CN204095063U - A kind of double-shot moulding part polypropylene thermal runner running gate system - Google Patents
A kind of double-shot moulding part polypropylene thermal runner running gate system Download PDFInfo
- Publication number
- CN204095063U CN204095063U CN201420410647.7U CN201420410647U CN204095063U CN 204095063 U CN204095063 U CN 204095063U CN 201420410647 U CN201420410647 U CN 201420410647U CN 204095063 U CN204095063 U CN 204095063U
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- runner
- double
- moulding part
- shot moulding
- gate system
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Abstract
A kind of double-shot moulding part polypropylene thermal runner running gate system, comprise sprue (1), it is characterized in that: runner (2) is hemispherical, the angle of cast gate (3) both sides, cross section crest line (4) is 90 °.The diameter of described cast gate (3) is 1.5mm.The radius of described runner (2) is 14mm.The length of described runner (2) and cast gate (3) is 20mm.The diameter of described sprue (1) is 35mm.The overall length of described sprue (1), runner (2), cast gate (3) is 114mm.The design effectively reduces the length of cast runner, and plastic residual stress is low, it is little, with short production cycle to be out of shape, save flow channel material.
Description
Technical field
The design relates to double-shot moulding part polypropylene thermal runner running gate system, belongs to injection molding technology field.
Background technology
In actual production, the design of System of Injection Moulding generally will consider from several aspect such as optimization, the quality requirement of product, the exhaust gas conditions of mould of the mobility of plastics and cooling velocity thereof, mould structure design.For the plastic raw materials polypropylene that double-shot moulding part mould uses, hold yielding denominator after there is the large and product demoulding of fast, washing shrinkage cool time, use hot flow path running gate system to be best design.On the one hand, use TOP-TIP can farthest reduce cast runner length, and after the product demoulding residual stress low, be out of shape little; On the other hand, the automaticity of injection moulding production can be improved, shorten the production cycle, save flow channel material.
Summary of the invention
According to above-mentioned polyacrylic characteristic, the design provides a kind of double-shot moulding part polypropylene thermal runner running gate system, to meet above-mentioned requirements.
For achieving the above object, the design is realized by following technological means:
A kind of double-shot moulding part polypropylene thermal runner running gate system, comprises sprue 1, it is characterized in that: runner 2 is hemispherical, and the angle of both sides, cast gate 3 cross section crest line 4 is 90 °.
Preferred:
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the diameter of described cast gate 3 is 1.5mm.
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the radius of described runner 2 is 14mm.
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the length of described runner 2 and cast gate 3 is 20mm.
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the diameter of described sprue 1 is 35mm.
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the overall length of described sprue 1, runner 2, cast gate 3 is 114mm.
The invention has the beneficial effects as follows: the design effectively reduces the length of cast runner, plastic residual stress is low, it is little, with short production cycle to be out of shape, save flow channel material.
Accompanying drawing explanation
Fig. 1 is the design's structural representation.
The implication of drawing reference numeral is as follows: 1 sprue, 2 runners, 3 cast gates, 4 runner section both sides crest lines.
Detailed description of the invention
Below in conjunction with Figure of description, design is further described.
As shown in Figure 1, a kind of double-shot moulding part polypropylene thermal runner running gate system, comprises sprue 1, it is characterized in that: runner 2 is hemispherical, and the angle of both sides, cast gate 3 cross section crest line 4 is 90 °.
Runner 2 adopts hemispherical, and plastics can be made to quickly flow into die cavity, shortens injection cycle; Both sides, cast gate 3 cross section crest line 4 adopts the angle of 90 °, while guarantee injection moulding efficiency, can reduce gate size, improve the fineness on injection machine surface further.
The selection of preferred version size below considers from reduction running gate system dimension angle, the feature that applicable raw materials cool time is little, to shorten injection time, improves plastic part quality and injection moulding efficiency.
Preferred:
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the diameter of described cast gate 3 is 1.5mm.
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the radius of described runner 2 is 14mm.
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the length of described runner 2 and cast gate 3 is 20mm.
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the diameter of described sprue 1 is 35mm.
Described a kind of double-shot moulding part polypropylene thermal runner running gate system, is characterized in that: the overall length of described sprue 1, runner 2, cast gate 3 is 114mm.
More than show and describe the general principle of the design, principal character and advantage.The technical staff of the industry should understand; the design is not restricted to the described embodiments; the principle that the design is just described described in above-described embodiment and description; under the prerequisite not departing from the design's spirit and scope; the design also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the design.The claimed scope of the design is defined by appending claims and equivalent thereof.
Claims (6)
1. a double-shot moulding part polypropylene thermal runner running gate system, comprises sprue (1), it is characterized in that: runner (2) is hemispherical, and the angle of cast gate (3) both sides, cross section crest line (4) is 90 °.
2. a kind of double-shot moulding part polypropylene thermal runner running gate system as claimed in claim 1, is characterized in that: the diameter of described cast gate (3) is 1.5mm.
3. a kind of double-shot moulding part polypropylene thermal runner running gate system as claimed in claim 1, is characterized in that: the radius of described runner (2) is 14mm.
4. a kind of double-shot moulding part polypropylene thermal runner running gate system as claimed in claim 1, is characterized in that: the length of described runner (2) and cast gate (3) is 20mm.
5. a kind of double-shot moulding part polypropylene thermal runner running gate system as claimed in claim 1, is characterized in that: the diameter of described sprue (1) is 35mm.
6. a kind of double-shot moulding part polypropylene thermal runner running gate system as claimed in claim 1, is characterized in that: the overall length of described sprue (1), runner (2), cast gate (3) is 114mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410647.7U CN204095063U (en) | 2014-07-24 | 2014-07-24 | A kind of double-shot moulding part polypropylene thermal runner running gate system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420410647.7U CN204095063U (en) | 2014-07-24 | 2014-07-24 | A kind of double-shot moulding part polypropylene thermal runner running gate system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204095063U true CN204095063U (en) | 2015-01-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420410647.7U Expired - Fee Related CN204095063U (en) | 2014-07-24 | 2014-07-24 | A kind of double-shot moulding part polypropylene thermal runner running gate system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204095063U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149283A (en) * | 2014-07-24 | 2014-11-19 | 苏州市华宁机械制造有限公司 | Polypropylene hot runner gating system of double-color injection molding part |
| CN107139405A (en) * | 2017-03-31 | 2017-09-08 | 杭州胜利体育用品有限公司 | A kind of making apparatus of table tennis |
-
2014
- 2014-07-24 CN CN201420410647.7U patent/CN204095063U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104149283A (en) * | 2014-07-24 | 2014-11-19 | 苏州市华宁机械制造有限公司 | Polypropylene hot runner gating system of double-color injection molding part |
| CN107139405A (en) * | 2017-03-31 | 2017-09-08 | 杭州胜利体育用品有限公司 | A kind of making apparatus of table tennis |
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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 |
Granted publication date: 20150114 Termination date: 20150724 |
|
| EXPY | Termination of patent right or utility model |