CN203449551U

CN203449551U - Pouring gate structure of injection molding mold

Info

Publication number: CN203449551U
Application number: CN201320514117.2U
Authority: CN
Inventors: 陈晓冬; 陈处兵; 黄云洁; 杜绍影
Original assignee: Yanfeng Visteon Jinqiao Automotive Trim Systems Co Ltd
Current assignee: Yanfeng Visteon Jinqiao Automotive Trim Systems Co Ltd
Priority date: 2013-08-21
Filing date: 2013-08-21
Publication date: 2014-02-26
Anticipated expiration: 2023-08-21

Abstract

The utility model provides a pouring gate structure of an injection molding mold. The mold comprises a fixed mold plate and a moving mold plate which are arranged oppositely, and a mold cavity is formed between the fixed mold plate and the moving mold plate, wherein the pouring gate structure comprises a feed pouring gate section and an extending section communicated between the feed pouring gate section and one end of the mold cavity, and the extending section and the mold cavity are matched in size and are aligned axially; the feed pouring gate section and the extending section are mutually perpendicular. The pouring gate structure of the injection molding mold provided by the utility model can be used for changing the feeding direction of flow materials, thereby preventing the product appearance defect caused by nonuniform flow material distribution and the corrosion effect to the mold by flow materials.

Description

A kind of pouring gate structure of injection mold

Technical field

The utility model relates to injection mold field, relates in particular to a kind of pouring gate structure of injection mold.

Background technology

Injection mold, in production for example containing in the process of glass fiber reinforced materials product, is often used the conventional pouring gate structures such as side gate, spot pouring mouth at present.In order to reduce the shearing effect at cast gate place, guarantee glass being uniformly distributed in product, thereby avoid product to occur larger distortion, warpage, conventionally adopt the mode of single increase cast gate thickness, maximum cast gate thickness is 0.6-0.7 product wall thickness doubly, because blocked up by defects such as reprinting books in a reduce format appear in the appearance that causes product.But, single increase cast gate thickness will make the distributing homogeneity of glass can not reach the most rational state, as illustrated in fig. 1 and 2, side gate 6 ' is arranged in the position of mold cavity 3 ' between solid plate 1 ' and moving platen 2 ' and close, that is, be arranged on built-in of contiguous one end of product 8 '.When glass stream material enters mold cavity 3 ' by side gate 6 ' along the direction of arrow, need first break through the cured layer 4 ' near moving platen 2 ' one side, thereby it is chaotic that the glass that easily causes uncured layer 5 ' front end distributes, cause product 8 ' to occur the defects such as distortion, warpage.Meanwhile, because glass stream material has certain corrosiveness to mould itself, thereby locate easily to cause the profile corrosion of mould recessed at side gate 6 ', thereby cause product to occur open defect.

Utility model content

For above-mentioned the deficiencies in the prior art, the utility model provides a kind of pouring gate structure that can change the injection mold of stream material approach axis, to avoid occurring that stream material skewness and stream material produce to mould the product appearance defect that corrosiveness was caused.

To achieve these goals, the utility model adopts following technical scheme:

A kind of pouring gate structure of injection mold, this mould comprises solid plate and the moving platen being oppositely arranged, and between this solid plate and moving platen, be formed with a mold cavity, wherein, this pouring gate structure comprises into cast gate section and and is communicated with the extension entered between cast gate section and one end of described mold cavity described, and described extension is mated and axially aligns with described mold cavity is big or small.

Further, described in, enter cast gate section mutually vertical with described extension.

In sum, the utility model is by increasing the extension of mating and axially aligning with mold cavity size, changed the approach axis of stream material, make stream material need not break through cured layer when entering mold cavity, thereby it is chaotic that the stream material that can not cause uncured layer front end distributes, thereby can distribute more equably and be orientated consistent at interiors of products.In addition, owing to having increased this extension, even if stream material has produced corrosiveness at place, extension to die face, also can not affect the outward appearance of product, because this extension finally can be removed, can not produce any impact to product.And when product stripping, the extension of increase is equivalent to extend pruning space, is more convenient to the cut operation of product.

Accompanying drawing explanation

Fig. 1 is the position view of the side gate structure of prior art;

Fig. 2 is the structural representation of the side gate structure of prior art;

Fig. 3 is the position view of the pouring gate structure of the utility model injection mold;

Fig. 4 is the partial cutaway diagram of the pouring gate structure of the utility model injection mold.

The specific embodiment

Below with reference to the accompanying drawings, provide preferred embodiment of the present utility model, and be described in detail, enable to understand better function of the present utility model, feature.

Fig. 3 and 4 shows an embodiment of the pouring gate structure of injection mold of the present utility model, this mould comprises solid plate 1 and the moving platen 2 being oppositely arranged, and between this solid plate 1 and moving platen 2, be formed with a mold cavity 3, wherein, this pouring gate structure comprises described in being connected to into cast gate section 9 and and enters the extension 7 between cast gate section 9 and one end of described mold cavity 3, and described extension 7 axially stretches out and mates with these mold cavity 3 sizes from described mold cavity 3, that is, extension 7 equates and axially aligns with product 8 wall thickness of injection mo(u)lding.In the present embodiment, as shown in Figure 3, described in enter cast gate section 9 and vertically arrange with respect to described extension 7.

As shown in Figure 4, because stream material injects along the direction of arrow from a side of product 8, make stream material can not break through cured layer 4 when entering mold cavity 3, it is chaotic that thereby the stream material that can not cause uncured layer 5 front end distributes, and can not cause the appearance of product 8 and the current mark that built-in face has injection moulding, therefore, make the smooth surface, smooth of product 8, guaranteed the good looking appearance of product 8.

For the ease of understanding, extension 7 and the coupling part of product 8 are defined as to empty cast gate 10, by entering cast gate section 9, be defined as real cast gate 11 with the coupling part of extension 7, by adjusting the thickness thickness of mold cavity length direction (along) of empty cast gate 10 or real cast gate 11, just can increase technique of the present utility model and adjust space, thereby provide advantage for improving the product defects that material, mould and equipment fluctuation cause.

In the utility model, if extension 7 is not set, enter cast gate section 9 will with direct vertical being connected of product 8, causing flowing material can impact with the junction of product 8 entering cast gate section 9, thereby bring the problem of the die face of this junction of corrosion, and then cause the many glue of product or overlap herein.After having increased extension 7, even if 7 places have produced corrosiveness to die face to stream material in extension, also can not affect the outward appearance of product 8, because this extension 7 finally can be removed, can not produce any impact to product 8.

In addition, if extension 7 is not set, enter cast gate section 9 will with direct vertical being connected of product 8, the pouring gate structure of this kind of form is not easy to repair and removes, product 8 also easily has damage after pruning,, brings difficulty in the time of can giving the final product demoulding that is.After having increased extension 7, be equivalent to extend pruning space, be more convenient to the cut operation of product 8.

Above-described, be only preferred embodiment of the present utility model, not in order to limit scope of the present utility model, above-described embodiment of the present utility model can also make a variety of changes.Be that simple, the equivalence that every claims according to the utility model application and description are done changes and modify, all fall into the claim protection domain of the utility model patent.

Claims

1. the pouring gate structure of an injection mold, this mould comprises solid plate and the moving platen being oppositely arranged, and between this solid plate and moving platen, be formed with a mold cavity, it is characterized in that, this pouring gate structure comprises into cast gate section and and is communicated with the extension entered between cast gate section and one end of described mold cavity described, and described extension is mated and axially aligns with described mold cavity is big or small.

2. the pouring gate structure of injection mold according to claim 1, is characterized in that, described in to enter cast gate section mutually vertical with described extension.