CN220763352U

CN220763352U - Combined plastic mould convenient for demoulding

Info

Publication number: CN220763352U
Application number: CN202322244938.5U
Authority: CN
Inventors: 王青; 李吉球
Original assignee: Feng Yan Precision Mould Co ltd
Current assignee: Feng Yan Precision Mould Co ltd
Priority date: 2023-05-10
Filing date: 2023-08-21
Publication date: 2024-04-12
Anticipated expiration: 2033-08-21

Abstract

The utility model relates to the technical field of injection molds, in particular to a combined plastic mold convenient for demolding, which comprises a bottom mold box, a secondary mold box and an upper mold cover which are sequentially inserted, wherein the upper end of the bottom mold box is connected with the bottom end of the secondary mold box, and the top end of the secondary mold box positioned at the upper part is connected with the bottom of the upper mold cover; a circular mold cavity is formed among the bottom mold box, the secondary mold box, the upper mold cover and the bottom mold cover; the outer side of the upper die cover is provided with a mounting ring, the lower end of the bottom die box is provided with a bottom die cover, and mounting lugs are symmetrically arranged at both ends of the mounting ring and the bottom die cover; the liquid injection holes are symmetrically formed in two sides of the upper surface of the upper die cover, the liquid injection pipe is arranged on the upper surface of the upper die cover through the liquid injection holes, the motor is arranged in the middle of the upper surface of the upper die cover, the lead screw is arranged at the output end of the motor, and the connecting rod is sleeved outside the lead screw. The device reasonable in design can carry out the change of the injection molding chamber that corresponds according to injection molding's plastic tubing size, and the suitability is high, and can realize quick drawing of patterns, promotes injection molding efficiency.

Description

Combined plastic mould convenient for demoulding

Technical Field

The utility model relates to the technical field of injection molds, in particular to a combined plastic mold convenient to demold.

Background

Injection molding refers generally to injection molding. Injection molding is also called injection molding, which is a molding mode of injection and molding, and the method realizes the simplification of the variety and shape of the design and color and the size from small to large.

However, in the prior art, when the injection mold is used for actually producing and manufacturing the plastic pipes with longer injection, the finished product is manufactured by means of splicing, and when the injection mold is used for injection molding of the plastic pipes with smaller size differences in the same batch, the mold needs to be replaced for manufacturing if the injection mold is used for integral molding, so that the cost is high, and the operation is inconvenient. For this reason, there is a need to propose an improvement for solving the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a combined plastic mold convenient to demolding, which can change a corresponding injection cavity according to the size of an injection molded plastic pipeline, has high suitability, can realize quick demolding and improves injection molding efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the combined plastic mold comprises a bottom mold box, a secondary mold box and an upper mold cover which are spliced in sequence, wherein the upper end of the bottom mold box is connected with the bottom end of the secondary mold box, and the top end of the secondary mold box positioned at the upper part is connected with the bottom of the upper mold cover; a circular mold cavity is formed among the bottom mold box, the secondary mold box, the upper mold cover and the bottom mold cover; the outer side of the upper die cover is provided with a mounting ring, the lower end of the bottom die box is provided with a bottom die cover, and mounting lugs are symmetrically arranged at two ends of the mounting ring and the bottom die cover; liquid injection holes are symmetrically formed in two sides of the upper surface of the upper die cover, and liquid injection pipes are arranged on the upper surface of the upper die cover through the liquid injection holes; the middle part of the upper surface of the upper die cover is provided with a motor, the output end of the motor is provided with a screw rod, the screw rod is sleeved with a connecting rod, the connecting rod is horizontal, the lower surfaces of the two ends of the connecting rod are provided with guide rods, the guide rods are spliced with mounting lugs on the mounting ring, and the lower ends of the guide rods are connected with the mounting lugs on the bottom die cover; the connecting rod is "nearly" word form, the ejector pin is all installed to the both sides of connecting rod lower surface, the lower extreme of ejector pin runs through the mould lid and extends to in the die cavity.

Preferably, each of the middle parts of the lower surfaces of the secondary die boxes is provided with a square positioning rod, the middle part of the upper surface of the secondary die box is provided with a positioning hole, and the positioning rods are matched with the positioning holes.

Preferably, a limiting plate is arranged at one end of the screw rod extending to the upper part of the connecting rod, and the diameter of the limiting plate is larger than the diameter of a threaded hole of the screw rod penetrating through the connecting rod.

Preferably, a matching plate is arranged in the middle of the upper surface of the bottom die cover, and the matching plate is matched with the lower part of the bottom die box.

Preferably, the upper die cover is provided with a jack close to the inner side of the liquid injection pipe, and the pushing rod is matched with the jack.

Preferably, the length of the pushing rod is the same as the height formed by the bottom die box, the secondary die box and the upper die cover.

Preferably, when the upper end of the connecting rod is contacted with the limiting plate, the lower end of the pushing rod does not extend into the die cavity.

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

1. through setting up of secondary die box, through increasing or reducing the quantity of secondary die box promptly, specifically through the locating lever with secondary die box bottom and the locating hole phase-grafting of below match the mode fixed, square locating lever and locating hole can also avoid appearing rotatory unfixed condition, reach the change of realizing the die cavity that bottom die box, secondary die box are constituteed, further realization is to the quick change of injection moulding's plastic pipe's size, do benefit to the size quick change in the plastic pipe injection moulding, reduce a large amount of inputs of different size moulds.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a partially disassembled structure of the composite mold of the present utility model;

FIG. 3 is a bottom view of a split structure of the composite mold of the present utility model;

FIG. 4 is a schematic cross-sectional view of the present utility model;

FIG. 5 is a schematic view of the structure of the upper mold cover of the present utility model;

fig. 6 is a schematic structural view of the demolding mechanism of the present utility model.

In the figure: 1. a bottom mold box; 2. a secondary mould box; 3. an upper die cover; 4. a mounting ring; 5. a motor; 6. a connecting rod; 7. a screw rod; 8. a limiting plate; 9. a guide rod; 10. a bottom die cover; 11. matching plates; 12. a positioning rod; 13. positioning holes; 14. a liquid injection pipe; 15. a mold cavity; 16. a pushing rod; 17. and a jack.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.

The combined plastic mould convenient for demoulding shown in the accompanying figures 1-6 comprises a bottom mould box 1, a secondary mould box 2 and an upper mould cover 3 which are spliced in sequence, wherein the upper end of the bottom mould box 1 is connected with the bottom end of the secondary mould box 2, and the top end of the secondary mould box 2 positioned at the upper part is connected with the bottom of the upper mould cover 3; a circular mold cavity 15 is formed among the bottom mold box 1, the secondary mold box 2, the upper mold cover 3 and the bottom mold cover 10; the outer side of the upper die cover 3 is provided with a mounting ring 4, the lower end of the bottom die box 1 is provided with a bottom die cover 10, and mounting lugs are symmetrically arranged at two ends of the mounting ring 4 and the bottom die cover 10; liquid injection holes are symmetrically formed in two sides of the upper surface of the upper die cover 3, and a liquid injection pipe 14 is arranged on the upper surface of the upper die cover 3 through the liquid injection holes; the middle part of the upper surface of the upper die cover 3 is provided with a motor 5, the output end of the motor 5 is provided with a screw rod 7, the screw rod 7 is sleeved with a connecting rod 6, the connecting rod 6 is horizontal, the lower surfaces of the two ends of the connecting rod are provided with guide rods 9, the guide rods 9 are spliced with mounting lugs on the mounting ring 4, and the lower ends of the guide rods 9 are connected with mounting lugs on the bottom die cover 10; the connecting rod 6 is in a shape like a Chinese character 'ji', two sides of the lower surface of the connecting rod 6 are provided with pushing rods 16, and the lower ends of the pushing rods 16 penetrate through the upper die cover 3 and extend into the die cavity 15. Specifically, each of the middle parts of the lower surfaces of the secondary mold boxes 2 is provided with a square positioning rod 12, the middle part of the upper surface of the secondary mold box 2 is provided with a positioning hole 13, and the positioning rods 12 are matched with the positioning holes 13

During operation, through the addding of secondary die box 2, namely through increasing or reducing the quantity of secondary die box 2, specifically through the locating lever 12 with secondary die box 2 bottom and the locating hole 13 looks grafting of below are matchd the mode fixed, square locating lever 12 and locating hole 13 can also avoid appearing rotatory unfixed condition, reach the change of realizing the die cavity 15 that bottom die box 1, secondary die box 2 constitute, further realization is to the quick change of injection moulding's of plastics pipeline's size, does benefit to the quick change of size in the plastics pipeline injection moulding.

Square locating lever 12 is all installed at every inferior die box 2 lower surface middle part, locating hole 13 has been seted up at inferior die box 2's upper surface middle part, locating lever 12 and locating hole 13 assorted, limiting plate 8 is installed to the one end that lead screw 7 extended to connecting rod 6 top, limiting plate 8's diameter is greater than lead screw 7 and passes connecting rod 6's screw hole diameter, die block cover 10's upper surface mid-mounting has cooperation board 11, cooperation board 11 and die block 1's lower part assorted, jack 17 has been seted up to the inboard that upper die cover 3 is close to notes liquid pipe 14, push rod 16 matches with jack 17, the length of push rod 16 is the same with the height that die block 1, inferior die box 2 and upper die cover 3 constitute, when connecting rod 6's upper end contacted with limiting plate 8, the lower extreme of push rod 16 does not extend to in the die cavity 15 this moment.

The working principle of the utility model is as follows:

referring to fig. 1-6 of the specification, in the use process of the plastic mold, molten plastic slurry is connected through a liquid injection pipe 14, and is injected into a mold cavity 15 through the liquid injection pipe 14 and a liquid injection hole, and after injection molding, cooling is completed through an externally arranged cooling device, so that the molding purpose is achieved.

Injection molding: through addding of secondary die box 2, namely through increasing or reducing the quantity of secondary die box 2, specifically through the locating lever 12 with secondary die box 2 bottom and the mode of below locating hole 13 assorted pegging graft fixed, square locating lever 12 and locating hole 13 can also avoid appearing rotatory unfixed condition, reach the change of realizing the die cavity 15 that bottom die box 1, secondary die box 2 constitute, further realization is to the quick change of injection moulding's plastic pipe's size, do benefit to the size quick change in the plastic pipe injection moulding, reduce the large amount of inputs of different size moulds, reach the reduce cost purpose.

And (3) demolding: the motor 5 is started, the motor 5 drives the screw rod 7 to rotate, at the moment, the connecting rod 6 moves downwards under the combined action of the screw rod 7 and the guide rod 9, the connecting rod 6 drives the guide rod 9 to move downwards at first, the guide rod 9 drives the bottom die cover 10 to separate from the bottom die box 1, the matching plate 11 on the bottom die cover 10 is separated from the bottom die box 1, so that a plastic pipeline in the die cavity 15 is exposed through the opening, meanwhile, the connecting rod 6 moves downwards and drives the pushing rod 16 to move downwards, the pushing rod 16 enters the die cavity 15 through the inserting hole 17, the molded plastic pipeline in the die cavity 15 is gradually discharged through the exposing opening under the action of the pushing rod 16, namely, the die cover 10 is opened, the demolding of the plastic pipeline is realized, the whole process shortens the two steps of separating from the die and then returning the material when the traditional demolding, and the aim of improving the injection molding efficiency is fulfilled.

To sum up: the plastic mold can change the corresponding injection cavity according to the size of the injection molded plastic pipeline, has high suitability, can realize quick demolding, and improves injection molding efficiency.

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 embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A make things convenient for modular plastic mold of drawing of patterns, its characterized in that: the die comprises a bottom die box (1), a secondary die box (2) and an upper die cover (3) which are sequentially spliced, wherein the upper end of the bottom die box (1) is connected with the bottom end of the secondary die box (2), and the top end of the secondary die box (2) positioned at the upper part is connected with the bottom of the upper die cover (3); a circular mold cavity (15) is formed among the bottom mold box (1), the secondary mold box (2), the upper mold cover (3) and the bottom mold cover (10) together; the outer side of the upper die cover (3) is provided with a mounting ring (4), the lower end of the bottom die box (1) is provided with a bottom die cover (10), and mounting lugs are symmetrically arranged at two ends of the mounting ring (4) and the bottom die cover (10); liquid injection holes are symmetrically formed in two sides of the upper surface of the upper die cover (3), and a liquid injection pipe (14) is arranged on the upper surface of the upper die cover (3) through the liquid injection holes; the middle part of the upper surface of the upper die cover (3) is provided with a motor (5), the output end of the motor (5) is provided with a screw rod (7), a connecting rod (6) is sleeved outside the screw rod (7), the connecting rod (6) is horizontal, the lower surfaces of the two ends of the connecting rod are provided with guide rods (9), the guide rods (9) are connected with mounting lugs on the mounting ring (4) in an inserting mode, and the lower ends of the guide rods (9) are connected with mounting lugs on the bottom die cover (10); the connecting rod (6) is in a shape like a Chinese character 'ji', pushing rods (16) are arranged on two sides of the lower surface of the connecting rod (6), and the lower ends of the pushing rods (16) penetrate through the upper die cover (3) and extend into the die cavity (15).

2. The combined plastic mold convenient for demolding according to claim 1, wherein square positioning rods (12) are arranged in the middle of the lower surface of each secondary mold box (2), positioning holes (13) are formed in the middle of the upper surface of each secondary mold box (2), and the positioning rods (12) are matched with the positioning holes (13).

3. The combined plastic die convenient to demold according to claim 1, wherein a limiting plate (8) is arranged at one end of the screw rod (7) extending to the upper part of the connecting rod (6), and the diameter of the limiting plate (8) is larger than the diameter of a threaded hole of the screw rod (7) penetrating through the connecting rod (6).

4. The combined plastic mold convenient for demolding according to claim 1, wherein a matching plate (11) is arranged in the middle of the upper surface of the bottom mold cover (10), and the matching plate (11) is matched with the lower part of the bottom mold box (1).

5. The combined plastic mould convenient to demould according to claim 1, wherein the inner side of the upper mould cover (3) close to the liquid injection pipe (14) is provided with a jack (17), and the pushing rod (16) is matched with the jack (17).

6. The combined plastic mould convenient for demoulding according to claim 1, wherein the length of the pushing rod (16) is the same as the height formed by the bottom mould box (1), the secondary mould box (2) and the upper mould cover (3).

7. A modular plastic mould according to claim 1, characterized in that the lower end of the ejector pin (16) does not extend into the mould cavity (15) when the upper end of the connecting rod (6) is in contact with the limiting plate (8).