Automatic material returning stamping die for aluminum bottom plate

By designing an automatic unloading stamping die and utilizing lower die seat displacement and vacuum adsorption technology, the automatic unloading and collection of aluminum base plates was achieved, solving the problems of low efficiency and poor safety in existing technologies and improving stamping efficiency and safety.

CN224372630UActive Publication Date: 2026-06-19DONGGUAN RUIZHI XINGCHEN IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN RUIZHI XINGCHEN IND CO LTD
Filing Date
2025-07-21
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing aluminum base plate stamping dies are inefficient, labor-intensive, and pose safety hazards during material removal.

Method used

An automatic ejection stamping die for aluminum base plates was designed. It adopts a displaceable lower die base and adsorption micro-holes, combined with a vacuum pump and hydraulic cylinder to realize automated ejection and collection. The aluminum base plates after forming are adsorbed by the adsorption micro-holes, and the upper die base is driven by the hydraulic cylinder to move the workpiece to the receiving tray.

Benefits of technology

It improves stamping efficiency, reduces labor intensity, enhances operational safety, and enables automated material unloading and collection, reducing manual intervention.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224372630U_ABST
    Figure CN224372630U_ABST
Patent Text Reader

Abstract

This utility model relates to an automatic ejection stamping die for aluminum base plates, belonging to the field of stamping die technology. It includes a frame, with L-shaped support plates fixedly installed on both sides of the frame's interior. A lower die base is slidably installed between the support plates, the length of which is greater than the length of the lower die base. A stamping cylinder is fixedly installed on one side of the upper end of the frame, and an upper die base is fixedly installed on the telescopic end of the cylinder. The lower surface of the upper die base has uniformly distributed adsorption micro-holes. A vacuum pump is fixedly installed on one side of the upper end of the frame, connected to the adsorption micro-holes. By using a movable lower die base, after stamping, the upper die base adsorbs the workpiece through the adsorption micro-holes, the lower die base moves, and then the upper die base carries the workpiece to the receiving tray for ejection. This facilitates the automatic collection of the stamped workpiece into the receiving tray, improving work efficiency and eliminating the need for manual ejection, thus enhancing safety during use.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to an automatic ejection stamping die for aluminum base plates. Background Technology

[0002] Stamping dies are equipment used in cold stamping processes to process materials into parts. Stamping is a process where pressure is applied to material at room temperature using a die mounted on a press, causing separation or plastic deformation to obtain the desired part. When aluminum base plates are used, the plasticity of aluminum is utilized to stamp parts, which are widely used in modern parts manufacturing. After stamping, the stamped part needs to be removed from the die, completing the unstamping operation. Currently, unstamping is mostly done manually, which is inefficient, labor-intensive, prone to accidents, dangerous, and inconvenient. Utility Model Content

[0003] To overcome the technical defects of the existing technology, this utility model provides an automatic ejection stamping die for aluminum base plates, which automatically ejects and collects the stamped parts after stamping, thereby improving the efficiency and safety of stamping and operation.

[0004] The technical solution adopted by this utility model is: an automatic ejection stamping die for aluminum base plates, including a frame. L-shaped support plates are fixedly installed on both sides of the middle position of the frame. A lower die base is slidably installed between the support plates. The length of the support plates is greater than the length of the lower die base. A stamping cylinder is fixedly installed on one side of the upper end of the frame. An upper die base is fixedly installed on the telescopic end of the stamping cylinder. Adsorption micropores are evenly distributed on the lower surface of the upper die base. A vacuum pump is fixedly installed on one side of the upper end of the frame, and the vacuum pump is connected to the adsorption micropores. In use, the position of the lower die base is first adjusted so that it moves on the support plate. The lower die base moves to directly below the upper die base. The aluminum base plate to be stamped is placed on the lower die base, and the stamping cylinder is activated. The upper die base descends, and the aluminum base plate is stamped through the upper and lower die bases. During unloading, the vacuum pump is activated, and the formed aluminum base plate is adsorbed through the adsorption micropores. The upper die base carries the aluminum base plate upward through the stamping cylinder, and then the lower die base is displaced on the support plate, causing the upper and lower die bases to misalign. Then, the upper die base descends through the stamping cylinder, moving to the bottom of the support plate, and the vacuum pump is turned off, causing the formed aluminum base plate to detach from the upper die base, completing the automatic unloading effect. After unloading, the stamping cylinder drives the upper die base to rise, and then the lower die base is reset. The above operation is repeated, which facilitates rapid stamping of the aluminum base plate and improves stamping efficiency.

[0005] Preferably, an electric slide rail is fixedly installed on the side of the support plate, and the lower mold base is fixedly installed on the movable ends of the electric slide rail on both sides. Both sides of the lower end of the lower mold base have protruding structures. Through the electric slide rail, it is easy to drive the lower mold base to move on the support plate, so that the lower mold base and the upper mold base can be misaligned during material removal.

[0006] Preferably, a slide rail is provided at the lower interior of the frame, and a receiving tray is slidably engaged inside the slide rail. During material unloading, the formed aluminum base plate falls onto the receiving tray, and by pulling the receiving tray, the receiving tray moves on the slide rail, making it easy to remove the collected aluminum base plate.

[0007] Preferably, a connecting pipe is fixedly installed at the middle position of the upper end of the upper mold base, where it connects to the telescopic end of the stamping cylinder. The upper mold base has an internal ventilation channel, and one end of the connecting pipe is connected to the adsorption micropores through the ventilation channel. Through the connecting pipe, when the vacuum pump is pumping air, a negative pressure is formed at the adsorption micropores, which adsorb the formed aluminum base plate through the adsorption micropores, preventing the formed aluminum base plate from moving with the lower mold base.

[0008] Preferably, a steel wire hose is fixedly installed at the other end of the connecting pipe. The other end of the steel wire hose extends to the upper end of the frame and is connected to the vacuum pump. The steel wire hose facilitates the connection between the adsorption micropores and the vacuum pump, forming gas flow. The flexible steel wire hose also avoids affecting the lifting and lowering of the upper mold base.

[0009] Preferably, lifting springs are fixedly installed in an array at the middle of the lower mold base, and top plates are fixedly installed between the lifting springs. After stamping, the spring force of the lifting springs causes the top plates to rise, thereby lifting the formed aluminum base plate off the lower mold base. This prevents the upper mold base from failing to hold the aluminum base plate off the lower mold base, thus improving the stability of the adhesion.

[0010] Preferably, a T-shaped groove is provided in the middle of the lower mold base. The lower end of the lifting spring is fixedly installed inside the groove. The top plate matches the upper end of the groove. During stamping, the top plate is pressed into the groove by the pressure of the aluminum base plate through the groove, filling the upper end of the groove and avoiding affecting the forming effect of the aluminum base plate.

[0011] Preferably, the distance between the support plates is greater than the width of the upper mold base, thereby preventing the support plates from obstructing the upper mold base.

[0012] The beneficial effects of this utility model are: by adopting a displaceable lower die base, after stamping, the upper die base adsorbs the workpiece through the adsorption micro-holes, the lower die base moves, and then the upper die base carries the workpiece to the receiving tray position for unloading, which facilitates the automatic collection of stamped workpieces into the receiving tray, improves work efficiency, and eliminates the need for manual unloading, thus improving safety during use. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention in the stamping state;

[0014] Figure 2 This is a schematic diagram of the structure of the present invention under the condition of loading and unloading material;

[0015] Figure 3 This is a schematic diagram of the structure of this utility model from another angle in the stamping state;

[0016] Figure 4 This is a structural diagram showing the position of the frame in this utility model;

[0017] Figure 5 This is a structural diagram of the upper mold base position in this utility model;

[0018] Figure 6 This is a schematic diagram of the structure of the lower mold base after an explosion in this utility model.

[0019] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Bearing plate; 3. Lower mold base; 4. Stamping cylinder; 5. Upper mold base; 6. Adsorption micro-hole; 7. Vacuum pump; 8. Electric slide rail; 9. Slide track; 10. Receiving tray; 11. Connecting pipe; 12. Steel wire hose; 13. Lifting spring; 14. Top plate; 15. Groove. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] like Figures 1-6 As shown, this embodiment provides an automatic ejection stamping die for aluminum base plates, including a frame 1. L-shaped support plates 2 are fixedly installed on both sides of the middle position of the frame 1. A lower die base 3 is slidably installed between the support plates 2. The length of the support plates 2 is greater than the length of the lower die base 3. A stamping cylinder 4 is fixedly installed on one side of the upper end of the frame 1. An upper die base 5 is fixedly installed at the telescopic end of the stamping cylinder 4. The distance between the support plates 2 is greater than the width of the upper die base 5, thus avoiding obstruction of the upper die base 5 by the support plates 2 and facilitating ejection. Adsorption micro-holes 6 are evenly distributed on the lower surface of the upper die base 5. A vacuum pump 7 is fixedly installed on one side of the upper end of the frame 1, and the vacuum pump 7 is connected to the adsorption micro-holes 6. In use, the position of the lower die base 3 is first adjusted so that the lower die base 3 moves on the support plates 2 until it is directly below the upper die base 5. The aluminum base plate to be stamped is then placed on the lower die base 3. The process begins with the stamping cylinder 4 being activated, causing the upper die holder 5 to descend. The upper die holder 5 and lower die holder 3 then stamp the aluminum base plate. During unloading, the vacuum pump 7 is activated, adsorbing the formed aluminum base plate through the micro-adsorption holes 6. The stamping cylinder 4 then causes the upper die holder 5 to rise, carrying the aluminum base plate. The lower die holder 3 is then displaced on the support plate 2, causing misalignment between the upper and lower die holders. The stamping cylinder 4 then causes the upper die holder 5 to descend, moving it below the support plate 2. The vacuum pump 7 is then deactivated, separating the formed aluminum base plate from the upper die holder 5, achieving automatic unloading. After unloading, the stamping cylinder 4 drives the upper die holder 5 to rise, and the lower die holder 3 is reset. This process is repeated, facilitating rapid stamping of the aluminum base plate, improving stamping efficiency, and enhancing safety during unloading. Manual unloading is eliminated, simplifying operation.

[0022] As a technical optimization solution of this utility model, specifically as follows: Figure 2As shown, an electric slide rail 8 is fixedly installed on the side of the support plate 2, and the lower mold base 3 is fixedly installed on the movable ends of the electric slide rail 8 on both sides. The lower ends of the lower mold base 3 are both protruding structures. Through the electric slide rail 8, it is easy to drive the lower mold base 3 to move on the support plate 2, so that the lower mold base 3 and the upper mold base 5 can be misaligned during material unloading, which is convenient for operation. A slide rail 9 is opened at the lower end of the frame 1. The receiving tray 10 is slidably engaged inside the slide rail 9. During material unloading, the formed aluminum base plate falls on the receiving tray 10, and by pulling the receiving tray 10, the receiving tray 10 moves on the slide rail 9, which is convenient for removing the collected aluminum base plate, which is convenient for operation.

[0023] As a technical optimization solution of this utility model, specifically as follows: Figure 5 As shown, a connecting pipe 11 is fixedly installed at the middle position of the upper end of the upper mold base 5, where it connects to the telescopic end of the stamping cylinder 4. An air passage is provided inside the upper mold base 5. One end of the connecting pipe 11 is connected to the adsorption micropore 6 through the air passage. The connecting pipe 11 facilitates the formation of a negative pressure at the adsorption micropore 6 when the vacuum pump 7 is pumping air. This allows the formed aluminum base plate to be adsorbed through the adsorption micropore 6, preventing the formed aluminum base plate from moving with the lower mold base 3 and facilitating material removal. A steel wire hose 12 is fixedly installed at the other end of the connecting pipe 11. The other end of the steel wire hose 12 extends to the upper end of the frame 1 and is connected to the vacuum pump 7. The steel wire hose 12 facilitates the connection between the adsorption micropore 6 and the vacuum pump 7, forming gas flow. Furthermore, the flexible steel wire hose 12 prevents interference with the lifting and lowering of the upper mold base 5, making it convenient to use.

[0024] As a technical optimization solution of this utility model, specifically as follows: Figure 6 As shown, lifting springs 13 are fixedly installed in an array in the middle of the lower die base 3, and top plates 14 are fixedly installed between the lifting springs 13. After stamping, the lifting springs 13 use their elasticity to lift the top plates 14, causing the formed aluminum base plate to be lifted off the lower die base 3, improving stability during material removal and preventing the upper die base 5 from failing to hold the aluminum base plate off the lower die base 3, thus improving the stability of the adhesion. A T-shaped groove 15 is provided in the middle of the lower die base 3. The lower end of the lifting springs 13 is fixedly installed inside the groove 15, and the top plate 14 matches the upper end of the groove 15. During stamping, the top plate 14 is pressed into the groove 15 by the pressure of the aluminum base plate through the groove 15, filling the upper end of the groove 15. The lifting springs 13 are in a compressed state, avoiding affecting the forming effect of the aluminum base plate.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this invention. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications may be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.

Claims

1. An automatic material-returning press die for an aluminum backsheet, comprising a frame (1), characterized in that: The frame (1) has L-shaped bearing plates (2) fixedly installed on both sides of the middle position. A lower mold base (3) is slidably installed between the bearing plates (2). The length of the bearing plate (2) is greater than the length of the lower mold base (3). A stamping cylinder (4) is fixedly installed on one side of the upper end of the frame (1). An upper mold base (5) is fixedly installed on the telescopic end of the stamping cylinder (4). Adsorption micropores (6) are evenly opened on the lower surface of the upper mold base (5). A vacuum pump (7) is fixedly installed on one side of the upper end of the frame (1). The vacuum pump (7) is connected to the adsorption micropores (6).

2. The automatic material-return press die for an aluminum backsheet according to claim 1, characterized by: The side of the bearing plate (2) is fixedly installed with an electric slide rail (8), and the two sides of the lower mold base (3) are fixedly installed on the movable ends of the electric slide rail (8) on both sides, and the lower ends of the lower mold base (3) are both protruding structures.

3. The automatic ejection stamping die for aluminum base plates according to claim 1, characterized in that: The lower part of the frame (1) is provided with a slide (9), and a receiving tray (10) is slidably engaged inside the slide (9).

4. The automatic ejection stamping die for aluminum base plates according to claim 1, characterized in that: A connecting pipe (11) is fixedly installed at the middle position of the upper end of the upper mold base (5) and the position where it connects to the telescopic end of the stamping cylinder (4). An air passage is provided inside the upper mold base (5), and one end of the connecting pipe (11) is connected to the adsorption micropore (6) through the air passage.

5. The automatic ejection stamping die for aluminum base plates according to claim 4, characterized in that: A steel wire hose (12) is fixedly installed at the other end of the connecting pipe (11), and the other end of the steel wire hose (12) extends to the upper end of the frame (1) and is connected to the vacuum pump (7).

6. The automatic ejection stamping die for aluminum base plates according to claim 1, characterized in that: The lower mold base (3) has an array of lifting springs (13) fixedly installed in the middle position inside, and a top plate (14) is fixedly installed between the lifting springs (13).

7. The automatic ejection stamping die for aluminum base plates according to claim 6, characterized in that: The lower mold base (3) has a T-shaped groove (15) in the middle of its interior. The lower end of the lifting spring (13) is fixedly installed inside the groove (15). The top plate (14) matches the upper end of the groove (15).

8. The automatic ejection stamping die for aluminum base plates according to claim 1, characterized in that: The distance between the bearing plates (2) is greater than the width of the upper mold base (5).