A machine for straightening grass rope nails

Abstract

The utility model discloses a kind of straw rope nail straightening machine, including rack and the straightening mechanism of fixed installation in the top of rack, the discharge end of the straightening mechanism is equipped with fixed column, and fixed column is fixedly installed in the top of rack, the outer surface one side of fixed column is equipped with the guide sleeve that is penetrated to the other side, and guide sleeve is fixedly connected with fixed column, one end of the guide sleeve is fixedly connected with bearing seat, and electric rotating assembly is commonly installed between bearing seat and guide sleeve;The movable end of the electric rotating assembly is uniformly fixedly connected with four spring seats.In the utility model, by setting four even distribution fixed detection units that can electrically rotate, high-speed linear detection and rotating scanning double-mode collaborative work are realized, both guarantee 100% online rapid screening under production rhythm, and abnormal section can be stopped and reviewed, greatly improve overall detection efficiency and coverage, avoid the limitation of single detection mode.

Description

Technical Field

[0001] This utility model relates to the field of straightening machine technology, and in particular to a straw rope nail straightening machine. Background Technology

[0002] A straightening machine is a device used to straighten metal materials (such as steel bars, steel pipes, and steel rails). Its core function is to restore or achieve the desired straight shape of the material through mechanical means (such as hydraulic pressure or mechanical pressure). It has a wide range of applications, including construction engineering, manufacturing, and rail transportation.

[0003] Currently, during the production process of straw rope nails, a straightening machine is required to straighten the processed wires.

[0004] While traditional straightening equipment can perform basic straightening functions, it lacks online inspection methods. Whether the straightened wire meets the standards usually relies on manual visual inspection or offline sampling. Operators judge the straightness by visual observation or manually rolling the wire. This method is highly subjective, has large random errors, cannot perform quantitative assessment, and has low inspection efficiency, making it difficult to meet the needs of modern continuous production.

[0005] Some improved equipment attempts to integrate detection functions, such as using fixed optical sensors or mechanical contacts for unidirectional measurement. However, such solutions can only detect bending in a single direction and cannot comprehensively reflect the bending status of the wire along the entire circumference, resulting in blind spots. Other solutions propose using complex multi-sensor arrays or manual measurement after shutdown. While these can improve accuracy, they severely sacrifice operational efficiency, are costly, structurally complex, and cannot achieve simultaneous production and inspection.

[0006] To address this, we have proposed a straw rope nail straightening machine. Utility Model Content

[0007] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a straw rope nail straightening machine.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a straw rope nail straightening machine, comprising a frame and a straightening mechanism fixedly installed on the top of the frame, wherein the discharge end of the straightening mechanism is provided with a fixed column, and the fixed column is fixedly installed on the top of the frame, wherein a guide sleeve is provided on one side of the outer surface of the fixed column and extends to the other side, and the guide sleeve is fixedly connected to the fixed column, wherein a bearing seat is fixedly connected to one end of the guide sleeve, and an electric rotating assembly is installed between the bearing seat and the guide sleeve;

[0009] The movable end of the electric rotating assembly is uniformly and fixedly connected to four spring seats, and the movable end of each of the four spring seats is fixedly connected to a pressure sensor. The detection end of each of the four pressure sensors is fixedly connected to a ball bearing rod.

[0010] Furthermore, the electric rotating assembly includes a motor, which passes through the fixed column and is fixedly connected to the fixed column. A drive gear is fixedly connected to the drive end of the motor, and a driven gear is meshed with the top of the drive gear. A movable ring is fixedly connected to the inner surface of the driven gear, and the movable ring is fixedly connected to the inner ring of the bearing in the bearing housing. This gear transmission method has a compact structure, ensuring the stability and reliability of the rotating scanning of the detection unit.

[0011] Furthermore, each of the four spring seats includes a seat body, and the seat body is fixedly connected to the movable ring. A spring body is fixedly connected to the inner wall of one side of the seat body. A movable plate is fixedly connected to the spring body on the side of the seat body opening, and the mounting end of the pressure sensor is fixedly connected to the movable plate. This structure provides a continuous radial preload for the pressure sensor, ensuring that the detection head maintains constant pressure contact with the wire surface.

[0012] Furthermore, the outer wall of the movable plate slides against the inner wall of the seat. This sliding fit structure effectively prevents the movable plate from deflecting or getting stuck during movement, ensuring the accuracy and consistency of the pressure sensing direction.

[0013] Furthermore, each of the four ball bearing rods includes a movable rod, which is fixedly connected to the detection end of the pressure sensor. A steel ball is slidably embedded at the end of the movable rod away from the pressure sensor. The steel ball contact design transforms the sliding friction on the wire surface into rolling friction, greatly reducing wear and movement resistance during the detection process.

[0014] Furthermore, the bearing housing is fixedly connected to the guide sleeve, which ensures the firmness and stability of the bearing housing and the entire rotation detection component.

[0015] The beneficial effects of this utility model are:

[0016] In use, this invention achieves dual-mode collaborative operation of high-speed linear detection and rotary scanning by setting up four electrically rotatable, evenly distributed fixed detection units. This ensures 100% online rapid screening under production cycle time and allows for shutdown verification of abnormal sections, greatly improving overall detection efficiency and coverage, and avoiding the limitations of a single detection method. Attached Figure Description

[0017] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments 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.

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

[0019] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This is a cross-sectional structural diagram of the base of this utility model.

[0021] The attached figures are labeled as follows:

[0022] 1. Frame; 2. Straightening mechanism; 3. Fixed column; 4. Guide sleeve; 5. Motor; 6. Bearing seat; 7. Driven gear; 8. Moving ring; 9. Base; 10. Drive gear; 11. Spring body; 12. Moving plate; 13. Pressure sensor; 14. Moving rod; 15. Steel ball. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-3 As shown, a straw rope nail straightening machine is disclosed, comprising a frame 1 and a straightening mechanism 2 fixedly installed on the top of the frame 1. The straightening mechanism 2 has a fixed post 3 at its discharge end, which is fixedly installed on the top of the frame 1. A guide sleeve 4 extends through one side of the outer surface of the fixed post 3 to the other side, and is fixedly connected to the fixed post 3. A bearing seat 6 is fixedly connected to one end of the guide sleeve 4, and the seat of the bearing seat 6 is fixedly connected to the guide sleeve 4. An electric rotating assembly is installed between the bearing seat 6 and the guide sleeve 4. The electric rotating assembly includes a motor 5, which passes through the fixed post 3 and is fixedly connected to it. A drive gear 10 is fixedly connected to the drive end of the motor 5. A driven gear 7 is meshed with the top of the drive gear 10. A movable ring 8 is fixedly connected to the inner surface of the driven gear 7, and the movable ring 8 is fixedly connected to the inner ring of the bearing in the bearing seat 6. The motor 5 is a Panasonic MINAS. The A6 series 400W servo motor is mounted on the side wall of the fixed column 3 via a transition flange (not shown in the figure), and the output shaft is perpendicular to the center line of the fixed column 3.

[0025] Four spring seats are evenly and fixedly connected to the movable end of the electric rotating assembly. Pressure sensors 13 are fixedly connected to the movable ends of the four spring seats. Each of the four spring seats includes a seat body 9, and the seat body 9 is fixedly connected to the movable ring 8. A spring body 11 is fixedly connected to the inner wall of one side of the seat body 9. A movable plate 12 is fixedly connected to the spring body 11 on the side of the opening of the seat body 9. The mounting end of the pressure sensor 13 is fixedly connected to the movable plate 12. The outer wall of the movable plate 12 slides against the inner wall of the seat body 9. The spring body 11 is made of SWPB steel wire and provides a constant preload of about 30N. The pressure sensor 13 is a 266AH-100KG miniature pressure sensor from ANYLOAD with an accuracy of ±0.5%FS.

[0026] Each of the four pressure sensors 13 has a ball bearing fixedly connected to its detection end. Each of the four ball bearings includes a movable rod 14, which is fixedly connected to the detection end of the pressure sensor 13. A steel ball 15 is slidably embedded at the end of the movable rod 14 away from the pressure sensor 13. The steel ball 15 is made of G10 grade precision chromium steel ball with a surface roughness Ra0.012. It is fitted with the groove of the movable rod 14 with a slight clearance, allowing it to rotate freely without radial movement.

[0027] Working principle: In actual use, an existing controller needs to be installed. The controller is electrically connected to the straightening mechanism 2, the motor 5, and the pressure sensor 13 to facilitate the overall operation control. The specific data analysis and processing involved to further realize the control function are methods that can be implemented by those skilled in the art based on common knowledge. These methods are not within the scope of this solution. The above description is only to illustrate the beneficial effects that can be achieved by this hardware structure improvement in combination with common knowledge.

[0028] I. Daily High-Speed ​​Linear Detection Mode

[0029] When the equipment is running normally without stopping, the electric rotating component does not start. Motor 5 remains stationary, and the moving ring 8 and the four detection units mounted on it are thus fixed in place.

[0030] At this time, under the preload of the spring body 11, the steel balls 15 at the top of the ball rods of the four detection units are always pressed against the surface of the continuously passing wire.

[0031] Four pressure sensors 13 operate continuously, monitoring the pressure values ​​in their respective directions in real time. When the wire is straight, the readings of the four sensors remain relatively stable. If the wire is bent, it will compress the ball bearing in a specific direction when passing through the detection point, causing significant fluctuations in the readings of the pressure sensor 13 at that point. The controller can detect this abnormal fluctuation and determine that the section of wire is unqualified, and can immediately trigger an alarm.

[0032] This mode is extremely efficient and suitable for 100% online full inspection.

[0033] II. Periodic or Triggered Rotation Detection Mode

[0034] This mode is activated when the device is paused and is used for verification or periodic calibration.

[0035] When the linear detection mode detects abnormal readings, or when the set periodic detection cycle is reached, the equipment will stop feeding.

[0036] Subsequently, motor 5 starts, driving the drive gear 10 to rotate, which in turn meshes with the driven gear 7, causing the movable ring 8 to rotate 360 ​​degrees within the bearing housing 6. The four detection units fixed on the movable ring 8 then synchronously revolve around the wire once.

[0037] During this process, the spring body 11 continuously pushes the movable plate 12 and the movable rod 14, causing the steel ball 15 to adhere tightly to the surface of the wire. If the wire has any bending or elliptic defects in any direction, its radial runout will cause the pressure values ​​of the four pressure sensors 13 to change regularly and periodically.

[0038] The controller collects all pressure data for one revolution, and after analysis, it can calculate the wire's curvature, out-of-roundness, and even bending direction. This mode has a much higher measurement accuracy than the linear mode, and the results are used for final quality assessment, equipment calibration, or process parameter optimization.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A straw rope nail straightening machine, comprising a frame (1) and a straightening mechanism (2) fixedly installed on the top of the frame (1), characterized in that: The straightening mechanism (2) has a fixed column (3) at the discharge end, and the fixed column (3) is fixedly installed on the top of the frame (1). The outer surface of the fixed column (3) has a guide sleeve (4) that extends through to the other side, and the guide sleeve (4) is fixedly connected to the fixed column (3). One end of the guide sleeve (4) is fixedly connected to a bearing seat (6), and an electric rotating assembly is installed between the bearing seat (6) and the guide sleeve (4). The movable end of the electric rotating assembly is uniformly and fixedly connected to four spring seats, and the movable end of each of the four spring seats is fixedly connected to a pressure sensor (13), and the detection end of each of the four pressure sensors (13) is fixedly connected to a ball rod.

2. The straw rope nail straightening machine according to claim 1, characterized in that: The electric rotating assembly includes a motor (5), which is installed through the fixed column (3) and fixedly connected to the fixed column (3). The driving end of the motor (5) is fixedly connected to a drive gear (10), and the top of the drive gear (10) is meshed with a driven gear (7). The inner surface of the driven gear (7) is fixedly connected to a movable ring (8), and the movable ring (8) is fixedly connected to the inner ring of the bearing housing (6).

3. A straw rope nail straightening machine according to claim 2, characterized in that: Each of the four spring seats includes a seat body (9), and the seat body (9) is fixedly connected to the movable ring (8). A spring body (11) is fixedly connected to the inner wall of one side of the seat body (9). A movable plate (12) is fixedly connected to the spring body (11) on the side of the opening of the seat body (9), and the mounting end of the pressure sensor (13) is fixedly connected to the movable plate (12).

4. A straw rope nail straightening machine according to claim 3, characterized in that: The outer wall of the movable plate (12) slides against the inner wall of the seat (9).

5. A straw rope nail straightening machine according to claim 3, characterized in that: Each of the four ball bearing rods includes a movable rod (14), and the movable rod (14) is fixedly connected to the detection end of the pressure sensor (13). A steel ball (15) is slidably embedded at the end of the movable rod (14) away from the pressure sensor (13).

6. A straw rope nail straightening machine according to claim 1, characterized in that: The bearing housing (6) is fixedly connected to the guide sleeve (4).

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