CN210820732U

CN210820732U - Combined type demoulding mechanism of injection mould

Info

Publication number: CN210820732U
Application number: CN201921215594.2U
Authority: CN
Inventors: 彭国委
Original assignee: Bengbu Xinlicheng Electronic Technology Co ltd
Current assignee: Bengbu Xinlicheng Electronic Technology Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-06-23
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses an injection mold combined type demoulding mechanism, its characterized in that: the ejector plate is sleeved on the outer side of the rear end of the movable die, the movable die is fixed on the movable die plate, the rear part of the ejector plate is fixed with a guide rod, the guide rod penetrates through a guide hole in the movable die plate, the outer side of the front end of the guide rod is provided with a first spring, two ends of the first spring are respectively connected with the movable die plate and the ejector plate, the middle part of the movable die is provided with a plurality of groups of piston cavities, pistons matched with the piston cavities are arranged in the piston cavities, the pistons are fixed on the rear part of the ejector rod, the outer side of the ejector rod is provided with a second spring, two ends of, the piston is connected, and the front end of ejector beam is connected with the liftout piece of frustum shape, and the liftout piece is taut in the bell jar of movable mould front end, the preceding terminal surface of liftout piece and the preceding terminal surface parallel and level of movable mould, movable mould and cover half looks adaptation, form the die cavity of moulding plastics between movable mould, cover half and the liftout plate, the utility model discloses can effectively improve the qualification rate of product.

Description

Combined type demoulding mechanism of injection mould

Technical Field

The utility model belongs to the technical field of the mould, concretely relates to injection mold combined type demoulding mechanism.

Background

Injection molds are tools for producing plastic articles. In plastic production enterprises, production of disc-shaped and box-shaped plastic products with larger sizes is often involved, and due to the large size of the plastic products, demoulding cannot be normally carried out by adopting the existing demoulding mechanism. If the mold is forcibly removed, damage to the product or the mold may occur. Therefore, for the above reasons, there is a need for an injection mold demolding mechanism capable of effectively demolding large disc-shaped and box-shaped plastic products to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide an injection mold combined type demoulding mechanism.

The utility model provides an injection mold combined type demoulding mechanism, includes liftout board, liftout piece, its characterized in that: the ejector plate is sleeved on the outer side of the rear end of the movable die, the movable die is fixed on the movable die plate, the rear part of the ejector plate is fixed with a guide rod, the guide rod penetrates through a guide hole in the movable die plate, the outer side of the front end of the guide rod is provided with a first spring, the first spring is arranged in a spring groove in the movable die plate, two ends of the first spring are respectively connected with the movable die plate and the ejector plate, the middle part of the movable die is provided with a plurality of groups of piston cavities, pistons matched with the piston cavities are arranged in the piston cavities, the pistons are fixed on the rear part of the ejector rod, the outer side of the ejector rod is provided with a second spring, two ends of the second spring are respectively connected with the inner wall of the piston cavity and the pistons, the front end of the ejector rod is connected with a frustum-shaped ejector block, the ejector block is tensioned in a conical groove at the front end of the movable die, and the front, the movable mould is matched with the fixed mould, and an injection molding cavity is formed among the movable mould, the fixed mould and the ejector plate.

Preferably, a positioning column is fixed on the side of the movable die plate, the middle of the positioning column penetrates through the ejector plate, the front end of the positioning column is inserted into the fixed die, a nozzle is fixed at the center of the front end of the fixed die and communicated with the injection molding cavity, guide columns are fixed on four corners of the rear portion of the fixed die, the rear end of each guide column is connected with the movable die base, the middle of each guide column penetrates through a guide sleeve fixed on the movable die plate, a press is fixed on the front portion of the movable die base, and a piston rod of the press is connected with the movable die plate.

Preferably, the rear end of the piston cavity is connected with a compressed air interface through a compressed air channel, and the compressed air interface is fixed on the movable die plate.

Compared with the prior art, the beneficial effects of the utility model are that:

when in use, the utility model is mainly used for demoulding large disc-shaped and box-shaped parts. In the initial state, a piston rod of the press machine is in a contraction state, the movable mold and the fixed mold are in a separated state, the ejector plate is in a separated state with the movable mold plate under the action of a first spring force, the ejector block is in a state of being tensioned in the tapered groove under the action of a second spring, when the mold is closed, the piston rod of the press machine extends out, after the die is closed, the injection molding machine injects the melted plastic into the injection molding cavity, the die is opened after the plastic is solidified and cooled after the injection molding is finished, the piston rod of the press machine contracts, the plastic part is sleeved on the outer side of the movable die, the ejector plate generates thrust to the plastic part under the action of the spring force, the compressed air enters each piston cavity through the compressed air channel, the piston moves forwards after being pressurized, the ejector block extends out of the conical groove, and under the combined action of the material ejecting block and the material ejecting plate, the plastic part is taken off from the movable die, and the demolding is finished. The utility model discloses a set up ejector piece and ejector plate and realize the drawing of patterns of large-scale disk part, can improve the qualification rate of product greatly, avoid the part to take place to damage at drawing of patterns in-process.

Drawings

Fig. 1 is the structure schematic diagram of the composite type demoulding mechanism of the injection mould of the utility model.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

In the figure, the device comprises a movable die base 1, a movable die base 2, a guide pillar 3, a guide rod 4, a guide sleeve 5, a first spring 6, a movable die plate 7, an ejector plate 8, a positioning column 9, a fixed die 10, an injection molding cavity 11, a piston 12, an ejector block 13, an ejector rod 14, a second spring 15, a nozzle 16, a movable die 17, a press machine 18, a compressed air interface 19, a compressed air channel 20 and a base.

Detailed Description

Referring to fig. 1 and 2, the composite demolding mechanism for the injection mold comprises a material ejecting plate 7 and a material ejecting block 12, and is characterized in that: the ejector plate 7 is sleeved on the outer side of the rear end of the movable die 16, the movable die 16 is fixed on the movable die plate 6, the guide rod 3 is fixed at the rear part of the ejector plate 7, the guide rod 3 penetrates through a guide hole in the movable die plate 6, a first spring 5 is arranged on the outer side of the front end of the guide rod 3, the first spring 5 is arranged in a spring groove in the movable die plate 6, two ends of the first spring 5 are respectively connected with the movable die plate 6 and the ejector plate 7, a plurality of groups of piston cavities are arranged in the middle part of the movable die 16, pistons 11 matched with the piston cavities are arranged in the piston cavities, the pistons 11 are fixed at the rear part of the ejector rod 13, a second spring 14 is arranged on the outer side of the ejector rod 13, two ends of the second spring 14 are respectively connected with the inner wall of the piston cavity and the pistons 11, the front end of the ejector rod 13 is connected with a frustum-shaped ejector block 12, the ejector block 12 is tensioned in a conical groove, the front end face of the ejector block 12 is flush with the front end face of the movable mold 16, the movable mold 16 is matched with the fixed mold 9, and an injection molding cavity 10 is formed among the movable mold 16, the fixed mold 9 and the ejector plate 7.

A positioning column 8 is fixed on the side of the movable die plate 6, the middle of the positioning column 8 penetrates through a material ejecting plate 7, the front end of the positioning column is inserted into a fixed die 9, a nozzle 15 is fixed at the center of the front end of the fixed die 9, the nozzle 15 is communicated with an injection molding cavity 10, guide columns 2 are fixed on four corners of the rear portion of the fixed die 9, the rear end of each guide column 2 is connected with the movable die base 1, the middle of each guide column 2 penetrates through a guide sleeve 4 fixed on the movable die plate 6, a press 17 is fixed on the front portion of the movable die base 1, and a piston rod of the press 17 is connected with.

The rear end of the piston cavity is connected with a compressed air interface 18 through a compressed air channel 19, and the compressed air interface 18 is fixed on the movable die plate 6.

The utility model discloses a theory of operation is:

when in use, the utility model is mainly used for demoulding large disc-shaped and box-shaped parts. In an initial state, a piston rod of a press machine 17 is in a contraction state, a movable mold 16 and a fixed mold 9 are in a separated state, an ejector plate 7 is in a separated state with a movable mold plate 6 under the action of a first spring 5, an ejector block 12 is in a state of being tensioned in a conical groove under the action of a second spring 14, during mold closing, the piston rod of the press machine 17 extends out, after mold closing, an injection molding machine injects molten plastic into an injection mold cavity 10, mold opening is performed after the plastic is solidified and cooled after injection molding, the piston rod of the press machine 17 contracts, a plastic piece is sleeved on the outer side of the movable mold 16, the ejector plate 7 generates thrust on the plastic piece under the action of the spring force, compressed air enters each piston cavity through a compressed air channel 19, the piston 11 moves forwards after being subjected to pressure, the ejector block 12 extends out of the conical groove, and under the combined action of the ejector block 12 and the ejector plate, and (4) taking the plastic part off the movable die 16 to complete the demolding. The utility model discloses a set up ejector block 12 and ejector plate 7 and realize the drawing of patterns of large-scale disk part, can improve the qualification rate of product greatly, avoid the part to take place to damage in drawing of patterns in-process.

The technical solution of the present invention is to provide an improved method for manufacturing a semiconductor device, which is characterized in that the method is not limited by the above-mentioned method, and the method is not substantially improved by the method and the device, or the method and the device are directly applied to other occasions without improvement, all within the protection scope of the present invention.

Claims

1. The utility model provides an injection mold combined type demoulding mechanism, includes liftout board (7), liftout piece (12), its characterized in that: the ejector plate (7) is sleeved on the outer side of the rear end of the movable mold (16), the movable mold (16) is fixed on the movable mold plate (6), the guide rod (3) is fixed at the rear part of the ejector plate (7), the guide rod (3) penetrates through the guide hole in the movable mold plate (6), a first spring (5) is arranged on the outer side of the front end of the guide rod (3), the first spring (5) is arranged in a spring groove in the movable mold plate (6), two ends of the first spring (5) are respectively connected with the movable mold plate (6) and the ejector plate (7), a plurality of groups of piston cavities are arranged in the middle of the movable mold (16), pistons (11) matched with the piston cavities are arranged in the piston cavities, the pistons (11) are fixed at the rear part of the ejector rod (13), a second spring (14) is arranged on the outer side of the ejector rod (13), and two ends of the second spring (14) are respectively connected with the inner wall of the piston cavities, Piston (11) are connected, the front end of ejector beam (13) is connected with ejector block (12) of frustum shape, ejector block (12) are taut in the bell jar of movable mould (16) front end, the preceding terminal surface parallel and level of ejector block (12) and the preceding terminal surface of movable mould (16), movable mould (16) and cover half (9) looks adaptation, form between movable mould (16), cover half (9) and ejector plate (7) and mould plastics die cavity (10).

2. The composite demolding mechanism of claim 1, wherein: the injection molding machine is characterized in that a positioning column (8) is fixed on the side of the movable die plate (6), the middle of the positioning column (8) penetrates through the ejector plate (7), the front end of the positioning column is inserted into the fixed die (9), a nozzle (15) is fixed at the center of the front end of the fixed die (9), the nozzle (15) is communicated with an injection molding cavity (10), guide pillars (2) are fixed at four corners of the rear portion of the fixed die (9), the rear end of each guide pillar (2) is connected with the movable die holder (1), the middle of each guide pillar (2) penetrates through a guide sleeve (4) fixed on the movable die plate (6), a press (17) is fixed at the front portion of the movable die holder (1), and a piston rod of the press (17) is.

3. The composite demolding mechanism of claim 1, wherein: the rear end of the piston cavity is connected with a compressed air interface (18) through a compressed air channel (19), and the compressed air interface (18) is fixed on the movable template (6).