CN210634044U

CN210634044U - Ejection mechanism of mold

Info

Publication number: CN210634044U
Application number: CN201921634348.0U
Authority: CN
Inventors: 邹鹏
Original assignee: Suzhou Yizhite Mould Technology Co ltd
Current assignee: Suzhou Yizhite Mould Technology Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-29
Anticipated expiration: 2029-09-27

Abstract

The utility model belongs to the technical field of dies, in particular to an ejection mechanism of a die, an upper die base is arranged above a lower die base, a guide pillar is arranged on a lower template, and guide sleeves are arranged on a middle template and the upper template; ejecting mechanism disposes in the lower bolster, 2 drawing of patterns are gone the chamber and are set up the both sides at the lower bolster respectively, the top in the chamber is gone in the drawing of patterns is equipped with the pneumatic valve, the upper end setting of pneumatic valve is in the bottom of well template, the lower extreme of pneumatic valve communicates in the top in the chamber is gone in the drawing of patterns, the bottom in the chamber is gone in the drawing of patterns is equipped with the spring, the push pedal is disposed to the spring top, the push pedal top disposes the ejector pin, the lower extreme of pneumatic valve is withstood to the upper end of ejector pin, airflow pipeline communicates in the upper portion in the chamber is gone in the drawing of patterns, and airflow pipeline and the connector in the chamber. The utility model discloses simple structure does not have ejecting vestige.

Description

Ejection mechanism of mold

Technical Field

The utility model belongs to the technical field of the mould, specific saying so relates to an ejection mechanism of mould.

Background

Injection molds have become a very popular mold for use in industrial processes, wherein a groove is formed when an upper mold plate and a lower mold plate are closed, and a product with a specific shape is formed in the groove under the action of extrusion force. When demoulding, the traditional mould adopts a mechanical ejection mechanism, and the ejector rod is used for ejecting a product out of the mould, so that the defect of irreversible rotation is easily caused to the product.

SUMMERY OF THE UTILITY MODEL

To the technical problem who mentions in the above-mentioned background art, consequently, the utility model provides an ejection mechanism of mould.

An ejection mechanism for a mold, comprising: the upper die base is arranged above the lower die base; further comprising: the device comprises an upper template, a middle template, a lower template, a forming cavity, a guide pillar, a guide sleeve and an ejection mechanism; the upper template, the middle template and the lower template are sequentially arranged between the upper die holder and the lower die holder from top to bottom, the upper template, the middle template and the lower template form the molding cavity, the guide pillar is arranged on the lower template, and the guide sleeve is arranged on the middle template and the upper template; the ejection mechanism is arranged in the lower template and comprises an air pump, an air flow pipeline, a demoulding cavity, an air valve, an ejector rod, a push plate and a spring; 2 the capable chamber of drawing of patterns sets up respectively the both sides of lower bolster, the top in the capable chamber of drawing of patterns is equipped with the pneumatic valve, the upper end setting of pneumatic valve is in the bottom of well template, the lower extreme of pneumatic valve communicate in the top in the capable chamber of drawing of patterns, the bottom in the capable chamber of drawing of patterns is equipped with the spring, the spring top disposes the push pedal, the push pedal top disposes the ejector pin, the upper end of ejector pin withstands the lower extreme of pneumatic valve, airflow pipeline communicate in the upper portion in the capable chamber of drawing of patterns, just airflow pipeline with the connector in the capable chamber of drawing of patterns is located the push pedal top, the air pump sets up the lower bolster with between the die holder, and the air pump communicate in airflow pipeline.

Furthermore, the guide pillar is in transition fit with the guide sleeve.

Furthermore, the horizontal section of the push plate is circular, the horizontal section of the demolding cavity is circular, and the diameter of the horizontal section of the push plate is 1-2 mm smaller than that of the demolding cavity.

The utility model provides an ejection mechanism of mould, beneficial effect lies in that the utility model discloses simple structure, air pump pass through the air flow pipeline and go into 100 to 400 KPa's compressed air in the chamber toward the drawing of patterns, under compressed air's atmospheric pressure effect, the elasticity downwardly moving of spring is overcome to the compression push pedal, and the ejector pin is also following the downstream, and compressed air upwards emits from the pneumatic valve to mould plate rebound in making, the drawing of patterns is carried out, makes the product atress even, does not have ejecting vestige.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of the device of the present invention;

in the figure, 1, an upper die base; 2. a lower die holder; 3. mounting a template; 4. a middle template; 5. a lower template; 6. a molding cavity; 7. a guide post; 8. a guide sleeve; 9. an ejection mechanism; 91. an air pump; 92. an air flow conduit; 93. demolding and cavity moving; 94. an air valve; 95. a top rod; 96. pushing the plate; 97. a spring.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element. It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The following describes preferred embodiments of the present invention in detail with reference to the accompanying drawings.

An ejection mechanism for a mold, comprising: the die comprises an upper die holder 1 and a lower die holder 2, wherein the upper die holder 1 is arranged above the lower die holder 2; further comprising: the device comprises an upper template 3, a middle template 4, a lower template 5, a forming cavity 6, a guide pillar 7, a guide sleeve 8 and an ejection mechanism 9; the upper template 3, the middle template 4 and the lower template 5 are sequentially arranged between the upper die holder 1 and the lower die holder 2 from top to bottom, the upper template 3, the middle template 4 and the lower template 5 form the molding cavity 6, the guide pillar 7 is arranged on the lower template 5, the guide sleeve 8 is arranged on the middle template 4 and the upper template 3, and the guide pillar 7 and the guide sleeve 8 are in transition fit. The ejection mechanism 9 is arranged in the lower template 5, and the ejection mechanism 9 comprises an air pump 91, an air flow pipeline 92, a demoulding cavity 93, an air valve 94, an ejector rod 95, a push plate 96 and a spring 97; the 2 demolding cavities 93 are respectively arranged at two sides of the lower template 5, the air valves 94 are arranged at the top ends of the demolding cavities 93, the upper ends of the air valves 94 are arranged at the bottom of the middle template 4, the lower ends of the air valves 94 are communicated with the top ends of the demolding cavities 93, the springs 97 are arranged at the bottom ends of the demolding cavities 93, the push plates 96 are arranged above the springs 97, the horizontal sections of the push plates 96 are circular, the horizontal sections of the demolding cavities 93 are circular, the horizontal sections of the push plates 96 are smaller than the horizontal sections of the demolding cavities 93 by 1-2 mm, ejector rods 95 are arranged above the push plates 96, the upper ends of the ejector rods 95 push against the lower ends of the air valves 94, the air flow pipelines 92 are communicated with the upper portions of the demolding cavities 93, and connecting ports of the air flow pipelines 92 and the demolding cavities 93 are located above the push plates 96, the air pump 91 is arranged between the lower template 5 and the lower die base 2, and the air pump 91 is communicated with the air flow pipeline 92. The air pump 91 injects 100 to 400KPa of compressed air into the demoulding cavity through the air flow pipeline 92, the compressed push plate 96 overcomes the elasticity of the spring 97 to move downwards under the action of the air pressure of the compressed air, the ejector rod 95 also moves downwards along with the spring, at the moment, the air valve 94 is opened, and the compressed air is upwards emitted from the air valve 94, so that the middle template 4 moves upwards to demould.

The working principle is as follows: after the punching is finished, the demolding is carried out, at the moment, the air pump 91 is started, the air pump 91 injects 100 to 400KPa of compressed air into the demolding cavity through the air flow pipeline 92, under the air pressure action of the compressed air, the compression push plate 96 overcomes the elastic force of the spring 97 to move downwards, the ejector rod 95 also moves downwards along with the compressed air, at the moment, the air valve 94 is opened, and the compressed air is upwards emitted from the air valve 94, so that the middle template 4 moves upwards, and the demolding is carried out.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An ejection mechanism for a mold, comprising: the upper die base is arranged above the lower die base; it is characterized by also comprising: the device comprises an upper template, a middle template, a lower template, a forming cavity, a guide pillar, a guide sleeve and an ejection mechanism; the upper template, the middle template and the lower template are sequentially arranged between the upper die holder and the lower die holder from top to bottom, the upper template, the middle template and the lower template form the molding cavity, the guide pillar is arranged on the lower template, and the guide sleeve is arranged on the middle template and the upper template; the ejection mechanism is arranged in the lower template and comprises an air pump, an air flow pipeline, a demoulding cavity, an air valve, an ejector rod, a push plate and a spring; 2 the capable chamber of drawing of patterns sets up respectively the both sides of lower bolster, the top in the capable chamber of drawing of patterns is equipped with the pneumatic valve, the upper end setting of pneumatic valve is in the bottom of well template, the lower extreme of pneumatic valve communicate in the top in the capable chamber of drawing of patterns, the bottom in the capable chamber of drawing of patterns is equipped with the spring, the spring top disposes the push pedal, the push pedal top disposes the ejector pin, the upper end of ejector pin withstands the lower extreme of pneumatic valve, airflow pipeline communicate in the upper portion in the capable chamber of drawing of patterns, just airflow pipeline with the connector in the capable chamber of drawing of patterns is located the push pedal top, the air pump sets up the lower bolster with between the die holder, and the air pump communicate in airflow pipeline.

2. The mold ejection mechanism of claim 1, wherein the guide post and the guide sleeve are transition fit.

3. The mold ejection mechanism of claim 1, wherein the horizontal cross section of the pusher is circular, the horizontal cross section of the ejection row cavity is circular, and the horizontal cross section of the pusher is 1 to 2 mm smaller than the diameter of the horizontal cross section of the ejection row cavity.