Lining device of belt loop machine and belt loop machine

Abstract

The utility model provides a lining adding device of a belt loop machine and the belt loop machine, and belongs to the technical field of sewing equipment. The lining adding device comprises a machine frame, the machine frame comprises a needle plate, a lining blowing component, a lining cloth conveying mechanism used for conveying lining cloth and a cutter mechanism used for cutting off the lining cloth are arranged on the machine frame, the lining blowing component comprises an air blowing pipe and an installation block, the installation block is provided with an inner cavity, and the air blowing pipe is connected to the installation block in an inserted mode and communicated with the inner cavity of the installation block. An air outlet communicated with the inner cavity of the mounting block is formed in the mounting block, and the air outlet is positioned above the needle plate and gradually inclines downwards from inside to outside. According to the lining adding device, lining cloth is conveyed more smoothly, and the conveying efficiency of the lining cloth is improved.

Description

Technical Field

[0001] This utility model belongs to the field of sewing equipment technology, and relates to a lining device for a trouser loop machine and the trouser loop machine itself. 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] During the sewing process, the lining is usually placed in manually, then the pants are placed on top of the lining, and then the trousers are folded onto the pants before sewing. This method is relatively inefficient.

[0005] To address the aforementioned technical issues, a lining feeding device for trouser loop machines was developed. This device employs an air-blowing pipe that blows air through air holes to the lining fabric, thus conveying it. However, designing different lining fabric conveying structures is an essential requirement for technological innovation. Summary of the Invention

[0006] This utility model addresses the aforementioned problems in the existing technology by providing a lining device for a trouser loop machine. The technical problem to be solved by this utility model is: how to convey the lining fabric.

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

[0008] A lining device for a trouser looper, the lining device comprising a frame, the frame including a needle plate, a lining blowing component, a lining conveying mechanism for conveying lining, and a cutting mechanism for cutting lining, characterized in that the lining blowing component includes an air blowing pipe and a mounting block, the mounting block having an inner cavity, the air blowing pipe being inserted into the mounting block and communicating with the inner cavity of the mounting block, the mounting block having an air outlet communicating with the inner cavity of the mounting block, the air outlet being located above the needle plate and gradually sloping downwards from the inside out.

[0009] Its working principle is as follows: This lining device is installed on the trouser loop machine. During operation, the lining conveying mechanism transports the lining to position one, and then the cutting mechanism cuts the lining. After that, the lining conveying mechanism sends the cut lining to position two, where the lining is located on the needle plate. After the trouser loop machine start button is pressed, the lining blowing component is activated during the process of the trouser loop machine sending the trouser loop to the sewing table. The airflow blown out by the air blowing pipe passes through the inner cavity of the mounting block and comes out from the air outlet. Then the airflow will transport the lining at position two to position three (the sewing position), and the lining, trouser loop, and fabric piece are sewn together.

[0010] In this lining device, the airflow blown out by the air pipe comes out from the air outlet of the mounting block. The air outlet is located above the needle plate and gradually slopes downward from the inside to the outside. This structure allows the airflow to travel a shorter path to blow onto the lining, increasing the power of the lining movement, making the lining conveying smoother, and improving the conveying efficiency of the lining.

[0011] In the lining device of the above-mentioned trouser loop machine, the air outlet includes an air blowing hole, which gradually slopes downward from the inside to the outside.

[0012] In the lining device of the above-mentioned trouser loop machine, there are two or more air holes, and each air hole is distributed along the width direction of the needle plate.

[0013] During conveying, the lining moves along the length of the needle plate, and there are multiple air blowing holes, with each air blowing hole distributed in the width direction of the needle plate. This causes the lining to be pushed by airflow in multiple parts in the transverse direction, further improving the conveying efficiency.

[0014] In the lining device of the above-mentioned trouser loop machine, the air outlet includes an air blowing groove, which extends along the width direction of the needle plate. The air blowing groove has an upper groove wall and a lower groove wall, which gradually slope downward from the inside to the outside.

[0015] The air outlet has a blowing groove structure. The lining moves along the length of the needle plate, while the blowing groove extends along the width of the needle plate. This structure makes the airflow larger when it comes out of the blowing groove, so that the lining is pushed by a larger airflow and can also improve the conveying efficiency.

[0016] In the lining device of the above-mentioned trouser loop machine, the lining blowing component further includes a guide block, which is installed above the needle plate. The bottom of the guide block has a relief cavity for the lining to pass through, and the air outlet of the mounting block is opposite to the relief cavity.

[0017] The clearance cavity at the bottom of the guide block and the needle plate form a channel for the lining to pass through. The airflow blown out by the air pipe comes out from the air outlet of the mounting block and then blows into the channel. The airflow transports the lining out of the channel. This structure plays a good guiding role for the lining, so that the lining reaches the required position more accurately.

[0018] In the lining device of the above-mentioned trouser loop machine, the inner end of the cavity wall of the relief cavity has an inclined surface, which gradually slopes upward from the outside to the inside.

[0019] The inclined surface serves to gather airflow and guide the lining that comes out at an angle (the lining is transported from bottom to top), allowing the lining to smoothly enter the relief cavity.

[0020] In the lining device of the above-mentioned trouser loop machine, the lining conveying mechanism includes a motor, a first roller that can rotate, a driving wheel, and a driven wheel. The driven wheel abuts against the driving wheel. The first roller is located in front of the driving wheel. The motor is mounted on the frame. A first pulley is mounted on the output shaft of the motor. A second pulley is mounted on the end of the driving wheel. A third pulley is mounted on the end of the first roller. A rotatable idler wheel is mounted on the frame. The idler wheel can move up and down and can be positioned on the frame. A synchronous belt is connected to the first, second, third, and idler wheels. The first, third, and idler wheels are located inside the synchronous belt, and the second pulley is located outside the synchronous belt.

[0021] After this lining device is installed on the trouser loop machine, 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.

[0022] The working steps are as follows:

[0023] 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;

[0024] S2. The cutting mechanism cuts the lining fabric;

[0025] 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 roller one.

[0026] S4. After the start button of the trouser hook machine is pressed, the lining blowing component is activated during the process of the trouser hook machine sending the trouser hook to the sewing table. The airflow blown out from the air outlet of the mounting block will then transport the lining at position two to position three (sewing position). The lining, trouser hook and fabric piece are sewn together.

[0027] S5. During the sewing process, the lining device automatically repeats steps S1-S4, waiting for the next start signal.

[0028] In the lining device of the above-mentioned trouser loop machine, the cutting mechanism includes a moving blade, a fixed blade, and a vertically arranged cutting cylinder. The fixed blade is mounted on the machine frame, the bottom of the cutting cylinder is hinged to the machine frame, a connecting block is hinged to the piston rod of the cutting cylinder, a cutting shaft is fixed on the connecting block, the cutting shaft is rotatably mounted on the machine frame, the moving blade is mounted on the cutting shaft, and the moving blade and the fixed blade can mesh with each other.

[0029] 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.

[0030] In the lining device of the above-mentioned trouser loop machine, a spring block that can move left and right and can be positioned on the cutter shaft is installed on the cutter shaft, and a spring in a compressed state is sleeved on the cutter shaft. One end of the spring abuts against the machine frame, and the other end of the spring abuts against the spring block.

[0031] 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.

[0032] In one embodiment, the elastic block is locked to the cutter shaft by bolts. After the bolts are loosened, the elastic block can move left and right relative to the cutter shaft. By adjusting the position of the elastic block, the compression degree and elastic force of the second spring can be adjusted to adjust the clamping degree of the moving blade and the fixed blade.

[0033] This utility model also provides a trouser loop machine, which includes any of the above-mentioned lining devices.

[0034] Compared with the prior art, the advantages of this utility model are as follows:

[0035] 1. In this lining device, the air outlet of the mounting block is located above the needle plate, and the air outlet gradually slopes downward from the inside to the outside, so that the airflow travels a shorter path to blow onto the lining, increasing the power of the lining movement, making the lining conveying smoother, and improving the conveying efficiency of the lining.

[0036] 2. This lining device has two or more air blowing holes, which are distributed in the width direction of the needle plate, so that the lining fabric is pushed by airflow in multiple parts in the transverse direction, thereby improving the conveying efficiency.

[0037] 3. The air outlet of this lining device is a blowing channel structure. When the air comes out of the blowing channel, the air flow is larger, which makes the lining cloth more pushed by the air flow, thus greatly improving the conveying efficiency. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of the lining device;

[0039] Figure 2 This is a schematic diagram of the mounting block in Embodiment 1;

[0040] Figure 3 This is a schematic diagram of the mounting block in Embodiment 2;

[0041] Figure 4 This is a schematic diagram of the guide block structure;

[0042] Figure 5 This is a schematic diagram of the cutting mechanism.

[0043] In the diagram: 1. Frame, 2. Needle plate, 3. Lining blowing component, 4. Lining conveying mechanism, 5. Cutting mechanism, 6. Air blowing pipe, 7. Mounting block, 8. Inner cavity, 9. Air outlet, 10. Air blowing hole, 11. Air blowing groove, 12. Guide block, 13. Relief cavity, 14. Inclined surface, 15. Motor, 16. Roller 1, 17. Driving wheel, 18. Driven wheel, 19. Pulley 1, 20. Pulley 2, 21. Pulley 3, 22. Idler wheel, 23. Moving knife, 24. Fixed knife, 25. Cutting cylinder, 26. Connecting block, 27. Cutting shaft, 28. Elastic block, 29. Spring, 30. Lining, 31. Machine head cover, 32. Synchronous belt. Detailed Implementation

[0044] 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.

[0045] Example 1

[0046] like Figure 1-2 As shown, this lining device includes a frame 1, which includes a needle plate 2. The frame 1 is equipped with a lining blowing component 3, a lining conveying mechanism 4 for conveying the lining 30, and a cutting mechanism 5 for cutting the lining 30. The lining blowing component 3 includes an air blowing pipe 6 and a mounting block 7. The mounting block 7 is mounted on the frame 1 and has an inner cavity 8. The air blowing pipe 6 is inserted into the mounting block 7 and communicates with the inner cavity 8 of the mounting block 7. An air outlet 9 is opened on the mounting block 7 and communicates with the inner cavity 8 of the mounting block 7. The air outlet 9 is located above the needle plate 2 and gradually slopes downward from the inside to the outside.

[0047] This lining device is installed on the trouser hook machine. During operation, the lining conveying mechanism 4 transports the lining 30 to position one, and then the cutting mechanism 5 cuts the lining 30. After that, the lining conveying mechanism 4 sends the cut lining 30 to position two, where the lining 30 is located on the needle plate 2. After the trouser hook machine start button is pressed, the lining blowing component 3 is activated during the process of the trouser hook machine sending the trouser hook to the sewing table. The airflow blown out by the air blowing pipe 6 passes through the inner cavity 8 of the mounting block 7 and comes out from the air outlet 9. Then the airflow will transport the lining 30 at position two to position three (the sewing position), and the lining 30, trouser hook, and fabric piece are sewn together.

[0048] like Figure 2 As shown, in this embodiment, the air outlet 9 includes an air blowing hole 10, which gradually slopes downward from the inside to the outside.

[0049] like Figure 2 As shown, in this embodiment, there are four air holes 10, and each air hole 10 is distributed along the width direction of the needle plate 2. In other embodiments, there are two or more air holes 10.

[0050] During conveying, the lining 30 moves along the length of the needle plate 2. There are two or more air holes 10, and each air hole 10 is distributed in the width direction of the needle plate 2, so that the lining 30 is pushed by airflow in multiple parts in the transverse direction, thereby further improving the conveying efficiency.

[0051] like Figure 1 and 4 As shown, in this embodiment, the blown lining component 3 also includes a guide block 12, which is installed above the needle plate 2. The bottom of the guide block 12 has a relief cavity 13 for the lining cloth 30 to pass through, and the air outlet 9 of the mounting block 7 is opposite to the relief cavity 13.

[0052] The clearance cavity 13 at the bottom of the guide block 12 and the needle plate 2 form a channel for the lining 30 to pass through. The airflow blown out by the air pipe 6 comes out from the air outlet 9 of the mounting block 7 and then blows into the channel. The airflow transports the lining 30 out of the channel. This structure plays a good guiding role for the lining 30, so that the lining 30 reaches the required position more accurately.

[0053] like Figure 4 As shown, in this embodiment, the inner end of the cavity wall of the relief cavity 13 has a slope 14, which gradually slopes upward from the inside to the outside.

[0054] The inclined surface 14 serves to gather airflow and guide the lining 30 that comes out obliquely upward (the lining 30 is transported from bottom to top), so that the lining 30 can smoothly enter the relief cavity 13.

[0055] like Figure 1As shown, in this embodiment, the lining conveying mechanism 4 includes a motor 15, a first roller 16 that can rotate, a driving wheel 17, and a driven wheel 18. The driven wheel 18 abuts against the driving wheel 17. The first roller 16 is located in front of the driving wheel 17. The motor 15 is mounted on the frame 1. A first pulley 19 is mounted on the output shaft of the motor 15. A second pulley 20 is mounted on the end of the driving wheel 17. A third pulley 21 is mounted on the end of the first roller 16. A rotatable idler wheel 22 is mounted on the frame 1. The idler wheel 22 can move up and down and can be positioned on the frame 1. A synchronous belt 32 is connected to the first pulley 19, the second pulley 20, the third pulley 21, and the idler wheel 22. The first pulley 19, the third pulley 21, and the idler wheel 22 are located inside the synchronous belt 32, and the second pulley 20 is located outside the synchronous belt 32.

[0056] After the lining device is installed on the trouser loop machine, the roller 16 is located above the machine head cover 31 and abuts against the machine head cover 31. In this structure, the motor 15 drives the roller 16 and the drive wheel 17 to rotate simultaneously through the synchronous belt 32, the idler pulley 22 and the three pulleys.

[0057] The working steps are as follows:

[0058] S1. The driving wheel 17 and the driven wheel 18 clamp the lining cloth 30 and transport it to a position, while the roller 16 presses the lining cloth 30 onto the machine head cover 31.

[0059] S2. The cutting mechanism 5 cuts the lining fabric 30;

[0060] S3. The rotating roller 16 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 16.

[0061] 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 lining blowing component 3 is started. The airflow blown out by the air blowing pipe 6 comes out from the air outlet 9 of the mounting block 7. Then the airflow 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.

[0062] S5. During the sewing process, the lining device automatically repeats steps S1-S4, waiting for the next start signal.

[0063] like Figure 1 and 5 As shown, in this embodiment, the cutting mechanism 5 includes a moving blade 23, a fixed blade 24, and a vertically arranged cutting cylinder 25. The fixed blade 24 is mounted on the frame 1, and the bottom of the cutting cylinder 25 is hinged to the frame 1. A connecting block 26 is hinged to the piston rod of the cutting cylinder 25, and a cutting shaft 27 is fixed on the connecting block 26. The cutting shaft 27 is rotatably mounted on the frame 1, and the moving blade 23 is mounted on the cutting shaft 27. The moving blade 23 and the fixed blade 24 can mesh with each other.

[0064] When the piston rod of the cutter cylinder 25 extends, it drives the connecting block 26 to swing. The connecting block 26 drives the cutter shaft 27 to swing. When the cutter shaft 27 drives the moving blade 23 to rotate and meshes with the fixed blade 24, the cutting of the lining fabric 30 is completed.

[0065] like Figure 1 and 5 As shown, in this embodiment, a spring block 28 that can move left and right and can be positioned on the cutter shaft 27 is installed on the cutter shaft 27, and a spring 29 in a compressed state is sleeved on the cutter shaft 27. One end of the spring 29 abuts against the frame 1, and the other end of the spring 29 abuts against the spring block 28.

[0066] The elastic force of spring 29 exerts a force on the moving blade 23, pressing the fixed blade 24 and the moving blade 23 together. When the moving blade 23 rotates to the position of the fixed blade 24, the two blades mesh together. By adjusting the position of the spring block 28, the elastic force of spring 29 can be adjusted to regulate the degree of compression between the moving blade 23 and the fixed blade 24.

[0067] In one embodiment, the elastic block 28 is locked to the cutter shaft 27 by bolts. After the bolts are loosened, the elastic block 28 can move left and right relative to the cutter shaft 27. By adjusting the position of the elastic block 28, the compression degree and elastic force of the spring 29 can be adjusted to adjust the clamping degree of the moving blade 23 and the fixed blade 24.

[0068] Example 2

[0069] The structure and principle of this embodiment are basically the same as those of Embodiment 1, except that, as Figure 3 As shown, the air outlet 9 of the mounting block 7 includes an air blowing groove 11, which extends along the width direction of the needle plate 2. The air blowing groove 11 has an upper groove wall and a lower groove wall, which gradually slope downward from the inside to the outside.

[0070] The air outlet 9 has the structure of an air blowing groove 11. The lining 30 moves along the length of the needle plate 2, while the air blowing groove 11 extends along the width of the needle plate 2. This structure makes the airflow larger when it comes out of the air blowing groove 11, so that the lining 30 is pushed by a larger airflow, which can also improve the conveying efficiency.

[0071] This utility model also provides a trouser loop machine, which includes any of the above-mentioned lining devices.

[0072] 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 substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A tipping device for a flyer machine, said tipping device comprising a frame (1) which comprises a needle plate (2), a tipping member (3) being arranged on the frame (1), a tipping fabric transport mechanism (4) for transporting a tipping fabric (30) and a cutting mechanism (5) for cutting the tipping fabric (30), characterized in that The blown liner component (3) includes an air blowing pipe (6) and a mounting block (7). The mounting block (7) has an inner cavity (8). The air blowing pipe (6) is inserted into the mounting block (7) and communicates with the inner cavity (8) of the mounting block (7). An air outlet (9) communicating with the inner cavity (8) of the mounting block (7) is provided on the mounting block (7). The air outlet (9) is located above the needle plate (2) and gradually slopes downward from the inside to the outside.

2. A notching device for a flyer machine according to claim 1, characterized in that The air outlet (9) includes an air blowing hole (10), which gradually slopes downward from the inside to the outside.

3. A notching device for a flyer machine according to claim 2, characterized in that There are two or more air holes (10), and each air hole (10) is distributed along the width direction of the needle plate (2).

4. The notching device of claim 1 wherein, The air outlet (9) includes an air blowing groove (11) which extends along the width direction of the needle plate (2). The air blowing groove (11) has an upper groove wall and a lower groove wall, which gradually slope downward from the inside to the outside.

5. A notching device for a flyer machine as claimed in claim 1 or 2 or 3 or 4, characterized in that, The blown lining component (3) also includes a guide block (12) which is mounted above the needle plate (2). The bottom of the guide block (12) has a relief cavity (13) for the lining cloth (30) to pass through. The air outlet (9) of the mounting block (7) is opposite to the relief cavity (13).

6. A notching device for a flyer machine according to claim 5, characterized in that The inner end of the cavity wall of the relief cavity (13) has a slope (14), which gradually slopes upward from the outside to the inside.

7. A notching device for a flyer machine according to claim 1 or 2 or 3 or 4, characterized in that, The lining conveying mechanism (4) includes a motor (15), a first roller (16) capable of rotation, a drive wheel (17), and a driven wheel (18). The driven wheel (18) abuts against the drive wheel (17). The first roller (16) is located in front of the drive wheel (17). The motor (15) is mounted on the frame (1). A pulley (19) is mounted on the output shaft of the motor (15). A second pulley (20) is mounted on the end of the drive wheel (17). The first roller (16)... 16) is equipped with a pulley three (21) at its end. A rotatable idler wheel (22) is installed on the frame (1). The idler wheel (22) can move up and down and can be positioned on the frame (1). A synchronous belt (32) is connected to the pulley one (19), pulley two (20), pulley three (21) and idler wheel (22). The pulley one (19), pulley three (21) and idler wheel (22) are located inside the synchronous belt (32), and the pulley two (20) is located outside the synchronous belt (32).

8. A notching device for a flyer machine according to claim 1 or 2 or 3 or 4, characterized in that, The cutting mechanism (5) includes a moving blade (23), a fixed blade (24), and a vertically arranged cutting cylinder (25). The fixed blade (24) is mounted on the frame (1). The bottom of the cutting cylinder (25) is hinged to the frame (1). A connecting block (26) is hinged to the piston rod of the cutting cylinder (25). A cutting shaft (27) is fixed on the connecting block (26). The cutting shaft (27) is rotatably mounted on the frame (1). The moving blade (23) is mounted on the cutting shaft (27). The moving blade (23) and the fixed blade (24) can mesh with each other.

9. A notching device for a flyer machine according to claim 8, characterized in that, The cutter shaft (27) is equipped with a spring block (28) that can move left and right and be positioned on the cutter shaft (27). A spring (29) in a compressed state is sleeved on the cutter shaft (27). One end of the spring (29) abuts against the frame (1), and the other end of the spring (29) abuts against the spring block (28).

10. A flyer machine characterized in that, The trouser looper includes a lining device as described in any one of claims 1-9.

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