A device for detecting the bending degree of bars
By designing a bar bending detection device with detection and blanking components, the problem of tedious and easily damaged bar bending after detection and sorting was solved, achieving fast and low-damage bar sorting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN YILISHA HARDWARE PLASTIC PROD CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-06-30
AI Technical Summary
The current method of classifying and placing defective and good products after testing the bending degree of the existing bars is time-consuming and can easily damage the bars.
A bar bending detection device was designed, comprising a detection component, a feeding component, and an anti-drop component. The feeding component uses a guide box and pusher plate structure to automatically classify the bars and drop them into the corresponding good product box or defective material box.
This enables rapid sorting and placement of bars, reduces the risk of bar damage, and improves testing efficiency.
Smart Images
Figure CN224423606U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bending degree detection technology, specifically a device for detecting the bending degree of bars. Background Technology
[0002] Bar bending is inspected and sorted to remove defective products, thus improving machining speed and stabilizing product quality. A bar bending inspection device is a specialized tool or system for measuring the degree of bending in bar stock. Its specific structure and technical approach vary depending on the inspection method. One existing method combines mechanical contact and optical inspection. The steel bar is placed on a testing platform with a light source box on one side, featuring a light-transmitting hole. The bar is placed on the testing platform at the light-transmitting hole and rotated more than 360 degrees backward. The light transmission at the contact point between the lower platform and the bar is visually observed. A thickness gauge is used to check if the light can pass through the gap with the most light. If it can, the bar bending exceeds the specified limit; conversely, if the gauge fails to pass, the bar bending is less than the required limit, and the bar bending is considered acceptable.
[0003] However, this inspection method requires placing the bars separately into defective and good material boxes after inspection, which is time-consuming and can damage the bars during placement. Therefore, a bar bending detection device is needed to solve the above problems. Utility Model Content
[0004] The purpose of this utility model is to provide a device for detecting the bending degree of bars, so as to solve the problems mentioned in the background art. To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0005] This utility model is a device for detecting the bending degree of bars, comprising:
[0006] The detection assembly includes a detection stage, a light source box, a light-transmitting hole, and a thickness gauge. The light source box is fixed to one end of the detection stage, the light-transmitting hole is opened at the lower side of the light source box, and the thickness gauge is placed on the detection stage.
[0007] The material feeding assembly includes a feeding hole, a guide, and a pusher. The feeding hole is located in the middle of the testing table. One end of the pusher is fixed below the testing table surface. The guide is installed below the testing table surface and includes a first fixed plate, a rotating shaft, a torsion spring, and a guide box. The first fixed plate is fixed at both ends below the testing table surface. One end of the rotating shaft is rotatably connected to the first fixed plate, and the other end is fixed to the side of the guide box. The upper opening of the guide box is located directly below the feeding hole. The torsion spring is sleeved on the rotating shaft, with one end fixed to the side of the first fixed plate and the other end fixed to the side of the guide box.
[0008] Further, the pusher includes a U-shaped support frame, a first push plate, a connecting plate, and a second push plate. The U-shaped support frame is fixed below the tabletop of the inspection table. The first push plate is inserted into the U-shaped support frame. The connecting plate is fixed to one end of the first push plate. The second push plate is fixed to the other end of the connecting plate, and the other end of the second push plate is movably connected to the outer side of the material guiding box.
[0009] Further, the detection component further includes a good product box and a defective material box. The good product box and the defective material box are placed below the inspection table, and the defective material box is located inside.
[0010] Further, the lower end opening of the material guiding box is movably connected above the good product box and the defective material box.
[0011] Further, the tabletop of the inspection table is made of black marble. An LED lamp tube is installed inside the light source box, and the inner wall of the light source box is silver-white.
[0012] Further, it further includes a falling prevention component. The falling prevention component includes an L-shaped guiding plate, a spring column, and a limiting plate. The L-shaped guiding plate is fixed on the tabletop of the inspection table. The spring column is fixed on the inspection table and is located between the two L-shaped guiding plates. One end of the limiting plate is fixed on the movable end of the spring column.
[0013] Further, the falling prevention component further includes a second fixing plate and a collision prevention pad. The second fixing plate is fixed to one end of the L-shaped guiding plate, and the fixed end of the spring column is fixed to the second fixing plate. The collision prevention pad is wrapped around the other end of the limiting plate away from the spring column.
[0014] The utility model has the following beneficial effects:
[0015] In the utility model, through the arranged blanking component, after the bar is detected, if it is a qualified product, one hand pulls the bar to the blanking hole and makes it slide down along the material guiding box, while the other hand holds the first push plate to prevent it from moving until the bar falls into the good product box below. If the bar is unqualified, one hand pulls the bar to the blanking hole and makes it slide down along the material guiding box, and the other hand pushes the first push plate along the U-shaped support frame to drive the second push plate below the connecting plate to push the material guiding box, driving the rotation of the rotating shafts at both ends of the material guiding box, moving the lower end of the material guiding box above the defective material box, and the defective product falls into the defective material box. Then release the hand on the first push plate, and under the action of the torsion spring, the material guiding box resets. This setting can quickly classify and place the bars and reduce the damage to the bars. Description of the Drawings
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the 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.
[0017] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the pushing component structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the guide component structure of this utility model;
[0021] Figure 5 This is a schematic diagram of the anti-fall component structure of this utility model.
[0022] The attached diagram lists the components represented by each number as follows:
[0023] 10. Inspection table; 11. Light source box; 12. Light transmission hole; 13. Thickness gauge; 14. Good product box; 15. Defective material box; 20. Material drop hole; 21. First fixing plate; 22. Rotating shaft; 23. Torsion spring; 24. Guide box; 25. U-shaped support frame; 26. First push plate; 27. Connecting plate; 28. Second push plate; 30. L-shaped guide plate; 31. Second fixing plate; 32. Spring column; 33. Limiting plate; 34. Anti-collision pad. Detailed Implementation
[0024] 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.
[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0026] Please see Figure 1-4 As shown, this utility model is a rod bending degree detection device, comprising:
[0027] The testing assembly includes a testing stage 10, a light source box 11, a light transmission hole 12, and a thickness gauge 13. The light source box 11 is fixed to one end of the testing stage 10, the light transmission hole 12 is opened at the lower side of the light source box 11, and the thickness gauge 13 is placed on the testing stage 10.
[0028] The inspection assembly also includes a good product box 14 and a defective material box 15, which are placed below the inspection table 10, with the defective material box 15 located on the inside.
[0029] The testing table 10 has a black marble surface, and the light source box 11 is equipped with LED tubes. The inner wall of the light source box 11 is silver-white.
[0030] The testing platform 10 provides a testing platform with a black marble surface for better observation of light transmission during testing. The interior of the light source box 11 is painted silver-white to increase light reflection. The installed LED tubes are connected to an external power source via a power cord. The light transmission hole 12 allows light to pass through the light source box 11. The thickness gauge 13 is used to check whether the thickness of the light-transmitting part of the bar is up to standard. The good product box 14 is used to place qualified products, and the defective material box 15 is used to place unqualified products.
[0031] The material feeding assembly includes a feeding hole 20, a guide member, and a pusher member. The feeding hole 20 is located in the middle of the inspection table 10. One end of the pusher member is fixed below the table surface of the inspection table 10. The guide member is installed below the table surface of the inspection table 10 and includes a first fixing plate 21, a rotating shaft 22, a torsion spring 23, and a guide box 24. The first fixing plate 21 is fixed at both ends below the table surface of the inspection table 10. One end of the rotating shaft 22 is rotatably connected to the first fixing plate 21, and the other end is fixed to the side of the guide box 24. The upper opening of the guide box 24 is located directly below the feeding hole 20. The torsion spring 23 is sleeved on the rotating shaft 22, and one end is fixed to the side of the first fixing plate 21, and the other end is fixed to the side of the guide box 24.
[0032] The pusher includes a U-shaped support frame 25, a first push plate 26, a connecting plate 27, and a second push plate 28. The U-shaped support frame 25 is fixed below the table surface of the testing table 10. The first push plate 26 is inserted into the U-shaped support frame 25. The connecting plate 27 is fixed at one end of the first push plate 26, and the second push plate 28 is fixed at the other end of the connecting plate 27. The other end of the second push plate 28 is movably connected to the outer side of the guide box 24.
[0033] The lower opening of the guide box 24 is movably connected above the good product box 14 and the defective material box 15.
[0034] The material discharge hole 20 is used for material discharge, the first fixed plate 21 provides support, the rotating shaft 22 facilitates the rotation of the guide box 24, the torsion spring 23 has a reset function, the guide box 24 provides guidance, the U-shaped support frame 25 provides support, the first push plate 26 facilitates hand operation, the connecting plate 27 provides connection, and the second push plate 28 is used to push the guide box 24.
[0035] Working principle:
[0036] After the bar stock inspection is completed, if it is a qualified product, pull the bar stock to the discharge hole 20 with one hand, allowing it to slide down along the guide box 24, while holding the first push plate 26 with the other hand to prevent it from moving, until the bar stock falls into the good product box 14 below. If the bar stock is a defective product, pull the bar stock to the discharge hole 20 with one hand, allowing it to slide down along the guide box 24, while pushing the first push plate 26 along the U-shaped support frame 25 with the other hand, causing the second push plate 28 below the connecting plate 27 to push the guide box 24, causing the rotating shafts 22 at both ends of the guide box 24 to rotate, moving the lower end of the guide box 24 above the defective material box 15, and the defective product falls into the defective material box 15. Release the hand on the first push plate 26, and the guide box 24 will reset under the action of the torsion spring 23.
[0037] This step allows for quick sorting and placement of the bars, while minimizing damage to them.
[0038] Please see Figure 5 As shown, this embodiment, based on the above embodiment, further includes:
[0039] The anti-fall component includes an L-shaped guide plate 30, a spring column 32, and a limiting plate 33. The L-shaped guide plate 30 is fixed on the table surface of the detection table 10, the spring column 32 is fixed on the detection table 10 and located between the two L-shaped guide plates 30, and one end of the limiting plate 33 is fixed on the movable end of the spring column 32.
[0040] The anti-fall assembly also includes a second fixing plate 31 and an anti-collision pad 34. The second fixing plate 31 is fixed to one end of the L-shaped guide plate 30, and the fixed end of the spring column 32 is fixed on the second fixing plate 31. The anti-collision pad 34 is wrapped around the other end of the limiting plate 33 away from the spring column 32.
[0041] The L-shaped guide plate 30 serves as a limit, the second fixing plate 31 serves as a fixing, the spring column 32 has a telescopic function, the limiting plate 33 serves as a limit, and the anti-collision pad 34 prevents damage to the bar.
[0042] Working principle:
[0043] Place the bar on the inspection table 10, turn on the LED light in the light source box 11, and let the light shine through the light transmission hole 12. While rotating the bar, insert the thickness gauge 13 from below the bar with abundant light to check whether the gap below the bar is within the acceptable range. If the gap is too large, it is unacceptable. Push the first push plate 26 with one hand to rotate the bottom of the guide box 24 to the top of the defective material box 15. Pull the bar with the other hand to move it to the drop hole 20. The bar pushes the anti-collision pad 34 on the limit plate 33, which moves the limit plate 33 along the L-shaped guide plate 30. The spring column 32 is compressed, which opens the drop hole 20 below the limit plate 33. The bar falls down and falls into the defective material box 15 along the guide box 24. Otherwise, it falls into the good product box 14.
[0044] This step prevents the bar from accidentally falling into the discharge hole 20 during the bar rotation process.
[0045] 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 the specific implementations described. 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 device for detecting the bending degree of bars, characterized in that, include: The detection assembly includes a detection stage (10), a light source box (11), a light transmission hole (12), and a thickness gauge (13). The light source box (11) is fixed at one end of the detection stage (10), the light transmission hole (12) is opened at the lower side of the light source box (11), and the thickness gauge (13) is placed on the detection stage (10). The material feeding assembly includes a material feeding hole (20), a guide and a pusher. The material feeding hole (20) is opened in the middle of the testing table (10). One end of the pusher is fixed below the table surface of the testing table (10). The guide is installed below the table surface of the testing table (10) and includes a first fixing plate (21), a rotating shaft (22), a torsion spring (23) and a guide box (24). The first fixing plate (21) is fixed at both ends below the table surface of the testing table (10). One end of the rotating shaft (22) is rotatably connected to the first fixing plate (21), and the other end is fixed to the side of the guide box (24). The upper opening of the guide box (24) is located directly below the material feeding hole (20). The torsion spring (23) is sleeved on the rotating shaft (22), and one end is fixed to the side of the first fixing plate (21), and the other end is fixed to the side of the guide box (24).
2. The rod bending detection device according to claim 1, characterized in that: The pusher includes a U-shaped support frame (25), a first push plate (26), a connecting plate (27), and a second push plate (28). The U-shaped support frame (25) is fixed below the test table (10). The first push plate (26) is inserted into the U-shaped support frame (25). The connecting plate (27) is fixed at one end of the first push plate (26). The second push plate (28) is fixed at the other end of the connecting plate (27), and the other end of the second push plate (28) is movably connected to the outer side of the guide box (24).
3. The rod bending detection device according to claim 1, characterized in that: The testing assembly also includes a good product box (14) and a defective material box (15), which are placed below the testing table (10), with the defective material box (15) located on the inside.
4. The rod bending detection device according to claim 1, characterized in that: The lower opening of the guide box (24) is movably connected above the good product box (14) and the defective material box (15).
5. The rod bending detection device according to claim 1, characterized in that: The testing platform (10) has a black marble surface, and the light source box (11) is equipped with LED tubes. The inner wall of the light source box (11) is silver-white.
6. The rod bending detection device according to claim 1, characterized in that: It also includes a fall prevention component, which includes an L-shaped guide plate (30), a spring column (32) and a limiting plate (33). The L-shaped guide plate (30) is fixed on the table surface of the testing table (10), the spring column (32) is fixed on the testing table (10) and located between the two L-shaped guide plates (30), and one end of the limiting plate (33) is fixed on the movable end of the spring column (32).
7. The bar bending detection device according to claim 6, characterized in that: The anti-fall assembly also includes a second fixing plate (31) and an anti-collision pad (34). The second fixing plate (31) is fixed to one end of the L-shaped guide plate (30), and the fixed end of the spring column (32) is fixed on the second fixing plate (31). The anti-collision pad (34) is wrapped around the other end of the limiting plate (33) away from the spring column (32).