CN218948352U

CN218948352U - Injection mold with forced demolding structure

Info

Publication number: CN218948352U
Application number: CN202223363600.3U
Authority: CN
Inventors: 杜星海
Original assignee: Wuhan Lingchuang Precision Mold Co ltd
Current assignee: Wuhan Lingchuang Precision Mold Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-05-02
Anticipated expiration: 2032-12-13

Abstract

The utility model relates to an injection mold with a forced demolding structure, which comprises a front mold assembly, a rear mold base and a first panel, wherein the front mold assembly comprises a front mold base, the front mold base is in sliding connection with the rear mold base, a front mold is fixed on the front mold base, a rear mold is fixed on the rear mold base, the first panel is in sliding connection with the front mold assembly, a plurality of springs are arranged between the first panel and the front mold assembly, a plurality of elastic columns are arranged between the front mold base and the rear mold base, a plurality of cylinder barrels penetrate through the inside of the front mold base, an inserting rod is inserted into each cylinder barrel, the upper end of the inserting rod is fixedly connected with the first panel, and the lower end of the inserting rod extends into a mold forming cavity. The elastic column is arranged between the front die holder and the rear die holder, so that the front die is easier to be demolded under the elastic action of the elastic column when the front die is demolded; through setting up the spring between first panel and front mould subassembly, the spring force effect drives first panel and removes when the drawing of patterns to make inserted bar and molded product break away from, the drawing of patterns of being convenient for.

Description

Injection mold with forced demolding structure

Technical Field

The utility model relates to the technical field of injection molds, in particular to an injection mold with a forced demolding structure.

Background

Injection molding, also known as injection molding, is a method of injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation in operation, multiple patterns, various shapes, large size, accurate product size, easy updating of the product, and capability of forming parts with complex shapes, and is suitable for the field of mass production, products with complex shapes and other molding processing.

For certain products, silica gel is used for injection molding, and the front mold is required to be partially embedded into the molded product, because the silica gel has strong coating property and large friction coefficient, the product is difficult to demould after injection molding. Therefore, there is a need for an injection mold with a forced demolding structure to solve the above technical problems.

Disclosure of Invention

The utility model provides an injection mold with a forced demolding structure, aiming at the technical problems in the prior art.

The technical scheme for solving the technical problems is as follows: the utility model provides an injection mold with force drawing of patterns structure, includes front mould subassembly, back die holder, first panel, front mould subassembly includes the front die holder, the front die holder with back die holder sliding connection, be fixed with the front mould on the front die holder, be fixed with the back mould on the back die holder, first panel with front mould subassembly sliding connection, first panel with install a plurality of springs between the front mould subassembly, the front die holder with install a plurality of elastic columns between the back die holder, the inside of front die holder is run through and is provided with a plurality of cylinder barrels, every the inside of cylinder barrel has all been inserted an inserted the inserted bar, the upper end of inserted bar with first panel fixed connection, the lower extreme of inserted bar stretches into in the mould cavity.

Preferably, in the injection mold with the forced demolding structure, a second panel is fixed on the front mold base, a plurality of grooves are formed in the second panel, the springs are embedded in the grooves, and the springs are in one-to-one correspondence with the grooves.

Preferably, in the injection mold with the forced demolding structure, a plurality of guide sleeves are fixed in the front mold base, a plurality of guide posts are fixed on the rear mold base, the guide sleeves correspond to the guide posts one by one, and the guide sleeves are in sliding connection with the guide posts.

Preferably, in the injection mold with the forced demolding structure, the number of the springs is four, and the four springs are distributed in a 2X2 matrix.

Preferably, in the injection mold with the forced demolding structure, the upper end of the elastic column is fixed on the front mold base.

Preferably, the injection mold with the forced demolding structure is characterized in that the first panel is provided with an injection molding opening.

Preferably, in the injection mold with the forced demolding structure, the insert rod penetrates through the second panel and is in sliding connection with the second panel.

The beneficial effects of the utility model are as follows: the elastic column is arranged between the front die holder and the rear die holder, so that the front die is easier to be demolded under the elastic action of the elastic column when the front die is demolded; through setting up the spring between first panel and front mould subassembly, the spring force effect drives first panel and removes when the drawing of patterns to make inserted bar and molded product break away from, the drawing of patterns of being convenient for.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the structure of the present utility model after the front mold base and the front mold are hidden;

FIG. 3 is a schematic view of the structure of the present utility model after the front mold base and the first panel are hidden;

FIG. 4 is a schematic view of the structure of the rear mold, the molded product and the insert pin;

FIG. 5 is a schematic view of a set of insert pins and a rear mold in FIG. 4;

fig. 6 is a schematic structural view of the molded product.

In the drawings, the list of components represented by the various numbers is as follows:

1. the plastic injection molding machine comprises a first panel, 2, a front mold base, 3, a rear mold base, 4, a rear mold, 5, a guide sleeve, 6, an injection molding opening, 7, a second panel, 8, a spring, 9, an inserted link, 10, a cylinder barrel, 11, a molded product, 12, an injection molding cavity, 13, a front mold, 14 and an elastic column.

Detailed Description

The principles and features of the present utility model are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.

As shown in fig. 1, 2, 3, 4, 5 and 6, an injection mold with forced demolding structure comprises a front mold assembly, a rear mold assembly and a first panel 1, wherein the front mold assembly comprises a front mold base 2, the rear mold assembly comprises a rear mold base 3, a front mold 13 is fixed on the front mold base 2, a rear mold 4 is fixed on the rear mold base 3, and the front mold base 2 is in sliding connection with the rear mold base 3. Four guide sleeves 5 are fixed in the front die holder 2, four guide posts are fixed on the rear die holder 3, the guide sleeves 5 correspond to the guide posts one by one, and the guide sleeves 5 are in sliding connection with the guide posts. Four elastic columns 14 are arranged between the front die holder 2 and the rear die holder 3, the four elastic columns 14 are uniformly distributed, and the upper ends of the elastic columns 14 are fixed on the front die holder 2. The elastic column 14 contracts and accumulates elastic potential energy when the front mold assembly and the rear mold assembly are pressed together.

The front die holder 2 is fixedly provided with a second panel 7, and the second panel 7 is provided with four grooves which are distributed in a 2X2 matrix. A spring 8 is arranged in each groove, and the upper end of the spring 8 is contacted with the first panel 1.

The inside of front die holder 2 runs through and is provided with a plurality of cylinder barrels 10, and the inside of every cylinder barrel 10 has all inserted a inserted bar 9, and the upper end and the first panel 1 fixed connection of inserted bar 9. The insert rod 9 penetrates through the inner part of the second panel 7 and is in sliding connection with the second panel, and the first panel 1 is in sliding connection with the front module. The first panel 1 is provided with an injection molding opening 6, an injection molding pipe is arranged at the injection molding opening 6, and the lower end of the injection molding pipe is communicated with the injection molding cavity. After the front die 13 and the rear die 4 are pressed, the front die assembly and the rear die assembly are locked through the side lock catches, the front die 13 and the rear die 4 form an injection molding cavity, the first panel 1 is tightly attached to the front die assembly under the action of pressure, the spring 8 is compressed, and the lower end of the inserted link 9 stretches into the mold molding cavity for molding an injection molding part. By injecting a silicone gel at the injection port 6, the silicone gel fills the injection molding cavity and after cooling molding, a molded product 11 as shown in fig. 6 is formed.

During demolding, the side locks of the front die assembly and the rear die assembly are released, the front die assembly and the rear die assembly are separated due to the elastic action of the elastic column 14, meanwhile, the first panel 1 is far away from the front die assembly due to the elastic action of the spring 8, so that the insert rod 9 is driven to move, the insert rod 9 is forcedly separated from the molded product 11, the molded product 11 is separated from the front die and left on the rear die 4, and then the molded product is ejected out through the spring ejector pin on the rear die.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "left," "right," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and for simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The foregoing describes one embodiment of the present utility model in detail, but the description is only a preferred embodiment of the present utility model and should not be construed as limiting the scope of the utility model. All equivalent changes and modifications within the scope of the present utility model are intended to be covered by the present utility model.

Claims

1. An injection mold with forced demolding structure, characterized in that: including front mould subassembly, back die holder (3), first panel (1), front mould subassembly includes front die holder (2), front die holder (2) with back die holder (3) sliding connection, be fixed with front mould (13) on front die holder (2), be fixed with back mould (4) on back die holder (3), first panel (1) with front mould subassembly sliding connection, first panel (1) with install a plurality of springs (8) between the front mould subassembly, front die holder (2) with install a plurality of elastic column (14) between back die holder (3), the inside of front die holder (2) is run through and is provided with a plurality of cylinder barrels (10), every the inside of cylinder barrel (10) has all been inserted an inserted bar (9), the upper end of inserted bar (9) with first panel (1) fixed connection, the lower extreme of inserted bar (9) stretches into in the mould molding chamber.

2. The injection mold with forced demolding structure as claimed in claim 1, characterized in that: the front die holder (2) is fixedly provided with a second panel (7), the second panel (7) is provided with a plurality of grooves, the springs (8) are embedded in the grooves, and the springs (8) are in one-to-one correspondence with the grooves.

3. The injection mold with forced demolding structure as claimed in claim 1, characterized in that: the novel die comprises a front die holder (2), and is characterized in that a plurality of guide sleeves (5) are fixed in the front die holder (2), a plurality of guide posts are fixed on the rear die holder (3), the guide sleeves (5) correspond to the guide posts one by one, and the guide sleeves (5) are in sliding connection with the guide posts.

4. The injection mold with forced demolding structure as claimed in claim 1, characterized in that: the number of the springs (8) is four, and the four springs (8) are distributed in a 2X2 matrix.

5. The injection mold with forced demolding structure as claimed in claim 1, characterized in that: the upper end of the elastic column (14) is fixed on the front die holder (2).

6. The injection mold with forced demolding structure as claimed in claim 1, characterized in that: an injection molding opening (6) is formed in the first panel (1).

7. The injection mold with forced demolding structure as claimed in claim 2, characterized in that: the inserted link (9) penetrates through the inside of the second panel (7) and is connected with the second panel in a sliding mode.