CN201169034Y - Cold runner rubber injecting molding die - Google Patents

Cold runner rubber injecting molding die Download PDF

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Publication number
CN201169034Y
CN201169034Y CNU2008200189329U CN200820018932U CN201169034Y CN 201169034 Y CN201169034 Y CN 201169034Y CN U2008200189329 U CNU2008200189329 U CN U2008200189329U CN 200820018932 U CN200820018932 U CN 200820018932U CN 201169034 Y CN201169034 Y CN 201169034Y
Authority
CN
China
Prior art keywords
fluid channel
nozzle
guidance tape
groove
cold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008200189329U
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Chinese (zh)
Inventor
张惠敏
邱龙辉
张慧英
孙丁喜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao University of Science and Technology
Original Assignee
Qingdao University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao University of Science and Technology filed Critical Qingdao University of Science and Technology
Priority to CNU2008200189329U priority Critical patent/CN201169034Y/en
Application granted granted Critical
Publication of CN201169034Y publication Critical patent/CN201169034Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a cold fluid channel rubber injection molding machine which belongs to the rubber processing and manufacturing field. A heating plate is arranged on a stationary mould, a thermal insulation board is arranged between the heating plate and a cold fluid channel plate, a combination type nozzle is arranged under the cold fluid channel plate, and an air clearance is arranged between the combination type nozzle and the heating plate; the cold fluid channel plate is composed of a top fluid channel plate and a low fluid channel plate, and a first layer fluid channel is formed by the groove under the top fluid channel plate and the groove above the low fluid channel plate; more than two grooves distributed in the radiation shape are arranged at the upper end surface of the combination type nozzle, and a second fluid channel is formed by the two grooves distributed in the radiation shape and the groove corresponding to the lower surface of the cold fluid channel plate; more than two step holes are arranged on the nozzle body, and floatable nozzles is arranged in the step holes; the cold fluid channel plate is provided with a heat conducting hole for medium circulation; the combination type nozzle is provided with a longitudinal groove used for circulating the heat-conducting medium, the longitudinal groove is communicated with the heat conducting hole of the cold fluid channel plate, and the cold fluid channel rubber injection molding machine has the advantages that the structural principle is simple, the product quality is good, the production efficiency is high, and the raw material and the labor are saved.

Description

Cold runner injection molding of rubber mould
Technical field:
The utility model relates to a kind of injection molding of rubber mould that comprises dynamic model and cover half in the rubber and plastic processing and manufacturing field, particularly a kind of cold runner injection molding of rubber mould.
Background technology:
Present injection molding of rubber method is to be injected into and to carry out sulfidization molding in the mold cavity plastifying sizing material, so is provided with running gate system in the mould.Plastified sizing material and be injected in the mold cavity by running gate system, and then sulfidization molding.The General Purpose Rubber injecting molding die is that the vulcanizate after the die sinking in the running gate system becomes waste material and thrown away with the sizing material in the running gate system and the sizing material in die cavity baking together during sulfidization molding.Capital of every injection produces some waste materials, the waste material amount that per injection produced is relevant with the die cavity number, monotype cavity mould for the big product of moulding, it is less that the waste material amount that produces accounts for the ratio of product materials amount, but for the multi-imprssion mould tool of the little product of moulding, the waste material amount of generation accounts for the large percentage of product materials amount.Especially moulding needs the high accuracy small piece of many cast gate injections, and except that being provided with the runner by the die cavity number, each die cavity also needs to set up runner in addition again by the cast gate number, so the runner number increases.The result is that the waste material that every injection is once produced is multiplied, and has caused raw-material very big waste.Except that causing waste of raw materials, the sizing material in the runner has also consumed sizable a part of heat energy in high temperature vulcanized process.In addition, get waste material and need manually finish, labor strength is big.Waste material is got in die sinking needs bigger opening stroke and more die sinking time, has therefore also caused the prolongation of molding cycle, has influenced production efficiency.
Summary of the invention:
The purpose of this utility model is to overcome the shortcoming that exists in the prior art, design provides the cold runner injection molding of rubber mould of a kind of a multi-cavity mold, the many cast gates in a chamber, be used for high yield, the small-sized rubber part of high-quality moulding, to solve the defective that existing General Purpose Rubber injecting molding die exists.
To achieve these goals, but the cold runner injection molding of rubber mould that the utility model relates to comprises dynamic model, die cavity, cover half, thermocouple, electric heater, heating plate, nozzle overcoat, longitudinal groove, nozzle body, stepped hole floating nozzle, thermal hole, thermal insulation board, upper reaches guidance tape, dirty guidance tape, groove, straight hole and the air gap, heating plate is installed above the cover half, thermal insulation board is installed between heating plate and the cold flow guidance tape, combined nozzle is installed in below the cold flow guidance tape, is provided with the air gap between combined nozzle and the heating plate; The cold flow guidance tape is made up of upper reaches guidance tape and dirty guidance tape, and the groove on plane constitutes the ground floor runner on the groove of upper reaches guidance tape lower plane and the dirty guidance tape; The upper surface of combined nozzle has the groove that distributes radially more than two, and the groove corresponding with cold flow guidance tape lower plane constitutes second layer runner; But combined nozzle comprises nozzle body, nozzle overcoat and floating nozzle, and nozzle body is provided with plural stepped hole, but a floating nozzle is installed in each stepped hole; The cold flow guidance tape is provided with the thermal hole of circulation medium; Combined nozzle is provided with the longitudinal groove of circulation heat-conducting medium, and longitudinal groove communicates with cold flow guidance tape thermal hole.
The utility model carries out temperature control to the sizing material in die cavity and the runner respectively by heating plate and cold flow guidance tape.Between curing time, heating plate carries out the high temperature heating to the sizing material in the die cavity, make its sulfidization molding, meanwhile, the cold flow guidance tape is controlled at the sizing material in the runner below the curing temperature, and it is remained under the flowable state, only takes out product during die sinking, sizing material in the runner still is retained in the runner, and these sizing materials are injected into die cavity and are sulfided into product when injecting next time.No waste material produces in whole forming process, and the heat energy that sizing material consumes in the runner also seldom.Therefore the utility model compared with prior art not only can carry out high yield, the high quality of production of little product, but also can economize in raw materials and the energy, enhances productivity, and alleviates labor strength.
Description of drawings:
Fig. 1 is a structural principle schematic diagram of the present utility model.
Fig. 2 is a local structure for amplifying principle schematic of the present utility model.
Fig. 3 is the plan structure principle schematic of combined nozzle of the present utility model.
The specific embodiment:
Also the utility model is described in further detail in conjunction with the accompanying drawings below by embodiment.
Embodiment:
The agent structure of present embodiment comprises dynamic model 1, die cavity 2, cover half 3, thermocouple 4, electric heater 5, heating plate 6, nozzle overcoat 7, longitudinal groove 8, nozzle body 9, stepped hole 10, but floating nozzle 11, thermal hole 12 and 14, thermal insulation board 13, upper reaches guidance tape 15, dirty guidance tape 16, groove 17,18,20 and 21, straight hole 19 and the air gap 22, dynamic model 1 and cover half 3 constitute the die cavity part 2 of cold runner injection molding of rubber moulds, heating plate 6 is installed in above the cover half, be provided with a plurality of through holes in the heating plate, electric heater 5 is housed in the hole, realization is to the heating of mould molding part, thermocouple 4 is equipped with in the heating plate center, thermocouple links to each other with the temperature control instrument, is used for the thermometric and the temperature control of heating plate.Thermal insulation board 13 is installed between heating plate and the cold flow guidance tape, transmits to the cold flow guidance tape with the heat that stops heating plate 6.
The cold flow guidance tape is made up of upper reaches guidance tape 15 and dirty guidance tape 16, and upper reaches guidance tape and dirty guidance tape are screwed together, and locate with pin.Have groove 17 on the lower plane of upper reaches guidance tape, have the groove 18 corresponding with groove 17 on the last plane of dirty guidance tape, groove 17 and 18 constitutes the ground floor runners.Upper reaches guidance tape and dirty guidance tape are respectively equipped with thermal hole 12 and 14, and thermal hole be communicated with to distribute for series connection, and are that symmetry axis is divided into two groups of passages with cold flow guidance tape center line.By the temperature control of temperature-controlling system to circulation medium in the thermal hole, sizing material in the runner is controlled at below the curing temperature, it is remained under the flowable state.
Combined nozzle is screwed below the cold flow guidance tape, and positions with pin; The upper surface of combined nozzle has groove 21, and the groove 20 corresponding with cold flow guidance tape lower plane constitutes second layer runner, and groove 21 distributes radially, as shown in Figure 3; Combined nozzle lumps together four nozzle sets of a die cavity, makes its compact conformation, to solve the little problem in little product multi-point injection space; But combined nozzle is made up of nozzle overcoat 7, nozzle body 9 and floating nozzle 11; Nozzle body 9 is provided with four stepped holes 10, but a floating nozzle 11 is installed in each stepped hole, but floating nozzle 11 be a matched in clearance with stepped hole 10, under the effect of material pressure, but floating nozzle 11 can remain with cover half 3 and contact, with the leakage of prevention sizing material; Combined nozzle is provided with the longitudinal groove 8 that series connection is communicated with, and is used to feed heat-conducting medium, and the sizing material temperature in the control nozzle body 9 remains under the flowable state it; Longitudinal groove 8 communicates with the thermal hole 14 of cold flow guidance tape by the straight hole 19 of nozzle overcoat 7; Between the upper surface of cold flow guidance tape lower plane and nozzle overcoat 7, sealing ring is installed, reveals to prevent heat-conducting medium.
Between combined nozzle and the heating plate 6 by the air gap 22 thermal insulation.

Claims (3)

1. cold runner injection molding of rubber mould, comprise fixed half and moving half, it is characterized in that being installed with above the cover half heating plate, thermal insulation board is installed between heating plate and the cold flow guidance tape, combined nozzle is installed in below the cold flow guidance tape, is provided with the air gap between combined nozzle and the heating plate; The cold flow guidance tape is made up of upper reaches guidance tape and dirty guidance tape, and the groove on plane constitutes the ground floor runner on the groove of upper reaches guidance tape lower plane and the dirty guidance tape; The upper surface of combined nozzle has the groove that distributes radially more than two, and the groove corresponding with cold flow guidance tape lower plane constitutes second layer runner; But combined nozzle comprises nozzle body, nozzle overcoat and floating nozzle, and nozzle body is provided with stepped hole, but a floating nozzle is installed in each stepped hole.
2. cold runner injection molding of rubber mould according to claim 1 is characterized in that the cold flow guidance tape is provided with the thermal hole of circulation medium.
3. cold runner injection molding of rubber mould according to claim 1 is characterized in that combined nozzle is provided with the longitudinal groove of circulation heat-conducting medium, and longitudinal groove communicates with cold flow guidance tape thermal hole.
CNU2008200189329U 2008-03-11 2008-03-11 Cold runner rubber injecting molding die Expired - Fee Related CN201169034Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200189329U CN201169034Y (en) 2008-03-11 2008-03-11 Cold runner rubber injecting molding die

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200189329U CN201169034Y (en) 2008-03-11 2008-03-11 Cold runner rubber injecting molding die

Publications (1)

Publication Number Publication Date
CN201169034Y true CN201169034Y (en) 2008-12-24

Family

ID=40208087

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200189329U Expired - Fee Related CN201169034Y (en) 2008-03-11 2008-03-11 Cold runner rubber injecting molding die

Country Status (1)

Country Link
CN (1) CN201169034Y (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102059780A (en) * 2009-11-14 2011-05-18 上海骆氏减震件有限公司 Rubber cold runner system
CN102173036A (en) * 2011-03-16 2011-09-07 苏州腾行精密模具有限公司 Cold-runner rubber injection molding mold structure
CN101633229B (en) * 2009-08-14 2011-11-02 创乐电子实业(惠州)有限公司 Cold runner silicon rubber forming die
CN102229227A (en) * 2011-06-15 2011-11-02 深圳创维-Rgb电子有限公司 Multilayer runner spreader plate with insert, hot runner system and insert manufacture method
CN102267220A (en) * 2011-08-04 2011-12-07 苏州腾行精密模具有限公司 Runner structure for injection molding of rubber tube
CN102358001A (en) * 2011-08-04 2012-02-22 苏州腾行精密模具有限公司 One-mould multi-cavity injection-molding mould
CN102357996A (en) * 2011-08-04 2012-02-22 苏州腾行精密模具有限公司 Flow channel structure used for multi-cavity
CN102490317A (en) * 2011-11-29 2012-06-13 安徽奥丰汽车配件有限公司 Novel combined mould
CN102632589A (en) * 2011-02-15 2012-08-15 苏州腾行精密模具有限公司 Rubber injection moulding die
CN102717488A (en) * 2011-04-12 2012-10-10 苏州腾行精密模具有限公司 Mold runner structure
CN103317676A (en) * 2013-06-23 2013-09-25 苏州腾行精密模具有限公司 Cold runner injection mold
CN103587053A (en) * 2012-08-14 2014-02-19 苏州汉扬精密电子有限公司 Oblique point plastic feeding channel structure
CN104260285A (en) * 2014-09-25 2015-01-07 昆山伯建精密模具有限公司 Cold-runner mold
CN105729735A (en) * 2016-04-11 2016-07-06 东莞市比特硅橡胶模具有限公司 Oil pressure injection mold

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101633229B (en) * 2009-08-14 2011-11-02 创乐电子实业(惠州)有限公司 Cold runner silicon rubber forming die
CN102059780A (en) * 2009-11-14 2011-05-18 上海骆氏减震件有限公司 Rubber cold runner system
CN102059780B (en) * 2009-11-14 2013-05-08 上海骆氏减震件有限公司 Rubber cold runner system
CN102632589A (en) * 2011-02-15 2012-08-15 苏州腾行精密模具有限公司 Rubber injection moulding die
CN102173036A (en) * 2011-03-16 2011-09-07 苏州腾行精密模具有限公司 Cold-runner rubber injection molding mold structure
CN102717488A (en) * 2011-04-12 2012-10-10 苏州腾行精密模具有限公司 Mold runner structure
CN102229227B (en) * 2011-06-15 2014-08-27 深圳创维-Rgb电子有限公司 Multilayer runner spreader plate with insert, hot runner system and insert manufacture method
CN102229227A (en) * 2011-06-15 2011-11-02 深圳创维-Rgb电子有限公司 Multilayer runner spreader plate with insert, hot runner system and insert manufacture method
CN102358001A (en) * 2011-08-04 2012-02-22 苏州腾行精密模具有限公司 One-mould multi-cavity injection-molding mould
CN102357996A (en) * 2011-08-04 2012-02-22 苏州腾行精密模具有限公司 Flow channel structure used for multi-cavity
CN102267220A (en) * 2011-08-04 2011-12-07 苏州腾行精密模具有限公司 Runner structure for injection molding of rubber tube
CN102490317A (en) * 2011-11-29 2012-06-13 安徽奥丰汽车配件有限公司 Novel combined mould
CN103587053A (en) * 2012-08-14 2014-02-19 苏州汉扬精密电子有限公司 Oblique point plastic feeding channel structure
CN103317676A (en) * 2013-06-23 2013-09-25 苏州腾行精密模具有限公司 Cold runner injection mold
CN104260285A (en) * 2014-09-25 2015-01-07 昆山伯建精密模具有限公司 Cold-runner mold
CN105729735A (en) * 2016-04-11 2016-07-06 东莞市比特硅橡胶模具有限公司 Oil pressure injection mold

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
EE01 Entry into force of recordation of patent licensing contract

Assignee: Zibo Dongda Medical Rubber & Plastic Co., Ltd.

Assignor: Qingdao University of Science & Technology

Contract record no.: 2010370000233

Denomination of utility model: Cold runner rubber injecting molding die

Granted publication date: 20081224

License type: Exclusive License

Record date: 20100512

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081224

C17 Cessation of patent right