CN202572833U

CN202572833U - Injection mould

Info

Publication number: CN202572833U
Application number: CN 201220143947
Authority: CN
Inventors: 彭吉荣; 李志远
Original assignee: QINGDAO JINNING PLASTIC MOULD CO Ltd
Current assignee: QINGDAO JINNING PLASTIC MOULD CO Ltd
Priority date: 2012-04-09
Filing date: 2012-04-09
Publication date: 2012-12-05
Anticipated expiration: 2022-04-09

Abstract

The utility model belongs to the field of injection moulds, in particular to an injection mould capable of reducing the temperature of a core mould. The injection mould comprises a fixed die insert and a movable die insert, wherein after the fixed die insert and the movable die insert are combined, a product cavity is formed, and a core capable of forming an inner hole structure of a product is arranged on the lower part of the product cavity; a support plate is arranged below the movable die insert, the injection mould further comprises a radiating needle matched with the core, the radiating needle is preferably made of an aluminum alloy material, wherein the upper part of the radiating needle extends into the core, and the lower part of the radiating needle is arranged on the support plate; a cooling water channel used for cooling the radiating needle is arranged between the movable die insert and the support plate. According to the utility model, the temperature of the core can be timely reduced through the radiating needle, and a forming period of the product is shortened.

Description

A kind of injection mold

Technical field

The utility model belongs to the injection mold field, is specifically related to a kind of injection mold that can reduce core mould temperature.

Background technology

Injection moulding as a kind of important plastic processing, has obtained extensive use in industrial circle.Along with the use of plastic products is increasingly extensive, people have proposed stricter requirement to its surface quality, intensity and Shooting Technique; For this reason, need injection mold must possess good processability.Yet existing mold has endoporus and the bigger goods of length for some in producing, and its injection cycle is longer, and the core temperature is too high, and goods endoporus shrinkage factor is excessive after the moulding, causes the plastic distortion bigger.Goods are easy to occur because the variety of issue due to the mould temperature like problems such as goods variable color, embrittlements, influences the presentation quality and the serviceability of goods.

The utility model content

The utility model provides a kind of injection mold, can effectively reduce core temperature in the injection mould process, shorten the molding cycle of goods die cavity inner product, guarantee that goods have good processability.

To achieve these goals, the technical scheme of the utility model employing is:

A kind of injection mold comprises cover half mold insert, dynamic model mold insert, forms the goods die cavity behind cover half mold insert and the dynamic model mold insert matched moulds, and dynamic model mold insert below is provided with gripper shoe, and said goods die cavity bottom is provided with the core that forms the goods inner hole structure, and core is combined with the heat radiation pin.

As the advantageous embodiment of the utility model, said heat radiation pin is that aluminum alloy materials is processed, and is cylindrical structural.

As the advantageous embodiment of the utility model, core inside is stretched on said heat radiation pin top, and the bottom is arranged on the gripper shoe; Be provided with the cooling water channel that the heat radiation pin is formed cooling between dynamic model mold insert and the gripper shoe.

The beneficial effect of the utility model is:

In injection mold, adopt the heat radiation pin, guarantee that goods are in forming process; Can in time reduce the core temperature, effectively prevent defectives such as the too high goods embrittlement that causes of Yin Mowen, variable color, and then shorten the molding cycle of goods; Improve the ratio of briquetting of injection mold, guarantee goods good surface appearance quality; Heat radiation pin bottom is in cooling water channel inside, and continues to feed cooling water, has guaranteed heat radiation pin good cooling effect.

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is further specified:

Description of drawings

Fig. 1 is the structural representation of injection mold in the utility model;

Fig. 2 is the A portion enlarged drawing of Fig. 1, and the sketch map when the heat radiation pin cooperates with core has been shown among the figure;

Wherein, 1-cover half mold insert, 2-dynamic model mold insert, 3-goods die cavity, 4-gripper shoe, 5-core, the 6-pin that dispels the heat, 7-cooling water channel.

The specific embodiment

In conjunction with Fig. 1, shown in Figure 2, a kind of injection mold comprises cover half mold insert 1, dynamic model mold insert 2, and cover half mold insert 1 is oppositely arranged with dynamic model mold insert 2, forms goods die cavity 3 behind the matched moulds, and dynamic model mold insert 2 belows are provided with gripper shoe 4; Goods die cavity 3 bottoms are provided with core 5, are used to form the inner hole structure of goods, and injection mold also comprises with core joins the 5 heat radiation pins 6 that close; Preferably; Heat radiation pin 6 is processed for aluminum alloy materials, and is cylindrical structural, wherein; Core 5 inside are stretched on heat radiation pin 6 tops, and the bottom is arranged on the gripper shoe 4.

Be provided with cooling water channel 7 between dynamic model mold insert 2 and the gripper shoe 4, be used to form cooling, and then make the core temperature reduce, shorten the molding cycle of goods die cavity inner product, guarantee the good appearance quality of product heat radiation pin 6.

Certainly, above-mentioned explanation is not to be the restriction to the utility model, the utility model also be not limited in above-mentioned for example, the variation that the technical staff in present technique field is made in the essential scope of the utility model also should belong to the protection domain of the utility model.

Claims

1. injection mold; Comprise cover half mold insert, dynamic model mold insert, form the goods die cavity behind cover half mold insert and the dynamic model mold insert matched moulds, dynamic model mold insert below is provided with gripper shoe; It is characterized in that: said goods die cavity bottom is provided with the core that forms the goods inner hole structure, and core is combined with the heat radiation pin.

2. a kind of injection mold according to claim 1 is characterized in that: said heat radiation pin is that aluminum alloy materials is processed, and is cylindrical structural.

3. a kind of injection mold according to claim 1 is characterized in that: core inside is stretched on said heat radiation pin top, and the bottom is arranged on the gripper shoe; Be provided with the cooling water channel that the heat radiation pin is formed cooling between dynamic model mold insert and the gripper shoe.