CN204054198U - The piercing knife structure of paper punch - Google Patents
The piercing knife structure of paper punch Download PDFInfo
- Publication number
- CN204054198U CN204054198U CN201420416945.7U CN201420416945U CN204054198U CN 204054198 U CN204054198 U CN 204054198U CN 201420416945 U CN201420416945 U CN 201420416945U CN 204054198 U CN204054198 U CN 204054198U
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- Prior art keywords
- piercing knife
- paper
- arc
- curved surface
- shaped curved
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- 238000004080 punching Methods 0.000 claims abstract description 44
- 238000005520 cutting process Methods 0.000 claims abstract description 38
- 230000006835 compression Effects 0.000 abstract description 7
- 238000007906 compression Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 16
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model is the piercing knife structure about a kind of paper punch, described piercing knife consists predominantly of the cylinder of a force side and a punching end, described punching end presents the otch of a reverse V-shaped groove, described otch forms the cutting edge of two opposite sides, it is the arc-shaped curved surface of gradient angle that the bite upper surface of described two opposite sides is provided with one with piercing knife radial section, make piercing knife stamping-out paper and the cutting completing circle formula runs through time, the pressurized strength that described cutting edge can disperse paper scrap to change according to this, and described in there is angle arc-shaped curved surface can guide the eliminating that paper scrap changes fast and move, effective resistance to compression pression reducing punching, reach the punch operation effect of Portable power saving thus.
Description
Technical field
The utility model is the equipment about a kind of paper perforating, particularly relates to a kind ofly to reach punching fast and the piercing knife structure of paper punch of Portable power saving operation.
Background technology
Current, the application of paper punch is quite extensive, wherein, existing punching machine device has a piercing knife, described piercing knife top can compress force by a drive member, the strength imposed in Paper Diego needed for punching is preferably reduced as much as possible when paper perforating, please refer to the 1st, shown in 2 figure, substantially, described piercing knife (80) moves in Paper Diego along its y direction, and incrementally punch in aperture periphery, make piercing knife (80) form hole in the punching press of Paper Diego place.
Piercing knife (80) structure of existing paper punch, mainly bottom all discs of piercing knife (80), form a sharp keen reverse V-shaped groove otch (81), make it can form two cut points, the flute profile week cob loaf of described otch (81) contains arc-shaped curved surface (83) on two relative cutting edges (82) and, described two relative cutting edges (82) are the center line cuttings of arc-shaped curved surface (83) on otch, described upper arc-shaped curved surface (83) is level crossing (θ=0 °) with the horizontal radial cross section of piercing knife (80), described otch (81) cooperation cutting edge (82) is the spatial accommodation after producing paper cutting and Paper Diego cutting, this can by United States Patent (USP) 5, 730, 038 case is learnt, and described case separately discloses the cutting edge groove height of piercing knife and the corresponding to each other property of Paper Diego height, and one punching force relevant with the degree of depth of specific V-type groove, it is the angle of 60 ~ 75 degree between two cutting edges (82) of the described otch of another definition (81).
But, described piercing knife (80) operationally still has undesirable place, please coordinate the 3rd, 3.1, 4, described piercing knife shown in 4.1 figure (80) carries out the schematic diagram of paper perforating operation, described piercing knife (80) is the superiors first contacting paper (90) with two cutting edges (82), because equal altitudes design adopted by two cutting edges (82), that is the upper arc-shaped curved surface (83) of described otch (81) is level crossing (θ=0 °) with the radial section of piercing knife (80), so when punching initial, piercing knife (80) installs on paper (90), described cutting edge (82) will gradually downwards and compress described paper (90) simultaneously, the hole (901) that paper (90) is formed is cut towards complete circumference gradually by the camber line of two sides, the Cutting Drag that described piercing knife (80) meets be mean effort in two cutting edges (82) on initial cutting edge, moreover, otch (81) inner peripheral surface due to described piercing knife (80) bottom is the reverse V-shaped groove design of adopting isosceles, described arc-shaped curved surface (83) is level crossing (θ=0 °) with the radial section of piercing knife (80) again, so the paper scrap that punching hole (80) are formed after being punched by hole (901) changes, (91) will synchronously be out of shape towards grooved central place, finally compeled to squeeze between the V-type groove of described otch (81) in isosceles by compression, due to described paper scrap, repeatedly (91) flexibility of producing is quite high, especially (91) are changed in time terminating in described arc-shaped curved surface (83) at paper scrap, the resistance that described piercing knife (80) flat side meets with also increases relatively, please refer to the 11st figure: the signal chart of piercing knife force and stroke, it serves to show the piercing knife (80) of existing prior art, maximum peak strength is shown in the 4th figure, the otch (81) of the 4.1st figure impacts and produces into time paper (90), paper scrap repeatedly (91) is all compressed in otch (81) in isosceles in reverse V-shaped groove, being limited to arc surface (83) does not have angle to change, be level crossing (θ=0 °) with the horizontal radial cross section of piercing knife (80), so piercing knife (80) is before upper arc surface (83) position, rear end is all sustained height and does not have space release mobile, punching strength is caused to strengthen instantaneously, and as shown in Figure 11, will up to 98kg degree, until piercing knife (80) is deep into the secondary peak position of 4/1 stroke again, all could run through paper (90) and form complete hole (901), thus the process of punching is operated, user is needed comparatively to require great effort in punching moment, therefore, the radial deformation space holding paper scrap repeatedly (91) can be improved if run through at paper (90), can improve paper scrap repeatedly the compression of (91) flexibility compel to squeeze situation, effectively alleviate its operation force.
In view of the problem points of the piercing knife of above-mentioned existing paper punch, inventor of the present utility model does one's utmost the piercing knife structure that R & D design goes out a kind of paper punch.
Summary of the invention
Mainly change of the present utility model is the arc-shaped curved surface form of piercing knife, and main object is the piercing knife structure of the paper punch of the effect providing a kind of punching comparatively laborsaving and light.
For reaching above-mentioned purpose, the technological means that the utility model uses is the piercing knife structure being to provide a kind of paper punch, described piercing knife is cylindrical shape, it comprises a force side, one goes out the punching end of hole in order to stamping-out, described punching bottom end is formed with the otch of an inverted v-shaped groove, described otch two opposite sides are cutting edges, another two opposite sides are that the arc chord angle place formed in described otch upper end defines an arc-shaped curved surface, described arc-shaped curved surface is skewed along described piercing knife horizontal radial cross section, namely described arc-shaped curved surface includes a first end, one second end, described first end presents by a high position gradually towards the gradient angle of low level towards described second end.
The piercing knife structure of paper punch as above, wherein, the angle of arc-shaped curved surface described above is between 5 ° to 30 °.
The piercing knife structure of paper punch as above, wherein, the first end of arc-shaped curved surface described above is corresponding to the front end of above-mentioned piercing knife, and the second end of arc-shaped curved surface described above is corresponding to the rear end of above-mentioned piercing knife.
Therefore according to technological means of the present utility model, the beneficial effect brief description that the utility model can obtain is as follows:
1. the utility model be in the otch of the described punching end of piercing knife be provided with one present with piercing knife sagittal plane before, the arc-shaped curved surface of the different gradient shape of rear height, arc-shaped curved surface and piercing knife radial section is allowed to produce an angle, and appropriateness can strengthen the space of otch thus, therefore, when paper runs through, the utility model improves the radial deformation space holding paper scrap and change, namely improve paper scrap to change the crowded situation of compression of flexibility, repeatedly be able to displacement for the paper scrap cutting out punching and the pressure that paper is repeatedly punched can be disperseed, utilize arc-shaped curved surface to add large space and mobile that paper scrap changes can be guided fast get rid of, what effective reduction changed punching to paper scrap causes resistance to compression pression, reach the punch operation effect of comparatively Portable power saving.
2. the arc-shaped curved surface of piercing knife of the present utility model is provided with an angle, it can between 5 ° ~ 30 ° degree, the paper scrap that described cutting edge cuts repeatedly can be got rid of via arc-shaped curved surface guiding fast, therefore when maximum high peak force produces, paper has started to run through, the strength of secondary peak is comparatively early arrived, allows punching strength rise and fall comparatively mild, guarantee the quality of punching.
Accompanying drawing explanation
1st figure is the front-view schematic diagram of existing piercing knife;
2nd figure is the side elevational cross-section schematic diagram of existing piercing knife;
3rd figure is the action schematic diagram that existing piercing knife starts punching;
3.1st figure is that existing piercing knife exerts a force the action schematic diagram of maximum peak strength;
4th figure is the action schematic diagram that existing piercing knife imposes secondary peak strength;
4.1st figure is the end punching schematic diagram that existing piercing knife imposes secondary peak strength;
5th figure is the front-view schematic diagram of the utility model piercing knife;
6th figure is the side elevational cross-section schematic diagram of this Novel punching cutter;
7th figure is that the utility model starts puncture motion schematic diagram;
8th figure is that the utility model exerts a force the action schematic diagram of maximum peak strength;
9th figure is the action schematic diagram of the utility model force secondary peak strength;
10th figure is the action schematic diagram that the utility model completes punching;
11st figure is the actuating travel of existing piercing knife and the curve synoptic diagram of force distribution;
12nd figure is that existing piercing knife and the utility model implement the stroke of start and the comparison curves schematic diagram of force distribution.
main element label declaration
[the utility model]
(10) piercing knife (101) force side
(102) punching end (11) otch
(12) cutting edge (13) arc-shaped curved surface
(131) first end (132) second end
(14) angle (20) paper
(201) hole (21) paper scrap repeatedly.
［ prior art ］
(80) piercing knife (81) otch
(82) the upper arc-shaped curved surface of cutting edge (83)
(90) paper (901) hole
(91) paper scrap repeatedly.
Detailed description of the invention
The utility model is a kind of piercing knife structure of paper punch, first, please coordinate the 5th, shown in 6 figure, it is the piercing knife structure of paper punch in the utility model preferred embodiment, substantially stamping knife hole (10) are still cylindrical body, it includes a force side (101) and a punching end (102), wherein said force side (101) down can be compressed force by suitable pressure along y direction, and described punching end (102) is in order to cause punching effect to paper (20).
The utility model main feature designs at stamping knife hole (10) punching end (102), wherein said punching end (102) bottom is formed with the otch (11) of an inverted v-shaped groove, otch (11) two opposite sides are cutting edges (12) of tip shape, in order to impact paper (20), the effect of perforated holes, another two opposite sides are that the arc chord angle of upper limb in otch (11) forms an arc-shaped curved surface (13), especially described arc-shaped curved surface (13) is that the angle being gradient along piercing knife (10) radial section is formed, wherein the corresponding front end at piercing knife (10) punching end (102) of arc-shaped curved surface (13) is defined as first end (131), rear end is the second end (132), first end (131), second end (132) presents and has angle (14) towards the gradient tendency of low level with shape gradually by a high position, described angle (14) is the angle of arc-shaped curved surface (13) and piercing knife (10) radial section, preferred embodiment is 5 ° ~ 30 °, the space of otch (11) is made to produce changes in pitch in interior upper end.
It is more than the general introduction of the structure of each component of the utility model, position and the relation that is connected to each other; Action of the present utility model and expection are reached effect and are stated as rear:
Please coordinate the 7th, 8, 9, shown in 10 figure, it is the schematic diagram that the utility model piercing knife carries out punching start, the punching end (102) of described piercing knife (10) abuts against on paper (20), described piercing knife (10) is biased through its force side (101) and moves down, cause the cutting edge (12) of punching end (102) at the upper perforated holes (201) of paper (20), make cut lower paper scrap in hole (201) change (21) will bend downwards, still uncut paper (20) is then progressively upwards compressed and is arched upward, to engage and the hole (201) of reaching paper (20) runs through and breaks until line of cut completes gradually along the periphery line of circle, paper (20) runs through rear formation one compression compels crowded paper scrap repeatedly (21).
As shown in Figure 5, the utility model due to otch (11) the interior upper surface of described piercing knife (10) be that formation one extends slanted angle (14) arc-shaped curved surface (13), therefore, when cutting edge (12) and the second end (132) of being positioned at low level are when cutting paper (90) at first, described punching pressure progressively will correspond to high-order first end (131) cutting place, still uncut paper (20) is made to form tight overlapped shape, this is that second end (132) of low level is after cutting paper (20) forms hole (201), paper (20) in otch (11) can be pushed towards the high order end space of first end (131), make the paper scrap in first end (131) repeatedly (21) closely overlapped, as shown in Figure 8, when the maximum peak strength of punching stressed at this moment produces, its arc-shaped curved surface (13) tilted effectively disperses paper (20) pressurized strength, for paper scrap change (21) mobile, so punching labour-saving object effectively can be reached, due to maximum peak strength produce time, paper (20) has started to run through, the secondary peak strength exerted a force is arrived ahead of time, the first end (131) making arc-shaped curved surface (13) high-order with piercing knife (10) progressively cut run through paper (20) time, cutting place of described low level second end (132) first departs from punching pressure, the first end (131) of cutting edge (12) high position is in time running through paper (20), paper scrap repeatedly (21) passes variation by first end (131) towards the second end (132) cutting of low level, and progressively leave the otch (11) of piercing knife (10), as shown in Figure 10, until run through nethermost paper (20), by the time puncher stamping-out paper (20) run through punching and release pressure time, described paper scrap repeatedly (21) terminates drilling operation by being excluded completely.
Therefore the utility model suitably changes arc surface (13) and forms angle of inclination, make cutting edge (12) in cutting, contribute to the dispersion of Cutting Drag, effectively can alleviate the force of its punch operation, as the 12nd figure arranges in pairs or groups shown in the 6th figure, the utility model arc-shaped curved surface (13) presents 10 ° at angle (14), 20 °, the operating physical force value of 30 °, compare with existing prior art, the utility model is about the strength of about 76kg, the strength of more existing 95kg significantly reduces, therefore the utility model changes the design of piercing knife (10), the true service life that can promote usefulness and the cutting edge (12) cut.
In sum, the utility model relates to a kind of piercing knife structure of paper punch, described piercing knife mainly includes the cylinder of a force side and a punching end, it is the arc-shaped curved surface of gradient angle that the utility model is mainly provided with one with piercing knife radial section in the reverse V-shaped groove of described undershoot nose end, make piercing knife stamping-out paper and the cutting completing circle formula runs through time, the pressurized strength that described cutting edge can disperse paper scrap to change thus, and described in there is angle arc-shaped curved surface can guide the eliminating that paper scrap changes fast and move, effective resistance to compression pression reducing punching, reach the punch operation effect of Portable power saving thus.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.Any those skilled in the art, the equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.And it should be noted that, each part of the present utility model is not limited in above-mentioned overall applicability, the each technical characteristic described in description of the present utility model can select one to adopt separately or select the multinomial use that combines according to actual needs, therefore, the utility model covers other relevant with this case inventive point in the nature of things and combines and embody rule.
Claims (3)
1. the piercing knife structure of a paper punch, it is characterized in that, the piercing knife of the piercing knife structure of described paper punch is cylindrical shape, it comprises a force side, one goes out the punching end of hole in order to stamping-out, described punching bottom end is formed with the otch of an inverted v-shaped groove, described otch two opposite sides are cutting edges, another two opposite sides are that the arc chord angle place formed in described otch upper end defines an arc-shaped curved surface, the radial section of the relatively described piercing knife of described arc-shaped curved surface is skewed, namely described arc-shaped curved surface includes a first end, one second end, described first end presents by a high position gradually towards the angle of low level towards described second end.
2. the piercing knife structure of paper punch as claimed in claim 1, it is characterized in that, the angle of described arc-shaped curved surface is between 5 ° to 30 °.
3. the piercing knife structure of paper punch as claimed in claim 1, is characterized in that, the first end of described arc-shaped curved surface is corresponding to the front end of described piercing knife, and the second end of described arc-shaped curved surface is corresponding to the rear end of described piercing knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416945.7U CN204054198U (en) | 2014-07-28 | 2014-07-28 | The piercing knife structure of paper punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420416945.7U CN204054198U (en) | 2014-07-28 | 2014-07-28 | The piercing knife structure of paper punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204054198U true CN204054198U (en) | 2014-12-31 |
Family
ID=52195782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420416945.7U Expired - Fee Related CN204054198U (en) | 2014-07-28 | 2014-07-28 | The piercing knife structure of paper punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204054198U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107297427A (en) * | 2017-08-21 | 2017-10-27 | 贵州航太精密制造有限公司 | A kind of drift for being used to be punched interior six sides |
| CN107415324A (en) * | 2017-08-02 | 2017-12-01 | 温州正博印刷机械有限公司 | The perforating device of paper bag machine |
| CN110919039A (en) * | 2019-11-26 | 2020-03-27 | 鹤山联塑实业发展有限公司 | Section bar trompil processing equipment |
| CN113103353A (en) * | 2021-03-04 | 2021-07-13 | 丰民金属工业股份有限公司 | Punching machine |
-
2014
- 2014-07-28 CN CN201420416945.7U patent/CN204054198U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107415324A (en) * | 2017-08-02 | 2017-12-01 | 温州正博印刷机械有限公司 | The perforating device of paper bag machine |
| CN107297427A (en) * | 2017-08-21 | 2017-10-27 | 贵州航太精密制造有限公司 | A kind of drift for being used to be punched interior six sides |
| CN110919039A (en) * | 2019-11-26 | 2020-03-27 | 鹤山联塑实业发展有限公司 | Section bar trompil processing equipment |
| CN113103353A (en) * | 2021-03-04 | 2021-07-13 | 丰民金属工业股份有限公司 | Punching machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |