CN212072776U

CN212072776U - Injection mold

Info

Publication number: CN212072776U
Application number: CN202020533908.XU
Authority: CN
Inventors: 俞能勇
Original assignee: Ningbo Yintong Machinery Co ltd
Current assignee: Ningbo Yintong Machinery Co ltd
Priority date: 2020-04-13
Filing date: 2020-04-13
Publication date: 2020-12-04
Anticipated expiration: 2030-04-13

Abstract

The utility model discloses an injection mold, which comprises a first template, a second template, a third template, a fourth template, a fifth template and a sixth template from top to bottom, wherein a pouring opening is fixedly arranged on the first template; a heating device mounting groove is formed in the second template, a heating device and a main runner are fixedly mounted in the heating device mounting groove, and the heating device is fixedly connected with the main runner; be equipped with the cutting device mounting groove on the up end of third template, install cold burden shutdown mechanism in the cutting device mounting groove, carry out the cutting-off treatment to the waste material in the cold silo of injection moulding work piece, reduce the length of waste material on the work piece, reduce follow-up step of processing to the work piece for production cycle reduces, improves production efficiency, and can effectively prevent that the work piece from taking place the damage at the removal in-process.

Description

Injection mold

Technical Field

The utility model relates to an injection mold.

Background

An injection mold is a tool for producing plastic products; the tool is also used for endowing the plastic product with complete structure and accurate dimension, and the injection molding is a processing method used for mass production of parts with complex shapes. Specifically, the plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.

The existing injection mold has certain defects, and due to the fact that the cold trough is arranged in the injection mold, when the mold is demolded, waste materials in the cold trough are demolded together with a workpiece, and the waste materials need to be further cut and polished during subsequent machining, so that the production period of the workpiece is prolonged, the production cost of the workpiece is improved, and the workpiece is scrapped due to the fact that the waste materials are long and easy to enable the workpiece to be cracked when moving.

SUMMERY OF THE UTILITY MODEL

To above not enough, the utility model aims to solve the technical problem that an injection mold is provided for mould plastics auto-parts, cut off the processing for the waste material in the cold silo of injection moulding work piece and provide help, reduce the length of waste material on the work piece, reduce follow-up step of processing to the work piece, make production cycle reduce, improve production efficiency, and can prevent effectively that the work piece from taking place the damage at the removal in-process. Meanwhile, a heating device is added, so that the plasticity of the melted plastic can be better kept.

In order to solve the technical problems, the utility model adopts the technical proposal that,

an injection mold comprises a first template, a second template, a third template, a fourth template, a fifth template and a sixth template from top to bottom in sequence, wherein a pouring opening is fixedly arranged on the first template; a heating device and a main runner are arranged in the second template, and the heating device is fixedly connected with the main runner; a cutting device mounting groove is formed in the upper end face of the third template, and an upper forming face is formed in the lower end face of the third template; and a lower molding groove is formed in the fourth template, a lower molding block is fixedly installed in the lower molding groove, the upper end surface of the lower molding block and the upper end surface of the lower molding groove form a lower molding surface in a stroke, and the lower molding surface and the upper molding surface form an injection molding cavity.

When adopting above technical scheme, the utility model discloses still further adopt or make up and adopted following technical scheme.

The lower forming block comprises a lateral forming block, an inclined plane forming block and a bottom forming block, the bottom forming block is fixedly installed in the lower forming groove, the inclined plane forming block is fixedly installed in the bottom forming block, the lateral forming block is slidably installed in the bottom forming block, a guide groove is formed in the lateral forming block, and correspondingly, a guide rod is fixedly installed in the lower end face of the second template.

The upper end surface of the inclined forming block is provided with a cold material flow passage, and a stroke groove is arranged in the cutting device mounting groove.

Still include jack-up fixed plate and guide post, jack-up fixed plate and guide post sliding connection.

The beneficial effects of the utility model are that, (1) through the setting of cutting device mounting groove, carry out the cutting-off processing to the waste material in the cold silo of injection moulding work piece, reduce the length of waste material on the work piece, reduce the follow-up step of processing to the work piece for production cycle reduces, improves production efficiency, and can prevent effectively that the work piece from taking place the damage at the removal in-process. The size and the shape of the cutting device mounting groove can be adjusted as required, so that the cold material cutting device is suitable for various cold material cutting devices, and the cutting efficiency of cold materials is improved.

(2) Through the setting of jack-up fixed plate, guide post isotructure, be convenient for ejecting the work piece from the intracavity of moulding plastics, the work piece of being convenient for is demolded, improves drawing of patterns efficiency to improve the integrality of work piece drawing of patterns, reduce the rejection rate.

Drawings

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

Fig. 2 is a schematic structural view of fig. 1 with the first template hidden.

Fig. 3 is a schematic structural view of fig. 2 with the second template hidden.

Fig. 4 is a schematic structural view of fig. 3 with the third template hidden.

Fig. 5 is a schematic structural view of fig. 4 with the fourth template hidden.

Fig. 6 is a top view of a fourth template.

Fig. 7 is a schematic structural view of the lower forming block with the bottom forming block hidden.

FIG. 8 is a schematic view of the connection of the cold shut-off mechanism to the sidewall forming block.

Fig. 9 is a schematic structural view of fig. 5 with the fifth template hidden.

Detailed Description

The present information is further described below with reference to the accompanying drawings.

An injection mold comprises a first template 1, a second template 2, a third template 3, a fourth template 4, a fifth template 5 and a sixth template 6 which are arranged from top to bottom in sequence, wherein a pouring opening 7 is fixedly arranged on the first template 1; the pouring gate 7 is circular and is arranged at the center of the first template 1. First template 1 links to each other through the bolt mode with second template 2, conveniently dismantles. A heating device mounting groove 8 is formed in the second template 2, a heating device 9 and a main runner 10 are fixedly mounted in the heating device mounting groove 8, and the heating device 9 is fixedly connected with the main runner 10; the heating device mounting groove 8 is integrally isosceles triangle-shaped, a drainage channel is arranged at the vertex angle position of the heating device mounting groove 8, the channel corresponds to the central position of the pouring gate 7, and the pouring material enters from the pouring gate 7 and enters the third template 3 through the drainage channel. Pouring gate 7 is equipped with cutting device mounting groove 11 on the up end of third template 3, installs cold burden shutdown mechanism 12 in cutting device mounting groove 11, and cutting device mounting groove 11 is the rectangular channel, and cold burden shutdown mechanism 12 can be along the length direction round trip movement of cutting device mounting groove 11. The cold material cutting mechanism 12 cuts off waste materials in the cold material groove of the injection molding workpiece, reduces the length of the waste materials on the workpiece, reduces subsequent steps for processing the workpiece, reduces the production period, improves the production efficiency, and can effectively prevent the workpiece from being damaged in the moving process.

An upper forming surface is arranged on the lower end surface of the third template 3; a lower molding groove 15 is formed in the fourth template 4, a lower molding block 16 is fixedly installed in the lower molding groove 15, the upper end face of the lower molding block 16 and the upper end face of the lower molding groove 15 form a lower molding surface in a stroke way, and the lower molding surface and the upper molding surface form injection molding cavities which are stacked in pairs in some preferred modes, so that the mold can be processed to form two workpieces at one time; sliding mounting has work piece jack-up mechanism 17 in fifth template 5, and work piece jack-up mechanism 17 passes fourth template 4 and is connected with lower shaping face, and fifth template 5 fixed mounting is on the up end of sixth template 6, through work piece jack-up mechanism 17's setting, and the work piece jack-up after the completion is moulded plastics to the chamber of will moulding plastics is convenient for the work piece and is demoulded, improves drawing of patterns efficiency to improve the integrality of work piece drawing of patterns, reduce the rejection rate.

The lower forming block 16 comprises a side forming block 18, an inclined plane forming block 19 and a bottom forming block 20, the bottom forming block 20 is fixedly installed in the lower forming groove 15, the inclined plane forming block 19 is fixedly installed in the bottom forming block 20, the side forming block 18 is slidably installed in the bottom forming block 20, a guide groove 21 is formed in the side forming block 18, correspondingly, a guide rod 22 is fixedly installed in the lower end face of the second template 2, the guide rod 22 is slidably connected with the guide groove 21, preferably, the vertical face of the guide rod 22 is obliquely arranged, when the injection mold is closed, the distance between the second template 2 and the third template 3 is reduced, the guide rod 22 is obliquely arranged, the guide rod 22 can move the side forming block 18, and after the mold closing is completed, the side forming block 18 realizes the side forming of a workpiece.

The cold material cutting mechanism 12 comprises a cutting cylinder 23, a cutting part 24 and a cutting slide block 25, wherein the cutting slide block 25 is slidably mounted in the cutting device mounting groove 11, the cutting cylinder 23 is connected with the cutting slide block 25, the cutting slide block 25 is connected with the cutting part 24, preferably, the cutting part 24 extends into a cold material flow channel, the end part of the cutting part 24 can slide in the cold material flow channel, when the injection molding is carried out, the inlet of the cutting part 24 and the inlet of the cold material flow channel are not dry, and after the injection molding is finished, the cutting part 24 is controlled by the cutting cylinder 23 to move relatively, so that the cutting part 24 cuts off the cold material in the cold material flow channel 26, and the burr amount of workpieces is reduced.

The upper end face of the inclined forming block 19 is provided with a cold material flow passage 26, the cutting piece 24 is connected in the cold material flow passage 26 in a sliding mode, correspondingly, a stroke groove 27 is formed in the cutting device installation groove 11, and the cutting piece 24 is installed in the stroke groove 27 in a sliding mode, so that the cutting piece 24 can cut the cold material conveniently.

A first stroke control block 28 is fixedly installed on the cutting slide 25, a second stroke control block 29 is fixedly installed on the lower end face of the first stroke control block 28, a first stroke switch 30 and a second stroke switch 31 are further arranged in the cutting device installation groove 11, the first stroke switch 30 is connected with the first stroke control block 28, the second stroke switch 31 is connected with the second stroke control block 29, the moving range of the cutting piece 24 is controlled through the arrangement of the first stroke switch 30 and the second stroke switch 31, the moving precision is improved, and the cutting piece 24 is prevented from colliding with the template.

The workpiece jacking mechanism 17 comprises a jacking fixing plate 31, an inclined jacking column 32, a vertical jacking column 33 and a guide column 34, the inclined jacking column 32 and the vertical jacking column 33 are respectively and fixedly connected with a fourth template 4 and a sixth template 6, the jacking fixing plate 31 is in sliding connection with the guide column 34, the inclined jacking column 34 and the vertical jacking column 33 are both fixedly installed on the jacking fixing plate 31, the inclined jacking column 34 and the vertical jacking column 33 both penetrate through the fourth template 4 to be connected with an injection molding cavity, the upper end surface of the inclined jacking column 32 and the upper end surface of the vertical jacking column 33 are in the same plane as the lower molding surface of the injection molding cavity, and through the arrangement of the workpiece jacking mechanism, the workpiece is conveniently ejected out of the injection molding cavity, the workpiece is convenient to be demolded, the demolding efficiency is improved, the completeness of demolding of the workpiece is improved, and the rejection rate is reduced.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention; thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Although the terms corresponding to the reference numerals in the figures are used more herein, the possibility of using other terms is not excluded; these terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. An injection mold is characterized by comprising a first template, a second template, a third template, a fourth template, a fifth template and a sixth template from top to bottom in sequence, wherein a pouring opening is fixedly arranged on the first template; a heating device and a main runner are arranged in the second template, and the heating device is fixedly connected with the main runner; a cutting device mounting groove is formed in the upper end face of the third template, and an upper forming face is formed in the lower end face of the third template; and a lower molding groove is formed in the fourth template, a lower molding block is fixedly installed in the lower molding groove, the upper end surface of the lower molding block and the upper end surface of the lower molding groove form a lower molding surface in a stroke, and the lower molding surface and the upper molding surface form an injection molding cavity.

2. An injection mold as claimed in claim 1, wherein the lower forming block comprises a side forming block, an inclined forming block and a bottom forming block, the bottom forming block is fixedly installed in the lower forming groove, the inclined forming block is fixedly installed in the bottom forming block, the side forming block is slidably installed in the bottom forming block, a guide groove is formed in the side forming block, and correspondingly, a guide rod is fixedly installed in the lower end face of the second mold plate.

3. An injection mold according to claim 2, wherein a cold material flow passage is provided on the upper end surface of the inclined forming block, and a stroke groove is provided in the cutting device mounting groove.

4. An injection mold according to claim 1, further comprising a jacking fixation plate and a guide post, the jacking fixation plate being slidably connected to the guide post.