Automatic lining adding device and belt loop machine

Abstract

The utility model provides an automatic lining adding device and a belt loop machine, and belongs to the technical field of sewing equipment. The automatic lining adding device comprises a rack, a lining strip conveying mechanism used for conveying lining strips and a lining feeding component are arranged on the rack, the lining feeding component comprises a mounting block and a driving part for driving the mounting block to move transversely, the driving part is mounted on the rack, and a pressing plate capable of moving up and down is arranged above the mounting block. A cutter mechanism used for cutting off the lining strips is further arranged on the machine frame. The automatic lining adding device can be matched with the belt loop machine for automatic lining adding, the working efficiency is well improved, the production takt of an original belt loop machine is not affected when the automatic lining adding device works, the production efficiency of the original belt loop machine is not affected, the number of cycles can be selected at will, and lining cloth can be added at any position within the number of cycles.

Description

Technical Field

[0001] This utility model belongs to the field of sewing equipment technology, and relates to an automatic lining device and a trouser loop machine. Background Technology

[0002] In the process of sewing trousers, a trouser loop machine is often used to sew loops. One end of the loop is sewn to the edge of the waistband, and the other end is sewn to the trouser body, secured using a bar stitch. For information on the structure and working principle of the trouser loop machine, please refer to an automatic trouser loop machine provided in application number 202011365587.8.

[0003] Since a pair of pants typically has five loops, and the loops are located in different positions on the sides of the pants, some areas have more layers of fabric and are not affected, while others have fewer layers of fabric and are thinner, which can easily lead to problems such as denser stitching and fabric damage. In these cases, a small piece of lining fabric needs to be added under the bottom fabric in these areas to solve the problem.

[0004] For manual operations, the lining is usually inserted manually, then the trousers are placed on top of the lining, and then the trouser loops are folded onto the trousers before sewing. This method is relatively inefficient.

[0005] Current trouser hook sewing machines lack an automatic lining-adding function. When operating the machine, the operator covers the entire trouser with the sewing table, completes one trouser hook, and then rotates the waistband to start the next sewing. Therefore, with external lining feeding, the operator needs to wait after completing one sewing and removing the trouser. However, the trouser hook machine only takes a few seconds to complete one trouser hook. If adding lining requires waiting, it will greatly reduce work efficiency and pose a risk of injury. Summary of the Invention

[0006] This utility model addresses the aforementioned problems in the existing technology by providing an automatic lining device. The technical problem to be solved by this utility model is: how to automatically add lining fabric.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] An automatic lining device includes a frame, characterized in that the frame is provided with a lining strip conveying mechanism and a lining feeding component for conveying lining strips, the lining feeding component includes a mounting block and a driving component for driving the mounting block to move laterally, the driving component is mounted on the frame, a pressure plate that can move up and down is provided above the mounting block, and a cutting mechanism for cutting the lining strips is also provided on the frame.

[0009] Its working principle is as follows: This automatic lining device is installed on the trouser loop machine. During operation, the lining strip conveying mechanism transports the lining to position one, then the cutting mechanism cuts the lining. After that, the lining strip conveying mechanism sends the cut lining to position two. After the trouser loop machine start button is pressed, during the process of the trouser loop machine sending the trouser loop to the sewing table, the pressure plate presses the lining onto the machine head cover. Then, the drive component drives the mounting block to move, and the pressure plate on the mounting block transports the lining at position two to position three (the sewing position). The lining, trouser loop, and fabric piece are sewn together.

[0010] This automatic lining device can work with a trouser looper to automatically add lining, greatly improving work efficiency. The device does not affect the production rhythm of the original trouser looper and will not affect its production efficiency. It also allows for the selection of the number of cycles and the addition of lining at any position within the cycle.

[0011] In the aforementioned automatic lining device, a clamping cylinder is provided on the mounting block, and the piston rod of the clamping cylinder can extend from above the mounting block. The pressure plate is mounted on the piston rod of the clamping cylinder.

[0012] The pressing cylinder moves the pressing plate up and down through the extension and retraction of the piston rod. After the piston rod moves the pressing plate down, the pressing plate presses the lining cloth onto the machine head cover.

[0013] In the aforementioned automatic lining device, the driving component includes a transverse cylinder, and the mounting block is mounted on the piston rod of the transverse cylinder.

[0014] In this structure, a transverse cylinder drives the mounting block to move laterally, causing the pressure plate on the mounting block to transport the lining to the designated position.

[0015] In the aforementioned automatic lining device, the driving component includes a hydraulic cylinder or a linear motor, and the mounting block is mounted on the piston rod of the hydraulic cylinder or the output shaft of the linear motor.

[0016] In the aforementioned automatic lining device, the lining strip conveying mechanism includes a motor, a first rotatable roller, a driving roller, and a driven roller. The driven roller abuts against the driving roller. The first roller is located in front of the driving roller. The motor is mounted on a frame. A first pulley is mounted on the output shaft of the motor. A second pulley is mounted on the end of the driving roller. A third pulley is mounted on the end of the first roller. A rotatable idler pulley is mounted on the frame. A synchronous belt connects the first, second, third, and idler pulleys. The first, third, and idler pulleys are located inside the synchronous belt, and the second pulley is located outside the synchronous belt.

[0017] After this automatic lining device is installed on the trouser looper, roller one is located above the machine head cover and abuts against the machine head cover. In this structure, the motor drives roller one and the drive wheel to rotate simultaneously through a synchronous belt, idler pulley and three pulleys.

[0018] The working steps are as follows:

[0019] S1. The driving wheel and the driven wheel clamp the lining and convey it to a position, while the first roller presses the lining onto the machine head cover;

[0020] S2. The cutting mechanism cuts the lining fabric;

[0021] S3. The rotating roller one delivers the cut lining to position two, while the next piece of lining is delivered to position one and pressed down by the roller one.

[0022] S4. After the start button of the trouser hook machine is pressed, during the process of the trouser hook machine sending the trouser hook to the sewing table, the pressure plate 6 presses the lining 30 onto the machine head cover 29. Then the drive component 5 drives the mounting block 4 to move. The pressure plate 6 on the mounting block 4 will transport the lining at position two to position three (sewing position). The lining, trouser hook, and fabric piece are sewn together.

[0023] S5. During the sewing process, the lining device automatically repeats steps S1-S4, waiting for the next start signal.

[0024] In the aforementioned automatic lining device, a pressure plate that can move up and down is installed on the frame, a mounting base is fixed on the pressure plate, the driven wheel is rotatably mounted on the mounting base, a screw is threaded onto the pressure plate, and a spring is sleeved on the screw. The spring is in a compressed state and causes the driven wheel to abut against the driving wheel.

[0025] The compressed spring presses the pressure plate downwards, causing the driven wheel on the mounting base to abut against the driving wheel. The driven wheel is elastically pressed against the driving wheel by the spring. Therefore, when the thickness of the lining changes (such as when a joint appears), the spring will extend or retract accordingly, preventing the lining from getting stuck and ensuring the normal operation of the automatic lining device, thus greatly improving adaptability.

[0026] The structure also allows for adjustment of the compression of spring one via screws, thereby regulating the pressure exerted by the driven wheel on the driving wheel.

[0027] In the aforementioned automatic lining device, the cutting mechanism includes a moving blade, a fixed blade, and a vertically arranged cutting cylinder. The fixed blade is mounted on the frame, and the bottom of the cutting cylinder is hinged to the frame. A connecting block is hinged to the piston rod of the cutting cylinder, and a cutting shaft is fixed on the connecting block. The cutting shaft is rotatably mounted on the frame, and the moving blade is mounted on the cutting shaft. The moving blade and the fixed blade can mesh with each other.

[0028] When the piston rod of the cutter cylinder extends, it drives the connecting block to swing. The connecting block drives the cutter shaft to swing. When the cutter shaft drives the moving blade to rotate and meshes with the fixed blade, the cutting of the lining fabric is completed.

[0029] In the aforementioned automatic lining device, a spring block is installed on the cutter shaft, and a second spring in a compressed state is sleeved on the cutter shaft. One end of the second spring abuts against the frame, and the other end of the second spring abuts against the spring block.

[0030] The elastic force of spring two exerts a force on the moving blade, pressing the fixed blade and the moving blade together. When the moving blade rotates to the position of the fixed blade, the two blades engage. By adjusting the position of the spring block, the magnitude of the elastic force of spring two can be adjusted, thereby adjusting the degree of clamping between the moving and fixed blades.

[0031] This utility model also provides a trouser loop machine, which includes any of the above-mentioned automatic lining devices.

[0032] Compared with the prior art, the advantages of this utility model are as follows:

[0033] 1. This automatic lining device can work with a trouser loop machine to automatically add lining, which greatly improves work efficiency. When the automatic lining device is working, it does not affect the production rhythm of the original trouser loop machine and will not affect the production efficiency of the original trouser loop machine. Moreover, the number of cycles can be selected at will, and the lining can be added at any position within the number of cycles.

[0034] 2. The driven wheel of this automatic lining device is elastically pressed onto the driving wheel by a spring. When the thickness of the lining changes, the spring will extend or retract accordingly, so that the lining will not get stuck, ensuring the normal operation of the lining device and greatly improving its adaptability. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the automatic lining device;

[0036] Figure 2 This is a structural schematic diagram of the lining feeding component;

[0037] Figure 3 This is a schematic diagram of the cutting mechanism.

[0038] In the diagram: 1. Frame, 2. Liner conveying mechanism, 3. Liner feeding component, 4. Mounting block, 5. Drive component, 6. Pressure plate, 7. Cutting mechanism, 8. Pressing cylinder, 9. Horizontal cylinder, 10. Motor, 11. Roller 1, 12. Drive wheel, 13. Driven wheel, 14. Pulley 1, 15. Pulley 2, 16. Pulley 3, 17. Idler wheel, 18. Pressure plate, 19. Mounting base, 20. Screw, 21. Spring 1, 22. Moving blade, 23. Fixed blade, 24. Cutting cylinder, 25. Connecting block, 26. Cutting shaft, 27. Elastic block, 28. Spring 2, 29. Machine head cover, 30. Liner, 31. Synchronous belt. Detailed Implementation

[0039] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0040] like Figure 1-2 As shown, this automatic lining device includes a frame 1, on which a lining strip conveying mechanism 2 and a lining feeding component 3 are provided. The lining feeding component 3 includes a mounting block 4 and a driving component 5 for driving the mounting block 4 to move laterally. The driving component 5 is mounted on the frame 1. A pressure plate 6 that can move up and down is provided above the mounting block 4. A cutting mechanism 7 for cutting the lining fabric 30 is also provided on the frame 1.

[0041] This automatic lining device is installed on the trouser loop machine. During operation, the lining strip conveying mechanism 2 conveys the lining fabric 30 to position one. Then, the cutting mechanism 7 cuts the lining fabric 30. After that, the lining strip conveying mechanism 2 sends the cut lining fabric 30 to position two. After the trouser loop machine start button is pressed, during the process of the trouser loop machine sending the trouser loop to the sewing table, the pressure plate 6 presses the lining fabric 30 onto the machine head cover 29. Then, the drive component 5 drives the mounting block 4 to move. The pressure plate 6 on the mounting block 4 conveys the lining fabric 30 at position two to position three (sewing position). The lining fabric 30 is sewn together with the trouser loop and the fabric piece.

[0042] like Figure 2 As shown, in this embodiment, a clamping cylinder 8 is provided on the mounting block 4, and the piston rod of the clamping cylinder 8 can extend from the top of the mounting block 4. A pressure plate 6 is installed on the piston rod of the clamping cylinder 8.

[0043] The pressing cylinder 8 drives the pressing plate 6 to move up and down through the extension and retraction of the piston rod. After the piston rod drives the pressing plate 6 to move downward, the pressing plate 6 presses the lining cloth 30 onto the machine head cover 29.

[0044] like Figure 2 As shown, in this embodiment, the driving component 5 includes a transverse cylinder 9, and the mounting block 4 is mounted on the piston rod of the transverse cylinder 9.

[0045] In this structure, the transverse cylinder 9 drives the mounting block 4 to move laterally, so that the pressure plate 6 on the mounting block 4 conveys the lining 30 to the designated position.

[0046] In other embodiments, the drive unit 5 includes a hydraulic cylinder or a linear motor 10, with the mounting block 4 mounted on the piston rod of the hydraulic cylinder or the output shaft of the linear motor 10.

[0047] like Figure 1 As shown, in this embodiment, the lining conveying mechanism 2 includes a motor 10, a first roller 11 that can rotate, a driving wheel 12, and a driven wheel 13. The driven wheel 13 abuts against the driving wheel 12. The first roller 11 is located in front of the driving wheel 12. The motor 10 is mounted on the frame 1. A first pulley 14 is mounted on the output shaft of the motor 10. A second pulley 15 is mounted on the end of the driving wheel 12. A third pulley 16 is mounted on the end of the first roller 11. A rotatable idler wheel 17 is mounted on the frame 1. A synchronous belt 31 is connected to the first pulley 14, the second pulley 15, the third pulley 16, and the idler wheel 17. The first pulley 14, the third pulley 16, and the idler wheel 17 are located inside the synchronous belt 31, and the second pulley 15 is located outside the synchronous belt 31.

[0048] After the automatic lining device is installed on the trouser loop machine, the roller 11 is located above the machine head cover 29 and abuts against the machine head cover 29. In this structure, the motor 10 drives the roller 11 and the drive wheel 12 to rotate simultaneously through the synchronous belt 31, the idler pulley 17 and the three pulleys.

[0049] The working steps are as follows:

[0050] S1. The driving wheel 12 and the driven wheel 13 clamp the lining cloth 30 and transport it to a position, while the roller 11 presses the lining cloth 30 onto the machine head cover 29.

[0051] S2. The cutting mechanism 7 cuts the lining fabric 30;

[0052] S3. The rotating roller 11 delivers the cut lining fabric 30 to position two, while the next piece of lining fabric 30 is delivered to position one and pressed down by the roller 11.

[0053] S4. After the start button of the trouser hook machine is pressed, during the process of the trouser hook machine sending the trouser hook to the sewing table, the pressure plate 6 presses the lining 30 onto the machine head cover 29. Then the drive component 5 drives the mounting block 4 to move. The pressure plate 6 on the mounting block 4 will transport the lining 30 at position two to position three (sewing position). The lining 30, the trouser hook, and the fabric piece are sewn together.

[0054] S5. During the sewing process, the lining device automatically repeats steps S1-S4, waiting for the next start signal.

[0055] like Figure 1As shown, in this embodiment, a pressure plate 18 that can move up and down is installed on the frame 1, and a mounting base 19 is fixed on the pressure plate 18. The driven wheel 13 is rotatably installed on the mounting base 19. A screw 20 is threadedly connected to the pressure plate 18, and a spring 21 is sleeved on the screw 20. The spring 21 is in a compressed state and causes the driven wheel 13 to abut against the driving wheel 12.

[0056] The compressed spring 21 presses the pressure plate 18 downward, causing the driven wheel 13 on the mounting base 19 to abut against the driving wheel 12. The driven wheel 13 is elastically pressed against the driving wheel 12 by the spring 21. Therefore, when the thickness of the lining 30 changes (such as when a joint appears), the spring 21 will extend and retract accordingly, so that the lining 30 will not be jammed, ensuring the normal operation of the automatic lining device and greatly improving adaptability.

[0057] The structure can also adjust the compression of spring 21 by screw 20 to adjust the pressure of driven wheel 13 on driving wheel 12.

[0058] like Figure 1 and 3 As shown, in this embodiment, the cutting mechanism 7 includes a moving blade 22, a fixed blade 23, and a vertically arranged cutting cylinder 24. The fixed blade 23 is mounted on the frame 1, and the bottom of the cutting cylinder 24 is hinged to the frame 1. A connecting block 25 is hinged to the piston rod of the cutting cylinder 24, and a cutting shaft 26 is fixed on the connecting block 25. The cutting shaft 26 is rotatably mounted on the frame 1, and the moving blade 22 is mounted on the cutting shaft 26. The moving blade 22 and the fixed blade 23 can mesh with each other.

[0059] When the piston rod of the cutter cylinder 24 extends, it drives the connecting block 25 to swing. The connecting block 25 drives the cutter shaft 26 to swing. When the cutter shaft 26 drives the moving blade 22 to rotate and meshes with the fixed blade 23, the cutting of the lining fabric 30 is completed.

[0060] like Figure 1 As shown in Figure 3, in this embodiment, a spring block 27 is installed on the cutter shaft 26, and a spring 28 in a compressed state is sleeved on the cutter shaft 26. One end of the spring 28 abuts against the frame 1, and the other end of the spring 28 abuts against the spring block 27.

[0061] The elastic force of spring 28 exerts a force on the moving blade 22, pressing the fixed blade 23 and the moving blade 22 together. When the moving blade 22 rotates to the position of the fixed blade 23, the two blades mesh together. By adjusting the position of the spring block 27, the elastic force of spring 28 can be adjusted to regulate the degree of pressing between the moving blade 22 and the fixed blade 23.

[0062] This utility model also provides a trouser loop machine, which includes any of the above-mentioned automatic lining devices.

[0063] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. An automatic lining device, the automatic lining device comprising a frame (1), characterized in that, The frame (1) is provided with a lining strip conveying mechanism (2) and a lining feeding component (3) for conveying lining strips. The lining feeding component (3) includes a mounting block (4) and a driving component (5) for driving the mounting block (4) to move laterally. The driving component (5) is mounted on the frame (1). A pressure plate (6) that can move up and down is provided above the mounting block (4). The frame (1) is also provided with a cutting mechanism (7) for cutting the lining fabric (30).

2. The automatic lining device according to claim 1, characterized in that, A clamping cylinder (8) is provided on the mounting block (4), and the piston rod of the clamping cylinder (8) can extend from above the mounting block (4). The pressure plate (6) is installed on the piston rod of the clamping cylinder (8).

3. An automatic lining device according to claim 1 or 2, characterized in that, The drive unit (5) includes a transverse cylinder (9), and the mounting block (4) is mounted on the piston rod of the transverse cylinder (9).

4. An automatic lining device according to claim 1 or 2, characterized in that, The drive unit (5) includes a hydraulic cylinder or a linear motor (10), and the mounting block (4) is mounted on the piston rod of the hydraulic cylinder or the output shaft of the linear motor (10).

5. An automatic lining device according to claim 1 or 2, characterized in that, The lining strip conveying mechanism (2) includes a motor (10), a first roller (11) capable of rotation, a driving wheel (12), and a driven wheel (13). The driven wheel (13) abuts against the driving wheel (12). The first roller (11) is located in front of the driving wheel (12). The motor (10) is mounted on the frame (1). A pulley (14) is mounted on the output shaft of the motor (10). A belt pulley is mounted on the end of the driving wheel (12). Roller 2 (15), roller 1 (11) is equipped with pulley 3 (16) at the end, and a rotatable idler wheel (17) is installed on the frame (1). A synchronous belt (31) is connected to pulley 1 (14), pulley 2 (15), pulley 3 (16) and idler wheel (17). Pulley 1 (14), pulley 3 (16) and idler wheel (17) are located inside the synchronous belt (31), and pulley 2 (15) is located outside the synchronous belt (31).

6. An automatic lining device according to claim 5, characterized in that, A pressure plate (18) that can move up and down is installed on the frame (1). A mounting base (19) is fixed on the pressure plate (18). The driven wheel (13) is rotatably mounted on the mounting base (19). A screw (20) is threaded onto the pressure plate (18). A spring (21) is sleeved on the screw (20). The spring (21) is in a compressed state and causes the driven wheel (13) to abut against the driving wheel (12).

7. An automatic lining device according to claim 1 or 2, characterized in that, The cutting mechanism (7) includes a moving blade (22), a fixed blade (23), and a vertically arranged cutting cylinder (24). The fixed blade (23) is mounted on the frame (1). The bottom of the cutting cylinder (24) is hinged to the frame (1). A connecting block (25) is hinged to the piston rod of the cutting cylinder (24). A cutting shaft (26) is fixed on the connecting block (25). The cutting shaft (26) is rotatably mounted on the frame (1). The moving blade (22) is mounted on the cutting shaft (26). The moving blade (22) and the fixed blade (23) can mesh with each other.

8. An automatic lining device according to claim 7, characterized in that, A spring block (27) is installed on the cutter shaft (26), and a spring two (28) in a compressed state is sleeved on the cutter shaft (26). One end of the spring two (28) abuts against the frame (1), and the other end of the spring two (28) abuts against the spring block (27).

9. A trouser loop machine, characterized in that, The trouser looper includes an automatic lining device as described in any one of claims 1-8.

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