High-strength replaceable die steel forming device

By using a double-ended lead screw and motor-driven connection method, combined with a detachable fixing rod and positioning groove design, the problem of difficult core replacement is solved, enabling quick disassembly and replacement of the core, and improving steel processing efficiency and forming accuracy.

CN224389752UActive Publication Date: 2026-06-23DONGGUAN XINSHUANGMAO MOLD STEEL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN XINSHUANGMAO MOLD STEEL CO LTD
Filing Date
2025-02-18
Publication Date
2026-06-23

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    Figure CN224389752U_ABST
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Abstract

The utility model relates to steel material forming technical field, concretely to a kind of high-strength replaceable die steel material forming device, including base, the top of base is equipped with two symmetrical strip grooves, double-end screw rod is rotatably installed between two strip grooves;The upper side of base is equipped with stamping part;The lower side of fixed frame is equipped with core for bending steel material, core top is fixed with fixed block, fixed block passes through connecting frame, fixed hole is opened in fixed block, fixed rod passes through fixed hole;The core of setting can extrude plastic moulding to steel material;Core is connected with connecting frame by fixed block, fixed rod is positioned to fixed block by passing through fixed hole, the design guarantees the installation stability of core, when disassembling core, fixed rod is pushed away from fixed hole, the quick disassembly of core can be realized, the design is convenient for the quick disassembly of core, to facilitate user to replace different size core according to production demand, improve the production efficiency of steel material.
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Description

Technical Field

[0001] This utility model relates to the field of steel forming technology, specifically to a high-strength, replaceable-mold steel forming device. Background Technology

[0002] Mold steel is a type of steel used to manufacture molds such as cold stamping dies, hot forging dies, and die casting molds. It is usually divided into cold work mold steel, hot work mold steel, and mold steel for plastic molding. In the processing of mold steel, molds are an important auxiliary equipment for forming steel, including common injection molds and stamping dies.

[0003] A stamping die is a special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). It is also called a cold stamping mold or cold stamping die. Currently, stamping dies are required for the processing of some steel materials (such as U-shaped steel). The stamping die mainly applies force to the steel to change its physical state. The core is one of the main structures of the stamping die. During the stamping process, the core applies force to the steel to shape it. However, in the existing system, the core is connected to the output shaft of the press by bolts. Although this connection method ensures the reliability of the core installation, it requires the use of tools such as wrenches to disassemble and replace the core. This design increases the difficulty and time of core replacement and reduces the efficiency of core replacement. In view of this, we propose a high-strength, replaceable die steel forming device. Utility Model Content

[0004] The purpose of this invention is to provide a high-strength, replaceable-mold steel forming device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-strength, replaceable mold steel forming device includes a base. The top of the base has two symmetrical notches, and a double-ended lead screw is rotatably installed between the two notches. A motor for driving the double-ended lead screw to rotate is installed at the front end of the base. Both ends of the double-ended lead screw are threadedly connected to connecting blocks. A support is fixed on the top of the connecting blocks. A strip groove is opened on the top of the support. A threaded rod is rotatably installed in the strip groove. A protrusion is threadedly connected to the threaded rod. A positioning rod is fixed on the top of the protrusion.

[0007] The base has a stamping section above it, which includes a bracket fixed to the base. An electric cylinder is fixed to the top of the bracket, and a connecting frame is fixed to the end of the piston rod of the electric cylinder. Fixed frames are fixed to both sides of the top of the connecting frame. A slider is slidably installed in the opening of the fixed frame. A fixed rod is coaxially fixed to the slider. A spring for pressing against the slider is sleeved on the outside of the fixed rod. The end of the fixed rod passes through the fixed frame and is slidably connected to the fixed frame. A core for bending steel is provided below the fixed frame. A fixed block is fixed to the top of the core. The fixed block passes through the connecting frame and has a fixed hole. The fixed rod passes through the fixed hole.

[0008] As a preferred technical solution of this utility model, positioning grooves are provided at both ends of the core, and positioning blocks are fixed at both sides of the bottom opening of the connecting frame, and the positioning holes are inserted into the positioning grooves.

[0009] As a preferred technical solution of this utility model, the cross-sectional shape of the fixing frame is U-shaped, and the fixing frame and the connecting frame are fixedly connected by bolts.

[0010] As a preferred technical solution of this utility model, the cross-sectional shape of the connecting frame is U-shaped, and the opening size of the connecting frame is adapted to the opening size of the core.

[0011] As a preferred technical solution of this utility model, an adjusting head is coaxially fixed at the end of the threaded rod, and the cross-sectional shape of the adjusting head is a regular hexagon.

[0012] As a preferred technical solution of this utility model, the end of the double-ended lead screw is rotatably connected to the inner wall of the notch through a bearing, and the two ends of the double-ended lead screw have opposite thread directions.

[0013] As a preferred technical solution of this utility model, the cross-sectional shape of the protrusion is rectangular, and the size of the protrusion is adapted to the size of the strip groove.

[0014] As a preferred technical solution of this utility model, an end cap is coaxially fixed at one end of the fixing rod away from the fixing hole, and the end cap is cylindrical.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The stamping section features a core that can extrude and shape steel. Simultaneously, the core is connected to the connecting frame via a fixing block, and a fixing rod passes through a fixing hole to limit the fixing block's position. This design ensures the core's installation stability. When disassembling the core, pushing the fixing rod away from the fixing hole allows for quick disassembly. This design facilitates rapid core removal, allowing users to easily replace cores of different sizes according to production needs, thus improving steel production efficiency.

[0017] 2. The horizontal position of the supports on both sides is adjusted by rotating the double-ended lead screw. By adjusting the position of the supports, it is convenient to shape steel of different sizes between the two supports. The adjustable positioning rods make it easy to place the steel stably between the two positioning rods for stamping, thus ensuring the stability and accuracy of the processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the base structure in this utility model;

[0020] Figure 3 This is a partial structural diagram of the stamping part in this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fixing frame in this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the medium-sized core of this utility model.

[0023] In the picture:

[0024] 1. Base; 10. Support leg; 11. Notch; 12. Double-ended lead screw; 13. Connecting block; 14. Support; 140. Strip groove; 15. Threaded rod; 16. Adjusting head; 17. Protrusion; 18. Positioning rod; 19. Motor;

[0025] 2. Stamping section; 20. Bracket; 21. Electric cylinder; 22. Connecting frame; 23. Fixing frame; 24. Slider; 25. Fixing rod; 250. End cap; 26. Spring; 27. Core; 270. Positioning groove; 28. Fixing block; 280. Fixing hole. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0027] This embodiment provides a technical solution:

[0028] Please see Figures 1-5A high-strength, moldable steel forming device includes a base 1. The top of the base 1 has two symmetrical notches 11. A double-ended lead screw 12 is rotatably mounted between the two notches 11. A motor 19 for driving the double-ended lead screw 12 is mounted at the front end of the base 1. Connecting blocks 13 are threaded to both ends of the double-ended lead screw 12. A support 14 is fixed to the top of the connecting blocks 13. A slot 140 is formed on the top of the support 14. A threaded rod 15 is rotatably mounted within the slot 140. A protrusion 17 is threaded to the threaded rod 15. A positioning rod 18 is fixed to the top of the protrusion 17. A stamping section 2 is provided above the base 1. The stamping section 2 includes a bracket fixed to the base 1. 20. An electric cylinder 21 is fixed to the top of the bracket 20. A connecting frame 22 is fixed to the end of the piston rod of the electric cylinder 21. Fixing frames 23 are fixed to both sides of the top of the connecting frame 22. A slider 24 is slidably installed in the opening of the fixing frame 23. A fixing rod 25 is coaxially fixed to the slider 24. A spring 26 for pressing against the slider 24 is sleeved on the outside of the fixing rod 25. The end of the fixing rod 25 passes through the fixing frame 23 and is slidably connected to the fixing frame 23. A core 27 for bending steel is provided below the fixing frame 23. A fixing block 28 is fixed to the top of the core 27. The fixing block 28 passes through the connecting frame 22. A fixing hole 280 is opened on the fixing block 28. The fixing rod 25 passes through the fixing hole 280.

[0029] In this embodiment, positioning grooves 270 are provided at both ends of the core 27, and positioning blocks are fixed on both sides of the bottom opening of the connecting frame 22, with the positioning holes and positioning grooves 270 engaging. The design of the positioning holes and positioning grooves 270 achieves precise positioning and stable connection between the core 27 and the connecting frame 22.

[0030] In this embodiment, the fixing frame 23 has a U-shaped cross-section, and the fixing frame 23 is fixedly connected to the connecting frame 22 by bolts. This structure ensures the strength of the connection while facilitating disassembly and maintenance. The U-shaped design also provides good support, enhancing the overall stability of the device.

[0031] In this embodiment, the connecting frame 22 has a U-shaped cross-section, and the opening size of the connecting frame 22 is adapted to the opening size of the core 27. This design facilitates the stable installation of the core 27 within the opening of the connecting frame 22.

[0032] In this embodiment, an adjusting head 16 is coaxially fixed to the end of the threaded rod 15. The adjusting head 16 has a regular hexagonal cross-sectional shape. This design facilitates rotational adjustment using tools such as wrenches, thereby achieving precise adjustment of the threaded rod 15.

[0033] In this embodiment, the end of the double-ended lead screw 12 is rotatably connected to the inner wall of the notch 11 via a bearing, and the two ends of the double-ended lead screw 12 have opposite thread directions. When the double-ended lead screw 12 rotates, the protrusions 17 at both ends can move in opposite directions simultaneously, thereby adjusting the horizontal position of the support 14.

[0034] In this embodiment, the protrusion 17 has a rectangular cross-sectional shape, and its size is adapted to the size of the strip groove 140. This design ensures smooth sliding and precise positioning of the protrusion 17 within the strip groove 140, improving the stability of the positioning rod 18.

[0035] In this embodiment, an end cap 250 is coaxially fixed at the end of the fixing rod 25 away from the fixing hole 280. The end cap 250 is cylindrical. The end cap 250 facilitates the user's pulling of the fixing rod 25, improving the ease of operation.

[0036] It should be added that, in this embodiment, the base 1 has four support legs 10 installed at the bottom corners. The support legs 10 are cylindrical and are fixedly connected to the base 1 by bolts. The multiple cylindrical support legs 10 provide stable support for the base 1, and thus provide stable support for the whole device.

[0037] It is understood that the core 27 in this embodiment is made of alloy steel. Alloy steel has the advantages of corrosion resistance and high strength. This design not only ensures the plasticity of the core 27 on the steel, but also ensures the service life of the core 27.

[0038] It is worth noting that the motor 19 and electric cylinder 21 involved in this embodiment are existing conventional technologies, and will not be described in detail here.

[0039] In practical use, the user first turns on the power to the motor 19, and the motor 19 starts to work. The output shaft of the motor 19 rotates, driving the double-headed lead screw 12 to rotate. At this time, the connecting blocks 13 on both sides move synchronously relative to each other and drive the support 14 to move. When the two supports 14 move to a suitable distance, the user stops the power to the motor 19. Then the user places the steel to be processed above the two supports 14 and rotates the adjusting heads 16 on both sides. The adjusting heads 16 drive the threaded rod 15 to rotate, and the protrusion 17 slides along the strip groove 140. The protrusion 17 simultaneously drives the positioning rod 18 to move horizontally. When the positioning rod 18 presses against both sides of the steel, the steel is fixed. Then the user turns on the power to the electric cylinder 21, and the electric cylinder 21 starts to work. The piston rod of the electric cylinder 21 extends and moves the connecting frame 22 and the core 27 downward. The core 27 contacts the steel and squeezes the steel from the gap between the two supports 14, and the steel is shaped.

[0040] When the core 27 needs to be disassembled, the user first pulls the end cap 250 to both sides. The end cap 250 drives the fixing rod 25 and the slider 24 to move to both sides. The spring 26 is compressed by the slider 24, and the end of the fixing rod 25 disengages from the fixing hole 280. The restriction of the fixing rod 25 on the fixing block 28 is released. Finally, the user pulls the core 27 down, and the fixing block 28 disengages from the connecting frame 22. The core 27 is then disassembled.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength, replaceable-mold steel forming device, characterized in that: The base (1) has two symmetrical notches (11) on its top. A double-ended lead screw (12) is rotatably installed between the two notches (11). A motor (19) for driving the double-ended lead screw (12) is installed at the front end of the base (1). Both ends of the double-ended lead screw (12) are threaded with connecting blocks (13). A support (14) is fixed on the top of the connecting block (13). A strip groove (140) is opened on the top of the support (14). A threaded rod (15) is rotatably installed in the strip groove (140). A protrusion (17) is threaded on the threaded rod (15). A positioning rod (18) is fixed on the top of the protrusion (17). A stamping part (2) is provided above the base (1). The stamping part (2) includes a bracket (20) fixed to the base (1). An electric cylinder (21) is fixed on the top of the bracket (20). A connecting frame (22) is fixed at the end of the piston rod of the electric cylinder (21). A fixing frame (23) is fixed on both sides of the top of the connecting frame (22). A slider (24) is slidably installed in the opening of the fixing frame (23). A fixing rod (25) is coaxially fixed at the slider (24). A spring (26) for pressing against the slider (24) is sleeved on the outside of the fixing rod (25). The end of the fixing rod (25) passes through the fixing frame (23) and is slidably connected to the fixing frame (23). A core (27) for bending steel is provided below the fixing frame (23). A fixing block (28) is fixed on the top of the core (27). The fixing block (28) passes through the connecting frame (22). A fixing hole (280) is opened on the fixing block (28). The fixing rod (25) passes through the fixing hole (280).

2. The high-strength replaceable mold steel forming device according to claim 1, characterized in that: The core (27) has positioning grooves (270) at both ends, and positioning blocks are fixed on both sides of the bottom opening of the connecting frame (22), and the positioning holes are inserted into the positioning grooves (270).

3. The high-strength replaceable mold steel forming device according to claim 1, characterized in that: The cross-sectional shape of the fixed frame (23) is U-shaped, and the fixed frame (23) and the connecting frame (22) are fixedly connected by bolts.

4. The high-strength replaceable mold steel forming device according to claim 1, characterized in that: The cross-sectional shape of the connecting frame (22) is U-shaped, and the opening size of the connecting frame (22) is adapted to the opening size of the core (27).

5. The high-strength replaceable mold steel forming device according to claim 1, characterized in that: An adjusting head (16) is coaxially fixed at the end of the threaded rod (15), and the cross-sectional shape of the adjusting head (16) is a regular hexagon.

6. The high-strength replaceable mold steel forming device according to claim 1, characterized in that: The end of the double-ended lead screw (12) is rotatably connected to the inner wall of the notch (11) through a bearing, and the two ends of the double-ended lead screw (12) have opposite thread directions.

7. The high-strength replaceable mold steel forming device according to claim 1, characterized in that: The cross-sectional shape of the protrusion (17) is rectangular, and the size of the protrusion (17) is adapted to the size of the strip groove (140).

8. The high-strength replaceable mold steel forming device according to claim 1, characterized in that: The end cap (250) is coaxially fixed at one end of the fixing rod (25) away from the fixing hole (280), and the end cap (250) is cylindrical.