CN203622706U - Vulcanizing forming mold for shaped saturated butadiene-acrylonitrile rubber fabric diaphragm - Google Patents
Vulcanizing forming mold for shaped saturated butadiene-acrylonitrile rubber fabric diaphragm Download PDFInfo
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- CN203622706U CN203622706U CN201320883261.3U CN201320883261U CN203622706U CN 203622706 U CN203622706 U CN 203622706U CN 201320883261 U CN201320883261 U CN 201320883261U CN 203622706 U CN203622706 U CN 203622706U
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Abstract
The utility model discloses a vulcanizing forming mold for a shaped saturated butadiene-acrylonitrile rubber fabric diaphragm, and belongs to the technical field of a rubber cloth-embedded product. The vulcanizing forming mold comprises an upper die of the mold, a middle die of the mold and a lower die of the mold, wherein a rotating body which is protruded outwards is arranged below the upper die; a ladder-shaped hole in the vertical direction is formed in the middle die; the hole diameter of the top surface of the ladder-shaped hole is less than the hole diameter of the bottom surface of the ladder-shaped hole; the side surface of the ladder-shaped hole forms an included angle alpha with the vertical line; an arc section is formed at the bottom of the side surface of the ladder-shaped hole; a round table body which is protruded outwards is formed above the lower die; the middle die is arranged on the periphery of the round table body of the lower die in a sleeving manner; the middle die is in interference fit with the mold lower die; a die cavity which sinks inwards is formed in the round table body; the die cavity is matched with the rotating body of the upper die in structure. The vulcanizing forming mold disclosed by the utility model solves problems that a finished shaped saturated butadiene-acrylonitrile rubber fabric diaphragm is wrinkled and embedded cloth is broken, and increases the percent of pass of the shaped saturated butadiene-acrylonitrile rubber fabric diaphragm.
Description
Technical field
The utility model belongs to rubber folder cloth products technical field, more particularly, relates to a kind of curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm.
Background technology
Rubber fabric clamped film sheet is the rubber seal for automobile filter, this product must have the dynamic resilience performance under excellent oil resistance and low temperature, and after this product surrounding assembling compresses, must there are heat-resisting, 100,000 maintenance permanent seal performances of endurance bending.In industry at present, 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 the requirement that supports the use of automobile filter industry, thereby cause special-shaped saturated butyronitrile folder cloth diaphragm to maintain straight through import at processing link one.The domestic qualified products that also do not have enterprise can produce efficiently, cheaply special-shaped saturated nitrile rubber folder cloth diaphragm; In addition, external production efficiency neither be very high.
The special-shaped saturated nitrile rubber folder cloth diaphragm structure schematic diagram using as rubber seal in automobile filter in prior art as shown in Figure 1, this abnormity saturated nitrile rubber folder cloth diaphragm is made up of internal layer diaphragm body 81, fabric folder cloth 82 and outer diaphragm body 83 three-deckers from the inside to the outside, on its appearance integral, be irregular Rotary-table structure, its special-shaped side is by being made up of body the first segmental arc 71, body the 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 structure particularity of this abnormity saturated nitrile rubber folder cloth diaphragm, it is crumpled and fabric folder cloth breakage problem is a key technology difficult point in production process, the position of easily crumpling often occurs in special-shaped side and bottom corners place, as fruit product crumple or the fracture of fabric folder cloth 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 due to the sulfidation fabric folder cloth discontinuity, how solving special-shaped saturated nitrile rubber folder cloth diaphragm goods and crumple and fabric folder cloth breakage problem, is industrial production problem anxious to be resolved.
By patent retrieval, existing open about the technical scheme of rubber fabric clamped film sheet manufacture method.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 three layers of upper and lower two-layer outer rubber sheets, upper, middle and lower, 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 be will place successively in lower floor's outer rubber sheet, lower floor from bottom to top, sheet rubber, upper strata outer rubber sheet in tissue layer, upper strata strengthened; Make the central aperture of centre bore and the metallic framework of interior sheet rubber, and the central aperture of the cylindrical of interior sheet rubber and outer rubber sheet; (3), molded vulcanization moulding; (4), diaphragm endoporus is carried out to grinding, then diaphragm outer rim is carried out to grinding, obtain rubber fabric clamped film sheet.This application case for be the rubber fabric clamped film sheet of regular shape, its processing method need to be processed folder cloth, after goods machine, need to carry out grinding and just can reach requirement, for special-shaped rubber fabric clamped film sheet, adopt the technical scheme of this application case to use, and cannot solve that goods are crumpled and fabric folder cloth breakage problem.
Utility model content
1. the technical problem that utility model will solve
The surface that the purpose of this utility model is to overcome special-shaped saturated nitrile rubber folder cloth diaphragm in the prior art problem that distortion, folder cloth are ruptured of crumpling, the curing forming mold that a kind of special-shaped saturated nitrile rubber folder cloth diaphragm is provided, adopts the technical solution of the utility model to address the above problem.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
The curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present utility model, 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 the first segmental arc, patrix the 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 being parallel to each other, in this mould, on mould, offer 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 caving inward, the structure of this die cavity matches with the rotary body of upper mould, above-mentioned upper mould is combined in mold pressing in mould between upper mould and lower mould, the side in this die cavity cross section comprises counterdie the first segmental arc, counterdie the 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.
Further improve as the utility model, the end face of described lower mould Rotary-table offers torn edges groove, and this torn edges groove is positioned at the periphery of die cavity end face.
Further improve as the utility model, in described mould, in the side of trapezoidal hole and the angle α of vertical curve, lower mould, the side of Rotary-table and the angle α of vertical curve are 8 ° in mould.
Further improve as the utility model, in described mould, in mould, the arc radius of the bottom arc section of trapezoidal hole side is 4～6mm.
3. beneficial effect
The technical scheme that adopts the utility model to provide, compared with prior art, has following remarkable result:
(1) curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present utility model, in its mould, on mould, offer 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 utility model, in the mould of support the utility model unique design, mould carries out spacing to fabric folder cloth, fabric folder cloth is tightened equably by mould in mould, and surface is without wrinkle phenomenon, thereby avoid dexterously the goods after sulfuration to occur crumpling and pressing from both sides the phenomenon that cloth ruptures, improve the qualification rate of special-shaped saturated nitrile rubber folder cloth diaphragm,
(2) curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm of the present utility model, adopt the curing forming mold of the special-shaped saturated nitrile rubber folder cloth diaphragm of the utility model unique design, mould and lower mould matched in clearance in its mould, and fabric folder cloth adopts terylene elastical cloth, while vulcanizer being driven press on lower mould, under the effect of fabric folder cloth mould in mould, can be full of the die cavity of lower mould with being free to slide, thereby guarantee the stressed uniformity of fabric folder cloth, thoroughly solve the problem that special-shaped saturated nitrile rubber folder cloth diaphragm goods are crumpled and pressed from both sides cloth fracture.
Accompanying drawing explanation
Fig. 1 is the profile that utilizes the special-shaped saturated nitrile rubber folder cloth diaphragm that curing forming mold of the present utility model processes;
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 utility model;
Fig. 3 is the profile of upper mould in the utility model;
Fig. 4 is the profile of mould in mould in the utility model;
Fig. 5 is the profile of lower mould in the utility model.
Label declaration in schematic diagram:
1, upper mould; 41, patrix the first segmental arc; 42, patrix the 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 the first segmental arc; 52, counterdie the 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 the first segmental arc; 72, body the 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.
The specific embodiment
For further understanding content of the present utility model, in conjunction with the accompanying drawings and embodiments the utility model is described in detail.
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, comprises in upper mould 1, mould that mould 2 and lower mould 3(are 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 the first segmental arc 41, patrix the 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 the first segmental arc 41 in the present embodiment, patrix the second segmental arc 42, patrix the 3rd segmental arc 43, patrix the 4th segmental arc 44, patrix the 5th segmental arc 45 is pressed from both sides body the first segmental arc 71 in cloth diaphragm (as shown in Figure 1) with special-shaped saturated nitrile rubber, body the second segmental arc 72, body the 3rd segmental arc 73, body the 4th segmental arc 74, body the 5th segmental arc 75 is corresponding one by one, specifically in the present embodiment: the arc radius of patrix the first segmental arc 41 is 0.50mm, the arc radius of patrix the 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 sections and lower surface are the planar structure (as shown in Figure 4) being parallel to each other, in this mould, on mould 2, offer 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 in the present embodiment and the angle α of vertical curve are 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 angle α of the side of the Rotary-table in the present embodiment and vertical curve is 8 °, in the present embodiment, in mould, the inclined side of mould 2 interior trapezoidal holes matches with the inclined side of Rotary-table on lower mould 3, and the bottom design arc section 21 of the interior trapezoidal hole of mould 2 side in mould, while making to press on vulcanizer driving lower mould 3, impel dexterously the die cavity that can be full of lower mould 3 under the effect of fabric folder cloth 82 mould 2 in mould with being free to slide, thereby guarantee the stressed uniformity of fabric folder cloth 82, this is one of outstanding improvement of the utility model.In mould, mould 2 is as follows at the present embodiment imbody with the design of lower mould 3 matched in clearance: in mould, the bottom part aperture diameter of the interior trapezoidal hole of mould 2 side is 85mm, and on lower mould 3, the diameter of the inclined side of Rotary-table bottom is 80mm.
Rotary-table inside in the present embodiment offers the die cavity caving 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, above-mentioned upper mould 1 is pressed together on mould in mould 2 between upper mould 1 and lower mould 3, the side in this die cavity cross section comprises counterdie the first segmental arc 51, counterdie the 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 the first segmental arc 51 in the present embodiment, counterdie the second segmental arc 52, counterdie the 3rd segmental arc 53, counterdie the 4th segmental arc 54, counterdie the 5th segmental arc 55 is pressed from both sides body the first segmental arc 71 in cloth diaphragm (as shown in Figure 1) with special-shaped saturated nitrile rubber, body the second segmental arc 72, body the 3rd segmental arc 73, body the 4th segmental arc 74, body the 5th segmental arc 75 is corresponding one by one, specifically in the present embodiment: the arc radius of counterdie the first segmental arc 51 is 1.02mm, the arc radius of counterdie the 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.
The curing forming mold that adopts 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 1, preparation fabric folder cloth and diaphragm body sizing material
Cut fabric folder cloth 82 according to the size of the curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm, in the present embodiment, be specially: the size of the curing forming mold of the size of fabric folder cloth 82 and special-shaped saturated nitrile rubber folder 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 the same just glass fibre Co., Ltd in Wujiang, Suzhou.Use rubber preforming machine to cut the material embryo of internal layer diaphragm body 81 and outer diaphragm body 83, in the present embodiment, all to adopt thickness be 3～5mm to the material embryo of internal layer diaphragm body 81 and outer diaphragm body 83, 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 parts of vulcanizing agent, promoter TAC:2 part.
The rubber of the saturated nitrile rubber in the present embodiment is the ZP2020L of Nippon Zeon Co., Ltd.; Carbon black is that the N330 high wear-resistant carbon black or the N550 that are supplied by Cabot Chemical Co., Ltd. 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 of being supplied by Nippon Zeon Co., Ltd.; Accelerant CZ, promoter TT and sulphur are all supplied by Ya Teman Chemical Co., Ltd.; The supply of Mei Xing Chemical Co., Ltd. of vulcanizing agent Shuan25Shi You 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, dynamic resilience under excellent oil resistance and low temperature, thus guaranteeing the requirement of endurance bending 100,000 times, its performance parameter is specifically as shown in table 1.
The curing forming mold of the special-shaped saturated nitrile rubber folder cloth diaphragm in step 1 is assembled on vulcanizer, and the internal layer diaphragm body 81 material embryos of step 1 preparation and outer diaphragm body 83 material embryos are filled out to the both sides up and down that fabric presss from both sides cloth 82 in step 1, above-mentioned internal layer diaphragm body 81 material embryos, fabric folder cloth 82 and outer diaphragm body 83 material embryos 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 to cloth 82 and tightens, and without crumpling, then upper mould 1 is matched with lower mould 3;
Step 3, sulfidization molding
After step 2 is prepared, start sulfidization molding, while pressure on vulcanizer driving lower mould 3, under the effect of fabric folder cloth 82 mould 2 in mould, be full of the die cavity of lower mould 3 with being free to slide; The curing temperature control of vulcanizer is 175 ℃, cure time control is 8 minutes, sulfide stress control is 10MPa, after finishing, sulfuration completes goods processing, 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 makes is 1.2mm.The present embodiment can, according to the demand of special-shaped saturated nitrile rubber folder cloth diaphragm, be opened many moulds and vulcanize processing, thereby greatly improve the production efficiency of product.
Testing of materials performance in table 1 embodiment 1
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, the arc radius of the bottom arc section 21 of the interior trapezoidal hole of mould 2 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 1, 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 parts of vulcanizing agent, promoter TAC:4 part; In step 3, the curing temperature control of vulcanizer is 180 ℃, and cure time control is 9 minutes, and sulfide stress control is 8MPa, completes goods processing after sulfuration finishes, 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, the arc radius of the bottom arc section 21 of the interior trapezoidal hole of mould 2 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 1 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 parts of vulcanizing agent, promoter TAC:1 part; In step 3, the curing temperature control of vulcanizer is 160 ℃, and cure time control is 10 minutes, and sulfide stress control is 12MPa, completes goods processing after sulfuration finishes, and obtains special-shaped saturated nitrile rubber folder cloth diaphragm.
Embodiment 1～3, in the mould of support the utility model unique design, mould 2 carries out spacing to fabric folder cloth 82, fabric folder cloth 82 is tightened equably by mould in mould 2, and surface is without wrinkle phenomenon, while vulcanizer being driven press on lower mould 3, under the effect of fabric folder cloth 82 mould 2 in mould, can be full of the die cavity of lower mould 3 with being free to slide, thereby guarantee the stressed uniformity of fabric folder cloth 82, thoroughly solve the problem that special-shaped saturated nitrile rubber folder cloth diaphragm goods are crumpled and pressed from both sides cloth fracture, improve the qualification rate of special-shaped saturated nitrile rubber folder cloth diaphragm.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (4)
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 comprises 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 the first segmental arc (41), patrix the 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;
Upper surface and the lower surface in mould in described mould (2) cross section are the planar structure being parallel to each other, on mould in this mould (2), offer 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, mould in described mould (2) is set in the Rotary-table periphery of lower mould (3), mould in this mould (2) and lower mould (3) matched in clearance; Above-mentioned Rotary-table inside offers the die cavity caving inward, the structure of this die cavity matches with the rotary body of upper mould (1), above-mentioned upper mould (1) is pressed together on mould in mould (2) between upper mould (1) and lower mould (3), the side in this die cavity cross section comprises counterdie the first segmental arc (51), counterdie the 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.
2. the curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm according to claim 1, is characterized in that, 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.
3. 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 the side of the interior trapezoidal hole of mould in described mould (2) and the angle α of vertical curve, lower mould (3), the side of Rotary-table and the angle α of vertical curve are 8 °.
4. according to the curing forming mold of a kind of special-shaped saturated nitrile rubber folder cloth diaphragm described in claim 2 or 3, it is characterized in that, the arc radius of the bottom arc section (21) of the interior trapezoidal hole of mould in described mould (2) side is 4～6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883261.3U CN203622706U (en) | 2013-12-30 | 2013-12-30 | Vulcanizing forming mold for shaped saturated butadiene-acrylonitrile rubber fabric diaphragm |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320883261.3U CN203622706U (en) | 2013-12-30 | 2013-12-30 | Vulcanizing forming mold for shaped saturated butadiene-acrylonitrile rubber fabric diaphragm |
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| CN203622706U true CN203622706U (en) | 2014-06-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707441A (en) * | 2013-12-30 | 2014-04-09 | 南京金三力橡塑有限公司 | Vulcanization forming mold and manufacturing method of specially-shaped saturated nitrile rubber laminated cloth diaphragm |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103707441A (en) * | 2013-12-30 | 2014-04-09 | 南京金三力橡塑有限公司 | Vulcanization forming mold and manufacturing method of specially-shaped saturated nitrile rubber laminated cloth diaphragm |
| CN103707441B (en) * | 2013-12-30 | 2016-02-10 | 南京金三力橡塑有限公司 | A kind of curing forming mold of special-shaped saturated nitrile rubber folder cloth diaphragm and manufacture method |
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