CN204503947U - Punching stretch mould structure - Google Patents
Punching stretch mould structure Download PDFInfo
- Publication number
- CN204503947U CN204503947U CN201420743989.0U CN201420743989U CN204503947U CN 204503947 U CN204503947 U CN 204503947U CN 201420743989 U CN201420743989 U CN 201420743989U CN 204503947 U CN204503947 U CN 204503947U
- Authority
- CN
- China
- Prior art keywords
- mould structure
- die
- plastic film
- punching stretch
- polyethylene plastic
- 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 - Fee Related
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- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The utility model relates to a kind of mould structure, especially a kind of punching stretch mould structure; Comprise die and punch, described part, between die and punch, is provided with polyethylene plastic film between described die and part, and the both sides in described mold work district are equipped with a conveying roller, and described polyethylene plastic film is through described conveying roller; Punching stretch mould structure of the present utility model has that stripping result is good, low cost and raising part product quality.
Description
Technical field
The utility model relates to a kind of mould structure, especially a kind of punching stretch mould structure.
Background technology
In part drawing process, the bad phenomenon such as part generation is wrinkling, cracking, uneven distribution, surface scratch, being generally when stretching now, adopting necessary lubrication, be conducive to carrying out smoothly of drawing process, stretching wall is thinning to improve.But must be noted that, lubricant can only be coated in the working surface of die, and can not lubricate in the face of punch and material, because be belong to favorable friction between punch and part blank surface, it can prevent, and material from sliding, drawing crack and thinning.This kind of process can effectively reduce in part drawing process, the bad phenomenon such as part generation is wrinkling, cracking, uneven distribution, surface scratch, but this kind of method still exists following deficiency:
1. due to punch having lubricant, piece surface just may produce greasy dirt, affects product surface cleannes;
2. lubricant quantity is not easily controlled and brushing lubricant is uneven, and part stretching quality state may be caused unstable;
3. because piece surface just may produce greasy dirt, cleaning link may be increased, thus increase cost of parts.
4., because each part needs brushing lubricant on mould, part production efficiency is relatively low;
5. lubricant cost is relatively high.
Utility model content
The utility model provides that a kind of stripping result is good, the punching stretch mould structure of low cost and raising part product quality.
To achieve these goals, the utility model adopts following technical scheme:
Punching stretch mould structure, comprises die and punch, and described part, between die and punch, is provided with polyethylene plastic film between described die and part, and the both sides in described mold work district are equipped with a conveying roller, and described polyethylene plastic film is by described conveying roller.
Preferably, described each conveying roller is equipped with a pressure roller.
Preferably, described polyethylene plastic film width leaves surplus according to the appearance and size of part, and described surplus is at least 40mm.
Owing to have employed said structure, the lubricant that polyethylene plastic film replaces former traditional releasing process to use, polyethylene plastic film is covered between die and part, reduce the frictional force between Extrude Face and die by the slip of polyethylene plastic film, thus reach the generation preventing the bad phenomenon such as part generation is wrinkling, cracking, uneven distribution, surface scratch.Conveying roller and pressure roller effectively can carry polyethylene plastic film, prevent polyethylene plastic film fold, make operating personnel's handled easily.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model punching stretch mould structure embodiment;
Fig. 2 is that A in Fig. 1 is to schematic diagram.
Detailed description of the invention
As shown in Figure 1-2, the punching stretch mould structure of the utility model embodiment, comprise die 1 and punch 2, part 3 is between die 1 and punch 2, polyethylene plastic film 4 above part 3 stamping surface, the below of stamping cavity die 1, the both sides of mould are respectively arranged with a pair conveying roller 5 and pressure roller 6, and polyethylene plastic film 4 is between conveying roller 5 and pressure roller 6, reduce the frictional force between Extrude Face and die 1 by the slip of polyethylene plastic film 4, thus reach prevent part 3 wrinkling, cracking.Conveying roller 5 and pressure roller 6 all support by respective independent rack, polyethylene plastic film 4 width leaves surplus 40mm according to the appearance and size of part 3, the object leaving surplus is in order to more effective conveying polyethylene plastic film 4, drives polyethylene plastic film 4 to make it carry by its surplus.Piece surface cleans, can not postpartum because making the greasy dirt with lubricator brought, part all directions are even, part stretching steady quality.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model description and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. punching stretch mould structure, comprises die and punch, and part, between die and punch, is characterized in that: be provided with polyethylene plastic film between described die and part, and the both sides in mold work district are equipped with a conveying roller.
2. punching stretch mould structure as claimed in claim 1, is characterized in that: described each conveying roller is equipped with a pressure roller.
3. punching stretch mould structure as claimed in claim 1, is characterized in that: described polyethylene plastic film width leaves surplus according to the appearance and size of part, and described surplus is at least 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743989.0U CN204503947U (en) | 2014-12-01 | 2014-12-01 | Punching stretch mould structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420743989.0U CN204503947U (en) | 2014-12-01 | 2014-12-01 | Punching stretch mould structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204503947U true CN204503947U (en) | 2015-07-29 |
Family
ID=53701951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420743989.0U Expired - Fee Related CN204503947U (en) | 2014-12-01 | 2014-12-01 | Punching stretch mould structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204503947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113560414A (en) * | 2021-07-22 | 2021-10-29 | 浙江道和机械股份有限公司 | Stretching method for preventing stretching piece from cracking |
-
2014
- 2014-12-01 CN CN201420743989.0U patent/CN204503947U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113560414A (en) * | 2021-07-22 | 2021-10-29 | 浙江道和机械股份有限公司 | Stretching method for preventing stretching piece from cracking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20171201 |