CN101659098A - Method for removing weld marks of injection molding parts - Google Patents
Method for removing weld marks of injection molding parts Download PDFInfo
- Publication number
- CN101659098A CN101659098A CN200810118924A CN200810118924A CN101659098A CN 101659098 A CN101659098 A CN 101659098A CN 200810118924 A CN200810118924 A CN 200810118924A CN 200810118924 A CN200810118924 A CN 200810118924A CN 101659098 A CN101659098 A CN 101659098A
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- Prior art keywords
- injection molding
- moulding
- mouth
- weld marks
- molding parts
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Abstract
The invention relates to a method for manufacturing a plastic part, in particular to a method for removing weld marks of injection molding parts, which comprises the following steps of: arranging a pouring port of an injection molding part on the back face of a panel type injection molding part and arranging the pouring port in the middle of the back face of the injection molding part. The back face of the injection molding part is provided with only one pouring port. The middle of the back face of the injection molding part is the geometric center or the weight center of the injection moldingpart. The dimension of the pouring port is set according to the dimension of the injection molding part. The method has the advantages of making the appearance of the injection molding part more beautiful, removing the weld marks which are formed when fused plastics are poured from two sides of a plastic mold to a cavity of the mold in the prior art, and improving the intensity of the manufactured plastic products after the position of the pouring port is improved.
Description
Technical field
The present invention relates to the preparation method of working of plastics, be specifically related to a kind of method of removing weld marks of injection molding parts.
Background technology
In existing working of plastics is made; adopt the method for injection moulding mostly; and when making bigger moulding; generally be to build a mouthful sidewall that is arranged on product; the quantity that cast gate is offered is 2～3; therefore build from 2 of mould after mouth enters into the cavity of mould when molten plastic; must there be two strands of molten plastics in described vestibule, to converge; molten plastic will make the working of plastics of making form a weld marks clearly at described meet; this weld marks will have a strong impact on the appearance of panel class working of plastics; and described weld marks also will cause the bulk strength of working of plastics and have a strong impact on, and therefore be necessary existing plastic production method is improved.
Summary of the invention
The objective of the invention is to overcome the deficiency in the existing plastic injection technique, design a kind of method of removing weld marks of injection molding parts, is that the outward appearance of moulding is more attractive in appearance, and intensity is higher.
For achieving the above object, technical scheme of the present invention is a kind of method of removing weld marks of injection molding parts, and described method is, with the back side that mouth is arranged on panel class moulding of building of moulding, and will describedly build mouth and be arranged in the middle part of the back side of described moulding.
Wherein, only be provided with one at the back side of described moulding and build mouth.
Wherein, middle part, the back side of described moulding is the geometric center of moulding, or is the weight center of moulding.
Wherein, if the geometric center or the weight center of described moulding overlaps with the hole or the exposed surface of moulding, describedly build the position is set gets around the hole of described moulding or the position of exposed surface of mouth.
Wherein, described size of building mouth is set according to the appearance and size of moulding.
Wherein, the described mouth of building is for being arranged on the opening of making on the described moulding mould.
Wherein, the described mouth of building is rectangle.
Wherein, described moulding is an air-conditioner panel.
Advantage of the present invention and beneficial effect are, the present invention is with the middle part, the back side that mouth is arranged on moulding of building of panel class working of plastics, and only be provided with one and build mouth, like this can be so that the outward appearance of working of plastics is more attractive in appearance, eliminated in the prior art, the weld marks that forms when building molten plastic in the two side direction mould cavities by mould of plastics, and improve build mouthful position after, its intensity of made plastic products also will be improved.
Description of drawings
Fig. 1 is that working of plastics of the present invention is built mouth position view is set.
Among the figure: 1, build mouth on the mould of plastics; 2, moulding.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is further described.Following examples only are used for technical scheme of the present invention more clearly is described, and can not limit protection scope of the present invention with this.
The concrete technical scheme of implementing of the present invention is, a kind of method of removing weld marks of injection molding parts, described method are the back side that mouth is arranged on panel class moulding of building with moulding, and will describedly build mouth and be arranged in the middle part of the back side of described moulding.
Preferable in the present invention embodiment is only to be provided with one at the back side of described moulding and to build mouth.Wherein, middle part, the back side of described moulding is the geometric center of moulding, or is the weight center of moulding.If the geometric center or the weight center of described moulding overlap with the hole or the exposed surface of moulding, describedly build the position is set gets around the hole of described moulding or the position of exposed surface of mouth.Described size of building mouth can be set according to the appearance and size of moulding.The mouth of building described in the present invention is to be arranged on the opening of making on the described moulding mould.The described mouth of building can be designed to rectangle.Described moulding described in the present invention is an air-conditioner panel.
Because existing panel class working of plastics, especially the panel of air-conditioner adds man-hour in injection moulding, injection mold generally to be plastics inject the two ends that mouth is arranged on working of plastics of building in the mould cavity with fusion, when molten plastic is injected into the cavity of mould of plastics, molten plastic will compile to the centre from two ends, molten plastic will form weld marks at described junction, and the air-conditioner panel that adopts this Mold Making to go out reaches not attractive in appearance, and intensity is also bad.The present invention is exactly with the middle part, the back side that mouthful position is arranged on panel of building on the mould of production air-conditioning panel, and changes the described mouth of building into one.Like this when molten plastic from described build mouthful inject after, molten plastic will flow in the cavity of mould until described cavity is filled completely, the air-conditioner panel good looking appearance that adopts this mold injection to go out does not have weld marks, the structural strength height of panel.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (8)
1, a kind of method of removing weld marks of injection molding parts is characterized in that, described method is, with the back side that mouth is arranged on panel class moulding of building of moulding, and will describedly build mouth and be arranged in the middle part of the back side of described moulding.
2, the method for removal weld marks of injection molding parts as claimed in claim 1 is characterized in that, only is provided with one at the back side of described moulding and builds mouth.
3, the method for removal weld marks of injection molding parts as claimed in claim 2 is characterized in that, the middle part, the back side of described moulding is the geometric center of moulding, or is the weight center of moulding.
4, the method for removal weld marks of injection molding parts as claimed in claim 3, it is characterized in that, if the geometric center or the weight center of described moulding overlap with the hole or the exposed surface of moulding, describedly build the position is set gets around the hole of described moulding or the position of exposed surface of mouth.
5, the method for removal weld marks of injection molding parts as claimed in claim 4 is characterized in that, described size of building mouth is set according to the appearance and size of moulding.
6, the method for removal weld marks of injection molding parts as claimed in claim 5 is characterized in that, the described mouth of building is for being arranged on the opening of making on the described moulding mould.
7, the method for removal weld marks of injection molding parts as claimed in claim 6 is characterized in that, the described mouth of building is rectangle.
As the method for each described removal weld marks of injection molding parts of claim 2 to 7, it is characterized in that 8, described moulding is an air-conditioner panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810118924A CN101659098A (en) | 2008-08-26 | 2008-08-26 | Method for removing weld marks of injection molding parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810118924A CN101659098A (en) | 2008-08-26 | 2008-08-26 | Method for removing weld marks of injection molding parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101659098A true CN101659098A (en) | 2010-03-03 |
Family
ID=41787451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810118924A Pending CN101659098A (en) | 2008-08-26 | 2008-08-26 | Method for removing weld marks of injection molding parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101659098A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103847074A (en) * | 2012-11-28 | 2014-06-11 | 株式会社小糸制作所 | Resin molded product and molding method and molding apparatus thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488481A (en) * | 2002-09-09 | 2004-04-14 | ������������ʽ���� | Injection molded artide and injection-moulding mould and injection-moulding method |
| CN200967261Y (en) * | 2006-11-14 | 2007-10-31 | 林作钱 | Plug mould |
| CN101088737A (en) * | 2006-06-16 | 2007-12-19 | 鸿富锦精密工业（深圳）有限公司 | Injecting mold |
-
2008
- 2008-08-26 CN CN200810118924A patent/CN101659098A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1488481A (en) * | 2002-09-09 | 2004-04-14 | ������������ʽ���� | Injection molded artide and injection-moulding mould and injection-moulding method |
| CN101088737A (en) * | 2006-06-16 | 2007-12-19 | 鸿富锦精密工业（深圳）有限公司 | Injecting mold |
| CN200967261Y (en) * | 2006-11-14 | 2007-10-31 | 林作钱 | Plug mould |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103847074A (en) * | 2012-11-28 | 2014-06-11 | 株式会社小糸制作所 | Resin molded product and molding method and molding apparatus thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100303 |