CN210283089U

CN210283089U - Ejection mechanism of injection mold

Info

Publication number: CN210283089U
Application number: CN201920970122.1U
Authority: CN
Inventors: 杨炯; 罗鹏; 李�杰
Original assignee: Zhejiag Taizhou Meiduo Mould Co ltd
Current assignee: Zhejiag Taizhou Meiduo Mould Co ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-04-10
Anticipated expiration: 2029-06-25

Abstract

The utility model relates to an injection mold's ejection mechanism, include the movable mould and be located the thimble board of movable mould below, be provided with the slider on the movable mould, the slider is including the whole slider body that is the L type and being located last shaping board of slider body, slider body includes diaphragm and riser, the shaping board sets up the upper surface of diaphragm, the lateral surface protrusion of shaping board in the lateral surface of diaphragm, install the thimble on the thimble board, the slider is connected with the piston rod of hydro-cylinder, one side of slider is equipped with the movable mould and inserts, the movable mould is inserted and is fixed on the movable mould, during the compound die the slider with insert the movable mould and constitute the core of mould jointly. Compared with the prior art, the utility model discloses simple structure drives the slider through the hydro-cylinder and breaks away from the product back-off and realize loosing core, and the thimble is ejecting realizes the complete drawing of patterns, has improved the production efficiency of product, has more the practicality.

Description

Ejection mechanism of injection mold

Technical Field

The utility model relates to an injection mold's ejection mechanism belongs to injection mold technical field.

Background

The drawer cover is one of the important components of the refrigerator, and the drawer cover of one of the models in the market is provided with a U-shaped back buckle at a handle, so that the model is novel and the drawer cover is convenient to disassemble. However, the structure brings troubles to injection molding, the mold design is complex, and the reverse buckle at the handle is difficult to demould, so that the production efficiency of the product is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the shortcoming of prior art, provide an injection mold's ejection mechanism.

For realizing the purpose the utility model adopts the technical proposal that:

injection mold's ejection mechanism, include the movable mould and be located the thimble board of movable mould below, be provided with the slider on the movable mould, the slider is including the whole slider body that is the L type and being located shaping board on the slider body, the slider body includes diaphragm and riser, the shaping board sets up the upper surface of diaphragm, the lateral surface protrusion of shaping board in the lateral surface of diaphragm, install the thimble on the thimble board, the slider is connected with the piston rod of hydro-cylinder, one side of slider is equipped with the movable mould and inserts, the movable mould is inserted and is fixed on the movable mould, during the compound die the slider inserts with the movable mould and constitutes the core of mould jointly.

As a further optimization of the above technical solution: and a convex block is arranged on the outer side surface of the transverse plate, and a groove matched with the convex block is arranged on the movable die insert.

As a further optimization of the above technical solution: the number of the convex blocks is two.

As a further optimization of the above technical solution: the number of the thimbles 3 is three.

Compared with the prior art, the utility model discloses simple structure drives the slider through the hydro-cylinder and breaks away from the product back-off and realize loosing core, and the thimble is ejecting realizes the complete drawing of patterns, has improved the production efficiency of product, has more the practicality.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic structural diagram of a refrigerator drawer cover formed by injection molding through an injection mold containing the present invention.

Fig. 3 is a schematic perspective view of the middle slider of the present invention.

Fig. 4 is a schematic view of a three-dimensional structure of the center pin of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description. As shown in fig. 1-4, the ejection mechanism of the injection mold comprises a movable mold 1 and an ejector plate located below the movable mold 1, wherein a slider 2 is arranged on the movable mold 1, the slider 2 comprises a slider body 21 which is integrally L-shaped and a forming plate 22 located on the slider body 21, the slider body 21 comprises a transverse plate 211 and a vertical plate 212, the forming plate 22 is arranged on the upper surface of the transverse plate 211, the outer side surface of the forming plate 22 protrudes out of the outer side surface of the transverse plate 211, an ejector pin 3 is mounted on the ejector plate, the slider 2 is connected with a piston rod of an oil cylinder 4, a movable mold insert 5 is arranged on one side of the slider 2, the movable mold insert 5 is fixed on the movable mold, and the slider 2 and the movable mold insert 5 jointly form a mold core of the mold during mold closing. Fig. 2 is a side view of the refrigerator drawer cover 6 formed by injection molding through the injection mold of the utility model, and one end of the refrigerator drawer cover 6 is provided with a U-shaped reverse buckle 61. After the injection molding is finished, the U-shaped reverse buckle 61 just wraps the outer side surface of the forming plate 22, and the ejector pin 3 penetrates through the movable die insert 5 and ejects out of the U-shaped reverse buckle 61.

In the above technical scheme: the outer side surface of the transverse plate 211 is provided with a convex block 23, and the movable die insert 5 is provided with a groove matched with the convex block 23. In this embodiment, two bumps 23 are provided. The lug 23 is matched with the groove to play a role in positioning the slide block 2, so that the slide block 2 is reset in place and clings to the movable die insert 5 after the die assembly is finished.

In the above technical scheme: as shown in fig. 4, three ejector pins 3 are provided, and are respectively used for correspondingly ejecting the left end, the right end and the middle part of the U-shaped reverse buckle 61 in the movable die insert 5, so that ejection failure due to insufficient ejection force or uneven stress on the U-shaped reverse buckle 61 is prevented.

The utility model discloses an operating process as follows, the back of finishing of moulding plastics, the separation of movable mould cover, hydro-cylinder 4 drive slider 2 retreat, and the movable mould is inserted 5 fixed motionless, and lug 23 breaks away from the movable mould gradually and inserts 5 recesses on the 5, because the bottom of U type back-off 61 is inserted 5 location by the movable mould, so the lateral surface of the in-process shaping plate 22 that slider 2 retreats breaks away from U type back-off 61 gradually, until both break away from completely, slider 2 is loosed core and is accomplished. And then the ejector pin plate drives the ejector pin 3 to perform ejection movement, the ejector pin 3 drives the U-shaped reverse buckle 61 to move upwards to separate from the movable die insert 5, and the complete demoulding of the refrigerator drawer cover 6 is realized.

The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, all should fall into the protection scope of the utility model, the technical scheme that the design of this technical field technical personnel according to the utility model can be obtained through logic analysis, reasoning or limited experiment on prior art's basis, all should fall into.

Claims

1. The ejection mechanism of the injection mold is characterized by comprising a movable mold (1) and an ejector plate positioned below the movable mold (1), the movable mold (1) is provided with a slide block (2), the slide block (2) comprises a slide block body (21) which is L-shaped as a whole and a forming plate (22) which is positioned on the slide block body (21), the slider body (21) comprises a transverse plate (211) and a vertical plate (212), the forming plate (22) is arranged on the upper surface of the transverse plate (211), the outer side surface of the forming plate (22) protrudes out of the outer side surface of the transverse plate (211), the thimble plate is provided with a thimble (3), the slide block (2) is connected with a piston rod of the oil cylinder (4), one side of the sliding block (2) is provided with a movable die insert (5), the movable die insert (5) is fixed on the movable die, and the sliding block (2) and the movable die insert (5) jointly form a mold core of the mold during mold closing.

2. The ejection mechanism of an injection mold according to claim 1, wherein the lateral plate (211) is formed with a protrusion (23) on an outer side surface thereof, and the movable mold insert (5) is formed with a groove engaged with the protrusion (23).

3. Ejection mechanism of an injection mold according to claim 2, characterized in that said projections (23) are provided in two.

4. The ejection mechanism of an injection mold according to claim 1, characterized in that the ejector pins (3) are provided in three.