Full covering leather belt and its manufacturing device

Abstract

The utility model relates to clothing waistband production technical field discloses a full leather waistband and preparation facilities thereof, including leather layer, adhesive part and sewing part, adhesive part sets up in the inner wall of leather layer, sewing part sets up in the both ends edge position of leather layer, the both ends of leather layer drive adhesive part to form glue injection chamber after turning inwards, the utility model discloses when producing and processing to leather waistband, the plastic material is heated and melts, and is injected into the inside of waistband, makes it instead of traditional filler, and uses machine sewing simultaneously, and the filling and sewing are completed simultaneously, make the plastic be located in the inside of leather layer can have good support, shaping effect, and can completely fuse together the skin of leather waistband, greatly improve the service life of leather waistband, avoid the problem of the emergence of the service life reduction of leather waistband in prior art by using glue to adhere filler and leather layer.

Description

Technical Field

[0001] This utility model relates to the field of clothing belt production technology, and in particular to a fully enclosed leather belt and its preparation device. Background Technology

[0002] A leather belt is a clothing accessory made primarily of leather. It's mainly used to secure trousers, adjust the waistline, and also serves a decorative purpose, making it a common item in everyday wear. Its core characteristic is its reliance on the natural properties of leather, allowing it to adapt to different styles of clothing and occasions, from casual to formal.

[0003] When manufacturing leather belts, an inner lining is needed to shape the belt and meet thickness requirements. Current technology involves gluing the pre-formed inner lining to the surface leather and then sewing the seam together, resulting in a belt that meets usage requirements. However, using glue to bond the inner lining to the leather layer makes the belt prone to cracking and delamination during subsequent use, leading to bulging, breakage, and reduced lifespan. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fully enclosed leather belt and its preparation device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A full-coverage leather belt includes a leather layer, an adhesive part, and a sewing part. The adhesive part is located on the inner wall of the leather layer, and the sewing part is located at the two ends of the leather layer. When the two ends of the leather layer are folded inward, they cause the adhesive part to surround and form an injection chamber.

[0007] Preferably, the folded adhesive parts are bonded together by the injected plastic inside the injection chamber, and the stitched parts of the folded leather layer edges are stitched together by a stitching device, so that the interior of the leather layer forms a closed structure, forming the leather belt body.

[0008] Preferably, an apparatus for preparing the above-mentioned full-coverage leather belt includes a mounting frame, a first conveying roller rotatably mounted on one top end of the mounting frame, a leather layer placed on the surface of the first conveying roller, an injection mechanism for injecting plastic into an injection chamber provided on the back of the mounting frame, a first cleaning mechanism and a second cleaning mechanism for cleaning the outer walls on both sides of the leather layer respectively provided on the top of the mounting frame below the injection mechanism, a sewing mechanism for automatically sewing the edge of the folded leather layer provided at the center of the top of the mounting frame, and a conveying mechanism mounted on the other top end of the mounting frame.

[0009] Preferably, the glue injection mechanism includes a glue bucket, an installation platform is provided on the back of the mounting frame, the glue bucket is installed on the top of the installation platform, an extruder is installed at the bottom of the glue bucket near the leather layer, and a glue injection head is installed at the end of the extruder away from the glue bucket.

[0010] Preferably, the sewing mechanism includes a sewing machine, which is installed at the top center of the mounting frame. A connecting frame is installed on the front of the sewing machine, and a shaping roller is installed at the top of the end of the connecting frame away from the sewing machine.

[0011] Preferably, the conveying mechanism includes a conveyor belt, a housing is mounted on the other end of the top of the mounting frame, the conveyor belt is rotatably connected to the housing through two internally arranged drive shafts, and a second conveying roller is mounted on one end of the housing in an inclined state.

[0012] Preferably, the first cleaning mechanism includes a fixed frame mounted on a mounting bracket, the fixed frame having a first sliding groove inside, a first slider being slidably mounted inside the first sliding groove, the top of the fixed frame having a first through groove communicating with the first sliding groove, a first screw being mounted on the top of the first slider and sliding back and forth inside the first through groove, and a first nut being threaded onto the top of the first screw.

[0013] Preferably, the bottom end of the first slider is connected to a first mounting base via two electric telescopic rods, and a first dust-adhesive roller is rotatably mounted inside the first mounting base.

[0014] Preferably, the second cleaning mechanism includes a fixed plate mounted on a mounting bracket. The top of the fixed plate has a second sliding groove, and a second slider is slidably mounted inside the second sliding groove. The bottom of the fixed plate has a second through groove communicating with the second sliding groove. The bottom end of the second slider is equipped with a second screw that slides back and forth inside the second through groove, and the bottom end of the second screw is threaded with a second nut.

[0015] Preferably, a rectangular block is installed at the top of the second slider, and a groove is opened inside the rectangular block. A double-ended lead screw is rotatably installed inside the groove. A drive motor with its output end connected to one end of the double-ended lead screw is installed on one outer wall of the rectangular block. Two moving blocks are threaded on the outer wall of the double-ended lead screw. A second mounting seat is installed at the top of each of the two moving blocks, and a second dust-adhesive roller is rotatably installed inside each of the two second mounting seats.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] In this invention, during the production and processing of leather belts, plastic material is heated and melted, then injected into the belt to replace traditional fillers. Simultaneously, machine sewing is used to complete the filling and sewing at the same time. This allows the plastic, located inside the leather layer, to provide good support and shaping, and also to completely fuse the leather surface of the belt together. This greatly improves the service life of the leather belt and avoids the problem of reduced service life caused by using glue to bond the filler and leather layer in existing technologies. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a fully enclosed leather belt and its preparation device proposed in this utility model;

[0019] Figure 2 This is a partial structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the first cleaning mechanism in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the first cleaning roller in this utility model;

[0022] Figure 5 This is a schematic diagram of the bottom structure of the fixing plate in this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the second cleaning mechanism in this utility model;

[0024] Figure 7 This is a cross-sectional view of the rectangular block in this utility model;

[0025] Figure 8 This is a schematic diagram of the structure of the leather belt body prepared in this utility model;

[0026] Figure 9 This is a cross-sectional view of the leather belt body in this utility model.

[0027] In the diagram: 1. Glue bucket; 2. Extruder; 3. Glue injection head; 4. Leather layer; 5. First conveyor roller; 6. Sewing machine; 7. Shaping roller shaft; 8. Second conveyor roller; 9. Conveyor belt; 10. Mounting frame; 11. Fixing frame; 12. Fixing plate; 13. First dust-adhesive roller; 14. Second dust-adhesive roller; 15. First chute; 16. First through groove; 17. First mounting base; 18. First slider; 19. First screw; 20. Drive motor; 21. Electric telescopic rod; 22. Second chute; 23. Second through groove; 24. Rectangular block; 25. Second slider; 26. Second screw; 27. Double-ended lead screw; 28. Leather belt body; 29. ​​Moving block; 30. Second mounting base; 31. Glue injection chamber; 32. Sewing part; 33. Adhesive part. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Reference Figures 1-9 A full-coverage leather belt includes a leather layer 4, an adhesive part 33, and a sewing part 32. The adhesive part 33 is disposed on the inner wall of the leather layer 4, and the sewing part 32 is disposed at the two ends of the leather layer 4. After the two ends of the leather layer 4 are folded inward, the adhesive part 33 is driven to surround and form an injection chamber 31.

[0030] As a technical optimization of this utility model, the plastic injected into the injection chamber 31 allows the folded adhesive parts 33 to bond together, and the stitched parts 32 at the edges of the folded leather layer 4 are stitched together by a stitching device, so that the interior of the leather layer 4 forms a closed structure, forming the leather belt body 28.

[0031] As a technical optimization of this utility model, a preparation device for preparing the above-mentioned full-coverage leather belt includes a mounting frame 10. A first conveying roller 5 is rotatably mounted on one end of the top of the mounting frame 10. The leather layer 4 is placed on the surface of the first conveying roller 5. A glue injection mechanism for injecting plastic into the glue injection chamber 31 is provided on the back of the mounting frame 10. A first cleaning mechanism and a second cleaning mechanism for cleaning the outer walls on both sides of the leather layer 4 are respectively provided on the top of the mounting frame 10 below the glue injection mechanism. A sewing mechanism for automatically sewing the edge of the folded leather layer 4 is provided at the center of the top of the mounting frame 10. A conveying mechanism is installed on the other end of the top of the mounting frame 10.

[0032] As a technical optimization of this utility model, the glue injection mechanism includes a glue tank 1, an installation platform is provided on the back of the mounting frame 10, the glue tank 1 is installed on the top of the installation platform, and an extruder 2 is installed at the bottom of the glue tank 1 near the leather layer 4. A glue injection head 3 is installed at the end of the extruder 2 away from the glue tank 1. Solid plastic granule raw materials are temporarily stored inside the glue tank 1, and then the plastic granules are conveyed to the inside of the extruder 2. After the extruder 2 heats the plastic granule raw materials to the melting point, they are extruded outward in liquid form through the glue injection head 3 onto the leather layer 4.

[0033] As a technical optimization of this utility model, the sewing mechanism includes a sewing machine 6, which is installed at the top center of the mounting frame 10. A connecting frame is installed on the front of the sewing machine 6, and a shaping roller 7 is installed at the top of the end of the connecting frame away from the sewing machine 6. The sewing machine 6 is a common sewing machine in the prior art. With the help of the conveying mechanism and the shaping roller 7, the leather layer 4 can be continuously conveyed to the right end. Before the leather layer 4 moves close to the sewing mechanism, with the help of the mechanical structure preset on the mounting frame 10, such as the folding knife at a specific angle, the guide plate, the roller, etc., the edge of the leather layer 4 is gradually and precisely physically guided and bent during the movement of the leather layer 4 to the right. After the leather layer 4 is folded, an injection chamber 31 is formed inside it. After the injection mechanism injects plastic into the injection chamber 31, the sewing machine 6 sews the sewing parts 32 at both ends of the leather layer 4 to form the prototype of the leather belt body 28.

[0034] As a technical optimization of this utility model, the conveying mechanism includes a conveyor belt 9, and a housing is installed at the other end of the top of the mounting frame 10. The conveyor belt 9 is arranged in a double layer, and each layer of the conveyor belt 9 is rotatably connected to the housing through two internally arranged drive shafts. A second conveyor roller 8 is installed at one end of the housing in an inclined state. The inclined second conveyor roller 8 can guide and flip the sewn leather belt body 28, ensuring that after the leather belt body 28 is flipped to a horizontal state, it is located inside the double-layered conveyor belt 9. The rotation of the conveyor belt 9 can drive the leather belt body 28 to continue to be conveyed to the right end, so as to facilitate subsequent processing of the leather belt body 28.

[0035] As a technical optimization of this utility model, the first cleaning mechanism includes a fixed frame 11 mounted on a mounting bracket 10. A first sliding groove 15 is formed inside the fixed frame 11, and a first slider 18 is slidably mounted inside the first sliding groove 15. A first through groove 16 communicating with the first sliding groove 15 is formed at the top of the fixed frame 11. A first screw 19, which slides back and forth inside the first through groove 16, is mounted at the top of the first slider 18. A first nut is threaded onto the top of the first screw 19. The first slider 18 can slide back and forth inside the first sliding groove 15, thereby synchronously moving and adjusting the first screw 19 inside the first through groove 16. After adjusting the position of the first slider 18, the first nut is threaded onto the top of the first screw 19 and tightened onto the surface of the first screw 19. This limits and fixes the position of the first slider 18 after sliding adjustment, thereby synchronously limiting and fixing the positions of multiple components mounted at the bottom of the first slider 18.

[0036] As a technical optimization of this utility model, the bottom end of the first slider 18 is connected to a first mounting base 17 via two electric telescopic rods 21. A first dust-adhesive roller 13 is rotatably mounted inside the first mounting base 17. By extending the telescopic ends of the two electric telescopic rods 21 downwards, the first dust-adhesive roller 13 comes into contact with the top of the leather layer 4. This allows the first dust-adhesive roller 13 to automatically clean and remove impurities adhering to the top of the leather layer 4 as it is continuously conveyed and processed towards the right end. After a significant amount of impurities adhere to the surface of the first dust-adhesive roller 13, the first nut can be loosened, allowing the operator to manually push the first dust-adhesive roller 13 and other components away from the first conveying roller 5. This facilitates the cleaning of impurities adhering to the surface of the first dust-adhesive roller 13, enabling its subsequent use.

[0037] As a technical optimization of this utility model, the second cleaning mechanism includes a fixed plate 12 mounted on a mounting bracket 10. A second sliding groove 22 is formed at the top of the fixed plate 12, and a second slider 25 is slidably mounted inside the second sliding groove 22. A second through groove 23 communicating with the second sliding groove 22 is formed at the bottom of the fixed plate 12. A second screw 26, which slides back and forth inside the second through groove 23, is mounted at the bottom end of the second slider 25. A second nut is threaded onto the bottom end of the second screw 26. The second slider 25 can slide back and forth inside the second sliding groove 22, thereby synchronously moving and adjusting the second screw 26 inside the second through groove 23. After adjusting the position of the second slider 25, the second nut is threaded onto the top end of the second screw 26 and tightened onto the surface of the second screw 26. This limits and fixes the position of the second slider 25 after sliding adjustment, thus synchronously limiting and fixing the positions of multiple components mounted on the top end of the second slider 25.

[0038] As a technical optimization of this utility model, a rectangular block 24 is installed at the top of the second slider 25. A groove is opened inside the rectangular block 24. A double-headed lead screw 27 is rotatably installed inside the groove. A drive motor 20 with its output end connected to one end of the double-headed lead screw 27 is installed on one side of the outer wall of the rectangular block 24. Two moving blocks 29 are threadedly installed on the outer wall of the double-headed lead screw 27. A second mounting seat 30 is installed at the top of each of the two moving blocks 29. A second dust-adhesive roller 14 is rotatably installed inside each of the two second mounting seats 30. By controlling the start of the drive motor 20, the double-headed lead screw 27 is rotated, which in turn drives the two moving blocks 29 and the second dust-adhesive roller 14 to move towards or away from each other. When the two second dust-adhesive rollers 14 move towards each other, they can come into contact with the outer walls on both sides of the folded leather layer 4 to clean the impurities attached to the outer walls on both sides of the folded leather layer 4. After a large amount of impurities are attached to the surface of the two second dust-adhesive rollers 14, the second nut is loosened, allowing the operator to manually push the two second dust-adhesive rollers 14 and other components away from the mounting frame 10 to facilitate the cleaning of the impurities attached to the surface of the two second dust-adhesive rollers 14, so as to facilitate the subsequent use of the two second dust-adhesive rollers 14.

[0039] In this embodiment, the first adhesive roller 13 and the two second adhesive rollers 14 are both adhesive rollers with a surface layer of polyvinyl acrylate adhesive, which is common in the prior art. Since the polyvinyl acrylate adhesive is an environmentally friendly pressure-sensitive adhesive with low to medium tack, the adhesive surface is soft and highly transparent, making it most suitable for smooth leather, aniline leather, corrected grain leather and other leathers with smooth or coated surfaces; it will not remove the wax layer or coating layer on the leather surface during use, nor will it leave adhesive residue; and it can be reused repeatedly.

[0040] In this invention, the leather layer 4 to be processed is first placed on the surface of the first conveyor roller 5, and one end of the leather layer 4 is placed inside the double-layer conveyor belt 9. As the conveyor belt 9 rotates, it has a rightward pulling effect on the leather layer 4, causing the leather layer 4 to be conveyed to the right at the top of the mounting frame 10. At this time, the worker places the solid plastic granule raw material inside the glue bucket 1 for temporary storage. Then the plastic granules are conveyed to the inside of the extruder 2. After the extruder 2 heats the plastic granule raw material to the melting point, the leather layer 4 is folded inward by the folding mechanism preset at the top of the mounting frame 10, causing the adhesive part 33 to surround and form the glue injection chamber 31. The glue injection head 3 then expels the liquid plastic outward into the glue injection chamber 31, completing the glue injection work of the folded glue injection chamber 31 of the leather layer 4.

[0041] After the injection head 3 extrudes the plastic into the injection chamber 31, as the leather layer 4 continues to be conveyed to the right, the sewing machine 6 can be used to sew the sewing parts 32 at both ends of the leather layer 4. With the help of the shaping roller 7 to shape and limit the sewing parts 32 and assist in conveying, the leather layer 4, which is folded inward and filled with plastic, can be automatically sewn to form the prototype of the leather belt body 28.

[0042] When the aforementioned injection mechanism injects liquid plastic into the injection chamber 31, the flow rate of the liquid plastic extruded from the injection head 3 is consistent with the stitching speed of the sewing machine 6 on the leather layer 4 and the traction speed of the conveyor belt 9 on the leather layer 4. This ensures that the viscous plastic does not overflow from the seams after being extruded into the injection chamber 31 and then stitched by the sewing machine 6 on the leather layer 4, thus ensuring that the quality and efficiency of the entire production line in preparing the leather belt body 28 are not affected. In this application, the conveyor belt 9 is double-layered. The stitched leather belt body 28 enters the double-layered conveyor belt 9 horizontally and is then pulled and moved.

[0043] During the process of conveying the leather layer 4 from the left end to the right end of the mounting frame 10, the downward extension of the extension ends of the two electric telescopic rods 21 can be controlled, which drives the first dust-adhesive roller 13 to come into contact with the top of the leather layer 4, so that the impurities attached to the top of the leather layer 4 can be automatically cleaned and removed by the first dust-adhesive roller 13, avoiding the presence of impurities on the top of the leather layer 4, which would affect the bonding quality of the subsequent adhesive part 33, and ensuring that the quality of the produced leather belt body 28 meets the standards.

[0044] While the first dust-adhesive roller 13 cleans and removes impurities from the top of the leather layer 4, the drive motor 20 can be controlled to start and drive the double-headed lead screw 27 to rotate. This will cause the two moving blocks 29 and the second dust-adhesive roller 14 to move towards each other or away from each other. When the two second dust-adhesive rollers 14 move towards each other, they can come into contact with the outer walls on both sides of the folded leather layer 4 to clean the impurities attached to the outer walls on both sides of the folded leather layer 4. This will prevent impurities from remaining on the outer walls on both sides of the folded leather layer 4, which would result in surface defects on the leather belt body 28 produced and reduce the quality of the leather belt body 28.

[0045] After a period of use, the surfaces of the first dust-adhesive roller 13 and the two second dust-adhesive rollers 14 will be covered with a lot of impurities. By loosening the first nut and the second nut in sequence, the operator can manually push the first dust-adhesive roller 13 and the two second dust-adhesive rollers 14 away from the mounting frame 10 to clean the impurities adhering to the surfaces of the first dust-adhesive roller 13 and the two second dust-adhesive rollers 14, so as to facilitate the subsequent use of the first dust-adhesive roller 13 and the two second dust-adhesive rollers 14.

[0046] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A full-coverage leather belt, characterized in that, It includes a leather layer (4), an adhesive part (33) and a sewing part (32). The adhesive part (33) is located on the inner wall of the leather layer (4), and the sewing part (32) is located at the two ends of the leather layer (4). After the two ends of the leather layer (4) are folded inward, the adhesive part (33) is driven to enclose and form an injection chamber (31).

2. The full-coverage leather belt according to claim 1, characterized in that, The plastic injected into the injection chamber (31) causes the folded adhesive parts (33) to stick together. The stitched parts (32) at the edge of the folded leather layer (4) are stitched together by a stitching device, so that the interior of the leather layer (4) forms a closed structure, forming the leather belt body (28).

3. An apparatus for preparing a full-coverage leather belt according to any one of claims 1-2, characterized in that, The device includes a mounting frame (10), with a first conveying roller (5) rotatably mounted on one top end of the mounting frame (10). The leather layer (4) is placed on the surface of the first conveying roller (5). The back of the mounting frame (10) is provided with an injection mechanism for injecting plastic into the injection chamber (31). The top of the mounting frame (10) is located below the injection mechanism and is provided with a first cleaning mechanism and a second cleaning mechanism for cleaning the outer walls on both sides of the leather layer (4). The top of the mounting frame (10) is provided with a sewing mechanism for automatically sewing the edge of the folded leather layer (4) at the center. The other top end of the mounting frame (10) is provided with a conveying mechanism.

4. The apparatus for preparing a full-coverage leather belt according to claim 3, characterized in that, The glue injection mechanism includes a glue barrel (1), an installation platform is provided on the back of the mounting frame (10), the glue barrel (1) is installed on the top of the installation platform, an extruder (2) is installed at the bottom end of the glue barrel (1) near the leather layer (4), and a glue injection head (3) is installed at the end of the extruder (2) away from the glue barrel (1).

5. The apparatus for preparing a full-coverage leather belt according to claim 3, characterized in that, The sewing mechanism includes a sewing machine (6), which is installed at the top center of the mounting frame (10). A connecting frame is installed on the front of the sewing machine (6), and a shaping roller (7) is installed on the top of the end of the connecting frame away from the sewing machine (6).

6. The apparatus for preparing a full-coverage leather belt according to claim 3, characterized in that, The conveying mechanism includes a conveyor belt (9), and a housing is installed at the other end of the top of the mounting frame (10). The conveyor belt (9) is rotatably connected to the housing through two internally arranged drive shafts. A second conveying roller (8) is installed at one end of the housing in an inclined state.

7. The apparatus for preparing a full-coverage leather belt according to claim 3, characterized in that, The first cleaning mechanism includes a fixed frame (11) mounted on a mounting bracket (10). The fixed frame (11) has a first sliding groove (15) inside. A first slider (18) is slidably installed inside the first sliding groove (15). The top of the fixed frame (11) has a first through groove (16) communicating with the first sliding groove (15). The top of the first slider (18) is equipped with a first screw (19) that slides back and forth inside the first through groove (16). The top of the first screw (19) is threaded with a first nut.

8. The apparatus for preparing a full-coverage leather belt according to claim 7, characterized in that, The bottom end of the first slider (18) is connected to the first mounting base (17) via two electric telescopic rods (21), and the first dust roller (13) is rotatably mounted inside the first mounting base (17).

9. The apparatus for preparing a full-coverage leather belt according to claim 3, characterized in that, The second cleaning mechanism includes a fixed plate (12) mounted on a mounting bracket (10). The top of the fixed plate (12) is provided with a second sliding groove (22). A second slider (25) is slidably installed inside the second sliding groove (22). The bottom of the fixed plate (12) is provided with a second through groove (23) that communicates with the second sliding groove (22). A second screw (26) that slides back and forth inside the second through groove (23) is installed at the bottom end of the second slider (25). A second nut is threaded onto the bottom end of the second screw (26).

10. The apparatus for preparing a full-coverage leather belt according to claim 9, characterized in that, A rectangular block (24) is installed at the top of the second slider (25). A groove is provided inside the rectangular block (24). A double-ended lead screw (27) is rotatably installed inside the groove. A drive motor (20) with its output end connected to one end of the double-ended lead screw (27) is installed on one side of the outer wall of the rectangular block (24). Two moving blocks (29) are threaded on the outer wall of the double-ended lead screw (27). A second mounting seat (30) is installed at the top of each of the two moving blocks (29). A second dust-adhesive roller (14) is rotatably installed inside each of the two second mounting seats (30).

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