Circular grommet mold

CN224702426UActive Publication Date: 2026-09-01ZHANGZHOU ZHAOXIN PRECISION MOLD CO LTD
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Patent Information

Application Number
CN202521790559.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-21
Publication Date
2026-09-01
Estimated Expiration
2035-08-21

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Abstract

The utility model discloses a kind of circular button-shaped parts mould, it is related to mould technical field, including upper mould, the top of upper mould is equipped with feed inlet, the bottom of upper mould is provided with lower mould, the inside of lower mould is provided with condensing assembly, the bottom of lower mould is provided with stripping assembly, the bottom of lower mould is fixedly connected with fixed plate, the condensing assembly includes condensing block, and condensing block is fixedly connected in the inside of lower mould.This circular button-shaped parts mould, when starting machine, upper mould moves down and closely adheres with lower mould, create stable airtight space for raw material injection, ensure that raw material evenly fills cavity, improve forming quality, condensate water enters from water inlet, after water inlet pipeline, outlet pipeline, circulates and flows from water outlet, quickly takes away mould heat, accelerates raw material cooling forming, effectively shortens production cycle, improves production efficiency, product size precision and surface quality can also be guaranteed, reduce defective rate.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically a mold for a circular button-shaped part. Background Technology

[0002] A round button-shaped part mold is a forming tool specifically designed for producing round button-shaped parts. It typically consists of core components such as an upper mold, lower mold, and mold core. Through precise fitting, the part is formed. The mold material is mostly high-strength alloy steel or hard alloy, possessing wear-resistant and corrosion-resistant properties to ensure long-term stability. The key to its design lies in the precise control of the mold cavity shape and dimensions, which must be customized according to the part specifications to ensure the roundness, surface finish, and dimensional accuracy of the formed part. The mold employs cold stamping or hot pressing forming processes. Cold stamping is suitable for thin-walled parts, while hot pressing is used for thick-walled or complex structural parts. Pressure causes the material to plastically deform within the mold cavity, ultimately obtaining the desired shape. During production, the mold needs regular maintenance, cleaning residues, and lubricating guide parts to prevent wear from affecting precision. This mold is widely used in the electronics, automotive, and home appliance industries for manufacturing round button-shaped parts such as buttons and connectors. It features high efficiency, precision, and mass production capabilities, making it an indispensable tool in modern manufacturing.

[0003] However, in the existing technology, some of the round button-shaped part molds are not equipped with rapid cooling devices, which makes the parts cool down for a long time, slowing down the overall production rhythm. The single ejector pin demolding method makes the demolding process inconvenient and inefficient, and occasionally it will also have a certain impact on the molding quality of the parts. Therefore, we need a round button-shaped part mold. Utility Model Content

[0004] The purpose of this invention is to provide a mold for a circular button-shaped part to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a circular button-shaped part mold, including an upper mold, a feed port at the top of the upper mold, a lower mold at the bottom of the upper mold, a condensation assembly inside the lower mold, a demolding assembly at the bottom of the lower mold, a fixing plate fixedly connected to the bottom of the lower mold, the condensation assembly including a condensation block fixedly connected inside the lower mold, a water inlet pipe on one side of the condensation block, a water outlet pipe on one side of the condensation block, a water inlet fixedly connected to one side of the lower mold, a water outlet fixedly connected to one side of the lower mold, a material injection channel at the top of the condensation block, and a mold cavity at the top of the condensation block.

[0006] Preferably, the water inlet is fixed to the water outlet by means of a lower mold, and one side of the lower mold is fixedly connected to the water inlet and the other side of the lower mold is fixedly connected to the water outlet.

[0007] Preferably, the condenser block has both an inlet pipe and an outlet pipe inside, and the inlet pipe and the outlet pipe are connected.

[0008] Preferably, the top of the condensation block is provided with both an injection channel and a mold cavity, and the injection channel and the mold cavity are connected.

[0009] Preferably, the demolding assembly includes a fixing rod, which is fixedly connected to the bottom of the lower mold. A telescopic plate is fixedly connected to the bottom of the fixing rod, a spring is fixedly connected to the top of the telescopic plate, a push rod is fixedly connected to the top of the telescopic plate, and a workpiece is disposed on the top of the push rod.

[0010] Preferably, the telescopic plate forms an elastic structure with the lower mold via a spring, and the bottom of the spring is fixedly connected to the top of the telescopic plate, and the top of the spring is fixedly connected to the bottom of the lower mold.

[0011] Preferably, the top of the telescopic plate is provided with multiple top rods, and the top rods are evenly distributed at the bottom of the workpiece.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this circular button-shaped part mold,

[0013] (1) When the machine is started, the upper mold moves down and fits tightly with the lower mold, creating a stable and sealed space for the injection of raw materials, ensuring that the raw materials fill the mold cavity evenly, improving the molding quality. The condensate enters from the water inlet, flows out from the water outlet after passing through the water inlet pipe and the water outlet pipe, and quickly carries away the heat of the mold, accelerating the cooling and molding of the raw materials, effectively shortening the production cycle, improving production efficiency, and also ensuring the product size accuracy and surface quality, reducing the defect rate.

[0014] (2) After molding, the upper mold moves upward and the spring rebounds upward through the fixed rod. The elastic potential energy of the spring is cleverly converted into kinetic energy, so that the telescopic plate drives multiple ejector rods to accurately eject the molded workpiece. The multiple ejector rods can increase the force-bearing area with the workpiece, making demolding smoother and realizing automatic demolding. This process does not require manual removal of parts, avoiding damage and errors that may be caused by manual operation. It can also ensure the integrity and quality stability of the demolded workpiece and improve the overall production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the condenser block and water inlet pipe structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the injection channel and mold cavity structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the spring and telescopic plate structure of this utility model.

[0019] In the diagram: 1. Upper mold; 2. Inlet; 3. Lower mold; 4. Condensation assembly; 5. Demolding assembly; 6. Fixing plate; 401. Condensation block; 402. Water inlet pipe; 403. Water outlet pipe; 404. Water inlet; 405. Water outlet; 406. Injection channel; 407. Mold cavity; 501. Fixing rod; 502. Telescopic plate; 503. Spring; 504. Ejector rod; 505. Workpiece. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model embodiment provides a mold for a circular button-shaped part, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the upper mold 1 has a feed inlet 2 at its top, a lower mold 3 at its bottom, a condensation assembly 4 inside the lower mold 3, a demolding assembly 5 at its bottom, and a fixing plate 6 fixedly connected to the bottom of the lower mold 3. The condensation assembly 4 includes a condensation block 401, which is fixedly connected inside the lower mold 3. A water inlet pipe 402 and a water outlet pipe 403 are provided on one side of the condensation block 401. A water inlet 404 is fixedly connected to one side of the lower mold 3. A water outlet 405 is fixedly connected to one side of the 3. A material injection channel 406 is provided on the top of the condenser block 401. A mold cavity 407 is provided on the top of the condenser block 401. When the machine is started, the upper mold 1 moves downward, so that the bottom of the upper mold 1 presses the top of the lower mold 3 to make them fit tightly. At this time, the raw material enters from the feed port 2 and flows into the mold cavity 407 through the material injection channel 406. At the same time, the condensate enters from the water inlet 404, flows into the water outlet pipe 403 through the water inlet pipe 402, and finally flows out through the water outlet 405. This cycle accelerates the cooling and forming of the mold.

[0022] Furthermore, such as Figure 1 and Figure 3As shown, the inlet 404 is fixed to the outlet 405 by the lower mold 3, and one side of the lower mold 3 is fixedly connected to the inlet 404, and the other side of the lower mold 3 is also fixedly connected to the outlet 405. By setting the lower mold 3, the inlet 404 and the outlet 405 can be fixedly connected to the lower mold 3 at the same time, which improves the stability of the condensate flow.

[0023] Furthermore, such as Figure 2 As shown, the condenser block 401 has an inlet pipe 402 and an outlet pipe 403 inside, and the inlet pipe 402 and the outlet pipe 403 are connected to each other, which allows the condensate to flow fully inside the condenser block 401 and improves the condensation effect of the condenser block 401.

[0024] Furthermore, such as Figure 2 and Figure 3 As shown, the top of the condensation block 401 is provided with both an injection channel 406 and a mold cavity 407, and the injection channel 406 and the mold cavity 407 are connected, which allows the raw material to directly enter the mold cavity 407 through the injection channel 406, thereby improving the molding efficiency of the module.

[0025] This utility model embodiment provides a mold for a circular button-shaped part, such as Figure 1 and Figure 4 As shown, the demolding assembly 5 includes a fixed rod 501, which is fixedly connected to the bottom of the lower mold 3. A telescopic plate 502 is fixedly connected to the bottom of the fixed rod 501, and a spring 503 is fixedly connected to the top of the telescopic plate 502. A push rod 504 is fixedly connected to the top of the telescopic plate 502, and a workpiece 505 is placed on the top of the push rod 504. After molding, the upper mold 1 moves upward, which drives the fixed rod 501 to move upward, causing the spring 503 to lose tension and rebound upward, which drives the telescopic plate 502 to move upward. The telescopic plate 502 drives the push rod 504 to move upward, thereby causing the push rod 504 to push the molded workpiece 505 upward, thus completing the demolding.

[0026] Furthermore, such as Figure 1 and Figure 4 As shown, the telescopic plate 502 forms an elastic structure with the lower mold 3 through the spring 503, and the bottom of the spring 503 is fixedly connected to the top of the telescopic plate 502, and the top of the spring 503 is fixedly connected to the bottom of the lower mold 3. By setting the spring 503 to fix the telescopic plate 502 with the support of the lower mold 3, the spring 503 can be stretched when the telescopic plate 502 moves downward, which improves the fixing effect of the lower mold 3 on the telescopic plate 502.

[0027] Furthermore, such as Figure 4As shown, the top of the telescopic plate 502 is provided with multiple ejector pins 504, and the ejector pins 504 are evenly distributed on the bottom of the workpiece 505, which increases the contact area between the ejector pins 504 and the bottom of the workpiece 505 and enhances the demolding effect of the ejector pins 504.

[0028] Working principle: When the machine is started, the upper mold 1 moves downward, causing the bottom of the upper mold 1 to press against the top of the lower mold 3, making them fit tightly together. At this time, the raw material enters from the feed port 2 and flows into the mold cavity 407 through the injection channel 406. At the same time, condensate enters from the water inlet 404, flows into the water outlet pipe 403 through the water inlet pipe 402, and finally flows out through the water outlet 405. This cycle accelerates the cooling and forming of the mold. After forming, the upper mold 1 moves upward, driving the fixed rod 501 to move upward, causing the spring 503 to lose tension and rebound upward, driving the telescopic plate 502 to move upward. The telescopic plate 502 drives the ejector rod 504 to move upward, thereby causing the ejector rod 504 to push the formed workpiece 505 upward, completing the demolding.

[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A circular garter mould comprising an upper mould (1) characterised in that: The upper mold (1) has a feed inlet (2) at its top and a lower mold (3) at its bottom. The lower mold (3) has a condensation assembly (4) inside and a demolding assembly (5) at its bottom. The lower mold (3) has a fixed plate (6) fixedly connected to its bottom. The condensation assembly (4) includes a condensation block (401) and is fixedly connected to the interior of the lower mold (3). The condensation block (401) has a water inlet pipe (402) on one side and a water outlet pipe (403) on one side. The lower mold (3) has a water inlet (404) fixedly connected to one side and a water outlet (405) fixedly connected to one side. The condensation block (401) has a material injection channel (406) at its top and a mold cavity (407) at its top.

2. A circular grommet mold as defined in claim 1, wherein: The inlet (404) is fixed to the outlet (405) by means of the lower mold (3), and one side of the lower mold (3) is fixedly connected to the inlet (404), and one side of the lower mold (3) is also fixedly connected to the outlet (405).

3. A circular grommet mold as defined in claim 1, wherein: The condenser block (401) is provided with an inlet pipe (402) and an outlet pipe (403) inside, and the inlet pipe (402) and the outlet pipe (403) are connected.

4. A circular grommet mold as defined in claim 1, wherein: The top of the condensation block (401) is provided with both an injection channel (406) and a mold cavity (407), and the injection channel (406) and the mold cavity (407) are connected.

5. A circular grommet mold as defined in claim 1 wherein: The demolding assembly (5) includes a fixing rod (501), which is fixedly connected to the bottom of the lower mold (3). A telescopic plate (502) is fixedly connected to the bottom of the fixing rod (501), a spring (503) is fixedly connected to the top of the telescopic plate (502), and a push rod (504) is fixedly connected to the top of the telescopic plate (502). A workpiece (505) is provided on the top of the push rod (504).

6. A circular grommet die as defined in claim 5, wherein: The telescopic plate (502) forms an elastic structure with the lower mold (3) through the spring (503), and the bottom of the spring (503) is fixedly connected to the top of the telescopic plate (502), and the top of the spring (503) is fixedly connected to the bottom of the lower mold (3).

7. A circular grommet mold as defined in claim 5 wherein: The top of the telescopic plate (502) is provided with a plurality of push rods (504), and the push rods (504) are evenly distributed on the bottom of the workpiece (505).