CN205601091U - Injection mold - Google Patents

Abstract

The utility model discloses an injection mold, but movable mould board and fixed die plate including range upon range of setting and relative movement, decide template settings in movable mould board top, movable mould board and fixed die plate be closed to constitute the chamber of moulding plastics independent more than two, and be provided with the sprue on the fixed die plate and connect in the sprue and respectively the mould plastics branch branch fluid channel in chamber, the feed end of sprue is provided with tubaeform runner cover, the interface of the butt joint of tubaeform runner cover and injection molding machine is big -end -up's bell, and the medial surface of bell is provided with elastic sealing layer. The utility model discloses injection mold has improved the leakproofness between injection molding machine and the injection mold, and the material that can prevent to mould plastics is excessive, guarantees sufficient injection pressure to improve the injection moulding product quality.

Description

an injection mold

technical field

The utility model relates to the technical field of molds, in particular to an injection mold.

Background technique

Mold is an important technological foundation of the manufacturing industry. In my country, mold manufacturing belongs to the special equipment manufacturing industry. Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to injecting the heated and melted material into the mold cavity by high pressure, and after cooling and solidifying, a molded product is obtained. In order to ensure that the heated and melted material can completely fill the injection cavity in the mold, the injection molding machine must use a relatively large injection pressure for injection molding. However, many existing mold injection molding machines do not cooperate closely with the gate of the mold. When the injection pressure is too high, raw materials will overflow, resulting in insufficient injection pressure and insufficient material injection, which will affect the quality of injection molding products.

Utility model content

The technical problem to be solved by the utility model is to provide an injection mold, which is used to solve the problems in the prior art that the cooperation between the injection molding machine and the gate of the mold is not tight, and it is easy to cause insufficient injection pressure and insufficient material injection, so as to improve the quality of injection molding products .

The utility model is achieved in that:

An injection mold, comprising stacked movable templates and fixed templates that are relatively movable, the fixed template is arranged above the movable template, the movable template and the fixed template are closed to form more than two independent injection molding cavities, and the fixed template is provided with a main flow plate channel and branch channels connected to the main channel and each injection molding cavity, and the feed end of the main channel is provided with a trumpet-shaped sprue sleeve;

The interface between the trumpet-shaped sprue sleeve and the injection molding machine is a tapered mouth with a large top and a small bottom, and an elastic sealing layer is arranged on the inner surface of the tapered mouth.

Further, the fixed template is arranged on the first backing plate, the first backing plate is fixed on the fixed mold seat plate, the first backing plate and the fixed mold seat plate are provided with a channel connected with the main flow channel, and the The horn-shaped sprue sleeve is arranged in the channel.

Further, it also includes a movable mold base plate, a second backing plate, a push plate and a guide column;

The movable mold base plate and the fixed mold base plate are arranged parallel to each other, and the guide column is vertically arranged between the movable mold base plate and the fixed mold base plate;

The movable formwork is arranged on the second backing plate, and the second backing plate is slidably arranged on the guide column, and the push plate is arranged between the second backing plate and the seat plate of the movable formwork.

Further, the elastic sealing layer is made of rubber.

The utility model has the following advantages: the injection mold of the utility model is provided with a main channel and branch channels connected to the main channel and each injection cavity on the fixed template, and a horn-shaped sprue sleeve is arranged at the feeding end of the main channel, The interface of the sprue sleeve is tapered, which can be adapted to different types of injection molding machines and is easy to locate, and an elastic sealing layer is set on the inner surface of the interface, thereby improving the sealing between the injection molding machine and the injection mold, and can Prevent the overflow of injection molding materials and ensure sufficient injection pressure, thereby improving the quality of injection molding products.

Description of drawings

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

FIG. 2 is a schematic structural view of the sprue sleeve in this embodiment.

Label description:

1. Moving formwork; 2. Fixed formwork; 3. Second backing plate; 4. Moving formwork seat plate; 5. First backing plate; 6. Fixed formwork seat plate; 7. Horn-shaped gate sleeve; 8. Push plate ; 21, the main flow channel; 22, the branch flow channel; 23, the injection cavity; 31, the guide post; 71, the interface; 72, the elastic sealing layer.

detailed description

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1, the embodiment of the utility model, an injection mold, the injection mold includes a movable template 1 and a fixed template 2, the fixed template 2 is arranged above the movable template 1, and the movable template 1 and the fixed template 2 are closed to form More than two independent injection molding cavities 23, the fixed plate 2 is provided with a main channel 21 and a branch channel 22 connected to the main channel 21 and each injection cavity 23, and the feed end of the main channel 21 is provided with a horn-shaped gate Set of 7. Please refer to FIG. 2 , the interface 71 between the trumpet-shaped sprue bushing 7 and the injection molding machine is a tapered mouth with a large upper part and a smaller lower part, and an elastic sealing layer 72 is provided on the inner surface of the tapered port.

Specifically, in this embodiment, the material of the elastic sealing layer 72 is rubber. In other embodiments, the elastic sealing layer 72 may also be made of other elastic materials such as silica gel.

Wherein, the fixed template 2 is arranged on the first backing plate 5, and the first backing plate 5 is fixed on the fixed mold seat plate 6, and the first backing plate 5 and the fixed mold seat plate 2 are provided with a sprue connected to the sprue. channel, the horn-shaped sprue bushing 7 is set in the channel.

The injection mold also includes a movable mold seat plate 4, a second backing plate 3, a push plate 8 and a guide column 31; Between the mold base plate 4 and the fixed mold base plate 6; the movable template 1 is arranged on the second backing plate 3, and the movable template 1, the second backing plate 3 and the movable mold base plate 4 are slidably arranged on the guide column 31 Above, the push plate 8 is arranged between the second backing plate 3 and the movable mold seat plate 4, and a plurality of push rods are arranged on the push plate 8, and the ends of the push rods are connected to the injection molding cavity. Before injection molding, the movable template 1 is pushed to the fixed template 2 to form the injection molding cavity 23 for injection molding; during injection molding, the plastic outlet of the injection molding machine is docked with the interface 71 of the sprue sleeve, and injection molding is inward; after the injection molding is completed, through The finished product is pushed out (promptly demolding) from the injection molding cavity by the push piece rod on push plate 8 and it. In this injection mold, the interface of the sprue sleeve is tapered, which can be adapted to different types of injection molding machines and is easy to locate, and an elastic sealing layer is set on the inner surface of the interface, thereby improving the distance between the injection molding machine and the injection mold. Sealing can prevent the injection molding material from overflowing, ensure sufficient injection molding pressure, and improve the quality of injection molding products.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. Any equivalent shape or structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other related Technical fields are all included in the scope of patent protection of the utility model in the same way.

Claims (4)

1. A kind of injection molding mold, comprise the moving template that stacks and can move relatively and fixed template, described fixed template is arranged on the top of movable template, and movable template and fixed template are closed and form more than two independent injection molding cavities, it is characterized in that, The fixed template is provided with a main flow channel and branch flow channels connected to the main flow channel and each injection cavity, and the feed end of the main flow channel is provided with a trumpet-shaped sprue sleeve; The interface between the trumpet-shaped sprue sleeve and the injection molding machine is a tapered mouth with a large top and a small bottom, and an elastic sealing layer is arranged on the inner surface of the tapered mouth. 2. The injection mold according to claim 1, wherein the fixed template is arranged on the first backing plate, the first backing plate is fixed on the fixed mold seat plate, and the first backing plate and the fixed mold seat A channel connected to the main flow channel is arranged on the plate, and the trumpet-shaped sprue sleeve is arranged in the channel. 3. The injection mold according to claim 1, further comprising a movable mold base plate, a second backing plate, a push plate and a guide column; The movable mold base plate and the fixed mold base plate are arranged parallel to each other, and the guide column is vertically arranged between the movable mold base plate and the fixed mold base plate; The movable formwork is arranged on the second backing plate, and the second backing plate is slidably arranged on the guide column, and the push plate is arranged between the second backing plate and the seat plate of the movable formwork. 4. The injection mold according to claim 1, wherein the material of the elastic sealing layer is rubber.