JP2006255766A - Finishing device for decorative metal plate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a finishing device for a decorative metal plate which eliminates dust and so on from the surface of the decorative metal plate, prevents dust and so on from adhering to the surface of the decorative metal plate and prevents the surface of the decorative metal plate from being flawed, in making the decorative metal plate such as a stainless steel plate, a color coated steel plate and an aluminum plate pass through a leveler or a protective film adhesion device. <P>SOLUTION: The finishing device for the decorative metal plate is composed of a clean booth 3 and a static eliminator 4. The clean booth 3 designed and installed to cover the leveler and/or the protective film adhesion device takes in outdoor air which is cleaned by an air cleaner 3b located on a roof 3a to increase the inner pressure. The static eliminator 4 jets ions to the whole width of the decorative metal plate P to neutralize static electricity on dust and so on attaching to the decorative metal plate P just before an opening 3c through which the decorative metal plate P is made to pass into the clean booth 3. It is further preferable to place, just before the static eliminator 4, an adhesion roller 5 which touches the whole width at least of the surface of the decorative metal plate P. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention can be applied to a cosmetic metal plate such as a stainless steel plate, a color iron plate, and an aluminum plate through a leveler device or when a protective film is attached to the surface of the cosmetic metal plate. In addition to removing dust, etc., it also prevents dust that floats in the factory from newly adhering to the surface of the cosmetic metal plate and keeps the surface clean, producing wrinkles on the surface of the cosmetic metal plate. The present invention relates to a finishing device for a metal sheet for makeup that is not allowed to be applied.

  The decorative metal plate wound in a coil shape is passed between a plurality of leveler rollers arranged in a staggered manner in the leveler device, so that the shape is corrected and processed into a flat plate or the like. At that time, dust or the like on the surface of the decorative metal plate gradually adheres to the leveler roller, and the dirty leveler roller is strongly pressed against the decorative metal plate, so that the surface of the decorative metal plate is Wrinkles occur and merchandise value is greatly impaired.

  The dust that adheres to the surface of the metal plate for cosmetics is not only dust that has already adhered to the metal plate for cosmetics when it is carried into the factory where the leveler device is installed, but also floats in the factory. There are dusts and the like, and these dusts and the like often adhere to the surface of the decorative metal plate due to static electricity. Therefore, many surface flaws of the decorative metal plate are generated from autumn to winter. In addition, since dust and the like adhering to the static electricity cannot be sufficiently removed even if compressed air or an adhesive remover is used, the leveler roller that comes into contact with the decorative metal plate is inevitably soiled. Cleaning and replacement are required, which is a cause of reduced productivity.

  When the cold-rolled strip is leveled by a roller leveler, the concentration of 0.5 to 5% by weight is applied to the upper and lower surfaces of the moving strip and the surface of each roll of the roller leveler. Washing and wetting of a cold-rolled strip, characterized in that the emulsion level cleaning oil is continuously sprayed from a spray nozzle to level the strip with a roller leveler while cleaning the upper and lower surfaces of the strip and the surface of each roll of the roller leveler. There is a leveling method (for example, see Patent Document 1). By using this method, it is possible to efficiently obtain products with extremely few defects such as indentation, roll restraint, and dirt on the surface during leveling, and periodic replacement of rolls is not required, which increases productivity. Although it is possible to prevent a decrease, it is difficult to use this method in a general coil center, etc., because a large-scale facility is required for the treatment of cleaning oil, etc., and there is a problem that the cost is increased. It happens.

  In addition, when hot leveling is performed on a thick plate that has undergone hot rolling or annealing, compressed air is sprayed onto the surface of the thick plate at least immediately before biting into the first roll during the leveling process. There is a method for preventing roll wrinkles in a thick plate leveling process characterized by removing surface adhering moisture (see, for example, Patent Document 2). This prevention method is a method of removing moisture adhering to the surface of the plank with compressed air, but it is difficult to sufficiently remove dust adhering to static electricity etc. simply by using compressed air, and dirt in the factory If the compressed air is compressed and sprayed, the surface of the plank plate becomes dirty and causes surface defects.

JP 51-117157 A Japanese Patent Laid-Open No. 51-17756

  It is also possible to stick a protective film on the surface of the cosmetic metal plate to prevent dust and the like from adhering to the surface of the cosmetic metal plate and preventing wrinkles from forming on the surface of the cosmetic metal plate. If the protective film is applied with dust or the like remaining on the surface of the decorative metal plate, naturally, the surface of the decorative metal plate is wrinkled, and the dust that floats in the factory after the protective film is applied. If the film adheres to the surface of the protective film, the roller in contact with the protective film becomes dirty and the roller is strongly pressed, so that even if the protective film is applied, wrinkles are generated on the surface of the cosmetic metal plate. It is. Therefore, even when a protective film is stuck on the surface of the decorative metal plate, dust and the like are removed from the surface of the decorative metal plate in advance, and the surface of the protective film is clean even after the protective film is attached. Therefore, regardless of whether or not a protective film is attached to the surface of the decorative metal plate, removal of dust and the like and maintenance after the removal are important.

  In this way, in the finishing process in which the cosmetic metal plate is passed through the leveler device or the protective film is attached to the surface of the cosmetic metal plate, the cosmetic metal plate is moved while being moved. Not only remove dust on the surface of the plate, but also keep the surface of the cosmetic metal plate and the protective film clean so that dust that floats in the air does not adhere to the moving cosmetic metal plate. It becomes important. Therefore, if a finishing booth is provided with a clean booth etc., the surface of the decorative metal plate can be maintained in a clean state, but after removing dust etc. outside the clean booth, It is difficult to send the cosmetic metal plate into the clean booth without touching it, and if the dust on the surface of the cosmetic metal plate is removed in the clean booth, the clean booth becomes dirty and the surface of the cosmetic metal plate Since dust and so on will adhere again, there is no point in using a clean booth.

  In view of the above-mentioned problems, the present invention is applied to cosmetic metal plates such as stainless steel plates, color iron plates, aluminum plates and the like when passing through a leveler device or when a protective film is attached to the surface of a cosmetic metal plate. While removing dust etc. from the surface of the metal plate, it prevents the dust floating in the factory from adhering to the surface of the cosmetic metal plate and keeps the surface clean, so that the surface of the cosmetic metal plate It is an object of the present invention to provide a finishing apparatus for a metal sheet for cosmetics that does not cause wrinkles.

  As a result of intensive studies to solve the above problems, the present inventor provided a clean booth covering the leveler device and / or the protective film attaching device, and installed an air purifier on the top of the clean booth to increase the internal pressure. If the outside air is cleaned and taken in, the pressure inside the clean booth is high, so the clean air taken from the top plate air purifier always passes through the opening from the clean booth to the surface of the cosmetic metal plate. As it is discharged toward the outside, it can be taken into the clean booth while keeping its surface clean without touching the dirty air inside the factory, and the clean booth opening. In order to neutralize static electricity such as dust adhering to the cosmetic metal plate just before the part, a static eliminator is installed, and ions are injected over the entire width of the cosmetic metal plate. In addition, it becomes possible to neutralize and easily remove dust adhering to static electricity, and even if dust etc. cannot be completely removed by the static eliminator, after passing through the static eliminator, the inside of the clean booth as described above Since clean air is always blown through the opening to the metal plate for cosmetics, it has been found that these dusts can be completely blown off, and that no flaws are generated on the surface of the metal plate for cosmetics in the finishing process. Thus, the present invention has been completed.

  That is, the present invention relates to a leveler device in which a cosmetic metal plate is passed between a plurality of leveler rollers arranged in a staggered manner and / or a protective film sticking device that sticks a protective film on at least the surface of the cosmetic metal plate. A clean booth that cleans the outside air with an air purifier installed on the top plate in order to increase the internal pressure, and an opening that allows a cosmetic metal plate to pass through the clean booth. A cosmetic metal plate, comprising: a static eliminator that injects ions for neutralizing static electricity such as dust immediately attached to the cosmetic metal plate over the entire width of the cosmetic metal plate This is a finishing device.

  Also, if the clean booth is a clean booth whose internal pressure is 100 to 500 Pa higher than the external air pressure, clean air can be easily discharged to the outside of the clean booth along the surface of the metal plate for cosmetics. Furthermore, if an adhesive roller that contacts at least the entire length of the surface of the decorative metal plate is installed immediately before the static eliminator, dust or the like that is not charged with static electricity can be removed by the adhesive roller. It is preferable that dust is not scattered in the factory.

  A finishing device for a cosmetic metal plate according to the present invention is a leveler device in which a cosmetic metal plate is passed between a plurality of leveler rollers arranged in a staggered manner and / or a protective film on at least the surface of the cosmetic metal plate. A clean booth that covers the protective film sticking device to be attached and has a clean booth that cleans the outside air with an air purifier installed on the top plate to increase the internal pressure. Because the pressure is high, the clean air taken in from the air cleaner of the top plate is always exhausted sufficiently along the surface of the cosmetic metal plate through the opening of the clean booth, so the cosmetic metal plate is dirty in the factory. It can be taken into the clean booth while keeping the surface clean without being exposed to air. Because the air is filled with air, the surface of the metal plate for cosmetics can be kept clean during the finishing process by the leveler device and the protective film sticking device, and the makeup is applied just before the opening of the clean booth. Since it is equipped with a static eliminator that sprays ions for neutralizing static electricity such as dust adhering to the metal plate over the entire width of the cosmetic metal plate, it can be equipped with compressed air, sticky remover, etc. Clean metal in the clean booth always passes through the opening as described above after being neutralized by ions ejected by dust that adheres due to static electricity that cannot be removed enough even after use and passes through the static eliminator Since these dusts can be completely blown off by being blown onto the plate, the cosmetic metal plate abuts without causing wrinkles on the surface of the cosmetic metal plate in the finishing process. Since neither dirt roller cleaning or replacement of the rollers it is possible to improve the unnecessary and productivity.

  In addition, when the clean booth is a clean booth whose internal pressure is 100 to 500 Pa higher than the external pressure, it is a pressure that can be sufficiently increased only by the air purifier, so that it does not require excessive equipment and only this If there is a pressure difference, clean air can always be sufficiently discharged through the opening of the clean booth along the surface of the cosmetic metal plate, and at least the width of the cosmetic metal plate just before the static eliminator. In the case where an adhesive roller that is in contact with the entire length is installed, dust that is not charged with static electricity can be removed by the adhesive roller, so that no dust is scattered in the factory.

Hereinafter, a finishing apparatus for a decorative metal plate according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is an explanatory perspective view of one embodiment of a finishing apparatus for a metal sheet for cosmetics according to the present invention, FIG. 2 is an explanatory side view of the finishing apparatus for a metal sheet for cosmetics according to FIG. 1, and FIG. FIG. 4 is a side explanatory view schematically showing a leveler device and a protective film sticking device installed in a clean booth. FIG.

  In the drawings, P is a cosmetic metal plate finished by the finishing device for a cosmetic metal plate according to the present invention, and especially a cosmetic metal plate such as a stainless steel plate, a color iron plate, an aluminum plate, etc., which requires a beautiful surface. It is. For example, in the embodiment shown in FIG. 4, the finishing device for a decorative metal plate according to the present invention has a decorative metal plate P inserted between a plurality of leveler rollers 1 a, 1 a,. Although the protective film sticking apparatus 2 which sticks the protective film 2a on at least the surface of the leveler apparatus 1 and the metal plate P for cosmetics is provided, at least one of the leveler apparatus 1 and the protective film sticking apparatus 2 is provided. What is necessary is just to have the leveler apparatus 1, the metal sheet P for cosmetics wound by the coil shape is used irrespective of the presence or absence of the protective film sticking apparatus 2, and only the protective film sticking apparatus 2 is provided. If it is, a cut-plate-shaped metal plate P for makeup is used.

  3 is a leveler device 1 in which a cosmetic metal plate P is passed between a plurality of leveler rollers 1a, 1a,... Arranged in a staggered manner and / or a protective film 2a is attached to at least the surface of the cosmetic metal plate P. It is a clean booth that covers the protective film sticking device 2 to be taken in and cleans the outside air with an air purifying device 3b installed on the top 3a in order to increase the internal pressure. This clean booth 3 is easily charged when the side walls are made of metal plates, etc., so it is easy to attract dust in the factory. For example, a plastic or antistatic sheet is attached to a wooden or metal frame. It should be configured. The clean booth 3 is a pressure that can be sufficiently increased only by the air cleaning device 3b if the internal pressure is 100 to 500 Pa higher than the external pressure by the air cleaning device 3b. In addition, if there is such a pressure difference, it is preferable that clean air can be sufficiently exhausted to the outside along the surface of the decorative metal plate P through the opening 3c of the clean booth 3.

  4 is a width of the metal plate P for making ions to neutralize static electricity such as dust adhering to the metal plate P just before the opening 3c through which the metal plate P for makeup passes through the clean booth 3. It is a static elimination apparatus which injects over the full length. If the static eliminator 4 is equipped with a powerful compressor or the like so that ions can be ejected vigorously, it can neutralize static dust and the like and at the same time reliably blow off the dust and the like. It is.

  An adhesive roller 5 is in contact with at least the entire width of the surface of the decorative metal plate P immediately before the static eliminating device 4. If the adhesive roller 5 is mounted, it is preferable because dust that is not charged can be removed, so that dust is not scattered in the factory. The adhesive roller 5 is for removing dust and the like adhering to the surface of the decorative metal plate P. Therefore, it needs to be replaced and cleaned when used to a certain extent, but the leveler rollers 1a, 1a,. Unlike the roller installed inside the device, it is simply installed outside the clean booth 3 as shown in FIG. 3, so it is easy to remove and there is no need to stop the entire device for a long time when replacing it. The productivity is not greatly reduced.

  In order to actually install the finishing device for a metal sheet for makeup according to the present invention having such a configuration, for example, as shown in FIG. 4, a clean booth covering the leveler device 1 and the protective film sticking device 2 is provided. 3 is installed. The structure of the clean booth 3 is, for example, provided with a metal frame as shown in FIGS. 1 to 4 and two air cleaning devices 3b arranged on the top plate 3a. It is constructed by mounting an antistatic sheet. Furthermore, it is preferable that the side surface of the clean booth 3 can be freely opened and closed as shown in FIGS. 1 to 3 because the leveler device 1 and the protective film sticking device 2 in the clean booth 3 can be easily repaired and inspected.

  The static eliminator 4 is installed immediately before the opening 3c of the clean booth 3. After neutralizing static electricity dust and the like and blowing it away with clean air from the clean booth 3, before the metal plate P for cosmetics touches the dirty air in the factory, it enters the clean booth 3. It can be sent in. Therefore, the static eliminator 4 is preferably installed within 50 cm from the opening 3c of the clean booth 3. Further, when ions are ejected from directly above the decorative metal plate P, the neutralized dust and the like are pressed against the decorative metal plate P, and most of the neutralized dust and the like are in the cosmetic metal plate. Since it remains on the surface of P, it is necessary to eject ions with a slight angle. As a result of the experiment, the effect of removing dust or the like was the highest when ions were sprayed so that the depression angle was 45 degrees with respect to the decorative metal plate P fed from a substantially horizontal direction.

  When the adhesive roller 5 is used, if the adhesive roller 5 is provided immediately before the static eliminator 4 and dust or the like is removed by the adhesive roller 5 so that the cosmetic metal plate P passes through the static eliminator 4, It is preferable that new dust or the like hardly adheres to the decorative metal plate P. It is possible to install the adhesive roller 5 immediately after the static eliminator 4 with the positions of the adhesive roller 5 and the static eliminator 4 reversed. In this case, the adhesive roller 5 is an opening of the static eliminator 4 and the clean booth 3. Since it is located between the adhesive roller 5 and the adhesive roller 5, it becomes difficult to clean and replace the adhesive roller 5, and not only the workability is deteriorated, but also the dust neutralized by the static eliminator 4 is removed by the adhesive roller 5. Therefore, the adhesive roller 5 must be replaced in a short period of time, which is not preferable because productivity decreases.

  SUS304 wound in a roll and having a thickness of 1 mm and a width of 1,000 mm was passed through the leveler apparatus 1, and the number of surface defects having a maximum length of 2 mm or more per square meter was measured. In the comparative example, the measurement was performed using the leveler device 1 in which the clean booth 3, the static eliminating device 4, and the adhesive roller 5 were not installed at all. Further, in Example 1, the leveler device 1 in which only the clean booth 3 and the static elimination device 4 are installed is used, and in Example 2, the measurement is performed using the leveler device 1 in which the adhesive roller 5 is further installed immediately before the static elimination device 4. It was. Further, the leveler rollers 1a, 1a,... Are sufficiently cleaned and have a clean surface. In the comparative examples and the examples, the SUS304 wound in a roll shape is leveled at 100 m and 1,000 m. The number of surface defects was measured for each. In the example, ELIMINOSTAT (model number BOS) manufactured by Sicid Electrostatic Co., Ltd. was used as the static eliminator 4 and was installed so that ions were ejected at a depression angle of 45 degrees. The adhesive roller 5 is a roller equipped with a Betaron (adhesive rubber roll) manufactured by Meiwa Rubber Industry Co., Ltd., and a thin clean module unit (model number BV-) manufactured by Shinei Sangyo Co., Ltd. is used as the air purifier 3b of the clean booth 3. Two R10H1L) were installed on the top 3a. The measurement results are shown below.

  As shown in the above table, in the comparative example, an average of 22.5 surface defects were generated per square meter, whereas the average surface defect measured in Example 1 was 2.5. By installing the static eliminator 4, surface flaws were reduced by about 89%. Furthermore, in Example 2 in which the adhesive roller 5 was installed, no surface flaws occurred.

  In the case of a cosmetic metal plate P such as a brightly annealed stainless steel plate, surface flaws having a longest portion of 2 mm or more are clearly visible to the naked eye. The product value is low. On the other hand, the finishing device for a decorative metal plate according to the present invention as in the first and second embodiments does not require a large-scale facility, and only covers the leveler device 1 and / or the protective film sticking device 2. Although it is a simple finishing device that only requires a clean booth 3 or a static eliminator 4 installed just before the opening 3c of the clean booth 3, and there are few consumables, the running cost is low, The generation of surface flaws can be greatly reduced, and productivity can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective explanatory view of one embodiment of a finishing apparatus for a decorative metal plate according to the present invention. It is side surface explanatory drawing of the finishing apparatus of the metal plate for cosmetics of FIG. It is perspective explanatory drawing of the other Example of the finishing apparatus of the metal plate for cosmetics concerning this invention. It is side explanatory drawing which shows typically the leveler apparatus and protective film sticking apparatus which were installed in the clean booth.

Explanation of symbols

1 Leveler device
1a Leveler roller 2 Protective film application device
2a Protective film 3 Clean booth
3a Top plate
3b Air purifier
3c Opening 4 Static eliminator 5 Adhesive roller P Cosmetic metal plate

Claims (3)

  At least the surface of the leveler device (1) and / or the cosmetic metal plate (P) in which the cosmetic metal plate (P) is passed between the plurality of leveler rollers (1a, 1a,...) Arranged in a staggered pattern. The protective film sticking device (2) for sticking the protective film (2a) is installed and the outside air is cleaned by the air purifier (3b) placed on the top plate (3a) to increase the internal pressure. Clean booth (3) to be taken in, and dust adhering to the cosmetic metal plate (P) just before the opening (3c) through which the cosmetic metal plate (P) is passed into the clean booth (3) A finishing apparatus for a cosmetic metal plate, comprising: a static eliminator (4) for ejecting ions for neutralizing static electricity over the entire width of the cosmetic metal plate (P).   The finishing device for a metal plate for cosmetics according to claim 1, wherein the clean booth (3) is a clean booth whose internal pressure is 100 to 500 Pa higher than the external pressure. The finish of a cosmetic metal plate according to claim 1 or 2, wherein an adhesive roller (5) is provided immediately before the static eliminator (4) so as to be in contact with the entire length of the surface of the cosmetic metal plate (P). apparatus.

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