Cloth transfer device of double-head automatic sewing machine

Abstract

The utility model discloses a cloth transfer device of a double-machine-head automatic sewing machine, which comprises a machine frame main body, a first X-axis and Y-axis moving assembly and a second X-axis and Y-axis moving assembly, and the first X-axis and Y-axis moving assembly and the second X-axis and Y-axis moving assembly are symmetrically arranged along the central line of the machine frame main body. A second large pressing plate assembly is arranged on the second XY-axis moving assembly in a sliding mode. The first large pressing plate assembly comprises a mounting base and a pressing plate body, the first XY-axis moving assembly comprises a first sliding rail and a second sliding rail, the two ends of the bottom face of the mounting base are slidably connected with the first sliding rail and the second sliding rail respectively, and a first transmission belt and a transmission rod are arranged between the first sliding rail and the second sliding rail. According to the cloth transferring device of the double-machine-head automatic sewing machine, the stroke lead is designed according to the folding time, the moving assembly and the pressing plate assembly are reasonable in structural design and matched with each other, it is guaranteed that cloth is conveyed on the left side and the right side in sequence, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of automatic sewing technology, and in particular to a fabric transfer device for a double-head automatic sewing machine. Background Technology

[0002] An automatic sewing machine is a computer-controlled sewing machine equipped with an automatic monitoring system. It automatically starts sewing, sews along a set track, stops sewing, and cuts threads to complete a certain sewing process.

[0003] A dual-head automatic sewing machine allows one operator to place the fabric, and the machine automatically completes the folding process. The folded fabric is then conveyed left or right on the machine via a fabric transfer device for sewing, improving efficiency. However, existing dual-head automatic sewing machines have a larger footprint compared to single-head machines. The challenge lies in optimizing the spatial structure of the fabric transfer device to achieve a shorter travel distance, while ensuring all machine components operate normally. Utility Model Content

[0004] The purpose of this invention is to provide a fabric transfer device for a double-head automatic sewing machine. The travel guide is designed based on the folding time. The moving component and the pressure plate component have reasonable structural design and cooperate with each other to ensure that the fabric is transferred sequentially from the left and right sides. This improves work efficiency while occupying a small area and is highly practical.

[0005] To achieve the above objectives, this utility model provides a fabric transfer device for a double-head automatic sewing machine, including a frame body and a first XY axis moving assembly and a second XY axis moving assembly symmetrically arranged along the center line of the frame body. A first large pressure plate assembly is slidably arranged on the first XY axis moving assembly, and a second large pressure plate assembly is slidably arranged on the second XY axis moving assembly.

[0006] The first large pressure plate assembly includes a mounting base and a pressure plate body. The first XY axis moving assembly includes a first slide rail and a second slide rail. The two ends of the bottom surface of the mounting base are slidably connected to the first slide rail and the second slide rail, respectively. A first transmission belt and a transmission rod are provided between the first slide rail and the second slide rail. A first driven rack is provided on the bottom surface of the mounting base and is slidably connected to the first transmission belt. A driven wheel is provided on the top surface of the mounting base near the first slide rail. The driven wheel is slidably connected to the transmission rod.

[0007] Preferably, a first drive motor is provided at one end of the first slide rail away from the center line of the frame body, and the first drive motor is rotatably connected to the transmission rod through a transmission assembly;

[0008] A second drive motor is provided at one end of the second slide rail away from the center line of the frame body, and the second drive motor is rotatably connected to the first transmission belt through a transmission assembly.

[0009] Preferably, the outer ring of the driven wheel is provided with a second transmission belt, and the two sides of the mounting base are respectively provided with a third slide rail and a fourth slide rail. The pressure plate body is slidably connected to the third slide rail through a connecting plate, and the bottom surface of the connecting plate is slidably connected to the second transmission belt through a second driven rack.

[0010] Preferably, a fixed wheel is provided at one end of the top surface of the mounting base near the second slide rail, and the outer ring of the fixed wheel is rotatably connected to the second transmission belt.

[0011] Preferably, the pressure plate body includes a U-shaped plate and a rectangular plate disposed within the U-shaped plate. The open end of the U-shaped plate is slidably connected to the connecting plate via a lifting module, and the rectangular plate is movably connected to the connecting plate via a driving cylinder.

[0012] Preferably, the travel lead of the first transmission belt is 200 mm.

[0013] Therefore, the present invention employs the above-mentioned fabric transfer device for a double-head automatic sewing machine, and the beneficial effects are as follows:

[0014] This invention designs the travel guide based on the folding time, and the moving component and pressure plate component have a reasonable structural design that works together to ensure that the fabric is conveyed sequentially from both sides. Compared with existing single-head automatic sewing machines, its working efficiency is increased by 70%. In addition, while improving working efficiency, it also occupies a smaller area and is highly practical.

[0015] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the fabric transfer device for a double-head automatic sewing machine according to this utility model;

[0017] Figure 2 This is an overall schematic diagram of an embodiment of a fabric transfer device for a double-head automatic sewing machine according to this utility model;

[0018] Figure 3 This is a schematic diagram from another perspective of an embodiment of the fabric transfer device of a double-head automatic sewing machine according to this utility model.

[0019] Figure Labels

[0020] 1. Main frame; 2. First XY axis moving assembly; 3. Second XY axis moving assembly; 4. First large pressure plate assembly; 5. Second large pressure plate assembly; 6. Folding device; 7. Mounting base; 8. First slide rail; 9. Second slide rail; 10. First transmission belt; 11. Transmission rod; 12. First driven rack; 13. Driven wheel; 14. First drive motor; 15. Transmission assembly; 16. Second drive motor; 17. Second transmission belt; 18. Third slide rail; 19. Fourth slide rail; 20. Connecting plate; 21. Drive cylinder; 22. Fixed wheel; 23. U-shaped plate; 24. Rectangular plate; 25. Lifting module. Detailed Implementation

[0021] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0022] 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.

[0023] Example 1

[0024] As shown in the figure, a fabric transfer device for a double-head automatic sewing machine includes a frame body 1 and a first XY-axis moving assembly 2 and a second XY-axis moving assembly 3 symmetrically arranged along the centerline of the frame body 1. A first large pressure plate assembly 4 is slidably mounted on the first XY-axis moving assembly 2, and a second large pressure plate assembly 5 is slidably mounted on the second XY-axis moving assembly 3. A folding device 6 for the operator to feed the material is located at the centerline of the frame body 1. In this embodiment, the folding time of the folding device 6 is 2 seconds per fold. The spatial travel of the first large pressure plate assembly 4 and the second large pressure plate assembly 5 is 250×250mm, and the pressing time of the first large pressure plate assembly 4 and the second large pressure plate assembly 5 is 1-1.5 seconds per fold. The overall structure is simple in design and reduces the floor space required.

[0025] The first large pressure plate assembly 4 and the second large pressure plate assembly 5 have the same structure, and the first XY axis moving assembly 2 and the second XY axis moving assembly 3 have the same structure. The first large pressure plate assembly 4 and the first XY axis moving assembly 2 will be used as examples for description. The first large pressure plate assembly 4 includes a mounting base 7 and a pressure plate body. The first XY axis moving assembly 2 includes a first slide rail 8 and a second slide rail 9. The two ends of the bottom surface of the mounting base 7 are slidably connected to the first slide rail 8 and the second slide rail 9, respectively. A first transmission belt 10 and a transmission rod 11 are arranged between the first slide rail 8 and the second slide rail 9. A first driven rack 12 is arranged on the bottom surface of the mounting base 7 and is slidably connected to the first transmission belt 10. A driven wheel 13 is arranged on the top surface of the mounting base 7 near the first slide rail 8. The driven wheel 13 is slidably connected to the transmission rod 11.

[0026] A first drive motor 14 is installed at the end of the first slide rail 8 furthest from the centerline of the frame body 1. The first drive motor 14 is rotatably connected to the transmission rod 11 via a transmission assembly 15. A second drive motor 16 is installed at the end of the second slide rail 9 furthest from the centerline of the frame body 1. The second drive motor 16 is rotatably connected to the first transmission belt 10 via a transmission assembly 15. In this embodiment, both the first drive motor 14 and the second drive motor 16 are DC motors with a speed of 3200 rpm. In addition, the lead of the first transmission belt 10 is 200 mm, and the effective stroke is 850 mm.

[0027] A second transmission belt 17 is provided on the outer ring of the driven wheel 13. A third slide rail 18 and a fourth slide rail 19 are respectively provided on both sides of the mounting base 7. The pressure plate body is slidably connected to the third slide rail 18 or the fourth slide rail 19 through the connecting plate 20. The bottom surface of the connecting plate 20 is slidably connected to the second transmission belt 17 through the second driven rack (the second driven rack has the same structure as the first driven rack 12). A fixed wheel 22 is provided on the top surface of the mounting base 7 near the second slide rail 9. The outer ring of the fixed wheel 22 is rotatably connected to the second transmission belt 17. The pressure plate body includes a U-shaped plate 23 and a rectangular plate 24 disposed within the U-shaped plate 23. The open end of the U-shaped plate 23 is slidably connected to the connecting plate 20 through the lifting module 25. The rectangular plate 24 is movably connected to the connecting plate 20 through the driving cylinder 21. The whole achieves precise reciprocating movement of the pressure plate body along the XY axis.

[0028] In actual use, the workflow is as follows:

[0029] S1. Place the fabric under the folding device 6 to complete the folding, and time it for 2.0 seconds (the time can be adjusted appropriately according to the operator's proficiency).

[0030] S2. At the same time, the first drive motor 14 drives the first large pressure plate assembly 4 to move a preset distance along the X-axis to the center line position, and the second drive motor 16 drives the connecting plate 20, that is, drives the pressure plate body to move a preset distance along the Y-axis, and the timing is 1.5s.

[0031] S3. The main body of the pressure plate presses down, driving the folded fabric to move to the designated position for sewing according to the preset stroke, timing 1.0s;

[0032] S4. Place the next piece of fabric under the folding device 6 to complete the folding process, timing 2.0s;

[0033] S5. At the same time, the first drive motor 14 drives the second large pressure plate assembly 5 to move a preset distance along the X-axis to the center line position, and the second drive motor 16 drives the connecting plate 20, that is, drives the pressure plate body to move a preset distance along the Y-axis, timing 1.5s.

[0034] S6. Press down the main body of the pressure plate, which will move the folded fabric to the designated position for sewing according to the preset stroke, and time it for 1.0s; repeat S1-S6 above.

[0035] After multiple tests and taking the average value, this embodiment shows a 70% increase in productivity compared to existing single-head automatic sewing machines.

[0036] Therefore, this utility model adopts the above-mentioned fabric transfer device for a double-head automatic sewing machine. The travel guide is designed according to the folding time. The moving component and the pressure plate component have reasonable structural design and cooperate with each other to ensure that the fabric is transferred sequentially from the left and right sides. This improves work efficiency while occupying a small area and has high practicality.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although the utility model 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 solution of this utility model, and these modifications or equivalent substitutions cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of this utility model.

Claims

1. A fabric transfer device for a double-head automatic sewing machine, characterized in that: It includes a frame body and a first XY axis moving assembly and a second XY axis moving assembly symmetrically arranged along the centerline of the frame body. A first large pressure plate assembly is slidably arranged on the first XY axis moving assembly, and a second large pressure plate assembly is slidably arranged on the second XY axis moving assembly. The first large pressure plate assembly includes a mounting base and a pressure plate body. The first XY axis moving assembly includes a first slide rail and a second slide rail. The two ends of the bottom surface of the mounting base are slidably connected to the first slide rail and the second slide rail, respectively. A first transmission belt and a transmission rod are provided between the first slide rail and the second slide rail. A first driven rack is provided on the bottom surface of the mounting base and is slidably connected to the first transmission belt. A driven wheel is provided on the top surface of the mounting base near the first slide rail. The driven wheel is slidably connected to the transmission rod.

2. The fabric transfer device for a double-head automatic sewing machine according to claim 1, characterized in that: A first drive motor is provided at one end of the first slide rail away from the center line of the frame body, and the first drive motor is rotatably connected to the transmission rod through a transmission assembly. A second drive motor is provided at one end of the second slide rail away from the center line of the frame body, and the second drive motor is rotatably connected to the first transmission belt through a transmission assembly.

3. The fabric transfer device for a double-head automatic sewing machine according to claim 2, characterized in that: The outer ring of the driven wheel is provided with a second transmission belt, and the two sides of the mounting base are respectively provided with a third slide rail and a fourth slide rail. The pressure plate body is slidably connected to the third slide rail through a connecting plate, and the bottom surface of the connecting plate is slidably connected to the second transmission belt through a second driven rack.

4. The fabric transfer device for a double-head automatic sewing machine according to claim 3, characterized in that: A fixed wheel is provided on one end of the top surface of the mounting base near the second slide rail, and the outer ring of the fixed wheel is rotatably connected to the second transmission belt.

5. The fabric transfer device for a double-head automatic sewing machine according to claim 4, characterized in that: The pressure plate body includes a U-shaped plate and a rectangular plate disposed within the U-shaped plate. The open end of the U-shaped plate is slidably connected to the connecting plate through a lifting module, and the rectangular plate is movably connected to the connecting plate through a driving cylinder.

6. The fabric transfer device for a double-head automatic sewing machine according to claim 1, characterized in that: The travel lead of the first transmission belt is 200mm.

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