Adjustable manual punching and cutting device

Abstract

The utility model discloses an adjustable manual punching and cutting device which comprises a base and a punching unit. The punching unit comprises a machine head, and the lower end of the machine head is slidably installed at the upper end of the base. A punching shaft is arranged in the machine head, a detachable punching cutter is installed at the lower end of the punching shaft, a gear is arranged in the machine head and meshed with a rack part arranged on the periphery of the punching shaft, a rotating shaft for driving the gear to rotate is arranged above the base, flange bearings located on the two sides of each gear are arranged on the rotating shaft, and bearing grooves for embedding and rotating the flange bearings are formed in the inner side wall of the machine head. A limiting annular protrusion abutting against the side wall of the machine head is arranged on the end face of the flange bearing. The distance between every two adjacent punching units can be adjusted, and the application range of the device is widened; due to the fact that the flange bearings are arranged on the two sides of the gear, the flange bearings are installed in the bearing grooves in the inner side of the machine head and abut against the inner wall of the machine head through the limiting ring protrusions, the installation stability is further improved, the flange bearings can ensure that the gear structure keeps high stability, and the whole structure is not prone to damage.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting and punching, in particular to an adjustable manual punching and cutting device. Background Art

[0002] For the industry engaged in file management, a punching machine is an essential tool in the office. In order to facilitate storage, many documents are collected, sorted, punched and then bound. The currently used punching and binding machine is a common office equipment, which generally includes a base with a relatively large area and a relatively long handle. Operating the handle can drive the punching mechanism or the binding mechanism to punch and bind the paper respectively. Currently, the punching machine usually has certain specifications such as punching spacing and cannot adjust the punching spacing. In addition, the force on the assembly position of the machine head of the punching machine is easily damaged, resulting in great limitations in the use of the equipment. Content of the Utility Model

[0003] Aiming at the defects in the prior art, the purpose of the utility model is to provide an adjustable manual punching and cutting device, which can adjust the punching spacing and at the same time the punching structure is stable and not easily damaged.

[0004] The technical solution adopted by the utility model is: an adjustable manual punching and cutting device, including a base, and further including at least one punching unit; the punching unit includes a machine head, the lower end of the machine head is slidably installed on the upper end of the base so that the spacing between adjacent punching units can be adjusted; a punching shaft capable of sliding up and down in the vertical direction is arranged in the machine head, a detachable punching knife is installed at the lower end of the punching shaft, a gear is arranged in the machine head, the gear meshes with a rack portion arranged on the outer periphery of the punching shaft, a rotating shaft horizontally arranged and passing through each gear is arranged above the base, a handle structure is connected to the end of the rotating shaft, flange bearings are arranged on both sides of each gear on the rotating shaft, a bearing groove for embedding the flange bearings is arranged on the inner side wall of the machine head, and a limiting ring convex abutting against the side wall of the machine head is arranged on the end face of the flange bearing.

[0005] In this technical solution, different numbers of punching units can be arranged on the upper end of the base according to needs, and the machine heads of the punching units can be slidably installed on the base, so that the spacing between adjacent punching units can be adjusted when arranging multiple punching units, improving the application range of the device; when punching, by rotating the handle structure, each gear in the machine head rotates to drive the punching shaft to slide up and down in the vertical direction, and each punching knife is used to complete punching. Since flange bearings are arranged on both sides of the gear, and the flange bearings are installed in the bearing grooves on the inner side of the machine head, the installation is further improved by adopting the assembly method from the inside to the outside and at the same time the limiting ring convex abuts against the inner wall of the machine head. The flange bearings can ensure that the gear structure maintains high stability, improving the punching accuracy and stability of the device.

[0006] Preferably, an adjusting nut is rotatably arranged at the upper end of the machine head, and the adjusting nut is in threaded fit with the upper end of the punching shaft.

[0007] Preferably, a return spring sleeved on the punching shaft is provided inside the machine head.

[0008] Preferably, the handle structure is in a U-shaped structure and is fixedly connected to the end of the rotating shaft.

[0009] Preferably, a strip-shaped installation groove is provided on the base corresponding to the lower part of the machine head, a fixing plate is provided on the lower surface of the base, and fixing bolts passing through the strip-shaped installation groove and fixed to the lower end of the machine head are provided on the fixing plate.

[0010] Preferably, a gasket is provided on the upper end of the base corresponding to the lower part of the punching knife, and the gasket fits in a gasket groove provided above the base.

[0011] Preferably, paper blocking sliders are provided on the outer sides of the lower ends of the machine heads of the punching units located on both outer sides of the upper end of the base.

[0012] Preferably, a paper pressing block is provided on one side of the upper end of the base, and one end of the paper pressing block is rotatably connected to a paper pressing frame hinged to the base.

[0013] Preferably, a paper cutting knife is provided on the outer side surface of the base on the side where the paper pressing block is provided, one end of the paper cutting knife is hinged to the base, and an operation handle is provided at the other end.

[0014] Preferably, support pads arranged in an array are provided at the lower end of the base.

[0015] The beneficial effects of the present utility model are as follows: The device provided by the present utility model can set different numbers of punching units as needed during use. When arranging multiple punching units, the distance between adjacent punching units can be adjusted, improving the application range of the device; during the punching operation, by rotating the handle structure, the gears inside the machine head rotate to drive the punching shaft to slide up and down in the vertical direction, and punching is completed by using each punching knife. Since flange bearings are provided on both sides of the gear, and the flange bearings are installed in the bearing grooves inside the machine head, an assembly method from the inside to the outside is adopted, and at the same time, the convex part of the limit ring abuts against the inner wall of the machine head to further improve the installation stability. The flange bearings can ensure that the gear structure maintains high stability, improving the punching accuracy and stability of the device. Description of the Drawings

[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts do not necessarily draw according to the actual ratio.

[0017] Figure 1 Stereogram of the adjustable manual punching and cutting device provided in the embodiment of the present utility model Figure 1 .

[0018] Figure 2 The three-dimensional view of the adjustable manual punching and cutting device provided in the embodiment of the present utility model Figure 2 。

[0019] Figure 3 The three-dimensional view of the punching unit of the adjustable manual punching and cutting device provided in the embodiment of the present utility model

[0020] Figure 4 The assembly drawing of the punching unit of the adjustable manual punching and cutting device provided in the embodiment of the present utility model

[0021] Reference numerals: base 100, strip-shaped installation groove 110, machine head 200, punching shaft 300, rack part 310, punching knife 400, gear 500, rotating shaft 600, handle structure 700, flange bearing 800, limiting ring convex 810, adjusting nut 900, return spring 1000, fixing plate 1100, gasket 1200, paper blocking slider 1300, paper pressing block 1400, paper pressing frame 1500, paper cutting knife 1600, support pad 1700 Detailed implementation manners

[0022] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the drawings. The following embodiments are only used to illustrate the technical solution of the present utility model more clearly, so they are only examples and cannot be used to limit the protection scope of the present utility model

[0023] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meanings understood by those skilled in the art to which the present utility model belongs

[0024] Embodiment 1

[0025] As Figures 1 to 4As shown in the figure, a specific embodiment of the present utility model provides an adjustable manual punching and cutting device. This device has an adjustable function, and the punching structure has higher stability and precision. Specifically, it includes a base 100 and at least one punching unit. The punching unit includes a machine head 200, and the lower end of the machine head 200 is slidably installed on the upper end of the base 100 so that the distance between adjacent punching units can be adjusted. A punching shaft 300 that can slide up and down in the vertical direction is provided inside the machine head. A detachable punching knife 400 is installed at the lower end of the punching shaft 300. A gear 500 is provided inside the machine head, and the gear 500 meshes with a rack portion 310 provided on the outer circumference of the punching shaft 300. A rotating shaft 600 that is horizontally arranged and passes through each gear 500 is provided above the base 100. The end of the rotating shaft 600 is connected with a handle structure 700. Flange bearings 800 are provided on both sides of each gear 500 on the rotating shaft 600. A bearing groove 110 for fitting the flange bearings 800 is provided on the inner side wall of the machine head. A limiting ring protrusion 810 that abuts against the side wall of the machine head is provided on the end face of the flange bearing 800.

[0026] As Figures 1 to 4 shown, in this embodiment, the upper end of the base 100 can be provided with different numbers of punching units according to needs, and the machine heads of the punching units can be slidably installed on the base 100, so that the distance between adjacent punching units can be adjusted when arranging multiple punching units, improving the application range of this device. During the punching operation, by rotating the handle structure 700, each gear 500 inside the machine head 200 rotates to drive the punching shaft 300 to slide up and down in the vertical direction, and the punching is completed by using each punching knife 400. Since flange bearings 800 are provided on both sides of the gear 500, and the flange bearings 800 are installed in the bearing groove 110 inside the machine head 200 and further improve the installation stability by abutting against the inner wall of the machine head 200 through the limiting ring protrusion 810, the flange bearings 800 can ensure that the structure of the gear 500 maintains high stability, making the punching structure not easily damaged, which is beneficial to improving the punching precision and stability of this device.

[0027] As Figures 1 to 4 shown, in actual use, in order to adjust the drilling depth of the punching knife 400, an adjusting nut 900 is rotatably provided at the upper end of the machine head in this embodiment, and the adjusting nut 900 is screwed and adapted to the upper end of the punching shaft 300. By rotating the adjusting nut 900, the punching shaft 300 moves up and down vertically, and then the adjustment of the drilling depth of the punching knife 400 is completed. When the punching knife is installed, it is assembled by setting an installation hole at the lower end of the punching shaft, and a pre-tightening screw is provided to fix the punching knife. It is convenient for disassembly and replacement and has good stability. The punching knife adopts a hollow tool bit and should be replaced when it is worn after long-term use.

[0028] As Figures 1 to 4As shown, in order to enable the punching knife 400 to automatically return to the initial position after punching is completed, a return spring 1000 sleeved on the punching shaft 300 is provided inside the machine head in this embodiment. In this way, after the punching shaft 300 moves downward, the return spring 1000 is compressed to accumulate elastic force, and after punching is completed, the punching shaft 300 moves upward under the action of the elastic force to achieve automatic reset.

[0029] As described above, the device starts the driving gear 500 through the rotation of the rotating shaft 600 to drive the punching shaft 300 to move up and down. In this embodiment, the handle structure 700 is in a U-shaped structure and is fixedly connected to the end of the rotating shaft 600. It is convenient to press down the handle to make the rotating shaft 600 rotate stably. In practical applications, the cross-section of the rotating shaft 600 is polygonal, such as a regular pentagon, a regular hexagon, etc., so that the spacing of each punching unit can be adjusted slidably and the gear 500 can be driven to rotate.

[0030] As Figures 1 to 4 As shown, in order to realize the adjustment operation of the punching unit, a strip-shaped installation groove 110 is provided on the base 100 corresponding to the lower part of the machine head 200 in this embodiment. A fixing plate 1100 is provided on the lower surface of the base 100, and fixing bolts passing through the strip-shaped installation groove 110 and fixed to the lower end of the machine head 200 are provided on the fixing plate 1100. In this way, after the machine head 200 slides to the appropriate position along the strip-shaped installation groove 110, the machine head 200 is fixed by the fixing plate 1100, which is not only convenient for adjustment but also has higher stability after fixing.

[0031] As Figures 1 to 4 As shown, a gasket 1200 is also provided on the upper end of the base 100 corresponding to the lower part of the punching knife 400 in this embodiment, and the gasket 1200 fits in a gasket groove provided above the base 100. The gasket 1200 can increase the friction at the punching position to keep the paper material to be punched stable. Since the punching knife 400 will pass through the gasket 1200, the gasket 1200 needs to be replaced after long-term use, and the gasket 1200 can be made of rubber sheet material.

[0032] As Figures 1 to 4 As shown, when performing punching operations, it is necessary to limit the material. In this embodiment, paper blocking sliders 1300 are provided on the outer sides of the lower ends of the machine heads 200 of the punching units on both outer sides of the upper end of the base 100. The paper blocking sliders 1300 can abut against the outer side surface of the material to play a limiting role; the paper blocking sliders 1300 are slidably installed on the outer side surface of the machine head through a screw structure for adjustment, which is convenient for the operator to control. When performing punching operations, it is necessary to ensure that the base 100 remains stable. Therefore, support pads 1700 arranged in an array are provided at the lower end of the base 100.

[0033] Embodiment Two

[0034] As Figure 1As shown in the figure, in this embodiment, a paper pressing block 1400 is provided on one side of the upper end of the base 100. One end of the paper pressing block 1400 is rotatably connected to a paper pressing frame 1500 hinged to the base 100. In addition, a paper cutter 1600 is provided on the outer side of the base 100 on the side where the paper pressing block 1400 is provided. One end of the paper cutter 1600 is hinged to the base 100, and an operation handle is provided at the other end. In this way, the side of the paper material can be fixed by the paper pressing block 1400, and by rotating the operation handle, the paper cutter 1600 can cut off the edge of the paper material. In order to improve the cutting accuracy, scale marks also need to be set on the upper end of the base 100 to facilitate precise cutting and punching operations.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

Claims

1. An adjustable manual punching and cutting device, comprising a base (100), characterized in that, It further includes at least one punching unit; The punching unit includes a machine head (200), and the lower end of the machine head (200) is slidably mounted on the upper end of the base (100) so that the distance between adjacent punching units can be adjusted; A punching shaft (300) capable of sliding up and down in the vertical direction is provided in the machine head (200). A detachable punching knife (400) is installed at the lower end of the punching shaft (300). A gear (500) is provided in the machine head (200). The gear (500) meshes with a rack portion (310) provided on the outer periphery of the punching shaft (300). A rotating shaft (600) horizontally arranged and passing through each gear (500) is provided above the base (100). Flange bearings (800) are provided on both sides of each gear (500) on the rotating shaft (600). A bearing groove for fitting the flange bearing (800) is provided on the inner side wall of the machine head (200). A limiting ring protrusion (810) abutting against the side wall of the machine head is provided on the end face of the flange bearing (800).

2. The adjustable manual punching and cutting device according to claim 1, wherein, An adjusting nut (900) is rotatably provided at the upper end of the machine head. The adjusting nut (900) is threadedly engaged with the upper end of the punching shaft (300).

3. The adjustable manual punching and cutting device according to claim 1, characterized in that, A return spring (1000) sleeved on the punching shaft (300) is provided in the machine head.

4. The adjustable manual punching and cutting device according to claim 1, wherein, The end of the rotating shaft (600) is connected with a handle structure (700). The handle structure (700) is in a U-shaped structure and is fixedly connected with the end of the rotating shaft (600).

5. The adjustable manual punching and cutting device according to claim 1, characterized in that, A strip-shaped installation groove (110) is provided on the base (100) corresponding to the lower part of the machine head (200). A fixing plate (1100) is provided on the lower surface of the base (100). A fixing bolt passing through the strip-shaped installation groove (110) and fixed to the lower end of the machine head (200) is provided on the fixing plate (1100).

6. The adjustable manual punching and cutting device according to claim 1, wherein, A gasket (1200) is provided above the base (100) corresponding to the lower part of the punching knife (400). The gasket (1200) is fitted in a gasket groove provided on the base (100).

7. The adjustable manual punching and cutting device according to claim 1, characterized in that Paper blocking sliders (1300) are provided on the outer sides of the lower ends of the machine heads (200) of the punching units located on both outer sides of the upper end of the base (100).

8. The adjustable manual punching and cutting device according to claim 1, characterized in that A paper pressing block (1400) is provided on one side of the upper end of the base (100). One end of the paper pressing block (1400) is rotatably connected with a paper pressing frame (1500) hinged to the base (100).

9. The adjustable manual punching and cutting device according to claim 1, characterized in that A paper cutting knife (1600) is provided on the outer side surface of the base (100) on the side where the paper pressing block (1400) is provided. One end of the paper cutting knife (1600) is hinged to the base (100), and an operation handle is provided at the other end.

10. The adjustable manual punching and cutting device according to claim 1, characterized in that Support pads (1700) arranged in an array are provided at the lower end of the base (100).

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