CN102267219A - Injection mold with X-shaped runner - Google Patents

Injection mold with X-shaped runner Download PDF

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Publication number
CN102267219A
CN102267219A CN2011102222440A CN201110222244A CN102267219A CN 102267219 A CN102267219 A CN 102267219A CN 2011102222440 A CN2011102222440 A CN 2011102222440A CN 201110222244 A CN201110222244 A CN 201110222244A CN 102267219 A CN102267219 A CN 102267219A
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CN
China
Prior art keywords
mold
runner
injection mold
plate
die cavity
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.)
Pending
Application number
CN2011102222440A
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Chinese (zh)
Inventor
那仓孝行
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.)
SUZHOU TECHWELL PRECISION MOLD CO Ltd
Original Assignee
SUZHOU TECHWELL PRECISION MOLD CO Ltd
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 SUZHOU TECHWELL PRECISION MOLD CO Ltd filed Critical SUZHOU TECHWELL PRECISION MOLD CO Ltd
Priority to CN2011102222440A priority Critical patent/CN102267219A/en
Publication of CN102267219A publication Critical patent/CN102267219A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an injection mold with an X-shaped runner, and relates to the technical field of injection molds. For solving the problem that the form of a shunt mold cavity in the conventional injection mold has advantages and disadvantages, the mold cavity of the injection mold consists of an upper mold and a lower mold, wherein the upper mold is formed by sequentially and fixedly connecting a panel, a runner plate and an upper profile plate from top to bottom; the lower mold is formed by sequentially and fixedly connecting a lower profile plate, a lower mold heat insulation plate, a lower mold shim plate and a lower mold bottom plate from top to bottom; and the upper profile plate is provided with at least one X-shaped runner respectively communicated with a sprue of the mold cavity and a feeding hole of the injection mold. The injection mold is particularly suitable for producing one-mold multi-cavity injection molding products.

Description

A kind of injection mold with X-shaped runner
Technical field
This patent relates to the injection mold technical field, relates in particular to a kind of injection mold with X-shaped runner.
Background technology
Injection moulding is one of plastics or the high efficiency production method of rubber, also is a kind of important method of plastics and rubber molding, mainly is applicable to the shaping of thermoplastic.Its basic structure is classified as follows according to the effect difference: one, running gate system, and be about to plastics and guide the passage of die cavity into by the injector nozzle, it is by sprue, runner, compositions such as ingate and cold slug well; Two, forming part, it is the various parts that directly constitute working of plastics shape and size, is made of core, die cavity, curved lever and inserting etc.; Three, constitutional detail plays installation, guiding, effects such as mechanism action and temperature adjustment in mould.
Wherein, runner be molten plastic from the ejaculator nozzle to die cavity must channel.Flow passage system is made up of sprue, runner and die cavity charging aperture.Sprue is meant from part that the ejaculator nozzle contacts with the mould sprue bush runner till the runner.This part is that molten plastic enters the part of flowing through at first behind the mould.Runner is the transitional region between sprue and cast gate, can make the flow direction of molten plastic obtain mild conversion.The arrangement form of flow passage system is divided into balanced type and unbalanced.Balanced type is meant the runner from sprue on the sprue to each die cavity and the sectional dimension and the equal correspondent equal of length of die cavity charging aperture, can directly reach the purpose of the even charging of each die cavity.Unbalanced is meant that the runner from the sprue sprue to each die cavity and the sectional dimension and the length of die cavity charging aperture are not whole correspondent equals, needs the die cavity charging aperture is designed to different size, to reach the purpose of the balanced charging of each die cavity filling simultaneously.
In the existing injection mold, the die cavity configuration of runner is linear, H shape and circular arrangement.From flow channel length, it is the shortest that the linear runner is arranged the path, be easy to the fusion sizing material and inject die cavity fast, but its distribution on mould is even inadequately; And from Runner Balance, H shapes circular and four chambeies are arranged better, have the function of uniform distribution plastics to each die cavity simultaneously for multi-cavity mold, can reach the purpose of the balanced charging of die cavity filling simultaneously, but its path are longer, and the sizing material temperature is difficult for controlling.As seen, every kind of flow channel shape is all both advantageous and disadvantageous.
Patent content
At the both advantageous and disadvantageous deficiency of runner cavity version in the existing injection mold.The purpose of this patent provides and a kind ofly can improve the injection mold with X-shaped runner that flow velocity can shorten path again.
The technical scheme that its technical problem that solves this patent adopts is: constitute die cavity by the upper die and lower die that match, described patrix forms by panel, runner plate and cope match plate are affixed successively from top to bottom, described counterdie is by down template, counterdie thermal insulation board, counterdie backing plate and following baffle plate is affixed successively from top to bottom forms, described cope match plate be provided with at least one respectively with the X-shaped runner of the feeding inlet of the cast gate of described die cavity and described injection mold.
On the described X-shaped runner by the equal in length of described charging aperture to the path of the described cast gate that is positioned at described X-shaped flow field end, the equal rounding off of the inwall of described X-shaped runner.
The vertical sectional shape of described X-shaped runner is circular, semicircle, trapezoidal or U-shaped.
Described cope match plate and the described edge that is positioned at described die cavity of template down are equipped with the flash limit of cross section semicircular in shape.
Further, it also comprises the liftout attachment of the shaping plastic that is used for ejecting described die cavity.
The beneficial effect of this patent is: the X-shaped runner in this patent mould, and sprue can reach the purpose of the even charging of each die cavity to the equal correspondent equal of path of the runner of each die cavity on the sprue; In addition, compare circle or H shape runner, in the X-shaped runner of inwall rounding off, the path that sizing material flows shortens, and the glue flow resistance diminishes, and more help the fusion sizing material and fill quickly and evenly, and this mould structure is simple, and is easy to manufacture.
Description of drawings
Below in conjunction with drawings and Examples this patent is described further;
Fig. 1 is the structural representation of mould among the embodiment;
Fig. 2 is that the A-A of Fig. 1 is to cutaway view;
Fig. 3 is the structural representation of X-shaped runner among the embodiment;
The number in the figure explanation:
1-panel 2-runner plate 3-first cope match plate
Second time template of first time template 6-of the 4-second cope match plate 5-
Baffle plate under the 7-counterdie thermal insulation board 8-counterdie backing plate 9-
31-X shape runner 32-running channel 33-charging aperture
The specific embodiment
In conjunction with Fig. 1 to Fig. 3 a kind of injection mold with X-shaped runner of this patent is described, this mould is a mould two cavity configurations, is used for producing the closed hoop sealing ring of automobile.It comprises the upper die and lower die that match, and patrix forms by panel 1, runner plate 2 and cope match plate assembly are affixed successively from top to bottom, and counterdie forms by mo(u)ld bottom half board component, counterdie thermal insulation board 7, counterdie backing plate 8 and following baffle plate 9 are affixed successively from top to bottom.For ease of the manufacturing of mould and the demoulding of goods, the cope match plate assembly is made up of first cope match plate 3 and second cope match plate 4 of suit, and the mo(u)ld bottom half board component that matches with it is made up of first time template 5 and second time template 6 of suit.Cope match plate assembly and mo(u)ld bottom half board component constitute the die cavity of sealing ring jointly, are the mould of many die joints structure.
X-shaped runner in this patent mould is the balanced arrangement mode.Communicate with charging aperture 33 on the runner plate 2 by running channel 32 at 31, two " X " shapes of two " X " shape runners runner 31 that symmetry is set on first cope match plate 3 and communicates.Running channel 32 is the taper type of downward flaring, and its tapering is 5 °.The vertical sectional shape of " X " shape runner 31 is circular, semicircle, trapezoidal or U-shaped." X " shape runner inner wall rounding off, and by charging aperture 33 to identical length of die cavity charging aperture etc., can make fused materials flow velocity uniform and stable, make the even charging of each die cavity, product property can be consistent.The edge that is positioned at die cavity of first cope match plate 3, second cope match plate 4, first time template 5 and second time template 6 is equipped with the flash limit of cross section semicircular in shape, stops flash that goods are stuck on the mould, influences the demoulding.
In addition, also be provided with liftout attachment in the mould, constitute by top board and the elastic mechanism that is arranged at the top board bottom, when die joint is opened, heat-resisting brute spring generation relative motion in the elastic mechanism ejects the waste material in sealing ring goods and the runner by top board and to finish the demoulding.
Those skilled in the art will recognize that; the above-mentioned specific embodiment is exemplary; be in order to make those skilled in the art can better understand this patent content; should not be construed as is restriction to this patent protection domain; change or modify so long as disclose spiritual any being equal to of being done, all fall into this patent protection domain according to this patent.

Claims (5)

1. injection mold with X-shaped runner, constitute die cavity by the upper die and lower die that match, described patrix forms by panel, runner plate and cope match plate are affixed successively from top to bottom, described counterdie is by down template, counterdie thermal insulation board, counterdie backing plate and following baffle plate is affixed successively from top to bottom forms, and it is characterized in that: described cope match plate be provided with at least one respectively with the X-shaped runner of the feeding inlet of the cast gate of described die cavity and described injection mold.
2. injection mold according to claim 1 is characterized in that: on the described X-shaped runner by the equal in length of described charging aperture to the path of the described cast gate that is positioned at described X-shaped flow field end, the equal rounding off of the inwall of described X-shaped runner.
3. injection mold according to claim 1 and 2 is characterized in that: the vertical sectional shape of described X-shaped runner is circular, semicircle, trapezoidal or U-shaped.
4. injection mold according to claim 1 is characterized in that: described cope match plate and the described edge that is positioned at described die cavity of template down are equipped with the flash limit of cross section semicircular in shape.
5. injection mold according to claim 1 is characterized in that: it also comprises the liftout attachment of the shaping plastic that is used for ejecting described die cavity.
CN2011102222440A 2011-08-04 2011-08-04 Injection mold with X-shaped runner Pending CN102267219A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011102222440A CN102267219A (en) 2011-08-04 2011-08-04 Injection mold with X-shaped runner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011102222440A CN102267219A (en) 2011-08-04 2011-08-04 Injection mold with X-shaped runner

Publications (1)

Publication Number Publication Date
CN102267219A true CN102267219A (en) 2011-12-07

Family

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Family Applications (1)

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CN2011102222440A Pending CN102267219A (en) 2011-08-04 2011-08-04 Injection mold with X-shaped runner

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CN (1) CN102267219A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753769A (en) * 2013-12-25 2014-04-30 广西科技大学 Mold pouring system
CN104369322A (en) * 2014-11-17 2015-02-25 如皋市易达电子有限责任公司 Injection molding mold of chip-sticking and rectifying bridge
CN106021745A (en) * 2016-05-25 2016-10-12 江苏铂英特电子科技有限公司 Analysis method for shape of car connector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3794107B2 (en) * 1997-05-09 2006-07-05 ユニマテック株式会社 Mold for molding resin-coated steel balls
CN201077142Y (en) * 2007-06-26 2008-06-25 台湾奈普光电科技股份有限公司 Forming device of light conducting plate
CN101486244A (en) * 2009-03-04 2009-07-22 亚光耐普罗精密注塑(天津)有限公司 Corner type double-shot molding mould with heat spout hot runner system
CN201538008U (en) * 2009-09-29 2010-08-04 厦门市驰杰模具工业有限公司 Rubber mold cold runner structure
CN202137906U (en) * 2011-08-04 2012-02-08 苏州腾行精密模具有限公司 Injection mold provided with X-shaped runner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3794107B2 (en) * 1997-05-09 2006-07-05 ユニマテック株式会社 Mold for molding resin-coated steel balls
CN201077142Y (en) * 2007-06-26 2008-06-25 台湾奈普光电科技股份有限公司 Forming device of light conducting plate
CN101486244A (en) * 2009-03-04 2009-07-22 亚光耐普罗精密注塑(天津)有限公司 Corner type double-shot molding mould with heat spout hot runner system
CN201538008U (en) * 2009-09-29 2010-08-04 厦门市驰杰模具工业有限公司 Rubber mold cold runner structure
CN202137906U (en) * 2011-08-04 2012-02-08 苏州腾行精密模具有限公司 Injection mold provided with X-shaped runner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103753769A (en) * 2013-12-25 2014-04-30 广西科技大学 Mold pouring system
CN104369322A (en) * 2014-11-17 2015-02-25 如皋市易达电子有限责任公司 Injection molding mold of chip-sticking and rectifying bridge
CN106021745A (en) * 2016-05-25 2016-10-12 江苏铂英特电子科技有限公司 Analysis method for shape of car connector

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SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20111207

C02 Deemed withdrawal of patent application after publication (patent law 2001)