CN201841041U

CN201841041U - Shredder

Info

Publication number: CN201841041U
Application number: CN2010205934927U
Authority: CN
Inventors: 王恬恬; 魏振家; 赵龙; 杨勇
Original assignee: BEIJING HSD INFORMATION SECURITY TECHNOLOGY Co Ltd
Current assignee: BEIJING HSD INFORMATION SECURITY TECHNOLOGY Co Ltd
Priority date: 2010-11-02
Filing date: 2010-11-02
Publication date: 2011-05-25
Anticipated expiration: 2020-11-02

Abstract

The utility model discloses a shredder, which comprises a shell. A paper inlet and a paper outlet are respectively arranged at the top end and the bottom end of the shell, a paper guide mechanism, a transverse paper cutting mechanism and a vertical paper cutting mechanism are arranged in the shell and all connected with a transmission mechanism, wherein the paper guide mechanism is used for rolling and transporting paper; the transverse paper cutting mechanism is used for cutting paper into transverse long strips and arranged below the paper guide mechanism; the vertical paper cutting mechanism is used for cutting the transverse long strips into particles and arranged below the transverse paper cutting mechanism; the paper inlet corresponds to the paper guide mechanism; and the paper outlet corresponds to the vertical paper cutting mechanism. The shredder can shred paper into particles rapidly, can shred and destroy paper effectively, and can be operated conveniently and simply.

Description

Shredder

Technical field

The utility model relates to a kind of disintegrating mechanism, refers to a kind of shredder especially.

Background technology

According to the BMB21-2007 of National Administration for the Protection of State Secrets " the carrier destruction and the information that relate to state secret are eliminated safe and secret requirement " regulation, the shredder that concerning security matters unit of country uses need reach one-level and destroy standard, that is: all paper pulverized particles must be less than 1mm * 2mm.

Existing in the market shredder mainly contains disposable pulverizing type and pulverizes type twice.The shredder of disposable pulverizing type is ground into larger particles by one group of cutter with paper.The shredder of pulverizing type for twice adopts double-layer structure, and a pair of bar shaped cutter of ground floor cuts into vertical bar paper with paper, and the circular knife by the second layer cuts into particle again with vertical bar paper then.Though this shredder of two types can both reach the purpose of pulverizing paper, the efficient that they pulverize paper is not high, can't reach one-level shredder standard, and the paper particle of promptly pulverizing out can't all be less than the standard of 1mm * 2mm.The paper particle that the shredder of this disposable pulverizing type is pulverized out is bigger, generally greater than 1mm * 2mm, can not satisfy one-level shredder standard.There is defective in the shredder of pulverizing type for this twice because of the syndeton between its bar shaped cutter and the circular knife, make the front major part of paper can be ground into paper particle less than 1mm * 2mm, but the last approximately part of 15mm left and right sides length can not be cut, but form 2mm * 15mm strip particle, exist and pulverize the dead angle, therefore, the shredder of this twice pulverizing type can't reach one-level shredder standard, does not satisfy National Administration for the Protection of State Secrets's one-level and destroys standard-required.That is to say, up to now, also there is not a shredder can reach country-level destruction standard on the market, even being known as, some brand shredder can be ground into 1mm * 1mm particle, but owing to be doped with the very big particle of many volumes in the particle that they are pulverized, therefore, do not meet the destruction standard of one-level shredder yet.

The utility model content

The purpose of this utility model is to provide a kind of shredder, and this shredder can be ground into graininess with paper quickly and efficiently.

To achieve these goals, the utility model has adopted following technical scheme:

A kind of shredder, it is characterized in that: it comprises shell, the top of this shell, bottom offer paper inlet, exit slot respectively, be equipped with in this shell and be used to be involved in, the paper guide of conveyance of sheets, be used for that paper cut into laterally rectangular horizontal cut paper mechanism and be used for the horizontal rectangular vertical cut paper mechanism that cuts into particle, wherein: this horizontal cut paper mechanism is positioned at the below of this paper guide, and this vertical cut paper mechanism is positioned at the below of this horizontal cut paper mechanism; This paper guide, horizontal cut paper mechanism and vertical cut paper mechanism all are connected with transmission mechanism; This paper inlet is to should the paper guide setting, and this exit slot is provided with vertical cut paper mechanism.

The utility model has the advantages that:

The utility model shredder can be ground into granule fast with paper, can effectively pulverize, destroy paper, and the utility model shredder cost is low, and the practicality height is simple, convenient.

Between the sharp shaped material that satisfies each paper-sheets rolling wheel, be staggeredly set and look the spacing at two adjacent sharp shaped material tips less than 1 millimeter from the axial direction of rubbing the paper turning cylinder with the hands, paper-sheets rolling wheel and the distance hold tangent position at a distance of between circular knife and dead knife, position of pricking bottom that enters the paper of paper guide are set at smaller or equal to 1 millimeter, the paper feeding linear velocity that paper is carried to horizontal paper cutter structure from paper guide is set at when being set at all less than 2 millimeters these four conditions less than the shear line speed of circular knife cutting edge and the radially blade spacing on the first bar shaped cutter and the radially blade spacing on the second bar shaped cutter, the paper particle that the utility model shredder is pulverized out is less than 1mm * 2mm, paper is pulverized comprehensively, the uniform particles of pulverizing, do not pulverize dead angle (promptly do not exist and do not have pulverized large-volume particulate), whole particles of pulverizing have all reached the standard of one-level shredded paper particle, have satisfied paper and have pulverized the security requirements that destruction should reach.

Description of drawings

Fig. 1 looks from the front, the schematic perspective view of the utility model shredder internal structure;

Fig. 2 looks from Fig. 1 rightabout, the schematic perspective view of the utility model shredder internal structure;

Fig. 3 is the utility model shredder operation principle schematic diagram;

Fig. 4 is the structural relation schematic perspective view (paper that do not draw imports plate) between paper-rubbing mechanism, paper blocking mechanism and dead knife in the utility model shredder;

Fig. 5 is the structural relation cross-sectional schematic (paper that drawn imports plate) between paper-rubbing mechanism, paper blocking mechanism and dead knife in the utility model

Fig. 6 is the annexation schematic diagram between the first bar shaped cutter and the second bar shaped cutter;

Fig. 7 is that paper is by the crushing process schematic diagram.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is described in detail.

Extremely shown in Figure 6 as Fig. 1, the utility model shredder comprises shell 80, the top of this shell 80, the bottom offers paper inlet 81 respectively, exit slot 82, be equipped with in this shell 80 and be used to be involved in, the paper guide of conveyance of sheets 70, be used for that paper 70 cut into laterally rectangular 71 horizontal cut paper mechanism and be used for horizontal rectangular 71 vertical cut paper mechanisms that cut into particle 72, this horizontal cut paper mechanism is positioned at the below of this paper guide, this vertical cut paper mechanism is positioned at the below of this horizontal cut paper mechanism, this paper guide, laterally cut paper mechanism all is connected with transmission mechanism 50 with vertical cut paper mechanism, 81 pairs of this paper inlets should the paper guide setting, and 82 pairs of this exit slots vertically cut paper mechanism are provided with.During actual enforcement, this paper guide, laterally cut paper mechanism and vertical cut paper mechanism are fixed on the

side plate

61 and 62 in the shell 80.

To shown in Figure 5, paper guide comprises paper-rubbing mechanism and paper blocking mechanism, this paper blocking mechanism and the corresponding setting of this paper-rubbing mechanism as Fig. 3.

As Fig. 3 to Fig. 5, this paper-rubbing mechanism comprises a plurality of grates 112 (in practice, at least two grates 112 are set, grate 112 is distributed on the locating shaft 111), and these a plurality of grates 112 are fixed on the inside of shell 80 by locating shaft 111; Each grate 112 offers a groove 117, is provided with a paper-sheets rolling wheel 114 in this groove 117, has a plurality of sharp shaped materials 115 on this paper-sheets rolling wheel 114, and sharp shaped material 115 can be pointed tooth, pointed projection etc., and these a plurality of sharp shaped materials 115 are exposed to outside this grate 112; All these paper-sheets rolling wheels 114 are installed in one and rub with the hands on the paper turning cylinder 113, and this stranding paper turning cylinder 113 is connected with transmission mechanism 50, and the rotation of this stranding paper turning cylinder 113 drives all these paper-sheets rolling wheels 114 and rotates.

In order to reduce cost of manufacture, can be set to following structure (not shown) by paper-rubbing mechanism: this paper-rubbing mechanism comprises a plurality of grates, a plurality of paper-sheets rolling wheel; The upper end of these a plurality of grates is fixed on the inside of shell by locating shaft, and the lower end of these a plurality of grates and this a plurality of paper-sheets rolling wheels are crisscross arranged and rub with the hands on the paper turning cylinder at one, and this stranding paper turning cylinder is connected with transmission mechanism; The outward flange of this paper-sheets rolling wheel is provided with a plurality of sharp shaped materials, and when this sharp shaped material turned to the position relative with this grade mechanism of paper, this sharp shaped material was exposed to the outside of this grate; The rotation of this stranding paper turning cylinder drives that all this paper-sheets rolling wheels rotate and grate keeps motionless.

As Fig. 3 to Fig. 5, this paper blocking mechanism comprises pressing board 12, corresponding each this paper-sheets rolling wheel 114 on this pressing board 12 and offer a storage tank 121; When each sharp shaped material 115 of paper-sheets rolling wheel 114 turned to this storage tank 121 corresponding with it, this sharp shaped material 115 stretched in this storage tank 121, pricked saturating with the paper 70 that will enter.This paper-sheets rolling wheel 114 is used for paper 70 bundles being caught on thoroughly and firmly being involved in paper guide with the combining structure of this storage tank 121, carries to horizontal paper cutter structure.Certainly, also sharp shaped material can be set on this paper-sheets rolling wheel 114.As Fig. 3, also can be provided with paper on the paper blocking mechanism and import plate 21, this paper imports plate 21 and is used to make the paper 70 that enters from paper inlet 81 to enter paper guide smoothly.

As shown in Figure 5, each grate 112 lower end has paper guiding lead angle 116, the bundle that this paper guiding lead angle 116 is used to make paper 70 break away from paper-sheets rolling wheels 114 is held and is carried to horizontal paper cutter structure, and this paper guiding lead angle 116 also is used to make from the paper 70 of paper guide output and enters horizontal cut paper mechanism vertically downward, is beneficial to the transverse cuts of horizontal cut paper mechanism to paper 70.

As shown in Figure 3, laterally cut paper mechanism comprises circular knife 31 and dead knife 32; This circular knife 31 is installed in the shell 80 by the rotating shaft (not shown), and this rotating shaft is connected with transmission mechanism 50; Have a plurality of cutting edges on this circular knife 31, have a cutting edge on this dead knife 32; The cutting edge that rotates to the cutting edge of this circular knife 31 at top and this dead knife 32 is tangent, so that the paper 70 that enters horizontal cut paper mechanism is cut into laterally rectangular 71 (as Fig. 7) after by this circular knife 31 and this dead knife 32.

The helical angle of the cutting edge on the circular knife 31 can be set at greater than 0 degree and smaller or equal to 20 degree.For example, this helical angle can be 0.5 degree, 5 degree, 10 degree, 20 degree.If helical angle is 0 degree, the cutting edge of circular knife 31 is a parallel shape so, rather than skewed.The cutting edge that adopts parallel shape is when cutting paper 70, owing to do not form the angle of shear between the cutting edge of parallel shape and the paper 70, the suffered resistance of cutting edge is very big when making cutting, the continuous phenomenon of paper 70 cuttings therefore can occur.If helical angle is greater than 20 degree, though the cutting edge of circular knife is skewed,, because gradient is too big, what cutting obtained horizontal rectangular 71 is not one, and may be two sections or multistage (promptly with two sections or the more form appearance of multistage) more, and effect is not fine.And if with helical angle be controlled at greater than 0 the degree and smaller or equal to 20 the degree scopes in the time, not only has the angle of shear that can form certain angle between the circular knife 31 of helical angle of this angular range and the paper 70, make the cutting edge cutting laborsaving, paper can not occur and cut continuous phenomenon, and the cutting obtain horizontal rectangular be one, rather than multistage, reached and once be cut into a horizontal requirement of rectangular 71, below being beneficial to this laterally rectangular 71 is carried out further vertical cutting.

As Fig. 3, in actual design, can set up a baffle plate 33 at exit slot 82 places of horizontal cut paper mechanism, directly fall into following vertical cut paper mechanism and can not float towards other place to guarantee horizontal rectangular 71 of cutting.

As Fig. 3 and shown in Figure 6, vertical cut paper mechanism comprises the first bar shaped cutter 41 and the second bar shaped cutter 42; The spacing of a plurality of radially blades 421 that are arranged in parallel on the spacing of a plurality of radially blades 411 that are arranged in parallel on this first bar shaped cutter 41 and this second bar shaped cutter 42 equates, the radially blade 421 on the radially blade 411 on this first bar shaped cutter 41 and this second bar shaped cutter 42 interlock mutually flexibly connects; This first bar shaped cutter 41 is installed in the shell 80 by its rotating shaft, and this rotating shaft is connected with transmission mechanism 50; This second bar shaped cutter 42 is installed in the shell 80 by its rotating shaft, and this rotating shaft is connected with transmission mechanism 50.

As Fig. 3, the first bar shaped cutter 41, the second bar shaped cutter 42 can be separately installed with

guide plate

43,44, this

guide plate

43 and 44 is used to make the interlock that can turn 42 on the first bar shaped cutter 41 and the second bar shaped cutter from horizontal rectangular 71 of horizontal cut paper mechanism output smoothly, vertically to cut the particle operation.

For the paper particle that the utility model shredder is pulverized out reaches one-level shredded paper standard less than 1mm * 2mm, the utility model shredder also will carry out following setting: be staggeredly set between the sharp shaped material 115 of each paper-sheets rolling wheel 114, look from the axial direction of rubbing paper turning cylinder 113 with the hands, the spacing at two adjacent sharp shaped material 115 tips is less than 1 millimeter; Paper-sheets rolling wheel 114 and enter paper guide paper 70 prick bottom hold the position at a distance of the distance at

circular knife

31 and 32 tangent positions of dead knife smaller or equal to 1 millimeter; The paper feeding linear velocity that paper 70 is carried to horizontal paper cutter structure from paper guide is less than the shear line speed of circular knife 31 cutting edges; Radially blade 411 spacings on the first bar shaped cutter 41 and radially blade 421 spacings on the second bar shaped cutter 42 are all less than 2 millimeters.

As if being staggeredly set between the sharp shaped material 115 that makes each paper-sheets rolling wheel 114, and look from the axial direction of rubbing paper turning cylinder 113 with the hands, the spacing at two adjacent sharp shaped material 115 tips is less than 1 millimeter, so, for a piece of paper, on vertical direction, the upper and lower bundle on this paper is held a little apart distance for less than 1 millimeter.That is to say, when paper is admitted to paper guide fully, though rectangular can not the bundle by sharp shaped material 115 of this paper final stage held, but the rectangular width of this remaining final stage is also in less than 1 millimeter scope, even following horizontal cut paper mechanism can not cut it (because during the horizontal cut paper of the rectangular process of this final stage mechanism, there is not sharp shaped material 115 that it is fixed, promptly do not prick and hold a little, it is in active state, therefore, circular knife 31 and dead knife 32 can't effectively cut it.), it also satisfies particle width in the one-level shredded paper standard less than 1 millimeter.In reality is implemented, to look from the axial direction of rubbing paper turning cylinder 113 with the hands, the spacing at two adjacent sharp shaped material 115 tips can be set at 0.99 millimeter, 0.9 millimeter, 0.5 millimeter, 0.1 millimeter etc.

Paper-sheets rolling wheel 114 and pricking bottom of the paper 70 that enters paper guide are held the position and are meant that the paper 70 and the sharp shaped material 115 contacted bundles of paper-sheets rolling wheel 114 are positioned at nethermost that bundle in holding a little and hold a little.32 tangent positions of circular knife 31 and dead knife are meant circular knife 31 cutting edges and the tangent position of dead knife 32 cutting edges.

When setting paper feeding linear velocity that paper 70 carries to horizontal paper cutter structure from paper guide less than the shear line speed of circular knife 31 cutting edges, paper-sheets rolling wheel 114 and pricking bottom of the paper 70 that enters paper guide hold the position apart the distance at

circular knife

31 and 32 tangent positions of dead knife smaller or equal to 1 millimeter.For example, in reality is implemented, paper-sheets rolling wheel 114 and pricking bottom of the paper 70 that enters paper guide hold the position apart the distance at

circular knife

31 and 32 tangent positions of dead knife can be set at 0.95 millimeter, 0.8 millimeter, 0.1 millimeter.Certainly because frame for movement limits, paper-sheets rolling wheel 114 and the bundle bottom of the paper 70 that enters paper guide hold the position not can and 32 tangent positions of circular knife 31 and dead knife contact, just the two distance can not equal 0.In addition, when paper-sheets rolling wheel 114 and the pricking bottom of paper 70 that enter paper guide are held the distance of position at a distance of

circular knife

31 and 32 tangent positions of dead knife when equaling 1 millimeter, because the paper feeding linear velocity that paper 70 is carried to horizontal paper cutter structure from paper guide is less than the shear line speed of circular knife 31 cutting edges, actual horizontal rectangular 71 the width W that cuts out also can be less than 1 millimeter, therefore, paper-sheets rolling wheel 114 and the pricking bottom of paper 70 that enter paper guide are held the distance of position at a distance of

circular knife

31 and 32 tangent positions of dead knife to equal 1 millimeter this scheme are feasible.

The paper feeding linear velocity that paper 70 is carried to horizontal paper cutter structure from paper guide should be less than the shear line speed of circular knife 31 cutting edges, and the ratio between shear line speed and paper feeding linear velocity can realize by configuration transmission mechanism 50.For example, under the prerequisite that speed rationally is set, shear line speed can be 1.1 times, 2 times, 5 times or more of paper feeding linear velocity.Equal the paper feeding linear velocity if set shear line speed, though horizontal rectangular 71 the width W that cuts out in theory just in time is 1 millimeter, but actual obtain horizontal rectangular 71 have burr, horizontal rectangular 71 the width W that just obtains should be considered as not meeting one-level shredder standard greater than 1 millimeter.

Radially blade 411 spacings on the first bar shaped cutter 41 and radially blade 421 spacings on the second bar shaped cutter 42 are all less than 2 millimeters.The spacing of the radially blade 411,421 on first, second bar shaped

cutter

41,42 has determined horizontal rectangular 71 to be cut the length L (as shown in Figure 7, the width of particle 72 is W) of resulting granules 72 once more.If the spacing of the radially blade 411,421 on first, second bar shaped

cutter

41,42 is set at 1.95 millimeters, the length L of the particle 72 that then cuts out just is 1.95 millimeters.For example, the spacing of the radially blade 411,421 on first, second bar shaped

cutter

41,42 also can be set at 1.5 millimeters, 1 millimeter, 0.5 millimeter, 0.1 millimeter etc.

This transmission mechanism 50 can comprise belt, gear.The rotating shaft of the stranding paper turning cylinder 113 of paper-sheets rolling wheel 114, the rotating shaft of circular knife 31, the first bar shaped cutter 41, the rotating shaft of the second bar shaped cutter 42 are separately fixed on the

side plate

61 and 62 and are connected with a gear respectively, mutual meshing connection between each gear, rotate by one of them gear of driven by motor, can drive all gears and rotate.Meshing structure between each gear rationally is set, the speed proportional between paper-sheets rolling wheel 114, circular knife 31, the first bar shaped cutter 41, the second bar shaped cutter 42 just can be set.

In reality is implemented, also can adopt rubber the paper guide of roll form to be realized paper 70 is imported the purpose of horizontal cut paper mechanism.When adopting rubber to the paper guide of roll form, if the paper particle of wanting to realize cutting 72 is less than 1mm * 2mm, then except the spacing of the spacing that will satisfy the radially blade 411 on the first bar shaped cutter 41 and the radially blade 421 on the second bar shaped cutter 42 all less than 2 millimeters, paper 70 from paper guide outside paper feeding linear velocity these two conditions of shear line speed that horizontal paper cutter structure is carried less than circular knife 31 cutting edges, also to satisfy the rubber pair roller with the retaining part bottom of the paper 70 that enters paper guide apart the distance at

circular knife

31 and 32 tangent positions of dead knife smaller or equal to 1 millimeter this condition.

Comprise that the paper guide of paper-rubbing mechanism and paper blocking mechanism and rubber are the difference of the paper guide of roll form: rubber is to the effective clamping a piece of paper of the paper guide of roll form, when plurality of sheets of paper is sent into paper inlet 81 simultaneously, sliding phenomenon can appear between paper, paper can't be neatly, firmly carry to horizontal paper cutter structure by paper guide, transverse cuts operation below can influencing, horizontal rectangular 71 weak effects that transverse cuts goes out; And have sharp shaped material 115 owing to comprise the paper-sheets rolling wheel 114 that the paper guide of paper-rubbing mechanism and paper blocking mechanism adopts, and sharp shaped material 115 can extend in the storage tank 121, therefore, when one or more paper 70 is sent into paper guide, paper all can be pricked thoroughly, catch on by sharp shaped material 115, thereby paper can drive along with the rotation of paper-sheets rolling wheel 114 and firmly carry to horizontal paper cutter structure, has guaranteed carrying out smoothly of following transverse cuts operation.

As Fig. 1 to Fig. 7, the course of work of the utility model shredder is:

Open motor, motor drives the rotating shaft of circular knife 31, the rotating shaft of the first bar shaped cutter 41, the rotating shaft of the second bar shaped cutter 42, stranding paper turning cylinder 113 rotations of paper-sheets rolling wheel 114 via belt, gear, paper guide, laterally cut paper mechanism and vertical cut paper mechanism are in running status.

Paper to be pulverized (one or more) is sent into paper inlet 81, and paper 70 imports plate 21 along paper and enters paper guide.In paper guide, paper 70 is pricked thoroughly, is caught on and move downward by sharp shaped material 115, carries to horizontal paper cutter structure via paper guiding lead angle 116 guiding backs.In horizontal cut paper mechanism, the cutting edge of circular knife 31 is towards the cutting edge rotation of dead knife 32, the top of paper 70 by the sharp shaped material on the paper-sheets rolling wheel 114 115 prick hold fixing and its underpart cut into by circular knife 31 and dead knife 32 laterally rectangular 71, this laterally width W of rectangular 71 less than 1 millimeter.Then, horizontal rectangular 71 freely falling bodies that cut into are fallen into vertical cut paper mechanism.In vertical cut paper mechanism, the first bar shaped cutter 41 and the second bar shaped cutter 42 rotate (constant speed or differential) in opposite directions, falling into horizontal rectangular 71 of the first bar shaped

cutter

41 and 42 interlocks place of the second bar shaped cutter is bitten and is involved in first, second bar shaped

cutter

41,42, vertically cut into a plurality of particles 72, the length L of this particle 72 is less than 2 millimeters, width W has satisfied one-level shredded paper standard less than 1 millimeter.At last, the particle 72 that cuts into is from exit slot 82 outputs, thereby whole pulverizing destruction process is finished.

Above-mentioned is preferred embodiment of the present utility model and the know-why used thereof; for a person skilled in the art; under the situation that does not deviate from spirit and scope of the present utility model; any based on conspicuous changes such as the equivalent transformation on the technical solutions of the utility model basis, simple replacements, all belong within the utility model protection domain.

Claims

1. shredder, it is characterized in that: it comprises shell, the top of this shell, bottom offer paper inlet, exit slot respectively, be equipped with in this shell and be used to be involved in, the paper guide of conveyance of sheets, be used for that paper cut into laterally rectangular horizontal cut paper mechanism and be used for the horizontal rectangular vertical cut paper mechanism that cuts into particle, wherein:

This horizontal cut paper mechanism is positioned at the below of this paper guide, and this vertical cut paper mechanism is positioned at the below of this horizontal cut paper mechanism; This paper guide, horizontal cut paper mechanism and vertical cut paper mechanism all are connected with transmission mechanism; This paper inlet is to should the paper guide setting, and this exit slot is provided with vertical cut paper mechanism.

2. shredder as claimed in claim 1 is characterized in that:

Described paper guide comprises paper-rubbing mechanism and paper blocking mechanism, this paper blocking mechanism and the corresponding setting of this paper-rubbing mechanism;

This paper-rubbing mechanism comprises a plurality of grates, a plurality of paper-sheets rolling wheel; The upper end of these a plurality of grates is fixed on the inside of described shell by locating shaft, and the lower end of these a plurality of grates and this a plurality of paper-sheets rolling wheels are crisscross arranged and rub with the hands on the paper turning cylinder at one, and this stranding paper turning cylinder is connected with described transmission mechanism; The outward flange of this paper-sheets rolling wheel is provided with a plurality of sharp shaped materials, and when this sharp shaped material turned to the position relative with this grade mechanism of paper, this sharp shaped material was exposed to the outside of this grate; The rotation of this stranding paper turning cylinder drives that all this paper-sheets rolling wheels rotate and grate keeps motionless;

This paper blocking mechanism comprises pressing board, corresponding each this paper-sheets rolling wheel on this pressing board and offer a storage tank; When each sharp shaped material of this paper-sheets rolling wheel turned to this storage tank corresponding with it, this sharp shaped material stretched in this storage tank.

3. shredder as claimed in claim 2 is characterized in that:

Each described grate lower end has paper guiding lead angle, the bundle that this paper guiding lead angle is used to make paper break away from described paper-sheets rolling wheel is held and is carried to described horizontal cut paper mechanism, and this paper guiding lead angle is used to make from the paper of described paper guide output and enters described horizontal cut paper mechanism vertically downward, is beneficial to the transverse cuts of described horizontal cut paper mechanism to paper.

4. shredder as claimed in claim 1 is characterized in that:

Described horizontal cut paper mechanism comprises circular knife and dead knife; This circular knife is installed in the described shell by rotating shaft, and this rotating shaft is connected with described transmission mechanism; Have a plurality of cutting edges on this circular knife, have a cutting edge on this dead knife; The cutting edge that rotates to the cutting edge of this circular knife at top and this dead knife is tangent, so that the paper that enters described horizontal cut paper mechanism is cut into after by this circular knife and this dead knife is laterally rectangular.

5. as claim 2 or 3 described shredders, it is characterized in that:

6. shredder as claimed in claim 4 is characterized in that:

The helical angle of the cutting edge on the described circular knife is greater than 0 degree and smaller or equal to 20 degree.

7. shredder as claimed in claim 5 is characterized in that:

8. shredder as claimed in claim 1 is characterized in that:

Described vertical cut paper mechanism comprises the first bar shaped cutter and the second bar shaped cutter; The spacing of a plurality of radially blades that are arranged in parallel on the spacing of a plurality of radially blades that are arranged in parallel on this first bar shaped cutter and this second bar shaped cutter equates, the radially blade on the radially blade on this first bar shaped cutter and this second bar shaped cutter interlock mutually flexibly connects; This first bar shaped cutter is installed in the described shell by its rotating shaft, and this rotating shaft is connected with described transmission mechanism; This second bar shaped cutter is installed in the described shell by its rotating shaft, and this rotating shaft is connected with described transmission mechanism.

9. shredder as claimed in claim 5 is characterized in that:

10. shredder as claimed in claim 9 is characterized in that:

Be staggeredly set between the sharp shaped material of each described paper-sheets rolling wheel, look from the axial direction of described stranding paper turning cylinder, the spacing at two adjacent sharp shaped material tips is less than 1 millimeter;

Described paper-sheets rolling wheel and enter described paper guide paper prick bottom hold tangent position at a distance of between described circular knife and described dead knife, position distance smaller or equal to 1 millimeter;

The paper feeding linear velocity that paper is carried to described horizontal cut paper mechanism from described paper guide is less than the shear line speed of described circular knife cutting edge;

Radially blade spacing on radially blade spacing on the described first bar shaped cutter and the described second bar shaped cutter is all less than 2 millimeters.