Multi-hole punching machine

Abstract

The utility model relates to a multi-hole punching machine which is composed of a punching assembly and a machine body, the machine body is composed of a machine body and a machine bottom, the machine bottom is provided with a through hole, a clamping hook and a clamping groove, the punching assembly is sleeved with the machine body, the clamping hook is clamped on a limiting block to be clamped and fixed, and protruding fixing seats are arranged at the front end and the rear end of the other side of the punching assembly respectively. Clamping strips are arranged at the bottoms of the fixing bases, the clamping strips are embedded into the clamping grooves and fixed through screws, the position, located on the machine bottom, between the two fixed fixing bases serves as a punching workbench, a gap is reserved in the punching workbench to serve as a punching inlet of paper, guide rail grooves are formed in the two sides of the machine body, and a part of the punching assembly is arranged on the guide rail grooves. A pushing handle is installed outside the guide rail groove and connected with the punching assembly, and after paper is inserted into the punching inlet, the pushing handle on the guide rail groove is pushed to drive the punching assembly to conduct punching operation. The punching device has the advantages of simple and reasonable structure, convenience in mounting, dismounting and maintenance, small size, low cost, uniformity in punching and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of punching machines and relates to a multi-hole punching machine. Background Art

[0002] In many occasions, such as government agencies, schools, and offices, there are a large number of paper documents or other objects to be punched. When organizing, archiving, and storing these paper documents, a common method is to punch holes in the paper documents so that they can be fastened to devices such as loose-leaf folders. Conventional punching machines are generally installed by riveting metal parts, and generally cut two holes at a time. If multiple holes are to be punched, such as 10 or 20 holes at a time, the overall structure is complex and the entire device is large and bulky. The complex structure not only affects the installation efficiency, but also greatly increases the difficulty and cost of subsequent disassembly and maintenance. The device is large and bulky, which is inconvenient to carry and takes up a lot of space, making it inconvenient to place and store. In addition, existing punching machines have the problem of being inconvenient to clean after punching, and continuous punching, resulting in uneven holes due to alignment errors.

[0003] Therefore, a multi-hole punching machine is designed to overcome the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the existing technology and provide a multi-hole punching machine with simple and reasonable structure, convenient installation and disassembly and maintenance, small size and low cost, small office space occupation, uniform punching and easy cleaning.

[0005] The utility model is realized through the following technical solutions: a multi-hole punching machine, which includes a punching machine body, which is composed of a punching assembly and a machine body, and the machine body is composed of a machine body and a machine bottom, a first through hole, a hook, and a slot are opened on the machine bottom, the hook and the slot are arranged on the left and right sides of the machine bottom, the first through hole is opened in the middle for placing the punching assembly, and the machine body is arranged on the outer cover of the punching assembly, one side of the machine body is provided with a limit block used in conjunction with the hook, the hook is clamped on the limit block for clamping and fixing, and the front and rear ends of the other side are respectively provided with protruding fixing seats A card strip is provided at the bottom of the fixing seat, which is embedded in the card slot and fixed with screws. The area between the two fixing seats after fixation is located on the bottom of the machine as a punching workbench. A gap is left between the fuselage and the bottom of the machine on the side of the punching workbench close to the punching component as a punching entrance for the paper. Two relatively arranged guide rail grooves are also provided on both sides of the fuselage, where part of the punching component is placed on the guide rail groove, and a push handle is installed on the outside of the guide rail groove, which is connected to the punching component. When the paper is inserted into the punching entrance, the push handle on the guide rail groove is pushed to drive the punching component to perform the punching operation.

[0006] Preferably, the punching assembly consists of a punching seat, multiple knife assemblies, and a pulley assembly, the punching seat consists of a punching base and a punching shell, the punching base is installed in a first through hole opened on the bottom of the machine by bolts, and a punching opening is opened at a position facing the punching inlet, and multiple knife assemblies are installed inside, the punching shell is sleeved on the multiple knife assemblies and fixed between the punching base by clamping parts and bolts, and an inclined guide edge is opened at the punching opening to facilitate the insertion of paper, the top of the punching shell is provided with multiple placement holes, two limiting edges are opened on both sides of the multiple placement holes, and a guide rail is opened on the side of the punching shell, the pulley assembly is sleeved on the guide rails on both sides, and its movement trajectory is limited within the two limiting edges, the bottom of the multiple knife assemblies is facing the second through hole, and the top passes through the top of the punching shell and is placed in the placement hole opened in the two limiting edges, and the pulley assembly rolls over the extruding knife assembly to perform a punching operation on the second through hole below it.

[0007] Preferably, the knife assembly consists of a spring and a paper cutter, a pressing portion is provided on the top of the paper cutter, and a cutter head is provided on the bottom, the pressing portion and the cutter head are connected by a limiting protrusion, a plurality of hollow knife seats are provided in the punching base, each knife seat is sleeved with a spring, wherein the cutter head is inserted into the hollow knife seat, facing the second through hole below, and the limiting protrusion presses against the spring, and when the upper pulley assembly rolls over the pressing portion to drive the cutter head to press downward, the limiting protrusion presses against the top of the hollow knife seat, and waits for the pulley assembly to roll over, and then resets by the spring to make the limiting protrusion move away from the hollow knife seat, so that the cutter head is lifted.

[0008] Preferably, the pulley assembly consists of a left pulley housing, a right pulley housing, and a bearing. A bearing seat is provided between the left pulley housing and the right pulley housing, and the bearing is installed on the bearing seat. The bearing is placed in the middle of the two limiting edges and slides. A snap-fit groove is provided below both sides of the left pulley housing and the right pulley housing, and the snap-fit groove is clamped on the guide rail. An L-shaped connecting wing is provided above the snap-fit groove, and the connecting wing is arranged in the guide rail groove. The end of the connecting wing is clamped and fixed with a push handle, and the push handle drives the paper cutter to squeeze and cut paper.

[0009] Preferably, a certain space is left between the bottom of the hollow knife seat and the bottom of the first through hole on the bottom of the machine, and the space serves as a collection groove. A paper scrap cover is installed on the outside of the collection groove. One end of the paper scrap cover is installed in the shaft groove arranged on one side of the bottom of the machine through a shaft, and the other side is fixed to the slot on the bottom of the machine through a clip, which is convenient for disassembly and cleaning.

[0010] Preferably, a non-slip pad is installed at the bottom of the machine bottom.

[0011] Preferably, the push handle is provided with anti-slip stripes.

[0012] The beneficial effects of the utility model are as follows:

[0013] The multi-hole punching machine designed by the utility model has many advantages such as simple and reasonable structure, convenient installation and disassembly maintenance, small size, small office space occupation, uniform punching and easy cleaning. Compared with the traditional punching machine hardware stamping and riveting method, it reduces spare parts and drilling and expanding processes, saving costs and assembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the pulley assembly in the utility model.

[0017] Figure 4 for Figure 1 Schematic diagram of the structure after removing the fuselage.

[0018] Figure 5 for Figure 1 Bottom diagram of . DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to more clearly understand the purpose, technical solutions and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0020] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right", "inside", "outside", "horizontal", and "vertical" are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or original referred to must have a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0021] The present invention will be described in detail below with reference to the accompanying drawings: Figure 1-2As shown, a multi-hole punching machine includes a punching machine body, which is composed of a punching assembly and a body 1. The body 1 is composed of a body 2 and a bottom 3. A first through hole 4, a hook 5, and a slot 6 are provided on the bottom 3. The hook 5 and the slot 6 are arranged on the left and right sides of the bottom 3. The first through hole 4 is opened in the middle for placing the punching assembly, and the body 2 is provided on the outer cover of the punching assembly. One side of the body 2 is provided with a limit block 7 used in conjunction with the hook 5. The hook 5 is clamped on the limit block 7 for clamping and fixing. The front and rear ends of the other side are respectively provided with protruding fixing seats 8, and the bottom of the fixing seat 8 is provided with a card strip (as shown in the figure (not shown), the card strip is embedded in the card slot 6 and fixed with screws 9. After being fixed, the two fixing seats 8 are located between the bottom 3 of the machine as a punching workbench. A gap is left between the machine body 2 and the bottom 3 on the side of the punching workbench close to the punching component as a punching entrance 10 for paper. Two relatively arranged guide rail grooves 11 are also opened on both sides of the machine body 2, wherein part of the punching component is placed on the guide rail groove 11, and a push handle 12 is installed on the outside of the guide rail groove 11. The push handle 12 is connected to the punching component. When the paper is inserted into the punching entrance 10, the push handle 12 on the guide rail groove 11 is pushed to drive the punching component to perform the punching operation.

[0022] Compared with the traditional punching machine hardware punching and riveting method, the multi-hole punching machine designed by the utility model reduces spare parts and drilling and expanding processes, saving costs and assembly time.

[0023] like Figure 3-4 As shown, the punching assembly consists of a punching seat 13, a plurality of knife assemblies 14, and a pulley assembly 15. The punching seat 13 consists of a punching base 16 and a punching shell 17. The punching base 16 is installed in the first through hole 4 opened on the bottom 3 by bolts, and a punching opening 18 is opened on the side facing the punching inlet 10. A plurality of knife assemblies 14 are installed inside the punching shell 17. The punching shell 17 is set on the plurality of knife assemblies 14 and fixed between the punching base 16 by a clamp and a bolt, and an inclined guide edge 1 is opened at the punching opening 18. 9. To facilitate the insertion of paper, a plurality of placement holes 20 are provided on the top of the punching shell 17, two limiting edges 21 are provided on both sides of the plurality of placement holes 20, and a guide rail 22 is provided on the side of the punching shell 17. The pulley assembly is sleeved on the guide rails 22 on both sides, and its movement trajectory is limited within the two limiting edges 21. The bottom of the plurality of knife assemblies 14 is facing the second through hole 23, and the top passes through the top of the punching shell 17 and is placed in the placement holes opened in the two limiting edges. The pulley assembly rolls over the extrusion knife assembly to perform a punching operation on the second through hole 23 below.

[0024] The knife assembly 14 consists of a spring 24 and a paper cutter 25. A pressing portion 26 is provided above the paper cutter 25, and a cutter head 27 is provided below. The pressing portion 26 and the cutter head 27 are connected by a limiting protrusion 28. A plurality of hollow knife seats 29 are provided in the punching base 16. Each knife seat 29 is sleeved with a spring 24, wherein the cutter head 27 is inserted into the hollow knife seat 29, facing the second through hole 23 below. The limiting protrusion 28 presses against the spring 24. When the upper pulley assembly rolls over the pressing portion and drives the cutter head 27 to press downward, the limiting protrusion 28 presses against the hollow knife seat 29. After the pulley assembly rolls over, it is reset by the spring 24, so that the limiting protrusion 28 is away from the hollow knife seat 29, allowing the cutter head 27 to lift.

[0025] The pulley assembly consists of a left pulley housing 30, a right pulley housing 31, and a bearing 32. A bearing seat 33 is provided between the left pulley housing 30 and the right pulley housing 31, and the bearing 32 is mounted on the bearing seat 33. The bearing 32 is placed in the middle of the two limiting edges 21 and slides. A snap-fit groove 40 is provided below both sides of the left pulley housing 30 and the right pulley housing 31. The snap-fit groove 40 is clamped on the guide rail 22, and an L-shaped connecting wing 34 is provided above the snap-fit groove 40. The connecting wing 34 is arranged in the guide rail groove 11, and its end is clamped and fixed with the push handle 12, and the push handle 12 drives the paper cutter 25 to squeeze and cut paper.

[0026] like Figure 5 As shown, a certain space is left between the hollow interior of the knife holder 29 and the bottom of the first through hole 4 in the machine base. This space serves as a collection trough 35. A paper scrap cover 36 is installed outside the collection trough 35. One end of the paper scrap cover 36 is mounted in a shaft slot 38 arranged on one side of the machine base 3 via a shaft 37. The other end is fixed to a slot in the machine base 3 via a clip 39, making it easy to disassemble and clean. A non-slip pad 41 is also installed at the bottom of the machine base 3. The push handle 12 is also provided with non-slip stripes 42.

[0027] The utility model can collect paper scraps after punching through the designed collection groove, and after a certain amount is collected, the paper scrap cover can be opened for unified processing. The anti-slip gasket arranged on the bottom of the machine can ensure that the punching machine will not shift when working, and the anti-slip stripes arranged on the push handle can make hand-held operation more convenient, thereby improving work efficiency.

[0028] The working principle of this utility model is as follows:

[0029] After the multi-hole punching machine of the present invention is assembled, paper is inserted into the punching inlet, and the push handle on the guide groove is pushed. The push handle drives the bearing in the pulley assembly to roll, and the pulley assembly rolls over the paper cutter in the extrusion knife assembly to punch the paper in the second through hole below it. After the pulley assembly rolls over, it is reset by the spring in the knife assembly, and the limit block is away from the hollow knife seat, so that the knife head in the knife assembly is lifted. The above actions are repeated to complete the rapid punching of the paper. After punching, the paper scraps enter the collection trough for collection. When regular cleaning is required, the paper scrap cover can be opened to complete the cleaning.

[0030] The multi-hole punching machine designed in this utility model adopts zinc alloy die-casting integrated molding technology. Compared with the traditional punching machine hardware stamping and riveting method, it reduces spare parts and drilling and expanding processes, saving costs and assembly time.

[0031] The specific embodiments described herein are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, any equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed in this utility model shall be covered by the claims of this utility model.

Claims

1. A multi-hole punch, comprising a punch body, the punch body comprising a punch assembly and a body, characterized in that: The machine body consists of a machine body and a machine bottom, and a first through hole, a hook, and a slot are provided on the machine bottom, and the hook and the slot are arranged on the left and right sides of the machine bottom. The first through hole is provided in the middle for placing the punching assembly, and the machine body is provided on the outer cover of the punching assembly, and a limit block is provided on one side of the machine body for cooperating with the hook, and the hook is clamped on the limit block for clamping and fixing. A protruding fixing seat is provided at the front and rear ends of the other side, and a clamping strip is provided at the bottom of the fixing seat, which is embedded in the slot and fixed with screws. The two fixing seats after fixation are located on the machine bottom as a punching workbench, and a gap is left between the machine body and the machine bottom on the side of the punching workbench close to the punching assembly as a punching inlet for paper. Two guide grooves arranged oppositely are also provided on both sides of the machine body, wherein part of the punching assembly is placed on the guide groove, and a push handle is installed on the outside of the guide groove, and the push handle is connected to the punching assembly. When the paper is inserted into the punching inlet, the push handle on the guide groove is pushed to drive the punching assembly to perform the punching operation.

2. The multi-hole punch according to claim 1, characterized in that: The punching assembly consists of a punching seat, multiple knife assemblies, and a pulley assembly. The punching seat consists of a punching base and a punching shell. The punching base is installed in a first through hole opened on the bottom of the machine by bolts. A punching opening is opened at a position facing the punching inlet. Multiple knife assemblies are installed inside. The punching shell is sleeved on the multiple knife assemblies and fixed between the punching base by clamping parts and bolts, and an inclined guide edge is opened at the punching opening to facilitate the insertion of paper. The top of the punching shell is provided with multiple placement holes, two limiting edges are opened on both sides of the multiple placement holes, and a guide rail is opened on the side of the punching shell. The pulley assembly is sleeved on the guide rails on both sides, and its movement trajectory is limited within the two limiting edges. The bottom of the multiple knife assemblies is facing the second through hole, and the top passes through the top of the punching shell and is placed in the placement hole opened in the two limiting edges. The pulley assembly rolls over the extruding knife assembly to perform a punching operation on the second through hole below it.

3. The multi-hole punch according to claim 2, characterized in that: The knife assembly consists of a spring and a paper cutter, a pressing portion is provided on the top of the paper cutter, and a cutter head is provided on the bottom. The pressing portion and the cutter head are connected by a limiting protrusion. A plurality of hollow knife seats are provided in the punching base, and each knife seat is sleeved with a spring, wherein the cutter head is inserted into the hollow knife seat, facing the second through hole below, and the limiting protrusion presses against the spring. When the pulley assembly above rolls over the pressing portion and drives the cutter head to press downward, the limiting protrusion presses against the top of the hollow knife seat. After the pulley assembly rolls over, it is reset by the spring, so that the limiting protrusion is away from the hollow knife seat, allowing the cutter head to lift.

4. The multi-hole punch according to claim 3, characterized in that: The pulley assembly consists of a left pulley housing, a right pulley housing, and a bearing. A bearing seat is provided between the left pulley housing and the right pulley housing, and the bearing is installed on the bearing seat. The bearing is placed in the middle of the two limiting edges and slides. A clamping groove is provided below both sides of the left pulley housing and the right pulley housing. The clamping groove is clamped on the guide rail, and an L-shaped connecting wing is provided above the clamping groove. The connecting wing is arranged in the guide rail groove, and its end is clamped and fixed with the push handle, which is driven by the push handle to move the paper cutter to squeeze and cut paper.

5. The multi-hole punch according to claim 3, characterized in that: A certain space is left between the bottom of the hollow knife seat and the bottom of the first through hole on the bottom of the machine. The space serves as a collection groove, and a paper scrap cover is installed on the outside of the collection groove. One end of the paper scrap cover is installed in the shaft groove arranged on one side of the bottom of the machine through a rotating shaft, and the other side is fixed to the slot on the bottom of the machine through a clip, which is convenient for disassembly and cleaning.

6. The multi-hole punch according to claim 1, 2 or 5, characterized in that: The bottom of the machine bottom is also equipped with an anti-skid pad.

7. The multi-hole punch according to claim 1 or 4, characterized in that: The push handle is also provided with anti-slip stripes.

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