Stamping device convenient to demould

By designing a stamping device that facilitates demolding, and utilizing hydraulic rods and a moving plate structure to achieve automatic demolding of parts, the problem of parts sticking to the mold is solved, production efficiency is improved, and manual intervention is reduced.

CN224128466UActive Publication Date: 2026-04-17SHENYANG SANBEI AVIATION EQUIP MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG SANBEI AVIATION EQUIP MFG CO LTD
Filing Date
2025-05-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

After stamping, parts tend to stick to the mold, leading to decreased production efficiency and increased manual intervention.

Method used

A stamping device for easy demolding was designed. The transmission plate and moving plate structure are driven by a hydraulic rod. The resetting component and locking block of the moving plate are used to realize the automatic demolding of the parts and reduce manual intervention.

Benefits of technology

It enables automatic demolding of parts, improves production efficiency, reduces manual intervention, and lowers operating costs and labor intensity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a stamping device convenient to demould, which relates to the technical field of stamping equipment and comprises a base, a vertical plate is arranged on one side of the upper surface of the base, and a top plate is arranged at the top of the vertical plate. The four guide rods are vertically arranged between the top plate and the base; the hydraulic rod is arranged at the bottom of the top plate, the telescopic end of the hydraulic rod is connected with a transmission plate, and a transmission cylinder is arranged at the bottom of the transmission plate; when the second moving plate moves upwards, the top bending part of a part subjected to punch forming can be driven to move upwards, so that the part is separated from the lower die, when the upper pressing die and the four wing plates on the upper pressing die move out of the opening groove, the first moving plate can clamp the part subjected to punch forming, and the part is separated from the upper pressing die and the four wing plates on the upper pressing die. Therefore, the part adhered to the upper pressing die falls off, a person does not need to take out the stamped part from the upper die or the lower die, manual intervention is reduced, and the working efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of stamping equipment technology, specifically a stamping device that facilitates demolding. Background Technology

[0002] As an important forming equipment in modern manufacturing, stamping equipment applies external force to sheet metal through presses and dies, causing it to undergo plastic deformation or separation, thereby obtaining parts of the required shape and size. In many fields such as automobile manufacturing, electronic equipment, and aerospace, stamping equipment has greatly promoted the industrialization process with its high efficiency and precision production advantages.

[0003] However, after the current stamping equipment is finished, the high surface roughness of the mold will increase the friction between the part and the mold, or when there are oil stains or impurities on the mold surface, the part will easily stick to the upper or lower mold. This phenomenon will not only lead to a decrease in production efficiency, but also increase the operating cost and labor intensity due to frequent manual intervention to remove the parts. Therefore, it is necessary to develop a stamping equipment that is easy to demold. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a stamping device that facilitates demolding, thereby solving the problem that when parts adhere to the upper or lower mold, production efficiency decreases and frequent manual intervention to remove parts increases operating costs and labor intensity.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a stamping device that facilitates demolding, comprising:

[0006] A base, wherein a vertical plate is provided on one side of the upper surface of the base, and a top plate is provided on the top of the vertical plate;

[0007] Four guide rods are vertically arranged between the top plate and the base.

[0008] A hydraulic rod is installed at the bottom of the top plate. The telescopic end of the hydraulic rod is connected to a transmission plate. A transmission cylinder is installed at the bottom of the transmission plate. An upper pressure mold is installed at the bottom of the transmission cylinder. Four wing plates are installed on the four side walls of the upper pressure mold near the top.

[0009] A lower pressing mold is disposed on the upper surface of the base and located below the upper pressing mold, and a stepped groove is provided at the top edge of the lower pressing mold;

[0010] The first movable plate and the second movable plate are vertically slidably mounted on four guide rods. The first movable plate is located above the second movable plate. The first movable plate has a cross-shaped opening groove, and the second movable plate has a through groove.

[0011] The first reset component is mounted on four guide rods and is used to reset the first moving plate after it has moved vertically downwards.

[0012] The second reset assembly is mounted on four guide rods and is used to reset the second moving plate after it has moved vertically downwards.

[0013] Preferably, the second reset assembly includes four second limiting rings and four second springs. The four second springs are sleeved on four guide rods, and each second spring is located between the second moving plate and the base. The four second limiting rings are fixedly mounted on the four guide rods, and each second limiting ring is located above the second moving plate.

[0014] Preferably, the first reset assembly includes four first limiting rings and four first springs, each first spring being sleeved on the guide rod and located between the first moving plate and the second limiting ring, and each first limiting ring being disposed on the guide rod and located above the first spring.

[0015] Preferably, the upper surface of the second movable plate is provided with four locking blocks in a cross shape.

[0016] Preferably, the transmission cylinder has a hollow structure.

[0017] Preferably, reinforcing ribs are provided between the base and the upright plate, and between the upright plate and the top plate.

[0018] This utility model provides a stamping device that facilitates demolding, and has the following beneficial effects:

[0019] 1. When the second moving plate of this utility model moves upward, it can drive the top bent part of the stamped part to move upward, thereby causing the part to detach from the lower mold and preventing the part from sticking to the mold cavity of the lower mold. When the upper mold and its four wing plates move out of the opening slot, the first moving plate will hold the stamped part, causing the part sticking to the upper mold to fall off. There is no need for personnel to remove the stamped part from the upper or lower mold, reducing manual intervention and thus improving work efficiency.

[0020] 2. When the sheet material is placed on the second moving plate, the four locking blocks can limit the sheet material to prevent it from shifting when the second moving plate moves; the transmission cylinder is a hollow structure to reduce its weight; reinforcing ribs are provided between the base and the upright plate, and between the upright plate and the top plate, to strengthen the overall structural strength of the frame. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model before the stamping process;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model during the stamping operation;

[0023] Figure 3 This utility model Figure 1 An enlarged schematic diagram of part A in the middle;

[0024] Figure 4 This is a three-dimensional structural diagram of the upper mold and the wing plate in this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of the first movable plate in this utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the second movable plate in this utility model;

[0027] Figure 7 This is a schematic diagram of the lower pressure mold in this utility model;

[0028] Figure 8 This is a schematic diagram of the sheet metal structure before stamping in this utility model.

[0029] In the diagram: 1. Base; 2. Vertical plate; 3. Top plate; 4. Guide rod; 5. Hydraulic rod; 6. Transmission plate; 7. Transmission cylinder; 8. Upper die; 8-1. Wing plate; 9. First limiting ring; 10. Second limiting ring; 11. First spring; 12. Second spring; 13. First moving plate; 13-1. Opening slot; 14. Second moving plate; 14-1. Through slot; 15. Locking block; 16. Lower die; 16-1. Stepped slot; 17. Reinforcing rib; 18. Sheet metal. Detailed Implementation

[0030] 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.

[0031] Please see Figure 1-8 This utility model provides a technical solution: a stamping device that facilitates demolding, comprising:

[0032] A base 1, a vertical plate 2 is provided on one side of the upper surface of the base 1, and a top plate 3 is provided on the top of the vertical plate 2;

[0033] Four guide rods 4 are vertically arranged between the top plate 3 and the base 1;

[0034] Hydraulic rod 5 is located at the bottom of top plate 3. The telescopic end of hydraulic rod 5 is connected to transmission plate 6. Transmission cylinder 7 is located at the bottom of transmission plate 6. Upper pressure mold 8 is located at the bottom of transmission cylinder 7. Four wing plates 8-1 are located on the four side walls of upper pressure mold 8 near the top.

[0035] The lower pressing mold 16 is disposed on the upper surface of the base 1 and located below the upper pressing mold 8. A stepped groove 16-1 is provided at the top edge of the lower pressing mold 16.

[0036] The first movable plate 13 and the second movable plate 14 are both vertically slidably mounted on four guide rods 4. The first movable plate 13 is located above the second movable plate 14. The first movable plate 13 has a cross-shaped opening groove 13-1, and the second movable plate 14 has a through groove 14-1.

[0037] The first reset component is mounted on four guide rods 4 and is used to reset the first moving plate 13 after it has moved vertically downwards.

[0038] The second reset assembly is mounted on four guide rods 4 and is used to reset the second moving plate 14 after it has moved vertically downward.

[0039] In this embodiment, four wing plates 8-1 are provided around the top of the upper die 8. The upper die 8 and the four wing plates 8-1 can pass through the opening slot 13-1 opened on the first moving plate 13. The four wing plates 8-1 can be pressed onto the upper surface of the second moving plate 14. The upper die 8 can be embedded into the mold cavity of the lower die 16 to press the sheet material. When the four wing plates press onto the second moving plate 14, the second moving plate 14 can be moved vertically downward, thereby moving the second moving plate 14 to the stepped groove 16-1 of the lower die 16.

[0040] As an embodiment of the present invention, the second reset assembly includes four second limiting rings 10 and four second springs 12. The four second springs 12 are sleeved on four guide rods 4, and each second spring 12 is located between the second moving plate 14 and the base 1. The four second limiting rings 10 are fixedly disposed on the four guide rods 4, and each second limiting ring 10 is located above the second moving plate 14.

[0041] In this embodiment, when the four wing plates are pressed onto the second movable plate 14, the four second springs 12 can be contracted. When the hydraulic cylinder drives the upper mold 8 and the four wing plates to move upward, the second movable plate 14 moves upward under the elastic force of the four second springs 12 until the second movable plate 14 abuts against the four second limit rings 10.

[0042] As an embodiment of the present invention, the first reset assembly includes four first limiting rings 9 and four first springs 11. Each first spring 11 is sleeved on the guide rod 4 and located between the first moving plate 13 and the second limiting ring 10. Each first limiting ring 9 is disposed on the guide rod 4 and located above the first spring 11.

[0043] In this embodiment, when the hydraulic rod 5 drives the transmission plate 6 to move downward, the transmission plate 6 presses against the first moving plate 13, causing the first moving plate 13 to move downward and causing the four first springs 11 to contract. When the transmission plate 6 moves upward, the first moving plate 13 moves upward under the elastic force of the four first springs 11 until it abuts against the four first limiting rings 9.

[0044] As an embodiment of the present invention, the upper surface of the second movable plate 14 is provided with four locking blocks 15 in a cross shape.

[0045] In this embodiment, when the sheet is placed on the second moving plate 14, the four locking blocks 15 can limit the sheet.

[0046] As an embodiment of this utility model, the transmission cylinder 7 is a hollow structure, which reduces the weight of the transmission cylinder 4.

[0047] As an embodiment of this utility model, reinforcing ribs 17 are respectively provided between the base 1 and the upright plate 2, and between the upright plate 2 and the top plate 3.

[0048] In this embodiment, the reinforcing rib 17 strengthens the overall structural strength of the frame.

[0049] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0050] The working principle and usage process of this utility model are as follows: When in use, the sheet material 18 is first placed between the four locking blocks 15 on the second moving plate 14. The four locking blocks 15 can limit the sheet material 18 and prevent the sheet material 18 from being displaced when the second moving plate 14 moves.

[0051] Secondly, the hydraulic cylinder set at the bottom of the top plate 3 is activated. When the extension end of the hydraulic cylinder extends, it drives the connected transmission plate 6 to move vertically downward. The transmission plate 6 drives the transmission cylinder 7 to move vertically downward. The transmission cylinder 7 drives the upper die 8 and the four wing plates 8-1 on the upper die 8 to move vertically downward. After the upper die 8 and the four wing plates 8-1 on it pass through the opening slot 13-1 opened on the first moving plate 13, the transmission plate 6 presses onto the first moving plate 13, thereby causing the first moving plate 13 to move vertically downward. At the same time, the four first springs 11 are compressed. When the upper die 8 abuts against the sheet 18, the sheet 18 causes the second moving plate 14 to move vertically downward. When the second moving plate 14 moves to the stepped slot 16-1 opened on the lower die, the upper die and the lower die cooperate to stamp the sheet 18, so that the sheet 18 is stamped into a shape with a bent part at the top.

[0052] Secondly, the retraction end of the hydraulic cylinder retracts, causing the transmission plate 6, transmission cylinder 7, and upper die 8 to move upward. Under the elastic force of the four second springs 12, the second moving plate 14 can move upward. The second moving plate 14 can drive the top bent part of the stamped part to move upward, thereby causing the part to detach from the lower die and preventing the part from sticking to the mold cavity of the lower die. Under the elastic force of the four first springs 11, the first moving plate 13 can move upward. When the first moving plate 13 moves to the position of the four first limit rings 9, it stops moving. If the part is stuck to the upper die, when the upper die 8 and the four wing plates 8-1 on it move out of the opening slot 13-1, since the width of the top bent part of the stamped part is shorter than the width of the wing plate 8-1, and the shape of the cross-shaped opening slot 13-1 matches the shape of the four wing plates 8-1, the first moving plate 13 will jam the stamped part, causing the part stuck to the upper die 8 to fall off.

[0053] Finally, the parts can be removed by the staff. There is no need for staff to take the stamped parts out of the upper or lower mold, which reduces manual intervention and improves work efficiency.

[0054] 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 of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A stamping device for easy demolding, characterized in that, include: A base (1) is provided with a vertical plate (2) on one side of the upper surface of the base (1), and a top plate (3) is provided on the top of the vertical plate (2); Four guide rods (4) are vertically arranged between the top plate (3) and the base (1); Hydraulic rod (5), the hydraulic rod (5) is set at the bottom of the top plate (3), the telescopic end of the hydraulic rod (5) is connected to the transmission plate (6), the bottom of the transmission plate (6) is provided with the transmission cylinder (7), the bottom of the transmission cylinder (7) is provided with the upper pressure mold (8), and the upper pressure mold (8) is provided with four wing plates (8-1) on the four sides near the top. The lower pressing mold (16) is disposed on the upper surface of the base (1) and located below the upper pressing mold (8). A stepped groove (16-1) is provided at the top edge of the lower pressing mold (16). The first movable plate (13) and the second movable plate (14) are vertically slidably mounted on four guide rods (4). The first movable plate (13) is located above the second movable plate (14). The first movable plate (13) has a cross-shaped opening groove (13-1), and the second movable plate (14) has a through groove (14-1). The first reset component is mounted on four guide rods (4) for resetting the first moving plate (13) after it has moved vertically downwards. The second reset assembly is mounted on four guide rods (4) and is used to reset the second moving plate (14) after it moves vertically downward.

2. The stamping apparatus of claim 1, wherein, The second reset assembly includes four second limiting rings (10) and four second springs (12). The four second springs (12) are sleeved on four guide rods (4). Each second spring (12) is located between the second moving plate (14) and the base (1). The four second limiting rings (10) are fixedly mounted on the four guide rods (4). Each second limiting ring (10) is located above the second moving plate (14).

3. A stamping apparatus facilitating demolding according to claim 2, wherein The first reset assembly includes four first limiting rings (9) and four first springs (11). Each first spring (11) is sleeved on the guide rod (4) and located between the first moving plate (13) and the second limiting ring (10). Each first limiting ring (9) is disposed on the guide rod (4) and located above the first spring (11).

4. The stamping apparatus of claim 1, wherein, The upper surface of the second movable plate (14) is provided with four locking blocks (15) in a cross shape.

5. A stamping device for easy demolding according to claim 1, characterized in that, The transmission cylinder (7) has a hollow structure.

6. The stamping apparatus of claim 1, wherein, Reinforcing ribs (17) are provided between the base (1) and the upright plate (2), and between the upright plate (2) and the top plate (3).