阅读说明：本技术 一种双层叠热流道主射嘴分离模具及分离工艺 (Double-layer stacked hot runner main nozzle separation mold and separation process ) 是由 刘明珠 周明幸 于 2019-10-21 设计创作，主要内容包括：本发明涉及模具加工技术领域,特别涉及一种双层叠热流道主射嘴分离模具及分离工艺。其结构包括相对设置的主射嘴加热定模和主射嘴加热动模,所述的主射嘴加热定模和主射嘴加热动模内分别设置有定模针阀和动模针阀,定模针阀的中心轴向截面为T形,所述的定模针阀的定模头部与所述的主射嘴加热定模的定模模孔前端内壁配合卡嵌,所述的定模针阀的定模杆部直径小于所述的主射嘴加热定模的定模模孔后部的内径。本发明的一种双层叠热流道主射嘴分离模具及分离工艺,其通过定动模的分体设计,解决了和注塑机射嘴分离时产生的溢料问题,避免影响下一模产品质量。(The invention relates to the technical field of mold processing, in particular to a double-layer laminated hot runner main nozzle separation mold and a separation process. Its structure includes that the owner that sets up relatively penetrates mouth heating cover half and owner and penetrates mouth heating movable mould, owner penetrate mouth heating cover half and owner and penetrate and be provided with cover half needle valve and movable mould needle valve in the mouth heating cover half respectively, the center axial cross-section of cover half needle valve is T shape, the cover half head of cover half needle valve with owner penetrate the cover half nib front end inner wall cooperation inlay card of mouth heating cover half, the cover half pole diameter of cover half needle valve be less than the owner penetrate the internal diameter at the cover half nib rear portion of mouth heating cover half. According to the double-layer laminated hot runner main nozzle separation mold and the separation process, the split design of the fixed mold is adopted, the problem of flash generated when the mold is separated from the injection nozzle of the injection molding machine is solved, and the influence on the product quality of the next mold is avoided.)

1. The utility model provides a double-deck hot runner owner of folding penetrates mouth release die, includes that the owner that sets up relatively penetrates mouth heating cover half and owner and penetrates mouth heating movable mould, owner penetrate mouth heating cover half and owner and penetrate and be provided with cover half needle valve and movable mould needle valve in the mouth heating movable mould respectively, a serial communication port, the central axial cross-section of cover half needle valve be the T shape, the cover half head of cover half needle valve with owner penetrate the cover half mould hole front end inner wall cooperation inlay card of mouth heating cover half, the cover half pole portion diameter of cover half needle valve be less than owner penetrate the internal diameter at cover half mould hole rear portion of mouth heating cover half.

2. The mold of claim 1, wherein the movable mold needle valve comprises an inwardly recessed movable mold head and a movable mold rod behind the head, the movable mold head is fitted and fitted with the inner wall of the rear end of the movable mold hole of the main nozzle heating movable mold, and the diameter of the movable mold rod is larger than the diameter of the movable mold head and smaller than the inner diameter of the front portion of the movable mold hole.

3. The mold of claim 1, wherein the lower edge of the fixed mold head of the fixed mold needle valve is spherical.

4. A double-layer stacked hot runner main nozzle separation process comprises the following steps:

A. after a main injection nozzle heating fixed die and a main injection nozzle heating movable die which are respectively internally provided with a fixed die needle valve and a movable die needle valve are attached, the fixed die needle valve and the movable die needle valve move for a certain distance towards the main injection nozzle heating movable die direction, so that spaces are generated between the fixed die needle valve and the movable die needle valve and between the fixed die hole of the main injection nozzle heating fixed die and the movable die hole of the main injection nozzle heating movable die respectively;

B. performing injection molding on the space;

C. after injection molding is finished, the fixed mold needle valve and the movable mold needle valve move towards the direction of the main injection nozzle heating fixed mold until the fixed mold head of the fixed mold needle valve with the T-shaped central axial section is matched and clamped on the inner wall of the front end of the fixed mold hole of the main injection nozzle heating fixed mold, and at the moment, the movable mold head is matched and clamped with the inner wall of the rear end of the movable mold hole of the main injection nozzle heating movable mold to finish sealing;

D. and after the sealing is finished, opening the mold to eject the product, and completing the separation of the main injection nozzle.

5. The process of claim 4, wherein the lower edge of the fixed mold head of the fixed mold needle valve is spherical.

Technical Field

The invention relates to the technical field of mold processing, in particular to a double-layer laminated hot runner main nozzle separation mold and a separation process.

Background

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides a double-layer laminated hot runner main nozzle separation die and a separation process, which solve the problem of flash generated when the double-layer laminated hot runner main nozzle is separated from a nozzle of an injection molding machine through the split design of a fixed die and avoid influencing the product quality of a next die.

The technical scheme adopted by the invention is as follows:

the utility model provides a double-deck hot runner owner of folding penetrates mouth release die, includes that the owner that sets up relatively penetrates mouth heating cover half and owner and penetrates mouth heating movable mould, owner penetrate mouth heating cover half and owner and penetrate and be provided with cover half needle valve and movable mould needle valve in the mouth heating movable mould respectively, the central axial cross-section of cover half needle valve for T shape, the cover half head of cover half needle valve with owner penetrate the cover half mould hole front end inner wall cooperation inlay card of mouth heating cover half, the cover half pole portion diameter of cover half needle valve be less than the owner penetrate the internal diameter at cover half mould hole rear portion of mouth heating cover half.

The movable mould needle valve comprises an invaginated movable mould head part and a movable mould rod part behind the head part, the movable mould head part is matched and clamped with the inner wall of the rear end of a movable mould hole of the main nozzle heating movable mould, and the diameter of the movable mould rod part is larger than that of the movable mould head part and smaller than the inner diameter of the front part of the movable mould hole.

The lower edge of the fixed die head of the fixed die needle valve is a spherical surface.

A double-layer stacked hot runner main nozzle separation process comprises the following steps:

A. after a main injection nozzle heating fixed die and a main injection nozzle heating movable die which are respectively internally provided with a fixed die needle valve and a movable die needle valve are attached, the fixed die needle valve and the movable die needle valve move for a certain distance towards the main injection nozzle heating movable die direction, so that spaces are generated between the fixed die needle valve and the movable die needle valve and between the fixed die hole of the main injection nozzle heating fixed die and the movable die hole of the main injection nozzle heating movable die respectively;

B. performing injection molding on the space;

C. after injection molding is finished, the fixed mold needle valve and the movable mold needle valve move towards the direction of the main injection nozzle heating fixed mold until the fixed mold head of the fixed mold needle valve with the T-shaped central axial section is matched and clamped on the inner wall of the front end of the fixed mold hole of the main injection nozzle heating fixed mold, and at the moment, the movable mold head is matched and clamped with the inner wall of the rear end of the movable mold hole of the main injection nozzle heating movable mold to finish sealing;

D. and after the sealing is finished, opening the mold to eject the product, and completing the separation of the main injection nozzle.

The technical scheme provided by the invention has the beneficial effects that:

compared with the prior art, the double-layer laminated hot runner main nozzle separation mold and the separation process have the advantages that the structure is simpler, the integral structure is more flexible, the installation is convenient, the size of the mold can be smaller, and the problem that the quality of a next mold product is influenced by flash generated by separation of the mold and a nozzle of an injection molding machine is mainly solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a prior art hot runner main nozzle split mold configuration;

FIG. 2 is a schematic view of a prior art injection molding process of a hot runner main nozzle split mold;

FIG. 3 is a schematic structural view of a split mold for a double-stacked hot runner main nozzle of the present invention;

fig. 4 is a process schematic diagram of a method for separating a main nozzle of a double-stacked hot runner according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.