Thread adjusting type multi-hole punching machine

Abstract

The utility model discloses a thread adjusting type multi-hole perforating machine which comprises a base, a gland and a plurality of cutter cores. 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 gland is movably arranged above the base up and down, a supporting part is arranged in the gland, a row of threaded holes are formed in the supporting part, and the threaded holes are aligned with the guide holes one by one; each cutter core is provided with a screw rod part, a knob part arranged at the upper end of the screw rod part and a stamping cutter part arranged at the lower end of the screw rod part, the screw rod parts of the cutter cores are in threaded connection in the threaded holes in a one-to-one correspondence mode, and the stamping cutter parts are matched in the guide holes in a one-to-one correspondence mode. 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 thread-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, wherein a plurality of blade cores are fixed inside the multi-blade punching machine by a latch, and a plurality of holes can be punched at one time. However, the blade cores of the multi-blade punching machine are fixed, and the punching machine is provided with a plurality of blade cores, and can only punch a corresponding number of holes at one time, and thus 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 thread-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 thread-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 gland, the gland is movably disposed above the base, a support portion is disposed inside the gland, a row of threaded holes is disposed on the support portion, and each of the threaded holes is aligned one by one with each of the guide holes;

[0008] A plurality of knife cores are provided, each knife core having a screw portion, a knob portion arranged at the upper end of the screw portion, and a punch portion arranged at the lower end of the screw portion. The screw portions of each knife core are threadedly connected in each threaded hole one by one, and each punch portion is adapted in each guide hole one by one.

[0009] Furthermore, an openable top cover is provided on the top of the pressure cover, and the top cover covers the outside of the knob part of each of the knife cores.

[0010] 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.

[0011] Furthermore, the outer diameters of the knob portion and the punch portion are greater than the rod diameter of the screw portion, so that the knob portion and the punch portion can be positioned at the upper and lower sides of the support portion, respectively.

[0012] Furthermore, a plurality of grooves are provided on the upper side of the support portion for the lower ends of the knob portions to be embedded in, and the grooves are arranged one by one at the upper ends of the spaced threaded holes.

[0013] 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.

[0014] Furthermore, two positioning posts are provided on the positioning ruler along the length direction.

[0015] 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;

[0016] Alternatively, the positioning ruler is detachably connected to the side end of the base.

[0017] Furthermore, the support portion and the pressure cover are integrally formed, and 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 hooks, and each of the hooks is correspondingly clamped in each of the card slots.

[0018] Furthermore, the supporting part is a cross beam, and a receiving groove is provided on the upper part of the base. Through grooves are vertically opened on the side walls at both side ends of the receiving groove, and guide rails are vertically provided on the inner sides of the side walls at both side ends of the receiving groove. The two side ends of the cross beam are respectively slidably installed on the guide rails, and through holes are provided at both ends of the pressure cover. The pressure cover is covered on the outer side of the upper part of the base, and the two ends of the cross beam are respectively fixed with a cross pin screw that passes through the through groove and the through hole at the corresponding end.

[0019] The beneficial effects of the utility model are embodied in:

[0020] The knife core of the present application is threadedly connected to the supporting part in the pressure cover through the screw part, and the height of the punching knife part can be adjusted by rotating the knife core through the knob part, so that the knife core punching knife part that needs to be used can be lowered, and the knife core punching knife part that does not need to be used can be raised. When punching holes, the paper that needs 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 lowered knife core punching knife part, and the raised knife core punching knife part will not punch holes in the paper. Therefore, the present application is convenient for adjusting the number of holes to be punched according to actual needs, and is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0023] Figure 2 A top view of an embodiment of the utility model;

[0024] Figure 3 for Figure 2 AA section view;

[0025] Figure 4 A side view of an embodiment of the utility model;

[0026] Figure 5 for Figure 4 BB cross-sectional view;

[0027] Figure 6 This is a schematic diagram of a positioning ruler in an embodiment of the utility model when it is folded;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of another embodiment of the utility model;

[0029] Figure 8 A top view of another embodiment of the utility model;

[0030] Fig. 9 for Figure 8 CC cross-sectional view.

[0031] In the accompanying drawings, 100-base; 110-paper slot; 120-guide hole; 130-paper cutting hole; 140-card slot; 150-accommodating slot; 151-through slot; 152-guide rail; 160-paper scrap box; 200-pressure cover; 210-support part; 211-threaded hole; 212-groove; 213-cross pin screw; 220-hook; 230-through hole; 300-knife core; 310-screw part; 320-knob part; 330-punch part; 400-top cover; 500-reset spring; 600-positioning ruler; 610-positioning column; 620-installation slot. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] like Figure 1-Figure 6 As shown, this embodiment provides a thread-adjustable multi-hole punch, including a base 100 , a pressure cover 200 and a plurality of blade cores 300 .

[0035] 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 .

[0036] The pressure cover 200 is movably disposed above the base 100 , and a support portion 210 is disposed inside the pressure cover 200 . The support portion 210 is provided with a row of threaded holes 211 , and each threaded hole 211 is aligned with each guide hole 120 one by one.

[0037] The knife core 300 has a screw portion 310, a knob portion 320 arranged at the upper end of the screw portion 310, and a punch portion 330 arranged at the lower end of the screw portion 310. The screw portions 310 of each knife core 300 are threadedly connected to each threaded hole 211 one by one, and each punch portion 330 is adapted to each guide hole 120 one by one.

[0038] The knife core 300 of the present application is threadedly connected to the support part 210 in the pressure cover 200 through the screw part 310, and the height of the punching part 330 can be adjusted by rotating the knife core 300 through the knob part 320. In this way, the punching part 330 of the knife core 300 that needs to be used can be lowered, and the punching part 330 of the knife core 300 that does not need to be used can be raised. 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 lowered punching part 330 of the knife core 300, and the raised punching part 330 of the knife core 300 will not punch the paper. Therefore, the present application is convenient for adjusting the number of holes to be punched according to actual needs, and is more flexible to use.

[0039] Reference Figure 3 The knife core 300 of this embodiment is specifically provided with 6 pieces, 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.

[0040] Reference Figure 3An openable top cover 400 is provided on the top of the pressure cover 200, and the top cover 400 covers the outside of the knob portion 320 of each knife core 300. When the height of each knife core 300 needs to be adjusted, the top cover 400 is opened, and after the height adjustment of the knife core 300 is completed, the top cover 400 can be covered.

[0041] Continue to refer to Figure 3 This 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 down to punch a hole, the return spring 500 is compressed. After the punching is completed, the pressure cover 200 is released, and the pressure cover 200 will rebound and reset under the action of the return spring 500.

[0042] Continue to refer to Figure 3 The outer diameters of the knob portion 320 and the punch portion 330 are larger than the rod diameter of the screw portion 310, so that the knob portion 320 and the punch portion 330 can be positioned at the upper and lower sides of the support portion 210, respectively. In this embodiment, the knob portion 320 and the punch portion 330 can be used to position the stroke of the knife core 300 when it is twisted up and cannot be twisted. When the knife core 300 is twisted down and cannot be twisted, the knife core 300 is adjusted to a height that is not needed. In this way, it is convenient to position the height of the knife core 300 when it is adjusted up and down. In order to facilitate assembly, the knob portion 320 and the screw portion 310 of the knife core 300 are an integrated structure, and the upper end of the punch portion 330 is sleeved on the lower end of the screw portion 310 by a threaded connection.

[0043] Preferably, the upper side of the support portion 210 is provided with a plurality of grooves 212 for the lower ends of the knob portions 320 to be embedded in, and the grooves 212 are provided one by one at the upper ends of the spaced threaded holes 211, such as Figure 3 As shown, the upper ends of the first, third and fifth threaded holes 211 from left to right are not provided with grooves 212, while the upper ends of the second, fourth and sixth threaded holes 211 are provided with grooves 212. By providing the grooves 212, when all the knife cores 300 are screwed down until they cannot be screwed down, the knife cores 300 provided with grooves 212 will be lower in height than the knife cores 300 not provided with grooves 212, so when punching holes in paper, the lower knife cores 300 will punch holes in the paper first, and the higher knife cores 300 will punch holes in the paper later, so that it is more labor-saving when the number of holes to be punched is large.

[0044] A scrap box is also provided at the bottom of the base 100, and the scraps generated by punching can be collected in the scrap box. The scrap box can be removed from the base 100 to facilitate dumping of the collected scraps.

[0045] Reference Figure 1A 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.

[0046] Preferably, two positioning posts 610 are provided on the positioning ruler 600 in the extension 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.

[0047] Reference Figure 5 and Figure 6 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, so that when not in use, the positioning ruler 600 can be folded and stored (such as Figure 6 ), and then expand it when using it (as shown Figure 5 shown).

[0048] In other embodiments, the positioning ruler 600 may also be connected to the side end of the base 100 in a detachable manner, such as by a plug-in connection method, and the positioning ruler 600 is installed when in use and removed when not in use.

[0049] In this embodiment, refer to Figure 3The support part 210 is integrally formed with the pressure cover 200. The outer sides of both sides of the upper part of the base 100 are vertically provided with card slots 140. The pressure cover 200 covers the outside of the base 100. The inner sides of both sides of the lower part of the pressure cover 200 are provided with hooks 220. Each hook 220 is correspondingly stuck in each card slot 140. The function of the hook 220 and the card slot 140 is to prevent the pressure cover 200 from separating from the base 100. In this embodiment, the base 100, the pressure cover 200 and the support part 210 are made of plastic. A metal part with a threaded hole 211 can be set at the position of each threaded hole 211 on the support part 210. Similarly, the knife core 300 is also a metal part. In this way, the threaded hole 211 and the thread mouth of the screw part 310 are not easily worn and are more durable.

[0050] In another embodiment, if Figure 7-Figure 9 As shown, the support part 210 is a cross beam, and a receiving groove 150 is provided on the upper part of the base 100. The side walls of the two side ends of the receiving groove 150 are vertically provided with through grooves 151, and the inner side of the side walls of the two side ends of the receiving groove 150 is vertically provided with guide rails 152. The two side ends of the cross beam are respectively slidably installed on the guide rails 152, and the two ends of the pressure cover 200 are provided with through holes 230. The pressure cover 200 covers the outer side of the upper part of the base 100. The two ends of the cross beam are respectively fixed with a cross pin screw 213 passing through the through groove 151 and the through hole 230 at the corresponding end. The cross beam of this embodiment is a metal part, and the pressure cover 200 and the base 100 are plastic parts. When assembling, the cross beam is first installed in the receiving groove 150 on the upper part of the base 100, and then the pressure cover 200 is covered, and the cross pin screws 213 are screwed into the two ends of the cross beam through the through holes 230 on both sides of the pressure cover 200.

[0051] 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 thread-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 gland, the gland is movably disposed above the base, a support portion is disposed inside the gland, a row of threaded holes is disposed on the support portion, and each of the threaded holes is aligned one by one with each of the guide holes; A plurality of knife cores are provided, each knife core having a screw portion, a knob portion arranged at the upper end of the screw portion, and a punch portion arranged at the lower end of the screw portion. The screw portions of each knife core are threadedly connected in each threaded hole one by one, and each punch portion is adapted in each guide hole one by one.

2. The thread-adjustable multi-hole punch according to claim 1, characterized in that: An openable top cover is arranged on the top of the pressure cover, and the top cover covers the outside of the knob part of each knife core.

3. The thread-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.

4. The thread-adjustable multi-hole punch according to claim 1, characterized in that: The outer diameters of the knob portion and the punch portion are greater than the rod diameter of the screw portion, so that the knob portion and the punch portion can be positioned at the upper and lower sides of the support portion respectively.

5. The thread-adjustable multi-hole punch according to claim 4, characterized in that: The upper side of the support portion is provided with a plurality of grooves for the lower ends of the knob portions to be embedded, and the grooves are arranged one by one at the upper ends of the spaced threaded holes.

6. The thread-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.

7. The thread-adjustable multi-hole punch according to claim 6, characterized in that: Two positioning columns are arranged on the positioning ruler along the length direction.

8. The thread-adjustable multi-hole punch according to claim 6, 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.

9. The thread-adjustable multi-hole punch according to any one of claims 1 to 8, characterized in that: The support part and the pressure cover are integrally formed, and the outer sides of the two 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 the two 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.

10. The thread-adjustable multi-hole punch according to any one of claims 1 to 8, characterized in that: The supporting part is a cross beam, and a receiving groove is provided on the upper part of the base. Through grooves are vertically opened on the side walls at both ends of the receiving groove, and guide rails are vertically provided on the inner sides of the side walls at both ends of the receiving groove. The two side ends of the cross beam are respectively slidably installed on the guide rails, and through holes are provided at both ends of the pressure cover. The pressure cover is covered on the outer side of the upper part of the base, and a cross pin screw is fixed at each end of the cross beam, which passes through the through groove and the through hole at the corresponding end.

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