Stripping device for injection molding of plastic products

The synchronous ejection mechanism solves the problem of uneven force on plastic products during demolding, achieving uniform force distribution, avoiding deformation and mold jamming, and improving demolding efficiency.

CN223735378UActive Publication Date: 2025-12-30QINGDAO ZEFENG ELECTRONICS CO LTD
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Patent Information

Application Number
CN202520127048.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-12-30
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

In the prior art, when plastic products are stripped, the lifting plate is located in the middle of the bottom wall of the mold cavity, which can cause uneven force on the four corners of the plastic products, resulting in deformation or mold jamming.

Method used

The synchronous ejection mechanism, which includes a combination of electric push rods, sliding columns, limit blocks, connecting rods and guide blocks, enables the synchronous movement of the first and second ejector rods, evenly lifting the four corners and the middle of the plastic product to ensure uniform force distribution.

Benefits of technology

This ensures uniform force on plastic products during unloading, preventing deformation or jamming and guaranteeing synchronous unloading.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plastic product processing, and discloses a stripping device for plastic product injection molding, which comprises a mold, a mold cavity is arranged on the top surface of the mold, a first ejection component and a second ejection component are arranged below the mold, a connecting component is arranged below the mold, and the first ejection component is connected with the second ejection component. Through mutual cooperative use of an electric push rod, a sliding column, a first limiting block, a limiting groove, a synchronous rod and a sliding block, a first ejector rod can be synchronously pushed through a first connecting rod, and a second ejector rod can be synchronously pushed through a second connecting rod to move upwards; the multiple first ejector rods and the multiple second ejector rods synchronously move upwards and push the plastic product in the mold cavity to move upwards, so that the plastic product is separated from the mold cavity, and the plastic product is stripped, and compared with the prior art, the synchronous stripping mode can enable the plastic product to be evenly stressed when the plastic product is stripped, and the stripping efficiency is improved. And deformation or mold clamping of the plastic product is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic product processing, more particularly to a plastic product injection molding is with material removing device. BACKGROUND

[0002] Plastic products are the life, industrial and other goods collectively processed by using plastic as the main raw material. Including all processes of products such as injection molding, blistering and other processes using plastic as raw material, plastic is a kind of synthetic polymer material with plasticity. In the process of plastic product production, the plastic needs to be melted, then the melted plastic is injected into the mold through the injection molding machine for molding, and then the molded plastic product is removed from the mold after cooling.

[0003] After searching, a kind of plastic product injection molding is with material removing device of CN217169599U, the patent discloses starting fan, air is inhaled into connecting pipeline, the air in connecting pipeline is cooled under the action of refrigerator, and is delivered to cooling cavity inside by delivery pipeline, and the heat transfer area of heat conduction sheet is increased than cold air, to accelerate the cooling of plastic product, to improve the material removing efficiency, then starting electric push rod drives connecting rod and jacking plate to move up, jacking plate ejects plastic product and completes material removing;

[0004] But the above scheme still has the following shortcomings: when material removing, since jacking plate is located in the middle position of bottom wall in mold cavity, when plastic product is lifted, the four corner positions of plastic product are prone to uneven stress, leading to deformation of plastic product. Utility model content

[0005] In order to overcome the above-mentioned defects of prior art, the utility model provides a kind of plastic product injection molding is with material removing device, to solve the problems existing in above background art.

[0006] The utility model provides the following technical scheme:

[0007] The utility model relates to a plastic product injection molding stripping device, including: the top surface of mould is equipped with mould cavity, the lower side of mould is equipped with first ejection part and second ejection part, the lower side of mould is equipped with connecting part, first ejection part and second ejection part are connected through connecting part, the bottom surface of mould is equipped with fixed frame, the inner side wall of fixed frame is equipped with drive part, and drive part drives first ejection part and second ejection part synchronous movement, first ejection part includes: first top rod, first top rod is located in the lower side of mould, the inner bottom wall of mould cavity is equipped with first sliding hole, the inside sliding connection of first sliding hole has first top block, first top block is fixedly connected with first top rod, the inside sliding connection of fixed frame has sliding column, the top surface of sliding column is rotatably connected with first connecting rod, first connecting rod is rotatably connected with first top rod, the both sides of inside of fixed frame are equipped with limiting slot, the inside sliding connection of limiting slot has first limiting block, and first limiting block is fixedly connected with sliding column.

[0008] Further, the second ejection part includes: a plurality of second top rods, a plurality of the second top rods are located below the mold, the inner bottom wall of the mold cavity is provided with a plurality of second sliding holes, a plurality of the second sliding holes are uniformly distributed at the four corner positions of the mold cavity, the inside sliding connection of the second sliding hole has the second top block, the second top block is fixedly connected with the second top rod, the inside sliding connection of the limiting slot has the second limiting block, one side of the second limiting block is fixedly connected with the sliding block, the top surface of the sliding block is rotatably connected with the second connecting rod, and the second connecting rod is rotatably connected with the second top rod.

[0009] Further, the connecting part includes: two synchronous rods, two the synchronous rods are fixedly connected on both sides of the first limiting block, one end of the synchronous rod is fixedly connected with the second limiting block.

[0010] Further, the drive part includes: an electric push rod, the electric push rod is fixedly connected to the inner side wall of the fixed frame, and the output end of the electric push rod is fixedly connected with the sliding column.

[0011] Further, the inside of the second sliding hole is fixedly connected with a second guide block, the second guide block is slidably connected with the second top rod, and the inside of the first sliding hole is fixedly connected with a first guide block, the first guide block is slidably connected with the first top rod.

[0012] Further, the top surface of the fixed frame is fixedly connected with a plurality of fixed rods, and the fixed rods are fixedly connected with the mold.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] Through mutual cooperation of the electric push rod, the sliding column, the first limiting block, the limiting groove, the synchronous rod and the sliding block, the first connecting rod, the first top rod, the second connecting rod and the second top rod are synchronously pushed upward, the plurality of first top rods and the second top rods are synchronously moved upward, the plastic products inside the mold cavity are pushed upward, the plastic products are separated from the mold cavity, and the plastic products are stripped, compared with the prior art, the synchronous stripping mode can make the plastic products bear uniform force when the plastic products are stripped, and deformation or mold clamping of the plastic products is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a whole structure top view of the utility model;

[0017] Figure 3 It is a mold structure schematic view of the utility model;

[0018] Figure 4 It is a fixed frame structure schematic view of the utility model;

[0019] Figure 5 It is a local structure schematic view of the utility model Figure 3 A;

[0020] Figure 6 It is a local structure schematic view of the utility model Figure 3 B;

[0021] Figure 7 It is a local structure schematic view of the utility model Figure 4 C.

[0022] The figure mark is: 1, mold; 2, mold cavity; 3, second sliding hole; 4, second top block; 5, first sliding hole; 6, first top block; 7, fixed frame; 8, sliding block; 9, fixed rod; 10, second connecting rod; 11, second top rod; 12, sliding column; 13, first limiting block; 14, synchronous rod; 15, first connecting rod; 16, first top rod; 17, electric push rod; 18, second guide block; 19, first guide block; 20, second limiting block; 21, limiting groove. DETAILED DESCRIPTION

[0023] The utility model will be further explained in combination with specific embodiment, however, people skilled in the art should understand that the detailed explanation given in combination with the drawings is for better explanation, the structure of the utility model must exceed these limited embodiments, and for some equivalent replacement scheme or common means, the detailed description will not be made in the text, but still belongs to the protection scope of the application.

[0024] Figures 1-7 is the best embodiment of the utility model, the following will be combined with the attached Figure 1 ~attached Figure 7 Further illustrate the utility model.

[0025] A plastic product injection molding is provided with a stripping device, including: mold 1, the top surface of mold 1 is provided with mold cavity 2, the lower portion of mold 1 is provided with first ejection component and second ejection component, the lower portion of mold 1 is provided with connecting component, first ejection component and second ejection component are connected by connecting component, the bottom surface of mold 1 is provided with fixed frame 7, the inner side wall of fixed frame 7 is provided with driving component, driving component drives first ejection component and second ejection component synchronous movement, first ejection component includes: first ejector rod 16, first ejector rod 16 is arranged in the lower portion of mold 1, the inner bottom wall of mold cavity 2 is provided with first sliding hole 5, first sliding hole 5 is slidably connected with first ejector block 6 in the inside, first ejector block 6 is fixedly connected with first ejector rod 16, sliding column 12 is slidably connected in the inside of fixed frame 7, first connecting rod 15 is rotatably connected to the top surface of sliding column 12, first connecting rod 15 is rotatably connected with first ejector rod 16, limit slot 21 is formed in the inside of both sides of fixed frame 7, limit slot 21 is T-shaped slot, first limit block 13 is slidably connected in the inside of limit slot 21, first limit block 13 is T-shaped block, first limit block 13 is fixedly connected with sliding column 12.

[0026] Specifically, the second ejection component includes: a plurality of second ejector rods 11, a plurality of second ejector rods 11 are arranged in the lower portion of mold 1, a plurality of second sliding holes 3 are formed in the inner bottom wall of mold cavity 2, a plurality of second sliding holes 3 are evenly distributed at the four corner positions of mold cavity 2, second ejector block 4 is slidably connected in the inside of second sliding hole 3, second ejector block 4 is fixedly connected with second ejector rod 11, second limit block 20 is slidably connected in the inside of limit slot 21, second limit block 20 is T-shaped block, sliding block 8 is fixedly connected to one side of second limit block 20, second connecting rod 10 is rotatably connected to the top surface of sliding block 8, second connecting rod 10 is rotatably connected with second ejector rod 11.

[0027] In the embodiment, when the sliding block 8 and the sliding column 12 move synchronously, the sliding block 8 pushes the second ejector rod 11 upward through the second connecting rod 10, and the sliding column 12 pushes the first ejector rod 16 upward through the first connecting rod 15, so that the plurality of first ejector rods 16 and the second ejector rods 11 move upward synchronously and push the plastic product inside the mold cavity 2 upward, so that the plastic product is separated from the mold cavity 2 and the plastic product is stripped.

[0028] Specifically, the connecting component includes: two synchronous rods 14, the two synchronous rods 14 are fixedly connected to the two sides of the first limit block 13, one end of the synchronous rod 14 is fixedly connected with the second limit block 20.

[0029] In the embodiment, when the sliding column 12 moves, the first limiting block 13 moves in the limiting groove 21, and the first limiting block 13 synchronously drives the two second limiting blocks 20 to move through the synchronous rod 14, so as to ensure that the second top rod 11 and the first top rod 16 move synchronously.

[0030] Specifically, the driving component includes an electric push rod 17 fixedly connected to the inner side wall of the fixed frame 7, and the output end of the electric push rod 17 is fixedly connected with the sliding column 12.

[0031] In the embodiment, the output end of the electric push rod 17 is retracted to drive the sliding column 12 to move, and the sliding column 12 drives the first limiting block 13 to slide in the limiting groove 21, and the first limiting block 13 drives the two sliding blocks 8 to synchronously move through the synchronous rod 14, so as to drive the sliding block 8 to push the second top rod 11 to move upward through the second connecting rod 10, and the plurality of first top rods 16 and the second top rod 11 synchronously move upward and push the plastic products in the mold cavity 2 to move upward, so as to demold the plastic products.

[0032] Specifically, the second sliding hole 3 is fixedly connected with a second guide block 18 inside, and the second guide block 18 is slidably connected with the second top rod 11. The first sliding hole 5 is fixedly connected with a first guide block 19 inside, and the first guide block 19 is slidably connected with the first top rod 16.

[0033] In the embodiment, the second guide block 18 and the first guide block 19 can guide the movement of the second top rod 11 and the first top rod 16 respectively, so as to prevent the second top rod 11 and the first top rod 16 from deviating during movement.

[0034] Specifically, the top surface of the fixed frame 7 is fixedly connected with a plurality of fixed rods 9, and the fixed rods 9 are fixedly connected with the mold 1.

[0035] In the embodiment, the fixed rods 9 can connect the mold 1 and the fixed frame 7, and have a reinforcing effect.

[0036] The working principle and use process of the utility model: when using, the output end of electric push rod 17 retracts and drives sliding column 12 to move, so that sliding column 12 pushes first top rod 16 to move upwards through first connecting rod 15, at the same time, when sliding column 12 moves, sliding column 12 will drive first limiting block 13 to slide in the inside of limiting groove 21, at this time, first limiting block 13 will drive two sliding blocks 8 to move synchronously through synchronous rod 14, and then make sliding block 8 push second top rod 11 to move upwards through second connecting rod 10, because second guide block 18 guides second top rod 11, and first guide block 19 guides first top rod 16, at this time, multiple first top rods 16 and second top rods 11 move upwards synchronously and push the plastic products in the inside of mold cavity 2 to move upwards, so that the plastic products are separated from mold cavity 2, and the plastic products are stripped, when stripping, multiple evenly distributed first top rods 16 lift the plastic products from the four corner positions, and second top rod 11 lifts the plastic products through the middle, so that the plastic products are evenly stressed when stripping, deformation of the plastic products is avoided, and the synchronous stripping mode can ensure that the plastic products are simultaneously separated from mold 1 when stripping, so that the mold clamping phenomenon caused by partial stripping is avoided, compared with the prior art, the synchronous stripping mode of the utility model can make the plastic products be evenly stressed when stripping, so that deformation or mold clamping of the plastic products is avoided.

[0037] The above is only the preferred embodiment of the utility model, and does not limit other forms of the utility model, and any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model still belong to the protection scope of the technical scheme of the utility model.

Claims

1. A stripper device for injection molding of plastic articles, comprising: The utility model provides a mould (1), the top surface of mould (1) is equipped with mould cavity (2), it is characterized by, the below of mould (1) is equipped with first ejection component and second ejection component, the below of mould (1) is equipped with connecting component, first ejection component and second ejection component are connected through connecting component, the bottom surface of mould (1) is equipped with fixed frame (7), the inner side wall of fixed frame (7) is equipped with drive component, drive component drives first ejection component and second ejection component synchronous movement, first ejection component includes: first top rod (16), first top rod (16) is equipped in the below of mould (1), the inner bottom wall of mould cavity (2) is equipped with first sliding hole (5), first sliding hole (5) is slidably connected with first top block (6) inside, first top block (6) is fixedly connected with first top rod (16), the inside of fixed frame (7) is slidably connected with sliding column (12), the top surface of sliding column (12) is rotatably connected with first connecting rod (15), first connecting rod (15) is rotatably connected with first top rod (16), the inside both sides of fixed frame (7) are equipped with limit groove (21), first limit block (13) is slidably connected in limit groove (21), first limit block (13) is fixedly connected with sliding column (12).

2. The stripper device for injection molding of plastic products according to claim 1, characterized in that, Second ejection component includes: a plurality of second top rod (11), a plurality of second top rod (11) are all equipped in the below of mould (1), the inner bottom wall of mould cavity (2) is equipped with a plurality of second sliding hole (3), a plurality of second sliding hole (3) are evenly distributed in the position of four corners of mould cavity (2), the inside of second sliding hole (3) is slidably connected with second top block (4), second top block (4) is fixedly connected with second top rod (11), the inside of limit groove (21) is slidably connected with second limit block (20), one side of second limit block (20) is fixedly connected with sliding block (8), the top surface of sliding block (8) is rotatably connected with second connecting rod (10), second connecting rod (10) is rotatably connected with second top rod (11).

3. The stripper device for injection molding of plastic articles according to claim 2, characterized in that, Connecting component includes: two synchronous rods (14), two synchronous rods (14) are fixedly connected on the both sides of first limit block (13) respectively, one end of synchronous rod (14) is fixedly connected with second limit block (20).

4. The stripper device for injection molding of plastic products according to claim 1, characterized in that, Drive component includes: electric push rod (17), electric push rod (17) is fixedly connected on the inner side wall of fixed frame (7), the output end of electric push rod (17) is fixedly connected with sliding column (12).

5. The stripper device for injection molding of plastic articles according to claim 2, characterized in that, The inside of second sliding hole (3) is fixedly connected with second guide block (18), second guide block (18) is slidably connected with second top rod (11), the inside of first sliding hole (5) is fixedly connected with first guide block (19), first guide block (19) is slidably connected with first top rod (16).

6. The stripper device for injection molding of plastic articles according to claim 1, characterized in that, The top surface of the fixed frame (7) is fixedly connected with a plurality of fixed rods (9), and the fixed rods (9) are fixedly connected with the mold (1).

Citation Information

Patent Citations

  • Stripping device for injection molding of plastic products

    CN217169599U