CN103551656B - Cutting of circle shear cutting apparatus and composite bush thereof - Google Patents
Cutting of circle shear cutting apparatus and composite bush thereof Download PDFInfo
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- CN103551656B CN103551656B CN201310483724.1A CN201310483724A CN103551656B CN 103551656 B CN103551656 B CN 103551656B CN 201310483724 A CN201310483724 A CN 201310483724A CN 103551656 B CN103551656 B CN 103551656B
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Abstract
The present invention provides a kind of cutting of circle shear cutting apparatus and composite bush thereof, and circle shear composite bush includes: hard lining, in the form of a ring structure, for being sheathed on the cutter shaft of circle shear regularly；Soft lining, is sheathed on the outside of described hard lining regularly, for when when cutting strip steel through rotary shears, makes the composite elastic deformation elastic deformation equal to disc shear edge of described hard lining and soft lining.The feature that the present invention has stable performance, reliability is high, presses against print to reducing circle shear, improves strip surface quality and has positive effect.
Description
Technical field
The invention belongs to steel rolling finishing equipment technical field, particularly to a kind of for cold-strip steel finishing
Cutting of circle shear cutting apparatus and composite bush thereof.
Background technology
At present, the cutting of circle shear cutting apparatus of cold-strip steel finishing system mainly includes that upper scissor blade, upper scissor blade are solid
Fixed set, lower scissor blade, lower scissor blade fixed cover and hydraulic nut locker.Wherein, lower scissor blade fixed cover,
Upper scissor blade fixed cover primarily serves the purpose of the location in circle shear work process.In strip steel shear history, by
By shear action, elastic deformation can be occurred in disc shear edge, strip steel also can be because of cutting edge edge district simultaneously
The shear action in territory and bend, circle shear fixed cover is mainly and plays support in strip steel bending region and make
With, to decompose steel edge portion region stress, thus ensure that strip steel is straight.
After annealing due to cold-strip steel, material is softer relatively thin, and during circle shear trimming, upper scissor blade is fixed
Overlap lower scissor blade fixed cover stress relatively big, but, in shear history, disc shear edge is made by shearing force
With there is elastic deformation, circle shear fixed cover, under the influence of steel edge portion active force, also occurs by a small margin
Elastic deformation.Because disc shear edge and the difference of fixed cover stress effect, and cutting edge and fixed cover
The difference of elastic deformation amplitude so that at circle shear upper scissor blade fixed cover, lower scissor blade and lower scissor blade fixed cover
There is relative deformation at handing-over interstitial site, so that strip steel generation bending deformation, cause waster.
PCT Patent Application (WOOO/51771A1) discloses the method and apparatus of a kind of slitting band,
Its device is a kind of cutting of circle shear cutting apparatus, and specifically discloses the bush structure of shear, but due to
The factors such as the material of its lining cause existing following problems: steel inner ring and the phase contrast of nylon outer ring be not tight,
Loosen and easily skid, circumferencial direction discontinuity, and then be easily caused because of steel lining and cutting of circle shear
Sword elastic deformation is inconsistent and causes edge bending defect.
Summary of the invention
It is an object of the invention to provide a kind of cutting of circle shear cutting apparatus and composite bush thereof, existing to solve
Technology exist due to when cutting edge and the inconsistent strip steel that causes of fixed cover elastic deformation are sheared it may happen that folding
The problem of bending deformation.
In order to solve the problems referred to above, the present invention provides a kind of circle shear composite bush, for as circle shear
The fixed cover of cutting edge, this composite bush includes hard lining and soft lining, wherein: hard lining, in
Circulus, for being sheathed on the cutter shaft of circle shear regularly；Soft lining, is sheathed on institute regularly
State the outside of hard lining, for when when cutting strip steel through rotary shears, make described hard lining and soft lining
Composite elastic deformation equal to the elastic deformation of disc shear edge；Described hard lining is sheathed is calculated as internal diameter
Φ 200mm, external diameter Φ 245mm；Described soft bushing design is internal diameter Φ 245mm, external diameter Φ 320mm；
Described hard lining is 100Cr steel, and described soft lining is MC nylon material；
The hardness of described MC nylon material is 80～90HPM (°)；The hardness of described 100Cr steel is
58～61HRC；
The outer end of described hard lining protrudes from the outer end of described soft lining so that described soft lining and circle
Gap is there is between dish cutting edge.
According to a kind of preferred implementation of above-mentioned circle shear composite bush, wherein, described hard lining
Outside is provided with annular corrugated so that described soft lining is more stably sheathed on described hard lining puts.
In order to solve the problems referred to above, the present invention provides a kind of cutting of circle shear cutting apparatus, it include upper scissor blade,
Lower scissor blade, upper cutter shaft, lower cutter shaft, provide the upper fixed cover that is used of location for described upper scissor blade and for institute
Stating the lower fixed cover that lower scissor blade provides location to be used, described upper scissor blade and fixed set are fixed on described
On upper cutter shaft, described lower scissor blade and described lower fixed cover are fixed on described lower cutter shaft, wherein, described on
Fixed cover and described lower fixed cover are any of the above-described described circle shear composite bush.
The feature that the present invention has stable performance, reliability is high, presses against print to reducing circle shear, improves strip steel
Surface quality has positive effect.It is particularly well-suited to strip steel cutting of circle shear cutting system.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the circle shear composite bush embodiment of the present invention；
Fig. 2 is the sectional structure schematic diagram in Fig. 1 along line A-A；
Fig. 3 is the structure for amplifying schematic diagram of local X in Fig. 2；
Fig. 4 is the cross section structure schematic diagram of hard lining in Fig. 2.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further details below in conjunction with the accompanying drawings.
The cut edge circle shear operating rate of cold rolled annealed strip steel is 260-300m/min, utilizes circle shear to shear
When device is sheared, mainly rotated trimming action by upper and lower cutting edge, during for ensureing to shear simultaneously
It is stable that strip steel is straight, uses upper and lower fixed cover to clamp strip steel.Therefore, as known, shear dress at circle shear
In putting, mainly include upper scissor blade, lower scissor blade, upper cutter shaft, lower cutter shaft, provide for upper scissor blade location to be used
Upper fixed cover and provide the lower fixed cover that is used of location for lower scissor blade, upper scissor blade and upper fixed cover are fixed
On upper cutter shaft, lower scissor blade and lower fixed cover are fixed on lower cutter shaft.In order to solve cutting edge with corresponding
The problem that fixed cover operationally elastic deformation is inconsistent, upper fixed cover and lower fixed cover all use composite lining
Nested structure, namely the circle shear composite bush embodiment shown in Fig. 1 and Fig. 2.
In the circle shear composite bush embodiment shown in Fig. 1 and Fig. 2, it includes hard lining 2 and soft
Matter lining 1.Hard lining 2 and soft lining 1 structure the most in the form of a ring, soft lining 1 is the most sheathed
Outside in hard lining 2.Wherein, hard lining 2 is used for being sheathed on regularly the cutter shaft of circle shear,
And fixed by bonded mode, as it can be seen, inside hard lining 2, it is provided with keyway (unmarked).Soft
Matter lining 1, for when when cutting strip steel through rotary shears, makes hard lining 2 and the composite elastic of soft lining 1
Deformation is equal to the elastic deformation of disc shear edge.
Different according to stress, it is preferable that in the upper fixed cover of cutting of circle shear cutting apparatus, hard lining 2 is
Steel, soft lining 1 is polyurethane material.In lower fixed cover, hard lining 2 is 100Cr steel,
Soft lining 1 is MC nylon material, it is highly preferred that the hardness of MC nylon material is 80～90HPM
(°)；The hardness of 100Cr steel is 58～61HRC.And, steel inner ring is with the phase contrast of nylon outer ring very
Closely, do not loosen non-slip, it is ensured that circumferencial direction uniform force.
Operationally, strip steel will extrude each fixed cover, especially descends fixed cover, in consideration of it, such as Fig. 3
Shown in, the outer end of hard lining 2 protrudes from the outer end of soft lining 1 so that soft lining 1 and circle shear
There is gap 12 between cutting edge, when soft lining 1 stress deformation, gap 12 can be to soft lining
Deformation space is provided.
More firm, such as Fig. 4, hard lining 2 in order to make to connect between hard lining 2 and soft lining 1
Outside be provided with annular corrugated 21.
In a detailed description of the invention, hard lining 2 can be designed as internal diameter Φ 200mm, external diameter
Φ245mm；Soft lining 1 is then designed as internal diameter Φ 245mm, external diameter Φ 320mm, it is ensured that shearing
During elastic deformation consistent with cutting edge elastic deformation, thus realize steel edge portion pincher eliminate.
That is, it is that (internal diameter is Φ 200mm to 100Cr steel matter, external diameter due to circle shear composite bush inner ring
For Φ 245mm), directly contact with the cutter shaft up and down of circle shear body, it is ensured that circle shear lining is in work
In combination stable.The circle shear composite bush position that contacts with the strip is that (internal diameter is MC nylon material
Φ 245mm, external diameter is Φ 320mm), it is ensured that the elastic deformation in shear history becomes with circle shear elasticity
Shape is consistent, thus realizes steel edge portion pincher and eliminate.
In sum, due to present invention application composite bush, select the position that contacts with the strip good for having
The soft lining of the multiple impact of resilience and anti-reflective, compared with steel metal, soft lining hardness is low,
Do not damage mill part, deformation can be realized under stress effect, and can ensure to connect with lining at disc shear edge
Tactile region realizes transition and supports, it is to avoid draw because steel lining and disc shear edge elastic deformation are inconsistent
Play edge bending defect.This utility model MC nylon-10 0Cr steel composite bush is simple and reasonable, makes
With effective, after being particularly suitable for annealing, the shearing of soft steel band uses.
As known by the technical knowledge, the present invention can be by other essence without departing from its spirit or essential feature
Embodiment realize.Therefore, embodiment disclosed above, for each side, is all to lift
Example illustrates, is not only.All within the scope of the present invention or within being equal to the scope of the present invention
Change and be all included in the invention.
Claims (3)
1. a circle shear composite bush, for the fixed cover as disc shear edge, this composite bush bag
Include hard lining and soft lining, wherein:
Hard lining, in the form of a ring structure, for being sheathed on the cutter shaft of circle shear regularly；
Soft lining, is sheathed on the outside of described hard lining regularly, at when cutting strip steel through rotary shears
Time, make the composite elastic deformation elastic deformation equal to disc shear edge of described hard lining and soft lining；
Described hard lining is sheathed is calculated as internal diameter Φ 200mm, external diameter Φ 245mm；
Described soft bushing design is internal diameter Φ 245mm, external diameter Φ 320mm；
It is characterized in that,
Described hard lining is 100Cr steel, and described soft lining is MC nylon material；
The hardness of described MC nylon material is 80～90HPM (°)；The hardness of described 100Cr steel is
58～61HRC；
The outer end of described hard lining protrudes from the outer end of described soft lining so that described soft lining and circle
Gap is there is between dish cutting edge.
Circle shear composite bush the most according to claim 1, it is characterised in that
The outside of described hard lining is provided with annular corrugated so that described soft lining is more stably sheathed on institute
State hard lining to put.
3. a cutting of circle shear cutting apparatus, including upper scissor blade, lower scissor blade, upper cutter shaft, lower cutter shaft, for institute
State upper scissor blade provide the upper fixed cover that is used of location and for described lower scissor blade provide that location is used lower fixing
Set, described upper scissor blade and fixed set be fixed on described upper cutter shaft, described lower scissor blade and described under
Fixed cover is fixed on described lower cutter shaft, it is characterised in that fixed set and described lower fixed cover are
The arbitrary described circle shear composite bush of claim 1-2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483724.1A CN103551656B (en) | 2013-10-15 | 2013-10-15 | Cutting of circle shear cutting apparatus and composite bush thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483724.1A CN103551656B (en) | 2013-10-15 | 2013-10-15 | Cutting of circle shear cutting apparatus and composite bush thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103551656A CN103551656A (en) | 2014-02-05 |
| CN103551656B true CN103551656B (en) | 2016-08-17 |
Family
ID=50006104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310483724.1A Active CN103551656B (en) | 2013-10-15 | 2013-10-15 | Cutting of circle shear cutting apparatus and composite bush thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103551656B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPP895899A0 (en) * | 1999-03-01 | 1999-03-25 | Bhp Steel (Ais) Pty Ltd | Slitting |
| JP2003251518A (en) * | 2002-02-28 | 2003-09-09 | Mitsubishi Heavy Ind Ltd | Side trimmer facility |
| JP2007136620A (en) * | 2005-11-18 | 2007-06-07 | Furukawa Sky Kk | Side trimming or slitting method for metal band |
| CN201625808U (en) * | 2010-03-14 | 2010-11-10 | 山西太钢不锈钢股份有限公司 | Novel disc shear |
| CN203495322U (en) * | 2013-10-15 | 2014-03-26 | 莱芜钢铁集团有限公司 | Circle shear shearing device and composite bush thereof |
-
2013
- 2013-10-15 CN CN201310483724.1A patent/CN103551656B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103551656A (en) | 2014-02-05 |
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Effective date of registration: 20210623 Address after: 271104 Shuangquan Road, Gangcheng District, Jinan City, Shandong Province Patentee after: LAIGANG GROUP YINSHAN SHAPED STEEL Co.,Ltd. Address before: 271104 No.99, Fuqian street, Gangcheng District, Laiwu City, Shandong Province Patentee before: Laiwu Steel Group Ltd. |