Plastic part injection mold

By introducing a vibration motor and telescopic rod structure into the injection mold, the problem of plastic parts being difficult to automatically detach from the mold was solved, realizing automated demolding, improving production efficiency and avoiding product damage.

CN224275993UActive Publication Date: 2026-05-26SUZHOU XINGSHAN PRECISION PLASTIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU XINGSHAN PRECISION PLASTIC CO LTD
Filing Date
2025-06-26
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

After injection molding, the tight fit between the plastic part and the mold or the adsorption effect caused by cooling shrinkage makes it difficult for the plastic part to be automatically removed. This requires manual intervention or additional demolding devices, which increases production costs and reduces production efficiency.

Method used

A plastic injection mold was designed, which includes a vibration motor and a telescopic rod structure. After injection molding is completed, the vibration motor is activated to generate vibration to help the plastic part fall smoothly off the mold, reducing manual intervention and improving the degree of automation.

Benefits of technology

It enables automated demolding of plastic parts, avoids product damage, improves production efficiency and automation, and reduces the need for manual intervention.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of injection molding, in particular to a plastic part injection mold which comprises an injection molding fixed plate and an injection molding movable plate, a transmission plate is arranged on one side of the injection molding fixed plate, a movable plate is arranged at the other end of the injection molding fixed plate, and a transmission part is arranged outside the transmission plate. A supporting plate is arranged at the bottom of the injection molding fixed plate, the injection molding fixed plate and the injection molding movable plate are connected through a telescopic rod, dismounting parts are arranged on the two sides of the movable plate, a vibration rod is arranged on one side of each dismounting part, and an injection molding part is arranged between the movable plate and the injection molding movable plate. According to the utility model, the vibration motor is specially arranged and can be started after injection molding is finished, and the plastic part is helped to smoothly fall off from the mold by generating moderate vibration, so that the requirement of manual demolding is reduced, the automation degree of a production line is improved, and meanwhile, the product damage possibly caused by forced demolding is also avoided.
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Description

Technical Field

[0001] This utility model relates to the field of injection molding, specifically to an injection mold for plastic parts. Background Technology

[0002] In the manufacturing process of plastic parts, injection molds are key equipment for achieving efficient and precise molding.

[0003] A Chinese patent for a plastic injection mold (application number: CN202322009450.4) addresses the problem of existing injection molds' difficulty in flexibly changing the mold core on the template and performing different plastic injection molding operations on the same mold. The proposed solution includes a base plate, a fixed mold, a male mold core, a movable mold, a top plate, and a connecting assembly. The fixed mold is fixedly mounted on the top of the base plate and has an installation groove. The male mold core is disposed within the installation groove. The connecting assembly is disposed on the fixed mold and connected to the male mold core. The top plate is located on the top of the base plate. The movable mold is fixedly mounted on the bottom of the top plate, and several guide pillars are fixedly installed at the bottom of the movable mold. This invention allows for flexible replacement of the mold core on the template, enabling different plastic injection molding operations on the same mold.

[0004] After injection molding, the plastic parts are often difficult to detach automatically due to the tight fit between the plastic parts and the mold or the adsorption effect caused by cooling and shrinkage. Manual intervention or additional demolding devices are required to complete the demolding process, which not only increases production costs but also reduces production efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a plastic injection mold.

[0006] The technical solution of this utility model is as follows:

[0007] This utility model provides a plastic injection mold, including an injection fixed plate and an injection movable plate. A transmission plate is provided on one side of the injection fixed plate, and a movable plate is provided at the other end of the injection fixed plate. A transmission component is provided on the outside of the transmission plate, and a support plate is provided at the bottom of the injection fixed plate. The injection fixed plate and the injection movable plate are connected by a telescopic rod. Disassembly components are provided on both sides of the movable plate, and a vibration rod is provided on one side of the disassembly component. An injection molded part is provided between the movable plate and the injection movable plate.

[0008] Optionally, the transmission component is fixedly connected to one side of the transmission plate, one side of the transmission component is connected to a feed inlet, and a control switch is provided on the top of the transmission component.

[0009] Optionally, the support plate is fixedly connected to the bottom of the injection molding fixing plate, and a contact plate is fixedly connected to the bottom of the support plate.

[0010] Optionally, the injection molding movable plate is provided with an outer plate, and an injection cavity is provided on the other side of the injection molding movable plate.

[0011] Optionally, the injection-molded fixed plate is provided with an expansion joint inside, and the movable plate is provided with expansion holes evenly distributed on the outside. The output end of the expansion joint is provided with an expansion rod that evenly passes through the expansion hole, and the other end of the expansion rod is fixedly connected to the injection-molded movable plate.

[0012] Optionally, the top of the movable plate is provided with a control lug, and one side of the movable plate is provided with an injection cavity. The injection molded part is injection molded between the first injection cavity and the second injection cavity, and the first injection cavity and the second injection cavity correspond to each other.

[0013] Optionally, a flow hole is provided on one side of the movable plate, extending into the injection cavity, and an injection tube is provided on the transmission component, extending from the transmission plate to the movable plate, with the other end of the injection tube communicating with the flow hole.

[0014] Optionally, the disassembly component is fixedly connected to the outside of the movable plate, and a vibration motor is fixedly connected to the outside of the disassembly component. The output end of the vibration motor is connected to the vibration rod.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] This invention features a specially designed vibration motor that can be activated after injection molding. By generating appropriate vibrations, it helps the plastic parts fall smoothly off the mold, reducing the need for manual demolding, improving the automation level of the production line, and avoiding product damage that may be caused by forced demolding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0019] Figure 3 This is a schematic diagram of the connection structure of the injection-molded fixing plate;

[0020] Figure 4 yes Figure 3 A partial structural diagram.

[0021] In the diagram, 1. Injection molding fixed plate; 101. Transmission plate; 102. Movable plate; 1021. Control lifting lug; 103. Flow hole; 104. Injection cavity one; 105. Telescopic hole; 2. Transmission component; 201. Feed port; 202. Control switch; 203. Injection tube; 3. Support plate; 301. Contact plate; 4. Injection molding movable plate; 401. Outer plate; 402. Injection cavity two; 5. Disassembly component; 501. Vibration motor; 502. Vibration rod; 6. Telescopic rod; 7. Injection molded part. Detailed Implementation

[0022] To facilitate understanding of this utility model by those skilled in the art, the specific embodiments of this utility model are described below with reference to the accompanying drawings. Example 1

[0023] like Figure 1-4 As shown, this utility model provides a plastic injection mold, including an injection fixed plate 1 and an injection movable plate 4. A transmission plate 101 is provided on one side of the injection fixed plate 1, and a movable plate 102 is provided at the other end of the injection fixed plate 1. A transmission component 2 is provided on the outside of the transmission plate 101. A support plate 3 is provided at the bottom of the injection fixed plate 1. The injection fixed plate 1 and the injection movable plate 4 are connected by a telescopic rod 6. A disassembly component 5 is provided on both sides of the movable plate 102. A vibration rod 502 is provided on one side of the disassembly component 5. An injection molded part 7 is provided between the movable plate 102 and the injection movable plate 4.

[0024] This utility model is specially equipped with a vibration motor 501, which can be started after injection molding. By generating appropriate vibration, it helps the plastic part to fall smoothly off the mold, reducing the need for manual demolding, improving the automation level of the production line, and avoiding product damage that may be caused by forced demolding. Example 2

[0025] like Figure 1-2 As shown, the transmission component 2 is fixedly connected to one side of the transmission plate 101, and a feed inlet 201 is connected to one side of the transmission component 2. A control switch 202 is provided on the top of the transmission component 2.

[0026] It should be noted that the raw material for injection molding enters through the feed inlet 201. After entering, it can be heated through the transmission component 2 and the injection molding fixing plate 1. The fluid entering inside the feed inlet 201 can be connected through a heat-insulated pipe to achieve wireless connection of the adjustment and control pipe, which facilitates the stable connection of the subsequent control pipe.

[0027] In this embodiment, the support plate 3 is fixedly connected to the bottom of the injection molding fixing plate 1, and the bottom of the support plate 3 is fixedly connected to the contact plate 301.

[0028] During use, the contact plate 301 is used to connect external equipment to ensure that the injection molding fixing plate 1 can operate stably.

[0029] In this embodiment, an outer plate 401 is provided on the outside of the injection molding movable plate 4, and an injection cavity 402 is provided on the other side of the injection molding movable plate 4. Example 3

[0030] like Figure 3-4 As shown, the injection-molded fixed plate 1 is equipped with an expansion joint inside, and the movable plate 102 is provided with expansion holes 105 evenly distributed on the outside. The output end of the expansion joint is provided with an expansion rod 6 that evenly passes through the expansion hole 105, and the other end of the expansion rod 6 is fixedly connected to the injection-molded movable plate 4.

[0031] Specifically, by adjusting the injection molding fixed plate 1, the relative extension and retraction of the telescopic rod 6 can be easily controlled, thereby adjusting the relative distance of the injection molding movable plate 4, which facilitates subsequent adjustment and control of the injection molding of the object.

[0032] In this embodiment, the top of the movable plate 102 is provided with a control lug 1021, and a first injection cavity 104 is provided on one side of the movable plate 102. The injection molded part 7 is injection molded between the first injection cavity 104 and the second injection cavity 402, and the first injection cavity 104 and the second injection cavity 402 correspond to each other.

[0033] Specifically, the control lug 1021 can assist in controlling the overall movement of the injection molding fixing plate 1, thereby assisting in disassembly and installation. When the movable plate 102 and the injection molding movable plate 4 come into contact, the first injection cavity 104 and the second injection cavity 402 form a closed space to ensure that the injection molded part 7 can be injection molded.

[0034] In this embodiment, a flow hole 103 is provided on one side of the movable plate 102, which extends into the injection cavity 104. An injection tube 203 is provided on the transmission component 2, which extends from the transmission plate 101 to the movable plate 102. The other end of the injection tube 203 is connected to the flow hole 103.

[0035] Specifically, the flow hole 103 enables smooth flow of injection molding material, and the injection tube 203 precisely controls the injection of material through the transmission plate 101, thereby ensuring control of the injection speed and facilitating subsequent adjustment of injection control.

[0036] In this embodiment, the disassembly component 5 is fixedly connected to the outside of the movable plate 102, and a vibration motor 501 is fixedly connected to the outside of the disassembly component 5. The output end of the vibration motor 501 is connected to the vibration rod 502.

[0037] Specifically, after injection molding is completed, the vibration motor 501 contacts the injection molded part 7 through the vibration rod 502, thus making it easy to control the vibration and drop of the injection molded part 7.

[0038] In summary, by connecting the injection molding fixed plate 1 and the injection molding movable plate 4, and by using the transmission component 2 to assist in the injection of molding raw materials, the vibration motor 501 can facilitate the falling of the injection molded part 7 after the injection molding is completed, after the injection molding fixed plate 1 and the injection molding movable plate 4 are separated.

[0039] The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A plastic part injection mold, characterized by: The device includes an injection molding fixed plate (1) and an injection molding movable plate (4). A transmission plate (101) is provided on one side of the injection molding fixed plate (1), and a movable plate (102) is provided at the other end of the injection molding fixed plate (1). A transmission component (2) is provided on the outside of the transmission plate (101). A support plate (3) is provided at the bottom of the injection molding fixed plate (1). The injection molding fixed plate (1) and the injection molding movable plate (4) are connected by a telescopic rod (6). A disassembly component (5) is provided on both sides of the movable plate (102). A vibration rod (502) is provided on one side of the disassembly component (5). An injection molded part (7) is provided between the movable plate (102) and the injection molding movable plate (4).

2. The injection mold for plastic parts according to claim 1, characterized in that: The transmission component (2) is fixedly connected to one side of the transmission plate (101), and a feed inlet (201) is connected to one side of the transmission component (2). A control switch (202) is provided on the top of the transmission component (2).

3. The injection mold for plastic parts according to claim 1, wherein: The support plate (3) is fixedly connected to the bottom of the injection molding fixing plate (1), and a contact plate (301) is fixedly connected to the bottom of the support plate (3).

4. The plastic part injection mold of claim 1, wherein: The injection molding movable plate (4) is provided with an outer plate (401) on the outside, and an injection cavity (402) is provided on the other side of the injection molding movable plate (4).

5. The plastic part injection mold of claim 1, wherein: The injection molding fixed plate (1) is provided with an expansion joint inside. The movable plate (102) is provided with expansion holes (105) evenly on the outside. The output end of the expansion joint passes through the expansion rod (6) of the expansion hole (105) evenly. The other end of the expansion rod (6) is fixedly connected to the injection molding movable plate (4).

6. The plastic part injection mold of claim 4, wherein: The top of the movable plate (102) is provided with a control lug (1021), and a first injection cavity (104) is opened on one side of the movable plate (102). The injection molded part (7) is injection molded between the first injection cavity (104) and the second injection cavity (402). The first injection cavity (104) and the second injection cavity (402) correspond to each other.

7. The plastic part injection mold of claim 6, wherein: The movable plate (102) has a flow hole (103) that extends into the injection cavity (104) on one side. The transmission component (2) has an injection tube (203) that extends from the transmission plate (101) to the movable plate (102). The other end of the injection tube (203) is connected to the flow hole (103).

8. The plastic part injection mold of claim 1, wherein: The disassembly component (5) is fixedly connected to the outside of the movable plate (102), and a vibration motor (501) is fixedly connected to the outside of the disassembly component (5). The output end of the vibration motor (501) is connected to the vibration rod (502).