CN210701965U - Scrap iron-free scrap cutter - Google Patents
Scrap iron-free scrap cutter Download PDFInfo
- Publication number
- CN210701965U CN210701965U CN201921470968.5U CN201921470968U CN210701965U CN 210701965 U CN210701965 U CN 210701965U CN 201921470968 U CN201921470968 U CN 201921470968U CN 210701965 U CN210701965 U CN 210701965U
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- CN
- China
- Prior art keywords
- trimming
- lower die
- cutter
- scrap
- waste
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- 238000009966 trimming Methods 0.000 claims abstract description 76
- 239000002699 waste material Substances 0.000 claims abstract description 59
- 238000005520 cutting process Methods 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 230000007704 transition Effects 0.000 claims description 6
- 230000002452 interceptive effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
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- Punching Or Piercing (AREA)
Abstract
A scrap-free scrap cutter is used for cutting off scrap without generating scrap trimming scrap of a trimming die. The upper die trimming cutter is arranged on the upper die base, and the lower die waste cutter and the lower die trimming cutter are arranged on the lower die base; the cutting edge of the upper die trimming cutter is provided with a bulge at the waste cutting position; the position where the lower die waste cutter and the lower die trimming cutter are connected is triangular, the lower die waste cutter and the lower die trimming cutter are equal in height, and the distance between the vertex position of the lower die waste cutter and the lower die trimming cutting edge is L. The utility model discloses improve traditional waste material sword structure, will go up mould deburring blade waste material cutting position and change into the arch, lower mould waste material sword and lower mould deburring blade change into the height, and the shape of lower mould waste material sword changes triangle-shaped into, leaves one section distance with lower mould deburring blade. The structure ensures that the part can not be suspended on the trimming edge of the lower die, the part is completely sheared during working, the phenomenon of puncture is avoided, and the scrap is cut off while trimming, so that the scrap iron is avoided.
Description
Technical Field
The utility model relates to a punching press trimming die waste material cuts off technical field, specifically is a waste material sword that does not produce deburring iron fillings.
Background
As shown in fig. 14, the upper die trimming knife 1 of the trimming die winds the part 4 for one circle to trim the outer ring waste 7 of the part 4, and the trimmed circle of waste 7 is sheared into small sections by the lower die waste knife 2 and slides out of the die. As shown in fig. 1, an upper die trimming knife 1 of a conventional scrap knife has a breaking difference, a lower die scrap knife 2 is lower than a lower die trimming knife 3, a contact position 2-1 between the upper die trimming knife 1 and the lower die trimming knife 3 has a height difference, a part 4 is suspended at the contact position 2-1 between the two knives, due to the breaking difference of the upper die trimming knife 1, when trimming is performed, as shown in fig. 2, a situation of successively cutting is present, a phenomenon that an upper die trimming edge cut first is suspended at the contact position 2-1 between the two knives to puncture the part 4 can be generated, a tearing burr 5 as shown in fig. 3 can be generated, the upper die trimming edge cut later is subjected to secondary shearing and scraping in the continuous shearing process as shown in fig. 4, so that scrap iron 6 is formed, and the cut scrap 7 naturally slides out of the die.
With the high-speed development of the automobile industry, the automobile outer covering part is more and more automatically produced, due to a closed modular production system, scrap iron 6 generated by a trimming die cannot be manually removed in time like a manual production line, is easily magnetized and adhered to the surface of the part 4 and is conveyed and processed along with the part 4, an indentation is left on the part 4, the appearance quality of the part 4 is damaged, if the part 4 is not found in time, the large-batch scrapping of the part 4 can be caused, and the loss is caused to a punching production enterprise. 90% of scrap iron generated by the trimming die is at the position of the scrap cutter, and the structural form of the scrap cutter becomes a key factor for avoiding scrap iron generation.
Disclosure of Invention
In order to avoid scrap iron generated by the trimming die at the position of the scrap cutter, the invention aims to provide a scrap iron-free scrap cutter so as to avoid scrap iron trimming.
In order to realize the purpose, the upper die trimming knife of the utility model is arranged on the upper die base, and the lower die waste knife and the lower die trimming knife are arranged on the lower die base; the cutting edge of the upper die trimming cutter is provided with a bulge at the waste cutting position; the position where the lower die waste cutter and the lower die trimming cutter are connected is triangular, the lower die waste cutter and the lower die trimming cutter are equal in height, and the distance between the vertex position of the lower die waste cutter and the lower die trimming cutting edge is L.
The convex position of the upper die trimming knife is 8-10 mm higher than the periphery, one side of the bulge is provided with a convex cutting edge for trimming, and the other side of the bulge is in smooth transition with the upper die trimming knife so as to realize that the part is extruded towards the vertex position of the lower die waste knife due to the convex molded surface; the smooth transition part consists of a first trapezoidal inclined plane, a second trapezoidal inclined plane and a third trapezoidal inclined plane; the upper die trimming cutter is provided with a groove which is used for not interfering with the lower die waste cutter during trimming.
And the distance L between the vertex position of the lower die waste cutter and the trimming cutting edge of the lower die is 3-5 mm.
The upper die trimming knife is provided with an upper die trimming cutting edge and an upper die waste cutting edge, the lower die trimming knife is provided with a lower die trimming cutting edge, and the lower die waste knife is provided with a lower die waste cutting edge.
Compared with the prior art, the utility model, improve traditional waste material sword structure, will go up mould deburring blade waste material and cut off the position and change into the arch, lower mould waste material sword and lower mould deburring blade change into equal height, and the shape of lower mould waste material sword changes triangle-shaped, leaves one section distance with lower mould deburring blade. The structure ensures that the part can not be suspended on the trimming edge of the lower die, the part is completely sheared during working, the phenomenon of puncture is avoided, and the scrap is cut off while trimming, so that the scrap iron is avoided.
Drawings
Fig. 1 is a schematic view of a conventional scrap knife.
FIG. 2 is a drawing of a conventional scrap knife marking with a first and second cut.
Fig. 3 is a diagram of burr formation during operation of a conventional scrap knife.
FIG. 4 is a drawing showing the formation of iron pieces when the conventional scrap cutter is operated.
Fig. 5 is a schematic view of the present invention.
Fig. 6 is a combination view of the lower die trim blade and the lower die scrap blade of fig. 5.
Fig. 7 is an enlarged view of I-I of fig. 6.
Fig. 8 is a schematic view of the upper die trim blade of fig. 5.
Fig. 9 is a top combination view of the upper die trim blade, the lower die scrap blade, and the lower die trim blade 3 of fig. 5.
Fig. 10 is a working state diagram of the present invention.
Fig. 11 is an enlarged view of II-II of fig. 10.
Fig. 12 is a diagram illustrating the operation of trimming and cutting off the parts according to the present invention.
Fig. 13 is an enlarged view of III-III of fig. 12.
Fig. 14 is a schematic view of the trimming die structure.
Detailed Description
As shown in fig. 5, 6, 7, 8, 9, 10, 11, 12 and 13, the upper die trimming blade 1 of the present invention is mounted on the upper die base, and the lower die scrap blade 2 and the lower die trimming blade 3 are mounted on the lower die base 8; the cutting edge of the upper die trimming knife 1 is provided with a bulge 1-1 at the waste cutting position, the position of the bulge 1-1 is 8mm-10mm higher than the periphery of the waste cutting position, one side of the bulge 1-1 is provided with a bulge cutting edge 1-1-1 to realize trimming, the other side of the bulge 1-1 is in smooth transition with the upper die trimming knife 1 to realize that a part 4 is extruded towards the vertex 2-1-1 position of the lower die waste knife 2 due to the molded surface of the bulge 1-1, the smooth transition part consists of a trapezoidal inclined plane I1-1-2, a trapezoidal inclined plane II 1-1-3 and a trapezoidal inclined plane III 1-1-4, and the upper die trimming knife 1 is provided with a groove 1-4 for not interfering with the lower die waste knife 2 during; the joint position 2-1 of the lower die waste cutter 2 and the lower die trimming cutter 3 is triangular, the lower die waste cutter 2 and the lower die trimming cutter 3 are equal in height, the part 4 cannot be suspended during trimming, and the distance L between the vertex 2-1-1 position of the lower die waste cutter 2 and the lower die trimming cutting edge 3-1 is 3mm-5 mm.
The utility model discloses an upper die deburring sword 1 has upper die deburring blade 1-2 and goes up the mould waste material and cut off blade 1-3, and lower mould deburring sword 3 has lower mould deburring blade 3-1, and lower mould waste material sword 2 has lower mould waste material and cuts off blade 2-2. When the trimming device works, the upper die trimming cutting edge 1-2 and the lower die trimming cutting edge 3-1 are occluded, and redundant waste materials of the part 4 are trimmed; and the upper die waste material cutting edge 1-3 is occluded with the lower die waste material cutting edge 2-2 to cut off the repaired waste material.
During operation, as shown in fig. 11, the bulge 1-1 of the upper die trimming knife 1 firstly contacts the part 4 to trim the part 4-1, and meanwhile, the profile of the bulge on the bulge 1-1 extrudes the waste material 4-2 which is just trimmed to the top 2-1-1 position of the lower die waste material knife 2, so that the waste material at the 4-3 position on the waste material 4-2 which is just trimmed is transversely sheared; as shown in fig. 12, the upper die trimming blade 1 continues to descend, the scrap at 4-3 is completely cut off by the vertex 2-1-1 position of the lower die scrap blade 2 due to the action of the bulge 1-1, meanwhile, the scrap at the first 7-1 position and the scrap at the second 7-2 position of the scrap 7 are also trimmed off and separated from the part 4, the scrap at the third 7-3 position of the scrap 7 is cut off, and finally, the scrap 7 naturally slides out of the die.
Claims (4)
1. The utility model provides a no iron fillings waste material sword which characterized in that: the upper die trimming cutter (1) is arranged on the upper die base, and the lower die waste cutter (2) and the lower die trimming cutter (3) are arranged on the lower die base (8); the cutting edge of the upper die trimming knife (1) is provided with a bulge (1-1) at the waste cutting position; the position (2-1) where the lower die waste cutter (2) and the lower die trimming cutter (3) are connected is triangular, the lower die waste cutter (2) and the lower die trimming cutter (3) are equal in height, and the distance between the vertex (2-1-1) of the lower die waste cutter (2) and the lower die trimming cutting edge (3-1) is L.
2. The scrap-free knife according to claim 1, wherein: the position of a bulge (1-1) of the upper die trimming knife (1) is higher than the periphery by 8-10 mm, one side of the bulge (1-1) is provided with a bulge cutting edge (1-1-1) for trimming, and the other side of the bulge is in smooth transition with the upper die trimming knife (1), so that a part (4) is extruded to the top point (2-1-1) of the lower die waste knife (2) due to the molded surface of the bulge (1-1); the smooth transition part consists of a first trapezoidal inclined plane (1-1-2), a second trapezoidal inclined plane (1-1-3) and a third trapezoidal inclined plane (1-1-4); the upper die trimming knife (1) is provided with a groove (1-4) which is used for not interfering with the lower die waste knife (2) during trimming.
3. The scrap-free knife according to claim 1, wherein: the distance L between the vertex (2-1-1) of the lower die waste cutter (2) and the lower die trimming cutting edge (3-1) is 3mm-5 mm.
4. The scrap-free knife according to claim 1, wherein: the upper die trimming knife (1) is provided with an upper die trimming cutting edge (1-2) and an upper die waste cutting edge (1-3), the lower die trimming knife (3) is provided with a lower die trimming cutting edge (3-1), and the lower die waste knife (2) is provided with a lower die waste cutting edge (2-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921470968.5U CN210701965U (en) | 2019-09-05 | 2019-09-05 | Scrap iron-free scrap cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921470968.5U CN210701965U (en) | 2019-09-05 | 2019-09-05 | Scrap iron-free scrap cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210701965U true CN210701965U (en) | 2020-06-09 |
Family
ID=70956877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921470968.5U Active CN210701965U (en) | 2019-09-05 | 2019-09-05 | Scrap iron-free scrap cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210701965U (en) |
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2019
- 2019-09-05 CN CN201921470968.5U patent/CN210701965U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Scrap knife without iron filings Effective date of registration: 20231018 Granted publication date: 20200609 Pledgee: China Postal Savings Bank Co.,Ltd. Xiangyang Branch Pledgor: XIANGYANG SUNRISE MACHINERY Co.,Ltd. Registration number: Y2023980061691 |