CN101633229B - Cold runner silicon rubber forming die - Google Patents
Cold runner silicon rubber forming die Download PDFInfo
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- CN101633229B CN101633229B CN2009100419048A CN200910041904A CN101633229B CN 101633229 B CN101633229 B CN 101633229B CN 2009100419048 A CN2009100419048 A CN 2009100419048A CN 200910041904 A CN200910041904 A CN 200910041904A CN 101633229 B CN101633229 B CN 101633229B
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Abstract
The invention relates to the field of forming dies, and particularly to a cold runner silicon rubber forming die. The cold runner silicon rubber forming die comprises a lower template, an upper template and pouring nozzle sleeves fixed on the templates, a main runner is arranged in the pouring nozzle sleeve, a sub-runner is arranged on the bottom of the main runner, and a cooling plate and a heat insulating plate are arranged around the lower temperate and the lower template. The cooling plate and the heat insulating plate are rationally arranged on positions around the upper template and the lower template to cause even temperature distribution in the runner and a forming die cavity under thermal conduction action of a heat conducting tube in the cooling plate and thermal insulation action of the heat insulating plate and ensure temperature of a rubber material in the main runner and the sub-runner in the die below curing temperature, thus directly injecting the rubber material into the die cavity next time to form a product. The die improves product quality, greatly saves the silicon rubber raw material, greatly reduces labor strength of workers and further improves production efficiency.
Description
Technical field
The present invention relates to the mould field, specifically a kind of cold runner silicon rubber forming die.
Background technology
Silastic product is widely used in fields such as electronics, automobile, health care and daily life because of its excellent high-low temperature resistant, chemical-resistance and good good physicochemical performance such as mechanical electric performance.
The mode of production of silastic product is being to adopt die cast traditionally, but this mode of production manufacturing silastic product production efficiency is lower, can not adapt to fast-developing production demand, develops to the injection mo(u)lding direction gradually.At present, the injection mo(u)lding mode of production that people make the silastic product employing mainly contains two kinds, a kind of is the hot flow path injection moulding mode that adopts common plastic rubber shaping commonly used, because silicon rubber is thermosets, under the certain pressure condition, after injecting, silicon rubber is heated to the high resiliency state that uniform temperature becomes curing in TOP-TIP, also can't change its state even continue heating, sizing material in the flow passage system and the sizing material in the die cavity vulcanize simultaneously, vulcanizate separates the back to be handled as obsolete material with goods, discarded vulcanizate need manually be removed usually, and the above-mentioned mode of production has not only had a strong impact on production efficiency, and resource is also wasted seriously; Another kind is to adopt cold runner injection moulding mode, as the disclosed cold runner injection moulding mode of China's No. 20082001893.2 patents " cold runner injection molding of rubber mould ", though on Shooting Technique, improve to some extent, but there is the uneven situation of temperature distribution in the die cavity, mould inside is heat insulation not to reach predetermined effect with cooling, has had a strong impact on the quality stability of finished product.
Summary of the invention
Technical problem to be solved by this invention provides that a kind of simple and reasonable, injection-molded finished reliable in quality is stable, production efficiency is high and saves the cold runner silicon rubber forming die of cost.
For solving the problems of the technologies described above, the technical scheme that the present invention realizes is:
A kind of cold runner silicon rubber forming die, include lower bolster, cope match-plate pattern, form shaping mold cavity between cope match-plate pattern and the lower bolster, cope match-plate pattern is provided with solid plate, is provided with adaptor (4) in the solid plate, is provided with sprue in the adaptor, sprue bottom branch shape becomes runner, the runner end is connected with needle-valve, and the lower end discharging opening of needle-valve connects the shaping mold cavity cast gate, and the needle-valve upper end is connected with noticeable degree mechanism.Described lower bolster and cope match-plate pattern periphery are equipped with thermal insulation board, and sprue bottom and the runner that is connected with the sprue bottom all place in the coldplate with cooling cooling effect, and the needle valve body that is communicated with runner is positioned among coldplate and the thermal insulation board.
For better heat insulation to shaping mold cavity, described lower bolster below is equipped with down thermal insulation board, and the cope match-plate pattern top is equipped with thermal insulation board, and upward thermal insulation board is positioned at the coldplate periphery, is provided with the heat pipe of negotiable heat transfer medium in the described coldplate.
As improvement of the technical scheme, noticeable degree mechanism comprises that the piston that is installed on the solid plate promotes structure, piston push rod, piston push rod one end connects piston and promotes structure, and the other end connects the piston fixed head, also is provided with the needle-valve adjusting rod of metering pin valve aperture on the piston fixed head.
The present invention has following remarkable result compared to existing technology:
The present invention rationally installs coldplate and thermal insulation board at cope match-plate pattern and lower bolster location about, by the conductive force of coldplate inner heat-conductive pipe and the insulation effect of thermal insulation board, make the interior temperature distribution of runner and die cavity even, guarantee that the sizing material in sprue, runner and the needle-valve remains on below the curing temperature, thereby when injecting, directly inject in the die cavity next time and become goods, this mould has not only improved the product quality performance, the silicon rubber raw material have also been saved greatly, also reduced workman's working strength simultaneously, production efficiency is further improved.
Description of drawings
Accompanying drawing 1 is a Facad structure schematic diagram of the present invention;
Accompanying drawing 2 is A of the present invention portion structure for amplifying schematic diagrames.
The specific embodiment
For the ease of those skilled in the art's understanding, structural principle of the present invention is further described in detail below in conjunction with specific embodiment and accompanying drawing:
Shown in accompanying drawing 1-2, a kind of cold runner silicon rubber forming die, include lower bolster 1, cope match-plate pattern 2, form shaping mold cavity between cope match-plate pattern and the lower bolster, cope match-plate pattern 2 is provided with solid plate 3, is provided with adaptor 4 in the solid plate, is provided with the sprue 51 that transports sizing material in the adaptor 4, sprue 51 bottom branch shape become runner 52, and runner can be many as required.Runner 52 ends are connected with the needle-valve 81 of control sizing material flow size, and needle-valve lower end discharging opening connects shaping mold cavity cast gate 53, and the needle-valve upper end is connected with noticeable degree mechanism.Noticeable degree mechanism comprises that the piston that is installed on the solid plate 3 promotes structure 91, piston push rod 92, piston push rod 92 1 ends connect piston and promote structure, the other end connects piston fixed head 93, also is provided with the needle-valve adjusting rod 82 of metering pin valve aperture on the piston fixed head.
To the cooling of shaping mold cavity external insulation, thermal insulation board 72 down is installed below lower bolster 1 for better, the cope match-plate pattern top is equipped with thermal insulation board 71, and upward thermal insulation board 71 is positioned at coldplate 6 peripheries.And then, being flow regime below the curing temperature in order to guarantee that sizing material remains at before entering shaping mold cavity, the coldplate temperature need be controlled under the uniform temperature condition.In the embodiment of the invention, be provided with the heat pipe 61 of negotiable heat transfer medium in the coldplate 6, feed cooling water or conduction oil temperature in the heat pipe 61 with the control coldplate.
Silicon rubber is thermosets, sizing material under the certain pressure condition, be heated to uniform temperature after, sizing material passes through coldplates 6 to runner 52 by sprue 51, under the effect of coldplate 6 and last thermal insulation board 71, sizing material remains at before entering shaping mold cavity and is flow regime below the curing temperature
Sizing material enters needle-valve 81 at runner 52 ends, and needle-valve 81 main bodys are positioned among coldplate and the thermal insulation board.The operator can be according to practical condition, and regulating piston promotes structure 91 and promotes piston push rod 92, and then promotes needle-valve adjusting rod 82 metering pin valves 81 apertures on the piston fixed head 93, changes runner 52 sizing material flows.The sizing material that the needle-valve discharging opening flows out arrives the shaping mold cavity moulding through cast gate 53.Because the effect of dividing plate plate and coldplate makes sprue 51 and runner 52 interior sizing materials still be flow regime and stays in the mould that can utilize once more during shot moulding instantly to be injected into becomes goods in the shaping mold cavity.
The present invention adopts cold runner mould injection moulding silicone rubber products, has not only guaranteed the product quality performance, has also saved the silicon rubber raw material greatly and has reduced labor strength, and production efficiency is further improved.
The foregoing description only is a preferred implementation of the present invention, and in addition, the present invention can also have other implementations.That is to say that under the prerequisite that does not break away from the present invention's design, any conspicuous replacement all should fall within protection scope of the present invention.
Claims (3)
1. cold runner silicon rubber forming die; Include lower bolster (1), cope match-plate pattern (2); Form shaping mold cavity between cope match-plate pattern and the lower bolster; Be provided with solid plate (3) on the cope match-plate pattern (2); Be provided with adaptor (4) in the solid plate; Be provided with sprue (51) in the adaptor (4); Sprue (51) bottom branch shape becomes runner (52); Runner (52) end is connected with needle-valve (81); The lower end discharging opening of needle-valve connects shaping mold cavity cast gate (53); The needle-valve upper end is connected with noticeable degree mechanism
It is characterized in that: lower bolster (1) and cope match-plate pattern (2) periphery are equipped with thermal insulation board, sprue bottom and the runner that is connected with the sprue bottom all place in the coldplate (6) with cooling cooling effect, and the needle-valve that is communicated with runner (81) main body is positioned among coldplate and the thermal insulation board.
2. cold runner silicon rubber forming die according to claim 1, it is characterized in that: described lower bolster (1) below is equipped with down thermal insulation board (72), the cope match-plate pattern top is equipped with thermal insulation board (71), and last thermal insulation board (71) is positioned at coldplate (6) periphery, is provided with the heat pipe (61) of negotiable heat transfer medium in the described coldplate (6).
3. cold runner silicon rubber forming die according to claim 1 and 2, it is characterized in that: described noticeable degree mechanism comprises that the piston that is installed on the solid plate (3) promotes structure (91), piston push rod (92), piston push rod (92) one ends connect piston and promote structure, the other end connects piston fixed head (93), also is provided with the needle-valve adjusting rod (82) of metering pin valve aperture on the piston fixed head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100419048A CN101633229B (en) | 2009-08-14 | 2009-08-14 | Cold runner silicon rubber forming die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100419048A CN101633229B (en) | 2009-08-14 | 2009-08-14 | Cold runner silicon rubber forming die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101633229A CN101633229A (en) | 2010-01-27 |
| CN101633229B true CN101633229B (en) | 2011-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100419048A Active CN101633229B (en) | 2009-08-14 | 2009-08-14 | Cold runner silicon rubber forming die |
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| Country | Link |
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| CN (1) | CN101633229B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102689426A (en) * | 2012-06-12 | 2012-09-26 | 深圳市精控机电有限公司 | Cylinder valve needle type cold runner injection molding system |
| CN102825730B (en) * | 2012-08-22 | 2015-04-08 | 厦门理工学院 | Modularized cold runner system |
| CN103522499A (en) * | 2013-10-25 | 2014-01-22 | 浙江苏泊尔橡塑制品有限公司 | Die used for making rubber products |
| CN106426803B (en) * | 2016-10-13 | 2019-05-10 | 清远市育群精密汽车部件有限公司 | Cold runner alternate form rubber projects mould |
| CN107030987A (en) * | 2016-12-30 | 2017-08-11 | 深圳市银宝山新科技股份有限公司 | Cold runner cast gate noticeable degree system |
| CN109228074A (en) * | 2018-09-13 | 2019-01-18 | 东莞星海丰电子有限公司 | The forming method and molding equipment of silica gel product |
| CN110076964A (en) * | 2019-06-10 | 2019-08-02 | 厦门豪特维思科技有限公司 | A kind of liquid-state silicon gel cold runner die |
| CN112519129B (en) * | 2020-12-04 | 2024-09-06 | 安徽特思通管路技术有限公司 | Rubber tube vulcanization mold structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1861366A (en) * | 2005-05-10 | 2006-11-15 | 株式会社普利司通 | Production of blade for office appliances |
| CN201169034Y (en) * | 2008-03-11 | 2008-12-24 | 青岛科技大学 | Cold runner rubber injecting molding die |
| JP2009101644A (en) * | 2007-10-24 | 2009-05-14 | Bridgestone Corp | Manufacturing method of oa blade |
| CN201494005U (en) * | 2009-08-14 | 2010-06-02 | 创乐电子实业（惠州）有限公司 | Cold runner silicon rubber forming die |
-
2009
- 2009-08-14 CN CN2009100419048A patent/CN101633229B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1861366A (en) * | 2005-05-10 | 2006-11-15 | 株式会社普利司通 | Production of blade for office appliances |
| JP2009101644A (en) * | 2007-10-24 | 2009-05-14 | Bridgestone Corp | Manufacturing method of oa blade |
| CN201169034Y (en) * | 2008-03-11 | 2008-12-24 | 青岛科技大学 | Cold runner rubber injecting molding die |
| CN201494005U (en) * | 2009-08-14 | 2010-06-02 | 创乐电子实业（惠州）有限公司 | Cold runner silicon rubber forming die |
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| Publication number | Publication date |
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| CN101633229A (en) | 2010-01-27 |
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Effective date of registration: 20151204 Address after: 516000 Guangdong Province, Huizhou city Huicheng District Shuikou Subdistrict Office Xinlian Road No. 20 Patentee after: Tongda Electromechanical industry (Huizhou) Co., Ltd. Address before: 516003 Huida industrial center, Longhu Development Zone, Huizhou, Guangdong Patentee before: Chuangle Electronics Industry (Huizhou) Co., Ltd. |
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Effective date of registration: 20190507 Address after: 516255 No. 24 Xinlian East Road, Shuikou Street Office, Huicheng District, Huizhou City, Guangdong Province Patentee after: Tongda science and Technology (Huizhou) Co., Ltd. Address before: No. 20 Xinlian East Road, Shuikou Street Office, Huicheng District, Huizhou City, Guangdong Province Patentee before: Tongda Electromechanical industry (Huizhou) Co., Ltd. |