CN2759758Y - Two-stage side-wise loose-core device of plastic mould - Google Patents

Abstract

Two-stage lateral core-pulling device for plastic moulds. The fixed plate of the movable mold is fixed on the base plate of the movable mold with screws through the backing plate and the support plate. The ejector pin is fixed on the ejector plate with the fixed plate. In the support plate, the fixed mold plate is fixed on the fixed mold seat plate, the upper core is set on the fixed mold plate, the sprue sleeve is fixed on the fixed mold plate and the fixed mold seat plate through the positioning ring, and the punch is set on the fixed mold plate. The core is fixed on the backing plate through the punch, the wedge block is fixed on the side of the seat plate of the fixed mold, the side core is installed in the slider, and the slider is set on the In the side of the fixed formwork plate, the inclined guide post is arranged in the slider and the side core, and the inclined guide post is fixed on the fixed formwork plate. The utility model has the advantages of simple structure, reliable operation, high production efficiency and low manufacturing cost. It can meet the needs of mass production of plastic parts.

Description

Secondary Lateral Core Pulling Device for Plastic Molds

technical field

The utility model belongs to the technology of plastic injection moulds, in particular to a secondary lateral core-pulling device for plastic injection moulds.

Background technique

Plastic injection molds are the fastest growing plastic molding molds. Its plastic products are more and more widely used in daily life, such as construction, machinery, electronics, instruments, meters and other industrial fields. In plastic molding, it is not only required to improve product quality and production efficiency, but also requires a simple mold structure to reduce production costs. However, for products with complex plastic parts and side holes, some molds have relatively complicated demoulding mechanisms for automatically ejecting products, which seriously affects the service life and maintenance of injection molds.

Utility model content

The purpose of this utility model is to provide a plastic injection mold with simple structure, reliable operation, high production efficiency and low manufacturing cost for the technical problems existing in the demoulding mechanism of the existing injection mold. device.

The utility model includes a movable mold seat plate, a support plate, a backing plate, a movable mold fixed plate, an inclined guide column, a fixed mold plate, a fixed mold seat plate, an upper core, a positioning ring, a sprue sleeve, a wedge block, and a side profile. Core, stop pin, slider, positioning pin, core, punch, ejector rod, fixed plate and ejector plate, the movable mold fixed plate is fixed on the movable mold seat plate with bolts through the backing plate and the supporting plate, and the ejector rod is used to The fixed plate is fixed on the ejector plate, the fixed plate and the ejector plate are set in the support plate, the fixed mold plate is fixed on the fixed mold seat plate, the upper core is set on the fixed mold plate, and the sprue sleeve is fixed on the fixed mold plate through the positioning ring. The fixed mold plate and the fixed mold seat plate, the punch is set in the fixed mold plate and fixed on the backing plate through the movable mold fixing plate, the core is fixed on the backing plate through the punch, and the wedge block is fixed on the fixed mold seat plate The side core is installed in the slider, the slider is set on the side of the fixed mold plate, the inclined guide post is set in the slider and the side core, the inclined guide post can slide in the side core, and the inclined guide post passes through The fixed mold plate is fixed on the fixed mold seat plate, the stop pin and the spring are installed on the slider and fixed with screws, and the positioning pin and spring are installed on the movable mold fixed plate and fixed with screws.

The utility model has the advantages of simple structure, reliable operation, high production efficiency and low manufacturing cost, and can meet the needs of mass production of plastic parts.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the top view of the structural diagram of the utility model;

In the figure: 1 movable mold seat plate, 2 support plate, 3 backing plate, 4 movable mold fixed plate, 5 fixed mold plate, 6 fixed mold seat plate, 7 upper core, 8 positioning ring, 9 sprue sleeve, 10 inclined Guide post, 11 wedge block, 12 side core, 13 stop pin, 14 slide block, 15 positioning pin, 16 core, 17 punch, 18 ejector rod, 19 fixed plate, 20 ejector plate.

Detailed ways

As shown in the figure, the structural scheme and working process of the utility model are further described in conjunction with examples.

As shown in Figure 1 and Figure 2, a secondary lateral core-pulling device for a plastic mold includes a movable mold seat plate 1, a support plate 2, a backing plate 3, a movable mold fixed plate 4, a fixed mold plate 5, a fixed mold Seat plate 6, upper core 7, positioning ring 8, sprue sleeve 9, inclined guide post 10, wedge block 11, side core 12, stop pin 13, slider 14, positioning pin 15, core 16, convex Die 17, ejector rod 18, fixed plate 19 and ejector plate 20, movable mold fixed plate 4 is fixed on the movable mold seat plate 1 with bolts through backing plate 3 and support plate 2, and ejector rod 18 is fixed on the top plate through fixed plate 19. On the output plate 20, the fixed plate 19 and the ejector plate 20 are arranged in the support plate 2, the fixed mold plate 5 is fixed on the fixed mold seat plate 6 by screws, and the upper core 7 is fixed on the fixed mold seat plate by the fixed mold plate 5 6, the sprue sleeve 9 is fixed on the fixed mold 5 and the fixed mold seat plate 6 through the positioning ring 8, the positioning ring 8 is fixed on the fixed mold seat plate 6 by screws, and the punch 17 is arranged in the fixed mold plate 5 and passed The movable mold fixed plate 4 is fixed on the backing plate 3, the core 16 is fixed on the backing plate 3 through the punch 17, the wedge block 11 is fixed on the side of the fixed mold seat plate 6 by screws, and the side core 12 is installed on the slide In the block 14, the side core 12 can also slide in the slide block 14. The slide block 14 is arranged on the side of the fixed mold plate 5, and the slide block 14 can slide on the fixed mold plate 5. Two inclined guide columns 10 are respectively arranged on the slide In the block 14 and the side core 12, the inclined guide post 10 can slide in the side core 12, the inclined guide post 10 is fixed on the fixed die seat plate 6 through the fixed die plate 5, and the stop pin 13 and the pressure spring are mounted on the slide block 14 and fixed by screws, positioning pin 15 and spring are contained on the movable die plate 4 and fixed by screws.

The working process of the present utility model is: the fixed mold part is fixedly connected with the injection molding machine through the fixed mold seat plate 6, and is positioned by the positioning ring 8. First, the clamping mechanism of the injection molding machine works to tightly compress the fixed plate 4 of the movable mold and the fixed plate 5, and then the injection molding machine uses the injection pressure of 120MPa to heat and evenly plasticize the plastic in the barrel of the injection molding machine, and pass through the sprue sleeve. 9 into the cavity. After the molten material cools to a certain strength in the mold, the clamping mechanism releases the pressure, the movable mold moves and begins to separate the molds, and at the same time, the side two-stage core pull is performed, and the lower side core 12 is driven by the inclined guide column 10 to move outward until it leaves the mold. The wall thickness of the side hole of the plastic part. At this time, the stop pin 13 also starts to work, and the inclined guide post 10 moves outward with the slider 14 and the side core 12 at the same time until the positioning pin 15 enters the second limit hole. , and then the push rod of the injection molding machine pushes the push plate 20, and the plastic part is ejected through the push rod 18 for demoulding. After the plastic part is demoulded, the ejector pin of the injection molding machine is retracted to restore the original state, and the molding is completed at one time.

Claims (3)

1, the secondary side core-pulling device of mould of plastics, comprise Bottom clamp plate, support plate, backing plate, centring ring, sprue bush, core, punch, push rod, fixed head and liftout plate, dynamic mould fixing plate is through backing plate, support plate is fixed by bolts on the Bottom clamp plate, push rod is fixed on the liftout plate with fixed head, fixed head and liftout plate are arranged in the support plate, the cover half template is fixed on the top clamping plate, last core is arranged on the cover half template, sprue bush is fixed on cover half template and the top clamping plate by centring ring, punch is arranged in the cover half template and by dynamic mould fixing plate and is fixed on the backing plate, core is fixed on the backing plate by punch, it is characterized in that, also comprise dynamic mould fixing plate, Angle Pin, the cover half template, top clamping plate, carve tight piece, side core, latch, slide block, alignment pin, carve tight piece and be fixed on the side of top clamping plate, side core is contained in the slide block, slide block is arranged on the side of cover half template, Angle Pin is arranged in slide block and the side core, Angle Pin is fixed on the top clamping plate by the cover half template, and Angle Pin is fixed on the cover half template.

2, the secondary side core-pulling device of mould of plastics as claimed in claim 1 is characterized in that described slide block is provided with latch and spring, and is fixed by screw.

3, the young secondary side core-pulling of mould of plastics as claimed in claim 1 device is characterized in that described dynamic mould fixing plate is provided with alignment pin and spring, and fixes by screw.

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