Automatic reed wire feeding machine capable of reducing labor intensity

The automatic reed sheet feeding machine addresses manual feeding challenges by automating the process, enhancing efficiency, safety, and reducing costs through a mounting frame and extrusion rollers, improving production line stability and worker safety.

CN222175563UActive Publication Date: 2024-12-17YIJIADE AUTOMATION EQUIPMENT (TIANJIN) CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421003274.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-10
Publication Date
2024-12-17
Estimated Expiration
2034-05-10

AI Technical Summary

Technical Problem

Manual classification and feeding of reed sheets into punching machines cause operator fatigue, danger, low efficiency, unstable production, high defect rates, and recruitment challenges due to repetitive and noisy work.

Method used

An automatic reed sheet feeding machine with a mounting frame, sliding plate, extrusion rollers, and driving mechanism that automates the feeding process, reducing manual intervention.

Benefits of technology

Reduces labor intensity, enhances production efficiency, stability, and safety, while lowering noise levels and production costs, and improves the production line's utilization rate.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222175563U_ABST
    Figure CN222175563U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of automatic reed wire feeding machines, in particular to an automatic reed wire feeding machine capable of reducing labor intensity. The device comprises a mounting frame, a large plate is fixedly connected to the left end of the mounting frame, a hole is formed in the front face of the large plate, hole baffles are detachably connected to the two sides of the large plate, a sliding plate is slidably connected between the two hole baffles, and the sliding plate slides in the hole of the large plate. The problems that due to the fact that reed wires are manually classified and fed into a punching machine, manual fatigue is caused, an operator is prone to danger when working highly for a long time, efficiency is not high, a designated production line task cannot be completed regularly on time, the number of personnel condition influencing factors is large, emotion fluctuation is large, and the working efficiency is low are solved. The problems of difficulty in management during working, high working intensity, fatigue of people caused by long-time production operation, low efficiency, poor stability of working industry and production process and unstable production efficiency exist in the prior art.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of an automatic reed sheet feeding machine, in particular to an automatic reed sheet feeding machine which can reduce labor intensity. Background Art

[0002] Before the invention of the automatic reed sheet feeding machine, the operator was required to classify the reed sheets of different thicknesses, and then feed the reed sheets into the punching machine, ensuring that the reed sheets were at a thickness of 0.2 and a tolerance within 0.01. Finally, the reed sheets were taken out of the punching machine process, and the reed sheets were classified again to ensure that one side was facing up and the other side was facing down for the next process.

[0003] In the prior art, manual sorting of reed pieces feeds the punching machine, which causes manual fatigue. The operator is prone to danger when working for a long time at a high altitude, and the efficiency is low. It is impossible to complete the designated production line tasks on time and regularly. There are many factors affecting the personnel status, and the mood fluctuates greatly. There are difficulties in management at work, the work intensity is high, and long-term production operations can easily make people tired and inefficient. The production line utilization rate is insufficient, the work is hard, the production process is poorly stable, the production efficiency is unstable, and the defective product rate remains high. At the same time, the operation of the machine is repetitive and monotonous, which makes the personnel easily bored and distracted, causing major safety hazards to personnel and equipment, and the comprehensive energy consumption and production costs are high. High noise is harmful to human health, workers are unwilling to do it, and there is a problem of difficulty in recruiting workers. Utility Model Content

[0004] The purpose of the utility model is to solve the problems of manual classification of reed sheets into feeding punching machines in actual use, causing manual fatigue, operators' long-term high-pressure work is prone to danger, low efficiency, and failure to complete designated production line tasks on time and regularly. There are many factors affecting personnel conditions, large mood swings, difficulties in management at work, high work intensity, long-term production operations easily make people tired, inefficient, insufficient production line utilization rate, work, poor production process stability, unstable production efficiency, high defective product rate, and repetitive and monotonous mechanical operations, which make personnel easily bored and distracted, causing major safety hazards to personnel and equipment, high comprehensive energy consumption and production costs, high noise levels that are harmful to human health, and workers are unwilling to do it. There is a problem of difficulty in recruiting workers. An automatic reed sheet feeding machine that reduces labor intensity is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic reed sheet feeding machine with reduced labor intensity, comprising an installation frame, a large plate is fixedly connected to the left end of the installation frame, a hole is opened on the front of the large plate, hole baffles are detachably connected on both sides of the large plate, a sliding plate is slidably connected between the two hole baffles, the sliding plate slides in the hole of the large plate, a plurality of evenly distributed fixed rollers are rotatably connected to the back of the large plate, an extrusion roller is rotatably connected to the back of the sliding plate, fixed silo blocks are fixedly connected to the top two sides of the installation frame, a silo front plate is fixedly connected to the top of the fixed silo block, a fork is arranged between the two fixed silo blocks, a step groove is opened on the upper end of the fork, and the depth of the step groove is 0.2mm.

[0006] The effect achieved by the above components is: when the reed piece is fed into the punching machine, the mounting frame is installed on the punching machine, and the reed piece is placed into the silo front plate on the fixed silo block, so that the reed piece is placed in the stepped groove on the fork, and the fork is pushed forward 30mm through the driving mechanism. At the same time, the holes on the large plate drive the sliding plate upward 3mm, and the two extrusion rollers fixed on the sliding plate are also upward 3mm, so that the reed piece on the fork is lifted up by the extrusion roller, and then clamped with the fixed roller on the large plate, and then the fixed roller rotates to feed the reed piece into the punching machine to achieve the feeding purpose, and then the fork and the extrusion rollers on the sliding plate are reset to prepare for the next push, and this reciprocating process is repeated to achieve the feeding purpose.

[0007] Preferably, a mounting plate is fixedly connected to the inner wall of the mounting frame, a reducer is installed at the bottom of the mounting plate, a motor is installed at the right end of the reducer, the output end of the motor is fixed to the reducer, the motor drives the reducer to rotate, a coupling 1 is provided at the upper end of the reducer, the coupling 1 is fixed to the reducer, and a coupling 2 is provided at the left end of the reducer, the coupling 2 is fixed to the reducer.

[0008] The effects achieved by the above components are: starting the motor causes the reducer on the mounting plate to rotate, thereby causing coupling 1 and coupling 2 to rotate.

[0009] Preferably, one end of the second coupling is fixedly connected to a rotating shaft, the rotating shaft passes through the large plate, the rotating shaft is rotatably connected to the large plate, the arc surface of the rotating shaft is fixedly connected to a rolling cam and a synchronous wheel, and the rolling cam and the rolling cam are located on both sides of the large plate.

[0010] The effects achieved by the above components are: the second coupling rotates, causing the rotating shaft to rotate, thereby causing the synchronous wheel and the rolling cam to rotate.

[0011] Preferably, the back of the sliding plate is rotatably connected to an auxiliary wheel, and one side of the large plate close to the rolling cam is fixedly connected to a fixed column.

[0012] The effect achieved by the above components is: the rolling cam causes the squeezing auxiliary wheel to move up, thereby moving the sliding plate up.

[0013] Preferably, one end of the fixed column one is detachably connected to a pillar one for a tension spring, hooks are provided at both ends of the pillar one for a tension spring, a spring is fixedly connected between the two hooks, a fixed column two is fixedly connected to the side of the sliding plate close to the auxiliary wheel one, the hooks at both ends of the pillar one for a tension spring hook the fixed column one and the fixed column two, one side of the large plate is rotatably connected to a plurality of identical small synchronous wheels, a belt is provided between the small synchronous wheels and the synchronous wheels, one side of the large plate is detachably connected to a skateboard, the skateboard is rotatably connected to the small synchronous wheel, and the small synchronous wheel is fixed to the fixed roller.

[0014] The effects achieved by the above components are: by setting fixed column 1 and fixed column 2 and support column 1 for tension spring, the sliding plate is assisted to reset, the synchronous wheel rotates, and the small synchronous wheel rotates through the belt, thereby rotating the fixed roller.

[0015] Preferably, the upper end of the mounting frame is fixedly connected with a linear guide rail and a fixed column three, the surface of the linear guide rail is slidably connected with a follower support plate, the right end of the fork is fixedly connected with a bottom support plate, and the follower support plate and the bottom support plate are fixed.

[0016] The effect achieved by the above components is that the bottom support plate is squeezed, and acts on the linear guide rail and the follower support plate, so that the fork is squeezed and moved.

[0017] Preferably, the upper end of the bottom supporting plate is detachably connected to an auxiliary plate, and the lower end of the auxiliary plate is rotatably connected to an auxiliary wheel 2.

[0018] The effects achieved by the above components are as follows: the auxiliary wheel 2 is squeezed, so that the auxiliary plate is squeezed, and thus the bottom plate is squeezed.

[0019] Preferably, a feeding cam is provided at the upper end of the mounting frame, the feeding cam is fixed to coupling 1, one end of the fixing column 3 is detachably connected to support 2 for a tension spring, and the other end of support 2 for a tension spring is fixed to the feeding cam.

[0020] The effects achieved by the above components are: the coupling 1 rotates to rotate the feeding cam, thereby squeezing the auxiliary wheel 2, and the feeding cam is reset by setting the tension spring support 2 and the fixing column 3.

[0021] In summary, the beneficial effects of the utility model are:

[0022] In the utility model, when the reed piece is fed into the punching machine, the mounting frame is mounted on the punching machine, and the reed piece is placed into the silo front plate on the fixed silo block, so that the reed piece is placed into the stepped groove on the fork, and the fork is pushed forward 30mm through the driving mechanism, and at the same time, the hole baffles on the large plate drive the sliding plate upward 3mm, and the two extrusion rollers fixed on the sliding plate are also upward 3mm, so that the reed piece on the fork is lifted up by the extrusion roller, and then the reed piece is clamped with the fixed roller on the large plate, and then the fixed roller rotates to feed the reed piece into the punching machine to achieve the purpose of feeding, and then the fork and the extrusion rollers on the sliding plate are reset to prepare for the next push, and the reciprocating method is used to achieve the purpose of feeding, thereby solving the problem of manual classification. The reed feeding punching machine causes manual fatigue, and the operator is prone to danger when working for a long time at a high altitude. The efficiency is low, and the designated production line tasks cannot be completed on time and regularly. There are many factors affecting the personnel status, and the mood fluctuates greatly. There are difficulties in management at work, the work intensity is high, and long-term production operations can easily make people tired and inefficient. The production line utilization rate is insufficient, the work is hard, the production process is unstable, the production efficiency is unstable, and the defective product rate remains high. At the same time, the operation of the machine is repetitive and monotonous, which makes the personnel easily bored and distracted, causing major safety hazards to personnel and equipment, and the comprehensive energy consumption and production costs are high. High noise is harmful to human health, workers are unwilling to do it, and there is a problem of difficulty in recruiting workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the utility model from another angle;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the fork of the utility model;

[0026] Figure 4 It is a three-dimensional structural schematic diagram of the bottom of the utility model.

[0027] Legend: 1. Mounting frame; 2. Fork; 3. Bottom plate; 4. Silo front plate; 5. Fixed silo block; 6. Linear guide; 7. Follower support plate; 8. Auxiliary plate; 9. Feed cam; 10. Large plate; 11. Sliding plate; 12. Auxiliary wheel 2; 13. Slide plate; 14. Baffle plate for hole; 15. Small synchronous wheel; 16. Synchronous wheel; 17. Step groove; 18. Mounting plate; 19. Motor; 20. Coupling 1; 21. Coupling 2; 22. Extrusion roller; 23. Rotating shaft; 24. Rolling cam; 25. Auxiliary wheel 1; 26. Fixed column 1; 27. Pillar 1 for tension spring; 28. Fixed column 2; 29. ​​Fixed column 3; 30. Pillar 2 for tension spring; 31. Fixed roller; 32. Reducer; 33. Belt. DETAILED DESCRIPTION

[0028] Reference Figure 1 and Figure 4 As shown, the utility model provides a technical solution: an automatic reed sheet feeding machine with reduced labor intensity includes a mounting frame 1, a large plate 10 is fixedly connected to the left end of the mounting frame 1, a hole is opened on the front of the large plate 10, hole baffles 14 are detachably connected to both sides of the large plate 10, a sliding plate 11 is slidably connected between the two hole baffles 14, the sliding plate 11 slides in the hole of the large plate 10, a plurality of evenly distributed fixed rollers 31 are rotatably connected to the back of the large plate 10, an extrusion roller 22 is rotatably connected to the back of the sliding plate 11, fixed silo blocks 5 are fixedly connected to the top of the mounting frame 1, a silo front plate 4 is fixedly connected to the top of the fixed silo block 5, a fork 2 is arranged between the two fixed silo blocks 5, a stepped groove 17 is opened on the upper end of the fork 2, and the depth of the stepped groove 17 It is 0.2mm. When the reed piece is fed into the punching machine, the mounting frame 1 is installed on the punching machine, and the reed piece is placed into the silo front plate 4 on the fixed silo block 5, so that the reed piece is placed in the stepped groove 17 on the fork 2. The fork 2 is pushed forward 30mm through the driving mechanism. At the same time, the holes on the large plate 10 drive the sliding plate 11 upward by 3mm, and the two extrusion rollers 22 fixed on the sliding plate 11 are also upward by 3mm, so that the reed piece on the fork 2 is lifted by the extrusion roller 22, and then clamped with the fixed roller 31 on the large plate 10, and then the fixed roller 31 rotates to feed the reed piece into the punching machine to achieve the feeding purpose, and then the fork 2 and the extrusion roller 22 on the sliding plate 11 are reset to prepare for the next push, and this reciprocating cycle is used to achieve the feeding purpose.

[0029] Reference Figure 1 and Figure 4As shown, in this embodiment: the inner wall of the mounting frame 1 is fixedly connected with a mounting plate 18, a reducer 32 is installed at the bottom of the mounting plate 18, a motor 19 is installed at the right end of the reducer 32, the output end of the motor 19 is fixed to the reducer 32, the motor 19 drives the reducer 32 to rotate, a coupling 1 20 is arranged at the upper end of the reducer 32, the coupling 1 20 is fixed to the reducer 32, a coupling 21 is arranged at the left end of the reducer 32, the coupling 21 is fixed to the reducer 32, the motor 19 is started, the reducer 32 on the mounting plate 18 is rotated, so that the coupling 1 20 and the coupling 21 are rotated, and the coupling 21 is rotated. One end of the shaft 21 is fixedly connected with a rotating shaft 23, which passes through the large plate 10 and is rotatably connected to the large plate 10. The arc surface of the rotating shaft 23 is fixedly connected with a rolling cam 24 and a synchronous wheel 16. The rolling cam 24 and the rolling cam 24 are located on both sides of the large plate 10. The coupling 21 rotates to rotate the rotating shaft 23, thereby rotating the synchronous wheel 16 and the rolling cam 24. The back of the sliding plate 11 is rotatably connected with an auxiliary wheel 25, and a fixed column 26 is fixedly connected to the side of the large plate 10 close to the rolling cam 24. The rolling cam 24 squeezes the auxiliary wheel 25 upward, thereby moving the sliding plate 11 upward.

[0030] Reference Figure 2 and Figure 4As shown, in this embodiment: one end of the fixed column 26 is detachably connected to a support column 27 for a tension spring, and hooks are provided at both ends of the support column 27 for the tension spring, and a spring is fixedly connected between the two hooks. A fixed column 28 is fixedly connected to the side of the sliding plate 11 close to the auxiliary wheel 25, and the hooks at both ends of the support column 27 for the tension spring hook the fixed column 26 and the fixed column 28. One side of the large plate 10 is rotatably connected to a plurality of identical small synchronous wheels 15, and a belt 33 is provided between the small synchronous wheels 15 and the synchronous wheels 16. A slide plate 13 is detachably connected to one side of the large plate 10, and the slide plate 13 is rotatably connected to the small synchronous wheels 15, and the small synchronous wheels 15 are fixed to the fixed roller 31. By providing the fixed column 26 and the fixed column 28 and the support column 27 for the tension spring, the auxiliary sliding plate 11 is reset, the synchronous wheel 16 rotates, and the small synchronous wheel 15 rotates through the belt 33, thereby rotating the fixed roller 31, and the upper end of the mounting frame 1 is fixed. A linear guide 6 and a fixed column three 29 are connected, and a follower support plate 7 is slidably connected to the surface of the linear guide 6. The right end of the fork 2 is fixedly connected to the bottom support plate 3. The follower support plate 7 and the bottom support plate 3 are fixed, and the bottom support plate 3 is squeezed. Under the action of the linear guide 6 and the follower support plate 7, the fork 2 is squeezed and moved. The upper end of the bottom support plate 3 is detachably connected to an auxiliary plate 8, and the lower end of the auxiliary plate 8 is rotatably connected to an auxiliary wheel two 12. The auxiliary wheel two 12 is squeezed, so that the auxiliary plate 8 is squeezed, thereby the bottom support plate 3 is squeezed. A feeding cam 9 is provided at the upper end of the mounting frame 1. The feeding cam 9 is fixed to a coupling one 20. One end of the fixed column three 29 is detachably connected to a tension spring support two 30, and the other end of the tension spring support two 30 is fixed to the feeding cam 9. The coupling one 20 rotates, so that the feeding cam 9 rotates, thereby squeezing the auxiliary wheel two 12. The feeding cam 9 is reset by setting the tension spring support two 30 and the fixed column three 29.

[0031] Working principle:

[0032] When the reed pieces are fed into the punching machine, 300 reed pieces are placed in a group into the silo front plate 4 on the fixed silo block 5, so that the reed pieces fall into the stepped groove 17 on the fork 2 under gravity, and the button on the mounting frame 1 is pressed to start the motor 19, so as to drive the reducer 32 on the mounting plate 18, so that the coupling 1 20 and the coupling 2 21 rotate. The coupling 1 20 rotates, so that the feeding cam 9 rotates, thereby squeezing the auxiliary wheel 2 12. The auxiliary wheel 2 12 is squeezed, so that the auxiliary plate 8 is squeezed, so that the bottom plate 3 is squeezed, and the bottom plate 3 is squeezed. The linear guide 6 and the follower support plate 7 act to squeeze and move the fork 2, so that the fork 2 is pushed forward 30mm, so that the buckle piece follows and moves, and at the same time, the coupling 2 21 rotates, so that the rotating shaft 23 rotates, so that the synchronous wheel 16 and the rolling cam 24 rotate, and the rolling cam 24 squeezes the auxiliary wheel 1 25 to move up, so that the sliding plate 11 moves up, and the large The holes on the plate 10 are used to drive the sliding plate 11 upward by 3 mm, and the two extrusion rollers 22 fixed on the sliding plate 11 are also upward by 3 mm, so that the reed on the fork 2 is lifted by the extrusion roller 22, and then the reed is clamped with the fixed roller 31 on the large plate 10, and then the synchronous wheel 16 rotates, and the small synchronous wheel 15 rotates through the belt 33, so that the fixed roller 31 rotates, and the fixed roller 31 rotates, and the reed is sent to the feed port of the punching machine, and then punching is carried out to achieve the feeding purpose, and then the fork 2 and the extrusion roller 22 on the sliding plate 11 are reset to prepare for the next push, and the feeding purpose is achieved in this reciprocating manner. By setting the tension spring support 2 30 and the fixed column 3 29, the feeding cam 9 is reset, and by setting the fixed column 1 26 and the fixed column 28 and the tension spring support 1 27, the sliding plate 11 is assisted in resetting, and the belt 33 is adjusted by adjusting the position of the slide plate 13.

[0033] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. An automatic reed sheet feeding machine with reduced labor intensity, comprising a mounting frame (1), Features: The left end of the installation frame (1) is fixedly connected to a large plate (10), a hole is provided on the front of the large plate (10), and hole baffles (14) are detachably connected to the two sides of the large plate (10), a sliding plate (11) is slidably connected between the two hole baffles (14), and the sliding plate (11) slides in the hole of the large plate (10), the back of the large plate (10) is rotatably connected to a plurality of evenly distributed fixed rollers (31), and the back of the sliding plate (11) is rotatably connected to an extrusion roller (22), the top two sides of the installation frame (1) are fixedly connected to fixed silo blocks (5), the top of the fixed silo block (5) is fixedly connected to a silo front plate (4), a fork (2) is arranged between the two fixed silo blocks (5), and the upper end of the fork (2) is provided with a stepped groove (17), and the depth of the stepped groove (17) is 0.2 mm.

2. The automatic reed sheet feeding machine with reduced labor intensity according to claim 1, Features: The inner wall of the mounting frame (1) is fixedly connected with a mounting plate (18), a reducer (32) is installed at the bottom of the mounting plate (18), a motor (19) is installed at the right end of the reducer (32), an output end of the motor (19) is fixed to the reducer (32), the motor (19) drives the reducer (32) to rotate, a coupling 1 (20) is arranged at the upper end of the reducer (32), the coupling 1 (20) is fixed to the reducer (32), and a coupling 2 (21) is arranged at the left end of the reducer (32), the coupling 2 (21) is fixed to the reducer (32).

3. The automatic reed sheet feeding machine with reduced labor intensity according to claim 2, Features: One end of the second coupling (21) is fixedly connected with a rotating shaft (23), the rotating shaft (23) passes through the large plate (10), the rotating shaft (23) is rotatably connected to the large plate (10), the arc surface of the rotating shaft (23) is fixedly connected with a rolling cam (24) and a synchronous wheel (16), and the rolling cam (24) and the rolling cam (24) are located on both sides of the large plate (10).

4. The automatic reed sheet feeding machine with reduced labor intensity according to claim 3, Features: The back of the sliding plate (11) is rotatably connected to an auxiliary wheel (25), and one side of the large plate (10) close to the rolling cam (24) is fixedly connected to a fixed column (26).

5. The automatic reed sheet feeding machine with reduced labor intensity according to claim 4, Features: One end of the fixed column (26) is detachably connected to a support column (27) for a tension spring, hooks are provided at both ends of the support column (27) for a tension spring, and a spring is fixedly connected between the two hooks. A side of the sliding plate (11) close to the auxiliary wheel (25) is fixedly connected to a fixed column (28), and the hooks at both ends of the support column (27) for a tension spring hook the fixed column (26) and the fixed column (28). One side of the large plate (10) is rotatably connected to a plurality of identical small synchronous wheels (15), and a belt (33) is provided between the small synchronous wheels (15) and the synchronous wheels (16). One side of the large plate (10) is detachably connected to a slide plate (13), and the slide plate (13) and the small synchronous wheel (15) are rotatably connected, and the small synchronous wheel (15) and the fixed roller (31) are fixed.

6. The automatic reed sheet feeding machine with reduced labor intensity according to claim 5, Features: The upper end of the installation frame (1) is fixedly connected to a linear guide rail (6) and a fixed column three (29); the surface of the linear guide rail (6) is slidably connected to a follower support plate (7); the right end of the fork (2) is fixedly connected to a support plate (3); and the follower support plate (7) and the support plate (3) are fixed.

7. The automatic reed sheet feeding machine with reduced labor intensity according to claim 6, Features: The upper end of the bottom support plate (3) is detachably connected to an auxiliary plate (8), and the lower end of the auxiliary plate (8) is rotatably connected to an auxiliary wheel 2 (12).

8. The automatic reed sheet feeding machine with reduced labor intensity according to claim 7, Features: A feeding cam (9) is arranged at the upper end of the installation frame (1), and the feeding cam (9) is fixed to a coupling 1 (20). One end of the fixing column 3 (29) is detachably connected to a tension spring support 2 (30), and the other end of the tension spring support 2 (30) is fixed to the feeding cam (9).