Leather punching device for leather bag processing

Abstract

The utility model discloses a leather punching equipment for leather bag processing specifically relates to a leather punching equipment for leather bag processing, including base, the support board upper end places and has the scrap box, the scrap box front end middle part fixed mounting has the handle, the base upper end middle part is equipped with a plurality of round hole grooves, the base upper end rear part fixedly connected with L type frame, the L type frame horizontal part upper end fixedly connected with the hydraulic cylinder, the hydraulic cylinder output fixedly connected with the punching mechanism, the punching mechanism middle part fixedly connected with two fixed mechanisms, two fixed mechanisms lower end all fixedly connected with two polishing devices. The utility model discloses a leather punching equipment for leather bag processing is provided with fixed mechanism, and the mechanism is equipped with spring and telescopic link, can effectively solve the leather position deviation caused in the punching process and lead to the hole position deviation, reduces the pressure to the leather surplus on the basis of completing the fixation to the leather to the leather and avoids the irreversible indentation of leather.

Description

Technical Field

[0001] This utility model relates to the field of leather punching technology, and in particular to a leather punching device for leather bag processing. Background Technology

[0002] With the booming development of the fashion industry, leather bags, as an important accessory that combines practicality and decoration, are experiencing continuous growth in market demand. Consumers are paying more and more attention to the quality, design and craftsmanship details of leather bags, which puts forward higher requirements for the leather bag processing industry.

[0003] In the manufacturing process of leather bags, punching and threading is a key step. Punching not only provides a foundation for subsequent threading and fixing of components (such as decorative buckles, handles, etc.), but also enhances the beauty and uniqueness of the leather bag through specific hole patterns and threading methods. For example, some high-end brands use exquisite punching and threading techniques to create unique patterns or designs, thereby enhancing the artistic value of the product.

[0004] Traditional manual punching relies mainly on workers using simple tools such as awls and punches. This method is extremely inefficient and cannot meet the requirements of rapid delivery in large-scale production. Moreover, the accuracy of manual punching is difficult to guarantee, and deviations in hole position and inconsistent hole diameters often occur. This causes great trouble for subsequent threading, and uneven tension of the thread during threading affects the stability of the overall structure of the bag. At the same time, the edges of the holes after manual punching are rough and almost never polished, which affects both the appearance and the quality of the bag. Even if some mechanical punching equipment is used, most of them only have the function of punching holes and lack the step of polishing the holes. The subsequent manual polishing is still required, which increases labor and time costs.

[0005] Chinese Patent Publication No. CN211645284U discloses a leather perforation device, belonging to the field of bag manufacturing technology. The structure includes a machine body and a worktable mounted on the machine body. A controller is located on the left side of the machine body, and a motor is located on the right side of the machine body. A screw is connected to the motor shaft. The screw is installed inside the machine body. A limit rod is provided parallel above the screw. A threaded tube is sleeved on the screw. The controller controls the rotation of the motor, causing the screw thread to drive the threaded tube to move to the left. The leftward displacement of the trapezoidal block pushes the connecting rod with a return spring down through a slope on one side, causing the perforation head at the bottom of the connecting rod to move towards the worktable to perforate the leather. At the same time, a vacuum cleaner is connected to the connecting cavity through a vacuum pipe, a three-way pipe, and a flexible hose in sequence. It can promptly suck up the leather fragments generated after the perforation head is perforated under the action of the vacuum pipe. It not only has an environmentally friendly cleaning function, but also has a good perforation effect.

[0006] The aforementioned patent documents still have the following defects in practice:

[0007] The lack of a fixed structure caused the leather to shift during the punching process, resulting in hole misalignment. Additionally, the absence of a polishing step for the holes necessitates manual polishing afterward, increasing both labor and time costs. Utility Model Content

[0008] The main purpose of this utility model is to provide a leather punching device for leather bag processing, which can effectively solve the problems of leather position deviation during punching, resulting in hole position deviation, and the need for subsequent manual polishing of the holes, which increases labor and time costs.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0010] A leather punching device for bag processing includes a base, a support plate fixedly connected to the front side of the middle of the base, a waste bin placed on the upper part of the support plate, a handle fixedly installed at the front center of the waste bin, a plurality of circular slots opened in the middle of the upper end of the base, an L-shaped frame fixedly connected to the rear of the upper end of the base, a hydraulic cylinder fixedly connected to the upper end of the horizontal part of the L-shaped frame, a punching mechanism fixedly connected to the output end of the hydraulic cylinder, two fixing mechanisms fixedly connected to the middle of the punching mechanism, and a polishing device fixedly connected to the lower end of each of the two fixing mechanisms.

[0011] Preferably, the punching mechanism includes a connecting rod, the upper end of which is fixedly connected to the output end of the hydraulic cylinder, and a pressure plate is fixedly connected to the lower end of the connecting rod. Several punching rods are fixedly connected to the left and right sides of the lower end of the pressure plate.

[0012] Preferably, each of the aforementioned perforating rods corresponds to a circular slot, and each perforating rod can pass through the corresponding circular slot.

[0013] Preferably, the fixing mechanism includes a six-claw bracket, which is fixedly connected to the middle of the connecting rod on the side near the drilling mechanism. A connecting plate is fixedly connected to the lower part of the six-claw bracket, and a telescopic rod is fixedly connected to the lower end of the connecting plate. A telescopic sleeve is installed at the lower end of the telescopic rod, and a connecting plate is fixedly connected to the lower end of the telescopic sleeve. A spring is sleeved on the outer surface of the telescopic rod, and the upper end of the spring is fixedly connected to the lower end of the connecting plate, while the lower end of the spring is fixedly connected to the upper end of the connecting plate.

[0014] Preferably, the polishing device includes two locking mechanisms. The upper ends of the two locking mechanisms are respectively fixedly connected to the lower ends of the fixing mechanism on the same side. A cross plate is fixedly connected to the side of the two locking mechanisms closest to each other. A strip plate is fixedly connected to the end of the cross plate near the drilling mechanism. A plurality of polishing rods are fixedly connected to the upper end of the strip plate. A limit strip is fixedly connected to the upper end of the cross plate. A limit block is sleeved on the outer surface of the limit strip. The lower end of the limit block is fixedly connected to the upper end of the base. A fixing block is sleeved on the side of the cross plate away from the drilling mechanism. The upper end of the fixing block is fixedly connected to the upper part of the base.

[0015] Preferably, each of the aforementioned strip plates corresponds to a circular slot, and each strip plate can pass through the corresponding circular slot.

[0016] Preferably, the engaging mechanism includes a movable plate and a cylindrical block. The upper end of the movable plate is fixedly connected to the lower end of the six-claw frame. The movable plate has an irregular groove inside. The outer surface of the cylindrical block is fixedly connected to a cross plate. Both sides of the cylindrical block have cylindrical grooves. The inner wall of the groove is fixedly connected to a semi-circular block by a spring.

[0017] Preferably, the upper width of the irregular groove is the same as the lower width of the irregular groove, and both widths are greater than the middle width of the irregular groove, wherein the middle width of the irregular groove is wider than the length of the cylindrical block.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In this embodiment, a fixing mechanism is set up during implementation. The mechanism is equipped with a spring and a telescopic rod, which can effectively solve the problem of the leather position shifting during the punching process, resulting in hole position deviation. At the same time, it reduces the excessive pressure on the leather while fixing it, and avoids irreversible indentations on the leather.

[0020] 2. In this embodiment, a grinding device is set up during the implementation process. After the drilling is completed, the grinding rod moves upward to grind the hole, which solves the problem that the burrs generated by drilling still need to be manually ground later, which increases the labor and time costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial structural schematic diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the grinding device of this utility model;

[0024] Figure 4 This is a schematic diagram of the engaging mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the punching mechanism of this utility model;

[0026] Figure 6 For the present utility model Figure 2 Enlarged diagram of point A in the middle.

[0027] In the diagram: 1. Base; 2. Support plate; 3. Handle; 4. Waste bin; 5. Grinding device; 51. Clamping mechanism; 511. Moving plate; 512. Cylindrical block; 513. Semicircular block; 514. Irregular groove; 52. Cross plate; 53. Strip plate; 54. Grinding rod; 55. Limiting strip; 56. Limiting block; 57. Fixing block; 6. Fixing mechanism; 61. Six-claw bracket; 62. Connecting plate one; 63. Spring; 64. Connecting plate two; 65. Telescopic rod; 66. Telescopic sleeve; 7. L-shaped frame; 8. Hydraulic cylinder; 9. Drilling mechanism; 91. Connecting rod; 92. Pressure plate; 93. Drilling rod; 10. Circular hole groove. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] Example 1, as Figure 1 As shown, a leather punching device for leather bag processing includes a base 1, a support plate 2 fixedly connected to the front side of the middle of the base 1, a waste bin 4 placed on the upper end of the support plate 2, a handle 3 fixedly installed at the middle of the front end of the waste bin 4, a plurality of circular slots 10 opened in the middle of the upper end of the base 1, an L-shaped frame 7 fixedly connected to the rear of the upper end of the base 1, a hydraulic cylinder 8 fixedly connected to the upper end of the horizontal part of the L-shaped frame 7, a punching mechanism 9 fixedly connected to the output end of the hydraulic cylinder 8, two fixing mechanisms 6 fixedly connected to the middle of the punching mechanism 9, and a polishing device 5 fixedly connected to the lower end of each of the two fixing mechanisms 6;

[0030] In this embodiment, the leather is first placed on the upper part of the base 1. After aligning the position to be punched, the hydraulic cylinder 8 is started. The output end of the hydraulic cylinder 8 drives the punching mechanism 9 to move downward. The punching mechanism 9 drives the fixing mechanism 6 to move downward. The lower end of the fixing mechanism 6 contacts the leather and applies pressure to fix the leather. The punching mechanism 9 continues to move downward until the leather is punched. The leather waste generated by punching falls into the inner cavity of the waste box 4.

[0031] Then, the hydraulic cylinder 8 is started in reverse. The hydraulic cylinder 8 drives the punching mechanism 9 and the fixing mechanism 6 to move upward. The fixing mechanism 6 drives the polishing device 5 to move upward and polish the punched holes. As the punching mechanism 9 rises, the fixing mechanism 6 gradually releases the fixation on the leather. The polishing device 5 returns to its original position and removes the punched leather. After all the leather has been punched, the staff grabs the handle 3 to remove the waste bin 4 and pours out the waste material inside the waste bin 4.

[0032] To punch holes in the leather, see [link / reference]. Figure 5 The punching mechanism 9 includes a connecting rod 91, the upper end of which is fixedly connected to the output end of the hydraulic cylinder 8, and a pressure plate 92 is fixedly connected to the lower end of the connecting rod 91. Several punching rods 93 are fixedly connected to the left and right sides of the lower end of the pressure plate 92.

[0033] A number of punching rods 93 are all corresponding to the circular slots 10, and each punching rod 93 can pass through the corresponding circular slots 10.

[0034] During implementation, the output end of the hydraulic cylinder 8 drives the connecting rod 91 to move downward, and the connecting rod 91 drives the pressure plate 92 and the punching rod 93 to move downward. The punching rod 93 is corresponding to the circular slot 10, and the punching rod 93 can pass through the corresponding circular slot 10. When the lower end of the pressure plate 92 contacts the upper end of the base 1, the punching rod 93 penetrates the inside of the circular slot 10 and punches holes in the leather.

[0035] Further reading Figure 2 , Figure 6 The fixing mechanism 6 includes a six-claw bracket 61. The side of the six-claw bracket 61 closest to the drilling mechanism 9 is fixedly connected to the middle of the connecting rod 91. A connecting plate 62 is fixedly connected to the lower part of the six-claw bracket 61. A telescopic rod 65 is fixedly connected to the lower end of the connecting plate 62. A telescopic sleeve 66 is installed at the lower end of the telescopic rod 65. A connecting plate 64 is fixedly connected to the lower end of the telescopic sleeve 66. A spring 63 is sleeved on the outer surface of the telescopic rod 65. The upper end of the spring 63 is fixedly connected to the lower end of the connecting plate 62, and the lower end of the spring 63 is fixedly connected to the upper end of the connecting plate 64.

[0036] During implementation, the six-claw bracket 61 has three branches in the vertical direction. The lower end of the middle branch is fixedly connected to the connecting plate 62. The six-claw bracket 61 drives the connecting plate 62, spring 63, and connecting plate 64 to move downwards until the lower end of the connecting plate 64 contacts the leather. At this time, the six-claw bracket 61 continues to move downwards, the spring 63 begins to compress, and the connecting plate 62 also begins to retract into the inner cavity of the telescopic sleeve 66. The above devices can reduce the pressure of the connecting plate 64 on the leather. After the leather is fixed, the pressure on the leather is reduced, and irreversible indentations are avoided. At the same time, the telescopic rod 65 and the telescopic sleeve 66 also play a limiting role, so that the moving direction of the spring 63 and the connecting plate 64 is consistent with that of the connecting plate 62.

[0037] Example 2: To polish the punched leather holes and reduce burrs caused by punching, refer to... Figure 2 , Figure 3 The grinding device 5 includes two locking mechanisms 51. The upper ends of the two locking mechanisms 51 are respectively fixedly connected to the lower ends of the fixing mechanism 6 on the same side. The two locking mechanisms 51 are fixedly connected to a cross plate 52 on the side closest to each other. A strip plate 53 is fixedly connected to the end of the cross plate 52 near the drilling mechanism 9. Several grinding rods 54 are fixedly connected to the upper end of the strip plate 53. A limit strip 55 is fixedly connected to the upper end of the cross plate 52. A limit block 56 is sleeved on the outer surface of the limit strip 55. The lower end of the limit block 56 is fixedly connected to the upper end of the base 1. A fixing block 57 is sleeved on the side of the cross plate 52 away from the drilling mechanism 9. The upper end of the fixing block 57 is fixedly connected to the upper part of the base 1.

[0038] Several strip plates 53 correspond to circular slots 10, and each strip plate 53 can pass through the corresponding circular slot 10;

[0039] During implementation, the two engaging mechanisms 51 are fixedly connected to the front and rear branches of the six-jaw bracket 61, respectively. The six-jaw bracket 61 drives the engaging mechanisms 51 to move downward until the upper part of the irregular groove 514 contacts the upper end of the cross plate 52. At this time, the engaging mechanisms 51 engage with the cross plate 52. After the reverse start hydraulic cylinder 8 is activated, the engaging mechanisms 51 drive the cross plate 52, and the cross plate 52 drives the grinding rod 54, the strip plate 53, and the limiting strip 55 to move upward. The strip plate 53 corresponds to the circular hole groove 10. It can pass through the corresponding circular slot 10. When the upper end of the cross plate 52 contacts the upper part of the base 1, the strip plate 53 passes through the circular slot 10 to polish the leather with holes. Then the locking mechanism 51 continues to move upward, and the cross plate 52 slides from the upper part of the irregular groove 514 to the lower part of the irregular groove 514 until the lower end of the cross plate 52 contacts the bottom wall of the inner cavity of the fixing block 57. The fixing block 57 limits the position and movement direction of the cross plate 52, and the limiting block 56 fixes the movement direction of the limiting strip 55.

[0040] For further details, please refer to [link / reference]. Figure 4 The engaging mechanism 51 includes a movable plate 511 and a cylindrical block 512. The upper end of the movable plate 511 is fixedly connected to the lower end of the six-jaw bracket 61. The movable plate 511 has an irregular groove 514 inside. The outer surface of the cylindrical block 512 is fixedly connected to the cross plate 52. Both sides of the cylindrical block 512 have cylindrical grooves. The inner wall of the groove is fixedly connected to a semi-circular block 513 by a spring.

[0041] The upper width of the irregular groove 514 is the same as the lower width of the irregular groove 514, and both widths are greater than the middle width of the irregular groove 514. The middle width of the irregular groove 514 is wider than the length of the cylindrical block 512.

[0042] During implementation, as the moving plate 511 falls, the semicircular block 513 is first compressed into the grooves on both sides of the cylindrical block 512. When the cylindrical block 512 reaches the upper part of the irregular groove 514, the springs on both sides of the cylindrical block 512 are released, and the semicircular block 513 extends out and engages with the upper part of the irregular groove 514. Then, the moving plate 511 can drive the cylindrical block 512, the semicircular block 513, and the cross plate 52 to move upward until the upper end of the cross plate 52 contacts the upper part of the base 1. The moving plate 511 continues to rise, and the semicircular block 513 is compressed back into the grooves on both sides of the cylindrical block 512 until the cylindrical block 512 moves to the lower part of the irregular groove 514. At this time, the cross plate 52 falls back to its initial state.

[0043] It should be noted that the specific installation method, circuit connection method and control method of the hydraulic cylinder 8 used in this utility model are all conventional designs, and will not be described in detail in this utility model.

[0044] The working principle of this utility model is as follows: First, place the leather on the upper end of the base 1, align it with the position to be punched, and then start the hydraulic cylinder 8. The output end of the hydraulic cylinder 8 drives the connecting rod 91 to move downward. The connecting rod 91 drives the pressure plate 92 and the punching rod 93 to move downward. When the lower end of the pressure plate 92 contacts the upper end of the base 1, the punching rod 93 penetrates the inside of the circular slot 10 and punches a hole in the leather. At the same time, the connecting rod 91 drives the six-claw bracket 61 to move downward. The six-claw bracket 61 drives the connecting plate 62, the spring 63, and the connecting plate 64 to move downward until the connecting plate 64... The lower end of 64 contacts the leather, applying pressure to fix the leather. At this time, the six-claw bracket 61 continues to move downward, the spring 63 begins to compress, and the connecting plate 62 also begins to retract into the inner cavity of the telescopic sleeve 66, reducing the excessive pressure applied to the leather. The punching mechanism 9 continues to move downward. At the same time, the six-claw bracket 61 drives the locking mechanism 51 to move downward until the upper part of the irregular groove 514 contacts the upper end of the cross plate 52. At this time, the locking mechanism 51 locks with the cross plate 52, and the punching rod 93 punches holes in the leather. The leather waste generated by punching falls into the inner cavity of the waste box 4.

[0045] Then, the hydraulic cylinder 8 is activated in reverse. The hydraulic cylinder 8 drives the punching mechanism 9 and the fixing mechanism 6 to move upward. The fixing mechanism 6 drives the locking mechanism 51 to move upward. The locking mechanism 51 drives the cross plate 52. The cross plate 52 drives the polishing rod 54, the strip plate 53 and the limiting strip 55 to move upward. The strip plate 53 passes through the circular hole groove 10 to polish the leather that has been punched. As the connecting rod 91 rises, the fixing mechanism 6 gradually releases the fixation on the leather. The six-claw bracket 61 drives the locking mechanism 51 to continue to move upward. The cross plate 52 slides from the upper part of the irregular groove 514 to the lower part of the irregular groove 514 until the polishing device 5 returns to its original position. The worker takes away the punched leather. After all the leather has been punched, the worker grabs the handle 3 to take away the waste bin 4 and pours out the waste material inside the waste bin 4.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A leather punching apparatus for leather bag processing, comprising a base (1), characterized in that: A support plate (2) is fixedly connected to the front side of the middle part of the base (1). A waste bin (4) is placed on the upper end of the support plate (2). A handle (3) is fixedly installed in the middle of the front end of the waste bin (4). Several circular holes (10) are opened in the middle of the upper end of the base (1). An L-shaped frame (7) is fixedly connected to the rear of the upper end of the base (1). A hydraulic cylinder (8) is fixedly connected to the upper end of the horizontal part of the L-shaped frame (7). A drilling mechanism (9) is fixedly connected to the output end of the hydraulic cylinder (8). Two fixing mechanisms (6) are fixedly connected in the middle of the drilling mechanism (9). A grinding device (5) is fixedly connected to the lower end of each of the two fixing mechanisms (6).

2. The leather punching apparatus for leather bag processing according to claim 1, characterized in that: The punching mechanism (9) includes a connecting rod (91), the upper end of which is fixedly connected to the output end of the hydraulic cylinder (8), and a pressure plate (92) is fixedly connected to the lower end of the connecting rod (91). Several punching rods (93) are fixedly connected to the left and right sides of the lower end of the pressure plate (92).

3. The leather punching apparatus for leather bag processing according to claim 2, characterized in that: Each of the aforementioned punching rods (93) corresponds to a circular slot (10), and each punching rod (93) can pass through the corresponding circular slot (10).

4. The leather punching apparatus for leather bag processing according to claim 2, characterized in that: The fixing mechanism (6) includes a six-claw bracket (61), which is fixedly connected to the middle of the connecting rod (91) on the side near the drilling mechanism (9). A connecting plate (62) is fixedly connected to the lower part of the six-claw bracket (61). A telescopic rod (65) is fixedly connected to the lower end of the connecting plate (62). A telescopic sleeve (66) is installed at the lower end of the telescopic rod (65). A connecting plate (64) is fixedly connected to the lower end of the telescopic sleeve (66). A spring (63) is sleeved on the outer surface of the telescopic rod (65). The upper end of the spring (63) is fixedly connected to the lower end of the connecting plate (62), and the lower end of the spring (63) is fixedly connected to the upper end of the connecting plate (64).

5. The leather punching apparatus for leather bag processing according to claim 4, characterized in that: The polishing device (5) includes two locking mechanisms (51). The upper ends of the two locking mechanisms (51) are respectively fixedly connected to the front and rear sides of the lower end of the fixing mechanism (6) on the same side. The two locking mechanisms (51) are fixedly connected to a cross plate (52) on the side close to each other. A strip plate (53) is fixedly connected to the end of the cross plate (52) near the drilling mechanism (9). Several polishing rods (54) are fixedly connected to the upper end of the strip plate (53). A limiting strip (55) is fixedly connected to the upper end of the cross plate (52). A limiting block (56) is sleeved on the outer surface of the limiting strip (55). The lower end of the limiting block (56) is fixedly connected to the upper end of the base (1). A fixing block (57) is sleeved on the side of the cross plate (52) away from the drilling mechanism (9). The upper end of the fixing block (57) is fixedly connected to the upper part of the base (1).

6. The leather punching apparatus for leather bag processing according to claim 5, characterized in that: Each of the aforementioned strip plates (53) corresponds to a circular slot (10), and each strip plate (53) can pass through the corresponding circular slot (10).

7. The leather punching apparatus for leather bag processing according to claim 5, characterized in that: The engaging mechanism (51) comprises a moving plate (511) and a cylindrical block (512), the upper end of the moving plate (511) is fixedly connected with the lower end of the six-jaw frame (61), the moving plate (511) is internally provided with a special-shaped groove (514), the outer surface of the cylindrical block (512) is fixedly connected with the cross plate (52), and the two sides of the cylindrical block (512) are both provided with a cylindrical groove, and the inner wall of the groove is fixedly connected with a semicircular block (513) through a spring.

8. The leather punching apparatus for leather bag processing according to claim 7, characterized in that: The upper part of the special-shaped groove (514) has the same width as the lower part of the special-shaped groove (514), and the width of the upper part and the lower part is greater than the width of the middle part of the special-shaped groove (514), and the width of the middle part of the special-shaped groove (514) is greater than the length of the cylindrical block (512).

Images