CN107523904B

CN107523904B - Winding device

Info

Publication number: CN107523904B
Application number: CN201710446764.7A
Authority: CN
Inventors: 新原正己
Original assignee: Toyoda Automatic Loom Works Ltd
Current assignee: Toyota Industries Corp
Priority date: 2016-06-17
Filing date: 2017-06-14
Publication date: 2020-01-10
Anticipated expiration: 2037-06-14
Also published as: JP6720716B2; CH712582A2; CH712582B1; DE102017112929A1; CN107523904A; JP2017222956A

Abstract

The winding device is provided with: the device comprises a plurality of guide rollers, a seamless belt wound around the guide rollers, a bobbin rotated by the belt, and a calender roller. The winding device is configured to wind the lap compressed by the calender roll. The plurality of guide rollers includes a supply guide roller that receives supply of the lap from the calender roller. The winding device includes a lap compressing section for compressing the lap between the supply guide roller and the lap winding device.

Description

Winding device

Technical Field

The present invention relates to a winding device.

Background

As a winding method, there is a Wind up (Wind up) method in which a cotton roll is wound around a bobbin while being pressed against two rollers. In this mode, the lap is compressed by two loads on the roller for each lap turn around the bobbin. When the lap passes through the roller, the compressed and released lap sucks in air. Therefore, the lap repeatedly sucks and discharges air, and the fibers are stirred together between the sheets. Therefore, when the lap is used in a combing machine, there is a case where smooth peeling of the lap is hindered. That is, blocking (chipping) may occur. In addition, the lap may have a low winding density and cannot be wound around the bobbin with a sufficient weight. The lap is a lap formed by arranging a plurality of usually 20 to 36 slivers in a sheet shape having a width of about 30 cm.

To remedy the above drawbacks, winding devices have been proposed which wind the lap around a bobbin which rotates at a fixed position by means of an endless, seamless belt. Refer to Japanese patent application laid-open No. Hei 10-511632. As shown in fig. 10, the winding device winds the lap L around a bobbin 72 driven by a circulating endless belt 71. The belt 71 is given tension by a tension adjusting device 73. The belt 71 has an annular ring 74 formed between two direction-changing rollers R1, R2. The bobbin 72 is disposed in the annular hole 74 so as to be rotatable about a fixed axis 75. The bobbin 72 and the direction-changing rollers R1 and R2 are sized such that the annular ring 74 surrounds the bobbin 72 at an initial minimum winding angle of greater than 120 ° at the start of the winding process, and are disposed opposite to each other.

The belt 71 is also wound around direction-changing rollers R3, R4, and R5 other than the direction-changing rollers R1 and R2. The direction changing rollers R4 and R5 are disposed at positions that move in a state where the belt 71 passes below the lap 76 when the belt 71 passes through the full bobbin. The direction-changing roller R5 rotates at a fixed position, and the direction-changing roller R4 is provided so as to be movable by the tension adjusting device 73 between a position of a winding start state indicated by a two-dot chain line in fig. 10 and a position of a full-tube state indicated by a solid line. The tension adjusting device 73 is connected to the control device 77 in order to form a tension in relation to the diameter of the unwound reel 76.

As shown in fig. 11, the bobbin 72 is fixedly secured between two

winding plates

78, 79. Both

winding plates

78, 79 are provided with

projections

80, 81. The bobbin 72 is fixed in a state of being fitted with the

projections

80 and 81.

The sliver, which is the raw material of the lap, is a cotton block and is an elastomer containing much air. Therefore, when winding the cotton roll around the bobbin, the cotton roll needs to be pressed by some method and wound while removing air. In the device disclosed in the above publication, the roll L is pressed by a plurality of calender rolls, not shown, to remove air, and then the roll L is supplied to the direction-changing roll R2. However, the lap L again contains air from the calender roll to the direction-changing roll R2. Therefore, air is pushed out when the lap L is wound around the bobbin 72 by the belt 71, and the width of the lap L is widened. In order to suppress this, in the above-described apparatus, winding plates (flanges) 78, 79 are provided on the left and right of the bobbin 72.

However, if the winding plates (flanges) 78, 79 are provided, a gap t is required between the belt 71 and the winding plates (flanges) 78, 79 as shown in fig. 11. The cotton is exposed to the gap t. The exposed cotton causes a defective lap. The poor quality of the rolls is mainly the adhesion of the ears.

Disclosure of Invention

The invention aims to provide a winding device which can wind a cotton roll without generating poor cotton roll.

A winding device according to an aspect of the present invention for achieving the above object includes: a plurality of guide rollers, a seamless belt wound around the guide rollers, a bobbin rotated by the belt, and a calender roller. The winding device is configured to wind the lap compressed by the calender roll. The plurality of guide rollers includes a supply guide roller that receives supply of the lap from the calender roller. The winding device includes a lap compression unit for compressing the lap between the supply guide roller and the lap winding device.

Drawings

Fig. 1 is a schematic view of a winding apparatus of the first embodiment.

Fig. 2 is a schematic sectional view taken along line a-a of fig. 1.

Fig. 3A is a front view showing the relationship between the slider and the bobbin supporting body.

Fig. 3B is a sectional view taken along line B-B of fig. 3A.

Fig. 4 is a cross-sectional view taken along line C-C of fig. 3A.

Fig. 5 is a schematic view of the winding device with the lap wound in a full tube.

Fig. 6 is a schematic view of a winding apparatus of the second embodiment.

Fig. 7 is a schematic cross-sectional view of the full bobbin and the guide roller of fig. 6.

Fig. 8 is a schematic view of a winding apparatus of the third embodiment.

Fig. 9 is a schematic view of a winding apparatus according to another embodiment.

Fig. 10 is a schematic view of a conventional winding device.

Fig. 11 is a schematic cross-sectional view of the device of fig. 10 at the beginning of lap formation.

Detailed Description

(first embodiment)

A first embodiment of a winding device embodying the present invention will be described below with reference to fig. 1 to 5.

As shown in fig. 1, the winding device includes a plurality of guide rollers 11 to 15, a seamless belt 16 wound around the guide rollers 11 to 15, a bobbin 17 rotated by the belt 16, and a calender roller 18, and is configured to wind a lap 19 compressed by the calender roller 18.

Calender roll 18 comprises four rolls. Of the four calender rolls 18, the final calender roll 18a is a roll with which the lap 19 is engaged last. As shown in fig. 2, the final calender roll 18a is set in a state in which the cotton roll 19 is biased downward by a spring 20. As shown in fig. 1, the other three rollers 18b are configured to rotate in a state in which the roller 18a or 8b facing the front side is biased by the spring 20.

Two

guide rollers

11, 12 of the guide rollers 11 to 15 are configured in such a way that: when the lap 19 is wound, the movement locus of the bobbin support shaft 21 coincides with a bisector of a line connecting the center axes of the

guide rollers

11 and 12. The guide roller 11 is disposed at a position closest to the calender roller 18 among the guide rollers 11 to 15. That is, the guide roller 11 is a supply guide roller 11 that supplies the lap 19 from the calender roller 18. A first end of the rod 24 is rotatably supported on a drive shaft of the guide roller 13. The guide roller 12 is rotatably supported by the second end of the lever 24. The guide roller 12 is a movable guide roller 12 provided to be movable between a winding position indicated by a solid line and a doffing position indicated by a two-dot chain line in fig. 1 by a driving mechanism, not shown, such as an air cylinder. That is, the moving guide roller 12 swings between the winding position and the doffing position.

The two

guide rollers

13 and 14 are disposed below the supply guide roller 11 and the movement guide roller 12. The

guide rollers

13 and 14 are disposed at positions at which the tape 16 is guided so that the tape 16 passes below the full-length bobbin 22. The guide roller 13 is driven by a motor 23 and functions as a drive roller.

The guide roll 14 is disposed below the calender roll 18. The guide roller 14 is movable by the air cylinder 25 as a moving mechanism to a winding start position P1 indicated by a solid line in fig. 1, a full pipe position P2 indicated by a two-dot chain line, and a lap-down position P3.

The guide roller 15 is disposed so as to abut against the outer peripheral surface of the belt 16 at a position closer to the full bobbin 22 than the guide roller 14 disposed at the doffing position P3. As shown in fig. 2, the width of the belt 16 is set to be wider than the width of the cotton roll 19.

The winding device includes a bobbin support shaft 21, a guide mechanism 26 (fig. 3A and 3B), and a regulating mechanism 27 (fig. 4). The bobbin support shaft 21 fixes the bobbin 17. The guide mechanism 26 guides the movement of the bobbin support shaft 21 in the direction orthogonal to the axial direction of the bobbin support shaft 21. The regulating mechanism 27 regulates the movement of the bobbin 17 supported by the bobbin support shaft 21 in the axial direction of the bobbin support shaft 21.

As shown in fig. 3A, 3B, and 4, the guide mechanism 26 includes a plurality of guide shafts 28, a slider 29, and a bearing 30. In this embodiment, the guide shafts 28 are two. Each guide shaft 28 extends in a direction orthogonal to the axial direction of the bobbin support shaft 21. The slider 29 is supported so as to be movable along the guide shaft 28. The bearing 30 is provided on the slider 29 and rotatably supports the bobbin support shaft 21. In this embodiment, the bobbin support shaft 21 is supported by a unilateral support.

The slider 29 is held in a state of pressing the bobbin 17 fixed to the bobbin support shaft 21 against the supply guide roller 11 and the movement guide roller 12 via the belt 16. When the cotton roll 19 is wound around the bobbin 17, the slider 29 moves downward as the winding diameter of the cotton roll 19 wound around the bobbin 17 increases. That is, the guide mechanism 26 holds the support shaft 21 at a position where the bobbin 17 is pressed against the two supply guide rollers 11 and the moving guide roller 12 via the belt 16 at the start of winding. The guide mechanism 26 moves the bobbin support shaft 21 so that the distance from the supply guide roller 11 and the movement guide roller 12 increases as the winding diameter of the lap 19 wound around the bobbin 17 increases.

The regulating mechanism 27 includes a plurality of elastic members 31 provided on the outer surface of the bobbin support shaft 21. As shown in fig. 2, 3B, and 4, in this embodiment, a total of 6 elastic members 31 are provided. As shown in fig. 3A, the elastic members 31 are provided three at equal intervals in the circumferential direction at each end of the bobbin 17 in the longitudinal direction, and six in total. Each elastic member 31 is provided to be capable of abutting against the inner circumferential surface of the tube 17. Passages 32 for supplying compressed air are formed in the bobbin support shaft 21 at positions corresponding to the respective elastic members 31. Then, compressed air is supplied from a pipe 33 connected to the passage 32. In a state where the compressed air is supplied to the passage 32, the elastic members 31 are held in a state where they press the bobbin 17, and the movement of the bobbin 17 in the axial direction of the bobbin support shaft 21 is restricted. In a state where the compressed air is not supplied to the passage 32, the restriction of the movement of the bobbin 17 in the axial direction of the bobbin support shaft 21 by the elastic member 31 of the restriction mechanism 27 is released.

A lap compression portion 34 is provided between the supply guide roller 11 and the movement guide roller 12. The lap compression unit 34 compresses the lap 19 between the supply guide roller 11 and the lap 19 before the lap 19 is wound around the bobbin 17. The lap compression part 34 includes a pressing roller 35. Specifically, the lap compressing portion 34 includes a support arm 36, a pressing roller 35, and a pressing spring 37. The support arm 36 is swingably supported at the first end portion. The pressing roller 35 is rotatably supported by a second end portion of the support arm 36. The pressing spring 37 biases the pressing roller 35 toward the supply guide roller 11. The pressing roller 35 has a length greater than the width of the belt 16. The pressing roller 35 is configured to be able to press the cotton roll 19, which moves along the supply guide roller 11 together with the belt 16, against the supply guide roller 11 over the entire width.

Next, an operation of the winding device configured as described above will be described.

Before the start of winding, the empty bobbin 17 is fixed to the bobbin support shaft 21. When the bobbin 17 is fixed to the bobbin support shaft 21, the bobbin 17 is attached to the fixed position of the bobbin support shaft 21 in a state where the supply of the compressed air to the passage 32 of the bobbin support shaft 21 is stopped and the bobbin 17 is movable along the bobbin support shaft 21. Then, the compressed air is supplied to the passage 32. By supplying the compressed air to the passage 32, the elastic member 31 presses the bobbin 17 from the inside, and the bobbin 17 is held in a state in which the movement in the axial direction of the bobbin support shaft 21 is restricted.

Next, the air cylinder 25 is driven to dispose the guide roller 14 at a position indicated by a solid line in fig. 1. The bobbin 17 is arranged at a winding start position pressed by the supply guide roller 11 and the moving guide roller 12 via the belt 16. From this state, the motor 23 and the calender roll 18 are driven. The belt 16 is guided by the guide rollers 11 to 15 to move in the arrow direction of fig. 1. The supply guide roller 11 rotates counterclockwise in fig. 1. The bobbin 17 around which a part of the tape 16 is wound rotates clockwise in fig. 1 together with the bobbin support shaft 21.

The lap 19 is compressed by the calender roll 18 to remove air. The air-removed cotton roll 19 is in the following state: the belt 16, which is moved while being wound around the supply guide roller 11, moves in a state of being in contact with a surface of the belt opposite to a surface in contact with the supply guide roller 11. The lap 19 is guided between the belt 16 and the outer surface of the bobbin 17 in a state of being in contact with the outer surface of the bobbin 17. The lap 19 introduced between the belt 16 and the outer surface of the bobbin 17 is wound around the bobbin 17 in a state pressed against the outer surface of the bobbin 17 by the belt 16 in accordance with the movement of the belt 16.

As the lap diameter of the lap 19 wound around the bobbin 17 increases, the bobbin support shaft 21 moves on a bisector of a line connecting the central axis of the supply guide roller 11 and the central axis of the moving guide roller 12. The lap 19 wound around the bobbin 17 is wound in a state of being constantly pressed at the same position with respect to the supply guide roller 11 and the movement guide roller 12. The belt 16 is given an appropriate tension by the guide roller 14, and moves from the winding start position to the full bobbin position while pressing the lap 19 (lap L) wound around the bobbin 17, thereby corresponding to a change in the diameter of the lap L wound around the bobbin 17. Moreover, the extent of the lap surface not pressed by the belt 16 is minimized as in the start of winding, independently of the roll diameter of the lap L.

In the conventional winding device described in the background art with reference to fig. 10 and 11, the bobbin 72 is wound at the same position from the start of winding to the full bobbin. Therefore, the distance that the surface of the lap moves while being exposed to the air is large from the start of winding until the lap L wound around the bobbin 72 is pressed against the direction changing rollers R1 and R2 via the belt 71. Therefore, the movement distance is large in a state where the air can be sucked until the lap L compressed by the calender roll and air-removed is wound around the bobbin 72 and covered with the belt 71. The lap L is wound around the bobbin 72 in a state where the fiber density is low and the thickness is thick.

However, in this embodiment, the cotton roll 19 moves while being wound around the supply guide roller 11, enters between the belt 16 and the outer surface of the bobbin 17, and is then wound around the bobbin 17 while being pressed against the outer surface of the bobbin 17 by the belt 16. As a result, the distance that the lap 19 compressed by the calender roll 18 and air-removed is moved while being able to suck air is very small compared to the conventional device until the lap is wound around the bobbin 17 and covered with the belt 16. Therefore, the lap 19 is wound around the bobbin 17 in a state of high fiber density and thin thickness.

The bobbin 17 is rotated in the winding direction together with the bobbin support shaft 21 in a state of being pressed against the lap 19 by the belt 16 while being restricted from moving in the axial direction of the bobbin support shaft 21 via the restriction mechanism 27. Therefore, even if the bobbin 17 does not have a flange, the cotton roll 19 is wound around the bobbin 17 at an appropriate position without any trouble.

In the conventional winding device shown in fig. 10 and 11, it is necessary to receive the force of the belt 71 pressing the bobbin 72 through the support shaft of the bobbin 72 from the start of winding until the lap L wound around the bobbin 72 is pressed against the direction changing rollers R1 and R2 via the belt 71. Therefore, the support shaft of the bobbin 72 needs to be able to sufficiently bear the pressing force of the belt 71.

However, in this embodiment, the surface of the bobbin 17 from the start of winding may be pressed against the supply guide roller 11 and the moving guide roller 12 via the belt 16 or via the belt 16 and the lap 19 wound around the bobbin 17. Therefore, the bobbin support shaft 21 does not need to bear the pressing force acting on the bobbin 17 via the belt 16.

The lap 19 wound around the bobbin 17 is compressed by the lap compression portion 34 between the supply guide roller 11 and then wound around the bobbin 17. Specifically, the lap 19 is pressed against the supply guide roller 11 by a pressing roller 35 of the lap compression section 34 via the belt 16, and the pressing force is set by a pressing spring 37. Therefore, the cotton rolls 19 can be wound around the bobbin 17 with less air contained therein, as compared with the case where the cotton rolls are wound around the bobbin 17 without being compressed by the cotton roll compression portion 34. Therefore, the cotton roll 19 can be wound around the bobbin 17 with a high fiber density without increasing the pressing force of the belt 16 for winding the cotton roll 19 around the bobbin 17.

As shown in fig. 5, when winding is performed to full tube, the driving of the calender roll 18 and the motor 23 is stopped, and winding is completed. Then, the lever 24 supporting the guide roller 12 is moved to the take-up position indicated by the two-dot chain line in fig. 5, and the take-up operation is performed in a state where the guide roller 14 is moved to the take-up position P3 closer to the guide roller 15 than the full pipe position P2. After completion of the doffing, the bobbin 17 is attached to the bobbin support shaft 21, and after the guide roller 12 is moved to the winding position and the guide roller 14 is moved to the winding start position P1, the winding of the lap 19 is resumed.

According to this embodiment, the following effects can be obtained.

(1) The winding device is provided with: the winding device includes a plurality of guide rollers 11 to 15, a seamless belt 16 wound around the guide rollers 11 to 15, a bobbin 17 rotated by the belt 16, and a calender roller 18, and is configured to wind a lap 19 compressed by the calender roller 18. The winding device includes a compression unit 34, and the compression unit 34 compresses the cotton roll 19 between the supply guide roller 11 that receives the supply of the cotton roll 19 from the calender roller 18 among the plurality of guide rollers 11 to 15. The lap 19 is compressed by the lap compression portion 34 between the supply guide roller 11 and the bobbin 17, and then wound. Therefore, compared to the case where the cotton roll 19 is wound around the bobbin 17 without being compressed by the cotton roll compression portion 34, the cotton roll 19 can be wound around the bobbin 17 with less air contained in the cotton roll 19. Therefore, the cotton roll 19 can be wound around the bobbin 17 with a high fiber density without increasing the pressing force of the belt 16 for winding the cotton roll 19 around the bobbin 17.

(2) The lap compression portion 34 is a pressing roller 35 pressed against the supply guide roller 11. With this configuration, air can be discharged from the lap 19 with a simple structure in which the lap 19 is pressed by the pressing roller 35.

(3) The pressing roller 35 is disposed between the supply guide roller 11 and the movement guide roller 12. The moving guide roller 12 is movable between a winding position and a doffing position. According to this configuration, since the lap 19 can be compressed immediately before the lap 19 is wound around the bobbin 17, the widening of the width of the lap 19 when the lap 19 is wound around the bobbin 17 can be more effectively suppressed.

(4) The winding device includes a bobbin support shaft 21, a guide mechanism 26, and a control mechanism 27. The bobbin support shaft 21 fixes the bobbin 17. The guide mechanism 26 holds the bobbin support shaft 21 at a position where the bobbin 17 is pressed by the two supply guide rollers 11 and the moving guide roller 12 via the belt 16 at the start of winding, and moves the bobbin support shaft 21 so that the distance from the two supply guide rollers 11 and the moving guide roller 12 increases as the winding diameter of the lap 19 wound around the bobbin 17 increases. The limiting mechanism 27 limits the axial movement of the bobbin 17 to the bobbin support shaft 21. According to this configuration, the bobbin 17 does not have a flange, and starts to be wound from a state pressed by the two supply guide rollers 11 and the moving guide roller 12 via the belt 16. Therefore, unlike a conventional device in which a lap is wound around a bobbin having a flange via a tape, the compressed lap 19 can be prevented from entering between the tape and the flange and causing the end of the lap 19 to be stuck. Further, since the bobbin 17 has no flange, the width of the tape 16 can be widened, and quality defects due to adhesion of both ends of the lap can be prevented.

Further, the surface of the bobbin 17 from the start of winding is pressed by the supply guide roller 11 and the movement guide roller 12 via the belt 16 or via the belt 16 and the lap 19 wound around the bobbin 17. Therefore, the bobbin support shaft 21 does not need to be loaded with the pressing force acting on the bobbin 17 via the belt 16. Therefore, the strength of the bobbin support shaft 21 can be reduced as compared with the conventional winding device.

(5) The bobbin support shaft 21 is supported on one side. The bobbin support shaft 21 is not limited to one-side support, and may be two-side support. In the case of the unilateral support, the operation of attaching and detaching the bobbin 17 to and from the bobbin support shaft 21 is simplified as compared with the bilateral support.

(6) The guide mechanism 26 includes a plurality of guide shafts 28, a slider 29, and a bearing 30. Each guide shaft 28 extends in a direction orthogonal to the axial direction of the bobbin support shaft 21. The slider 29 is supported so as to be movable along the guide shaft 28. The bearing 30 is provided on the slider 29 and rotatably supports the bobbin support shaft 21. The guide mechanism 26 includes a moving mechanism (air cylinder 25). The moving mechanism (air cylinder 25) moves one guide roller 14 of the guide rollers other than the supply guide roller 11 and the moving guide roller 12 in a direction of: the tape 16 wound around the bobbin 17 supported by the bobbin support shaft 21 moves the bobbin 17 in a direction of urging force in a direction to approach the two supply guide rollers 11 and move the guide roller 12. According to this configuration, the tape 16 can be moved so as to wind the lap 19 around the bobbin 17 without hindrance, without increasing the number of guide rollers provided in the winding device.

(7) The regulating mechanism 27 includes a plurality of elastic members 31 and a passage 32. Each elastic member 31 is provided on the outer periphery of the bobbin support shaft 21. The passage 32 is formed in the bobbin support shaft 21 and can supply compressed air to a position corresponding to each elastic member 31. In addition, in a state where the compressed air is supplied to the passage 32, the elastic members 31 are held in a state where the bobbin 17 is pressed, and the movement of the bobbin 17 in the axial direction of the bobbin support shaft 21 is restricted. Therefore, in a state where the compressed air is not supplied to the passage 32, the restriction of the movement of the bobbin 17 in the axial direction of the bobbin support shaft 21 by the elastic member 31 of the restriction mechanism 27 is released, and the mounting and removal of the bobbin 17 to and from the bobbin support shaft 21 can be easily performed.

(second embodiment)

Next, a second embodiment will be described with reference to fig. 6 and 7.

The relation between the supply guide roll 11 and the calender roll 18 of the winding device of this embodiment is different from that of the first embodiment, and the other configurations are basically the same as those of the first embodiment. The same parts are denoted by the same reference numerals and detailed description is omitted.

As shown in fig. 6, the embodiment is largely different from the first embodiment in that the final calender roll 18a and the other calender rolls 18b constituting the calender rolls 18 are arranged in a state of being positioned on a substantially vertical plane, and the final calender roll 18a is pressed by the supply guide roll 11 via the belt 16 and the lap 19 with respect to the calender rolls 18. The number of the calender rolls 18b constituting the calender rolls 18 is two, and is smaller than that of the first embodiment.

As shown in fig. 7, in the calender roll 18, the final calender roll 18a is biased toward the supply guide roll 11 of the winder by a spring 20. Both rollers 18b are urged by a spring 20 so as to press the

roller

18a or 18b disposed on the lower side via the lap 19. Note that, in fig. 7, the roller 18b disposed on the upper side is not illustrated, and in fig. 6, the spring 20 is not illustrated.

In this embodiment, the final calender roll 18a, which is the final roll of the calender rolls 18, functions as the lap compression section 34. That is, the lap compression section 34 includes the final calender roll 18 a. According to this configuration, it is not necessary to provide another roll that functions as a lap compression section, and the lap 19 from which air is removed by the calender roll 18 is wound around the bobbin 17 before air is sucked. Therefore, the lap 19 can be wound around the bobbin 17 in a state where the fiber density is high.

Therefore, unlike the first embodiment, the distance that the lap 19 moves is shortened until the lap 19 subjected to the compression action by the calender roll 18 is wound around the bobbin 17 via the supply guide roll 11 and the belt 16. Therefore, the following effects can be obtained in addition to the effects similar to those described in (1) to (7) of the first embodiment.

(8) The winding device is disposed in a state where the plurality of

rolls

18a and 18b constituting the calender roll 18 are positioned on a substantially vertical plane. The final calender roll 18a is biased by a spring 20 to the supply guide roll 11 via the belt 16 and the lap 19. Both rollers 18b are urged by a spring 20 so as to press the

roller

18a or 18b disposed on the lower side via the lap 19. Therefore, the final calender roll 18a, which becomes the final calender roll, functions as a lap compressing section. Since the cotton roll 19 from which air is removed by the calender roll 18 is wound around the bobbin 17 before the air is sucked, the cotton roll 19 can be wound around the bobbin 17 in a state where the fiber density is high. Further, the distance that the lap 19 moves is shortened until the lap 19 subjected to the compression action by the final calender roll 18a of the calender rolls 18 is wound around the bobbin 17 via the supply guide roll 11 and the belt 16. Therefore, after being compressed by the calender roll 18, the lap 19 is less likely to suck air until being wound around the bobbin 17, and the spread of the lap 19 in the width direction can be further suppressed.

(third embodiment)

Next, a third embodiment will be described with reference to fig. 8.

In the winding device of this embodiment, the structure of the lap compressing portion 34 is different from that of the first embodiment, and the other structure is the same as that of the first embodiment. The same parts are denoted by the same reference numerals and detailed description is omitted.

The lap compressing section 34 includes a plurality of

rollers

41, 42, 43 and a belt 44 wound around the

rollers

41, 42, 43. The support arm 36 is swingably supported at the first end portion. The roller 42 is rotatably supported by the second end of the support arm 36. The roller 42 is urged by a pressing spring 45 so as to press the belt 44 toward the supply guide roller 11. The belt 44 is fed out from the final calender roll 18a of the calender rolls 18, and moves between the two

rolls

41 and 42 while covering one side of the cotton roll 19 that has moved to a position where the roll of the belt 16 is caught by the supply guide roll 11. Therefore, according to the configuration of this embodiment, air is less likely to enter the lap 19 until the lap 19 passes through the final calender roll 18a of the calender rolls 18 and receives the pressing force by the supply guide roll 11 and the roll 42 of the lap compression part 34.

The embodiments are not limited to the above embodiments, and may be embodied as follows, for example.

○ As shown in FIG. 9, in the winding device of the second embodiment, a pressing roller 35 for pressing the cotton roll 19 moving together with the belt 16 wound around the supply guide roller 11 is provided at a position facing the supply guide roller 11. the pressing roller 35 is provided with a pressing spring 37 extending parallel to the supply guide roller 11 and urging the rotational axis of the pressing roller 35 in a direction approaching the central axis of the supply guide roller 11. in this configuration, the cotton roll 19 compressed by the calender roller 18 is further compressed by the pressing roller 35, and air is discharged from the cotton roll 19.

○ the number of rolls constituting the calender roll 18 is not limited to three or four, and may be five or more.

○ in the configuration in which the final calender roll 18a of the calender rolls 18 is pressed against the supply guide roll 11 via the belt 16 as in the second embodiment, the plurality of

rolls

18a, 18b constituting the calender rolls 18 are not limited to the configuration in which the rotational axes thereof are located on a vertical plane.

○ the moving direction of the bobbin 17 between the winding start position and the full bobbin position is not limited to the vertical direction, and may be, for example, the horizontal direction or the oblique direction.

○ the regulating mechanism 27 may be provided on the bobbin support shaft 21 in a state of covering the opening end of the passage 32, and instead of providing the elastic member 31 for each opening end, for example, an annular groove may be formed on the outer peripheral surface of the bobbin support shaft 21 and pass through a position corresponding to the opening end of the passage 32 formed on the bobbin support shaft 21, and a rubber ring formed in an annular shape may be provided in a state of being accommodated in the annular groove, the rubber ring being held at a position recessed from the outer peripheral surface of the bobbin support shaft 21 in a state where compressed air is not supplied to the passage 32, and a part of the ring protruding from the annular groove by supplying compressed air to the passage 32 to support the bobbin 17.

○ instead of providing the elastic member 31, the regulating mechanism 27 may be a member that protrudes from the outer peripheral surface of the bobbin support shaft 21 and engages with the longitudinal end of the bobbin 17 to regulate the movement of the bobbin 17 in the axial direction.

The ○ bobbin support shaft 21 may be supported on both sides, not in a cantilevered state.

○ the winding device is not limited to the one provided with the guide mechanism 26 that moves the bobbin support shaft 21 so that the distance from the supply guide roller 11 and the movement guide roller 12 increases as the winding diameter of the lap 19 wound around the bobbin 17 increases, but may be applied to a winding device configured to rotate the bobbin support shaft 21 to which the bobbin 17 is fixed at a fixed position from the start of winding to the end of winding, as in the conventional winding device described in the background art, for example.

Claims

1. A winding device is provided with:

a plurality of guide rollers;

a seamless belt wound around the guide roller;

a bobbin rotated by the belt; and

a calender roll is arranged on the roller body,

the winding device is configured to wind the lap compressed by the calender roll,

the winding device is characterized in that,

the plurality of guide rollers includes a supply guide roller receiving a supply of the lap from the calender roller,

the bobbin is fixed to a bobbin support shaft guided by a guide mechanism that guides movement of the bobbin support shaft in a direction orthogonal to the axial direction,

the winding device includes a lap compression unit for compressing the lap between the supply guide roller and the lap winding device.

2. Winding device according to claim 1,

the lap compressing section includes a pressing roller pressed against the supply guide roller.

3. Winding device according to claim 2,

the plurality of guide rollers includes a moving guide roller movable between a winding position and a doffing position,

the pressing roller is disposed between the supply guide roller and the movement guide roller.

4. Winding device according to claim 1,

the lap compressing section includes:

a plurality of rollers, and

a belt wound around the roller and pressed against the supply guide roller.

5. Winding device according to claim 1,

the lap compression section includes a final calender roll pressed against the supply guide roll.

6. Winding device according to any one of claims 1 to 5,

the bobbin support shaft supports the bobbin so as to be rotatable integrally with the bobbin,

the winding device further includes a regulating mechanism configured to regulate axial movement of the bobbin to the bobbin support shaft.