JP2008222433A - Fiber machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve working efficiency in removing yarn without removing a roller from above a support shaft without damaging the support shaft of the roller for removing the yarn by arranging an exclusive part for winding the yarn so that the yarn slipped out of the roller is not wound to the support shaft of the roller. <P>SOLUTION: This fiber machine has the roller for carrying the yarn. A yarn removal support tool for winding the yarn slipped out of the shaft end of the roller is arranged on the support shaft of the roller and at the end side of the roller. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention is a textile machine including a roller for conveying a yarn, and the yarn is used to wind a yarn off the shaft end of the roller on a support shaft of the roller and on an end portion side of the roller. The present invention relates to a textile machine in which a removal support tool is installed.

  The yarn to be processed by the textile machine is conveyed to each processing unit by the guide of a roller installed in the textile machine. At this time, when the surface of the roller is slippery or when the yarn breaks during processing, the yarn may be wound around the roller or the support shaft of the roller. In this case, it is necessary to cut the wound thread. However, if the wound thread is cut directly with a cutter, the roller or the support shaft itself may be damaged, or the wound position will not enter the cutter. In the case of a narrow place, there is a problem that the removal work efficiency is poor because the roller must be removed and cut.

In order to solve this problem, Patent Documents 1 and 2 disclose a roller (separate roller, rotating body) in which a slit (gap) is provided in the roller itself.
Japanese Utility Model Publication No. 5-22575 Japanese Patent Laid-Open No. 9-255231

  However, as in Patent Documents 1 and 2, when a slit (gap) is provided in the roller itself, the yarn wound around the roller itself can be cut efficiently, but the yarn wound around the support shaft portion of the roller. Is difficult to cut. Also, in the case of a roller that nips and conveys a thread, such as a nip roller, if a slit (gap) is provided in the roller itself, the thread cannot be sufficiently nipped, and a slit (gap) is functionally formed in the roller itself May not be able to be provided.

In other words, when the thread is wound around the support shaft of the roller, the thread wound on the support shaft is removed with a cutter or the like, so that the support shaft of the roller is damaged or the cutter cannot enter the winding position on the support shaft. Therefore, it is necessary to remove the roller from the support shaft in order to remove the yarn.
The present invention has been made to solve such a problem, and by providing a dedicated part for winding the yarn so that the yarn does not wind on the support shaft of the roller, the work efficiency of yarn removal is good. An object is to provide a textile machine.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

  That is, according to the first aspect of the present invention, the textile machine includes a roller for conveying the yarn, and the yarn removed from the shaft end of the roller is wound on the support shaft of the roller and on the end portion side of the roller. A tool for assisting yarn removal for skein is installed.

  Here, if the roller for conveying the yarn is a roller that is in contact with the yarn in the textile machine that conveys the yarn, the roller that rotates by itself (for example, a delivery roller), the yarn traveling, or another roller It does not matter whether it is a roller (for example, a nip roller) that is driven in conjunction with this driving. In addition, any spinning machine or winder may be used as long as it is a textile machine including a roller for conveying yarn, and is not limited.

With the above configuration, the following effects are obtained.
The yarn removed from the roller wraps around the yarn removal assisting tool located on the radially outer side of the support shaft, not on the support shaft.

In Claim 2, in the textile machine of Claim 1,
The yarn removal assisting tool includes a receiving portion that receives a yarn on the radially outer side of the support shaft, and the receiving portion has one or a plurality of gaps in the circumferential direction of the support shaft.

With the above configuration, the following effects are obtained.
The yarn released from the roller is wound so as to cross the gap provided in the receiving portion.

In claim 3, the textile machine according to claim 1 or 2,
The end portion of the yarn removal assisting tool is inserted into the inner diameter portion of the roller.

With the above configuration, the following effects are obtained.
The inner diameter portion of the roller is sealed, and the yarn is surely wound around the receiving portion without allowing the yarn detached from the roller to enter the inner diameter portion of the roller.

In Claim 4, it is the textile machine of Claim 2 or 3,
The outer peripheral surface of the receiving part of the yarn removal assisting tool is formed in a taper that decreases in diameter from the roller toward the yarn removal assisting tool.

With the above configuration, the following effects are obtained.
The yarn released from the roller is wound around the outer side in the axial direction of the roller on the receiving portion, and is not wound on the roller end side of the receiving portion.

  As effects of the present invention, the following effects can be obtained.

  According to the first aspect, since the yarn is wound around the yarn removal assisting tool on the radially outer side of the support shaft, the winding position of the yarn is closer to the operator, and the tool such as a cutter is easily inserted. Accordingly, the yarn wound around the yarn removal assisting tool can be removed without removing the roller, and a textile machine with good yarn removal work efficiency can be provided.

  In claim 2, while obtaining the same effect as the textile machine according to claim 1, by moving the cutter along the gap provided in the receiving portion, the cutter can be prevented from contacting the surface of the receiving portion, The thread can be easily cut.

  According to a third aspect of the present invention, since the yarn wound off from the roller can be prevented from entering the inner diameter portion of the roller, the textile machine in which the function of the roller does not deteriorate due to the wound yarn entangled with the inner diameter portion of the roller is provided. Can be provided.

  According to the fourth aspect of the present invention, since the yarn wound off from the roller is wound at a position away from the roller on the receiving portion, the function of the roller is deteriorated due to the wound yarn being entangled with the inner diameter portion of the roller. Absent. Further, since the yarn winding position is exposed from the roller, it is possible to provide a textile machine that can further easily cut the yarn on the receiving portion.

Hereinafter, a spinning machine 100 according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a side sectional view of a spinning machine 100 according to an embodiment of the present invention.

  As shown in FIG. 1, the spinning machine 100 includes a sliver supply unit 1, a draft device 2, a spinning device 3, a yarn feeding device 4, a yarn defect detecting device 5, and a winding device 6. .

  The sliver supply unit 1 includes a sliver 11 that is a raw material, and a sliver guide 12 that guides the sliver 11 to the draft device 2.

  The draft device 2 includes four pairs of draft rollers that sandwich and extend the sliver 11. The four pairs of draft rollers are composed of a back roller pair 21, a third roller pair 22, a second roller pair 23, and a front roller pair 24 arranged along the conveying direction of the sliver 11. Further, an apron band 25 which is an endless belt made of leather or synthetic rubber is wound around the second roller pair 23.

  The spinning device 3 is a pneumatic spinning device that manufactures a yarn (binding yarn) 31 by causing a swirling airflow to act on the sliver 11 stretched by the draft device 2.

  The yarn feeding device 4 is a device that feeds the yarn 31 manufactured by the spinning device 3 to the winding device 6, and includes a delivery roller 41 and a nip roller unit 42. The nip roller unit 42 includes a nip roller 44 at one end of the lever 43 and a rotation support shaft 45 at the other end. The rotation support shaft 45 is supported by the frame of the spinning machine 100. The nip roller 44 is supported so as to be rotatable about the rotation support shaft 45 so that the nip roller 44 can approach and leave the delivery roller 41.

  The yarn defect detecting device 5 is a device that detects a yarn defect of the yarn 31 being sent to the winding device 6, and the yarn defect portion is removed based on the yarn defect detection information in the yarn defect detecting device 5. Thus, winding of the defective yarn around the package 61 is prevented. Further, the yarn defect detecting device 5 includes a cutting device (not shown) for cutting the yarn 31 in response to the detection of the yarn defect, and a yarn splicing that connects both ends of the yarn 31 that has been cut once to cut out the yarn defect portion. A device (not shown) is provided.

  The winding device 6 is a device that forms the package 61 by traversing and winding the yarn 31 manufactured by the spinning device 3 in the axial direction of the bobbin 62. The package 61 or the bobbin 62 rotates in response to the driving force of the driving drum 63, and the yarn 31 is wound around the bobbin 62 to form the package 61.

Next, the nip roller unit 42 equipped with the yarn removal assisting tool 46 will be described with reference to the drawings.
FIG. 2 is a perspective view before the thread removal assisting tool 46 is attached to the nip roller unit 42,
FIG. 3 is a perspective view when the yarn removal assisting tool 46 is attached to the nip roller unit 42,
4 is a longitudinal center sectional view of FIG.

  As shown in FIG. 2, the nip roller unit 42 includes a lever 43, a nip roller 44, a rotation support shaft 45, a thread removal support tool 46, a snap ring 47, a support shaft 48, a cover 49, and a screw 50. And is composed of. A rotation support shaft 45 is fixed to one end portion of the lever 43, and a support shaft 48 is fixed to the other end portion via a nut 51.

  The support shaft 48 is a shaft for attaching the nip roller 44 to the lever 43. The support shaft 48 includes a male screw 48a, a large diameter portion 48b, and a small diameter portion 48c that are disposed along the axial direction. The male screw 48 a is a screw portion for fitting with the female screw 43 a formed on the lever 43. Further, the nip roller 44 is supported by the large diameter portion 48b and the small diameter portion 48c. A female screw 48d is formed inside the small diameter portion 48c.

  The lever 43 has a female screw 43a formed at one end in the longitudinal direction of the lever 43, a female screw 43b formed at the central portion in the longitudinal direction, and a female for fixing the rotation support shaft 45 to the other end in the longitudinal direction. Screws (not shown) are formed. Then, the support shaft 48 is attached to the lever 43 by fitting the male screw 48 a attached with the nut 51 to the female screw 43 a. Further, the cover 49 is fixed to the lever 43 by fitting the screw shaft 52 to the female screw 43 b via the cover 49. The cover 49 is formed with an insertion hole 49 a for the screw shaft 52.

  Next, attachment of the nip roller 44 to the support shaft 48 will be described. Since the nip roller 44 can be attached to the support shaft 48 without the thread removal assisting tool 46, the attachment without the thread removal assisting tool 46 will be described first.

  As shown in FIG. 4, the nip roller 44 includes a metal cylindrical body 44a, a rubber body 44b disposed outside the cylindrical body 44a, and a bearing 53 fixed to the inner peripheral surface of the cylindrical body 44a. Is done. A support shaft 48 is fixed to the bearing 53. Specifically, the large diameter portion 48b and the small diameter portion 48c are inserted into the nip roller 44 from one side in the axial direction. The shaft end surface of the large diameter portion 48 b comes into contact with the bearing 53, and the small diameter portion 48 c is inserted into the bearing 53. A washer 54 and a screw 50 are inserted into the nip roller 44 from the other side in the axial direction. Then, the screw 50 is fitted into the female screw 48 d formed in the small diameter portion 48 c via the washer 54, and the washer 54 comes into contact with the bearing 53. In this way, the bearing 53 is fixed to the support shaft 48, and the nip roller 44 is rotatably supported by the support shaft 48 via the bearing 53.

  In the case of the above configuration, a part of the support shaft 48 where the nut 51 is disposed is exposed from the nip roller 44. The nip roller 44 is a roller that is brought into contact with the delivery roller 41 to nip and convey the yarn 31 between the rollers 41 and 44. Then, the yarn 31 is always conveyed on the nip roller 44. In this state, when the conveyed yarn 31 is removed from the nip roller 44, the removed yarn is wound on the nut 51. That is, the outer peripheral surface of the nut 51 is a portion around which the thread 31 that has come off from the nip roller 44 is wound.

  Therefore, in the spinning machine 100 according to the embodiment of the present invention, the yarn removal assisting tool 46, which is a tool for assisting the yarn cutting, is disposed on the nut 51 (support shaft 48) that is the portion around which the yarn 31 is wound. ing. Here, the yarn removal assisting tool 46 is configured to facilitate the cutting of the yarn wound around itself. In the spinning machine 100, the yarn 31 is wound around the yarn removal assisting tool 46 so that the yarn can be easily cut.

  The thread removal assisting tool 46 that is a cylindrical body is disposed between the lever 43 and the nip roller 44 on the support shaft 48. In order to stop the thread removal support tool 46 on the support shaft 48, the thread removal support tool 46 is sandwiched between the lever 43 and the snap ring 47.

The thread removal support tool 46 will be described with reference to the drawings.
5A and 5B are perspective views of the thread removal assisting tool 46, wherein FIG. 5A is a perspective view when the cylindrical member 46a is the front, and FIG. 5B is a view when the flat plate member 46b is the front. A perspective view and (c) are plan views.

  As shown in FIG. 5, the thread removal assisting tool 46 includes a cylindrical member 46a, a flat plate member 46b, and a receiving portion 46c that connects the cylindrical member 46a and the flat plate member 46b, and is made of polyacetal (POM). ) And other resins.

  The yarn removal assisting tool 46 is a component attached to the support shaft 48 of the nip roller 44. When the axial direction of the support shaft 48 is taken as a reference, a cylindrical member 46a, a receiving portion 46c, and a flat plate member 46b are arranged in this order along the axial direction of the support shaft 48 in the thread removal assisting tool 46. Yes. In addition, the thread removal assisting tool 46 is formed with an incision 55 in the axial direction of the support shaft 48 at one place in the circumferential direction of the support shaft 48. This notch 55 is composed of three parts, that is, a notch 55a, a gap 55c, and a notch 55b.

  The cylindrical member 46 a is a part that is inserted into the inner diameter portion of the nip roller 44. The cylindrical member 46 a has an outer diameter that is approximately the same as the inner diameter of the nip roller 44, and an inner diameter that allows the support shaft 48 (large diameter portion 48 b) of the nip roller 44 to pass therethrough. Further, since the cylindrical member 46a forms a cut 55 of the thread removal assisting tool 46, a part of the side surface constituting the cylinder is cut off in the axial direction as the cut 55a.

  The flat plate member 46b is a member that is abutted against the lever 43 and has a substantially uniform thickness. The flat plate member 46b is open to the extent that the central portion does not interfere with the support shaft 48 or the nut 51 of the nip roller 44 in the same manner as the cylindrical member 46a. Further, since the flat plate member 46b forms a cut 55 of the thread removal assisting tool 46, a part of the outer peripheral surface is cut off as the cut 55b.

  The receiving portion 46c is a cylindrical member having an outer diameter smaller than that of the cylindrical member 46a, and the inner diameter is the same as that of the cylindrical member 46a and does not interfere with the support shaft 48 or the nut 51 of the nip roller 44. Since the outer diameter of the receiving portion 46c is smaller than the outer diameter of the cylindrical member 46a, a step is generated by the difference in the outer diameter between the cylindrical member 46a and the receiving portion 46c. Here, since the cylindrical member 46a is inserted into the inner diameter portion of the nip roller 44, the axial end position of the nip roller 44 and the axial end position of the receiving portion 46c are substantially the same in the axial direction of the support shaft 48. The outer peripheral surface of 46c is a portion around which the yarn 31 that has come off from the nip roller 44 is wound. Further, since the receiving portion 46c forms a cut 55 of the yarn removal assisting tool 46, a part of the side surface constituting the cylinder is cut off in the axial direction to form a gap 55c. That is, the receiving portion 46 c has a gap 55 c formed at one place in the circumferential direction of the support shaft 48.

  Further, as shown in FIG. 5C, the receiving portion 46c is formed with a taper whose outer surface is reduced in diameter from the cylindrical member 46a side to the planar member 46b side.

  The cut 55 is formed by a cut 55a that is a cut-off portion of the cylindrical member 46a, a cut 55b that is a cut-off portion of the flat plate member 46b, and a gap 55c formed in the receiving portion 46c. The cut 55 does not necessarily need to cover the cylindrical member 46a or the flat plate member 46b, and may be any one in which a gap 55c is formed at one place in the circumferential direction of the support shaft 48 at least in the receiving portion 46c. Further, the number of places where the gap 55c (cuts 55) is formed may be a plurality of places instead of one place in the circumferential direction. The shape and width of the gap 55c (the cut 55) are not limited to those shown in FIG. 5, and may be any shape and width that allow a cutting tool such as a cutter to enter.

  The attachment of the thread removal support tool 46 to the nip roller unit 42 will be described with reference to FIGS. The thread removal assisting tool 46 has the cylindrical member 46a facing the nip roller 44, and a part of the cylindrical member 46a is inserted into the inner diameter portion of the nip roller 44 (inside the cylindrical body 44a). Further, the support shaft 48 is inserted from the planar member 46b side. At this time, the thread removal assisting tool 46 is installed so that the cut 55 is on the counter-rotating support shaft 45 side (support shaft 48 side) in the longitudinal direction of the lever 43. Here, the notch 55 needs to be exposed to at least the outside so that it can be visually recognized by the operator. The cover 49 is a member that protects the nip roller 44 supported by the support shaft 48, but is configured so as not to cover the support shaft 48 in the longitudinal direction of the lever 43, and the notch 55 is exposed from the cover 49.

  As shown in FIG. 3, when the yarn removal assisting tool 46 is installed in the nip roller unit 42, the receiving portion 46c is exposed to the outside without being blocked by other members. Further, the cut 55 is elongated in the direction perpendicular to the circumferential direction of the receiving portion 46c. Therefore, the yarn removed from the nip roller 44 is wound so as to be in the circumferential direction of the receiving portion 46c and in a direction perpendicular to the cut 55 (gap 55c).

  As shown in FIG. 4, the outer peripheral surface of the receiving portion 46 c and the outer peripheral surface of the nut 51 are formed with a distance D in the radial direction of the support shaft 48. Since the receiving portion 46c is tapered, the distance D is longer on the nip roller 44 side and shorter on the cover 49 side. Accordingly, the yarn released from the nip roller 44 is wound in a state of being offset toward the flat plate member 46b side of the outer peripheral surface of the receiving portion 46c.

  Further, when the cutting means such as a cutter is inserted into the cut 55 by the distance D, the cutter or the like need not be brought into contact with the outer peripheral surface of the nut 51. Therefore, if this distance D is secured to a certain length, the cutter can be inserted into the notch 55 and moved along the longitudinal direction of the notch 55 without interfering with the outer peripheral surface of the nut 51 and the like. The thread 31 wound around the receiving portion 46c can be easily cut.

  As shown in FIGS. 3 and 4, the cylindrical member 46 a is inserted into the inner diameter portion of the nip roller 44, thereby sealing the inner diameter portion of the nip roller 44. Thereby, when the yarn removed from the nip roller 44 is wound around the receiving portion 46c, the yarn can be prevented from entering the inner diameter portion of the nip roller 44.

  The spinning machine 100 according to the embodiment of the present invention is limited to the case where the yarn removal assisting tool 46 is installed on the support shaft 48 of the nip roller 44, but the yarn comes into contact with the roller and comes off the roller and is wound around the support shaft side. As long as the roller may stick (for example, a draft roller, a package roller, etc.), the installation place of the yarn removal assisting tool 46 is not limited to the support shaft 48 of the nip roller 44.

1 is a side cross-sectional view of a spinning machine 100 according to an embodiment of the present invention. FIG. 6 is a perspective view before the yarn removal assisting tool 46 is mounted on the nip roller unit 42. The perspective view at the time of mounting | wearing the nip roller unit 42 with the thread | yarn removal assistance tool 46. FIG. FIG. 4 is a longitudinal center sectional view of FIG. 3. The perspective view of the thread | yarn removal assistance tool 46, and a top view.

Explanation of symbols

42 Nip roller unit 43 Lever 44 Nip roller 44a Cylindrical body 44b Rubber body 45 Rotating spindle 46 Thread removal support tool 46a Cylindrical member 46b Flat plate member 46c Receiving part 48a Male screw 49 Cover 51 Nut 52 Screw shaft 55 Cutting

Claims (4)

A textile machine comprising a roller for conveying yarn,
A textile machine, wherein a yarn removal assisting tool for winding a yarn off the shaft end of the roller is installed on the support shaft of the roller and on the end side of the roller. The yarn removal assisting tool comprises a receiving portion for receiving a yarn on the radially outer side of the support shaft;
The textile machine according to claim 1, wherein the receiving portion has one or a plurality of gaps in a circumferential direction of the support shaft.   The textile machine according to claim 1 or 2, wherein an end portion of the yarn removal assisting tool is inserted into an inner diameter portion of the roller.   The textile machine according to claim 2 or 3, wherein the outer peripheral surface of the receiving portion of the yarn removal assisting tool is formed in a taper that decreases in diameter from the roller toward the yarn removal assisting tool.

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