CN216182449U

CN216182449U - Forced mold-retaining mold mechanism

Info

Publication number: CN216182449U
Application number: CN202122390935.3U
Authority: CN
Inventors: 杨军; 池志浩; 陈俊龙
Original assignee: Wuhan Zhongxin Auto Parts Co ltd; Guangzhou Zhongxin Auto Parts Co ltd
Current assignee: Wuhan Zhongxin Auto Parts Co ltd; Guangzhou Zhongxin Auto Parts Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-04-05
Anticipated expiration: 2031-09-30

Abstract

The utility model discloses a die mechanism for forcibly retaining a die, which comprises a front die and a rear die, wherein a fastening piece, an elastic piece and an elastic block for retaining a formed product on the rear die are arranged on the front die, the elastic block corresponds to the edge of the formed product, and the elastic block is movably arranged on the front die through the matching between the fastening piece and the elastic piece. The mould mechanism for forcibly retaining the mould achieves the aim of preventing the product from being adhered to the front mould by arranging the fastener, the elastic piece and the elastic block for retaining the formed product on the rear mould on the front mould, wherein the elastic block corresponds to the edge of the formed product, and the elastic block is movably arranged on the front mould through the matching between the fastener and the elastic piece, so that the appearance integrity of the product is kept without using an ejector pin structure.

Description

Forced mold-retaining mold mechanism

Technical Field

The utility model relates to the technical field of dies, in particular to a die mechanism for forcibly leaving a die.

Background

Wheel fenders are a common part in automotive components. The front and back surfaces of the plastic part are smooth, and the inner surface and the outer surface of the part have no characteristics such as reinforcing ribs. During injection molding production, due to the characteristics of parts, a fender product is stuck to a front mold during production, and a manipulator cannot take out the product from the mold. Later, the ejector pin of the mold is slightly modified, the barb is arranged on the ejector pin, and after molding is finished, the product is hooked by the barb on the ejector pin, so that the product is forcibly left in the rear mold, and a manipulator can take the product conveniently. The aim of preventing the product from being adhered to the front mold is achieved, but problems are caused, such as trimming of surplus materials of the thimble barb, and influence on the appearance of the product after trimming of the surplus materials.

SUMMERY OF THE UTILITY MODEL

The utility model aims to design a die mechanism for forcibly retaining a die so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme:

the utility model provides a mould mechanism of mould is stayed in force, includes front mould and back mould, be equipped with fastener, elastic component on the front mould and be used for detaining the shaping product bullet piece on the back mould, the bullet piece is corresponding to the position of the border of shaping product, through the cooperation of fastener with the elastic component with the bullet piece is with mobilizable mode setting on the front mould.

Further, the fastener is a bolt, the bolt comprises a nut and a screw, the screw is screwed into the front die, and the nut is used for stopping the elastic block.

Furthermore, a first concave part is formed in the end face, close to the rear die, of the elastic block, a second concave part is formed in the end face, close to the front die, of the elastic block, a blocking part is formed between the first concave part and the second concave part, the screw sequentially penetrates through the first concave part, the blocking part and the second concave part to be screwed into the front die, and the nut and the blocking part are matched to prevent the elastic block from being separated.

Further, the elastic element is a spring, the spring is sleeved on the screw rod and is arranged in the first concave part, and two ends of the spring are respectively abutted against the front die and the blocking part.

Furthermore, the front mould is provided with a cavity which can accommodate the elastic block to retract.

Furthermore, a boss is formed on the rear die, and the boss corresponds to the position of the elastic block.

The utility model has the beneficial effects that: compared with the prior art, the mold mechanism for forcibly retaining the mold has the advantages that the fastening piece, the elastic piece and the elastic block for retaining the molded product on the rear mold are arranged on the front mold, wherein the elastic block corresponds to the edge of the molded product, and the elastic block is movably arranged on the front mold through the matching between the fastening piece and the elastic piece, so that the purpose of preventing the product from being adhered to the front mold is achieved, meanwhile, an ejector pin structure is not needed, and the integrity of the appearance of the product is kept.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of a front mold of the present invention;

FIG. 2 is a cross-sectional view of the front and rear molds when they are closed;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic structural view of the ejector pin mechanism.

The names of the components identified in the figures are as follows: 1. a front mold; 2. a rear mold; 3. a spring block; 4. a nut; 5. a screw; 6. a second recess; 7. a stopper portion; 8. a spring; 9. a cavity; 10. a boss; 11. producing a product; 12. a thimble; 13. material hooking; 14. a first recess.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the description is only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 4, the mold mechanism for forcibly retaining a mold of the present invention includes a front mold 1 and a rear mold 2, the front mold 1 is provided with a fastening member, an elastic member and an elastic block 3 for retaining a molded product 11 on the rear mold 2, the elastic block 3 corresponds to the edge of the molded product 11, and the elastic block 3 is movably disposed on the front mold 1 by the cooperation of the fastening member and the elastic member. As shown in fig. 4, the fender product 11 before being improved can be left on the rear mold 2 only by making a reverse buckle on the ejector pins 12, and the product 11 is hooked by the ejector pins 12 so that the product 11 is left on the rear mold 2. Although the product 11 can be left on the rear die 2 by the mechanism, the back of the product 11 is provided with the redundant material hooks 13, the appearance surface of the product 11 is damaged, and the product is manually cut off, so that the material and manpower and material resources are wasted, and the production cost of the product 11 is increased. As shown in fig. 1, the improved front mold 1 is provided with a plurality of spring blocks 3 uniformly arranged at the edge of the fender product 11 to ensure that sufficient pressure is provided to retain the fender product 11 on the rear mold 2. In this embodiment, the fastening member is a bolt, the bolt includes a nut 4 and a screw 5, the screw 5 is screwed into the front mold 1, and the nut 4 is used for stopping the elastic block 3. So set up, can twist the depth that gets into front mould 1 through adjusting bolt and adjust the distance that bullet piece 3 exceeds front mould 1, make things convenient for the later stage to change bullet piece 3 or elastic component moreover.

The end face, close to the rear die 2, of the elastic block 3 is provided with a first concave portion 14, the end face, close to the front die 1, of the elastic block is provided with a second concave portion 6, a blocking portion 7 is formed between the first concave portion 14 and the second concave portion 6, the screw 5 sequentially penetrates through the first concave portion 14, the blocking portion 7 and the second concave portion 6 to be screwed into the front die 1, and the nut 4 and the blocking portion 7 are matched to prevent the elastic block 3 from being separated. With such an arrangement, the stop portion 7 can also play a role of guiding the sliding of the elastic block 3, and the direction for limiting the ejection of the elastic block 3 is unique. Preferably, the elastic element is a spring 8, the spring 8 is sleeved on the screw 5 and is disposed in the first recess 14, and two ends of the spring 8 respectively abut against the front mold 1 and the stop portion 7. With this arrangement, the fender product 11 can be retained on the rear mold 2 by the pressure of the spring 8 on the elastic block 3. The front mould 1 is provided with a cavity 9 which can accommodate the elastic block 3 to retract. With this arrangement, the spring block 3 can be prevented from protruding to affect the molding of the product 11. The rear die 2 is provided with a boss 10, and the boss 10 corresponds to the position of the elastic block 3. As shown in fig. 3, the boss 10 is on the left side of the first recess 14, and one side of the boss 10 abuts against the edge of the molded product 11. Thus, the boss 10 may serve to assist in the molding of the product 11 during injection molding.

The working principle of the embodiment is as follows: when the mold is closed, the elastic block 3 is pressed back to the original position through the PL parting surface, and at the moment, the elastic block 3 is placed in the cavity. After the injection molding is finished, the mold is opened, the PL parting surfaces of the front mold 1 and the rear mold 2 are separated, and the elastic block 3 pushes the fender product towards the rear mold 2 under the action of the spring 8, so that the fender product 11 is separated from the front mold 1 and is left on the rear mold 2. And then the mold 2 ejects the product by the ejector pin 12, and the manipulator can take the product out of the mold, thereby realizing automatic production.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a mould mechanism of mould is stayed in force, includes front mould and back mould, its characterized in that: the front die is provided with a fastener, an elastic piece and an elastic block used for retaining a formed product on the rear die, the elastic block corresponds to the edge of the formed product, and the elastic block is movably arranged on the front die through the cooperation of the fastener and the elastic piece.

2. The die mechanism for forcibly leaving a die according to claim 1, wherein: the fastener is a bolt, the bolt comprises a nut and a screw, the screw is screwed into the front die, and the nut is used for stopping the elastic block.

3. The die mechanism for forcibly leaving a die according to claim 2, wherein: the end face, close to the rear die, of the elastic block is provided with a first concave portion, the end face, close to the front die, of the elastic block is provided with a second concave portion, a blocking portion is formed between the first concave portion and the second concave portion, the screw rod sequentially penetrates through the first concave portion, the blocking portion and the second concave portion to be screwed into the front die, and the nut is matched with the blocking portion to prevent the elastic block from being separated.

4. The die mechanism for forcibly leaving a die according to claim 3, wherein: the elastic piece is a spring, the spring is sleeved on the screw rod and is arranged in the first concave part, and two ends of the spring are respectively abutted to the front die and the stopping part.

5. The die mechanism for forcibly leaving a die according to claim 1, wherein: the front mould is provided with a cavity capable of accommodating the elastic block to retract.

6. The die mechanism for forcibly leaving a die according to claim 1, wherein: and a boss is formed on the rear die and corresponds to the position of the elastic block.