CN215703734U

CN215703734U - Air exhaust structure for mold cavity

Info

Publication number: CN215703734U
Application number: CN202122339402.2U
Authority: CN
Inventors: 熊廷彦; 郑辰辰
Original assignee: Kunshan Grand Precision Mould Co ltd
Current assignee: Jiangsu Zhigaoyuan Intelligent Equipment Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-02-01
Anticipated expiration: 2031-09-26

Abstract

A mould cavity air exhaust structure comprises a female mould cavity insert, wherein an injection mould cavity is formed in the female mould cavity insert, an inlet of the injection mould cavity is formed in one end of the female mould cavity insert, a female mould pressing plate is arranged at the other end of the female mould cavity insert, an air exhaust channel is formed in the female mould pressing plate, an air hole is formed in the bottom of the injection mould cavity, and the air hole is communicated with the air exhaust channel; the mould cavity air exhaust structure of this scheme design can be at the product in-process of moulding plastics, takes out the gas of female mould intracavity from the die cavity bottom through air exhaust equipment to avoid injection moulding product to appear lacking the material effectively, the size circumstances such as unstable, improve the appearance defect of product.

Description

Air exhaust structure for mold cavity

Technical Field

The utility model belongs to the technical field, and particularly relates to a mould cavity air exhaust structure.

Background

Injection mold is the common mould that is used for producing plastic products, is provided with the injection mold cavity in the injection mold, and traditional injection mold can produce too much gas at raw and other materials kicks into the mould cavity in-process, and these gaseous unable under the general condition get rid of completely, and this can lead to product quality defect, causes the condition such as product scorch, starved material and size unstability, leads to product manufacturing cost to increase, and the product defective rate improves.

Therefore, it is necessary to design a mold cavity air-extracting structure to solve the technical problem of poor appearance of the product caused by the air existing inside the mold.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a mould cavity air exhaust structure.

In order to achieve the above objects and other related objects, the present invention provides the following technical solutions: the utility model provides a mould cavity air exhaust structure, includes that female mould cavity goes into son, female mould cavity goes into son and has seted up the die cavity of moulding plastics, the entry of die cavity of moulding plastics is seted up female mould cavity goes into son's one end, simultaneously female mould cavity goes into son's the other end and is provided with the master model clamp plate, the inside air exhaust channel of having seted up of master model clamp plate, simultaneously the bottom is seted up the gas pocket in the die cavity of moulding plastics, the gas pocket intercommunication air exhaust channel.

Preferably, a plurality of female mold cavity inserts are uniformly arranged on the female mold pressing plate, a plurality of parallel-distributed air exhaust channels are arranged in the female mold pressing plate, and one air exhaust channel corresponds to the female mold cavity inserts arranged in a row on the female mold pressing plate.

Preferably, an exhaust pipe is arranged in the exhaust channel, the exhaust pipe is communicated with a plurality of branch pipes, and each branch pipe is correspondingly communicated with an air hole at the bottom in the injection molding cavity.

Preferably, the port department of bleed passage sets up on the side of master model clamp plate, the port department be provided with the air cock of exhaust tube butt joint.

Preferably, a sealing ring is arranged at the joint of the air hole and the branch pipe.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the air exhaust structure for the mold cavity, air in the cavity of the female mold can be exhausted from the air hole formed in the bottom of the cavity through the air exhaust channel by the air exhaust equipment in the injection molding process of a product, so that the conditions of material shortage, unstable size and the like of an injection molding product are effectively avoided, the appearance defect of the product is improved, and the production cost is reduced; meanwhile, the mold has a stable and reliable structure, and can realize mass production.

Drawings

Fig. 1 is a schematic view of a mold cavity evacuation structure.

In the above drawings, a cavity insert 1 of a female mold, an injection mold cavity 2, a female mold pressing plate 3, an air exhaust channel 4, an air exhaust pipe 5, a branch pipe 6, an air hole 7, an air tap 8 and a sealing ring 9.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which the products of the present invention are usually placed in when used, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a communication between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, a mold cavity air exhaust structure comprises a female mold cavity insert 1, wherein an injection mold cavity 2 is arranged on the female mold cavity insert 1, an inlet of the injection mold cavity 2 is arranged at one end of the female mold cavity insert 1, a female mold pressing plate 3 is arranged at the other end of the female mold cavity insert 1, an air exhaust channel 4 is arranged inside the female mold pressing plate 3, an air hole 7 is arranged at the bottom inside the injection mold cavity 2, and the air hole 7 is communicated with the air exhaust channel 4; the mould cavity air exhaust structure of this scheme design can be at the product in-process of moulding plastics, and the gas of gas pocket 7 of seting up from the die cavity bottom through air exhaust equipment takes out the gas of die cavity intracavity through bleed passage 4 to avoid injection moulding product to appear lacking material, condition such as size unstability effectively.

The preferred embodiment is as follows:

the female die pressing plate 3 is uniformly provided with a plurality of female die cavity inserts 1, meanwhile, a plurality of parallel-distributed air exhaust channels 4 are arranged in the female die pressing plate 3, and one air exhaust channel 4 corresponds to the female die cavity inserts 1 arranged in a row on the female die pressing plate 3.

An air exhaust pipe 5 is arranged in the air exhaust channel 4, the air exhaust pipe 5 is communicated with a plurality of branch pipes 6, and each branch pipe 6 is correspondingly communicated with an air hole 7 at the bottom in the injection molding cavity 2.

The port department of bleed passage 4 sets up on the side of female mould clamp plate 3, the port department be provided with air cock 8 of exhaust tube 5 butt joint.

And a sealing ring 9 is arranged at the joint of the air hole 7 and the branch pipe 6.

The specific working principle of the mould cavity air exhaust structure designed by the scheme is as follows: connect the air cock 8 that is located 3 sides of master model clamp plate through the air extractor, inject raw and other materials into the mould die cavity that master model cavity goes into son 1, at the in-process of moulding plastics, the air that produces in the mould die cavity is earlier through gas pocket 7, bleeder 6 get into 5 ways in the exhaust tube, then takes out the air through the air extractor, and air cock 8 is used for docking the air extractor, and whole air exhaust structure's sealing performance can be guaranteed better to sealing washer 9.

The beneficial effect of this embodiment does: according to the air exhaust structure for the mold cavity, air in the cavity of the female mold can be exhausted from the air hole 7 formed in the bottom of the cavity through the air exhaust channel 4 by the air exhaust equipment in the injection molding process of a product, so that the conditions of material shortage, unstable size and the like of the injection molded product are effectively avoided, the appearance defect of the product is improved, and the production cost is reduced; meanwhile, the mold has a stable and reliable structure, and can realize mass production.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. a mold cavity air-pumping structure, it is characterized in that: comprise the female model cavity inserter, the female model cavity inserter is provided with an injection molding cavity, and the entrance of the described injection molding cavity is provided in the female model cavity One end of the injection mold cavity, and the other end of the injection mold cavity is provided with a mother mold pressing plate, an air extraction channel is opened inside the female mold pressing plate, and an air hole is opened at the bottom of the injection mold cavity, and the air hole communicates with each other. the exhaust channel.

2. A mold cavity air extraction structure according to claim 1, characterized in that: a plurality of female mold cavity inlets are evenly arranged on the female mold pressing plate, and several parallel distribution lines are opened in the female mold pressing plate at the same time. One of the air extraction channels corresponds to the female mold cavity inlets arranged in a row on the mother mold pressing plate.

3. A mold cavity air extraction structure according to claim 2, characterized in that: an air extraction pipe is arranged in the air extraction passage, and several branch pipes are communicated with the air extraction pipe, and each branch pipe is respectively Correspondingly connected to the air hole at the bottom of an injection mold cavity.

4. A mold cavity air extraction structure according to claim 3, characterized in that: the port of the air extraction channel is opened on the side of the female mold pressing plate, and the port is provided with a Describe the air nozzle that the exhaust pipe is connected to.

5 . The mold cavity air extraction structure according to claim 3 , wherein a sealing ring is provided at the connection between the air hole and the branch pipe. 6 .