CN203818436U - Material pulling pin - Google Patents
Material pulling pin Download PDFInfo
- Publication number
- CN203818436U CN203818436U CN201420175061.7U CN201420175061U CN203818436U CN 203818436 U CN203818436 U CN 203818436U CN 201420175061 U CN201420175061 U CN 201420175061U CN 203818436 U CN203818436 U CN 203818436U
- Authority
- CN
- China
- Prior art keywords
- runner
- pin
- pin head
- material pin
- plunger
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 47
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a material pulling pin. The material pulling pin comprises a material pulling pin body (5) and a pin head (8), wherein the pin head (8) is shaped as a circular table; the lower bottom surface of the circular table of the pin head (8) is fixed to the material pulling pin body (5); and a groove (7) is formed in the pin head (8). The material pulling pin is simple in structure; the current pin head is improved to be shaped as the circular table, so that the pin head is changed into the pin head which is small in front end and large in root, thus the blocking area of the pin head in the runner is small and uniform, thereby reducing the influence on the runner to be minimal; meanwhile, the groove is formed in the pin head, so that the material scraps are not easily pulled out when the pin head of the material pulling pin is separated from the runner, thereby reducing the poor forming rate of the product.
Description
Technical field
The utility model relates to die apparatus field, and especially one is drawn material pin.
Background technology
At present, injection mold industry, in the continuous technological innovation of experience and transformation, adopting in three template dies of point type sprue bush, is drawn material pin for the runner of hole irrigation oral area is temporarily fixed on to runner plate 4, and cast gate and shaped article is cut off.In prior art, drawing the fore-end of material pin is back-off shape, can be by the demoulding from point type sprue bush by force of the runner of hole irrigation oral area.
Figure 1 shows that in prior art, drawing in three template dies expected pin form, in three template dies, be fixed on fixed clamping plate 3 by drawing material pin briquetting 1 and bolt will draw material to sell, in the time that mould all pulls open, when fixed clamping plate 3 separates with runner plate 4, at this moment owing to drawing material pin 5 to be fixed on fixed clamping plate 3, runner plate 4 by runner 6 from drawing material pin 5 to pull.
But because plunger 801 of drawing material pin of the prior art is back-off shape (as shown in Figure 2), root is little greatly for head to draw material pin, and draw material pin in runner, larger for runner blocking-up sectional area ratio like this, and make the sectional area size of runner inhomogeneous, such structure is in the time running into the product that moulding material is hard and appearance requirement is high in addition, originally drew material pin in the time separating with runner pulling, easily pull-out material bits, and material bits enter in runner and will exert an influence to product appearance, strengthen the bad ratio of briquetting of product.
Summary of the invention
The purpose of this utility model be to provide a kind of simple in structure, on runner sectional area impact little and can ensure product appearance perfection draw material pin.
The utility model solves the technical scheme that prior art problem adopts: one is drawn material pin, comprises and draws material pin body and plunger; Described plunger is truncated cone-shaped, and the round platform bottom surface of described plunger is fixed on and draws on material pin body, and described plunger is provided with groove.
Between the groove that described plunger is provided with, be parallel to each other.
The beneficial effects of the utility model are: the utility model is simple in structure, and existing plunger is improved to truncated cone-shaped by it, make plunger become the little root of front end large, make plunger in runner to block area little and even.Just can drop to minimum for the impact of runner like this.And because plunger part is provided with groove, make to draw the plunger of material pin in the time separating with runner pulling, be not easy pull-out material bits, thereby reduced the bad ratio of briquetting of product.
Brief description of the drawings
Fig. 1 draws material pin connected construction schematic diagram in prior art three template dies.
Fig. 2 is the plunger of prior art and the syndeton schematic diagram of runner.
Fig. 3 is structural representation of the present utility model.
Fig. 4 is the syndeton schematic diagram of the utility model in three template dies.
Fig. 5 is the syndeton schematic diagram of plunger of the present utility model and runner.
In figure: 1-draws material pin briquetting, 2-bolt, 3-fixed clamping plate, 4-runner plate, 5-draws material pin body, 6-runner, 7-groove, 8-plunger, the plunger of 801-prior art.
Detailed description of the invention
Below in conjunction with the drawings and the specific embodiments, the utility model is described:
Fig. 5 is a kind of structural representation that draws material pin of the utility model.One is drawn material pin, comprises and draws material pin body 5 and plunger 8; Plunger 8 is truncated cone-shaped, and the round platform bottom surface of plunger 8 is fixed on and draws on material pin body 5, and plunger 8 is provided with the groove 7 being arranged in parallel.
Fig. 4 is the syndeton schematic diagram of the utility model in three template dies.Identical with the method for attachment of prior art, will draw material pin body 5 by drawing material pin briquetting 1 and bolt 2 to be fixed on fixed clamping plate 3, fixed clamping plate 3 can be movable with runner plate 4.Fig. 5 is the syndeton schematic diagram of plunger of the present utility model and runner.In the time that mould all pulls open, fixed clamping plate 3 separates with runner plate 4, at this moment owing to drawing material pin body 5 to be fixed on fixed clamping plate 3, and runner 6 is connected with the front end that draws material pin body 5 due to the plunger 8 with fluted 7, when but fixed clamping plate 3 separates with runner plate 4, runner plate 4 can be by runner 6 from drawing material pin body 5 to pull, at this moment runner 6 has a strong de-process with the groove 7 in plunger 8, the plunger 8 that makes to draw material pin is pulling while separating with runner 6, be not easy pull-out material bits, thereby reduced the bad ratio of briquetting of product.
Above content is in conjunction with concrete optimal technical scheme further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (2)
1. one kind is drawn material pin, comprises and draws material pin body (5) and plunger (8); It is characterized in that, described plunger (8) is truncated cone-shaped, and the round platform bottom surface of described plunger (8) is fixed on and draws material pin body (5) upper, and described plunger (8) is provided with groove (7).
2. one according to claim 1 is drawn material pin, it is characterized in that, between the groove (7) that described plunger (8) is provided with, is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175061.7U CN203818436U (en) | 2014-04-12 | 2014-04-12 | Material pulling pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175061.7U CN203818436U (en) | 2014-04-12 | 2014-04-12 | Material pulling pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203818436U true CN203818436U (en) | 2014-09-10 |
Family
ID=51473978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420175061.7U Expired - Fee Related CN203818436U (en) | 2014-04-12 | 2014-04-12 | Material pulling pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203818436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895001A (en) * | 2021-10-29 | 2022-01-07 | 歌尔科技有限公司 | Mold structure and injection molding product processing method |
-
2014
- 2014-04-12 CN CN201420175061.7U patent/CN203818436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113895001A (en) * | 2021-10-29 | 2022-01-07 | 歌尔科技有限公司 | Mold structure and injection molding product processing method |
| CN113895001B (en) * | 2021-10-29 | 2024-02-02 | 歌尔科技有限公司 | Mold structure and injection molding product processing method |
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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: 20140910 |