On-line diameter detection device during cold rolling of reinforcing steel

Abstract

The utility model relates to the technical field of reinforcing steel bar cold rolling processing, concretely to online diameter detection device in reinforcing steel bar cold rolling process, including base, be provided with fixed base on base, can be provided with lifting seat on fixed base and lift, the top of lifting seat is provided with mounting bracket, two groups of installation bottom plate are provided with symmetry on mounting bracket, be provided with removal drive structure on mounting bracket, removal drive structure is used for controlling two groups of installation bottom plate synchronous reverse movement, first measuring instrument, second measuring instrument and electric push rod are arranged and set up on installation bottom plate, the output top of electric push rod is provided with installation top plate, and installation top plate is parallel with installation bottom plate, and the bottom of installation top plate is provided with third measuring instrument, the utility model can realize reinforcing steel bar cold rolling process in the convenient detection of online diameter, and timely discover the process exception in rolling process, reduce the scrap rate, reduce production cost.

Description

Technical Field

[0001] This utility model relates to the field of cold rolling technology of steel bars, specifically to an online diameter detection device during the cold rolling process of steel bars. Background Technology

[0002] Cold rolling of reinforcing bars is a process that uses room temperature to plastically deform hot-rolled reinforcing bars, thereby improving their strength and hardness. This process utilizes a rolling mill to apply pressure to the reinforcing bars, forcing them through a gradually decreasing die, resulting in a smaller diameter and longer length, while simultaneously refining the grain size, thus increasing yield strength and tensile strength. Cold-rolled reinforcing bars have a smooth surface and precise dimensions, making them suitable for prestressed components in concrete structures.

[0003] During the cold rolling process of reinforcing bars, it is necessary to inspect the diameter of the reinforcing bars to avoid affecting the structural strength and safety performance due to diameter deviation. At the same time, by inspecting the diameter of cold-rolled reinforcing bars, process abnormalities during the rolling process (such as mold wear or equipment failure) can be detected, reducing scrap rate and lowering production costs. In the current technology, laser ranging is usually used to achieve online inspection of reinforcing bars during the cold rolling process.

[0004] Traditional testing devices mostly use single-point static measurement methods, which result in low testing efficiency and the inability to achieve continuous multi-section synchronous monitoring. The equipment lacks adaptive adjustment capabilities and cannot quickly adapt to the testing needs of steel bars of different specifications. The adjustment of the testing range is inflexible and relies on manual intervention, which seriously affects production efficiency and testing accuracy. Utility Model Content

[0005] The purpose of this invention is to provide an online diameter detection device for steel bar cold rolling process to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an online diameter detection device for steel bar cold rolling process, comprising a base, a fixed seat on the base, a lifting seat on the fixed seat that can be raised and lowered, a mounting frame on the top of the lifting seat, two sets of mounting base plates symmetrically arranged on the mounting frame, a moving drive structure on the mounting frame, the moving drive structure being used to control the two sets of mounting base plates to move synchronously in opposite directions, a first measuring instrument, a second measuring instrument, and an electric push rod arranged on the mounting base plate, a mounting top plate being provided at the output top of the electric push rod, the mounting top plate being parallel to the mounting base plate, and a third measuring instrument being provided at the bottom end of the mounting top plate, the measuring axis of the third measuring instrument being coincident with the measuring axis of the first measuring instrument and misaligned with the measuring axis of the second measuring instrument.

[0007] The present invention is further configured such that a lifting groove is provided on the fixed base, an electric cylinder is provided in the lifting groove, the bottom end of the lifting base is slidably installed in the lifting groove and connected to the output end of the electric cylinder, the electric cylinder is activated, and the lifting adjustment is achieved by controlling the movement of the lifting base in the lifting groove through the electric cylinder, thereby realizing the lifting adjustment of the mounting frame, and further realizing the lifting adjustment of the mounting base plate located on the mounting frame, thereby realizing the flexible adjustment of the overall detection height.

[0008] The present invention is further configured such that the moving drive structure includes a bidirectional screw, the bidirectional screw is mounted on a mounting frame via bearings, a drive motor is mounted on the mounting frame, the drive motor is connected to the bidirectional screw via transmission, two sets of drive blocks are symmetrically arranged on the bidirectional screw via threads, a moving limit structure is provided between the drive blocks and the mounting frame, and the mounting base plate is mounted on the drive blocks.

[0009] The present invention is further configured such that the movable limiting structure includes limiting rods, which are symmetrically arranged on both sides of the bidirectional screw, and the tail end is connected and fixed to the mounting frame. The driving block is slidably sleeved on the limiting rods. The limiting rods are used to limit the movement of the driving block, so that the driving block can move linearly under the drive of the bidirectional screw. During this process, the drive motor is started, and the rotation of the bidirectional screw is controlled by the drive motor. Through the threaded engagement relationship between the driving block and the bidirectional screw and the sliding limiting relationship between the driving block and the limiting rod, the two sets of driving blocks can be controlled to move synchronously in opposite directions on the mounting frame. In this way, the two sets of mounting top plates and mounting bottom plates can be controlled to move synchronously in opposite directions, thereby realizing the flexible adjustment of the detection range during online diameter detection in the cold rolling process of steel bars.

[0010] The present invention is further provided with a movable wheel at the bottom end of the base, which enables the device to be moved conveniently as a whole.

[0011] The present invention is further configured such that a fixing post is threaded at the corner of the base, a fixing plate is provided at the bottom end of the fixing post, and a fixing handle is provided at the top end. After the whole assembly is moved to a suitable position by the action of the moving wheels, the fixing handle is tightened. The fixing handle can control the fixing post to drive the fixing plate to descend, so that the fixing plate moves downward and presses against the ground or other installation interface to achieve stable support for the whole assembly. When it is necessary to move, the fixing handle is controlled to rotate in the opposite direction, so that the fixing plate is disengaged from the installation interface. With the action of the moving wheels, the whole device can be moved conveniently.

[0012] The present invention is further configured such that the fixing plate has fixing holes. After the fixing plate is pressed against the ground or other installation interface, existing screws, ground nails or other fasteners can pass through the fixing holes to achieve the connection and fixation between the fixing plate and the installation interface, thereby achieving stable support for the entire device during use.

[0013] The present invention is further provided with a telescopic protective cover between the two sets of drive blocks and between the drive block and the mounting bracket. The telescopic protective cover is sleeved on the outside of the bidirectional screw and the limiting rod. The telescopic protective cover can improve the protection of the bidirectional screw and the limiting rod during use and reduce the deposition of dust and other substances on the bidirectional screw.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. Highly flexible detection and adjustment capabilities.

[0015] This invention utilizes an electric cylinder to control the lifting seat's movement within the lifting groove, coupled with a bidirectional screw drive structure on the mounting frame, to achieve flexible adjustment of the detection height and synchronous reverse adjustment of the detection range. This design allows the device to quickly adapt to the detection needs of steel bars of different specifications, solving the problem of inflexible adjustment in traditional single-point static measurement methods. The introduction of an electric push rod further optimizes the fine-tuning accuracy of the measurement spacing. Combined with the collaborative work of three sets of laser measuring instruments, it enables simultaneous monitoring of multiple cross-sections on cold rolling production lines, significantly improving detection efficiency, accuracy, and adaptability.

[0016] 2. Intelligent dynamic measurement system

[0017] This invention innovatively employs a three-instrument collaborative measurement mode (first, second, and third measuring instruments) to calculate the rebar diameter D = H - (S1 + S2) in real time using an algorithm. This dynamic measurement method eliminates the error of a single sensor, and the averaging of the two sets of measuring structures further enhances data reliability. The combined design of the telescopic protective cover and the moving limiting structure ensures the stability of the bidirectional screw drive system while effectively preventing dust interference at the rolling site. Measurement data can be fed back to the control system in real time, providing timely warnings of rolling process abnormalities, reducing scrap rates, and improving product quality control.

[0018] 3. Modular mobile installation design

[0019] The integrated base design with casters and a liftable fixed column gives the device both flexible mobility and stable installation. The spiral fixing mechanism, consisting of a fixed column and a fixed plate controlled by a fixed handle, along with anchoring holes, allows for quick and easy positioning and locking of the equipment. Furthermore, this mechanism can be flexibly replaced with electric actuators, cylinders, or other electrically controlled drive systems, depending on cost and production needs. This design is particularly suitable for the frequent production changes required in steel rolling mills, allowing the entire inspection unit to be quickly moved to different rolling mill positions. The modular structure also facilitates maintenance and repair; core components such as electric cylinders and drive motors can utilize existing standardized interfaces, significantly reducing equipment maintenance costs and downtime. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall structure of the online diameter detection device and the cold-rolled steel bar in the cold rolling process of this utility model.

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the mounting structure of the mounting base plate on the mounting frame in this utility model;

[0023] Figure 4 This is a schematic diagram showing the cooperation relationship between the first measuring instrument, the second measuring instrument, and the third measuring instrument in this utility model;

[0024] Figure 5 This is a cross-sectional schematic diagram of the cooperation structure between the fixed seat and the lifting seat in this utility model.

[0025] The components represented by each number in the attached diagram are listed below: 1. Base; 2. Fixed seat; 3. Lifting seat; 4. Mounting bracket; 5. Mounting base plate; 6. First measuring instrument; 7. Second measuring instrument; 8. Electric push rod; 9. Mounting top plate; 10. Third measuring instrument; 11. Lifting groove; 12. Electric cylinder; 13. Bidirectional screw; 14. Drive motor; 15. Drive block; 16. Limit rod; 17. Moving wheel; 18. Fixed column; 19. Fixed plate; 20. Fixed handle; 21. Fixed hole; 22. Telescopic protective cover. Detailed Implementation

[0026] 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.

[0027] This utility model provides a technical solution: Please refer to Figures 1-5An online diameter detection device for steel bar cold rolling process includes a base 1, a fixed seat 2 on the base 1, a lifting seat 3 on the fixed seat 2, a mounting frame 4 at the top of the lifting seat 3, two sets of mounting base plates 5 symmetrically arranged on the mounting frame 4, and a moving drive structure on the mounting frame 4 for controlling the synchronous reverse movement of the two sets of mounting base plates 5. A first measuring instrument 6, a second measuring instrument 7, and an electric push rod 8 are arranged on the mounting base plates 5. A mounting top plate 9 is provided at the output top of the electric push rod 8. The mounting top plate 9 is parallel to the mounting base plates 5, and a third measuring instrument 10 is provided at the bottom of the mounting top plate 9. The measuring axis of the third measuring instrument 10 coincides with the measuring axis of the first measuring instrument 6 and is misaligned with the measuring axis of the second measuring instrument 7. In this utility model, the first measuring instrument 6, the second measuring instrument 7, and the third measuring instrument 10 are all laser scanning measuring instruments.

[0028] Please see Figures 1-5 As one embodiment of the fixed base 2: the fixed base 2 is provided with a lifting groove 11, and an electric cylinder 12 is provided in the lifting groove 11. The bottom end of the lifting seat 3 is slidably installed in the lifting groove 11 and connected to the output end of the electric cylinder 12. When the electric cylinder 12 is activated, the lifting seat 3 is controlled to lift and adjust in the lifting groove 11, thereby realizing the lifting and adjustment of the mounting frame 4, and further realizing the lifting and adjustment of the mounting base plate 5 located on the mounting frame 4, thereby realizing the flexible adjustment of the overall detection height.

[0029] Please see Figures 1-5 As one implementation of the mobile drive structure: the mobile drive structure includes a bidirectional screw 13, which is mounted on a mounting frame 4 via bearings. A drive motor 14 is provided on the mounting frame 4, and the drive motor 14 is connected to the bidirectional screw 13 in a transmission connection. Two sets of drive blocks 15 are symmetrically arranged on the threads of the bidirectional screw 13. A movement limit structure is provided between the drive blocks 15 and the mounting frame 4, and the mounting base plate 5 is mounted on the drive blocks 15.

[0030] The movable limiting structure includes a limiting rod 16, which is symmetrically arranged on both sides of the bidirectional screw 13, and its tail end is connected and fixed to the mounting frame 4. The driving block 15 is slidably sleeved on the limiting rod 16. The limiting rod 16 is used to limit the movement of the driving block 15, so that the driving block 15 can move linearly under the drive of the bidirectional screw 13. During this process, the drive motor 14 is started, and the rotation of the bidirectional screw 13 is controlled by the drive motor 14. Through the threaded engagement relationship between the driving block 15 and the bidirectional screw 13 and the sliding limiting relationship between the driving block 15 and the limiting rod 16, the two sets of driving blocks 15 can be controlled to move synchronously in opposite directions on the mounting frame 4. In this way, the two sets of mounting top plates 9 and mounting bottom plates 5 can be controlled to move synchronously in opposite directions, thereby realizing the flexible adjustment of the detection section during online diameter detection in the process of cold rolling of steel bars.

[0031] Please see Figures 1-5 As one implementation of the base 1: the bottom of the base 1 is provided with a movable wheel 17, which enables the device to be moved conveniently as a whole.

[0032] Please see Figures 1-5 As one embodiment of the base 1: a fixing post 18 is threaded at the corner of the base 1, a fixing plate 19 is provided at the bottom end of the fixing post 18, and a fixing handle 20 is provided at the top end. After the whole is moved to a suitable position by the action of the moving wheel 17, the fixing handle 20 is tightened. The fixing post 18 can be controlled by the fixing handle 20 to drive the fixing plate 19 to descend, so that the fixing plate 19 moves downward and presses against the ground or other installation interface to achieve stable support of the whole. When it is necessary to move, the fixing handle 20 is controlled to rotate in the opposite direction, so that the fixing plate 19 is removed from the installation interface. Under the action of the moving wheel 17, the whole device can be moved conveniently.

[0033] Please see Figures 1-5 As one implementation of the fixing plate 19: the fixing plate 19 has fixing holes 21. After the fixing plate 19 is pressed against the installation interface such as the ground, existing fasteners such as screws and ground nails can pass through the fixing holes 21 to achieve the connection and fixation between the fixing plate 19 and the installation interface, thereby achieving stable support for the whole device during use.

[0034] This utility model provides telescopic protective covers 22 between the two sets of drive blocks 15 and between the drive block 15 and the mounting bracket 4. The telescopic protective covers 22 are sleeved on the outside of the bidirectional screw 13 and the limiting rod 16. The telescopic protective covers 22 can improve the protection of the bidirectional screw 13 and the limiting rod 16 during use and reduce the deposition of dust on the bidirectional screw 13. The telescopic protective covers 22 can adopt a telescopic corrugated pipe structure.

[0035] In summary, the working principle and specific workflow of this utility model are as follows:

[0036] When in use, the entire unit is moved to a suitable position by the action of the moving wheel 17, so that the cold-rolled steel bar to be tested is located between the first measuring instrument 6 and the third measuring instrument 10, and is offset from the second measuring instrument 7.

[0037] During this process, the electric cylinder 12 can be activated to control the lifting seat 3 to lift and adjust within the lifting groove 11, thereby enabling the lifting and adjustment of the mounting frame 4, and further enabling the lifting and adjustment of the mounting base plate 5 located on the mounting frame 4, thus achieving flexible adjustment of the overall detection height to meet the above detection conditions.

[0038] After the detection position is adjusted, tighten the fixing handle 20. The fixing handle 20 can control the fixing column 18 to drive the fixing plate 19 to descend and press against the ground. The screws, ground nails and other fasteners are passed through the fixing holes 21 on the fixing plate 19 and connected and fixed to the ground, thereby achieving stable installation of the whole device. Here, the combination structure of the fixing handle 20 and the fixing column 18 can be replaced by electric push rod 8, cylinder and other electrically controlled telescopic devices.

[0039] During testing, the distance S1 between the mounting base plate 5 and the bottom end of the cold-rolled steel bar is measured by the first measuring instrument 6, the distance S2 between the mounting top plate 9 and the top end of the cold-rolled steel bar is measured by the third measuring instrument 10, and the distance H between the mounting base plate 5 and the mounting top plate 9 is measured by the second measuring instrument 7. The diameter of the cold-rolled steel bar is D = H - (S1 + S2).

[0040] This utility model sets up two sets of mounting base plates 5 and mounting top plates 9, and drives them to move by bidirectional screws 13. In this way, during the testing process, the drive motor 14 is started, and the rotation of the bidirectional screws 13 is controlled by the drive motor 14. The threaded engagement between the drive block 15 and the bidirectional screws 13 and the sliding limit relationship between the drive block 15 and the limit rod 16 can control the two sets of drive blocks 15 to move synchronously in opposite directions on the mounting frame 4.

[0041] In this way, the two sets of mounting top plates 9 and mounting bottom plates 5 can be controlled to move synchronously in opposite directions, so that the distance between the two sets of first measuring instruments 6, second measuring instruments 7 and third measuring instruments 10 changes, and the length of the detection section can be flexibly adjusted when the online diameter is detected during the cold rolling process of steel bars.

[0042] Furthermore, by employing two sets of measurement structures, the average value between the two sets of data can be taken, thereby improving the accuracy of cold-rolled steel bar diameter measurement.

[0043] Meanwhile, this utility model provides an electric push rod 8 between the mounting base plate 5 and the mounting top plate 9. By controlling the lifting and lowering of the electric push rod 8, the distance between the mounting top plate 9 and the mounting base plate 5 can be adjusted. In this way, in conjunction with the electric cylinder 12, the distance between the first measuring instrument 6 and the bottom end of the cold-rolled steel bar and the distance between the third measuring instrument 10 and the top end of the cold-rolled steel bar can be flexibly adjusted.

[0044] In this utility model, the operation of related electrical components such as motors and electric push rods can be controlled by a PLC control system according to a set program. The specific working process and working principle of this utility model have been described in detail. Based on the above working process and working principle, those skilled in the art should know the specific circuit connection relationship and implement it through existing technology. Furthermore, the circuit connection relationship between related electrical components and the specific driver program are not the subject of protection of this utility model, and this utility model will not elaborate on them.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online diameter detection device for steel bar cold rolling process, comprising a base (1), characterized in that: A fixed seat (2) is provided on the base (1). A lifting seat (3) is provided on the fixed seat (2). A mounting frame (4) is provided at the top of the lifting seat (3). Two sets of mounting base plates (5) are symmetrically arranged on the mounting frame (4). A moving drive structure is provided on the mounting frame (4). The moving drive structure is used to control the two sets of mounting base plates (5) to move synchronously in opposite directions. A first measuring instrument (6), a second measuring instrument (7) and an electric push rod (8) are arranged on the mounting base plate (5). A mounting top plate (9) is provided at the output top of the electric push rod (8). The mounting top plate (9) is parallel to the mounting base plate (5). A third measuring instrument (10) is provided at the bottom of the mounting top plate (9). The measuring axis of the third measuring instrument (10) coincides with the measuring axis of the first measuring instrument (6) and is misaligned with the measuring axis of the second measuring instrument (7).

2. The online diameter detection device for the cold rolling process of reinforcing bars according to claim 1, characterized in that: The fixed base (2) is provided with a lifting groove (11), and an electric cylinder (12) is provided in the lifting groove (11). The bottom end of the lifting base (3) is slidably installed in the lifting groove (11) and connected to the output end of the electric cylinder (12).

3. The online diameter detection device for the cold rolling process of reinforcing bars according to claim 1, characterized in that: The moving drive structure includes a bidirectional screw (13), which is mounted on a mounting frame (4) via bearings. A drive motor (14) is provided on the mounting frame (4), and the drive motor (14) is connected to the bidirectional screw (13) in a transmission connection. Two sets of drive blocks (15) are symmetrically arranged on the threads of the bidirectional screw (13). A moving limit structure is provided between the drive blocks (15) and the mounting frame (4), and the mounting base plate (5) is mounted on the drive blocks (15).

4. The online diameter detection device for the cold rolling process of reinforcing bars according to claim 3, characterized in that: The movable limiting structure includes a limiting rod (16), which is symmetrically arranged on both sides of the bidirectional screw (13), and its tail end is connected and fixed to the mounting bracket (4). The driving block (15) is slidably sleeved on the limiting rod (16).

5. The online diameter detection device for the cold rolling process of reinforcing bars according to claim 1, characterized in that: The base (1) is provided with a caster wheel (17) at its bottom end.

6. The online diameter detection device for the cold rolling process of reinforcing bars according to claim 5, characterized in that: The base (1) has a fixed post (18) threaded at the corner, a fixed plate (19) at the bottom end of the fixed post (18), and a fixed handle (20) at the top end.

7. The online diameter detection device for the cold rolling process of reinforcing bars according to claim 6, characterized in that: The fixing plate (19) has fixing holes (21).

8. The online diameter detection device for the cold rolling process of reinforcing bars according to claim 4, characterized in that: Telescopic protective covers (22) are provided between the two sets of drive blocks (15) and between the drive block (15) and the mounting bracket (4). The telescopic protective covers (22) are sleeved on the outside of the bidirectional screw (13) and the limiting rod (16).

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