CN214395216U

CN214395216U - Fixed die of injection mold convenient for demolding

Info

Publication number: CN214395216U
Application number: CN202120436147.0U
Authority: CN
Inventors: 王兴成; 徐辉; 徐力; 郑明洪
Original assignee: Shanghai Mingjian Molding Technology Co ltd
Current assignee: Shanghai Mingjian Molding Technology Co ltd
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-10-15
Anticipated expiration: 2031-02-26

Abstract

The utility model relates to an injection mold's cover half convenient to drawing of patterns, including the cover half seat, thimble and the cover half mould benevolence of fixing on the cover half seat, still be provided with the activity space on the cover half seat, the activity space is located the inboard of cover half mould benevolence, the thimble includes roof pressure end and link, the link is located the activity space, the roof pressure end passes the terminal surface of cover half mould benevolence and roof pressure end and is regarded as the partly of product shaping face, still be provided with the mount pad in the activity space, the link sets up on the mount pad, still fixed being provided with on the mount pad is used for the connecting piece with injection mold's movable mould fixed connection, the mount pad can be in the activity space with movable mould synchronous motion and drive the thimble ejecting or reset. The fixed mould of injection mold convenient to drawing of patterns of this application is when the cooperation movable mould die sinking, and the movable mould removes and drives mount pad synchronous motion, and then drives thimble synchronous motion ejecting with the product after the shaping, need not to wait again and drive the thimble again behind the die sinking ejecting with the product to improve the efficiency that injection mold took out the product.

Description

Fixed die of injection mold convenient for demolding

Technical Field

The application relates to the field of injection molds, in particular to a fixed mold of an injection mold convenient for demolding.

Background

The injection molding technology is widely applied to production and manufacturing, and products with complex shapes can be manufactured by utilizing injection molding. When a product is injection-molded, an injection mold specially designed according to the shape of the product is needed, and the injection mold in the prior art generally comprises a movable mold and a fixed mold. The movable mold comprises a movable mold base and a movable mold core, the fixed mold comprises a fixed mold base, a fixed mold core and an ejector pin, and when the movable mold and the fixed mold are closed, the movable mold core and the fixed mold core enclose a forming cavity of a product. When the injection molding die is used, a molten product is injected into the molding cavity, after the product is solidified and molded, the movable die and the fixed die are opened, and then the molded product is ejected out of the molding cavity through the ejector pin.

The injection mold in the prior art has the defect that when a product is taken out from a forming cavity, a movable mold and a fixed mold need to be opened first, and then an ejector pin is driven to eject the product, so that the efficiency of taking out the product is low.

SUMMERY OF THE UTILITY MODEL

In order to improve the efficiency that injection mold took out the product, this application provides the cover half of injection mold convenient to drawing of patterns.

The application provides an injection mold's cover half convenient to drawing of patterns adopts following technical scheme:

the utility model provides an injection mold's cover half convenient to drawing of patterns, includes cover half seat, thimble and fixes the cover half mould benevolence on the cover half seat, still be provided with the activity space on the cover half seat, the activity space is located the inboard of cover half mould benevolence, the thimble includes roof pressure end and link, and the link is located the activity space, and the roof pressure end passes the terminal surface of cover half mould benevolence and roof pressure end and is regarded as a part of product shaping face, and the mould benevolence chamber of roof pressure end cooperation cover half mould benevolence forms a part of the shaping chamber of product, still is provided with the mount pad in the activity space, the link sets up on the mount pad, still fixedly on the mount pad be provided with be used for with injection mold's movable mould fixed connection's connecting piece, the mount pad can be in the activity space with movable mould synchronous movement and drive thimble ejecting or reset.

Through adopting above-mentioned technical scheme, the cover half of the injection mold convenient to drawing of patterns of this application is when the cooperation movable mould die sinking, and the movable mould removes and drives mount pad synchronous movement, and then drives thimble synchronous movement ejecting with the product after the shaping, need not to wait again after the die sinking again to drive the thimble ejecting with the product to improve the efficiency that the injection mold took out the product.

Preferably, the thimble is arranged obliquely relative to the moving direction of the mounting seat, and the connecting end is arranged on the mounting seat in a guiding and moving manner.

Through adopting above-mentioned technical scheme, can be ejecting product to break away from the back-off to one side.

Preferably, the connecting end of the thimble is fixedly provided with a guide part, and the mounting seat is provided with a guide sliding chute which is matched with the guide part in a guide and moving manner.

Through adopting above-mentioned technical scheme, conveniently remove the link direction of thimble and set up on the mount pad.

Preferably, the guide part is of a T-shaped structure, the guide chute is a T-shaped chute, and the guide part is arranged in the guide chute in a reverse buckling mode.

Through adopting above-mentioned technical scheme, can lead to the removal on the mount pad with the link restriction of thimble.

Preferably, an elastic element is further arranged in the movable space, and the elastic element is arranged between the end face of the mounting seat, which is far away from the fixed die core, and the corresponding cavity wall of the movable space in a pressing mode.

By adopting the technical scheme, the elastic piece can play a role in buffering, and the end face of the mounting seat, which deviates from the fixed die core, is prevented from violently colliding on the corresponding cavity wall of the movable space.

Preferably, the number of the die core cavities is at least two, the number of the ejector pins is at least two, and the ejector pins of each group are arranged in one-to-one correspondence with the die core cavities.

By adopting the technical scheme, a plurality of products can be manufactured and molded simultaneously, and the production efficiency is improved.

Preferably, the number of the die core cavities is two, the two die core cavities are arranged in a mirror symmetry manner, the two groups of ejector pins are arranged in a mirror symmetry manner relative to the symmetry plane of the two die core cavities.

By adopting the technical scheme, the production and the manufacture of the die are facilitated.

Preferably, the fixed die holder is further fixedly provided with a guide post.

By adopting the technical scheme, the moving precision of the fixed die and the movable die during die assembly and die opening is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a stationary mold of an injection mold for facilitating demolding according to an embodiment of the present application;

FIG. 2 is an enlarged view of the structure at A in FIG. 1;

FIG. 3 is a schematic view of a fracture structure of a stationary mold of an injection mold facilitating demolding in accordance with an embodiment of the present application;

FIG. 4 is an enlarged view of the structure of FIG. 3 at B;

FIG. 5 is a schematic structural diagram of a mounting seat and an ejector pin of a fixed mold of an injection mold for facilitating demolding according to an embodiment of the present application;

FIG. 6 is a schematic structural diagram of an ejector pin and a mounting block of a fixed mold of an injection mold facilitating demolding according to an embodiment of the present application.

Description of reference numerals: 1. fixing a die holder; 2. a thimble; 21. pressing the end; 22. a connecting end; 23. a guide portion; 3. fixing a mold core; 31. a mold cavity; 4. a guide post; 5. an activity space; 6. a mounting seat; 61. mounting blocks; 62. a guide chute; 7. a connecting member; 8. producing a product; 9. a spring; 10. a spring guide post; 11. a stud.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1 and 2, the embodiment of the application discloses a fixed mold of an injection mold convenient for demolding, which comprises a fixed mold seat 1, an ejector pin 2 and a fixed mold core 3 fixed on the fixed mold seat 1. The guide posts 4 are fixedly arranged on the fixed die holder 1, and the guide posts 4 are used for being matched with the movable die, so that the moving precision of the fixed die and the movable die during die assembly and die opening is improved. Referring to fig. 3 and 4, the fixed mold base 1 is further provided with a movable space 5, and the movable space 5 is located on the inner side of the fixed mold core 3. The thimble 2 comprises a top pressing end 21 and a connecting end 22. The fixed die core 3 is provided with an inclined hole for the connecting end 22 of the thimble 2 to pass through, the connecting end 22 passes through the inclined hole of the fixed die core 3 and is positioned in the movable space 5, the jacking end 21 is positioned in the forming cavity of the fixed die core 3, the end surface of the jacking end 21 is used as a part of a product forming surface, and the jacking end 21 is matched with the die core cavity 31 of the fixed die core 3 to form a part of the forming cavity of a product. The movable space 5 is also provided with a mounting seat 6, the connecting end 22 of the thimble 2 is arranged on the mounting seat 6, and the mounting seat 6 is also fixedly provided with a rod-shaped connecting piece 7 which is fixedly connected with a movable mould of the injection mould. The fixed die holder 1 is provided with a through hole for the connecting piece 7 to pass through, and the axial direction of the through hole extends along the moving direction of the movable die. One end of the connecting piece 7 is fixedly arranged on the mounting seat 6, and the other end of the connecting piece 7 penetrates out of the through hole of the fixed die seat 1. When the fixed die is matched with the movable die to open or close the die, the movable die moves and drives the mounting seat 6 to synchronously move in the movable space 5, and then the ejector pin 2 is driven to eject a product 8 formed on the fixed die core 3 or reset.

Referring to fig. 1 and 5, two core cavities 31 are provided, and the two core cavities 31 are arranged on the fixed core 3 in mirror symmetry. The mounting seat 6 is of a plate-shaped structure, the ejector pins 2 are arranged in two groups, each group of ejector pins comprises 3 ejector pins 2 arranged in parallel at intervals along the length direction of the molded product 8, and the two groups of ejector pins are arranged in mirror symmetry with respect to the symmetrical surfaces of the two mold core cavities 31. With continued reference to fig. 4, the thimble 2 is disposed obliquely with respect to the moving direction of the mounting seat 6, and the connecting end 22 of the thimble 2 is disposed on the mounting seat 6 in a guiding movement. The mounting seat 6 is fixedly provided with a mounting block 61, the mounting block 61 is provided with a guide sliding groove 62, and the connecting end 22 of the thimble 2 is fixedly provided with a guide part 23 which is movably matched with the guide sliding groove 62 in a guide way. Referring to fig. 6, the guide portion 23 has a T-shaped structure, the guide sliding groove 62 has a T-shaped sliding groove, and the guide portion 23 is disposed inside the guide sliding groove 62 in an inverted manner, so that the connection end 22 of the thimble 2 is restricted on the mounting seat 6, and the guide portion 23 of the thimble 2 can only move along the guide sliding groove 62. When the fixed die and the movable die are opened, the movable die drives the mounting seat 6 to move towards the fixed die core 3, the mounting block 61 on the mounting seat 6 extrudes the connecting end 22 of the ejector pin 2, the ejector pin 2 moves along the inclined hole, the connecting end 22 slides in the guide sliding groove 62, and the ejection end 21 ejects a product 8.

With continued reference to fig. 3, an elastic member, in this embodiment a spring 9, is also disposed in the active space 5. The spring 9 is arranged between the end surface of the mounting seat 6 deviating from the core insert 3 and the corresponding cavity wall of the movable space 5. The cavity wall of the movable space 5 corresponding to the end face of the mounting seat 6 deviating from the cavity insert 3 is provided with a first spring mounting hole, the end face of the mounting seat 6 deviating from the cavity insert 3 is provided with a second spring mounting hole corresponding to the first spring mounting hole, the shape of the first spring mounting hole and the shape of the second spring mounting hole are matched with the shape of the spring 9, one end of the spring 9 is inserted into the first spring mounting hole, and the other end of the spring 9 is inserted into the second spring mounting hole. A spring guide post 10 is also inserted in the spring 9, a spring guide post mounting hole is also coaxially arranged on the bottom wall of the first spring mounting hole, and the diameter of the spring guide post mounting hole is smaller than that of the first spring mounting hole. A stud 11 coaxially arranged is formed at one end of the spring guide post 10, the diameter of the stud 11 is smaller than that of the spring guide post 10, a threaded hole in threaded fit with the stud 11 is formed in the bottom wall of the second spring mounting hole, and the stud 11 is in threaded connection with the threaded hole. When the movable die and the fixed die are assembled, the spring 9 is compressed, and the overhanging end of the spring guide post 10 is inserted into the spring guide post mounting hole.

The implementation principle of the embodiment of the application is as follows: the fixed mould of injection mold convenient to drawing of patterns of this application is when the cooperation movable mould die sinking, and the movable mould removes and drives 6 synchronous motion of mount pad, and then drives 2 synchronous motion of thimble ejecting with the product 8 after the shaping, need not to wait again and drive 2 again behind the die sinking ejecting with product 8 to improve the efficiency that injection mold took out product 8.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an injection mold's cover half convenient to drawing of patterns, includes cover half seat (1), thimble (2) and fixes cover half benevolence (3) on cover half seat (1), its characterized in that: the fixed die holder (1) is also provided with a movable space (5), the movable space (5) is positioned at the inner side of the fixed die core (3), the thimble (2) comprises a jacking end (21) and a connecting end (22), the connecting end (22) is positioned in the movable space (5), the jacking end (21) penetrates through the fixed die core (3) and the end surface of the jacking end (21) is used as a part of a product forming surface, the jacking end (21) is matched with a die core cavity (31) of the fixed die core (3) to form a part of a product forming cavity, a mounting seat (6) is also arranged in the movable space (5), the connecting end (22) is arranged on the mounting seat (6), a connecting piece (7) for being fixedly connected with a moving die of an injection die is also fixedly arranged on the mounting seat (6), the mounting seat (6) can synchronously move with the movable mold in the movable space (5) and drive the ejector pin (2) to eject or reset.

2. A fixed mold for an injection mold facilitating mold release according to claim 1, wherein: the thimble (2) is arranged obliquely relative to the moving direction of the mounting seat (6), and the connecting end (22) is arranged on the mounting seat (6) in a guiding and moving mode.

3. The fixed mold for an injection mold facilitating demolding according to claim 2, wherein: the thimble structure is characterized in that a guide part (23) is fixedly arranged at the connecting end (22) of the thimble (2), and a guide sliding groove (62) which is movably matched with the guide part (23) in a guide manner is arranged on the mounting seat (6).

4. A fixed mold for an injection mold facilitating mold release according to claim 3, wherein: the guide part (23) is of a T-shaped structure, the guide sliding groove (62) is a T-shaped sliding groove, and the guide part (23) is arranged in the guide sliding groove (62) in a reversed mode.

5. A fixed mold for an injection mold facilitating mold release according to any one of claims 1 to 4, wherein: an elastic piece is further arranged in the movable space (5), and the elastic piece is arranged between the end face, deviating from the fixed die core (3), of the mounting seat (6) and the corresponding cavity wall of the movable space (5) in a jacking mode.

6. A fixed mold for an injection mold facilitating mold release according to any one of claims 1 to 4, wherein: the number of the die core cavities (31) is at least two, the number of the ejector pins (2) is at least two, and the ejector pins of each group are arranged in one-to-one correspondence with the die core cavities (31).

7. The fixed mold for an injection mold facilitating demolding according to claim 6, wherein: the two die core cavities (31) are arranged in a mirror symmetry mode, the two ejector pins (2) are arranged in two groups, and the two ejector pins are arranged in a mirror symmetry mode relative to the symmetry plane of the two die core cavities (31).

8. A fixed mold for an injection mold facilitating mold release according to any one of claims 1 to 4, wherein: and the fixed die holder (1) is also fixedly provided with a guide post (4).