CN218286579U

CN218286579U - Anti-deformation structure for insert of injection mold

Info

Publication number: CN218286579U
Application number: CN202221680034.6U
Authority: CN
Inventors: 盛正奇; 李智涛
Original assignee: Shenzhen Zhengxingyuan Technology Co ltd
Current assignee: Shenzhen Zhengxingyuan Technology Co ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2023-01-13
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses an injection mold insert is with shape structure of preapring for an unfavorable turn of events, include: the mold comprises an upper mold, a lower mold and an insert, wherein a product groove is formed in the lower mold, the insert is arranged on the side face of the product groove, a bulge is arranged on the insert, and a groove is formed in the bulge. The utility model can be inserted into the inner side of the engagement groove through the bulge, and then inserted into the inner side of the groove by utilizing the supporting block, thereby preventing the mold insert from deforming under stress; the pressure relief hole is formed in the product groove, so that the deformation of the inner wall of the insert caused by air pressure can be reduced when the product groove is subjected to pressure relief during injection molding.

Description

Anti-deformation structure for insert of injection mold

Technical Field

The utility model relates to an injection mold technical field specifically is an injection mold insert is with shape structure of preapring for an unfavorable turn of events.

Background

The plastic particles enter a plastic mold cavity at a high speed through an injection molding machine, the insert needs to bear great injection pressure, the injection pressure easily punches the thin sheet insert to deform or break, the stability of the mold cannot be guaranteed, the production yield of the product can be greatly influenced, the insert of the existing mold is designed, and the top end of the insert is in horizontal contact with a matching surface.

When the insert is impacted by external force, the insert only resists the impact of injection pressure through the friction force with the contact surface, however, the friction force is difficult to resist the impact of injection pressure, and the contact part of the thin insert and the upper mold and other parts of the insert are very easy to deform.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold insert is with shape structure of preapring for an unfavorable turn of events to solve the problem that external shock leads to the mold insert to warp.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an injection mold insert is with shape structure of preapring for an unfavorable turn of events, includes: the mold comprises an upper mold, a lower mold and an insert, wherein a product groove is formed in the lower mold, the insert is arranged on the side face of the product groove, a bulge is arranged on the insert, and a groove is formed in the bulge.

Preferably, the lower end surface of the upper die is symmetrically provided with cutting grooves, the inner sides of the cutting grooves are inserted with protrusions, and the contact area between the upper die and the lower end surface of the upper die can be increased through the protrusions.

Preferably, the inner side of the cutting groove is provided with a supporting block, the supporting block is inserted into the inner side of the groove, and the supporting block is inserted into the inner side of the groove to support the protrusion, so that the deformation caused by compression is avoided.

Preferably, the cutting groove is provided with a pressure relief hole, and gas in the product groove enters the joint of the cutting groove and the bulge to be relieved through the pressure relief hole, so that the influence on the insert is reduced.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the mold insert inserts through the arch and fits the inslot side, then utilizes the supporting shoe to insert the recess inboard, can prevent that the mold insert atress from warping.

2. The utility model discloses a setting in pressure release hole is to the product inslot when moulding plastics and carry out the pressure release and can reduce the mold insert inner wall deformation that leads to because of atmospheric pressure.

Drawings

FIG. 1 is a sectional view of the overall structure of the present invention;

FIG. 2 is a schematic view of the lower mold of the present invention;

in the figure: 1 upper die, 11 pressure relief holes, 12 cutting grooves, 13 supporting blocks, 2 lower die, 21 product groove, 3 insert, 31 bulge and 32 groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, 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 all belong to the protection scope of the present invention.

Example 1

Referring to fig. 1 and 2, a deformation preventing structure for an insert of an injection mold in the drawings includes: go up mould 1, lower mould 2 and mold insert 3, be provided with product groove 21 on the lower mould 2, mold insert 3 sets up the side in product groove 21, is provided with arch 31 on the mold insert 3, is provided with recess 32 on the arch 31.

The lower end face of the upper die 1 is symmetrically provided with a cutting groove 12, the inner side of the cutting groove 12 is inserted with a protrusion 31, and the contact area of the upper die 1 and the protrusion 31 can be increased.

The supporting block 13 is arranged on the inner side of the cutting groove 12, the supporting block 13 is inserted into the inner side of the groove 32, and the supporting block 13 is inserted into the inner side of the groove 32 to support the protrusion 31 so as to avoid deformation caused by compression.

When this mold insert 3 uses: the insert 3 can be prevented from being deformed by force by providing the projections 31 inserted into the inner sides of the cutout grooves 12 and the support blocks 13 inserted into the grooves 32, and supporting the projections 31 by the cutout grooves 12 and the support blocks 13.

Example 2

Referring to fig. 1 and 2, the present embodiment further illustrates another embodiment, in which a deformation preventing structure for an injection mold insert includes: go up mould 1, lower mould 2 and mold insert 3, be provided with product groove 21 on the lower mould 2, mold insert 3 sets up the side in product groove 21, is provided with arch 31 on the mold insert 3, is provided with recess 32 on the arch 31.

Be provided with pressure release hole 11 on the groove 12 of surely closing, the gas in the product groove 21 gets into and surely closes groove 12 and the arch 31 junction and carries out the pressure release through pressure release hole 11, reduces the influence that causes mold insert 3.

In this embodiment, during injection molding, after gas in the product groove 21 enters the cut-and-join groove 12 and the protrusion 31, the gas is released through the pressure relief hole 11, so that the insert 3 deforms due to pressure in the product groove 21, and the product deforms.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an injection mold insert is with shape structure of preapring for an unfavorable turn of events which characterized in that includes:

go up mould (1), lower mould (2) and mold insert (3), be provided with product groove (21) on lower mould (2), mold insert (3) set up the side in product groove (21), be provided with arch (31) on mold insert (3), be provided with recess (32) on arch (31), go up the terminal surface symmetry of mould (1) and be provided with and cut groove (12), the inboard grafting in cut groove (12) has arch (31).

2. The anti-deformation structure for the injection mold insert according to claim 1, characterized in that: the inner side of the cutting groove (12) is provided with a supporting block (13), and the supporting block (13) is inserted into the inner side of the groove (32).

3. The anti-deformation structure for the injection mold insert according to claim 1, characterized in that: the cutting groove (12) is provided with a pressure relief hole (11).