JP2009013550A - Cleaner for draft rollers, draft device, and textile machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a constitution that easily removes deposit such as flies etc., attached to an endless belt and has an excellent cleaning effect in a cleaner for draft rollers. <P>SOLUTION: The cleaner 60 for the draft rollers includes a cleaning belt 74 having a cleaning surface to come into contact with the peripheral surfaces of the draft rollers and to clean the surfaces and an inclined pile brush to come into contact with the cleaning surface of the cleaning belt 74. The inclined pile brush is fixed on the outer peripheral surface of a rotatable brush roller 76. The brush roller 76 is connected to a second roller 72 for supporting the cleaning belt 74 by a rope 79. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention mainly relates to a configuration of a cleaning device that cleans a draft roller used in a draft device.

  2. Description of the Related Art Conventionally, in a spinning machine, a rough spinning machine, or the like, a configuration including a draft device for drawing a sliver into a fiber bundle is known. The draft device includes a plurality of draft rollers, and the draft rollers are driven to rotate at different speeds to draft the sliver.

  When drafting a sliver with this type of drafting device, fluff or the like often adheres to the peripheral surface of the drafting roller. For example, when the sliver raw material is cotton, cotton-based cotton is generated, and when the sliver raw material is chemical fiber, an oil or other cotton is generated.

  If a large amount of foreign matter such as fluff adheres to the peripheral surface of the draft roller, it may cause fine yarn unevenness or yarn breakage. Therefore, in order to avoid this, a configuration is known in which a cleaning device for cleaning the peripheral surface of the draft roller is provided.

For example, Patent Document 1 discloses a cleaning device that includes an endless belt that contacts a peripheral surface of a draft roller and cleans the surface thereof, and that intermittently rotationally feeds the endless belt. The cleaning device of Patent Document 1 includes a sawtooth-shaped scraping portion for scraping off deposits on the outer peripheral surface of an endless belt. The scraping portion is configured to scrape off deposits on the outer peripheral surface of the endless belt by contacting the outer peripheral surface of the endless belt.
JP 2006-83475 A

  The cleaning device of Patent Document 1 cannot remove the fluff and the like strongly attached to the outer peripheral surface of the endless belt unless the scraping portion is pressed against the outer peripheral surface of the endless belt with a strong force. On the other hand, if the scraped portion is pressed against the endless belt with an excessive force, the endless belt may be damaged and the life may be shortened.

  Therefore, it is difficult to adjust the force for pressing the scraped portion against the endless belt so that the endless belt is not damaged while exerting the cleaning effect, and there remains room for improvement in this respect.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to easily remove deposits such as fluff adhered to an endless belt in a draft roller cleaning device, thereby obtaining an excellent cleaning effect. To provide a configuration.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

  According to an aspect of the present invention, a draft roller cleaning device having the following configuration is provided. That is, the cleaning device includes an endless belt having a cleaning surface that comes into contact with the peripheral surface of the draft roller and cleans the surface thereof, and an inclined pile brush that can contact the cleaning surface of the endless belt.

  Thereby, even if it does not press an inclined pile brush with strong force, the deposit | attachment of the cleaning surface of an endless belt can be effectively entangled, and it can clean favorably. Therefore, the cleaning effect of the draft roller can be improved without damaging the endless belt.

  Preferably, the draft roller cleaning device includes a rotatable brush roller, and the inclined pile brush is fixed to an outer peripheral surface of the brush roller.

  Thereby, continuous cleaning by rotation of a brush roller is attained, and the cleaning effect can be further improved.

  The draft roller cleaning device preferably has the following configuration. That is, the cleaning device includes a belt support roller that supports the endless belt. The brush roller is connected to the belt support roller.

  Thereby, the structure for driving the brush roller is simplified, and the manufacturing cost can be reduced.

  In the draft roller cleaning device, when the endless belt is driven, the brush roller preferably rotates so that the outer peripheral surface rubs the cleaning surface of the endless belt in the opposite direction.

  As a result, the fluff wound around the inclined pile brush on the outer peripheral surface of the brush roller is lifted from the brush surface while being rounded into a belt shape by the rubbing action of the endless belt and the brush roller. Accordingly, since the fluff and the like can be easily removed from the outer peripheral surface of the brush roller, cleaning becomes easier.

  The draft roller cleaning device preferably has the following configuration. That is, the cleaning device includes a roller frame that rotatably supports the brush roller. The brush roller is detachably attached to the roller frame.

  Thus, for example, when the brush on the outer peripheral surface of the brush roller becomes sticky with long-term use, or when a large amount of fluff or the like is accumulated on the brush, the original good condition can be obtained by replacing it with another brush roller. Can be easily returned to a state that exhibits a clean effect.

  In the draft roller cleaning device, the diameter of the brush roller is preferably larger than the diameter of the draft roller.

  Thereby, the inclined pile brush of a wide area can be provided in the outer peripheral surface of a large diameter brush roller. Accordingly, the endless belt can be stably and satisfactorily cleaned even if some fluff or the like accumulates on the brush, so that the frequency of maintenance can be reduced.

  The draft roller cleaning device preferably has the following configuration. That is, the inclined pile brush is formed on the surface of a flexible brush sheet, and this brush sheet is fixed to the outer peripheral surface of the brush roller. The outline of the end portion in the longitudinal direction of the brush sheet includes a direction indicating portion that indicates a lying direction of the pile in the inclined pile brush.

  Thereby, at the time of manufacture of a brush roller, the mistake which attaches a brush sheet with respect to a brush roller in the reverse direction to a regular can be prevented easily. Further, it is possible to easily prevent a mistake that the brush roller is attached to the cleaning device in the direction opposite to the normal direction.

  The draft roller cleaning device preferably includes a suction pipe, and a suction port of the suction pipe faces the inclined pile brush.

  As a result, the fluff and the like entangled in the inclined pile brush can be sucked and removed by the suction pipe. Therefore, the maintenance work for removing the deposits accumulated on the inclined pile brush becomes unnecessary, and the burden on the operator can be remarkably reduced.

  The draft roller cleaning device preferably has the following configuration. That is, the cleaning device includes a second suction pipe, and the suction port of the second suction pipe faces the outer peripheral surface of the draft roller. A branch path is branched at an angle of not less than 50 ° and not more than 70 ° from a straight portion of a path connecting the second suction pipe and the negative pressure source, and the branch path is connected to the suction pipe.

  Thereby, the dust on the inclined pile brush can be satisfactorily sucked by the suction pipe and, at the same time, the pressure loss on the second suction pipe side can be suppressed.

  The draft roller cleaning device preferably has the following configuration. That is, the cleaning device includes a tension mechanism that applies tension to the endless belt. The endless belt is pressed against the inclined pile brush by this tension mechanism. This tension mechanism is configured to be able to release the tension of the endless belt.

  Thus, by releasing the tension applied to the endless belt by the tension mechanism, the pressure contact between the endless belt and the inclined pile brush can be released, and the inclined pile brush can be easily replaced in this state. Therefore, the burden of maintenance work can be reduced.

  According to another aspect of the present invention, a draft device including the cleaning device and a textile machine including the draft device are provided.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a spinning machine 1 as a textile machine having a large number of spinning units (yarn processing units) 2 arranged side by side.

  As shown in FIG. 1, each spinning unit 2 includes a draft device 7, a spinning device 9, a yarn feeding device 11, and a winding device 12 as main components. The draft device 7 is provided on the upper part of the casing 6 of the spinning machine 1, and the fiber bundle 8 sent from the draft device 7 is spun by the spinning device 9. The spun yarn 10 discharged from the spinning device 9 is fed downward by the yarn feeding device 11, and a clearer (yarn defect detector) 32 for detecting a yarn defect, cutting the yarn and removing the yarn defect portion is provided. Then, it is wound up by the winding device 12 to form the package 33.

  The spinning machine 1 includes a blower box 80 and a prime mover box 81. Although not shown in the figure, the spinning machine 1 includes a yarn joining cart and a doffing cart that can run independently of each other. Both the yarn joining cart and the doffing cart are provided so as to be able to run in the direction in which the spinning units 2 are arranged.

  FIG. 2 is an enlarged side view showing configurations of the draft device 7, the spinning device 9, and the yarn feeding device 11. As shown in FIG. 2, the draft device 7 includes a draft roller for drawing the sliver 13 into the fiber bundle 8. The draft roller is composed of a top roller and a bottom roller that are arranged to face each other.

  The top roller is composed of four rollers: a back roller 14, a third roller 15, a middle roller 16 on which an apron belt 18 is mounted, and a front roller 17. These top rollers 14 to 17 are attached to a cover-like cradle 20 provided in the draft device 7. On the other hand, the bottom roller includes four rollers: a back bottom roller 24, a third bottom roller 25, a middle bottom roller 26 on which an apron belt 28 is mounted, and a front bottom roller 27. The bottom rollers 24 to 27 are attached to the main body side of the draft device 7 and are disposed so as to face the top rollers 14 to 17.

  An unillustrated spring box is provided inside the cradle 20, and the top rollers 14 to 17 are urged to be pressed against the bottom rollers 24 to 27 by the spring box. As a result, the sliver 13 can be nipped between the top rollers 14 to 17 and the bottom rollers 24 to 27.

  As shown in FIG. 1, one cradle 20 is provided for each of the two spinning units 2, and the top rollers 14 to 17 and the bottom rollers 24 to 27 are attached to both sides of the cradle 20 one by one.

  With the above configuration, the sliver 13 sent to the draft device 7 is stretched by a draft roller that is rotationally driven at different speeds, and is sent to the spinning device 9 as a fiber bundle 8. The spinning device 9 performs air spinning on the fiber bundle 8 sent from the draft device 7. The air-spun fiber bundle 8 becomes a spun yarn 10 and is sent to the yarn feeding device 11.

  As shown in FIG. 2, the yarn feeding device 11 includes a delivery roller 30 supported by a casing of the spinning machine 1 body, and a nip roller 31 provided so as to be able to come into contact with and separate from the delivery roller 30. With this configuration, the spun yarn 10 discharged from the spinning device 9 is sandwiched between the delivery roller 30 and the nip roller 31, and the delivery roller 30 is rotationally driven, so that the spun yarn 10 can be sent to the winding device 12 side.

  The cradle 20 includes a rotation shaft portion 29, and is configured to be openable and closable with respect to the draft device 7 by rotating about the rotation shaft portion 29. The cradle 20 is attached with a cradle handle 23 for opening the cradle 20 during maintenance work.

  Above the draft device 7, a cleaning device 60 for cleaning the draft roller is provided. The cleaning device 60 includes a frame 61, and the frame 61 is fixed to the side surface of the cradle 20.

  FIG. 3 is a perspective view showing the draft device 7 and the cleaning device 60. As shown in FIGS. 2 and 3, a first roller 71 and a second roller (belt support roller) 72 are rotatably supported by the frame 61. An urging lever 62 is rotatably attached to the frame 61, and a tension roller 73 is rotatably supported at the tip of the urging lever 62.

  An endless cleaning belt (endless belt) 74 is wound around the first roller 71, the second roller 72, and the tension roller 73. As shown in FIG. 2, the outer peripheral surface (cleaning surface) of the cleaning belt 74 is the outer peripheral surface of the back roller 14, the third roller 15, and the middle roller 16 (the apron belt 18) among the top rollers 14 to 17. It is arranged to touch. An urging spring (not shown) is attached to the urging lever 62 and urges the urging lever 62 in a direction in which a tension is applied to the cleaning belt 74. The tension roller 73, the urging lever 62, and the urging spring constitute a tension mechanism for applying tension to the cleaning belt 74. The tension mechanism can release the tension of the cleaning belt 74 and loosen it by gripping and turning the urging lever 62 by hand in a direction against the urging spring.

  With the above configuration, the back roller 14, the third roller 15, and the apron belt 18 rotate with their outer peripheral surfaces in contact with the cleaning belt 74. Thereby, the deposit on the outer peripheral surface of the draft roller can be cleaned by the cleaning belt 74.

  The first roller 71 is disposed in the vicinity of the middle roller 16. A gear member 63 having several gear teeth is fixed to the first roller 71. On the other hand, a boss portion 64 protrudes from one end of the middle roller 16 in the axial direction, and a rotation protrusion (feed cam portion, rotation engagement portion) 65 projects from the boss portion 64. The rotary protrusion 65 is formed so as to face in the radial direction, and its tip is configured to be able to engage with the gear member 63.

  The rotation protrusion 65 rotates together with the middle roller 16 and engages with the gear member 63 every rotation, thereby rotating the gear member 63 by one tooth. As a result, the first roller 71 is rotated and the cleaning belt 74 is fed by an appropriate amount.

  As a result, every time the middle roller 16 rotates, the fresh cleaning surface of the cleaning belt 74 comes into contact with the top roller 14, the third roller 15, and the apron belt 18, and the cleaning effect can be enhanced. Further, this intermittent feed stops the driving of the cleaning belt 74 except when necessary, and gives a large relative speed difference to the outer peripheral surfaces of the top roller 14, the third roller 15, and the apron belt 18 to be cleaned. can do. As a result, a better cleaning effect can be obtained.

  The cleaning device 60 includes a roller frame 75, and the roller frame 75 is disposed in the vicinity of the second roller 72. The cleaning device 60 includes a brush roller 76 that can be attached to and detached from the roller frame 75. The diameter of the brush roller 76 is configured to be larger than the diameters of the draft rollers (back roller 14, third roller 15 and middle roller 16) to be cleaned.

  A flexible brush sheet 77 is wound around the outer peripheral surface of the brush roller 76 and fixed by adhesion. This brush sheet 77 is configured as a so-called inclined pile ground, and is made by planting a large number of short piles lying down in a predetermined direction. Thus, an inclined pile brush is formed on the outer peripheral surface of the brush roller 76. The brush roller 76 is disposed so that the inclined pile brush is brought into contact with the outer peripheral surface (cleaning surface) of the cleaning belt 74. The cleaning belt 74 is tensioned by the tension mechanism, whereby the cleaning belt 74 is pressed against the inclined pile brush.

  A pulley 78 is rotatably supported on the roller frame 75. A rope 79 is wound around the pulley 78 and the second roller 72, whereby the pulley 78 and the second roller 72 are connected. When the brush roller 76 is set on the roller frame 75, the brush roller 76 is connected to the pulley 78 so as not to rotate relative to the pulley 78. Details of this configuration will be described later.

  Next, a configuration for sucking and removing the adhering matter on the draft roller will be described. As shown in FIG. 2, a suction cover 85 is installed on the upper surface of the cradle 20, and a first suction pipe 86 and a second suction pipe 87 are provided on the side surface of the suction cover 85. The first suction pipe 86 and the second suction pipe 87 are connected to the blower box (negative pressure source) 80, respectively.

  The first suction pipe 86 is extended to a position in the vicinity of the brush roller 76, and the suction port at the tip thereof is brought close to the inclined pile brush on the outer peripheral surface of the brush roller 76. The second suction pipe 87 is extended to a position in the vicinity of the front roller 17 so that the suction port at the tip thereof is close to the outer peripheral surface of the front roller 17. Thereby, the deposits on the surfaces of the brush roller 76 and the front roller 17 can be sucked and removed.

  With the above configuration, when the cleaning belt 74 is driven by the rotation protrusion 65 of the middle roller 16, the second roller 72 rotates, and the pulley 78 connected thereto via the rope 79 also rotates. As a result, as shown in FIG. 4, the brush roller 76 is rotated to rub the outer peripheral surface of the driven cleaning belt 74 in the opposite direction.

  As described above, fluff and the like adhering to the surface of the cleaning belt 74 is entangled by the short inclined pile on the outer peripheral surface of the brush roller 76, and is cleaned well. The adhering matter entangled with the brush roller 76 moves to the vicinity of the suction port of the first suction pipe 86 as the brush roller 76 rotates, and is sucked into the first suction pipe 86 and removed.

  As described above, the cleaning belt 74 and the brush roller 76 are interlocked by the rope 79. Therefore, when the cleaning belt 74 is driven, an action of rubbing in the opposite direction is performed at the contact point between the outer peripheral surface of the cleaning belt 74 and the outer peripheral surface of the brush roller 76 as shown by the arrow in FIG. It will be. As a result, the fluff wound around the brush roller 76 is slightly lifted from the surface of the brush roller 76 while being rolled into a belt shape, and a state as indicated by reference numeral 90 in FIG. Therefore, the deposit 90 can be easily peeled off from the surface of the brush roller 76 and can be easily removed by suction by the first suction pipe 86.

  FIG. 5 is a view of the cradle 20 and the suction cover 85 as viewed from above, and shows a configuration in which the blower box 80 is connected to the first suction pipe 86 and the second suction pipe 87 inside the suction cover 85.

  A suction path 88 made of a pipe is provided inside the suction cover 85. One end of the suction path 88 is connected to the blower box 80. The other end of the suction path 88 is appropriately bent to form an opening in the side surface of the suction cover 85, and the base of the second suction pipe 87 is connected to this portion.

  A branch path 89 is branched from the midway position of the straight portion of the suction path 88. The branch path 89 also forms an opening on the side surface of the suction cover 85, and the base of the first suction pipe 86 is connected to the opening.

  The suction port of the first suction pipe 86 is formed in an arc shape along the outer peripheral surface of the brush roller 76 as shown in FIG. Thereby, the clearance gap between the outer peripheral surface of the brush roller 76 and a suction opening can be made small, and the flow volume of the 1st suction pipe 86 can be reduced. As a result, even in the blower box 80 having a small capacity, a good suction effect by the first suction pipe 86 and the second suction pipe 87 can be obtained.

  Moreover, the angle (angle A1 of FIG. 5) which the said branch path 89 and the said straight part make is an angle of 50 degrees or more and 70 degrees or less, and is 60 degrees in this embodiment. Thereby, the pressure loss at the branch point of the branch path 89 can be suppressed to be small, and the outer peripheral surface of the front roller 17 can be satisfactorily sucked by the second suction pipe 87. When the angle A1 is less than 50 °, excessive pressure loss occurs on the second suction pipe 87 side. On the other hand, if the angle A1 exceeds 70 °, the suction pressure on the first suction pipe 86 side becomes weak, and the deposit 90 on the brush roller 76 cannot be satisfactorily sucked.

  Next, a configuration for mounting the brush roller 76 to the cleaning device 60 will be described with reference to FIG. FIG. 6 is a perspective view showing how the brush roller 76 is mounted on the roller frame 75 of the cleaning device 60.

  The pulley 78 supported by the roller frame 75 includes a mounting boss 91 at the center thereof. The mounting boss 91 is formed so as to protrude from the pulley 78 in a substantially frustoconical shape, and a fitting recess 92 is formed at the center thereof.

  The mounting boss 91 is attached to the pulley 78 so as to be slidable in the axial direction. In addition, a spring (not shown) is installed inside the pulley 78 to urge the mounting boss 91 in the protruding direction.

  A protrusion 93 is formed in the fitting recess 92 of the mounting boss 91. On the other hand, a groove 95 that can be fitted into the protrusion 93 is formed in the shaft portion 94 of the brush roller 76.

  With the above configuration, when the brush roller 76 is inserted into the roller frame 75 as indicated by an arrow in FIG. 6, the mounting boss 91 of the pulley 78 is pushed by the shaft portion 94 of the brush roller 76. When the position of the shaft portion 94 of the brush roller 76 coincides with the fitting recess 92 and the shaft portion 96 on the other side is inserted into a bearing (not shown) of the roller frame 75, the mounting boss 91 protrudes again, and the shaft portion 94 and the fitting recess 92 are fitted. Further, the protrusions 93 of the fitting recess 92 and the groove 95 of the shaft portion 94 are fitted, so that the pulley 78 and the brush roller 76 are connected so as not to be relatively rotatable. Thus, the mounting of the brush roller 76 to the cleaning device 60 is completed.

  The brush sheet 77 wound around the outer peripheral surface of the brush roller 76 is formed in an elongated shape having a length substantially equal to the outer periphery of the brush roller 76. And the outline of the longitudinal direction edge part of this brush sheet 77 contains the figure 97 (direction instruction | indication part) which broke the arrow. Further, the direction indicated by the figure 97 is made to coincide with the pile lying direction of the brush.

  The direction of the inclined pile brush can be easily confirmed by looking at the end of the brush sheet 77 having the above configuration. Accordingly, it is possible to prevent a mistake that the brush sheet 77 is attached in a direction opposite to the normal direction when the brush roller 76 is manufactured. Further, since the direction of the inclined pile brush can be easily seen by looking at the joint of the brush sheet 77 wound around the outer peripheral surface of the brush roller 76, the mistake of attaching the brush roller 76 to the cleaning device 60 in the direction opposite to the normal direction is made. It can be easily prevented.

  As described above, the draft device 7 included in the spinning machine 1 of the present embodiment includes the cleaning device 60 having the following configuration. That is, the cleaning device 60 includes a cleaning belt 74 having a cleaning surface that contacts the outer peripheral surface of the draft roller to clean the surface, and an inclined pile brush that can contact the cleaning surface of the cleaning belt 74. .

  Thus, even if the inclined pile brush is not pressed against the cleaning belt 74 with a strong force, the surface deposits can be effectively entangled and cleaned well. In the present embodiment, the urging force of the urging lever 62 (for applying tension to the cleaning belt 74) presses the cleaning belt 74 against the outer peripheral surface of the brush roller 76, and this level of pressing force is also good. A cleaning effect is obtained. Therefore, the cleaning effect of the draft roller can be improved without damaging the cleaning belt 74.

  The cleaning device 60 includes a rotatable brush roller 76, and the inclined pile brush is fixed to the outer peripheral surface of the brush roller 76.

  Thereby, the cleaning of the cleaning belt 74 by rotation of the brush roller 76 becomes possible, and the cleaning effect can be further enhanced.

  The cleaning device 60 includes a second roller 72, and the second roller 72 is configured to support the cleaning belt 74. The brush roller 76 is connected to the second roller 72 via a rope 79 or the like.

  Thereby, the structure for rotationally driving the brush roller 76 is simplified, and the manufacturing cost can be reduced.

  In the cleaning device 60 of the present embodiment, when the cleaning belt 74 is driven, the brush roller 76 rotates so that the outer peripheral surface rubs the cleaning surface of the cleaning belt 74 in the opposite direction.

  As a result, the fluff wound around the inclined pile brush on the outer peripheral surface of the brush roller 76 is lifted from the surface of the brush while being rolled into a belt shape by the rubbing action of the cleaning belt 74 and the brush roller 76 (FIG. 4 deposit 90). Accordingly, the deposit 90 such as fluff can be easily removed from the outer peripheral surface of the brush roller 76, so that cleaning becomes easier.

  The cleaning device 60 includes a roller frame 75. The roller frame 75 supports a brush roller 76 in a rotatable manner. The brush roller 76 is detachably attached to the roller frame 75.

  Thus, for example, when the brush on the outer peripheral surface of the brush roller 76 becomes sticky with long-term use or a large amount of fluff is accumulated on the brush, the original brush can be replaced with another brush roller. It is possible to easily return to a state that exhibits a good cleaning effect.

  The diameter of the brush roller 76 is larger than the diameters of the draft rollers (back roller 14, third roller 15, and middle roller 16).

  Thereby, an inclined pile brush having a large area can be provided on the outer peripheral surface of the large-diameter brush roller 76. Accordingly, the cleaning belt 74 can be stably and satisfactorily cleaned even if some fluff or the like accumulates on the brush, so that the frequency of maintenance can be reduced.

  In the present embodiment, the inclined pile brush is formed on the surface of a flexible brush sheet 77, and the brush sheet 77 is fixed to the outer peripheral surface of the brush roller 76. And the outline of the longitudinal direction edge part of the brush sheet 77 contains the figure 97 which shows the fall direction of a pile in an inclined pile brush.

  Thereby, the pile falling direction in the brush sheet 77 can be easily confirmed. Accordingly, it is possible to easily prevent a mistake that the brush sheet 77 is attached to the brush roller 76 in the direction opposite to the normal direction when the brush roller 76 is manufactured. Further, it is possible to easily prevent a mistake that the brush roller 76 is attached to the cleaning device 60 in the direction opposite to the normal direction.

  Further, the cleaning device 60 of the present embodiment includes a first suction pipe 86, and the suction port of the first suction pipe 86 faces the inclined pile brush on the outer peripheral surface of the brush roller 76.

  As a result, the fluff and the like entangled with the inclined pile brush can be sucked and removed by the first suction pipe 86. Therefore, the maintenance work for removing the deposit 90 accumulated on the inclined pile brush becomes unnecessary, and the burden on the operator can be remarkably reduced.

  Further, the cleaning device 60 of the present embodiment includes a second suction pipe 87, and the suction port of the second suction pipe 87 faces the outer peripheral surface of the front roller 17. The branch path 89 is branched from the straight portion of the suction path 88 connecting the second suction pipe 87 and the blower box 80 at an angle (60 °) of 50 ° or more and 70 ° or less. The first suction pipe 86 is connected.

  Accordingly, the first suction pipe 86 can satisfactorily suck the deposit 90 on the outer peripheral surface of the brush roller 76, and at the same time, the pressure loss on the second suction pipe 87 side can be suppressed and the front roller 17 can be cleaned well. .

  Further, the cleaning device 60 of the present embodiment includes a tension mechanism including a tension roller 73, an urging lever 62, and an urging spring. By applying tension to the cleaning belt 74 by the tension mechanism, the cleaning belt 74 is moved. The brush roller 76 is configured to press against the outer peripheral surface (inclined pile brush). The tension mechanism is configured to release the tension of the cleaning belt 74 by rotating the biasing lever 62 against the biasing spring.

  Accordingly, by releasing the tension applied to the cleaning belt 74 by rotating the urging lever 62, the pressure contact between the cleaning belt 74 and the inclined pile brush can be released, whereby the brush roller 76 (inclined pile brush) can be moved. Can be easily replaced. Therefore, the burden of maintenance work can be reduced.

  Although the preferred embodiment of the present invention has been described above, the above configuration can be changed as follows, for example.

  Instead of installing the inclined pile brush on the outer peripheral surface of the brush roller 76, for example, an inclined pile brush can be provided on the pad and the pad can be changed to contact the surface of the cleaning belt 74.

  The first suction pipe 86 that sucks the outer peripheral surface of the brush roller 76 can be omitted. In this case, it is conceivable that the deposit 90 on the outer peripheral surface of the brush roller 76 is removed by an operator by hand. Alternatively, the brush roller 76 may be replaced with a new one when the deposit has accumulated to some extent.

  The cleaning belt 74 and the brush roller 76 can be changed to a configuration in which, for example, a transmission belt is used instead of the rope 79. Alternatively, the second roller 72 is provided with a drive gear, a driven gear that can be connected to the brush roller 76 is provided instead of the pulley 78, and an intermediate gear that meshes with both the driven gear and the drive gear is provided. Thus, the cleaning belt 74 and the brush roller 76 can be connected to each other. Further, for example, an electric motor can be separately provided without interlocking the cleaning belt 74 and the brush roller 76, and the brush roller 76 can be driven by this electric motor.

  In the cleaning device 60 of the above-described embodiment, the middle roller 16 (apron belt 18), the third roller 15, and the back roller 14 are to be cleaned by the cleaning belt 74. However, the draft roller to be cleaned by the cleaning belt 74 can be arbitrarily changed. For example, the front roller 17 can be cleaned by the cleaning belt 74.

  The cleaning device 60 described above can be applied to other types of draft devices having different draft roller configurations (for example, the number of draft rollers).

  The draft device 7 provided with the cleaning device 60 can be applied to other textile machines such as a rough spinning machine, in addition to the spinning machine 1 described above.

1 is a front view of a spinning machine according to an embodiment of the present invention. The side view which shows the cleaning apparatus of a draft apparatus and a draft roller. The perspective view which shows the cleaning apparatus of a draft apparatus and a draft roller. The side surface enlarged view which shows a mode that the inclination pile brush has entangled the deposit | attachment on the surface of a cleaning brush. The figure which shows the structure of the suction path | route inside a suction cover. The perspective view which shows a mode that a brush roller is mounted | worn on the flame | frame of a cleaning apparatus.

Explanation of symbols

1 Spinning machine (textile machine)
14 Back roller (draft roller)
15 Third roller (draft roller)
16 Middle roller (draft roller)
60 Cleaning device 72 Second roller (belt support roller)
74 Cleaning belt (endless belt)
75 Roller frame (frame)
76 Brush roller 77 Brush sheet 79 Rope 80 Blower box (negative pressure source)
86 1st suction pipe (suction pipe)
87 Second suction pipe

Claims (12)

An endless belt having a cleaning surface that contacts the peripheral surface of the draft roller to clean the surface;
An inclined pile brush that can contact the cleaning surface of the endless belt;
A cleaning device for a draft roller, comprising: The draft roller cleaning device according to claim 1,
A cleaning device for a draft roller, comprising a rotatable brush roller, wherein the inclined pile brush is fixed to an outer peripheral surface of the brush roller. The draft roller cleaning device according to claim 2,
A belt support roller for supporting the endless belt;
A cleaning device for a draft roller, wherein the brush roller is connected to the belt support roller. A draft roller cleaning device according to claim 2 or 3,
When the endless belt is driven, the brush roller rotates so that the outer peripheral surface of the brush roller rubs the cleaning surface of the endless belt in the opposite direction. A draft roller cleaning device according to any one of claims 2 to 4,
A roller frame that rotatably supports the brush roller;
A draft roller cleaning device, wherein the brush roller is detachably attached to the roller frame. A draft roller cleaning device according to any one of claims 2 to 5,
A draft roller cleaning device, wherein a diameter of the brush roller is larger than a diameter of the draft roller. A draft roller cleaning device according to any one of claims 2 to 6,
The inclined pile brush is formed on the surface of a flexible brush sheet, and the brush sheet is fixed to the outer peripheral surface of the brush roller.
The draft roller cleaning device, wherein a contour of an end portion in a longitudinal direction of the brush sheet includes a direction indicating portion indicating a pile falling direction in the inclined pile brush. A draft roller cleaning device according to any one of claims 1 to 7,
A draft roller cleaning device comprising a suction pipe, wherein a suction port of the suction pipe faces the inclined pile brush. A draft roller cleaning device according to claim 8,
A second suction pipe is provided, and the suction port of the second suction pipe faces the outer peripheral surface of the draft roller,
A branch path is branched at an angle of not less than 50 ° and not more than 70 ° from a straight portion of a path connecting the second suction pipe and the negative pressure source, and the branch path is connected to the suction pipe. Draft roller cleaning device. A draft roller cleaning device according to any one of claims 1 to 9,
A tension mechanism for applying tension to the endless belt, and the endless belt is pressed against the inclined pile brush by the tension mechanism;
A draft roller cleaning device, wherein the tension mechanism is configured to be able to release the tension of the endless belt.   A draft device comprising the draft roller cleaning device according to any one of claims 1 to 10.   A textile machine comprising the draft device according to claim 11.

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