CN2822821Y - Bursting knife - Google Patents
Bursting knife Download PDFInfo
- Publication number
- CN2822821Y CN2822821Y CN 200520122026 CN200520122026U CN2822821Y CN 2822821 Y CN2822821 Y CN 2822821Y CN 200520122026 CN200520122026 CN 200520122026 CN 200520122026 U CN200520122026 U CN 200520122026U CN 2822821 Y CN2822821 Y CN 2822821Y
- Authority
- CN
- China
- Prior art keywords
- breaking cutter
- binder block
- blade
- product
- tool rest
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a kind of breaking cutter, wherein, described breaking cutter comprises tool rest (3), binder block (5) and blade (4), and blade (4) is connected on the binder block (5), binder block (5) is fixed on the tool rest (3), and blade (4) is for taper and have pointed end.Described breaking cutter can be pushed down the zone that is punctured after puncturing product, make this zone form local buckling, the material that is punctured in the zone is flowed keep in balance, and can not make product wrinkling, thereby can guarantee the quality of drawing of product.And the breaking cutter that the utility model provides only is assemblied on the upper bolster, do not need as making the cutting edge on the upper and lower die holder cooperate manufacturing in the prior art, also do not need to guarantee two gaps between the cutting edge, therefore described breaking cutter also has the easy advantage of processing.
Description
Technical field
The utility model relates to the diel field, more particularly, relates to the breaking cutter that uses in a kind of diel.
Background technology
Drawing is a kind of in the Sheet Metal Forming Technology, is to utilize the extension of the material that is positioned at the punch bottom and a kind of Sheet Metal Forming Technology of straight woolen cloth or operation part being become curved surface shaped.As shown in Figure 1, in the process of drawing, for the A place that makes product 10 forms bending, then the material at B place will flow to the A place, and the material at B place will attenuation so.When the amount of plastic deformation of B place material surpassed its greatest limit, the B place of product 10 will be pulled open.If product 10 is pulled open in drawing process, the forming shape of product will be affected so, so just is difficult to guarantee the quality of product.So in the zone that might be pulled open on the product is again under the situation of garbage area simultaneously, in the actual production normally the corresponding position on mould install breaking cutter additional, initiatively to puncture the described zone on the product, thereby make material can reach rational plastic deformation, and need on product swimmingly to expect that many zones are mobile.
The breaking cutter that uses in the prior art comprises breaking cutter 1 and following breaking cutter 2 as shown in Figure 2, and last breaking cutter 1 and following breaking cutter 2 are separately fixed on upper bolster 7 and the die shoe 8.When last breaking cutter 1 moves down when contacting with following breaking cutter 2, the product 10 between upper and lower mould will be sheared and puncture.There are not similar binder block or holding pad etc. that it is pushed down owing to be punctured the material in zone, so when the amount of flow of material was big, it was mobile unbalanced to be easy to occur material, thereby can make product wrinkling, has a strong impact on the quality of drawing of product.In addition, the manufacturing because the upper and lower breaking cutter of existing breaking cutter will cooperatively interact, breaking cutter need be through the reconditioning of long period, and want to guarantee that upper and lower breaking cutter is combined together the gap of back between them evenly and be not easy, therefore existing breaking cutter also exists the shortcoming that is not easy to process.
The utility model content
The purpose of this utility model provides a kind of material of can avoiding puncturing behind the product and flows unbalancedly, guarantees that product draws quality, and the breaking cutter of being convenient to process.
The breaking cutter that the utility model provides comprises tool rest 3, binder block 5 and blade 4.Blade 4 is connected on the binder block 5, and binder block 5 is fixed on the tool rest 3.Blade 4 is for taper and have pointed end.
The breaking cutter that the utility model provides is after puncturing product, can push down the zone that is punctured, make this zone form local buckling, the material that is punctured in the zone is flowed keep in balance, can not make product wrinkling, thereby can guarantee the quality of drawing of product.And the breaking cutter that the utility model provides only is assemblied on the upper bolster, do not need as making the cutting edge on the upper and lower die holder cooperate manufacturing in the prior art, also do not need to guarantee two gaps between the cutting edge, so the breaking cutter that the utility model provides also has the easy advantage of processing.
Description of drawings
The schematic diagram that Fig. 1 draws for product;
Fig. 2 is the schematic diagram of the breaking cutter of prior art;
The schematic diagram of the breaking cutter that Fig. 3 provides for the utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
The breaking cutter that the utility model provides comprises tool rest 3, binder block 5 and blade 4, as shown in Figure 3, blade 4 is connected on the binder block 5 by various known modes, as by weld, directly allocate into, hanging platform is bumped into, monoblock cast etc., preferably forms integrative-structure by monoblock cast.Binder block 5 is fixed on the tool rest 3 by various known modes, as be bumped into, directly allocate into by welding, hanging platform, monoblock cast etc., preferably form integrative-structure by monoblock cast.Tool rest 3 is fixed on the upper bolster 7 by various known modes, as being bumped into, directly allocating into by screw, hanging platform etc., preferably fixes by screw.Under the preferred situation, tool rest 3, binder block 5 and blade 4 form integrative-structure by casting.
Wherein, tool rest 3 can be the various bulks of being convenient to be fixed on the upper bolster 7.Blade 4 is for taper and have pointed end.Described top is the points that utilize 30 degree angles, carries out according to actual needs that reconditioning forms, as long as its sharp-pointed degree guarantees to puncture product 10.Binder block 5 can be various bulks as required, as hexahedron, cylinder, oval cylinder, prism etc., is preferably cuboid.The part that is connected between binder block 5 and the tool rest 3 is the cambered surface that seamlessly transits, the part that is connected between binder block 5 and the blade 4 is the cambered surface that seamlessly transits, the degree of crook of described cambered surface can be decided as required, as long as guarantee between binder block 5 and the tool rest 3 and can seamlessly transit between binder block 5 and the blade 4.The edge 6 on the surface of the connection blade 4 of binder block 5 is a curved surface, and the degree of crook of curved surface can be decided as required, as long as can seamlessly transit between the orthogonal in twos surface in that guarantee binder block 5 and the product 10 contacted surfaces.
When the breaking cutter that provides when the utility model is used for drawing die, can at first tool rest 3 be fixed on the upper bolster 7, so that whole breaking cutter is fixed on the upper bolster 7 by screw.In the process of drawing, breaking cutter is along with upper bolster 7 moves down together, and when product 10 that blade 4 touches between upper die and lower die, product will be punctured.Simultaneously along with breaking cutter continue move down, binder block 5 will be pushed down the material that is punctured the zone, and make this zone form downward local buckling.Therefore binder block 5 has not only played the effect of binder, and the curved surface of binder block 5 edges 6 also is equivalent to bead, has played the effect of resistance material.Thereby play the better controlled effect for material mobile, made material can reach rational plastic deformation, and smooth and easy and need on product balancedly to expect that many zones flow, solve the wrinkling problem of product, and then guaranteed the quality of drawing of product.
Claims (6)
1. a breaking cutter is characterized in that, described breaking cutter comprises tool rest (3), binder block (5) and blade (4), and blade (4) is connected on the binder block (5), and binder block (5) is fixed on the tool rest (3).
2. breaking cutter according to claim 1, wherein, described tool rest (3), binder block (5) and blade (4) are integrative-structures.
3. breaking cutter according to claim 1 and 2, wherein, the edge (6) on the surface of the connection blade (4) of described binder block (5) is a curved surface.
4. breaking cutter according to claim 1 and 2, wherein, the part that is connected between described binder block (5) and the tool rest (3) is the cambered surface that seamlessly transits.
5. breaking cutter according to claim 1 and 2, wherein, the part that is connected between described binder block (5) and the blade (4) is the cambered surface that seamlessly transits.
6. breaking cutter according to claim 1, wherein, described blade (4) is for taper and have pointed end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122026 CN2822821Y (en) | 2005-09-23 | 2005-09-23 | Bursting knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520122026 CN2822821Y (en) | 2005-09-23 | 2005-09-23 | Bursting knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2822821Y true CN2822821Y (en) | 2006-10-04 |
Family
ID=37031935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520122026 Expired - Lifetime CN2822821Y (en) | 2005-09-23 | 2005-09-23 | Bursting knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2822821Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554965A (en) * | 2010-12-27 | 2012-07-11 | 上海新安汽车隔音毡有限公司 | Tool for punching mould |
| CN106077291A (en) * | 2016-06-29 | 2016-11-09 | 安徽汇展热交换系统股份有限公司 | A kind of general main leaf of radiator punctures mould |
-
2005
- 2005-09-23 CN CN 200520122026 patent/CN2822821Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554965A (en) * | 2010-12-27 | 2012-07-11 | 上海新安汽车隔音毡有限公司 | Tool for punching mould |
| CN106077291A (en) * | 2016-06-29 | 2016-11-09 | 安徽汇展热交换系统股份有限公司 | A kind of general main leaf of radiator punctures mould |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20061004 |
|
| EXPY | Termination of patent right or utility model |