Self-grinding type bookbinding book perforating machine

Abstract

The utility model discloses a self-grinding type bookbinding book perforating machine which comprises a perforating machine body. The bracket is fixed on the bottom plate; the manual pressing assembly is installed on the support, and a needle rod capable of moving up and down for drilling is fixed to the manual pressing assembly; an autogenous grinder is fixed on the bottom plate, the autogenous grinder comprises an upper cover plate, a lower cover plate and a surrounding plate which form a shell structure, and the upper cover plate is provided with a through hole through which a needle point of a needle rod can penetrate; the grinding sheet is mounted in the shell structure and is obliquely arranged; the limiting block is fixed in the shell structure and can be used for limiting the abrasive disc; the elastic piece is located between the grinding piece and the inner wall of the shell structure and can eject the grinding piece to the limiting block; when the needle point of the needle rod sequentially penetrates through the binding book and the through hole of the upper cover plate, the needle point can be in contact with the abrasive disc, so that the needle point can be sharpened, and the abrasive disc moves to enable the elastic piece to be pressed. The device has the advantages of being simple in structure, low in cost, convenient to use, time-saving, labor-saving and efficient.

Description

Technical Field

[0001] The utility model relates to a binding book punching machine. Background Art

[0002] Binding book punching machines are mostly used for punching and binding bills and are commonly used tools for financial personnel. In the prior art, for example, a bill binding punching machine for financial accounting (CN202222784088.3) is disclosed in a Chinese patent, which specifically discloses a bottom plate; and a punching assembly provided on one side of the bottom plate for punching financial accounting bills; the punching assembly includes: a bracket fixedly connected to the bottom plate; and a pressing rod rotatably connected to the bracket; a convex block is fixedly connected to the pressing rod; a handle is fixedly connected to the side of the pressing rod away from the bracket; a punching nail is slidably connected to the bracket; a limiting block is sleeved on the punching nail; and a groove is fixedly connected to the bottom plate. Currently, the disclosed punching machines do not involve how to sharpen the tip of the needle. In actual use, when used frequently, the tip of the needle needs to be sharpened. Only when it is sharpened can the effort be saved and the efficiency be improved. Summary of the Utility Model

[0003] According to the above deficiencies, the utility model provides a self-sharpening binding book punching machine that can self-complete the sharpening of the tip of the needle.

[0004] The technical solution of the utility model is as follows:

[0005] A self-sharpening binding book punching machine includes a punching machine body, which is provided with:

[0006] A bottom plate;

[0007] A bracket fixed on the bottom plate;

[0008] A manual pressing assembly installed on the bracket, and the manual pressing assembly is fixed with a needle rod that can move up and down for drilling;

[0009] A self-sharpening device is fixed on the bottom plate, and the self-sharpening device includes:

[0010] An upper cover plate, a lower cover plate and a surrounding plate, which form a shell structure, and the upper cover plate is provided with a through hole that can pass through the tip of the needle rod;

[0011] A grinding plate installed inside the shell structure and inclined;

[0012] A limiting block fixed inside the shell structure to limit the grinding plate;

[0013] An elastic member located between the grinding plate and the inner wall of the shell structure, which can push the grinding plate towards the limiting block;

[0014] When the tip of the needle rod passes through the binding book and the through hole of the upper cover plate in sequence, it can touch the grinding plate, so that the tip of the needle can be sharpened, and the grinding plate moves and the elastic member is compressed.

[0015] Preferably, the elastic member is a U-shaped elastic sheet. The two sides of the elastic member and the grinding disc are limited by limit plates, and the limit plates are fixed to the inner wall of the housing structure.

[0016] Preferably, the enclosing plate is provided with threaded holes, and pressing screws are screwed into the threaded holes. The pressing screws can press the U-shaped elastic member to adjust the elastic force.

[0017] Preferably, the enclosing plate is of a conical structure. Correspondingly, the bottom plate is provided with a conical hole, and the conical structure of the enclosing plate is inserted into the conical hole. The enclosing plate can rotate relative to the bottom plate, so as to sharpen the tip of the needle bar from different angles.

[0018] Preferably, the diameter of the upper cover plate is larger than the diameter of the conical structure of the enclosing plate, and the bottom plate is provided with a step, and the cover plate is embedded in the step.

[0019] Preferably, there are four limit blocks. Two of them are fixed to the upper cover plate, and the other two are fixed to the lower cover plate. The four limit blocks respectively limit the four corners of the grinding disc.

[0020] Preferably, the limit block is provided with a threaded hole, and a limit screw passes through the threaded hole and abuts against the grinding disc, so as to adjust the inclination angle of the grinding disc.

[0021] Preferably, the pressing screw is lower than the bottom surface of the bottom plate, and four pressing feet are fixed to the bottom plate, which can lift the bottom plate.

[0022] Preferably, the grinding disc is made of a ceramic sheet or a metal sheet.

[0023] Compared with the prior art, the utility model has the function of automatically sharpening the tip of the needle, which saves time and effort and greatly improves the binding efficiency.

[0024] The utility model has the beneficial effects of simple structure, low cost, convenient use, time-saving, labor-saving and high efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0026] Figure 2 It is an enlarged schematic diagram of the structure of the self-sharpening device of the utility model.

[0027] Figure 3 It is a schematic diagram of the external structure of the self-sharpening device of the utility model.

[0028] Figure 4 It is a schematic diagram of the internal structure of an embodiment of the self-sharpening device of the utility model. DETAILED DESCRIPTION OF THE INVENTION

[0029] The present utility model will be further described in conjunction with the accompanying drawings:

[0030] Embodiment 1, as shown in Figure 1 , Figure 2 and Figure 3 , a self-grinding type binding book punching machine includes a punching machine body, which is provided with:

[0031] A bottom plate 11;

[0032] A bracket 14, which is fixed on the bottom plate;

[0033] A manual pressing component, which is installed on the bracket 14. The manual pressing component is fixed with a needle rod 12 that can move up and down for drilling. The needle rod 12 is moved by a hand crank 13. This part is the prior art;

[0034] A self-grinder 2 is fixed on the bottom plate 11. The self-grinder 2 includes:

[0035] An upper cover plate 222, a lower cover plate 223 and a surrounding plate 221, which form a housing structure. The upper cover plate 222 is provided with a through hole 111 that can pass through the tip of the needle rod 12;

[0036] A grinding disc 24, which is installed inside the housing structure and is inclined;

[0037] A limiting block 26, which is fixed inside the housing structure and can limit the grinding disc 24;

[0038] An elastic member 23, which is located between the grinding disc 24 and the inner wall of the housing structure and can push the grinding disc 24 towards the limiting block 26;

[0039] When the tip of the needle rod 12 passes through the binding book and the through hole of the upper cover plate 222 in sequence, it can touch the grinding disc 24, so that the tip of the needle can be sharpened, and the grinding disc 24 moves and the elastic member 23 can be compressed.

[0040] It should be noted that the grinding disc 24 of the present utility model can move and will not jam the needle rod 12. The inclination angle of the grinding disc 24 matches the tip angle of the needle rod 12. The elastic member 23 is usually selected as a light elastic member, and the hand feeling is negligible. Every time a hole is punched, the tip of the needle is ground once, and the effect is obvious.

[0041] Preferably, the elastic member 23 is a U-shaped elastic sheet, which can be made of steel sheet. The two sides of the elastic member 23 and the grinding disc 24 are limited by a limiting plate 25, and the limiting plate 25 is fixed to the inner wall of the housing structure. The U-shape can be inverted and has the characteristic of small volume. A compression spring can also be selected.

[0042] In order to adjust the elastic force, preferably, the surrounding plate 221 is provided with a threaded hole, and a pressing screw 21 is screwed into the threaded hole. The pressing screw 21 can press the U-shaped elastic member 23 to adjust the elastic force.

[0043] Since grinding the needle from one direction will cause the tip of the needle to be offset, preferably, the surrounding plate 221 has a conical structure. Correspondingly, the bottom plate 11 is provided with a conical hole, and the conical structure of the surrounding plate 221 is inserted into the conical hole. The surrounding plate 221 can rotate relative to the bottom plate 11, so that the tip of the needle rod 12 can be sharpened from different angles. It can be considered to manually rotate the self-sharpening device 2. During actual drilling, when touching the self-sharpening device 2, it is also possible to rotate the self-sharpening device 2, provided that the processing and installation of the self-sharpening device 2 are relatively delicate.

[0044] To ensure that the central position remains unchanged, preferably, the diameter of the upper cover plate 222 is larger than the diameter of the conical structure of the surrounding plate 221, and the bottom plate 11 is provided with a step, and the cover plate 222 is embedded in the step.

[0045] In the above embodiment, four limit blocks 26 are provided. Two are fixed to the upper cover plate 222 and the other two are fixed to the lower cover plate 223. The four limit blocks 26 respectively limit the four corners of the grinding disc 24 to avoid the needle rod 12.

[0046] Embodiment 2, as Figure 4 shown, the limit block 26 is provided with a threaded hole, and the limit screw 261 passes through the threaded hole and presses against the grinding disc 24, which can adjust the inclination angle of the grinding disc 24; this embodiment can conveniently adjust the angle and position of the grinding disc 24, and can make the tip of the needle rod 12 accurately contact the grinding disc 24, reducing the processing accuracy.

[0047] In the above two embodiments, the pressing screw 21 is lower than the bottom surface of the bottom plate 11, and four pressing feet 110 are fixed to the bottom plate 11, which can lift the bottom plate 11. During use, it can be adjusted as needed without disassembling the self-sharpening device 2.

[0048] Preferably, the grinding disc 24 is made of a ceramic sheet or a metal sheet, or can also be made of grinding wheel material. The metal sheet can be selected from ordinary iron materials, and better ones can be selected from hard steel, which is relatively wear-resistant.

Claims

1. A self-sharpening binding book puncher, comprising a puncher body, which is provided with: Bottom plate (11); A bracket (14) fixed to the base plate; A manual pressing assembly, which is mounted on a bracket (14), and a needle rod (12) that can move up and down to drill a hole is fixed to the manual pressing assembly; Its characteristics are: The bottom plate (11) is fixed with an autogenous grinder (2), which comprises: An upper cover plate (222), a lower cover plate (223) and a surrounding plate (221) constitute a housing structure, wherein the upper cover plate (222) is provided with a through hole (111) through which the needle tip of the needle rod (12) can pass; A grinding disc (24) is installed in the housing structure and is arranged obliquely; A limiting block (26) fixed in the housing structure and capable of limiting the position of the grinding plate (24); An elastic member (23) is located between the grinding plate (24) and the inner wall of the housing structure and is capable of pushing the grinding plate (24) toward the limiting block (26); When the needle tip of the needle bar (12) passes through the binding book and the through hole of the upper cover plate (222) in sequence, it can touch the grinding plate (24), so that the needle tip can be sharpened, and the grinding plate (24) can move and press the elastic member (23).

2. A self-sharpening bookbinding puncher as claimed in claim 1, characterized in that: The elastic member (23) is a U-shaped elastic sheet. Both sides of the elastic member (23) and the grinding sheet (24) are limited by a limiting plate (25), and the limiting plate (25) is fixed to the inner wall of the shell structure.

3. A self-sharpening bookbinding puncher as claimed in claim 2, characterized in that: The enclosure plate (221) is provided with a threaded hole, into which a clamping screw (21) is screwed. The clamping screw (21) can clamp the U-shaped elastic member (23) to adjust the elastic force.

4. A self-sharpening binding puncher as claimed in any one of claims 1 to 3, characterized in that: The enclosure (221) is a conical structure. Accordingly, the base plate (11) is provided with a conical hole. The conical structure of the enclosure (221) is inserted into the conical hole. The enclosure (221) can rotate relative to the base plate (11), so that the needle tip of the needle rod (12) can be sharpened from different angles.

5. A self-sharpening bookbinding puncher as claimed in claim 4, characterized in that: The diameter of the upper cover plate (222) is greater than the diameter of the conical structure of the enclosure plate (221); the bottom plate (11) is provided with a step, and the cover plate (222) is embedded in the step.

6. A self-sharpening bookbinding puncher as claimed in any one of claims 1 to 3, characterized in that: Four limit blocks (26) are provided, two of which are fixed to the upper cover plate (222) and the other two are fixed to the lower cover plate (223). The four limit blocks (26) respectively limit the four corners of the grinding plate (24).

7. A self-sharpening bookbinding puncher as claimed in claim 6, characterized in that: The limit block (26) is provided with a threaded hole, and the limit screw (261) passes through the threaded hole and presses against the grinding plate (24), so that the inclination angle of the grinding plate (24) can be adjusted.

8. A self-sharpening bookbinding puncher as claimed in claim 3, characterized in that: The clamping screw (21) is lower than the bottom surface of the base plate (11), and four presser feet (110) are fixed to the base plate (11) to lift the base plate (11).

9. A self-sharpening bookbinding puncher as claimed in any one of claims 1 to 3, characterized in that: The grinding sheet (24) is made of a ceramic sheet or a metal sheet.

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