Pressing adjusting type multi-hole punching machine

Abstract

The utility model discloses a pressing adjusting type multi-hole punching machine which comprises a base, a gland and a plurality of punching knives. A paper groove allowing paper to be embedded is formed in the side portion of the base, a row of guide holes are formed in the upper side of the paper groove, a row of paper cutting holes are formed in the lower side of the paper groove, and the guide holes are aligned with the paper cutting holes one by one. The pressing cover is movably arranged above the base up and down, a supporting part is arranged in the pressing cover, a row of pressing assemblies are arranged on the supporting part, and the pressing assemblies are aligned with the guide holes one by one; the upper ends of the stamping knives are connected to the pressing assemblies in a one-to-one correspondence mode, the lower ends of the stamping knives are matched in the guide holes in a one-to-one correspondence mode, and the stamping knives can be pressed downwards and locked at the use height or rebound to the non-use height by pressing the pressing assemblies. According to the utility model, the number of punched holes can be adjusted according to actual requirements, and the use is more flexible.

Description

Technical Field

[0001] The utility model relates to the technical field of office equipment, in particular to a press-adjustable multi-hole punching machine. Background Art

[0002] A hole punch is a common office equipment, mainly used to punch holes in materials such as paper and cards for binding or fixing.

[0003] Chinese utility model patent CN219337934U discloses a multi-blade punching machine, in which a plurality of punching knives are fixed by a latch, and a plurality of holes can be punched at one time. However, the punching knives of the multi-blade punching machine are fixed, and the punching machine is provided with a plurality of punching knives, and can only punch a corresponding number of holes at one time, so the number of holes punched cannot be adjusted according to actual needs. Utility Model Content

[0004] In view of the defects in the prior art, the utility model provides a press-adjustable multi-hole punching machine, so that the number of holes punched can be adjusted according to actual needs, and the use is more flexible.

[0005] The utility model provides a press-adjustable multi-hole punching machine, comprising:

[0006] A base, wherein a paper slot for inserting paper is provided on the side of the base, a row of guide holes is provided on the upper side of the paper slot, and a row of paper cutting holes is provided on the lower side of the paper slot, and each of the guide holes is aligned with each of the paper cutting holes;

[0007] A pressure cover, the pressure cover is movably arranged above the base, a support portion is arranged inside the pressure cover, a row of pressing components is arranged on the support portion, and each group of the pressing components is aligned with each guide hole one by one;

[0008] There are multiple punching knives, the upper ends of the punching knives are connected to the pressing components one by one, and the lower ends of the punching knives are matched in the guide holes one by one. By pressing the pressing components, the punching knives can be pressed down and locked at the height of use or rebound to the height of no use.

[0009] Furthermore, the pressing assembly includes a mounting hole, a pressing cap, a sliding claw sleeve and a pressing spring;

[0010] The mounting hole is arranged on the support part, and an inner lining ring is arranged in the mounting hole. The lower end of the inner lining ring is provided with a plurality of deep grooves and shallow grooves extending upward, and each of the deep grooves and shallow grooves is spaced from each other in the circumferential direction. The lower end of the inner lining ring is located between adjacent deep grooves and shallow grooves and is provided with a first inclined surface inclined in the same direction;

[0011] The lower part of the pressing cap is installed in the inner liner ring in a circumferentially locked and axially slidable manner, and the lower end of the pressing cap is provided with a toggle tooth along the circumferential direction;

[0012] The sliding claw sleeve is arranged in the mounting hole at the lower side of the pressing cap, and the outer periphery of the sliding claw sleeve is provided with a plurality of convex rails extending in the axial direction and corresponding to each of the deep grooves or shallow grooves one by one, and the upper end of each of the convex rails is provided with a second inclined surface opposite to the first inclined surface, and the upper end of the sliding claw sleeve is provided with a driven tooth meshing with the shifting tooth along the circumferential direction, and the upper end of the punch is fixed to the lower end of the sliding claw sleeve;

[0013] A support ring is provided at the lower end of the mounting hole, and the pressing spring is supported between the support ring and the lower end of the sliding claw sleeve.

[0014] Furthermore, an openable top cover is provided on the top of the pressing cover, and the top cover covers the outside of each pressing cap.

[0015] Furthermore, a return spring is included, and the return spring is supported between the top of the base and the support portion in the pressure cover.

[0016] Furthermore, the outer sides of both side ends of the upper part of the base are vertically provided with card slots, the pressure cover is covered outside the base, and the inner sides of both side ends of the lower part of the pressure cover are provided with card hooks, and each of the card hooks is correspondingly clamped in each of the card slots.

[0017] Furthermore, a detachable confetti box is provided at the bottom of the base.

[0018] Furthermore, one side end of the base is provided with a positioning ruler located on the extension line of the paper trough, and the positioning ruler is provided with at least one positioning column and a mounting groove for installing the positioning column, the mounting groove connects the side and top of one side of the positioning ruler, and the lower part of the positioning column is hinged in the mounting groove, and when the positioning column is rotated to face upward, its top protrudes from the top surface of the positioning ruler, and when the positioning column is rotated to face the side, its top retracts to the lower side of the top surface of the positioning ruler.

[0019] Furthermore, two positioning posts are provided on the positioning ruler along the length direction.

[0020] Furthermore, one end of the positioning ruler is hinged to the base, so that the positioning ruler can be folded and stored on one side of the base or unfolded to the extension line of the paper slot;

[0021] Alternatively, the positioning ruler is detachably connected to the side end of the base.

[0022] The beneficial effects of the utility model are embodied in:

[0023] The present application fixes each punching knife one by one at the lower end of each pressing component on the pressure cover, and the punching knife can be pushed downward or retracted upward by pressing each pressing component, so that the punching knife can be pushed out to the required height for use or retracted to the height not in use. When punching, the paper to be punched is inserted into the paper slot on the side, and the pressure cover is pushed downward. The paper can be punched by the punching knife pushed downward, and the retracted punching knife will not punch holes in the paper. Therefore, the present application can choose to use a corresponding number of punching knives according to actual needs, and then adjust the number of holes to be punched, which is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0025] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0026] Figure 2 A top view of an embodiment of the utility model;

[0027] Figure 3 for Figure 2 AA section view;

[0028] Figure 4 A side view of an embodiment of the utility model;

[0029] Figure 5 for Figure 4 BB cross-sectional view;

[0030] Figure 6 This is a schematic diagram of the positioning ruler of the embodiment of the utility model when it is folded;

[0031] Figure 7 This is a schematic diagram of the interior of the mounting hole of an embodiment of the utility model;

[0032] Figure 8 It is a schematic structural diagram of a pressing cap and a sliding claw sleeve according to an embodiment of the utility model.

[0033] In the attached drawings, 100-base; 110-paper slot; 120-guide hole; 130-paper cutting hole; 140-card slot; 150-paper scrap box; 200-pressing cover; 210-support part; 220-pressing assembly; 221-mounting hole; 2211-lining ring; 2212-deep groove; 2213-shallow groove; 2214-first inclined surface; 2215-support ring; 222-pressing cap; 2221-moving tooth; 223-sliding claw sleeve; 2231-convex rail; 2232-second inclined surface; 2233-driven tooth; 224-pressing spring; 230-card hook; 300-punch knife; 400-top cover; 500-reset spring; 600-positioning ruler; 610-positioning column; 620-mounting slot. DETAILED DESCRIPTION

[0034] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0035] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0036] like Figure 1-Figure 8 The embodiment of the utility model provides a press-adjustable multi-hole punching machine, including a base 100, a pressing cover 200 and a plurality of punching knives 300.

[0037] A paper slot 110 for inserting paper is provided on the side of the base 100 , a row of guide holes 120 is provided on the upper side of the paper slot 110 , and a row of paper cutting holes 130 is provided on the lower side of the paper slot 110 , and each guide hole 120 is aligned with each paper cutting hole 130 .

[0038] The pressure cover 200 is movably disposed above the base 100 , and a support portion 210 is disposed inside the pressure cover 200 . A row of pressing components 220 is disposed on the support portion 210 . Each group of pressing components 220 is aligned with each guide hole 120 one by one.

[0039] The upper ends of the punching knives 300 are connected to the pressing assemblies 220 one by one, and the lower ends of the punching knives 300 are arranged in the guide holes 120 one by one. By pressing the pressing assemblies 220, the punching knives 300 can be pressed down and locked at the height for use or rebound to the height not for use.

[0040] The pressing assembly 220 of this embodiment can adopt a pressing structure similar to a ballpoint pen. Figure 3 , Figure 7 and Figure 8 The pressing assembly 220 includes a mounting hole 221 , a pressing cap 222 , a sliding claw sleeve 223 and a pressing spring 224 .

[0041] The mounting hole 221 is arranged on the support part 210, and an inner lining ring 2211 is arranged in the mounting hole 221. The lower end of the inner lining ring 2211 is provided with a plurality of deep grooves 2212 and shallow grooves 2213 extending upward, and each deep groove 2212 and shallow groove 2213 is spaced apart from each other in the circumferential direction. The lower end of the inner lining ring 2211 is located between adjacent deep grooves 2212 and shallow grooves 2213 and is provided with a first inclined surface 2214 inclined in the same direction.

[0042] The lower portion of the pressing cap 222 is installed in the inner liner ring 2211 in a circumferentially locked and axially sliding manner, and the lower end of the pressing cap 222 is provided with a shifting tooth 2221 along the circumferential direction.

[0043] The sliding claw sleeve 223 is arranged in the mounting hole 221 on the lower side of the pressing cap 222. The outer periphery of the sliding claw sleeve 223 is provided with a plurality of convex rails 2231 extending axially and corresponding to each deep groove 2212 or shallow groove 2213. The upper end of each convex rail 2231 is provided with a second inclined surface 2232 opposite to the first inclined surface 2214. The upper end of the sliding claw sleeve 223 is provided with a driven tooth 2233 meshing with the driving tooth 2221 along the circumferential direction. The upper end of the punch 300 is fixed to the lower end of the sliding claw sleeve 223.

[0044] A support ring 2215 is provided at the lower end of the mounting hole 221 , and the pressing spring 224 is supported between the support ring 2215 and the lower end of the sliding claw sleeve 223 .

[0045] When the punching knife 300 is pushed out, the pressing cap 222 is pushed downward, and the pressing cap 222 pushes the outer convex rail 2231 of the sliding claw sleeve 223 to exit the deep groove 2212, and the tip of the second inclined surface 2232 moves to the lower side (critical point) of the tip of the first inclined surface 2214 close to the deep groove 2212 side, and the pressing cap 222 drives the driven tooth 2233 to drive the sliding claw sleeve 223 to rotate along with the toggle tooth 2221, so that the tip of the second inclined surface 2232 passes over the tip of the first inclined surface 2214 close to the deep groove 2212 side, and then the pressing cap 222 is released, and the pressing spring 224 pushes the sliding claw sleeve 223 and the pressing cap 222 to move upward, and the sliding claw sleeve 223 rotates under the action of the first inclined surface 2214 and the second inclined surface 2232, so that the convex rail 2231 outside the sliding claw sleeve 223 is stuck in the shallow groove 2213, thereby pushing the punching knife 300 out and locking it at the height of use.

[0046] When the punching knife 300 is retracted, the pressing cap 222 is pushed downward, and the pressing cap 222 pushes the tip of the second inclined surface 2232 of the outer convex rail 2231 of the sliding claw sleeve 223 to move to the lower side (critical point) of the tip of the first inclined surface 2214 close to the shallow groove 2213. The pressing cap 222 drives the driven tooth 2233 through the toggle tooth 2221 to drive the sliding claw sleeve 223 to rotate accordingly, so that the tip of the second inclined surface 2232 passes over the tip of the first inclined surface 2214 close to the shallow groove 2213. Then the pressing cap 222 is released, and the pressing spring 224 pushes the sliding claw sleeve 223 and the pressing cap 222 to move upward. The sliding claw sleeve 223 rotates under the action of the first inclined surface 2214 and the second inclined surface 2232, so that the convex rail 2231 outside the sliding claw sleeve 223 slides into the deep groove 2212, thereby retracting the punching knife 300 to a height where it is not used.

[0047] The present application fixes each punching knife 300 one by one to the lower end of each pressing component 220 on the pressure cover 200, and the punching knife 300 can be pushed downward or retracted upward by pressing each pressing component 220, so that the punching knife 300 can be pushed out to the required height for use or retracted to the height not in use. When punching, the paper to be punched is inserted into the paper slot 110 on the side, and the pressure cover 200 is pushed downward. The paper can be punched by the pushed out punching knife 300, and the retracted punching knife 300 will not punch the paper. Therefore, the present application can choose to use a corresponding number of punching knives 300 according to actual needs, and then adjust the number of holes to be punched, which is more flexible to use.

[0048] Reference Figure 3 In this embodiment, six punching knives 300 are specifically arranged, which can satisfy the punching requirements of 5 holes, 6 holes and 3 holes at a time, and can meet the binding requirements of 30 holes, 24 holes, 20 holes, 6 holes and 9 holes accordingly. According to the paper, it can meet the punching and binding requirements of A4, A5, B5, A6, A7 and other sizes. In short, it is not limited to paper, flexible and changeable, one machine can be used for multiple purposes, and the number of holes is not limited.

[0049] Reference Figure 3 The top of the pressing cover 200 is provided with an openable top cover 400, and the top cover 400 covers the outside of each pressing cap 222. When each punching knife 300 needs to be adjusted, the top cover 400 is opened, and after the adjustment of each punching knife 300 is completed, the top cover 400 is covered.

[0050] The present embodiment also includes a return spring 500, which is supported between the top of the base 100 and the support portion 210 in the pressure cover 200. When the pressure cover 200 is pressed downward to punch a hole, the return spring 500 is compressed. After the punching is completed, when the pressure cover 200 is released, the pressure cover 200 will rebound and reset under the action of the return spring 500.

[0051] Preferably, the outer sides of both side ends of the upper part of the base 100 are provided with card slots 140 along the vertical direction, the pressure cover 200 covers the outside of the base 100, and the inner sides of both side ends of the lower part of the pressure cover 200 are provided with hooks 230, and each hook 230 is correspondingly stuck in each card slot 140, and the function of the cooperation between the hook 230 and the card slot 140 is to prevent the pressure cover 200 and the base 100 from separating.

[0052] In this embodiment, a detachable scrap box 150 is provided at the bottom of the base 100. The scraps generated by punching can be collected in the scrap box 150. The scrap box 150 can be removed from the base 100 to facilitate dumping of the collected scraps.

[0053] Reference Figure 1 A positioning ruler 600 is provided on one side end of the base 100 and is located on the extension line of the paper slot 110. The positioning ruler 600 is provided with at least one positioning column 610 and a mounting slot 620 for mounting the positioning column 610. The mounting slot 620 connects the side and the top of one side of the positioning ruler 600. The lower part of the positioning column 610 is hinged in the mounting slot 620. When the positioning column 610 rotates to face the upper part, its top protrudes from the top surface of the positioning ruler 600. When the positioning column 610 rotates to face the side, its top retreats to the lower side of the top surface of the positioning ruler 600. When punching holes in paper, it is generally necessary to punch several groups of holes in succession. When punching the holes at the back, the positioning column 610 can be positioned in the holes punched in front of the paper, so as to position the distance between the front and rear groups of holes. When the positioning column 610 is not in use, the positioning column 610 can be rotated to the side to be retracted.

[0054] Preferably, two positioning posts 610 are provided on the positioning ruler 600 along the length direction. By providing two positioning posts 610 on the positioning ruler 600, when one positioning post 610 is in use, the other positioning post 610 needs to be retracted. Different holes on the paper can be positioned by different positioning posts 610, and the punching spacing between two adjacent groups of holes can be adjusted.

[0055] Reference Figure 5 and Figure 6 In this embodiment, one end of the positioning ruler 600 is hinged to the base 100, so that the positioning ruler 600 can be folded and stored on one side of the base 100 or unfolded to the extension line of the paper slot 110. In this way, when not in use, the positioning ruler 600600 can be folded and stored (such as Figure 6 ), and then expand it when using it (as shown Figure 5 shown).

[0056] In other embodiments, the positioning ruler 600 is detachably connected to the side end of the base 100, for example, by a plug-in connection method, and the positioning ruler 600 is installed when in use and removed when not in use.

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. 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 utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A press-adjustable multi-hole punch, characterized in that: include: A base, wherein a paper slot for inserting paper is provided on the side of the base, a row of guide holes is provided on the upper side of the paper slot, and a row of paper cutting holes is provided on the lower side of the paper slot, and each of the guide holes is aligned with each of the paper cutting holes; A pressure cover, the pressure cover is movably arranged above the base, a support portion is arranged inside the pressure cover, a row of pressing components is arranged on the support portion, and each group of the pressing components is aligned with each guide hole one by one; There are multiple punching knives, the upper ends of the punching knives are connected to the pressing components one by one, and the lower ends of the punching knives are matched in the guide holes one by one. By pressing the pressing components, the punching knives can be pressed down and locked at the height of use or rebound to the height of no use.

2. The pressure-adjustable multi-hole punch according to claim 1, characterized in that: The pressing assembly comprises a mounting hole, a pressing cap, a sliding claw sleeve and a pressing spring; The mounting hole is arranged on the support part, and an inner lining ring is arranged in the mounting hole. The lower end of the inner lining ring is provided with a plurality of deep grooves and shallow grooves extending upward, and each of the deep grooves and shallow grooves is spaced from each other in the circumferential direction. The lower end of the inner lining ring is located between adjacent deep grooves and shallow grooves and is provided with a first inclined surface inclined in the same direction; The lower part of the pressing cap is installed in the inner liner ring in a circumferentially locked and axially slidable manner, and the lower end of the pressing cap is provided with a toggle tooth along the circumferential direction; The sliding claw sleeve is arranged in the mounting hole at the lower side of the pressing cap, and the outer periphery of the sliding claw sleeve is provided with a plurality of convex rails extending in the axial direction and corresponding to each of the deep grooves or shallow grooves one by one, and the upper end of each of the convex rails is provided with a second inclined surface opposite to the first inclined surface, and the upper end of the sliding claw sleeve is provided with a driven tooth meshing with the shifting tooth along the circumferential direction, and the upper end of the punch is fixed to the lower end of the sliding claw sleeve; A support ring is provided at the lower end of the mounting hole, and the pressing spring is supported between the support ring and the lower end of the sliding claw sleeve.

3. The pressure-adjustable multi-hole punch according to claim 2, characterized in that: The top of the pressing cover is provided with an openable top cover, and the top cover covers the outside of each pressing cap.

4. The pressure-adjustable multi-hole punch according to claim 1, characterized in that: A return spring is also included, and the return spring is supported between the top of the base and the support portion in the pressure cover.

5. The pressure-adjustable multi-hole punch according to claim 4, characterized in that: The outer sides of both side ends of the upper part of the base are vertically provided with card slots, the pressure cover is covered outside the base, and the inner sides of both side ends of the lower part of the pressure cover are provided with card hooks, and each of the card hooks is correspondingly clamped in each of the card slots.

6. The pressure-adjustable multi-hole punch according to claim 1, characterized in that: A detachable paper scrap box is provided at the bottom of the base.

7. The pressure-adjustable multi-hole punch according to claim 1, characterized in that: One side end of the base is provided with a positioning ruler located on the extension line of the paper slot, and the positioning ruler is provided with at least one positioning column and a mounting groove for mounting the positioning column, the mounting groove communicates with the side and top of one side of the positioning ruler, and the lower part of the positioning column is hinged in the mounting groove, when the positioning column rotates to face upward, its top protrudes from the top surface of the positioning ruler, and when the positioning column rotates to face the side, its top retracts to the lower side of the top surface of the positioning ruler.

8. The pressure-adjustable multi-hole punch according to claim 7, characterized in that: Two positioning columns are arranged on the positioning ruler along the length direction.

9. The pressure-adjustable multi-hole punch according to claim 7, characterized in that: One end of the positioning ruler is hinged to the base, so that the positioning ruler can be folded and stored on one side of the base or unfolded to the extension line of the paper slot; Alternatively, the positioning ruler is detachably connected to the side end of the base.

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