CN110861274A - Automatic gate mechanism that surely falls of injection mold slider bump formula - Google Patents

Abstract

The injection mold slider bump type automatic cutting and dropping mechanism, including the mold core plate, there are injection molded products on the core plate, and there is a residual material on the product, and the core plate corresponding to the residual material in the plastic opening An assembly groove and an empty groove are arranged on the upper part, an outer slider is arranged in the assembly slot, an inner bump is arranged in the outer slider, and the front end of the inner bump is connected to a cut block. The inclined guide hole, the delay guide hole is arranged in the inner bump, the inclined guide post passes through the inclined guide hole and the delay guide hole and extends into the hollow groove, and the two sides of the inner bump are provided with toggle blocks, A compression spring is installed in the toggle block, the compression spring is placed on the cover plate, and the cover plate is fixed on the side wall of the inner bump. hole, and match with the linkage card slot.

Description

Injection mold slider bump type automatic cutting and dropping mechanism

technical field

The invention relates to an injection mold sliding block convex point type automatic glue cutting mechanism, which belongs to the field of injection molds.

Background technique

Plastic products are produced by injection molds, such as interior trim parts of automobile door panels. According to the analysis of product shape and structure, such products have high requirements for shape, but injection molds have plastic openings after the product is formed. Traditional molds are used when the product is demolded. Then it is cut off by manual cutting, and there is often a large white mark at the cutting place of the rubber mouth, which affects the appearance of the product. In addition, the manual shearing efficiency is low, the labor cost is high, and the quality is uneven.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the shortcomings of the prior art, and to provide an injection mold sliding block bump-type automatic glue-cutting mechanism which adopts the time-delayed toggle of the inclined guide post to drive the bumps to automatically cut the glue-off.

The technical scheme of the injection mold slider bump type automatic cutting and dropping mechanism of the glue hole of the present invention is: including a mold core plate, the core plate has an injection-molded product, and the product has a residual material of the glue mouth, and it is characterized in that the The core plate corresponding to the residual material of the glue port is provided with an assembly groove and a void-avoiding groove, an outer slider is set in the assembly groove, an inner bump is set in the outer slide block, and the front end of the inner bump is connected to the cutting block, and the cutting block is connected to the residual material of the glue port. Correspondingly, an inclined guide hole is set in the outer slider, a delay guide hole is set in the inner bump, and the inclined guide post passes through the inclined guide hole and the delay guide hole and extends into the hollow groove, and the inner bump is set. There are toggle blocks on both sides of the toggle block, and a compression spring is installed in the toggle block. The compression spring is placed on the cover plate, and the cover plate is fixed on the side wall of the inner bump. The head of the moving block protrudes into the delay guide hole and matches with the linkage card slot.

The invention discloses an injection mold sliding block convex type automatic cutting and dropping mechanism. The inclined guide column is connected to the cavity plate of the mold. When the mold is opened, the core plate and the cavity plate are separated, and the inclined guide column is It is connected to the cavity plate and does not move, and drives the outer slider and the inner bump to slide outward through the inclined guide hole. However, in actual operation, because the delay guide hole is formed in the inner bump at the same time, the outer slider goes outside first. When sliding, the inner bump does not move first, and the linkage slot on the inclined guide post interferes with the toggle block, driving the toggle block, and the toggle block drives the inner bump to slide inward, and finally makes the front end of the inner bump slide. The cutting block slides inward to cut off the remaining material at the gate to achieve the purpose of automatic cutting. At this time, the delay guide hole in the inner bump is just in contact with the inclined guide post. Under the force of the mold continuing to open the mold, it drives the The outer sliding block and the inner bump are slid out of the mold together. The internal structure of this scheme is ingeniously designed and the assembly is compact, especially the setting of the linkage card slot and the toggle block, realizes the automatic cutting of the residual material of the glue mouth, no need to manually cut the glue mouth, reduces the production cost and improves the production efficiency.

In the injection mold slider bump type automatic cutting and dropping mechanism, the front end of the inner bump is provided with a buffer spring, and the buffer spring is pressed against the outer slider to prevent the inner bump and the outer slider from being damaged due to violent collision. The front end of the outer slider is provided with an auxiliary spring, and the auxiliary spring is pressed against the core plate, which can assist the outer sliding of the outer slider. The rear end of the outer slide block is provided with a block, which is matched with the inner convex block, and the block blocks the inner convex block to prevent the inner convex block from falling out of the outer sliding block. A limit block is arranged on the core plate, the limit block is matched with the bottom of the rear end of the outer slider, and the limit block acts as a limiter for the outer slider to prevent the outer slider from sliding outwards.

Description of drawings

Fig. 1 is the structure schematic diagram of automatic cutting and dropping glue port mechanism of the present invention;

Fig. 2 is the schematic diagram that the automatic cutting and dropping glue opening mechanism of the present invention is installed on the core plate;

3 is a schematic diagram of the cooperation between the inclined guide post and the inner bump of the present invention;

FIG. 4 is a schematic diagram of the separate state of the inclined guide post and the inner bump of the present invention.

Detailed ways

The present invention relates to an injection mold slider bump type automatic cutting and dropping mechanism, as shown in Figures 1 to 4, comprising a mold core plate 1, an injection-molded product 2 on the core plate, and a product 2 on the Residual material 3 of the glue opening, an assembly groove 5 and an escape groove 6 are arranged on the core plate 1 corresponding to the residual material of the glue mouth, an outer slider 7 is arranged in the assembly groove, an inner convex block 8 is arranged in the outer slider, and the inner The front end of the protruding block is connected to the cutting block 9, and the cutting block 9 corresponds to the residual material 3 of the glue opening. An oblique guide hole 10 is set in the outer slider 7, a delay guide hole 11 is set in the inner bump 8, and the oblique guide post 12 passes through. The oblique guide hole 10 and the time delay guide hole 11 extend into the avoidance groove 6. Toggle blocks 15 are arranged on both sides of the inner bump 8, and a compression spring 16 is installed in the toggle block, and the compression spring is pressed against the cover. On the plate 14, the cover plate is fixed on the side wall of the inner bump, the said inclined guide post 12 is provided with a linkage slot 17, the head of the toggle block 15 protrudes into the delay guide hole 11, and is connected with the linkage slot 17. 17 to match. The inclined guide posts 12 are connected to the cavity plate of the mold. When the mold is opened, the core plate 1 is separated from the cavity plate. The slider 7 and the inner bump 8 slide outward, but in actual operation, since the delay guide hole 11 is formed in the inner bump 8 at the same time, the outer slider 7 slides outward first, the inner bump does not move first, and the inclined The interlocking slot 17 on the guide post 12 interferes with the toggle block 15, drives the toggle block 15, and makes the toggle block 15 drive the inner bump 8 to slide inward, and finally the cutting block 9 at the front end of the inner bump 8 moves toward the inner bump 8. Sliding inside to cut off the remaining material 3 of the gate to achieve the purpose of automatic rubber cutting. At this time, the delay guide hole 11 in the inner bump 8 is just in contact with the inclined guide post 12. Under the force of the mold continuing to open the mold, Drive the outer sliding block 7 and the inner convex block 8 to slide out of the mold together. The internal structure of this scheme is ingeniously designed, and the assembly is compact, especially the setting of the linkage card slot and the toggle block, which can automatically cut off the residual material of the glue opening, without the need for manual cutting of the glue opening, reducing production costs and improving production efficiency. The front end of the inner bump 8 is provided with a buffer spring 18, and the buffer spring 18 abuts on the outer slider 7 to prevent the inner bump and the outer slider from being damaged due to violent collision. The front end of the outer slider 7 is provided with an auxiliary spring 19, and the auxiliary spring 19 abuts on the core plate 1, which can assist the outer slider to slide outward. The rear end of the outer slider 7 is provided with a stopper 20, the stopper 19 cooperates with the inner projection 8, and the stopper blocks the inner projection to prevent the inner projection from falling out of the outer slider. The core plate 1 is provided with a limit block 21, the limit block 21 is matched with the bottom of the rear end of the outer slider 7, and the limit block acts as a limiter for the outer slider to prevent the outer slider from sliding outward. When the mold is closed, there is also a locking module 22 connected to the mold cavity plate to lock the outer slider 7 to prevent the outer slider from expanding.

Claims (5)

1. The injection mold slider bump type automatic cutting and dropping mechanism, including the mold core plate (1), the injection molding product (2) on the core plate, and the residual material (3) on the product (2) ), which is characterized in that an assembly groove (5) and an escape groove (6) are arranged on the core plate (1) corresponding to the residual material of the glue opening, and an outer slider (7) is arranged in the assembly groove, and the outer slider Set the inner bump (8), the front end of the inner bump is connected to the cutting block (9), the cutting block (9) corresponds to the residual material (3) of the glue opening, and the inclined guide hole (10) is set in the outer slider (7). , a time delay guide hole (11) is set in the inner bump (8), and the inclined guide post (12) passes through the inclined guide hole (10) and the time delay guide hole (11) and extends into the avoidance groove (6) , a toggle block (15) is provided on both sides of the inner bump (8), a compression spring (16) is installed in the toggle block, the compression spring is placed on the cover plate (14), and the cover plate is fixed to the inner bump On the side wall of the slanted guide post (12), a linkage card slot (17) is provided, and the head of the toggle block (15) protrudes into the delay guide hole (11), and is connected with the linkage card slot (17). match. 2. The injection mold sliding block bump type automatic glue cutting mechanism according to claim 1, characterized in that the front end of the inner bump (8) is provided with a buffer spring (18), and the buffer spring (18) abuts outside on the slider (7). 3. The injection mold sliding block convex point type automatic glue cutting mechanism according to claim 1, characterized in that the front end of the outer sliding block (7) is provided with an auxiliary spring (19), and the auxiliary spring (19) abuts against on the core plate (1). 4. The injection mold sliding block convex point type automatic glue cutting mechanism according to claim 1, characterized in that the rear end of the outer sliding block (7) is provided with a stopper (20), a stopper (19) Match with the inner bump (8). 5. The injection mold sliding block bump-type automatic glue-cutting mechanism according to claim 1, characterized in that a limit block (21) is provided on the core plate (1), and the limit block (21) Match with the bottom of the rear end of the outer slider (7).

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