CN218139473U

CN218139473U - Injection mold inserts bearing structure based on elasticity floats needle

Info

Publication number: CN218139473U
Application number: CN202222253594.XU
Authority: CN
Inventors: 陈海涛; 胡兵
Original assignee: Changshu Yanpu Auto Parts Co ltd
Current assignee: Changshu Yanpu Auto Parts Co ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2022-12-27
Anticipated expiration: 2032-08-26

Abstract

The utility model discloses an injection mold inserts bearing structure based on elasticity purl, include: injection mold, floating needle, superficial post, inserts, fixed inlay needle, elastic support piece and elasticity regulation plug screw, fixed inlay the needle and set up in front mould benevolence, the inserts sets up in the mould intracavity and is located the front end of fixed inlay needle, be provided with the superficial needle guide hole of directional inserts in the shaping insert, the floating needle sets up in superficial needle guide hole and extends to the terminal surface of inserts, the floating post sets up in the floating post guide hole and is connected with the floating needle, elastic support piece sets up between plug screw and the floating post is adjusted to elasticity. In this way, injection mold inserts bearing structure based on elasticity purl, can elastically press admittedly on the inserts through the purl, avoid the position of inserts to run, the pressurize in-process of moulding plastics, purl front end atress returns, has avoided forming the defect problem on the direct inserts surface on the product.

Description

Injection mold inserts bearing structure based on elasticity floats needle

Technical Field

The utility model relates to an injection mold field especially relates to an injection mold inserts bearing structure based on elasticity float needle.

Background

In order to promote the functional of injection molding, can place the inserts in advance in the mould, obtain the package after moulding plastics and mould the product, for example copper nut has promoted the structural stability of copper nut in the package moulds the product.

In order to promote the positioning accuracy of inserts, can design the positioning mechanism who corresponds with the inserts in the mould usually, but positioning mechanism can not carry out the pressure of inserts solid, and at the in-process that the compound die was moulded plastics, the inserts has the probability of drunkenness from top to bottom, leads to the defective rate of package product to mould high. In order to guarantee the product percent of pass, can increase the thimble that carries out the pressure solid to the inserts in the mould, prevent that the position of inserts from running, but the thimble is fixed, can form the thimble hole of a direct insert on the product after the die sinking, leads to additionally exposing of inserts, can't satisfy the design and the operation requirement of part product, needs improve.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides an injection mold inserts bearing structure based on elasticity floats needle, and it is spacing to carry out the elastic support of inserts, avoids the position of inserts to run and additionally exposes the problem.

In order to solve the technical problem, the utility model discloses a technical scheme be: provided is an injection mold insert supporting structure based on an elastic floating needle, including: the injection mold comprises a front mold core, a rear mold core and a rear mold plate, the rear mold core is arranged on the rear mold plate, the front mold core is arranged in front of the rear mold core relatively, a forming insert is arranged in the rear mold core, a mold cavity corresponding to the forming insert is arranged in the front mold core, the fixing insert is arranged in the front mold core, the front end of the fixing insert extends into the mold cavity, the insert is arranged in the mold cavity and is positioned at the front end of the fixing insert, a floating needle guide hole pointing to the insert is arranged in the forming insert, the floating needle is arranged in the floating needle guide hole and extends to the end face of the insert, a floating column guide hole communicated with the floating needle guide hole is arranged at the tail of the forming insert, the floating column is arranged in the floating column guide hole and is connected with the floating needle, a threaded hole pointing to the floating column guide hole is arranged in the rear mold plate, the elastic adjusting plug is arranged in the threaded hole, and the elastic supporting piece is arranged between the elastic adjusting plug and the floating column.

In a preferred embodiment of the present invention, the insert is provided with a hole corresponding to the front end of the fixing insert pin.

In a preferred embodiment of the present invention, the front end of the float pin partially contacts with the end surface of the insert, or the front end of the float pin is provided with a spherical convex point contacting with the end surface of the insert.

In a preferred embodiment of the present invention, the diameter of the floating pillar is larger than that of the floating needle to form a step.

In a preferred embodiment of the present invention, the floating column and the floating needle are made of an integrated steel structure.

In a preferred embodiment of the present invention, the elastic supporting member is a coil spring.

The utility model has the advantages that: the utility model provides an injection mold inserts bearing structure based on elasticity purl, the purl has been designed very much, the plug screw is adjusted to elasticity support piece and elasticity, adjust the plug screw through elasticity and carry out elasticity support piece's precompression, the elasticity pretightning force of superficial post is given in the adjustment, make the purl can the elasticity pressure admittedly on the inserts behind the compound die, avoid the position of inserts to run, the pressurize in-process of moulding plastics, purl front end atress and returning, no longer contact with the inserts, the defect problem on formation through inserts surface on the product has been avoided, the extra of inserts that has been avoided exposes, satisfy the operation requirement, the qualification rate of product has been promoted.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic structural view of a preferred embodiment of an insert supporting structure of an injection mold based on elastic floating needles.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be apparent that the described embodiments are only some embodiments of the present invention, but 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, an embodiment of the present invention includes:

the injection mold insert supporting structure based on the elastic floating needle as shown in fig. 1 comprises: injection mold, floating needle 6, superficial post 10, inserts 5, fixed inlay needle 4, elastic support 11 and elasticity regulation plug screw 13, injection mold include front mould benevolence 1, back mould benevolence 8 and back template 15, and back mould benevolence 8 sets up on back template 15, can fix through the bolt, stable in structure.

The front mold core 1 is disposed in front of the rear mold core 8, and the injection mold further includes a front mold plate for fixing the front mold core, which belongs to the prior art and is not described herein. The rear mold core 8 is provided with a forming insert 14, and the front mold core 1 is provided with a mold cavity 3 corresponding to the forming insert 14 for forming the plastic coated product 2.

The fixed insert 4 is arranged in the front mold core 1, the front end of the fixed insert extends into the mold cavity 3, and the fixed insert 4 can be fixed through screws or a front template in an injection mold, so that the problem of axial movement is avoided. Insert 5 sets up in die cavity 3 and is located the front end of fixed inlay needle 4, in this embodiment, is provided with the jack that corresponds with the front end of fixed inlay needle 4 in the insert 5, conveniently carries out the location of insert 5 to carry out the packing of jack through the front end of fixed inlay needle 4, avoid the injection molding material to get into inside insert 5.

The forming insert 14 is provided with a floating needle guide hole 7 pointing to the insert, the floating needle 6 is arranged in the floating needle guide hole 7 and extends to the end surface of the insert 5, the insert 5 can be pressed and fixed through the floating needle 6, and the position stability is avoided.

In order to drive the floating needle 6, a floating column guide hole 9 communicated with the floating needle guide hole 7 is formed in the tail of the forming insert 14, a floating column 10 is arranged in the floating column guide hole 9 and connected with the floating needle 6, in the embodiment, the floating column 10 and the floating needle 6 are of an integrated steel structure and high in strength, the diameter of the floating column 10 is larger than that of the floating needle 6 to form a step, the stroke limit of the floating column 10 is carried out, and the floating needle 6 is prevented from moving outwards and falling off.

As shown in fig. 1, a screw hole 12 directed to the floating post guide hole 9 is provided in the rear mold 15, an elastic force adjusting screw 13 is provided in the screw hole 12, and an elastic support 11 is provided between the elastic force adjusting screw 13 and the floating post 10, in this embodiment, the elastic support 11 employs a coil spring, and the compression amount of the elastic support 11 and the elastic force given to the floating post 10 are adjusted by the rotation of the elastic force adjusting screw 13.

In this embodiment, the front end of the floating needle 6 is partially in contact with the end surface of the insert 5, or the front end of the floating needle 6 is provided with a spherical convex point in contact with the end surface of the insert 5, so that the front end of the floating needle 6 can be stressed in the injection molding and pressure maintaining processes, the front end of the floating needle 6 is stressed to compress the elastic support member 11, the floating needle 6 returns to the floating needle guide hole 7 and is not in contact with the insert 5, and the defect that the surface of the insert is directly formed on a product is avoided.

To sum up, the utility model discloses an injection mold inserts bearing structure based on elasticity purl has promoted the stability and the product percent of pass of inserts, has avoided the extra problem of exposing of inserts in the product, has satisfied design and operation requirement.

The above is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent structures or equivalent processes made by the content of the present invention can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the patent protection scope of the present invention.

Claims

1. The utility model provides an injection mold inserts bearing structure based on elasticity floats needle which characterized in that includes: the injection mold comprises a front mold core, a rear mold core and a rear mold plate, the rear mold core is arranged on the rear mold plate, the front mold core is arranged in front of the rear mold core relatively, a forming insert is arranged in the rear mold core, a mold cavity corresponding to the forming insert is arranged in the front mold core, the fixing insert is arranged in the front mold core, the front end of the fixing insert extends into the mold cavity, the insert is arranged in the mold cavity and is positioned at the front end of the fixing insert, a floating needle guide hole pointing to the insert is arranged in the forming insert, the floating needle is arranged in the floating needle guide hole and extends to the end face of the insert, a floating column guide hole communicated with the floating needle guide hole is arranged at the tail of the forming insert, the floating column is arranged in the floating column guide hole and is connected with the floating needle, a threaded hole pointing to the floating column guide hole is arranged in the rear mold plate, the elastic adjusting plug is arranged in the threaded hole, and the elastic supporting piece is arranged between the elastic adjusting plug and the floating column.

2. The elastic floating needle based injection mold insert-supporting structure as claimed in claim 1, wherein the insert is provided therein with a receptacle corresponding to a front end of the fixed insert needle.

3. The elastic floating needle based injection mold insert supporting structure as claimed in claim 1, wherein the front end of the floating needle is partially in contact with the end surface of the insert, or the front end of the floating needle is provided with a spherical convex point in contact with the end surface of the insert.

4. The elastic floating needle based injection mold insert support structure of claim 1, wherein the floating column diameter is larger than the floating needle diameter to form a step.

5. The elastic floating needle based injection mold insert supporting structure as claimed in claim 1, wherein the floating column and the floating needle are of an integrated steel structure.

6. The elastic floating needle based injection mold insert support structure as claimed in claim 1, wherein the elastic support is a coil spring.