CN206855838U - A kind of secondary preforming sulfurizing mould of rubber - Google Patents
A kind of secondary preforming sulfurizing mould of rubber Download PDFInfo
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- CN206855838U CN206855838U CN201720076748.9U CN201720076748U CN206855838U CN 206855838 U CN206855838 U CN 206855838U CN 201720076748 U CN201720076748 U CN 201720076748U CN 206855838 U CN206855838 U CN 206855838U
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- mould
- sulfurizing
- rubber
- preforming
- concave die
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Abstract
The utility model discloses a kind of secondary preforming sulfurizing mould of rubber, the preforming sulfurizing mould includes upper mould, middle mould and the lower mould for setting of working in coordination, the bottom of the upper mould is provided with forming convax mould, the top of the middle mould is provided with upper molding concave die, the bottom of the middle mould is provided with lower forming convax mould, the top of the lower mould is provided with lower molding concave die, several pilot holes are offered on the lower mould, coordinate the pilot hole to extend downwardly some leads in the bottom of the middle mould.The above-mentioned secondary preforming sulfurizing mould of rubber uses substep vulcanization, eliminates a series of existing war proclamations, the phenomenon that cloth is given a discount, cloth is offset, ensure that product quality, improve product qualification rate.
Description
Technical field
The utility model belongs to rubber sulfidization molding technology, secondary more particularly, to a kind of vacuum-pumping type rubber
Preforming sulfurizing mould.
Background technology
At present, for some specific rubbers (such as brake chamber barrier film), its section is mainly three-decker, bag
Include rubber layer, middle carcass and lower rubber layer.Such product line typically directly closes up pressurized, heated using upper and lower mould in the industry
Vulcanization sizing.So vulcanization out product easily make the skeleton adhesive plaster inside product exposed sizing material surface formed war proclamation,
And adhesive plaster is easily formed at the inside and outside R angles of product and offsets to form unilateral, to give a discount with adhesive plaster image generation, it is extremely difficult to controlled.
Utility model content
The purpose of this utility model is to provide a kind of rubber secondary preforming sulfurizing mould, and it can be greatly improved
The stability and qualification rate of product, to solve directly to close up pressurized, heated vulcanization sizing presence using upper and lower mould in the prior art
Above mentioned problem.
To use following technical scheme up to this purpose, the utility model：
A kind of secondary preforming sulfurizing mould of rubber, upper mould, middle mould and the lower mould of its setting that includes working in coordination, its
In, the bottom of the upper mould is provided with forming convax mould, the top of the middle mould is provided with upper molding concave die, in described
The bottom of mould is provided with lower forming convax mould, and the top of the lower mould is provided with lower molding concave die.
Especially, the upper mould is fixed on evacuated vulcanizer, and the lower mould is movably arranged at vacuum vulcanization machine
On, the middle mould is movably arranged between the upper mould and lower mould, and the middle mould is connected with it from upper mould and lower mould
Between the ejecting mechanism that ejects.
Especially, it is provided with guidance set between the middle mould and the lower mould.
Especially, the guidance set includes several pilot holes being opened on the lower mould, coordinates the pilot hole
Some leads have been extended downwardly in the bottom of the middle mould.
Especially, the upper mould, middle mould and lower mould are provided with independent heater.
The beneficial effects of the utility model are, compared with prior art the secondary preforming sulfurizing mould master of the rubber
Advantages below be present：
1) reliable product quality, thoroughly solve in process of production, product war proclamation is leaked caused by intermediate layer adhesive plaster gives a discount
The problem of gas, it is not placed in the middle and the situation that cloth is offset to one side occurs thoroughly to solve adhesive plaster；
2) stability of product：Upper and lower mould sizing material be all shift to an earlier date by grammes per square metre it is preforming good, in the absence of sizing material is excessive and mistake
Influence caused by few side height and wall thickness dimension to product；
3) raising of product quality and qualification rate：Using vulcanization process step by step, a series of existing war proclamation, cloth are eliminated
Give a discount, the phenomenon of cloth skew, these phenomenons have plenty of recessiveness in checkout procedure, and eyes can not be identified what is come, eliminate potential
Recessive security-hidden trouble.Inspection He Ge Shuai≤98.5% is once handed in the vulcanization of product, and qualification rate significantly improves；
4) the resistance to special characteristics such as circumnutate of product is better than one-shot forming product.
Brief description of the drawings
Fig. 1 is that the structure for the secondary preforming sulfurizing mould of rubber that the utility model embodiment 1 provides is shown
It is intended to；
Fig. 2 is the matched moulds shape for the secondary preforming sulfurizing mould of rubber that the utility model embodiment 1 provides
State figure；
Fig. 3 be the utility model embodiment 1 provide the secondary preforming sulfurizing mould of rubber upper mould and
The matched moulds state diagram of lower mould.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
Refer to shown in Fig. 1 to Fig. 3, in the present embodiment, a kind of secondary preforming sulfurizing mould of rubber is used to process
Brake chamber barrier film, it is arranged on 250T--3RT tonnage evacuated vulcanizer, including the upper mould 1 for setting of working in coordination, in
Mould 2 and lower mould 3, the bottom of the upper mould 1 are provided with forming convax mould 10, corresponding to the middle mould 2 top be provided with into
Type cavity plate 20, the bottom of the middle mould 2 are provided with lower forming convax mould 21, and the top of the lower mould 3 is provided with lower shaping
Cavity plate 30, the upper mould 1 are fixed on evacuated vulcanizer, and the lower mould 3 is movably arranged on vacuum vulcanization machine, described
Middle mould 2 is movably arranged between the upper mould 1 and lower mould 3, and the middle mould 2 be connected with by its from upper mould 1 and lower mould 3 it
Between the ejecting mechanism that ejects.
Guidance set is provided between the middle mould 2 and the lower mould 3.The guidance set includes being opened in the lower mould
Several pilot holes 31 on 3, the pilot hole 31 is coordinated to extend downwardly some leads in the bottom of the middle mould 2
22。
The above-mentioned secondary preforming specific sulfuration process of sulfurizing mould of rubber is：
1) sizing material pre-setting：Sizing material, upper mould 1, middle mould 2 and lower mould are placed on upper molding concave die 20 and lower molding concave die 30
3, which close up pressurized, heated, carries out one-step building vulcanization, respectively at the upper rubber layer of formation in upper molding concave die 20 and lower molding concave die 30
With lower rubber layer；The specific action process of mould is：Middle mould declines --- middle mould and lower mould matched moulds --- main frame and rises upper, middle and lower
Mould matched moulds pressurizes ----exhaust ---, and one-step building vulcanizes, and one-step building cure time is 25 ± 5 seconds, after one-step building terminates, if
It is standby automatic：Main frame declines the middle mould ejection propradation of upper mould separation --- shifting formwork goes out ---.Clamping pressure is controlled in 13 ± 2MPa；Institute
Mould 1 and the lower temperature control of mould 3 are stated at 155 ± 5 DEG C, the middle temperature control of mould 2 is at 60 DEG C~80 DEG C；
2) adhesive plaster pre-setting：In lower rubber layer in lower molding concave die 30 uniformly place adhesive plaster, upper mould 1, middle mould 2 and under
Mould 3 closes up pressurized, heated and carries out secondary first cure, adhesive plaster is bonded with lower rubber layer；The specific action process of mould is：In
Mould declines --- middle mould and lower mould matched moulds --- main frame rising upper, middle and lower mould matched moulds pressurization --- exhaust -- secondary first cure, and two
The secondary first cure time is 15 ± 5 seconds.After secondary sizing terminates, equipment is automatic：Main frame declines --- shifting formwork goes out --- middle mould ejection
Propradation；
3) product vulcanization sizing：Middle mould 2 is ejected between upper mould 1 and lower mould 3, the upper mould 1 closes up with the lower mould 3
Pressurized, heated carries out product vulcanization, makes rubber layer be bonded to form final products with being bonded the lower rubber layer of adhesive plaster.Mould is specific
Action process be：Middle mould stops, and --- lower mould shifting formwork enters, and -- main frame rising --- pressure exhaust --- vulcanizes, and curing temperature control exists
155±5℃；Sulfide stress is controlled in 18 ± 1MPa.
Above example simply elaborates general principle and characteristic of the present utility model, and the utility model is not by above-mentioned example
Limitation, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various change and change, these changes
Change and change and both fall within claimed the scope of the utility model.The utility model requires protection scope will by appended right
Ask book and its equivalent thereof.
Claims (3)
1. a kind of secondary preforming sulfurizing mould of rubber, it is characterised in that upper mould, the middle mould of its setting that includes working in coordination
With lower mould, the bottom of the upper mould is provided with forming convax mould, and the top of the middle mould is provided with upper molding concave die, institute
The bottom for stating middle mould is provided with lower forming convax mould, the top of the lower mould is provided with lower molding concave die, the upper mould is consolidated
Due on evacuated vulcanizer, the lower mould is movably arranged on vacuum vulcanization machine, and the middle mould is movably arranged at
Between the upper mould and lower mould, and the middle mould is connected with the ejecting mechanism for ejecting it between upper mould and lower mould, it is described on
Mould, middle mould and lower mould are provided with independent heater.
2. the secondary preforming sulfurizing mould of rubber according to claim 1, it is characterised in that the middle mould with it is described
Guidance set is provided between lower mould.
3. the secondary preforming sulfurizing mould of rubber according to claim 2, it is characterised in that the guidance set bag
Several pilot holes being opened on the lower mould are included, coordinate the pilot hole to be extended downwardly in the bottom of the middle mould some
Root lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076748.9U CN206855838U (en) | 2017-01-20 | 2017-01-20 | A kind of secondary preforming sulfurizing mould of rubber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720076748.9U CN206855838U (en) | 2017-01-20 | 2017-01-20 | A kind of secondary preforming sulfurizing mould of rubber |
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| Publication Number | Publication Date |
|---|---|
| CN206855838U true CN206855838U (en) | 2018-01-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720076748.9U Active CN206855838U (en) | 2017-01-20 | 2017-01-20 | A kind of secondary preforming sulfurizing mould of rubber |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943515A (en) * | 2018-06-15 | 2018-12-07 | 中国航天员科研训练中心 | A kind of thermoplastic polyurethane component integral forming method using compression molding equipment |
| CN109940832A (en) * | 2019-04-10 | 2019-06-28 | 安徽同发设备股份有限公司 | A kind of more specification multilayer pressure injection molds of pipeline leakage plugging device rubber pad |
-
2017
- 2017-01-20 CN CN201720076748.9U patent/CN206855838U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108943515A (en) * | 2018-06-15 | 2018-12-07 | 中国航天员科研训练中心 | A kind of thermoplastic polyurethane component integral forming method using compression molding equipment |
| CN108943515B (en) * | 2018-06-15 | 2020-07-14 | 中国航天员科研训练中心 | Integral forming method of thermoplastic polyurethane component by using plate vulcanizing equipment |
| CN109940832A (en) * | 2019-04-10 | 2019-06-28 | 安徽同发设备股份有限公司 | A kind of more specification multilayer pressure injection molds of pipeline leakage plugging device rubber pad |
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