CN222328925U

CN222328925U - Small slide structure for molding plastic part mold

Info

Publication number: CN222328925U
Application number: CN202420224009.XU
Authority: CN
Inventors: 幸东; 贺海彪
Original assignee: Sunway Plastic & Electronic Zhuhai Co ltd
Current assignee: Sunway Plastic & Electronic Zhuhai Co ltd
Priority date: 2024-01-30
Filing date: 2024-01-30
Publication date: 2025-01-10
Anticipated expiration: 2034-01-30

Abstract

The utility model discloses a small slide structure for plastic parts mold forming, comprising a lower mold core arranged in a lower mold plate and an upper mold core arranged in an upper mold plate, wherein a slide bottom plate is arranged inside the lower mold core, and the top of the slide bottom plate is movably connected to two small slides through an upper slide pressure plate, and an oil cylinder is fixed on one side of the lower mold plate, and the telescopic end of the oil cylinder penetrates the lower mold plate and is inserted under the lower mold core, and the telescopic end of the oil cylinder is connected to a V-shaped moving block, and movable square shifting blocks are connected to the two sides of the V-shaped moving block through a small track assembly, and two moving grooves are provided on the top surface of the slide bottom plate, and a shifting rod that passes through the moving groove and is inserted into the inside of the small slide is fixed to the top of the square shifting block, and a V-shaped moving block connected to the oil cylinder is designed, so that the V-shaped moving block is driven to move when the oil cylinder is telescoped, and the V-shaped moving block drives the square shifting block to move toward the middle through the small track assembly, so that the two small slides can stably move toward the middle, and the small slide is separated from the product.

Description

Small slide structure for molding plastic part mold

Technical Field

The utility model relates to the field of plastic part mold forming, in particular to a small slide structure for plastic part mold forming.

Background

A plastic mold is a short term for a combination mold for compression molding, extrusion molding, injection, blow molding, and low foaming molding. The coordination change of the male die, the female die and the auxiliary forming system can process a series of plastic parts with different shapes and different sizes. The mold is a tool for producing plastic products and also a tool for endowing the plastic products with complete structures and precise dimensions. Injection molding is a process used in mass production of parts of complex shape. Specifically, the heated and melted plastic is injected into a die cavity under high pressure by an injection molding machine, and a formed product is obtained after cooling and solidification.

In the use process of the die, certain structures with complex structures are required to be made into row positions, the die is opened and closed to be demoulded or reset in advance, the conventional row position method is to drive the row positions by using inclined guide posts, but for some small row position dies, the small inclined guide posts are not suitable, the small inclined guide posts are mainly insufficient in strength and slender, are easy to deform and even break when the die is closed and stressed, and the broken parts damage the die in the process of closing the die.

Disclosure of utility model

In order to overcome the defects in the prior art, the utility model provides a small line position structure formed by a plastic part die, which enables two small line positions to stably move to the middle and enables the small line positions to be separated from products.

The technical scheme includes that the small slide structure comprises a lower die core arranged in a lower die plate and an upper die core arranged in an upper die plate, a slide bottom plate is arranged in the lower die core, two small slide positions are movably connected to the top of the slide bottom plate through a slide upper plate, an oil cylinder is fixed to one side of the lower die plate, a telescopic end of the oil cylinder penetrates through the lower die plate and then is inserted below the lower die core, a V-shaped moving block is connected to the telescopic end of the oil cylinder, two sides of the V-shaped moving block are connected with movable square shifting blocks through small rail assemblies, two moving grooves are formed in the top surface of the slide bottom plate, a shifting rod penetrating through the moving grooves and inserted into the small slide is fixed to the top end of the square shifting blocks, and the small slide is indirectly driven to move through cooperation of small rail assemblies between the V-shaped moving blocks and the square shifting blocks.

As a preferable technical scheme of the utility model, inclined planes are arranged on opposite sides of the two small rows, and the bottom end of the upper die core is fixed with an extrusion block matched with the inclined planes.

As a preferable technical scheme of the utility model, limit grooves are formed in the ridge line position below one side of the upper press plate with the smaller row position, and limit flanges matched with the limit grooves are arranged at the bottoms of the two sides of the smaller row position.

As a preferable technical scheme of the utility model, the small rail assembly comprises a guide groove and guide strips, the two sides of the V-shaped moving block, which are opposite to the square shifting block, are respectively provided with the guide grooves, the guide strips which are clamped with the guide grooves are respectively arranged on one side of the square shifting block, which is opposite to the V-shaped moving block, and inclined surfaces which are matched with the square shifting block are respectively arranged on the two sides of the V-shaped moving block.

As a preferable technical scheme of the utility model, a T-shaped circular stepped shaft is fixed at the telescopic end of the oil cylinder, and a T-shaped connecting groove is formed in the center of one side of the V-shaped moving block, which faces the oil cylinder.

As a preferable technical scheme of the utility model, a positioning block is fixed in the lower die plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. The V-shaped moving block connected with the oil cylinder is designed, so that the oil cylinder drives the V-shaped moving block to move when stretching out and drawing back, and a small rail assembly is arranged between the V-shaped moving block and the square shifting block, so that when the oil cylinder stretches out and draws back, the V-shaped moving block drives the square shifting block to move towards the middle through the small rail assembly, and the two small line positions stably move towards the middle, so that the small line positions are separated from a product;

2. Through designing two moving grooves formed in the top surface of the line position bottom plate, the square shifting block can drive the shifting rod to move without being blocked, and meanwhile, the shifting rod is inserted into the small line position, so that the shifting rod can drive the small line position to move when moving;

3. Through the design set up at the opposite inclined plane of little line position and fix the extrusion piece in last mould benevolence bottom surface, when the compound die, make extrusion piece can be with little line position withhold, prevent that the position deviation of little line position from leading to product size error.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a plastic part mold according to the present utility model;

FIG. 2 is a schematic diagram of the internal structure of the plastic part mold according to the present utility model;

FIG. 3 is a schematic perspective view of a small row structure according to the present utility model;

FIG. 4 is a schematic view of another perspective view of the small row structure of the present utility model;

FIG. 5 is a schematic view of a three-dimensional exploded view of the small line structure of the present utility model;

FIG. 6 is a schematic cross-sectional view of FIG. 2 according to the present utility model;

The device comprises a die bottom plate, 2 parts of square iron, 3 parts of a lower die plate, 4 parts of an oil cylinder, 5 parts of an upper die plate, 6 parts of a hot runner plate, 7 parts of a top plate, 8 parts of a lower die core, 9 parts of an upper die core, 10 parts of a small row position, 11 parts of an extrusion block, 12 parts of a square shifting block, 13 parts of a positioning block, 14 parts of a V-shaped moving block, 15 parts of a shifting rod, 16 parts of a row position bottom plate, 17 parts of a row position upper die plate, 18 parts of a T-shaped circular stepped shaft, 19 parts of a T-shaped connecting groove, 20 parts of a guide bar, 21 parts of a guide groove, 22 parts of a limiting groove, 23 parts of a limiting flange, 24 parts of a moving groove.

Detailed Description

In order that the manner in which the above recited features, objects and advantages of the present utility model are obtained will become readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. Based on the examples in the embodiments, those skilled in the art can obtain other examples without making any inventive effort, which fall within the scope of the utility model.

Examples

Referring to fig. 1, the utility model provides a small slide structure for molding a plastic part mold, the plastic part mold comprises a mold bottom plate 1, square irons 2 are symmetrically arranged on the top surface of the mold bottom plate 1, a lower mold plate 3 is fixed on the top end of the square irons 2, an upper mold plate 5 is arranged on the top surface of the lower mold plate 3, a hot runner plate 6 is fixed on the top surface of the upper mold plate 5, and a top plate 7 is fixed on the top surface of the hot runner plate 6;

As shown in fig. 2-6, a cavity for accommodating the lower cavity 8 is formed in the top surface of the lower die plate 3, a part cavity is formed in the bottom of the lower cavity 8, oil cylinders 4 are fixed on two sides of the lower die plate 3, telescopic ends of the oil cylinders 4 are inserted into the part cavity of the lower die plate 3, a V-shaped moving block 14 is arranged in the part cavity, a T-shaped connecting groove 19 is formed in one side of the V-shaped moving block 14 opposite to the oil cylinders 4, a T-shaped circular stepped shaft 18 is fixed at the telescopic end of the oil cylinders 4, the T-shaped circular stepped shaft 18 can be placed into the T-shaped connecting groove 19, so that the oil cylinders 4 are connected with the V-shaped moving block 14, when the oil cylinders 4 stretch, the oil cylinders 4 can drive the V-shaped moving block 14 to move, positioning blocks 13 are fixed in the part cavity, and the positions of the V-shaped moving block 14 are limited by the positioning blocks 13;

As shown in fig. 2-6, two square shifting blocks 12 positioned at two sides of a V-shaped moving block 14 are arranged in a part cavity, one surface of the square shifting block 12 opposite to the V-shaped moving block 14 is provided with an inclined surface I, one surface of the V-shaped moving block 14 opposite to the square shifting block 12 is provided with an inclined surface I with the same angle, two sides of the V-shaped moving block 14 opposite to the square shifting block 12 are provided with guide grooves 21, and one side of the square shifting block 12 opposite to the V-shaped moving block 14 is provided with guide strips 20 which are engaged with the guide grooves 21, so that when the V-shaped moving block 14 moves, the square shifting block 12 can move relatively or oppositely through the cooperation of the guide strips 20 and the guide grooves 21;

As shown in fig. 2-6, a placing cavity is formed in the top surface of the lower die core 8, a row position bottom plate 16 is fixed in the placing cavity, two moving grooves 24 are symmetrically formed in the center of the top surface of the row position bottom plate 16, two small row positions 10 are formed in the top surface of the row position bottom plate 16, a product is arranged on the surface, facing outwards, of the small row positions 10, when the two small row positions 10 move towards each other, the small row positions 10 are separated from the product, the small row positions 10 are located above the moving grooves 24, two limiting flanges 23 are arranged at the bottoms of the two sides of the moving grooves 24, a row position upper pressing plate 17 is fixed at the top of the row position bottom plate 16 through screws, a limiting groove 22 is formed in the edge line of one side of the row position upper pressing plate 17 facing the small row positions 10, after the row position upper pressing plate 17 is fixed, the small row positions 10 can be guided through the clamping of the limiting grooves 22 and the limiting flanges 23, and a deflector rod 15 penetrating through the moving grooves 24 and inserted into the small row positions 10 is fixed on the top surface of the square deflector block 12;

As shown in fig. 4-6, two opposite sides of the small row position 10 are provided with inclined planes II, the inclined direction is upward, the bottom surface of the upper die core 9 is fixed with an extrusion block 11, and the other edges of the bottom of the extrusion block 11 are provided with inclined planes II with the same angle;

The specific working principle is as follows:

When the die is closed, the oil cylinder 4 is started first, the line is reset first, specifically, the V-shaped moving block 14 is pushed to the inside of the lower die plate 3 through the oil cylinder 4, the V-shaped moving block 14 is tightly attached to the positioning block 13, the two square shifting blocks 12 simultaneously move outwards through the cooperation of the guide strip 20, the guide groove 21 and the inclined plane I, the square shifting blocks 12 drive the two small line positions 10 to move reversely, meanwhile, after the die is closed, the lower die core 8 and the upper die core 9 are attached, the two small line positions 10 are tightly abutted to two sides through the inclined plane II by the extrusion block 11 at the bottom of the upper die core 9, the small line positions 10 are prevented from shaking, and at the moment, the die is closed by the A plate and the B plate through the action of the extrusion block 11 and the V-shaped moving block 14, and the thimble plate is reset. The stability of the small line position 10 is ensured, and the accuracy of the product size is ensured;

when the die is opened, the die is opened firstly, then the oil cylinder 4 drives the row position to leave the product back-off, specifically, the oil cylinder 4 is started, the oil cylinder 4 contracts to drive the V-shaped moving block 14 to move outwards, the V-shaped moving block 14 drives the square shifting block 12 to move oppositely through the cooperation of the guide strip 20 and the guide groove 21, the small row position 10 is driven to move oppositely through the shifting rod 15, the small row position 10 is separated from the product, and then the ejector pins on the ejector pin plate eject the product to drop, so that the die opening effect is realized.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fashioned little line position structure of plastic part mould, includes lower mould benevolence (8) and the last mould benevolence (9) of setting in cope match-plate pattern (5) in lower bolster (3), wherein, the inside of lower mould benevolence (8) is provided with line position bottom plate (16), the top of line position bottom plate (16) is through going position top plate (17) swing joint has two little line positions (10), one side of lower bolster (3) is fixed with hydro-cylinder (4), insert the below of lower mould benevolence (8) behind hydro-cylinder (4) run through lower bolster (3), the flexible end of hydro-cylinder (4) is connected with V-arrangement movable block (14), the both sides of V-arrangement movable block (14) are connected with mobilizable square shifting block (12) through little track subassembly, two movable shifting grooves (24) have been seted up to the top surface of line position bottom plate (16), the top of square shifting block (12) is fixed with and passes shifting rod (15) of shifting the inside of shifting position (10), when moving between V-arrangement movable block (14) and small track subassembly (14) are driven.

2. The small line position structure formed by the plastic part mold according to claim 1, wherein inclined surfaces are arranged on opposite sides of the two small line positions (10), and an extrusion block (11) matched with the inclined surfaces is fixed at the bottom end of the upper mold core (9).

3. The small line structure for molding plastic parts according to claim 1, wherein limit grooves (22) are formed in the ridge line of the upper line pressing plate (17) below one side of the small line (10), and limit flanges (23) matched with the limit grooves (22) are arranged at the bottoms of two sides of the small line (10).

4. The small line position structure for molding plastic parts according to claim 1, wherein the small rail assembly comprises a guide groove (21) and guide strips (20), the guide grooves (21) are formed in two sides of the V-shaped moving block (14) opposite to the square shifting block (12), the guide strips (20) clamped with the guide grooves (21) are arranged in one side of the square shifting block (12) opposite to the V-shaped moving block (14), and inclined planes matched with the square shifting block (12) are formed in two sides of the V-shaped moving block (14).

5. The small line structure formed by the plastic part mold according to claim 1, wherein the telescopic end of the oil cylinder (4) is fixedly provided with a T-shaped circular stepped shaft (18), and a T-shaped connecting groove (19) is formed in the center of one side of the V-shaped moving block (14) facing the oil cylinder (4).

6. The small line structure formed by the plastic part mold according to claim 1 is characterized in that a positioning block (13) is fixed in the lower mold plate (3).