CN211640768U

CN211640768U - Injection mold for automotive interior parts

Info

Publication number: CN211640768U
Application number: CN201920167996.3U
Authority: CN
Inventors: 陶小龙
Original assignee: Suzhou Longchun Precision Mould Co ltd
Current assignee: Suzhou Longchun Precision Mould Co ltd
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2020-10-09
Anticipated expiration: 2029-01-30

Abstract

The utility model discloses an automotive interior spare injection mold, comprising an upper base plate, fixed mounting has the fixed die plate on the lower terminal surface of upper plate, the below of fixed die plate is provided with the movable mould board, fixedly connected with mount pad on the lower terminal surface of movable mould board, fixedly connected with lower plate on the lower terminal surface of mount pad, be provided with mould benevolence on the fixed die plate, be provided with lower mould benevolence on the movable mould board, be provided with a set of die cavity between upper mould benevolence and the lower mould benevolence. The utility model relates to a simple structure, technology optimization, it is efficient to mould plastics, the automotive interior spare injection mold of high quality of moulding plastics.

Description

Injection mold for automotive interior parts

Technical Field

The utility model relates to an injection mold technical field specifically is an automotive interior spare injection mold.

Background

The injection mold is divided into a thermosetting plastic mold, an automobile mold and a thermoplastic plastic mold according to the molding characteristics; the molding process includes transfer molding, blow molding, cast molding, thermoforming, hot pressing (compression molding), injection molding, etc. The existing injection mould for producing automotive interior parts is poor in injection parts due to the fact that the mould closing precision of the injection mould is not enough, and the later-stage sprue removing workload is large due to the fact that a sprue cannot be removed in a mould.

Therefore, there is a need for an injection mold for automotive upholstery that improves upon the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automotive interior spare injection mold to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an automotive interior spare injection mold, includes the upper plate, fixed mounting has the fixed die plate on the lower terminal surface of upper plate, the below of fixed die plate is provided with the movable mould board, fixedly connected with mount pad on the lower terminal surface of movable mould board, fixedly connected with lower plate on the lower terminal surface of mount pad, be provided with mould benevolence on the fixed die plate, be provided with lower mould benevolence on the movable mould board, be provided with a set of die cavity between upper mould benevolence and the lower mould benevolence.

Preferably, the positioning ring and the sprue bush are arranged on the upper base plate, the sprue bush penetrates through the upper die core, the lower end of the sprue bush is located in the lower die core, a main runner is arranged in the sprue bush, a group of sub-runners are arranged in the lower die core, the main runner is connected with the sub-runners, the sub-runners are connected with the die cavity, and a pouring gate is arranged at the joint of the sub-runners and the die cavity.

Preferably, the fixed die plate is provided with a pair of guide post holes, the movable die plate is provided with a pair of guide posts, and the guide posts and the guide post holes are installed in a sliding fit mode.

Preferably, the mold cavities are distributed in an annular array in the upper mold core and the lower mold core.

Preferably, the ejector plate is installed in the installation seat in a sliding mode, an ejector column is fixedly connected to the lower end face of the ejector plate, and a group of ejector pins and a group of sprue removing ejector pins are installed on the upper end face of the ejector plate in a sliding mode.

Preferably, the upper end of the thimble is located on the lower surface of the mold cavity, and the upper end of the degating thimble is located on the lower surface of the gate.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses in, guide pillar and guide pillar hole sliding fit go up mould benevolence and the cooperation precision of lower mould benevolence when can increasing the compound die, have guaranteed the manufacturing accuracy of injection molding. The die cavities are distributed in the upper die core and the lower die core in an annular array mode, the distance from each die cavity to the main runner is the same, the consistency of injection molding quality can be guaranteed, injection molding parts can be molded through one-time injection molding, and machining efficiency is effectively improved. The ejector pin is used for ejecting the injection molding after the mold is opened, and the sprue removing ejector pin is used for cutting off a sprue on the injection molding, so that the subsequent sprue removing link is omitted. The utility model relates to a simple structure, technology optimization, it is efficient to mould plastics, the automotive interior spare injection mold of high quality of moulding plastics.

Drawings

FIG. 1 is a schematic structural diagram of an injection mold for automotive upholstery;

FIG. 2 is a schematic view of a portion of the structure at K in FIG. 1;

FIG. 3 is a schematic structural view of a lower mold core of an injection mold for automotive upholstery;

fig. 4 is a schematic structural diagram of an ejector plate in an injection mold for automotive upholstery.

In the figure: 1-upper base plate, 2-lower base plate, 3-fixed template, 4-movable template, 5-mounting plate, 6-guide pillar, 7-lower mold core, 8-upper mold core, 9-positioning ring, 10-sprue bush, 11-main runner, 12-branch runner, 13-mold cavity, 14-top pillar, 15-top needle plate, 16-top needle, 17-degating top needle, 18-gate and 19-guide pillar hole.

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 work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides an automotive interior spare injection mold, includes upper plate 1, fixed mounting has fixed die plate 3 on the lower terminal surface of upper plate 1, the below of fixed die plate 3 is provided with movable mould board 4, fixedly connected with mount pad 5 on the lower terminal surface of movable mould board 4, fixedly connected with lower plate 2 on the lower terminal surface of mount pad 5, be provided with upper die benevolence 8 on the fixed die plate 3, be provided with lower mould benevolence 7 on the movable mould board 4, be provided with a set of die cavity 13 between upper die benevolence 8 and the lower mould benevolence 7.

Before injection molding, the lower base plate 2 drives the lower mold core 7 to move upwards to complete mold closing with the upper mold core 8, molten injection molding liquid is injected into the mold cavity 13 after mold closing, after the injection molding liquid in the mold cavity 13 is subjected to pressure maintaining cooling, the lower base plate 2 drives the lower mold core 7 to move downwards to complete mold opening, and an injection molding piece is ejected out after mold opening.

The upper bottom plate 1 is provided with a positioning ring 9 and a sprue bush 10, the sprue bush 10 penetrates through an upper die core 8, the lower end of the sprue bush 10 is located in a lower die core 7, a main runner 11 is arranged in the sprue bush 10, a group of branch runners 12 are arranged in the lower die core 7, the main runner 11 is connected with the branch runners 12, the branch runners 12 are connected with a die cavity 13, and a pouring gate 18 is arranged at the joint of the branch runners 12 and the die cavity 13.

The branch channels 12 are distributed in an annular array and connected with each mold cavity 13, and are used for injecting injection molding liquid into the mold cavities 13, and the main channel 11 is used for inputting the injection molding liquid into the branch channels 12.

The fixed die plate 3 is provided with a pair of guide post holes 19, the movable die plate 4 is provided with a pair of guide posts 6, and the guide posts 6 are installed in a sliding fit with the guide post holes 19.

The guide post 6 is in sliding fit with the guide post hole 19, so that the matching precision of the upper mold core 8 and the lower mold core 7 during mold closing can be increased, and the manufacturing precision of injection molding parts is guaranteed.

The mold cavities 13 are distributed in an annular array in the upper mold core 8 and the lower mold core 7.

The mold cavities 13 are distributed in the upper mold core 8 and the lower mold core 7 in an annular array, the distance between each mold cavity 13 and the main runner 11 is the same, the consistency of injection molding quality can be guaranteed, more injection molded parts can be molded through one-time injection molding, and the processing efficiency is effectively improved.

An ejector plate 15 is installed in the installation seat 5 in a sliding mode, an ejector column 14 is fixedly connected to the lower end face of the ejector plate 15, and a group of ejector pins 16 and a group of sprue removing ejector pins 17 are installed on the upper end face of the ejector plate 15.

The upper end of the thimble 16 is located on the lower surface of the cavity 13, and the upper end of the degating thimble 17 is located on the lower surface of the gate 18.

The ejector pin 16 is used for ejecting the injection molding after the mold is opened, and the sprue removing ejector pin 17 is used for cutting off a sprue on the injection molding, so that the subsequent sprue removing link is omitted.

The utility model discloses a theory of operation is: the utility model relates to an automotive interior spare injection mold, before moulding plastics, lower plate 2 drives lower mould benevolence 7 rebound and goes up mould benevolence 8 and accomplish the compound die, injects the molten liquid of moulding plastics into mould cavity 13 after the compound die, treats the liquid of moulding plastics in the mould cavity 13 and through the pressurize cooling back, and lower plate 2 drives lower mould benevolence 7 rebound and accomplishes the die sinking, and it is ejecting with the injection molding after the die sinking. The branch channels 12 are distributed in an annular array and connected with each mold cavity 13, and are used for injecting injection molding liquid into the mold cavities 13, and the main channel 11 is used for inputting the injection molding liquid into the branch channels 12. The guide post 6 is in sliding fit with the guide post hole 19, so that the matching precision of the upper mold core 8 and the lower mold core 7 during mold closing can be increased, and the manufacturing precision of injection molding parts is guaranteed. The mold cavities 13 are distributed in the upper mold core 8 and the lower mold core 7 in an annular array, the distance between each mold cavity 13 and the main runner 11 is the same, the consistency of injection molding quality can be guaranteed, more injection molded parts can be molded through one-time injection molding, and the processing efficiency is effectively improved. The ejector pin 16 is used for ejecting the injection molding after the mold is opened, and the sprue removing ejector pin 17 is used for cutting off a sprue on the injection molding, so that the subsequent sprue removing link is omitted.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides an automotive interior spare injection mold, includes upper plate (1), its characterized in that: a fixed template (3) is fixedly arranged on the lower end face of the upper bottom plate (1), a movable template (4) is arranged below the fixed template (3), a mounting seat (5) is fixedly connected to the lower end face of the movable template (4), a lower bottom plate (2) is fixedly connected to the lower end face of the mounting seat (5), an upper mold core (8) is arranged on the fixed template (3), a lower mold core (7) is arranged on the movable template (4), a group of mold cavities (13) are arranged between the upper mold core (8) and the lower mold core (7), a positioning ring (9) and a sprue bush (10) are arranged on the upper bottom plate (1), the sprue bush (10) penetrates through the upper mold core (8), the lower end of the sprue bush (10) is positioned in the lower mold core (7), a sprue bush (11) is arranged in the sprue bush (10), a group of sprue runners (12) is arranged in the lower mold core (7), sprue (11) link to each other with subchannel (12), subchannel (12) link to each other with die cavity (13), and subchannel (12) are provided with runner (18) with the junction of die cavity (13), slip setting installs thimble board (15) in mount pad (5), fixedly connected with fore-set (14) on the lower terminal surface of thimble board (15), set up on the up end of thimble board (15) and install a set of thimble (16) and a set of runner thimble (17) that goes, the upper end of thimble (16) is located the lower surface of die cavity (13), the upper end that goes runner thimble (17) is located the lower surface of runner (18).

2. The automotive interior spare injection mold of claim 1, characterized in that: the fixed die plate (3) is provided with a pair of guide post holes (19), the movable die plate (4) is provided with a pair of guide posts (6), and the guide posts (6) are installed in a sliding fit mode with the guide post holes (19).

3. The automotive interior spare injection mold of claim 1, characterized in that: the die cavities (13) are distributed in an annular array in the upper die core (8) and the lower die core (7).