Cloth edge folding device

Abstract

The utility model particularly relates to a cloth edge folding device which comprises a bottom plate, a fixing plate is fixedly installed on one side of the upper surface of the bottom plate, a rectangular groove is formed in the other side of the bottom plate, a sliding rail is fixedly installed in the rectangular groove, a lead screw is rotatably installed on the sliding rail, a servo motor is fixedly installed at the end of the sliding rail, and the servo motor is in transmission connection with the lead screw. The lead screw is in threaded connection with a sliding block, the sliding block is slidably connected to the sliding rail, a supporting cushion block is fixedly installed at the top of the sliding block, U-shaped frames are fixedly installed on the sides, away from each other, of the fixing plate and the supporting cushion block, notches of the two U-shaped frames face each other, and one ends of the bottoms of the two U-shaped frames are connected with the fixing plate and the supporting cushion block correspondingly; and gaps are reserved between one ends of the tops of the two U-shaped frames and the fixing plate and between one ends of the tops of the two U-shaped frames and the supporting cushion block, rectangular holes are formed in the tops of the U-shaped frames, and edge folding cams are rotationally connected into the rectangular holes. According to the folding device, the distance between the fixing plate and the supporting cushion block can be adjusted, and folding operation can be conducted on safety air bag cloth with different widths.

Description

Technical Field

[0001] The utility model relates to the technical field of airbag cloth processing devices, and more specifically, to a cloth hemming device. Background Technique

[0002] As an important part of the vehicle safety system, the manufacturing process of airbags has extremely high requirements for precision and efficiency. Airbags are usually made of airbag cloth raw materials. When using airbag cloth for preparation operations, it is usually necessary to perform a cutting operation on the airbag cloth to cut it into corresponding appropriate sizes.

[0003] In the cutting and processing stage, the hemming treatment of the cut pieces is an essential link, which has the effect of processing the edge parts. In traditional methods, the hemming operation is mostly completed manually, which not only has a large labor intensity and low efficiency, but also is difficult to ensure the precision and consistency of the hemming, affecting the quality and safety of the final product; there are also some hemming devices that can complete the mechanized hemming operation, but they can only hem airbag cloth of a constant size, and the distance between the two hemmed parts on it cannot be adjusted, and it cannot be applied to airbag cloth of different widths. In view of this, we have proposed a cloth hemming device. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a cloth hemming device to solve the defects proposed in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A cloth hemming device includes a bottom plate. On one side of the upper surface of the bottom plate, a fixed plate is fixedly installed. On the other side of the bottom plate relative to the fixed plate, a rectangular groove is also provided. A slide rail is fixedly installed in the rectangular groove. A lead screw is rotatably installed on the slide rail. The end of the slide rail is fixedly installed with a servo motor. The end of the output shaft of the servo motor is in transmission connection with one end of the lead screw. A slider is threadedly connected to the lead screw. The slider is slidably connected to the slide rail in a direction close to or away from the fixed plate. A support pad is fixedly installed on the top of the slider. U-shaped frames are fixedly installed on the sides of the fixed plate and the support pad away from each other. The openings of the two U-shaped frames face each other, and the bottom ends are respectively connected to the fixed plate and the support pad. There is a gap between the top ends of the two U-shaped frames and the fixed plate and the support pad respectively. A rectangular hole is provided at the top of the U-shaped frame. A hemming cam is rotatably connected in the rectangular hole. The bottom edge of the hemming cam is located below the plane where the top surfaces of the fixed plate and the support pad are located.

[0007] Preferably, a cutting pad is fixedly installed on the bottom plate. The top surfaces of the cutting pad, the fixed plate, and the support pad are all on the same horizontal plane.

[0008] Preferably, a chute is arranged in the slide rail along the length direction of the slide rail, and the slider is located in the chute and is slidably connected to the chute.

[0009] Preferably, a plurality of guide rollers are fixedly installed on one side of the fixed plate close to the support pad, a plurality of guide holes adapted to the guide rollers are arranged in the support pad, and the guide rollers are slidably inserted into the corresponding guide holes.

[0010] Preferably, mounting seats are respectively arranged at both ends of the top surface of the bottom plate, two rotating shafts arranged at intervals up and down are rotatably connected to each mounting seat, conveying rollers are arranged on the rotating shafts, a driving motor is arranged on the mounting seat, the output shaft end of the driving motor is connected to one of the rotating shafts, and gears meshing with each other are arranged at the other ends of the two rotating shafts.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By arranging the fixed plate, the support pad and the hemming cam, the present utility model ensures that when in use, as the airbag cloth is conveyed forward, the hemming cam can squeeze the side part of the airbag cloth downward, so that an angle is formed between the side part and the middle main body part of the airbag cloth, completing the hemming operation. And as the airbag cloth is continuously conveyed, continuous and uninterrupted hemming operations can be realized, which is convenient to use and achieves the effect of facilitating the hemming operation.

[0013] 2. By arranging the servo motor, the lead screw and the slider, the present utility model ensures that when in use, the servo motor can be used to drive the lead screw to rotate, so as to adjust the distance between the fixed plate and the support pad, and realize the hemming operation on airbag cloths of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the exploded structural schematic diagram of the present utility model;

[0016] Figure 3 is one of the partial structural schematic diagrams of the present utility model;

[0017] Figure 4 is another partial structural schematic diagram of the present utility model;

[0018] Figure 5 is still another partial structural schematic diagram of the present utility model;

[0019] The meanings of the various reference numerals in the drawings are as follows:

[0020] 1. Bottom plate; 10. Rectangular groove; 11. Cutting pad; 12. Mounting seat;

[0021] 2. Conveyor roller; 20. Rotating shaft; 21. Driving motor; 22. Gear;

[0022] 3. Fixed plate; 30. Guide roller; 31. Slide rail; 311. Chute; 32. Servo motor; 33. Lead screw; 34. Slide block; 35. Support pad; 351. Guide hole; 36. U-shaped frame; 37. Rectangular hole; 371. Flanging cam. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1 - 5 , the present invention provides a technical solution: a fabric flanging device, including a bottom plate 1, one side of the upper surface of the bottom plate 1 is fixedly installed with a fixed plate 3, and on the other side of the bottom plate 1 relative to the fixed plate 3, there is also provided a rectangular groove 10. A slide rail 31 is fixedly installed in the rectangular groove 10, a lead screw 33 is rotatably installed on the slide rail 31, a servo motor 32 is fixedly installed at the end of the slide rail 31, the end of the output shaft of the servo motor 32 is in transmission connection with one end of the lead screw 33, a slide block 34 is threadedly connected to the lead screw 33, the slide block 34 is slidably connected to the slide rail 31 along the direction of approaching or departing from the fixed plate 3, the top of the slide block 34 is fixedly installed with a support pad 35, and U-shaped frames 36 are fixedly installed on the sides of the fixed plate 3 and the support pad 35 away from each other. The openings of the two U-shaped frames 36 face each other and the bottom ends are respectively connected to the fixed plate 3 and the support pad 35. There is a gap between the top ends of the two U-shaped frames 36 and the fixed plate 3 and the support pad 35 respectively. A rectangular hole 37 is provided at the top of the U-shaped frame 36, and a flanging cam 371 is rotatably connected in the rectangular hole 37. The bottom edge of the flanging cam 371 is located below the plane of the top surfaces of the fixed plate 3 and the support pad 35, so that the airbag fabric can be conveyed along the top surfaces of the fixed plate 3 and the support pad 35, and the flanging cam 371 squeezes the side part of the airbag fabric downward to complete the folding operation, which is convenient for use.

[0025] In this embodiment, a cutting pad 11 is fixedly installed on the bottom plate 1, and the top surfaces of the cutting pad 11, the fixed plate 3 and the support pad 35 are all on the same horizontal plane, which is convenient for normal cutting operation at the cutting pad 11 part.

[0026] Specifically, a chute 311 is provided in the slide rail 31 along the length direction of the slide rail 31. The slider 34 is located in the chute 311 and is slidably connected to the chute 311. The cross-sections of the slider 34 and the chute 311 are both T-shaped, and the size of the slider 34 is adapted to the size of the chute 311, so that the slider 34 can slide stably.

[0027] Further, a plurality of guide rollers 30 are fixedly installed on one side of the fixed plate 3 close to the support cushion block 35. A plurality of guide holes 351 adapted to the guide rollers 30 are provided in the support cushion block 35. The guide rollers 30 are slidably inserted into the corresponding guide holes 351, achieving the effect of guiding the movement of the support cushion block 35.

[0028] It is worth noting that mounting seats 12 are respectively provided at both ends of the top surface of the bottom plate 1. Two rotating shafts 20 arranged at upper and lower intervals are rotatably connected to each mounting seat 12. Conveyor rollers 2 are arranged on the rotating shafts 20. A driving motor 21 is arranged on the mounting seat 12. The output shaft end of the driving motor 21 is connected to one of the rotating shafts 20. Gears 22 that mesh with each other are arranged at the other ends of the two rotating shafts 20, realizing the conveying operation of the airbag fabric by using the conveyor rollers 2.

[0029] When the fabric hemming device of the present utility model is in use, the airbag fabric is passed through the left and right groups of conveyor rollers 2. The driving motor 21 is connected to an external power supply and made to work. When the driving motor 21 works, the output shaft thereon rotates to drive the rotating shaft 20 to rotate, further driving the conveyor roller 2 to rotate, realizing the conveying operation of the airbag fabric. In addition, when the airbag fabric is conveyed forward along the top surface of the fixed plate 3 and the top surface of the support cushion block 35, after passing through the hemming cam 371, the wheel body of the hemming cam 371 can squeeze the airbag fabric downward, realizing the hemming operation of squeezing the side part of the airbag fabric downward, which is convenient to use.

[0030] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A fabric hemming device, characterized in that: It includes a bottom plate (1). On one side of the upper surface of the bottom plate (1), a fixed plate (3) is fixedly installed. On the other side of the bottom plate (1) relative to the fixed plate (3), a rectangular groove (10) is further provided. A slide rail (31) is fixedly installed in the rectangular groove (10). A lead screw (33) is rotatably installed on the slide rail (31). A servo motor (32) is fixedly installed at the end of the slide rail (31). The end of the output shaft of the servo motor (32) is in transmission connection with one end of the lead screw (33). A slider (34) is threadedly connected to the lead screw (33). The slider (34) is slidably connected to the slide rail (31) in a direction close to or away from the fixed plate (3). A support pad (35) is fixedly installed at the top of the slider (34). U-shaped frames (36) are fixedly installed on the sides of the fixed plate (3) and the support pad (35) away from each other. The openings of the two U-shaped frames (36) face each other, and the bottom ends of the two U-shaped frames (36) are respectively connected to the fixed plate (3) and the support pad (35). There is a gap between the top ends of the two U-shaped frames (36) and the fixed plate (3) and the support pad (35) respectively. A rectangular hole (37) is provided at the top of the U-shaped frame (36). A hemming cam (371) is rotatably connected in the rectangular hole (37). The bottom edge of the hemming cam (371) is located below the plane where the top surfaces of the fixed plate (3) and the support pad (35) are located.

2. The fabric hemming device according to claim 1, characterized in that: A cutting pad (11) is fixedly installed on the bottom plate (1). The top surfaces of the cutting pad (11), the fixed plate (3), and the support pad (35) are all on the same horizontal plane.

3. The hemmer for fabric according to claim 1, wherein: A chute (311) is provided in the slide rail (31) along the length direction of the slide rail (31). The slider (34) is located in the chute (311) and is slidably connected to the chute (311).

4. The hemmer for fabric according to claim 1, wherein: A plurality of guide rollers (30) are fixedly installed on the side of the fixed plate (3) close to the support pad (35). A plurality of guide holes (351) adapted to the guide rollers (30) are provided in the support pad (35). The guide rollers (30) are slidably inserted into the corresponding guide holes (351).

5. A fabric hemming device according to claim 1, characterized in that: Mounting seats (12) are respectively provided at both ends of the top surface of the bottom plate (1). Two rotating shafts (20) arranged at upper and lower intervals are rotatably connected to each mounting seat (12). Conveyor rollers (2) are provided on the rotating shafts (20). A driving motor (21) is provided on the mounting seat (12). The output shaft end of the driving motor (21) is connected to one of the rotating shafts (20). Gears (22) that mesh with each other are provided at the other ends of the two rotating shafts (20).

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