Leather punching cutter

Abstract

The utility model relates to the technical field of leather processing tools, in particular to a leather punching cutter which comprises a handle and a punching cutter head arranged at the front end of the handle, a punching hole is formed in the end of the punching cutter head, a cutter edge used for cutting leather is arranged on the periphery of the punching hole, a cutter mounting hole is horizontally formed in the end of the cutter head part, and the cutter mounting hole is communicated with the handle. The end, away from the tool edge, of the punching tool bit is a fastening part, the punching tool bit is connected with the tool mounting hole in an inserted mode through the fastening part, a fixing hole is formed in the top end face of the tool bit part, the fixing hole and the tool mounting hole are of a communicated structure, a fastener is arranged in the fixing hole, and the fastener can extend into the tool mounting hole. The tool bit part is arranged in the tool mounting hole and abuts against and is fixed to the fastening part, so that the punching tool bits of different sizes and shapes can be located in the tool mounting hole of the tool bit part to be replaced, the punching tool bit can adapt to punching of various holes, and the adaptability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of leather processing tools, in particular to a leather punching tool. Background Art

[0002] Leather is a denatured, non-perishable animal skin obtained through physical and chemical processes such as depilation and tanning. Leather is made of natural protein fibers tightly woven in three dimensions. Its surface has a special grain layer with natural grain and luster, and feels comfortable. Existing leather is generally used in the product fields of footwear, car seat cushions, fixtures and wearable accessories.

[0003] Existing watch straps generally use relatively advanced artificially processed leather straps, and the surface of the leather straps needs to be punched with several holes for wearing. Since different styles of straps require holes of different shapes, leather processors are generally equipped with a variety of punching tools. In view of these current situations, there is an urgent need to develop a leather punching tool to meet the needs of actual use. Utility Model Content

[0004] The utility model aims to provide a leather punching tool, which is used to solve the defect that the existing tool can only punch holes of one shape.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A leather punching tool comprises a handle and a punching cutter head arranged at the front end of the handle, a punching hole is provided at the end of the punching cutter head, the periphery of the punching cutter hole is a cutting edge for cutting leather, the end of the handle close to the punching cutter head is a cutter head, the end of the handle away from the punching cutter head is a hand-held part, a horizontally arranged cutter mounting hole is provided at the end of the cutter head, the end of the punching cutter head away from the cutting edge is a fastening part, the punching cutter head is plugged into the cutter mounting hole through the fastening part, a fixing hole is provided on the top surface of the cutter head, the fixing hole and the cutter mounting hole are in a conductive structure, a fastener is provided inside the fixing hole, the fastener can extend into the inside of the cutter mounting hole and is fixed by contact with the fastening part.

[0007] In the above description, as a further solution, the fastener is composed of a fastening bolt, which is threadedly connected to the inside of the fixing hole, and the bottom end of the fastening bolt extends through the fixing hole to the inside of the tool mounting hole to abut and fix with the fastening part.

[0008] In the above description, as a further solution, a clamping buckle seat is provided on the top surface of the cutter head, and the bottom of the clamping buckle seat on the side away from the punching cutter head is rotatably connected to the head. A downwardly protruding convex buckle is provided on the side of the clamping buckle seat close to the punching cutter head, and a snap-fitting opening matching the convex buckle is provided on the side wall of the fastening part, and the convex buckle can extend through the fixing hole to the interior of the tool mounting hole and be snap-fitted and fixed with the snap-fitting opening.

[0009] In the above description, as a further solution, a torsion spring is provided at the connection between the clamping seat and the cutter head, and the clamping seat is movably connected to the cutter head through the torsion spring.

[0010] In the above description, as a further solution, a toggle block is provided at the top of the side of the clamping seat away from the punching cutter head, and the toggle block is tilted upward toward the hand-held part.

[0011] In the above description, as a further solution, a discharge slot is provided on one side of the middle portion of the punching cutter head, the discharge slot is located on the outer side of the cutter head, and a conductive structure is formed between the discharge slot and the punching hole.

[0012] In the above description, as a further solution, a material guiding arc surface is provided inside the material discharging slot, and one side of the material guiding arc surface is inclined downward along the direction of the punching hole.

[0013] The beneficial effects produced by the utility model are as follows:

[0014] A leather punching tool of the present application sets a split structure between the punching tool head and the handle, and tightens and loosens the punching tool head by means of a fastener provided inside the fixing hole of the tool head portion, so that punching tool heads of different sizes and shapes can be replaced in the tool mounting hole of the tool head portion, so that the tool can be adapted to the punching of a variety of holes, has strong adaptability, and solves the need for leather processors to be equipped with a variety of tools, thereby reducing the equipment reserves of leather processors. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of a leather punching tool according to the first embodiment;

[0016] Figure 2 This is a schematic diagram of the structure of the punching cutter head described in Example 1;

[0017] Figure 3 This is a schematic diagram of the structure of the punching cutter head described in Example 1;

[0018] Figure 4 This is a schematic diagram of the structure of the punching cutter head described in Example 1;

[0019] Figure 5 This is a schematic diagram of the three-dimensional structure of a leather punching tool described in Example 2;

[0020] Figure 6 This is a schematic diagram of the structural decomposition of a leather punching tool described in Example 2;

[0021] Figure 7 It is a partial cross-sectional structural schematic diagram of a leather punching tool described in Example 2;

[0022] In the figure: 1-handle, 11-handling part, 12-cutter head, 121-fixing hole, 123-cutter mounting hole, 2-punching cutter head, 21-punching hole, 211-knife edge, 22-discharging slot, 221-material guiding arc surface, 23-fastening part, 231-buckle opening, 3-fastening bolt, 4-clamping buckle seat, 41-sliding block, 421-convex buckle, 5-torsion spring. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with the embodiments and drawings, and the contents mentioned in the implementation modes are not intended to limit the present invention. The present invention is described in detail below in conjunction with the drawings.

[0024] See also Figure 1-4 A leather punching tool specifically implemented therein comprises a handle 1 and a punching cutter head arranged at the front end of the handle 1, a punching hole 21 is provided at the end of the punching cutter head, the periphery of the punching hole 21 is a cutting edge 211 for cutting leather, the end of the handle 1 close to the punching cutter head is a cutter head 12, the end of the handle 1 away from the punching cutter head is a hand-held part 11, a horizontally arranged cutter mounting hole 123 is provided at the end of the cutter head 12, the end of the punching cutter head away from the cutting edge 211 is a fastening part 23, the punching cutter head is plugged into the cutter mounting hole 123 through the fastening part 23, a fixing hole 121 is provided at the top end surface of the cutter head 12, the fixing hole 121 and the cutter mounting hole 123 are in a conductive structure, a fastener is provided inside the fixing hole 121, the fastener can extend to the inside of the cutter mounting hole 123, and is fixed by contact with the fastening part 23.

[0025] Specific as Figure 1 As shown, the fastener is composed of a fastening bolt 3, which is threadedly connected to the interior of the fixing hole 121, and the bottom end of the fastening bolt 3 passes through the fixing hole 121 and extends to the interior of the tool mounting hole 123 to abut and fix with the fastening part 23.

[0026] Among them, the punching cutter head preferably has a structure such as Figure 2As shown, a discharge slot 22 is provided on one side of the middle part of the punching cutter head, the discharge slot 22 is located on the outside of the cutter head 12, and there is a conductive structure between the discharge slot 22 and the punching hole 21. A material guiding arc surface 221 is provided inside the discharge slot 22, and one side of the material guiding arc surface 221 is tilted downward along the direction of the punching hole 21.

[0027] When the punching head is inserted into the leather, an opening can be cut out of the leather by the blade 211 at the periphery of the punching head, and the top of the hand-held part 11 is struck with a hammer so that the punching head can be inserted into the inside of the leather. At the same time, the waste leather entering the punching hole 21 can be discharged through the discharge slot 22 on one side of the punching head. At the same time, the waste leather can move along the guide arc surface 221 toward the discharge slot 22, thereby discharging the waste.

[0028] The punching cutter head and the handle 1 are arranged as a split structure, and a fastener consisting of a fastening bolt 3 is provided inside the fixing hole 121 of the cutter head 12 to tighten and loosen the punching cutter head, so that punching cutter heads of different sizes and shapes can be replaced in the tool mounting hole 123 of the cutter head 12, so that it can adapt to the punching of various holes. Specifically, the replaceable blade 211 has a rectangular, triangular, circular, elliptical and other shapes of holes, and has strong adaptability. At the same time, it solves the need for leather processors to be equipped with a variety of cutting tools, reducing the equipment reserves of leather processors.

[0029] Embodiment 2

[0030] See also Figure 5-7 , a leather punching tool is specifically implemented, and the same structure between the second embodiment and the first embodiment is no longer repeated, wherein a clamping buckle seat 4 is provided on the top surface of the cutter head 12, and the bottom of the clamping buckle seat 4 away from the punching cutter head is rotatably connected to the head, and a downwardly protruding convex buckle 421 is provided on the side of the clamping buckle seat 4 close to the punching cutter head, and a side wall of the fastening portion 23 is provided with a snap-fitting opening 231 matching the convex buckle 421, and the convex buckle 421 can extend through the fixing hole 121 to the inside of the tool mounting hole 123 and be snap-fitted and fixed with the snap-fitting opening 231.

[0031] A torsion spring 5 is provided at the connection between the clamping seat 4 and the cutter head 12, and the clamping seat is movably connected to the cutter head 12 through the torsion spring 5. A toggle block 41 is provided on the top of the side of the clamping seat 4 away from the punching cutter head, and the toggle block 41 is tilted upward toward the hand-held part 11.

[0032] When the leather processor needs to replace the punching cutter head, the tilting block 41 on one side of the clamping buckle seat 4 is pressed, so that the side of the clamping buckle seat 4 close to the punching cutter head swings along the torsion spring 5, and at the same time, the convex buckle 421 on one side of the clamping buckle seat 4 can be separated from the buckling opening 231 at the end of the punching cutter head, so that the punching cutter head can be quickly separated from the cutter head 12, achieving a quick disassembly effect;

[0033] Similarly, by vertically arranging a plurality of punching cutter heads along the spacing of the cutter mounting hole 123, the toggle block 41 can be pressed and the punching cutter heads can be inserted into the inside of the cutter mounting hole 123. By releasing the toggle block 41, the clamping buckle seat 4 can be quickly reset by the elastic stress of the torsion spring 5, and the protrusion 421 can extend through the fixing hole 121 to the inside of the cutter mounting hole 123 and quickly snap-fit ​​and fix with the snap-fit ​​opening 231.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this profession can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content disclosed above without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the utility model, which does not depart from the content of the technical solution of the utility model, belongs to the scope of the technical solution of the utility model.

Claims

1. A leather punching tool, comprising a handle and a punching head arranged at the front end of the handle, wherein a punching hole is provided at the end of the punching head, and the periphery of the punching hole is a cutting edge for cutting leather, wherein: The end of the handle close to the punching cutter head is the cutter head portion, the end of the handle away from the punching cutter head is the hand-holding portion, a horizontally arranged cutter mounting hole is provided at the end of the cutter head portion, the end of the punching cutter head away from the cutting edge is the fastening portion, the punching cutter head is plugged into the cutter mounting hole through the fastening portion, a fixing hole is provided on the top surface of the cutter head portion, the fixing hole and the cutter mounting hole are in a conductive structure, a fastener is provided inside the fixing hole, the fastener can extend into the inside of the cutter mounting hole, and is fixed by contact with the fastening portion.

2. The leather punching tool according to claim 1, characterized in that: The fastener is composed of a fastening bolt, which is threadedly connected to the inside of the fixing hole. The bottom end of the fastening bolt passes through the fixing hole and extends to the inside of the tool installation hole to abut and fix with the fastening part.

3. The leather punching tool according to claim 1, characterized in that: The top surface of the cutter head is provided with a clamping buckle seat, and the bottom of the clamping buckle seat on the side away from the punching cutter head is rotatably connected to the head. A downwardly protruding convex buckle is provided on the side of the clamping buckle seat close to the punching cutter head, and a snap-fitting opening matching the convex buckle is provided on the side wall of the fastening part. The convex buckle can extend through the fixing hole to the inside of the tool mounting hole and be snap-fitted and fixed with the snap-fitting opening.

4. The leather punching tool according to claim 3, characterized in that: A torsion spring is provided at the connection between the clamping buckle seat and the cutter head portion, and the clamping buckle seat is movably connected to the cutter head portion through the torsion spring.

5. The leather punching tool according to claim 3, characterized in that: A toggle block is arranged on the top of one side of the clamping buckle seat away from the punching cutter head, and the toggle block is arranged to be tilted upwards toward the hand-held part.

6. A leather punching tool according to any one of claims 1 to 5, characterized in that: A material discharging slot is provided on one side of the middle part of the punching cutter head, the material discharging slot is located on the outer side of the cutter head, and a conductive structure is formed between the material discharging slot and the punching hole.

7. The leather punching tool according to claim 6, characterized in that: A material guiding arc surface is arranged inside the material discharging slot, and one side of the material guiding arc surface is arranged to be tilted downward along the direction of the punching hole.

Images