CN202293233U - Core-pulling mechanism for injection mold with inner reverse fastener - Google Patents

Core-pulling mechanism for injection mold with inner reverse fastener Download PDF

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Publication number
CN202293233U
CN202293233U CN2011203947715U CN201120394771U CN202293233U CN 202293233 U CN202293233 U CN 202293233U CN 2011203947715 U CN2011203947715 U CN 2011203947715U CN 201120394771 U CN201120394771 U CN 201120394771U CN 202293233 U CN202293233 U CN 202293233U
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CN
China
Prior art keywords
pulling
push rod
core
sliders
slide
Prior art date
Application number
CN2011203947715U
Other languages
Chinese (zh)
Inventor
王志浩
Original Assignee
厦门市质子工贸有限公司
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 厦门市质子工贸有限公司 filed Critical 厦门市质子工贸有限公司
Priority to CN2011203947715U priority Critical patent/CN202293233U/en
Application granted granted Critical
Publication of CN202293233U publication Critical patent/CN202293233U/en

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Abstract

The utility model discloses a core-pulling mechanism for an injection mold with an inner reverse fastener. The core-pulling mechanism comprises a top block, ejector rods, inner sliders and a push rod; the upper part of the top block serves as a reverse fastener surface of a cavity, and the lower end of the top block is fixedly connected to the tops of the ejector rods; two inner sliders are symmetrically arranged on two side faces of the top block; two side faces of the upper part of the push rod are inclined inwards and upwards, and are sharp-angled; and the two inner sliders are in sliding connection with the two side faces of the push rod through inner inclined planes on the inner sliders. A slider type core pulling mode is adopted; after injection moulding, the inner sliders can slide relative to the push rod and retract inwards, so that the inner sliders are separated from the inner reverse fastener of a plastic product and can be separated from a large inner reverse fastener, the inner surface does not have any trace, and the reliability is high; and therefore, the core-pulling mechanism is an ideal inner core-pulling device for a plastic mold.

Description

The injection mold core-pulling mechanism of inboard back-off
Technical field
The utility model relates to a kind of injection mold, particularly relates to a kind of injection mold core-pulling mechanism of inboard back-off.
Background technology
Plastic injection mould is an instrument of producing plastic products, uses very extensive.In plastic products injection moulding, because there is inboard back-off the inside of some plastic products, the mode of side core-pulling in plastic part need be taked after moulding could break away from plastic part and come from mold cores.The mould structure of the interior side core-pulling of commonly using is mostly comparatively complicated.
The utility model content
The purpose of the utility model is to provide the injection mold core-pulling mechanism of the high inboard back-off of a kind of reliability.
For realizing above-mentioned purpose, the technical solution of the utility model is:
The utility model is a kind of injection mold core-pulling mechanism of inboard back-off, and it comprises jacking block, push rod, inner slide, push rod; The top of described jacking block is as a back-off face of die cavity, and the lower end of jacking block is fixed in the top of push rod; Described inner slide has two, is symmetricly set on the two sides of jacking block; The two sides on the top of described push rod inwardly, be inclined upwardly, be tip-angled shape, and two inner slides slip respectively on the two sides of push rod through the inboard inclined-plane on it.
After adopting such scheme, be that slide block type is loosed core because the utility model adopts, after the mold injects moulding; Inner slide push rod relatively slides, and inwardly shrinks, and makes inner slide break away from the inboard back-off of plastic products; Can deviate from bigger inboard back-off; Guaranteeing that inner surface does not have vestige, have very high reliability, is a kind of very desirable mould of plastics internal core withdrawing device therefore.
Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.
Description of drawings
Fig. 1 is the axonometric drawing of the utility model;
Fig. 2 is the inside sliding mode figure of the utility model inner slide;
Fig. 3 is the state diagram that the utility model ejects plastic products;
Fig. 4 is that the utility model is installed in the cutaway view in the injection mold.
The specific embodiment
As shown in Figure 3, the utility model is a kind of injection mold core-pulling mechanism of inboard back-off, and it comprises jacking block 1, push rod 2, inner slide 3, push rod 4.
The top of described jacking block 1 is stretched in the die cavity as a back-off face of die cavity, and the lower end of jacking block 1 is fixed in the top of push rod 2; Described inner slide 3 is divided into left and right two, that is, left inner slide 31, right inner slide 32 are symmetricly set on the two sides of jacking block 1; The two sides on the top 41 of described push rod 4 inwardly, be inclined upwardly, be tip-angled shape, and left inner slide 31 slips respectively on the two sides on push rod 4 tops 41 through the inboard inclined-plane on it with right inner slide 32.
As shown in Figure 4, the utility model 10 is installed between the cover half 20 and cover half 30 of injection mold.
The course of work of the utility model:
1, as shown in Figure 1, the matched moulds state, after the injection mo(u)lding, plastic products 40 snap onto on the inner slide 3;
2, as shown in Figure 2, during die sinking, left inner slide 31 inwardly slides with right inner slide 32, breaks away from the inboard back-off of plastic products 40 gradually;
3, as shown in Figure 3, continue die sinking, jacking block 1 is deviate from plastic products 40 from inner slide 3 under the ejection of push rod 2 fully.
The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented with this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.

Claims (1)

1. the injection mold core-pulling mechanism of an inboard back-off, it is characterized in that: it comprises jacking block, push rod, inner slide, push rod; The top of described jacking block is as a back-off face of die cavity, and the lower end of jacking block is fixed in the top of push rod; Described inner slide has two, is symmetricly set on the two sides of jacking block; The two sides on the top of described push rod inwardly, be inclined upwardly, be tip-angled shape, and two inner slides slip respectively on the two sides of push rod through the inboard inclined-plane on it.
CN2011203947715U 2011-10-17 2011-10-17 Core-pulling mechanism for injection mold with inner reverse fastener CN202293233U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011203947715U CN202293233U (en) 2011-10-17 2011-10-17 Core-pulling mechanism for injection mold with inner reverse fastener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011203947715U CN202293233U (en) 2011-10-17 2011-10-17 Core-pulling mechanism for injection mold with inner reverse fastener

Publications (1)

Publication Number Publication Date
CN202293233U true CN202293233U (en) 2012-07-04

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011203947715U CN202293233U (en) 2011-10-17 2011-10-17 Core-pulling mechanism for injection mold with inner reverse fastener

Country Status (1)

Country Link
CN (1) CN202293233U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104175500A (en) * 2014-07-31 2014-12-03 东莞汇美模具制造有限公司 Internal-pulling type side core-pulling mechanism
CN105415611A (en) * 2015-12-31 2016-03-23 安徽中电兴发与鑫龙科技股份有限公司 Circuit breaker transparent cover injection mold ejection mechanism
US10248170B2 (en) 2017-01-12 2019-04-02 Microsoft Technology Licensing, Llc Very low draft housings and methods of manufacturing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104175500A (en) * 2014-07-31 2014-12-03 东莞汇美模具制造有限公司 Internal-pulling type side core-pulling mechanism
CN105415611A (en) * 2015-12-31 2016-03-23 安徽中电兴发与鑫龙科技股份有限公司 Circuit breaker transparent cover injection mold ejection mechanism
US10248170B2 (en) 2017-01-12 2019-04-02 Microsoft Technology Licensing, Llc Very low draft housings and methods of manufacturing

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120704

Termination date: 20141017

EXPY Termination of patent right or utility model