Cloth bonding machine

Abstract

The utility model discloses a cloth bonding machine, including frame, one side of frame is feed end, the other side is discharge end, be provided with on the frame: upper delivery bin and lower delivery bin, form cloth delivery channel between upper delivery bin and lower delivery bin, press fit device, be connected between frame and upper delivery bin, be used for drive upper delivery bin relative lower delivery bin along vertical direction movement to press fit cloth, heating device, set up between upper delivery bin and lower delivery bin, including upper heating plate and lower heating plate, the lower surface of upper heating plate and the lower section work surface of upper conveyor belt heat contact, the upper surface of lower heating plate and the upper section work surface of lower conveyor belt heat contact. The utility model discloses the whole lifting of upper delivery bin, makes upper and lower conveyor belt form all -round parallel clamping structure, and cloth can obtain stable, even press fit force from feed end to the full width of discharge end, thoroughly solve the problem of the insufficient extrusion in the middle area of existing equipment, and the adhesion strength is high, and there is no bubble, and the flatness is good.

Description

Technical Field

[0001] This utility model relates to the technical field of fabric bonding equipment, specifically a fabric bonding machine. Background Technology

[0002] In the production and processing of clothing, fabrics, and flyknitted shoe uppers, the bonding of multiple layers of fabric is one of the key processes. This typically involves using hot melt adhesives or hot pressing to combine fabrics of different materials and functions to meet the product's strength, warmth, and waterproofing requirements. To achieve this process, specialized fabric bonding equipment has emerged in the industry. Its core working principle involves using upper and lower belts for clamping and conveying, combined with heat transfer from upper and lower heating plates, to melt the hot melt adhesive between the fabrics and bond them together under pressure.

[0003] However, existing fabric bonding equipment has significant structural defects: in its core transmission components, both the upper drive roller and the upper and lower guide rollers are fixed structures. The spacing between the upper and lower belts is adjusted only by driving the lower drive roller to move up and down, thereby applying pressure to the fabric. This design results in the pressure being concentrated only in the local area corresponding to the upper and lower drive rollers. During the conveying process, only the area near the upper and lower drive rollers is effectively compressed, while the actual linear pressure on the fabric in the middle area is significantly reduced. Consequently, in the most critical bonding area, the middle part of the fabric is not subjected to truly sufficient and uniform compression, and a stable and sufficient pressure cannot be obtained.

[0004] The aforementioned defects directly lead to the following problems: 1. Low bonding efficiency: the hot melt adhesive in the middle area cannot fully adhere to the fabric fibers, requiring rework; 2. Insufficient bonding strength: the finished fabric is prone to delamination and delamination in the middle, especially affecting the quality of products with high structural strength requirements, such as flyknit uppers; 3. Uneven bonding effect: local over-pressure and under-pressure coexist, resulting in poor overall performance consistency of the fabric and failing to meet the processing requirements of the product. Utility Model Content

[0005] The purpose of this invention is to provide a fabric bonding machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fabric bonding machine, comprising a frame, one side of which is a feeding end and the other side is a discharging end, and the frame is provided with:

[0007] An upper conveying bin and a lower conveying bin are arranged opposite each other, forming a fabric conveying channel between the upper and lower conveying bins. The upper conveying bin is equipped with an upper conveyor belt and an upper drive device for driving the upper conveyor belt. The lower conveying bin is equipped with a lower conveyor belt and a lower drive device for driving the lower conveyor belt.

[0008] A pressing device, connected between the frame and the upper conveyor bin, is used to drive the upper conveyor bin to move vertically relative to the lower conveyor bin in order to press the fabric.

[0009] A heating device is installed between the upper and lower conveyor bins, including an upper heating plate and a lower heating plate. The lower surface of the upper heating plate is in thermal contact with the lower working surface of the upper conveyor belt, and the upper surface of the lower heating plate is in thermal contact with the upper working surface of the lower conveyor belt.

[0010] Furthermore, the upper drive device includes an upper transmission roller, an upper guide roller, and an upper drive mechanism for driving the upper transmission roller to rotate, all rotatably mounted on the frame. The upper conveyor belt is wound around the upper transmission roller and the upper guide roller.

[0011] The lower drive device includes a lower transmission roller, a lower guide roller, and a lower drive mechanism for driving the lower transmission roller to rotate, all rotatably mounted on the frame. The lower conveyor belt is wound around the lower transmission roller and the lower guide roller.

[0012] Furthermore, the upper drive device also includes an upper tensioning roller for adjusting the tension of the upper conveyor belt, and the lower drive device also includes a lower tensioning roller for adjusting the tension of the lower conveyor belt.

[0013] Furthermore, both the upper tensioning roller and the lower tensioning roller are equipped with adjustment mechanisms for adjusting the tension of the upper and lower conveyor belts.

[0014] Furthermore, the adjustment mechanism includes a drive motor, a drive gear, a driven gear, a lead screw, and a slider; the drive gear is fixedly sleeved on the output shaft of the drive motor, the driven gear is fixedly sleeved on one end of the lead screw and meshes with the drive gear; the slider is threadedly engaged with the lead screw and connected to the rotating shaft of the upper tension roller or the lower tension roller, so as to drive the upper tension roller or the lower tension roller to move left and right through the rotation of the lead screw.

[0015] Furthermore, both the upper drive mechanism and the lower drive mechanism include a drive motor, a drive sprocket, a driven sprocket, and a chain; the drive sprocket is fixedly sleeved on the output shaft of the drive motor, the driven sprocket is fixedly sleeved on the upper or lower transmission roller, and the chain meshes between the drive sprocket and the driven sprocket.

[0016] Furthermore, the upper heating plate and the lower heating plate are staggered along the fabric conveying direction.

[0017] Furthermore, the pressing device includes a pressing cylinder, the piston rod of which extends vertically and is fixedly connected to the top of the upper conveying chamber to drive the upper conveying chamber to rise and fall.

[0018] Furthermore, a buffer spring is provided between the piston rod and the upper conveying chamber, with one end of the buffer spring abutting against the end of the piston rod and the other end abutting against the top of the upper conveying chamber.

[0019] Furthermore, the pressing device includes two sets, which are arranged at intervals along the fabric conveying direction and are respectively close to the feed end and the discharge end.

[0020] Compared with the prior art, the beneficial effects of this utility model are: This utility model drives the upper conveyor bin to lift and lower as a whole through the pressing device, so that the upper and lower conveyor belts form a parallel clamping structure throughout the entire process. The fabric can obtain stable and uniform pressing force on the entire width from the feeding end to the discharging end, which completely solves the problem of insufficient extrusion in the middle area of ​​the existing equipment. It has high bonding strength, no bubbles, and good flatness. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the fabric bonding machine of this utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the fabric bonding machine of this utility model;

[0023] Figure 3 This is a schematic diagram of the adjustment mechanism in the fabric bonding machine of this utility model;

[0024] Figure 4 This is a schematic diagram of the upper drive mechanism in the fabric bonding machine of this utility model;

[0025] The diagram shows the following labels: 1. Frame; 11. Feed end; 12. Discharge end; 2. Upper conveyor bin; 21. Upper conveyor belt; 22. Upper drive roller; 23. Upper guide roller; 24. Upper tension roller; 25. Upper drive mechanism; 251. Drive motor; 252. Drive sprocket; 253. Driven sprocket; 254. Chain; 3. Lower conveyor bin; 31. Lower conveyor belt; 32. Lower drive roller; 33. Lower guide roller; 34. Lower tension roller; 35. Lower drive mechanism; 36. Adjustment mechanism; 361. Drive motor; 362. Drive gear; 363. Driven gear; 364. Lead screw; 365. Slider; 4. Pressing device; 41. Drive motor; 42. Buffer spring; 51. Upper heating plate; 52. Lower heating plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-4 As shown, this embodiment provides a fabric bonding machine, including a frame 1, one side of which is a feeding end 11 and the other side is a discharging end 12. The frame 1 is provided with an upper conveying chamber 2, a lower conveying chamber 3, a pressing device 4 and a heating device arranged opposite to each other.

[0028] A fabric conveying channel is formed between the upper conveying bin 2 and the lower conveying bin 3. The upper conveying bin 2 is equipped with an upper conveyor belt 21 and an upper drive device for driving the upper conveyor belt 21. The lower conveying bin 3 is equipped with a lower conveyor belt 31 and a lower drive device for driving the lower conveyor belt 31. The lower section of the upper conveyor belt 21 and the upper section of the lower conveyor belt 31 are arranged parallel to each other, forming a conveying structure that clamps the fabric throughout its travel. In this embodiment, the upper drive device includes an upper drive roller 22, an upper guide roller 23, and an upper tension roller 24, all rotatably mounted on the frame 1. 4. An upper drive mechanism 25 for driving the upper drive roller 22 to rotate. The upper conveyor belt 21 is wound around the upper drive roller 22, the upper guide roller 23, and the upper tension roller 24. The lower drive device includes a lower drive roller 32, a lower guide roller 33, a lower tension roller 34 rotatably mounted on the frame 1, and a lower drive mechanism 35 for driving the lower drive roller 32 to rotate. The lower conveyor belt 31 is wound around the lower drive roller 32, the lower guide roller 33, and the lower tension roller 34. The upper tension roller 34 and the lower tension roller 35 are respectively provided with adjustment mechanisms for the upper conveyor belt 21. The tension adjustment mechanism for the lower conveyor belt 31 is the same as that for the upper tension roller 34 and the lower tension roller 35. Taking the upper tension roller 34 as an example, the adjustment mechanism includes a drive motor 361, a driving gear 362, a driven gear 363, a lead screw 364, and a slider 365. The drive motor 361 is fixed on the frame 1. The driving gear 362 is fixedly sleeved on the output shaft of the drive motor 361. The driven gear 363 is fixedly sleeved on one end of the lead screw 364 and meshes with the driving gear 362. The lead screw 364... The slider 365 is horizontally rotatably mounted on the frame 1 via a bearing seat. It is threadedly engaged with the lead screw 364 and connected to the shaft of the lower tension roller 34 via a bearing. When the conveyor belt is slack, the drive motor 361 starts, driving the drive gear 362 to rotate. The drive gear 363 drives the lead screw 364 to rotate, and the slider 365, which is threadedly engaged with the lead screw 364, moves linearly accordingly. This drives the shaft of the lower tension roller 34 to move, adjusting the position of the lower tension roller 34 to achieve tensioning of the upper conveyor belt 21. The adjustment mechanism of the upper tension roller 24 is the same as the above structure. The upper drive mechanism 25 and the lower drive mechanism 35 have the same structure. Taking the upper drive mechanism 25 as an example, the upper drive mechanism 25 includes a drive motor 251, a drive sprocket 252, a driven sprocket 253, and a chain 254. The drive sprocket 252 is fixedly sleeved on the output shaft of the drive motor 251, and the driven sprocket 252 is fixedly sleeved on the upper transmission roller 22. The chain 254 is wound around the outer periphery of the drive sprocket 252 and the driven sprocket 253 to form a meshing transmission. When the drive motor 251 is started, the chain drive drives the upper transmission roller 22 to rotate, thereby driving the upper conveyor belt 21 to run. The lower drive mechanism 35 starts synchronously with the upper drive mechanism 25 to ensure that the linear speed of the upper and lower conveyor belts is consistent.

[0029] The pressing device 4 is connected between the frame 1 and the upper conveying bin 2, and is used to drive the upper conveying bin 2 to move vertically relative to the lower conveying bin 3 to press the fabric. It includes a pressing cylinder 41, the piston rod of which extends vertically and is fixedly connected to the top of the upper conveying bin 2 to drive the upper conveying bin 2 to rise and fall. A buffer spring 42 is provided between the piston rod and the upper conveying bin 2. One end of the buffer spring 42 abuts against the end of the piston rod, and the other end abuts against the top of the upper conveying bin 2. For example, a plate is provided at the end of the piston rod to buffer the fabric. One end of the impact spring 42 abuts against the plate, and the other end abuts against the top of the aforementioned conveyor 2. The buffer spring 42 can effectively absorb the impact and ensure stable pressure. The pressing device 4 includes two sets. The two sets of pressing devices 4 are arranged at intervals along the fabric conveying direction and are respectively close to the feed end 11 and the discharge end 12. The piston rods of the two sets of pressing devices are controlled to extend and retract synchronously through the same air circuit to ensure that the upper conveying chamber 21 remains horizontal during the lifting and lowering process, avoiding uneven pressing caused by tilting, thereby ensuring that the fabric can obtain sufficient pressure when entering and leaving the heating zone, and ensuring the bonding quality.

[0030] The heating device is located between the upper conveyor bin 2 and the lower conveyor bin 3, and includes an upper heating plate 51 and a lower heating plate 52. The upper heating plate 51 and the lower heating plate 52 are fixedly installed on the frame 1 and are staggered along the fabric conveying direction. The lower surface of the upper heating plate 51 is in close contact with the lower working surface of the upper conveyor belt 21 to conduct heat, and the upper surface of the lower heating plate 52 is in close contact with the upper working surface of the lower conveyor belt 31 to conduct heat. The heat is synchronously transferred to the upper and lower surfaces of the fabric through the upper and lower conveyor belts. In this embodiment, the upper heating plate 51 and the lower heating plate 52 are heated by heating aluminum plates, which can accurately and uniformly control the temperature and are suitable for various fabrics. Their length is adapted to the width of the conveyor belt to ensure that the entire width of the fabric is heated evenly.

[0031] During operation, the multi-layered fabric to be bonded is fed from the feed end 11 between the upper conveyor belt 21 and the lower conveyor belt 31. The upper and lower drive mechanisms work synchronously, driving the upper and lower conveyor belts to move the fabric towards the discharge end 12 at a uniform speed. At the same time, the pressing device 4 works, driving the upper conveyor bin 2 to press down, so that all components installed in the upper conveyor bin 2, such as the upper drive roller 22 and the upper guide roller 23, are pressed down synchronously as a whole. In this way, the fabric conveying channel between the upper conveyor belt 21 and the lower conveyor belt 31 from the feed end 11 to the discharge end 12 is uniform. Therefore, after the fabric enters the fabric conveying channel, its entire width and length direction, especially the middle area, can be subjected to the same and uniformly distributed pressure, and it passes through the heating zone under the set pressure. Within this area, the heat generated by the upper and lower heating plates 51 and 52 is evenly transferred to the fabric through the upper and lower conveyor belts 21 and 31, causing the hot melt adhesive in the middle of the fabric to melt. Under continuous pressure and temperature, the multiple layers of fabric are firmly bonded together and finally output from the discharge end 12, completing the bonding process. During this process, the tension adjustment mechanism monitors the tension of the conveyor belt in real time and automatically adjusts the position of the tension roller to ensure the stability of the conveying.

[0032] This invention uses a pressing device to drive the upper conveyor bin to lift and lower as a whole, so that the upper and lower conveyor belts form a parallel clamping structure throughout the entire process. The fabric can obtain stable and uniform pressing force across the entire width from the feeding end to the discharging end, completely solving the problem of insufficient compression in the middle area of ​​existing equipment. It has high bonding strength, no bubbles, and good flatness.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fabric bonding machine, comprising a frame, wherein one side of the frame is a feeding end and the other side is a discharging end, characterized in that, The frame is equipped with: An upper conveying bin and a lower conveying bin are arranged opposite each other, forming a fabric conveying channel between the upper and lower conveying bins. The upper conveying bin is equipped with an upper conveyor belt and an upper drive device for driving the upper conveyor belt. The lower conveying bin is equipped with a lower conveyor belt and a lower drive device for driving the lower conveyor belt. A pressing device, connected between the frame and the upper conveyor bin, is used to drive the upper conveyor bin to move vertically relative to the lower conveyor bin in order to press the fabric. A heating device is installed between the upper and lower conveyor bins, including an upper heating plate and a lower heating plate. The lower surface of the upper heating plate is in thermal contact with the lower working surface of the upper conveyor belt, and the upper surface of the lower heating plate is in thermal contact with the upper working surface of the lower conveyor belt.

2. The fabric bonding machine according to claim 1, characterized in that: The upper drive device includes an upper transmission roller, an upper guide roller, and an upper drive mechanism for driving the upper transmission roller to rotate, all rotatably mounted on the frame. The upper conveyor belt is wound around the upper transmission roller and the upper guide roller. The lower drive device includes a lower transmission roller, a lower guide roller, and a lower drive mechanism for driving the lower transmission roller to rotate, all rotatably mounted on the frame. The lower conveyor belt is wound around the lower transmission roller and the lower guide roller.

3. The fabric bonding machine according to claim 2, characterized in that: The upper drive device further includes an upper tensioning roller for adjusting the tension of the upper conveyor belt, and the lower drive device further includes a lower tensioning roller for adjusting the tension of the lower conveyor belt.

4. The fabric bonding machine according to claim 3, characterized in that: Both the upper tensioning roller and the lower tensioning roller are equipped with adjustment mechanisms for adjusting the tension of the upper and lower conveyor belts.

5. The fabric bonding machine according to claim 4, characterized in that: The adjustment mechanism includes a drive motor, a drive gear, a driven gear, a lead screw, and a slider; the drive gear is fixedly sleeved on the output shaft of the drive motor, the driven gear is fixedly sleeved on one end of the lead screw and meshes with the drive gear; the slider is threadedly engaged with the lead screw and connected to the rotating shaft of the upper or lower tension roller, so as to drive the upper or lower tension roller to move left and right through the rotation of the lead screw.

6. The fabric bonding machine according to claim 2, characterized in that: Both the upper drive mechanism and the lower drive mechanism include a drive motor, a drive sprocket, a driven sprocket, and a chain; the drive sprocket is fixedly sleeved on the output shaft of the drive motor, the driven sprocket is fixedly sleeved on the upper or lower transmission roller, and the chain meshes between the drive sprocket and the driven sprocket.

7. The fabric bonding machine according to claim 1, characterized in that: The upper heating plate and the lower heating plate are staggered along the fabric conveying direction.

8. The fabric bonding machine according to claim 1, characterized in that: The pressing device includes a pressing cylinder, the piston rod of which extends vertically and is fixedly connected to the top of the upper conveying chamber.

9. The fabric bonding machine according to claim 8, characterized in that: A buffer spring is provided between the piston rod and the upper conveying chamber. One end of the buffer spring abuts against the end of the piston rod, and the other end abuts against the top of the upper conveying chamber.

10. The fabric bonding machine according to claim 8 or 9, characterized in that: The pressing device includes two sets, which are arranged at intervals along the fabric conveying direction and are respectively close to the feed end and the discharge end.

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