Die-casting die with automatic demolding mechanism

By introducing an automatic demolding mechanism consisting of a hydraulic rod, an electromagnet, and a drive motor into the die-casting mold, the safety hazards of manual demolding are solved, automated demolding is achieved, and operational safety and production efficiency are improved.

CN223916631UActive Publication Date: 2026-02-17CHONGQING TAIDEXING PRECISION MOULD CO LTD
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Patent Information

Application Number
CN202520467539.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-02-17
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Existing die-casting molds require manual operation by staff during the demolding process, posing safety hazards and being inconvenient to use.

Method used

A die-casting mold with an automatic demolding mechanism was designed. The automatic demolding is achieved by using components such as hydraulic rods, electromagnets and drive motors. The hydraulic rods drive the mold to move, the electromagnets attract the workpiece, and the drive motors rotate the mold to achieve automatic transfer and demolding of the workpiece.

Benefits of technology

It enables automated demolding of die-casting molds, improving safety and ease of operation, reducing manual intervention, and ensuring production continuity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of die-casting dies, in particular to a die-casting die with an automatic demoulding mechanism, which comprises a bottom table, the top of the bottom table is connected with a pedestal through a bolt, and a spring is welded at the top of the pedestal. Materials needing to be die-cast are placed on the top of the lower die, the hydraulic rod does telescopic motion to drive the connecting block, the upper die and the pressing head to do up-down motion, the pressing head is used for die-casting the materials in the lower die, in the die-casting process, the lower die drives the spring to do telescopic motion, and after die-casting is completed, the spring is driven by the lower die to do telescopic motion. A workpiece in the lower die is magnetically attracted through the electromagnet, so that the top of the workpiece is attached to the bottom of the pressing head, then the hydraulic rod does telescopic motion to drive the connecting block, the upper die, the pressing head, the electromagnet and the workpiece to move up and down, and the workpiece is lifted up from the lower die; and then the rotating plate, the mounting seat and the hydraulic rod are driven to rotate through a transmission shaft of the driving motor.
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Description

Technical Field

[0001] This utility model relates to the field of die casting mold technology, specifically a die casting mold with an automatic demolding mechanism. Background Technology

[0002] Die casting molds are tools used to cast metal parts; they are tools used to complete the die casting process on specialized die casting and forging machines.

[0003] A search revealed that the announcement number CN220093011U, entitled "A Demolding Mechanism for Die Casting Molds," includes a worktable, a fixed frame, and two support columns. Research and analysis showed that although it has the advantage of pushing the mold placed inside the mold groove to the top of the mold groove opening, facilitating the complete separation of the mold from the inside of the mold groove and making demolding easier for workers, it also has the following disadvantages to some extent.

[0004] For example, during the use of this device, after the mold is pushed out, it usually needs to be manually picked up by the staff. When picking it up, the staff needs to put their hands between the molds, which can easily affect the personal safety of the staff and is inconvenient for the staff to use. In order to solve the above technical problems, we have designed a die casting mold with an automatic demolding mechanism. Utility Model Content

[0005] The purpose of this invention is to provide a die-casting mold with an automatic demolding mechanism, which has the advantage of easy demolding and retrieval. It solves the problem that in the process of using this device, after the mold is pushed out, the operator usually needs to manually retrieve it. When retrieving it, the operator has to put their hand between the molds, which may affect the operator's personal safety and is inconvenient for the operator to use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a die-casting mold with an automatic demolding mechanism, comprising a base, a platform connected to the top of the base by bolts, a spring welded to the top of the platform, a lower mold welded to the top of the spring, a support column welded to the top of the base, a top plate welded to the top of the support column, a driving component provided on the surface of the top plate, a hydraulic rod provided at the bottom of the driving component, a connecting block connected to the bottom of the hydraulic rod by bolts, an electric telescopic rod connected to the inner cavity of the connecting block by bolts, a connecting plate connected to the bottom of the electric telescopic rod by bolts, a pushing column welded to the bottom of the connecting plate, an upper mold connected to the bottom of the connecting block by bolts, an installation groove provided at the bottom of the upper mold, a pressure head connected to the bottom of the upper mold by bolts, and an electromagnet connected to the top of the pressure head by bolts.

[0007] Preferably, the driving component includes a drive motor, the top of the top plate is connected to the drive motor by bolts, the drive shaft of the drive motor is connected to a rotating plate by bolts, mounting seats are welded to both sides of the bottom of the rotating plate, and hydraulic rods are connected to the inner cavity of the mounting seats by bolts.

[0008] Preferably, a positioning frame is welded to the top of the platform, and a sliding frame is welded to the bottom of the lower mold, with the surface of the sliding frame slidably connected to the positioning frame.

[0009] Preferably, guide rods are welded to the four corners of the top of the lower mold, and sliding holes are provided at the bottom of the upper mold, with the surfaces of the guide rods slidably connected to the sliding holes.

[0010] Preferably, a fixing block is bolted to the right side of the base platform, and a conveyor belt is bolted to the right side of the fixing block.

[0011] Preferably, the surface of the mounting groove is provided with a movable hole, and the surface of the connecting plate is slidably connected to the movable hole.

[0012] Preferably, the four corners of the bottom of the platform are each bolted with a first support leg, and the bottom of the conveyor belt is bolted with a second support leg.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model places the material to be die-cast on the top of the lower mold, and drives the connecting block, upper mold and pressure head to move up and down by the telescopic movement of the hydraulic rod. The pressure head performs die casting on the material in the lower mold. During the die casting process, the lower mold drives the spring to telescopic movement, and the spring buffers the device to prevent it from being damaged.

[0015] 2. After die casting is completed, this utility model uses an electromagnet to magnetically attract the workpiece in the lower mold, causing the top of the workpiece to adhere to the bottom of the pressure head. Then, the hydraulic rod moves up and down, driving the connecting block, upper mold, pressure head, electromagnet, and workpiece to lift the workpiece from the lower mold. The drive motor's transmission shaft then drives the rotating plate, mounting base, and hydraulic rod to rotate, which in turn drives the connecting block, upper mold, pressure head, and workpiece to rotate, moving the workpiece to the top of the conveyor belt. When the electromagnet is de-energized and its magnetism disappears, the workpiece at the bottom of the pressure head cannot fall automatically. The electric telescopic rod moves up and down, driving the connecting plate and push column to push the workpiece down. Simultaneously, the pressure head, now rotated to the top of the lower mold, can be die-cast again, facilitating continuous processing. Attached Figure Description

[0016] Figure 1 This is an isometric view of the structure of this utility model;

[0017] Figure 2 This is a perspective view of the base platform and lower mold of this utility model;

[0018] Figure 3 This is a perspective view of the connecting block and the pushing column of this utility model;

[0019] Figure 4 This is a perspective view of the support column and hydraulic rod of this utility model.

[0020] In the diagram: 1. Base platform; 2. Platform; 3. Spring; 4. Lower mold; 5. Support column; 6. Top plate; 7. Drive motor; 8. Rotating plate; 9. Mounting seat; 10. Hydraulic rod; 11. Connecting block; 12. Upper mold; 13. Mounting groove; 14. Press head; 15. Electromagnet; 16. Electric telescopic rod; 17. Connecting plate; 18. Push column; 19. Fixing block; 20. Conveyor belt; 21. Drive assembly. Detailed Implementation

[0021] Please see Figures 1-4 A die-casting mold with an automatic demolding mechanism includes a base 1, a platform 2 bolted to the top of the base 1, a spring 3 welded to the top of the platform 2, a lower mold 4 welded to the top of the spring 3, a support column 5 welded to the top of the base 1, a top plate 6 welded to the top of the support column 5, a driving component 21 on the surface of the top plate 6, a hydraulic rod 10 at the bottom of the driving component 21, a connecting block 11 bolted to the bottom of the hydraulic rod 10, an electric telescopic rod 16 bolted to the inner cavity of the connecting block 11, a connecting plate 17 bolted to the bottom of the electric telescopic rod 16, a pushing column 18 welded to the bottom of the connecting plate 17, an upper mold 12 bolted to the bottom of the connecting block 11, an installation groove 13 at the bottom of the upper mold 12, a pressure head 14 bolted to the bottom of the upper mold 12, and an electromagnet 15 bolted to the top of the pressure head 14.

[0022] Please see Figure 1 and Figure 4 The drive assembly 21 includes a drive motor 7. The top of the top plate 6 is connected to the drive motor 7 by bolts. The drive shaft of the drive motor 7 is connected to a rotating plate 8 by bolts. Mounting seats 9 are welded to both sides of the bottom of the rotating plate 8. By setting the mounting seats 9, the hydraulic rod 10 can be installed easily and the hydraulic rod 10 can work normally. The hydraulic rod 10 is connected to the inner cavity of the mounting seat 9 by bolts.

[0023] Please see Figure 1 and Figure 2 A positioning frame is welded to the top of the base 2, and a sliding frame is welded to the bottom of the lower mold 4. By setting the positioning frame and the sliding frame, the lower mold 4 can be easily guided and kept stable. The surface of the sliding frame is slidably connected to the positioning frame.

[0024] Please see Figure 1 and Figure 3 Guide rods are welded to the four corners of the top of the lower mold 4, and sliding holes are opened at the bottom of the upper mold 12. By setting guide rods and sliding holes, the upper mold 12 can be easily guided and can be moved stably. The surface of the guide rod is slidably connected to the sliding hole.

[0025] Please see Figure 1 A fixing block 19 is bolted to the right side of the base platform 1, and a conveyor belt 20 is bolted to the right side of the fixing block 19. By setting the fixing block 19 and the conveyor belt 20, it is easy to transport the falling workpiece and make it easy for the staff to pick it up.

[0026] Please see Figure 1 and Figure 3 The surface of the mounting groove 13 is provided with a movable hole. By providing the movable hole, the connecting plate 17 can be moved easily. The surface of the connecting plate 17 is slidably connected to the movable hole.

[0027] Please see Figure 1 The four corners of the bottom of the base platform 1 are all bolted with first support legs, and the bottom of the conveyor belt 20 is bolted with second support legs. By setting the first support legs and the second support legs, the base platform 1 and the conveyor belt 20 can be easily supported, and the base platform 1 and the conveyor belt 20 can be kept stable.

[0028] In use, the device is controlled by an external controller. The material to be die-cast is placed on top of the lower mold 4. The hydraulic rod 10 moves up and down, causing the connecting block 11, upper mold 12, and pressure head 14 to move up and down. The pressure head 14 die-casts the material inside the lower mold 4. During the die-casting process, the lower mold 4 drives the spring 3 to move up and down, and the spring 3 acts as a buffer to prevent the device from being damaged. After die-casting is completed, the electromagnet 15 magnetically attracts the workpiece inside the lower mold 4, causing the top of the workpiece to attach to the bottom of the pressure head 14. Then, the hydraulic rod 10 moves up and down, causing the connecting block 11, upper mold 12, pressure head 14, electromagnet 15, and workpiece to move up and down. The workpiece moves up and down, lifting it from the lower mold 4. Then, the drive motor 7 drives the rotating plate 8, mounting base 9, and hydraulic rod 10 to rotate. The hydraulic rod 10 drives the connecting block 11, upper mold 12, pressure head 14, and workpiece to rotate, rotating the workpiece to the top of the conveyor belt 20. When the electromagnet 15 is de-energized, its magnetism disappears. When the workpiece at the bottom of the pressure head 14 cannot fall automatically, the electric telescopic rod 16 moves up and down, driving the connecting plate 17 and push column 18 to move up and down. The push column 18 pushes the workpiece at the bottom of the pressure head 14 down. At the same time, the pressure head 14, which has rotated to the top of the lower mold 4, can be die-cast again, facilitating continuous processing.

[0029] In summary, this die-casting mold with an automatic demolding mechanism, through the connecting plate 17, pushing column 18, fixing block 19, conveyor belt 20 and driving component 21, solves the problem that during the use of this device, after the mold is pushed out, the operator usually needs to manually pick it up. When picking it up, the operator has to put their hands between the molds, which can easily affect the operator's personal safety and is inconvenient for the operator to use.

Claims

1. A die-casting mould with automatic demoulding mechanism, comprising a base (1), characterised in that: The top of the base (1) is bolted with a pedestal (2), the top of the pedestal (2) is welded with a spring (3), the top of the spring (3) is welded with a lower mold (4), the top of the base (1) is welded with a support column (5), the top of the support column (5) is welded with a top plate (6), the surface of the top plate (6) is provided with a driving assembly (21), the bottom of the driving assembly (21) is provided with a hydraulic rod (10), the bottom of the hydraulic rod (10) is bolted with a connecting block (11), the inner cavity of the connecting block (11) is bolted with an electric telescopic rod (16), the bottom of the electric telescopic rod (16) is bolted with a connecting plate (17), the bottom of the connecting plate (17) is welded with a pushing column (18), the bottom of the connecting block (11) is bolted with an upper mold (12), the bottom of the upper mold (12) is provided with a mounting groove (13), the bottom of the upper mold (12) is bolted with a pressure head (14), the top of the pressure head (14) is bolted with an electromagnet (15).

2. A die-casting mould with automatic ejection according to claim 1, characterized in that: The driving assembly (21) comprises a driving motor (7), the top of the top plate (6) is bolted with the driving motor (7), the transmission shaft of the driving motor (7) is bolted with a rotating plate (8), the bottom of the rotating plate (8) is welded with a mounting seat (9) on both sides, and the inner cavity of the mounting seat (9) is bolted with a hydraulic rod (10).

3. A die-casting die with an automatic demolding mechanism according to claim 1, characterized in that: The top of the pedestal (2) is welded with a positioning frame, the bottom of the lower mold (4) is welded with a sliding frame, and the surface of the sliding frame is in sliding connection with the positioning frame.

4. A die-casting die with an automatic demolding mechanism according to claim 1, characterized in that: The bottom of the upper mold (12) is provided with a sliding hole, and the surface of the guide rod is in sliding connection with the sliding hole.

5. A die-casting die with an automatic demolding mechanism according to claim 1, characterized in that: The right side of the base (1) is bolted with a fixed block (19), and the right side of the fixed block (19) is bolted with a conveyor belt (20).

6. A die-casting die with an automatic demolding mechanism according to claim 1, characterized in that: The surface of the mounting groove (13) is provided with a movable hole, and the surface of the connecting plate (17) is in sliding connection with the movable hole.

7. A die-casting die with an automatic demolding mechanism according to claim 5, characterized in that: The bottom of the base (1) is bolted with a first supporting leg at four corners, and the bottom of the conveyor belt (20) is bolted with a second supporting leg.

Citation Information

Patent Citations

  • Demolding mechanism of die-casting die

    CN220093011U