CN201676726U - Paper shredding cutter - Google Patents
Paper shredding cutter Download PDFInfo
- Publication number
- CN201676726U CN201676726U CN2009202158264U CN200920215826U CN201676726U CN 201676726 U CN201676726 U CN 201676726U CN 2009202158264 U CN2009202158264 U CN 2009202158264U CN 200920215826 U CN200920215826 U CN 200920215826U CN 201676726 U CN201676726 U CN 201676726U
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- Prior art keywords
- blade
- knife
- point
- cutter shaft
- groove
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- Expired - Lifetime
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Abstract
The utility model discloses a paper shredding cutter comprising a cutter shaft and blades provided thereon. Each blade has two blade monomers and each of the blade monomer is provided with a cutter body, a mounting hole and a knife edge around the cutter body; at least one blade monomer is provided with a set of knife points at the extending part of the blade monomer; each blade monomer is folded into a first cutter body, a second cutter body and a connecting member connecting the two; the set of knife points includes a first knife point and a second knife point in butt joint with each other; the surface of the cutter shaft is provided with a first groove revolving around the cutter shaft and another two second grooves extending along the axial direction of the cutter shaft; the two second grooves divide each of the first grooves into two even parts and the mounting holes of the two blade monomers of a blade are installed into the two parts in radial directions and the connecting members on both sides of the mounting holes are clamped into the second grooves. With high precision in installation and convenience to assemble, the utility model can be produced at low costs.
Description
Technical field
The utility model relates to cutter, relates in particular to a kind of paper shredding cutters.
Background technology
In enterprise office, the paper that much was used and cancelled owing to the data of putting down in writing above is a corporate secret, paper need be carried out pulverization process in order to prevent the data that other people obtain on the file to be put down in writing, thereby shredder arises at the historic moment.Traditional shredder generally comprises two cutter shafts and is fixed on some to blade for shredding paper on the cutter shaft.During shredded paper, drive a series of gears by motor and transfer out than the slow-speed of revolution, to cutter shaft two cutter shafts rotated than high pulling torque, when paper passes between the cutter shaft of two rotations, two cutter shafts extruding paper, thus waste paper is cut into thin paper slip or particle.
At present, blade for shredding paper is to be fixed on the knife pivot of paper crusher by installing hole.The installing hole of this blade for shredding paper is generally polygon hole or D shape hole, the cross sectional shape that the blade for shredding paper place is installed on the cutter shaft correspondingly is polygon or D shape, by the cooperating and be installed in spacer ring between two adjacent blade for shredding paper of installing hole and cutter shaft surface, thereby blade for shredding paper is fixed on the cutter shaft.For the point of a knife of realizing blade for shredding paper staggers dispersed arrangement on the whole circumference of cutter shaft, during installation, the position of tool tip of each group blade for shredding paper is different with respect to the center angle of polygonal installing hole.But,, when assembling, need classification to divide preface to install, thereby reduced packaging efficiency because blade for shredding paper is of a great variety.In addition because when installing, also need be between adjacent two blade for shredding paper the clipping room spacer ring, thereby increased the production cost and the mounting hardness of shredder.
Another assemble method commonly used is to offer groove on cutter shaft, sets the position projection in blade for shredding paper installing hole epirelief.The engaging and be installed in spacer ring between two adjacent blade for shredding paper of groove on locating convex block by blade for shredding paper and the cutter shaft, thus blade for shredding paper is fixed on the cutter shaft.Yet, owing to need in the installing hole of blade for shredding paper, process locating convex block, thereby make the technology more complicated of processing blade for shredding paper, and increased shredder manufacturing cost, reduced the production efficiency of shredder.In addition because when installing, also need be between adjacent two blade for shredding paper the clipping room spacer ring, thereby increased the production cost and the mounting hardness of shredder.
The utility model content
The purpose of this utility model is to provide a kind of paper shredding cutters, and the processing technology of described paper shredding cutters is simple, easy to assembly and production cost is low.
To achieve these goals, the utility model provides a kind of paper shredding cutters, comprise cutter shaft and arrange the blade that is installed on the described cutter shaft at certain intervals, each described blade comprises two blade monomers, each described blade monomer has blade, be located at the installing hole at described blade center and the edge of a knife that is positioned at described blade periphery, wherein, at least one described blade monomer is extended with the point of a knife group along its edge of a knife, the described blade of each described blade monomer is to folded first blade that forms, second blade and the connecting portion that connects described first blade and described second blade, each described point of a knife group comprises first point of a knife and second point of a knife that lays respectively at described first blade and described second blade, and described first point of a knife and described second point of a knife overlap, the surface of described cutter shaft offers several spaced first groove and two second grooves that extend along the axial direction of described cutter shaft around cutter shaft, article two, described second groove is divided each described first groove equally and is two parts, in two parts of corresponding described first groove of radially packing into, the described connecting portion correspondence of its installing hole both sides snaps in described second groove installing hole of two blade monomers of each described blade respectively.
Preferably, described first groove on the described cutter shaft is a cannelure, and described second groove is a curved groove.Because described second groove is curved groove, thereby described blade monomer can be installed on the described cutter shaft along the axial curved shape of cutter shaft, thereby makes that synchronization has only a point of a knife group to contact with paper, has disperseed cut-out paper required torque when the cutting paper.
Preferably, described first point of a knife and described first blade are positioned at same plane, and described second point of a knife is overlapped on the described first point of a knife top.
Preferably, described second point of a knife comprises the first disconnected paper portion and bends the second disconnected paper portion of extending from the described first disconnected paper portion end to described first point of a knife that the described second disconnected paper portion is overlapped on the described first point of a knife top.
Preferably, the described first disconnected paper portion is positioned at same plane and parallel with described first point of a knife with described second blade.
Compared with prior art, on the one hand, because the surface of the cutter shaft of the utility model paper shredding cutters only offers around first groove of cutter shaft and two second grooves that extend along the cutter shaft axial direction, and the connecting portion of the blade monomer of the utility model paper shredding cutters is bent to form by the blade monomer, during assembling, only need connecting portion and installing hole are snapped in respectively in second groove and first groove, the blade monomer can be installed on the cutter shaft, thereby need not the blade monomer or cutter shaft carries out unnecessary processing, thereby make the simple in structure of the utility model paper shredding cutters, easy to assembly and production cost is low.On the other hand, because first point of a knife and second point of a knife of the utility model paper shredding cutters are positioned on the same blade monomer, in case first point of a knife and second point of a knife overlap, the blade monomer is being installed in the process of cutter shaft, the relative position of first point of a knife and second point of a knife can not change, thereby hollow blade for shredding paper of the present utility model does not have cumulative limit, assembly precision height when installing.Again on the one hand, because blade for shredding paper of the present utility model does not need the clipping room spacer ring that adjacent two blade for shredding paper are separated when mounted, thereby not only saved the production cost of paper shredding cutters but also simplified the installation process that blade for shredding paper is installed.
By following description also in conjunction with the accompanying drawings, it is more clear that the utility model will become, and these accompanying drawings are used to explain embodiment of the present utility model.
Description of drawings
Fig. 1 is the stereogram of an embodiment of the utility model paper shredding cutters.
Fig. 2 is the stereogram of the cutter shaft of paper shredding cutters shown in Figure 1.
Fig. 3 is a schematic diagram that the blade monomer is connected with cutter shaft of the utility model paper shredding cutters.
Fig. 4 is an A partial enlarged drawing partly shown in Figure 3.
The specific embodiment
With reference now to accompanying drawing, describe embodiment of the present utility model, the similar elements label is represented similar elements in the accompanying drawing.
With reference to figure 1 and Fig. 2, paper shredding cutters of the present utility model comprises that cutter shaft 10 and several arrange the blade 20 that is installed on the described cutter shaft 10 with same intervals, and each described blade 20 comprises two blade monomers 21 and 22.The surface of described cutter shaft 10 offers several spaced first groove 110 and two second grooves 120 and 121 that extend along the axial direction of described cutter shaft 10 around described cutter shaft 10.Referring to Fig. 2, two described second grooves 120 and 121 are divided described first groove 110 equally and are upper groove 111 and 112 two parts of low groove.Preferably, described first groove 110 is a cannelure, and described second groove 120 and 121 is curved groove.
With reference to figure 1 and Fig. 3-4, each described blade monomer 21 comprises circular blade 210, be located at the installing hole 215 at described blade 210 centers, be positioned at the edge of a knife 217 of described blade 210 peripheries and one along the described edge of a knife 217 extended point of a knife groups 216.Described point of a knife group 216 comprises first point of a knife 2161 and second point of a knife 2162, described first point of a knife 2161 of all point of a knife groups 216 and described second point of a knife 2162 are along a diameter symmetry of described blade 210, and described blade 210 is along the connecting portion 213 of this diameter to folding formation first blade 211, second blade 212 and connecting described first blade 211 and described second blade 212.Described first point of a knife 2161 is positioned on described first blade 211 and with described first blade 211 and is positioned at same plane, described second point of a knife 2162 is positioned on described second blade 212, and an end is connected with described second blade 212 and the other end is overlapped on the top of described first point of a knife 2161.And described first point of a knife 2161 is mediated in lap-joint with described second point of a knife 2162 overlap joint backs and is one.Described installing hole 215 forms first installing hole 2151 and second installing hole 2152 along this diameter to poststack, and described first installing hole 2151 is positioned on described first blade 211, and described second installing hole 2152 is positioned on described second blade 212.Described connecting portion 213 is divided into first connecting portion 2131 and second connecting portion 2132 by described installing hole 215, described first connecting portion 2131 and described second connecting portion 2132 are corresponding respectively to be snapped in second groove 120 and 121 of described cutter shaft 10, and described first installing hole 2151 of described blade monomer 21 and described second installing hole 2152 are respectively from the upper groove 111 and low groove 112 of corresponding described first groove 110 of radially packing into.
Preferably, described second point of a knife 2162 comprises the first disconnected paper portion (not shown) and bends the second disconnected paper portion (not shown) of extending from the described first disconnected paper portion end to described first point of a knife 2161 that the described second disconnected paper portion is overlapped on described first point of a knife 2161 tops.Particularly, the described first disconnected paper portion is positioned at same plane and parallel with described first point of a knife 2161 with described second blade 212.
The assemble method of the utility model paper shredding cutters may further comprise the steps:
S001: cutter shaft 10 is provided, the surface of described cutter shaft 10 offers spaced first groove 110 and two second grooves 120 that extend along the axial direction of described cutter shaft 10 and 121, two described second grooves 120 and 121 around described cutter shaft 10 and described first groove 110 is divided equally is upper groove 111 and low groove 112 two parts;
S002: several blades 20 are provided, each described blade 20 comprises two blade monomers 21 and 22, described blade monomer 21 and 22 has circular blade 210, be located at the installing hole 215 at described blade 210 centers, be positioned at the edge of a knife 217 of described blade 210 peripheries and along the described edge of a knife 217 extended point of a knife groups 216, described point of a knife group 216 comprises first point of a knife 2161 and second point of a knife 2162, described first point of a knife 2161 and described second point of a knife 2162 are along a diameter symmetry of described blade 210, described blade 210 forms first blade 211 along this diameter to folding, second blade 212 and the connecting portion 213 that connects described first blade 211 and described second blade 212, described installing hole 215 symmetry bending backs form first installing hole 2151 and second installing hole 2152, described connecting portion 213 is divided into first connecting portion 2131 and second connecting portion 2132 by described installing hole 215, described first point of a knife 2161 and described second point of a knife 2162 lay respectively on described first blade 211 and described second blade 212, and described second point of a knife 2162 is overlapped on described first point of a knife 2161 tops;
S003: first installing hole 2151 of described blade monomer 21 and second installing hole 2152 from the upper groove 111 of described first groove 110 of radially packing into, and are snapped in described first connecting portion 2131 and described second connecting portion 2132 respectively in second groove 120 and 121 of described cutter shaft 10;
S004: the installing hole of described blade monomer 22 from the low groove 112 of described first groove of radially packing into, and is also snapped in the connecting portion of the installing hole both sides of described blade monomer 22 in described second groove 120 and 121, thereby align with described blade monomer 21;
S005: successively several described blades 20 are assemblied on the described cutter shaft 10 by the same way, thereby finish the assembling of the utility model paper shredding cutters.
Understandably, on the one hand, because the surface of the cutter shaft 10 of the utility model paper shredding cutters only offers around first groove 110 of cutter shaft and two second grooves 120 and 121 that extend along cutter shaft 10 axial directions, and the blade monomer 21 of the utility model paper shredding cutters or 22 connecting portion 213 are bent to form by blade monomer 21 or 22, during assembling, only need connecting portion 213 and installing hole 215 are snapped in respectively in second groove 120 and 121 and first groove 110, blade monomer 21 or 22 can be installed on the cutter shaft 10, thereby need not blade monomer 21 232 or cutter shaft 10 carry out unnecessary processing, thereby make the simple in structure of the utility model paper shredding cutters, easy to assembly and production cost is low.On the other hand, because first point of a knife 2161 and second point of a knife 2162 of the utility model paper shredding cutters are positioned on same blade monomer 21 or 22, in case first point of a knife 2161 and second point of a knife 2162 overlap, blade monomer 21 or 22 is being installed in the process of cutter shaft 10, the relative position of first point of a knife 2161 and second point of a knife 2162 can not change, thereby hollow blade for shredding paper of the present utility model does not have cumulative limit, assembly precision height when installing.Again on the one hand, because blade for shredding paper of the present utility model does not need the clipping room spacer ring that adjacent two blade for shredding paper are separated when mounted, thereby not only saved the production cost of paper shredding cutters but also simplified the installation process that blade for shredding paper is installed.
Abovely the utility model is described, but the utility model is not limited to the embodiment of above announcement, and should contains various modification, equivalent combinations of carrying out according to essence of the present utility model in conjunction with most preferred embodiment.
Claims (5)
1. paper shredding cutters, comprise cutter shaft and arrange the blade that is installed on the described cutter shaft at certain intervals, each described blade comprises two blade monomers, each described blade monomer has blade, be located at the installing hole at described blade center and the edge of a knife that is positioned at described blade periphery, it is characterized in that, at least one described blade monomer is extended with the point of a knife group along its edge of a knife, the described blade of each described blade monomer is to folded first blade that forms, second blade and the connecting portion that connects described first blade and described second blade, each described point of a knife group comprises first point of a knife and second point of a knife that lays respectively at described first blade and described second blade, and described first point of a knife and described second point of a knife overlap, the surface of described cutter shaft offers several spaced first groove and two second grooves that extend along the axial direction of described cutter shaft around cutter shaft, article two, described second groove is divided each described first groove equally and is two parts, in two parts of corresponding described first groove of radially packing into, the described connecting portion correspondence of its installing hole both sides snaps in described second groove installing hole of two blade monomers of each described blade respectively.
2. paper shredding cutters as claimed in claim 1 is characterized in that, described first groove on the described cutter shaft is a cannelure, and described second groove is a curved groove.
3. paper shredding cutters as claimed in claim 1 is characterized in that, described first point of a knife and described first blade are positioned at same plane, and described second point of a knife is overlapped on the described first point of a knife top.
4. paper shredding cutters as claimed in claim 3, it is characterized in that, described second point of a knife comprises the first disconnected paper portion and from the second disconnected paper portion of the described first disconnected paper portion end to described first point of a knife bending extension, the described second disconnected paper portion is overlapped on the described first point of a knife top.
5. paper shredding cutters as claimed in claim 4 is characterized in that, the described first disconnected paper portion is positioned at same plane and parallel with described first point of a knife with described second blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202158264U CN201676726U (en) | 2009-12-31 | 2009-12-31 | Paper shredding cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202158264U CN201676726U (en) | 2009-12-31 | 2009-12-31 | Paper shredding cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201676726U true CN201676726U (en) | 2010-12-22 |
Family
ID=43341789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202158264U Expired - Lifetime CN201676726U (en) | 2009-12-31 | 2009-12-31 | Paper shredding cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201676726U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745452B (en) * | 2009-12-31 | 2011-08-03 | 东莞精锐电器五金有限公司 | Shredding cutter and assembly method thereof |
| CN105772183A (en) * | 2016-05-20 | 2016-07-20 | 徐罗斌 | Card smashing machine |
| CN105772182A (en) * | 2016-05-20 | 2016-07-20 | 徐罗斌 | Space-ring-free overall knife assembly used for chipper and chipper with assembly |
| CN105797825A (en) * | 2016-05-20 | 2016-07-27 | 徐罗斌 | Hidden type whole knife assembly for card breaking machine and card breaking machine with assembly |
| CN106914324A (en) * | 2017-04-17 | 2017-07-04 | 广东隽诺环保科技股份有限公司 | The knife roller structure of cyclopentane gas detector |
-
2009
- 2009-12-31 CN CN2009202158264U patent/CN201676726U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101745452B (en) * | 2009-12-31 | 2011-08-03 | 东莞精锐电器五金有限公司 | Shredding cutter and assembly method thereof |
| CN105772183A (en) * | 2016-05-20 | 2016-07-20 | 徐罗斌 | Card smashing machine |
| CN105772182A (en) * | 2016-05-20 | 2016-07-20 | 徐罗斌 | Space-ring-free overall knife assembly used for chipper and chipper with assembly |
| CN105797825A (en) * | 2016-05-20 | 2016-07-27 | 徐罗斌 | Hidden type whole knife assembly for card breaking machine and card breaking machine with assembly |
| CN105772183B (en) * | 2016-05-20 | 2017-12-29 | 徐罗斌 | A kind of broken card machine |
| CN105797825B (en) * | 2016-05-20 | 2018-01-26 | 常州川刃办公设备有限公司 | The flaker of flaker concealed overall knife assembly and the application component |
| 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 |
| CN106914324A (en) * | 2017-04-17 | 2017-07-04 | 广东隽诺环保科技股份有限公司 | The knife roller structure of cyclopentane gas detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20101222 Effective date of abandoning: 20091231 |