CN205661000U - A device for liquid rubber injection moulding - Google Patents
A device for liquid rubber injection moulding Download PDFInfo
- Publication number
- CN205661000U CN205661000U CN201620238743.7U CN201620238743U CN205661000U CN 205661000 U CN205661000 U CN 205661000U CN 201620238743 U CN201620238743 U CN 201620238743U CN 205661000 U CN205661000 U CN 205661000U
- Authority
- CN
- China
- Prior art keywords
- injection
- needle
- rubber
- liquid rubber
- valve
- 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.)
- Expired - Fee Related
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- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The utility model discloses a device for liquid rubber injection moulding, including the slide core board, the slide core panel mounting have a plurality of needle valves, every needle valve all correspond one and penetrate the feed cylinder, every penetrate and all install circulating cooling water system on the feed cylinder, cooling system outside all be equipped with the protective sheath, every penetrate the feed cylinder bottom all install one the injection runner, every the injection runner all correspond a mould cavity, every needle valve upper portion all be equipped with the sealing ring, the sealing ring in all filled sealing material, this technical scheme's beneficial effect, the material oral area of thoroughly having solved in the no needle valve formula cold runner injection technology of penetrating leads to the fact extravagant image because of rubber solidification.
Description
Technical field
This utility model relates to mechanical mixing equipment field, a kind of for the injection molding dress of liquid rubber specifically
Put.
Background technology
Rubber industry is one of important foundation industry of national economy.The product category of rubber industry is various, in every profession and trade
In, use, according to industry or goods, the difference required, rubber is proposed more higher requirement.20th century 60,70
Age is rubber and the stage of plastics industry fast development, and a large amount of novel plastics and elastomeric material are developed, and push city to
?.The seventies, silicone rubber turned to civilian from military, and market expands rapidly.Owing to the die press technology for forming of firm silicone rubber exists all
Such as labour intensive, automaticity is low, and highly energy-consuming etc. problem has people just to expect: silicone rubber can be adopted as plastics
With injection moulding？Then begin one's study LIM silicon rubber from late 1970s internationally recognizable organosilicon enterprise
Glue.Mainly solve the technological difficulties such as mobility, physical and mechanical properties, safety operation time, injection technique.The end of the eighties, China opened
The development of beginning liquid silastic.From late 1980s, liquid silastic starts industrialized production, the most relatively
Expanding to increasing application for narrow application, nowadays liquid silastic has been applied to include automobile zero
Part, electric insulation, electronics, packaging for foodstuff, medical apparatus and instruments, health care, sports equipment, solar energy, optics, printer, war industry
Deng wide spectrum.At the beginning of 21 century, China starts the industrialized production of liquid silastic.Fall behind 10 years left sides compared with developed countries
The right side, but through the development of more than 10 years, China has become as liquid silastic, and worldwide production and consumption field could not
One strength ignored.Injection molding of rubber technique in the past mainly uses needle-free valve to be directly injected into product surface, rubber sulfur
After having changed, injection port position rubber the most and then have cured due to high temperature, so need the curing rubber of sprue to go every time
Remove, waste a lot of raw material, and troublesome poeration, be really wasting manpower and material resources's financial resources, be injected in the urgent need to improving liquid rubber
The production technology of type.
The liquid glue needle valve injection forming technology that this utility model relates to, utilizes the low glutinous of its rheology of liquid-state silicon gel
The characteristics such as degree, fast setting, shear shinning and higher thermal coefficient of expansion, use needle valve type cold runner injection molding apparatus,
Needle-valve is arranged on the surface of mold component, and when injection is complete, needle-valve closes nozzle immediately, it is to avoid leakage glue, and is prevented by needle-valve
Liquid rubber solidifies, and accurately controls the injection volume of rubber, and can in a large number, short vulcanization, the feature such as repeated machinery production.
Utility model content
This utility model purpose is to provide a kind of for the injection molding device of liquid rubber.
For reaching above-mentioned purpose, the technical scheme that this utility model is used is: a kind of for liquid rubber injection moulding
Device, including slip central layer, described slip central layer is equipped with multiple needle-valve, corresponding one of described each needle-valve is penetrated
Barrel, described each cylinder that shoots material is fitted with circulating water cooling system, is designed with protection set outside described cooling system,
An injection gate is installed in described each bottom that shoots material, the corresponding mold cavity of described each injection gate,
Described each needle-valve top is designed with sealing ring, is filled with encapsulant in described sealing ring.
Described one is used for the injection molding device of liquid rubber, it is characterised in that described injection gate cylinder passes through spiral shell
Stricture of vagina and a precision-fit that shoots material, it is ensured that material leakage is not the most conveniently detachable, and the programming rate of liquid rubber in barrel can be reduced.
When carrying out liquid rubber injection moulding operation, applied external force promotes slip central layer and drives needle-valve upwards to move
Dynamic, now needle-valve separates the passage opening injection gate with injection gate, and liquid rubber is pressed into this device and enters along runner
Shoot material cylinder, and quickly passes through injection gate entrance mold cavity, owing to liquid rubber the most quickly flowing can produce high temperature,
And the liquid rubber arrived while rubber sulfurizing temp in runner after mould heating also can easy solidification affected by the high temperature,
Causing liquid rubber to be difficult to follow-up circulation, so being mounted with water-cooling system on cylinder shooting material, and increasing outside water-cooling system
If protection set.When carrying out quick rubber injection process, liquid rubber is easily past with coordinating gap of mould from needle-valve
Upper spilling, so we are additionally arranged a sealing ring on this needle-valve top and packing matcrial stops rubber excessive.Work as die cavity
After Fast Filling is full, external force promotes rapidly needle-valve to move downwardly into injection gate, closes and cuts off runner, through after a while
Temperature-pressure, after liquid rubber vulcanizes completely in die cavity, so that it may take out perfect rubber product in die cavity.
Preferably, described needle-valve assembles and is fixed on slip central layer, can move up and down, in order to control liquid rubber
Circulation passage opens and closes.
The described cylinder that shoots material is provided with cooling system, and recirculated cooling water can reduce the temperature of the cylinder that shoots material, it is ensured that shoots material in cylinder
Rubber be in liquid all the time and do not solidify, keep runner unblocked.
Described cooling system is externally provided with protection set, can prevent from cooling down leaked water.
A described lower port that shoots material is furnished with injection gate, described injection gate and a screw thread close-fitting that shoots material, and has and does not leak
Material and the advantage of convenient disassembly.
Described injection gate, protection set are combined with certain gap with mould, and injection port spot temperature can be prevented too high.
Described needle-valve top is provided with sealing ring, packing matcrial in sealing ring, is used for stoping liquid rubber from needle-valve
Excessive with the gap of mould.
The beneficial effect of the technical program, thoroughly solves the oral area that shoots material in needleless valve type cold runner injection technique because of rubber
Adhesive curing and wasting image.Be also carried out simultaneously other related systems optimization process, it is ensured that liquid rubber not outside
Overflowing and waste, the goods rim charge of production is the most even without rim charge, good looking appearance.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation for the injection molding device of liquid rubber of this utility model
Detailed description of the invention
1 pair of this utility model is described in further detail below in conjunction with the accompanying drawings.
For reaching above-mentioned purpose, the technical scheme that this utility model is used is: a kind of for liquid rubber injection moulding
Device, including slip central layer 1, described slip central layer 1 is equipped with multiple needle-valve 2, the middle part of described needle-valve 2 dress
There is sealing ring 3.Packing matcrial 4 in described sealing ring 3, the lower end part of described needle-valve 2 coordinates with the cylinder 5 that shoots material to be made
With, equipped with water-cooling system 6 on the described cylinder 5 that shoots material, by protection set 7 sealing protection outside described water-cooling system 6, described
Shoot material cylinder 5 lower end and injection gate 8 close-fitting, and described injection gate 8 is connected to mold cavity 9.
When carry out liquid rubber injection moulding operation time, under outer inside casing active force first promote described in slip central layer 1 to
Upper motion, described slip central layer 1 drives the needle-valve 2 being connected to also move up, now described needle-valve 2 and described injection
Cast gate separates the passage opening injection gate, and liquid rubber is pressed into this device through external force and quickly passes through injection gate along runner
Fill full whole die cavity in entering mold cavity, and short time, owing to liquid rubber the most quickly flows, height can be produced
Rubber sulfurizing temp, the simultaneously easy solidification the most affected by the high temperature of the liquid rubber in runner is arrived after temperature, and mould heating,
Liquid rubber is caused to cannot be carried out follow-up circulation, so being mounted with described water-cooling system 6 on the described cylinder 5 that shoots material, logical
After crossing the cooling of recirculated water, the liquid rubber in runner would not solidify, but owing to the water capacity easily leaks, at described water
Set up outside cooling system 6 protection set 7 carry out seal protection guarantee being smoothed out of water-cooling system.Carrying out quick rubber injection mistake
Cheng Shi, liquid rubber easily up overflows with coordinating gap of mould from described needle-valve 2, so we are at the pin this described
Valve 2 top is additionally arranged a described sealing ring 3, and fills full encapsulant 4 in described sealing ring 3, prevents liquid
The material leakage of rubber.Described cylinder 5 lower end that shoots material is connected to described injection gate 8, described injection gate 8 by external screw thread with
The described cylinder 5 that shoots material closely cooperates, and described injection gate 8 and described protection set 7 have all stayed certain joining in device
Close gap, certain heat-blocking action can be played.After described die cavity 9 Fast Filling is full, external force promotes rapidly described needle-valve 2
Moving downwardly into described injection gate 8, close and cut off runner, heating through after a while, liquid rubber is described
In die cavity 9 after sulfuration completely, so that it may take out perfect rubber product in die cavity.
Claims (2)
1. one kind is used for the injection molding device of liquid rubber, it is characterised in that include slip central layer, on described slip central layer
It is equipped with multiple needle-valve, the corresponding cylinder that shoots material of each needle-valve, described each cylinder that shoots material is fitted with circulating water
System, is designed with protection set outside described cooling system, an injection gate, institute are installed in described each bottom that shoots material
The corresponding mold cavity of each injection gate stated, described each needle-valve top is designed with sealing ring, described sealing
Encapsulant it is filled with in ring.
One the most according to claim 1 is used for the injection molding device of liquid rubber, it is characterised in that described injection
Cast gate cylinder passes through screw thread and a precision-fit that shoots material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238743.7U CN205661000U (en) | 2016-03-23 | 2016-03-23 | A device for liquid rubber injection moulding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620238743.7U CN205661000U (en) | 2016-03-23 | 2016-03-23 | A device for liquid rubber injection moulding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205661000U true CN205661000U (en) | 2016-10-26 |
Family
ID=57162615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620238743.7U Expired - Fee Related CN205661000U (en) | 2016-03-23 | 2016-03-23 | A device for liquid rubber injection moulding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205661000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825666A (en) * | 2017-11-14 | 2018-03-23 | 中山市高远精密模具有限公司 | A kind of Vacuuming structure of mould |
| CN109878021A (en) * | 2019-02-27 | 2019-06-14 | 安徽省宁国宁阳量清模具科技有限公司 | A kind of cold runner die |
-
2016
- 2016-03-23 CN CN201620238743.7U patent/CN205661000U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107825666A (en) * | 2017-11-14 | 2018-03-23 | 中山市高远精密模具有限公司 | A kind of Vacuuming structure of mould |
| CN109878021A (en) * | 2019-02-27 | 2019-06-14 | 安徽省宁国宁阳量清模具科技有限公司 | A kind of cold runner die |
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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: 20161026 Termination date: 20200323 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |