly, it is a principal part side view explaining operation | movement of the chute | shoot which received the bag of abnormally packaged goods. Similarly, it is a principal part top view which shows the state by which the bag of abnormally packaged goods was delivered to the carry-out conveyor. It is a side view at the time of using a conveyor instead of a chute. It is a side view which shows operation | movement of the conventional chute | shoot. It is a side view for demonstrating the problem in the conventional chute | shoot. It is a front view of the bag by which the vertical pillow packaging was carried out, (a) shows the surface and (b) shows the back. It is a front view of the bag which carried out the three-side seal packaging, Comprising: (a) shows the front surface, (b) shows the back surface. It is a front view of the bag by which four-side seal packaging was carried out, (a) shows the surface and (b) shows the back.

Explanation of symbols

1 Bag making and packaging machine 16 Chute (delivery mechanism)
21 Side member 22 Bottom member 25 Air cylinder (side member drive source)
29 Air cylinder (drive source for bottom member)
30 Control unit (control means, discrimination means)
41 Conveyor (delivery mechanism)
F film X, Y, Z bag X 'continuous package X3 vertical seal

Claims (6)

The sheet-like film is sealed vertically and horizontally, cut and continuously formed into a bag shape, and the supplied articles are packaged in individual bags, and the obtained bags are delivered downstream via a delivery mechanism. A bag making and packaging machine configured in
The delivery mechanism has a structure capable of switching between an operation of transferring the bag downstream without inverting the received posture and an operation of inverting the received posture and delivering the bag downstream.
A bag making and packaging machine comprising control means for switching the operation. In the bag making and packaging machine according to claim 1,
The bag making and packaging machine is configured to produce a bag having a vertical seal portion only on one surface. In the bag making and packaging machine according to claim 1,
The bag making and packaging machine is configured to produce bags having different front and back designs. In the bag making and packaging machine according to any one of claims 1 to 3,
A discrimination means is provided for discriminating whether the manufactured bag is a normal package or an abnormal package,
The bag making and packaging machine, wherein the control means switches the operation of the delivery mechanism based on a determination result by the determination means. In the bag making and packaging machine according to any one of claims 1 to 3,
The bag making and packaging machine is configured so that bags can be produced in a continuous packaging state that is not cut into pieces one by one,
The control means switches the operation of the delivery mechanism so as to deliver the bag to the downstream side without inverting the received posture when the bag is manufactured in a continuous packaging state. . In the bag making and packaging machine according to any one of claims 1 to 5,
The delivery mechanism includes a side member that supports the flat portion of the bag and is substantially L-shaped from the lower end portion of the side member, while being slightly inclined backward with respect to the bag supplied in a vertical posture from above. Extending slightly forward so that it has a bottom member that supports the lower end of the bag, and
A drive source for rotating the side member and the bottom member around a fulcrum is provided,
The control means controls the drive source to rotate the side surface member and the bottom surface member while maintaining a substantially L shape, and forwards the received bag and delivers it downstream. A bag making and packaging machine, wherein only the bottom surface member is rotated so as to be lowered forward, and the operation is switched to the operation of transferring the received bag to the downstream side with the lower end portion of the received bag as the head.

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