CN2267860Y

CN2267860Y - Paper crushing machine

Info

Publication number: CN2267860Y
Application number: CN96211073U
Authority: CN
Inventors: 陈冶
Original assignee: Achiever Industries Ltd sA
Current assignee: Achiever Industries Ltd sA
Priority date: 1996-01-22
Filing date: 1996-05-10
Publication date: 1997-11-19
Anticipated expiration: 2006-05-10
Also published as: GB2309177A; GB9700306D0; GB2309177B

Abstract

The utility model relates to a paper crushing machine comprising a shell and a paper crushing mechanism which is arranged in the shell. The paper crushing mechanism comprises a rotary shaft and a paper cutting platform which is composed of a rotary cutter supported on the rotary shaft and driven to rotate by the rotary shaft to cut supplied paper that passes through the paper cutting platform. The rotary cutter is protected by a fixed protective cover and a part of the cutter extends out of the fixed protective cover to cut paper. Best of all, the cutter is composed of a row of assembled rotary cutting discs and is protected by a plurality of protective covers.

Description

Shredder

The utility model relates to a kind of shredder.

In current society, the processing afterwards of paper carrier confidential data is a requisite job, and therefore, the use of shredder is extensive day by day.Traditional shredder is owing to the reason of aspects such as its structure, when making the shredder of different cut paper width, the interchangeability parts are less relatively, this has not only increased makes required equipment of each non-interchangeability parts and shared space thereof, and prolonged the manufacturing time and increased manufacturing cost, in addition, paper jam phenomenon in use also often takes place in traditional shredder, thereby has brought many inconvenience to the user.

The purpose of this utility model provides a kind of shredder.

According to the utility model first aspect; a kind of shredder is provided; include a shell and a paper shredder that is arranged in this shell; this paper shredder comprises a cutting station that is made of a rotating shaft and a rotary cutter; this rotary cutter is bearing on this axle and with this rotation; with the paper that cutting is supplied with by cutting station, this cutting knife by one fixedly protecting cover protect and have one and stretch out outside the protecting cover so that carry out the part of cut paper.

Preferably, cutting knife is made up of the rotation cutting element of some described protecting cover protections a row.

Preferablely be that each cutting element is positioned at relative two protecting cover protection by a pair of.

Preferably, described cutting element and protecting cover are arranged on the axle in an alternating manner.

Preferablely be, described protecting cover connects each other and is arranged to a row, and each protecting cover engages at a certain angle with adjacent protecting cover.

Preferably, the described cutting element form that is cutting disc.

In a preferred embodiment, described protecting cover has one and stretches out so that paper is guided the surface that enters cutting station, and the described part of cutting knife is protruding so that carry out cut paper from this surface.

In a kind of desirable concrete structure, described cutting station comprises two described axles and is bearing in described cutting knife separately on each, described cutting knife mutually in the face of and drive rotation in opposite direction by separately axle.

Preferable is that each cutting knife is made up of row's rotation cutting element, and two row's cutting elements stagger relative to each other vertically.

Preferably, described paper shredder comprises a secondary cutting station that is made of a rotatable helical cut axle, and this pair cutting station is arranged at after described first cutting station; So that the paper that infeeds by described first cutting station is further cut.

According to the utility model second aspect, a kind of shredder is provided, comprise a housing and a paper shredder that is arranged in this housing, this paper shredder comprise a rotating shaft and some be supported on this go up and by this driving rotate synchronously, rotation cutting element so that the paper of supplying with by cutting station is cut, this cutting element has roughly the same structure so that be used in combination, to form the adjustable length of a row.

Preferably, described cutting element is by fixedly protecting cover protection, and its part is exposed to outside the protecting cover so that paper is cut.

Because the utility model has adopted said structure, therefore the paper shredder with different maximum cut paper width can reduce manufacturing cost with identical parts manufacturing, can reduce paper jam phenomenon simultaneously.

Below, with reference to accompanying drawing the present invention is made more detailed description.Wherein:

Fig. 1 is the front perspective view of shredder one embodiment of the present invention;

Fig. 2 is the top perspective view of the inside paper shredder of Fig. 1 shredder;

Fig. 3 is the top view decomposition diagram of Fig. 2 paper shredder;

Fig. 4 is the partial enlarged view of Fig. 3.

Referring to each accompanying drawing, wherein show and embody shredder 10 of the present invention, this shredder 10 has a box-type shell 11, and this housing has the top slit opening 12 of a level; An and inside paper shredder 13 that is positioned at described slit opening 12 back.By slit opening 12 with in the waste paper 9 feeding housings 11 so that be cut into fractionlet by paper shredder 13, then these fractionlets are lodged in the waste paper bag in housing 11 bottoms.Paper shredder 13 has long main cutting station and

secondary cutting station

14 and 15, and they are installed on housing 11 inside by a pair of mounting bracket 16 that is positioned at two opposite ends, with slit opening 12 vertically on extend.When work, main cutting station 14 is drawn in paper 9 and paper is cut into paper slip along its direction of motion, and and then secondary cutting station 15 laterally is cut into the little scraps of paper with paper slip (when forming paper slip).

Main cutting station 14 is made of two

row

18A and 18B cutting assemblies 19, and cutting assembly is supported on separately the 17A of trunnion axis up and down and 17B, mutually facing to.Axle 17A and 17B have hexagonal section and are arranged close to each other abreast, to form the close gap 20 of a longitudinal extension between two

row

18A and 18B cutting assembly 19.Each cutting assembly 19 has a generally flat ring bodies 21, and this ring bodies 21 comprises a whole band shape part 22, and this band shape part 22 roughly becomes tangentially to extend and has an outer surface 23 from ring bodies 21.Assembly body 21 has a center hole 24, and coaxial reaming is carried out to form a pair of cylinder shape groove 25 in the relative both sides in this hole.Groove 25 has circumferential wall separately, and circumferential wall is being blocked with the intersection on the surface 23 of being with shape part 22, thereby forms the gap 26 of a pair of alignment in the relative both sides of assembly body 21.

Each cutting assembly 19 comprises that a pair of cutting disc 27 and is clipped in packing ring distance piece 28 therebetween, to constitute a rotation cutter unit 29.The diameter of cutting disc 27 is slightly less than the diameter of the groove 25 of cutting assembly 19.The diameter of packing ring distance piece 28 is slightly less than the diameter of this cutting disc 27, so that the blade of cutting disc 27 is exposed.Every pair of adjacent cutting assembly 19 on same axis 17A/17B is each other mutually by coaxial setting, and engages with corresponding side opening 21B on being formed at another assembly body 21 interfaces by two two side projection 21A that are arranged on assembly body 21 interfaces and to keep theta alignment.

On interface, a pair of groove 25 between the adjacent cutting assembly 19 aligns mutually, to form flattened cylindrical shape combination chamber, so that described cutter unit 29 is rotatably remained in wherein.This is to the also alignment mutually of gap 26 of groove 25, to form a combination slot, by this groove, a widget 29A who remains in the cutter unit 29 of combination in the chamber from the outer surface 23 of the same alignment of the band shape part 22 of adjacent cutting assembly 19 slightly projection expose so that carry out hereinafter described cutting paper manipulation.One ring washer 30 is fitted in the centre bore 24 of assembly body 21 of each adjacent cutting assembly 19 coaxially and rotatably.The ring washer 30 of the cutter unit 29 relative both sides between adjacent cutting assembly 19 is used for the cutting disc 27 and the packing ring distance piece 28 of cutter unit 29 are clamped together coaxially.

Under assembled configurations, the outer surfaces 23 that are bearing in separately the band-like portions 22 of two row 18A on axle 17A and the 17B and 18B cutting assembly 19 form the relative both sides in the gap 20 between two row 18A and the 18B cutting assembly, and stretch out so that the scraps of paper 9 are imported in the gaps 20.Two row one among 18A/18B row cutting assemblies 19 move axially with respect to another row's cutting assembly or half thickness of the single component body 21 that staggers.Therefore, be positioned at 20 relative both sides, gap cutter unit 29 protrude out that cutting part 29A staggers with being mutually symmetrical and overlapped during 20 vertically see from the gap.

All cutting discs 27 and packing ring distance piece and

ring washer

28 and 30 all have hexagonal centre bore 31, and be suitable with the hexagonal section of axle 17A and 17B, so that rotate synchronously with corresponding axle 17A and 17B.The two opposite end portions of axle 17A and 17B be can be rotated to support on separately the mounting bracket 16 by a pair of extremity piece 32 and corresponding lining 33 and end plate 34.Extremity piece 32 engages with assembly body 21 in the end of axle 17A and 17B, so that keep two

row

18A and 18B cutting assembly 19 not with axle 17A and 17B rotation.The least significant end that stretches out corresponding mounting bracket 16 of axle 17A and 17B is done flat, so that drive rotation by a motor drive mechanism (not shown), this point is known in this technical field.In addition, axle 17A and 17B arrange to such an extent that be driven in opposite direction, be positioned at rotation relative both sides cutting assembly 19, its cutting part 29A below gap 20/enter the cutter unit 29 in gap 20, being cut into paper slip along the paper 9 of fore-and-aft direction feeding via gap 20.

Secondary cutting station 15 is made of the cutting knife 36 of a helical cut axle 35 and a collaborative work.Cutting axis 35 is rotatably supported on the above-mentioned mounting bracket 16 by a pair of extremity piece 37 and corresponding axle sleeve 38 in its two opposite end, and its position is near the back of main cutting bed 14.Cutting knife 36 is fixed on the corresponding extremity piece 37 in its two opposite end, is positioned at the position of cutting axis 35 alongside.Cutting axis 35 is aimed at the gap 20 of main cutting station 14 with the interface between the cutting knife 36.The least significant end of cutting axis 35 stretches out from mounting bracket 16 separately, so that driven by aforesaid motor drive mechanism, rotates synchronously with the axle 17A and the 17B of main cutting station 14.

In when work, cutting axis 35 abut against fixing cutting knife 36 and relatively its rotations in case the paper slip that main cutting station 14 is produced when this paper slip generates immediately transverse cuts become a scrap of paper to handle to finish shredded paper, this cutting axis 35 is relatively and against these cutting knife 36 rotations.

Turn back to have only the fraction of cutter unit 29 referring to main cutting station 14 again, promptly cutting part 29A reveals by the paper contact that is cut processing and carries out cut paper and handle.Because the remainder of cutter unit 29 is covered fully or is blocked and protect by the assembly body 21 of corresponding cutting assembly 19.Therefore, they will can be not approaching with paper 9.Therefore, compare, can reduce the danger of paperboard with this paper shredder 13 greatly with all other paper shredders as known in the art.

Notice that this point is very important, promptly outer/the rear side of cutter unit 29 does not need to cover or protection, because the paper that remains to be shredded 9 can not arrive here usually.

Equally, adopt the cutting member of the cutting assembly 19 essentially identical kit forms of its structure and main cutting station 14, promptly cutter unit 29, greatly facilitate the adjusting of

cutting row

18A and 18B length, and this length has been determined maximum cut paper width.Therefore, the paper shredder with different maximum cut paper width can be with common parts, and promptly cutting assembly 19 is made, and has therefore reduced production cost.

In main cutting bed 14, cutter unit 29 on each 17A/17B and assembly body 21 are by the coaxial setting of over-over mode, and each cutter unit 29 is by two adjacent assembly body 21 protections of opposite side.It is contemplated that each cutter unit 29 can be lived separately protected to carry out by an independent lid or cap.

In a different embodiment, it is rotatable that main cutting station 14 has only an axle 17A/17B and corresponding cutter unit 29, and another root axle 17B/17A and corresponding cut paper unit 29 are fixed, thereby can have simpler structure, it is such that its situation is similar to the fixed cutting tool 36 of secondary cutting station 15.

Below only introduced the present invention, concerning those skilled in the art, under the situation that does not break away from protection domain of the present invention, can make various modifications and/or alternative described embodiment in the mode of example.

Claims

1, a kind of shredder; comprise that a housing and is arranged at the paper shredder in this housing; it is characterized in that; this paper shredder comprises one by a rotating shaft and the cutting station that the rotary cutter that is supported in this rotating shaft constitutes; rotary cutter drives rotation by described rotating shaft the paper of feeding cutting station is cut, described cutting knife by one fixedly protecting cover protect and have one and stretch out to carry out the part of cut paper from this protecting cover.

2, shredder as claimed in claim 1 is characterized in that, described cutting knife is made up of the rotation cutting element of some described protecting cover protections a row.

3, shredder as claimed in claim 2 is characterized in that, each cutting element is by a pair of protecting cover protection that is positioned at relative both sides.

4, shredder as claimed in claim 3 is characterized in that, described cutting element and protecting cover are arranged on the axle by over-over mode.

5, shredder as claimed in claim 4 is characterized in that, described protecting cover is arranged to a row by ground each other mutually, and each protecting cover engages by certain angle with adjacent protecting cover.

6, shredder as claimed in claim 2 is characterized in that, described cutting element is a cutting disc.

7, shredder as claimed in claim 1 is characterized in that, described protecting cover has one and stretches out in order to paper is imported the surface of cutting station, and the described cut paper part of cutting knife is come out from this surface projection.

8, shredder as claimed in claim 1 is characterized in that, described cutting station comprises two described axles and be contained in respect to one another corresponding cutting knife on each that each cutting knife drives rotation in opposite direction by corresponding axis.

9, shredder as claimed in claim 8 is characterized in that, each cutting knife is made up of row's rotation cutting element, and two row's cutting elements stagger each other vertically mutually.

10, shredder as claimed in claim 1, it is characterized in that, described paper shredder comprises a secondary cutting station that is made of a rotating screw cutting axis, and this pair cutting station is arranged at the above-mentioned first cutting station back so that the paper that feeds described first cutting station is further cut.

11, shredder as claimed in claim 1, it is characterized in that, described cutting knife is a plurality of rotation cutting elements, and each rotates cutting element and has and be convenient to be used in combination forming the substantially the same structure of the adjustable length of a row, and respectively rotates cutting element and drive rotation synchronously by described rotating shaft.