CN219095740U

CN219095740U - Hot runner hot nozzle core structure

Info

Publication number: CN219095740U
Application number: CN202223130973.6U
Authority: CN
Inventors: 邹治煌; 邹治灯; 何平
Original assignee: Yueqing Huangrong Mold Co ltd
Current assignee: Yueqing Huangrong Mold Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-05-30
Anticipated expiration: 2032-11-24

Abstract

The utility model provides a hot runner hot nozzle mouth core structure, includes the core seat, be equipped with a cavity in the core seat, be equipped with the elastic component in the cavity, the butt of elastic component top has interior mouth core, interior mouth core outer wall and cavity inner wall butt, when using, make the work piece move to the cavity direction when moulding plastics through the elasticity that elastic component and interior mouth core butt produced, carry out the operation of moulding plastics, wait to mould plastics the back of accomplishing, the elastic component supports interior mouth core and outwards moves, be full butt with the material mouth, can not keep unnecessary raw materials in the material mouth and flow the discharge gate, reduce the clearance step to hot nozzle mouth core structure, improve thermoplastic quality.

Description

Hot runner hot nozzle core structure

Technical Field

The utility model relates to a hot runner hot nozzle core structure, and belongs to the field of injection molding machine accessories.

Background

The hot runner system is an important component in injection mold production equipment, the runner part of the mold is kept in a molten state by utilizing the principles of heating and temperature control, the hot nozzle core is used for helping molding a plastic part, the existing hot nozzle core is integrally molded, residual materials at the head part of the nozzle core, which are abutted to the plastic part, can remain after discharging is finished, flow out of a material outlet, and the nozzle core is required to be cleaned in the material inlet in subsequent cleaning, so that the cleaning difficulty is high and the nozzle core is possibly damaged.

Disclosure of Invention

The utility model aims to overcome the defects and the shortcomings of the prior art and provides a hot runner hot nozzle core structure.

Preferably, the elastic piece is a spring; or the elastic piece is an elastic sleeve, the elastic sleeve or the spring is easy to obtain, and the cost is saved on the basis of increasing the using effect.

Preferably, the core print comprises a base, a boss is arranged on the base, and the cavity is arranged in the boss.

Further, the chamfer is arranged at the top of the boss and at the bottom of the inner nozzle core, so that the inner nozzle core can enter the cavity in the boss more easily, and the assembly abrasion is reduced.

Preferably, the bottom of the base is provided with a fixed cone for installation with an external bushing.

Further, the top of the inner nozzle core is in a truncated cone shape and is used for abutting against the plastic part and blocking the material opening.

The beneficial effects of the utility model are as follows: when the hot nozzle core structure is used, the workpiece moves towards the cavity direction during injection molding through elasticity generated by abutting the elastic piece and the inner nozzle core, injection molding operation is performed, after injection molding is completed, the elastic piece supports the inner nozzle core to move outwards, the elastic piece is in complete abutting connection with the material port, redundant raw materials cannot be reserved in the material port and flow out of the material port, cleaning steps of the hot nozzle core structure are reduced, and thermoplastic quality is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that it is within the scope of the utility model to one skilled in the art to obtain other drawings from these drawings without inventive faculty.

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a cross-sectional view of the main structure of the outer door frame of the present utility model;

FIG. 3 is an exploded view of the structure of the present utility model;

in the figure, 1, a core seat; 11. a base; 111. a fixed cone; 12. a boss; 121. a cavity; 2. an elastic member; 3. an inner nozzle core; 31. chamfering.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

It should be noted that, in the embodiments of the present utility model, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present utility model, and the following embodiments are not described one by one.

The terms of direction and position in the present utility model, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer only to the direction or position of the drawing. Accordingly, directional and positional terms are used to illustrate and understand the utility model and are not intended to limit the scope of the utility model.

As shown in fig. 1-3, an embodiment of a hot runner nozzle core structure according to the present utility model includes a core seat 1, a cavity 121 is provided in the core seat 1, an elastic member 2 is provided in the cavity 121, the top of the elastic member 2 is abutted against an inner nozzle core 3, the outer wall of the inner nozzle core 3 is abutted against the inner wall of the cavity 121, when in use, the elasticity generated by the abutment of the elastic member 2 and the inner nozzle core 3 enables a workpiece to move towards the cavity 121 during injection molding, injection molding is performed, after injection molding is completed, the elastic member 2 supports the inner nozzle core 3 to move outwards, and to be in complete abutment with a material port, so that no excessive raw materials are left in the material port and flow out of the material port, thereby reducing cleaning steps of the hot runner nozzle core structure and improving thermoplastic quality.

The elastic piece 2 is a spring; or the elastic piece 2 is an elastic sleeve, the elastic sleeve or the spring is easy to obtain, and the cost is saved on the basis of increasing the using effect. The core print 1 comprises a base 11, a boss 12 is arranged on the base 11, and a cavity 121 is arranged in the boss 12. The chamfer 31 is arranged at the top of the boss 12 and at the bottom of the inner nozzle core 3, so that the inner nozzle core 3 can enter the cavity 121 in the boss 12 more easily, and the assembly abrasion is reduced. The bottom of the base 11 is provided with a fixed cone 111 for mounting with an external bushing. The top of the inner nozzle core 3 is in a truncated cone shape and is used for abutting against the plastic part and blocking the material opening.

The foregoing disclosure is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, which is defined by the appended claims.

While the utility model has been described with reference to several particular embodiments, it should be understood that the utility model is not limited to the particular embodiments disclosed. The utility model is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. The utility model provides a hot mouth core structure of hot runner which characterized in that: the automatic feeding device comprises a core seat, wherein a cavity is formed in the core seat, an elastic piece is arranged in the cavity, the top of the elastic piece is abutted to an inner nozzle core, and the outer wall of the inner nozzle core is abutted to the inner wall of the cavity; the bottom of the core seat is provided with a fixed cone.

2. The hot runner nozzle core structure of claim 1, wherein: the elastic piece is a spring; or the elastic piece is an elastic sleeve.

3. The hot runner nozzle core structure of claim 1, wherein: the core seat comprises a base, a boss is arranged on the base, and the cavity is arranged in the boss.

4. A hot runner nozzle core structure as described in claim 3 wherein: and chamfers are arranged at the top of the boss and the bottom of the inner nozzle core.

5. The hot runner nozzle core structure of claim 1, wherein: the top of the inner nozzle core is in a truncated cone shape.