Perforating machine with replaceable tool bit

Abstract

The utility model relates to a perforating machine with a replaceable tool bit, which comprises a machine base, a cutter holder through groove, a cutter bit, a cutter bit, a cutter bit, a cutter bit, a cutter bit, a cutter bit, a cutter bit, a cutter bit, a cutter bit and a cutter bit, the knife rest is arranged at the bottom of the knife rest through groove and detachably installed at the bottom of the knife rest through groove, and a paper clamping groove corresponding to the side clamping opening is formed in the side portion of the knife rest and used for containing paper to be punched; the punching tool bit is detachably placed on the upper portion of the tool rest and can ascend and descend to penetrate through the bottom of the tool rest, and the bottom of the punching tool bit is provided with an inclined cutting edge; the tool rest is provided with a corresponding guide tool hole; the punching tool bit is sleeved with a reset spring. The control handle is hinged to the upper part of the knife rest through groove, one end part is a hinged end, and the other end part is a stressed end; the hinged end is provided with a pressing sleeve extending downwards, and a pressing block is arranged in the pressing sleeve. According to the perforating machine with the replaceable tool bit, different perforating tool bits can be replaced, and more perforating requirements can be met.

Description

Technical Field

[0001] The utility model relates to the field of paper punching machines, in particular to a punching machine with replaceable cutter heads. Background Art

[0002] At present, the punching machines used for paper are basically products with fixed round holes. They are basically used for punching paper. After punching the paper, the punched holes are aligned with the quick grab clip or the post of the loose-leaf binder, and then the quick grab clip or the loose-leaf binder is closed. Since consumers need to replace the internal paper in many cases during use, they have to open the loose-leaf binder every time to take out the paper and replace the document, which is very inconvenient to use.

[0003] In view of the existing problems, if a punching machine with replaceable cutter heads is designed, with two or more than two types of hole positions or cutter heads, for documents that need to be permanently preserved, round holes are used for punching, and for documents that need to be replaced, mushroom holes are used for punching. This hole position can quickly replace the document (hereinafter referred to as mushroom hole), which will meet the needs of consumers who need to punch multiple different hole positions and no longer require purchasing multiple punching machines. Summary of the Utility Model

[0004] In order to overcome the problems existing above, the utility model provides a punching machine with replaceable cutter heads, which can replace different punching cutter heads to meet more punching requirements.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a punching machine with replaceable cutter heads, including: a machine base having a tool holder through groove, a side clamping port is arranged on the side of the tool holder through groove, and a paper debris retention cavity is arranged at the lower part;

[0006] A tool holder is arranged at the bottom of the tool holder through groove and can be detachably installed at the bottom of the tool holder through groove. A paper clamping groove corresponding to the side clamping port is arranged on the side of the tool holder for placing the paper to be punched;

[0007] A punching cutter head can be detachably placed on the upper part of the tool holder and can be lifted and lowered. When descending, it passes through the bottom of the tool holder. The bottom of the punching cutter head has an inclined cutting edge; a corresponding guide cutter hole is arranged on the tool holder; a return spring is sleeved on the punching cutter head. The upper part of the return spring is in limit contact with the punching cutter head, and the lower part is in limit contact with the tool holder, providing an upward restoring elastic force;

[0008] A control handle is hingedly arranged at the upper part of the tool holder through groove, one end is a hinge end, and the other end is a force receiving end; a pressing sleeve extending downward is arranged at the hinge end, a pressing block is arranged inside the pressing sleeve, the pressing block is located in the tool holder through groove, and the pressing block is in contact with the upper end face of the punching cutter head. When pressure is applied to the force receiving end, the control handle rotates downward along with the hinge end. At this time, the pressing block pushes the punching cutter head downward, causing the punching cutter head to move downward to complete the cutting / punching work.

[0009] Preferably, the periphery of the pilot hole is a flanging structure extending upward, which can guide the punching cutter head. The return spring is sleeved on the outer edge of the flanging structure of the pilot hole.

[0010] Preferably, the tool holder is provided with at least one screw mounting hole, and the bottom of the machine base is provided with corresponding screw hole columns. The tool holder is locked to the bottom of the machine base through screws, so that the tool holder corresponds to the bottom of the tool holder through slot.

[0011] Preferably, a connecting ear extending backward is arranged behind the tool holder. The screw mounting hole is arranged on the connecting ear, and the tool holder is embedded in the bottom of the tool holder through slot.

[0012] Preferably, the bottom surface of the pressing block is an inclined guiding surface, which slopes downward from the hinged end to increase the stroke of the force receiving end of the control handle.

[0013] Preferably, the hinged end is arranged at the bottom of the pressing block, and a corresponding shaft hole is arranged in the tool holder through slot.

[0014] Preferably, a bottom seal is arranged at the bottom of the machine base. The bottom seal is made of soft rubber. The periphery of the bottom seal is embedded in the bottom of the machine base. The rear end of the bottom seal is the embedded end, and the front end of the bottom seal is the open end. A folding surface is arranged between the embedded end and the open end. Open the open end to discharge the paper scraps in the paper scrap storage cavity.

[0015] Preferably, a plurality of pin columns are arranged on the periphery of the embedded end and inserted into the bottom of the machine base; a clamping convex block is arranged on the upper periphery of the open end, and the clamping convex block is clamped into the periphery of the bottom of the machine base.

[0016] Preferably, the bottom seal is a corrugated rubber.

[0017] Preferably, the punching cutter head is a round punch, which can punch round holes in the paper.

[0018] Preferably, the punching cutter head is a mushroom-shaped punch, which can punch mushroom-shaped holes in the paper.

[0019] The beneficial effects of the present utility model are as follows:

[0020] 1. The punching cutter head is designed as a replaceable structure, and can be replaced with different shaped hole positions according to requirements.

[0021] 2. The control handle is designed as a labor-saving lever structure, making it easier and more labor-saving for consumers to operate.

[0022] 3. A paper scrap storage space is provided at the bottom. When the paper scraps are full, the bottom flip cover can be opened to discharge the paper scraps.

[0023] 4. The tool holder is provided with a screw mounting position to connect the machine base. When the cutter head needs to be replaced, the screw can be disassembled to replace another set of cutter heads.

[0024] 5. There are two or more sets of cutter head assemblies, one is a round hole cutter head assembly, and the other is a mushroom hole cutter head assembly, including but not limited to the above two types.

[0025] 6. The head of the punch is designed with a beveled cutting edge, and the part uses alloy die-casting material. Tool holder: There are hole positions and guiding grooves matching the punch, and it uses alloy die-casting material.

[0026] 7. The bottom cover is designed as PP folding glue, and the product can be repeatedly opened without breaking, ensuring the service life of the product.

[0027] When the hole positions of the corresponding shape need to be replaced, use a screwdriver to remove the screws, remove the tool holder, and replace the punching cutter head to be used. This solves the need to punch multiple different hole positions and eliminates the need to purchase multiple punching machines. Brief Description of the Drawings

[0028] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0029] Figure 1 It is a schematic diagram of the overall structure of the punching machine with replaceable cutter heads according to the present utility model;

[0030] Figure 2 It is a schematic diagram of the sectional structure of the punching machine with replaceable cutter heads according to the present utility model;

[0031] Figure 3 It is a schematic diagram of the open-end opening structure of the punching machine with replaceable cutter heads according to the present utility model;

[0032] Figure 4 It is a schematic diagram of the disassembled structure of the punching machine with replaceable cutter heads according to the present utility model;

[0033] Figure 5 It is a schematic diagram of the base structure of the punching machine with replaceable cutter heads according to the present utility model;

[0034] Figure 6 It is a schematic diagram of the structure of the round hole cutter head assembly of the punching machine with replaceable cutter heads according to the present utility model;

[0035] Figure 7 It is a schematic diagram of the punching structure of the round hole cutter head assembly on the paper in the present utility model;

[0036] Figure 8 It is a schematic diagram of the structure of the mushroom hole cutter head assembly of the punching machine with replaceable cutter heads according to the present utility model;

[0037] Figure 9 It is a schematic diagram of the punching structure of the mushroom hole cutter head assembly on the paper in the present utility model.

[0038] Reference Signs:

[0039] 1. Machine base, 11. Tool rest through slot, 12. Side clamping opening, 13. Paper scrap retention cavity, 14. Screw hole column, 15. Card slot, 2. Tool rest, 21. Paper clamping groove, 22. Connecting ear, 23. Screw mounting hole, 24. Guide punch hole, 25. Flanging structure, 26. Snap, 3. Punching tool head, 31. Taper cutting edge, 32. Round punch, 33. Mushroom punch, 4. Control handle, 41. Hinged end, 42. Force receiving end, 43. Pressure sleeve, 431. Inclined guiding surface, 44. Pressure block, 5. Bottom seal, 51. Folding surface, 52. Pin column, 53. Positioning convex block, 6. Screw, 7. Return spring. Detailed Implementation Manner

[0040] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0041] Embodiment

[0042] As shown in Figure 1 、 2 , a punching machine with a replaceable tool head is composed of a machine base 1, a tool rest 2, a punching tool head 3, and a bottom seal 5. The punching tool head 3 is a replaceable structure and can be replaced with different-shaped hole positions according to requirements.

[0043] Refer to Figure 4 、 5 , the machine base 1 has a tool rest through slot 11. A side clamping opening 12 is provided on the side of the tool rest through slot 11, and a paper scrap retention cavity 13 is provided at the lower part. The lower part is also an open structure and can install the bottom seal 5.

[0044] Refer to Figure 4 、 6 , the tool rest 2 is arranged at the bottom of the tool rest through slot 11 and can be detachably installed at the bottom of the tool rest through slot 11. A paper clamping groove 21 corresponding to the side clamping opening 12 is provided on the side of the tool rest 2 for placing the paper to be punched.

[0045] In this embodiment, the tool rest 2 is provided with at least one screw mounting hole 23, and a corresponding screw hole column 14 is provided at the bottom of the machine base 1. The tool rest 2 is locked to the bottom of the machine base 1 through a screw 6, so that the tool rest 2 corresponds to the bottom of the tool rest through slot 11.

[0046] In this embodiment, a connecting ear 22 extending backward is provided behind the tool rest 2. The screw mounting hole 23 is provided on the connecting ear 22. The tool rest 2 is embedded in the bottom of the tool rest through slot 11. And a buckle 26 can be provided on the side edge of the tool rest 2 at the lower end of the paper clamping groove 21, and a corresponding card slot 15 is provided on the side clamping opening 12 of the machine base 1. The buckle 26 and the card slot 15 form a buckling position, making the installation more stable. By removing the screw 6 and disengaging the buckling position, the tool rest 2 can be removed.

[0047] See Figure 6 , the punching tool head 3 is arranged on the upper part of the tool rest 2 in a placed manner, which is easily detachable and installable and can be lifted and lowered. When descending, it passes through the bottom of the tool rest 2. The bottom of the punching tool head 3 has an inclined cutting edge 31; the tool rest 2 is provided with a corresponding guiding tool hole 24 to enable the hole punch to move downward; a return spring 7 is sleeved on the punching tool head 3. The upper part of the return spring 7 is in limit contact with the punching tool head 3, and the lower part is in limit contact with the tool rest 2, providing an upward restoring elastic force; after being pressed down, the elastic force makes the punching tool head 3 move upward and return to its position.

[0048] See Figure 6 , the periphery of the guiding tool hole 24 is a flanging structure 25 extending upward, which can guide the punching tool head 3, and the return spring 7 is sleeved on the outer edge of the flanging structure 25 of the guiding tool hole 24. The upper part of the punching tool head 3 is a large head seat structure, which can hold the return spring 7.

[0049] Among them, the punching tool head 3 and the tool rest 2 are combined to form a tool head assembly. When replacing, the entire tool head assembly can be replaced to prevent possible scratches when the punching tool head 3 is removed.

[0050] See Figure 2 , 4 , the control handle 4 is hingedly arranged on the upper part of the tool rest through slot 11. One end is the hinged end 41, and the other end is the force-receiving end 42. A pressing sleeve 43 extending downward is provided at the hinged end 41. A pressing block 44 is arranged inside the pressing sleeve 43. The pressing block 44 is located in the tool rest through slot 11 and is in contact with the upper end surface of the punching tool head 3. When pressure is applied to the force-receiving end 42, the control handle 4 rotates downward along with the hinged end 41. At this time, the pressing block 44 pushes the punching tool head 3 downward, causing the punching tool head 3 to move downward to complete the cutting / punching work. Then, the control handle 4 is reset by the elastic force of the return spring 7.

[0051] In this embodiment, the bottom surface of the pressing block 44 is an inclined guiding surface 431, which slopes downward starting from the hinged end 41. The inclined guiding surface 431 has an avoidance effect, and the rotation angle increases to increase the stroke of the force-receiving end 42 of the control handle 4.

[0052] In this embodiment, the hinged end 41 is arranged at the bottom of the pressing block 44, and a corresponding shaft hole (not shown) is arranged in the tool rest through slot 11. The hinged end 41 is two protruding shaft points, and the shaft points penetrate into the shaft hole in the tool rest through slot 11.

[0053] In this embodiment, the bottom seal 5 is made of soft rubber. The periphery of the bottom seal 5 is embedded in the bottom of the machine base 1. The rear end of the bottom seal 5 is the embedded end, and the front end of the bottom seal 5 is the open end. A folding surface 51 is provided between the embedded end and the open end, so that the open end forms a flip structure. By opening the open end, the paper scraps in the paper scrap storage cavity 13 can be discharged.

[0054] In this embodiment, a plurality of pin columns 52 are provided along the periphery of the embedded end and are inserted into the bottom of the machine base 1. There are 5 clamping convex blocks provided along the periphery of the open end, and the 5 clamping convex blocks are clamped into the periphery of the bottom of the machine base 1.

[0055] In this embodiment, the bottom seal 5 is a hundred-fold rubber.

[0056] See Figure 6 、 7 , in one embodiment, the punching cutter head 3 is a round punch 32, which can punch round holes in the paper.

[0057] See Figure 8 、 9 , in one embodiment, the punching cutter head 3 is a mushroom-shaped punch 33, which can punch mushroom-shaped holes in the paper.

[0058] 1. The punching cutter head is designed as a replaceable structure and can be replaced with different-shaped hole positions according to requirements.

[0059] 2. The control handle is designed as a labor-saving lever structure, making it easier and more labor-saving for consumers to operate.

[0060] 3. There is a paper scrap storage space at the bottom. When the paper scraps are full, the bottom flip cover can be opened to discharge the paper scraps.

[0061] 4. The tool holder is provided with a screw installation position to connect to the machine base. When the cutter head needs to be replaced, the screw can be disassembled to replace with another set of cutter heads.

[0062] 5. There are two or more sets of cutter head assemblies. One is a round-hole punching cutter head assembly. The other is a mushroom-hole punching cutter head assembly, including but not limited to the above two types.

[0063] 6. The head of the punch is designed with an inclined cutting edge, and the part is made of alloy die-casting material. Tool holder: There are holes and alignment grooves matching the punch, and it is made of alloy die-casting material.

[0064] 7. The bottom cover is designed as PP hundred-fold rubber, and the product can be repeatedly opened without breaking, ensuring the service life of the product.

[0065] For the drilling machine with replaceable cutter heads of the present utility model, when it is necessary to replace the hole positions of corresponding shapes, use a screwdriver to disassemble the screws, remove the tool holder, and replace the drilling cutter head to be used. This solves the need to drill multiple different hole positions, and there is no longer a need to purchase multiple drilling machines.

[0066] Inspired by the above ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A punching machine with replaceable cutter heads, characterized in that, Including: A machine base having a tool rest through groove, with a side clamping opening provided on the side of the tool rest through groove and a paper debris retention cavity provided at the lower part; A tool rest disposed at the bottom of the tool rest through groove and detachably mounted at the bottom of the tool rest through groove. A paper clamping groove corresponding to the side clamping opening is provided on the side of the tool rest for placing the paper to be punched; A punching tool head detachably placed on the upper part of the tool rest and capable of lifting and lowering. When descending, it passes through the bottom of the tool rest. The bottom of the punching tool head has an inclined cutting edge; a corresponding guiding tool hole is provided on the tool rest; the punching tool head is sleeved with a return spring. The upper part of the return spring is in limit contact with the punching tool head, and the lower part is in limit contact with the tool rest, providing an upward restoring elastic force; A control handle hingedly disposed at the upper part of the tool rest through groove, with one end being the hinge end and the other end being the force application end; a pressing sleeve extending downward is provided at the hinge end, and a pressing block is arranged inside the pressing sleeve. The pressing block is located in the tool rest through groove and is in contact with the upper end face of the punching tool head. When pressure is applied to the force application end, the control handle rotates downward along with the hinge end. At this time, the pressing block pushes the punching tool head downward, causing the punching tool head to move downward to complete the cutting / punching work.

2. The punching machine with replaceable cutter head according to claim 1, wherein: The periphery of the guiding tool hole is a flanging structure extending upward, which can guide the punching tool head, and the return spring is sleeved on the outer edge of the flanging structure of the guiding tool hole.

3. The punching machine with replaceable cutter head according to claim 2, characterized in that: A connecting ear extending backward is provided behind the tool rest, and a screw mounting hole is provided on the connecting ear. A corresponding screw hole column is provided at the bottom of the machine base. The tool rest is locked to the bottom of the machine base through screws, so that the tool rest corresponds to the bottom of the tool rest through groove, and the tool rest is embedded in the bottom of the tool rest through groove.

4. The drilling machine with replaceable cutter head according to claim 1, characterized in that: The bottom surface of the pressing block is an inclined guiding surface, which slopes downward starting from the hinge end to increase the stroke of the force application end of the control handle.

5. The drilling machine with replaceable cutter head according to claim 4, characterized in that: The hinge end is disposed at the bottom of the pressing block, and a corresponding shaft hole is provided in the tool rest through groove.

6. The punching machine with replaceable cutter head according to claim 1, characterized in that: A bottom seal is provided at the bottom of the machine base. The bottom seal is made of soft rubber. The periphery of the bottom seal is embedded in the bottom of the machine base. The rear end of the bottom seal is the embedded end, and the front end of the bottom seal is the open end. A folding surface is provided between the embedded end and the open end. Opening the open end discharges the paper debris in the paper debris retention cavity.

7. The punching machine with replaceable cutter head according to claim 6, characterized in that: A plurality of pin columns are provided on the periphery of the embedded end and inserted into the bottom of the machine base; a clamping convex block is provided on the upper periphery of the open end, and the clamping convex block is clamped into the periphery of the bottom of the machine base.

8. The punching machine with replaceable cutter head according to claim 6, characterized in that: The bottom seal is a hundred-fold glue.

9. A punching machine with replaceable cutter heads according to any one of claims 1-8, characterized in that: The punching tool head is a round punch, which can punch round holes in the paper.

10. A hole punch with a replaceable cutter head according to any one of claims 1-8, characterized in that: The punching tool head is a mushroom-shaped punch, which can punch mushroom-shaped holes in the paper.

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