CN213704315U

CN213704315U - Nitrogen forming die structure

Info

Publication number: CN213704315U
Application number: CN202021782632.5U
Authority: CN
Inventors: 康新建
Original assignee: Shenzhen Dongchuang Technology Co Ltd
Current assignee: Shenzhen Dongchuang Technology Co Ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-07-16
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a nitrogen gas forming die structure, mould and mould lower mould on the mould, mould benevolence has been seted up to mould lower mould upper surface, mould lower mould internally mounted has the air inlet, air inlet left side fixed connection ammonia pipeline, the ammonia pipeline is steel lining tetrafluoro pipeline, makes the pipeline possess polytetrafluoroethylene's low coefficient of friction and non-adhesion function promptly, strengthens its resistance to pressure through the steel lining again, the ammonia pipeline is kept away from air inlet one end fixedly connected with pipeline valve, mould benevolence right side bottom has been seted up and has been stolen gluey mouthful. The utility model discloses in, emit into nitrogen gas through the air inlet, nitrogen gas gets into the pipeline valve along nitrogen gas pipeline, gets into through the pipeline valve and steals in the jiao kou, makes nitrogen gas blow in inside the work piece, because there is nitrogen gas product inside when moulding plastics, glues the unable entering of position, so just solidify in gaseous outside, make the inside hollow that forms of product, reach and reduce gluey position, make the product surface can not have shrink, when the work piece finishes the cooling, nitrogen gas passes through the inlet position and discharges.

Description

Nitrogen forming die structure

Technical Field

The utility model belongs to the technical field of injection mold, specifically be a nitrogen gas forming die structure.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various designs and colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, suitability for the molding processing fields of mass production, products with complex shapes and the like, and the method can be used for stirring completely molten plastic materials by a screw at a certain temperature, injecting the plastic materials into a mold cavity by high pressure, cooling and solidifying to obtain molded products. The method is suitable for batch production of parts with complex shapes, and is one of important processing methods;

in the prior art, the glue position thickness of a common product is within 3mm, and injection molding can be directly completed through injection molding, once the glue position exceeds more than 5mm, the appearance of the product cannot be ensured by a common injection mold, and the appearance is shrunk because the glue position is too thick.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: in order to solve the problem that the glue position thickness of a common product in the prior art can be directly finished by injection molding within 3mm, the glue position exceeds more than 5mm, the appearance of the product cannot be guaranteed by a common injection mold, and the appearance can shrink due to the fact that the glue position is too thick, a nitrogen forming mold structure is provided.

The utility model adopts the technical scheme as follows: the utility model provides a nitrogen gas forming die structure, includes mould and mould lower mould on the mould, mould benevolence has been seted up to mould lower mould upper surface, mould lower mould internally mounted has the air inlet, air inlet left side fixedly connected with ammonia pipeline, the ammonia pipeline is kept away from air inlet one end fixedly connected with pipeline valve, mould benevolence right side bottom has been seted up and has been stolen gluey mouthful.

In a preferred embodiment, the top of the pipeline valve is fixedly connected with the glue stealing port.

In a preferred embodiment, the ammonia pipeline is a steel lining polytetrafluoroethylene pipeline, so that the pipeline has the low friction coefficient and the non-adhesion function of polytetrafluoroethylene, and the pressure resistance of the pipeline is enhanced by a steel lining.

In a preferred embodiment, the conduit valve is a needle valve.

In a preferred embodiment, an injection port is installed on the top of the upper die of the die.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses in, emit into nitrogen gas through the air inlet, nitrogen gas gets into the pipeline valve along nitrogen gas pipeline, gets into through the pipeline valve and steals in the jiao kou, makes nitrogen gas blow in inside the work piece, because there is nitrogen gas product inside when moulding plastics, glues the unable entering of position, so just solidify in gaseous outside, make the inside hollow that forms of product, reach and reduce gluey position, make the product surface can not have shrink, when the work piece finishes the cooling, nitrogen gas passes through the inlet position and discharges.

Drawings

FIG. 1 is a sectional view of a nitrogen forming mold structure according to the present invention;

FIG. 2 is a sectional view of a nitrogen forming mold structure of the present invention;

FIG. 3 is a schematic structural view of A in the nitrogen forming mold structure of the present invention;

the labels in the figure are: 1-upper mould, 2-lower mould, 3-air inlet, 4-nitrogen pipeline, 5-pipeline valve, 6-glue stealing port, 7-mould core and 8-injection port.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, a nitrogen forming mold structure, comprising an upper mold 1 and a lower mold 2, wherein an injection port 8 is installed at the top of the upper mold 1, a mold core 7 is arranged on the upper surface of the lower mold 2, an air inlet 3 is installed inside the lower mold 2, an ammonia pipeline 4 is fixedly connected to the left side of the air inlet 3, the ammonia pipeline 4 is a steel-lined polytetrafluoroethylene pipeline, so that the pipeline has the low friction coefficient and the non-adhesion function of polytetrafluoroethylene, the pressure resistance of the pipeline is enhanced by a steel liner, a pipeline valve 5 is fixedly connected to one end of the ammonia pipeline 4 far away from the air inlet 3, the pipeline valve 5 is a needle valve, a glue stealing port 6 is arranged at the bottom of the right side of the mold core 7, the top of the pipeline valve 5 is fixedly connected with the glue stealing port 6, when a workpiece is injected, nitrogen is discharged through the air inlet 3, enters the pipeline valve 5 along, make nitrogen gas blow in inside the work piece, because there is nitrogen gas product inside during moulding plastics, glue the unable entering of position, so just solidify in gaseous outside, make product inside form hollow, reach and reduce gluey position, make the product surface can not have shrink, and when the work piece finishes the cooling of moulding plastics, nitrogen gas is discharged through the position of admitting air.

The working principle is as follows: when moulding plastics the work piece, discharge into nitrogen gas through air inlet 3, nitrogen gas gets into pipeline valve 5 along nitrogen gas pipeline 4, get into through pipeline valve 5 and steal in gluey mouth 6, make nitrogen gas blow in inside the work piece, because there is nitrogen gas product inside during moulding plastics, glue the unable entering of position, so just solidify in gaseous outside, make the inside hollow that forms of product, reach and reduce gluey position, make the product surface can not have shrink, when the work piece finishes the cooling of moulding plastics, nitrogen gas is discharged through the position of admitting air.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a nitrogen gas forming die structure, includes mould (1) and mould lower mould (2), its characterized in that on the mould: mould benevolence (7) have been seted up to mould lower mould (2) upper surface, mould lower mould (2) internally mounted has air inlet (3), air inlet (3) left side fixedly connected with ammonia pipeline (4), air inlet (3) one end fixedly connected with pipeline valve (5) are kept away from in ammonia pipeline (4), mould benevolence (7) right side bottom has been seted up and has been stolen jiao kou (6).

2. A nitrogen-forming die structure as claimed in claim 1, wherein: the top of the pipeline valve (5) is fixedly connected with the glue stealing port (6).

3. A nitrogen-forming die structure as claimed in claim 1, wherein: the ammonia pipeline (4) is a steel lining tetrafluoro pipeline.

4. A nitrogen-forming die structure as claimed in claim 1, wherein: the pipeline valve (5) is a needle valve.

5. A nitrogen-forming die structure as claimed in claim 1, wherein: and an injection molding opening (8) is arranged at the top of the upper die (1) of the die.