High-precision die-casting die for bearing

By introducing physical contact reminders such as rotating plates and warning posts into the die-casting mold, as well as a motor-driven ejection system, the problems of operator misoperation and material ejection in the die-casting mold are solved, thereby improving production safety and efficiency.

CN224168722UActive Publication Date: 2026-04-28NINGBO JUNYING PRECISION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO JUNYING PRECISION MASCH CO LTD
Filing Date
2025-05-07
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing die-casting molds do not provide warnings to workers before die-casting, leading to accidental entry into dangerous areas. Furthermore, the lack of material ejection devices results in deformation or damage to the castings, affecting product quality and production efficiency.

Method used

A high-precision die-casting mold for bearings was designed, including a beater assembly and an ejector assembly. The die-casting block is driven by a cylinder for die casting, and a rotating plate and a warning post are used for physical contact reminders. After die casting is completed, the casting is quickly ejected by a gear and threaded rod system driven by a motor.

Benefits of technology

It enables physical contact reminders to workers when the die-casting process starts, preventing misoperation, and quickly ejects the casting after die-casting is completed, improving production efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of die-casting, and discloses a bearing high-precision die-casting die which comprises a working table, a beater assembly is arranged at the top of the working table, and an ejection assembly is arranged at the bottom of the working table. The beater assembly comprises an upper fixing plate, a rotating column is rotationally embedded in the upper fixing plate, the outer surface of the rotating column is rotationally sleeved with a rotating plate, one side of the outer surface of the rotating plate is fixedly connected with a connecting rod, and the side, away from the rotating plate, of the connecting rod is fixedly connected with a warning column. The ejection assembly comprises a threaded box, a threaded rod is rotationally embedded in the threaded box, the outer surface of the threaded rod is sleeved with a threaded block in a threaded mode, a sliding rod is fixedly connected to the top of the outer surface of the threaded block, and the sliding rod is slidably embedded in the threaded box. The problems that in the using process, a worker is not warned and reminded before die casting, and a casting needs to be manually taken out are solved.
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Description

Technical Field

[0001] This utility model relates to the field of die casting technology, specifically a high-precision die casting mold for bearings. Background Technology

[0002] Die casting molds are precision tools used in die casting production to manufacture metal parts. They use high pressure to fill molten metal into the mold cavity at high speed, and after the metal solidifies, a casting with the required shape and size is obtained. The design and manufacturing quality of die casting molds directly affect the quality of castings, production efficiency and cost.

[0003] Chinese Patent Publication No. CN219310039U discloses "A Die-casting Mold," comprising a base, a lower mold fixedly connected to the surface of the base, ventilation holes on the surface of the lower mold, a limiting groove on the surface of the lower mold, a limiting block connected inside the limiting groove, a mold core connected to the surface of the limiting block, a telescopic rod fixedly installed on the surface of the lower mold, an upper mold fixedly connected to the other end of the telescopic rod, an injection port on the surface of the upper mold, and a buffer mechanism on the surface of the lower mold. This die-casting mold, through the buffer mechanism, allows the positioning rod to slide within the positioning groove during mold closing. At this time, a damping plate adheres to the inner wall of the positioning groove, generating damping. This damping causes the upper mold to slide slowly downwards. When the positioning rod contacts the limiting plate, the limiting plate is pressed downwards by the positioning rod, causing the spring to deform and generate elastic potential energy. This elastic potential energy reduces the force generated during the descent of the upper mold to a certain extent, thereby reducing the force generated during mold closing.

[0004] While existing technologies reduce the force generated during mold closing, they fail to provide warnings to workers before die casting. Workers may not be aware of the danger in time and could enter the danger zone due to negligence or misoperation, resulting in injury. Furthermore, the lack of material ejection during use means that improper operation or uneven force can easily cause deformation or damage to the castings when manually removing them, affecting product quality. In addition, manual removal takes a lot of time, leading to low production efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a high-precision die-casting mold for bearings, in order to solve the problems in the background art where no warnings or reminders are given to workers before die-casting, workers may not be able to perceive the danger in time, and workers may enter the danger zone due to negligence or misoperation, resulting in injury. At the same time, there is no material ejection during use, and when manually removing parts, improper operation or uneven force can easily lead to deformation or damage of the castings, affecting product quality. In addition, manual removal of parts takes a lot of time, resulting in low production efficiency.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-precision die-casting mold for bearings, including a worktable, wherein a beater assembly is provided on the top of the worktable and an ejector assembly is provided on the bottom of the worktable;

[0007] The beater assembly includes an upper fixed plate, and a rotating column is rotatably embedded inside the upper fixed plate. A rotating plate is rotatably sleeved on the outer surface of the rotating column, and a connecting rod is fixedly connected to one side of the outer surface of the rotating plate. A warning column is fixedly connected to the side of the connecting rod away from the rotating plate.

[0008] The ejection assembly includes a threaded box, and a threaded rod is rotatably embedded inside the threaded box. A threaded block is threaded on the outer surface of the threaded rod, and a slide rod is fixedly connected to the top of the outer surface of the threaded block. The slide rod is slidably embedded inside the threaded box.

[0009] Preferably, a plurality of fixing blocks are fixedly connected to one side of the outer surface of the workbench, and a die-casting block is slidably embedded inside each of the fixing blocks. An upper mold is fixedly connected to the bottom of the outer surface of the die-casting block, and a lower mold is provided inside the workbench. The slide rod is slidably embedded inside the lower mold.

[0010] Preferably, a plurality of cylinders are fixedly connected to one side of the outer surface of the workbench, and each of the plurality of cylinders is provided with a telescopic column inside, and the side of the plurality of telescopic columns away from the cylinders is fixedly connected to the die-cast block.

[0011] Preferably, a first connecting post is rotatably embedded inside the rotating plate, and a connecting plate is rotatably sleeved on the outer surface of the first connecting post. A second connecting post is rotatably embedded inside the connecting plate, and a lower fixing plate is rotatably sleeved on the outer surface of the second connecting post. A lower fixing post is fixedly connected to one side of the outer surface of the lower fixing plate.

[0012] Preferably, the lower fixing column is fixedly connected to the outer surface of the die-cast block, and a plurality of upper fixing columns are fixedly connected to one side of the outer surface of the upper fixing plate, and the plurality of upper fixing columns are all fixedly connected to one side of the outer surface of the fixing block.

[0013] Preferably, a power column is rotatably embedded inside the threaded box, and a lower helical gear is fixedly connected to the outer surface of the power column. An upper helical gear is rotatably embedded inside the threaded box, and the outer surface of the upper helical gear meshes with the lower helical gear. One side of the outer surface of the upper helical gear is fixedly connected to the threaded rod.

[0014] Preferably, the threaded box is provided with a limit rod inside, the threaded block is slidably sleeved on the outer surface of the limit rod, a motor plate is fixedly connected to one side of the outer surface of the threaded box, and a lifting motor is provided on the top of the outer surface of the motor plate, the output shaft of the lifting motor is fixedly connected to the power column.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0016] This invention uses a cylinder to drive a die-casting block for die casting. When the die-casting block moves downwards for die casting, the movement of the die-casting block drives the movement of a lower fixed plate via a lower fixed column. The lower fixed plate is connected to a connecting plate via a second connecting column, and the connecting plate is connected to a rotating plate via a first connecting column. The rotating plate is then connected to an upper fixed plate via a rotating column, and the upper fixed plate is fixedly connected to the fixed block via an upper fixed column. Therefore, when the die-casting block moves downwards, it drives the rotating plate to rotate around the rotating column as the center through the connecting plate and the lower fixed plate. When the rotating plate rotates, it drives a warning column to sweep in a fan-shaped arc forward via a connecting rod. The warning column is made of a soft material, and it hits the worker's hand or arm to remind the worker that the device is about to perform die casting, providing a direct physical contact warning. Through the above technical solution, the device is triggered synchronously when the die casting action is started, forming a physical barrier and actively sweeping the area in front, preventing workers from entering the danger zone due to misoperation or negligence.

[0017] Secondly, after die casting is completed, the lifting motor on the top of the motor plate is turned on. The output shaft of the lifting motor is fixedly connected to the power column. The lifting motor drives the power column to rotate, which in turn drives the connected lower helical gear to rotate. The rotation of the lower helical gear drives the geared upper helical gear to rotate, which in turn drives the threaded rod to rotate. The rotation of the threaded rod drives the threaded block to rise and fall. The movement of the threaded block drives the slide rod to rise and fall. The slide rod has a hollow structure and is slidably embedded in the thread box and the lower mold. The slide rod ejects the material inside the lower mold. Through the above technical solution, the casting is quickly ejected from the lower mold after die casting is completed, reducing the time for manual part removal and thus improving the overall efficiency of the production line. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the thug component of this utility model;

[0020] Figure 3 This is a three-dimensional structural diagram of the ejector assembly of this utility model;

[0021] The components include: 1. Workbench; 2. Cylinder; 201. Telescopic column; 3. Fixing block; 301. Die-casting block; 302. Upper mold; 303. Lower mold; 4. Upper fixing plate; 401. Upper fixing column; 402. Rotating column; 5. Warning column; 501. Connecting rod; 502. Rotating plate; 503. First connecting column; 504. Connecting plate; 505. Second connecting column; 506. Lower fixing plate; 507. Lower fixing column; 6. Threaded box; 601. Threaded rod; 602. Limiting rod; 603. Threaded block; 604. Sliding rod; 7. Power column; 701. Lower helical gear; 702. Upper helical gear; 8. Lifting motor; 801. Motor plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3 A high-precision die-casting mold for bearings includes a worktable 1, a beater assembly on the top of the worktable 1, and an ejector assembly on the bottom of the worktable 1.

[0024] The beater assembly includes an upper fixed plate 4, and a rotating column 402 is rotatably embedded inside the upper fixed plate 4. A rotating plate 502 is rotatably sleeved on the outer surface of the rotating column 402. A connecting rod 501 is fixedly connected to one side of the outer surface of the rotating plate 502, and a warning column 5 is fixedly connected to the side of the connecting rod 501 away from the rotating plate 502.

[0025] The ejection assembly includes a threaded box 6, and a threaded rod 601 is rotatably embedded inside the threaded box 6. A threaded block 603 is threadedly sleeved on the outer surface of the threaded rod 601, and a slide rod 604 is fixedly connected to the top of the outer surface of the threaded block 603. The slide rod 604 is slidably embedded inside the threaded box 6.

[0026] Through the above technical solution, the die-casting block 301 is driven by the cylinder 2 to perform die casting. When the die-casting block 301 moves downward for die casting, the movement of the die-casting block 301 drives the lower fixed plate 506 to move via the lower fixed column 507. The lower fixed plate 506 is connected to the connecting plate 504 via the second connecting column 505. The connecting plate 504 is connected to the rotating plate 502 via the first connecting column 503. The rotating plate 502 is connected to the upper fixed plate 4 via the rotating column 402. The upper fixed plate 4 is fixedly connected to the fixed block 3 via the upper fixed column 401. Therefore, when the die-casting block 301 moves downward, from The connecting plate 504 and the lower fixed plate 506 drive the rotating plate 502 to rotate around the rotating column 402. When the rotating plate 502 rotates, the connecting rod 501 drives the warning column 5 to sweep in a fan shape in front. The warning column 5 is made of a soft material. The warning column 5 hits the worker's hand or arm, thus reminding the worker that the device is about to be die-cast. It provides a direct physical contact warning. Through the above technical solution, it is triggered synchronously when the die-casting action is started, forming a physical barrier and actively sweeping the area in front, preventing the worker from entering the danger zone due to misoperation or negligence.

[0027] With the above technical solution, after die casting is completed, the lifting motor 8 on the top of the motor plate 801 is turned on. The output shaft of the lifting motor 8 is fixedly connected to the power column 7. The lifting motor 8 drives the power column 7 to rotate. The rotation of the power column 7 drives the connected lower helical gear 701 to rotate. The rotation of the lower helical gear 701 drives the geared upper helical gear 702 to rotate. The rotation of the upper helical gear 702 drives the threaded rod 601 to rotate. The rotation of the threaded rod 601 drives the threaded block 603 to rise and fall. The movement of the threaded block 603 drives the slide rod 604 to rise and fall. The slide rod 604 has a hollow structure and is slidably embedded in the thread box 6 and the lower mold 303. The slide rod 604 ejects the material inside the lower mold 303. With the above technical solution, the casting is quickly ejected from the lower mold 303 after die casting is completed, reducing the time for manual part removal and thus improving the overall efficiency of the production line.

[0028] Specifically, a plurality of fixing blocks 3 are fixedly connected to one side of the outer surface of the workbench 1, and a die-casting block 301 is slidably embedded inside the plurality of fixing blocks 3. An upper mold 302 is fixedly connected to the bottom of the outer surface of the die-casting block 301, and a lower mold 303 is provided inside the workbench 1. A slide rod 604 is slidably embedded inside the lower mold 303.

[0029] The above technical solution involves die casting via the upper mold 302 and the lower mold 303.

[0030] Specifically, multiple cylinders 2 are fixedly connected to one side of the outer surface of the workbench 1, and each of the multiple cylinders 2 has a telescopic column 201 inside. The side of the multiple telescopic columns 201 away from the cylinders 2 is fixedly connected to the die-cast block 301.

[0031] Through the above technical solution, the die-casting block 301 is driven by the cylinder 2 to perform die casting.

[0032] Specifically, the rotating plate 502 has a first connecting post 503 rotatably embedded inside, and a connecting plate 504 is rotatably sleeved on the outer surface of the first connecting post 503. The connecting plate 504 has a second connecting post 505 rotatably embedded inside, and a lower fixing plate 506 is rotatably sleeved on the outer surface of the second connecting post 505. A lower fixing post 507 is fixedly connected to one side of the outer surface of the lower fixing plate 506.

[0033] Through the above technical solution, the lower fixed plate 506 is connected to the connecting plate 504 through the second connecting column 505, the connecting plate 504 is connected to the rotating plate 502 through the first connecting column 503, and the rotating plate 502 is connected to the upper fixed plate 4 through the rotating column 402.

[0034] Specifically, the lower fixing post 507 is fixedly connected to the outer surface of the die-cast block 301, and multiple upper fixing posts 401 are fixedly connected to one side of the outer surface of the upper fixing plate 4, and all multiple upper fixing posts 401 are fixedly connected to one side of the outer surface of the fixing block 3.

[0035] Through the above technical solution, the die-casting block 301 moves by the lower fixed column 507 driving the lower fixed plate 506 to move, and the upper fixed plate 4 is fixedly connected to the fixed block 3 by the upper fixed column 401.

[0036] Specifically, the threaded box 6 has a power column 7 rotatably embedded inside, and a lower helical gear 701 is fixedly connected to the outer surface of the power column 7. The threaded box 6 has an upper helical gear 702 rotatably embedded inside, and the outer surface of the upper helical gear 702 meshes with the lower helical gear 701. One side of the outer surface of the upper helical gear 702 is fixedly connected to the threaded rod 601.

[0037] Through the above technical solution, the rotation of the power column 7 drives the connected lower helical gear 701 to rotate, the rotation of the lower helical gear 701 drives the geared upper helical gear 702 to rotate, and the rotation of the upper helical gear 702 drives the threaded rod 601 to rotate.

[0038] Specifically, the threaded box 6 is provided with a limit rod 602 inside, and the threaded block 603 is slidably sleeved on the outer surface of the limit rod 602. A motor plate 801 is fixedly connected to one side of the outer surface of the threaded box 6, and a lifting motor 8 is provided on the top of the outer surface of the motor plate 801. The output shaft of the lifting motor 8 is fixedly connected to the power column 7.

[0039] The above technical solution uses a lifting motor 8 to drive the power column 7 to rotate.

[0040] In use, the die-casting block 301 is driven by cylinder 2 for die casting. When the die-casting block 301 moves downward for die casting, the movement of the die-casting block 301 drives the lower fixed plate 506 to move via the lower fixed column 507. The lower fixed plate 506 is connected to the connecting plate 504 via the second connecting column 505. The connecting plate 504 is connected to the rotating plate 502 via the first connecting column 503. The rotating plate 502 is connected to the upper fixed plate 4 via the rotating column 402. The upper fixed plate 4 is fixedly connected to the fixed block 3 via the upper fixed column 401. When the die-casting block 301 moves downward, it drives the rotating plate 502 to rotate around the rotating column 402 via the connecting plate 504 and the lower fixed plate 506. As the rotating plate 502 rotates, it drives the warning column 5 to sweep forward in a fan-shaped motion via the connecting rod 501. The warning column 5 is made of a soft material, and when it hits the worker's hand or arm, it alerts the worker that the die-casting process is about to begin, providing a direct physical contact warning. This technical solution allows for synchronized operation when the die-casting process starts. Triggered, a physical barrier is formed and actively sweeps across the area in front, preventing workers from entering the danger zone due to misoperation or negligence. After die casting is completed, the lifting motor 8 on the top of the motor plate 801 is activated. The output shaft of the lifting motor 8 is fixedly connected to the power column 7. The lifting motor 8 drives the power column 7 to rotate, which in turn drives the connected lower helical gear 701 to rotate. The rotation of the lower helical gear 701 drives the geared upper helical gear 702 to rotate, which in turn drives the threaded rod 601 to rotate. The rotation of the threaded rod 601 drives the threaded block 603 to rise and fall. The movement of the threaded block 603 drives the slide rod 604 to rise and fall. The slide rod 604 has a hollow structure and is slidably embedded inside the thread box 6 and the lower mold 303. The slide rod 604 ejects the material inside the lower mold 303. Through the above technical solution, the casting is quickly ejected from the lower mold 303 after die casting is completed, reducing the time for manual part removal and thus improving the overall efficiency of the production line.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision die-casting mold for bearings, comprising a worktable (1), characterized in that: The top of the workbench (1) is provided with a beater assembly, and the bottom of the workbench (1) is provided with an ejector assembly; The beater assembly includes an upper fixed plate (4), and a rotating column (402) is rotatably embedded inside the upper fixed plate (4). A rotating plate (502) is rotatably sleeved on the outer surface of the rotating column (402), and a connecting rod (501) is fixedly connected to one side of the outer surface of the rotating plate (502). A warning column (5) is fixedly connected to the side of the connecting rod (501) away from the rotating plate (502). The ejection assembly includes a threaded box (6), and a threaded rod (601) is rotatably embedded inside the threaded box (6). A threaded block (603) is threaded on the outer surface of the threaded rod (601), and a slide rod (604) is fixedly connected to the top of the outer surface of the threaded block (603). The slide rod (604) is slidably embedded inside the threaded box (6).

2. The high-precision die-casting mold for bearings according to claim 1, characterized in that: Multiple fixing blocks (3) are fixedly connected to one side of the outer surface of the workbench (1), and a die-casting block (301) is slidably embedded inside the multiple fixing blocks (3). An upper mold (302) is fixedly connected to the bottom of the outer surface of the die-casting block (301), and a lower mold (303) is provided inside the workbench (1). The slide rod (604) is slidably embedded inside the lower mold (303).

3. The high-precision die-casting mold for bearings according to claim 1, characterized in that: Multiple cylinders (2) are fixedly connected to one side of the outer surface of the workbench (1), and each of the multiple cylinders (2) is provided with a telescopic column (201). The side of the multiple telescopic columns (201) away from the cylinders (2) is fixedly connected to the die-cast block (301).

4. The high-precision die-casting mold for bearings according to claim 1, characterized in that: The rotating plate (502) is rotatably embedded with a first connecting post (503), and the outer surface of the first connecting post (503) is rotatably sleeved with a connecting plate (504). The connecting plate (504) is rotatably embedded with a second connecting post (505), and the outer surface of the second connecting post (505) is rotatably sleeved with a lower fixing plate (506). A lower fixing post (507) is fixedly connected to one side of the outer surface of the lower fixing plate (506).

5. A high-precision die-casting mold for bearings according to claim 4, characterized in that: The lower fixing column (507) is fixedly connected to the outer surface of the die-cast block (301), and multiple upper fixing columns (401) are fixedly connected to one side of the outer surface of the upper fixing plate (4), and multiple upper fixing columns (401) are fixedly connected to one side of the outer surface of the fixing block (3).

6. The high-precision die-casting mold for bearings according to claim 1, characterized in that: The threaded box (6) is internally fitted with a power column (7), and the outer surface of the power column (7) is fixedly connected with a lower helical gear (701). The threaded box (6) is internally fitted with an upper helical gear (702), and the outer surface of the upper helical gear (702) meshes with the lower helical gear (701). One side of the outer surface of the upper helical gear (702) is fixedly connected to the threaded rod (601).

7. A high-precision die-casting mold for bearings according to claim 1, characterized in that: The threaded box (6) is provided with a limit rod (602) inside. The threaded block (603) is slidably sleeved on the outer surface of the limit rod (602). A motor plate (801) is fixedly connected to one side of the outer surface of the threaded box (6), and a lifting motor (8) is provided on the top of the outer surface of the motor plate (801). The output shaft of the lifting motor (8) is fixedly connected to the power column (7).

Citation Information

Patent Citations

  • Die-casting die

    CN219310039U