A four-part mold

Abstract

This utility model discloses a four-part mold, relating to the field of mold technology. It includes a base, a bottom mold on top of the base, a top mold on top of the bottom mold, a limiting component between the bottom mold and the top mold, and a feeding component on top of the top mold. The limiting component includes a limiting shaft, which is located on one side of the top mold. During injection molding, the raw material is smoothly conveyed from the injection port to the feeding port, then sequentially enters the distributor, passes through the conveying pipe to the discharge port, and is finally precisely delivered into the four different cavities of the inner mold for forming. This ingenious design using a four-part mold, compared to a single-part mold, can more evenly distribute the ejection force during the ejection process after product molding, effectively reducing damage to the product caused by the ejection operation, improving product qualification rate, reducing production costs, and enhancing production efficiency and product quality stability.

Description

Technical Field

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

[0002] Molds are crucial process equipment in industrial production, often referred to as the "mother of industry." Through cavities of specific shapes, they mold materials such as metal, plastic, and rubber into parts of desired shapes and sizes under pressure and temperature. Molds are diverse, categorized by molding material (metal molds, plastic molds, rubber molds, etc.) and by processing technology (stamping molds, die-casting molds, injection molds, etc.). In automotive manufacturing, molds are used to produce body panels and engine components, ensuring high precision and quality. In the electronics industry, they manufacture small, precise mobile phone casings and chip packages. In the home appliance sector, molds ensure the neat appearance and stable performance of products like refrigerators and washing machines. High-quality molds possess characteristics such as high precision, long lifespan, and ease of processing, not only improving production efficiency and reducing costs but also guaranteeing product quality stability and consistency. With continuous advancements in industrial technology, molds are evolving towards higher precision, higher efficiency, and greater intelligence, continuously driving innovation and upgrading across various industries.

[0003] In existing single-parting-surface molds, due to structural limitations, the workpiece experiences concentrated stress during demolding, which easily leads to significant friction with the mold cavity or core, resulting in tearing. Furthermore, for workpieces with complex shapes, uneven demolding force can easily cause deformation. Therefore, we need a four-parting mold. Utility Model Content

[0004] The purpose of this utility model is to provide a four-part mold 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 four-part mold, including a base, a bottom mold at the top of the base, a top mold at the top of the bottom mold, a limiting component between the bottom mold and the top mold, a feeding component at the top of the top mold, the limiting component including a limiting shaft, the limiting shaft being disposed on one side of the top mold, an mounting plate being slidably connected to the outer wall of the limiting shaft, a limiting groove being formed inside the mounting plate, a baffle being fixedly connected to one side of the bottom mold, a stop block being fixedly connected to one side of the bottom mold, and an insert plate being disposed between the stop block and the baffle.

[0006] Preferably, the mounting plate forms a movable structure with the limiting groove and the limiting shaft, and the inner diameter of the limiting groove matches the outer diameter of the limiting shaft, and the inner wall of the limiting groove is fitted to the outer wall of the limiting shaft.

[0007] Preferably, the mounting plate has two limiting grooves, and the two limiting grooves are symmetrically arranged with the vertical line of the mounting plate as the axis of symmetry.

[0008] Preferably, the bottom mold forms a limiting structure with the insert plate through the baffle and the stop block, and the insert plate is disposed between the baffle and the stop block.

[0009] Preferably, the feeding assembly includes an injection port, the bottom of which is connected to a feed port, a distributor is fixedly connected to the bottom of the feed port, a conveying pipe is fixedly connected to the bottom of the distributor, a discharge port is fixedly connected to the bottom of the conveying pipe, and an inner mold is sealed to the bottom of the discharge port, with a mold cavity opened inside the inner mold.

[0010] Preferably, the injection port forms a fixed structure with the distributor through the feed port, and the feed port is located between the injection port and the distributor.

[0011] Preferably, the distributor is integrated with the discharge port via a conveying pipe, and the conveying pipe is located between the distributor and the discharge port. There are four discharge ports, and each of the four discharge ports is connected to a mold cavity inside the inner mold.

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

[0013] (1) During injection molding, the raw material is smoothly conveyed from the injection port to the feed port, and then enters the distributor in sequence, and reaches the discharge port through the conveying pipe. Finally, it is accurately conveyed to the four different mold cavities of the inner mold for molding. This ingenious design uses a four-part mold. Compared with a single part mold, it can more evenly distribute the ejection force during the ejection process after the product is formed, effectively reducing the damage to the product caused by the ejection operation, improving the product qualification rate, reducing production costs, and improving production efficiency and product quality stability.

[0014] (2) When the top mold moves downward and fits with the bottom mold, the limiting shaft slides along the limiting groove in the mounting plate, providing precise guidance for the mold closing action and ensuring that the mold closing position is accurate. At the same time, the insert plate is inserted between the baffle and the stop block, which greatly enhances the connection stability between the top mold and the bottom mold and effectively avoids problems such as loosening and displacement of the mold during use. In addition, this design can also limit the degree of mold opening and closing, prevent excessive opening and closing, reduce mold collision damage, extend mold service life, and reduce production costs. 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 limiting component structure of this utility model;

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

[0018] Figure 4 This is a schematic diagram of the conveying pipe and discharge port structure of this utility model.

[0019] In the diagram: 1. Base; 2. Bottom mold; 3. Top mold; 4. Limiting component; 401. Limiting shaft; 402. Mounting plate; 403. Limiting groove; 404. Baffle; 405. Stop block; 406. Insert plate; 5. Feeding component; 501. Injection port; 502. Feed port; 503. Diverter; 504. Conveying pipe; 505. Discharge port; 506. Inner mold; 507. Mold cavity. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 This application will be described in further detail below.

[0021] 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.

[0022] This utility model embodiment provides a four-part mold, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the device includes a base 1, a bottom mold 2 on top of the base 1, a top mold 3 on top of the bottom mold 2, a limiting component 4 between the bottom mold 2 and the top mold 3, and a feeding component 5 on top of the top mold 3. The limiting component 4 includes a limiting shaft 401, which is located on one side of the top mold 3. A mounting plate 402 is slidably connected to the outer wall of the limiting shaft 401, and a limiting groove 403 is formed inside the mounting plate 402. A baffle 404 is fixedly connected to one side of the bottom mold 2. A stop block 405 is fixedly connected, and an insert plate 406 is provided between the stop block 405 and the baffle 404. When the top mold 3 moves downward and fits with the bottom mold 2, the limiting shaft 401 on one side of the top mold 3 can slide along the limiting groove 403 inside the mounting plate 402, and the insert plate 406 on one side of the top mold 3 can be inserted between the baffle 404 and the stop block 405. This can improve the connection stability between the top mold 3 and the bottom mold 2 and reduce the occurrence of excessive opening and closing.

[0023] Furthermore, such as Figure 2 As shown, the mounting plate 402 forms a movable structure with the limiting shaft 401 through the limiting groove 403, and the inner diameter of the limiting groove 403 matches the outer diameter of the limiting shaft 401. The inner wall of the limiting groove 403 fits against the outer wall of the limiting shaft 401, which strengthens the connection between the mounting plate 402 and the limiting shaft 401. This allows the limiting shaft 401 to be installed in the limiting groove 403 inside the mounting plate 402. The opening and closing path of the top mold 3 can be restricted by the limiting groove 403.

[0024] Furthermore, such as Figure 2 As shown, there are two limiting grooves 403 on the mounting plate 402, and the two limiting grooves 403 are symmetrically arranged with the vertical line of the mounting plate 402 as the axis of symmetry. By setting two limiting grooves 403 on the mounting plate 402, the movement path between the bottom mold 2 and the top mold 3 can be synchronously limited by the two limiting grooves 403, reducing the occurrence of excessive opening and closing.

[0025] Furthermore, such as Figure 2 As shown, the bottom mold 2 forms a limiting structure with the insert plate 406 through the baffle 404 and the stop block 405. The insert plate 406 is set between the baffle 404 and the stop block 405, which strengthens the connection between the bottom mold 2 and the baffle 404. This allows the baffle 404 and the stop block 405 to limit the insert plate 406, so that the top mold 3 can be stably fitted and installed with the bottom mold 2 during the movement.

[0026] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the feeding assembly 5 includes an injection port 501, the bottom of which is connected to a feed port 502. A distributor 503 is fixedly connected to the bottom of the feed port 502, a conveying pipe 504 is fixedly connected to the bottom of the distributor 503, and a discharge port 505 is fixedly connected to the bottom of the conveying pipe 504. An inner mold 506 is sealed to the bottom of the discharge port 505. A mold cavity 507 is opened inside the inner mold 506. During injection molding, the raw material can be conveyed to the feed port 502 through the injection port 501, and the material in the feed port 502 can enter the distributor 503. The material in the distributor 503 can be conveyed to the discharge port 505 through the conveying pipe 504, and the material in the discharge port 505 can be conveyed to the inner mold 506. The material can be conveyed to four different mold cavities 507 for molding. Thus, by setting a four-part mold, the damage caused by ejection after molding by a single part mold can be reduced.

[0027] Furthermore, such as Figure 3 and Figure 4 As shown, the injection port 501 forms a fixed structure with the feed port 502 and the distributor 503. The feed port 502 is located between the injection port 501 and the distributor 503. Through the feed port 502, the raw material can be injected by an external injection molding machine through the injection port 501 and transported to the distributor 503 through the feed port 502.

[0028] Furthermore, such as Figure 3 and Figure 4 As shown, the distributor 503 forms an integrated structure with the discharge port 505 through the conveying pipe 504. The conveying pipe 504 is located between the distributor 503 and the discharge port 505. There are four discharge ports 505, and each of the four discharge ports 505 is connected to the mold cavity 507 inside the inner mold 506. This strengthens the connection between the conveying pipe 504 and the inner mold 506, allowing the four discharge ports 505 to simultaneously perform injection molding on the four mold cavities 507, thus improving molding efficiency.

[0029] Working principle: During use, when the top mold 3 moves downward and fits against the bottom mold 2, the limiting shaft 401 on one side of the top mold 3 can slide along the limiting groove 403 inside the mounting plate 402. The insert plate 406 on one side of the top mold 3 can be inserted between the baffle plate 404 and the stop block 405, thereby ensuring the connection stability between the top mold 3 and the bottom mold 2 and reducing excessive opening and closing. At the same time, during injection molding, the raw material can be transported to the feed port 502 through the injection port 501, and the material in the feed port 502 can enter the distributor 503. The material in the distributor 503 can be transported to the discharge port 505 through the conveying pipe 504, and the material in the discharge port 505 can be transported to the inner mold 506 and then to four different mold cavities 507 for molding. Thus, by setting a four-part mold, the damage caused by ejection after molding by a single part mold can be reduced.

[0030] 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 split mold comprising a base (1), characterized in that: The base (1) is provided with a bottom mold (2) at the top, and a top mold (3) is provided at the top of the bottom mold (2). A limiting component (4) is provided between the bottom mold (2) and the top mold (3). A feeding component (5) is provided at the top of the top mold (3). The limiting component (4) includes a limiting shaft (401). The limiting shaft (401) is provided on one side of the top mold (3). An mounting plate (402) is slidably connected to the outer wall of the limiting shaft (401). A limiting groove (403) is opened inside the mounting plate (402). A baffle (404) is fixedly connected to one side of the bottom mold (2). A stop block (405) is fixedly connected to one side of the bottom mold (2). An insert plate (406) is provided between the stop block (405) and the baffle (404).

2. A split mold as defined in claim 1, wherein: The mounting plate (402) forms a movable structure with the limiting shaft (401) through the limiting groove (403), and the inner diameter of the limiting groove (403) matches the outer diameter of the limiting shaft (401), and the inner wall of the limiting groove (403) is fitted to the outer wall of the limiting shaft (401).

3. A split mold as defined in claim 1, wherein: The mounting plate (402) has two limiting grooves (403), and the two limiting grooves (403) are symmetrically arranged with the vertical line of the mounting plate (402) as the axis of symmetry.

4. The split die of claim 1 wherein: The bottom mold (2) forms a limiting structure with the baffle (404) and the stop block (405) and the insert plate (406), and the insert plate (406) is disposed between the baffle (404) and the stop block (405).

5. A split mold as defined in claim 1, wherein: The feeding assembly (5) includes an injection port (501), the bottom of which is connected to a feed port (502). A distributor (503) is fixedly connected to the bottom of the feed port (502), a conveying pipe (504) is fixedly connected to the bottom of the distributor (503), a discharge port (505) is fixedly connected to the bottom of the conveying pipe (504), and an inner mold (506) is sealed to the bottom of the discharge port (505). A mold cavity (507) is opened inside the inner mold (506).

6. A split mold according to claim 5, wherein: The injection port (501) forms a fixed structure with the flow divider (503) through the feed port (502), and the feed port (502) is located between the injection port (501) and the flow divider (503).

7. A split mold as defined in claim 5, wherein: The distributor (503) is integrated with the discharge port (505) through the conveying pipe (504), and the conveying pipe (504) is located between the distributor (503) and the discharge port (505). There are four discharge ports (505), and the four discharge ports (505) are respectively connected to the mold cavity (507) inside the inner mold (506).

Images