CN103286916A - Mold for injection molding, and manufacturing method for rubber product molded by using same - Google Patents
Mold for injection molding, and manufacturing method for rubber product molded by using same Download PDFInfo
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- CN103286916A CN103286916A CN2012102851057A CN201210285105A CN103286916A CN 103286916 A CN103286916 A CN 103286916A CN 2012102851057 A CN2012102851057 A CN 2012102851057A CN 201210285105 A CN201210285105 A CN 201210285105A CN 103286916 A CN103286916 A CN 103286916A
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Abstract
The present invention provides a mold for injection molding, and a manufacturing method for a rubber product molded by using the same. The mold can prevent rubber in a sprue portion from fracturing at the root of the rubber and residing in the sprue portion. A mold main body is divided into a product forming region and a rubber material feeding region, wherein the product forming region is provided with a mold cavity for forming the rubber product and a heater for heating and vulcanizing the rubber materials in the mold cavity; and the rubber material feeding region is provided with a rubber feeding flow path comprising a cooling runner portion, a sprue portion and a pouring gate portion. A thermal baffle plate is disposed between the product forming region and the rubber material feeding region. The thermal baffle plate inhibits the temperature of the rubber materials in the sprue portion, the runner portion and the pouring gate portion from increasing.
Description
Technical field
The present invention relates to when pulling down rubber product from mould, the rubber that suppresses in the sprue portion that rubber product exposes fractures and the manufacture method that residues in the die injection moulding of (in the mould) in the sprue portion and use the rubber product of this mould at its root.
Background technology
For example shown in Fig. 7 (A), (B), in the mould A of the use in injection molding of rubber product W being carried out injection mo(u)lding, elastomeric material is filled in rubber product by rubber supply stream b and forms in the die cavity c of usefulness, and this rubber is supplied with stream b and comprised cooling cross gate portion (cold runner) (not shown), the b1 of sprue portion, the b2 of cross gate portion and gate part (gate) b3.And then, in die cavity c, the elastomeric material of filling is carried out baking, form rubber product W thus.
Herein, when pulling down rubber product W from mould A, for after making the rubber g(in the described sprue b1 of portion, the b2 of cross gate portion and the gate part b3, be called sometimes and expose rubber g.) also be removed with rubber product W, it is coniform that the described sprue b1 of portion forms taper. with being integralIn addition, in the figure, show described rubber product W and be the situation of the rubber rollers that conveyance of sheets uses, carrying out cutting away the plug that label e represents from rubber product W after the injection mo(u)lding.
Yet under the situation of rubber product W, there are the following problems: when pulling down this rubber product W from mould A, the described rubber g that exposes fractures at the root j of the b1 of sprue portion, and the rubber g1 in the b1 of sprue portion residues in die side and can't take out.
As its reason, can infer following reason.Because the heat of sulfuration usefulness, the temperature of mould rises equally, so be not only the rubber in the die cavity c, the rubber g in the b1 of sprue portion, the b2 of cross gate portion and the gate part b3 also vulcanizes simultaneously.Therefore, the interior pressure of mould A is very big, and the inner surface of the b1 of sprue portion raises with the pressure that contacts between the inner rubber g1, thereby adhesive force also increases.Therefore, described rubber g1 is difficult to peel off from the b1 of sprue portion, produces fracture at described root j.In addition, residuing in rubber g1 in the b1 of sprue portion becomes the reason that the productivity ratio that can't carry out continuous automatic moulding etc. reduces, thereby must be removed.
In addition, in following patent documentation 1, put down in writing an example of the die injection moulding of the rubber rollers that conveyance of sheets uses.
Patent documentation 1: TOHKEMY 2000-15666 communique
Summary of the invention
Therefore, the manufacture method that the object of the present invention is to provide die injection moulding and use the rubber product of this mould, the temperature of elastomeric material of utilizing thermal insulation board to suppress the inside of sprue portion, cross gate portion and gate part rises, when pulling down rubber product from mould, the rubber that can suppress in the sprue portion residues in the sprue portion in its root fracture thus.
In order to solve above-mentioned problem, the invention of present techniques scheme 1 is the die injection moulding that possesses the mold that can be divided into fixation side and the die main body of the mold of movable side,
Described die injection moulding is characterised in that described die main body is divided into product and forms zone and elastomeric material supply area,
Described product forms the zone to have: rubber product forms the die cavity of usefulness, and this die cavity is closure by the divisional plane of aiming at each described mold; And heater, this heater carries out baking to the elastomeric material that is filled in this die cavity,
Described elastomeric material supply area has rubber and supplies with stream, and this rubber is supplied with stream and comprised cooling cross gate portion, sprue portion, cross gate portion and gate part, and fills the elastomeric material from injection moulding apparatus in the described die cavity, and
Be provided with thermal insulation board between described product forms zone and elastomeric material supply area, this thermal insulation board suppresses because form regional heat causes the temperature rising of elastomeric material from the inside of described sprue portion, cross gate portion and gate part to the side transmission of elastomeric material supply area from described product.
And, in technical scheme 2, it is characterized in that, described thermal insulation board comprises first thermal insulation board by the cross part of described die cavity and gate part, this first thermal insulation board possesses thinning part, this thinning part depression is arranged at least one side's of described first thermal insulation board side, reduces the contact area that this side and adjacent described product form zone or elastomeric material supply area, hinders from described product and forms regional heat transmission to elastomeric material supply area side.
And, in technical scheme 3, it is characterized in that, described thermal insulation board comprises first thermal insulation board by the cross part of described die cavity and gate part, this first thermal insulation board possesses through hole portion, this through hole portion connects the side that extends to the opposing party from a side's of described first thermal insulation board side, reduce the contact area that each described side and adjacent described product form zone and elastomeric material supply area, hinders from described product and forms regional heat transmission to elastomeric material supply area side.
And, in technical scheme 4, it is characterized in that the thermal conductivity of described thermal insulation board is below the 20W/mK.
And, in technical scheme 5, it is characterized in that described rubber product is rubber rollers.
And technical scheme 6 is manufacture methods of rubber product, it is characterized in that, has the rubber product that has used the die injection moulding that any scheme in the technical scheme 1～5 puts down in writing and forms operation.
As mentioned above, the present invention is divided into product with die main body and forms zone and elastomeric material supply area, wherein, product forms the zone and has the die cavity of rubber product formation usefulness and the heater that baking is used, this elastomeric material supply area has the rubber of filled rubber material in the described die cavity and supplies with stream, and, this product form the zone and the elastomeric material supply area between be provided with thermal insulation board.This thermal insulation board suppress because of form from product regional heat to the side transmission of elastomeric material supply area cause described sprue portion, cross gate portion and gate part (below, be called sprue portion etc. sometimes.) the temperature of elastomeric material of inside rise.
Therefore, compare with the elastomeric material in the die cavity, the sulfuration that can postpone the elastomeric material of described sprue portion etc. begins period.That is, when the elastomeric material in the die cavity is curing, produce thermal expansion and in press when rising, can reduce the pressure in the mould by the flowing of elastomeric material of described sprue portion etc.Its result can reduce contacting pressure, adhesive force between sprue portion inner surface and the inner elastomeric material, thereby can suppress elastomeric material in the fracture of the root portion of sprue portion, and then can suppress elastomeric material and residue in the sprue portion.
Description of drawings
Fig. 1 is the cutaway view that an embodiment of die injection moulding of the present invention is shown.
Fig. 2 is the stereogram of schematically illustrated its die main body portion.
Fig. 3 is the exploded perspective view of the part of schematically illustrated thermal insulation board.
Fig. 4 amplifies the cutaway view that sprue portion, cross gate portion and gate part are shown.
Fig. 5 is that front with die cavity is with the partial sectional view shown in first thermal insulation board.
Fig. 6 is the partial sectional view that the rear end side of die cavity is shown.
Among Fig. 7, (A) figure is the cutaway view that the part of existing die injection moulding is shown, and (B) figure is the stereogram that the part of the rubber product that utilizes this mould and form is shown.
Label declaration is as follows:
1 ... die injection moulding; 2 ... mold; 3 mold; 4 ... die main body; 8 ... die cavity; 9 ... heater; 10 ... product forms the zone; 11 ... the elastomeric material supply area; 12 ... thermal insulation board; 12A ... first thermal insulation board; 13 ... injection moulding apparatus; 14 ... rubber is supplied with stream; 15 ... cooling cross gate portion; 16 ... sprue portion; 17 ... cross gate portion; 18 ... gate part; 40 ... thinning part; G ... elastomeric material; J ... cross part; S ... divisional plane; W ... rubber product.
The specific embodiment
Below, embodiments of the present invention are elaborated.
As shown in Figure 1, 2, the die injection moulding 1 of present embodiment possesses die main body 4, and this die main body 4 can be divided into the mold 2 of fixation side and the mold 3 of movable side.In this example, though the mold 3 that shows the below for example also can be supported the mold 2 of top for moving by the situation of lifting platform 5 supportings for moving up and down.
In this example, showing the rubber rollers that the conveyance of sheets that utilizes die injection moulding 1 for example to form to use uses for example in duplicator etc. is the situation of rubber product W.In addition, label among the figure 6 expression plugs carry out injection mo(u)lding around 6 pairs of rubber rollers of this plug, and after injection mo(u)lding described plug 6 are pulled down from rubber rollers.And label 7 expression plug holding devices are concentric with die cavity 8 with described plug 6 supportings.
Next, described die main body 4 is divided into product and forms zone 10 and elastomeric material supply area 11, and, be provided with thermal insulation board 12 between this product forms zone 10 and elastomeric material supply area 11, this thermal insulation board 12 hinders and forms heat 11 side transmission to the elastomeric material supply area of regional 10 from described product.
Described product forms zone 10 and refers to have the zone that die cavity 8 and heater 9 form rubber product W, described die cavity 8 forms by making each described mold 2,3 divisional plane S be aligned with each other closure, and the elastomeric material G that 9 pairs of described heaters are filled in this die cavity 8 carry out baking.
Relative therewith, described elastomeric material supply area 11 is to have a zone that rubber is supplied with stream 14, supplies with stream 14 and will be filled in from the elastomeric material G of injection moulding apparatus 13 in the described die cavity 8 by this rubber.Described rubber supply stream 14 constitutes and comprises cooling cross gate portion 15, sprue portion 16, cross gate portion 17 and gate part 18.
The cooling cross gate portion 15 of this example, the one end is connected with the centre bore of the locating ring (locate ring) 20 of the upper surface that is arranged at die main body 4, and (being the right side in the accompanying drawings) extension forwards by die main body 4 inside.Described locating ring 20 is the connection metalworks that are connected with the spray nozzle part of described injection moulding apparatus 13.
And shown in Fig. 4 amplified, described sprue portion 16 formed and comprises: the path hole 16a of portion of path, the path hole 16a of portion of this path locate bending at the other end (being front end in this example) of described cooling cross gate portion 15 and extend downwards; And the tapered hole part 16b of taper, the tapered hole part 16b of this taper is connected with this path hole 16a of portion in concentric mode, and hole enlargement downwards.This sprue portion 16 is with the centre bore of the sprue sleeve pipe 21 of the tubulose that is configured to change in mould and form.
Described cross gate portion 17 is the intermediate flow passage that arrive gate parts 18 from sprue portion 16, and under the situation that is formed with a plurality of die cavities 8 as this example, cross gate portion 17 links between each gate part 18 and extends.Described gate part 18 is for the intake sections of elastomeric material G to die cavity 8 interior inflows, is arranged at each die cavity 8.
Described die cavity 8 is the contour shape with the outer shape of rubber product W coupling, in this example, forms the hole portion with the long size of the concentric rounded shape in cross section of described plug 6.And then described gate part 18 is arranged to for example be connected with the length direction front end of described die cavity 8 in concentric mode.In this example, be formed at the interior situation of mould abreast though show two row die cavities 8, but the formation quantity of die cavity 8 is not limited thereto, can be more than one or 3, and, be formed at the die cavity that the cross section of divisional plane S up and down is semicircle shape respectively and form this routine die cavity 8 with recess 8a aligning by making.
Next, this routine die main body 4 is carried out specific description.Shown in Fig. 2,3, the mold 3 of the downside that this is routine possesses:
(1) is formed with die cavity with the main body principal part 24 of the below of the bulk of recess 8a;
(2) be formed with cross gate with recess 17a and the main body pair portion 25 of door with the below of the bulk of recess 18a, wherein, cross gate has formed the latter half of described cross gate portion 17 with recess 17a, has formed the latter half of gate part 18 with recess 18a;
(3) be disposed at heat insulation plate body 26 between described main body principal part 24 and the main body pair portion 25;
(4) along the heat insulation plate body 27 of the lower surface of described main body principal part 24 configuration;
(5) along the heat insulation plate body 28 of the lower surface configuration of described main body pair portion 25; And
(6) via heat insulation plate body 27,28 described main body principal part 24 is linked all-in-one-piece base plate 29 with main body pair portion 25.
On the other hand, as shown in Figure 2, the mold 2 of upside possesses:
(7) formed the main body principal part 30 of die cavity with the top of the bulk of recess 8a;
(8) be formed with cross gate with recess 17a and the main body pair portion 31 of door with the top of the bulk of recess 18a, wherein, cross gate has formed the first half of described cross gate portion 17 with recess 17a, has formed the first half of gate part 18 with recess 18a;
(9) be disposed at heat insulation plate body 32 between described main body principal part 30 and the main body pair portion 31;
(10) along the heat insulation plate body 33 of the upper surface of described main body principal part 30 configuration;
(11) along the heat insulation plate body 34 of the upper surface configuration of described main body pair portion 31; And
(12) via heat insulation plate body 33,34 described main body principal part 30 is linked all-in-one-piece upper plate 35 with main body pair portion 31.
Described upper plate 35 comprises board 35U, 35L up and down, and described cooling cross gate portion 15 is formed between above-mentioned board 35U, the 35L up and down.In addition, in upper plate 35, be in this example between described cooling cross gate portion 15 and heat insulation plate body 33, it is shown in Figure 1 to dispose the cooling unit 36(that described cooling cross gate portion 15 is cooled off.）。This cooling unit 36 is for example by making cooling fluids such as cooling water circulate to cool off, and prevents that elastomeric material G from curing in described cooling cross gate portion 15.
And, described sprue portion 16 form on the above-below direction with below board 35L, heat insulation plate body 34 and main body pair portion 31 connect.And described heat insulation plate body 26,32 in the top, the lower end formed described door respectively with the part of recess 18a.And, at described main body principal part 24,30 up and down, dispose the heater 9 that the elastomeric material G in the die cavity 8 is carried out baking respectively.Use cartridge heater as this heater 9 in this example, for example, can also use the hot fluid that adds of steam etc.
Therefore, in this example, constituted described product by main body principal part 24,30 and formed zone 10.And, constituted described elastomeric material supply area 11 by main body pair portion 25,31 and upper plate 35.And, by heat insulation plate body 26,27,32,33 or heat insulation plate body 26,28,32,33 constituted described thermal insulation board 12.
Like this, between described product forms zone 10 and elastomeric material supply area 11, thermal insulation board 12 is set, suppresses to form from product heat 11 side transmission to the elastomeric material supply area of regional 10 thus.Therefore, compare with elastomeric material G in the die cavity 8, the sulfuration that can postpone the elastomeric material G of described sprue portion 16 grades begins period.That is, when the elastomeric material G in the die cavity 8 is curing, produce thermal expansion and in press when rising, can reduce the pressure in the mould by the flowing of elastomeric material G of described sprue portion 16 grades.Its result can reduce contacting pressure, adhesive force between sprue portion 16 inner surfaces and the inner elastomeric material G, thereby can suppress elastomeric material G in the root fracture of sprue portion 16, and then can suppress elastomeric material G and residue in the sprue portion 16.
Preferably, in order to realize effect of heat insulation, use 20 ° of thermal conductivitys under the C to form described thermal insulation board 12 as the as far as possible little material below the 20W/mK.As such material, for example in metal, can enumerate titanium, SUS etc., in inorganic material, can enumerate glass, pottery and various thermosetting resins etc.
And, more preferably, for the sulfuration of the elastomeric material G that postpones described sprue portion 16 grades begins period, as described thermal insulation board 12, form and have the first thermal insulation board 12A that passes described die cavity 8 and the cross part J of gate part 18.In this example, constitute the first thermal insulation board 12A by described heat insulation plate body 26,32.In this first thermal insulation board 12A, in order further to improve effect of heat insulation, with heat insulation plate body 26 be representative as shown in Figure 3, be provided with in its at least one side's side-facing depressions and make and form the thinning part 40 that the contact area of zone 10 or elastomeric material supply area 11 reduces with described product.By reducing contact area like this, can suppress to form zone 10 from product and further improve effect of heat insulation to the heat transmission of elastomeric material supply area 11 sides.Though the situation that is formed with thinning part 40 in the two sides of heat insulation plate body 26 shown in this figure also can only form above-mentioned thinning part 40 in either party side.And, as described thinning part 40, though preferably adopt the depressed part of the such groove shape of this example, also can adopt the depressed part of for example cheating the nest shape.
In addition, though illustrate, can also form the through hole portion that connects the side that extends to the opposing party from the side of one side at first thermal insulation board 12, replace described thinning part 40 with this.This through hole portion is also the same with described thinning part 40, has to hinder from described product by the contact area that reduces to form zone 10 and elastomeric material supply area 11 with adjacent described product to form the effect that transmit to the heat of elastomeric material supply area 11 sides in zone 10.In addition, can also use thinning part 40 and through hole portion with.In addition, the thermal insulation board beyond the first thermal insulation board 12A also can form thinning part 40 and/or through hole portion.
And, in this example, as shown in Figure 5, adjacent first, second flash groove 41,42 that is provided with in the rear end of described die cavity 8.When filled rubber material G in die cavity 8, this first, second flash groove 41,42 becomes the groove that absorbs and accumulate the elastomeric material G that exposes from die cavity 8.The internal face 41a of die cavity 8 sides of described first flash groove 41 is by being that the taper surface that the big angle θ more than 45 ° erects forms with the inflow direction with respect to elastomeric material G.Thus, the degree of depth of flash groove 41 can be increased, thereby the flash absorbability can be strengthened.Its result, the rigidity of the flash of sclerosis strengthens in flash groove 41, when extracting plug 6, can suppress the inner peripheral surface that described flash is attached to rubber rollers (rubber product W).And, by make described angle θ reach more than 45 ° than wide-angle, be easy to produce at first flash groove 41 flash of thin skin shapes.Therefore, in order to absorb the flash of this thin skin shape, be formed with second flash groove 42 at the rear side of first flash groove 41.In addition, preferably, second flash groove 42 forms darker than first flash groove 41.
In addition, form described rubber product W by the manufacture method with rubber product formation operation of having used described die injection moulding 1.
More than, though particularly preferred embodiment of the present invention is described in detail, the present invention is not limited to illustrated embodiment, can be deformed into variety of way and implement.
Embodiment
In order to confirm effect of the present invention, manufactured experimently the die injection moulding that forms structure shown in Figure 1 according to the specification of table 1, and, use this trial-production mould to form 240 rubber rollers that manifolder is used.
And then, utilize the surface temperature (maximum temperature) of thermoelectric tapered hole part to the surface temperature (maximum temperature) of having measured the product section of vulcanizing and sprue portion, and, when pulling down rubber product from mould, the rubber in the sprue portion is measured in the fracture of its root and the incidence that residues in sprue that residues in the sprue portion.Its result has been shown in the table 1.
Rubber product W is external diameter
Internal diameter
Length is the rubber rollers of 240mm, and the rubber of elastomeric material G is formed as shown in table 2.At table 2, EPDM uses the ESPRENE505A of Sumitomo Chemical Co's system, calcium carbonate uses the BF300 be equipped with northern efflorescence Industrial Co., Ltd system, titanium oxide uses Cronus titanium oxide (the Kronos Titanium Dioxide) KR380 of titanium Industrial Co., Ltd system, carbon black uses the SEAST 3 of Tokai Carbon Co., Ltd.'s system, oil uses the emerging PW-380 that produces of the emerging output light of bright dipping, and peroxide uses the PERCUMYL D of Japan Oil Co's system.
Die injection moulding is in mode parallel to each other and is set up in parallel the structure that 8 described rubber rollers form the die cavity of usefulness, and except first thermal insulation board of the cross part by die cavity and gate part, the specification of each injection molded usefulness mould is all identical.In addition, condition of molding is as follows, is the same terms in fact.
Cooling cross gate portion temperature---75 ℃
Curing temperature---160 ℃
Cure time---22 minutes
22 seconds injection times
As thermal insulation board, used respectively with thermal conductivity to be 15W/(mK) SUS304 be the thickness of the material sheet material as 10mm.And, except first thermal insulation board, do not form thinning part at other position.
Table 1
Table 2
| The composition of elastomeric material | |
| ·EPDM | 100 |
| |
10 |
| |
2 |
| Carbon black | 1 |
| Oil | 50 |
| Peroxide | 1 |
(mass parts)
It is as shown in the table, can confirm: comprise that by setting the temperature that the thermal insulation board of first thermal insulation board suppresses the tapered hole part place of sprue portion rises, the incidence that residues in sprue in the time of can suppressing to pull down rubber product from mould thus significantly.
Claims (6)
1. die injection moulding, this die injection moulding possess the die main body of the mold that can be divided into fixation side and the mold of movable side,
It is characterized in that,
Described die main body is divided into product and forms zone and elastomeric material supply area,
Described product forms the zone to have: rubber product forms the die cavity of usefulness, and this die cavity is closure by the divisional plane of aiming at each described mold; And heater, this heater carries out baking to the elastomeric material that is filled in this die cavity,
Described elastomeric material supply area has rubber and supplies with stream, and this rubber is supplied with stream and comprised cooling cross gate portion, sprue portion, cross gate portion and gate part, and fills the elastomeric material from injection moulding apparatus in the described die cavity, and
Be provided with thermal insulation board between described product forms zone and elastomeric material supply area, this thermal insulation board suppresses because form regional heat causes the temperature rising of elastomeric material from the inside of described sprue portion, cross gate portion and gate part to the side transmission of elastomeric material supply area from described product.
2. die injection moulding according to claim 1 is characterized in that,
Described thermal insulation board comprises first thermal insulation board by the cross part of described die cavity and gate part,
This first thermal insulation board possesses thinning part, this thinning part depression is arranged at least one side's of described first thermal insulation board side, reduce the contact area that this side and adjacent described product form zone or elastomeric material supply area, hinder from described product and form the zone to the heat transmission of elastomeric material supply area side.
3. die injection moulding according to claim 1 is characterized in that,
Described thermal insulation board comprises first thermal insulation board by the cross part of described die cavity and gate part,
This first thermal insulation board possesses through hole portion, this through hole portion connects the side that extends to the opposing party from a side's of described first thermal insulation board side, reduce the contact area that each described side and adjacent described product form zone and elastomeric material supply area, hinder from described product and form the zone to the heat transmission of elastomeric material supply area side.
4. according to each described die injection moulding in the claim 1～3, it is characterized in that,
The thermal conductivity of described thermal insulation board is 20W/(mK) below.
5. according to each described die injection moulding in the claim 1～4, it is characterized in that,
Described rubber product is rubber rollers.
6. the manufacture method of a rubber product is characterized in that,
The manufacture method of described rubber product has the rubber product that has used each described die injection moulding in the claim 1～5 and forms operation.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012045869A JP5568105B2 (en) | 2012-03-01 | 2012-03-01 | Injection mold and method for producing rubber product using the same |
| JP2012-045869 | 2012-03-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103286916A true CN103286916A (en) | 2013-09-11 |
| CN103286916B CN103286916B (en) | 2016-05-04 |
Family
ID=49088696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210285105.7A Expired - Fee Related CN103286916B (en) | 2012-03-01 | 2012-08-10 | Die injection moulding and use the manufacture method of the rubber product of this mould |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5568105B2 (en) |
| CN (1) | CN103286916B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526933A (en) * | 2014-12-22 | 2015-04-22 | 焦万成 | Single-side heat transfer electric hot press hot plate |
| CN108778669A (en) * | 2016-03-30 | 2018-11-09 | 株式会社京滨 | Mold and circuit device |
| CN112092292A (en) * | 2020-07-14 | 2020-12-18 | 安徽大卫模具有限公司 | Plastic arc plate injection mold |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111002537A (en) * | 2019-12-27 | 2020-04-14 | 江门市鑫辉密封科技有限公司 | Continuous rotary injection mold for valve oil seal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05269807A (en) * | 1992-03-27 | 1993-10-19 | Kinugawa Rubber Ind Co Ltd | Injection molding equipment |
| JPH09314611A (en) * | 1996-05-24 | 1997-12-09 | Nippon G Ii Plast Kk | Easily temperature controllable mold structure |
| JP2000015666A (en) * | 1998-06-29 | 2000-01-18 | Sumitomo Rubber Ind Ltd | Mold for injection molding |
| WO2008108045A1 (en) * | 2007-03-07 | 2008-09-12 | Hirotek Inc. | Tire vulcanizing apparatus |
| JP2011136527A (en) * | 2009-12-29 | 2011-07-14 | Sumitomo Rubber Ind Ltd | Vulcanizer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11129289A (en) * | 1997-10-29 | 1999-05-18 | Shin Etsu Polymer Co Ltd | Mold for injection molding of thermosetting resin |
-
2012
- 2012-03-01 JP JP2012045869A patent/JP5568105B2/en active Active
- 2012-08-10 CN CN201210285105.7A patent/CN103286916B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05269807A (en) * | 1992-03-27 | 1993-10-19 | Kinugawa Rubber Ind Co Ltd | Injection molding equipment |
| JPH09314611A (en) * | 1996-05-24 | 1997-12-09 | Nippon G Ii Plast Kk | Easily temperature controllable mold structure |
| JP2000015666A (en) * | 1998-06-29 | 2000-01-18 | Sumitomo Rubber Ind Ltd | Mold for injection molding |
| WO2008108045A1 (en) * | 2007-03-07 | 2008-09-12 | Hirotek Inc. | Tire vulcanizing apparatus |
| JP2011136527A (en) * | 2009-12-29 | 2011-07-14 | Sumitomo Rubber Ind Ltd | Vulcanizer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104526933A (en) * | 2014-12-22 | 2015-04-22 | 焦万成 | Single-side heat transfer electric hot press hot plate |
| CN108778669A (en) * | 2016-03-30 | 2018-11-09 | 株式会社京滨 | Mold and circuit device |
| CN112092292A (en) * | 2020-07-14 | 2020-12-18 | 安徽大卫模具有限公司 | Plastic arc plate injection mold |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5568105B2 (en) | 2014-08-06 |
| JP2013180495A (en) | 2013-09-12 |
| CN103286916B (en) | 2016-05-04 |
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