CN103817855A - Hard rubber-in-soft rubber structure capable of eliminating outer joint line - Google Patents
Hard rubber-in-soft rubber structure capable of eliminating outer joint line Download PDFInfo
- Publication number
- CN103817855A CN103817855A CN201210465007.1A CN201210465007A CN103817855A CN 103817855 A CN103817855 A CN 103817855A CN 201210465007 A CN201210465007 A CN 201210465007A CN 103817855 A CN103817855 A CN 103817855A
- Authority
- CN
- China
- Prior art keywords
- ebonite
- flexible glue
- joint line
- outward appearance
- rubber
- 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.)
- Pending
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2669—Moulds with means for removing excess material, e.g. with overflow cavities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2669—Moulds with means for removing excess material, e.g. with overflow cavities
- B29C2045/2671—Resin exit gates or bleeder passages
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
A hard rubber-in-soft rubber structure capable of eliminating an outer joint line is applied to a double-color mould, and comprises hard rubber and soft rubber, wherein the hard rubber comprises a hard rubber body and a hard rubber joint surface; a plurality of material overflowing holes are formed from the hard rubber joint surface to the hard rubber body; the soft rubber comprises a soft rubber body and insertion parts protruding from the surface of the soft rubber body; the surface of the soft rubber body is on contact with the joint surface of the hard rubber body; the insertion parts are inserted into the material overflowing holes in a matching way. Compared with the prior art, the hard rubber-in-soft rubber structure has the advantages as follows: the material overflowing holes are formed in the first jet hard rubber, and a cold material at a second jet soft rubber flowing terminal is guided into the material overflowing holes, so that the problem that the joint line cannot be eliminated because the exhausting effect of the soft rubber flowing terminal in the double-color mould is poor is solved.
Description
[technical field]
The present invention relates to a kind of structure of plastic cement products, be specifically related to the integrated structure that a kind of flexible glue that can remove product appearance joint line and ebonite form.
[background technology]
On plastic cement products, often have joint line; joint line is that melted material road or melted material road collaborate the fine rule that part forms above; not only two are entered glue point and can produce joint line; sometimes even one enter glue point also can be because the difference of product structure produces joint line, the direction that joint line produces is with to enter position, size and the plastic cement flowing temperature of glue point all relevant.But in plastic mould manufacturing industry, strict especially to the requirement of outward appearance, having many product requirement appearance is high minute surface, must there is no joint line, in the time running into this outward appearance product, conventional design is to enter son in the Position Design exhaust of joint line.
During for some double-color mold shaped articles, because the male model side at mould in the time that second penetrates flexible glue is first to penetrate ebonite, cannot enter son for flexible glue designs exhaust, thereby the exhaust effect of flexible glue flow end is not good, joint line cannot be eliminated, and refers to Fig. 1 and Fig. 2 illustrates, and is the product 10 of double color mould moulding, described flexible glue 11 inject die cavity and described ebonite 12 in conjunction with time can produce many places joint lines 13 on these product 10 surfaces, thereby will greatly reduce the attractive in appearance of product.
In view of this, be necessary to provide in fact a plastic cement products structure, this product structure can solve the problem of product surface formation flexible glue joint line in double-color mold Shooting Technique.
[summary of the invention]
Therefore, the invention provides a kind of outward appearance joint line flexible glue bag ebonite structure of removing, produce the problem of joint line to solve double color mould product appearance.
In order to achieve the above object, of the present invention except outward appearance joint line flexible glue bag ebonite structure, it is applied in double-color mold, should comprise except outward appearance joint line flexible glue bag ebonite structure:
Ebonite, it comprises ebonite body and ebonite faying face, offers some flashes hole from described ebonite faying face to this ebonite body;
Flexible glue, it comprises flexible glue body and the insertion section that the surface of this flexible glue body protrudes out certainly, the faying face of ebonite body described in the Surface Contact of described flexible glue body, described insertion section coordinates inserts in described flash hole.
Preferably, described flash hole is positioned at the flow end of described flexible glue.
Preferably, described ebonite is the mixture of PC resin and ABS resin, and described flexible glue is TPU.
Preferably, described except outward appearance joint line flexible glue bag ebonite structure be notebook computer screen housing.
Compared to prior art, the present invention is except outward appearance joint line flexible glue bag ebonite structure is by penetrating and open flash hole on ebonite first, the second cold burden drainage of penetrating flexible glue flow end is entered in flash hole, thereby solve because of the exhaust effect of the flexible glue flow end in double-color mold not goodly, and produce the problem that cannot eliminate of joint line.
[accompanying drawing explanation]
Fig. 1 illustrates as existing plastic cement products.
Fig. 2 illustrates A-A into Fig. 1 to cutaway view.
Fig. 3 illustrates as the present invention is except the schematic diagram of outward appearance joint line flexible glue bag ebonite structure.
Fig. 4 illustrates B-B into Fig. 3 to cutaway view.
[specific embodiment]
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in detail.
Referring to Fig. 3 and illustrate, is a kind of plastic cement products 100 that removes outward appearance joint line flexible glue bag ebonite structure of the present invention, and this product 100 is the housing of notebook computer screen, and it is applied in double-color mold, refers to Fig. 4 and illustrates, and the structure of this product 100 comprises:
Ebonite 20, it comprises ebonite body 210 and ebonite faying face 220, offers some flashes hole 230 from described ebonite faying face 220 to this ebonite body 210;
In the present embodiment, described flash hole 230 is positioned at the flow end of described flexible glue 300.
In the present embodiment, described ebonite 20 is the mixture of PC resin and ABS resin, and described flexible glue 30 is TPU.
When this double-color mold injecting products 100, die cavity aftershaping injected by ebonite 20 by the first nozzle, after die sinking by matched moulds after mould Rotate 180 degree, the second nozzle is injected flexible glue 30 die cavity that has ebonite 20, the cold burden of the flow end of flexible glue 30 flows in the flash hole 230 of ebonite 20 moulding simultaneously, avoid generation joint line, the most at last bi-material after being molded over together die sinking for the second time eject, the product being made up of flexible glue 30 and ebonite 20 the invention is not restricted to the housing of notebook computer screen, as long as all can use structure of the present invention.
Compared to prior art, the present invention is except outward appearance joint line flexible glue bag ebonite structure is by penetrating and open flash hole on ebonite first, the second cold burden drainage of penetrating flexible glue flow end is entered in flash hole, thereby solve because of the exhaust effect of the flexible glue flow end in double-color mold not goodly, and produce the problem that cannot eliminate of joint line.
Be pointed out that, the invention is not restricted to above-mentioned embodiment, any simple modification, equivalent variations and modification that any those skilled in the art do above-described embodiment based on technical solution of the present invention, all fall within the scope of protection of the present invention.
Claims (4)
1. except an outward appearance joint line flexible glue bag ebonite structure, it is applied in double-color mold, it is characterized in that, should comprise except outward appearance joint line flexible glue bag ebonite structure:
Ebonite, it comprises ebonite body and ebonite faying face, offers some flashes hole from described ebonite faying face to this ebonite body;
Flexible glue, it comprises flexible glue body and the insertion section that the surface of this flexible glue body protrudes out certainly, the faying face of ebonite body described in the Surface Contact of described flexible glue body, described insertion section coordinates inserts in described flash hole.
2. the outward appearance joint line flexible glue bag ebonite structure of removing according to claim 1, is characterized in that, described flash hole is positioned at the flow end of described flexible glue.
3. the outward appearance joint line flexible glue bag ebonite structure of removing according to claim 1, is characterized in that, described ebonite is the mixture of PC resin and ABS resin, and described flexible glue is TPU.
4. according to claim 1 except outward appearance joint line flexible glue bag ebonite structure, it is characterized in that, described except outward appearance joint line flexible glue bag ebonite structure be notebook computer screen housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465007.1A CN103817855A (en) | 2012-11-19 | 2012-11-19 | Hard rubber-in-soft rubber structure capable of eliminating outer joint line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210465007.1A CN103817855A (en) | 2012-11-19 | 2012-11-19 | Hard rubber-in-soft rubber structure capable of eliminating outer joint line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103817855A true CN103817855A (en) | 2014-05-28 |
Family
ID=50753275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210465007.1A Pending CN103817855A (en) | 2012-11-19 | 2012-11-19 | Hard rubber-in-soft rubber structure capable of eliminating outer joint line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103817855A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088989A (en) * | 2017-05-31 | 2017-08-25 | 锦州希尔达汽车零部件有限公司 | A kind of method of Automobile Dashboard undertray double-shot moulding |
| CN107692448A (en) * | 2017-08-27 | 2018-02-16 | 昆山六二丰塑胶电子有限公司 | Bicolor plastic cement shell and preparation method thereof |
| CN109895320A (en) * | 2017-12-08 | 2019-06-18 | 汉达精密电子(昆山)有限公司 | Flexible glue flash structure |
| CN113968001A (en) * | 2021-10-26 | 2022-01-25 | 重庆精渝田科技有限公司 | Soft and hard composite rubber part injection molding device and molding method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185640A (en) * | 1983-04-06 | 1984-10-22 | Nissan Motor Co Ltd | Preparation of resin molded article |
| GB2435851A (en) * | 2006-03-06 | 2007-09-12 | Lear Corp | Moulded trim component |
| CN202264360U (en) * | 2011-09-06 | 2012-06-06 | 上海龙洲塑料模具有限公司 | Concealed feed inlet of soft and hard plastic injection molds for double-colored injection molding machine |
| CN203092913U (en) * | 2012-11-19 | 2013-07-31 | 汉达精密电子(昆山)有限公司 | Appearance joint line-removed hard plastic-in-soft plastic structure |
-
2012
- 2012-11-19 CN CN201210465007.1A patent/CN103817855A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59185640A (en) * | 1983-04-06 | 1984-10-22 | Nissan Motor Co Ltd | Preparation of resin molded article |
| GB2435851A (en) * | 2006-03-06 | 2007-09-12 | Lear Corp | Moulded trim component |
| CN202264360U (en) * | 2011-09-06 | 2012-06-06 | 上海龙洲塑料模具有限公司 | Concealed feed inlet of soft and hard plastic injection molds for double-colored injection molding machine |
| CN203092913U (en) * | 2012-11-19 | 2013-07-31 | 汉达精密电子(昆山)有限公司 | Appearance joint line-removed hard plastic-in-soft plastic structure |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107088989A (en) * | 2017-05-31 | 2017-08-25 | 锦州希尔达汽车零部件有限公司 | A kind of method of Automobile Dashboard undertray double-shot moulding |
| CN107692448A (en) * | 2017-08-27 | 2018-02-16 | 昆山六二丰塑胶电子有限公司 | Bicolor plastic cement shell and preparation method thereof |
| CN109895320A (en) * | 2017-12-08 | 2019-06-18 | 汉达精密电子(昆山)有限公司 | Flexible glue flash structure |
| CN109895320B (en) * | 2017-12-08 | 2024-03-19 | 汉达精密电子(昆山)有限公司 | Soft glue flash structure |
| CN113968001A (en) * | 2021-10-26 | 2022-01-25 | 重庆精渝田科技有限公司 | Soft and hard composite rubber part injection molding device and molding method |
| CN113968001B (en) * | 2021-10-26 | 2023-09-01 | 重庆精渝田科技股份有限公司 | Soft and hard composite glue piece injection molding device and molding method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140528 |
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| RJ01 | Rejection of invention patent application after publication |