Nut forming die

By using a detachable inner mold and die head design, combined with an electric push rod and a motor-driven tapping device, the problem of replacing the entire existing nut forming die is solved, reducing usage costs and improving production efficiency.

CN223888837UActive Publication Date: 2026-02-10HENAN TIANHANG FASTENER MFG CO LTD
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Patent Information

Application Number
CN202520353092.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-10
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

The existing nut forming mold needs to be completely replaced, resulting in high operating costs and low production efficiency.

Method used

The design incorporates a detachable inner mold and die head structure, combined with an electric push rod and a motor-driven tapping device, enabling rapid replacement of the inner mold and die head, as well as tapping operations.

Benefits of technology

This reduces the cost of using molds and improves the efficiency of nut production, avoiding the need to replace the entire equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of dies, and discloses a nut forming die which comprises a fixed die part and a movable die part moving up and down relative to the fixed die part, the fixed die part comprises a base, the top of the base is open to form a positioning groove, a plurality of limiting grooves are formed in the top of the base, the positioning groove is located between every two limiting grooves, and the movable die part is located between the two limiting grooves. A positioning groove is formed in the base, a detachable inner mold is arranged in the positioning groove, a limiting plate is fixedly connected to the circumferential surface of the inner mold, the limiting plate is matched with the limiting groove, the top of the inner mold is open to form a forming cavity, the movable mold part comprises a first movable plate, and the first movable plate is located above the base; by arranging the inner mold and the base which are detachably connected, when the inner mold is excessively abraded and needs to be replaced, a worker can take out the inner mold to replace only by pulling the inner mold to separate the inner mold from the base, so that the mold does not need to be integrally replaced, and the use cost of the device is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a nut forming mold. Background Technology

[0002] Nut forming dies are key tools used in nut production. Through specific design and manufacturing processes, they can precisely form nut products that meet requirements. Nut forming dies typically consist of two parts: an upper die and an lower die. While existing nut forming dies can produce nuts, they have certain drawbacks. For example, Chinese patent publication number "CN 220497521 U" discloses a forming die for processing nuts. This die includes a base plate and a forming die body, with the forming die body fixedly mounted on the top of the base plate. The top of the forming die body has a hexagonal groove, and the forming die body is equipped with an ejection mechanism. Because the forming part of this die is a one-piece structure, and the die wears down over time, it needs to be replaced periodically. Since this die requires complete replacement, the operating cost is high. Furthermore, when producing nuts with this die, the nuts need to be removed and transferred to another station for tapping, reducing nut production efficiency. Utility Model Content

[0003] This utility model proposes a nut forming mold to solve the problem that existing molds need to be replaced entirely.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a nut forming mold, comprising a fixed mold part and a movable mold part that moves up and down relative to the fixed mold part. The fixed mold part includes a base, the top of which is open to form a positioning groove, and a plurality of limiting grooves are formed on the top of the base. The positioning groove is located between two limiting grooves, and a detachable inner mold is provided inside the positioning groove. A limiting plate is fixedly connected to the circumferential surface of the inner mold, and the limiting plate matches the limiting groove. The top of the inner mold is open to form a forming cavity.

[0005] Preferably, the moving mold includes a first movable plate, which is located above the base, and the bottom of the first movable plate is recessed to form a connecting hole. A detachable connecting rod is screwed into the connecting hole. A hexagonal plate is fixedly connected to the bottom of the connecting rod, and a mold head is fixedly connected to the bottom of the hexagonal plate. The mold head matches the molding cavity one by one.

[0006] Preferably, a detachable screw is screwed between the limiting groove and the limiting plate.

[0007] Preferably, the nut forming mold further includes a support member, which includes a base frame, and two first electric push rods are symmetrically fixedly connected inside the base frame. The first movable plate is fixedly connected between the telescopic ends of the two first electric push rods.

[0008] Preferably, the inner wall of the base frame is symmetrically rotatably connected to two rotating rods, the base is fixedly connected between the two rotating rods, and the inner wall of the base frame is also equipped with a tapping tool for tapping, the tapping tool being located below the base.

[0009] Preferably, the tapping component includes two second electric push rods, both of which are located below the rotating rod, and a second movable plate is fixedly connected between the telescopic ends of the two second electric push rods. A second motor is fixedly connected to the top of the second movable plate, and a tapping head is connected to the telescopic end of the second motor.

[0010] Preferably, a first motor is fixedly connected to the outside of the base frame, and the output end of the first motor is connected to the rotating rod.

[0011] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0012] (1) By setting a detachable inner mold and base, when the inner mold is worn out and needs to be replaced, simply pull the inner mold to separate it from the base, and personnel can take out the inner mold for replacement, so that the mold does not need to be replaced as a whole, thus reducing the cost of using the device.

[0013] (2) By setting up a mold head, a connecting rod and a first moving plate, the mold head and the hexagonal plate are fixed under the first moving plate by screwing the connecting rod into the connecting hole on the first connecting plate. When the personnel need to replace the mold head, they only need to reverse the mold head to separate the connecting rod from the connecting hole, and the mold head can be replaced without replacing the whole thing, which further reduces the cost of using the device.

[0014] (3) This utility model sets up a first motor, a rotating rod and a tapping head. The first motor drives the rotating rod to rotate, which in turn drives the base to rotate, so that the inner mold opening faces downward. The second electric push rod drives the second moving plate to move, and the second moving plate drives the second motor and the tapping head to approach the nut. The second motor drives the tapping head to rotate, so that the tapping head taps the nut. When the mold produces nuts, it is not necessary to remove the nuts and transfer them to other stations for tapping, thus improving the nut production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is one of the perspective views of this utility model;

[0017] Figure 2 This is a second perspective view of the present invention;

[0018] Figure 3 This is a perspective view of the present invention with the moving and fixed mold parts removed;

[0019] Figure 4 This is a perspective view of the moving module of this utility model;

[0020] Figure 5 This is one of the perspective views of the fixed mold component of this utility model;

[0021] Figure 6 This is the second perspective view of the fixed mold part of this utility model;

[0022] In the diagram: 1. Support component; 11. Base frame; 12. First motor; 13. Rotating rod; 14. First electric push rod; 2. Fixed mold component; 21. Base; 22. Positioning groove; 23. Limiting groove; 24. Inner mold; 25. Molding cavity; 26. Limiting plate; 27. Screw; 3. Moving mold component; 31. First moving plate; 32. Hexagonal plate; 33. Mold head; 34. Connecting rod; 35. Connecting hole; 4. Tapping component; 41. Second electric push rod; 42. Second moving plate; 43. Second motor; 44. Tapping head. Detailed Implementation

[0023] 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.

[0024] This utility model provides, for example Figures 1-6 The nut forming mold shown includes a fixed mold part 2 and a movable mold part 3 that moves up and down relative to the fixed mold part 2. The fixed mold part 2 includes a base 21, the top of the base 21 is open to form a positioning groove 22, and a plurality of limiting grooves 23 are formed on the top of the base 21. The positioning groove 22 is located between two limiting grooves 23, and a detachable inner mold 24 is provided inside the positioning groove 22. A limiting plate 26 is fixedly connected to the periphery of the inner mold 24. The limiting plate 26 matches the limiting groove 23. The top of the inner mold 24 is open to form a forming cavity 25.

[0025] With the above technical solution, before the personnel need to process the nut, the inner mold 24 is placed in the positioning groove 22, and the limiting plate 26 on the inner mold 24 is engaged with the limiting groove 23. After the inner mold 24 is installed, the blank is placed in the forming cavity 25 inside the inner mold 24. By moving the moving mold part 3, the blank in the forming cavity 25 is pressed to form the nut. After the nut is formed, the moving mold part 3 moves away from the inner mold 24. When the personnel need to replace the inner mold 24, they pull the inner mold 24 to separate the limiting plate 26 from the limiting groove 23, so that the inner mold 24 can be separated from the positioning groove 22. The personnel can then replace the inner mold 24 without replacing all the equipment.

[0026] Specifically, in one embodiment, regarding the aforementioned moving module 3, as... Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the moving mold 3 includes a first moving plate 31, which is located above the base 21. The bottom of the first moving plate 31 is recessed to form a connecting hole 35. A detachable connecting rod 34 is screwed into the connecting hole 35. A hexagonal plate 32 is fixedly connected to the bottom of the connecting rod 34. A mold head 33 is fixedly connected to the bottom of the hexagonal plate 32. The mold head 33 matches the molding cavity 25 one by one.

[0027] In this embodiment, after the blank is added into the molding cavity 25, the first moving plate 31 moves, causing the first moving plate 31 to drive the die head 33 to move, thereby allowing the die head 33 to press the blank in the molding cavity 25, thus forming a nut. When the personnel need to replace the die head 33, they rotate the die head 33, thereby driving the hexagonal plate 32 and the connecting rod 34 to rotate, so that the die head 33 is separated from the first moving plate 31, and the die head 33 can be replaced.

[0028] After the inner mold 24 is installed, in order to make the inner mold 24 more stable, such as Figure 4 As shown, a detachable screw 27 is screwed between the limiting groove 23 and the limiting plate 26. When the inner mold 24 is placed in the positioning groove 22, the screw 27 is screwed to the limiting plate 26 and the base 21, so that the inner mold 24 is more securely fixed.

[0029] To support the first movable plate 31, the mold also includes a support member 1. The support member 1 includes a base frame 11, and two first electric push rods 14 are symmetrically fixedly connected inside the base frame 11. The first movable plate 31 is fixedly connected between the telescopic ends of the two first electric push rods 14. The base frame 11 supports the first electric push rods 14, and the first electric push rods 14 support the first movable plate 31. When it is necessary to drive the first movable plate 31, the first electric push rods 14 drive the first movable plate 31 to move, so that the first movable plate 31 drives the die head 33 to move, thereby stamping the blank.

[0030] Furthermore, in this utility model, in order to tap the nut, such as Figures 1-3 As shown, two rotating rods 13 are symmetrically rotatably connected to the inner wall of the base frame 11, and the base 21 is fixedly connected between the two rotating rods 13. A tapping part 4 for tapping is also installed on the inner wall of the base frame 11, and the tapping part 4 is located below the base 21.

[0031] In this embodiment, after the nut is processed, the rotating rod 13 rotates, which in turn drives the base 21 to rotate, so that the opening of the positioning groove 22 faces downward, thereby bringing the nut close to the tapping part 4, and the nut is processed by the tapping part 4.

[0032] Specifically, in one embodiment, regarding the aforementioned tapping component 4, as... Figures 1-3 As shown, the tapping part 4 includes two second electric push rods 41, both of which are located below the rotating rod 13. A second moving plate 42 is fixedly connected between the telescopic ends of the two second electric push rods 41. A second motor 43 is fixedly connected to the top of the second moving plate 42. A tapping head 44 is connected to the telescopic end of the second motor 43.

[0033] In this embodiment, when the opening of the positioning groove 22 faces rearward, the second moving plate 42 is moved by the second electric push rod 41, which in turn moves the second motor 43, bringing the tapping head 44 close to the nut. The second motor 43 then rotates, allowing the tapping head 44 to tap the nut.

[0034] Furthermore, regarding how the rotating rod 13 rotates in this utility model, as follows: Figure 3 As shown, a first motor 12 is fixedly connected to the outside of the base frame 11, and the output end of the first motor 12 is connected to the rotating rod 13.

[0035] In this embodiment, when it is necessary to drive the rotating rod 13 to rotate, the first motor 12 works, thereby driving the rotating rod 13 to rotate.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nut forming mold, characterized in that: The system includes a fixed mold (2) and a movable mold (3) that moves up and down relative to the fixed mold (2). The fixed mold (2) includes a base (21). The top of the base (21) is open to form a positioning groove (22), and a plurality of limiting grooves (23) are formed on the top of the base (21). The positioning groove (22) is located between two limiting grooves (23), and a detachable inner mold (24) is provided inside the positioning groove (22). A limiting plate (26) is fixedly connected to the circumferential surface of the inner mold (24). The limiting plate (26) matches the limiting groove (23), and the top of the inner mold (24) is open to form a molding cavity (25).

2. The nut forming die according to claim 1, characterized in that: The moving part (3) includes a first moving plate (31), which is located above the base (21). The bottom of the first moving plate (31) is recessed to form a connecting hole (35). A detachable connecting rod (34) is screwed into the connecting hole (35). A hexagonal plate (32) is fixedly connected to the bottom of the connecting rod (34). A mold head (33) is fixedly connected to the bottom of the hexagonal plate (32). The mold head (33) matches the molding cavity (25) one by one.

3. A nut forming die according to claim 1 or 2, characterized in that: A detachable screw (27) is screwed between the limiting groove (23) and the limiting plate (26).

4. The nut forming die according to claim 2, characterized in that: It also includes a support member (1), which includes a base frame (11). Two first electric push rods (14) are symmetrically fixedly connected inside the base frame (11), and the first moving plate (31) is fixedly connected between the telescopic ends of the two first electric push rods (14).

5. A nut forming die according to claim 4, characterized in that: The inner wall of the base frame (11) is symmetrically connected to two rotating rods (13), and the base (21) is fixedly connected between the two rotating rods (13). The inner wall of the base frame (11) is also equipped with a tapping part (4) for tapping, and the tapping part (4) is located below the base (21).

6. A nut forming die according to claim 5, characterized in that: The tapping part (4) includes two second electric push rods (41), both of which are located below the rotating rod (13), and a second moving plate (42) is fixedly connected between the telescopic ends of the two second electric push rods (41). A second motor (43) is fixedly connected to the top of the second moving plate (42), and a tapping head (44) is connected to the telescopic end of the second motor (43).

7. A nut forming die according to claim 5, characterized in that: A first motor (12) is fixedly connected to the outside of the base frame (11), and the output end of the first motor (12) is connected to the rotating rod (13).

Citation Information

Patent Citations

  • Forming die for machining nut

    CN220497521U