CN219006907U

CN219006907U - Injection mold suitable for tubular shell plastic part

Info

Publication number: CN219006907U
Application number: CN202223559130.8U
Authority: CN
Inventors: 汤克
Original assignee: Shanghai Chuangzhi Auto Parts Co ltd
Current assignee: Shanghai Chuangzhi Auto Parts Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-05-12
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to an injection mold suitable for a cylindrical shell plastic part, which comprises a rear mold bottom plate, a cushion block, a rear mold fixing plate, a rear mold movable plate, a rear mold core, a front mold movable plate, a front mold fixing plate, a front mold bottom plate and a front mold core, wherein a first fixing plate, a second fixing plate and a third fixing plate are sequentially arranged on the front side of the rear mold bottom plate from back to front, a rear mold core is arranged on the front side of the rear mold fixing plate, a front mold core is arranged on the front side of the front mold movable plate, a rear mold guide post is arranged on the third fixing plate, a rear mold ejector post is arranged on the second fixing plate, a rear mold material returning spring is connected between the rear mold bottom plate and the second fixing plate, a front mold material returning spring is arranged between the front mold fixing plate and the front mold movable plate, and the front mold bottom plate is provided with a guide post. According to the utility model, the rear mold core is separated from the injection molding piece firstly, and then the rear mold core is separated from the injection molding piece, so that the demolding is facilitated, and the front mold material returning spring can ensure that the front mold core and the rear mold core are in a mold closing state when the rear mold core is demolded, so that the injection molding piece is demolded step by step, and the normal demolding of a product is facilitated.

Description

Injection mold suitable for tubular shell plastic part

Technical Field

The utility model relates to an automobile injection molding production mold, in particular to an injection mold suitable for a cylindrical shell plastic part.

Background

The automobile injection molding is widely applied, and the automobile injection molding is usually molded by injection molding once during production, so that the cylindrical automobile injection molding cannot be molded too deeply for facilitating demolding, or the draft of the inner cavity is designed slowly, so that the traditional injection molding is difficult to mold for the injection molding with deeper inner wall steeper inner wall.

Disclosure of Invention

In view of the shortcomings of the prior art, the utility model aims to provide an injection mold suitable for a cylindrical shell plastic piece.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an injection mold suitable for tubular casing working of plastics, includes back die bottom plate, set up in the cushion of back die bottom plate front side, set up in back die fixed plate in the back die fly leaf of cushion front side, set up in back die core in back die fly leaf front side center inside, set up in front die fly leaf front side, set up in front die fixed plate in front of front die fly leaf, set up in front die bottom plate of front die fixed plate front side, set up in front die core in front die fly leaf rear side center, back die bottom plate front side is from the back forward be equipped with first fixed plate in proper order, second fixed plate, third fixed plate, back die fixed plate front side is equipped with the back mold core that runs through back mold core forward, front die fly leaf front side is equipped with the front mold core that runs through back mold core backward, the front mold core and the outer surface of the rear mold core are profiling surfaces of the inner cavity of the cylindrical shell plastic part, a gate is arranged on a front mold bottom plate, the gate extends to the die cavity of the front mold core and the die cavity of the rear mold core, a rear mold guide post which extends forwards and is matched with a rear mold movable plate is arranged on a third fixed plate, a rear mold jacking post which is connected with the rear mold movable plate is arranged on a second fixed plate, a rear mold material returning spring is connected between the rear mold bottom plate and the second fixed plate, a forward elastic force is applied to the second fixed plate by the rear mold material returning spring, a backward elastic force is applied to the front mold movable plate by the front mold material returning spring, a backward extending die clamping guide post is arranged on the front mold bottom plate, and the die clamping guide post is respectively connected with the front mold movable plate, the rear mold movable plate and the front mold material returning spring are arranged between the front mold movable plate and the front mold movable plate, the front mold material returning spring and the front mold movable plate, the front mold movable plate are respectively The rear die fixing plate is matched with the rear die bottom plate, and a main guide post matched with the first fixing plate, the second fixing plate and the third fixing plate is arranged on the rear die bottom plate.

As a further improvement of the design, the front mold movable plate is provided with a front mold cooling column, the rear mold fixing plate is provided with a rear mold cooling column, the front mold cooling column is coaxial with the front mold core and is inserted into the front mold core, the rear mold cooling column is coaxial with the rear mold core and is inserted into the rear mold core, and spiral cooling water tanks are arranged on the outer surfaces of the front mold cooling column and the rear mold cooling column.

As a further improvement of the design, at least three injection nozzles are arranged at the rear side of the pouring gate, and the injection nozzles are distributed in an annular array around the axis of the front mold core.

The beneficial effects of the utility model are as follows: according to the utility model, the front mold core is arranged on the front mold movable plate, and the rear mold core is arranged on the rear mold movable plate, so that the rear mold core is firstly separated from the injection molding piece during demolding, then the rear mold core is separated from the injection molding piece, demolding is facilitated, the front mold material returning spring can ensure that the front mold core and the rear mold core are in a mold closing state during demolding, the injection molding piece is demolded step by step, and normal demolding of a product is facilitated.

Drawings

The utility model will be further described with reference to the drawings and examples.

Fig. 1 is a schematic view of a horizontal cross section of the present utility model.

Fig. 2 is a schematic vertical center section of the present utility model.

Fig. 3 is a schematic vertical cross-sectional view of the position of the main column of the present utility model.

Fig. 4 is a schematic view of a vertical section of the rear mold pillar according to the present utility model.

FIG. 5 is a schematic vertical cross-sectional view of the clamp post of the present utility model.

In the figure, 1, a rear mold bottom plate, 2, a second fixed plate, 3, a third fixed plate, 4, a rear mold fixed plate, 5, a rear mold movable plate, 6, a front mold movable plate, 7, a front mold bottom plate, 8, a front mold fixed plate, 9, a front mold core, 10, a front mold core, 11, a rear mold core, 12, a rear mold core, 13, a rear mold cooling column, 14, a front mold cooling column, 15, a pouring gate, 16, a first fixed plate, 17, a rear mold material returning spring, 18, a cooling water tank, 19, an injection nozzle, 20, a rear mold guide column, 21, a rear mold top column, 22, a front mold material returning spring, 23, a main guide column, 24, a cushion block and 25.

Detailed Description

The present utility model will now be described in detail with reference to the drawings and the specific embodiments thereof, wherein the exemplary embodiments and the description are for the purpose of illustrating the utility model only and are not to be construed as limiting the utility model.

Examples: referring to fig. 1 to 5, an injection mold for plastic parts of cylindrical shells comprises a rear mold base 1, a cushion block 24 disposed at the front side of the rear mold base 1, a rear mold fixing plate 4 disposed at the front side of the cushion block 24, a rear mold movable plate 5 disposed in front of the rear mold fixing plate 4, a rear mold core 11 disposed in the center of the front side of the rear mold movable plate 5, a front mold movable plate 6 disposed in front of the rear mold movable plate 5, a front mold fixing plate 8 disposed in front of the front mold movable plate 6, a front mold base 7 disposed at the front side of the front mold fixing plate 8, a front mold core 10 disposed in the center of the rear side of the front mold movable plate 6, a first fixing plate 16, a second fixing plate 2 and a third fixing plate 3 disposed in sequence from the rear to the front side of the rear mold base 1, a rear mold core 12 penetrating the rear mold core 11 forward is disposed at the front side of the rear mold fixing plate 4, the front side of the front mold movable plate 6 is provided with a front mold core 9 which backwards penetrates through the front mold core 10, the outer surfaces of the front mold core 9 and the rear mold core 12 are profiling surfaces of the inner cavity of the cylindrical shell plastic part, the front mold bottom plate 7 is provided with a gate 15, the gate 15 extends to the mold cavity of the front mold core 9 and the rear mold core 12, the third fixed plate 3 is provided with a rear mold guide post 20 which extends forwards and is matched with the rear mold movable plate 5, the second fixed plate 2 is provided with a rear mold jacking post 21 connected with the rear mold movable plate 5, a rear mold material returning spring 17 is connected between the rear mold bottom plate 1 and the second fixed plate 2, the rear mold material returning spring 17 applies forward elastic force to the second fixed plate 2, a front mold material returning spring 22 is arranged between the front mold fixed plate 8 and the front mold movable plate 6, the front die material returning spring 22 applies backward elasticity to the front die movable plate 6, the front die bottom plate 7 is provided with a die clamping guide post 25 extending backward, the die clamping guide post 25 is respectively matched with the front die movable plate 6, the rear die movable plate 5 and the rear die fixed plate 4, and the rear die bottom plate 1 is provided with a main guide post 23 matched with the first fixed plate 16, the second fixed plate 2 and the third fixed plate 3.

In the design, the front die core 10 is arranged on the front die movable plate 6, the rear die core 11 is arranged on the rear die movable plate 5, so that when the die is removed, the rear die core 12 is firstly separated from an injection molding piece, then the rear die core 11 is separated from the injection molding piece, the die removal is convenient, the front die material returning spring 22 can ensure that the rear die core 12 is in a die clamping state when the front die core 10 and the rear die core 11 are in die clamping state, the injection molding piece is subjected to step-by-step die removal, and the product is convenient to normally remove.

Referring to fig. 2, in the present embodiment, the front mold moving plate 6 is provided with a front mold cooling post 14, the rear mold fixing plate 4 is provided with a rear mold cooling post 13, the front mold cooling post 14 is coaxial with the front mold core 9 and is inserted into the front mold core 9, the rear mold cooling post 13 is coaxial with the rear mold core 12 and is inserted into the rear mold core 12, and spiral cooling water tanks 18 are respectively provided on the outer surfaces of the front mold cooling post 14 and the rear mold cooling post 13. The spiral cooling water grooves 18 on the rear mold cooling column 13 and the front mold cooling column 14 improve the cooling effect of the front mold core 9 and the rear mold core 12, and the cooling device is simple in structure and good in cooling effect.

Referring to fig. 2, in this embodiment, at least three injection nozzles 19 are disposed at the rear side of the gate 15, and the injection nozzles 19 are distributed in an annular array around the axis of the front mold core 9. The casting speed is high during injection molding, and the insufficient casting is effectively prevented.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides an injection mold suitable for tubular casing working of plastics, its characterized in that includes back die bottom plate, set up in the cushion of back die bottom plate front side, set up in the back die fixed plate of cushion front side, set up in the back die fly leaf of back die fly leaf front side center inside back mould benevolence, set up in the front mould fly leaf front side of back mould fly leaf, set up in the front die fixed plate of front mould fly leaf front side, set up in the front die bottom plate of front side of front die fixed plate, set up in the front mould benevolence of front mould fly leaf rear side center, back die bottom plate front side is from back forward in proper order is equipped with first fixed plate, second fixed plate, third fixed plate, back die fixed plate front side is equipped with the back mold core that runs through back mould benevolence forward, front mould fly leaf front side is equipped with the front mold core that runs through backward the front mould benevolence, the front mold core and the outer surface of the rear mold core are profiling surfaces of the inner cavity of the cylindrical shell plastic part, a gate is arranged on a front mold bottom plate, the gate extends to the die cavity of the front mold core and the die cavity of the rear mold core, a rear mold guide post which extends forwards and is matched with a rear mold movable plate is arranged on a third fixed plate, a rear mold jacking post which is connected with the rear mold movable plate is arranged on a second fixed plate, a rear mold material returning spring is connected between the rear mold bottom plate and the second fixed plate, a forward elastic force is applied to the second fixed plate by the rear mold material returning spring, a backward elastic force is applied to the front mold movable plate by the front mold material returning spring, a backward extending die clamping guide post is arranged on the front mold bottom plate, and the die clamping guide post is respectively connected with the front mold movable plate, the front mold movable plate and the rear mold material returning spring is arranged between the front mold movable plate and the front mold movable plate, the rear die movable plate is matched with the rear die fixed plate, and the rear die bottom plate is provided with a main guide post matched with the first fixed plate, the second fixed plate and the third fixed plate.

2. The injection mold for plastic parts of tubular shells according to claim 1, wherein the front mold moving plate is provided with a front mold cooling column, the rear mold fixing plate is provided with a rear mold cooling column, the front mold cooling column is coaxial with the front mold core and is inserted into the front mold core, the rear mold cooling column is coaxial with the rear mold core and is inserted into the rear mold core, and spiral cooling water tanks are arranged on the outer surfaces of the front mold cooling column and the rear mold cooling column.

3. An injection mould for plastic parts of tubular housings according to claim 2, wherein the gate is provided at the rear side with at least three injection nozzles distributed in an annular array about the front mould core axis.