CN215619618U

CN215619618U - Steel injection mold with delayed ejection function

Info

Publication number: CN215619618U
Application number: CN202121147303.8U
Authority: CN
Inventors: 杜旭伟; 洪鹏; 张志远; 刘功辉
Original assignee: Shenzhen Xingkai Technology Co ltd
Current assignee: Shenzhen Xingkai Technology Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-25
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses a steel injection mold with a delay ejection function, which comprises a fixed mold and a pressing mold, wherein the bottom end inside the fixed mold is fixedly connected with a first electric push rod, the top end inside the fixed mold is fixedly connected with a lifting cavity, the top end of the first electric push rod is fixedly connected with a slide block, the slide block is in sliding connection with the inner wall of the lifting cavity, one side of the top end of the slide block is fixedly connected with an ejection shaft, the top end of the ejection shaft is fixedly connected with an ejection block, one side of the top end of the slide block is fixedly connected with a guide pillar, the top end of the lifting cavity is fixedly connected with a delay ejection module, one side inside the delay ejection module is fixedly connected with a moving cavity, the top end of the guide pillar is rotatably connected with a rotary rod, two sides of the rotary rod are fixedly connected with rotary shafts, the rotary shaft of the rotary rod is fixedly connected with a delay ejection shaft, and the top end of the delay ejection shaft is fixedly connected with a delay ejection block. According to the utility model, the delayed ejection module is arranged, so that the ejection block is ejected out firstly, and then the ejection block is ejected out in a delayed manner, so that a plastic part is easy to demould, and the processing quality of the device is improved.

Description

Steel injection mold with delayed ejection function

Technical Field

The utility model relates to a steel injection mold with a delayed ejection function, in particular to a steel injection mold with a delayed ejection function.

Background

The injection mold, also known as injection molding mold, has the advantages of high production efficiency, high production speed, automatic operation, accurate product size and great application in the field of product forming and processing with complicated shape.

Common injection molds on the market are all ejected once, and when complex plastic parts are processed, the edges of the plastic parts are not acted by ejection blocks, so that the plastic parts are easy to deform and difficult to demould.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides a steel injection mold with a delayed ejection function.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a steel injection mold with a time delay ejection function comprises a fixed mold and a pressing mold, wherein the bottom end inside the fixed mold is fixedly connected with a first electric push rod, the top end inside the fixed mold is fixedly connected with a lifting cavity, the bottom end of the lifting cavity is provided with a lifting hole, the top end of the first electric push rod is fixedly connected with a slide block, the slide block is slidably connected with the inner wall of the lifting cavity, one side of the top end of the slide block is fixedly connected with an ejection shaft, the top end of the ejection shaft is fixedly connected with an ejection block, one side of the top end of the slide block is fixedly connected with a guide pillar, the top end of the lifting cavity is fixedly connected with a time delay ejection module, ejection holes are formed in the top end and the bottom end of the time delay ejection module, one side inside the time delay ejection module is fixedly connected with a motion cavity, the top end of the motion cavity is provided with a time delay ejection hole, the top end of the guide pillar is rotatably connected with a rotary rod, two sides of the rotary rod are fixedly connected with a rotary shaft, and the time delay ejection shaft is fixedly connected with the rotary rod, the top end of the delay ejection shaft is fixedly connected with a delay ejection block.

Furthermore, the bottom end of the fixed die is fixedly connected with a fixed die base, a plurality of second electric push rods are fixedly connected to two sides of the top end of the fixed die base, and dustproof cloth is fixedly connected to the top ends of the second electric push rods.

Furthermore, a molding cavity is formed at the top end of the fixed mold.

Further, moulding-die top fixedly connected with moulding-die base, a plurality of stand hole has been seted up on moulding-die base top, and the stand hole department sliding connection of moulding-die base has the stand, stand bottom and fixed mould fixed connection, and stand outer wall sliding connection has the bullet yellow, and moulding-die both sides fixedly connected with a plurality of sleeve.

Furthermore, the first electric push rod and the second electric push rod are connected with an external power supply.

Further, fixed mould base top both sides fixedly connected with feed pipe, fixed mould and feed pipe fixed connection, the feed inlet has been seted up to feed pipe one side.

The utility model has the beneficial effects that:

1. after the plastic part is molded, the first electric push rod pushes the sliding block to slide in the lifting cavity, the sliding block drives the ejection block at the top end of the ejection shaft to eject out, the guide pillar at the other side of the sliding block moves upwards, the rotating shaft rotates, when the guide pillar rises to a certain position, the rotating rod is pulled to move upwards, the delay ejection shaft connected to one side of the rotating rod ejects upwards, the delay ejection block ejects out, the purpose that the ejection block ejects out first and then ejects out after a period of time is achieved, the complex plastic part is easy to demold, deformation is avoided, and the processing quality of the device is improved.

2. When the pressing die is about to move downwards, the second electric push rod works to drive the dustproof cloth connected with the top end of the second electric push rod to rise upwards, the purpose of protecting the die from being interfered by dust in the injection molding process is achieved, and the quality of finished products of the device is improved.

3. When the molten material is required to be injected into the mold, the feeding pipes on the two sides of the fixed mold simultaneously feed, so that the purpose of bidirectional feeding is achieved, the cooling speed of the two sides of the plastic part product is the same, cracks are not easy to generate, and the working efficiency of the device is improved.

Drawings

Fig. 1 is a schematic structural diagram of a steel injection mold with a delayed ejection function in embodiment 1;

FIG. 2 is a cross-sectional view of a fixed mold of a steel injection mold with a delayed ejection function as set forth in example 1;

fig. 3 is a schematic structural view of a dust cloth of a steel injection mold with a delayed ejection function in embodiment 1;

fig. 4 is a cross-sectional view of an injection module of the steel column injection mold with delayed ejection function in example 2.

In the figure: 1-fixed die, 2-pressing die, 3-fixed die base, 4-pressing die base, 5-forming cavity, 6-upright post, 7-upright post hole, 8-sleeve, 9-spring, 10-dust-proof bag, 11-first driving push rod, 12-lifting cavity, 13-lifting hole, 14-slide block, 15-guide post, 16-delay ejection module, 17-motion cavity, 18-ejection shaft, 19-ejection hole, 20-rotating rod, 21-rotating shaft, 22-delay ejection shaft, 23-ejection block, 24-delay ejection block, 25-delay ejection hole, 26-second electric push rod, 27-feeding pipe and 28-feeding port.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1-3, a steel injection mold with a delayed ejection function comprises a fixed mold 1, a first electric push rod 11 welded at the bottom end inside the fixed mold 1, a lifting cavity 12 welded at the top end inside the fixed mold 1, a lifting hole 13 formed at the bottom end of the lifting cavity 12, a slider 14 welded at the top end of the first electric push rod 11, the slider 14 slidably connected with the inner wall of the lifting cavity 12, an ejection shaft 18 welded at one side of the top end of the slider 14, an ejection block 23 welded at the top end of the ejection shaft 18, a guide pillar 15 welded at one side of the top end of the slider 14, a delayed ejection module 16 welded at the top end of the lifting cavity 12, ejection holes 19 formed at the top end and the bottom end of the delayed ejection module 16, a motion cavity 17 welded at one side inside the delayed ejection module 16, a delayed ejection hole 25 formed at the top end of the motion cavity 17, a rotary rod 20 rotatably connected at the top end of the guide pillar 15, rotary rods 21 welded at the two sides of the rotary rod 20, a delayed ejection shaft 22 welded on the rotary rod 21, the top end of the delay ejection shaft 22 is welded with a delay ejection block 24, after a plastic part is molded, the first electric push rod 11 pushes the sliding block 14 to slide in the lifting cavity 13, the sliding block 14 drives the ejection block 23 at the top end of the ejection shaft 18 to eject, the guide pillar 15 at the other side of the sliding block 14 moves upwards, the rotating shaft 21 rotates, when the guide pillar 15 rises to a certain position, the rotating rod 20 is pulled to move upwards, the delay ejection shaft 22 connected with one side of the rotating rod 20 ejects upwards, the delay ejection block 24 ejects, the purpose that the ejection block 23 ejects firstly, and after a period of time, the delay ejection block 24 ejects again is achieved, so that the complex plastic part is easy to demold, deformation does not occur, and the processing quality of the device is improved.

Wherein, the bottom end of the fixed mould 1 is welded with the fixed mould base 3, two sides of the top end of the fixed mould base 3 are welded with a plurality of second electric push rods 26, the top end of the second electric push rods 26 is welded with dustproof cloth 10, the top end of the fixed mould 1 is provided with a molding cavity 5, the top end of the pressing mould 2 is welded with the pressing mould base 4, the top end of the pressing mould base 4 is provided with a plurality of upright post holes 7, the upright post holes 7 of the pressing mould base 4 are connected with upright posts 6 in a sliding way, the bottom end of the upright post 6 is welded with the fixed mould 1, the outer wall of the upright post 6 is connected with the elastic yellow 9 in a sliding way, two sides of the pressing mould 2 are welded with a plurality of sleeves 8, the first electric push rod 11 and the second electric push rod 26 are both connected with an external power supply, when the pressing mould 2 is about to move downwards, the second electric push rods 26 work to drive the dustproof cloth 10 connected with the top end of the second electric push rod 26 to lift upwards, thereby achieving the purpose of protecting the mould from being interfered by dust in the injection moulding process, the finished product quality of the device is improved.

The working principle is as follows: after the plastic part is molded, the first electric push rod 11 pushes the sliding block 14 to slide in the lifting cavity 13, the sliding block 14 drives the ejection block 23 at the top end of the ejection shaft 18 to eject, the guide pillar 15 at the other side of the sliding block 14 moves upwards, the rotating shaft 21 rotates, when the guide pillar 15 rises to a certain position, the rotating rod 20 is pulled to move upwards, the delay ejection shaft 22 connected with one side of the rotating rod 20 ejects upwards, the delay ejection block 24 ejects, the purpose that the ejection block 23 ejects firstly, and after a period of time, the delay ejection block 24 ejects again is achieved, so that the complex plastic part is easy to demold, deformation does not occur, and the processing quality of the device is improved.

When the pressing die 2 is about to move downwards, the second electric push rod 26 works to drive the dustproof cloth 10 connected with the top end of the second electric push rod 26 to lift upwards, so that the purpose of protecting the die from being interfered by dust in the injection molding process is achieved, and the quality of finished products of the device is improved.

Example 2

Referring to fig. 4, in the present embodiment, compared with embodiment 1, in order to improve the quality of the finished injection mold, feed pipes 27 are welded on two sides of the top end of the fixed mold base 3, the fixed mold 1 is welded to the feed pipes 27, and a feed port 28 is formed in one side of the feed pipes 27.

When the molten material is required to be injected into the mold, the feeding pipes 27 on the two sides of the fixed mold 1 simultaneously feed the molten material, so that the purpose of bidirectional feeding is achieved, the cooling speed of the two sides of the plastic product is the same, cracks are not easy to generate, and the working efficiency of the device is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A steel injection mold with a time delay ejection function comprises a fixed mold (1) and a pressing mold (2), and is characterized in that the bottom end inside the fixed mold (1) is fixedly connected with a first electric push rod (11), the top end inside the fixed mold (1) is fixedly connected with a lifting cavity (12), the bottom end of the lifting cavity (12) is provided with a lifting hole (13), the top end of the first electric push rod (11) is fixedly connected with a sliding block (14), the sliding block (14) is slidably connected with the inner wall of the lifting cavity (12), one side of the top end of the sliding block (14) is fixedly connected with an ejection shaft (18), the top end of the ejection shaft (18) is fixedly connected with an ejection block (23), one side of the top end of the sliding block (14) is fixedly connected with a guide pillar (15), the top end of the lifting cavity (12) is fixedly connected with a time delay ejection module (16), and ejection holes (19) are formed in the top end and the bottom end of the time delay ejection module (16), the delay ejection module comprises a delay ejection module (16), a motion cavity (17) is fixedly connected to one side of the interior of the delay ejection module (16), a delay ejection hole (25) is formed in the top end of the motion cavity (17), a rotary rod (20) is rotatably connected to the top end of a guide pillar (15), rotary shafts (21) are fixedly connected to two sides of the rotary rod (20), a delay ejection shaft (22) is fixedly connected to the rotary shaft (21) of the rotary rod (20), and a delay ejection block (24) is fixedly connected to the top end of the delay ejection shaft (22).

2. The steel injection mold with the delayed ejection function according to claim 1, wherein a fixed mold base (3) is fixedly connected to the bottom end of the fixed mold (1), a plurality of second electric push rods (26) are fixedly connected to two sides of the top end of the fixed mold base (3), and dustproof cloth (10) is fixedly connected to the top ends of the second electric push rods (26).

3. The steel injection mold with the delayed ejection function according to claim 2, wherein the top end of the fixed mold (1) is provided with a molding cavity (5).

4. The steel injection mold with the delayed ejection function according to claim 3, wherein the top end of the pressing mold (2) is fixedly connected with a pressing mold base (4), the top end of the pressing mold base (4) is provided with a plurality of upright post holes (7), the upright post holes (7) of the pressing mold base (4) are slidably connected with upright posts (6), the bottom end of each upright post (6) is fixedly connected with the fixed mold (1), the outer wall of each upright post (6) is slidably connected with a tabasheer (9), and two sides of the pressing mold (2) are fixedly connected with a plurality of sleeves (8).

5. The steel injection mold with the delayed ejection function according to claim 4, wherein the first electric push rod (11) and the second electric push rod (26) are both connected with an external power supply.

6. The steel injection mold with the delayed ejection function according to claim 5, wherein the feeding pipes (27) are fixedly connected to two sides of the top end of the fixed mold base (3), the fixed mold (1) is fixedly connected with the feeding pipes (27), and the feeding ports (28) are formed in one side of the feeding pipes (27).