Injection mold slider bump type automatic cutting glue outlet mechanism

Abstract

The invention discloses an automatic glue outlet cutting mechanism of a slider of an injection mold, comprising a mold core plate, an injection molded product on the core plate, and glue outlet residual material on the product, an assembly groove and an air avoidance groove are arranged on the core plate corresponding to the glue outlet residual material, an outer slider is arranged in the assembly groove, an inner convex block is arranged in the outer slider, the front end of the inner convex block is connected to the cut block, and the cut block corresponds to the glue outlet residual material, an inclined guide hole is arranged in the outer slider, a delay guide hole is arranged in the inner convex block, an inclined guide column passes through the inclined guide hole and the delay guide hole and extends into the air avoidance groove, a toggle block is arranged on both sides of the inner convex block, a compression spring is installed in the toggle block, the compression spring is pressed on a cover plate, and the cover plate is fixed on the side wall of the inner convex block, a linkage slot is arranged on the inclined guide column, and the head of the toggle block protrudes into the delay guide hole and cooperates with the linkage slot.

Description

Technical Field

[0001] The invention relates to a convex point type automatic glue cutting mechanism for a slider of an injection mold, belonging to the field of injection molds. Background Art

[0002] Plastic products such as automobile door panel interior decoration are produced by injection molds. According to the product appearance and structure analysis, such products have high requirements for appearance. However, injection molds have a glue mouth after the product is formed. Traditional molds are manually sheared off after the product is demoulded. There is often a large white mark at the glue mouth, which affects the product appearance. In addition, manual shearing is inefficient, labor costs are high, and the quality is uneven. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and to provide an injection mold slider convex point automatic glue cutting mechanism which uses an inclined guide column to delay the toggle to drive the convex block to automatically cut the glue outlet.

[0004] The technical scheme of the convex point automatic cutting-off glue outlet mechanism of the slider of the injection mold of the present invention is: it includes a mold core plate, the core plate has an injection molded product, and the product has glue outlet residual material, which is characterized in that an assembly groove and a void-avoiding groove are arranged on the core plate corresponding to the glue outlet residual material, an outer slider is arranged in the assembly groove, an inner convex block is arranged in the outer slider, the front end of the inner convex block is connected to the cut block, and the cut block corresponds to the glue outlet residual material, an inclined guide hole is arranged in the outer slider, a delay guide hole is arranged in the inner convex block, an inclined guide column passes through the inclined guide hole and the delay guide hole and extends into the void-avoiding groove, a toggle block is arranged on both sides of the inner convex block, a compression spring is installed in the toggle block, the compression spring is pressed on the cover plate, the cover plate is fixed on the side wall of the inner convex block, a linkage slot is arranged on the inclined guide column, and the head of the toggle block protrudes into the delay guide hole and cooperates with the linkage slot.

[0005] The invention discloses an injection mold slider convex point type automatic glue mouth cutting mechanism, wherein the inclined guide column is connected to the cavity plate of the mold, when the mold is opened, the core plate is separated from the cavity plate, the inclined guide column is connected to the cavity plate and does not move, and drives the outer slider and the inner convex block to slide outward through the inclined guide hole, but in actual operation, since the inner convex block is simultaneously provided with a delay guide hole, the outer slider slides outward first, and the inner convex block does not move first, and the linkage card slot on the inclined guide column interferes with the toggle block, drives the toggle block, and causes the toggle block to drive the inner convex block to slide inward, and finally causes the cutting block at the front end of the inner convex block to slide inward, cuts off the gate residual material, and achieves the purpose of automatic glue mouth cutting, at this time, the delay guide hole in the inner convex block just contacts the inclined guide column, and under the force of the mold continuing to open the mold, drives the outer slider and the inner convex block to slide outward and demould together. The internal structure design of this scheme is ingenious and the assembly is compact, especially the setting of the linkage card slot and the toggle block, which realizes the automatic cutting of the glue mouth residual material, and no longer needs to manually cut the glue mouth, thereby reducing production costs and improving production efficiency.

[0006] The injection mold slider of the present invention has a convex point automatic glue-cutting mechanism, wherein a buffer spring is arranged at the front end of the inner convex block, and the buffer spring abuts against the outer slider to prevent the inner convex block from being damaged by violent collision with the outer slider. An auxiliary spring is arranged at the front end of the outer slider, and the auxiliary spring abuts against the core plate to assist the outer slider in sliding outward. A stopper is arranged at the rear end of the outer slider, and the stopper cooperates with the inner convex block, and the stopper has a blocking effect on the inner convex block to prevent the inner convex block from falling off the outer slider. A limit block is arranged on the core plate, and the limit block cooperates with the rear end bottom of the outer slider, and the limit block has a limiting effect on the outer slider to prevent the outer slider from sliding outward excessively. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic diagram of the structure of the automatic glue-cutting mechanism of the present invention;

[0008] Figure 2 It is a schematic diagram of the automatic glue-cutting mechanism of the present invention being installed on a core plate;

[0009] Figure 3 It is a schematic diagram of the cooperation between the oblique guide column and the inner convex block of the present invention;

[0010] Figure 4 It is a schematic diagram of the separated state of the inclined guide column and the inner protrusion of the present invention. DETAILED DESCRIPTION

[0011] The present invention relates to an injection mold slider convex point type automatic glue cutting mechanism. Figure 1 — Figure 4As shown, it includes a mold core plate 1, an injection molded product 2 is arranged on the core plate, and there is a glue port residue 3 on the product 2. An assembly groove 5 and an air avoidance groove 6 are arranged on the core plate 1 corresponding to the glue port residue, an outer slider 7 is arranged in the assembly groove, an inner convex block 8 is arranged in the outer slider, the front end of the inner convex block is connected to a cut block 9, and the cut block 9 corresponds to the glue port residue 3. An inclined guide hole 10 is arranged in the outer slider 7, a delay guide hole 11 is arranged in the inner convex block 8, an inclined guide column 12 passes through the inclined guide hole 10 and the delay guide hole 11 and extends into the air avoidance groove 6, a toggle block 15 is arranged on both sides of the inner convex block 8, a compression spring 16 is installed in the toggle block, the compression spring is pressed on the cover plate 14, and the cover plate is fixed on the side wall of the inner convex block, a linkage slot 17 is arranged on the inclined guide column 12, and the head of the toggle block 15 protrudes into the delay guide hole 11 and cooperates with the linkage slot 17. The inclined guide column 12 is connected to the cavity plate of the mold. When the mold is opened, the core plate 1 is separated from the cavity plate, and the inclined guide column 12 is connected to the cavity plate and does not move, and drives the outer slider 7 and the inner convex block 8 to slide outward through the inclined guide hole 10. However, in actual operation, since the delay guide hole 11 is also formed in the inner convex block 8, the outer slider 7 slides outward first, and the inner convex block does not move first, and the linkage slot 17 on the inclined guide column 12 interferes with the toggle block 15, driving the toggle block 15, and causing the toggle block 15 to drive the inner convex block 8 to slide inward, and finally causing the cutting block 9 at the front end of the inner convex block 8 to slide inward, cutting off the gate residual material 3, and achieving the purpose of automatic glue cutting. At this time, the delay guide hole 11 in the inner convex block 8 just contacts the inclined guide column 12, and under the force of the mold continuing to open the mold, the outer slider 7 and the inner convex block 8 are driven to slide outward and demold together. The internal structure of this scheme is cleverly designed and compactly assembled, especially the setting of the linkage slot and the toggle block, which can realize automatic cutting of the excess material of the glue port, and no longer need to manually cut the glue port, thereby reducing production costs and improving production efficiency. A buffer spring 18 is set at the front end of the inner convex block 8, and the buffer spring 18 is against the outer slider 7 to prevent the inner convex block from being damaged by violent collision with the outer slider. An auxiliary spring 19 is set at the front end of the outer slider 7, and the auxiliary spring 19 is against the core plate 1 to assist the outer slider to slide outward. A stopper 20 is set at the rear end of the outer slider 7, and the stopper 20 cooperates with the inner convex block 8. The stopper has a blocking effect on the inner convex block to prevent the inner convex block from slipping out of the outer slider. A limit block 21 is set on the core plate 1, and the limit block 21 cooperates with the rear end bottom of the outer slider 7. The limit block has a limiting effect on the outer slider to prevent the outer slider from sliding outward excessively. 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

1. A slider convex point type automatic glue outlet cutting mechanism for an injection mold, comprising a core plate (1) of a mold, an injection molded product (2) on the core plate (1), and glue outlet residual material (3) on the product (2), characterized in that An assembly groove (5) and an air avoidance groove (6) are arranged on the core plate (1) corresponding to the glue port residual material, an outer slider (7) is arranged in the assembly groove, an inner convex block (8) is arranged in the outer slider (7), a front end of the inner convex block (8) is connected to a cut block (9), the cut block (9) corresponds to the glue port residual material (3), an oblique guide hole (10) is arranged in the outer slider (7), a delay guide hole (11) is arranged in the inner convex block (8), an oblique guide column (12) passes through the oblique guide hole (10) and the delay guide hole (11) and extends into the air avoidance groove (6), a toggle block (15) is arranged on both sides of the inner convex block (8), a compression spring (16) is installed in the toggle block (15), the compression spring is pressed on the cover plate (14), and the cover plate (14) is fixed to the inner convex block (8). On the side wall, a linkage slot (17) is provided on the inclined guide column (12), and the head of the toggle block (15) protrudes into the delay guide hole (11) and cooperates with the linkage slot (17). The inclined guide column (12) is connected to the cavity plate of the mold. When the mold is opened, the core plate (1) is separated from the cavity plate, and the inclined guide column (12) is connected to the cavity plate and does not move, and drives the outer slider (7) to slide outward first through the inclined guide hole (10), and the inner convex block (8) does not move first, and the linkage slot (17) on the inclined guide column (12) interferes with the toggle block (15), drives the toggle block (15), and causes the toggle block (15) to drive the inner convex block (8) to slide inward, so that the cutting block (9) at the front end of the inner convex block (8) slides inward, cutting off the gate residual material (3).

2. The injection mold slider convex point automatic cutting and dropping glue outlet mechanism as claimed in claim 1, characterized in that A buffer spring (18) is provided at the front end of the inner protrusion (8), and the buffer spring (18) abuts against the outer sliding block (7).

3. The injection mold slider convex point automatic cutting and dropping glue outlet mechanism as claimed in claim 1, characterized in that An auxiliary spring (19) is arranged at the front end of the outer sliding block (7), and the auxiliary spring (19) abuts against the core plate (1).

4. The injection mold slider convex point type automatic glue cutting mechanism according to claim 1, characterized in that A stopper (20) is provided at the rear end of the outer sliding block (7), and the stopper (20) cooperates with the inner protrusion (8).

5. The injection mold slider convex point 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) matches with the rear end bottom of the outer sliding block (7).

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