CN213107850U

CN213107850U - Double-color mold capable of optimizing appearance defects of double-color product

Info

Publication number: CN213107850U
Application number: CN202021055833.5U
Authority: CN
Inventors: 潘文豪
Original assignee: Varroc TYC Auto Lamps Co Ltd
Current assignee: Chongqing Damao Duiwixi Automotive Parts Co., Ltd.
Priority date: 2020-06-10
Filing date: 2020-06-10
Publication date: 2021-05-04
Anticipated expiration: 2030-06-10

Abstract

The utility model belongs to the technical field of the mould technique and specifically relates to a can optimize double-colored product appearance defect's double-colored mould, double-colored product includes first color injection molding and second color injection molding, the double-colored mould includes the movable mould, first cover half and second cover half, the movable mould is equipped with along the recess of sealing gluey inside concave yield in the gluey position of moulding plastics for the first time, first cover half has the boss that matches with the recess, make the second color injection molding form an outside bellied defect weakening portion at the position that the position of sealing glues that corresponds with the first time of moulding plastics. The utility model discloses a movable mould seals the glue position and has set up the recess for the first time of moulding plastics, makes the second colour injection molding form an outside bellied defect weakening portion at the position that seals the glue position and correspond with the first time of moulding plastics, and the bellied edge of defect weakening portion has certain refraction effect to light, can follow the apparent defect that weakens originally in the vision, makes original pockmark form impression not obvious in the vision, will be uncontrollable defect control in certain extent originally.

Description

Double-color mold capable of optimizing appearance defects of double-color product

Technical Field

The utility model belongs to the technical field of the mould technique and specifically relates to a can optimize double-colored product appearance defect's double-colored mould.

Background

The double-color mask mold for the tail lamp of the automobile lamp is a mold and a product with the highest difficulty coefficient and the highest appearance requirement of the automobile lamp mold, and the movable mold and the fixed mold are matched with sealing glue and are required to be attached together, so that a pit-shaped impression (shown in figure 7) easily appears in a sealing glue area formed by injection molding for the first time, and the pit-shaped impression cannot be accepted in the appearance of the automobile lamp and belongs to unqualified products. At present, various manufacturers can only match the mould as far as possible for the hemp point-shaped imprinting, and the problem cannot be thoroughly solved. Due to the uncontrollable nature of this problem, the yield of the dual color mask is reduced. Therefore, there is a need to provide a solution to the problem of the first-time molding compound area of the two-color product being prone to pock-like imprinting.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the problem of the easy pockmark form impression of gluing appears in the first time of moulding plastics for solving the double-colored product, the utility model provides a can optimize double-colored product appearance defect's double-colored mould, the movable mould of this double-colored mould has set up along the recess of gluing the inside concave yield of face at the gluey position of moulding plastics for the first time, first cover half has the boss that matches with the recess, make second color injection molding form an outside bellied defect weakening portion at the position that corresponds with the position of gluing that moulds plastics for the first time, this defect weakening portion itself is bellied, bellied edge has certain refraction effect to light, can weaken the original appearance defect in the vision, make pockmark form impression originally unobvious in the vision, will originally uncontrollable defect control in certain extent.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a can optimize double-colored product appearance defect's double-colored mould, the double-colored product includes first color injection molding and second color injection molding, the double-colored mould includes movable mould, first cover half and second cover half, the movable mould is equipped with along the recess of sealing the inside concave yield of face of gluing in the position of sealing glue of moulding plastics for the first time, first cover half has the boss that matches with the recess, makes the second color injection molding form an outside bellied defect weakening portion at the position that corresponds with the position of sealing glue of moulding plastics for the first time.

Specifically, the depth of the groove is 0.1-1 mm.

Specifically, the depth of the groove is 0.5 mm.

Specifically, the groove is provided with a first inclined surface inclined towards one side of the second injection molding part on one side close to the second injection molding part, so that a second inclined surface inclined towards one side of the first injection molding part is formed on the defect weakening part of the second injection molding part.

Specifically, the width of the bottom of the groove is 1-5 mm.

The utility model has the advantages that:

(1) the utility model discloses a movable mould of double-colored mould has set up along the recess of gluing the inside concave yield of face at the position of gluing of moulding plastics for the first time, first cover half has the boss that matches with the recess, make second colour injection molding form an outside bellied defect weakening portion at the position that corresponds with the position of gluing of moulding plastics for the first time, this defect weakening portion itself is bellied, bellied edge has certain refraction effect to light, can weaken original appearance defect from the vision, make original pockmark form impression not obvious in the vision, control uncontrollable defect originally in certain extent;

(2) the arrangement of the groove on the movable mold can effectively reduce the risk of flash caused by processing the impression;

(3) the first inclined surface on the groove can form a second inclined surface inclined towards one side of the first color injection molding part on the defect weakening part of the second color injection molding part, and a refraction surface is added, so that the defect concerned visually is further reduced.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the combination of the movable mold and the first fixed mold of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a schematic structural view of the combination of the movable mold and the second fixed mold of the present invention;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a schematic view of a groove portion on the movable mold;

FIG. 6 is a partial schematic view of a two-color product;

FIG. 7 is a schematic view of a second-color injection molded part of a prior art product showing pockmark-like impressions in the first-shot molding compound region;

FIG. 8 is a schematic view of a two-color product obtained by injection molding using the two-color mold of the present invention;

in the figure: 1. moving the mold; 11. a groove; 111. a first inclined plane; 2. a first stationary mold; 21. a boss; 3. a second stationary mold; 91. a first color injection molding; 92. a second color injection molded part; 921. a defect weakening section; 922. and a second inclined plane.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

The utility model provides a can optimize double-colored mould of double-colored product appearance defect, as shown in fig. 1-5, the double-colored product includes first color injection molding 91 and second color injection molding 92, the double-colored mould includes movable mould 1, first cover half 2 and second cover half 3, movable mould 1 is equipped with along the inside recessed recess 11 of the face of encapsulating at the position of encapsulating of first moulding plastics, first cover half 2 has the boss 21 with recess 11 matching, make second color injection molding 92 form a convex defect weak part 921 outside in the position that corresponds with the position of encapsulating of first moulding plastics. Because the defect weakening part 921 itself is outwardly convex, the convex edge has a certain refraction effect on light, and the original appearance defect can be weakened visually, so that the original pockmark-shaped impression is not obvious visually, and the original uncontrollable defect is controlled within a certain range.

In a particular embodiment, the depth of the grooves 11 is 0.1-1 mm.

In a particular embodiment, the depth of the groove 11 is 0.5 mm.

In a particular embodiment, as shown in fig. 2, 5 and 6, the recess 11 has a first chamfer 111 on the side close to the second color injection molded part 92, which is inclined toward the second color injection molded part 92, so that a second chamfer 922, which is inclined toward the first color injection molded part 91, is formed on the defective weakened portion 921 of the second color injection molded part 92. Bevel two 922 adds a refracting surface to further reduce visually interesting defects.

In a particular embodiment, the width of the bottom of the groove 11 is 1-5 mm.

In the embodiment, the width of the bottom of the groove 11 is consistent with the width of the molding compound region, depending on the width of the molding compound region.

As shown in fig. 8, the two-color product manufactured by the two-color mold of the present invention has no obvious pockmark-like impression in the molding area, and the improvement effect is very obvious compared with fig. 7.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A double-color mold capable of optimizing appearance defects of a double-color product, wherein the double-color product comprises a first color injection molding part (91) and a second color injection molding part (92), the double-color mold comprises a moving mold (1), a first fixed mold (2) and a second fixed mold (3), and is characterized in that: the movable mould (1) is provided with a groove (11) which is concave inwards along the glue sealing surface at the glue sealing position of the first injection molding, the first fixed mould (2) is provided with a boss (21) matched with the groove (11), and the second color injection molding part (92) forms an outwards convex defect weakening part (921) at the position corresponding to the glue sealing position of the first injection molding.

2. The bi-color mold for optimizing the appearance defects of a bi-color product of claim 1, wherein: the depth of the groove (11) is 0.1-1 mm.

3. The bi-color mold for optimizing appearance defects of bi-color products of claim 2, wherein: the depth of the groove (11) is 0.5 mm.

4. The bi-color mold for optimizing the appearance defects of a bi-color product of claim 1, wherein: the groove (11) is provided with a first inclined surface (111) which inclines towards one side of the second injection molding part (92) on the side close to the second injection molding part (92), so that a second inclined surface (922) which inclines towards one side of the first injection molding part (91) is formed on the defect weakening part (921) of the second injection molding part (92).

5. The bi-color mold for optimizing the appearance defects of a bi-color product of claim 1, wherein: the width of the bottom of the groove (11) is 1-5 mm.