Laser steel bar scribing and weighing all-in-one machine
Through the laser reinforcement line weighing machine that integrates laser line etching, length measurement, weight measurement and tensile rate measurement functions, the problem of large error in the steel bar detection results in the existing technology is solved, and precise integrated detection of multiple steel bar indicators is achieved.
Patent Information
- Application Number
- CN202421993140.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-08-16
AI Technical Summary
The existing steel bar detection device has a single function, and requires human operation, resulting in large errors in the detection results, making it difficult to achieve integrated inspection of multiple indicators of steel bars.
Design a laser reinforcement bar etching and weighing machine, integrating laser etching, length measurement, weight measurement, and stretching rate measurement functions. Through image recognition equipment, weighing sensors, laser etching mechanisms and sliding components, accurate positioning of steel bars and automatic detection of multiple indicators is achieved.
The accuracy of steel bar detection is improved, errors are reduced, testing efficiency and device versatility are improved, and multiple indicators of steel bars are integrated.
Smart Images
Figure CN223250783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel bar testing equipment, in particular to a laser steel bar marking and weighing integrated machine. Background Art
[0002] Reinforced concrete components are the primary load-bearing members of concrete structures. The load-bearing capacity of reinforced concrete components is primarily governed by the cross-sectional dimensions, effective cross-sectional height, concrete and steel strength, and the amount of reinforcement. Obviously, given a certain cross-sectional dimension and concrete strength, the load-bearing capacity of reinforced concrete components is governed by the steel strength, effective cross-sectional height, and amount of reinforcement. The standard value of steel bar strength is the tensile strength of the steel bar, representing the material's resistance to maximum uniform plastic deformation. Before a tensile specimen is subjected to maximum tensile stress, deformation is uniform. However, after this stress is exceeded, the metal begins to neck, resulting in concentrated deformation. For brittle materials with no (or very little) uniform plastic deformation, it reflects the material's resistance to fracture. Therefore, when the steel bars are delivered to the site, their quality indicators must be fully inspected and test pieces must be taken in batches for yield strength, tensile strength, elongation and cold bending tests. Their quality should comply with the regulations and design requirements of the current national standards "Hot-rolled Plain Round Steel Bars for Reinforced Concrete" (GB1499.1-2008), "Hot-rolled Ribbed Steel Bars for Reinforced Concrete" (GB / T1499.2-2018) and "Hot-rolled Low-carbon Steel Circular Rods" (GB / T701-2008).
[0003] The current steel bar detection device has a single function and requires human cooperation. During the detection process, manual operation often causes errors in the data results due to deviations in touch, which has a certain impact on the final test results. Therefore, it is necessary to design a detection device that integrates steel bar marking, weighing and other indicators to solve the above problems. Utility Model Content
[0004] In response to the above problems, the utility model provides a laser steel bar marking and weighing all-in-one machine, which integrates steel bar marking, length measurement, weight measurement and elongation measurement into one design, reducing the problem of high error in test results caused by the existing equipment testing steel bar detection indicators separately.
[0005] The technical solution adopted by the utility model to solve its technical problems is: a laser steel bar marking and weighing integrated machine, including a frame, a first crossbeam and a second crossbeam parallel to each other are provided on the top of the frame, an image recognition device is slidably provided on the first crossbeam, a laser marking mechanism is slidably provided on the second crossbeam, a steel bar placing device is provided at the lower part of the frame and slides longitudinally inside the frame, the steel bar placing device includes a base plate, a placing plate arranged on the base plate, and a weighing sensor between the base plate and the placing plate, and a proximity switch assembly and a laser length measuring mechanism are provided on the side surfaces of the steel bar placing device in sequence.
[0006] As an optimization, a sliding assembly is provided between the image recognition device and the first beam, and between the laser engraving mechanism and the second beam. The sliding assembly includes a slide rail, a slider, and a driving component for driving the slider to move on the slide rail.
[0007] As an optimization, the slider is provided with a through hole with an internal thread, and the driving component includes a motor and a screw. The screw passes through the through hole, and under the drive of the motor, the slider makes a linear reciprocating motion along the screw in the slide rail.
[0008] As an optimization, the laser marking mechanism includes a laser marking machine, a first sliding member having the same structure as the sliding assembly, and a connecting plate connecting the laser marking machine and the first sliding member.
[0009] As an optimization, a limiting plate is provided on a side of the placement plate away from the proximity switch assembly, and a plurality of evenly distributed magnets are provided on the limiting plate.
[0010] As an optimization, the placement plate is provided with a plurality of longitudinally distributed support plates, and the support plates are provided with a plurality of V-shaped clamps opposite to the magnets.
[0011] As an optimization, both upper ends of the base plate are provided with extension plates with V-shaped clamping edges, and one end of the extension plate extends out of the base plate.
[0012] As an optimization, linear guide rails are provided between the two lower ends of the base plate and the frame, and a first driving member with the same structure as the driving member is provided between the linear guide rails at both ends. A connecting shaft with an internal thread is provided under the base plate for allowing the screw on the first driving member to pass through.
[0013] As an optimization, the proximity switch assembly includes a raised bolt arranged on the side of the substrate and a longitudinal beam arranged on the frame, and the longitudinal beam is provided with a first proximity switch, a second proximity switch, a third proximity switch and a fourth proximity switch in sequence from the outside to the inside.
[0014] As an optimization, the laser length measuring mechanism includes a fixed plate arranged on a frame, a moving component arranged on the fixed plate and a laser length measuring instrument 36 arranged on the moving component. The structure of the moving component is the same as that of the sliding assembly.
[0015] The beneficial effects of the present invention are as follows: the present invention provides a laser steel bar marking and weighing integrated machine, which realizes the detection of steel bar marking, weighing, length, elongation after fracture and maximum force elongation by setting a laser marking mechanism, a weighing sensor, a laser length measuring mechanism and an image recognition device. By converting the data between each part, the accuracy of the steel bar detection test is improved and the error is reduced; a proximity switch component is set, and the position of the steel bar placement device is controlled by the first proximity switch, the second proximity switch, the third proximity switch and the fourth proximity switch, so that the steel bar and the laser marking mechanism are accurately positioned, thereby improving the test efficiency; a sliding component is set to facilitate the movement of each detection component and the adjustment is convenient, and it is suitable for testing steel bars of different models, thereby increasing the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of the utility model after installation;
[0017] Figure 2 This is a schematic diagram of the sliding assembly structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the structure of the laser marking mechanism of the present utility model;
[0019] Figure 4 This is a schematic diagram of the side structure of the steel bar placement device of the present invention;
[0020] Figure 5 for Figure 1 Schematic diagram of the enlarged structure of part A.
[0021] Among them: 1. frame, 2. first crossbeam, 3. second crossbeam, 4. image recognition device, 5. laser marking mechanism, 6. steel bar placement device, 7. base plate, 8. placement plate, 9. weighing sensor, 10. laser length measuring mechanism, 11. sliding assembly, 12. slide rail, 13. slider, 14. through hole, 15. motor, 16. screw, 17. laser marking machine, 18. first sliding member, 19. connecting plate, 20. limit plate, 21. magnet, 22. support plate, 23. V-shaped clamp, 24. extension plate, 25. linear guide, 26. first driving member, 27. connecting shaft, 28. raised bolt, 29. longitudinal beam, 30. first proximity switch, 31. second proximity switch, 32. third proximity switch, 33. fourth proximity switch, 34. fixing plate, 35. moving part, 36. laser length measuring instrument. DETAILED DESCRIPTION
[0022] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present application belongs.
[0023] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0024] For the convenience of description, if the words "up", "down", "left" and "right" appear in this utility model, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they should not be understood as limiting the present utility model.
[0025] like Figure 1-4 As shown, a laser steel bar marking and weighing integrated machine includes a frame 1, a first crossbeam 2 and a second crossbeam 3 parallel to each other are provided on the top of the frame 1, an image recognition device 4 is slidably provided on the first crossbeam 2, including a collection camera and a built-in processor, which is used to detect the elongation after fracture and the maximum force elongation of the steel bar, and the steel bar image information collected by the camera is transmitted to the central processor for processing, and finally the elongation after fracture and the maximum force elongation of the steel bar in the tensile test are measured; a laser marking mechanism 5 is slidably provided on the second crossbeam 3, which is used to mark the steel bar; a steel bar placing device 6 that slides longitudinally in the frame 1 is provided at the lower part of the frame 1, the steel bar placing device 6 includes a base plate 7, a placing plate 8 arranged on the base plate 7, and a weighing sensor 9 between the base plate 7 and the placing plate 8, and the weighing sensor 9 tests the actual weight of the steel bar; a proximity switch assembly and a laser length measuring mechanism 10 are provided on the side of the steel bar placing device 6 in sequence, the proximity switch assembly is used to control the moving position of the steel bar placing device 6, and the laser length measuring mechanism 10 is used to test the actual length of the steel bar, and the weight deviation of the steel bar is detected by the actual weight and the theoretical weight. The various components together form a measurement operation control system that can set and select various test procedures, automatically and accurately control the test process, and ensure the accuracy of the test.
[0026] like Figure 2As shown, to facilitate movement, a sliding assembly 11 is provided between the image recognition device 4 and the first crossbeam 2, and between the laser marking mechanism 5 and the second crossbeam 3. The sliding assembly 11 includes a slide rail 12, a slider 13, and a drive component that drives the slider 13 on the slide rail 12. The slider 13 is provided with a through hole 14 with an internal thread. The drive component includes a motor 15 and a lead screw 16. The lead screw 16 passes through the through hole 14. Driven by the motor 15, the slider 13 moves back and forth linearly along the lead screw 16 within the slide rail 12. The provision of the sliding assembly 11 makes the lateral position of the image recognition device 4 and the laser marking mechanism 5 adjustable, providing flexible positioning and easy operation.
[0027] like Figure 3 As shown, the laser engraving mechanism 5 includes a laser engraving machine 17, a first sliding member 18 with the same structure as the sliding assembly 11 (the structure is the same, but the size needs to be set according to the position of the components), and a connecting plate 19 connecting the laser engraving machine 17 and the first sliding member 18. The first sliding member 18 is connected to the slider 13 of the sliding assembly 11. A second sliding member with the same structure as the sliding assembly is provided between the image recognition device and the sliding assembly. The arrangement of the first sliding member 18 and the second sliding member enables both the laser engraving machine 17 and the image recognition device 4 to be adjusted in the longitudinal direction.
[0028] In order to reduce the position error when measuring the length of the steel bars, a limit plate 20 is provided on the side of the placement plate 8 away from the proximity switch assembly, and a number of evenly distributed magnets 21 are provided on the limit plate 20. The placement plate 8 is provided with a number of longitudinally distributed support plates 22, and the support plates 22 are provided with a number of V-shaped clamps 23 opposite to the magnets 21. When the steel bars are placed on the V-shaped clamps 23, they are close to the facing magnets 21 and will be directly attracted by the magnets 21, so that the end point position of each steel bar remains consistent.
[0029] like Figure 4 As shown, in order to facilitate the steel bar marking operation, an extension plate 24 is separately provided opposite to the laser marking mechanism 5 , and both upper ends of the base plate 7 are provided with an extension plate 24 with a V-shaped clamp 23 , and one end of the extension plate 24 extends out of the base plate 7 .
[0030] To enable longitudinal sliding of the rebar placement device 6, linear guides 25 are provided between the lower ends of the base plate 7 and the frame 1. A first drive member 26, identical in structure to the drive component (the structure is identical, but the size is determined by the component's position), is located between the two ends of the linear guides 25. A connecting shaft 27 with internal threads is provided beneath the base plate 7, through which the lead screw 16 on the first drive member 26 passes. Driven by the first drive member 26, the base plate 7 can move back and forth within the frame 1, facilitating its alignment with the image recognition device 4 and laser marking mechanism 5 located above the frame 1.
[0031] The proximity switch assembly includes a raised bolt 28 provided on the side of the base plate 7 and a longitudinal beam 29 provided on the frame 1. The longitudinal beam 29 is provided with a first proximity switch 30, a second proximity switch 31, a third proximity switch 32 and a fourth proximity switch 33 in sequence from the outside to the inside. The raised bolt 28 and the first proximity switch 30, the second proximity switch 31, the third proximity switch 32 and the fourth proximity switch 33 are arranged relative to each other. When placing and removing steel bars, the moving operation causes the substrate 7 to move. When the raised bolt 28 moves to the position of the first proximity switch 30, the steel bar placement device 6 stops moving for the customer to take and place the steel bars. In order to avoid the steel bar placement device 6 from moving to the innermost side and colliding, a fourth proximity switch 33 is provided. When the raised bolt 28 moves to the position of the fourth proximity switch 33, the steel bar placement device 6 stops moving. The second proximity switch 31 and the third proximity switch 32 are for cooperating with the operation of the laser marking mechanism 5 when marking. When the laser marking mechanism 5 is running, the substrate 7 moves back and forth between the second proximity switch 31 and the third proximity switch 32. When the raised bolt 28 moves to the second proximity switch 31, it serves as the starting point of the marking operation. When the raised bolt 28 moves to the third proximity switch 32, it serves as the end point of the marking operation, so that the steel bars to be marked are marked on the extension plate 24 by the laser marking machine 17 as the substrate 7 moves back and forth.
[0032] The laser length measurement mechanism 10 includes a fixed plate 34 mounted on the frame 1, a movable component 35 mounted on the fixed plate 34, and a laser length measuring instrument 36 mounted on the movable component 35. The structure of the movable component 35 is identical to that of the sliding assembly 11 (the structure is the same, but the size is determined by the component's position). The arrangement of the movable component 35 allows the laser length measuring instrument 36 to be adjusted in height to accommodate rebars of varying diameters, facilitating accurate alignment of the laser beam from the laser length measuring instrument 36 with the center of the rebar end face.
[0033] Working principle: The utility model provides a laser steel bar marking and weighing integrated machine, which can realize marking, length measurement, weight measurement, elongation after fracture, and maximum force elongation measurement.
[0034] 1. Marking: First, place the steel bar to be marked. Under the action of the first driving member 26, the steel bar placement device 6 moves along the linear guide rail 25. When the raised bolt 28 on the base plate 7 moves to the position of the first proximity switch 30, the steel bar placement device 6 stops moving. After the steel bar is placed on the extension plate 24, the steel bar placement device 6 makes the opposite movement. When the raised bolt 28 moves to the fourth proximity switch 33, the steel bar placement device 6 stops moving. At this time, the steel bar is at the bottom of the laser marking machine 17; turn on the laser marking machine 17, the steel bar placement device 6 starts to move, and under the induction of the raised bolt 28 and the second proximity switch 31 and the third proximity switch 32, the extension plate 24 moves back and forth at the bottom of the laser marking machine 17 to realize the marking operation of the steel bar.
[0035] 2. Length and weight measurement: Place the steel bar on the support plate 22 on the steel bar placement device 6. One end of the steel bar is attracted by the magnet 21 to achieve endpoint positioning. The weighing sensor 9 under the base plate 7 can detect the actual weight of the steel bar; move the steel bar placement device 6 and the laser length meter 36 to align the laser length meter 36 with the center of the steel bar end face. The laser length meter 36 can detect the actual length of the steel bar.
[0036] 3. Measure elongation after fracture and elongation at maximum force: After the marked steel bar is stretched through the testing machine, it is placed on the support plate 22 on the steel bar placement device 6, so that the stretched part of the steel bar is aligned with the image recognition device 4. Turn on the image recognition device 4 and automatically test the elongation after fracture and elongation at maximum force by detecting the image of the stretched steel bar.
[0037] The above-mentioned specific implementation methods are only specific cases of the present utility model. The scope of patent protection of the present utility model includes but is not limited to the product form and style of the above-mentioned specific implementation methods. Any appropriate changes or modifications made to them by ordinary technicians in the relevant technical field that comply with the claims of the present utility model shall fall within the scope of patent protection of the present utility model.
Claims
1. Laser steel bar marking and weighing integrated machine, characterized by: It includes a frame, a first crossbeam and a second crossbeam parallel to each other are provided on the top of the frame, an image recognition device is slidably provided on the first crossbeam, a laser marking mechanism is slidably provided on the second crossbeam, a steel bar placement device is provided at the lower part of the frame and slides longitudinally inside the frame, the steel bar placement device includes a base plate, a placement plate arranged on the base plate, and a weighing sensor between the base plate and the placement plate, and a proximity switch assembly and a laser length measuring mechanism are provided on the side of the steel bar placement device in sequence.
2. The laser steel bar marking and weighing integrated machine according to claim 1, characterized in that: A sliding assembly is provided between the image recognition device and the first beam, and between the laser engraving mechanism and the second beam. The sliding assembly includes a slide rail, a slider, and a driving component for driving the slider to move on the slide rail.
3. The laser steel bar marking and weighing integrated machine according to claim 2, characterized in that: The slider is provided with a through hole with an internal thread, and the driving component includes a motor and a lead screw. The lead screw passes through the through hole. Under the drive of the motor, the slider moves back and forth in a straight line along the lead screw in the slide rail.
4. The laser steel bar marking and weighing integrated machine according to claim 2, characterized in that: The laser engraving mechanism includes a laser engraving machine, a first sliding part with the same structure as the sliding assembly, and a connecting plate connecting the laser engraving machine and the first sliding part. A second sliding part with the same structure as the sliding assembly is provided between the image recognition device and the sliding assembly.
5. The laser steel bar marking and weighing integrated machine according to claim 1, characterized in that: A limiting plate is provided on a side of the placement plate away from the proximity switch assembly, and a plurality of evenly distributed magnets are provided on the limiting plate.
6. The laser steel bar marking and weighing integrated machine according to claim 5, characterized in that: The placement plate is provided with a plurality of longitudinally distributed support plates, and the support plates are provided with a plurality of V-shaped clamping openings opposite to the magnets.
7. The laser steel bar marking and weighing integrated machine according to claim 6, characterized in that: Both upper ends of the base plate are provided with an extension plate with a V-shaped clamping opening, and one end of the extension plate extends out of the base plate.
8. The laser steel bar marking and weighing integrated machine according to claim 3, characterized in that: Linear guide rails are provided between the two lower ends of the base plate and the frame, and a first driving member with the same structure as the driving member is provided between the linear guide rails at both ends. A connecting shaft with an internal thread is provided under the base plate for the screw on the first driving member to pass through.
9. The laser steel bar marking and weighing integrated machine according to claim 1, characterized in that: The proximity switch assembly includes a protruding bolt arranged on the side of the base plate and a longitudinal beam arranged on the frame. The longitudinal beam is sequentially provided with a first proximity switch, a second proximity switch, a third proximity switch and a fourth proximity switch from the outside to the inside.
10. The laser steel bar marking and weighing integrated machine according to claim 2, characterized in that: The laser length measuring mechanism includes a fixed plate arranged on a frame, a moving component arranged on the fixed plate, and a laser length measuring instrument arranged on the moving component. The structure of the moving component is the same as that of the sliding assembly.