CN103203830B - Circular moulding device of rubber diaphragms for automobile brake chambers - Google Patents
Circular moulding device of rubber diaphragms for automobile brake chambers Download PDFInfo
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- CN103203830B CN103203830B CN201310132780.0A CN201310132780A CN103203830B CN 103203830 B CN103203830 B CN 103203830B CN 201310132780 A CN201310132780 A CN 201310132780A CN 103203830 B CN103203830 B CN 103203830B
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Abstract
The invention discloses a circular moulding device of rubber diaphragms for automobile brake chambers. The device comprises a vacuum vulcanizing press, an injection vulcanizing press, a demoulding mechanism and a rubber diaphragm moulding mould, wherein the vacuum vulcanizing press is used for primary vulcanization treatment of the rubber diaphragms; the injection vulcanizing press is used for secondary vulcanization treatment; and the demoulding mechanism is used for separating compression rings from lower moulds in the rubber diaphragm moulding mould. The device breaks through a traditional secondary vulcanization moulding process, injects glue into a mould cavity via an injection machine, carries out vulcanization treatment while feeding, has high degree of automation, saves manpower input, has high product production efficiency and stable quality and reduces the production cost.
Description
Technical field
The present invention relates to rubber diaphragm of automobile brake chamber secondary injecting glue sulfurization forming apparatus, especially a kind of circulation forming device adopting injection vulcanizing press to carry out post-cure process.
Background technology
Existing rubber diaphragm of automobile brake chamber post-cure shaped device is open in the Chinese patent of 201010541771.3 in the patent No., disclose two vacuum vulcanization press, mould emptier, diaphragm of rubber mould in the above documents, first vacuum vulcanization press is used for a vulcanizing treatment of diaphragm of rubber, second vacuum vulcanization press is used for the post-cure process of diaphragm of rubber, and mould emptier is used for the lock out operation of pressure ring and counterdie in diaphragm of rubber mould; Be provided with intermediate transport mechanism between press and press and between press and mould emptier, formed thus and again to the working plate of first vacuum vulcanization press close moving loop to the second vacuum vulcanization press to mould emptier from the first vacuum vulcanization press by the transition of intermediate transport mechanism.This shaped device arranges station according to the manufacturing procedure of diaphragm of rubber and shortens the production cycle, is convenient to continuously, simplify the production operation of diaphragm of rubber.But, existing diaphragm of rubber shaped device all realizes based on existing processing technology, and namely twice sulfuration all carries out vulcanizing treatment after adding sizing material, in order to improve the production efficiency of diaphragm of rubber, technical staff constantly studies diaphragm of rubber shaped device, seeking breakthrough.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of rubber diaphragm of automobile brake chamber circulation forming device, this shaped device is under the constant prerequisite of diaphragm of rubber sulfidization molding technique, break traditional post-cure moulding process, in die cavity, inject sizing material, without the need to hand stock by injector, automatically complete post-cure process, decrease artificial input, improve the production efficiency of air chamber rubber diaphragm, reduce production cost; And this shaped device immediately heats while material feeding, the good fluidity of sizing material, avoid traditional secondary sulfuration process after secondary material loading, mould causes the lower glue layer local deformation of vulcanized air chamber diaphragm when extruding sizing material, lower glue layer is misplaced or uneven thickness, and then the situation affecting end product quality occur; In addition, the present invention arranges station according to diaphragm of rubber manufacturing procedure, at utmost shortens the production cycle of diaphragm of rubber, thus improves utilization rate of equipment and installations, further increase production efficiency.
For achieving the above object, rubber diaphragm of automobile brake chamber circulating sulfuration device of the present invention, comprise vacuum vulcanization press, injection vulcanizing press, mould emptier, diaphragm of rubber curing forming mold, wherein, vacuum vulcanization press is used for a vulcanizing treatment of diaphragm of rubber, injection vulcanizing press is used for the post-cure process of diaphragm of rubber, and mould emptier is used for the lock out operation of pressure ring and counterdie in diaphragm of rubber curing forming mold, working plate, from the input of press side, exports from opposite side, and along the arrangement of working plate I/O direction point-blank, vacuum vulcanization press delivery outlet is just to injection vulcanizing press input port, and period is connected mutually by twilight orbit for two press, mould emptier is provided with working plate supporting track, working plate is equally from the input of mould emptier side, and export from opposite side, mould emptier is positioned at two press sides, and its working plate I/O direction parallels with two press orientations, between injection vulcanizing press delivery outlet and mould emptier input port, between mould emptier delivery outlet and vacuum vulcanization press input port, be provided with intermediate transport mechanism, formed thus and again through intermediate transport mechanism to mould emptier again through intermediate transport mechanism to the working plate of vacuum vulcanization press close moving loop through twilight orbit to injection vulcanizing press from vacuum vulcanization press, press and mould emptier are provided with the driving mechanism exporting its upper table plate, counterdie in diaphragm of rubber curing forming mold is fixed on working plate, and pressure ring is sleeved on counterdie, and one time sulfuration patrix is fixed on vacuum vulcanization press head, and post-cure patrix is fixed on injection vulcanizing press head, described injection vulcanizing press is equipped with injector, the head of injection vulcanizing press is fixed with runner plate from top to bottom successively, thermal insulation board and cope match-plate pattern, described post-cure patrix is arranged on the lower surface of described cope match-plate pattern, described runner plate is provided with glue feeding opening and plastic hole, described glue feeding opening is connected with the gum outlet of described injector, runner plate is provided with the runner connecting glue feeding opening and described plastic hole, described thermal insulation board, the hole for injecting glue of up/down perforation is provided with in cope match-plate pattern and post-cure patrix, described hole for injecting glue upper end is connected with described plastic hole, hole for injecting glue lower end is positioned at the radial outside of the die cavity of post-cure patrix, and and be provided with connectivity slot between the die cavity of cope match-plate pattern, described working plate move after making post-cure patrix and counterdie be in matched moulds state, the passage that sizing material enters the section sealing of described die cavity is formed by glue feeding opening, runner, plastic hole, hole for injecting glue and described link slot, post-cure heater is installed, the passage of heat that described channel partition is become to be positioned at the cold passage above thermal insulation board and is positioned at below thermal insulation board by thermal insulation board below thermal insulation board, when working plate moves down die sinking, below post-cure patrix, there is enough spaces, laterally shift out together with rubber wherein to allow working plate to carry counterdie, and rubber residual in the described passage of heat can be removed.
Further, described diaphragm of rubber curing forming mold is the multiple mode structure including some cover curing forming mold unit, comprise lower bolster, middle template, the first cope match-plate pattern, the second cope match-plate pattern, the counterdie in each unit, pressure ring, a sulfuration patrix and post-cure patrix are separately positioned on lower bolster, middle template, the first cope match-plate pattern and the second cope match-plate pattern.
Further, described post-cure heater is clamped between described thermal insulation board and described cope match-plate pattern, or, be embedded on thermal insulation board or cope match-plate pattern.
Further, described runner plate is fitted tightly by dismountable upper, middle and lower-ranking laminar flow guidance tape and forms, and offers flow path groove between the laminar flow guidance tape of described upper, middle and lower, and when upper, middle and lower laminar flow guidance tape fits tightly, described flow path groove forms described runner.
Further, the axis of described hole for injecting glue parallels with the axis of described post-cure patrix, and hole for injecting glue is the bellmouth that radial dimension increases from the top down gradually.
Further, the axis of described plastic hole parallels with the axis of described post-cure patrix, and plastic hole is the bellmouth that radial dimension reduces from the top down gradually, the junction of plastic hole and described hole for injecting glue is that sizing material passage inside radius is minimum, forms the breaking part when passage of heat is separated with sizing material in cold passage simultaneously.
Further, described runner plate is cooled by circulation cooling oil.
The present invention by replacing by injection vulcanizing press the post-cure process that vacuum vulcanization press completes diaphragm of rubber on the streamlined process units of existing diaphragm of rubber, utilize injector that sizing material is injected die cavity, break the limitation can only carrying out post-cure in existing technique after upper complete sizing material, to the new approach that the production of air chamber rubber diaphragm provides, improve automaticity, reduce and manually drop into; The runner entering sizing material is separated in cold logical heat and the passage of heat by thermal insulation board, and the sizing material in cold passage can not cure, so without the need to cleaning after each processing, only needs to clear up the passage of heat; Because hole for injecting glue arranges tapered hole, be convenient to clear up the sizing material in hole for injecting glue; The breaking part of sizing material in heat of dissociation passage and cold passage is convenient in the narrow footpath of hole for injecting glue and junction, plastic hole; The set-up mode of upper stream guidance tape and underflow guidance tape is convenient to the processing of runner plate; Radial outside hole for injecting glue lower end being arranged in the die cavity of cope match-plate pattern can make diaphragm of rubber can not hurt diaphragm of rubber body as much as possible in follow-up deburring process.In addition, diaphragm of rubber curing forming mold is the multiple mode structure including some cover curing forming mold unit, can at the multiple diaphragm of rubber of time processing, and efficiency significantly improves.
Accompanying drawing explanation
Fig. 1 is that circulation forming device of the present invention overlooks view;
Fig. 2 is that the present invention post-cure patrix and counterdie in multiple mode structure are in the schematic diagram of matched moulds state;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is that the present invention post-cure patrix and counterdie in single mode structure are in the schematic diagram of matched moulds state;
Fig. 5 is the top view of Fig. 4.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is elaborated.
As shown in Fig. 1-Fig. 3; rubber diaphragm of automobile brake chamber circulation forming device of the present invention comprises vacuum vulcanization press 1, injection vulcanizing press 2, mould emptier 3 and diaphragm of rubber curing forming mold; diaphragm of rubber curing forming mold is the multiple mode structure including four cover curing forming mold unit; comprise lower bolster 107, middle template 106, first cope match-plate pattern, the second cope match-plate pattern 105, counterdie 109, pressure ring 110, sulfuration patrix and post-cure patrix 108 are separately positioned on lower bolster 107, middle template 106, first cope match-plate pattern and the second cope match-plate pattern 105.
Vacuum vulcanization press 1 is for a vulcanizing treatment of diaphragm of rubber; Injection vulcanizing press 2 is for the post-cure process of diaphragm of rubber, and the I/O direction of two press upper table plates 5 is fore-and-aft direction, and the I/O port of two press is positioned on straight line; Be provided with middle stand 6 between vacuum vulcanization press 1 delivery outlet and injection vulcanizing press 2 input port, middle stand 6 be provided with for working plate 5 from vacuum vulcanization press 1 delivery outlet to the twilight orbit of injection vulcanizing press 2 input port; Mould emptier 3 is positioned on the right side of press, and the I/O direction of the working plate 5 on it is similarly fore-and-aft direction; Between injection vulcanizing press 2 delivery outlet and mould emptier 3 input port, between mould emptier 3 delivery outlet and vacuum vulcanization press 1 input port, be provided with the track be made up of two guide rails 7, and track arranged the transfer bogie 4 that working plate 5 can be sent to the other end from track one end; Formed thus in Fig. 1 shown in arrow; from vacuum vulcanization press 1 through middle stand 6 to injection vulcanizing press 2; again from injection vulcanizing press 2 through transfer bogie 4 to mould emptier 3, then get back to the closed moving loop of working plate 5 of vacuum vulcanization press 1 through transfer bogie 4 from mould emptier 3.
Vacuum vulcanization press 1 belongs to prior art, repeats no more in this patent, injection vulcanizing press 2 is for the post-cure process of diaphragm of rubber, injection vulcanizing press 2 is provided with injector 100, the head of injection vulcanizing press 2 is fixed with runner plate from top to bottom successively, thermal insulation board 103, sulfuration heating plate 104 and the second cope match-plate pattern 105, post-cure patrix 108 is arranged on the lower surface of the second cope match-plate pattern 105, runner plate upper surface is provided with the glue feeding opening 115 connected with the gum outlet of injector 100, silently 116 for reinforcing the connection of gum outlet and glue feeding opening 115, glue feeding opening 115 connects the plastic hole 113 being positioned at runner plate lower surface by the runner 114 in runner plate, for the ease of the processing of runner plate, runner plate is by upper stream guidance tape 101, middle level runner plate 101 ' and underflow guidance tape 102 are formed, upper stream guidance tape 101, middle level runner plate 101 ' and underflow guidance tape 102 fit tightly from top to bottom, glue feeding opening 115 is arranged on upper stream guidance tape 101 upper surface, plastic hole 113 is arranged on underflow guidance tape 101 ' lower surface, upper stream guidance tape 101 lower surface and middle level runner plate 101 ' lower surface are provided with flow path groove, middle level runner plate 101 ' is arranged up/down perforation to be used for connection and to be positioned at the connecting hole of the flow path groove on upper stream guidance tape 101 and middle level runner plate 101 ', flow path groove is at upper stream guidance tape 101, middle level runner plate 101 ' and underflow guidance tape 102 fit tightly lower formation runner 114, the hole for injecting glue 112 of up/down perforation is provided with in thermal insulation board 103, sulfuration heating plate 104, second cope match-plate pattern 105 and post-cure patrix 108, hole for injecting glue 112 upper end is connected with plastic hole 113, hole for injecting glue 112 lower end is positioned at the radial outside of the die cavity 111 of post-cure patrix 108, and and be provided with connectivity slot between the die cavity 111 of the second cope match-plate pattern 105, working plate 5 move after making post-cure patrix 108 and counterdie 109 be in matched moulds state, by glue feeding opening 115, runner 114, plastic hole 113, hole for injecting glue 112 and link slot formed sizing material enter die cavity 111 end face close passage, this passage is separated into the cold passage be positioned at above thermal insulation board 103 and the passage of heat be positioned at below thermal insulation board 103 by thermal insulation board 103, due to the temperature insulating of thermal insulation board, in cold passage, sizing material is interior unvulcanized state, after cooling, sizing material can not solidify, in the passage of heat, sizing material is sulfided state, and after cooling, sizing material can solidify, when working plate 5 moves down die sinking, the space below post-cure patrix 108 allows working plate 100 to carry counterdie 109 and shifts out and remove rubber residual in the passage of heat together with rubber is wherein horizontal.
The form that arranges of runner 114 has multiple, another kind of form can also be adopted, runner plate is by upper stream guidance tape 101, middle level runner plate 101 ' and underflow guidance tape 102 fit tightly from top to bottom and form, glue feeding opening 115 is arranged on upper stream guidance tape 101 upper surface, plastic hole 113 is arranged on underflow guidance tape 102 lower surface, middle level runner plate 101 ' upper surface and underflow guidance tape 102 upper surface are provided with flow path groove, middle level runner plate 101 ' is arranged up/down perforation to be used for connection and to be positioned at the connecting hole of the flow path groove on middle level runner plate 101 ' and underflow guidance tape 102, flow path groove is at upper stream guidance tape 101, middle level runner plate 101 ' and underflow guidance tape 102 fit tightly lower formation runner 104.
The axis of hole for injecting glue 112 parallels with the axis of post-cure patrix 108, and the bellmouth that hole for injecting glue 112 increases from the top down gradually for radial dimension.This mode is convenient to clear up the vulcanized rubber in hole for injecting glue, and the residual sizing material in hole for injecting glue 112 can be extracted by operating personnel very easily.
The axis of plastic hole 113 parallels with the axis of post-cure patrix 108, and the bellmouth that plastic hole 113 reduces from the top down gradually for radial dimension.Plastic hole 113 is that sizing material passage inside radius is minimum with the junction of hole for injecting glue 112, like this when removing the residual sizing material in hole for injecting glue 112, and the more easy fracture of the sizing material in hole for injecting glue 112.
If when the heat-insulating capability of thermal insulation board 103 cannot meet, can adopt the mode of circulation cooling oil that runner plate is lowered the temperature.
As shown in Figure 4, Figure 5, for diaphragm of rubber curing forming mold is the single mode structure only including 1 cover curing forming mold unit, single mode structure is with the difference of multiple mode structure, die unit quantity is different, runner plate also can from three multiple mode structure piece, reduce to two pieces in single mode structure, certainly, the form of runner plate is only not limited to this.
Runner plate is except adopting Split type structure, can also adopt and utilize drill bit to offer the mode of runner on bulk flow guidance tape, finally by unnecessary borehole sealing, runner plate internal structure can be formed equally like this, but Split type structure is comparatively time-consuming relatively, is also unfavorable for the cleaning of runner plate inner flow passage.
See Fig. 1, on the closed moving loop of working plate 5, have two transfer bogiies 4, for convenience of description, two dollies are called 4A, 4B.
Below for one of them working plate 5, its operation process is described:
1) the dolly 4A being arranged in vacuum vulcanization press 1 input port place utilizes its driving mechanism that the working plate 5 on dolly 4A is outputted to vacuum vulcanization press 1, and turns back to mould emptier 3 equipped at outlet port subsequently;
2) sizing material in vacuum vulcanization press 1 pair of working plate 5 mold and canvas carry out a vulcanizing treatment, and after process terminates, vacuum vulcanization press 1 utilizes self driving mechanism to be outputted to by working plate 5 on middle stand 6;
3) working plate 5 is waited for and is entered in injection vulcanizing press 2 on middle stand 6, the air chamber diaphragm that the part of operating personnel after middle stand 6 place checks a vulcanizing treatment is shaping, middle stand 6 utilizes self driving mechanism to be outputted to by working plate 5 in injection vulcanizing press 2;
4) inject the injection vulcanizing press 100 pairs of working plate 5 mold injecting glues on vulcanizing press 2, and carry out post-cure process, by self driving mechanism working plate 5 outputted in the completed and be positioned on the dolly 4B of its equipped at outlet port;
5) dolly 4B carries working plate 5 and moves to mould emptier 3, after moving into place, is outputted on mould emptier 3 by working plate 5 by self driving mechanism, and turns back to injection vulcanizing press 2 equipped at outlet port subsequently;
6) mould emptier 3 utilizes wherein template hoisting device that middle template is promoted disengaging lower bolster, diaphragm of rubber finished product is taken out by operating personnel, and put into a new vulcanized rubber and canvas in counterdie after, place back on lower bolster by middle template, working plate 5 to be outputted to by self driving mechanism and is positioned on the dolly 4A of its equipped at outlet port by finally demould mechanism 3;
7) dolly 4A carries working plate 5 to vacuum vulcanization press 1 input port place, waits for the beginning of next diaphragm of rubber process-cycle.
Above-mentioned example is just for illustration of the present invention, and embodiments of the present invention are not limited to these examples, and what those skilled in the art made meets the various detailed description of the invention of inventive concept all within protection scope of the present invention.
Claims (1)
1. rubber diaphragm of automobile brake chamber circulation forming device, comprise vacuum vulcanization press, injection vulcanizing press, mould emptier, diaphragm of rubber curing forming mold, wherein, vacuum vulcanization press is used for a vulcanizing treatment of diaphragm of rubber, injection vulcanizing press is used for the post-cure process of diaphragm of rubber, and mould emptier is used for the lock out operation of pressure ring and counterdie in diaphragm of rubber curing forming mold, working plate, from the input of press side, exports from opposite side, and along the arrangement of working plate I/O direction point-blank, vacuum vulcanization press delivery outlet is just to injection vulcanizing press input port, and period is connected mutually by twilight orbit for two press, mould emptier is provided with working plate supporting track, working plate is equally from the input of mould emptier side, and export from opposite side, mould emptier is positioned at two press sides, and its working plate I/O direction parallels with two press orientations, between injection vulcanizing press delivery outlet and mould emptier input port, between mould emptier delivery outlet and vacuum vulcanization press input port, be provided with intermediate transport mechanism, formed thus and again through intermediate transport mechanism to mould emptier again through intermediate transport mechanism to the working plate of vacuum vulcanization press close moving loop through twilight orbit to injection vulcanizing press from vacuum vulcanization press, press and mould emptier are provided with the driving mechanism exporting its upper table plate, counterdie in diaphragm of rubber curing forming mold is fixed on working plate, and pressure ring is sleeved on counterdie, and one time sulfuration patrix is fixed on vacuum vulcanization press head, and post-cure patrix is fixed on injection vulcanizing press head, it is characterized in that, described injection vulcanizing press is equipped with injector, the head of injection vulcanizing press is fixed with runner plate from top to bottom successively, thermal insulation board and cope match-plate pattern, described post-cure patrix is arranged on the lower surface of described cope match-plate pattern, described runner plate is provided with glue feeding opening and plastic hole, described glue feeding opening is connected with the gum outlet of described injector, runner plate is provided with the runner connecting glue feeding opening and described plastic hole, described thermal insulation board, the hole for injecting glue of up/down perforation is provided with in cope match-plate pattern and post-cure patrix, described hole for injecting glue upper end is connected with described plastic hole, hole for injecting glue lower end is positioned at the radial outside of the die cavity of post-cure patrix, and and be provided with connectivity slot between the die cavity of cope match-plate pattern, described working plate move after making post-cure patrix and counterdie be in matched moulds state, the passage that sizing material enters the section sealing of described die cavity is formed by glue feeding opening, runner, plastic hole, hole for injecting glue and described link slot, post-cure heater is installed, the passage of heat that described channel partition is become to be positioned at the cold passage above thermal insulation board and is positioned at below thermal insulation board by thermal insulation board below thermal insulation board, when working plate moves down die sinking, below post-cure patrix, there is enough spaces, laterally shift out together with rubber wherein to allow working plate to carry counterdie, and rubber residual in the described passage of heat can be removed.
2. rubber diaphragm of automobile brake chamber circulation forming device as claimed in claim 1, it is characterized in that, described diaphragm of rubber curing forming mold is the multiple mode structure including some cover curing forming mold unit, comprise lower bolster, middle template, the first cope match-plate pattern, the second cope match-plate pattern, the counterdie in each unit, pressure ring, a sulfuration patrix and post-cure patrix are separately positioned on lower bolster, middle template, the first cope match-plate pattern and the second cope match-plate pattern.
3. rubber diaphragm of automobile brake chamber circulation forming device as claimed in claim 1, it is characterized in that, described post-cure heater is clamped between described thermal insulation board and described cope match-plate pattern, or, be embedded on thermal insulation board or cope match-plate pattern.
4. rubber diaphragm of automobile brake chamber circulation forming device as claimed in claim 1, it is characterized in that, described runner plate is fitted tightly by dismountable upper, middle and lower-ranking laminar flow guidance tape and forms, flow path groove is offered between the laminar flow guidance tape of described upper, middle and lower, when upper, middle and lower laminar flow guidance tape fits tightly, described flow path groove forms described runner.
5. rubber diaphragm of automobile brake chamber circulation forming device as claimed in claim 1, it is characterized in that, the axis of described hole for injecting glue and described both post-cure patrixes parallels, and hole for injecting glue is the bellmouth that radial dimension increases from the top down gradually.
6. rubber diaphragm of automobile brake chamber circulation forming device as claimed in claim 5, it is characterized in that, the axis of described plastic hole and described both post-cure patrixes parallels, and plastic hole is the bellmouth that radial dimension reduces from the top down gradually, the junction of plastic hole and described hole for injecting glue is that sizing material passage inside radius is minimum, forms the breaking part when passage of heat is separated with sizing material in cold passage simultaneously.
7. rubber diaphragm of automobile brake chamber circulation forming device as claimed in claim 1, it is characterized in that, described runner plate is cooled by circulation cooling oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310132780.0A CN103203830B (en) | 2013-04-17 | 2013-04-17 | Circular moulding device of rubber diaphragms for automobile brake chambers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310132780.0A CN103203830B (en) | 2013-04-17 | 2013-04-17 | Circular moulding device of rubber diaphragms for automobile brake chambers |
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| Publication Number | Publication Date |
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| CN103203830A CN103203830A (en) | 2013-07-17 |
| CN103203830B true CN103203830B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310132780.0A Active CN103203830B (en) | 2013-04-17 | 2013-04-17 | Circular moulding device of rubber diaphragms for automobile brake chambers |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6337120B1 (en) * | 1998-06-26 | 2002-01-08 | Nok Corporation | Gasket for layer-built fuel cells and method for making the same |
| JP2000202838A (en) * | 1999-01-11 | 2000-07-25 | Daikyo Seiko Ltd | Manufacture of laminated rubber element and the laminated rubber element |
| CN101987493B (en) * | 2010-11-12 | 2012-11-14 | 宁国市海天力工业发展有限公司 | Rubber diaphragm circular vulcanizing device for brake chamber in automobiles |
| CN101987494B (en) * | 2010-11-12 | 2012-11-14 | 宁国市海天力工业发展有限公司 | Automotive brake chamber rubber diaphragm cycle molding device |
| CN102179902A (en) * | 2011-03-16 | 2011-09-14 | 苏州腾行精密模具有限公司 | Rubber ejecting molding mold with cold runner |
| CN202062586U (en) * | 2011-05-16 | 2011-12-07 | 东莞市科盛实业有限公司 | Multi-nozzle cold runner system |
| CN103009572A (en) * | 2013-01-04 | 2013-04-03 | 无锡朴业橡塑有限公司 | Rubber cold runner injection vulcanization mold |
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2013
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