A lining device for trouser loop machine and trouser loop machine

Abstract

The present invention provides a lining device for a trouser loop machine and the trouser loop machine, belonging to the field of mechanical technology. The lining device comprises a frame, on which a lining strip conveying mechanism for conveying lining strips and a lining blowing component are arranged, the lining blowing component comprises an air blowing pipe, on which a plurality of air holes for blowing air to the lining cloth are opened, and a cutting mechanism for cutting the lining cloth is also arranged on the frame. The lining device can be automatically lined with the trouser loop machine, which greatly improves the working efficiency. The automatic lining device does not affect the production rhythm of the original trouser loop machine when working, and the number of cycles can be selected at will, and the lining cloth can be added at any position within the number of cycles.

Description

Technical Field

[0001] The invention belongs to the technical field of sewing equipment, and relates to a lining device for a trouser loop machine and the trouser loop machine. Background Art

[0002] In the process of sewing pants, it is often necessary to use a trouser loop machine to sew the trouser loop. One end of the trouser loop is sewn on the edge of the trouser waist, and the other end is sewn on the trouser body, and is fixed by sewing with a bartack. For the relevant structure and working principle of the trouser loop machine, please refer to an automatic trouser loop machine provided by application number 202011365587.8.

[0003] Since a pair of trousers generally has five trouser loops, the positions of the trouser loops on the sides of the trousers are different. In some positions, the number of fabric layers has no effect, while in some positions, the number of fabric layers is small and thin, which may easily cause problems such as fabric damage due to dense needle insertion. At this time, a small piece of lining cloth needs to be added under the base fabric of these parts to solve the problem.

[0004] For manual operation, the interlining is usually put in manually, and then the trousers are covered on the interlining, and then the trouser loops are folded on the trouser body and then sewn, which is a low efficiency method.

[0005] The trouser loop machine in the prior art does not have the function of automatically adding lining. When the trouser loop machine is in operation, the operator covers the sewing table with the whole trousers, and after completing the sewing of one trouser loop, the trouser waist is turned to sew the next one. Therefore, the lining is fed externally, and the operator needs to wait after completing the sewing of one trouser loop and taking out the trousers. However, the trouser loop machine only takes a few seconds to complete one trouser loop. If the lining needs to be added while waiting, the work efficiency will be greatly reduced, and there is a risk of injury to people. Summary of the invention

[0006] The present invention aims at the above problems existing in the prior art and provides a lining device for a trouser loop machine. The technical problem to be solved by the present invention is: how to automatically add lining cloth.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] A lining device for a trouser loop machine, the lining device comprising a frame, characterized in that a lining strip conveying mechanism for conveying lining strips and a lining blowing component are arranged on the frame, the lining blowing component comprises an air blowing pipe, the air blowing pipe is provided with a plurality of air holes for blowing air to the lining cloth, and the frame is also provided with a cutting mechanism for cutting the lining cloth.

[0009] Its working principle is: this lining device is installed on the trouser loop machine. When working, the lining strip conveying mechanism conveys the lining cloth to position one, then the cutting knife mechanism cuts the lining cloth, and then the lining strip conveying mechanism conveys the cut lining cloth to position two. After the trouser loop machine start button is pressed, in the process of the trouser loop machine conveying the trouser loop to the sewing table, the lining blowing component is started, and the air flow blown out by the air blow pipe comes out from the air hole, and then the air flow conveys the lining cloth at position two to position three (sewing position), and the lining cloth is sewn together with the trouser loop and the cloth piece.

[0010] The lining device can cooperate with the trouser loop machine to automatically add lining, which greatly improves the working efficiency. The automatic lining device does not affect the production rhythm of the original trouser loop machine when working, and will not affect the production efficiency of the original trouser loop machine. The number of cycles can be selected at will, and lining cloth can be added at any position within the number of cycles.

[0011] In the above-mentioned lining device of a trouser loop machine, the lining blowing component includes a mounting block, and the air blowing pipe is plugged into the mounting block.

[0012] In the above-mentioned lining device for a trouser loop machine, the mounting block is provided with a plurality of screw holes for mounting bolts.

[0013] In the above-mentioned lining device of a trouser loop machine, the lining blowing component also includes a needle plate and a guide block, the guide block is installed above the needle plate, the bottom of the guide block has a clearance cavity for the lining cloth to pass through, and the air hole of the blowing pipe is opposite to the clearance cavity and is connected to the clearance cavity.

[0014] The give way cavity at the bottom of the guide block and the needle plate form a channel for the lining cloth to pass through. The air flow blown out of the air pipe comes out from the air hole and then blows into the channel. The air flow transports the lining cloth out of the channel. This structure plays a good guiding role for the lining strip, so that the lining cloth can reach the required position more accurately.

[0015] In the above-mentioned lining device for a trouser loop machine, the inner end of the cavity wall of the clearance cavity has an inclined surface, and the inclined surface gradually slopes upward from the outside to the inside.

[0016] In the above-mentioned lining device of a trouser loop machine, a stopper is installed at the front end of the needle plate, and the stopper extends from the front of the needle plate toward the top of the needle plate.

[0017] The stopper extends from the front of the needle plate toward the top of the needle plate, and can block and position the lining cloth.

[0018] In the above-mentioned lining device of a trouser loop machine, the lining strip transmission mechanism includes a motor and a rotatable roller one, the motor and the roller one are arranged on the frame, and the output shaft of the motor is connected to the roller one.

[0019] After the lining device is installed on the trouser loop machine, the roller one is located above the machine head cover and abuts against the machine head cover, the roller one presses the lining cloth onto the machine head cover, and when the motor drives the roller to rotate, the roller drives the lining cloth to move forward, thereby realizing the conveying of the lining cloth.

[0020] In the above-mentioned lining device of a trouser loop machine, the lining strip transmission mechanism includes a motor, a driving wheel and a driven wheel both of which can rotate, the driven wheel abuts against the driving wheel, the motor is arranged on a frame, and the output shaft of the motor is connected to the driving wheel.

[0021] When the motor drives the driving wheel to rotate, the driven wheel rotates with the driving wheel. When the lining cloth reaches the contact point between the driving wheel and the driven wheel, it is clamped by the driving wheel and the driven wheel. The driving wheel and the driven wheel rotate at the same time to drive the lining cloth forward, thereby realizing the conveying of the lining cloth.

[0022] In the above-mentioned lining device of a trouser loop machine, the lining strip transmission mechanism includes a motor, a driving wheel and a driven wheel both of which can rotate, the driven wheel abuts against the driving wheel, the motor is arranged on a frame, and synchronous wheels are respectively arranged on the output shaft of the motor and the end of the driving wheel, and a synchronous belt is connected between the synchronous wheels.

[0023] The motor drives the driving wheel to rotate through the synchronous belt and two synchronous wheels. When the driving wheel rotates, the driven wheel rotates with the driving wheel. When the lining cloth reaches the contact point between the driving wheel and the driven wheel, it is clamped by the driving wheel and the driven wheel. The driving wheel and the driven wheel rotate at the same time to drive the lining cloth forward, thereby realizing the transportation of the lining cloth.

[0024] In the above-mentioned lining device of a trouser loop machine, the lining strip transmission mechanism includes a motor, a rotatable roller 1, a driving wheel and a driven wheel, the driven wheel abuts against the driving wheel, the roller 1 is located in front of the driving wheel, the motor is arranged on a frame, a pulley 1 is installed on the output shaft of the motor, a pulley 2 is installed on the end of the driving wheel, a pulley 3 is installed on the end of the roller 1, a rotatable idler wheel is installed on the frame, the idler wheel can move up and down and can be positioned on the frame, the pulley 1, the pulley 2, the pulley 3 and the idler wheel are connected with a synchronous belt, the pulley 1, the pulley 3 and the idler wheel are located on the inner side of the synchronous belt, and the pulley 2 is located on the outer side of the synchronous belt.

[0025] After the lining device is installed on the trouser loop machine, the roller one is located above the machine head cover and abuts against the machine head cover. In this structure, the motor drives the roller one and the driving wheel to rotate simultaneously through the synchronous belt, the idler wheel and three pulleys.

[0026] The working steps are as follows:

[0027] S1. The driving wheel and the driven wheel clamp the lining cloth and transport it to a position, and the roller 1 presses the lining cloth onto the head cover;

[0028] S2. The cutting mechanism cuts the lining cloth;

[0029] S3. The rotating roller 1 delivers the sheared lining cloth to position 2, and at the same time, the next piece of lining cloth is delivered to position 1 and pressed by roller 1;

[0030] S4. After the trouser loop machine start button is pressed, while the trouser loop machine is sending the trouser loop to the sewing table, the lining blowing component is started, and the air flow from the air blowing pipe comes out from the air hole, and then the air flow transports the lining cloth at position 2 to position 3 (sewing position), and the lining cloth, trouser loop and cloth pieces are sewn together;

[0031] S5. During the sewing process, the lining device automatically repeats steps S1-S4 and waits for the next start signal.

[0032] In the above-mentioned lining device of a trouser loop machine, a pressure plate which can move up and down is installed on the frame, a mounting seat is fixed on the pressure plate, the driven wheel is rotatably mounted on the mounting seat, a screw is threadedly connected on the pressure plate, a spring 1 is sleeved on the screw, the spring 1 is in a compressed state and makes the driven wheel rest against the driving wheel.

[0033] The spring 1 in the compressed state presses the pressure plate downward, so that the driven wheel on the mounting seat is pressed against the driving wheel. The driven wheel is elastically pressed against the driving wheel by the spring 1. Therefore, when the thickness of the lining cloth changes (such as a joint), the spring 1 will expand and contract accordingly, so that the lining cloth will not be stuck, thereby ensuring the normal operation of the lining device and greatly improving the adaptability.

[0034] The structure can also adjust the compression degree of spring 1 through a screw to adjust the pressure of the driven wheel on the driving wheel.

[0035] In the above-mentioned lining device of a trouser loop machine, the cutting mechanism includes a moving knife, a fixed knife and a vertically arranged cutting cylinder, the fixed knife is installed on the frame, the bottom of the cutting cylinder is hinged on the frame, a connecting block is hinged on the piston rod of the cutting cylinder, a cutting shaft is fixed on the connecting block, the cutting shaft is rotatably installed on the frame, the moving knife is installed on the cutting shaft, and the moving knife and the fixed knife can engage with each other.

[0036] When the piston rod of the cutter cylinder is extended, the connecting block is driven to swing, the connecting block drives the cutter shaft to swing, and the cutter shaft drives the movable knife to rotate and mesh with the fixed knife to complete the shearing of the lining cloth.

[0037] In the above-mentioned lining device of a trouser loop machine, the cutting mechanism includes a moving knife, a fixed knife and a vertically arranged cutting cylinder, the fixed knife is installed on the frame, a connecting block is fixed on the piston of the cutting cylinder, the moving knife is installed on the connecting block, and the moving knife and the fixed knife can engage with each other.

[0038] In this structure, the cutter cylinder drives the movable knife installed on the connecting block to move up and down. When the movable knife and the fixed knife are engaged, the shearing of the lining cloth is completed.

[0039] In the above-mentioned lining device of a trouser loop machine, an elastic block which can be moved left and right and can be positioned on the cutter shaft 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 elastic block.

[0040] The elastic force of the second spring exerts a force on the movable knife, and the fixed knife and the movable knife are pressed by the elastic force of the second spring, and when the movable knife rotates to the fixed knife, the two are meshed. By adjusting the position of the elastic block, the elastic force of the second spring can be adjusted to adjust the degree of pressing between the movable knife and the fixed knife.

[0041] The present invention also provides a trouser loop machine, which comprises any one of the above-mentioned lining devices.

[0042] Compared with the prior art, the advantages of the present invention are as follows:

[0043] 1. This lining device can cooperate with the trouser loop machine to automatically add lining. There are no moving parts on the needle plate surface during the air blowing lining process, which does not affect the operator and greatly improves the work efficiency. The automatic lining device does not affect the production rhythm of the original trouser loop machine when working, and will not affect the production efficiency of the original trouser loop machine. The number of cycles can be selected at will, and lining cloth can be added at any position within the number of cycles.

[0044] 2. The driven wheel of the lining device is elastically pressed against the driving wheel by a spring. When the thickness of the lining cloth changes, the spring will expand and contract accordingly, so that the lining cloth will not be stuck, thereby ensuring the normal operation of the lining device and greatly improving the adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a structural schematic diagram of the lining device;

[0046] Figure 2 It is a schematic diagram of the structure of the installation block;

[0047] Figure 3 It is a structural schematic diagram of the guide block;

[0048] Figure 4 is a structural schematic diagram of the lining strip conveying mechanism in the second embodiment;

[0049] Figure 5 is a structural schematic diagram of the lining strip conveying mechanism in the third embodiment;

[0050] Figure 6 is a structural schematic diagram of the lining strip conveying mechanism in the fourth embodiment;

[0051] Figure 7 It is a structural schematic diagram of the cutter mechanism;

[0052] Figure 8 It is a structural schematic diagram of the cutter mechanism in the fifth embodiment.

[0053] In the figure: 1 frame, 2 lining strip transmission mechanism, 3 lining blowing component, 4 mounting block, 5 air duct, 6 blowing pipe, 7 screw hole, 8 cutter mechanism, 9 needle plate, 10 guide block, 11 give way cavity, 12 block, 13 motor, 14 roller 1, 15 driving wheel, 16 driven wheel, 17 synchronous wheel, 18 synchronous belt, 19 pulley 1, 20 pulley 2, 21 pulley 3, 22 idler wheel, 23 pressure plate, 24 mounting seat, 25 screw, 26 spring 1, 27 moving knife, 28 fixed knife, 29 cutter cylinder, 30 connecting block, 31 cutter shaft, 32 elastic block, 33 spring 2, 34 head cover, 35 lining cloth, 36 inclined surface. DETAILED DESCRIPTION

[0054] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0055] Embodiment 1

[0056] like Figure 1-2 As shown, the lining device includes a frame 1, on which a lining strip conveying mechanism 2 for conveying lining strips and a lining blowing component 3 are arranged. The lining blowing component 3 includes an air blowing pipe 6, on which a plurality of air holes for blowing air to the lining cloth 35 are opened. The frame 1 is also provided with a cutting mechanism 8 for cutting the lining cloth 35.

[0057] The lining device is installed on the trouser loop machine. When working, the lining strip conveying mechanism 2 conveys the lining cloth 35 to the first position, and then the cutting mechanism 8 cuts the lining cloth 35. Then the lining strip conveying mechanism 2 conveys the cut lining cloth 35 to the second position. After the trouser loop machine start button is pressed, in the process of the trouser loop machine conveying the trouser loop to the sewing table, the lining blowing component 3 is started, and the air flow blown out by the air blowing pipe 6 comes out of the air outlet. Then the air flow conveys the lining cloth 35 at the second position to the third position (sewing position), and the lining cloth 35 is sewn together with the trouser loop and the cloth piece.

[0058] like Figure 1As shown, in this embodiment, the lining blowing component 3 further includes a mounting block 4, and the air blowing pipe 6 is plugged into the mounting block 4. The mounting block 4 fixes the air blowing pipe 6 on the frame 1, and the air blowing pipe 6 directly blows air to the lining cloth 35 through the air holes.

[0059] like Figure 2 As shown, in this embodiment, a plurality of screw holes 7 for mounting bolts are provided on the mounting block 4. The air blowing pipe 6 is plugged into the mounting block 4 through the mounting holes, and the bolts are threadedly connected to the threads 7, and the bolts abut against the air blowing pipe 6 and stably fix the air blowing pipe 6.

[0060] As another embodiment, the mounting hole and the air blowing pipe 6 may also be interference fit, in which case the air blowing pipe 6 can be stably fixed on the mounting block 4 without bolts.

[0061] like Figure 1 and 3 As shown, in this embodiment, the blowing lining component 3 also includes a needle plate 9 and a guide block 10. The guide block 10 is installed above the needle plate 9. The bottom of the guide block 10 has a clearance cavity 11 for the lining cloth 35 to pass through. The air hole of the blowing pipe 6 is opposite to the clearance cavity 11 and is connected to the clearance cavity 11.

[0062] The yield cavity 11 at the bottom of the guide block 10 and the needle plate 9 form a channel for the lining cloth 35 to pass through. The air flow blown out of the air pipe 6 comes out from the air hole and then blows into the channel. The air flow transports the lining cloth 35 out of the channel. This structure has a good guiding effect on the lining strip, so that the lining cloth 35 can reach the required position more accurately.

[0063] like Figure 3 As shown, in this embodiment, the inner end of the cavity wall of the clearance cavity 11 has an inclined surface 36, and the inclined surface 36 gradually tilts upward from the outside to the inside. The inclined surface 36 not only gathers the airflow, but also guides the lining cloth 35 (the lining cloth 35 is transported from the bottom to the top) that comes out obliquely upward, so that the lining cloth 35 smoothly enters the clearance cavity 11.

[0064] like Figure 1 As shown, in this embodiment, a stopper 12 is installed at the front end of the needle plate 9, and the stopper 12 extends from the front of the needle plate 9 to the top of the needle plate 9. The stopper 12 extends from the front of the needle plate 9 to the top of the needle plate 9, and can block and position the lining cloth 35.

[0065] like Figure 1 and 7As shown, in this embodiment, the lining strip transmission mechanism 2 includes a motor 13, a rotatable roller 14, a driving wheel 15 and a driven wheel 16, the driven wheel 16 abuts against the driving wheel 15, the roller 14 is located in front of the driving wheel 15, the motor 13 is arranged on the frame 1, the output shaft of the motor 13 is mounted with a pulley 19, the end of the driving wheel 15 is mounted with a pulley 20, the end of the roller 14 is mounted with a pulley 3 21, 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, the pulley 19, the pulley 20, the pulley 3 21 and the idler wheel 22 are connected with a synchronous belt 18, the pulley 19, the pulley 3 21 and the idler wheel 22 are located on the inner side of the synchronous belt 18, and the pulley 20 is located on the outer side of the synchronous belt 18.

[0066] After the lining device is installed on the trouser loop machine, the roller 14 is located above the machine head cover 34 and abuts against the machine head cover 34. In this structure, the motor 13 simultaneously drives the roller 14 and the driving wheel 15 to rotate through the synchronous belt 18, the idler wheel 22 and three pulleys.

[0067] As an embodiment, the idler wheel 22 is fixed on the frame by means of a mounting portion and bolts. By loosening the bolts, the mounting portion can move up and down, and the idler wheel 22 moves up and down with the mounting portion. After the position of the idler wheel 22 is determined, the mounting portion is locked on the frame 1 by means of bolts. This structure can conveniently adjust the tension of the synchronous belt 18.

[0068] The working steps are as follows:

[0069] S1. The driving wheel 15 and the driven wheel 16 clamp the lining cloth 35 and transport it to a position, and the roller 14 presses the lining cloth 35 onto the head cover 34;

[0070] S2. The cutting mechanism 8 cuts the lining cloth 35;

[0071] S3. The rotating roller 14 delivers the sheared lining 35 to position 2, while the next lining 35 is delivered to position 1 and is pressed by the roller 14;

[0072] S4. After the trouser loop machine start button is pressed, while the trouser loop machine is delivering the trouser loop to the sewing station, the blowing lining component 3 is started, and the air flow from the blowing pipe 6 comes out from the air hole, and then the air flow delivers the lining cloth 35 at position 2 to position 3 (sewing position), and the lining cloth 35 is sewn together with the trouser loop and the cloth piece;

[0073] S5. During the sewing process, the lining device automatically repeats steps S1-S4 and waits for the next start signal.

[0074] like Figure 1As shown, in this embodiment, a pressure plate 23 that can move up and down is installed on the frame 1, a mounting seat 24 is fixed on the pressure plate 23, and the driven wheel 16 is rotatably mounted on the mounting seat 24. A screw 25 is threadedly connected to the pressure plate 23, and a spring 26 is sleeved on the screw 25. The spring 26 is in a compressed state and makes the driven wheel 16 rest against the driving wheel 15.

[0075] The spring 1 26 in the compressed state presses the pressure plate 23 downward, so that the driven wheel 16 on the mounting seat 24 abuts against the driving wheel 15. The driven wheel 16 is elastically pressed against the driving wheel 15 by the spring 1 26. Therefore, when the thickness of the lining cloth 35 changes (such as a joint), the spring 1 26 will expand and contract accordingly, so that the lining cloth 35 will not be stuck, thereby ensuring the normal operation of the lining device and greatly improving the adaptability.

[0076] This structure can also adjust the compression degree of the spring 1 26 through the screw 25 to adjust the pressure of the driven wheel 16 on the driving wheel 15.

[0077] like Figure 1 and 7 As shown, in this embodiment, the cutter mechanism 8 includes a movable knife 27, a fixed knife 28 and a vertically arranged cutter cylinder 29, the fixed knife 28 is installed on the frame 1, the bottom of the cutter cylinder 29 is hinged on the frame 1, a connecting block 30 is hinged on the piston rod of the cutter cylinder 29, a cutter shaft 31 is fixed on the connecting block 30, the cutter shaft 31 is rotatably installed on the frame 1, the movable knife 27 is installed on the cutter shaft 31, and the movable knife 27 and the fixed knife 28 can engage with each other.

[0078] When the piston rod of the cutter cylinder 29 is extended, the connecting block 30 is driven to swing, and the connecting block 30 drives the cutter shaft 31 to swing. When the cutter shaft 31 drives the movable knife 27 to rotate and mesh with the fixed knife 28, the lining cloth 35 is sheared.

[0079] like Figure 1 As shown in Figure 7, in this embodiment, a spring block 32 which can be moved left and right and can be positioned on the cutter shaft 31 is installed on the cutter shaft 31, and a spring 33 in a compressed state is sleeved on the cutter shaft 31, one end of the spring 33 rests on the frame 1, and the other end of the spring 33 rests on the spring block 32.

[0080] The elastic force of the second spring 33 exerts a force on the movable knife 27, and the fixed knife 28 and the movable knife 27 are pressed by the elastic force of the second spring 33, and the two are meshed when the movable knife 27 rotates to the fixed knife 28. As an embodiment, the elastic block 32 is locked on the cutter shaft 31 by a bolt. After the bolt is loosened, the elastic block 32 can move left and right relative to the cutter shaft 31. By adjusting the position of the elastic block 32, the compression degree and elastic force of the second spring 33 can be adjusted to adjust the pressing degree of the movable knife 27 and the fixed knife 28.

[0081] Embodiment 2

[0082] like Figure 4 As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment, except that the lining strip conveying mechanism 2 includes a motor 13 and a rotatable roller 14, the motor 13 and the roller 14 are arranged on the frame 1, and the output shaft of the motor 13 is connected to the roller 14.

[0083] After the lining device is installed on the trouser loop machine, the roller 14 is located above the machine head cover 34 and abuts against the machine head cover 34. The roller 14 presses the lining cloth 35 against the machine head cover 34. When the motor 13 drives the roller to rotate, the roller drives the lining cloth 35 to move forward, thereby realizing the transportation of the lining cloth 35.

[0084] Embodiment 3

[0085] like Figure 5 As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment, except that the lining strip conveying mechanism 2 includes a motor 13, a driving wheel 15 and a driven wheel 16 both of which can rotate, the driven wheel 16 abuts against the driving wheel 15, the motor 13 is arranged on the frame 1, and the output shaft of the motor 13 is connected to the driving wheel 15.

[0086] When the motor 13 drives the driving wheel 15 to rotate, the driven wheel 16 rotates with the driving wheel 15. When the lining cloth 35 reaches the contact point between the driving wheel 15 and the driven wheel 16, it is clamped by the driving wheel 15 and the driven wheel 16. The driving wheel 15 and the driven wheel 16 rotate at the same time to drive the lining cloth 35 to move forward, thereby realizing the transportation of the lining cloth 35.

[0087] Embodiment 4

[0088] like Figure 6 As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment, except that the lining strip conveying mechanism 2 includes a motor 13, a driving wheel 15 and a driven wheel 16 both of which can rotate, the driven wheel 16 abuts against the driving wheel 15, the motor 13 is arranged on the frame 1, and synchronous wheels 17 are respectively arranged on the output shaft of the motor 13 and the end of the driving wheel 15, and a synchronous belt 18 is connected between the synchronous wheels 17.

[0089] The motor 13 drives the driving wheel 15 to rotate through the synchronous belt 18 and the two synchronous wheels 17. When the driving wheel 15 rotates, the driven wheel 16 rotates with the driving wheel 15. When the lining cloth 35 reaches the contact point between the driving wheel 15 and the driven wheel 16, it is clamped by the driving wheel 15 and the driven wheel 16. The driving wheel 15 and the driven wheel 16 rotate at the same time to drive the lining cloth 35 to move forward, thereby realizing the transportation of the lining cloth 35.

[0090] Embodiment 5

[0091] like Figure 8 As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment, except that the cutter mechanism 8 includes a movable knife 27, a fixed knife 28 and a vertically arranged cutter cylinder 29, the fixed knife 28 is mounted on the frame 1, a connecting block 30 is fixed on the piston of the cutter cylinder 29, the movable knife 27 is mounted on the connecting block 30, and the movable knife 27 and the fixed knife 28 can mesh with each other.

[0092] In this structure, the cutter cylinder 29 drives the movable knife 27 mounted on the connecting block 30 to move up and down. When the movable knife 27 and the fixed knife 28 are engaged, the lining cloth 35 is sheared.

[0093] The present invention also provides a trouser loop machine, which comprises any one of the above-mentioned lining devices.

[0094] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A lining device for a trouser loop machine, the lining device comprising a frame (1), characterized in that: The frame (1) is provided with a lining strip conveying mechanism (2) for conveying lining strips and a lining blowing component (3), the lining blowing component (3) comprising an air blowing pipe (6), the air blowing pipe (6) being provided with a plurality of air holes for blowing air onto the lining cloth (35), and the frame (1) is also provided with a cutting mechanism (8) for cutting the lining cloth (35).

2. A lining device for a trouser loop machine according to claim 1, characterized in that: The lining blowing component (3) comprises a mounting block (4), and the air blowing pipe (6) is plugged into the mounting block (4).

3. The lining device of a trouser loop machine according to claim 2, characterized in that: The mounting block (4) is provided with a plurality of screw holes (7) for mounting bolts.

4. The lining device for a trouser loop machine according to claim 1, characterized in that: The lining blowing component (3) further comprises a needle plate (9) and a guide block (10), wherein the guide block (10) is mounted above the needle plate (9), and the bottom of the guide block (10) is provided with a clearance cavity (11) for the lining cloth to pass through, and the air hole of the air blowing pipe (6) is opposite to the clearance cavity (11) and is in communication with the clearance cavity (11).

5. The lining device for a trouser loop machine according to claim 4, characterized in that: The inner end of the cavity wall of the clearance cavity (11) has an inclined surface (36), and the inclined surface (36) gradually slopes upward from the outside to the inside.

6. The lining device for a trouser loop machine according to claim 4, characterized in that: A stopper (12) is installed at the front end of the needle plate (9), and the stopper (12) extends from the front of the needle plate (9) toward the top of the needle plate (9).

7. A lining device for a trouser loop machine according to any one of claims 1 to 6, characterized in that: The lining strip conveying mechanism (2) comprises a motor (13) and a rotatable roller (14); the motor (13) and the roller (14) are arranged on the frame (1); and the output shaft of the motor (13) is connected to the roller (14).

8. A lining device for a trouser loop machine according to claim 1, 2 or 3, characterized in that: The lining strip conveying mechanism (2) comprises a motor (13), a driving wheel (15) and a driven wheel (16) both of which are capable of rotating, wherein the driven wheel (16) abuts against the driving wheel (15), the motor (13) is arranged on a frame (1), and an output shaft of the motor (13) is connected to the driving wheel (15).

9. A lining device for a trouser loop machine according to claim 1, 2 or 3, characterized in that: The lining strip conveying mechanism (2) comprises a motor (13), a driving wheel (15) and a driven wheel (16) both of which are capable of rotating, wherein the driven wheel (16) abuts against the driving wheel (15), the motor (13) is arranged on a frame (1), and synchronous wheels (17) are respectively arranged on the output shaft of the motor (13) and the end of the driving wheel (15), and a synchronous belt (18) is connected between the synchronous wheels (17).

10. A lining device for a trouser loop machine according to claim 1, 2 or 3, characterized in that: The lining strip conveying mechanism (2) comprises a motor (13), a rotatable roller (14), a driving wheel (15) and a driven wheel (16), wherein the driven wheel (16) abuts against the driving wheel (15), the roller (14) is located in front of the driving wheel (15), the motor (13) is arranged on a frame (1), a pulley (19) is mounted on the output shaft of the motor (13), a pulley (20) is mounted on the end of the driving wheel (15), and the roller (1) is arranged on the output shaft of the motor (13). A pulley three (21) is installed on the end of the frame (14), 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), the pulley one (19), the pulley two (20), the pulley three (21) and the idler wheel (22) are connected to a synchronous belt (18), the pulley one (19), the pulley three (21) and the idler wheel (22) are located on the inner side of the synchronous belt (18), and the pulley two (20) is located on the outer side of the synchronous belt (18).

11. The lining device for a trouser loop machine according to claim 7, characterized in that: The frame (1) is provided with a pressure plate (23) which can move up and down, a mounting seat (24) is fixed on the pressure plate (23), the driven wheel (16) is rotatably mounted on the mounting seat (24), a screw (25) is threadedly connected to the pressure plate (23), a spring (26) is sleeved on the screw (25), the spring (26) is in a compressed state and enables the driven wheel (16) to abut against the driving wheel (15).

12. A lining device for a trouser loop machine according to claim 1, 2 or 3, characterized in that: The cutter mechanism (8) comprises a movable knife (27), a fixed knife (28) and a vertically arranged cutter cylinder (29); the fixed knife (28) is mounted on the frame (1); the bottom of the cutter cylinder (29) is hinged on the frame (1); a connecting block (30) is hinged on the piston rod of the cutter cylinder (29); a cutter shaft (31) is fixed on the connecting block (30); the cutter shaft (31) is rotatably mounted on the frame (1); the movable knife (27) is mounted on the cutter shaft (31); and the movable knife (27) and the fixed knife (28) are capable of meshing with each other.

13. The lining device for a trouser loop machine according to claim 9, characterized in that: The cutter shaft (31) is provided with an elastic block (32) which can move leftward and rightward and can be positioned on the cutter shaft (31); a second spring (33) in a compressed state is sleeved on the cutter shaft (31); one end of the second spring (33) abuts against the frame (1), and the other end of the second spring (33) abuts against the elastic block (32).

14. A lining device for a trouser loop machine according to claim 1, 2 or 3, characterized in that: The cutter mechanism (8) comprises a movable knife (27), a fixed knife (28) and a vertically arranged cutter cylinder (29); the fixed knife (28) is mounted on the frame (1); a connecting block (30) is fixed on the piston of the cutter cylinder (29); the movable knife (27) is mounted on the connecting block (30); and the movable knife (27) and the fixed knife (28) are capable of meshing with each other.

15. A trouser loop machine, characterized in that: The trouser loop machine comprises a lining device as described in any one of claims 1-14.

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