Device for eliminating pits generated after strip surface straightening

Abstract

The utility model relates to a device for eliminating pits generated after strip surface straightening, which comprises a straightening machine, tension roller sets are respectively arranged on the feeding side and the discharging side of the straightening machine, a strip cleaning device is arranged on the feeding side of the straightening machine, and a strip surface blowing device is arranged on the feeding side of the straightening machine. A solvent oil spraying device is arranged at the end, close to the strip cleaning device, of the straightening machine, and a strip surface detection system is further arranged beside the tension roller set on the discharging side. The device for eliminating the pits generated after the strip surface is straightened is reasonable in design and convenient to use, colloidal particles attached to the strip surface can be removed when the strip passes through a straightening machine, the pits generated after the strip surface is straightened are eliminated, the strip surface quality is improved, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum material processing, in particular to a device for eliminating pits generated on the surface of a strip material after straightening. Background Art

[0002] Currently, aluminum strips often develop pits on their surface after being straightened in a straightening machine. This is primarily due to the tension rollers, typically made of rubber, installed on both the feed and discharge sides of the straightening machine. This speed difference between the aluminum strip and the tension rollers during transport creates friction between the strip and the rollers, which in turn creates rubber particles on the surface of the rollers. These particles adhere to the strip and, after passing through the straightening machine, are squeezed into the strip, creating pits. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a device for eliminating pits on the surface of a strip after straightening, thereby improving the surface quality of the strip and enhancing product quality.

[0004] The utility model adopts the following scheme: a device for eliminating pits generated on the surface of a strip after straightening, comprising a straightener, wherein tension roller groups are respectively provided on the feed side and the discharge side of the straightener, the feed side of the straightener is provided with a strip cleaning device, the feed side of the straightener is provided with a strip surface blowing device, a solvent oil injection device is provided on one end of the straightener close to the strip cleaning device, and a strip surface detection system is also provided next to the tension roller group on the discharge side.

[0005] Furthermore, the tension roller group includes at least two tension rollers, and a tension roller cleaning device is provided beside the tension roller.

[0006] Furthermore, the tension roller cleaning device includes a brush attached to the surface of the tension roller and a rubber particle collecting cover located above the brush, and an exhaust pipe is connected to the top of the rubber particle collecting cover.

[0007] Furthermore, the strip cleaning device includes a pair of cleaning rollers located on the upper and lower sides of the strip, and the cleaning rollers are wrapped with non-woven fabrics.

[0008] Furthermore, the solvent oil spraying device includes a plurality of oil spraying pipes distributed above and below the strip, and a plurality of nozzles are provided on the oil spraying pipes.

[0009] Furthermore, the strip surface blowing device includes a pair of blowing pipes located above and below the strip, and the blowing pipes are provided with air outlet holes for blowing obliquely toward one side of the straightening machine.

[0010] Furthermore, the strip surface detection system includes a frame, which is provided with multiple groups of LED light sources with different irradiation directions, and the frame is also provided with a high-speed camera for receiving light reflected by the LED light source; the high-speed camera is installed on a beam, and the two ends of the beam are connected to the frame through a first adjustment mechanism; the first adjustment mechanism includes an L-shaped connecting plate connected to the frame by a number of bolts A, and the transverse plate of the L-shaped connecting plate is provided with transverse long holes and vertical long holes adapted to the bolts, and a camera adjustment pad is sandwiched between the transverse plate of the L-shaped connecting plate and the frame.

[0011] Furthermore, the two ends of the beam are fixedly connected with connecting plates, and the vertical plate of the L-shaped connecting plate is connected to the connecting plate by bolts B. The connecting plate is provided with a plurality of first connecting holes evenly distributed along the circumference, and the vertical plate of the L-shaped connecting plate is provided with a first vertical long hole that can be aligned with the first connecting hole, and the bolt B passes through the first vertical long hole and the corresponding first connecting hole.

[0012] Furthermore, a second vertical long hole is opened in the middle of the vertical plate of the L-shaped connecting plate, and a connecting shaft passing through the second vertical long hole is fixedly connected to the center of the connecting plate, and the connecting shaft can rotate and move up and down in the second vertical long hole; a fixing ring located on the outer side of the connecting shaft is fixedly connected to the outer side of the vertical plate of the L-shaped connecting plate, and the upper and lower sides of the fixing ring are respectively threaded with limit bolts that press against the connecting shaft.

[0013] Compared with the existing technology, the utility model has the following beneficial effects: the device of the utility model for eliminating pits generated on the surface of the strip after straightening is reasonably designed and easy to use. It can remove the rubber particles attached to the surface of the strip when passing through the straightening machine, eliminate the pits generated on the surface of the strip after straightening, improve the surface quality of the strip, and improve the product quality.

[0014] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below through specific embodiments and related drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the tension roller cleaning device according to an embodiment of the present utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a strip cleaning device according to an embodiment of the present utility model;

[0018] Figure 4 This is a schematic diagram of the use state of the embodiment of the utility model;

[0019] Figure 5 It is a three-dimensional diagram of an embodiment of the utility model;

[0020] Figure 6 yes Figure 5 A in the middle is an enlarged schematic diagram;

[0021] Figure 7 yes Figure 4 The enlarged schematic diagram of point B in the middle;

[0022] Figure 8 yes Figure 4 Enlarged schematic diagram at point C in the middle;

[0023] Figure 9 This is a simplified working diagram of an embodiment of the utility model;

[0024] Figure 10 This is an optical principle diagram of an embodiment of the utility model;

[0025] Explanation of the numbers in the figure: 1-straightening machine, 2-tension roller group, 3-strip cleaning device, 301-cleaning roller, 302-non-woven fabric, 303-fixed frame, 304-roller seat, 305-locking bolt, 306-vertical screw, 307-fixed plate, 4-strip surface blowing device, 5-solvent oil injection device, 6-tension roller cleaning device, 7-brush, 8-colloid particle collection cover, 9-strip, 10-strip surface detection system, 100-frame, 200-LED light source, 300-high-speed camera, 400-beam, 410-connecting plate, 411- First connecting hole, 412-connecting axis, 500-first adjusting mechanism, 510-L-shaped connecting plate, 511-horizontal long hole, 512-vertical long hole, 513-first vertical long hole, 514-second vertical long hole, 515-fixing ring, 516-U-shaped groove, 520-camera adjustment pad, 530-limiting bolt, 540-limiting block, 600-second adjusting mechanism, 610-first bracket, 611-second connecting hole, 620-second bracket, 621-bolt E, 700-aluminum strip, 800-first protective frame, 900-second protective frame. DETAILED DESCRIPTION

[0026] It should be noted that the following detailed descriptions are exemplary and are 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.

[0027] 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.

[0028] like Figures 1-3 As shown, a device for eliminating pits generated on the surface of a strip after straightening includes a straightener 1. Tension roller groups 2 are respectively provided on the feed side and the discharge side of the straightener 1. A strip cleaning device 3 is provided on the feed side of the straightener 1. A strip surface blowing device 4 is provided on the feed side of the straightener 1. A solvent oil injection device 5 is provided on one end of the straightener 1 near the strip cleaning device. A strip surface detection system 10 is also provided next to the tension roller group on the discharge side. The strip surface cleaning device continuously cleans the strip surface as the strip moves, removing foreign matter such as colloid particles attached to the strip surface; the solvent oil spraying device continuously sprays solvent oil, which can be D40 solvent oil, on the strip surface while the strip is moving, forming an oil film on the strip surface and dissolving the colloid particles in the oil film; the strip surface blowing device blows air on the strip surface to clean the oil film containing colloid particles on the strip surface; the strip surface detection system: continuously records the strip surface through a high-pixel camera to accurately record defects on the strip surface.

[0029] In this embodiment, the tension roller group 2 includes at least two tension rollers, and a tension roller cleaning device 6 is provided beside the tension rollers.

[0030] In this embodiment, the tension roller cleaning device 6 includes a brush 7 attached to the surface of the tension roller and a rubber particle collecting cover 8 located on the upper side of the brush, and an exhaust pipe is connected to the top of the rubber particle collecting cover; the rubber particles on the surface of the tension roller are cleaned and dropped by the brush, and most of the rubber particles are sucked away by the negative pressure generated by the rubber particle collecting cover 8.

[0031] In this embodiment, the strip cleaning device 3 includes a pair of cleaning rollers 301 located on the upper and lower sides of the strip, and the cleaning rollers are wrapped with non-woven fabrics 302.

[0032] In this embodiment, the strip cleaning device 3 also includes a fixed frame 303 located on either side of the strip. The fixed frame is equipped with a control mechanism for controlling the raising and lowering of the cleaning rollers. This control mechanism includes roller seats 304 located at the ends of the cleaning rollers. The roller seats have a seat hole, into which the ends of the cleaning rollers extend and can rotate relative to the seat hole. The roller seats have threaded holes extending through the seat hole, and locking bolts 305 are connected to the threaded holes. Vertical screws 306 are connected to the roller seats, which extend through a fixing plate 307 fixed to the fixed frame. Adjustment nuts located on the upper and lower sides of the fixing plate 307 are threadedly connected to the vertical screws. The cleaning rollers 301 can be removed from the strip when not in use. When cleaning is required, the two cleaning rollers rest against the upper and lower surfaces of the strip. After a period of operation, the working position of the cleaning rollers can be adjusted by rotating the cleaning rollers (typically 90° at a time). After adjustment, the cleaning rollers are secured with locking bolts. The non-woven fabric covering the cleaning rollers can be replaced if it becomes dirty. In a specific implementation process, the cleaning roller can also be rotated by electric control, with a motor connected to the cleaning roller via a gear pair.

[0033] In this embodiment, the solvent oil injection device 5 includes a plurality of oil injection pipes distributed above and below the strip, and a plurality of nozzles are provided on the oil injection pipes.

[0034] In this embodiment, the strip surface blowing device 4 includes a pair of blowing pipes located above and below the strip, and the blowing pipes are provided with air outlets for blowing air obliquely toward one side of the straightener; the air outlets of the upper blowing pipes blow air obliquely downward, and the air outlets of the lower blowing pipes blow air obliquely upward, but both are inclined toward the straightener.

[0035] In this embodiment, the strip surface detection system 10 is as follows: Figures 3 to 10 As shown, a visual inspection device for the surface quality of aluminum strips includes a frame 100, on which are provided a plurality of groups of LED light sources 200 with different irradiation directions, and a high-speed camera 300 for receiving light reflected from the LED light source; the high-speed camera is mounted on a beam 400, and both ends of the beam are connected to the frame via a first adjustment mechanism 500. The present invention realizes multi-angle incident light by providing a plurality of groups of LED light sources 200, simulating the multi-angle observation of the human eye, thereby improving the defect recognition capability, enhancing the ability of visual equipment to detect material defects, improving the inspection level, and being able to effectively ensure product quality. In addition, a single field of view or multiple fields of view can be freely selected, making it flexible and convenient to use. LED light sources are relatively easy to wear out, and the hardware cost and maintenance cost of the structure with multiple light sources and fewer cameras are lower than the traditional structure with multiple cameras and fewer light sources.

[0036] In this embodiment, three groups of LED light sources 200 are provided: brightfield, darkfield, and sidefield. Multiple LED light sources at specific angles illuminate the surface of the aluminum strip, causing light reflections. A high-speed camera captures the target and converts it into an image signal. This image signal is processed and analyzed by an image processor, extracting defect feature values ​​based on distribution, brightness, size, color, and other information. An intelligent classifier converts the extracted defect feature values ​​into digital signals, performs computational processing, and refines defect classification. This utility model is directed to structural improvements and protections for visual inspection equipment. The visual inspection process described above is prior art, and its principles and algorithms are not elaborated upon here.

[0037] In this embodiment, the first adjustment mechanism 500 includes an L-shaped connecting plate 510 connected to the frame by a number of bolts A, and a horizontal long hole 511 and a vertical long hole 512 adapted to the bolts are provided on the horizontal plate of the L-shaped connecting plate, and a camera adjustment pad 520 is sandwiched between the horizontal plate of the L-shaped connecting plate and the frame; by selecting camera adjustment pads 520 of different thicknesses, the height of the high-speed camera 300 can be fine-tuned; the provision of the horizontal long hole 511 and the vertical long hole 512 can adjust the horizontal and vertical positions of the L-shaped connecting plate 510, thereby realizing the adjustment of the left and right, front and back positions of the high-speed camera 300.

[0038] In this embodiment, a connecting plate 410 is fixedly connected to each end of the crossbeam. The vertical plate of the L-shaped connecting plate is connected to the connecting plate via bolts B. The connecting plate is provided with a plurality of first connecting holes 411 evenly distributed along the circumference. The vertical plate of the L-shaped connecting plate is provided with first vertical elongated holes 513 that can be aligned with the first connecting holes. The bolts B pass through the first vertical elongated holes and the corresponding first connecting holes. The entire circle of first connecting holes 411 on the connecting plate allows the connecting plate to be installed at different angles, so as to facilitate adjustment of the camera's field of view according to the actual application scenario. The bolts B and first vertical elongated holes 513 can be provided one on each side, or two on each side, one above and one below. A pad is provided on the outside of the first vertical elongated hole 513. The pad has through holes corresponding to the positions of the first vertical elongated holes 513. The bolts B pass through the through holes in the pad, and the pad serves as a washer for the bolts.

[0039] In this embodiment, the vertical plate of the L-shaped connecting plate 510 has a second vertical slot 514 defined in the middle. A connecting shaft 412, which passes through the second vertical slot, is fixedly connected to the center of the connecting plate. The connecting shaft can rotate and move up and down within the second vertical slot. A fixing ring 515, located around the connecting shaft, is fixedly connected to the outer side of the vertical plate of the L-shaped connecting plate. Limit bolts 530, which press against the connecting shaft, are threadedly connected to the upper and lower sides of the fixing ring. By using the upper and lower limit bolts 530 to press against the limit bolts 530 of the connecting shaft, the height of the connecting shaft can be adjusted, thereby adjusting the horizontality of the beam.

[0040] In this embodiment, a U-shaped groove 516 is defined at the top of the vertical plate of the L-shaped connecting plate. The first connection hole at the top of the connecting plate 410 is bolted to a stopper 540 that fits within the U-shaped groove. After the connecting plate's installation angle is determined, the stopper 540 and the U-shaped groove 516 are used to effectively position the plate, and then bolts B are used to secure the connection.

[0041] In this embodiment, the two ends of the LED light source 200 are connected to the frame via a second adjustment mechanism 600. This second adjustment mechanism comprises a first bracket 610 connected to the end of the LED light source by bolts C, and a second bracket 620 connected to the frame by bolts D. The first bracket and the second bracket are hingedly connected. The first bracket has a plurality of second connection holes 611 distributed circumferentially around the hinged portion. The second bracket has bolt holes aligned with the second connection holes. Bolts E621 pass through the second and second connection holes and connect the first and second brackets. The full circle of second connection holes 611 on the first bracket allows the first bracket to be installed at different angles, facilitating adjustment of the light source's field of view according to the actual application scenario.

[0042] In this embodiment, a first protective frame 800 extending above the high-speed camera and extending to above the LED light source is provided, and a second protective frame 900 is provided obliquely below the LED light source. The protective frame is provided to effectively protect the high-speed camera and the LED light source.

[0043] The strip surface is inspected by the strip surface detection system. Based on the surface quality of the aluminum strip (i.e. whether there are pits), it is determined whether the non-woven fabric needs to be replaced, whether the tension roller cleaning device needs to be cleaned, and whether the pressure or injection amount of the solvent oil injection device needs to be adjusted.

[0044] The working process includes the following steps: (1) using the tension roller cleaning device to clean the rubber particles on the surface of the tension roller; (2) using the strip cleaning device to clean the surface of the aluminum material; (3) using the solvent oil spraying device to spray solvent oil on the surface of the strip; (4) using the straightening machine to straighten the strip; (5) using the strip surface blowing device to blow the strip surface by blowing air; (6) using the strip surface detection system to detect defects on the strip surface.

[0045] Unless otherwise stated, any numerical range disclosed for any technical solution disclosed in the present invention is a preferred numerical range. Those skilled in the art should understand that a preferred numerical range is merely a numerical range that provides a more significant or representative technical effect among a wide range of practicable values. Due to the large number of numerical values, it is impossible to enumerate them exhaustively. Therefore, only some numerical values ​​are disclosed in the present invention to illustrate the technical solution of the present invention. Furthermore, the numerical values ​​listed above should not be construed as limiting the scope of protection of the present invention.

[0046] If the present invention discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by integral molding using a casting process) (except where it is obviously not possible to use an integrated molding process).

[0047] In addition, unless otherwise stated, the terms used in any technical solution disclosed in the above-mentioned utility model to express positional relationships or shapes include states or shapes that are approximate, similar or close thereto.

[0048] Any component provided by the present invention can be assembled from multiple separate components, or can be a separate component manufactured by an integral forming process.

[0049] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation thereto. Any person skilled in the art may utilize the above disclosure to modify or remodel the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention shall remain within the scope of protection of the present invention.

Claims

1. A device for eliminating pits on the surface of a strip after straightening, comprising a straightener, wherein tension rollers are provided on the feed side and the discharge side of the straightener, respectively, and characterized in that: The straightening machine is provided with a strip cleaning device on the feeding side, a strip surface blowing device on the feeding side, a solvent oil injection device on the straightening machine near one end of the strip cleaning device, and a strip surface detection system is also provided next to the tension roller group on the discharging side.

2. The device for eliminating pits on the surface of a strip after straightening according to claim 1, characterized in that: The tension roller group includes at least two tension rollers, and a tension roller cleaning device is provided beside the tension rollers.

3. The device for eliminating pits on the surface of a strip after straightening according to claim 2, characterized in that: The tension roller cleaning device includes a brush attached to the surface of the tension roller and a rubber particle collecting cover located on the upper side of the brush. The top of the rubber particle collecting cover is connected to an exhaust pipe.

4. The device for eliminating pits on the surface of a strip after straightening according to claim 1, characterized in that: The strip cleaning device comprises a pair of cleaning rollers located on the upper and lower sides of the strip, and the cleaning rollers are wrapped with non-woven fabrics.

5. The device for eliminating pits on the strip surface after straightening according to claim 1, characterized in that: The solvent oil spraying device comprises a plurality of oil spraying pipes distributed above and below the strip, and a plurality of spray heads are arranged on the oil spraying pipes.

6. The device for eliminating pits on the strip surface after straightening according to claim 1, characterized in that: The strip surface blowing device comprises a pair of blowing pipes located above and below the strip, and the blowing pipes are provided with air outlet holes for blowing obliquely toward one side of the straightening machine.

7. The device for eliminating pits on the surface of a strip after straightening according to claim 1, characterized in that: The strip surface detection system includes a frame, which is equipped with multiple groups of LED light sources with different irradiation directions, and a high-speed camera for receiving light reflected by the LED light sources; the high-speed camera is installed on a beam, and the two ends of the beam are connected to the frame through a first adjustment mechanism; the first adjustment mechanism includes an L-shaped connecting plate connected to the frame by a number of bolts A, and the horizontal plate of the L-shaped connecting plate is provided with horizontal long holes and vertical long holes adapted to the bolts, and a camera adjustment pad is sandwiched between the horizontal plate of the L-shaped connecting plate and the frame.

8. The device for eliminating pits on the strip surface after straightening according to claim 7, characterized in that: The two ends of the beam are fixedly connected with connecting plates, and the vertical plate of the L-shaped connecting plate is connected to the connecting plate by bolts B. The connecting plate is provided with a plurality of first connecting holes evenly distributed along the circumference, and the vertical plate of the L-shaped connecting plate is provided with a first vertical long hole that can be aligned with the first connecting hole, and the bolt B passes through the first vertical long hole and the corresponding first connecting hole.

9. The device for eliminating pits on the strip surface after straightening according to claim 8, characterized in that: A second vertical long hole is provided in the middle of the vertical plate of the L-shaped connecting plate, and a connecting shaft passing through the second vertical long hole is fixedly connected to the center of the connecting plate, and the connecting shaft can rotate and move up and down in the second vertical long hole; a fixing ring located on the outer periphery of the connecting shaft is fixedly connected to the outer side of the vertical plate of the L-shaped connecting plate, and the upper and lower sides of the fixing ring are respectively threaded with limit bolts that press against the connecting shaft.

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