EP1493488A1 - Single cutter shredder - Google Patents
Single cutter shredder Download PDFInfo
- Publication number
- EP1493488A1 EP1493488A1 EP03007687A EP03007687A EP1493488A1 EP 1493488 A1 EP1493488 A1 EP 1493488A1 EP 03007687 A EP03007687 A EP 03007687A EP 03007687 A EP03007687 A EP 03007687A EP 1493488 A1 EP1493488 A1 EP 1493488A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutter
- rotary
- fixed
- holder
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/25—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
- B26D1/34—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
- B26D1/38—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member
- B26D1/385—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a fixed blade or other fixed member for thin material, e.g. for sheets, strips or the like
Definitions
- the present invention relates to an improved structure of shredder, especially, is a single cutter shredder.
- Shredder just as its name implies , a machine that cut paper into chips by mechanical cutting, the more important object is to destroy the content on the paper and to keep security, besides to cut the paper into chips to decrease the quantity of the garbage to protect environment.
- Shredder can be classed into two types, the stripe-cut shredders and cross-cut shredders, according to the machine cutting style.
- strip-cut shredder as shown in FIG. 1, American patent number 6,260,780, is coupled a plurality of cutting disks and spacers on the rotary cutter shaft, and use the shearing force that the two opposite rotary cutter shaft produce and transfer to paper to cut paper passed through in longitudinal direction into stripes.
- cross-cut shredder as shown in FIG.
- every cutter has more than one blade part, and cutter is disposed helically on the rotary cutter shaft to cut paper in latitudinal direction into strips and further cut paper in longitudinal direction into approximate 5mmx40mm paper chips.
- the said strip-cut shredder or cross-cut shredder has rotary cutter shaft composed of a plurality of cutters or spacers, the cost of parts of cutters or spacers and the expenses of assemble by workers account for a considerable proportion on the cost of entire shredder. Additional, most of the cutters and spacers are moldings, the accumulative tolerance that formed from the add up of permitted tolerance of every parts arranged on cutter shaft will often results in the two opposite cutters can't be put in order and form assemble fault that must be adjusted specially to operate normally and is troublesome.
- the main object of the present invention is to provide a single cutter shredder , is set a plurality of rotary cutter into cutter sliders to form a single cutter, and use the shearing force that the rotary cutter and holder bring to paper to cut paper to be cut in latitudinal direction into countless paper chips to realize the object of cutting paper.
- the second object of the present invention is to provide a single cutter shredder, is by the shearing force that the single cutter formed from few rotary cutter inserting into cutter sliders and fixed cutter bring to paper passing through to realize the object of cutting paper, omit completely the plurality of cutters and spacers of rotary cutter of well-known strip-cut shredder or cross-cut shredder to decrease the cost of parts and the relative expenses of assemble by workers.
- the another object of the present invention is to provide a single cutter shredder that has no the problem of accumulative tolerance on assemble because omit completely the plurality of cutters and spacers of rotary cutter of well-known stripe-cut shredder or cross-cut shredder.
- the present invention mainly comprises: cutter frame 1, holder 2, rotary cutter 3 and feeding assembly 4, wherein,
- Cutter frame 1 includes left, right end plates 10,11, and has some latitudinal spacing rods for supporting and bearing the weigh of relative members.
- Holder 2 bestrides on the left, right cutter frame 10,11 and has straight groove 20 (as shown in view A) on the bottom for fixed cutter 22 having a sine wave continuous mold 221 and spaced cutting mold 222 inserting into, fixed cutter 22 has locating long holes 21 on the two sides (as shown in FIG. 4), when fixed cutter 22 be inserted into straight groove 20, the fixed cutter 22 will be located on holder 2 by fixed pin 24 through said locating long holes 21.
- a wave spring 23 is set in the straight groove 20 of holder 21 and disposed upon the fixed cutter 22, the spring 21 bring downward compression to fixed cutter 22 to enable fixed cutter 21 move up and down in the region of locating long holes 21.
- rotary cutter 3 includes hexagonal cutter shaft 30, bushing 31, E ring 32 and a plurality of rotary cutters 33.
- the two ends of said hexagonal cutter shaft 30 are fixed on left, right end plates 10,11 and are driven by well-known drive mechanism to rotate.
- Cutter shaft 30 has some sliders 301 equally spaced around the perimeter, slider 301 has cooer tail groove 302 for preventing cutter shaft 30 falling out.
- the two ends of rotary cutter 33 will be fixed by E rings 32 and be located on cutter shaft 30 and will no move along axis and radial direction.
- the rotary shaft 33 has sine continuous blades 332 and spaced cutters 33 corresponding to the sine continuous mold 221 and spaced cutting mold 222 of fixed cutter 22.
- feeding assembly 4 for feeding paper downward is disposed upon rotary cutter 33 and on the out side of holder 2 and has rotary shaft 40 coupled on left, right cutter frame 10,11 and at least two feeding rollers 41 with sharp teeth fixed on rotary shaft 40.
- rotary shaft 40 be driven by well-known drive mechanism to rotate, the sharp teeth of feeding roller 41 has the effect of pricking the paper to be cut and pulling it downward for shredder.
- the present invention after assembled, by cutting act similarly scissors that between rotary 33 and fixed cutter 22 that give shearing force to cut paper to be cut in latitudinal direction, and corporate spaced cutter 333 and spaced cutting mold 222 to further cut paper strips that had been cut in latitudinal direction into paper chips C (as shown in FIG. 5) then realize the final object of cross-cut paper to be cut.
- said wave spring 23 disposed upon fixed cutter 22 will act as a buffer, at the same time, the spring 23 bring continuously downward press to fixed cutter 22 to make the minimal clearance between fixed cutter 22 and rotary cutter 33 (the ideal clearance is zero), that is helpful to make cut act become more sharply and decrease the phenomena of raw edge of cut paper.
- the outline of rotary cutter and fixed cutter 22 is designed as continuous sine wave so paper to be cut will be cut into countless sine waved paper chips C.
- the outline of sine wave may be changed into square wave or V-shaped wave according to the market need and would not be confined with the shape disclosed by the embodiment.
- the present invention is set a plurality of rotary cutter into cutter sliders to form a single rotary cutter, and use the shearing force that the rotary cutter and holder bring to paper to cut paper to be cut in latitudinal direction into countless paper chips to realize the object of cutting paper.
- the present invention satisfies the criterion for novelty.
- the present invention is proposed according-to related acts, it will be appreciated if this invention is granted patent right.
Abstract
The present invention is a single cutter shredder, mainly comprises:
a cutter frame (1), a holder (2), a rotary cutter (3) and a feeding
assembly (4). The single cutter shredder cut paper into countless paper
chips by the shearing force between the rotary cutter formed from a
plurality of cutters inserted into corresponding number of slits in a
cutter-shaft, and a fixed cutter mounted to the holder.
Description
- The present invention relates to an improved structure of shredder, especially, is a single cutter shredder.
- Shredder, just as its name implies , a machine that cut paper into chips by mechanical cutting, the more important object is to destroy the content on the paper and to keep security, besides to cut the paper into chips to decrease the quantity of the garbage to protect environment.
- Shredder can be classed into two types, the stripe-cut shredders and cross-cut shredders, according to the machine cutting style. So-called strip-cut shredder, as shown in FIG. 1, American patent number 6,260,780, is coupled a plurality of cutting disks and spacers on the rotary cutter shaft, and use the shearing force that the two opposite rotary cutter shaft produce and transfer to paper to cut paper passed through in longitudinal direction into stripes. And the so-called cross-cut shredder, as shown in FIG. 2, American patent number 6,260,780, every cutter has more than one blade part, and cutter is disposed helically on the rotary cutter shaft to cut paper in latitudinal direction into strips and further cut paper in longitudinal direction into approximate 5mmx40mm paper chips.
- We can learn from that the said strip-cut shredder or cross-cut shredder has rotary cutter shaft composed of a plurality of cutters or spacers, the cost of parts of cutters or spacers and the expenses of assemble by workers account for a considerable proportion on the cost of entire shredder. Additional, most of the cutters and spacers are moldings, the accumulative tolerance that formed from the add up of permitted tolerance of every parts arranged on cutter shaft will often results in the two opposite cutters can't be put in order and form assemble fault that must be adjusted specially to operate normally and is troublesome.
- The inventor think over an improved shredder that can overcome the disadvantages of said well-known shredder and create a single cutter shredder through longtime study and test.
- The main object of the present invention is to provide a single cutter shredder , is set a plurality of rotary cutter into cutter sliders to form a single cutter, and use the shearing force that the rotary cutter and holder bring to paper to cut paper to be cut in latitudinal direction into countless paper chips to realize the object of cutting paper.
- The second object of the present invention is to provide a single cutter shredder, is by the shearing force that the single cutter formed from few rotary cutter inserting into cutter sliders and fixed cutter bring to paper passing through to realize the object of cutting paper, omit completely the plurality of cutters and spacers of rotary cutter of well-known strip-cut shredder or cross-cut shredder to decrease the cost of parts and the relative expenses of assemble by workers.
- The another object of the present invention is to provide a single cutter shredder that has no the problem of accumulative tolerance on assemble because omit completely the plurality of cutters and spacers of rotary cutter of well-known stripe-cut shredder or cross-cut shredder.
-
- FIG. 1 is a well-known strip-cut shredder disclosed by US Patent No. 6,113,017;
- FIG. 2 is a well-known cross-cut shredder disclosed by US Patent No. 6,260,780;
- FIG. 3 is a perspective of outline of the present invention;
- FIG. 4 is a combined sectional view of holder taken on the line of 4-4 in FIG. 3;
- FIG. 5 is a combined perspective view of the present invention;
- FIG. 6 is a combined sectional view taken on the line 6-6 in FIG. 3;
- FIG. 7 shows the operation of feeding and cutting of the present invention.
-
- The present invention will be described in detail hereinafter, with reference to accompanying drawings.
- Please refers to FIG. 3 through FIG. 6, the present invention mainly comprises: cutter frame 1,
holder 2,rotary cutter 3 andfeeding assembly 4, wherein, - Cutter frame 1 includes left,
right end plates -
Holder 2 bestrides on the left,right cutter frame cutter 22 having a sine wavecontinuous mold 221 and spacedcutting mold 222 inserting into, fixedcutter 22 has locatinglong holes 21 on the two sides (as shown in FIG. 4), when fixedcutter 22 be inserted intostraight groove 20, the fixedcutter 22 will be located onholder 2 by fixedpin 24 through said locatinglong holes 21. Awave spring 23 is set in thestraight groove 20 ofholder 21 and disposed upon the fixedcutter 22, thespring 21 bring downward compression to fixedcutter 22 to enable fixedcutter 21 move up and down in the region of locatinglong holes 21. - Please refers to FIG. 5, FIG. 6, view B, view D and view E,
rotary cutter 3 includeshexagonal cutter shaft 30, bushing 31,E ring 32 and a plurality ofrotary cutters 33. The two ends of saidhexagonal cutter shaft 30 are fixed on left,right end plates Cutter shaft 30 has somesliders 301 equally spaced around the perimeter,slider 301 hascooer tail groove 302 for preventingcutter shaft 30 falling out. Corresponding tocutter shaft 30, after thecooer tail part 331 ofrotary cutter 33 ofsliders 301 inserting intosliders 301 ofcutter shaft 30, the two ends ofrotary cutter 33 will be fixed byE rings 32 and be located oncutter shaft 30 and will no move along axis and radial direction. Therotary shaft 33 has sinecontinuous blades 332 and spacedcutters 33 corresponding to the sinecontinuous mold 221 and spacedcutting mold 222 of fixedcutter 22. - Please refer to FIG. 7,
feeding assembly 4 for feeding paper downward is disposed uponrotary cutter 33 and on the out side ofholder 2 and hasrotary shaft 40 coupled on left,right cutter frame feeding rollers 41 with sharp teeth fixed onrotary shaft 40. Whenrotary shaft 40 be driven by well-known drive mechanism to rotate, the sharp teeth offeeding roller 41 has the effect of pricking the paper to be cut and pulling it downward for shredder. - The present invention, after assembled, by cutting act similarly scissors that between rotary 33 and fixed
cutter 22 that give shearing force to cut paper to be cut in latitudinal direction, and corporate spacedcutter 333 and spacedcutting mold 222 to further cut paper strips that had been cut in latitudinal direction into paper chips C (as shown in FIG. 5) then realize the final object of cross-cut paper to be cut. - When said
rotary cutter 33 and fixedcutter 22 cut paper to be cut with an act by shearing force, to avoid blade material loss that resulted from rigid material sudden impact, saidwave spring 23 disposed upon fixedcutter 22 will act as a buffer, at the same time, thespring 23 bring continuously downward press to fixedcutter 22 to make the minimal clearance between fixedcutter 22 and rotary cutter 33 (the ideal clearance is zero), that is helpful to make cut act become more sharply and decrease the phenomena of raw edge of cut paper. - In the embodiment of the present invention, because the outline of rotary cutter and fixed
cutter 22 is designed as continuous sine wave so paper to be cut will be cut into countless sine waved paper chips C. Of course, the outline of sine wave may be changed into square wave or V-shaped wave according to the market need and would not be confined with the shape disclosed by the embodiment. - To sum up, the present invention is set a plurality of rotary cutter into cutter sliders to form a single rotary cutter, and use the shearing force that the rotary cutter and holder bring to paper to cut paper to be cut in latitudinal direction into countless paper chips to realize the object of cutting paper. The present invention satisfies the criterion for novelty. The present invention is proposed according-to related acts, it will be appreciated if this invention is granted patent right.
- In the present specification "comprises" means "includes or consists of" and "comprising" means "including or consisting of".
- The features disclosed in the foregoing description, or the following claims, or the accompanying drawings, expressed in their specific forms or in terms of a means for performing the disclosed function, or a method or process for attaining the disclosed result, as appropriate, may, separately, or in any combination of such features, be utilised for realising the invention in diverse forms thereof.
Claims (4)
- A single cutter shredder, comprising: cutter frame, holder, rotary cutter and feeding assembly, wherein:cutter frame comprises left, right frame and some latitudinal spacing rods;holder bestirred on said left, right cutter frame and has straight groove on the bottom for fixed cutter having sine wave continuous mold and spaced cutting mold inserting into, and has locating long holes on the left, right two sides, when fixed cutter insert into straight groove, fixed cutter be fixed on holder by fixed pin passing through said locating long hole, said holder has a wave spring in its straight groove and said wave spring disposed upon holders and enable fixed cutter move up and down in the region of locating long hole;rotary cutter comprises rotary cutter shaft, bushing, ring and a plurality of rotary cutter, the two ends of said rotary cutter are coupled on said bushing and then fixed on left, right cutter frame, cutter shaft has some sliders spaced disposed on its perimeter, slider has cooer-tailed groove in its inertia for preventing cutter shaft form falling out; wherein, corresponding to cutter shaft, after the cooer tail part of rotary cutter of sliders inserting into sliders of cutter shaft, the two ends of rotary cutter will be fixed by E rings and be located on cutter shaft and will no move along axis and radial direction; wherein, said rotary shaft has sine continuous blades and spaced cutters corresponding to the sine continuous mold and spaced cutting mold of fixed cutter;feeding assembly is disposed upon rotary cutter and on the outer side of holder, has rotary shaft coupled on left, right cutter frame and two feeding roller with sharp teeth.
- The single cutter shredder according to Claim 1, wherein the shape of continuous mold of holder is sine wave.
- The single cutter shredder according to Claim 1, wherein the shape of continuous mold of holder may be square wave, V-shaped wave or other proper shapes.
- The single cutter shredder according to Claim 1, wherein said rotary cutter has three sliders spaced 120 degree on the perimeter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03007687A EP1493488A1 (en) | 2003-04-03 | 2003-04-03 | Single cutter shredder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03007687A EP1493488A1 (en) | 2003-04-03 | 2003-04-03 | Single cutter shredder |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1493488A1 true EP1493488A1 (en) | 2005-01-05 |
Family
ID=33427031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03007687A Withdrawn EP1493488A1 (en) | 2003-04-03 | 2003-04-03 | Single cutter shredder |
Country Status (1)
Country | Link |
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EP (1) | EP1493488A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107225031A (en) * | 2017-07-19 | 2017-10-03 | 深圳万研科技研发有限公司 | The Chinese medicine that a kind of pharmaceutical factory of traditional Chinese medicine's use can screen big powder quickly smashes equipment |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3353754A (en) * | 1964-11-25 | 1967-11-21 | American Enka Corp | Process and apparatus for cutting synthetic polymer sheets into chips |
DE1922105A1 (en) * | 1969-04-30 | 1971-05-19 | Georg Busch | Sheeter |
GB1518844A (en) * | 1974-09-24 | 1978-07-26 | Hitachi Metals Ltd | Full rotation type sheet shearing machine |
US4244251A (en) * | 1978-04-24 | 1981-01-13 | Minolta Camera Kabushiki Kaisha | Full rotation-type paper web cutting device |
EP0111038A1 (en) * | 1982-12-02 | 1984-06-20 | COMPAGNIE CLAYTON Société dite: | Granulator for individual objects, especially of plastic material |
IT1221939B (en) * | 1987-07-02 | 1990-08-31 | Fima Spa | ROTARY BLADE CUTTING DEVICE IN PARTICULAR FOR CONTINUOUS MODULES |
DE4400297A1 (en) * | 1994-01-07 | 1995-07-13 | Eco Umwelttechnik Vertriebs Gm | Comminuting chamber with feeder, comminuting mechanism, and discharge |
US5445054A (en) * | 1993-09-21 | 1995-08-29 | R. J. Reynolds Tobacco Company | Sheet cutting apparatus and method |
-
2003
- 2003-04-03 EP EP03007687A patent/EP1493488A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3353754A (en) * | 1964-11-25 | 1967-11-21 | American Enka Corp | Process and apparatus for cutting synthetic polymer sheets into chips |
DE1922105A1 (en) * | 1969-04-30 | 1971-05-19 | Georg Busch | Sheeter |
GB1518844A (en) * | 1974-09-24 | 1978-07-26 | Hitachi Metals Ltd | Full rotation type sheet shearing machine |
US4244251A (en) * | 1978-04-24 | 1981-01-13 | Minolta Camera Kabushiki Kaisha | Full rotation-type paper web cutting device |
EP0111038A1 (en) * | 1982-12-02 | 1984-06-20 | COMPAGNIE CLAYTON Société dite: | Granulator for individual objects, especially of plastic material |
IT1221939B (en) * | 1987-07-02 | 1990-08-31 | Fima Spa | ROTARY BLADE CUTTING DEVICE IN PARTICULAR FOR CONTINUOUS MODULES |
US5445054A (en) * | 1993-09-21 | 1995-08-29 | R. J. Reynolds Tobacco Company | Sheet cutting apparatus and method |
DE4400297A1 (en) * | 1994-01-07 | 1995-07-13 | Eco Umwelttechnik Vertriebs Gm | Comminuting chamber with feeder, comminuting mechanism, and discharge |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107225031A (en) * | 2017-07-19 | 2017-10-03 | 深圳万研科技研发有限公司 | The Chinese medicine that a kind of pharmaceutical factory of traditional Chinese medicine's use can screen big powder quickly smashes equipment |
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