CN105498921A - Paper shredder cutter shaft without spacing washer - Google Patents
Paper shredder cutter shaft without spacing washer Download PDFInfo
- Publication number
- CN105498921A CN105498921A CN201510975084.5A CN201510975084A CN105498921A CN 105498921 A CN105498921 A CN 105498921A CN 201510975084 A CN201510975084 A CN 201510975084A CN 105498921 A CN105498921 A CN 105498921A
- Authority
- CN
- China
- Prior art keywords
- blade
- blades
- cutter shaft
- cutting edge
- mandrel
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
- B02C18/182—Disc-shaped knives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/0007—Disintegrating by knives or other cutting or tearing members which chop material into fragments specially adapted for disintegrating documents
Abstract
The invention discloses a paper shredder cutter shaft without a spacing washer. The cutter shaft comprises blades (1) and mandrels (2). Projected end keys are arranged on one sides of edge ends of core holes of the blades; end key grooves correspondingly matched with the end keys are formed in the mandrels; two blades with opposite edge ends are laminated to form one blade set; multiple blade sets serially connected to the mandrels and with the end keys embedded in the end key grooves form cutter shafts; two adjacent blade sets are butted by respective end keys to form intervals; when the cutter shafts are applied to an electric paper shredder, the blade sets of two cutter shafts are staggered and embedded in the opposite intervals; and as the service life of the intervals formed by the end keys is longer than the wear life of edges of the blades, the damage waste of the cutter shafts before normal wear of the edges is prevented, and the paper shredder cutter shaft achieves the purpose of prolonging short service life.
Description
Technical field
The present invention relates to a kind of machine cutter, specifically refer to a kind of knife pivot of paper crusher without spacing washer for electric shredder cutting and grinding paper.
Background technology
Electric shredder is a kind of office automation electrical equipment, electric shredder drives the cutter shaft of High Rotation Speed to pulverize cutting paper by motor, the cutter shaft of prior art is made up of on a mandrel the set of blades spaced series of multiple circle, each set of blades is superposed by the blade of the opposing disc of two cutting edge ends and forms, consult Fig. 9 ~ Figure 14, between every two adjacent set of blades, be provided with a spacing washer 01; Electric shredder is provided with two cutter shafts being parallel to each other, relatively rotating, the set of blades of two cutter shafts is embedded in the interval that the other side formed by spacing washer 01 interlacedly, in actual applications, because cutter shaft High Rotation Speed pulverizes cutting paper, spacing washer 01 is extruded by the set of blades that the right and left clamps, wear and rupture, makes set of blades produce axial float on mandrel, causes the blade of the set of blades of two cutter shafts relatively rotated all to damage because mutually colliding scraping; In other words, because the working life of spacing washer 01 is lower than the wear-out life of blade cutting edge, spacing washer 01 wear and rupture, set of blades generation axial float, causes cutter shaft to damage prior to cutting edge normal wear and scraps, thus shorten the service life of cutter shaft; Therefore, there are short problems and shortcomings in service life in prior art.
Summary of the invention
For above-mentioned prior art Problems existing with not enough, the present invention adopts the end key arranging protrusion in the side of the cutting edge end of the core bore of blade, mandrel arranges the end keyway with described end key corresponding matching, superposed by the blade that two cutting edge ends are opposing and form a set of blades, to be connected on mandrel by several and the set of blades that described end key is embedded in described end keyway forms cutter shaft, offseted by respective described end key between two adjacent set of blades and form interval, when being applied in electric shredder, two cutter shafts set of blades is separately embedded in the described interval of the other side interlacedly, working life due to the described interval of described end key formation is greater than the wear-out life of blade cutting edge, cutter shaft is avoided to damage the technical scheme of scrapping prior to cutting edge normal wear, a kind of knife pivot of paper crusher without spacing washer is provided, be intended to that knife pivot of paper crusher is reached and increase the service life short object.
The object of the present invention is achieved like this: a kind of knife pivot of paper crusher without spacing washer, this cutter shaft comprises blade, mandrel, wherein: described blade is the steel components of disc, blade be circumferentially provided with zigzag blade, the cutting edge of described blade is towards a side of blade, and this side is called cutting edge end; The center of blade is provided with circular through hole, and this through hole is called core bore; The described cutting edge end place of described core bore is provided with two symmetries, protrude from the rectangular flange of cutting edge end is vertically called end key;
Described mandrel is the steel components of cylinder rod, the cylinder of mandrel corresponds to described end key and is provided with two symmetries, is called end keyway with the rectangular recess of the axis being parallel of mandrel;
Blade superposition composition set of blades that two cutting edge ends are opposing; Cutter shaft to be connected on mandrel by several and the set of blades that described end key is embedded in described end keyway is formed, and cutter shaft is offseted by respective described end key between two adjacent described set of blades and the spacing formed is called interval.
Operation principle and beneficial effect
During application, two cutter shafts are arranged in electric shredder in parallel to each other, and two cutter shafts described set of blades is separately embedded in the described interval of the other side interlacedly; During work, working life due to the described interval of described end key formation is greater than the wear-out life of blade cutting edge, eliminate the reason that blade collides scraping mutually, avoid cutter shaft and damage the drawback of scrapping prior to cutting edge normal wear, the service life extending knife pivot of paper crusher is short.
Above-mentioned, the present invention adopts the end key arranging protrusion in the side of the cutting edge end of the core bore of blade, mandrel arranges the end keyway with described end key corresponding matching, superposed by the blade that two cutting edge ends are opposing and form a set of blades, to be connected on mandrel by several and the set of blades that described end key is embedded in described end keyway forms cutter shaft, offseted by respective described end key between two adjacent set of blades and form interval, when being applied in electric shredder, two cutter shafts set of blades is separately embedded in the described interval of the other side interlacedly, working life due to the described interval of described end key formation is greater than the wear-out life of blade cutting edge, cutter shaft is avoided to damage the technical scheme of scrapping prior to cutting edge normal wear, overcome prior art and there are short problems and shortcomings in service life, a kind of knife pivot of paper crusher without spacing washer provided, knife pivot of paper crusher is reached increase the service life short object.
Accompanying drawing explanation
Fig. 1 is that the axle of the blade 1 of a kind of knife pivot of paper crusher without spacing washer of the present invention measures intention;
Fig. 2 is that the axle of the set of blades 14 of a kind of knife pivot of paper crusher without spacing washer of the present invention measures intention;
Fig. 3 is the local schematic front view of the mandrel 2 of a kind of knife pivot of paper crusher without spacing washer of the present invention;
Fig. 4 is the cross-sectional schematic of the mandrel 2 of a kind of knife pivot of paper crusher without spacing washer of the present invention;
Fig. 5 is the local schematic front view of a kind of knife pivot of paper crusher without spacing washer of the present invention;
Fig. 6 is that the axle of the mandrel 2 of a kind of knife pivot of paper crusher without spacing washer of the present invention measures intention;
Fig. 7 is the schematic front view of a kind of knife pivot of paper crusher without spacing washer of the present invention;
Fig. 8 is a kind of knife pivot of paper crusher without spacing washer of the present invention, and when being applied to electric shredder, the respective described set of blades 14 of two cutter shafts 3 is embedded in the principle schematic in the described interval 4 of the other side interlacedly;
Fig. 9 is the schematic diagram of the blade of prior art;
Figure 10 is the schematic diagram of the set of blades of prior art;
Figure 11 is the schematic diagram of the spacing washer 01 of prior art;
Figure 12 is the partial schematic diagram of the cutter shaft of prior art;
Figure 13 is the schematic diagram of the mandrel of prior art;
Figure 14 is the schematic diagram of the cutter shaft of prior art.
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but should not be construed as any limitation of the invention.
In figure: blade 1, core bore 11, cutting edge end 12, end key 13, set of blades 14, mandrel 2, end keyway 21, cutter shaft 3, interval 4, spacing washer 01.
Detailed description of the invention
Consult Fig. 1 ~ Fig. 8, a kind of knife pivot of paper crusher without spacing washer of the present invention, this cutter shaft 3 comprises blade 1, mandrel 2, wherein: described blade 1 is the steel components of disc, blade 1 be circumferentially provided with zigzag blade, the cutting edge of described blade is towards a side of blade 1, and this side is called cutting edge end 12; The center of blade 1 is provided with circular through hole, and this through hole is called core bore 11; Described cutting edge end 12 place of described core bore 11 is provided with two symmetries, protrude from the rectangular flange of cutting edge end 12 is vertically called end key 13;
Described mandrel 2 is the steel components of cylinder rod, the cylinder of mandrel 2 corresponds to described end key 13 and is provided with two symmetries, is called holds keyway 21 with the rectangular recess of the axis being parallel of mandrel 2;
The opposing blade 1 of two cutting edge ends 12 superposes composition set of blades 14; Cutter shaft 3 to be connected on mandrel 2 by several and the set of blades 14 that described end key 13 is embedded in described end keyway 21 is formed, and cutter shaft 3 is offseted by respective described end key 13 between two adjacent described set of blades 14 and the spacing formed is called interval 4.
Operation principle and beneficial effect
During application, two cutter shafts 3 are arranged in electric shredder in parallel to each other, and the respective described set of blades 14 of two cutter shafts 3 is embedded in the described interval 4 of the other side interlacedly; During work, working life due to the described interval 4 of described end key 13 formation is greater than the wear-out life of blade 1 cutting edge, eliminate the reason that blade 1 collides scraping mutually, avoid cutter shaft 3 and damage the drawback of scrapping prior to cutting edge normal wear, the service life extending knife pivot of paper crusher is short.
Claims (1)
1. the knife pivot of paper crusher without spacing washer, this cutter shaft (3) comprises blade (1), mandrel (2), it is characterized in that: the steel components that described blade (1) is disc, blade (1) be circumferentially provided with zigzag blade, the cutting edge of described blade is towards a side of blade (1), and this side is called cutting edge end (12); The center of blade (1) is provided with circular through hole, and this through hole is called core bore (11); Described cutting edge end (12) place of described core bore (11) is provided with two symmetries, protrude from the rectangular flange of cutting edge end (12) is vertically called end key (13);
The steel components that described mandrel (2) is cylinder rod, the cylinder of mandrel (2) corresponds to described end key (13) and is provided with two symmetries, is called holds keyway (21) with the rectangular recess of the axis being parallel of mandrel (2);
Blade (1) superposition composition set of blades (14) that two cutting edge ends (12) are opposing; Cutter shaft (3) is connected on the upper and set of blades (14) that described end key (13) is embedded in described end keyway (21) of mandrel (2) by several and forms, and is offseted and the spacing that formed is called interval (4) between upper two the adjacent described set of blades (14) of cutter shaft (3) by respective described end key (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975084.5A CN105498921A (en) | 2015-12-17 | 2015-12-17 | Paper shredder cutter shaft without spacing washer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975084.5A CN105498921A (en) | 2015-12-17 | 2015-12-17 | Paper shredder cutter shaft without spacing washer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105498921A true CN105498921A (en) | 2016-04-20 |
Family
ID=55707454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510975084.5A Pending CN105498921A (en) | 2015-12-17 | 2015-12-17 | Paper shredder cutter shaft without spacing washer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105498921A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772182A (en) * | 2016-05-20 | 2016-07-20 | 徐罗斌 | Space-ring-free overall knife assembly used for chipper and chipper with assembly |
| CN108097410A (en) * | 2016-05-20 | 2018-06-01 | 徐罗斌 | CD, SD card, the broken card machine of circuit board |
| CN108237002A (en) * | 2016-05-20 | 2018-07-03 | 徐罗斌 | Cutter shaft can carry the flaker knife assembly and flaker of the torque of bigger |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4625925A (en) * | 1983-04-12 | 1986-12-02 | Feinwerktechnik Schleicher & Co. | Comminuting apparatus for sheet material or sheet material layers |
| DE19544639A1 (en) * | 1995-11-30 | 1997-06-05 | Ehinger Adolf Eba Maschf | Shredder for sheets or strips carrying information |
| CN2877858Y (en) * | 2005-12-02 | 2007-03-14 | 上海震旦办公设备有限公司 | Cutter structure for paper grinder |
| CN200954457Y (en) * | 2006-05-18 | 2007-10-03 | 深圳惠格浩电子有限公司 | Blade of paper smasher |
| CN104307611A (en) * | 2014-10-13 | 2015-01-28 | 东莞市微然机电科技有限公司 | Blade and blade rod of paper shredder |
| CN205323928U (en) * | 2015-12-17 | 2016-06-22 | 宁波天天文具有限公司 | Shredder cutter shaft of gapless gasket |
-
2015
- 2015-12-17 CN CN201510975084.5A patent/CN105498921A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4625925A (en) * | 1983-04-12 | 1986-12-02 | Feinwerktechnik Schleicher & Co. | Comminuting apparatus for sheet material or sheet material layers |
| DE19544639A1 (en) * | 1995-11-30 | 1997-06-05 | Ehinger Adolf Eba Maschf | Shredder for sheets or strips carrying information |
| CN2877858Y (en) * | 2005-12-02 | 2007-03-14 | 上海震旦办公设备有限公司 | Cutter structure for paper grinder |
| CN200954457Y (en) * | 2006-05-18 | 2007-10-03 | 深圳惠格浩电子有限公司 | Blade of paper smasher |
| CN104307611A (en) * | 2014-10-13 | 2015-01-28 | 东莞市微然机电科技有限公司 | Blade and blade rod of paper shredder |
| CN205323928U (en) * | 2015-12-17 | 2016-06-22 | 宁波天天文具有限公司 | Shredder cutter shaft of gapless gasket |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105772182A (en) * | 2016-05-20 | 2016-07-20 | 徐罗斌 | Space-ring-free overall knife assembly used for chipper and chipper with assembly |
| CN105772182B (en) * | 2016-05-20 | 2018-02-27 | 常州川刃办公设备有限公司 | A kind of flaker of flaker cageless overall knife assembly and the application component |
| CN108097411A (en) * | 2016-05-20 | 2018-06-01 | 徐罗斌 | Flaker and its method of work |
| CN108097410A (en) * | 2016-05-20 | 2018-06-01 | 徐罗斌 | CD, SD card, the broken card machine of circuit board |
| CN108237002A (en) * | 2016-05-20 | 2018-07-03 | 徐罗斌 | Cutter shaft can carry the flaker knife assembly and flaker of the torque of bigger |
| CN108325659A (en) * | 2016-05-20 | 2018-07-27 | 徐罗斌 | Flaker knife assembly and flaker |
| CN108325658A (en) * | 2016-05-20 | 2018-07-27 | 徐罗斌 | The flaker knife assembly and flaker cut for SD card, circuit board |
| CN108339640A (en) * | 2016-05-20 | 2018-07-31 | 徐罗斌 | Flaker knife assembly and flaker |
| CN108339631A (en) * | 2016-05-20 | 2018-07-31 | 徐罗斌 | Bank card, the broken card machine of CD |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |
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| RJ01 | Rejection of invention patent application after publication |