Color-coated sheet coating film thickness detection device and detection method based on laser measurement

Abstract

The invention discloses a color-coated sheet coating film thickness detection device and detection method based on laser measurement, and relates to the related technical field of detection, the color-coated sheet coating film thickness detection device based on laser measurement comprises a conveying mechanism, two first installation parts, a second installation part, a third installation part, a fourth installation part and a fifth installation part, the first mounting piece is fixed on the detection table, a removing mechanism used for removing burrs on the surface of the color-coated sheet is installed on the first mounting piece, the second mounting piece is fixed on the detection table and located at the conveying tail end of the color-coated sheet, and a plurality of laser detection devices used for detecting the coating thickness of the color-coated sheet are installed on the second mounting piece. A pressing assembly used for preventing the color-coated sheet from protruding in the conveying process is further installed on the second installation piece, the spiral propelling mode is that push-pull force similar to that in the cutting process of a kitchen knife exists, and therefore the acting force in the cutting process only acts on burrs. And therefore, the problem that the burrs and the normal coating near the burrs are lifted together is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the detection related technical field, specifically to the color coated sheet coating film thickness detection device and detection method based on laser measurement. BACKGROUND

[0002] The color coated sheet is a product which takes hot galvanized sheet, hot galvanized aluminum zinc sheet, electroplated zinc sheet as a substrate, after surface pretreatment (chemical degreasing and chemical conversion treatment), a layer or several layers of organic coating are coated on the surface, and then baked and cured.

[0003] The existing color coated sheet is produced in the form of a coil, and the coating thickness of the color coated sheet needs to be detected after production to meet the production requirements. Most of the existing detection methods are based on laser detection equipment to detect the coating thickness, and the surface of the color coated sheet after production will have burrs, which are formed during the production process of roller coating paint, although they do not affect subsequent use, but the burrs will directly affect the result of laser detection. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a color coated sheet coating film thickness detection device and detection method based on laser measurement, which solves the problem of burr affecting the detection result.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: a color coated sheet coating film thickness detection device based on laser measurement, comprising a detection table, further comprising: A conveying mechanism is installed at the bottom of the detection table for synchronous unwinding and winding of the color coated sheet; Two first mounting members are fixed on the detection table, and a removal mechanism for removing the burrs on the surface of the color coated sheet is installed on the first mounting member; A second mounting member is fixed on the detection table and at the tail end of the color coated sheet conveying, a plurality of laser detection equipment for detecting the coating thickness of the color coated sheet are installed on the second mounting member, and a pressing assembly for avoiding the bulging of the color coated sheet conveying is also installed on the second mounting member.

[0006] Further, the removal mechanism comprises a burr removing roller rotatably installed on the first mounting member, the burr removing roller is connected to the pressing assembly, and a scraping member is provided on the burr removing roller; The top of the burr removing roller is provided with two first limiting rollers through elastic members, and two second limiting rollers are rotatably installed on both sides of the burr removing roller; A first movable groove is formed on the first mounting member in a symmetrical manner, and the elastic member and the first limiting roller are installed in the first movable groove; The elastic member comprises a first guide member slidingly installed in the first movable slot and rotationally connected with a first limiting roller.

[0007] Further, the scraping member comprises a spiral notch formed on the surface of the burr removing roller, and a thread cutting part and a roller surface part are formed through the spiral notch. The pitch of the spiral notch is the same as the length of the burr removing roller, and the number of turns of the spiral notch is one turn. The detection table and the first mounting member are installed with a slag removal member, and the slag removal member is used to remove impurities generated during scraping in cooperation with the burr removing roller.

[0008] Further, the slag removal member comprises a slag removal opening formed on the detection table, and the slag removal opening is in communication with a water supply member installed at the bottom of the detection table. Two first limiting rollers are fixed between the two first limiting rollers, and a water spraying member is connected to the water supply member.

[0009] Further, the pressing assembly comprises a coating roller rotationally installed on the second mounting member, and third limiting rollers are rotationally installed on both sides of the coating roller. A mounting groove is formed on the detection table, and a gear set is installed in the mounting groove, wherein the gear set comprises a first gear and a second gear, and the first gear and the second gear are connected to the rotation shafts of the coating roller and the burr removing roller through two chains respectively.

[0010] Further, a second movable slot is formed on the second mounting member, a second guide member is slidingly installed in the second movable slot, a marking roller is rotationally installed on the second guide member, and a third spring is fixed on the second guide member, and the other end of the third spring is fixed on the second mounting member.

[0011] Further, the conveying mechanism comprises two hooking members fixed at the bottom of the detection table, and the two hooking members are oppositely arranged, and hooking parts are arranged on the opposite sides of the two hooking members, and a winding roller is detachably installed on the hooking parts of the two hooking members. A second gear is rotationally installed on the opposite side of the two hooking members, the second gear cooperates with a first gear coaxially fixed on the winding roller, and the two second gears are connected to a speed regulating assembly installed at the bottom of the detection table.

[0012] Further, the speed regulating assembly comprises a mounting plate fixed at the bottom of the detection table, two first transmission rods and a third transmission rod are rotationally installed at the bottom of the mounting plate, a fourth transmission rod and a second transmission rod are rotationally installed on the side of the first transmission rod and the third transmission rod away from the mounting plate. The first transmission rod and the third transmission rod are axially slidably installed with progressive adjustment tooth rollers, the progressive adjustment tooth rollers are provided with transmission grooves, the progressive adjustment tooth rollers are slidably connected with transmission strips fixed on the third transmission rod and the first transmission rod through the transmission grooves, and the second transmission rod and the fourth transmission rod are coaxially fixed with driven gears matched with the progressive adjustment tooth rollers; The teeth of the progressive adjustment tooth roller are of equal length in the circumferential direction, and the length of the teeth of the driven gear is the same as the progressive increase length of the teeth of the progressive adjustment tooth roller. A bidirectional screw rod is rotatably installed between the first transmission rod and the third transmission rod, two transmission members are sleeved on the bidirectional screw rod and are threadedly connected with the bidirectional screw rod, the two transmission members are rotatably connected with the two progressive adjustment tooth rollers, the first transmission rod and the third transmission rod are connected with the bidirectional screw rod through a first transmission chain, and the first transmission rod and the third transmission rod are connected with a driving member installed on a mounting plate.

[0013] Further, the driving member comprises a motor fixed on the mounting plate, and an output shaft of the motor is connected with the first transmission rod and the third transmission rod through a third transmission chain.

[0014] The application also provides a color-coated plate coating film thickness detection method based on laser measurement. Step one, the color-coated plate roll is synchronously unwound and wound through the conveying mechanism, and the unwinding and winding speed is adaptively adjusted to ensure that the color-coated plate is always in a taut state during conveying. Step two, burrs on one side of the color-coated plate coating are removed through the removing mechanism to avoid affecting the detection result. Step three, the color-coated plate is coated through the pressing assembly to ensure that there is no bulge during detection, and the detection position height is uniform.

[0015] The application has the following beneficial effects: The color-coated plate coating film thickness detection device based on laser measurement realizes synchronous unwinding and winding of the color-coated plate roll through the conveying mechanism. The unwinding speed gradually increases as the diameter of the color-coated plate roll gradually decreases, and the winding speed gradually decreases as the diameter of the color-coated plate roll gradually increases, so that the color-coated plate is always in a taut state during conveying.

[0016] The color-coated plate coating film thickness detection device based on laser measurement removes the burrs on the color-coated plate coating through the removing mechanism. Wherein, the cutting mode of the present application is different from the similar structure in other fields, the existing cutting is the mode of vertical blade, and the cutting is carried out in a straight way, while the present application is cut in a spiral advancing mode through the thread cutting part. The effect is cutting, but the effect is essentially different, the cutting mode of straight way may cause not only cutting burr, but also lifting normal coating near burr due to the fast rotating speed of the burr removing roller, while the spiral advancing mode of the present application has the push-pull force similar to the cutting of kitchen knife, and the acting force during cutting only acts on the burr, so that the problem of lifting burr and normal coating near burr together does not occur.

[0017] III. The color coated plate coating film thickness detection device based on laser measurement, through the limiting of two third limiting rollers on the color coated plate, the color coated plate is wrapped on the wrapping roller, and through the pulling of conveying, the color coated plate is adhered to the surface of the wrapping roller, so that the test position of the color coated plate does not appear to be raised, and the problem of uneven horizontal conveying caused by the yield strength of the color coated plate does not occur.

[0018] Of course, it is not necessary to achieve all the advantages described above when implementing any product of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic diagram of the whole present application; Figure 2 It is a structure schematic diagram of the whole present application; Figure 1 It is a structure schematic diagram of the whole present application; Figure 3 It is a structure schematic diagram of the whole present application; Figure 4 It is a structure schematic diagram of the whole present application; Figure 5 It is a structure schematic diagram of the whole present application; Figure 6 It is a structure schematic diagram of the whole present application; Figure 5 It is an exploded view of the whole present application; Figure 7 It is a structure schematic diagram of the whole present application; Figure 8 It is a structure schematic diagram of the whole present application; Figure 9 It is a structure schematic diagram of the whole present application; Figure 10 It is a structure schematic diagram of the whole present application; Figure 9 It is a structure schematic diagram of the whole present application; Figure 11 It is a structure schematic diagram of the whole present application;

[0020] In the figure: 1, detection table; 101, through slot; 102, guide roller; 103, lower miscellaneous mouth; 2, No. 1 mounting; 201, No. 1 limiting roller; 202, deburring roller; 203, No. 2 limiting roller; 204, water spraying part; 205, No. 1 guide part; 206, No. 1 spring; 2021, thread cutout; 2022, roller surface; 3, No. 2 mounting; 301, laser detection equipment; 302, covering roller; 303, marking roller; 304, No. 3 limiting roller; 305, No. 2 guide part; 306, No. 3 spring; 4, mounting plate; 401, No. 1 transmission rod; 402, No. 2 transmission rod; 403, No. 3 transmission rod; 404, No. 4 transmission rod; 405, No. 1 transmission chain; 406, bidirectional screw; 407, transmission part; 408, driven gear; 409, progressive adjustment toothed roller; 4010, transmission groove; 4011, transmission bar; 5, hooking part; 501, winding roller; 502, No. 1 gear; 503, No. 2 gear; 504, No. 2 transmission chain; 6, gear set; 601, chain; 7, motor; 701, No. 3 transmission chain; 9, circulating box; 901, conveying pump; 902, conveying pipe. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0023] The technical solutions provided by the embodiments of the present application will be described below according to the drawings. Figures 1-11 The embodiments of the present application provide a laser measurement-based color-coated sheet coating film thickness detection device.

[0024] As shown in the drawings, Figures 1-11 The embodiments of the present application provide a technical solution: a laser measurement-based color-coated sheet coating film thickness detection device, which comprises a detection table 1, further comprises a conveying mechanism installed at the bottom of the detection table 1, for synchronous unwinding and winding of the color-coated sheet.

[0025] Two No. 1 mountings 2 are fixed on the detection table 1, and a removing mechanism for removing burrs on the surface of the color-coated sheet is installed on the No. 1 mounting 2.

[0026] The No. 2 mounting part 3 is fixed on the inspection table 1 and is at the conveying end of the color-coated plate. Several laser detection devices 301 for detecting the coating thickness of the color-coated plate are installed on the No. 2 mounting part 3, and a clamping component for preventing the color-coated plate from bulging during transportation is also installed on the No. 2 mounting part 3.

[0027] In the embodiment of the present invention, the color-coated plate is synchronously wound and unwound by the conveying mechanism, so that the color-coated plate is conveyed during the unwinding and winding process.

[0028] The burrs on the coating side of the color-coated plate are removed by a removal mechanism to avoid errors in the test results caused by burrs.

[0029] During the conveyance of color-coated steel sheets, the coating thickness of the sheets is measured using laser detection equipment 301. However, since color-coated steel sheets are thin metal sheets with a certain yield strength, they are prone to deformation during conveyance, making it difficult to maintain ideal flatness (horizontal state), thus affecting detection accuracy. The present invention solves this problem by using a clamping assembly to constrain the color-coated steel sheets in the detection area, keeping them flat.

[0030] The removal mechanism includes a lickering-off roller 202 rotatably mounted on the first mounting member 2 , the lickering-off roller 202 is connected to the pressing assembly, and a scraping member is provided on the lickering-off roller 202 .

[0031] Two No. 1 limiting rollers 201 are installed on the top of the licker-in removing roller 202 through elastic members, and No. 2 limiting rollers 203 are rotatably installed on both sides of the licker-in removing roller 202.

[0032] The No. 1 mounting member 2 is provided with a first movable groove which is symmetrically arranged, and the elastic member and the No. 1 limiting roller 201 are installed in the first movable groove.

[0033] The elastic member includes a guide member 205 slidably installed in the first movable groove and rotatably connected to the limit roller 201 . A spring 206 is sleeved on the guide member 205 .

[0034] In the embodiment of the present invention, the color-coated plate is limited by two No. 2 limiting rollers 203 and No. 1 limiting roller 201 so that the front side (coating side) of the color-coated plate is covered on the de-thorning roller 202.

[0035] Among them, by setting the two No. 1 limiting rollers 201 to an inclined sliding state, and using the elastic potential energy of the No. 1 spring 206 to adjust the tightness of the color-coated plate wrapped around the de-thorning roller 202, even if the coating thickness of the color-coated plate is uneven, the tightness of the wrapping will not be too loose or too tight.

[0036] The de-thorning roller 202 is driven to rotate by the pressing assembly, and the burrs on the coating surface of the color-coated plate are scraped off by the scraping member when the de-thorning roller 202 rotates. Of course, the scraping not only removes the burrs, such as small protrusions and strip-shaped protrusions caused by the spray coating, but also plays a major role in leveling the coating surface of the color-coated plate.

[0037] The rotation direction of the puncture-removing roller 202 is in the opposite direction of the conveying of the color-coated plate. For example, if the color-coated plate is conveyed from right to left, the rotation direction of the puncture-removing roller 202 is clockwise.

[0038] The scraper includes a spiral groove formed on the surface of the licker-in roller 202 , and a thread cutout portion 2021 and a roller surface portion 2022 are formed by the spiral groove.

[0039] The pitch of the spiral notch is the same as the length of the lickering roller 202, and the number of turns of the spiral notch is one turn.

[0040] A slag lowering piece is installed on the detection table 1 and the No. 1 mounting piece 2, and impurities generated during scraping are removed through the cooperation of the slag lowering piece and the licker-off roller 202.

[0041] In the embodiment of the present invention, the thread cutting portion 2021 is a main scraping or cutting portion, and the roller surface portion 2022 is the surface of the roller body of the de-thorning roller 202 for contacting the color-coated sheet.

[0042] When the color-coated plate is coated on the de-burring roller 202, the actual coating position is the roller surface 2022, and the burrs on the coating surface of the color-coated plate extend into the spiral groove. The burrs in the spiral groove will be cut off due to the rotation of the de-burring roller 202, and the cut burrs will be temporarily stored in the spiral, and then discharged to the designated position through the cooperation of the slag lowering piece and the spiral groove.

[0043] Among them, the cutting method of the present invention is different from similar structures in other fields. The existing cutting method is to cut in a straight line with the blade vertical, while the present invention cuts by spirally advancing the thread cutting part 2021.

[0044] The function of both is cutting, but the effects are essentially different. The straight cutting method may not only cut off the burrs, but also lift up the normal coating near the burrs due to the fast rotation speed of the de-burring roller 202. The spiral propulsion method of the present invention has a push-pull force similar to that of a kitchen knife cutting, and the force during cutting only acts on the burrs, and the problem of lifting up the burrs and the normal coating near the burrs will not occur.

[0045] Secondly, when the color coated plate is wrapped to the deburring roller 202, the spiral notch is actually a spiral pipe with both ends open, and the impurities in it will be transported in one direction due to the rotation, which is similar to the conveying of the spiral auger.

[0046] The slag discharging member comprises a slag discharging opening 103 formed on the detection table 1, and the slag discharging opening 103 is in communication with the water supply member installed at the bottom of the detection table 1.

[0047] The two first limiting rollers 201 are fixed with the water spraying member 204, and the water spraying member 204 is connected with the water supply member.

[0048] In the embodiment of the present application, the water supply member comprises a circulating box 9 fixed at the bottom of the detection table 1 and in communication with the slag discharging opening 103, and the bottom of the detection table 1 is fixed with a delivery pump 901, the output end of the delivery pump 901 is connected with the water spraying member 204 through a delivery pipe 902, and the input end of the delivery pump 901 is connected with the circulating box 9.

[0049] The filtering equipment is installed in the circulating box 9, and the water is recycled after the impurities are filtered by the filtering equipment.

[0050] When the delivery pump 901 works, water is supplied to the water spraying member 204, and the water is sprayed to the deburring roller 202 through the water spraying member 204, and the impurities in the spiral notch are transported to the slag discharging opening 103 through the rotation of the water and the deburring roller 202, so that the water and the impurities enter the circulating box 9, and the water is filtered by the filtering equipment in the circulating box 9 and is recycled and used.

[0051] Secondly, since the rotation direction of the deburring roller 202 is opposite to the conveying direction of the color coated plate, the friction between the deburring roller 202 and the color coated plate can be reduced by spraying water on the deburring roller 202, so as to avoid scratching the color coated plate.

[0052] The pressing assembly comprises a wrapping roller 302 rotatably installed on the second mounting member 3, and the two sides of the wrapping roller 302 are rotatably installed with the third limiting rollers 304, and the laser detection equipment 301 is located at the top of the wrapping roller 302.

[0053] A mounting groove is formed on the detection table 1, and a gear set 6 is installed in the mounting groove, wherein the gear set 6 comprises a first gear and a second gear, and the first gear and the second gear are connected with the rotating shafts of the wrapping roller 302 and the deburring roller 202 through two chains 601 respectively.

[0054] In the embodiment of the present application, the color coated plate is wrapped on the wrapping roller 302 through the limiting of the two third limiting rollers 304, and the color coated plate is adhered to the surface of the wrapping roller 302 through the pulling of the conveying, so that the test position of the color coated plate will not appear bulging, and the problem that the horizontal conveying will be uneven due to the yield strength of the color coated plate will not occur.

[0055] Secondly, the surfaces of the third limiting roller 304 and the coating roller 302 are provided with anti-skid layers to improve the friction between the coated sheet and the coating roller 302 and the third limiting roller 304, so as to drive the coating roller 302 to rotate when the coated sheet is conveyed, and the counter-roller 202 is driven to rotate reversely through the chain 601 and the gear set 6 when the coating roller 302 rotates.

[0056] Wherein, when the coating roller 302 rotates, the rotating direction of the coating roller 302 is towards the conveying direction of the coated sheet, and the counter-roller 202 is towards the opposite direction of the coating roller 302, and the coating roller 302 and the counter-roller 202 rotate oppositely.

[0057] The second mounting member 3 is provided with a second movable slot, and a second guide member 305 is slidably installed in the second movable slot, the second guide member 305 is rotatably installed with a marking roller 303, and the second guide member 305 is further fixed with a third spring 306, and the other end of the third spring 306 is fixed with the second mounting member 3.

[0058] In the embodiment of the present application, the position of the marking roller 303 is at the starting end of the stroke of the second movable slot in the initial state due to the initial elasticity of the third spring 306, and when the coated sheet is coated on the coating roller 302 for conveying, the coated sheet and the marking roller 303 are in a clearance fit state, that is, there is a very small gap between them, but they will not contact.

[0059] When the protruding part on the coated sheet is conveyed to the marking roller 303, it will contact the marking roller 303 and drive it to rotate, so as to roll the paint attached to the marking roller 303 to the protruding part of the coated sheet, thereby playing a marking role.

[0060] The conveying mechanism comprises two hooking members 5 fixed to the bottom of the detection table 1, the two hooking members 5 are mirror-symmetrically arranged, and the opposite sides of the two hooking members 5 are provided with hooking parts, and the hooking parts of the two hooking members 5 are detachably installed with winding rollers 501.

[0061] Wherein, a single hooking member 5 is two same bearing members, which are respectively located on both sides of the width direction of the detection table 1.

[0062] The opposite sides of the two hooking members 5 are rotatably installed with second gears 503, the second gears 503 are matched with a first gear 502 coaxially fixed to the winding roller 501, and the two second gears 503 are connected and installed to a speed regulating assembly at the bottom of the detection table 1.

[0063] In the embodiment of the present application, the two second gears 503 are driven by the speed regulating assembly installed at the bottom of the detection table 1, so as to drive the two winding rollers 501 to rotate through the meshing of the second gears 503 and the first gear 502, and the two winding rollers 501 are respectively used for unwinding and winding.

[0064] AsFigure 4 As shown, the two winding rollers 501 are placed in the hooking part of the hooking member 5 to hang the two winding rollers 501 to the bottom of the inspection platform 1. Through grooves 101 are also opened on both sides of the inspection platform 1. Guide rollers 102 for guiding the color-coated plate are installed in the through grooves 101. During actual operation, the winding rollers 501 can be taken out from the hooking part of the hooking member 5, and when installing, the winding rollers 501 only need to be placed on the hooking part of the hooking member 5. It should be noted that the reason why the winding rollers 501 will not fall off in the hooking groove of the hooking member 5 is that the hooking groove of the hooking member 5 is inclined, and the winding rollers 501 have a certain weight. When the winding rollers 501 rotate, the force is not enough to make the winding rollers 501 fall off from the hooking groove of the hooking member 5.

[0065] The speed regulating assembly is used to drive the two second gears 503 to rotate synchronously, and the rotation speed of one of the second gears 503 gradually increases, while the rotation speed of the other gradually decreases.

[0066] The speed regulation assembly includes a mounting plate 4 fixed to the bottom of the test platform 1, and two transmission rods No. 1 401 and No. 3 403 are rotatably installed on the bottom of the mounting plate 4. Transmission rod No. 1 401 and No. 3 403 are rotatably installed on the side away from the mounting plate 4. Transmission rod No. 404 and No. 2 402 are rotatably installed on the side away from the mounting plate 4.

[0067] A progressive adjustment gear roller 409 is axially slidably installed on the No. 1 transmission rod 401 and the No. 3 transmission rod 403, and a transmission groove 4010 is provided in the progressive adjustment gear roller 409. The progressive adjustment gear roller 409 slides with the transmission bar 4011 fixed on the No. 3 transmission rod 403 and the No. 1 transmission rod 401 through the transmission groove 4010. The ends of the No. 2 transmission rod 402 and the No. 4 transmission rod 404 are coaxially fixed with a driven gear 408 that cooperates with the progressive adjustment gear roller 409.

[0068] The teeth of the progressive adjustment gear roller 409 are of equal length along the circumferential direction, and the length of the teeth of the driven gear 408 is the same as the progressive length of the teeth of the progressive adjustment gear roller 409 .

[0069] A bidirectional screw rod 406 is also rotatably installed between the No. 1 transmission rod 401 and the No. 3 transmission rod 403. Two transmission parts 407 that are threadedly matched with the bidirectional screw rod 406 are sleeved on the bidirectional screw rod 406. The two transmission parts 407 are rotatably connected to the ends of the two progressive adjustment gear rollers 409 respectively. The No. 1 transmission rod 401 and the No. 3 transmission rod 403 are connected to the bidirectional screw rod 406 through the No. 1 transmission chain 405. The No. 1 transmission rod 401 and the No. 3 transmission rod 403 are connected to the driving part installed on the mounting plate 4.

[0070] In the embodiment of the present application, the driving member drives the first transmission rod 401 and the third transmission rod 403 to rotate, and the third transmission rod 403 and the first transmission rod 401 rotate to drive the bidirectional screw rod 406 to rotate synchronously through the first transmission chain 405.

[0071] When the first transmission rod 401 and the third transmission rod 403 rotate, the two progressive adjustment tooth rollers 409 rotate synchronously with the first transmission rod 401 and the third transmission rod 403 through the cooperation of the transmission bars 4011 and the transmission grooves 4010, and at the same time, the progressive adjustment tooth rollers 409 can axially slide on the first transmission rod 401 or the third transmission rod 403 due to the existence of the transmission bars 4011 and the transmission grooves 4010.

[0072] Since the bidirectional screw rod 406 rotates synchronously with the first transmission rod 401 and the third transmission rod 403, the two progressive adjustment tooth rollers 409 rotate oppositely or relatively through the thread cooperation of the bidirectional screw rod 406 and the transmission member 407 when the first transmission rod 401 and the third transmission rod 403 rotate.

[0073] As shown in Figure 6 , the two driven gears 408 are at the same position, and when the progressive adjustment tooth roller 409 on the third transmission rod 403 rotates, the fourth transmission rod 404 is driven to rotate through the meshing of the surface teeth of the progressive adjustment tooth roller 409 and the driven gear 408 on the fourth transmission rod 404, which is minimum tooth transmission, that is, the incomplete gear drives the complete gear to rotate, and when the third transmission rod 403 rotates, one of the two second gears 503 at the unwinding end is driven to rotate through one of the second transmission chains 504, and since the progressive adjustment tooth roller 409 gradually moves axially with the rotation, the teeth meshing with the driven gear 408 gradually increase, and the technical effect achieved is that the rotation angle or the number of turns of one winding roller 501 used for unwinding gradually increases with the unwinding. Figure 4 and Figure 7 , as shown.

[0074] As shown in Figure 7 , the structure on both sides of the bidirectional screw rod 406 is the same, that is, the transmission principle of the progressive adjustment tooth roller 409 on the first transmission rod 401 and the driven gear 408 on the second transmission rod 402 is basically the same as described above, only the axial movement of the two progressive adjustment tooth rollers 409 is opposite, and the technical effect to be achieved is that the rotation angle or the number of turns of one winding roller 501 used for winding gradually decreases with the winding.

[0075] The effect achieved by the embodiment is that the rotation angle or the number of turns of the two winding rollers 501 is adjusted according to the self-adaptation of unwinding and winding, so that the color coated sheet is always in a taut state when unwinding and winding are synchronously performed.

[0076] It should be further pointed out that,Figure 7 The dotted arrows in the figure indicate the rotation direction of the corresponding components, which are used to assist in understanding the above working principles.

[0077] The driving member includes a motor 7 fixed on the mounting plate 4 , and the output shaft of the motor 7 is connected to the first transmission rod 401 and the third transmission rod 403 through the third transmission chain 701 .

[0078] In the embodiment of the present invention, when the motor 7 is working, its output shaft drives the first transmission rod 401 and the third transmission rod 403 to rotate through the third transmission chain 701 .

[0079] In summary, the two winding rollers 501 are driven to rotate synchronously by the conveying mechanism, thereby achieving synchronous unwinding and rewinding of the color-coated sheet.

[0080] As the two winding rollers synchronously unwind and rewind the color-coated sheet, the sheet between the two winding rollers 501 is in a conveying state. In this conveying state, the sheet is positioned so that it wraps around the deburring roller 202. The rotation of the deburring roller 202 removes burrs from the coated surface of the sheet, and the deburring roller 202 also serves to transport burrs.

[0081] At the same time, the third limiting roller 304 is used to limit the color-coated sheet to the covering roller 302, ensuring that the color-coated sheet is at a consistent height during transportation. This prevents inaccurate measurement data due to conveying height deviations when the laser detection device 301 is used to measure the coating thickness of the color-coated sheet.

[0082] The present invention also provides a method for detecting the coating thickness of a color-coated plate based on laser measurement, which uses the device for detecting the coating thickness of a color-coated plate based on laser measurement, comprising the following steps: Step 1: The color-coated plate roll is unwound and rewound synchronously through the conveying mechanism, and the unwound and rewinding speeds are adaptively adjusted to ensure that the color-coated plate is always in a taut state when being conveyed; Step 2: Use the removal mechanism to remove the burrs on the coating side of the color-coated plate to avoid affecting the test results; Step 3: Wrap the color-coated plate with a compression assembly to ensure that no bulge occurs during testing and that the testing position is highly uniform.

[0083] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other presenters can develop. It is also possible, however, that only a single element can be present. It is further noted that such a term as "comprising" is intended to mean that the embodiments include the recited elements, but not excluding other elements. "Consisting essentially of when used herein in relation to a composition, means that the composition includes the recited elements, and can include additional elements, so long as the additional elements do not materially alter the basic and novel properties of the claimed composition. "Consisting of" when used herein in relation to a composition means that the composition includes the recited elements and nothing more.

[0084] The preferred embodiments of the application disclosed above are only to help explain the principles of the present application. The preferred embodiments do not describe all the details of the present application, nor limit the present application to only the specific embodiments described. It is apparent that many modifications and variations can be made to the present application based on the content of the present disclosure. The present disclosure selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that those skilled in the art can well understand and utilize the present application. The present application is limited only by the claims and their full scope and equivalents.

Claims

1. A device for detecting the thickness of a coating film of a color-coated plate based on laser measurement, comprising a detection table (1), characterized in that: Also includes: A conveying mechanism, mounted on the bottom of the inspection table (1), for synchronously unwinding and rewinding the color-coated plate; Two No. 1 mounting pieces (2) are fixed on the inspection table (1), and a removal mechanism for removing burrs from the surface of the color-coated plate is installed on the No. 1 mounting piece (2); The second mounting member (3) is fixed on the detection table (1) and is located at the conveying end of the color-coated plate. The second mounting member (3) is equipped with a plurality of laser detection devices (301) for detecting the coating thickness of the color-coated plate, and the second mounting member (3) is also equipped with a clamping component for preventing the color-coated plate from being bulged during conveyance.

2. The device for detecting the coating thickness of a color-coated plate based on laser measurement according to claim 1, characterized in that: The removal mechanism comprises a thorn-removing roller (202) rotatably mounted on the first mounting member (2), the thorn-removing roller (202) being connected to the pressing assembly, and a scraping member being provided on the thorn-removing roller (202); Two No. 1 limiting rollers (201) are installed on the top of the de-thorning roller (202) through elastic members, and No. 2 limiting rollers (203) are rotatably installed on both sides of the de-thorning roller (202); The first mounting member (2) is provided with a symmetrically arranged first movable groove, and the elastic member and the first limiting roller (201) are installed in the first movable groove; The elastic member comprises a No. 1 guide member (205) slidably mounted in the first movable groove and rotatably connected to a No. 1 limiting roller (201); a No. 1 spring (206) is sleeved on the No. 1 guide member (205).

3. The device for detecting the coating thickness of a color-coated plate based on laser measurement according to claim 2 is characterized in that: The scraping member comprises a spiral notch formed on the surface of the de-licking roller (202), and a thread cutting portion (2021) and a roller surface portion (2022) are formed by the spiral notch; The pitch of the spiral notch is the same as the length of the lickering roller (202), and the number of turns of the spiral notch is one turn; A slag lowering piece is installed on the detection table (1) and the No. 1 mounting piece (2), and impurities generated during scraping are removed by the cooperation of the slag lowering piece and the pricking roller (202).

4. The device for detecting the coating thickness of a color-coated plate based on laser measurement according to claim 3 is characterized in that: The lower slag part comprises a lower slag opening (103) opened on the detection platform (1), and the lower slag opening (103) is connected to a water supply part installed at the bottom of the detection platform (1); A water spraying member (204) is fixed between the two No. 1 limiting rollers (201), and the water spraying member (204) is connected to the water supply member.

5. The device for detecting the coating thickness of a color-coated plate based on laser measurement according to claim 2, characterized in that: The pressing assembly comprises a covering roller (302) rotatably mounted on a second mounting member (3), a third limiting roller (304) rotatably mounted on both sides of the covering roller (302), and the laser detection device (301) is located on top of the covering roller (302); The detection table (1) is provided with an assembly groove, in which a gear set (6) is installed, wherein the gear set (6) includes a first gear and a second gear, and the first gear and the second gear are connected to the rotating shafts of the coating roller (302) and the de-licking roller (202) respectively through two chains (601).

6. The device for detecting the coating thickness of a color-coated plate based on laser measurement according to claim 5 is characterized in that: The No. 2 mounting member (3) is provided with a second movable groove, in which a No. 2 guide member (305) is slidably mounted, a marking roller (303) is rotatably mounted on the No. 2 guide member (305), and a No. 3 spring (306) is also fixed on the No. 2 guide member (305), the other end of the No. 3 spring (306) being fixed to the No. 2 mounting member (3).

7. The device for detecting the coating thickness of a color-coated plate based on laser measurement according to claim 1, characterized in that: The conveying mechanism comprises two hooking members (5) fixed to the bottom of the detection platform (1), the two hooking members (5) are arranged opposite to each other, and opposite sides of the two hooking members (5) are provided with hooking parts, and winding rollers (501) are detachably mounted on the hooking parts of the two hooking members (5); A second gear (503) is rotatably mounted on one side of the two hooking members (5), the second gear (503) cooperates with a first gear (502) coaxially fixed on the winding roller (501), and the two second gears (503) are connected to a speed regulating assembly mounted on the bottom of the detection platform (1).

8. The device for detecting the coating thickness of a color-coated plate based on laser measurement according to claim 7, characterized in that: The speed regulating assembly comprises a mounting plate (4) fixed to the bottom of the test platform (1), two first transmission rods (401) and a third transmission rod (403) being rotatably mounted on the bottom of the mounting plate (4), and a fourth transmission rod (404) and a second transmission rod (402) being rotatably mounted on the side of the first transmission rod (401) and the third transmission rod (403) away from the mounting plate (4); A progressive adjustment tooth roller (409) is axially slidably mounted on both the No. 1 transmission rod (401) and the No. 3 transmission rod (403), a transmission groove (4010) is provided in the progressive adjustment tooth roller (409), and the progressive adjustment tooth roller (409) is slidably engaged with a transmission bar (4011) fixed on the No. 3 transmission rod (403) and the No. 1 transmission rod (401) through the transmission groove (4010), and a driven gear (408) coaxially engaged with the progressive adjustment tooth roller (409) is coaxially fixed to the ends of the No. 2 transmission rod (402) and the No. 4 transmission rod (404); The teeth of the progressively adjusting toothed roller (409) are of equal length along the circumferential direction, and the tooth length of the driven gear (408) is the same as the progressive length of the teeth of the progressively adjusting toothed roller (409); A bidirectional screw rod (406) is rotatably mounted between the first transmission rod (401) and the third transmission rod (403). Two transmission members (407) threadedly engaged with the bidirectional screw rod (406) are sleeved on the bidirectional screw rod (406). The two transmission members (407) are rotatably connected to the ends of two progressive adjustment gear rollers (409), respectively. The first transmission rod (401) and the third transmission rod (403) are connected to the bidirectional screw rod (406) via a first transmission chain (405). The first transmission rod (401) and the third transmission rod (403) are connected to a driving member mounted on the mounting plate (4).

9. The device for detecting the coating thickness of a color-coated plate based on laser measurement according to claim 8, characterized in that: The driving member comprises a motor (7) fixed on the mounting plate (4), and an output shaft of the motor (7) is connected to the first transmission rod (401) and the third transmission rod (403) via a third transmission chain (701).

10. A method for detecting the coating thickness of a color-coated plate based on laser measurement, using the device for detecting the coating thickness of a color-coated plate based on laser measurement according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: The color-coated plate roll is unwound and rewound synchronously through the conveying mechanism, and the unwound and rewinding speeds are adaptively adjusted to ensure that the color-coated plate is always in a taut state when being conveyed; Step 2: Use the removal mechanism to remove the burrs on the coating side of the color-coated plate to avoid affecting the test results; Step 3: Wrap the color-coated plate with a compression assembly to ensure that no bulge occurs during testing and that the testing position is highly uniform.

Images