CN223532945U

CN223532945U - An injection mold for plastic parts with automatic demolding

Info

Publication number: CN223532945U
Application number: CN202423170927.8U
Authority: CN
Inventors: 赖源; 朱艾萍
Original assignee: Foshan Jiasheng Mold Co ltd
Current assignee: Foshan Jiasheng Mold Co ltd
Priority date: 2024-12-23
Filing date: 2024-12-23
Publication date: 2025-11-11
Anticipated expiration: 2034-12-23

Abstract

This utility model discloses an automatic demolding injection mold for plastic parts, including a fixed plate. A lower mold is fixedly connected to the upper surface of the fixed plate, and an upper mold is movably connected to the upper surface of the lower mold. A top plate is slidably and sealed to the inner bottom wall of the lower mold. Two symmetrical ejector rods are fixedly connected to the lower surface of the top plate, and the ejector rods are slidably and sealed to the lower mold. A positioning frame is fixedly connected to the lower surface of the fixed plate, and a fixing block is fixedly connected to the positioning frame. An electric telescopic column is fixedly connected to the fixing block. Through the docking of the lower mold and the upper mold, rapid injection molding can be performed into the mold. After the injection molding and cooling are completed, the upper mold separates from the lower mold, the electric telescopic column extends, and moves with the extrusion block, causing the extrusion block to press against the force block, causing the force block to press the force block upward, thereby causing the two ejector rods to slide with the lower mold and move the top plate upward, performing rapid demolding of the injection molded product, improving the efficiency of mold use and work efficiency.

Description

Plastic part injection mold capable of automatically demolding

Technical Field

The utility model relates to the technical field of injection molds, in particular to an automatic demolding plastic part injection mold.

Background

An injection mold is a tool for producing plastic products, and is generally made of steel or the like, and has a specific shape and structure for injecting molten plastic material thereinto, and then cooling and molding in the mold, to finally obtain plastic products of a desired shape.

The existing injection mold is used for realizing the production of injection products by carrying out quick injection molding in the mold to cool and mold the injection products, but in the process of actual use, the injection products are easy to adhere or block with the mold in the process of cooling and molding the injection products, so that the injection products cannot be quickly taken out, the working efficiency is influenced, and therefore, the plastic part injection mold capable of automatically demolding is provided, and the problem is solved.

Disclosure of utility model

The utility model aims to provide an injection mold for plastic parts capable of automatically demolding, which can be used for rapidly injecting plastic into the mold through butt joint of a lower mold and an upper mold, wherein after injection cooling is finished, the upper mold is separated from the lower mold, an electric telescopic column stretches out and moves along with an extrusion block, so that the extrusion block extrudes a stress block, and the stress block is extruded by the extrusion block to move upwards, so that two ejector rods slide with the lower mold and move upwards along with a top plate, rapid demolding treatment is performed on injection products, the use efficiency of the mold is improved, and the working efficiency is improved.

The plastic part injection mold comprises a fixed plate, wherein the upper end face of the fixed plate is fixedly connected with a lower mold, the upper end face of the lower mold is movably connected with an upper mold, the upper wall of the lower mold is connected with a top plate in a sealing sliding manner, the lower end face of the top plate is fixedly connected with two symmetrical ejector rods, the ejector rods are connected with the lower mold in a sealing sliding manner, the lower end face of the fixed plate is fixedly connected with a positioning frame, the positioning frame is fixedly connected with a fixed block, an electric telescopic column is fixedly connected onto the fixed block, the movable end of the electric telescopic column is fixedly connected with an extrusion block, the upper end face of the extrusion block is provided with a chamfer, the upper end face of the extrusion block is fixedly connected with a stress block, the upper end face of the stress block is fixedly connected with a connecting plate, the connecting plate is fixedly connected with the ejector rods, the lower end face of the extrusion block is fixedly connected with a moving block, and the moving block is in sliding connection with the positioning frame.

The injection molding cooling device has the beneficial effects that injection molding cooling treatment can be carried out in the mould through the butt joint of the upper mould and the lower mould, and the injection molding cooling treatment is carried out in cooperation with the lifting of the upper mould, and the extrusion block is moved along with the extrusion block to extrude the stress block, so that the stress block is moved upwards along with the two ejector rods and the top plate, the injection molding product in the lower mould is rapidly jacked, the rapid demolding treatment is facilitated, and the problems of adhesion or clamping of the injection molding product and troublesome demolding are prevented;

in order to realize rapid demoulding treatment of injection products;

As a further improvement of the technical scheme, the upper end face of the fixing plate is fixedly connected with two symmetrical fixing columns, lifting grooves are formed in one side, opposite to the fixing columns, of the fixing columns, lifting blocks are connected in the lifting grooves in a sliding mode, fixing blocks are fixedly connected to one side, opposite to the lifting blocks, of the fixing blocks, the fixing blocks are fixedly connected with the upper die, one of the fixing columns is fixedly connected with a positive motor and a negative motor, the output end of the positive motor is connected with a screw rod, and the screw rod is in threaded connection with one of the lifting blocks.

The improved structure has the beneficial effects that through the running of the positive and negative motor, the screw rod is in threaded connection with one lifting block, so that the lifting of the lifting block is realized, the lifting block carries the retention block and the upper die to be lifted quickly, the other lifting block and the corresponding retention block are lifted correspondingly, the upper die can be moved quickly, the demolding treatment can be carried out conveniently, and the working efficiency can be improved;

In order to realize flexible lifting of the upper die;

As a further improvement of the technical scheme, a limiting groove is formed in the inner bottom wall of the positioning frame, a limiting block is connected in a sliding mode in the limiting groove, and the limiting block is fixedly connected with the moving block.

The improved structure has the beneficial effects that through the use of the limiting groove and the limiting block, the moving block can be guided, so that the extrusion block and the moving block are ensured to be stable enough and not to be inclined and rocked in the moving process;

In order to limit the moving block, the stability of the extrusion block is ensured;

as a further improvement of the technical scheme, the other lifting block is connected with a guide rod in a sliding manner, and the guide rod is fixedly connected with the fixed column.

The improved lifting block has the beneficial effects that through the use of the guide rod, the corresponding lifting block can slide on the surface of the guide rod, so that the lifting block is stable enough in the lifting process, and the problem of skew clamping is prevented;

in order to realize guiding of the lifting block;

As a further improvement of the technical scheme, one side of the lower die is fixedly connected with an injection molding pipe, the injection molding pipe is communicated with the lower die, and the injection molding pipe is fixedly connected with one of the fixing columns.

The improved injection molding device has the beneficial effects that through the use of the injection molding pipe, rapid injection molding can be performed in the mold, so that the injection molding product is convenient to cool and mold, and the stable conveying of injection molding materials into the mold is ensured;

in order to achieve stable injection molding production in the mold;

As a further improvement of the technical scheme, the four corners of the lower end surface of the fixed plate are fixedly connected with supporting frames.

The improved structure has the beneficial effects that the fixing plate can be supported by the support frame, so that the fixing plate is ensured to be stable enough in the use process and does not skew or shake;

In order to realize the support stabilization of the fixed plate;

as a further improvement of the technical scheme, the support frame is provided with a positioning hole.

The improved structure has the beneficial effects that the support frame can be fixed through the use of the positioning holes, so that the support frame is stable enough and does not skew or shake in the process of supporting and using;

in order to achieve the fixation of the support frame.

Drawings

FIG. 1 is a schematic view of an isometric structure provided by the present utility model;

FIG. 2 is a top view provided by the present utility model;

FIG. 3 is a perspective cross-sectional view taken along line A-A of FIG. 2 in accordance with the present utility model;

fig. 4 is an enlarged view of a portion a in fig. 3 provided by the present utility model.

In the figure, 1, a fixed plate, 10, a lower die, 11, an upper die, 12, a top plate, 13, a push rod, 14, a locating rack, 15, a fixed block, 16, an electric telescopic column, 17, an extrusion block, 18, a chamfer, 19, a stress block, 20, a connecting plate, 21, a moving block, 31, a fixed column, 32, a lifting groove, 33, a lifting block, 34, a locating block, 35, a positive and negative motor, 36, a screw rod, 41, a limiting groove, 42, a limiting block, 51, a guide rod, 61, an injection molding pipe, 71, a support frame, 81 and a locating hole.

Detailed Description

In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.

As shown in fig. 1 to 4, the plastic part injection mold capable of automatically demolding provided by the embodiment of the utility model comprises a fixed plate 1, wherein the upper end surface of the fixed plate 1 is fixedly connected with a lower mold 10, the upper end surface of the lower mold 10 is movably connected with an upper mold 11, one side of the lower mold 10 is fixedly connected with an injection molding pipe 61, the injection molding pipe 61 is communicated with the lower mold 10, the injection molding pipe 61 is fixedly connected with one of fixing columns 31, the injection molding pipe 61 is matched with the use of the injection molding pipe 61 through the butt joint between the upper mold 11 and the lower mold 10, the injection molding is carried out in the mold, the cooling molding treatment is carried out, the upper bottom wall of the lower mold 10 is in sealing sliding connection with a top plate 12, the lower end surface of the top plate 12 is fixedly connected with two symmetrical ejector rods 13, the ejector rods 13 are in sealing sliding connection with the lower mold 10, the lower end surface of the fixed plate 1 is fixedly connected with a positioning frame 14, the positioning frame 14 is fixedly connected with a fixing block 15, the fixing block 15 is fixedly connected with an electric telescopic column 16, the movable end of the electric telescopic column 16 is fixedly connected with an extrusion block 17, the upper end surface of the extrusion block 17 is provided with a chamfer 18, the upper end surface of the extrusion block 17 is slidably connected with a stress block 19, the upper end surface of the stress block 19 is fixedly connected with a connecting plate 20, the connecting plate 20 is fixedly connected with a push rod 13, the lower end surface of the extrusion block 17 is fixedly connected with a moving block 21, the moving block 21 is slidably connected with a positioning frame 14, the extrusion block 17 extrudes the stress block 19 in cooperation with the extension of the electric telescopic column 16, the chamfer 18 slides on a second chamfer, the stress block 19 carries two push rods 13 and a top plate 12 to move upwards, the injection molding product in a lower mold 10 is rapidly demoulded, the upper end surface of the fixed plate 1 is fixedly connected with two symmetrical fixed columns 31, one side opposite to the two fixed columns 31 is provided with a lifting groove 32, the lifting groove 32 is slidably connected with a lifting block 33, the opposite side of two lifting blocks 33 is all fixedly connected with retainer block 34, retainer block 34 and last mould 11 fixed connection, one of them fixed column 31 up end fixedly connected with positive negative motor 35, positive negative motor 35 output is connected with screw rod 36, screw rod 36 and one of them lifting block 33 spiro union, sliding connection has guide bar 51 on another lifting block 33, guide bar 51 and fixed column 31 fixed connection, through the operation of positive negative motor 35, make the spiro union between screw rod 36 and one of them lifting block 33, make lifting block 33 go up and down, another lifting block 33 slides on guide bar 51, thereby realize the quick rising of last mould 11, set up spacing groove 41 on the diapire in the locating rack 14, sliding connection has stopper 42 in spacing groove 41, stopper 42 and movable block 21 fixed connection, the use of spacing groove 41 and stopper 42, can be spacing to movable block 21, guarantee the in-process that movable block 21 removed, the four corners department of fixed plate 1 all fixed connection has support frame 71, set up locating hole 81 on the support frame 71, through four support frame 71 can be used to carry out the fixed plate 1, can guarantee that the fixed plate 1 takes place in the stable process, 1 is stable through guaranteeing the fixed plate, 1, the fixed plate can be used in the fixed position is guaranteed to take place in the fixed hole is stable process.

When the plastic injection molding machine is used, firstly, the fixing plate 1 is fixed through the four supporting and corresponding positioning holes 81, so that the stability is enough in the use process, the screw rod 36 and one lifting block 33 are in screw connection through the operation of the positive and negative motor 35, the other lifting block 33 slides on the guide rod 51, the upper mold 11 moves downwards, is in butt joint with the upper mold 11, is matched with the use of the injection pipe 61, performs stable injection molding in the mold, enables an injection product to be rapidly cooled and molded, after the injection molding, the positive and negative motor 35 is reversed, the upper mold 11 moves upwards and is separated from the lower mold 10, and the extrusion block 17 extrudes the stress block 19 under the action of the electric telescopic column 16, so that the stress block 19 carries the connecting plate 20 and the two ejector rods 13, and the top plate 12 performs rapid demoulding treatment on the injection mould, thereby realizing the use process of the whole plastic injection molding machine.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The plastic part injection mold capable of automatically demolding comprises a fixed plate (1) and is characterized in that the upper end surface of the fixed plate (1) is fixedly connected with a lower mold (10), the upper end surface of the lower mold (10) is movably connected with an upper mold (11), a top plate (12) is connected on the inner bottom wall of the lower mold (10) in a sealing sliding manner, two symmetrical ejector rods (13) are fixedly connected with the lower end surface of the top plate (12), and the ejector rods (13) are connected with the lower mold (10) in a sealing sliding manner;

Terminal surface fixedly connected with locating rack (14) under fixed plate (1), fixedly connected with fixed block (15) on locating rack (14), fixedly connected with electric telescopic column (16) on fixed block (15), electric telescopic column (16) expansion end fixedly connected with extrusion piece (17), chamfer (18) have been seted up to extrusion piece (17) up end, extrusion piece (17) up end sliding connection has atress piece (19), atress piece (19) up end fixedly connected with connecting plate (20), connecting plate (20) with ejector pin (13) fixed connection, terminal surface fixedly connected with movable block (21) under extrusion piece (17), movable block (21) with locating rack (14) sliding connection.

2. The plastic part injection mold capable of automatically demolding according to claim 1, wherein two symmetrical fixing columns (31) are fixedly connected to the upper end face of the fixing plate (1), lifting grooves (32) are formed in one side, opposite to the fixing columns (31), of the fixing plates, lifting blocks (33) are connected in the lifting grooves (32) in a sliding mode, fixing blocks (34) are fixedly connected to one side, opposite to the lifting blocks (33), of the fixing blocks (34) and fixedly connected with the upper mold (11), a positive motor (35) is fixedly connected to the upper end face of one fixing column (31), a screw rod (36) is connected to the output end of the positive motor (35), and the screw rod (36) is in threaded connection with one lifting block (33).

3. The plastic part injection mold capable of automatically demolding according to claim 1, wherein the inner bottom wall of the positioning frame (14) is provided with a limiting groove (41), a limiting block (42) is connected in a sliding manner in the limiting groove (41), and the limiting block (42) is fixedly connected with the moving block (21).

4. The injection mold for plastic parts capable of being automatically demolded according to claim 2, wherein the other lifting block (33) is slidably connected with a guide rod (51), and the guide rod (51) is fixedly connected with the fixing column (31).

5. The plastic part injection mold capable of automatically demolding according to claim 2, wherein an injection molding pipe (61) is fixedly connected to one side of the lower mold (10), the injection molding pipe (61) is communicated with the lower mold (10), and the injection molding pipe (61) is fixedly connected with one of the fixing columns (31).

6. The plastic part injection mold capable of automatically demolding according to claim 1, wherein supporting frames (71) are fixedly connected to four corners of the lower end surface of the fixing plate (1).

7. The plastic part injection mold capable of being automatically demolded as claimed in claim 6, wherein the supporting frame (71) is provided with a positioning hole (81).