A strip steel surface cleaning quality detection device

Abstract

The present application relates to strip steel technical field, especially point to a kind of strip steel surface cleaning quality detection device;Including detection car;The lower end surface of the detection car around place is fixedly installed with support frame;Each support frame is rotatably connected with driving wheel, and one driving wheel is connected with external control motor output end by rotating rod;The upper end surface of the detection car is provided with distance sensor;The inside of the detection car is opened with through slot in middle side, and pressure column is slidably installed in through slot;The upper end surface of the detection car and the upper end of pressure column are fixedly connected with cylinder;The telescopic end of the cylinder is connected with the upper end surface of pressure column;Driving wheel drives detection car and detection paper to move in the end surface of strip steel, when distance sensor shows to reach standard 10M, stop detection car moving, and take away trolley to make wheel to leave strip steel surface, compare stain residual condition of detection paper with standard, to analyze the cleaning effect of cleaning section at this time.

Description

Technical Field

[0001] This invention relates to the field of strip steel technology, and in particular to a strip steel surface cleaning quality inspection device. Background Technology

[0002] Steel strip, also known as steel strip, is a common intermediate component in industrial production. It is primarily produced by various steel rolling mills to meet the needs of different industrial sectors in the industrialized production of various metal or mechanical products. Finished steel strip is generally supplied in coils. Due to its advantages such as high dimensional accuracy, good surface quality, ease of processing, and material saving, it is widely used in the manufacture of welded pipes, clamps, washers, spring sheets, saw blades, and cutting blades.

[0003] Continuous annealing lines all have cleaning sections, primarily used to remove rolling oil, ferric oxide, ferric oxide, ferrous oxide, and other impurities from the surface of the strip. During production, workers use wiping paper to touch the strip after it has passed through the cleaning section, and by observing the residue on the wiping paper, they determine the cleaning effectiveness of the strip as it passes through the cleaning section.

[0004] However, it is difficult for each person to control the force used when wiping consistently. Even with the same belt speed and wiping time, the wiping results vary, making it impossible to accurately judge the cleaning effect of the cleaning section. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the fact that the force used during wiping in the prior art cannot be well controlled and consistent. Even under the same belt speed and wiping time, the wiping effect is different, and it is impossible to correctly judge the cleaning effect of the cleaning section.

[0006] To solve the above technical problems, the present invention provides a strip steel surface cleaning quality inspection device, including an inspection cart; support frames are fixedly installed around the lower end face of the inspection cart; each support frame is rotatably connected to a drive wheel, one of which is connected to the output end of an external control motor via a rotating rod; a distance sensor is provided on the upper end face of the inspection cart; a through groove is opened on the center side of the interior of the inspection cart, and a pressure column is slidably installed in the through groove; a cylinder is fixedly connected to the upper end face of the inspection cart above the pressure column; the telescopic end of the cylinder is connected to the upper end face of the pressure column; a pressure sensor is provided inside the pressure column; and a detection paper is provided at the bottom of the pressure column; during operation... The test paper is pasted on the bottom of the pressure column, and the test carriage is placed above the strip steel. At this time, the drive wheel of the test carriage is in a braking state. Then, the cylinder is controlled to move the pressure column and the test paper towards the end face of the strip steel, where they come into contact with the end face of the strip steel and generate an interaction force. When the pressure sensor value inside the pressure column reaches 4KN, the cylinder movement is stopped, and the drive wheel is controlled to move. The drive wheel moves the test carriage and the test paper towards the end face of the strip steel. When the distance sensor shows that the standard of 10M has been reached, the movement of the test carriage is stopped, and the carriage is removed so that the wheels leave the surface of the strip steel. The stain residue on the test paper is compared with the standard to analyze the cleaning effect of the cleaning section at this time.

[0007] In one embodiment of the present invention, the interior of the testing vehicle has two slots, which are symmetrically arranged relative to the pressure column. Two elastic seats are fixed to the outer circumference of the pressure column. Springs are provided on the surface of the elastic seats. The elastic seats on the side away from the pressure column are arc-shaped. The diameter of the pressure column is smaller than the diameter of the through slot. In the initial state, the elastic seats are not in contact with the slots. When the pressure column moves downward, it will simultaneously drive the elastic seats on both sides to move closer to the slots. When the pressure sensor value inside the pressure column reaches 4KN, the elastic seats are just locked in the slots, fixing the pressure column and ensuring the stability of the pressure column when moving the test paper, ensuring that the force of each test paper wiping is consistent with the established standard.

[0008] In one embodiment of the present invention, a through groove is provided inside the pressure column; a limiting column is slidably connected inside the through groove; a retaining ring is slidably installed on the lower side of the bottom of the limiting column; an electric telescopic rod is connected to the top of the limiting column; the top end of the electric telescopic rod is fixedly connected to a bracket outside the cylinder; a sliding groove is provided on the outer circumferential surface of the limiting column; the retaining ring is slidably connected in the sliding groove through a sliding rod; the test paper is adhered to the outer circumferential surface of the retaining ring; during operation, after a test is completed, the limiting column is moved upward by controlling the electric telescopic rod, and the limiting column will move away from the through groove. When the limiting column is completely disengaged from the through groove, the operator pushes the retaining ring downward, causing the retaining ring to move the test paper along the inside of the sliding groove, so that the retaining ring is disengaged from the sliding groove. Then the test paper adhered to the outer circumferential surface of the retaining ring can be taken out and compared with the standard, avoiding the problem that the test paper is directly adhered to the bottom of the limiting column, making it difficult to remove.

[0009] In one embodiment of the present invention, the shape of the upper sliding rod of the retaining ring is adapted to the shape of the first sliding groove; a wrapping ball is fixedly connected to the bottom of the limiting post; the upper side of the detection paper is bonded to the outer peripheral surface of the retaining ring, and the lower side is wrapped around the spherical surface of the wrapping ball; during operation, the detection paper is wrapped around the spherical surface of the wrapping ball, which facilitates the contact between the detection paper and the surface of the strip steel, and is beneficial for the detection paper to detect the residual stains on the surface of the strip steel. Moreover, since the wrapping ball is fixed to the bottom of the limiting post, and the retaining ring is slidably connected to the outer peripheral surface of the limiting post, when the retaining ring is released along the first sliding groove, the retaining ring can peel the detection paper from the spherical surface of the wrapping ball, which is beneficial for the comparison of the detection paper. At the same time, when replacing the new detection paper, it is only necessary to bond it to the spherical surface of the wrapping ball and the surface of the retaining ring, which is more convenient to use.

[0010] In one embodiment of the present invention, a sliding groove II is provided on the inner wall of the pressure column near the embedding groove; multiple sliding groove IIs are provided, and each sliding groove II corresponds to the embedding groove one-to-one; a push column is slidably connected in each sliding groove II; a linkage frame is fixedly connected to the end face of the push column near the flat plate, and the linkage frame will contact the end face of the flat plate during movement; multiple rectangular rods are fixedly connected to the outer peripheral surface of the limiting column; when the rectangular rods move downward, they will contact the surface of the push column; during operation, the limiting column drives the detection paper to press against the belt When the strip is in contact with the steel surface, the limiting post will simultaneously drive the rectangular rod to move. As the rectangular rod moves, it will contact the surface of the push post and drive the push post and the linkage frame to move. When the linkage frame moves, its side end will contact the end face of the flat plate and squeeze the flat plate, causing the flat plate to rotate a certain angle towards the side closer to the test paper. Subsequently, the flat plates at different positions will press on the outside of the test paper, giving the test paper sufficient pressure to avoid the test paper being subjected to excessive friction when in contact with the steel strip surface, which could cause it to detach. This ensures normal quality inspection of the steel strip surface.

[0011] In one embodiment of the present invention, the flat plate is rotatably connected to the embedded groove via a rotating shaft; a torsion spring is provided at the contact position of the flat plate with the rotating shaft; a hole groove adapted to the torsion spring is provided in the flat plate; when the flat plate rotates, it will simultaneously drive the torsion spring to contract; when the linkage frame moves away from the flat plate, the flat plate will move away from the detection paper, so as to prevent the flat plate from affecting the movement of the detection paper when the detection paper moves upward.

[0012] In one embodiment of the present invention, an elastic rod is fixedly connected inside the second slide groove. The top of the elastic rod is fixedly connected to the inner wall of the second slide groove, and the bottom is fixedly connected to the upper end face of the push column. During operation, the elastic rod facilitates the movement of the push column, thereby making it easier for the push column to drive the linkage frame to move, and causing the linkage frame to drive the flat plate to rotate.

[0013] In one embodiment of the present invention, a rubber sleeve is fitted onto the side of the smoothing plate near the test paper, and the surface of the rubber sleeve is provided with multiple friction textures; the rubber sleeve on the surface of the smoothing plate increases the friction when the smoothing plate contacts the test paper.

[0014] In one embodiment of the present invention, the bottom of the pressure column is provided with a plurality of embedded grooves, and a smoothing plate is rotatably connected in each embedded groove; the bottom end of the smoothing plate faces the side of the wrapping ball; during operation, the smoothing plate provided on the outside of the wrapping ball can smooth and fix the detection paper on its surface to a certain extent, so as to avoid the problem that the detection paper will detach from the wrapping ball due to the large friction when it moves along the surface of the strip steel.

[0015] In one embodiment of the present invention, a handle is fixedly connected to the upper end surface of the inspection vehicle; the outer surface of the handle is provided with a rubber pad, and the handle facilitates the lifting of the inspection vehicle.

[0016] The technical solution of the present invention has the following advantages over the prior art:

[0017] The present invention discloses a strip steel surface cleaning quality inspection device, which drives the inspection carriage 1 and the inspection paper 401 to move on the end face of the strip steel via the drive wheel 201. When the distance sensor 3 displays that the standard of 10M has been reached, the inspection carriage 1 stops moving and the carriage is removed so that the wheels leave the strip steel surface. The residual stains on the inspection paper 401 are compared with the standard to analyze the cleaning effect of the cleaning section at this time. This design can eliminate the influence of each wiping force, time and belt speed, and meet the conditions of comparative analysis method.

[0018] The present invention discloses a strip steel surface cleaning quality inspection device. By wrapping the inspection paper around the spherical surface of the wrapping ball, the inspection paper can easily contact the surface of the strip steel, which is beneficial for the inspection paper to detect the residual stains on the surface of the strip steel. Moreover, the wrapping ball is fixed to the bottom of the limiting post, and the retaining ring is slidably connected to the outer circumference of the limiting post. Therefore, when the retaining ring is released along the sliding groove, the retaining ring can peel the inspection paper from the spherical surface of the wrapping ball, which is beneficial for comparison of the inspection paper. At the same time, when replacing the inspection paper, it is only necessary to stick it to the spherical surface of the wrapping ball and the surface of the retaining ring, which is convenient to use.

[0019] The strip steel surface cleaning quality inspection device of the present invention uses a linkage frame that, when moving, has its side end contact with the end face of the flat plate and squeezes the flat plate, causing the flat plate to rotate a certain angle toward the side closer to the test paper. Subsequently, the flat plates at different positions press on the outside of the test paper, giving the test paper sufficient pressure, avoiding the problem of excessive friction on the test paper when it comes into contact with the strip steel surface, which could cause it to detach, thus ensuring normal quality inspection of the strip steel surface. Attached Figure Description

[0020] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the pressure column structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the vehicle being tested according to the present invention;

[0024] Figure 4 This is a schematic diagram of the pressure column structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the pressure column of the present invention;

[0026] Figure 6 This is a schematic diagram of the limiting post structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the detection paper structure of the present invention;

[0028] Figure 8 In this invention Figure 7 Enlarged view of the structure at point A;

[0029] Figure 9 This is a schematic diagram of the flat plate part of the present invention;

[0030] Figure 10 In this invention Figure 9 Enlarged view of the structure at point B;

[0031] Figure 11 This is a schematic diagram of the handle structure in the second embodiment of the present invention.

[0032] Explanation of reference numerals in the instruction manual's attached drawings: 1. Inspection vehicle; 101. Cylinder; 2. Support frame; 201. Drive wheel; 3. Distance sensor; 4. Pressure column; 401. Inspection paper; 5. Slot; 6. Elastic seat; 7. Through slot; 8. Limiting column; 801. Snap ring; 9. Electric telescopic rod one; 10. Slide one; 11. Encasing ball; 12. Embedded slot; 13. Flat plate; 131. Rotating shaft; 132. Torsion spring; 14. Slide two; 15. Push column; 16. Linkage frame; 17. Rectangular rod; 18. Elastic rod; 19. Handle. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention. Example 1

[0034] Reference Figures 1 to 10 As shown in the figure, an embodiment of the present invention provides a strip steel surface cleaning quality inspection device, comprising an inspection vehicle 1; a support frame 2 is fixedly installed around the lower end face of the inspection vehicle 1; each support frame 2 is rotatably connected to a drive wheel 201, one of which is connected to the output end of an external control motor via a rotating rod; a distance sensor 3 is provided on the upper end face of the inspection vehicle 1; a through groove is provided on the center side of the interior of the inspection vehicle 1, and a pressure column 4 is slidably installed in the through groove; a cylinder 101 is fixedly connected to the upper end face of the inspection vehicle 1 above the pressure column 4; the telescopic end of the cylinder 101 is connected to the upper end face of the pressure column 4, a pressure sensor is provided inside the pressure column 4, and a test paper 401 is provided at the bottom of the pressure column 4;

[0035] Continuous annealing lines all have cleaning sections, mainly used to clean rolling oil, ferric oxide, ferric oxide, ferrous oxide, etc. from the surface of the strip steel. During production, production personnel use wiping paper to touch the strip steel after it has passed through the cleaning section. By observing the amount of dirt residue on the surface of the wiping paper, they can judge the cleaning effect of the strip steel passing through the cleaning section. However, it is difficult for each person to control the force used when wiping very well. Even with the same roll, the same speed, and the same wiping time, the wiping effect is different, making it impossible to accurately judge the cleaning effect of the cleaning section.

[0036] During operation, the test paper 401 is attached to the bottom of the pressure column 4, and the test carriage 1 is placed above the strip steel. At this time, the drive wheel 201 of the test carriage 1 is in a braking state. Then, the cylinder 101 is controlled to move the pressure column 4 and the test paper 401 towards the end face of the strip steel, where they come into contact with the end face of the strip steel and generate an interaction force. When the pressure sensor value inside the pressure column 4 reaches 4KN, the cylinder 101 stops moving, and the drive wheel 201 is controlled to move. The drive wheel 201 moves the test carriage 1 and the test paper 401 towards the end face of the strip steel. When the distance sensor 3 displays a standard of 10M, the test carriage 1 stops moving, and the carriage is removed so that the wheels leave the surface of the strip steel. The stain residue on the test paper 401 is compared with the standard to analyze the cleaning effect of the cleaning section at this time. This design can eliminate the influence of each wiping force, time, and belt speed, thus meeting the conditions for comparative analysis.

[0037] The testing vehicle 1 has two slots 5 inside, which are symmetrically arranged with respect to the pressure column 4. Two elastic seats 6 are fixed to the outer circumference of the pressure column 4. The surface of the elastic seat 6 is provided with a spring. The shape of the elastic seat 6 away from the pressure column 4 is arc-shaped. The diameter of the pressure column 4 is smaller than the diameter of the through groove. In the initial state, the elastic seats 6 are not in contact with the slots 5. When the pressure column 4 moves downward, the pressure column 4 will simultaneously drive the elastic seats 6 on both sides to move closer to the slots 5. When the pressure sensor value inside the pressure column 4 reaches 4KN, the elastic seats 6 are just locked in the slots 5, fixing the pressure column 4 and ensuring the stability of the pressure column 4 when moving the test paper 401, ensuring that the force of each wipe of the test paper 401 is consistent with the established standard.

[0038] The pressure column 4 has a through groove 7; a limiting column 8 is slidably connected in the through groove 7; a retaining ring 801 is slidably installed on the lower side of the bottom of the limiting column 8; an electric telescopic rod 9 is connected to the top of the limiting column 8; the top of the electric telescopic rod 9 is fixedly connected to the bracket on the outside of the cylinder 101; a sliding groove 10 is formed on the outer circumferential surface of the limiting column 8; the retaining ring 801 is slidably connected in the sliding groove 10 through a sliding rod; the detection paper 401 is bonded to the outer circumferential surface of the retaining ring 801.

[0039] During operation, after a test is completed, the limit post 8 is moved upward by controlling the electric telescopic rod 9. The limit post 8 will move away from the through groove 7. When the limit post 8 is completely disengaged from the through groove 7, the operator pushes the retaining ring 801 downward, causing the retaining ring 801 to move the test paper 401 along the inside of the slide groove 10, so that the retaining ring 801 is disengaged from the slide groove 10. Then the test paper 401 that is attached to the outer circumference of the retaining ring 801 can be taken out and compared with the standard, avoiding the problem that the test paper 401 is directly attached to the bottom of the limit post 8, making it difficult to remove.

[0040] The shape of the slide bar above the retaining ring 801 is adapted to the shape of the slide groove 10; the bottom of the limiting post 8 is fixedly connected to the wrapping ball 11; the upper side of the detection paper 401 is bonded to the outer peripheral surface of the retaining ring 801, and the lower side is wrapped around the spherical surface of the wrapping ball 11.

[0041] During operation, the test paper 401 is wrapped around the spherical surface of the wrapping ball 11, which facilitates contact between the test paper 401 and the surface of the strip steel. This is beneficial for the test paper 401 to detect any residual dirt on the surface of the strip steel. Moreover, the wrapping ball 11 is fixed to the bottom of the limiting post 8, while the retaining ring 801 is slidably connected to the outer circumference of the limiting post 8. Therefore, when the retaining ring 801 is released along the sliding groove 10, it can peel the test paper 401 off the spherical surface of the wrapping ball 11, which is beneficial for comparison of the test paper 401. At the same time, when replacing the test paper 401, it is only necessary to stick it to the spherical surface of the wrapping ball 11 and the surface of the retaining ring 801, which is quite convenient to use.

[0042] The bottom of the pressure column 4 is provided with multiple embedding grooves 12, and each embedding groove 12 is rotatably connected to a smoothing plate 13; the bottom end of the smoothing plate 13 faces the side of the wrapping ball 11; during operation, the smoothing plate 13 set on the outside of the wrapping ball 11 can smooth and fix the test paper 401 on its spherical surface, so as to avoid the problem that the test paper 401 will detach from the wrapping ball 11 due to the large friction when it moves along the strip steel surface.

[0043] The inner wall of the pressure column 4 is provided with a sliding groove 14 near the embedding groove 12; multiple sliding grooves 14 are provided, and each sliding groove 14 corresponds to the embedding groove 12; a push column 15 is slidably connected in each sliding groove 14; a linkage frame 16 is fixedly connected to the end face of the push column 15 near the flat plate 13, and the linkage frame 16 will contact the end face of the flat plate 13 during movement; multiple rectangular rods 17 are fixedly connected to the outer peripheral surface of the limiting column 8; when the rectangular rods 17 move downward, they will contact the surface of the push column 15.

[0044] During operation, when the limiting post 8 presses the test paper 401 against the strip surface, the limiting post 8 simultaneously moves the rectangular rod 17. As the rectangular rod 17 moves, it contacts the surface of the push post 15, causing the push post 15 and the linkage frame 16 to move. As the linkage frame 16 moves, its side end contacts the end face of the smoothing plate 13, squeezing the smoothing plate 13 and causing it to rotate a certain angle towards the side closer to the test paper 401. Subsequently, the smoothing plates 13 at different positions press against the outer side of the test paper 401, providing sufficient pressure to the test paper 401. This prevents the test paper 401 from being subjected to excessive friction when in contact with the strip surface, thus ensuring normal quality inspection of the strip surface.

[0045] The flat plate 13 is rotatably connected to the embedded groove 12 via a rotating shaft 131; a torsion spring 132 is provided at the contact position of the flat plate 13 with the rotating shaft 131; a hole groove adapted to the torsion spring 132 is provided in the flat plate 13; when the flat plate 13 rotates, it will simultaneously drive the torsion spring 132 to retract; when the linkage frame 16 moves away from the flat plate 13, the flat plate 13 will move away from the detection paper 401, so as to prevent the flat plate 13 from affecting the movement of the detection paper 401 when it moves upward.

[0046] An elastic rod 18 is fixedly connected inside the second slide groove 14. The top of the elastic rod 18 is fixedly connected to the inner wall of the second slide groove 14, and the bottom is fixedly connected to the upper end face of the push column 15. During operation, the elastic rod 18 is provided to facilitate the movement of the push column 15, thereby making it easier for the push column 15 to drive the linkage frame 16 to move, so that the linkage frame 16 drives the flat plate 13 to rotate.

[0047] A rubber sleeve is fitted onto the side of the smoothing plate 13 closest to the test paper 401, and the surface of the rubber sleeve is provided with multiple friction textures; the rubber sleeve on the surface of the smoothing plate 13 increases the friction when the smoothing plate 13 contacts the test paper 401. Example 2

[0048] Reference Figure 11 As shown in the first embodiment, another embodiment of the present invention is as follows: a handle 19 is fixedly connected to the upper end surface of the inspection vehicle 1; a rubber pad is provided on the outer surface of the handle 19, and the handle 19 is provided to facilitate lifting the inspection vehicle 1.

[0049] During operation, the test paper 401 is pasted on the bottom of the pressure column 4, and the test carriage 1 is placed above the strip steel. At this time, the drive wheel 201 of the test carriage 1 is in a braking state. Then, the cylinder 101 is controlled so that the extension end of the cylinder 101 drives the pressure column 4 and the test paper 401 to move towards the end face of the strip steel, contact the end face of the strip steel and generate an interaction force. When the pressure sensor value inside the pressure column 4 reaches 4KN, the cylinder 101 stops moving and the drive wheel 201 is controlled to move. At this time, the elastic seat 6 is just locked in the slot 5 to fix the pressure column 4, ensuring the stability of the pressure column 4 when it drives the test paper 401 to move, and ensuring that the force of each wipe by the test paper 401 is consistent with the standard.

[0050] The test paper 401 is wrapped around the spherical surface of the wrapping ball 11, which facilitates the contact between the test paper 401 and the surface of the strip steel. This is beneficial for the test paper 401 to detect the residual dirt on the surface of the strip steel. Moreover, the wrapping ball 11 is fixed to the bottom of the limiting post 8, while the retaining ring 801 is slidably connected to the outer circumference of the limiting post 8. Therefore, when the retaining ring 801 is released along the slide groove 10, the retaining ring 801 can peel the test paper 401 from the spherical surface of the wrapping ball 11, which is beneficial for the comparison of the test paper 401. At the same time, when replacing the test paper 401, it is only necessary to stick it to the spherical surface of the wrapping ball 11 and the surface of the retaining ring 801, which is convenient to use.

[0051] When the limiting post 8 presses the test paper 401 against the strip surface, the limiting post 8 will simultaneously move the rectangular rod 17. When the rectangular rod 17 moves, it will contact the surface of the push post 15 and move the push post 15 and the linkage frame 16. When the linkage frame 16 moves, its side end will contact the end face of the flat plate 13 and squeeze the flat plate 13, causing the flat plate 13 to rotate a certain angle towards the side closer to the test paper 401. Subsequently, the flat plate 13 at different positions will press on the outside of the test paper 401, giving the test paper 401 sufficient pressure to avoid the test paper 401 being subjected to excessive friction when in contact with the strip surface, which could cause it to detach. This ensures normal quality inspection of the strip surface. When the flat plate 13 rotates, it will simultaneously cause the torsion spring 132 to contract. When the linkage frame 16 moves away from the flat plate 13, the flat plate 13 will move away from the test paper 401, preventing the flat plate 13 from affecting the movement of the test paper 401 when it moves upward.

[0052] The drive wheel 201 drives the inspection carriage 1 and the inspection paper 401 to move on the end face of the strip. When the distance sensor 3 shows that the standard of 10M has been reached, the inspection carriage 1 stops moving and the carriage is removed so that the wheels leave the surface of the strip. The stain residue of the inspection paper 401 is compared with the standard to analyze the cleaning effect of the cleaning section at this time.

[0053] After a test is completed, the limit post 8 is moved upward by controlling the electric telescopic rod 9. The limit post 8 will move away from the through groove 7. When the limit post 8 is completely disengaged from the through groove 7, the operator pushes the retaining ring 801 downward, so that the retaining ring 801 moves the test paper 401 along the inside of the slide groove 10, so that the retaining ring 801 is disengaged from the slide groove 10. Then the test paper 401 that is attached to the outer circumference of the retaining ring 801 can be taken out and compared with the standard to avoid the test paper 401 being directly attached to the bottom of the limit post 8, which would make it difficult to remove.

[0054] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A strip steel surface cleaning quality inspection device, comprising an inspection vehicle (1); characterized in that: A support frame (2) is fixedly installed around the lower end face of the testing vehicle (1); each support frame (2) is rotatably connected to a drive wheel (201), one of which is connected to the output end of an external control motor via a rotating rod; a distance sensor (3) is provided on the upper end face of the testing vehicle (1); a through groove is provided on the center side of the interior of the testing vehicle (1), and a pressure column (4) is slidably installed in the through groove; a cylinder (101) is fixedly connected to the upper end face of the testing vehicle (1) above the pressure column (4); the telescopic end of the cylinder (101) is connected to the upper end face of the pressure column (4), a pressure sensor is provided inside the pressure column (4), and a test paper (401) is provided at the bottom of the pressure column (4). The testing vehicle (1) has two slots (5) inside, which are symmetrically arranged with respect to the pressure column (4); two elastic seats (6) are fixed to the outer circumference of the pressure column (4); springs are provided on the surface of the elastic seats (6), and the side of the elastic seat (6) away from the pressure column (4) is arc-shaped, and the diameter of the pressure column (4) is smaller than the diameter of the through slot; The pressure column (4) has a through groove (7); a limiting column (8) is slidably connected in the through groove (7); a retaining ring (801) is slidably installed on the lower side of the bottom of the limiting column (8); an electric telescopic rod (9) is connected to the top of the limiting column (8); the top of the electric telescopic rod (9) is fixedly connected to the bracket on the outside of the cylinder (101); a sliding groove (10) is opened on the outer circumferential surface of the limiting column (8); the retaining ring (801) is slidably connected in the sliding groove (10) through a sliding rod; the detection paper (401) is bonded to the outer circumferential surface of the retaining ring (801); The shape of the slide bar above the retaining ring (801) is compatible with the shape of the slide groove (10); the bottom of the limiting post (8) is fixed with a wrapping ball (11); the upper side of the detection paper (401) is bonded to the outer peripheral surface of the retaining ring (801), and the lower side is wrapped around the spherical surface of the wrapping ball (11); The bottom of the pressure column (4) is provided with multiple embedding slots (12), and each embedding slot (12) is rotatably connected to a flat plate (13); the bottom end of the flat plate (13) faces the side of the wrapping ball (11); The inner wall of the pressure column (4) is provided with a sliding groove (14) on the side near the embedded groove (12); multiple sliding grooves (14) are provided, and each sliding groove (14) and the embedded groove (12) are provided in a one-to-one correspondence; a push column (15) is slidably connected in each sliding groove (14); a linkage frame (16) is fixedly connected to the end face of the push column (15) on the side near the flat plate (13), and the linkage frame (16) will contact the end face of the flat plate (13) during the movement; multiple rectangular rods (17) are fixedly connected to the outer peripheral surface of the limiting column (8); when the rectangular rods (17) move downward, they will contact the surface of the push column (15).

2. The strip steel surface cleaning quality inspection device according to claim 1, characterized in that: The flat plate (13) is rotatably connected to the embedded groove (12) via a rotating shaft (131); a torsion spring (132) is provided at the contact position of the rotating shaft (131) on the flat plate (13); and a hole groove adapted to the torsion spring (132) is provided inside the flat plate (13).

3. The strip steel surface cleaning quality inspection device according to claim 1, characterized in that: An elastic rod (18) is fixedly connected inside the second slide (14). The top of the elastic rod (18) is fixedly connected to the inner wall of the second slide (14), and the bottom is fixedly connected to the upper end face of the push column (15).

4. The strip steel surface cleaning quality inspection device according to claim 3, characterized in that: The flat plate (13) is fitted with a rubber sleeve on the side near the test paper (401), and the surface of the rubber sleeve is provided with multiple friction textures.

5. The strip steel surface cleaning quality inspection device according to claim 1, characterized in that: A handle (19) is fixed to the upper end of the testing vehicle (1); a rubber pad is provided on the outer surface of the handle (19).

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