Automatic collar strip sewing device and using method thereof

Abstract

The invention belongs to the technical field of automatic sewing, and particularly discloses an automatic collar strip sewing device and a using method thereof.The automatic collar strip sewing device comprises a rack, a machine head and a discharging platform, and the discharging platform is arranged on the side, close to the machine head, of the rack; a cloth loosening assembly, a cloth conveying assembly, a cloth cutting assembly, a cloth pulling assembly, a cloth moving assembly, a sewing pressing plate and a material collecting assembly are sequentially arranged on the machine frame, and the material collecting assembly is arranged over the material placing platform. According to the automatic collar strip sewing device and the using method thereof, materials are loosened in advance through the motor and enter the material groove, the loosening and tightening states of the cloth are sensed through the sensor, the cloth enters the cutter set along the material groove, cutting, folding, clamping, sewing and automatic collecting are conducted according to the set length, the automation degree is high, the machining error is reduced, and the production efficiency is improved. The finished product qualification rate is improved.

Description

Technical Field

[0001] This invention relates to the field of automatic sewing technology, and in particular to an automatic collar strip sewing device and its method of use. Background Technology

[0002] A round neck strip is used in the production of garments such as T-shirts and cuffs. A round neck strip of a specific size is produced from a roll of fabric through processes such as loosening, feeding, cutting, folding, and sewing. In existing technologies, the roll of fabric used in automatic neck strip sewing devices is generally under excessive tension. During feeding and folding, the feeding length cannot be accurately controlled, and the pulling and cutting of the fabric cannot be accurately measured. This results in a significant error between the fabric length and the preset value during subsequent cutting and sewing, leading to substandard processing quality. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic collar sewing device and its usage method. The device uses a motor to pre-loosen the fabric, which then enters the feed trough. A sensor detects the looseness and tension of the fabric, causing it to enter the cutting assembly along the feed trough. The fabric is then cut to a set length, folded, clamped, sewn, and automatically collected. This method has a high degree of automation, reduces processing errors, and improves the finished product qualification rate.

[0004] To achieve the above objectives, the present invention provides an automatic collar sewing device, including a frame, a sewing head, and a feeding platform. The feeding platform is disposed on one side of the frame near the sewing head. The frame is sequentially provided with a fabric loosening component, a fabric conveying component, a fabric cutting component, a fabric pulling component, a fabric shifting component, a sewing press plate, and a material taking-up component. The material taking-up component is disposed directly above the feeding platform. The fabric transfer assembly is disposed on one side of the frame near the feeding platform along the X-axis direction, the fabric pulling assembly is disposed on the side wall of the frame near the feeding platform, the centers of the fabric loosening assembly, the fabric conveying assembly and the fabric cutting assembly coincide along the Y-axis direction, and the fabric loosening assembly, the fabric conveying assembly and the fabric cutting assembly are all disposed on the other side of the frame away from the feeding platform.

[0005] The fabric loosening assembly includes a first frame, a material tray is provided on one side of the upper surface of the first frame, the material tray is fixedly connected to the first frame through an extension frame, a first U-shaped limiting wire is provided at the bottom of the extension frame, and the two ends of the first U-shaped limiting wire are connected to the extension frame through a first sensing element.

[0006] Preferably, the number of the material trays is at least one, the first U-shaped limiting wire is provided in a one-to-one correspondence with the material trays, and the bottom of the material tray is connected to a first driving element.

[0007] Preferably, the first sensing element includes a sensor, a sensing plate, and a rotating shaft. The rotating shaft is rotatably connected to the end of the U-shaped limiting wire. The sensor is disposed on the upper surface of the first frame and is electrically connected to the rotating shaft through the sensing plate.

[0008] Preferably, the fabric conveying assembly is located on the other side of the upper surface of the first frame, away from the material tray.

[0009] Preferably, the fabric conveying assembly includes a mounting base, in which a drive roller and an auxiliary roller are disposed above the drive roller are provided. A first guide rod is provided on one side of the mounting base, and a plurality of first limiting sleeves are sleeved on the first guide rod. A material support plate is provided directly below the first guide rod. A second U-shaped limiting wire is provided on the other side of the mounting base, and the two ends of the second U-shaped limiting wire are connected to the mounting base through a second sensing element.

[0010] Preferably, the outer wall of the mounting base is provided with a second driving element, the driving roller passes through the mounting base and is connected to a first pulley, the driving end of the second driving element is provided with a second pulley, and the first pulley is connected to the second pulley via a conveyor belt.

[0011] Preferably, the fabric cutting assembly includes a cutter, and the feed side of the cutter is sequentially provided with a first limiting block, a limiting roller, a second limiting block, and a second guide rod. A plurality of second limiting sleeves are sleeved on the second guide rod, and the second limiting block and the first limiting block correspond one-to-one with the second limiting sleeve.

[0012] Preferably, the cutter is connected to a third driving element, and the limiting roller is connected to a fourth driving element, the fourth driving element having the same structure as the second driving element.

[0013] Preferably, the machine head is electrically connected to a control system, and the control system is electrically connected to the fabric loosening assembly, the fabric conveying assembly, the fabric cutting assembly, the fabric pulling assembly, the fabric shifting assembly, the sewing pressure plate, and the material receiving assembly.

[0014] The present invention also provides a method of using an automatic collar sewing device, comprising the following steps: S1. The fabric raw material is stored on the tray, and the tray is rotated by the first drive element at the bottom of the tray to release the fabric. S2. The fabric released from the tray is placed on the first U-shaped limiting wire. The fabric hangs down in the gap between the first frame and the first guide rod. The released fabric is conveyed to the first limiting sleeve according to the set length. The first limiting sleeve fixes the positional distance between the two fabrics. The second driving element drives the second pulley, thereby driving the active roller to rotate, realizing the forward conveying of the fabric along the material support plate. At the same time, the fabric hanging down between the fabric release component and the fabric conveying component will gradually shorten, thereby pulling the first U-shaped limiting wire to drive the rotating shaft to rotate. The sensing plate rotates synchronously to the sensor. After the sensor detects the sensing plate, it transmits the signal to the control system, causing the first driving element to rotate and continue to release the fabric, so that the fabric between the fabric release component and the fabric conveying component always remains hanging down, avoiding the fabric from being overly tense. S3. The fabric is conveyed from the active roller and the auxiliary roller to the second limiting sleeve. The second limiting sleeve ensures that the distance between the two pieces of fabric is fixed. Before entering the second limiting sleeve, the second U-shaped limiting wire transmits the sensor signal to the control system, which adjusts the rotation speed of the second driving element so that the fabric is always conveyed at a constant speed between the active roller and the auxiliary roller. It continues to pass through the second limiting block. The bottom of the second limiting block has a notch. With the thickness of the fabric, the fabric ensures the distance while preventing the fabric from curling when it passes through the second limiting block. The fourth driving element drives the limiting roller to rotate and conveys the fabric to the cutter. Before entering the cutter, the first limiting block further ensures that the distance between the two pieces of fabric is fixed. S4. After the fabric is conveyed to the set length, the fabric pulling assembly clamps one end of the fabric and opens. At the same time, the fabric cutting assembly simultaneously conveys the fabric forward, so that the fabric is pulled out stably without tension. The third drive element drives the cutter to cut the fabric. S5. The fabric pulling component resets, allowing the two ends of the fabric to overlap. The fabric pulling component releases the fabric and opens again. The fabric moving component presses down the fabric and moves it to the left to the sewing presser plate. S6. The sewing presser moves the fabric to the machine head for sewing, and the take-up assembly moves the fabric onto the feeding platform to complete the take-up.

[0015] Therefore, the present invention employs the above-mentioned automatic collar sewing device and its method of use, and the beneficial effects are as follows: The material is pre-loosened by a motor and enters the feed trough. Sensors detect the slack and tension of the fabric, causing it to flow smoothly into the cutting assembly. The fabric is then cut to a set length, folded, clamped, sewn, and automatically collected. This process is highly automated, reduces processing errors, and improves the yield of qualified finished products.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of an embodiment of an automatic collar sewing device and its usage method according to the present invention; Figure 2 This is an exploded view of an embodiment of an automatic collar sewing device and its usage method according to the present invention; Figure 3 This is an exploded view of the fabric loosening component of an embodiment of an automatic collar sewing device and its usage method according to the present invention; Figure 4 This is an exploded view of the fabric conveying component of an embodiment of an automatic collar sewing device and its usage method according to the present invention; Figure 5 This is an exploded view of the fabric cutting component of an embodiment of an automatic collar sewing device and its usage method according to the present invention.

[0018] Figure Labels 1. Frame; 2. Machine head; 3. Feeding platform; 4. Fabric loosening assembly; 5. Fabric conveying assembly; 6. Fabric cutting assembly; 7. Fabric pulling assembly; 8. Fabric shifting assembly; 9. Sewing pressure plate; 10. Receiving assembly; 11. First frame; 12. Material tray; 13. Heightening frame; 14. First U-shaped limit wire; 15. First sensing element; 16. First driving element; 17. Sensor; 18. Sensing plate; 19. Rotating shaft; 20. Mounting base; 21. Drive roller; 22. Auxiliary... 23. Assist roller; 24. First guide rod; 25. First limiting sleeve; 26. Material support plate; 27. Second U-shaped limiting wire; 28. Second sensing element; 29. ​​Second driving element; 30. First pulley; 31. Second pulley; 32. Conveyor belt; 33. Cutter; 34. First limiting block; 35. Limiting roller; 36. Second limiting block; 37. Second limiting sleeve; 38. Third driving element; 39. Fourth driving element; 40. Control system. Detailed Implementation

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0021] Example 1 like Figures 1-5As shown, an automatic collar sewing device includes a frame 1, a sewing head 2, and a feeding platform 3. The feeding platform 3 is located on one side of the frame 1 near the sewing head 2. The frame 1 is sequentially equipped with a fabric loosening assembly 4, a fabric conveying assembly 5, a fabric cutting assembly 6, a fabric pulling assembly 7, a fabric shifting assembly 8, a sewing press plate 9, and a receiving assembly 10. The receiving assembly 10 is located directly above the feeding platform 3. The fabric shifting assembly 8 is located along the X-axis on one side of the frame 1 near the feeding platform 3. The fabric pulling assembly 7 is located on the side wall of the frame 1 near the feeding platform 3. The centers of the fabric loosening assembly 4, the fabric conveying assembly 5, and the fabric cutting assembly 6 coincide along the Y-axis. All three components are located on the other side of the frame 1 away from the feeding platform 3.

[0022] The fabric loosening assembly 4 includes a first frame 11. A material tray 12 is disposed on one side of the upper surface of the first frame 11. The material tray 12 is fixedly connected to the first frame 11 via a lifting frame 13. A first U-shaped limiting wire 14 is disposed at the bottom of the lifting frame 13. The two ends of the first U-shaped limiting wire 14 are connected to the lifting frame 13 via a first sensing element 15. The number of material trays 12 is at least one; in this embodiment, two material trays 12 are provided. The first U-shaped limiting wire 14 is disposed in a one-to-one correspondence with the material tray 12. A first driving element 16 is connected to the bottom of the material tray 12. The first sensing element 15 includes a sensor 17, a sensing plate 18, and a rotating shaft 19. The rotating shaft 19 is rotatably connected to the end of the first U-shaped limiting wire 14. The sensor 17 is disposed on the upper surface of the first frame 11 and is electrically connected to the rotating shaft 19 via the sensing plate 18.

[0023] The fabric conveying assembly 5 is located on the other side of the upper surface of the first frame 11, away from the material tray 12. The fabric conveying assembly 5 includes a mounting base 20, within which is a drive roller 21 and an auxiliary roller 22 positioned above the drive roller 21. A first guide rod 23 is located on one side of the mounting base 20, with several first limiting sleeves 24 fitted onto it. A material support plate 25 is located directly below the first guide rod 23. A second U-shaped limiting wire 26 is located on the other side of the mounting base 20, with both ends of the second U-shaped limiting wire 26 connected to the mounting base 20 via a second sensing element 27. The second sensing element 27 has the same structure as the first sensing element 15. A second driving element 28 is located on the outer wall of the mounting base 20. The drive roller 21 passes through the mounting base 20 and is connected to a first pulley 29. A second pulley 30 is located at the driving end of the second driving element 28, and the first pulley 29 is connected to the second pulley 30 via a conveyor belt 31.

[0024] The fabric cutting assembly 6 includes a cutter 32. On the feed side of the cutter 32, a first limiting block 33, a limiting roller 34, a second limiting block 35, and a second guide rod 36 are sequentially arranged. Several second limiting sleeves 37 are fitted onto the second guide rod 36. Each second limiting block 35 and the first limiting block 33 corresponds one-to-one with a second limiting sleeve 37. The cutter 32 is connected to a third driving element 38, and the limiting roller 34 is connected to a fourth driving element 39. The fourth driving element 39 has the same structure as the second driving element.

[0025] The sewing machine head 2 is electrically connected to a control system 40. The control system 40 is electrically connected to the fabric release assembly 4, fabric conveying assembly 5, fabric cutting assembly 6, fabric pulling assembly 7, fabric transferring assembly 8, sewing pressure plate 9, and take-up assembly 10. The fabric pulling assembly 7 is used to perform the fabric folding process. The fabric transferring assembly 8 is used to transfer the folded fabric to the sewing pressure plate 9. The sewing pressure plate 9 is used to transfer the folded fabric to the sewing machine head 2. The sewing machine head 2 is used for sewing the fabric to obtain a round neck strip. The take-up assembly 10 is used to transfer the round neck strip to the feeding platform 3. The control system 40 is used for generating, storing, and executing control signals.

[0026] Its usage method includes the following steps: S1. The raw fabric is stored on the tray 12. The tray 12 is rotated by the first driving element 16 at the bottom of the tray 12 to release the fabric. S2. The fabric released from the tray 12 is placed on the first U-shaped limiting wire 14. The fabric hangs down in the gap between the first frame 11 and the first guide rod 23. The released fabric is conveyed to the first limiting sleeve 24 according to the set length. The first limiting sleeve 24 fixes the positional distance between the two fabrics. The second driving element 28 drives the second pulley 30, thereby driving the active roller 21 to rotate, realizing the forward conveying of the fabric along the material support plate 25. At the same time, the fabric hanging down between the fabric release component 4 and the fabric conveying component 5 will gradually shorten, thereby pulling the first U-shaped limiting wire 14 to drive the rotating shaft 19 to rotate. The sensing plate 18 rotates synchronously to the sensor 17. After the sensor 17 senses the sensing plate 18, it transmits the signal to the control system 40, causing the first driving element 16 to rotate and continue to release the fabric, so that the fabric between the fabric release component 4 and the fabric conveying component 5 always remains hanging down, avoiding the fabric from being overly tense. S3. The fabric is conveyed from the active roller 21 and the auxiliary roller 22 to the second limiting sleeve 37. The second limiting sleeve 37 ensures that the distance between the two pieces of fabric is fixed. Before entering the second limiting sleeve 37, the second U-shaped limiting wire 26 transmits the signal of the sensor 17 to the control system 40, and adjusts the rotation speed of the second driving element 28 so that the fabric between the active roller 21 and the auxiliary roller 22 is always conveyed at a uniform speed. It continues to pass through the second limiting block 35. The second limiting block 35 has a notch at the bottom. With the thickness of the fabric, the fabric ensures the distance while preventing the fabric from curling when passing through the second limiting block 35. The fourth driving element 39 drives the limiting roller 34 to rotate and conveys the fabric to the cutter 32. Before entering the cutter 32, the first limiting block 33 further ensures that the distance between the two pieces of fabric is fixed. S4. After the fabric is conveyed to the set length, the fabric pulling assembly 7 clamps one end of the fabric and opens. At the same time, the fabric cutting assembly 6 simultaneously conveys the fabric forward, so that the fabric is pulled out stably without tension. The third drive element 38 drives the cutter 32 to cut the fabric. S5. The fabric pulling component 7 is reset so that the two ends of the fabric overlap. The fabric pulling component 7 releases the fabric and opens it again. The fabric moving component 8 presses down the fabric and moves it to the left to the sewing presser plate 9. S6. The sewing press plate 9 moves the fabric to the machine head 2 for sewing, and the take-up assembly 10 moves the fabric onto the feeding platform 3 to complete the take-up.

[0027] Therefore, the present invention adopts the above-mentioned automatic collar sewing device and its usage method. The material is pre-loosened by the motor and enters the material trough. Then, the sensor senses the looseness and tension of the fabric and causes the fabric to enter the cutting group along the material trough. The fabric is cut according to the set length, folded, clamped, sewn, and automatically collected. The degree of automation is high, the processing error is reduced, and the finished product qualification rate is improved.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. An automatic collar sewing device, characterized in that: The machine includes a frame, a machine head, and a feeding platform. The feeding platform is located on one side of the frame near the machine head. The frame is sequentially equipped with a fabric loosening assembly, a fabric conveying assembly, a fabric cutting assembly, a fabric pulling assembly, a fabric shifting assembly, a sewing press plate, and a material receiving assembly. The material receiving assembly is located directly above the feeding platform. The fabric transfer assembly is disposed on one side of the frame near the feeding platform along the X-axis direction, the fabric pulling assembly is disposed on the side wall of the frame near the feeding platform, the centers of the fabric loosening assembly, the fabric conveying assembly and the fabric cutting assembly coincide along the Y-axis direction, and the fabric loosening assembly, the fabric conveying assembly and the fabric cutting assembly are all disposed on the other side of the frame away from the feeding platform.

2. The automatic collar sewing device according to claim 1, characterized in that: The fabric loosening assembly includes a first frame, a material tray is provided on one side of the upper surface of the first frame, the material tray is fixedly connected to the first frame through an extension frame, a first U-shaped limiting wire is provided at the bottom of the extension frame, and the two ends of the first U-shaped limiting wire are connected to the extension frame through a first sensing element.

3. The automatic collar sewing device according to claim 2, characterized in that: The number of the material trays is at least one, the first U-shaped limiting wire is set in a one-to-one correspondence with the material trays, and the bottom of the material trays is connected to a first driving element.

4. An automatic collar sewing device according to claim 2, characterized in that: The first sensing element includes a sensor, a sensing plate, and a rotating shaft. The rotating shaft is rotatably connected to the end of the U-shaped limiting wire. The sensor is disposed on the upper surface of the first frame and is electrically connected to the rotating shaft through the sensing plate.

5. An automatic collar sewing device according to claim 1, characterized in that: The fabric conveying assembly includes a mounting base, in which a drive roller and an auxiliary roller are disposed above the drive roller. A first guide rod is disposed on one side of the mounting base, and a plurality of first limiting sleeves are sleeved on the first guide rod. A material support plate is disposed directly below the first guide rod. A second U-shaped limiting wire is disposed on the other side of the mounting base, and the two ends of the second U-shaped limiting wire are connected to the mounting base through a second sensing element.

6. An automatic collar sewing device according to claim 5, characterized in that: The outer wall of the mounting base is provided with a second driving element, the driving roller passes through the mounting base and is connected to a first pulley, the driving end of the second driving element is provided with a second pulley, and the first pulley is connected to the second pulley via a conveyor belt.

7. An automatic collar sewing device according to claim 1, characterized in that: The fabric cutting assembly includes a cutter. The feed side of the cutter is sequentially provided with a first limiting block, a limiting roller, a second limiting block, and a second guide rod. A plurality of second limiting sleeves are sleeved on the second guide rod. The second limiting block and the first limiting block correspond one-to-one with the second limiting sleeve.

8. An automatic collar sewing device according to claim 1, characterized in that: The cutter is connected to a third driving element, and the limiting roller is connected to a fourth driving element. The fourth driving element has the same structure as the second driving element.

9. An automatic collar sewing device according to claim 1, characterized in that: The machine head is electrically connected to a control system, which is electrically connected to the fabric loosening assembly, the fabric conveying assembly, the fabric cutting assembly, the fabric pulling assembly, the fabric shifting assembly, the sewing pressure plate, and the material receiving assembly.

10. A method of using an automatic collar sewing device, implemented using the automatic collar sewing device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. The fabric raw material is stored on the tray, and the tray is rotated by the first drive element at the bottom of the tray to release the fabric. S2. The fabric released from the tray is placed on the first U-shaped limiting wire. The fabric hangs down in the gap between the first frame and the first guide rod. The released fabric is conveyed to the first limiting sleeve according to the set length. The second drive element drives the second pulley, thereby driving the active roller to rotate, realizing the forward conveying of the fabric along the material support plate. At the same time, the fabric hanging down between the fabric release component and the fabric conveying component will gradually shorten, thereby pulling the first U-shaped limiting wire to drive the rotating shaft to rotate. The sensing plate rotates synchronously to the sensor. After the sensor senses the sensing plate, it transmits the signal to the control system, causing the first drive element to rotate and continue to release the fabric, so that the fabric between the fabric release component and the fabric conveying component always remains hanging down. S3. The fabric is conveyed from the active roller and the auxiliary roller to the second limiting sleeve. Before entering the second limiting sleeve, the second U-shaped limiting wire transmits the sensor signal to the control system, which adjusts the rotation speed of the second driving element so that the fabric is always conveyed at a constant speed from the active roller and the auxiliary roller. It continues to pass through the second limiting block. The bottom of the second limiting block has a notch, which, in accordance with the thickness of the fabric, prevents the fabric from curling when it passes through the second limiting block. The fourth driving element drives the limiting roller to rotate, conveying the fabric to the cutter. Before entering the cutter, the first limiting block further ensures that the distance between the two pieces of fabric is fixed. S4. After the fabric is conveyed to the set length, the fabric pulling assembly clamps one end of the fabric and opens. At the same time, the fabric cutting assembly simultaneously conveys the fabric forward, so that the fabric is pulled out stably without tension. The third drive element drives the cutter to cut the fabric. S5. The fabric pulling component resets, allowing the two ends of the fabric to overlap. The fabric pulling component releases the fabric and opens again. The fabric moving component presses down the fabric and moves it to the left to the sewing presser plate. S6. The sewing presser moves the fabric to the machine head for sewing, and the take-up assembly moves the fabric onto the feeding platform to complete the take-up.

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