CN101096121A - Double-shot injection mould - Google Patents
Double-shot injection mould Download PDFInfo
- Publication number
- CN101096121A CN101096121A CNA2006100614992A CN200610061499A CN101096121A CN 101096121 A CN101096121 A CN 101096121A CN A2006100614992 A CNA2006100614992 A CN A2006100614992A CN 200610061499 A CN200610061499 A CN 200610061499A CN 101096121 A CN101096121 A CN 101096121A
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- mould
- die cavity
- auxiliary flow
- bicolor injection
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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention relates to a double-color injection mold, comprising front mold, back mold, multiple sliding blocks set on the front mold and multiple sliding blocks set on the back mold. The invention also comprises multiple first cavities, multiple second cavities, a first hot flow channel, a second hot flow channel, at least a first assistant channel and at least a second assistant channel. The first assistant channel makes the first hot flow channel connect with multiple first cavities for feeding in each first cavity. The second assistant channel makes the second hot flow channel connect with multiple second cavities for feeding in each second cavity. By implementing assistant flow channels there are following effects. Needed mold number can be decreased and cost is decreased greatly. Because assistant channels are used machining is convenient and it is favor of carrying out next full automatic production. Producing time is saved. Cylinder and square guide column/sleeve are used so as to make mold position more accurate.
Description
Technical field
The present invention relates to injection mold, more particularly, relate to a kind of bicolor injection mould.
Background technology
Double-shot moulding is meant two kinds of different colours, and different types of plastics mostly are the collocation of a kind of flexible plastic and a kind of duroplasts, carry out injection moulding in sequence by double coloured plastic injection machine, and two kinds of plastic cement are organically combined, and become a complete product.Bicolor injection mould is used for above-mentioned injection moulding process.Usually, because the process of double-shot moulding is comparatively complicated, require the precision height of mould, the mould top shoe is more, the hot flow path complexity, the selection of feed entrance point is difficult, common bicolor injection mould generally all has only a product, two die cavities, and each needs twice injection moulding owing to common double-colored injecting products, so in the time will producing its a plurality of product that flexible glue material is identical, the ebonite material is also identical, will make many molds, and repeatedly injection moulding, not only time-consuming but also waste raw material, and, be unfavorable for that the automation of subsequent handling is handled because product is independent individuality; And mould machinery control slide block action commonly used, precision is not high yet, and is bigger to the location precision of mould.
Summary of the invention
The technical problem to be solved in the present invention is, at the above-mentioned time-consuming expense material of prior art, be unfavorable for defectives such as automation processing, positioning accuracy be low, a kind of material-saving that saves time is provided, is convenient to follow-up automation processing, positioning accuracy height, the bicolor injection mould of product size precision height and outward appearance precision.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of bicolor injection mould, comprise front mould, back mould, be positioned at a plurality of slide blocks of front mould and be positioned at a plurality of slide blocks of mould afterwards, also comprise a plurality of first die cavities, a plurality of second die cavity, first hot flow path, second hot flow path, at least one first auxiliary flow and at least one second auxiliary flow; This first auxiliary flow links together, is used for each first die cavity charging with described first hot flow path and a plurality of first die cavity; This second auxiliary flow links together, is used for each second die cavity charging with described second hot flow path and a plurality of second die cavity.
In bicolor injection mould of the present invention, described first auxiliary flow is positioned at the back mould, makes first kind of melting raw material enter each die cavity; Described second auxiliary flow is positioned at front mould, makes second kind of melting raw material enter each die cavity.
In bicolor injection mould of the present invention, comprise 4 first auxiliary flows on the mould of described back; Comprise 2 second auxiliary flows on the described front mould.
In bicolor injection mould of the present invention, described every second auxiliary flow comprises and the identical branch of the described second die cavity number, each branch be connected to described second die cavity flow channel shape be the arc of gradual change, and its cross section dwindles gradually to the die cavity direction, and it advances the glue spot diameter is 0.3mm.
In bicolor injection mould of the present invention, described first auxiliary flow and second auxiliary flow are cold runner.
In bicolor injection mould of the present invention, also comprise a plurality of described oil cylinders that are positioned at the slide block action of front mould and back mould that are used to control.
In bicolor injection mould of the present invention, described oil cylinder is fixed on the front mould.
In bicolor injection mould of the present invention, the guide column that is used to locate when described front mould and back mould matched moulds is rectangular column/cover.
In bicolor injection mould of the present invention, described guide pillar is that alloyed copper is made, and a plurality of blind holes are arranged thereon, is filled with graphite in the blind hole.
Implement double-color mold of the present invention, have following beneficial effect:, significantly reduced the quantity that needs the mould of manufacturing because a plurality of products are placed on the same set of mould; Owing to used auxiliary flow, make easy to processly, more help next step and carry out fully-automatic production, saved the production time; And the use of oil cylinder and square guide column makes the mould location more accurate, and the product size precision is higher and outward appearance is more accurate.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the front view of the position of double-color mold embodiment auxiliary flow of the present invention in mould;
Fig. 2 is the structural representation of double-color mold embodiment auxiliary flow of the present invention;
Fig. 3 is the schematic diagram of the position of double-color mold embodiment auxiliary flow of the present invention in mould;
Fig. 4 is the side view of double-color mold embodiment of the present invention;
Fig. 5 is the front view of oil cylinder and guide column position among the double-color mold embodiment of the present invention;
Fig. 6 is the structural representation of guide column among the double-color mold embodiment of the present invention.
The specific embodiment
In an embodiment of the present invention, the double-color mold of design washing machine accessory has two kinds of raw materials that are used for injection moulding, its color difference, and its kind is also different, and first kind of raw material is PA12, is ebonite; Second kind of raw material is TPE, is flexible glue.During injection moulding, because the structural reason of product own, take first injection moulding PA12, then the flow process of injection moulding TPE again in type PA12.
This double-color mold is decomposed into through refinement: mould after the front mould of two different part formations and two the duplicate part formations, come the raw material of conversion injection moulding by continuous rotation back mould, the center and the main nozzle concentric of back mould rotation, this just require the back mould when rotated with the front mould concentric, the precision of its location and processing is higher, and mould will keep high concentricity.For reaching this requirement, abandoned the machinery commonly used action of loosing core in the present embodiment, use oil cylinder instead and finish the action of loosing core, referring to a plurality of oil cylinders shown in Fig. 5 by electronic microswitch; The icon of oil cylinder is 5, has pointed out its position, and all oil cylinders all are fixed on the front mould side, and each oil cylinder is controlled the opening and closing action by two travel switches.
In the present embodiment, for saving process time, and make things convenient for secondary operations, two kinds of products are placed at interval, per two is one group, has two groups on a part of described formation front mould/back mould, is the 4+4 ranking.As shown in Figure 1, 2, 3, on the mould of back, be provided with 4 first auxiliary flows 9 that allow first kind of raw material PA12 enter each die cavity, 2 second auxiliary flows 8 that allow second kind of raw material TPE enter each die cavity are arranged on front mould.Fig. 1 illustrates the position of these auxiliary flows in mould, and Fig. 2 has represented these auxiliary flows structure, and Fig. 3 is the position and the structure chart of first auxiliary flow 9 and second auxiliary flow 8 when being looked down by the mould top.By seeing among Fig. 2,3, every second auxiliary flow all can be divided into three parts: the trunk of second auxiliary flow, branch and by the arc diving that is branched off into each second die cavity, its cross section helps making the vestige of feeding mouth to reduce and is tending towards smooth to the diminishing structure of die cavity direction.
The comparatively accurate measure in location was to adopt square guide pillars and bushes when another made the mould matched moulds, see Fig. 5,6, wherein Fig. 5 illustrates the position of guide column in the present embodiment, Fig. 6 then illustrates the CONSTRUCTED SPECIFICATION of this guide column 6, this guide pillar is made with alloyed copper, and a plurality of blind holes are arranged on this guide pillar, in described blind hole, be placed with the graphite post of self-lubricating function.
The injection moulding process of present embodiment is described as follows in conjunction with Fig. 4: behind the matched moulds, during first kind of raw material PA12 of injection moulding for the first time, after the PA12 of fusing enters mould, enter first hot flow path 1 through hot sprue bushing, through behind the sprue bushing 3, enter first die cavity from first hot flow path 1 by first auxiliary flow 9; After finishing, under oil cylinder 5 drives that are fixed on the front mould, pull out front mould and loose core, preceding mode slider is decontroled; Mould before and after separating again, this moment, product was stayed the back mould; Rotation back mould, product be mould Rotate 180 degree together subsequently, forwards another part of front mould to; Again with front and back mould matched moulds, under the oil cylinder drive that is fixed on the front mould, the propelling front mould is loosed core, the front mould slide block closes up, carry out second kind of raw material TPE of the injection moulding first time, after the TPE of fusing enters mould, enter second hot flow path 2 through another hot sprue bushing, through behind the sprue bushing 4, enter second die cavity from second hot flow path 2 by second auxiliary flow 8; Meanwhile, the sprue bushing of original injection moulding PA12 injection moulding for the second time PA12, what be mated is first die cavity of another part of back mould; After finishing injection moulding, under the oil cylinder drive that is fixed on the front mould, pull out front mould and loose core; preceding mode slider is decontroled; die sinking then, the thimble of a side of injection moulding flexible glue ejects, and makes the product of finishing injection moulding break away from mould; while back mould is the Rotate 180 degree once more; matched moulds enters next cycle again, will be to the die cavity injection moulding PA12 of product stripping; and the die cavity injection moulding TPE of PA12 that given firm injection moulding, so constantly qualified product can be constantly produced in circulation.
Claims (9)
1, a kind of bicolor injection mould, comprise front mould, back mould, be positioned at a plurality of slide blocks of front mould and be positioned at a plurality of slide blocks of mould afterwards, it is characterized in that, also comprise a plurality of first die cavities, a plurality of second die cavity, first hot flow path, second hot flow path, at least one first auxiliary flow and at least one second auxiliary flow; This first auxiliary flow links together, is used for each first die cavity charging with described first hot flow path and a plurality of first die cavity; This second auxiliary flow links together, is used for each second die cavity charging with described second hot flow path and a plurality of second die cavity.
2, bicolor injection mould according to claim 1 is characterized in that, described first auxiliary flow is positioned at the back mould, makes first kind of melting raw material enter each die cavity; Described second auxiliary flow is positioned at front mould, makes second kind of melting raw material enter each die cavity.
3, bicolor injection mould according to claim 2 is characterized in that, comprises 4 first auxiliary flows on the mould of described back; Comprise 2 second auxiliary flows on the described front mould.
4, bicolor injection mould according to claim 3, it is characterized in that, described every second auxiliary flow comprises and the identical branch of the described second die cavity number, each branch be connected to described second die cavity flow channel shape be the arc of gradual change, and its cross section dwindles gradually to the die cavity direction, and it advances the glue spot diameter is 0.3mm.
5, bicolor injection mould according to claim 4 is characterized in that, described first auxiliary flow and second auxiliary flow are cold runner.
6, bicolor injection mould according to claim 5 is characterized in that, also comprises a plurality of described oil cylinders that are positioned at the slide block action of front mould and back mould that are used to control, and described oil cylinder is controlled by electronic microswitch.
7, bicolor injection mould according to claim 6 is characterized in that, described oil cylinder is fixed on the front mould.
8, bicolor injection mould according to claim 7 is characterized in that, the guide column that is used to locate when described front mould and back mould matched moulds is rectangular column/cover.
9, bicolor injection mould according to claim 8 is characterized in that, described guide column is that alloyed copper is made, and a plurality of blind holes are arranged on described guide pillar, is filled with graphite in the blind hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100614992A CN101096121B (en) | 2006-06-30 | 2006-06-30 | Double-shot injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100614992A CN101096121B (en) | 2006-06-30 | 2006-06-30 | Double-shot injection mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101096121A true CN101096121A (en) | 2008-01-02 |
| CN101096121B CN101096121B (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2006100614992A Active CN101096121B (en) | 2006-06-30 | 2006-06-30 | Double-shot injection mould |
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| CN (1) | CN101096121B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120355A (en) * | 2011-01-24 | 2011-07-13 | 宁波横河模具有限公司 | Bicolor injection mould for wheels of dust collectors |
| CN102173034A (en) * | 2011-03-10 | 2011-09-07 | 浙江洁瓴实业有限公司 | Double-injection mold |
| CN102275260A (en) * | 2011-05-04 | 2011-12-14 | 苏州威凯精密模具有限公司 | Injection mold |
| CN102814936A (en) * | 2012-08-06 | 2012-12-12 | 宁波博超模具有限公司 | Double-shot molding mold for forming double-face rubber coated product |
| CN103963231A (en) * | 2014-05-26 | 2014-08-06 | 苏州意玛斯砂光设备有限公司 | Auxiliary runner system of injection mould mechanism |
| CN106671357A (en) * | 2016-12-31 | 2017-05-17 | 滁州迪蒙德模具制造有限公司 | High-precision in-mold decorating injection forming mold |
| CN109109265A (en) * | 2018-08-28 | 2019-01-01 | 优力精密塑胶（苏州）有限公司 | One kind vacuumizing auxiliary double-shot moulding device |
| CN110919987A (en) * | 2019-11-01 | 2020-03-27 | 江苏中科瑞尔汽车科技有限公司 | SUV wheel arch double-color injection mold |
| CN112172037A (en) * | 2020-09-21 | 2021-01-05 | 浙江工商职业技术学院 | Multifunctional forming die |
| CN113650229A (en) * | 2021-08-26 | 2021-11-16 | 广州城市理工学院 | Injection molding control method of injection molding device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391476B (en) * | 2008-10-23 | 2011-09-21 | 黄岩星泰塑料模具有限公司 | Composite core-pulling device for realizing single mould cavity and dual injection mould |
Family Cites Families (6)
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| US4315724A (en) * | 1979-12-19 | 1982-02-16 | Kamaya Kagaku Kogyo Co., Ltd. | Process and machine for multi-color injection molding |
| CA2219235C (en) * | 1997-10-23 | 2006-12-12 | Mold-Masters Limited | Five layer injection molding apparatus having four position valve member actuating mechanism |
| MXPA00010597A (en) * | 1998-04-28 | 2002-10-31 | Gillette Canada | Method and apparatus for substantially simultaneously forming multiple articles having different properties. |
| CN1386622A (en) * | 2001-05-22 | 2002-12-25 | 上海华王工业有限公司 | Die head for dual-colour injection moulding |
| CN2495448Y (en) * | 2001-06-28 | 2002-06-19 | 宁波亨润塑机有限公司 | Injection device of two color plastic injection machine |
| CN2664886Y (en) * | 2003-09-28 | 2004-12-22 | 黄凤梧 | Two-color alternate jetting structure of jet machine |
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2006
- 2006-06-30 CN CN2006100614992A patent/CN101096121B/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102120355A (en) * | 2011-01-24 | 2011-07-13 | 宁波横河模具有限公司 | Bicolor injection mould for wheels of dust collectors |
| CN102120355B (en) * | 2011-01-24 | 2013-06-05 | 宁波横河模具股份有限公司 | Bicolor injection mould for wheels of dust collectors |
| CN102173034A (en) * | 2011-03-10 | 2011-09-07 | 浙江洁瓴实业有限公司 | Double-injection mold |
| CN102275260A (en) * | 2011-05-04 | 2011-12-14 | 苏州威凯精密模具有限公司 | Injection mold |
| CN102814936A (en) * | 2012-08-06 | 2012-12-12 | 宁波博超模具有限公司 | Double-shot molding mold for forming double-face rubber coated product |
| CN102814936B (en) * | 2012-08-06 | 2014-12-10 | 宁波博超模具有限公司 | Double-shot molding mold for forming double-face rubber coated product |
| CN103963231A (en) * | 2014-05-26 | 2014-08-06 | 苏州意玛斯砂光设备有限公司 | Auxiliary runner system of injection mould mechanism |
| CN106671357A (en) * | 2016-12-31 | 2017-05-17 | 滁州迪蒙德模具制造有限公司 | High-precision in-mold decorating injection forming mold |
| CN109109265A (en) * | 2018-08-28 | 2019-01-01 | 优力精密塑胶（苏州）有限公司 | One kind vacuumizing auxiliary double-shot moulding device |
| CN110919987A (en) * | 2019-11-01 | 2020-03-27 | 江苏中科瑞尔汽车科技有限公司 | SUV wheel arch double-color injection mold |
| CN112172037A (en) * | 2020-09-21 | 2021-01-05 | 浙江工商职业技术学院 | Multifunctional forming die |
| CN113650229A (en) * | 2021-08-26 | 2021-11-16 | 广州城市理工学院 | Injection molding control method of injection molding device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101096121B (en) | 2010-06-16 |
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Owner name: QUNDA MOULD (SHENZHEN) CO., LTD. Free format text: FORMER OWNER: SHENZHEN QUNDAHANG PRECISION MOULD CO., LTD. Effective date: 20100407 |
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Free format text: CORRECT: ADDRESS; FROM: 518112 NO.6, SOUTH OF BANTIAN AVENUE, BUJI BANTIAN VILLAGE, SHENZHEN CITY, GUANGDONG PROVINCE TO: 518129 NO.6, SOUTH OF BANTIAN AVENUE, BANTIAN STREET COMMUNITY, LONGGANG DISTRICT, SHENZHEN CITY, GUANGDONG PROVINCE |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20100407 Address after: 518129 No. 6, Bantian Avenue, Bantian street, Longgang District, Guangdong, Shenzhen Applicant after: Kunda Mold (Shenzhen) Co., Ltd. Address before: 518112, No. 6, Bantian Avenue, Bantian village, Shenzhen, Guangdong, Buji Applicant before: Qundahang Precision Mould Co., Ltd., Shenzhen City |
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