CN202088412U - Mold exit mechanism - Google Patents

Abstract

The utility model discloses a mold withdrawing mechanism, which comprises a lower movable mold plate and an upper movable mold plate superposed on the lower movable mold plate, wherein the upper movable mold plate is provided with a movable mold core with an inclined trip, the lower movable mold plate is provided with a sliding component which is connected with the inclined trip on the movable mold core and can drive the inclined trip to return to the movable mold core along the inclination of the inclined trip; the utility model has the advantages of reasonable design, utilize and be equipped with the spout unanimous with oblique trip mold insert inclination on the mould core, in the die sinking process, the lower movable mould board can drive oblique trip mold insert through the slip subassembly and move to the direction of keeping away from the direction of shaping plastic product barb and keeping away from shaping plastic product inclined plane direction, realize that the oblique trip on the movable mould core withdraws from the trip design department of product smoothly fast, avoid appearing pulling or fish tail product, guarantee product quality; in addition, the whole structure is simple, the die is suitable for various dies, the die structure is effectively simplified, the design time and the processing time of the die are reduced, the die opening period is shortened, and the die cost is reduced.

Description

Mold exit mechanism

technical field

The utility model relates to the technical field of molds, in particular to a mold withdrawal mechanism.

Background technique

Mold is an indispensable and important equipment in injection molding. Injection molding is a method of injecting hot-melt plastic material into a closed molding space with the desired shape in the mold at high speed, and after the plastic material cools and solidifies, the mold is opened to eject the solidified plastic processed product to obtain a molded product. . Since the injection molding method has the characteristics of low molding cost, short molding cycle, simple molding process, and easy molding of plastic products with complex shapes, it is widely used in the field of plastic product manufacturing.

With the continuous improvement of the level of science and technology, people have stricter requirements on the appearance quality of products. In the process of plastic mold design, the ejection direction of the product is usually consistent with the mold opening direction, but many times the product has an oblique hook in the mold fixing direction, and the demoulding direction at this position is inconsistent with the mold opening direction, and the mold cannot be demolded normally. Therefore, it is necessary to do mold slider or inclined top block core pulling to be able to demould normally. However, the core-pulling structure of the existing inclined top block is complex, resulting in complex mold structure, bulky volume, high processing cost, cumbersome installation, and poor stability.

Utility model content

The purpose of this utility model is to provide a simple and reliable structure, which will not strain the product, and realize the smooth and fast withdrawal of the oblique hook from the hook design of the product.

In order to achieve the above object, the technical solution provided by the utility model is:

A mold exit mechanism, which includes a lower movable template and an upper movable template stacked on the lower movable template, the upper movable template is provided with a movable mold core with an oblique hook, and the lower movable template is provided with There is a sliding component that is connected with the oblique hook on the movable mold core and can drive the oblique hook to return to the movable mold core along its inclination. Reasonable structure, easy to process and reduce cost.

The moving mold core includes a slanting hook insert and a mold core part. A chute matching the profile of the slanting hook insert is provided on the mold core, and the chute and the slanting hook The inclinations of the inserts are consistent, and the inclined hook insert is inserted on the slide groove and can slide up and down.

The sliding assembly includes a slider, the bottom of which is fixed on the lower movable formwork, the top is provided with a slide rail, and corresponding to the bottom of the oblique hook insert, a guide groove matching the slide rail is provided .

The cross section of the slide rail is dovetail-shaped, T-shaped or L-shaped. Stable cooperation, high reliability and long service life.

The beneficial effects of the utility model are as follows: the utility model has a reasonable structural design, and utilizes a chute on the mold core that is consistent with the inclination of the oblique hook insert. During the mold opening process, the lower movable template can be driven by the sliding assembly The oblique hook insert moves away from the undercut of the molded plastic product and away from the slope of the molded plastic product, so that the oblique hook on the movable mold core can withdraw smoothly and quickly from the hook design of the product, avoiding strain or scratches products, to ensure product quality; in addition, the overall structure is simple, applicable to a variety of molds, and effectively simplifies the mold structure, reduces the design time and processing hours of the mold, shortens the mold opening cycle, and reduces the mold cost.

Below in conjunction with accompanying drawing and embodiment, the utility model is further described.

Description of drawings

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

Fig. 2 is the enlarged schematic view of the partial A structure in Fig. 1;

Fig. 3 is a schematic structural diagram of the sliding assembly in Fig. 1 .

Detailed ways

Referring to Fig. 1, Fig. 2 and Fig. 3, a mold exit mechanism provided in this embodiment includes a lower movable template 1 and an upper movable template 2 stacked on the lower movable template 1, on which the upper movable template 2 There is a movable mold core 3 with an inclined hook 5, and the lower movable template 1 is provided with an inclined hook connected with the movable mold core 3, and can drive the inclined hook 5 to return along its slope Slide assembly 4 inside moving core 3. Reasonable structure, easy to process and reduce cost.

The movable mold core 3 includes an inclined hook insert 31 and a mold core part 32, and the mold core part 32 is provided with a chute matching with the profile of the inclined hook insert 31, and the chute and The inclinations of the oblique hook inserts 31 are consistent, and the oblique hook inserts 31 are inserted on the chute and can slide up and down.

The sliding assembly 4 includes a slider 41, the bottom of which is fixed on the lower template 1, the top is provided with a slide rail 42, and the bottom corresponding to the inclined hook insert 31 is provided with the slide rail 42 Compatible guide groove 33.

In this embodiment, the cross section of the slide rail 42 is T-shaped, with stable fit, high reliability and long service life. In other embodiments, the slide rail 42 can be designed as a dovetail or L-shaped cross section.

During the mold opening process, the lower movable template 1 drives the slider 41 to move downward, and the movable slider 41 matches the guide groove 33 on the inclined hook insert 31 through the slide rail 42 on it, thereby driving The oblique hook insert 31 moves downward. However, under the limit action of the chute with the same inclination, the inclined hook insert 31 can only move away from the barb direction of the formed plastic product and away from the slope of the formed plastic product, that is, to realize the moving mold core 3. The oblique hook 5 withdraws smoothly and quickly from the hook design of the product, avoiding scratches or scratches on the product, and ensuring product quality; in addition, the overall structure is simple, applicable to a variety of molds, and effectively simplifies the mold structure and reduces the cost of the mold. Design time and processing man-hours shorten the mold opening cycle and reduce mold costs.

As described in the above-mentioned embodiments of the present utility model, withdrawal mechanisms of other structures obtained by adopting the same or similar structures are all within the protection scope of the present utility model.

Claims (4)

1. A mold withdrawal mechanism, which comprises a lower movable template and an upper movable template superimposed on the lower movable template, it is characterized in that, the upper movable template is provided with a movable mold core with an oblique hook, so The lower movable template is provided with a sliding assembly connected with the oblique hook on the movable mold core and capable of driving the oblique hook to return to the movable mold core along its slope. 2. The mold ejection mechanism according to claim 1, characterized in that: the movable mold core includes an oblique hook insert and a mold core part, and the mold core part is provided with an outline similar to that of the oblique hook insert. The chute is compatible with the slope of the slant hook insert, and the slant hook insert is inserted on the chute and can slide up and down. 3. The mold ejection mechanism according to claim 2, characterized in that: the sliding assembly includes a slider, the bottom of which is fixed on the lower moving template, and the top is provided with a slide rail corresponding to the inclined card The bottom of the hook insert is provided with a guide groove suitable for the slide rail. 4. The mold ejection mechanism according to claim 3, characterized in that: the cross-section of the slide rail is dovetail, T-shaped or L-shaped.

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