CN103707441B - A kind of curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm and manufacture method - Google Patents
A kind of curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm and manufacture method Download PDFInfo
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- CN103707441B CN103707441B CN201310743444.XA CN201310743444A CN103707441B CN 103707441 B CN103707441 B CN 103707441B CN 201310743444 A CN201310743444 A CN 201310743444A CN 103707441 B CN103707441 B CN 103707441B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/345—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using matched moulds
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- Diaphragms And Bellows (AREA)
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Abstract
The invention discloses a kind of curing forming mold and manufacture method of special-shaped saturated nitrile rubber folder cloth diaphragm, belong to rubber folder cloth products technical field.The present invention includes mould and lower mould in upper mould, mould, the bottom of upper mould is outwardly rotary body; In mould, mould offers the trapezoidal hole of vertical direction, the bottom of trapezoidal hole side offers arc section; The top of lower mould is outwardly Rotary-table, in mould, die sleeve is located at the Rotary-table periphery of lower mould, mould and lower mould matched in clearance in this mould, Rotary-table inside offers the die cavity caved inward, and the structure of this die cavity matches with the rotary body of upper mould.Its manufacturing step is: prepare fabric folder cloth and diaphragm body sizing material; In mould, mold pressing lives fabric folder cloth and fabric is pressed from both sides cloth to tighten; Sulfidization molding.The invention solves special-shaped saturated nitrile rubber folder cloth diaphragm goods crumple and press from both sides the problem of cloth fracture, improve the qualification rate of special-shaped saturated nitrile rubber folder cloth diaphragm.
Description
Technical field
The invention belongs to rubber folder cloth products technical field, more particularly, relate to a kind of curing forming mold and manufacture method of special-shaped saturated nitrile rubber folder cloth diaphragm.
Background technology
Rubber fabric clamped film sheet is for the rubber seal in automobile filter, this product must have the dynamic resilience performance under excellent oil resistance and low temperature, and after this product surrounding assembling compression, heat-resisting, endurance bending 100,000 maintenance permanent seal performances must be had.In current industry, due to the restriction of domestic production technology, abnormity saturated nitrile rubber folder cloth diaphragm production efficiency is low, percent defective is high, and in production technology, often can not meet automobile filter industry support the use requirement, thus cause special-shaped saturated butyronitrile folder cloth diaphragm to maintain straight through import at processing link one.Domestic also do not have enterprise can efficiently, the qualified products of the production of low cost abnormity saturated nitrile rubber folder cloth diaphragm; In addition, external production efficiency neither be very high.
The special-shaped saturated nitrile rubber used as rubber seal in automobile filter in prior art presss from both sides cloth diaphragm structure schematic diagram as shown in Figure 1, this special-shaped saturated nitrile rubber folder cloth diaphragm presss from both sides cloth 82 by internal layer diaphragm body 81, fabric from the inside to the outside and outer diaphragm body 83 three-decker forms, in irregular Rotary-table structure on its appearance integral, its special-shaped side is by being made up of body first segmental arc 71, body second segmental arc 72, body the 3rd segmental arc 73, body the 4th segmental arc 74 and body the 5th segmental arc 75 successively from top to bottom, and bottom is planar structure.Due to the structural particularity of this special-shaped saturated nitrile rubber folder cloth diaphragm, it is crumpled and fabric folder cloth breakage problem is a key technical problems in production process, the position of easily crumpling often occurs in special-shaped side and bottom corners place, as fruit product crumple or fabric folder cloth fracture in use very easily breakage cause component failure.Through experimental analysis, goods are crumpled and the fracture of fabric folder cloth is because fabric folder cloth is caused by sulfidation fabric folder cloth discontinuity, how solving special-shaped saturated nitrile rubber folder cloth diaphragm goods to crumple and fabric folder cloth breakage problem, is industrial production problem anxious to be resolved.
By patent retrieval, the technical scheme about rubber fabric clamped film sheet manufacture method is existing open.As Chinese Patent Application No.: 201110455373.4, denomination of invention is: the patent document of rubber fabric clamped film sheet and manufacture method thereof, the manufacturing step of this application case comprises: (1), prepare sheet rubber, metallic framework, enhancing tissue layer in upper and lower two-layer outer rubber sheet, upper, middle and lower three layers, and the center-hole diameter of described outer rubber sheet mates with the outside diameter of interior sheet rubber and the thickness of two-layer interior sheet rubber is less than or equal to the thickness of one deck outer rubber sheet; The centre bore of described inner rubber layer is consistent with the center-hole diameter of metallic framework; (2) sheet rubber in sheet rubber, metallic framework, middle level, will to be placed in lower floor's outer rubber sheet, lower floor from bottom to top successively, will strengthen sheet rubber, upper strata outer rubber sheet in tissue layer, upper strata; Make the centre bore of interior sheet rubber and the central aperture of metallic framework, and the central aperture of the cylindrical of interior sheet rubber and outer rubber sheet; (3), molded vulcanization is shaping; (4), to diaphragm endoporus carry out grinding, then grinding is carried out to diaphragm outer rim, obtain rubber fabric clamped film sheet.This application case for be the rubber fabric clamped film sheet of regular shape, its processing method needs to process folder cloth, need to carry out grinding after goods machine and just can reach requirement, for the rubber fabric clamped film sheet of abnormity, adopt the technical scheme of this application case to use, and goods cannot be solved crumple and fabric folder cloth breakage problem.
Summary of the invention
1. invent the technical problem that will solve
Crumple the problem that distortion, folder cloth rupture in the surface that the object of the invention is to overcome special-shaped saturated nitrile rubber folder cloth diaphragm in prior art, provide a kind of curing forming mold and manufacture method of special-shaped saturated nitrile rubber folder cloth diaphragm, adopt technical scheme of the present invention to solve the problem.
2. technical scheme
For achieving the above object, technical scheme provided by the invention is:
The curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present invention, comprise mould and lower mould in upper mould, mould, wherein: the bottom of described upper mould is outwardly rotary body, the side in this rotary body cross section comprises patrix first segmental arc, patrix second segmental arc, patrix the 3rd segmental arc, patrix the 4th segmental arc and patrix the 5th segmental arc that connect successively from top to down, and the bottom surface of above-mentioned rotary body is planar structure; In described mould, the upper surface of mode cross section and lower surface are the planar structure be parallel to each other, in this mould, mould offers the trapezoidal hole of vertical direction, the end face aperture of trapezoidal hole is less than the aperture of bottom surface, the side of this trapezoidal hole and the angle of vertical curve are α, and the bottom of described trapezoidal hole side offers arc section; The top of described lower mould is outwardly Rotary-table, the top diameter of this Rotary-table is less than the diameter of bottom, the side of this Rotary-table and the angle of vertical curve are α, and in described mould, die sleeve is located at the Rotary-table periphery of lower mould, mould and lower mould matched in clearance in this mould; Above-mentioned Rotary-table inside offers the die cavity caved inward, the structure of this die cavity matches with the rotary body of upper mould, mold pressing in mould is combined between upper mould and lower mould by above-mentioned upper mould, the side in this die cavity cross section comprises counterdie first segmental arc, counterdie second segmental arc, counterdie the 3rd segmental arc, counterdie the 4th segmental arc and counterdie the 5th segmental arc that connect successively from top to down, and the bottom surface of above-mentioned die cavity is planar structure.
As further improvement of the present invention, the end face of described lower mould Rotary-table offers torn edges groove, and this torn edges slot is in the periphery of die cavity end face.
As further improvement of the present invention, in described mould, in mould, in the angle α of the side of trapezoidal hole and vertical curve, lower mould, the side of Rotary-table and the angle α of vertical curve are 8 °.
As further improvement of the present invention, in described mould, in mould, the arc radius of the bottom arc section of trapezoidal hole side is 4 ~ 6mm.
The manufacture method of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present invention, the steps include:
Step one, preparation fabric folder cloth and diaphragm body sizing material
Size according to the curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm cuts fabric folder cloth, uses rubber preforming machine to cut the material embryo of internal layer diaphragm body and outer diaphragm body; The curing forming mold of described special-shaped saturated nitrile rubber folder cloth diaphragm comprises mould and lower mould in upper mould, mould, wherein: the bottom of described upper mould is outwardly rotary body, the side in this rotary body cross section comprises patrix first segmental arc, patrix second segmental arc, patrix the 3rd segmental arc, patrix the 4th segmental arc and patrix the 5th segmental arc that connect successively from top to down, and the bottom surface of above-mentioned rotary body is planar structure; In described mould, the upper surface of mode cross section and lower surface are the planar structure be parallel to each other, in this mould, mould offers the trapezoidal hole of vertical direction, the end face aperture of trapezoidal hole is less than the aperture of bottom surface, the side of this trapezoidal hole and the angle of vertical curve are α, and the bottom of described trapezoidal hole side offers arc section; The top of described lower mould is outwardly Rotary-table, the top diameter of this Rotary-table is less than the diameter of bottom, the side of this Rotary-table and the angle of vertical curve are α, and in described mould, die sleeve is located at the Rotary-table periphery of lower mould, mould and lower mould matched in clearance in this mould; Above-mentioned Rotary-table inside offers the die cavity caved inward, the structure of this die cavity matches with the rotary body of upper mould, mold pressing in mould is combined between upper mould and lower mould by above-mentioned upper mould, the side in this die cavity cross section comprises counterdie first segmental arc, counterdie second segmental arc, counterdie the 3rd segmental arc, counterdie the 4th segmental arc and counterdie the 5th segmental arc that connect successively from top to down, and the bottom surface of above-mentioned die cavity is planar structure;
Step 2, filler, paving cloth, compress
The curing forming mold of the special-shaped saturated nitrile rubber folder cloth diaphragm in step one is assembled on vulcanizer, and internal layer diaphragm body material embryo step one prepared and outer diaphragm body material embryo fill out the cloth inserted upper and lower both sides of fabric in step one, above-mentioned internal layer diaphragm body material embryo, fabric folder cloth and outer diaphragm body material embryo are all positioned at the die cavity of lower mould, in mould, mold pressing lives fabric folder cloth and fabric is pressed from both sides cloth to tighten, then is matched with lower mould by upper mould;
Step 3, sulfidization molding
After step 2 prepares, start sulfidization molding, when vulcanizer drives and lower mould is pressed, under the effect of fabric folder cloth mould in a mold, be slidably full of the die cavity of lower mould; The curing temperature of vulcanizer controls to be 160 ~ 180 DEG C, and it is 8 ~ 10 minutes that cure time controls, and it is 8 ~ 12MPa that sulfide stress controls, and completes goods processing after sulfuration terminates, and obtains special-shaped saturated nitrile rubber folder cloth diaphragm.
Further, the material embryo of described internal layer diaphragm body and outer diaphragm body is made up of according to parts by weight following component:
Further, described fabric folder cloth is terylene elastical cloth, and the cloth inserted order number of fabric is 24 orders, and the cloth inserted thickness of fabric is 0.2 ~ 0.4mm.
3. beneficial effect
Adopt technical scheme provided by the invention, compared with prior art, there is following remarkable result:
(1) curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present invention, in its mould, mould offers the trapezoidal hole of vertical direction, the side of this trapezoidal hole and the angle of vertical curve are α, and the bottom of trapezoidal hole side offers arc section, mould and lower mould matched in clearance in mould in the present invention, mould in the mould of unique design of the present invention is relied on to carry out spacing to fabric folder cloth, make fabric press from both sides cloth to be tightened equably by mould in mould, and surface is without wrinkle phenomenon, thus there is the phenomenon of crumpling and pressing from both sides cloth fracture in the goods avoided dexterously after sulfuration, improve the qualification rate of special-shaped saturated nitrile rubber folder cloth diaphragm,
(2) manufacture method of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present invention, have employed the curing forming mold of the special-shaped saturated nitrile rubber folder cloth diaphragm of unique design of the present invention, mould and lower mould matched in clearance in its mould, and fabric folder cloth adopts terylene elastical cloth, when making vulcanizer driving lower mould is pressed, the die cavity of lower mould slidably can be full of under the effect of fabric folder cloth mould in a mold, thus ensure that the uniformity that fabric folder cloth is stressed, thoroughly solve special-shaped saturated nitrile rubber folder cloth diaphragm goods crumple and press from both sides the problem of cloth fracture,
(3) manufacture method of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present invention, its fabric folder cloth adopts terylene elastical cloth, and the cloth inserted thickness of fabric is 0.2 ~ 0.4mm, in the present invention, fabric folder cloth does not need to carry out any process, internal layer diaphragm body material embryo and outer diaphragm body material embryo directly penetrate fabric folder cloth and are bonded together, only need to carry out deburring after the sulfuration of abnormity saturated nitrile rubber folder cloth diaphragm completes, do not need to carry out the secondary process such as grinding, greatly reduce the manufacturing procedure of product, improve the production efficiency of product;
(4) manufacture method of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present invention, the material embryo of its internal layer diaphragm body and outer diaphragm body adopts specific component in the present invention to form and sulfuration process, and in conjunction with the present invention's specific fabric folder cloth, it is consistent for ensure that fabric folder cloth extends in sulfidation, the abnormity saturated nitrile rubber folder cloth diaphragm when sulfuration can be effectively avoided to occur crumpling and problem on deformation, ensure that the requirement of endurance bending 100,000 times simultaneously, and there is the dynamic resilience performance under excellent oil resistance and low temperature.
Accompanying drawing explanation
Fig. 1 is the profile of the special-shaped saturated nitrile rubber folder cloth diaphragm utilizing manufacture method of the present invention to process;
Fig. 2 is the profile of the curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present invention;
Fig. 3 is the profile of upper mould in the present invention;
Fig. 4 is the profile of mould in mould in the present invention;
Fig. 5 is the profile of lower mould in the present invention.
Label declaration in schematic diagram: 1, upper mould; 41, patrix first segmental arc; 42, patrix second segmental arc; 43, patrix the 3rd segmental arc; 44, patrix the 4th segmental arc; 45, patrix the 5th segmental arc; 2, mould in mould; 21, arc section; 3, lower mould; 51, counterdie first segmental arc; 52, counterdie second segmental arc; 53, counterdie the 3rd segmental arc; 54, counterdie the 4th segmental arc; 55, counterdie the 5th segmental arc; 6, torn edges groove; 71, body first segmental arc; 72, body second segmental arc; 73, body the 3rd segmental arc; 74, body the 4th segmental arc; 75, body the 5th segmental arc; 81, internal layer diaphragm body; 82, fabric folder cloth; 83, outer diaphragm body.
Detailed description of the invention
For understanding content of the present invention further, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
By reference to the accompanying drawings, the curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present embodiment, to comprise in upper mould 1, mould mould 2 and lower mould 3(as shown in Figure 2).The bottom of the upper mould 1 of the present embodiment is outwardly rotary body (as shown in Figure 3), the side in this rotary body cross section comprises patrix first segmental arc 41, patrix second segmental arc 42, patrix the 3rd segmental arc 43, patrix the 4th segmental arc 44 and patrix the 5th segmental arc 45 that connect successively from top to down, and the bottom surface of above-mentioned rotary body is planar structure.Patrix first segmental arc 41 in the present embodiment, patrix second segmental arc 42, patrix the 3rd segmental arc 43, patrix the 4th segmental arc 44, patrix the 5th segmental arc 45 and special-shaped saturated nitrile rubber press from both sides body first segmental arc 71 in cloth diaphragm (as shown in Figure 1), body second segmental arc 72, body the 3rd segmental arc 73, body the 4th segmental arc 74, body the 5th segmental arc 75 one_to_one corresponding, specifically in the present embodiment: the arc radius of patrix first segmental arc 41 is 0.50mm, the arc radius of patrix second segmental arc 42 is 4.80mm, the arc radius of patrix the 3rd segmental arc 43 is 1.64mm, the arc radius of patrix the 4th segmental arc 44 is 4.09mm, the arc radius of patrix the 5th segmental arc 45 is 1.84mm.
In the mould of the present embodiment, the upper surface in mould 2 cross section and lower surface are the planar structure (as shown in Figure 4) be parallel to each other, in this mould, mould 2 offers the trapezoidal hole of vertical direction, the end face aperture of trapezoidal hole is less than the aperture of bottom surface, the side of this trapezoidal hole and the angle of vertical curve are α, the bottom of described trapezoidal hole side offers arc section 21, the concrete side of trapezoidal hole and the angle α of vertical curve are in the present embodiment 8 °, and the arc radius of the bottom arc section 21 of trapezoidal hole side is 6mm.
The top of the lower mould 3 of the present embodiment is outwardly Rotary-table (as shown in Figure 5), the top diameter of this Rotary-table is less than the diameter of bottom, the side of this Rotary-table and the angle of vertical curve are α, in described mould, mould 2 is set in the Rotary-table periphery of lower mould 3, mould 2 and lower mould 3 matched in clearance in this mould, the side of the Rotary-table in the present embodiment and the angle α of vertical curve are 8 °, in the present embodiment, in mould, in mould 2, the inclined side of trapezoidal hole matches with the inclined side of Rotary-table on lower mould 3, and the bottom design arc section 21 of trapezoidal hole side in mould 2 in a mold, when making to press on vulcanizer driving lower mould 3, the die cavity of lower mould 3 slidably can be full of under impelling fabric to press from both sides the effect of cloth 82 mould 2 in a mold dexterously, thus ensure that the uniformity that fabric folder cloth 82 is stressed, this is one of improvement of giving prominence to of the present invention.In mould, mould 2 is as follows at the present embodiment imbody with the design of lower mould 3 matched in clearance: in mould, in mould 2, the bottom part aperture diameter of trapezoidal hole side is 85mm, on lower mould 3 Rotary-table inclined side bottom diameter be 80mm.
Rotary-table inside in the present embodiment offers the die cavity caved inward, and the end face of Rotary-table offers torn edges groove 6, and this torn edges groove 6 is positioned at the periphery of die cavity end face, and the torn edges groove 6 in the present embodiment is semicircular structure, and its radius is 1mm.In the present embodiment, the structure of die cavity matches with the rotary body of upper mould 1, mould in mould 2 is pressed together between upper mould 1 and lower mould 3 by above-mentioned upper mould 1, the side in this die cavity cross section comprises counterdie first segmental arc 51, counterdie second segmental arc 52, counterdie the 3rd segmental arc 53, counterdie the 4th segmental arc 54 and counterdie the 5th segmental arc 55 that connect successively from top to down, and the bottom surface of above-mentioned die cavity is planar structure.Counterdie first segmental arc 51 in the present embodiment, counterdie second segmental arc 52, counterdie the 3rd segmental arc 53, counterdie the 4th segmental arc 54, counterdie the 5th segmental arc 55 and special-shaped saturated nitrile rubber press from both sides body first segmental arc 71 in cloth diaphragm (as shown in Figure 1), body second segmental arc 72, body the 3rd segmental arc 73, body the 4th segmental arc 74, body the 5th segmental arc 75 one_to_one corresponding, specifically in the present embodiment: the arc radius of counterdie first segmental arc 51 is 1.02mm, the arc radius of counterdie second segmental arc 52 is 3.58mm, the arc radius of counterdie the 3rd segmental arc 53 is 2.86mm, the arc radius of counterdie the 4th segmental arc 54 is 3.07mm, the arc radius of counterdie the 5th segmental arc 55 is 2.86mm.
Adopt the curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present embodiment, the step of its manufacture method is specific as follows:
Step one, preparation fabric folder cloth and diaphragm body sizing material
Size according to the curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm cuts fabric folder cloth 82, be specially in the present embodiment: the size that the size of fabric folder cloth 82 and special-shaped saturated nitrile rubber press from both sides the curing forming mold of cloth diaphragm cuts according to 1:1, in the present embodiment, fabric folder cloth 82 is of a size of 380mm × 380mm, fabric folder cloth 82 is terylene elastical cloth, the order number of fabric folder cloth 82 is 24 orders, the thickness of fabric folder cloth 82 is 0.3mm, and the manufacturer of this terylene elastical cloth is that Wujiang, Suzhou is with positive glass fibre Co., Ltd.Rubber preforming machine is used to cut the material embryo of internal layer diaphragm body 81 and outer diaphragm body 83, in the present embodiment, the material embryo of internal layer diaphragm body 81 and outer diaphragm body 83 all adopts thickness to be 3 ~ 5mm, weight is the square material embryo of 4 ~ 4.5 grams, the material embryo of this internal layer diaphragm body 81 and outer diaphragm body 83 forms according to parts by weight by following component: saturated nitrile rubber: 95 parts, carbon black: 60 parts, precipitated calcium carbonate: 13 parts, zinc oxide: 6 parts, LNBR: 8 parts, accelerant CZ: 1.1 parts, promoter TT:1.0 part, sulphur: 0.4 part, the two 25:4 part of vulcanizing agent, promoter TAC:2 part.
The rubber of the saturated nitrile rubber in the present embodiment is Nippon Zeon Co., Ltd. ZP2020L; Carbon black is that the N330 high wear-resistant carbon black supplied by Cabot Chemical Co., Ltd. or N550 extrude carbon black soon; Precipitated calcium carbonate is supplied by Omya Fine Chemical Co., Ltd; Zinc oxide is supplied by Zhenjiang plain boiled water Chemical Co., Ltd.; LNBR is the DN601 LNBR supplied by Nippon Zeon Co., Ltd.; Accelerant CZ, promoter TT and sulphur are all supplied by Ya Teman Chemical Co., Ltd.; Vulcanizing agent two 25 is supplied by Mei Xing Chemical Co., Ltd. of Laiwu in Shandong province; Promoter TAC is supplied by Shanghai brightness Fine Chemical Co., Ltd.
The present embodiment, by the design to formula, makes material have higher intensity, the dynamic resilience under excellent oil resistance and low temperature, thus ensure that the requirement of endurance bending 100,000 times, and its performance parameter is specifically as shown in table 1.
Testing of materials performance in table 1 embodiment 1
Step 2, filler, paving cloth, compress
The curing forming mold of the special-shaped saturated nitrile rubber folder cloth diaphragm in step one is assembled on vulcanizer, and internal layer diaphragm body 81 material embryo step one prepared and outer diaphragm body 83 material embryo fill out the both sides up and down of fabric folder cloth 82 in step one, above-mentioned internal layer diaphragm body 81 material embryo, fabric folder cloth 82 and outer diaphragm body 83 material embryo are all positioned at the die cavity of lower mould 3, in mould, mould 2 is pushed down fabric folder cloth 82 and fabric is pressed from both sides cloth 82 and tightens, and without crumpling, then upper mould 1 is matched with lower mould 3;
Step 3, sulfidization molding
After step 2 prepares, start sulfidization molding, when vulcanizer drives and lower mould 3 is pressed, under the effect of fabric folder cloth 82 mould 2 in a mold, be slidably full of the die cavity of lower mould 3; The curing temperature of vulcanizer controls to be 175 DEG C, it is 8 minutes that cure time controls, sulfide stress controls as 10MPa, goods processing is completed after sulfuration terminates, obtain special-shaped saturated nitrile rubber folder cloth diaphragm (as shown in Figure 1), the special-shaped saturated nitrile rubber folder cloth diaphragm wall thickness that the present embodiment obtains is 1.2mm.The present embodiment according to the demand of special-shaped saturated nitrile rubber folder cloth diaphragm, can carry out open more than one piece mould and carries out sulfuration processing, thus greatly improve the production efficiency of product.
Embodiment 2
The curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present embodiment, its basic structure is with embodiment 1, and difference is: in mould, in mould 2, the arc radius of the bottom arc section 21 of trapezoidal hole side is 4mm.The manufacture method of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present embodiment, its basic preparation process is with embodiment 1, and difference is: in step one, the thickness of fabric folder cloth 82 is 0.2mm; The material embryo of internal layer diaphragm body 81 and outer diaphragm body 83 is made up of according to parts by weight following component: saturated nitrile rubber: 100 parts, carbon black: 70 parts, precipitated calcium carbonate: 15 parts, zinc oxide: 8 parts, LNBR: 10 parts, accelerant CZ: 1.5 parts, promoter TT:1.5 part, sulphur: 0.5 part, the two 25:5 part of vulcanizing agent, promoter TAC:4 part; In step 3, the curing temperature of vulcanizer controls to be 180 DEG C, and it is 9 minutes that cure time controls, and sulfide stress controls, for 8MPa, to complete goods processing after sulfuration terminates, and obtains special-shaped saturated nitrile rubber folder cloth diaphragm.
Embodiment 3
The curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present embodiment, its basic structure is with embodiment 1, and difference is: in mould, in mould 2, the arc radius of the bottom arc section 21 of trapezoidal hole side is 5mm.The manufacture method of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present embodiment, its basic preparation process is with embodiment 1, and difference is: the thickness of step one fabric folder cloth 82 is 0.4mm; The material embryo of internal layer diaphragm body 81 and outer diaphragm body 83 is made up of according to parts by weight following component: saturated nitrile rubber: 90 parts, carbon black: 50 parts, precipitated calcium carbonate: 10 parts, zinc oxide: 5 parts, LNBR: 5 parts, accelerant CZ: 0.5 part, promoter TT:0.5 part, sulphur: 0.3 part, the two 25:2 part of vulcanizing agent, promoter TAC:1 part; In step 3, the curing temperature of vulcanizer controls to be 160 DEG C, and it is 10 minutes that cure time controls, and sulfide stress controls, for 12MPa, to complete goods processing after sulfuration terminates, and obtains special-shaped saturated nitrile rubber folder cloth diaphragm.
Embodiment 1 ~ 3, mould 2 pairs of fabric folder cloth 82 in the mould of unique design of the present invention are relied on to carry out spacing, make fabric press from both sides cloth 82 to be tightened equably by mould in mould 2, and surface is without wrinkle phenomenon, when making vulcanizer driving lower mould 3 is pressed, the die cavity of lower mould 3 slidably can be full of under the effect of fabric folder cloth 82 mould 2 in a mold, thus ensure that the uniformity that fabric folder cloth 82 is stressed, thoroughly solve special-shaped saturated nitrile rubber folder cloth diaphragm goods crumple and press from both sides the problem of cloth fracture, improve the qualification rate of special-shaped saturated nitrile rubber folder cloth diaphragm.
Schematically above be described the present invention and embodiment thereof, this description does not have restricted, and also just one of the embodiments of the present invention shown in accompanying drawing, actual structure is not limited thereto.So, if those of ordinary skill in the art enlightens by it, when not departing from the invention aim, designing the frame mode similar to this technical scheme and embodiment without creationary, all should protection scope of the present invention be belonged to.
Claims (2)
1. a curing forming mold for special-shaped saturated nitrile rubber folder cloth diaphragm, comprises upper mould (1) and lower mould (3), it is characterized in that, also comprise mould in mould (2), wherein:
The bottom of described upper mould (1) is outwardly rotary body, the side in this rotary body cross section comprises patrix first segmental arc (41), patrix second segmental arc (42), patrix the 3rd segmental arc (43), patrix the 4th segmental arc (44) and the patrix the 5th segmental arc (45) that connect successively from top to down, and the bottom surface of above-mentioned rotary body is planar structure;
In described mould, the upper surface in mould (2) cross section and lower surface are the planar structure be parallel to each other, in this mould, mould (2) offers the trapezoidal hole of vertical direction, the end face aperture of trapezoidal hole is less than the aperture of bottom surface, the side of this trapezoidal hole and the angle of vertical curve are α, and the bottom of described trapezoidal hole side offers arc section (21);
The top of described lower mould (3) is outwardly Rotary-table, the top diameter of this Rotary-table is less than the diameter of bottom, the side of this Rotary-table and the angle of vertical curve are α, in described mould, mould (2) is set in the Rotary-table periphery of lower mould (3), mould (2) and lower mould (3) matched in clearance in this mould; Above-mentioned Rotary-table inside offers the die cavity caved inward, the structure of this die cavity matches with the rotary body of upper mould (1), mould in mould (2) is pressed together between upper mould (1) and lower mould (3) by above-mentioned upper mould (1), the side in this die cavity cross section comprises counterdie first segmental arc (51), counterdie second segmental arc (52), counterdie the 3rd segmental arc (53), counterdie the 4th segmental arc (54) and the counterdie the 5th segmental arc (55) that connect successively from top to down, and the bottom surface of above-mentioned die cavity is planar structure;
The end face of described lower mould (3) Rotary-table offers torn edges groove (6), and this torn edges groove (6) is positioned at the periphery of die cavity end face;
In described mould, in the angle α of the side of mould (2) interior trapezoidal hole and vertical curve, lower mould (3), the side of Rotary-table and the angle α of vertical curve are 8 °.
2. the curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm according to claim 1, it is characterized in that, in described mould, the arc radius of the bottom arc section (21) of the interior trapezoidal hole side of mould (2) is 4 ~ 6mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510655253.7A CN105082562B (en) | 2013-12-30 | 2013-12-30 | A kind of special-shaped saturated nitrile rubber presss from both sides the manufacture method of cloth diaphragm |
| CN201310743444.XA CN103707441B (en) | 2013-12-30 | 2013-12-30 | A kind of curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm and manufacture method |
Applications Claiming Priority (1)
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| CN201310743444.XA CN103707441B (en) | 2013-12-30 | 2013-12-30 | A kind of curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm and manufacture method |
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| CN201510655253.7A Division CN105082562B (en) | 2013-12-30 | 2013-12-30 | A kind of special-shaped saturated nitrile rubber presss from both sides the manufacture method of cloth diaphragm |
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| CN103707441A CN103707441A (en) | 2014-04-09 |
| CN103707441B true CN103707441B (en) | 2016-02-10 |
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| CN201310743444.XA Expired - Fee Related CN103707441B (en) | 2013-12-30 | 2013-12-30 | A kind of curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm and manufacture method |
| CN201510655253.7A Expired - Fee Related CN105082562B (en) | 2013-12-30 | 2013-12-30 | A kind of special-shaped saturated nitrile rubber presss from both sides the manufacture method of cloth diaphragm |
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| CN201510655253.7A Expired - Fee Related CN105082562B (en) | 2013-12-30 | 2013-12-30 | A kind of special-shaped saturated nitrile rubber presss from both sides the manufacture method of cloth diaphragm |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107322950B (en) * | 2017-07-18 | 2019-05-24 | 山东大学 | A kind of bulletproof halmet of composite material molding die and application |
| CN108869741A (en) * | 2018-05-29 | 2018-11-23 | 浙江澳尔法机械制造有限公司 | A kind of band sealing featheredge rubber parts and the molding die for making the rubber parts |
| CN109705584A (en) * | 2018-11-30 | 2019-05-03 | 宁国市顺达密封件制造有限公司 | A kind of supercharger bypass valve clamping cloth diaphragm |
| JP6764179B1 (en) * | 2020-05-28 | 2020-09-30 | 株式会社Ｔｈｅ ＭＯＴ Ｃｏｍｐａｎｙ | Mold |
| CN113733701B (en) * | 2021-09-09 | 2023-06-16 | 浙江贝格霍尔自控工程有限公司 | Micro-pressure automatic valve pressure sensing diaphragm and preparation method thereof |
| CN114434830A (en) * | 2022-01-05 | 2022-05-06 | 株洲时代瑞唯减振装备有限公司 | Method and equipment for forming fiber reinforced rubber sealing diaphragm |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101205320A (en) * | 2007-12-03 | 2008-06-25 | 咸阳时代特种密封科技有限公司 | Fabrication process of air break valve rubber fabric film plate for railway freight car |
| CN102563189A (en) * | 2011-12-23 | 2012-07-11 | 中国航天科技集团公司第六研究院第十一研究所 | Rubber fabric clamped film sheet and manufacturing method thereof |
| CN203622706U (en) * | 2013-12-30 | 2014-06-04 | 南京金三力橡塑有限公司 | Vulcanizing forming mold for shaped saturated butadiene-acrylonitrile rubber fabric diaphragm |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2466005Y (en) * | 2001-02-26 | 2001-12-19 | 诸先桥 | Dome diaphragm mould |
| CN1160178C (en) * | 2001-08-28 | 2004-08-04 | 诸先桥 | Production process of rubber diaphragm for vapor chamber |
| KR20100004441A (en) * | 2008-07-03 | 2010-01-13 | 김기태 | Manufacturing method of micro speaker diaphragm |
| US20110074120A1 (en) * | 2009-09-28 | 2011-03-31 | Namey Jr David | Rotary centrifuge seal with a phenolic overmold component and method of manufacture |
| CN103289150B (en) * | 2013-05-06 | 2015-09-09 | 广州加士特密封技术有限公司 | Acrylonitrile butadiene packing material of a kind of cold-resistant, wear-resisting and preparation method thereof |
| CN103396591B (en) * | 2013-06-14 | 2016-04-06 | 中国船舶重工集团公司第七二五研究所 | A kind of Oilfield ultrahigh-pressure acid-resistant rubber seal material and preparation method |
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- 2013-12-30 CN CN201510655253.7A patent/CN105082562B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101205320A (en) * | 2007-12-03 | 2008-06-25 | 咸阳时代特种密封科技有限公司 | Fabrication process of air break valve rubber fabric film plate for railway freight car |
| CN102563189A (en) * | 2011-12-23 | 2012-07-11 | 中国航天科技集团公司第六研究院第十一研究所 | Rubber fabric clamped film sheet and manufacturing method thereof |
| CN203622706U (en) * | 2013-12-30 | 2014-06-04 | 南京金三力橡塑有限公司 | Vulcanizing forming mold for shaped saturated butadiene-acrylonitrile rubber fabric diaphragm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103707441A (en) | 2014-04-09 |
| CN105082562B (en) | 2017-08-22 |
| CN105082562A (en) | 2015-11-25 |
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