CN106694160A - Paper shredder double-edge cutting blade and machining process thereof - Google Patents
Paper shredder double-edge cutting blade and machining process thereof Download PDFInfo
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- CN106694160A CN106694160A CN201710019883.4A CN201710019883A CN106694160A CN 106694160 A CN106694160 A CN 106694160A CN 201710019883 A CN201710019883 A CN 201710019883A CN 106694160 A CN106694160 A CN 106694160A
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- Prior art keywords
- cutting edge
- knife
- cutting
- profile
- point
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
- B02C18/182—Disc-shaped knives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/001—Shaping combined with punching, e.g. stamping and perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/08—Dies with different parts for several steps in a process
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a paper shredder double-edge cutting blade and a machining process thereof. The cutting blade is machined and formed by a 125-250 T press machine stamping progressive die, an annular cutting edge punched by downwards pressing a coil cutter is used as an upper cutting edge, a leftover removal outline cutter is used for cutting the outline of a cutting blade body, a lower cutting edge is formed through stamping, and the paper shredder double-edge cutting blade with the two cutting edges is formed through machining. According to the paper shredder double-edge cutting blade and the machining process thereof, the design is reasonable, machining is convenient, the strength of the cutting blade can be effectively ensured, paper cutting and paper clamping are avoided, the production cost is effectively reduced, and machining resources are saved.
Description
Technical field
The present invention relates to shredder field, especially a kind of shredder double blade cutting edge and its processing technology.
Background technology
Shredder is combed by one group of blade of rotation, paper and drive motor is constituted.Paper is from the middle of the blade being mutually twisted
Feeding, is divided into many tiny scraps of paper, to reach the purpose of secrecy.Conventional crushing type shredder basic functional principle is
Be set on cutter shaft with cutting blade collocation spacer ring, using motor and mate gear device drive two groups it is parallel and rotate against
Cutter shaft pair, cut into fragment using the paper that will pass through of shearing force for being formed.
At present in industry, the cutting edge that cutting edge is typically put the first edge on a knife or a pair of scissors using one side, typically by 2 single dege blade speculars
And V-shaped is superimposed to form, reaching single dege blade both sides has the effect of cutting edge.The single dege blade being so superimposed, knife during superposition
There is gap between piece and blade, there is paperboard risk.Stack combinations at least need 2 blades, i.e., work in-process is, it is necessary to process
2 blades, processing cost is higher.
The content of the invention
The technical problem to be solved in the present invention is：Overcome deficiency in the prior art, there is provided a kind of reasonable in design, processing side
Just, can effectively ensure that cutting edge intensity, it is to avoid cut paper holding paper occurs, effectively reduce production cost, save the shredded paper of operation resource
Machine double blade cutting edge and its processing technology.
The technical solution adopted for the present invention to solve the technical problems is：A kind of shredder double blade cutting edge processes work
Skill, by 125T~250T forcing press stamping continuous die machine-shapings, the described progressive die includes that both sides are upper with guide pin bushing respectively
Mould bases and both sides have the lower mold holder of the guide pillar for coordinating grafting with guide pin bushing respectively, are sequentially provided with from top to bottom in the top mold frame solid
Fixed board backing plate, fixed plate, stripper backing plate and stripper, elastic connection between the fixed plate and stripper backing plate are described
Cavity plate backing plate and the concave template being arranged on cavity plate backing plate are then provided with lower mold holder, are set successively from left to right in described fixed plate
There are the location hole cutting knife through stripper backing plate and stripper, point of a knife stocking cutter, coil cutting knife, point of a knife angle push type broach, endoporus to cut
Knife and remove corner material profile cutting knife；
Processing technology is processed using the above-mentioned progressive die, is comprised the following steps：
A. raw material are put into bin, material strip are smoothed into levelling machine,
B. material strip enters progressive die correspondence location hole cutter, and location hole cutting knife is pushed and cuts out cutting edge technology hole,
C. material strip is delivered to the right at correspondence point of a knife stocking cutter, point of a knife stocking cutter push it is pre- cut out cutting edge point of a knife profile,
D. material strip continues to deliver to correspondence coil cutter to the right, and coil cutting knife is pushed goes out cutting edge ring shape cutting edge line
Ring,
E. material strip continues to deliver to the right at correspondence point of a knife angle push type broach, the downward punching press cutting edge point of a knife of point of a knife angle push type broach,
Point of a knife inclined-plane and inclined-plane cutting edge moulding,
F. material strip continues to deliver to correspondence endoporus cutter to the right, and endoporus cutting knife stamps out endoporus on cutting edge；
G. material strip continuation delivers to the right correspondence and goes heel profile cutter, goes heel profile cutting knife cutting cutting edge profile
And stamp out lower cutting edge.
Further, removing corner material profile cutting knife includes profile stocking cutter, fine cut profile knife, and material strip delivers to the right correspondence and removes pin
During material profile cutter, first pass through profile stocking cutter removal heel and cut out cutting edge profile, then fine cut profile knife is being protected downwards
After having protected ring shape cutting edge wire loop, lower cutting edge is cut out in the lump while fine cut cutting edge appearance and size.
Further, coil cutting knife is pushed and goes out ring shape cutting edge wire loop, and line width is 0.5mm~1mm, coil cutting knife punching press
Depth is 0.2mm~0.5mm.
The above-mentioned processing technology of correspondence, is designed with shredder double blade cutting edge, including cutting edge body, in cutting edge body
Center portion has the endoporus through cutting edge body, and cutting edge body side outer rim is circumferentially the upper sword of ring shape cutting edge wire loop formation
Mouthful, cutting edge body opposite side outer rim circumferentially has the lower cutting edge for going heel profile cutting knife to be stamped and formed out, the cutting edge body
Outer rim is circumferentially also evenly distributed with least two points of a knife, described point of a knife have with cutting edge body plane into the inclined-plane of angle,
Punch forming has inclined-plane cutting edge on inclined-plane.
In order to cost-effective, cutting edge body thickness is 2.5mm~5mm.
Further, cutting edge bulk material is Q235 steel or No. 45 steel, and cutting edge body surface hardness is at HRB80 °
To HRB95 °, the intensity of cutting edge is can effectively ensure that.
The beneficial effects of the invention are as follows：A kind of shredder double blade cutting edge and its processing technology that the present invention is provided, if
Meter is reasonable, easy to process, can effectively ensure that cutting edge intensity, it is to avoid cut paper holding paper occurs, and effectively reduces production cost, saves and adds
Wage source.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is the schematic diagram of the progressive die of the invention.
Fig. 2 is the structural representation of shredder double blade cutting edge of the present invention.
Fig. 3 is the side view of Fig. 2.
The stripper backing plate of 1. guide pin bushing, 2. top mold frame, 3. guide pillar, 4. lower mold holder, 5. fixed plate backing plate, 6. fixed plate 7. in figure
8. the point of a knife of 9. cavity plate backing plate of stripper, 10. concave template, 11. location hole cutting knife, 12. point of a knife stocking cutter, 13. coil cutting knife 14.
The endoporus cutting knife 16. of angle push type broach 15. is gone on the endoporus 19. of 17. cutting edge body of heel profile cutting knife 18. under cutting edge 20.
The inclined-plane cutting edge of 21. point of a knife of cutting edge, 22. inclined-plane, 23. cushion block 24.
Specific embodiment
Presently in connection with accompanying drawing and preferred embodiment, the present invention is further illustrated.These accompanying drawings are simplified signal
Figure, only illustrates basic structure of the invention in a schematic way, therefore it only shows the composition relevant with the present invention.
A kind of shredder double blade cutting knife machining process as shown in Figure 1 to Figure 3, by 125T~250T forcing press punching presses
Progressive die machine-shaping, the described progressive die includes that top mold frame 2 and both sides of the both sides respectively with guide pin bushing 1 have and guide pin bushing respectively
The lower mold holder 4 of 1 guide pillar 3 for coordinating grafting, is sequentially provided with fixed plate backing plate 5, fixed plate 6, unloads from top to bottom in the top mold frame 2
Flitch backing plate 7 and stripper 8, elastic connection between the fixed plate 6 and stripper backing plate 7 are then provided with described lower mold holder 4
Cavity plate backing plate 9 and the concave template 10 being arranged on cavity plate backing plate 9, the bottom of lower mold holder 4 can as needed be welded with cushion block 23, described
Fixed plate 6 on be sequentially provided with location hole cutting knife 11, point of a knife stocking cutter through stripper backing plate 7 and stripper 8 from left to right
12nd, coil cutting knife 13, point of a knife angle push type broach 14, endoporus cutting knife 15 and corner material profile cutting knife is removed；
Processing technology is processed using the above-mentioned progressive die, is comprised the following steps：
A. raw material are put into bin, material strip are smoothed into levelling machine,
B. material strip enters at progressive die correspondence location hole cutting knife 11, and location hole cutting knife 11 is pushed and cuts out cutting edge locating
Hole,
C. material strip is delivered to the right at correspondence point of a knife stocking cutter 12, and point of a knife stocking cutter 12 pushes pre- cutting out outside cutting edge point of a knife 21
Shape,
D. material strip continues to deliver to the right at correspondence coil cutting knife 13, and coil cutting knife 13 is pushed goes out cutting edge ring shape cutting edge
Wire loop, line width is 0.5mm~1mm, and the press depth of coil cutting knife 13 is 0.2mm~0.5mm,
E. material strip continues to deliver to the right at correspondence point of a knife angle push type broach 14, the downward punching press cutting edge knife of point of a knife angle push type broach 14
Point 21, the inclined-plane 22 of point of a knife 21 and inclined-plane cutting edge 24 are molded,
F. material strip continues to deliver to the right at correspondence endoporus cutting knife 15, and endoporus cutting knife 15 stamps out endoporus 18 on cutting edge；
G. material strip continuation is delivered to the right correspondence and is gone at heel profile cutting knife 16, goes heel profile cutting knife 16 cutting cutting edge
Profile simultaneously stamps out lower cutting edge 20.Removing corner material profile cutting knife includes profile stocking cutter, fine cut profile knife, and material strip delivers to the right correspondence
Go when at heel profile cutting knife 16, first pass through profile stocking cutter removal heel cut out cutting edge profile, then fine cut profile knife to
Under after ring shape cutting edge wire loop is protected, cut out lower cutting edge 20 in the lump while fine cut cutting edge appearance and size.
In processing, can be added according to the design of the progressive die and process requirements the step of set-up procedure c~f sequentially
Work, only need to finally show that there is ring shape cutting edge wire loop, lower surface to have the cutting edge of lower cutting edge 20 for upper surface.
The above-mentioned processing technology of correspondence, is designed with shredder double blade cutting edge, including cutting edge body 17, cutting edge body
17 thickness are 2.5mm~5mm.The material of cutting edge body 17 is Q235 or No. 45 steel, and the case hardness of cutting edge body 17 exists
HRB80 ° to HRB95 °, can effectively ensure that the intensity of cutting edge.The central part of cutting edge body 17 has through cutting edge body 17
Endoporus 28, the side outer rim of cutting edge body 17 is circumferentially the upper cutting edge 19 that ring shape cutting edge wire loop is formed, cutting edge body 17
Opposite side outer rim circumferentially has the lower cutting edge 20 for going heel profile cutting knife 16 to be stamped and formed out, the outer rim circumference of the cutting edge body 17
Also be evenly distributed with least two points of a knife 32, described point of a knife 32 have with the plane of cutting edge body 17 into the inclined-plane 22 of angle,
Punch forming has inclined-plane cutting edge 24 on inclined-plane 22.
A kind of shredder double blade cutting edge and its processing technology being so designed that, by the continuous film of reasonable design, punching
Pressure is easy to process, uses Q235 steel or No. 45 steel that cutting edge intensity is can effectively ensure that for raw material.By the ring for first cutting out
Cast cutting edge as upper cutting edge 19, after be stamped and formed out lower cutting edge 20, that is, process with double blade cutting edge substitution it is original 2
Single-edge cutter piece is superimposed out twolip, and double blade cutting edge centre is seamless, can avoid the situation that cut paper holding paper occurs.Inclined-plane cutting edge
24 can aid in cutting edge 19 and the cut paper shredded paper of lower cutting edge 20, improve shredder operating efficiency.And the thickness of cutting edge body 17 can be excellent
Elect 4mm as, alternative 2 thickness is the Single-edge cutter piece of 2mm, and the twolip cutter piece of 4mm is one time punching molded in the progressive die,
2 punching press expenses are needed relative to needing to process 2 Single-edge cutter pieces, twolip cutter piece only needs 1 punching press expense, can be effective
Production cost is reduced, operation resource is saved, with good economic prospect.
The above embodiments merely illustrate the technical concept and features of the present invention, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and be carried out that it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all cover within the scope of the present invention.
Claims (6)
1. a kind of shredder double blade cutting knife machining process, it is characterized in that：
By 125T~250T forcing press stamping continuous die machine-shapings, the described progressive die includes that both sides have guide pin bushing (1) respectively
Top mold frame (2) and both sides respectively have with guide pin bushing (1) coordinate grafting guide pillar (3) lower mold holder (4), the top mold frame (2)
On be sequentially provided with fixed plate backing plate (5), fixed plate (6), stripper backing plate (7) and stripper (8), the fixed plate from top to bottom
(6) elastic connection and stripper backing plate (7) between, is then provided with cavity plate backing plate (9) and is arranged on cavity plate on described lower mold holder (4)
Concave template (10) on backing plate (9), is sequentially provided with through stripper backing plate (7) and unloads from left to right in described fixed plate (6)
The location hole cutting knife (11) of flitch (8), point of a knife stocking cutter (12), coil cutting knife (13), point of a knife angle push type broach (14), endoporus cutting knife
(15) and corner material profile cutting knife (16) is gone；
Processing technology is processed using the above-mentioned progressive die, is comprised the following steps：
A. raw material are put into bin, material strip are smoothed into levelling machine,
B. material strip enters progressive die correspondence location hole cutting knife (11) place, and location hole cutting knife (11) is pushed and cuts out cutting edge locating
Hole,
C. material strip delivers to the right correspondence point of a knife stocking cutter (12) place, and point of a knife stocking cutter (12) pushes pre- cutting out outside cutting edge point of a knife
Shape,
D. material strip continues to deliver to correspondence coil cutting knife (13) place to the right, and coil cutting knife (13) is pushed goes out cutting edge ring shape cutting edge
Wire loop,
E. material strip continues to deliver to correspondence point of a knife angle push type broach (14) place to the right, point of a knife angle push type broach (14) the cutting edge knife of punching press downwards
Point, point of a knife inclined-plane and inclined-plane cutting edge moulding,
F. material strip continues to deliver to correspondence endoporus cutting knife (15) place to the right, and endoporus cutting knife (15) stamps out endoporus on cutting edge；
G. material strip continuation delivers to the right correspondence and goes to heel profile cutting knife (16) place, goes heel profile cutting knife (16) cutting cutting edge
Profile simultaneously stamps out lower cutting edge.
2. a kind of shredder double blade cutting knife machining process according to claim 1, it is characterized in that：Described goes corner material
Profile cutting knife (16) includes profile stocking cutter, fine cut profile knife, and material strip is delivered to the right when correspondingly going to heel profile cutting knife (16) place,
First pass through profile stocking cutter removal heel and cut out cutting edge profile, then fine cut profile knife is protecting ring shape cutting edge line downwards
After ring, lower cutting edge is cut out in the lump while fine cut cutting edge appearance and size.
3. a kind of shredder double blade cutting knife machining process according to claim 1, it is characterized in that：The coil cutting knife
(13) push and go out ring shape cutting edge wire loop, line width is 0.5mm~1mm, coil cutting knife press depth is 0.2mm~0.5mm.
4. shredder double blade cutting edge according to claim 1, it is characterized in that：Including cutting edge body (17), cutting knife
Piece body (17) central part has the endoporus (18) through cutting edge body, and cutting edge body (17) side outer rim is circumferentially ring
The upper cutting edge (19) that shape cutting edge wire loop is formed, cutting edge body (17) opposite side outer rim circumferentially has goes heel profile cutting knife (16)
The lower cutting edge (20) being stamped and formed out, the cutting edge body outer rim (17) is circumferentially also evenly distributed with least two points of a knife (21),
Described point of a knife (21) with cutting edge body (17) plane into the inclined-plane (22) of angle, there be tiltedly punch forming on inclined-plane (22)
Face cutting edge (24).
5. shredder double blade cutting edge according to claim 4, it is characterized in that：Described cutting edge body (17) thickness
It is 2.5mm~5mm.
6. shredder double blade cutting edge according to claim 4, it is characterized in that：Described cutting edge body (17) material
It is Q235 steel or No. 45 steel, cutting edge body (17) case hardness is at HRB80 ° to HRB95 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019883.4A CN106694160B (en) | 2017-01-12 | 2017-01-12 | A kind of shredder double blade cutting edge and its processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710019883.4A CN106694160B (en) | 2017-01-12 | 2017-01-12 | A kind of shredder double blade cutting edge and its processing technology |
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| CN106694160A true CN106694160A (en) | 2017-05-24 |
| CN106694160B CN106694160B (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710019883.4A Active CN106694160B (en) | 2017-01-12 | 2017-01-12 | A kind of shredder double blade cutting edge and its processing technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107398781A (en) * | 2017-08-30 | 2017-11-28 | 郑州华美彩印纸品有限公司 | A kind of blade for paper cutter technique for grinding |
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| CN1431064A (en) * | 2003-02-25 | 2003-07-23 | 黄铭玉 | Razor blade for shredding paper and its molding technique |
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| CN107398781A (en) * | 2017-08-30 | 2017-11-28 | 郑州华美彩印纸品有限公司 | A kind of blade for paper cutter technique for grinding |
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| CN106694160B (en) | 2019-02-15 |
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