CN210758875U

CN210758875U - Plastic accessory injection mold easy to demould

Info

Publication number: CN210758875U
Application number: CN201921023491.6U
Authority: CN
Inventors: 唐爱东
Original assignee: Taizhou Hailing District Jinlong Rubber Plastic Co ltd
Current assignee: Taizhou Hailing District Jinlong Rubber Plastic Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-06-16
Anticipated expiration: 2029-07-03

Abstract

The utility model relates to an easy demoulding's plastics accessory injection mold, including movable mould, cover half and demoulding mechanism, movable mould one side is equipped with the template, the opposite side is equipped with the U-shaped board, be equipped with first die cavity on the template, first die cavity both sides all are equipped with location arch and direction recess, be equipped with the spacing groove on the first die cavity, cover half one side is equipped with the second die cavity, second die cavity both sides all are equipped with location recess and guide post, demoulding mechanism includes cylinder and stripper plate, stripper plate one side is equipped with the top cover, the opposite side is equipped with spacing post, shaping post and ejector pin, the ejector pin tip is equipped with the limiting plate; the utility model discloses a take demoulding mechanism's movable mould, with the stable cooperation of accurate complex cover half, have compact structure, open and shut the mould convenience, can once the characteristics of hole shape processing, and the drawing of patterns is quick, the high quality is favorable to practicing thrift cost and manufacturing procedure, improves product quality and work efficiency.

Description

Plastic accessory injection mold easy to demould

Technical Field

The utility model relates to an easy demoulding's plastics accessory injection mold belongs to rubber and plastic spare production facility technical field.

Background

Plastic accessories of harvesters, automobiles and refrigerators relate to plastic particle products with mounting holes, the prior art mostly adopts an injection molding process, an injection molding machine is used for manufacturing thermoplastic plastics or thermosetting materials into plastic products with various shapes by utilizing a plastic molding die, so the injection molding die is an important tool for the complete structure and accurate size of the plastic accessories after cooling and solidifying, the injection molding die consists of a movable die and a fixed die, the movable die is arranged on a movable die plate of the injection molding machine, the fixed die is arranged on a fixed die plate of the injection molding machine, the movable die and the fixed die are closed to form a pouring system and a cavity during injection molding, the movable die and the fixed die are separated during die opening so as to take out the plastic products, however, due to lack of precise matching, the gap is larger on the matching of an opening and closing die, the side edge quality is not high, and the plastic accessories have the defect of, often cause secondary damage, the disability rate is higher at the drawing of patterns in-process, and need cool off to the definite temperature after just can the stripping, efficiency is lower, and the hole shape processing of plastics accessory adopts the secondary operation shaping simultaneously, causes the dilemma that raw materials are extravagant, the cost is improved, processing cycle is elongated, awaits urgent need to improve.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's defect, provide an easy demoulding's plastic accessories injection mold, adopt the movable mould of taking demoulding mechanism, with the stable cooperation of accurate complex cover half, have compact structure, open and shut the compound die convenient, can once the characteristics of hole shape processing, and the drawing of patterns is quick, the high quality, is favorable to practicing thrift cost and manufacturing procedure, improves product quality and work efficiency.

The utility model discloses a realize through following technical scheme:

an injection mold for plastic accessories easy to demould comprises a movable mold, a fixed mold and a demoulding mechanism, wherein one side of the movable mold is provided with a template, the other side of the movable mold is provided with a U-shaped plate, the template is provided with a first mold groove, two sides of the first mold groove are respectively provided with a positioning bulge and a guide groove, the first mold groove is provided with a limiting groove, one side of the fixed mold is provided with a second mold groove, the second mold groove is arranged corresponding to the first mold groove, two sides of the second mold groove are respectively provided with a positioning groove and a guide post, the positioning groove and the guide post are respectively matched with the positioning bulge and the guide groove for use, and the second mold groove is connected with a conical injection port;

demoulding mechanism includes cylinder and stripper plate, be equipped with the supporting seat between cylinder and the movable mould, and be equipped with the telescopic link, the stripper plate is arranged in the U-shaped inboard, and one side is equipped with the top cover, and the opposite side is equipped with spacing post, shaping post and ejector pin, the top cover pass the U-shaped inboard and cooperate with the telescopic link, spacing post, shaping post all have two, and pass the movable mould and arrange the protruding and first die cavity of location respectively in, the ejector pin passes the movable mould and arranges first die cavity in, and the tip is equipped with the limiting plate, limiting plate and spacing groove shape cooperation.

Above-mentioned plastic accessories injection mold of easy demoulding, wherein, the protruding cross-section of location is isosceles trapezoid structure, the direction recess bottom is equipped with the flaring.

Above-mentioned plastic accessories injection mold of easy demoulding, wherein, second die cavity lateral wall sets up with the bottom slope.

Above-mentioned plastic part injection mold of easy demoulding, wherein, toper entry tip is equipped with the buffer board, the buffer board center is equipped with the bell mouth.

The utility model has the advantages that:

the utility model has the advantages of novel and compact structure, reasonable design, convenient use and assembly, when the movable mould is matched with the fixed mould, the positioning groove and the guide post are respectively matched with the positioning bulge and the guide groove to form a tight guide matching action, the stable opening and closing mould and the accurate gear are ensured, the isosceles trapezoid and the flaring structure are adopted to be beneficial to improving the wear resistance, and the forming quality of the inclined side wall is ensured, simultaneously, the fixed mould is propped against the fixed mould through the limiting post during the mould matching, so that the demoulding plate is propped against the U-shaped plate through the size design, the limiting plate is embedded into the limiting groove shape, the two forming posts form the hole shape for processing, raw materials are injected through the conical injection port with the buffer plate, the first mould groove and the second mould groove form an accurate forming cavity, the mould can be quickly demouldered by the air cylinder on the movable top sleeve after the mould opening, the support is stable, the contact area, so as to be convenient for fast demoulding, is beneficial to saving the cost and the processing procedure, and improves the product quality and the work efficiency.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

(in the figure, a movable die 1, a fixed die 2, a demoulding mechanism 3, a template 4, a U-shaped plate 5, a first die groove 6, a positioning bulge 7, a guide groove 8, a flaring 9, a second die groove 10, a positioning groove 11, a guide post 12, a conical injection port 13, a buffer plate 14, a conical hole 15, a cylinder 16, a demoulding plate 17, a supporting seat 18, an expansion rod 19, a top sleeve 20, a limiting post 21, a forming post 22, a top rod 23, a limiting plate 24 and a limiting groove 25).

Detailed Description

The following describes the present invention with reference to the accompanying drawings.

An easy demoulding plastic accessory injection mold comprises a movable mold 1, a fixed mold 2 and a demoulding mechanism 3, wherein one side of the movable mold 1 is provided with a template 4, the other side of the movable mold is provided with a U-shaped plate 5, the template 4 is provided with a first mold groove 6, two sides of the first mold groove 6 are both provided with a positioning bulge 7 and a guide groove 8, the section of the positioning bulge 7 is of an isosceles trapezoid structure, the bottom of the guide groove 8 is provided with a flaring 9, the first mold groove 6 is provided with a limiting groove 25, one side of the fixed mold 2 is provided with a second mold groove 10, the second mold groove 10 corresponds to the first mold groove 6, and two sides of the second mold groove are both provided with a positioning groove 11 and a guide post 12, the side wall of the second mold groove is obliquely arranged with the bottom, the positioning groove 11 and the guide post 12 are respectively matched with the positioning bulge 7 and the guide groove 8 for use, the second mold groove 10 is, a buffer plate 14 is arranged at the end part of the conical injection port 13, and a conical hole 15 is formed in the center of the buffer plate 14;

demoulding mechanism 3 includes cylinder 16 and stripper plate 17, be equipped with supporting seat 18 between cylinder 16 and the movable mould 1, and be equipped with telescopic link 19, in U-shaped plate 5 was arranged in to the stripper plate, and one side was equipped with top cover 20, and the opposite side is equipped with spacing post 21, shaping post 22 and ejector pin 23, top cover 20 passes U-shaped plate 5 and cooperates with telescopic link 19, spacing post 21, shaping post 22 all have two, and pass movable mould 1 and arrange in location arch 7 and first die cavity 6 respectively, ejector pin 23 passes movable mould 1 and arranges in first die cavity 6, and the tip is equipped with limiting plate 24, limiting plate 24 and the 25 shape-fits of spacing groove.

The utility model discloses a working method does:

the fixed die 2 is fixedly installed, the movable die 1 is installed on a movable die 1 plate of an injection molding machine, a machine barrel frame of an injection device of the injection molding machine is installed on a tapered hole 15 of a buffer plate 14, when the die is closed, the movable die 1 is under the guide fit of a guide groove 8 with a flared opening 9 and a guide column 12, a positioning bulge 7 in an isosceles trapezoid shape is matched with a positioning groove 11 in a shape, the movable die approaches the fixed die 2 to improve the side sealing pressure, because the fixed die 2 presses a limit column 21 in the positioning bulge 7, a stripper plate 17 connected with the limit column 21 is pushed to abut against a U-shaped plate 5, at the moment, a top sleeve 20 is sleeved on a telescopic rod 19 of an air cylinder 16, a limit plate 24 is embedded with a limit groove 25, a forming column 22 abuts against the fixed die 2, a second die groove 10 with an inclined side wall forms a forming cavity with a first die groove 6, the forming column 22 is convenient for one-step hole forming, a, when the mold is opened, the telescopic rod 19 of the air cylinder 16 is used for pushing the ejector sleeve 20, so that the stripper plate 17 moves towards one side of the movable mold 1 to drive the limiting column 21, the forming column 22 and the ejector rod 23 to move synchronously, the mold opening efficiency is improved, meanwhile, the mold is quickly stripped, the limiting plate 24 is arranged, so that the central support pressure is uniform, the concentrated stress is small, the thin plastic fittings are not fragile, the one-step forming quality is high, the cost and the processing procedure are saved, and the product quality and the work efficiency are improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An easy-demoulding plastic accessory injection mould comprises a movable mould, a fixed mould and a demoulding mechanism, and is characterized in that one side of the movable mould is provided with a template, the other side of the movable mould is provided with a U-shaped plate, the template is provided with a first mould groove, two sides of the first mould groove are respectively provided with a positioning bulge and a guide groove, the first mould groove is provided with a limiting groove, one side of the fixed mould is provided with a second mould groove, the second mould groove is arranged corresponding to the first mould groove, two sides of the second mould groove are respectively provided with a positioning groove and a guide post, the positioning groove and the guide post are respectively matched with the positioning bulge and the guide groove for use, and the second mould groove is connected with a conical injection;

2. The injection mold of claim 1, wherein the cross section of the positioning protrusion is an isosceles trapezoid, and the bottom of the guiding groove is provided with a flaring.

3. An injection mould for an easily demoulded plastics part according to claim 1, characterised in that the side walls and base of the second cavity are inclined.

4. An injection mold for an easily released plastic accessory as claimed in claim 1, wherein the tapered injection port is provided at an end thereof with a cushion plate having a tapered hole at a center thereof.