CN204725733U - A kind of secondary ejection mechanism for mold - Google Patents

A kind of secondary ejection mechanism for mold Download PDF

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Publication number
CN204725733U
CN204725733U CN201520257446.2U CN201520257446U CN204725733U CN 204725733 U CN204725733 U CN 204725733U CN 201520257446 U CN201520257446 U CN 201520257446U CN 204725733 U CN204725733 U CN 204725733U
Authority
CN
China
Prior art keywords
elastic force
fixed head
mold
spring
masthead
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
CN201520257446.2U
Other languages
Chinese (zh)
Inventor
龚平
席刚
郭芝忠
林岗
皮红
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.)
Polygon (chengdu) Precision Mold & Plastic Co Ltd
Original Assignee
Polygon (chengdu) Precision Mold & Plastic 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 Polygon (chengdu) Precision Mold & Plastic Co Ltd filed Critical Polygon (chengdu) Precision Mold & Plastic Co Ltd
Priority to CN201520257446.2U priority Critical patent/CN204725733U/en
Application granted granted Critical
Publication of CN204725733U publication Critical patent/CN204725733U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of secondary ejection mechanism for mold, comprise rear mold main body, the bottom of rear mold main body is provided with thimble fixed head, and the top of thimble fixed head is provided with material masthead needle plate corresponding thereto and die backing plate successively; Be provided with the first elastic force apparatus between thimble fixed head and material masthead needle plate, between material masthead needle plate and die backing plate, be provided with the second elastic force apparatus.The utility model structure is simple, easy to operate, can realize Double-ejection operation when not increasing ejector retainner plate, can effectively prevent from producing the situation of pulling when product cast gate is more, to ensure the quality of the product produced.

Description

A kind of secondary ejection mechanism for mold
Technical field
The utility model relates to a kind of secondary ejection mechanism for mold.
Background technology
Traditional Double-ejection is all do ejector delay or increase ejector retainner plate, makes mould have very large variation like this, and situation about simultaneously can only shut down at mould go to improve, and can increase thickness and the high cost of mould and can not meet existing mold and require.
Utility model content
The purpose of this utility model is to provide a kind of secondary ejection mechanism for mold, to solve the problem of existing mold secondary ejecting mechanism complicated operation.
For solving the problems of the technologies described above, the utility model provides a kind of secondary ejection mechanism for mold, comprises rear mold main body, and the bottom of rear mold main body is provided with thimble fixed head, and the top of thimble fixed head is provided with material masthead needle plate corresponding thereto and die backing plate successively; Be provided with the first elastic force apparatus between thimble fixed head and material masthead needle plate, between material masthead needle plate and die backing plate, be provided with the second elastic force apparatus.
Further, the first elastic force apparatus is the first spring; Second elastic force apparatus is the second spring.
Further, the elastic force of the first spring is less than the elastic force of the second spring.
The beneficial effects of the utility model are: the utility model utilizes the elastic force difference of different spring, make it produce in the different time and shrink, and then produce the time difference of ejecting product and second time ejecting product for the first time.The utility model structure is simple, easy to operate, can realize Double-ejection operation when not increasing ejector retainner plate, can effectively prevent from producing the situation of pulling when product cast gate is more, to ensure the quality of the product produced.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model most preferred embodiment.
Wherein: 1, rear mold main body; 2, masthead needle plate is expected; 3, thimble fixed head; 4, the first spring; 5, the second spring; 6, die backing plate.
Detailed description of the invention
Below detailed description of the invention of the present utility model is described; so that those skilled in the art understand the utility model; but should be clear; the utility model is not limited to the scope of detailed description of the invention; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present utility model determined, these changes are apparent, and all innovation and creation utilizing the utility model to conceive are all at the row of protection in appended claim.
Secondary ejection mechanism for mold as shown in Figure 1, it comprises the thimble fixed head 3 of the bottom being arranged on rear mold main body 1; The top of thimble fixed head 3 is provided with material masthead needle plate 2 corresponding thereto and die backing plate 6 successively.Wherein, be provided with the first spring 4 between thimble fixed head 3 and material masthead needle plate 2, be provided with the second spring 5 between thimble fixed head 3 and die backing plate 6, and the elastic force of the first spring 4 be less than the elastic force of the second spring 5.
In injection moulding production process, first promote thimble fixed head 3 by platform machine push rod and move upward, namely promote the material bar be fixed on the upper surface of thimble fixed head 3 and move upward; In thimble fixed head 3 motion process, the elastic force due to the first spring 4 is less than the elastic force of the second spring 5, therefore first thimble fixed head 3 compresses the first spring 4, and now the second spring 5 almost maintains the original state constant; When the first spring 4 is compressed to most short status, product first time can eject by the material bar be fixed on thimble fixed head 3 upper surface.
Complete after first time ejects, thimble fixed head 3 moves on and to be moved upward by promotions material masthead needle plate 2, namely promotes to be fixed on and expects that the material bar on masthead needle plate 2 moves upward; Now, the second spring 5 is compressed and deformation is occurred; When the second spring 5 is compressed to a certain degree, product can be carried out second time and eject by the material bar be fixed on material masthead needle plate 2.
The utility model utilizes the elastic force difference of different spring, makes it produce in the different time and shrinks, and then produce the time difference of ejecting product and second time ejecting product for the first time.The utility model structure is simple, easy to operate, can realize Double-ejection operation when not increasing ejector retainner plate, can effectively prevent from producing the situation of pulling when product cast gate is more, to ensure the quality of the product produced.

Claims (3)

1. a secondary ejection mechanism for mold, comprise rear mold main body (1), it is characterized in that, the bottom of described rear mold main body (1) is provided with thimble fixed head (3), and the top of described thimble fixed head (3) is provided with material masthead needle plate (2) corresponding thereto and die backing plate (6) successively; Be provided with the first elastic force apparatus between described thimble fixed head (3) and described material masthead needle plate (2), between described material masthead needle plate (2) and described die backing plate (6), be provided with the second elastic force apparatus.
2. secondary ejection mechanism for mold according to claim 1, is characterized in that, described first elastic force apparatus is the first spring (4); Described second elastic force apparatus is the second spring (5).
3. secondary ejection mechanism for mold according to claim 2, is characterized in that, the elastic force of described first spring (4) is less than the elastic force of the second spring (5).
CN201520257446.2U 2015-04-27 2015-04-27 A kind of secondary ejection mechanism for mold Expired - Fee Related CN204725733U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520257446.2U CN204725733U (en) 2015-04-27 2015-04-27 A kind of secondary ejection mechanism for mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520257446.2U CN204725733U (en) 2015-04-27 2015-04-27 A kind of secondary ejection mechanism for mold

Publications (1)

Publication Number Publication Date
CN204725733U true CN204725733U (en) 2015-10-28

Family

ID=54384115

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520257446.2U Expired - Fee Related CN204725733U (en) 2015-04-27 2015-04-27 A kind of secondary ejection mechanism for mold

Country Status (1)

Country Link
CN (1) CN204725733U (en)

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Legal Events

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

Granted publication date: 20151028

Termination date: 20190427