CN2291211Y

CN2291211Y - Paper disintegrating mechanism

Info

Publication number: CN2291211Y
Application number: CN97204644U
Authority: CN
Inventors: 陈冶
Original assignee: Achiever Industries Ltd sA
Current assignee: Achiever Industries Ltd sA
Priority date: 1996-01-22
Filing date: 1997-01-22
Publication date: 1998-09-16
Anticipated expiration: 2007-01-22
Also published as: GB2309178A; GB9701185D0

Abstract

The utility model relates to a paper pulverizer, comprising two shafts which are arranged together shoulder by shoulder and rotate towards opposite directions and two rows of rotary cutting units which are arranged on the corresponding shafts. A gap is formed between the two rows of rotary cutting units; when the rotary cutting units are driven by the shafts to rotate, the paper guided from the gap is cut into paper strip shapes. Each cutting unit is composed of two cutting discs which can rotate and fixed outer and inner disc-shaped parts which are alternatively and coaxially arranged on the corresponding shafts. The outer disc-shaped parts are correspondingly bigger than the inner disc-shaped parts, and are used for protecting the cutting discs; the inner disc-shaped parts are correspondingly smaller than the cutting discs.

Description

The paper disintegrating mechanism

The utility model relates to a kind of paper disintegrating mechanism.

Shredder has obtained a large amount of application, and the general cutting knife of existing paper disintegrating mechanism that is wherein adopted is revealing, and paper can directly touch.This shredder is easy to occur blocking and the damage machine.

The purpose of this utility model provides a kind of paper disintegrating mechanism of avoiding paper shredder to block.

To achieve these goals; the utility model provides a kind of paper disintegrating mechanism; it comprises that two are laid by mode with side direction mutually so that rotating in opposite direction axle and be installed in two on the every axle and flow back to the commentaries on classics cutter unit; opposite side between two row's cutter units forms a gap; cutter unit is driven revolution by axle; to be cut into the paper slip shape by the paper of gap feeding; each cutter unit can rotating chopping disk by two and two replace coaxial outer fixedly discoid part and the internal fixation disc shape part that is installed on the corresponding axis and form; said external stability discoid part is bigger than chopping disk; be used for protecting chopping disk not contacted by paper; be used for cutting said paper but expose a part of chopping disk at gap portion, the said inner discoid part chopping disk that compares is little.

The gap preferably has the opening of widening, and is used for guiding described paper to enter the gap.

Better scheme is that the gap oral area of widening is outwards expanded.

In first preferred embodiment, the oral area of widening in gap is constituted by the counterpart of outside discoid part.

In second preferred embodiment, the gap oral area of widening is constituted by the counterpart of chopping disk.

Outside and inner plate-like part surface preferably is staggered to that part or that surface in gap, so that along with paper slip forms paper slip is separated.

Be preferably, each exterior part can be surrounded an adjacent with it chopping disk, so that protect.

Be more preferably, each outside discoid part can the chopping disk that both sides are adjacent with it be surrounded to be protected.

The outside discoid part of on each those is preferably arranged mutually by certain angle.

This paper disintegrating mechanism can comprise one can rotating helical cut axle, and it is installed in two and flows back to and change after the cutter unit, so that further described paper slip crosscut is become strip.

The utility model also provides a kind of shredder that includes above-mentioned paper disintegrating mechanism.

Above-mentioned paper disintegrating mechanism has such advantage, and chopping disk has been subjected to effective protection, and this novel paper disintegrating mechanism is safe and reliable, practical.

Now with reference to accompanying drawing, with mode more detailed description the utility model for example, wherein:

Fig. 1 is the front perspective view of shredder that includes the paper disintegrating mechanism of first embodiment of the present utility model;

Fig. 2 is the top perspective of the paper disintegrating mechanism among Fig. 1;

Fig. 3 is the exploded view of the top perspective of paper shredder among Fig. 2;

Fig. 4 is the part of Fig. 3, according to the ratio of an amplification, has showed a pair of cutting assembly of paper disintegrating mechanism;

Fig. 5 is the decomposition diagram that includes the shredder of second embodiment paper disintegrating mechanism of the present utility model;

Fig. 6 is the part of Fig. 5, has showed a pair of cutting assembly of paper disintegrating mechanism in the figure of this amplification;

Fig. 7 is the decomposition diagram of cutting assembly shown in Figure 6.

At first referring to figs. 1 through Fig. 4, shown in the figure is a shredder 10, this shredder has the outer cover 11 of a housing form, the inverted draw cut mouth 12 that a level is arranged on this outer cover, this shredder also comprises the described paper disintegrating mechanism 13 of first embodiment of the utility model, and it is placed in the back of notch 12.Waste paper is opened 9 and is fed outer covers 11 from notch 12, by paper disintegrating mechanism 13 crumble into fractions shapes, is collected in then in the waste paper bag of being located in outer cover 11 bottoms.Paper disintegrating mechanism 13 has principal elongation cutting part 14 and auxiliary elongate cutting part 15, and they are fixed two by a pair of carriage 16 on the length direction of notch 12 in outer cover 11.When operation, main cutting part 14 is caught paper 9 and along the direction that paper advances paper is cut into paper slip, and auxiliary cutting part 15 is and then with the fragment of paper slip (when it forms) crosscut Cheng Gengxiao.

Main cutting part 14 is provided with a pair of

cutting assemblies

14A and 14B, and they are installed in by two rows, and trunnion axis 1 7A of corresponding upper and lower and the cutting assembly 19 on the 17B constitute.Axle 17A and 17B have hexagonal shape of cross section, and they are placed in together side by side, longitudinally form a narrow gap 20 between two row's cutting assemblies 19.Each cutting assembly 19 all has the main body 21 of a plate-like, comprises a whole strip part 22 of extending along module body 21 tangent lines substantially on it and has outer surface 23.Parts 21 have the centre bore 24 of a circle, form a cylindrical dimple 25 in the coaxial expansion in two of centre bore 24.Dimple 25 has corresponding perisporium, and it does not seal, and is cutting open with 23 intersections, surface of strip part 22, aims at slits 26 in two of the opposite side formation of parts 21.

Each cutting assembly 19 comprises a pair of chopping disk 27 and every the shim-like interlayer 28 between them, does as a wholely, and they have formed can rotating cutter unit 29.The diameter of chopping disk 27 is slightly smaller than the diameter of dimple 25 on the module body 21.The diameter of interlayer 28 is slightly smaller than the diameter of chopping disk 27, so that can expose the edge of a knife of chopping disk 27.Each goes up to being fixed on same axle 17A/17B that adjacent cutting assembly 19 is close together coaxially mutually and they are aligned on the axle at a certain angle, fixing them is to be inserted in another module body 21 interface upper-side hole 21B by the bilateral column cap 21A on module body 21 interfaces, thereby two cutting assemblies 19 are connected together.

Interface between two

adjacent cutting assemblies

19,25 pairs of a pair of dimples form a flat cylindric composite space together, and being used within it keeping can rotating cutter unit 29.Gap 26 on the adjacent a pair of dimple 25 is aligned in mutually and forms a compound groove together, the sub-fraction 29A of the cutter unit 29 in the compound flat cylindrical space 26 stretches out from the gap, and stretch out the outer surface part 23 of strip part 22 of the mutual alignment of adjacent cutting assembly 19 a little, be used for cutting paper.The core of module body 21 (forming hole 24) has identical thickness with bed course 28, so that be slit into equal axial distance between each row's chopping disk 27 quilts.A ring 30 is installed in the centre bore 24 of each module body 21 coaxially pivotally.

Under situation about assembling, the outer surface 23 of the strip part 22 of cutting assembly 19 is connected with each other, and they outwards diverge on relative both sides, forms a clearance aperture 20 of having widened, and is used for paper 9 is imported in the gaps 20.One row's cutting assembly 19 vertically with another row's cutting assembly a bit of distance that staggers, thereby 20 any one from the gap of the cutting part 29A of the cutter unit 29 that stretch out on 20 relative both sides, gap sees overlapped.All chopping disks 27, bed course 28 and ring 30 all have a hexagon centre bore 31, and this is for the ease of being installed on connecting axle 17A and the 17B they to be turned round synchronously.Axle 17A and 17B by pair of end parts 32 (end-pieces) be connected lining (bushing) 33 and end plate (end-plates) 34, be fixed on pivotally on the corresponding carriage 16 from two.In order to guarantee that all module body 21 are fixed by axle 17A and 17B in when revolution, end part 32 is connected with corresponding outermost end module body 21 mutually at two of axle 17A and 17B.The head end of axle 17A and 17B stretch out corresponding carriage 16 and be flat be convenient to driven revolution by a drive unit (not shown).

When operation, axle 17A and 17B are driven along opposite direction revolution, particularly, make cutter unit 29 revolutions on the opposite side, thereby drive the paper 9 of cutting part 29A cutting from outer cover inverted draw cut mouth 12 and gap 20 inputs, and it is cut into paper slip.The outer surface of

module body

21 and 20 the bed course 28 interlaced configurations towards the gap are so that separate the paper slip that is shaped.

Clearly, only the sub-fraction of cutter unit 29 is that cutting part 29A exposes, and is used for touching and cuts paper 9.Because the remainder of cutter unit 29 is capped or cries and is closed, thereby its is protected by the main body 21 of corresponding cutting assembly 19, and they can not be touched by paper 9.Thereby, use this paper disintegrating mechanism 13 can significantly reduce the obstruction of paper.

Auxiliary cutting part 15 is made of the cutter 36 of a helical cut axle 35 and a common operation.On the position after an and then main cutting part 14, helical cut axle 35 by from two with end part 37 be connected lining 38 rotatable being fixed on the above-mentioned carriage 16.Cutter 36 are fixed on the respective end portions part 37 from two ends, make it to abut against the side of cutting axis 35.The gap 20 of main cutting part 14 is just aimed at interface between cutting axis 35 and the cutter 36.The head end of cutting axis exposes corresponding carriage 16, is convenient to be driven by above-mentioned motor transmission mechanism, rotates synchronously with the axle 17A and the 17B of main cutting part 14.

When operation, cutting axis 35 with respect to and against 36 revolutions of fixing cutter, thereby will further cut into fractionlet from the paper slip that main cutting part 14 comes out, finish whole crushing process thus.

In main cutting part 14; cutter unit 19 on each 17A/17B and module body 21 are by alternately coaxial installation; each cutter unit 29 can both be surrounded by the adjacent component main body 21 on both sides and reach the purpose of protection, also can be designed to each cutter unit 29 and be wrapped by the big envelope of unit or shell and make independent protection.

With reference to shown in Fig. 5 to 7, they have showed another one shredder 110, and it has comprised implements second paper disintegrating mechanism 113 of the present utility model.Shredder 110 has an outer cover 111, one horizontal notches 112 to feed in it.Paper disintegrating mechanism 113 is made of a pair of cutting assemblies, and this cutting assemblies is that two rows are installed in the cutting assembly 119 on corresponding forward and backward trunnion axis 1 17A and the 117B.Axle 117A and 117B have hexagonal section respectively, and their are close to and are installed in together, form a narrow gap 120, and this gap is longitudinal extension between two row's cutting assemblies 119.

Each cutting assembly 119 all is made of a plate 121, and this plate has an interstitial hole 124 and a front 126, also comprises two chopping disks 127 and is clipped in the bed course 128 of the shim-like between the chopping disk, and they make as a whole formation revolution cutter unit 129.The diameter of chopping disk 127 is bigger than the diameter of bed course 128.By an adjacent coaxial installation in ground, alternately arrange by dish 121 and cutter unit 129 on each 117A/117B for cutting assembly 119.Dish 121 has a processus aboralis part 125 with holes separately on the same position of the reverse side in its front 126, and coils 121 and all kept by a bar that is through in the processus aboralis part 125, makes them on same straight line.The size of chopping disk 127 makes them all have sub-fraction 127A to stretch out dish 121 front 126 a little separately, in the hole 124 of each dish 121, all be equipped with one coaxial can rotating ring 130.

Dish 121 has identical thickness with bed course 128, so that make every row's chopping disk 127 be divided into equal axial distance mutually on axle.Wherein row's cutting assembly 119 is all with respect to another row's a bit of distance that staggers vertically, thereby one side make the cutting part 127A of the chopping disk 127 that 120 both sides, gap extend out from the gap 120 any see all overlapped.

Chopping disk 127 has a hexagon centre bore 131 that the confession installs and fixes, and coupled axle 117A and 117B drive revolution synchronously.Axle 117A is installed on a pair of carriage 116A and the 116B from two with being connected lining 132 pivotally with 117B.Their two separately of two bar 125A is all linked together with carriage 116A and 116B by corresponding, thereby makes dish 121 keep stablizing when axle 117A and axle 117B revolution.Each of axle 117A and axle 117B all by along being installed in the outside of corresponding carriage 116A/116B with same axially parallel ground, makes axle 117A and axle 117B can while with identical speed along opposite direction turn round by being meshing with each other of the gear on the every axle 133 to adjacent head end.

In the installed inside of carriage 116A an electro-motor 134, it has an output pinion 134A, and a gear-box 135 that includes one group of reduction gearing series 135A to 135F is arranged in the outside of this gear.In this series of gears, first gear 135A and last gear 135F mesh and the coaxial contiguous head end that is installed in a 117B with motor pinion 134A respectively.This structure arrangement can make motor 134 driving shaft 117B, and axle 117B is by the gear 133 driving shaft 117A at two.

Paper cutter sweep 113 is fixed on the inside of paper pulverizer shell 111, aligns with the latter's notch 112 in the former gap 120.When operation, axle 117A and 117B are driven along opposite direction revolution, drive the chopping disk 127 that is positioned at two axle both sides, and their cutting part 127A will be from the paper cutting slivering of notch 112 and gap 120 feedings.There is a ledge 126A in the front 126 of each dish 121.These ledges 126A and the surperficial interlaced arrangement of 120 bed course 128 towards the gap can be separated the paper slip that is shaped.

Each dish 121 all has a chamfering 123, and this chamfering is approximately 45 ° with respect to the angle of inclination of leading edge 126.This chamfering 123 is used for exposing on the chopping disk 127 and the adjoining extention 127B of cutting part 127A.The part 127B that the chopping disk 127 on both sides is exposed fuses; Outwards separately form the oral area in a gap of widening 120, so that the paper that will be cut draws in gap 120.

Clearly, chopping disk 127 only is that a part is that 127A and 127B can be exposed by paper and touch, and the remaining part plant of chopping disk is coiled in 121 circumference and is protected, and they can not be touched by paper.Thereby the use of this disintegrating mechanism 113 can reduce the danger that paper stops up greatly.

The utility model only provides by way of example, and under the prerequisite of the protection domain that does not break away from following claim, those of ordinary skill in the art can carry out various improvement or improvement to described embodiment.

Claims

1; a kind of paper disintegrating mechanism; it is characterized in that; it comprises that two are fitted together rotating in opposite direction axle and two rows by mode mutually with side direction and are installed in revolution cutter unit on the corresponding axis; between the cutter unit on both sides, form a gap; when driving the cutter unit revolution, axle will cut into the paper slip shape from the paper of gap feeding; each cutter unit can rotating chopping disk by two and the outside and inner static discoid part that alternately is fixed on the corresponding axis constitute; said outside discoid part is relatively big than chopping disk; being used for protecting chopping disk to avoid paper touches; and exposing a part of chopping disk cutting described paper at gap portion, the said inner discoid part chopping disk that compares is little.

2, paper disintegrating mechanism as claimed in claim 1 is characterized in that there is an oral area of widening in described gap, and is used for said paper is imported the gap.

3, paper disintegrating mechanism as claimed in claim 2 is characterized in that the said gap oral area of widening outwards diverges to.

4, paper disintegrating mechanism as claimed in claim 2 is characterized in that the said gap oral area of widening is constituted by the corresponding part of outside discoid part.

5, paper disintegrating mechanism as claimed in claim 2 is characterized in that the said gap oral area of widening is constituted by the corresponding part of chopping disk.

6, paper disintegrating mechanism as claimed in claim 1 is characterized in that outside and inner plate-like part surface to the arrangement that intermeshes of the part in gap or surface, is used for the paper slip of shaping is separated.

7, paper disintegrating mechanism as claimed in claim 1, it is characterized in that each outside discoid part can with an adjacent chopping disk protectiveness be surrounded.

8, paper disintegrating mechanism as claimed in claim 7 is surrounded with it is characterized in that two chopping disk protectiveness that each outside discoid part can be adjacent with both sides.

9, paper disintegrating mechanism as claimed in claim 1 is characterized in that the outside discoid part on each all mutually combines at a certain angle.

10, paper disintegrating mechanism as claimed in claim 1 is characterized in that it has one can be loaded on after the cutter unit by rotating helical cut axle, is used for said paper slip is further cut into strip.