A straightening machine fixed-length mechanism with fine adjustment function

By introducing a multi-stage adjustment mechanism into the length-fixing mechanism of the straightening machine, the problem of insufficient accuracy in the length-fixing backing of the existing straightening machine is solved, and high-precision control of workpiece length and improved adjustment efficiency are achieved.

CN224487503UActive Publication Date: 2026-07-14NINGBO FENGMING MASCH TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO FENGMING MASCH TECH CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing straightening machine lacks a precise adjustment mechanism for its fixed length support, resulting in insufficient workpiece length control accuracy and making it difficult to meet the requirements of high-precision processing.

Method used

A length-fixing mechanism for a straightening machine with fine-tuning function was designed, including a first-level, second-level, and third-level adjustment mechanism. By using a combination of ball screws, adjusting screws, and adjusting rods, rapid and fine-tuning can be achieved, improving adjustment efficiency and accuracy.

Benefits of technology

It achieves high-precision control of workpiece length, improves adjustment efficiency and accuracy, and meets the requirements of high-precision machining.

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Abstract

The utility model discloses a straightening machine fixed length mechanism with fine adjustment function, including the abutment lever, the abutment lever is slidably arranged with first mounting seat and second mounting seat, and first mounting seat is fixedly connected with second mounting seat, and the top rod is arranged on second mounting seat, and the first mounting seat is provided with a primary adjusting mechanism between the abutment lever, to adjust the moving distance of first mounting seat relative to abutment lever, the second mounting seat is provided with a secondary adjusting mechanism between first mounting seat, to adjust the moving distance of second mounting seat relative to first mounting seat, and the first mounting seat is provided with a tertiary adjusting mechanism, to adjust the moving distance of second mounting seat relative to first mounting seat. The utility model discloses a primary adjusting mechanism realizes quick adjustment, improves the adjustment efficiency, and realizes fine adjustment through secondary adjusting mechanism and tertiary adjusting mechanism, improves the adjustment accuracy. Overall, the utility model has the advantages of simple structure, high work efficiency and high precision.
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Description

Technical Field

[0001] This utility model relates to the field of straightening machine equipment technology, and in particular to a straightening machine length-fixing mechanism with fine-tuning function. Background Technology

[0002] A wire straightening machine (also known as a wire straightening and cutting machine or a wire straightening and cutting machine) is a common piece of equipment in the metal wire processing industry. Its main function is to straighten and cut coiled iron or steel wire into straight workpieces that meet production requirements, thereby satisfying the dimensional accuracy demands of subsequent processing and improving operational efficiency. The core structure of this equipment includes a wire feeding mechanism, a straightening mechanism, and a cutting mechanism. The cutting mechanism typically features a length-fixing device (also known as a length-fixing support) at the output end, which ensures that the cut workpieces maintain a uniform length by limiting the movement.

[0003] For example, a length-fixed support for a cutting and straightening machine disclosed in Chinese Utility Model Patent (Authorization Announcement No.: CN212884211U) includes a support rod, a support seat slidably disposed on the support rod, and a top rod; the support seat is locked to the support rod by a first screw. During processing, when it is necessary to adjust the length of the processed workpiece, the first screw can be loosened first, then the support seat slid, and finally the first screw tightened, thereby changing the horizontal distance between the top rod and the discharge port, thus adjusting the length of the processed workpiece and achieving the purpose of length-fixed cutting.

[0004] However, the fixed-length support of the cutting and straightening machine disclosed in the above-mentioned prior art has a simple structural design and lacks a precision adjustment mechanism, which leads to insufficient workpiece length control accuracy in actual production and makes it difficult to meet the needs of high-precision processing scenarios.

[0005] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of this invention is to solve the problem that the adjustment mechanism of the fixed length support of the straightening machine in the prior art is simple in design and lacks a precise adjustment mechanism, which leads to insufficient workpiece length control accuracy in actual production and makes it difficult to meet the needs of high-precision processing scenarios. Therefore, this invention proposes a fixed length mechanism for a straightening machine with fine adjustment function.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A length-fixing mechanism for a straightening machine with fine-tuning function includes a support rod, on which a first mounting seat and a second mounting seat are slidably disposed. The first mounting seat and the second mounting seat are fixedly connected. A top rod is disposed on the second mounting seat. A primary adjustment mechanism is disposed between the first mounting seat and the support rod to adjust the movement distance of the first mounting seat relative to the support rod. A secondary adjustment mechanism is disposed between the first mounting seat and the second mounting seat to adjust the movement distance of the second mounting seat relative to the first mounting seat.

[0009] Furthermore, the first mounting base is provided with a three-stage adjustment mechanism to adjust the moving distance of the second mounting base relative to the first mounting base.

[0010] Furthermore, the two ends of the support rod are fixedly connected to connecting seats, and the primary adjustment mechanism includes a ball screw. The ball screw passes through the connecting seat and the first mounting seat in sequence. The ball screw is rotatably connected to the connecting seat and threadedly connected to the first mounting seat.

[0011] Furthermore, a linear bearing is provided between the ball screw and the first mounting base, through which the rotational motion of the ball screw is converted into the linear motion of the first mounting base.

[0012] Furthermore, the secondary adjustment mechanism includes an adjustment screw, which passes sequentially through a first mounting base and a second mounting base. The adjustment screw is rotatably connected to the first mounting base and threadedly connected to the second mounting base.

[0013] Furthermore, the adjusting screw is provided with a first adjusting gear to prevent rotation, and the three-stage adjusting mechanism includes an adjusting rod that passes through the first mounting base and is rotatably connected to the first mounting base. The adjusting rod is provided with a second adjusting gear that meshes with the first adjusting gear to prevent rotation.

[0014] Furthermore, a first handwheel is fixedly provided at the end of the ball screw, a second handwheel is fixedly provided at the end of the adjusting screw, and a third handwheel is fixedly provided at the end of the adjusting rod.

[0015] Furthermore, the first adjusting gear has more teeth than the second adjusting gear.

[0016] Furthermore, the pitch of the ball screw is greater than the pitch of the adjusting screw.

[0017] The beneficial effects of this utility model after adopting the above structure are as follows: The straightening machine length-fixing mechanism with fine-tuning function described in this utility model includes a support rod, on which a first mounting seat and a second mounting seat are slidably disposed. The first mounting seat and the second mounting seat are fixedly connected. A primary adjustment mechanism is provided between the first mounting seat and the support rod. A secondary adjustment mechanism is provided between the first mounting seat and the second mounting seat. A tertiary adjustment mechanism is provided on the first mounting seat. This utility model achieves rapid adjustment through the primary adjustment mechanism, improving adjustment efficiency; and achieves fine adjustment through the secondary and tertiary adjustment mechanisms, improving adjustment accuracy. Overall, this utility model has the advantages of simple structure, high working efficiency, and high precision. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 This is the utility model Figure 2 An enlarged schematic diagram of the structure at point A.

[0022] Figures 1 to 3 The winning number is:

[0023] 1. Backing rod; 11. Connecting seat; 2. First mounting seat; 21. Linear bearing; 22. Ball bearing; 3. Second mounting seat; 4. Top rod; 5. First-stage adjustment mechanism; 51. Ball screw; 511. Stop block; 52. First handwheel; 6. Second-stage adjustment mechanism; 61. Adjusting screw; 62. First adjusting gear; 63. Second handwheel; 7. Third-stage adjustment mechanism; 71. Adjusting rod; 72. Second adjusting gear; 73. Third handwheel. Detailed Implementation

[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0025] In the description of this utility model, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this utility model, unless otherwise explicitly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0029] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0030] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] like Figures 1 to 3 As shown, a straightening machine length-fixing mechanism with fine-tuning function includes a support rod 1. A first mounting seat 2 and a second mounting seat 3 are slidably mounted on the support rod 1. The first mounting seat 2 and the second mounting seat 3 are fixedly connected. A top rod 4 is provided on the second mounting seat 3. A primary adjustment mechanism 5 is provided between the first mounting seat 2 and the support rod 1 to adjust the movement distance of the first mounting seat 2 relative to the support rod 1. A secondary adjustment mechanism 6 is provided between the first mounting seat 2 and the second mounting seat 3 to adjust the movement distance of the second mounting seat 3 relative to the first mounting seat 2. A tertiary adjustment mechanism 7 is provided on the first mounting seat 2 to adjust the movement distance of the second mounting seat 3 relative to the first mounting seat 2.

[0032] Based on the above embodiments, the present invention aims to provide a straightening machine length-fixing mechanism with fine-tuning function, including a support rod 1. A first mounting seat 2 and a second mounting seat 3 are slidably mounted on the support rod 1. The first mounting seat 2 and the second mounting seat 3 are fixedly connected. A primary adjustment mechanism 5 is provided between the first mounting seat 2 and the support rod 1. A secondary adjustment mechanism 6 is provided between the first mounting seat 2 and the second mounting seat 3. A tertiary adjustment mechanism 7 is provided on the first mounting seat 2. The present invention achieves rapid adjustment through the primary adjustment mechanism 5, improving adjustment efficiency; and achieves fine adjustment through the secondary adjustment mechanism 6 and the tertiary adjustment mechanism 7, improving adjustment accuracy. Overall, the present invention has the advantages of simple structure, high working efficiency, and high precision.

[0033] In this embodiment, the number of teeth on the first adjusting gear 62 is greater than the number of teeth on the second adjusting gear 72, meaning the adjustment accuracy of the three-stage adjusting mechanism 7 is higher than that of the two-stage adjusting mechanism 6; the pitch of the ball screw 51 is greater than the pitch of the adjusting screw 61, meaning the adjustment accuracy of the two-stage adjusting mechanism 6 is higher than that of the first-stage adjusting mechanism 5. Specifically, the ratio of the number of teeth on the first adjusting gear 62 to the number of teeth on the second adjusting gear 72 is 2:1. The ratio of the pitch of the ball screw 51 to the pitch of the adjusting screw 61 is 10:3. In a further embodiment, for every revolution of the ball screw 51, the first mounting base 2 and the second mounting base 3 move synchronously by 5mm; for every revolution of the adjusting screw 61, the second mounting base 3 moves by 1.5mm; and for every revolution of the adjusting rod 71, the second mounting base 3 moves by 0.75mm.

[0034] In another preferred embodiment of this utility model, the two ends of the support rod 1 are fixedly connected to connecting seats 11. The primary adjustment mechanism 5 includes a ball screw 51, which passes through the connecting seat 11 and the first mounting seat 2 in sequence. The ball screw 51 is rotatably connected to the connecting seat 11 and threadedly connected to the first mounting seat 2. A linear bearing 21 is provided between the ball screw 51 and the first mounting seat 2, and the rotational motion of the ball screw 51 is converted into the linear motion of the first mounting seat 2 through the linear bearing 21. In this embodiment, as... Figure 2As shown, when it is necessary to adjust the position of the first mounting base 2 relative to the support rod 1, the ball screw 51 is rotated by the first handwheel 52. A linear bearing 21 is provided between the ball screw 51 and the first mounting base 2. The linear bearing 21 converts the rotational motion of the ball screw 51 into the linear motion of the first mounting base 2, causing the first mounting base 2 to move forward or backward relative to the support rod 1. The second mounting base 3 is fixedly connected to the first mounting base 2 by an adjusting screw 61. When the first mounting base 2 moves forward or backward relative to the support rod 1, the second mounting base 3 and the top rod 4 mounted on the second mounting base 3 move forward or backward synchronously, thus realizing the rapid adjustment of the top rod 4 and improving the adjustment efficiency. In a further preferred embodiment, a stop block 511 is fixedly provided at the end of the ball screw 51 that passes through the first mounting base 2 to prevent the ball screw 51 from unscrewing off the first mounting base 2.

[0035] In another preferred embodiment of this utility model, the secondary adjustment mechanism 6 includes an adjustment screw 61, which passes sequentially through the first mounting base 2 and the second mounting base 3. The adjustment screw 61 is rotatably connected to the first mounting base 2 and threadedly connected to the second mounting base 3. A first adjustment gear 62 is provided on the adjustment screw 61 to prevent rotation. The tertiary adjustment mechanism 7 includes an adjustment rod 71, which passes through the first mounting base 2 and is rotatably connected to it. A second adjustment gear 72, which meshes with the first adjustment gear 62, is provided on the adjustment rod 71 to prevent rotation. A ball bearing 22 is provided between the adjustment screw 61 and the first mounting base 2, and a ball bearing 22 is also provided between the adjustment rod 71 and the first mounting block. In this embodiment, as... Figure 2 As shown, after the top rod 4 is quickly adjusted via the primary adjustment mechanism 5, the top rod 4 is finely adjusted via the secondary adjustment mechanism 6 and the tertiary adjustment mechanism 7. Specifically, the adjusting screw 61 is rotated by the second handwheel 63 or the third handwheel 73, causing the second mounting base 3, which is screwed to it, and the top rod 4 mounted on the second mounting base 3 to move forward or backward synchronously. By setting the number of teeth of the first adjusting gear 62 and the second adjusting gear 72 to different ratios, the secondary adjustment mechanism 6 and the tertiary adjustment mechanism 7 can achieve adjustments of different precisions. In this embodiment, the ball bearing 22 makes the rotation of the adjusting screw 61 and the adjusting rod 71 smoother and more stable.

[0036] As another preferred embodiment of this utility model, a first handwheel 52 is fixedly provided at the end of the ball screw 51, a second handwheel 63 is fixedly provided at the end of the adjusting screw 61, and a third handwheel 73 is fixedly provided at the end of the adjusting rod 71. In this embodiment, as... Figure 1As shown, the rotation of the ball screw 51 is adjusted by the first handwheel 52, the rotation of the adjusting screw 61 is adjusted by the second handwheel 63, and the rotation of the second adjusting gear 72 is adjusted by the third handwheel 73, thereby adjusting the rotation of the adjusting screw 61, making the adjustment more effortless.

[0037] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A straightening machine length-fixing mechanism with fine-tuning function, comprising a support rod (1), characterized in that: The support rod (1) is slidably provided with a first mounting seat (2) and a second mounting seat (3). The first mounting seat (2) and the second mounting seat (3) are fixedly connected. The second mounting seat (3) is provided with a top rod (4). A first-level adjustment mechanism (5) is provided between the first mounting seat (2) and the support rod (1) to adjust the moving distance of the first mounting seat (2) relative to the support rod (1). A second-level adjustment mechanism (6) is provided between the first mounting seat (2) and the second mounting seat (3) to adjust the moving distance of the second mounting seat (3) relative to the first mounting seat (2).

2. The straightening machine length-fixing mechanism with fine-tuning function according to claim 1, characterized in that: The first mounting base (2) is provided with a three-stage adjustment mechanism (7) to adjust the moving distance of the second mounting base (3) relative to the first mounting base (2).

3. The straightening machine length-fixing mechanism with fine-tuning function according to claim 2, characterized in that: The two ends of the support rod (1) are fixedly connected to the connecting seat (11). The first-level adjustment mechanism (5) includes a ball screw (51). The ball screw (51) passes through the connecting seat (11) and the first mounting seat (2) in sequence. The ball screw (51) is rotatably connected to the connecting seat (11) and threadedly connected to the first mounting seat (2).

4. The straightening machine length-fixing mechanism with fine-tuning function according to claim 3, characterized in that: A linear bearing (21) is provided between the ball screw (51) and the first mounting seat (2), and the rotational motion of the ball screw (51) is converted into the linear motion of the first mounting seat (2) through the linear bearing (21).

5. The straightening machine length-fixing mechanism with fine-tuning function according to claim 3, characterized in that: The secondary adjustment mechanism (6) includes an adjustment screw (61), which passes through the first mounting seat (2) and the second mounting seat (3) in sequence. The adjustment screw (61) is rotatably connected to the first mounting seat (2) and threadedly connected to the second mounting seat (3).

6. The straightening machine length-fixing mechanism with fine-tuning function according to claim 5, characterized in that: The adjusting screw (61) is provided with a first adjusting gear (62) to prevent rotation. The three-stage adjusting mechanism (7) includes an adjusting rod (71). The adjusting rod (71) passes through the first mounting base (2) and is rotatably connected to the first mounting base (2). The adjusting rod (71) is provided with a second adjusting gear (72) to prevent rotation and mesh with the first adjusting gear (62).

7. A straightening machine length-fixing mechanism with fine-tuning function according to claim 6, characterized in that: The end of the ball screw (51) is fixedly provided with a first handwheel (52), the end of the adjusting screw (61) is fixedly provided with a second handwheel (63), and the end of the adjusting rod (71) is fixedly provided with a third handwheel (73).

8. A straightening machine length-fixing mechanism with fine-tuning function according to claim 6, characterized in that: The first adjusting gear (62) has more teeth than the second adjusting gear (72).

9. A straightening machine length-fixing mechanism with fine-tuning function according to claim 5, characterized in that: The pitch of the ball screw (51) is greater than the pitch of the adjusting screw (61).

Citation Information

Patent Citations

  • Fixed-length backer of cut-off straightening machine

    CN212884211U