Aluminum sheet strip foil surface aluminum powder collection device

Abstract

The application discloses an aluminum plate strip foil surface aluminum powder collecting device and a quantitative evaluation method, which comprises a fixed plate and a moving plate, the lower surface of the fixed plate is fixedly provided with two guide rods, the moving plate is provided with through holes for the guide rods, a spring one is fixedly arranged between the moving plate and the fixed plate, the spring one is arranged outside the two guide rods, the upper surface of the fixed plate is provided with a buffer pad, and the buffer pad is fixed with a collecting test paper through an elastic band. The aluminum plate strip foil surface aluminum powder collecting device can control the force applied to the buffer pad by controlling the moving distance of the moving plate relative to the guide rod, can ensure that the same size of pressure is applied during the collecting process and each time of collecting, improves the accuracy of collecting aluminum powder, greatly improves the reference significance of the collecting result, can accurately judge the residual amount of aluminum powder, and thus provides guidance for production and process control improvement. The aluminum plate strip foil surface aluminum powder quantitative evaluation method is simple in operation, convenient to use, and quantitative, intuitive and accurate.

Description

Technical Field

[0001] This invention relates to the field of aluminum plate, strip, and foil surface quality testing technology, specifically to an aluminum powder collection device and quantitative evaluation method for aluminum plate, strip, and foil surfaces. Background Technology

[0002] During the production of aluminum sheet, strip, and foil, the high speed of the rolling mill generates a large amount of aluminum powder. Much of this powder adheres to the surface of the aluminum sheet, strip, and foil. Although the washing with rolling oil removes some of the powder, some remains. When the aluminum powder agglomerates or forms large, localized patches on the surface, it causes defects such as black lines / spots, white lines / spots, pinholes, holes, and strip breaks, resulting in economic losses for the manufacturing company and impacting supply relationships with upstream and downstream suppliers. The amount of residual aluminum powder on the surface of the aluminum sheet, strip, and foil directly affects the surface quality of the finished product, but it is difficult to quantify and evaluate in actual production.

[0003] Currently, there are no relevant industry standards for testing surface aluminum powder. Instead, the amount of aluminum powder is often qualitatively evaluated by workers on-site using a wiping method. When collecting aluminum powder from aluminum sheet / strip foil surfaces, paper towels, cotton wool, or white gloves are typically used as a medium to wipe the surface, and the density of the powder is simply judged based on the color intensity of the powder on the surface after wiping. This method cannot achieve precise quantitative collection, thus failing to accurately determine the amount of residual aluminum powder. Furthermore, when manually wiping the surface, the color intensity of the powder area can vary depending on the pressure applied by the collector, making it difficult to ensure consistent pressure for each collection. Therefore, the collected results are not very meaningful. Thus, we propose an aluminum powder collection device for aluminum sheet / strip foil surfaces.

[0004] Meanwhile, after collecting aluminum powder from the surface of aluminum plates, strips, and foils, it is not easy to quantitatively evaluate it, so it is impossible to accurately and quickly guide the improvement of production and process control. Therefore, we also propose a quantitative evaluation method for aluminum powder on the surface of aluminum plates, strips, and foils. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the defects of the existing technology and provide an aluminum powder collection device and quantitative evaluation method for aluminum plate, strip and foil surfaces. This device can ensure that the same pressure is applied during the collection process and each collection, which improves the accuracy of aluminum powder collection and greatly enhances the reference significance of the collection results. It can accurately determine the residual amount of aluminum powder, thereby providing guidance for production and process control improvement. Moreover, the quantitative classification of aluminum powder is simple and convenient to use, and can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an aluminum powder collection device for aluminum plate foil surface, comprising a fixed plate and a movable plate, wherein two guide rods are fixedly disposed on the lower surface of the fixed plate, and a through hole for the guide rods to pass through is provided on the movable plate, wherein a spring is fixedly disposed between the movable plate and the fixed plate, the spring being sleeved on the outside of the two guide rods, and a buffer pad is disposed on the upper surface of the fixed plate, wherein a collection test paper is fixed on the buffer pad by a rubber band.

[0007] As a preferred embodiment of the present invention, the guide rod is uniformly provided with scale lines and corresponding numerical markings.

[0008] As a preferred embodiment of the present invention, an electric push rod is provided in the middle of the lower surface of the movable plate. The movable end of the electric push rod is fixedly connected to the lower surface of the movable plate, and the fixed end of the electric push rod is installed on the operating block. A handle is provided on the upper surface of the operating block.

[0009] As a preferred embodiment of the present invention, the lower surface of the fixed plate is provided with two adjustable lifting rods, and a proximity switch is installed at the top of the lifting rods. The proximity switch is electrically connected to an electric push rod.

[0010] As a preferred embodiment of the present invention, the fixed end of the electric push rod is fixedly disposed on one side of the lower surface of the rotating plate, and a rotating mechanism is disposed on the other side of the lower surface of the rotating plate. The rotating mechanism includes a mounting base and a drive motor disposed in the mounting base. A reduction gearbox is mounted on one side of the upper surface of the mounting base. The output shaft of the drive motor is connected to the input shaft in the reduction gearbox through a coupling. A gear is mounted on the output shaft of the reduction gearbox. A fixed base is mounted on the other side of the upper surface of the mounting base. A fixed shaft is mounted on the fixed base. The end of the rotating plate is rotatably disposed on the fixed shaft, and a fixed tooth is disposed on the side surface of the rotating plate. The fixed tooth meshes with the gear.

[0011] As a preferred technical solution of the present invention, a base is fixedly provided on the lower surface of the mounting base, a cardboard box is provided on the side of the base, a rubber band release mechanism is provided on the upper surface of the cardboard box, and a paper pressing mechanism and a top plate mechanism are also provided inside the cardboard box.

[0012] The elastic band release mechanism is provided in four sets, and the four sets of elastic band release mechanisms are respectively set at the four corners of the upper surface of the cardboard box. The elastic band release mechanism includes three sets of two mounting rods fixedly set on the upper surface of the cardboard box. A rotating drum is rotatably set between the two opposite mounting rods in each set. A conveyor belt is set on the rotating drum. A second drive motor is installed on the side surface of one of the mounting rods. The output shaft of the second drive motor is connected to the corresponding rotating drum. Hook-shaped elastic band fixing rods are evenly fixed on the outer surface of the conveyor belt.

[0013] The inner upper part of the cardboard box has two symmetrical grooves on two opposite side surfaces. The paper pressing mechanism includes two electric push rods that are fixedly installed inside the two grooves. Each electric push rod has a connecting rod installed at its movable end. Two mounting plates are fixedly installed symmetrically on both sides of the connecting rods. A paper pressing roller is rotatably arranged between the two mounting plates.

[0014] The top plate mechanism includes a second spring installed on the upper surface of the bottom plate inside the cardboard box and a top plate fixedly installed at the top of the second spring.

[0015] As a preferred embodiment of the present invention, a proximity switch two is installed at the center of the upper surface of the bottom plate of the cardboard box, and the proximity switch two is electrically connected to the electric push rod one and the drive motor two respectively.

[0016] As a preferred embodiment of the present invention, a support block is provided on the lower surface of the mounting base, a paper output box is provided on the lower surface of the support block, a control box is provided on the lower surface of the support block, a base plate is provided on the lower surface of the control box and fixedly connected to the bottom side surface of the paper box, a paper tube groove is provided inside the paper output box, a paper winding motor is installed on the outer surface of the paper output box, the output shaft of the paper winding motor passes through the paper tube groove and is connected to the paper tube, a paper output port is provided on the lower part of the side surface of the paper output box near the paper box, an electric push rod three is installed in the internal cavity of the paper output port, and a cutting blade is installed on the movable end of the electric push rod three through a blade holder.

[0017] As a preferred embodiment of the present invention, a fixing block is provided between the buffer pad and the fixing plate. A rubber band groove is provided on the fixing block near the fixing plate. A paper ejection mechanism is provided on the fixing block. The paper ejection mechanism includes a drive motor three fixedly installed on the outer surface of the fixing block. A slot is provided inside the fixing block. Two moving rods are slidably provided on each of the two long sides of the slot. A paper ejection roller is rotatably provided between the corresponding two moving rods. The two paper ejection rollers are respectively provided on both sides of the fixing block and can be moved along the length direction of the slot by the moving rods. A rack is fixedly provided on the end of the moving rod away from the paper ejection roller. The output shaft of the drive motor three passes through the slot and is connected to the rotating shaft through a coupling. Gear two is installed on the outer sides of both ends of the rotating shaft. The two gear two mesh with the corresponding racks.

[0018] A method for quantitatively evaluating aluminum powder on the surface of aluminum plates, strips, and foils includes the following steps:

[0019] S1): Remove the collection strip after collecting aluminum powder from the collection device, and place the collection strip and grayscale card in a miniature photography studio in the laboratory for comparative observation.

[0020] S2): The miniature photography studio is enclosed on all sides and the top and bottom surfaces. The top cover can be opened. The inner surface is covered with pure white soft light cloth. The surrounding area is illuminated by LED lights with an illuminance of 1000-2500 lx and a color temperature range of 3000-5000 k. Then, the comparison is observed through the window opened on the top cover.

[0021] S3): Select the area with the darkest aluminum powder on the sample strip and compare it with the grayscale card;

[0022] S4): The grayscale value closest to the color of the darkest area of ​​aluminum powder on the test strip is identified as the surface aluminum powder residue level of the sample.

[0023] S5): Repeat the above steps when taking multiple samples and measurements, and select the highest grade among the results as the final grade.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] This aluminum powder collection device for aluminum sheet and foil surfaces collects aluminum powder from the surface of the aluminum sheet and foil using a collection test paper fixed on a buffer pad. During the collection process, a downward-pressing moving plate applies force to the fixed plate and the buffer pad, thus pressing the collection test paper firmly onto the surface of the aluminum sheet and foil. By controlling the movement distance of the moving plate relative to the guide rod, the force applied to the buffer pad can be controlled, ensuring that the same amount of pressure is applied during the collection process and for each collection, thereby improving the accuracy of aluminum powder collection and greatly enhancing the reference value of the collection results. It can accurately determine the residual amount of aluminum powder, thus providing guidance for production and process control improvements.

[0026] This method for quantitatively evaluating aluminum powder on the surface of aluminum plates, strips, and foils involves placing aluminum powder collection test strips and grayscale cards for quantitative grading in a closed miniature photography studio. The method quantifies and grades the aluminum powder by comparing the darker areas on the collection test strips with the grayscale cards. It is simple to operate, convenient to use, and provides intuitive and accurate quantification, which is beneficial for accurately and quickly guiding improvements in production and process control based on the residual amount of aluminum powder. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of Embodiment 4 of the present invention;

[0031] Figure 5This is a schematic diagram of the paper pressing mechanism and the top plate mechanism of the present invention;

[0032] Figure 6 This is a schematic diagram of the elastic band release mechanism of the present invention;

[0033] Figure 7 This is a schematic diagram of the structure of Embodiment 5 of the present invention;

[0034] Figure 8 This is a schematic diagram of the internal structure of the cardboard box of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of Embodiment Six of the present invention;

[0036] Figure 10 This is a schematic diagram of the internal structure of the paper ejection mechanism of the present invention;

[0037] Figure 11 This is a schematic cross-sectional view of the paper ejection mechanism of the present invention.

[0038] In the picture:

[0039] 1. Fixed plate, 2. Moving plate, 3. Guide rod, 4. Spring 1, 5. Buffer pad, 6. Sample paper, 7. Scale line 1;

[0040] 8. Electric push rod I; 9. Lifting rod; 10. Proximity switch I; 11. Scale line II; 12. Operating block; 13. Handle;

[0041] 14 Rotating plate, 15 Mounting base, 16 Gearbox, 17 Gear 1, 18 Fixed gear, 19 Fixed base;

[0042] 20 sets of cardboard boxes, 21 rubber band release mechanism, 211 mounting rod, 212 conveyor belt, 213 drive motor II, 214 rubber band fixing rod, 22 paper pressing mechanism, 221 groove, 222 electric push rod II, 223 connecting rod, 224 mounting plate, 225 paper pressing roller, 23 top plate mechanism, 231 top plate, 232 spring II, 233 proximity switch II;

[0043] 24 Control box, 25 Paper output box, 251 Paper roll, 252 Paper output port, 253 Electric push rod three, 254 Cutting blade, 26 Support block;

[0044] 27 Fixed block, 28 Rubber band groove, 29 Paper ejection mechanism, 291 Drive motor three, 292 Rotary shaft, 293 Gear two, 294 Moving rod, 295 Rack and pinion, 296 Paper ejection roller. Detailed Implementation

[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0046] Please see Figure 1-11 The present invention provides a technical solution:

[0047] Example 1, please refer to the following for details. Figure 1 .

[0048] A device for collecting aluminum powder from the surface of aluminum sheet foil includes a fixed plate 1 and a movable plate 2. Two guide rods 3 are fixedly mounted on the lower surface of the fixed plate 1 by adhesive bonding. The movable plate 2 has through holes for the guide rods 3 to pass through. A spring 4 is fixedly mounted between the movable plate 2 and the fixed plate 1. The spring 4 is sleeved on the outside of the two guide rods 3. The guide rods 3 can be made of metals that are not easily deformed, such as copper or aluminum. A buffer pad 5 is adhesively bonded to the upper surface of the fixed plate 1. The buffer pad 5 can be a slightly elastic and flat object such as rubber, which can make the surface of the collection test paper evenly contact the sample. A collection test paper 6 is fixed to the buffer pad 5 by a rubber band for collecting aluminum powder residue. The collection test paper 6 can be a plain white tissue.

[0049] Furthermore, the guide rod 3 is evenly provided with scale lines 7 and corresponding numerical markings, which makes it easy for staff to observe during operation and keep the moving plate 2 at the corresponding height. This ensures that the same amount of pressure is applied to the collection test paper during multiple measurements, guaranteeing the accuracy of aluminum powder collection and facilitating accurate determination of the amount of aluminum powder residue.

[0050] During online data collection, hold the collection device horizontally, with the fixed plate 1 parallel to your body. Hold both sides of the fixed plate 1 with one hand, making the white paper towel contact the surface of the aluminum foil blank. Then, push the moving plate 2 downwards to a certain scale value on the guide rod 3 to apply force to the fixed plate 1 and the buffer pad 5, pressing the collection test strip 6 firmly while ensuring that it does not affect the rotation of the material roll. After the aluminum roll has traveled 30m, separate the device from the aluminum foil blank and then remove the collection test strip 1 for subsequent testing and quantitative evaluation.

[0051] If multiple measurements are required, repeat the above steps, and label and save the white tissues used for collection.

[0052] For offline sample collection, take an aluminum foil strip with a size of not less than 25cm × 10cm. Hold both sides of the fixing plate 1 with one hand, and place a white tissue in contact with the surface of the strip or aluminum foil to be tested. Push the moving plate 2 downwards until it reaches a certain scale value on the guide rod 3, applying force to the fixing plate 1 and the buffer pad 5, thereby pressing the collection test strip 6 firmly onto the surface of the strip or aluminum foil to be tested. Then push the device forward while keeping the moving plate 2 stable at the aforementioned scale value. After pushing forward 20cm, separate the device from the aluminum foil strip. Then remove the collection test strip 6 for subsequent testing.

[0053] If you need to measure multiple samples, repeat the above steps. Label each white tissue used for collection and save it.

[0054] The aluminum powder collection device on the surface of aluminum plate, strip, and foil shown in this embodiment has a simple structure, is convenient for collection, saves time and effort, is easy to carry, has low environmental requirements, can be used on the production site, and can quickly detect and classify the aluminum powder condition on the sample surface. It is easy to operate, fast and efficient, and facilitates timely control and optimization of the production status. Different samples of the same process or samples of different processes can be quantitatively characterized and compared in the horizontal or vertical direction, and has a wide range of applications.

[0055] Example 2, please refer to the details. Figure 2 .

[0056] Similar to Embodiment 1, the difference lies in the addition of a drive mechanism and sensor components to automatically apply force to the moving plate 2 and maintain the same force magnitude for online data acquisition. Specifically:

[0057] An electric push rod 8 is provided in the middle of the lower surface of the movable plate 2. The movable end of the electric push rod 8 is fixedly connected to the lower surface of the movable plate 2, and the fixed end of the electric push rod 8 is installed on the operating block 12. A handle 13 is provided on the upper surface of the operating block 12. During operation, the collection device is held by the handle 13 for collection, which is easy to operate and convenient to use. During collection, the movable plate 2 is pushed down a certain distance by the electric push rod 8, which can achieve the same effect as manually pushing the movable plate 2 to press the collection test strip 6 in Embodiment 1. By setting the extension distance of the electric push rod 8, the same pressure can be maintained on the movable plate 2 throughout the collection process, avoiding the impact of unstable force during manual operation on the collection accuracy. At the same time, the staff does not need to maintain constant focus during collection, avoiding the discomfort caused by long-term mental tension, reducing work pressure and benefiting the health of the staff.

[0058] Furthermore, the lower surface of the fixed plate 1 is provided with two lifting rods 9. Each lifting rod 9 includes a fixed cylinder and an adjusting rod. The adjusting rod slides inside the fixed cylinder. The inner wall of the fixed cylinder is provided with elastic washers such as rubber washers to prevent the adjusting rod from sliding down automatically when stationary. A proximity switch 10 is installed at the top of the adjusting rod. The proximity switch 10 is electrically connected to the electric push rod 8. When the moving plate 2 moves downward to the set distance of the proximity switch 10, that is, when the force applied to the fixed plate 1 has reached the set value, the proximity switch 10 closes the electric push rod 8, stopping the movement of the moving plate 2 and the application of force to the fixed plate 1. This allows for online data acquisition and detection, improving the degree of automation and making it more convenient to use.

[0059] Furthermore, the outer surface of the adjusting rod is evenly provided with scale lines 11 and corresponding readings, so as to accurately adjust the height of the proximity switch 10, thereby flexibly adjusting the extension distance of the electric push rod 8 according to the force applied to the fixed plate 1, improving the flexibility of use.

[0060] Example 3, please refer to the details. Figure 3 .

[0061] Similar to Embodiment 2, the difference lies in the addition of a rotating mechanism. This allows the collecting device to automatically rotate 90 degrees away from the material roll after collecting data, facilitating paper removal and replacement. Specifically:

[0062] The fixed end of the electric push rod 8 is fixedly set on one side of the lower surface of the rotating plate 14. A rotating mechanism is set on the other side of the lower surface of the rotating plate 14. The rotating mechanism drives the electric push rod 8, the moving plate 2, the fixed plate 1, etc. to rotate through the rotating plate 14. After sampling, it can automatically rotate 90 degrees and move away from the top of the material roll to facilitate paper picking and paper replacement, and quickly perform continuous testing, thus improving work efficiency.

[0063] The rotating mechanism includes a mounting base 15 and a drive motor 1 installed inside the mounting base 15. A reduction gearbox 16 is installed on one side of the upper surface of the mounting base 15. The output shaft of the drive motor 1 is connected to the input shaft inside the reduction gearbox 16 via a coupling. A gear 17 is installed on the output shaft of the reduction gearbox 16. A fixed base 19 is installed on the other side of the upper surface of the mounting base 15. A fixed shaft is installed on the fixed base 19. The end of the rotating plate 14 is rotatably mounted on the fixed shaft. The side surface of the rotating plate 14 is provided with fixed teeth 18. The fixed teeth 18 mesh with the gear 17. After a 30m collection is completed, the drive motor 1 drives the gear 17 to rotate. The gear 17 drives the rotating plate 14 to rotate 90 degrees through the fixed teeth 18, thereby causing the moving plate 2, the fixed plate 1, the buffer pad 5, etc. to rotate 90 degrees, so that the collection test paper 6 is removed from above the material roll for easy paper picking and replacement.

[0064] Furthermore, the fixed teeth 18 on the rotating plate 14 occupy about a quarter of the arc, so that the rotating plate 14 can only rotate within a range of 90 degrees.

[0065] Optionally, the fixed teeth 18 on the rotating plate 14 can also be distributed in a quarter to one-third fan shape, so that the rotating plate 14 can drive the electric push rod 8, the moving plate 2 and the fixed plate 1 to rotate at a corresponding angle to facilitate the replacement of the collection test strip 6.

[0066] Example 4, please refer to the details. Figure 4-6 .

[0067] Similar to Example 3, the difference lies in the addition of an automatic paper-feeding mechanism to automatically pick up and load the paper, thereby achieving automatic online continuous sampling. Specifically:

[0068] The lower surface of the mounting base 15 is fixedly provided with a base for supporting the mounting base 15 and the rotating mechanism and data collection device installed on it. The side of the base is provided with a paper box 20 for automatic paper feeding. The rotating mechanism can drive the electric push rod 8, the moving plate 2, and the fixed plate 1 to rotate 90 degrees through the rotating plate 14, so that the buffer pad 5 moves above the paper box 20. Then, the electric push rod 8 drives it to descend into the paper box 20 to complete the automatic paper feeding action. This can realize automatic paper changing, reduce the workload of the staff, improve work efficiency, and thus quickly and continuously collect data online.

[0069] The upper surface of the cardboard box 20 is provided with a rubber band release mechanism 21 for automatically releasing the rubber band to fix the test strip 6 on the buffer pad 5. The cardboard box 20 is also provided with a paper pressing mechanism 22 for pressing the test strip 6 to both sides of the buffer pad 5 and a top plate mechanism 23 for pressing the test strip 6 to the lower surface of the buffer pad 5.

[0070] Specifically, four sets of rubber band release mechanisms 21 are provided, and the four sets of rubber band release mechanisms 21 are respectively set at the four corners of the upper surface of the cardboard box 20. Each rubber band release mechanism 21 includes three sets of two mounting rods 211 fixedly set on the upper surface of the cardboard box 20. A rotating drum is rotatably set between the two opposite mounting rods 211 in each set. A conveyor belt 212 is set on the rotating drum. A second drive motor 213 is installed on the side surface of one of the mounting rods 211. The output shaft of the second drive motor 213 is connected to its corresponding rotating drum and is used to drive the conveyor belt 212 through the rotating drum. Rubber band fixing rods 214 are evenly fixed on the outer surface of the conveyor belt 212. The rubber band fixing rods 214 are hook-shaped and are used to hold rubber bands. When the rubber band fixing rods 214 are above the conveyor belt 212, their openings face outwards. When the rubber band fixing rods 214 are below the conveyor belt 212, their openings face inwards to facilitate the release of rubber bands.

[0071] Before use, the rubber bands are stretched out and hooked by the corresponding rubber band fixing rods 214 at the four corners. After the test strip 6 is wrapped onto the buffer pad 5, the drive motor 213 drives the rotating drum and the conveyor belt 212 to move the rubber band fixing rods 214 and the rubber bands hooked on them towards the inside of the cardboard box 20. When the corresponding rubber band fixing rods 214 rotate to the bottom of the conveyor belt 212, the rubber bands fall off the rubber band fixing rods 214 and leave the rubber band fixing rods 214 under their own elasticity and bind to the outside of the test strip 6, fixing it to the buffer pad 5, thus completing the automatic fixing of the test strip 6.

[0072] Furthermore, both the conveyor belt 212 and the rubber band fixing rod 214 are made of stainless steel to ensure that the rubber band fixing rod 214 will not loosen prematurely due to tilting when supporting the rubber band, thus ensuring the fixation of the collection test strip 6.

[0073] Specifically, two grooves 221 are symmetrically formed on two opposite side surfaces of the upper inner side of the cardboard box 20. The paper pressing mechanism 22 includes two electric push rods 222 respectively fixedly installed inside the two grooves 221. Each electric push rod 222 has a connecting rod 223 installed on its movable end. Two mounting plates 224 are symmetrically fixedly installed on both sides of the connecting rod 223. A paper pressing roller 225 is rotatably arranged between the two mounting plates 224. When the electric push rod 222 moves the buffer pad 5 downward through the moving plate 2 and the fixed plate 1, the buffer pad 5 presses the sample paper 6 placed on the cardboard box 20 downward and pulls it into the inner side of the cardboard box 20. At this time, the two electric push rods 222 are opened. The electric push rods 222 move the paper pressing roller 225 a certain distance through the connecting rod 223 and the mounting plate 224, pressing the sample paper 6 on both sides and pressing it tightly onto the buffer pad 5. Driven by the push rod 8, the paper continues to press down, pressing the top plate mechanism 23 downwards, causing the top plate mechanism 23 to press the sample paper 6 against the lower surface of the buffer pad 5. Then, the paper continues to press down until the buffer pad 5 moves to the set height. At this time, the sample paper 6 is pressed from bottom to top by the pressure roller 225 to the set position. Then, the drive motor 213 is turned on, which drives the drum and the conveyor belt 212 to drive the rubber band to detach from the rubber band fixing rod 214 and retract towards the buffer pad 5 under its own elastic force, pressing the sample paper 6 against the buffer pad 5. Then, the electric push rod 222 is turned on, which drives the pressure roller 225 to retract into the groove 221 through the connecting rod 223 and the mounting plate 224. At this time, the fixation of the sample paper 6 is completed. The electric push rod 8 drives the moving plate 2, the fixing plate 1 and the buffer pad 5 to be lifted, and then transferred to the aluminum plate foil blank roll through the rotating mechanism and the rotating plate 14 to continue online sampling.

[0074] Specifically, the top plate mechanism 23 includes four springs 232 installed on the upper surface of the bottom plate inside the cardboard box 20 and a top plate 231 fixedly installed on the top of the springs 232. In a static state, the four springs 232 push the top plate 231 to a height close to the pressure roller 225. When the buffer pad 5 is driven to move downward, it is used to press the middle of the sample paper 6 against the lower surface of the buffer pad 5 to fix the sample paper. The four springs 232 are evenly distributed at the four corners of the upper surface of the bottom plate of the cardboard box 20, providing more stable support.

[0075] Furthermore, a proximity switch 233 is installed at the center of the upper surface of the bottom plate of the cardboard box 20 to detect the movement of the top plate 231. The proximity switch 233 is electrically connected to the electric push rod 8 and the drive motor 213. When the top plate 231 is pressed down to a certain height in contact with or away from the proximity switch 233, the proximity switch 233 closes the electric push rod 8 and stops the pressing action. At the same time, the drive motor 213 is turned on to release the rubber band and fix the collection test paper 6. Then, the electric push rod 8 drives the moving plate 2, the fixed plate 1 and the buffer pad 5 to be lifted and transferred to the aluminum foil blank roll through the rotating mechanism and the rotating plate 14 for continued online collection. With the setting of the proximity switch 233, the collection test paper can be automatically fixed. The operation is simple and convenient, which greatly improves the work efficiency and thus better realizes fast and continuous online collection.

[0076] In Embodiments 3 and 4, a control switch or PLC controller can be installed on the mounting base 15, the base, or the cardboard box 20 to control the drive motor 1, drive motor 213, electric push rod 222, and proximity switch 233. In this case, the control switch or PLC controller is powered by an external power source.

[0077] Example 5, please refer to the details. Figure 7 and Figure 8 .

[0078] Similar to Example 4, the difference lies in the addition of an automatic paper feeding mechanism to automatically provide pre-cut test strips to the cardboard box 20, achieving a highly automated test strip replacement. Specifically:

[0079] The lower surface of the mounting base 15 is provided with a support block 26 for supporting it. The lower surface of the support block 26 is provided with a paper output box 25 for providing the sample test strip 6 and moving it above the paper box 20. The lower surface of the support block 26 is provided with a control box 24. The control box 24 is provided with a PLC controller for controlling the corresponding electronic components in the present invention. The lower surface of the control box 24 is provided with a base plate that is fixedly connected to the bottom side surface of the paper box 20, which serves to support and prevent moisture from the control box 24.

[0080] Specifically, a paper tube slot is provided inside the paper outlet box 25. A roll paper motor is installed on the outer surface of the paper outlet box 25. The output shaft of the roll paper motor penetrates into the paper tube slot and is connected to the roll paper tube 251. The roll paper tube 251 is used to place the rolled collection test strips 6. On the lower part of the side surface of the paper outlet box 25 close to the sleeve carton 20, a paper outlet 252 is provided. The collection test strip 6 comes out from the paper outlet 252 and is conveyed above the sleeve carton 20. An electric push rod three 253 is installed in the internal cavity of the paper outlet 252. The movable end of the electric push rod three 253 is installed with a cutting knife 254 through a knife holder. When discharging paper, it is controlled by the PLC controller in the control box 24. The roll paper motor is turned on. The roll paper motor drives the roll paper tube 251 to rotate, driving the collection test strip 6 to move from the paper outlet 252 to the sleeve carton 20. After rotating for a set corresponding time, the roll paper motor is turned off and the electric push rod three 253 is turned on. The electric push rod three 253 drives the cutting knife 254 to move downward through the knife holder to cut the collection test strip 6, completing the paper discharging work.

[0081] Embodiment Six. Specifically, please refer to Figure 9-11 .

[0082] It is roughly the same as Embodiment Two, with the difference that an automatic paper feeding mechanism is added on the basis of Embodiment Two, which can automatically separate the test strip from the buffer pad 5 after collection. Specifically:

[0083] A fixing block 27 is adhesively bonded between the buffer pad 5 and the fixing plate 1. A rubber band groove 28 is formed on the outer surface of the fixing block 27 near the fixing plate 1, which is convenient for the rubber band to clamp the collection test strip 6 on the buffer pad 5 and the fixing block 27. A paper feeding mechanism 29 is provided on the fixing block 27. The paper feeding mechanism 29 includes a driving motor three 291 fixedly installed in the middle of the outer surface of the fixing block 27. An empty slot is formed inside the fixing block 27. The top view section of the empty slot is in the shape of a Chinese character 'Ri'. Two moving rods 294 are slidably arranged at each of the two long sides inside the empty slot. A paper feeding roller 296 is rotatably arranged between the corresponding two moving rods 294. The two paper feeding rollers 296 are respectively arranged on both sides of the fixing block 27 and can be driven by the moving rods 294 to move along the length direction of the empty slot. One end of the moving rod 294 far from the paper feeding roller 296 is fixedly provided with a rack 295. The output shaft of the driving motor three 291 penetrates into the empty slot and is connected to a rotating shaft 292 through a coupling. Two gears two 293 are installed on the outer sides of both ends of the rotating shaft 292. The two gears two 293 are respectively meshed with the opposite racks 295.

[0084] Specifically, two racks 295 located on the same side are respectively set on the upper and lower sides of the gear 293 on the same side. The gear 293 meshes with the upper and lower racks 295 at the same time. When the drive motor 3 291 drives the gear 293 to rotate through the rotating shaft 292, the two racks 295 can drive their corresponding moving rods 294 and paper ejection rollers 296 to move outward at the same time to perform paper ejection operation or to retract inward to reset at the same time.

[0085] When it is necessary to replace the collection test strip 6 after the collection is completed, turn on the drive motor 291. The drive motor 291 drives the two gears 293 to rotate through the wheel axle 292. The two gears 293 drive the corresponding upper and lower racks 295 to move outward. The racks 295 drive the paper ejection roller 296 to move outward through the moving rod 294, pushing the collection test strip 6, which is fixed to the fixing block 27 and the buffer pad 5 by the rubber band, outward, so that the collection test strip 6 is separated from the rubber band, and the paper ejection operation is completed.

[0086] After the test strip 6 is detached from the rubber band, the rubber band automatically binds to the rubber band groove 28 on the fixing block 27, which will not affect the binding and fixing of the subsequent test strip 6. At the same time, the rubber band can be removed all at once after working for a period of time, avoiding the need to operate the rubber band every time and affecting work efficiency.

[0087] Optionally, a collection box can be installed near the material roll to collect the collected test strips 6 after collection, so that the collected test strips can be collected in a centralized manner for subsequent detection and quantitative evaluation.

[0088] Furthermore, paper output rollers and other components are installed inside the paper output box 25 to enable automatic paper output, thereby ensuring continuous automatic paper output of the sample paper 6.

[0089] In Embodiments 2 and 6, a control switch can be provided on the operation block 12 to control the electric push rod 8 and the drive motor 291. At the same time, a rechargeable or replaceable built-in battery can be installed inside the operation block 12 to power the electric push rod 8 and the drive motor 291.

[0090] Example 6 can also be used in Example 5 to form a highly automated aluminum powder collection device for aluminum plate and foil surfaces that integrates collection, paper feeding, and paper unloading functions.

[0091] The electric actuator 8, proximity switch 10, drive motor 1, drive motor 213, electric actuator 222, proximity switch 233, paper roll motor, electric actuator 3 253, drive motor 3 291, etc. used in this invention all adopt commonly used electronic components in the prior art. Their specific structures and working principles are common knowledge and will not be described in detail here.

[0092] Optionally, a PLC controller is installed in the control box 24, preferably a Siemens S7-200 PLC controller. All electronic components used in this invention are controlled by this PLC controller. The methods by which the PLC controller controls the electric push rod 8, proximity switch 10, drive motor 1, drive motor 213, electric push rod 222, proximity switch 233, paper roll motor, electric push rod 3 253, drive motor 3 291, etc. are all commonly used methods in the prior art, and the PLC controller and all electronic components are powered by an external power supply.

[0093] The present invention also provides a technical solution:

[0094] A method for quantitatively evaluating aluminum powder on the surface of aluminum plates, strips, and foils includes the following steps:

[0095] S1): Remove the collection strip after collecting aluminum powder from the collection device, and place the collection strip and grayscale card in a miniature photography studio in the laboratory for comparative observation.

[0096] S2): The miniature photography studio is enclosed on all sides and the top and bottom surfaces. The top cover can be opened. The inner surface is covered with pure white soft light cloth. The surrounding area is illuminated by LED lights with an illuminance of 1000-2500 lx and a color temperature range of 3000-5000 k. Then, the comparison is observed through the window opened on the top cover.

[0097] S3): Select the area with the darkest aluminum powder on the sample strip and compare it with the grayscale card;

[0098] S4): The grayscale value closest to the color of the darkest area of ​​aluminum powder on the test strip is identified as the surface aluminum powder residue level of the sample.

[0099] S5): Repeat the above steps when taking multiple samples and measurements, and select the highest grade among the results as the final grade.

[0100] Preferably, in step S2, the illuminance range of the LED lamp is 1500-2000 lx, and the color temperature range is 3200-4000 k.

[0101] Optionally, in step S2, a camera can be installed through the window on the upper cover to photograph the sample strip and grayscale card. During photography, the camera parameters should be fixed: exposure time typically 1 / 50 second, aperture f / 6.3, and focal length 50mm. After taking the photo, transfer it to a computer and use image processing software to measure the RGB values ​​of the sample strip. The grayscale level corresponding to the minimum RGB value on the grayscale card is the grayscale value of the product when the minimum RGB value is closest to and greater than the RGB value of a certain grayscale level on the grayscale card.

[0102] The grayscale card has 10 levels from 0 to 9, with the grayscale value increasing from low to high.

[0103] The grayscale rating can be further subdivided, with 91 levels from 0.0 to 9.0, namely: 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4... Levels 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.7, 7.8, 7.9, 8.0, 8.2, 8.3, 8.4, 8.5, 8.6, 8.7, 8.8, 8.9, 9.0.

[0104] All parts not disclosed in this invention are prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for collecting aluminum powder from the surface of aluminum plates, strips, and foils, characterized in that: The device includes a fixed plate and a movable plate. Two guide rods are fixedly mounted on the lower surface of the fixed plate. Through holes for the guide rods are provided on the movable plate. A spring is fixed between the movable plate and the fixed plate, and the spring is fitted onto the outside of the two guide rods. A buffer pad is provided on the upper surface of the fixed plate, and a sample paper is fixed to the buffer pad by a rubber band. An electric push rod is located in the middle of the lower surface of the movable plate. The movable end of the electric push rod is fixedly connected to the lower surface of the movable plate, and the fixed end of the electric push rod is mounted on an operating block. A handle is provided on the upper surface of the operating block. Two adjustable lifting rods are provided on the lower surface of the fixed plate. A proximity switch is installed at the top of each lifting rod and is electrically connected to the electric push rod. The device also includes a rotating mechanism and an automatic paper-feeding mechanism. After collection, the device automatically rotates 90 degrees away from the aluminum foil roll via the rotating mechanism, and automatically feeds and dispenses the paper via the automatic paper-feeding mechanism. The rotating mechanism includes a mounting base, on the lower surface of which a base is fixedly mounted to support the mounting base and the rotating mechanism and collecting device mounted thereon. A paper-feeding box for automatic paper feeding is mounted on the side of the base. The rotating mechanism drives an electric push rod, a moving plate, and a fixed plate to rotate 90 degrees via a rotating plate, moving the buffer pad above the paper-feeding box. Then, the electric push rod drives the pad to descend into the paper-feeding box, completing the automatic paper feeding action. The upper surface of the cardboard box is provided with a rubber band release mechanism for automatically releasing the rubber band to fix the test strip on the buffer pad. The cardboard box is also provided with a paper pressing mechanism for pressing the test strip to both sides of the buffer pad and a top plate mechanism for pressing the test strip to the lower surface of the buffer pad. The elastic band release mechanism is provided in four sets, and the four sets of elastic band release mechanisms are respectively set at the four corners of the upper surface of the cardboard box. The elastic band release mechanism includes three sets of two mounting rods fixedly set on the upper surface of the cardboard box. A rotating drum is rotatably set between the two opposite mounting rods in each set. A conveyor belt is set on the rotating drum. A second drive motor is installed on the side surface of one of the mounting rods. The output shaft of the second drive motor is connected to the corresponding rotating drum. Hook-shaped elastic band fixing rods are evenly fixed on the outer surface of the conveyor belt. The inner upper part of the cardboard box has two symmetrical grooves on two opposite side surfaces. The paper pressing mechanism includes two electric push rods that are fixedly installed inside the two grooves. Each electric push rod has a connecting rod installed at its movable end. Two mounting plates are fixedly installed symmetrically on both sides of the connecting rods. A paper pressing roller is rotatably arranged between the two mounting plates. The top plate mechanism includes a second spring installed on the upper surface of the bottom plate inside the cardboard box and a top plate fixedly installed at the top of the second spring.

2. The aluminum powder collection device for aluminum plate, strip, and foil surfaces according to claim 1, characterized in that: The guide rod is evenly provided with scale lines and corresponding numerical markings.

3. The aluminum powder collection device for aluminum plate, strip, and foil surfaces according to claim 1, characterized in that: The fixed end of the electric push rod is fixedly mounted on one side of the lower surface of the rotating plate. A rotating mechanism is provided on the other side of the lower surface of the rotating plate. The rotating mechanism also includes a drive motor installed in the mounting base. A reduction gearbox is installed on one side of the upper surface of the mounting base. The output shaft of the drive motor is connected to the input shaft in the reduction gearbox through a coupling. A gear is installed on the output shaft of the reduction gearbox. A fixed base is installed on the other side of the upper surface of the mounting base. A fixed shaft is installed on the fixed base. The end of the rotating plate is rotatably mounted on the fixed shaft. The side surface of the rotating plate is provided with fixed teeth, which mesh with the gear.

4. The aluminum powder collection device for aluminum plate, strip, and foil surfaces according to claim 1, characterized in that: A proximity switch two is installed at the center of the upper surface of the bottom plate of the cardboard box. The proximity switch two is electrically connected to the electric push rod one and the drive motor two, respectively.

5. The aluminum powder collection device for aluminum plate, strip, and foil surfaces according to claim 1, characterized in that: The lower surface of the mounting base is provided with a support block, the lower surface of the support block is provided with a paper output box, the lower surface of the support block is provided with a control box, and the lower surface of the control box is provided with a base plate fixedly connected to the bottom side surface of the paper box. The paper output box is provided with a paper tube groove, and a paper winding motor is installed on the outer surface of the paper output box. The output shaft of the paper winding motor passes through the paper tube groove and is connected to the paper tube. The lower part of the side surface of the paper output box near the paper box is provided with a paper outlet. An electric push rod three is installed in the internal cavity of the paper outlet three. The movable end of the electric push rod three is equipped with a cutting blade through a knife holder.

6. The aluminum powder collection device for aluminum plate, strip, and foil surfaces according to claim 5, characterized in that: A fixing block is provided between the buffer pad and the fixing plate. A rubber band groove is provided on the fixing block near the fixing plate. A paper ejection mechanism is provided on the fixing block. The paper ejection mechanism includes a drive motor three fixedly installed on the outer surface of the fixing block. A slot is provided inside the fixing block. Two moving rods are slidably provided on each of the two long sides of the slot. A paper ejection roller is rotatably provided between the corresponding two moving rods. The two paper ejection rollers are respectively provided on both sides of the fixing block and can be moved along the length of the slot by the moving rods. A rack is fixedly provided on the end of the moving rod away from the paper ejection roller. The output shaft of the drive motor three passes through the slot and is connected to the rotating shaft through a coupling. Gear two is installed on the outer side of both ends of the rotating shaft. The two gear two mesh with the corresponding racks.

Images