Nut bolt production cold header
By introducing rectangular blocks, drive motors, and lifting motors into the cold heading machine, the adjustment of the wheel spacing and the protection of the control box are realized. This solves the problem that existing cold heading machines cannot adapt to raw materials of different diameters, improves the applicability and protection, and enhances processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI JIUHE HENGYE FASTENER MFG CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-06-26
AI Technical Summary
The existing cold heading machine has a relatively fixed feed roller structure design, which cannot be flexibly adjusted, making it unable to adapt to raw material wires of different diameters and reducing its applicability.
A structure comprising a rectangular block, a drive motor, a lead screw, a movable plate, and a connecting rod is designed. The rotation of the drive motor drives the lead screw and the movable plate to adjust the distance between the rollers, adapting to the conveying of raw materials of different diameters. At the same time, the combination of the lifting motor, the rotating rod, the round shaft, and the protective box provides enclosed protection for the control box.
It enables flexible adjustment of the wheel spacing, adapts to the conveying of raw materials of different diameters, improves the applicability of the device, enhances the protection of the equipment, avoids damage caused by external misoperation, and improves processing efficiency.
Smart Images
Figure CN224406348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of bolt production equipment, specifically to a cold heading machine for producing nuts and bolts. Background Technology
[0002] A cold heading machine is a processing equipment that utilizes the cold plastic deformation characteristics of metal materials to apply pressure to metal blanks through a mold at room temperature, causing them to undergo plastic deformation and thus forming parts of the required shape. It belongs to the category of metal pressure processing equipment and is mainly used for mass production of standard parts such as bolts, nuts, rivets, and pins, as well as parts with complex shapes.
[0003] In modern industrial production, nuts and bolts are indispensable basic components, and their efficient and precise production is crucial. Cold heading machines have become commonly used equipment for nut and bolt processing due to their advantages such as high production efficiency and stable product quality. However, although existing cold heading machines can meet the needs of continuous production, they have obvious limitations. Their feed wheel structure design is relatively fixed and lacks a flexible adjustment mechanism, making it impossible to adapt to raw material wires of different diameters and specifications, thus reducing their applicability. Therefore, improvements are needed. Utility Model Content
[0004] To overcome the above-mentioned defects, the embodiments of this disclosure provide a cold heading machine for the production of nuts and bolts, which solves the technical problem of inconvenient adjustment of the rollers in the prior art.
[0005] According to one aspect, at least one embodiment of this disclosure provides a cold heading machine for producing nuts and bolts, including a cold heading machine body. A mounting plate is fixedly connected to the right side of the cold heading machine body. A limit hole is formed inside the mounting plate. A movable shaft is movably connected to the inner surface of the limit hole. A wheel is fixedly sleeved on the outer surface of the movable shaft. The bottom of the wheel is movably connected to the top of the mounting plate. A rectangular block is movably sleeved on the bottom of the movable shaft. The top of the rectangular block is movably connected to the bottom of the mounting plate. A drive motor is fixedly connected to the bottom of the mounting plate. A lead screw is fixedly sleeved on the other end of the output shaft of the drive motor. A movable plate is threaded onto the outer surface of the lead screw. A connecting rod is hinged to the front of the movable plate. The other end of the connecting rod is hinged to the bottom of the rectangular block.
[0006] As a preferred embodiment of this utility model, a fixing plate is movably sleeved at the other end of the lead screw, and the top of the fixing plate is fixedly connected to the bottom of the mounting plate.
[0007] As a preferred embodiment of this utility model, a limiting rod is fixedly connected to the bottom of the mounting plate, and the outer surface of the limiting rod is movably sleeved with the inner surface of the movable plate.
[0008] As a preferred embodiment of this utility model, there are two limiting rods, the two limiting rods are the same size, and the two limiting rods are symmetrical about the center of the movable plate.
[0009] As a preferred embodiment of this utility model, a discharge plate is fixedly connected to the left side of the cold heading machine body, and the inner surface of the discharge plate is smooth.
[0010] As a preferred embodiment of this utility model, a control box is fixedly connected to the top of the cold heading machine body, a display screen is fixedly installed inside the control box, and buttons are movably installed on the front of the control box.
[0011] As a preferred technical solution of this utility model, a lifting motor located behind the control box is fixedly connected to the top of the cold heading machine body. A rotating shaft is fixedly sleeved on the other end of the output shaft of the lifting motor. A rotating rod is fixedly sleeved on the outer surface of the rotating shaft, and a round shaft is fixedly sleeved on the other end of the rotating rod.
[0012] As a preferred embodiment of this utility model, a hollow block is movably connected to the outer surface of the circular shaft, and a protective box is fixedly connected to the bottom of the hollow block.
[0013] As a preferred technical solution of this utility model, a limiting block is fixedly connected to the outer side of the protective box, and a vertical rod is movably sleeved on the inner surface of the limiting block. There are two vertical rods, and the bottom of the two vertical rods are fixedly connected to the top of the cold heading machine body.
[0014] As a preferred embodiment of this utility model, a shock-absorbing pad is fixedly connected to the bottom of the cold heading machine body, and the shock-absorbing pad is rectangular in shape.
[0015] The beneficial effects of this utility model are as follows:
[0016] 1. In this disclosure, by setting up rectangular blocks, a drive motor, a lead screw, a movable plate, and connecting rods, when the drive motor is running, the lead screw will rotate, causing the movable plate to move to the right, which in turn causes the two connecting rods to rotate, causing the two rectangular blocks to move in opposite directions, thereby driving the four round wheels to move in opposite directions in pairs, thus achieving the purpose of adjusting the distance between the round wheels, facilitating the conveying of raw materials of different diameters, and improving the applicability of the device.
[0017] 2. In this disclosure, by setting up a lifting motor, a rotating rod, a round shaft, a hollow block and a protective box, when the lifting motor is running, the rotating shaft will drive the rotating rod to rotate, and the round shaft will drive the hollow block to move down in an orderly manner, so that the protective box will close precisely and tightly wrap the control box, effectively preventing the cold heading machine from being damaged by external misoperation when the machine is idle, and significantly improving the protection efficiency. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.
[0019] Figure 1 This is a schematic diagram of the overall structure in one embodiment of the present disclosure;
[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the circular shaft in the embodiment;
[0021] Figure 3 for Figure 1 A schematic diagram of the connecting rod in the embodiment;
[0022] Figure 4 for Figure 1 A cross-sectional view of the wheel in the embodiment;
[0023] Figure 5 for Figure 3 A schematic diagram of the structure of the movable plate in the embodiment;
[0024] Figure 6 for Figure 4 The schematic diagram of the limiting hole in the embodiment is shown.
[0025] In the diagram: 1. Cold heading machine body; 2. Mounting plate; 3. Limiting hole; 4. Movable shaft; 5. Round wheel; 6. Rectangular block; 7. Drive motor; 8. Lead screw; 9. Movable plate; 10. Connecting rod; 11. Fixed plate; 12. Limiting rod; 13. Unloading plate; 14. Control box; 15. Display screen; 16. Button; 17. Lifting motor; 18. Rotating shaft; 19. Rotating rod; 20. Round shaft; 21. Hollow block; 22. Protective box; 23. Limiting block; 24. Vertical rod; 25. Shock-absorbing pad. Detailed Implementation
[0026] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.
[0027] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0028] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0029] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0030] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.
[0031] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] like Figures 1-6As shown, a cold heading machine for producing nuts and bolts according to an embodiment of the present disclosure is illustrated. It includes a cold heading machine body 1, a mounting plate 2 fixedly connected to the right side of the cold heading machine body 1, a limiting hole 3 inside the mounting plate 2, a movable shaft 4 movably connected to the inner surface of the limiting hole 3, a wheel 5 fixedly sleeved on the outer surface of the movable shaft 4, the bottom of the wheel 5 movably connected to the top of the mounting plate 2, a rectangular block 6 movably sleeved on the bottom of the movable shaft 4, the top of the rectangular block 6 movably connected to the bottom of the mounting plate 2, a drive motor 7 fixedly connected to the bottom of the mounting plate 2, a lead screw 8 fixedly sleeved on the other end of the output shaft of the drive motor 7, a movable plate 9 threadedly sleeved on the outer surface of the lead screw 8, a connecting rod 10 hinged to the front of the movable plate 9, and the other end of the connecting rod 10 hinged to the bottom of the rectangular block 6.
[0033] The four wheels 5 move in opposite directions to each other, thus achieving the purpose of adjusting the distance between the wheels 5. Since the lead screw 8 and the movable plate 9 adopt a threaded connection design, the friction between the threads forms a self-locking structure, which ensures the stability of the four wheels 5.
[0034] In some examples, the other end of the lead screw 8 is movably sleeved with a fixing plate 11, the top of which is fixedly connected to the bottom of the mounting plate 2.
[0035] The design of the fixed plate 11 serves to support and stabilize the lead screw 8.
[0036] In some examples, the bottom of the mounting plate 2 is fixedly connected to a limiting rod 12, and the outer surface of the limiting rod 12 is movably sleeved with the inner surface of the movable plate 9.
[0037] The design of the limit rod 12 serves to limit the movement of the movable plate 9, ensuring that the movable plate 9 can move horizontally stably.
[0038] In some examples, there are two limit rods 12, both of the same size, and the two limit rods 12 are symmetrical about the center of the movable plate 9.
[0039] The design of two limit rods 12 provides a better limiting effect on the movable plate 9.
[0040] In some examples, a discharge plate 13 is fixedly connected to the left side of the cold heading machine body 1, and the inner surface of the discharge plate 13 is smooth.
[0041] The smooth inner surface of the unloading plate 13 makes the bolts inside the unloading plate 13 slide more smoothly.
[0042] In some examples, a control box 14 is fixedly connected to the top of the cold heading machine body 1, a display screen 15 is fixedly installed inside the control box 14, and buttons 16 are movably installed on the front of the control box 14.
[0043] The combination of button 16 and display screen 15 enables flexible control of the cold heading machine body 1.
[0044] In some examples, the top of the cold heading machine body 1 is fixedly connected to a lifting motor 17 located behind the control box 14. The other end of the output shaft of the lifting motor 17 is fixedly sleeved with a rotating shaft 18. The outer surface of the rotating shaft 18 is fixedly sleeved with a rotating rod 19. The other end of the rotating rod 19 is fixedly sleeved with a round shaft 20.
[0045] The lifting motor 17 has a built-in high-efficiency self-locking device that can lock the rotating rod 19, preventing the rotating rod 19 from reversing.
[0046] In some examples, a hollow block 21 is movably connected to the outer surface of the circular shaft 20, and a protective box 22 is fixedly connected to the bottom of the hollow block 21.
[0047] The internal dimensions of the protective box 22 are larger than the dimensions of the control box 14. This design allows the protective box 22 to enclose and protect the control box 14.
[0048] In some examples, a limiting block 23 is fixedly connected to the outer side of the protective box 22, and a vertical rod 24 is movably sleeved on the inner surface of the limiting block 23. There are two vertical rods 24, and the bottom of the two vertical rods 24 is fixedly connected to the top of the cold heading machine body 1.
[0049] The design of the limiting block 23 and the vertical rod 24 serves to limit the movement of the protective box 22, ensuring that the protective box 22 can move up and down stably.
[0050] In some examples, a shock-absorbing pad 25 is fixedly connected to the bottom of the cold heading machine body 1. The shock-absorbing pad 25 is rectangular in shape.
[0051] The design of the shock-absorbing pad 25 serves to reduce the vibration of the cold heading machine body 1.
[0052] Working principle and usage process of this utility model:
[0053] When feeding raw materials of different diameters, starting the drive motor 7 will cause the lead screw 8 to rotate, driving the movable plate 9 to move to the right. This, in turn, causes the two connecting rods 10 to rotate, driving the two rectangular blocks 6 to move in opposite directions. This, in turn, drives the four round wheels 5 to move in opposite directions in pairs, thus achieving the purpose of adjusting the distance between the round wheels 5. This facilitates the conveying of raw materials of different diameters and improves the applicability of the device.
[0054] When the cold heading machine body 1 is idle, starting the lifting motor 17 will cause the rotating shaft 18 to rotate, which in turn causes the round shaft 20 to rotate, driving the hollow block 21 to move downward. This causes the protective box 22 to move downward, sealing and protecting the control box 14. This prevents external personnel from using the control box 14 and causing damage to the cold heading machine body 1, which would affect the efficiency of nut and bolt processing and improve the protective performance of the device.
[0055] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.
Claims
1. A cold heading machine for producing nuts and bolts, comprising a cold heading machine body (1), characterized in that: A mounting plate (2) is fixedly connected to the right side of the cold heading machine body (1). A limiting hole (3) is opened inside the mounting plate (2). A movable shaft (4) is movably connected to the inner surface of the limiting hole (3). A round wheel (5) is fixedly sleeved on the outer surface of the movable shaft (4). The bottom of the round wheel (5) is movably connected to the top of the mounting plate (2). A rectangular block (6) is movably sleeved on the bottom of the movable shaft (4). The top of the rectangular block (6) is movably connected to the bottom of the mounting plate (2). A drive motor (7) is fixedly connected to the bottom of the mounting plate (2). A lead screw (8) is fixedly sleeved on the other end of the output shaft of the drive motor (7). A movable plate (9) is threaded on the outer surface of the lead screw (8). A connecting rod (10) is hinged to the front of the movable plate (9). The other end of the connecting rod (10) is hinged to the bottom of the rectangular block (6).
2. The cold heading machine for producing nuts and bolts according to claim 1, characterized in that: The other end of the lead screw (8) is movably sleeved with a fixing plate (11), and the top of the fixing plate (11) is fixedly connected to the bottom of the mounting plate (2).
3. A cold heading machine for producing nuts and bolts according to claim 1, characterized in that: The bottom of the mounting plate (2) is fixedly connected to a limiting rod (12), and the outer surface of the limiting rod (12) is movably sleeved with the inner surface of the movable plate (9).
4. A cold heading machine for producing nuts and bolts according to claim 3, characterized in that: There are two limiting rods (12), the two limiting rods (12) are the same size, and the two limiting rods (12) are symmetrical about the center of the movable plate (9).
5. A cold heading machine for producing nuts and bolts according to claim 1, characterized in that: A discharge plate (13) is fixedly connected to the left side of the cold heading machine body (1), and the inner surface of the discharge plate (13) is smooth.
6. A cold heading machine for producing nuts and bolts according to claim 1, characterized in that: A control box (14) is fixedly connected to the top of the cold heading machine body (1). A display screen (15) is fixedly installed inside the control box (14). Buttons (16) are movably installed on the front of the control box (14).
7. A cold heading machine for producing nuts and bolts according to claim 1, characterized in that: The top of the cold heading machine body (1) is fixedly connected to a lifting motor (17) located behind the control box (14). The other end of the output shaft of the lifting motor (17) is fixedly sleeved with a rotating shaft (18). The outer surface of the rotating shaft (18) is fixedly sleeved with a rotating rod (19). The other end of the rotating rod (19) is fixedly sleeved with a round shaft (20).
8. A cold heading machine for producing nuts and bolts according to claim 7, characterized in that: A hollow block (21) is movably connected to the outer surface of the circular shaft (20), and a protective box (22) is fixedly connected to the bottom of the hollow block (21).
9. A cold heading machine for producing nuts and bolts according to claim 8, characterized in that: The protective box (22) is fixedly connected to a limiting block (23) on the outside. A vertical rod (24) is movably sleeved on the inner surface of the limiting block (23). There are two vertical rods (24), and the bottom of the two vertical rods (24) is fixedly connected to the top of the cold heading machine body (1).
10. A cold heading machine for producing nuts and bolts according to claim 1, characterized in that: The bottom of the cold heading machine body (1) is fixedly connected to a shock-absorbing pad (25), which is rectangular in shape.