CN103909624B - Mould enter plastic structure - Google Patents

Mould enter plastic structure Download PDF

Info

Publication number
CN103909624B
CN103909624B CN201310005145.6A CN201310005145A CN103909624B CN 103909624 B CN103909624 B CN 103909624B CN 201310005145 A CN201310005145 A CN 201310005145A CN 103909624 B CN103909624 B CN 103909624B
Authority
CN
China
Prior art keywords
taper pin
cast gate
mould
die
plastic
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.)
Active
Application number
CN201310005145.6A
Other languages
Chinese (zh)
Other versions
CN103909624A (en
Inventor
刘冬飞
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.)
Mitac Precision Technology Kunshan Ltd
Original Assignee
Mitac Precision Technology Kunshan 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 Mitac Precision Technology Kunshan Ltd filed Critical Mitac Precision Technology Kunshan Ltd
Priority to CN201310005145.6A priority Critical patent/CN103909624B/en
Publication of CN103909624A publication Critical patent/CN103909624A/en
Application granted granted Critical
Publication of CN103909624B publication Critical patent/CN103909624B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/27Sprue channels ; Runner channels or runner nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • B29C45/14786Fibrous material or fibre containing material, e.g. fibre mats or fibre reinforced material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/26Moulds
    • B29C45/33Moulds having transversely, e.g. radially, movable mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/40Removing or ejecting moulded articles
    • B29C45/4005Ejector constructions; Ejector operating mechanisms
    • B29C45/401Ejector pin constructions or mountings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/34Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3481Housings or casings incorporating or embedding electric or electronic elements

Abstract

A kind of mould enter plastic structure, it is applied in plastic mould, and described plastic mould has die and die cavity, and the plastic structure that enters of this mould includes: taper pin, and it has taper pin top and taper pin rod, the product after the conflict molding of described taper pin top;Runner, it is located on described die to pass through for molten plastic;Cast gate, it is located on described die and is connected between described runner and die cavity, and this cast gate is provided with a bottom surface and is connected to two sides of this bottom surface, and this cast gate is around described taper pin top.Inventive die enter plastic structure, when adding the product of glass fibre in molding material, what not only solve product enters glue problem, but also has the effect of ejecting product.

Description

Mould enter plastic structure
[technical field]
The present invention relates to a kind of mould structure, what be specifically related to a kind of mould enters plastic structure.
[background technology]
The plastic parts of product can use plastic mould to be shaped, for instance for the plastic parts such as shell of electronic product.Universal due to electronic product, also becomes widely studied problem for the improvement of plastic mould.
When the appearance of forming plastic cement product, attractive in appearance for appearance, side should not be adopted to enter glue and pin mark enters glue;And when if the material of product is add glass fibre in plastics, for instance for polyamide adds glass fibre, after the cooling of product and runner, reason due to product material, product and runner can be hardening, hide with Cornu Bovis seu Bubali and hide into the structure of glue into glue or thimble, all cannot be broken on cast gate top.
In view of this, what be necessary a kind of new mould of exploitation in fact enters plastic structure, with the problem solving cannot be broken on cast gate top after interpolation glass fibre in above-mentioned material.
[summary of the invention]
Therefore, what it is an object of the invention to provide a kind of mould enters plastic structure, and the plastic structure that enters of this mould can solve the problem that in the material of product after interpolation glass fibre, cast gate not easily pushes up disconnected problem.
In order to achieve the above object, the mould of the present invention enter plastic structure, it is applied in plastic mould, and described plastic mould has die and die cavity, and the plastic structure that enters of this mould includes:
Taper pin, it has taper pin top and taper pin rod, the product after the conflict molding of described taper pin top;
Runner, it is located on described die to pass through for molten plastic;
Cast gate, it is located on described die and is connected between described runner and die cavity, and this cast gate is provided with a bottom surface and is connected to two sides of this bottom surface, and this cast gate is around described taper pin top.
It is preferred that the descending transition gradually of the sectional area of described cast gate, so that molten plastic quickly fills with mold cavity forming product.
It is preferred that described cast gate is extended at described taper pin top, to facilitate described taper pin and die breaking molding.
It is preferred that with mould die sinking direction for vertical direction, described taper pin is S1 in the stroke that exits of horizontal direction, and it is S2 that the width of described cast gate is extended at taper pin top, and the width of described cast gate is S3, then S1 > S2+S3, so that taper pin exits cast gate ejecting product completely.
Compared to prior art, inventive die enter plastic structure, when molding material is added the product of glass fibre, after mould matched moulds, taper pin top and die breaking sealing, molten plastic is made to fill die cavity shaped article, after mould die sinking, while taper pin exits back cast gate, also product is upwards ejected, making product separate with cast gate, the plastic structure that enters of this mould not only solves cast gate not easily by the problem that top is disconnected, but also has the effect of ejecting product.
[accompanying drawing explanation]
What Fig. 1 illustrated inventive die enters plastic structure in the schematic diagram of mould matched moulds state.
Fig. 2 illustrates the schematic diagram entering plastic structure one side of inventive die.
Fig. 3 illustrates the schematic diagram entering plastic structure another side of inventive die.
What Fig. 4 illustrated inventive die enters plastic structure in the schematic diagram of mould die opening state.
[detailed description of the invention]
Referring to shown in Fig. 1, Fig. 2 and Fig. 3, what it depicted inventive die respectively enters plastic structure in the schematic diagram entering plastic structure another side of the schematic diagram of mould matched moulds state, the schematic diagram entering plastic structure one side of inventive die and inventive die.
The mould of the present invention enter plastic structure, it is applied in plastic mould, and described plastic mould has die 100 and die cavity (not shown), and in the present embodiment, the plastic structure that enters of this mould includes:
Taper pin 200, it has taper pin top 210 and taper pin rod 220, conflicts the product 300 after molding in described taper pin top 210;
Runner 400, it is located on described die 100 to pass through for molten plastic;
Cast gate 500, it is located on described die 100 and is connected between described runner 400 and die cavity, this cast gate 500 is provided with a bottom surface 510 and is connected to two sides 520 of this bottom surface 510, one side 520 in these two sides 520 connects described runner 400, another side 520 connects described die cavity, and this cast gate 500 is around described taper pin top 210, this cast gate 500 makes molten plastic produce acceleration when entering die cavity, be conducive to quickly filling with die cavity, after molding, the molten plastic in cast gate 500 first condenses, with near closed hollow ring, prevent molten plastic from flowing backwards, cavity pressure is avoided to decline too fast, so that producing shrinkage cavity or depression on product 300.
Wherein, the descending transition gradually of sectional area of described cast gate 500, so that molten plastic quickly fills with mold cavity forming product 300.
Wherein, described cast gate 500 is extended at described taper pin top 210, and to facilitate described taper pin 200 and die 100 breaking molding, in the present embodiment, the width of described cast gate 500 is extended more than 0.5mm in taper pin top 210.
Wherein, with described mould die sinking direction for vertical direction, described taper pin 200 is S1 in the ejection stroke of horizontal direction, it is S2 that the width of described cast gate 500 is extended at taper pin top 210, the width of described cast gate 500 is S3, then S1 > S2+S3, so that taper pin 200 exits cast gate 500 ejecting product 300 completely.
Please jointly consulting shown in Fig. 1, Fig. 2 and Fig. 3, when after mould matched moulds, taper pin top 210 and die 100 breaking sealing, molten plastic flows in cast gate 500 from runner 400, and cast gate 500 makes molten plastic fill rapidly die cavity shaped article 300.
Refer to shown in Fig. 4, when, after mould die sinking, under the effect that ejects of the ejecting mechanism of mould, taper pin 200 moves obliquely, while namely taper pin 200 exits back cast gate 500, also product 300 is upwards ejected, make product 300 and cast gate 500 be easily separated.
Inventive die enter plastic structure, when molding material is added the product 300 of glass fibre, what not only solve product 300 enters glue problem, make cast gate 500 disconnected by top easily, but also there is the effect of ejecting product 300, simple in construction, and the convenient adjustment of cast gate 500 size, be beneficial to the molding of product 300.

Claims (4)

1. mould enter a plastic structure, be applied in plastic mould, described plastic mould has die and die cavity, it is characterised in that the plastic structure that enters of this mould includes:
Taper pin, it has taper pin top and taper pin rod, the product after the conflict molding of described taper pin top;
Runner, it is located on described die to pass through for molten plastic;
Cast gate, it is located on described die and is connected between described runner and die cavity, and this cast gate is provided with a bottom surface and is connected to two sides of this bottom surface, and this cast gate is around described taper pin top.
2. mould according to claim 1 enter plastic structure, it is characterised in that the descending transition gradually of sectional area of described cast gate so that molten plastic quickly fills with mold cavity forming product.
3. mould according to claim 1 enter plastic structure, it is characterised in that described cast gate is extended at described taper pin top, to facilitate described taper pin and die breaking molding.
4. mould according to claim 3 enter plastic structure, it is characterized in that, with mould die sinking direction for vertical direction, described taper pin is S1 in the stroke that exits of horizontal direction, it is S2 that the width of described cast gate is extended at taper pin top, the width of described cast gate is S3, then S1 > S2+S3, so that taper pin exits product and cast gate completely.
CN201310005145.6A 2013-01-08 2013-01-08 Mould enter plastic structure Active CN103909624B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310005145.6A CN103909624B (en) 2013-01-08 2013-01-08 Mould enter plastic structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310005145.6A CN103909624B (en) 2013-01-08 2013-01-08 Mould enter plastic structure

Publications (2)

Publication Number Publication Date
CN103909624A CN103909624A (en) 2014-07-09
CN103909624B true CN103909624B (en) 2016-06-29

Family

ID=51035773

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310005145.6A Active CN103909624B (en) 2013-01-08 2013-01-08 Mould enter plastic structure

Country Status (1)

Country Link
CN (1) CN103909624B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112536986B (en) * 2020-11-04 2022-12-30 贝隆精密科技股份有限公司 Mould structure of cutting water gap in mould
CN114683491A (en) * 2020-12-29 2022-07-01 深圳富联富桂精密工业有限公司 Internal mold and injection mold with same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3423254A1 (en) * 1983-09-29 1986-01-02 EWIKON Entwicklung und Konstruktion GmbH & Co KG, 4900 Herford Hot runner mould for feeding a plastics melt to an injection mould
CN201012529Y (en) * 2007-03-01 2008-01-30 登俊实业股份有限公司 Plastic injection mold having angle pin glue feeding structure
CN201136273Y (en) * 2007-11-23 2008-10-22 佛山市顺德区汉达精密电子科技有限公司 Mould with auxiliary gate inclined pin
CN203092947U (en) * 2013-01-08 2013-07-31 汉达精密电子(昆山)有限公司 Plastic feeding structure of mold

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09272140A (en) * 1996-04-05 1997-10-21 Oki Data:Kk In-mold gate-cutter and in-mold gate-cutting method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3423254A1 (en) * 1983-09-29 1986-01-02 EWIKON Entwicklung und Konstruktion GmbH & Co KG, 4900 Herford Hot runner mould for feeding a plastics melt to an injection mould
CN201012529Y (en) * 2007-03-01 2008-01-30 登俊实业股份有限公司 Plastic injection mold having angle pin glue feeding structure
CN201136273Y (en) * 2007-11-23 2008-10-22 佛山市顺德区汉达精密电子科技有限公司 Mould with auxiliary gate inclined pin
CN203092947U (en) * 2013-01-08 2013-07-31 汉达精密电子(昆山)有限公司 Plastic feeding structure of mold

Also Published As

Publication number Publication date
CN103909624A (en) 2014-07-09

Similar Documents

Publication Publication Date Title
CN204295961U (en) A kind of spot pouring mouth turns sidegated injection mold
CN105500639A (en) Mechanism capable of realizing core pulling in multiple directions and core pulling method
CN103909624B (en) Mould enter plastic structure
CN203092947U (en) Plastic feeding structure of mold
KR200468472Y1 (en) A gate runner with a cross-section of which flow diameter varies from a start point to an end point
CN207841953U (en) Injection mold is hidden into plastic structure
CN208452168U (en) A kind of watch case injection mold
CN104552805A (en) Glue feeding mechanism
CN103395173B (en) A kind of PP large transfusion bottle preform mould entering glue based on three-clove style
CN201761025U (en) Injection mold and hot runner structure thereof
CN105500610A (en) Television set base injection molding mold
CN103802281B (en) Cornu Bovis seu Bubali enters son
CN202293233U (en) Core-pulling mechanism for injection mold with inner reverse fastener
CN204585743U (en) Mould
CN204076672U (en) A kind of television stand injection forming mold
CN207607061U (en) A kind of type concealed glue inlet structure
CN103448216A (en) Dynamic gate-based injection molding method
CN205853254U (en) A kind of pressurize injection moulding apparatus without cast gate for injection mold
CN206085501U (en) Be provided with injection mold of air valve
CN102896712A (en) Plastic die
CN205572910U (en) Interior ox horn advances glued structure
CN201913768U (en) Mould structure of integral gate
CN204451063U (en) Box cover die in single valve pin trumpet assembly two-fold
CN206066839U (en) Pulling block after mould
CN206780867U (en) A kind of mould core structure of automobile injection mold

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant