CN206780819U - A kind of sulfurization forming apparatus of saturated nitrile rubber nylon valve block - Google Patents
A kind of sulfurization forming apparatus of saturated nitrile rubber nylon valve block Download PDFInfo
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- CN206780819U CN206780819U CN201720625448.1U CN201720625448U CN206780819U CN 206780819 U CN206780819 U CN 206780819U CN 201720625448 U CN201720625448 U CN 201720625448U CN 206780819 U CN206780819 U CN 206780819U
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Abstract
The utility model discloses a kind of sulfurization forming apparatus of saturated nitrile rubber nylon valve block, belong to rubber nylon skeleton processing technique field.The sulfurization forming apparatus of saturated nitrile rubber nylon valve block of the present utility model, its mould include upper mould, middle mould and lower mould, and middle mould after lower mould matched moulds with forming multigroup rubber die cavity；Endoporus is machined with the department of assembly of polyamide skeleton both sides, multiple polyamide skeletons are interted by vulcanization auxiliary plug while carry out vulcanization processing；The polyamide skeleton mold filling servicing unit is provided with the first neck and the second neck, and calibration positioning is carried out to the polyamide skeleton interted on vulcanization auxiliary plug by the cooperation of the first neck and the second neck.The utility model passes through the improvement to polyamide skeleton mold filling servicing unit and mould structure, so that polyamide skeleton mold filling efficiency high, the product surface produced eliminates traditional skeleton edge-neatening craftwork without rubber burr, production and deburring efficiency are substantially increased, reduce further manufacturing cost.
Description
Technical field
The utility model belongs to rubber and polyamide skeleton processing technique field, more specifically to a kind of saturation butyronitrile
The sulfurization forming apparatus of rubber nylon valve block.
Background technology
It is well known that the main function that nylon plastic(s) is used for automobile is make automotive light weight technology, so as to reach fuel-economizing, high speed
Purpose.Developed country is using Nylon for Automobile amount of plastic as an important symbol for weighing Automobile Design and Manufacturing level height.
In recent years, it is a kind of new with raising of the country to automobile exhaust emission standard and the lifting of people's ideas of energy-saving
And the inlet manifold technology with double inlet channels is arisen at the historic moment.Inlet manifold is most important portion in engine aspirating system
Part, it is located at center in automobile engine room, is a kind of complex-shaped hollow part, the basic function of inlet manifold is by vapour
Oil and air are mixed into " gaseous mixture " by a certain percentage, are assigned to by it in vaporizer in each cylinder of engine, its technology
Principle is：When the engine operates with a low speed, engine makes air along bending and elongated air inlet by changing nylon valve block
Manifold enters cylinder, and elongated inlet manifold improves intake velocity, increases the current rate in cylinder, increases air inflow
It is more, so as to improve combustion process, fuel consumption is reduced, improves the dynamic property of engine, increases effective output torque.
In addition, variable-length intake manifold is also reduced the effect of gasoline exhaust discharge capacity；When high engine speeds operate, by turning
Nylon valve block is changed, air is directly entered the inlet manifold of tubbiness, because inlet manifold is thick and short, causes intake resistance to reduce, enters
And also increase air inflow.The realization of above effect, depending primarily on nylon valve block can cut to long and short air intake duct
Change.
The structural representation of nylon valve block is as shown in figure 1, the nylon valve block is by polyamide skeleton 5 in the prior art
What body periphery bonding by Vulcanization rubber was formed, and the opposite sides of nylon valve block is arranged with department of assembly 501, passes through department of assembly 501
Nylon valve piece is assembled in inlet manifold.At present, the production of nylon valve block is generally all in nylon using curing forming mold
Frame body periphery molded rubber layer, therefore the reasonability of curing forming mold structure design is directly connected to the matter of gained valve block
Amount and performance.
But at present in industry, due to being limited by domestic production technology, the engine charge that rubber is combined with polyamide skeleton
Modulus after the mold filling of manifold valve block and vulcanization is all very cumbersome, and the operating time is long, serious stagnant about production efficiency, and percent defective
Height, tend not to meet air intake manifold of automotive engine in production technology supports the use requirement, so as to cause rubber nylon
Valve block maintains in processing link all the time by import.Domestic also no enterprise can efficiently, inexpensive production rubber nylon valve
Piece, in addition, external production efficiency is nor very high.Therefore, the production efficiency of rubber nylon valve block how is improved, is reduced the number of rejects and seconds
Rate, ensure precision the problem of being anxious to be resolved in China's industrial production of gained valve block.
Applicant is also directed to the research of nylon valve block production technology always, if applicant is in applying in December, 2013
The application case that Chinese Patent Application No. is 201310751425.1 discloses a kind of engine inlet manifold rubber nylon valve plate
Processing mold and processing method, the processing mold of this application case include mould and polyamide skeleton, and described mould includes mold
With lower mould, the upper surface of the lower surface of the mold and the lower mould is provided with die cavity；Described mold, lower mould
The die cavity matched moulds of tool forms rubber die cavity, and in the inner surface of rubber die cavity, along the edge in the not encapsulated face of polyamide skeleton, projection is set
There is a circle edge sealing muscle.The processing mold and processing method pass through the improvement to skeleton structure, mould structure and injection process so that
Product surface eliminates traditional skeleton surface trimming process step, improves product quality, but its production efficiency is still without rubber burr
It is relatively low, need further to be improved.
Utility model content
1. utility model technical problems to be solved
The purpose of this utility model is to overcome the production efficiency of the existing rubber nylon valve block in China relatively low, percent defective compared with
Height, its precision are difficult to the deficiency for supporting the use requirement for meeting air intake manifold of automotive engine, there is provided a kind of saturation butyronitrile rubber
The sulfurization forming apparatus of glue nylon valve block.The life of rubber nylon valve block can be effectively improved using the technical solution of the utility model
Efficiency, rate of reducing the number of rejects and seconds are produced, and gained rubber nylon valve block disclosure satisfy that supporting the use for China's air intake manifold of automotive engine
It is required that.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the utility model is：
A kind of sulfurization forming apparatus of saturated nitrile rubber nylon valve block of the present utility model, including mould, vulcanization auxiliary
Plug and polyamide skeleton mold filling servicing unit, wherein, described mould includes upper mould, middle mould and lower mould, middle mould and lower mould matched moulds
After form multigroup rubber die cavity；Treat to be machined with endoporus in the department of assembly of vulcanization processing polyamide skeleton both sides, aided in by vulcanizing
Plug interts multiple polyamide skeletons while carries out vulcanization processing；Described polyamide skeleton mold filling servicing unit is provided with the first neck
With the second neck, the multiple polyamide skeletons interted on vulcanization auxiliary plug are carried out by the cooperation of the first neck and the second neck
Calibration positioning.
Further, the shape of the vulcanization auxiliary plug and the shape and size of size and endoporus match, described
Spacing on polyamide skeleton mold filling servicing unit between adjacent first neck is corresponding with the width of polyamide skeleton, adjacent second card
Spacing between groove is identical with the spacing between adjacent die cavity in every group of rubber die cavity.
Further, the number of the second neck and of every group of rubber die cavity on the polyamide skeleton mold filling servicing unit
Number is corresponding, and the overall length of the servicing unit is 180~190mm, beam overall is 45~60mm, total a height of 20~30mm, the first neck
Width be 8~12mm, the width of the second neck be 20~24mm.
Further, the surface of the rubber die cavity forms one layer of chromium coating by electroplating processes.
Further, the lower surface of the upper mould is processed as corresponding planar structure, middle mould with the upper surface of middle mould
Lower surface offer the die cavity being recessed upwards, the upper surface of lower mould offers die cavity protruding upward, the mould of middle mould and lower mould
Multigroup rubber die cavity is formed after chamber matched moulds.
Further, hole for injecting glue vertically is offered on the middle mould, hole for injecting glue bottom offers note point, should
Note point is connected with rubber die cavity, and a diameter of 2~3mm of hole for injecting glue, notes a diameter of 0.5~1.5mm a little.
Further, in the inner surface of rubber die cavity, the lower edges in the not encapsulated face of polyamide skeleton are provided with a circle
Raised edge sealing muscle, the horizontal width of the edge sealing muscle is 0.3~0.5mm, and height of projection is 0.1~0.3mm.
3. beneficial effect
Using technical scheme provided by the utility model, compared with prior art, there is following remarkable result：
(1) sulfurization forming apparatus of a kind of saturated nitrile rubber nylon valve block of the present utility model, including mould, vulcanization it is auxiliary
Plug and polyamide skeleton mold filling servicing unit are helped, forms multigroup rubber die cavity after the mould matched moulds, vulcanization auxiliary plug can be with
Intert multiple polyamide skeletons to be placed in carrying out position correction on polyamide skeleton mold filling servicing unit, a vulcanization aids in plug and its
For upper interspersed multiple polyamide skeletons as an entirety, together mold filling, modulus, reduce the operating time, substantially increase production
Efficiency；And because polyamide skeleton have already been mades position correction before rubber die cavity is put into, so as to further shorten
The mold filling time, improve production efficiency.Meanwhile using multiple vulcanizations plug can also be aided in same as needed during actual processing
When to multigroup polyamide skeleton carry out mold filling, modulo operation.
(2) sulfurization forming apparatus of a kind of saturated nitrile rubber nylon valve block of the present utility model, the mold cavity table
Face needs electroplating processes, and by the mold cavity of electroplating processes, the corrosivity of resistance to rubber is stronger, the nylon valve block outward appearance of sulfidization molding
More attractive, the mold use life-span can be up to 100,000 times, so as to also further increase the production efficiency of nylon valve block.
(3) sulfurization forming apparatus of a kind of saturated nitrile rubber nylon valve block of the present utility model, edge is offered on middle mould
The hole for injecting glue of vertical direction, a diameter of 2~3mm of hole for injecting glue, when being pressed on mould matched moulds, in be molded into press intracavitary valve block body
Sizing material can be along hole for injecting glue, completely by injection pressure to rubber-type intracavitary, while ensureing that product appearance is qualified, the valve of injection pressure intracavitary
Piece body sizing material will not be wasted excessively again, so, not only increased the qualification rate of product, also reduced manufacturing cost.
(4) sulfurization forming apparatus of a kind of saturated nitrile rubber nylon valve block of the present utility model, hole for injecting glue bottom opens up
There is note point, a diameter of 0.5~1.5mm of the note point, valve block body sizing material is along hole for injecting glue, by noting point and injection pressure to mould type
Intracavitary, after the sulfidization molding demoulding, the injecting glue in hole for injecting glue is broken at note point again, the nylon valve block note point part so made
Without rubber burr, traditional trimming process step is eliminated.
(5) sulfurization forming apparatus of a kind of saturated nitrile rubber nylon valve block of the present utility model, the vulcanization auxiliary wick
The shape and size of rod and the shape and size of endoporus match, and calibration positioning is carried out to polyamide skeleton using vulcanization auxiliary plug
Latter being put into rubber die cavity carries out vulcanization processing together, so as to effectively improve the positioning accurate between each skeleton and rubber die cavity
Degree, advantageously ensure that the uniformity of gained nylon the mass of the valve plate.
(6) sulfurization forming apparatus of a kind of saturated nitrile rubber nylon valve block of the present utility model, in rubber die cavity
Surface, the lower edges in the not encapsulated face of polyamide skeleton are provided with the raised edge sealing muscle of a circle, the horizontal width of the edge sealing muscle is
0.3~0.5mm, height of projection is 0.1~0.3mm, and because gross pressure is smaller, mould edge sealing muscle is easy to be pressed into polyamide skeleton lip
Side, so, edge sealing muscle and polyamide skeleton form interference fit, and both combine closely, and prevent sizing material not encapsulated to polyamide skeleton
Face continues to flow, and rubber is completely restricted in defined region when flowing, so as to ensure obtained product surface without rubber
Flash, traditional skeleton surface trimming process step is eliminated, product quality and production efficiency is improved, reduces manufacturing cost.
Brief description of the drawings
Fig. 1 is the structural representation for the nylon valve block being process using manufacture method of the present utility model；
Fig. 2 is the profile of the curing forming mold of saturated nitrile rubber nylon valve block of the present utility model；
Fig. 3 is the mplifying structure schematic diagram of region A in Fig. 2；
Fig. 4 is the structural representation of vulcanization auxiliary plug in the utility model；
Fig. 5 is the structural representation of polyamide skeleton mold filling servicing unit in the utility model；
Fig. 6 is the structural representation of polyamide skeleton in the utility model.
Label declaration in schematic diagram：
1st, upper mould；2nd, middle mould；3rd, lower mould；4th, edge sealing muscle；5th, polyamide skeleton；501st, department of assembly；6th, hole for injecting glue；7th, rubber-type
Chamber；8th, point is noted；9th, vulcanization auxiliary plug；10th, polyamide skeleton mold filling servicing unit；11st, endoporus；12nd, the first neck；13rd, second
Neck.
Embodiment
With the technologies such as electronic technology, Control Technique of Microcomputer and structure design rapid development and its it is tight with automobile product
Close combination, make automobile in the performance more and more higher of economy, dynamic property, security, comfortableness and environmental protection etc..In automobile not
In the course of disconnected development, this trend is just being complied with the application and development of variable air inlet technology.Variable air inlet technology can be with
The power per liter and fuel economy of engine is significantly increased.Variable intake manifold be exactly based on change air inlet pipe length and
Sectional area, efficiency of combustion is improved, make that engine is more steady in the slow-speed of revolution, moment of torsion is more sufficient, more smooth, power is more during high rotating speed
It is powerful.Can not only improve gasoline in, low speed and in, Smaller load when dynamic property, that is, improve effective output torque；Due also to
Intake velocity when it improves gasoline in, low-speed running, and the current rate in cylinder is enhanced, so as to improve burning
Process, makes gasoline in, the decline of the minimum specific fuel consumption of low speed, and fuel economy increases.Wherein rubber seal is
Important component in gas handling system, its is complicated, is combined by nylon valve block periphery bonding by Vulcanization saturated nitrile rubber,
In addition to being had higher requirements to elastomeric material performance, higher is also required to the size of the product, flash, adhesive property.Because of the technology
Ground zero at home, technology etc. are immature, at this stage all import partses of product, can using the technical solution of the utility model
The production efficiency of rubber nylon valve block is effectively improved, rate of reducing the number of rejects and seconds, and gained rubber nylon valve block disclosure satisfy that China's automobile
Motor intake manifold supports the use requirement.
To further appreciate that content of the present utility model, the utility model is made in conjunction with the drawings and specific embodiments detailed
Description.
Embodiment 1
As Figure 2-Figure 5, the sulfurization forming apparatus of a kind of saturated nitrile rubber nylon valve block of the present embodiment, including mould
Tool, vulcanization auxiliary plug 9 and polyamide skeleton mold filling servicing unit 10, wherein, described mould includes upper mould 1, middle mould 2 and lower mould
3, the lower surface of upper mould 1 is processed as corresponding planar structure with the upper surface of middle mould 2, and the lower surface of middle mould 2 offers upwards
The die cavity of depression, the upper surface of lower mould 3 offer die cavity protruding upward, and middle mould 2 is multigroup with being formed after the die cavity matched moulds of lower mould 3
Rubber die cavity 7, it is symmetrical two groups in the present embodiment, and every group is provided with 5 rubber die cavities.In the interior table of rubber die cavity 7
Face, the lower edges in the not encapsulated face of polyamide skeleton 5 are provided with the raised edge sealing muscle 4 of a circle, the horizontal width of the edge sealing muscle 4 is
0.4mm, height of projection 0.2mm, when pressing on mould matched moulds, edge sealing muscle 4 is easy to be pressed into the lip of polyamide skeleton 5, so, envelope
Side muscle 4 and polyamide skeleton 5 form interference fit, and both combine closely, and prevent sizing material to continue to flow to the not encapsulated face of polyamide skeleton 5
Dynamic, rubber is completely restricted in defined region when flowing, so as to ensure that obtained product surface without rubber burr, saves
Traditional skeleton surface trimming process step, improves product quality and production efficiency, reduces manufacturing cost.
Offer hole for injecting glue 6 vertically on above-mentioned middle mould 2, the bottom of hole for injecting glue 6 offers note point 8, the note point 8 with
Rubber die cavity 7 is connected, and a diameter of 2.5mm of hole for injecting glue 6, a diameter of 1mm of note point 8.When being pressed on mould matched moulds, middle mould
The valve block body sizing material of injection pressure intracavitary, by noting point 8 completely by injection pressure to rubber die cavity 7, can ensure to produce along hole for injecting glue 6
While product outward appearance is qualified, the valve block body sizing material of injection pressure intracavitary will not be wasted excessively again, so, not only increase the conjunction of product
Lattice rate, also reduces manufacturing cost.And after the sulfidization molding demoulding, the injecting glue in hole for injecting glue 6 is broken at note point 8 again, is so made
The nylon valve block note point part of work eliminates traditional trimming process step without rubber burr.
As shown in fig. 6, treat to be machined with endoporus 11, the vulcanization in the department of assembly 501 of vulcanization processing polyamide skeleton 5 both sides
The shape and size and the shape and size of endoporus 11 of auxiliary plug 9 match, and intert multiple nylon by vulcanizing auxiliary plug 9
Skeleton 5 carries out vulcanization processing simultaneously.Described polyamide skeleton mold filling servicing unit 10 is provided with the first neck 12 and the second neck
13, the spacing between adjacent first neck 12, i.e. the width of the second neck 13 is corresponding with the width of polyamide skeleton 5；Adjacent
Spacing between two draw-in groove 13, the i.e. width of the first neck 12 are identical with the spacing between adjacent die cavity in every group of rubber die cavity 7,
And second neck 13 number it is corresponding with the number of every group of rubber die cavity 7, pass through matching somebody with somebody for the first neck 12 and the second neck 13
Close and calibration positioning is carried out to the multiple polyamide skeletons 5 interted on vulcanization auxiliary plug 9.Polyamide skeleton mold filling aids in the present embodiment
The overall length of device is 185mm, beam overall 50mm, total a height of 25mm, and the width of the first neck 12 is 10mm, the width of the second neck 13
Spend for 22mm；Vulcanization auxiliary plug cross-sectional width is 3mm, is highly 5mm, overall length 250mm, and a vulcanization auxiliary plug 9 is right
5 polyamide skeletons should be interted.
Vulcanization auxiliary plug 9 can intert multiple polyamide skeletons 5 and be placed in carrying out on polyamide skeleton mold filling servicing unit 10
Position correction, a vulcanization auxiliary plug 9 are used as an entirety with interspersed multiple polyamide skeletons 5 thereon, together mold filling, take
Mould, the operating time is reduced, while be filled in one group of rubber die cavity 7 of curing forming mold, after the completion of sulfidization molding again
Can to group rubber-type intracavitary polyamide skeleton 5 simultaneously carry out modulus, so as to substantially reduce the mold filling of polyamide skeleton 5,
The modulus time, substantially increase production efficiency.And because polyamide skeleton 5 have already been mades position before rubber die cavity 7 is put into
Calibration is put, so as to further shorten the mold filling time, improves production efficiency.
Meanwhile plug 9 can also be aided in simultaneously to multigroup nylon using multiple vulcanizations as needed during actual processing
Skeleton 5 carries out mold filling, modulo operation.Multiple rubber die cavities 7 are sulfided into multiple polyamide skeletons simultaneously in by mould
During type, due to mould diverse location unbalance stress in matched moulds process, so as to be easily caused generation flexural deformation, and polyamide skeleton
5 itself be also arc-shaped bend structure, and its requirement to machining accuracy is more strict, therefore is just difficult to ensure that gained nylon valve block
The stability of machining accuracy and different nylon the mass of the valve plate.The present embodiment is by provided with two groups of symmetrical rubber die cavities, together
Shi Caiyong vulcanization auxiliary plug 9 positioning calibration is carried out to different polyamide skeletons 5, so as to effectively prevent in process because by
Flexural deformation caused by power inequality, can effectively ensure that the precision and quality of gained nylon valve block, and be advantageous to extend mould
Service life.
A kind of manufacture method of saturated nitrile rubber nylon valve block of the present embodiment, this method are to use above-mentioned nylon valve block
Sulfurization forming apparatus come what is manufactured, it is comprised the following steps that：
Step 1: the preparation of polyamide skeleton and valve block body sizing material
Material mixture ratio according to polyamide skeleton makes polyamide skeleton, and cuts valve block body glue using rubber preforming machine
Material；The polyamide skeleton of the present embodiment is made up of the component of following percentage by weight：
Nylon66 fiber 66%
Glass fibre 30%
Color masterbatch 4%
Wherein, nylon66 fiber is the polyhexamethylene adipamide of the intelligent plasticizing Co., Ltd production of Yuyao City one；Glass fibre is remaining
The high strength glass fiber of Yao city Jie Sheng glasses Co., Ltd production；Color masterbatch is the color of the glad plasticizing Co., Ltd production of Yuyao City three
Masterbatch.The purpose for increasing glass fibre in the present embodiment polyamide skeleton is to strengthen the intensity of polyamide skeleton, stretches polyamide skeleton
Intensity is high, and elongation is small, coefficient of elasticity is high, and rigidity is good, elongation is big in elastic limit and tensile strength is high, apparatus with shock absorbing
Greatly, and glass fibre is inorfil, and noninflammability, chemical resistance are good, water imbibition is small, yardstick stability, heat resistance is good, is easy to
Processing.It is as follows using said components and its polyamide skeleton of degree, its preparation method：
A, dry：
Nylon66 fiber, glass fibre and color masterbatch are mixed in the ratio, under the conditions of 120 DEG C, compound is placed in drying
Drying 4h in machine.
B, it is molded：
Compound after step a is dried, after being liquefied in the casting machine that temperature is 270 DEG C, mold cavity is injected immediately
It is interior, under 100 DEG C of heating conditions, after thermoplastic shaping 30s, that is, obtain polyamide skeleton.
C, deburring, inspection：Polyamide skeleton after shaping is repaiied except slitter edge and inspection processing.
The present embodiment middle valve plate body sizing material use thickness for：4mm, weight are the strip of 15 ± 1 grams/block, are needed per mould
Fill out 4 blocks of valve block body sizing materials, the valve block body sizing material by following component by weight：
The composition of the middle valve plate body sizing material of 1 embodiment of table 1
Above-mentioned saturation butyronitrile rubber is Nippon Zeon Co., Ltd.'s production, and zinc oxide is the production of Zhenjiang plain boiled water Chemical Co., Ltd.
Indirect process zinc oxide；Stearic acid is the southern grease company production of Malaysia；Age resistor 445 is the (propyloxy phenyls of 4,4' bis-
Base) diphenylamines；Age resistor ZMMBI is the 2- mercaptan ylmethylbenzimidazole zinc salts of Jinan Rui Bo Chemical Co., Ltd.s；N550 charcoals
Black is the fast extrude in carbon black of Suzhou Bao Hua carbon blacks Co., Ltd production；Plasticizer TP759 is the limited public affairs of Shenyang east sky Gui chemical industry
Take charge of a kind of plasticizer of the polyether/polyester mixed type of low volatility of production；Peroxide F40P is that the gloomy Dihua work in Shanghai is limited
Company's powdery vulcanizing agent；Crosslinking coagent TAIC50 is the triallyl isocyanuric acid of Suzhou subfamily chemical reagent Co., Ltd production
Ester.
For saturated nitrile rubber (HNBR) because having excellent oil resistivity, heat resistance and good Physical Processing performance turn into resistance to
The preferred glue kind of oily rubber.Nitrile rubber with bound acrylonitrile content increase, the oil resistivity of its vulcanizate, heat resistance,
Hardness, fixed stretching strength, break the performances such as strength and be remarkably reinforced, but its cold resistance, elasticity and compression set performance are obvious
It is deteriorated.
Further, since saturated nitrile rubber (HNBR) need to be bonded with polyamide skeleton in the present embodiment, therefore it removes need
Want outside relatively low Mooney viscosity, also need resistance to 125 DEG C × 1008h heat ageings, 125 DEG C × 1000h fuel oils, resistance to coolant aging, because
The Mooney viscosity of saturated nitrile rubber (HNBR) is lower, and its resistance to liquid can be relatively poorer, and the saturated nitrile rubber (HNBR)
Material requirements bonds fastening without delamination with polyamide skeleton.Inventor adjusts by repeatedly formula, finally draws above-mentioned rubber compounding,
So that material has good oil resistance；And due to its HI SA highly saturated structure, it is had good heat resistance,
Excellent resistance to chemical corrosion, excellent ozone resistance and higher incompressible permanent deformation performance；Also there is height simultaneously
Intensity, high tear energy, the features such as anti-wear performance is excellent.Using the formula of the present embodiment can ensure rubber valve plate with nylon
On the basis of skeleton good bond, its heat resistance, ageing-resistant performance, resistance to liquid energy and incompressible permanent deformation performance etc. are
China's air intake manifold of automotive engine can effectively be met supports the use requirement.
Step 2: polyamide skeleton, valve block body sizing material are inserted successively
Curing forming mold of the present utility model is assembled on vulcanizing press, interts Buddhist nun using vulcanization auxiliary plug 9
Keel shoe endoporus 11, and be positioned on polyamide skeleton mold filling servicing unit 10 and carry out calibration positioning, vulcanization is then aided in into plug 9
On polyamide skeleton 5 be positioned in rubber die cavity 7；Finally valve block body sizing material is placed into the hole for injecting glue 6 of middle mould 2.
Step 3: sulfidization molding
Start sulfidization molding after step 2, the lower pressurization of mould 2 matched moulds of vulcanizer driving, locking die, edge sealing muscle 4 is in pressure
It is pressed directly under effect in polyamide skeleton 5.Edge sealing muscle 4 and polyamide skeleton 5 form interference fit, both is combined closely,
In whole injecting glue and sulfidation, to prevent sizing material from being moved by edge sealing muscle 4 to the not encapsulated surface current of polyamide skeleton 5, to remain
The locking state of mould, it must not be vented.At the same time, the valve block body sizing material in middle mould 2 is passed through injecting glue by the extruding of upper mould 1
The injection pressure of hole 6 is in rubber die cavity 7, and the curing temperature control of vulcanizer is 165 DEG C, and cure time control is 8 minutes, sulfide stress
Control and product processing is completed after terminating, produces saturated nitrile rubber nylon valve block for 14MPa, vulcanization.
Embodiment 2
A kind of structure of the sulfurization forming apparatus of the saturated nitrile rubber nylon valve block of the present embodiment substantially with embodiment 1,
Its difference essentially consists in：A diameter of 3mm of the vertical hole for injecting glue 6 opened up on the middle mould 2, the diameter of the bottom of hole for injecting glue 6 note point 8
For 1.3mm, the horizontal width of edge sealing muscle 4 is 0.5mm, height of projection 0.3mm；The cross-sectional width of the vulcanization auxiliary plug 9
For 3.5mm, highly be 5.5mm, overall length 260mm；The overall length of the polyamide skeleton mold filling servicing unit is 190mm, beam overall is
60mm, total a height of 30mm, the width of the first neck 12 is 12mm, the width of the second neck 13 is 24mm, and the table of rubber die cavity 7
Face forms one layer of chromium coating by electroplating processes, and by the mold cavity of electroplating processes, the corrosivity of resistance to rubber is stronger, is sulfided into
The nylon valve block outward appearance of type is more attractive, and the mold use life-span can be up to 100,000 times, so as to also further increase nylon valve block
Production efficiency.
The manufacture method of the saturated nitrile rubber nylon valve block of the present embodiment, its basic preparation process are different with embodiment 1
Part is：Valve block body sizing material is made up of following component according to mass percent：
The composition of the valve block body sizing material of the embodiment 2 of table 2
| Raw material title | Percentage composition % |
| Saturation butyronitrile rubber | 64 |
| Zinc oxide： | 2.5 |
| Stearic acid： | 0.5 |
| Age resistor 445： | 1.1 |
| Age resistor ZMMBI： | 0.4 |
| N550 carbon blacks： | 23 |
| Plasticizer TP759： | 3 |
| Peroxide vulcanizing agent F40P： | 5.2 |
| Crosslinking coagent TAIC50： | 0.3 |
The curing temperature control of vulcanizer is 170 DEG C in step 3, and cure time control is 9 minutes, sulfide stress control
For 15MPa, vulcanization completes product processing, that is, obtains saturated nitrile rubber nylon valve block after terminating.
Embodiment 3
A kind of sulfurization forming apparatus of the saturated nitrile rubber nylon valve block of the present embodiment, its basic structure with embodiment 2,
Difference is：The a diameter of of point 8 is noted in a diameter of 2mm of the vertical hole for injecting glue 6 opened up on the middle mould 2, the bottom of hole for injecting glue 6
1.5mm, the horizontal width of edge sealing muscle 4 is 0.3mm, height of projection 0.1mm；The overall length of the polyamide skeleton mold filling servicing unit
For 180mm, beam overall 45mm, total a height of 20mm, the width of the first neck 12 is 8mm, the width of the second neck 13 is 20mm.
The manufacture method of the saturated nitrile rubber nylon valve block of the present embodiment, for its step substantially with embodiment 2, it distinguishes master
It is：Described valve block body sizing material by following component by weight：
The composition of the valve block body sizing material of the embodiment 3 of table 3
| Raw material title | Percentage composition % |
| Saturation butyronitrile rubber | 66 |
| Zinc oxide： | 2.4 |
| Stearic acid： | 0.8 |
| Age resistor 445： | 1.4 |
| Age resistor ZMMBI： | 0.6 |
| N550 carbon blacks： | 21 |
| Plasticizer TP759： | 2.4 |
| Peroxide vulcanizing agent F40P： | 5.1 |
| Crosslinking coagent TAIC50： | 0.3 |
The curing temperature control of vulcanizer is 175 DEG C in step 3, and cure time control is 10 minutes, sulfide stress control
For 15MPa, vulcanization completes product processing, that is, obtains saturated nitrile rubber nylon valve block after terminating.
Embodiment 4
A kind of sulfurization forming apparatus of the saturated nitrile rubber nylon valve block of the present embodiment, its basic structure with embodiment 2,
Difference is：The a diameter of of point 8 is noted in a diameter of 2mm of the vertical hole for injecting glue 6 opened up on the middle mould 2, the bottom of hole for injecting glue 6
0.5mm, the horizontal width of edge sealing muscle 4 is 0.3mm, height of projection 0.3mm；It is described vulcanization auxiliary plug 9 cross-sectional width be
4mm, highly it is 6mm, overall length 270mm.
The manufacture method of the saturated nitrile rubber nylon valve block of the present embodiment, for its step substantially with embodiment 2, it distinguishes master
It is：Described valve block body sizing material by following component by weight：
The composition of the valve block body sizing material of the embodiment 4 of table 4
The curing temperature control of vulcanizer is 175 DEG C in step 3, and cure time control is 10 minutes, sulfide stress control
For 15MPa, vulcanization completes product processing, that is, obtains saturated nitrile rubber nylon valve block after terminating.
Embodiment 5
A kind of sulfurization forming apparatus of saturated nitrile rubber nylon valve block of the present embodiment, its basic structure is the same as embodiment 4.
The manufacture method of the saturated nitrile rubber nylon valve block of the present embodiment, for its step substantially with embodiment 4, it distinguishes master
It is：Described valve block body sizing material by following component by weight：
The composition of the valve block body sizing material of the embodiment 5 of table 5
| Raw material title | Percentage composition % |
| Saturation butyronitrile rubber | 65 |
| Zinc oxide： | 3.4 |
| Stearic acid： | 0.8 |
| Age resistor 445： | 1.4 |
| Age resistor ZMMBI： | 0.6 |
| N550 carbon blacks： | 20 |
| Plasticizer TP759： | 2.4 |
| Peroxide vulcanizing agent F40P： | 6.1 |
| Crosslinking coagent TAIC50： | 0.3 |
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, do not depart from the utility model create objective in the case of, without creativeness design
The frame mode similar to the technical scheme and embodiment, the scope of protection of the utility model all should be belonged to.
Claims (7)
- A kind of 1. sulfurization forming apparatus of saturated nitrile rubber nylon valve block, it is characterised in that：Including mould, vulcanization auxiliary plug (9) and polyamide skeleton mold filling servicing unit (10), wherein, described mould includes upper mould (1), middle mould (2) and lower mould (3), in Mould (2) after lower mould (3) matched moulds with forming multigroup rubber die cavity (7)；Treat in the department of assembly of vulcanization processing polyamide skeleton (5) both sides Endoporus (11) is machined with, by vulcanizing the interspersed multiple polyamide skeletons (5) of auxiliary plug (9) while carrying out vulcanization processing；Described Polyamide skeleton mold filling servicing unit (10) is provided with the first neck (12) and the second neck (13), passes through the first neck (12) and the The cooperation of two draw-in groove (13) carries out calibration positioning to the multiple polyamide skeletons (5) interted on vulcanization auxiliary plug (9).
- A kind of 2. sulfurization forming apparatus of saturated nitrile rubber nylon valve block according to claim 1, it is characterised in that：Institute State the shape for vulcanizing auxiliary plug (9) and size and the shape and size of endoporus (11) match, the polyamide skeleton mold filling is auxiliary Help the spacing on device (10) between adjacent first neck (12) corresponding with the width of polyamide skeleton (5), adjacent second neck (13) spacing between is identical with the spacing between adjacent die cavity in every group of rubber die cavity (7).
- A kind of 3. sulfurization forming apparatus of saturated nitrile rubber nylon valve block according to claim 2, it is characterised in that：Institute It is corresponding with the number of every group of rubber die cavity (7) to state the number of the second neck (13) on polyamide skeleton mold filling servicing unit (10), The overall length of the servicing unit is 180~190mm, beam overall is 45~60mm, total a height of 20~30mm, the width of the first neck (12) Width for 8~12mm, the second neck (13) is 20~24mm.
- 4. a kind of sulfurization forming apparatus of saturated nitrile rubber nylon valve block according to any one of claim 1-3, its It is characterised by：The surface of the rubber die cavity (7) forms one layer of chromium coating by electroplating processes.
- A kind of 5. sulfurization forming apparatus of saturated nitrile rubber nylon valve block according to claim 4, it is characterised in that：Institute State the lower surface of mould (1) and the upper surface of middle mould (2) and be processed as corresponding planar structure, the lower surface of middle mould (2) opens up There is concave up sunken die cavity, the upper surface of lower mould (3) offers die cavity protruding upward, and the die cavity of middle mould (2) and lower mould (3) closes Multigroup rubber die cavity (7) is formed after mould.
- A kind of 6. sulfurization forming apparatus of saturated nitrile rubber nylon valve block according to claim 5, it is characterised in that：Institute State the hole for injecting glue (6) offered on mould (2) vertically, hole for injecting glue (6) bottom offers note point (8), the note point (8) with Rubber die cavity (7) is connected, and a diameter of 2~3mm of hole for injecting glue (6), a diameter of 0.5~1.5mm of note point (8).
- A kind of 7. sulfurization forming apparatus of saturated nitrile rubber nylon valve block according to claim 6, it is characterised in that： The inner surface of rubber die cavity (7), the lower edges in the not encapsulated face of polyamide skeleton (5) are provided with the raised edge sealing muscle (4) of a circle, The horizontal width of the edge sealing muscle (4) is 0.3~0.5mm, and height of projection is 0.1~0.3mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720625448.1U CN206780819U (en) | 2017-06-01 | 2017-06-01 | A kind of sulfurization forming apparatus of saturated nitrile rubber nylon valve block |
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|---|---|---|---|
| CN201720625448.1U CN206780819U (en) | 2017-06-01 | 2017-06-01 | A kind of sulfurization forming apparatus of saturated nitrile rubber nylon valve block |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020721A (en) * | 2017-06-01 | 2017-08-08 | 南京金三力高分子科技有限公司 | The sulfurization forming apparatus and manufacture method of a kind of saturated nitrile rubber nylon valve block |
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2017
- 2017-06-01 CN CN201720625448.1U patent/CN206780819U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020721A (en) * | 2017-06-01 | 2017-08-08 | 南京金三力高分子科技有限公司 | The sulfurization forming apparatus and manufacture method of a kind of saturated nitrile rubber nylon valve block |
| CN107020721B (en) * | 2017-06-01 | 2022-12-23 | 南京金三力高分子科技有限公司 | Vulcanization molding device and manufacturing method of saturated nitrile rubber nylon valve plate |
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