CN1431064A - Razor blade for shredding paper and its molding technique - Google Patents
Razor blade for shredding paper and its molding technique Download PDFInfo
- Publication number
- CN1431064A CN1431064A CN 03115518 CN03115518A CN1431064A CN 1431064 A CN1431064 A CN 1431064A CN 03115518 CN03115518 CN 03115518 CN 03115518 A CN03115518 A CN 03115518A CN 1431064 A CN1431064 A CN 1431064A
- Authority
- CN
- China
- Prior art keywords
- blade
- paper
- shredding paper
- corner cut
- shredding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
A paper-breaking blade is made up through punching by upper and lower dies to form an acute angle on periphery of blade, and second punching to form cutting edge. Its advantages are high sharpness of cutting edge and simple technology.
Description
Technical field
The present invention relates to a kind of shredder parts and processing technology thereof, particularly a kind of blade for shredding paper and moulding process thereof.
Background technology
Existing shredder, no matter be electronic or manual, all be to utilize its blade for shredding paper that waste paper is cut to elongate strip, usually, the roughly rounded or bowl-type of blade for shredding paper, in groups string solid two be arranged in parallel and relatively turnable cutter shaft on, when cutter shaft rotates, under the extruding of blade, be cut to thin paper slip through the paper between the set of blades, the shredded paper ability of shredder is generally weighed with maximum paper numbers that set of blades once can be cut, because the user always expects that its paper to be pulverized is to be pulverized in the minimum time, therefore, to make it that the shredded paper ability improves be the problem that shredder manufacturer need solve to structure how to improve the blade for shredding paper group always.For this reason, the patent No. is that 98219980.5 Chinese utility model patent " the paper shredding blade module that is used for shredder " (notification number is CN2366176Y) has disclosed the blade for shredding paper that a kind of its periphery has annular corner cut (50), make it under equal situation, once can cut more paper, the noise that is produced in the time of cut paper can also being reduced simultaneously.This patent is mentioned in its specification, and the corner cut of described paper shredding blade only need be revised the diel of paper shredding blade, moulding together when the punching press paper shredding blade.And practice shows, paper shredding blade with corner cut is difficult to one time punching molded, even one time punching molded success, its angle is also bigger, and according to the introduction of this patent, the width of this corner cut is 1 to 4 times of blade average thickness, also be that its tangent value is between 1～1/4, also promptly this corner cut and in fact, is to be difficult to go out near 14 ° corner cut by one time punching molded between 14 °～45 °.On the other hand, no matter be traditional bowl-type blade for shredding paper, or the above-mentioned blade for shredding paper that has corner cut, the peripheral position at its blade place is all in the same plane, though this can guarantee that blade for shredding paper is perpendicular with cutter shaft after installation, strengthening its cut paper ability, but cut paper also is sandwiched between the adjacent blade because of being attached to blade side easily, thereby increases the load of motor or manual strength.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of moulding process with the corner cut blade for shredding paper at above-mentioned prior art present situation, and it is realized easily, the success rate height, and can produce at cut paper blade periphery and have more low-angle corner cut.
Another technical problem to be solved by this invention is to provide a kind of periphery more sharp blade for shredding paper at above-mentioned prior art present situation.
Another technical problem to be solved by this invention is to provide a kind of blade for shredding paper that is difficult for holding paper at above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: the moulding process of band corner cut blade for shredding paper may further comprise the steps: utilize stretch forming process earlier, under stamping die effect up and down, with blade facets tapering bar stock cutting by punching, make the blade periphery stamp out an acute angle, utilizing up and down simultaneously, the gap between the stamping die makes the blade periphery produce burr, and then the sizing die blade is carried out the punching press shaping second time about utilizing, the edge of a knife that makes its peripheral burr integer become to have corner cut.
According to above-mentioned moulding process, not only blade for shredding paper can be made and have corner cut α same as the prior art, also can form another more low-angle corner cut β in the outer most edge of blade.
And according to above-mentioned moulding process, also blade for shredding paper can be made and have such architectural feature: promptly form a skew angle θ between the formed plane of its circumferential outer edge and its peripheral side, the existence of this skew angle θ can avoid cut paper to be attached to the side of blade effectively, thereby avoids paper to be sandwiched between the adjacent blade.
Compared with prior art, the invention provides a kind of moulding process of making band corner cut blade for shredding paper, make band corner cut blade for shredding paper be able to from the trends of design product, and the present invention has utilized original processing mold and equipment dexterously, need not to do new production input, thereby do not increase manufacturing cost yet, and the blade for shredding paper that utilizes moulding process of the present invention to produce to have more low-angle corner cut β and have skew angle θ, make blade more sharp, and by avoiding paper to be sandwiched between the adjacent blade, further reduce the power requirement (electrodynamic type) of motor or to user's requirement (hand), thereby reduce manufacturing cost (electrodynamic type) or convenient use (hand).
Description of drawings
Fig. 1 is the structural representation of inventive embodiments after the moulding first time.
Fig. 2 is the partial enlarged drawing of Fig. 1.
The structural representation that Fig. 3 is the embodiment of the invention when second time moulding.
Fig. 4 is the finished product structural representation of the embodiment of the invention after the moulding second time.
Fig. 5 is the partial enlarged drawing of Fig. 4.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 5, be one embodiment of the present of invention, the moulding process of band corner cut blade for shredding paper may further comprise the steps:
1. utilize stretch forming process, under stamping die 2 acts on up and down, with blade 1 sword face tapering bar stock cutting by punching, make blade 1 peripheral punching press in an acute angle, the gap about utilizing simultaneously between the stamping die 2 makes the blade periphery produce burr, referring to Fig. 1, Fig. 2;
2. sizing die 3 blade 1 are carried out the punching press shaping second time again about utilizing, and make its peripheral burr integer become to have the edge of a knife of corner cut α, β, and referring to Fig. 3, Fig. 4, the corner cut β littler than corner cut α makes blade more sharp.
And according to above-mentioned moulding process, the blade for shredding paper 1 of institute's moulding also has such architectural feature: promptly form a skew angle θ between the formed plane of its circumferential outer edge and its peripheral side, referring to Fig. 5; The existence of this skew angle θ can avoid cut paper to be attached to the side of blade 1 effectively, thereby avoids paper to be sandwiched between the adjacent blade.
Claims (6)
1, a kind of moulding process with the corner cut blade for shredding paper, it is characterized in that may further comprise the steps: utilize stretch forming process earlier, under stamping die effect up and down, with blade facets tapering bar stock cutting by punching, make the blade periphery stamp out an acute angle, the utilization simultaneously gap between the stamping die up and down makes the blade periphery produce burr, and then the sizing die blade is carried out the punching press shaping second time about utilizing, the edge of a knife that makes its peripheral burr integer become to have corner cut.
2, the blade for shredding paper that processes of a kind of moulding process according to claim 1 is characterized in that its peripheral position not only has corner cut α same as the prior art, also has another more low-angle corner cut β in its outer most edge.
3, the blade for shredding paper that processes of moulding process according to claim 2 is characterized in that having a skew angle θ between the formed plane of its circumferential outer edge and its peripheral side.
4, blade for shredding paper according to claim 3 is characterized in that described skew angle θ is 1～15 °.
5, the blade for shredding paper that processes of moulding process according to claim 1 is characterized in that having a skew angle θ between the formed plane of its circumferential outer edge and its peripheral side.
6, blade for shredding paper according to claim 5 is characterized in that described skew angle θ is 1～15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03115518 CN1225312C (en) | 2003-02-25 | 2003-02-25 | Razor blade for shredding paper and its molding technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03115518 CN1225312C (en) | 2003-02-25 | 2003-02-25 | Razor blade for shredding paper and its molding technique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1431064A true CN1431064A (en) | 2003-07-23 |
| CN1225312C CN1225312C (en) | 2005-11-02 |
Family
ID=4790658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03115518 Expired - Fee Related CN1225312C (en) | 2003-02-25 | 2003-02-25 | Razor blade for shredding paper and its molding technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1225312C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102371475A (en) * | 2011-10-27 | 2012-03-14 | 陆学中 | Technology for machining paper-shredding cutter blade |
| CN101716719B (en) * | 2010-01-12 | 2012-06-13 | 东莞精锐电器五金有限公司 | Integral paper shredding blade and processing method thereof |
| CN102764685A (en) * | 2012-08-03 | 2012-11-07 | 宁波为创办公设备有限公司 | Paper cutting blade of paper shredder and method for manufacturing same |
| CN102886439A (en) * | 2012-09-28 | 2013-01-23 | 蚌埠市昊业滤清器有限公司 | Modifying mould for shell after stretch forming |
| CN103386596A (en) * | 2012-05-11 | 2013-11-13 | 陆学中 | Paper shredding blade machining method |
| CN106694160A (en) * | 2017-01-12 | 2017-05-24 | 常州市武进蓝天电器厂 | Paper shredder double-edge cutting blade and machining process thereof |
-
2003
- 2003-02-25 CN CN 03115518 patent/CN1225312C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101716719B (en) * | 2010-01-12 | 2012-06-13 | 东莞精锐电器五金有限公司 | Integral paper shredding blade and processing method thereof |
| CN102371475A (en) * | 2011-10-27 | 2012-03-14 | 陆学中 | Technology for machining paper-shredding cutter blade |
| CN102371475B (en) * | 2011-10-27 | 2014-04-16 | 陆学中 | Technology for machining paper-shredding cutter blade |
| CN103386596A (en) * | 2012-05-11 | 2013-11-13 | 陆学中 | Paper shredding blade machining method |
| CN103386596B (en) * | 2012-05-11 | 2016-06-29 | 陆学中 | Blade for shredding paper processing method |
| CN102764685A (en) * | 2012-08-03 | 2012-11-07 | 宁波为创办公设备有限公司 | Paper cutting blade of paper shredder and method for manufacturing same |
| WO2014019301A1 (en) * | 2012-08-03 | 2014-02-06 | 宁波为创办公设备有限公司 | Paper cutter of paper shredder and method of fabricating same |
| CN102764685B (en) * | 2012-08-03 | 2014-08-06 | 宁波为创办公设备有限公司 | Method for manufacturing paper cutting blade of paper shredder |
| CN102886439A (en) * | 2012-09-28 | 2013-01-23 | 蚌埠市昊业滤清器有限公司 | Modifying mould for shell after stretch forming |
| CN102886439B (en) * | 2012-09-28 | 2014-09-17 | 蚌埠市昊业滤清器有限公司 | Modifying mould for shell after stretch forming |
| CN106694160A (en) * | 2017-01-12 | 2017-05-24 | 常州市武进蓝天电器厂 | Paper shredder double-edge cutting blade and machining process thereof |
| CN106694160B (en) * | 2017-01-12 | 2019-02-15 | 常州市武进蓝天电器厂 | A kind of shredder double blade cutting edge and its processing technology |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1225312C (en) | 2005-11-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211757970U (en) | Rolling circle upgrades forming die | |
| CN1225312C (en) | Razor blade for shredding paper and its molding technique | |
| CN103568034B (en) | A kind of comb teeth-shaped blade structure and processing method | |
| CN201387986Y (en) | Connector terminal processing die | |
| CN201329302Y (en) | Novel thin blade with no step at cutter point used for shredder and blade group thereof | |
| CN106003199B (en) | A kind of many knife plate dividing machines for preventing pcb board from deforming | |
| CN102371475B (en) | Technology for machining paper-shredding cutter blade | |
| CN201095140Y (en) | Punching cutter | |
| CN206567388U (en) | Punching removes the mould of flash removed simultaneously | |
| CN103386433B (en) | Blade for shredding paper punch forming processing method | |
| CN103978100A (en) | Hallstand punch forming device | |
| CN213104016U (en) | Rotary cutting die suitable for high punching height | |
| CN201872373U (en) | Convenient stamping die with character die | |
| CN201415237Y (en) | Stator lamination punch die module | |
| CN103521640B (en) | Blade for shredding paper punch forming processing method | |
| CN202726945U (en) | Comb-tooth-shaped blade structure | |
| CN2714151Y (en) | Multi-blades hammer sheet with trapeziform corners for pulverizer | |
| CN2366176Y (en) | Knife set of disintegrating paper machine | |
| CN207138650U (en) | A kind of high euphotic belt shearing progressive die | |
| CN211891313U (en) | Ceramic grinding core production die for grinding | |
| CN200998686Y (en) | Thin blade for kneading machine and blade set | |
| CN2407930Y (en) | Module cutting type cutting angle slot cutter for paper box process | |
| CN201333419Y (en) | Polygonal blade for paper shredder | |
| CN207479294U (en) | A kind of pressure mark-proof stripper of rotary_turret stamping machine | |
| CN216501769U (en) | Improve punching press deburring and fall iron fillings mould structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20051102 Termination date: 20150225 |
|
| EXPY | Termination of patent right or utility model |