JP2000334366A - Strip plate coating equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively produce a laminated steel panel having a rich surface pattern by providing a film laminating device for forming and laminating a film on a running strip panel and a roll printer for printing a desired pattern on the film on the upper surface of the strip panel through a plate cylinder roll. SOLUTION: In the strip steel panel running line of strip panel coating equipment, the substrate treatment to a strip steel panel 16 in a substrate treatment device 4 and the undercoating to the rear surface of the strip steel panel in a precoating device 5 are applied to a strip steel panel 16 and the coated strip steel panel is dried in a preheating device 6. After the treatment in the preheating device 6, a film is applied to the upper surface of the strip steel panel 16 by a hot-melt coater 7. Thereafter, various patterns are printed on the surface of the film by a roll printer 15. It is pref. to employ a gravure roll printer for pressing a plate cylinder roll to the strip steel panel 16 in the roll printer 15. Ink is bonded to the plate cylinder roll from an ink sump through a pickup roll to be transferred to the surface of the film on the strip steel panel 16.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a facility for surface-treating a running strip unwound from a rewinding machine while the strip is running. The present invention relates to a strip coating apparatus for applying a film by applying a film.

[0002]

2. Description of the Related Art When a steel plate is used for an outer shell plate of a home appliance, a ceiling plate in a room, or an outer plate or an interior plate of a transport machine,
In order to increase the water resistance and corrosion resistance of the surface of the steel sheet and to maintain a beautiful appearance of the surface, a surface treatment such as application of a film to the surface of the steel sheet and painting is performed. Conventionally, as a method for coating a surface of a steel sheet, a method called so-called hot melt coating, in which a film is directly formed and attached to a steel sheet, is known. Further, there is also known a technique in which a film having a design property, whose surface is colored in advance, is attached to a steel plate or printed directly on the steel plate. A conventional steel plate coating facility will be described with reference to FIGS.

The steel sheet coating equipment shown in FIG. 3 is an equipment having the above-described hot melt coating coating apparatus. The strip steel sheet 16 is unwound from the unwinding machine 1, passes through the entrance looper 2 and the washing zone 3, and is subjected to necessary undercoat treatment by the undercoat treatment device 4. Sent to 6. After the heating device 6, the strip steel plate 16 is applied with a film on the upper surface by a hot melt coater 7, processed by a finishing coating device 8 and a finishing heating device 9, and then pressed by an embossing roll 10, whereby the hot steel is pressed. The film pattern on the upper surface of the steel sheet formed by the melt coater 7 is provided with an uneven pattern pattern, and is wound up by the winder 12 via the exit looper 11.

[0004] The equipment shown in FIG. 4 is a coating equipment in which a decorative film is attached to a steel strip to give a variety of appearances. After the undercoating and, if necessary, the finishing coater 8 has been applied, films having been subjected to various prints by the film laminator 13 in the final stage are attached to the upper surface of the steel plate.

FIG. 5 shows a facility for printing directly on a steel strip, in which a colorless or colored pattern is printed on a steel strip 16 by an offset printer 14 after painting by a pre-coating device 5. In the examples of FIGS. 3 to 5, the same steps are denoted by the same reference numerals, and redundant description thereof will be omitted.

[0006]

Among the conventional coating equipment of this type, the one shown in FIG. 3 described above has a warmth as compared with a case where a film is pasted on a steel strip and the surface of the steel strip is directly colored. It has a certain appearance and is excellent in softness and water resistance. Therefore, it is used, for example, as a ceiling plate for a home unit bath, etc., but the film to be attached is plain (one color), lacks design, and Is limited.

[0007] In the embodiment shown in Fig. 4 in which a printed film is attached at the final stage, a coated steel sheet having a very wide variety of appearances can be obtained by attaching a gravure-printed film to a steel strip in advance. It is suitable for use as an outer panel of interior equipment of ordinary houses, but it is very expensive because it is gravure-printed on a film and then attached to the film. In addition, when printing directly on a steel strip as shown in FIG. 5 without using a film, if gravure printing is used, there is a problem in terms of life such as abrasion of a plate cylinder roll and deformation of an engraved portion. Printer, which is inferior in quality to the pattern printed on the film, and has problems in terms of water resistance and corrosion resistance.

Accordingly, the present invention is to provide a coating production facility for a film laminated strip having an inexpensive and beautiful appearance, and having excellent water resistance and corrosion resistance.

[0009]

According to the present invention, there is provided a strip coating apparatus installed in a strip running line from a rewinding machine to a winding machine through a series of strip processing steps. It has a film sticking device that generates and sticks a film to a band plate, and a roll printing device that is installed downstream of the film sticking device and prints a desired pattern pattern on a film on the band plate upper surface via a plate cylinder roll. Strip coating equipment is provided.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a schematic view showing an entire strip steel sheet traveling line from a rewinding machine to a winding machine of a strip steel sheet coating facility according to an embodiment of the present invention. The same parts as those in FIGS. 3 to 5 described above with reference to FIG.
Details of these parts are omitted as much as possible for the description of the present invention. After the steel strip 16 sent from the rewinding machine 1 passes through the entrance looper 2 and the cleaning zone 3, is subjected to a base treatment in the base treatment device 4 and a backcoating in the pre-coating device 5, and then dried in the pre-heating device 6. Until the processing is performed, it is the same as the conventional example of FIGS. After the treatment by the heating device 6, a film is formed on the upper surface of the strip steel plate 16 by the hot melt coater 7 and the film is attached. After that, various patterns are printed on the film surface on the upper surface of the strip steel plate 16 by the roll printing device 15.

The roll printing apparatus 15 preferably employs a gravure type roll printer for pressing a plate cylinder roll 17 against a steel strip 16 as shown in FIG. In the gravure method, ink is attached to the plate cylinder roll 17 from the ink reservoir 18 via the pickup roll 19, and is transferred to the film surface of the strip steel plate 16, whereby a high quality surface coating can be obtained. In the present invention, an offset type roll printer as shown in FIG. 2B may be used instead of the gravure type printer. In this case, the pattern of the plate cylinder roll 17 is transferred from the plate cylinder roll 17 to the film surface of the strip steel plate 16 via the offset roll 20.

The strip steel plate 16 having the pattern printed on the upper surface of the film as described above is finish-dried by the subsequent finishing heating device 9, and another film is laminated on the upper surface of the film of the strip steel plate 16 by the film laminator 13. It is wound up by the winder 12 via the side looper 11, and is taken out as a product.

The film laminating process by the film laminator 13 at the final stage is for improving the water resistance and the like, and may be omitted depending on the product. Further, the rewinding machine 1 and the winding machine 12 are arranged to rewind the upper side of the roll, upper side rewinding, or lower side rewinding, lower side rewinding (that is, outer winding, inner winding).
It goes without saying that any of these methods may be used.

[0014]

As described above, according to the present invention, a gravure type or offset type printing is applied to a film surface after a film is directly formed and attached to a steel strip. The pattern can be applied to the surface of the steel sheet, and another film is laminated to protect the printed film surface, which increases the water and corrosion resistance, is inexpensive, has a rich surface pattern, and is a versatile laminated steel sheet Is obtained. Even in the case of gravure printing, in the present invention, since a film is formed on the upper surface of the strip steel plate by the hot melt coater and gravure printing is performed thereon, abrasion of the plate cylinder roll and deformation of the engraved portion of the roll surface are prevented.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an entire strip steel sheet traveling line from a rewinding machine to a winding machine of a steel strip coating apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic view illustrating various roll printers used in the present invention.

FIG. 3 is a schematic diagram showing an entire strip steel sheet traveling line from a rewinding machine to a winder of a conventional strip steel sheet coating facility.

FIG. 4 is a schematic diagram showing an entire strip running line from a rewinding machine to a winding machine of a strip coating apparatus according to another conventional example.

FIG. 5 is a schematic view showing the entire strip running line from a rewinding machine to a winding machine of a strip steel sheet coating facility according to still another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unwinding machine 3 Cleaning zone 4 Base treatment apparatus 5 Pre-coating apparatus 6 Pre-stage heating apparatus 7 Hot melt coater 9 Finishing heating apparatus 12 Winding machine 13 Film laminator 15 Gravure type roll printing apparatus 16 Strip steel plate

Claims (2)

[Claims] 1. A film for producing and affixing a film to a running strip in a strip coating apparatus installed in a strip running line from a rewinding machine to a winding machine through a series of strip processing steps. A strip coating apparatus comprising: a sticking device; and a roll printing device that is installed downstream of the film sticking device and prints a desired pattern pattern on a film on an upper surface of the strip via a plate drum roll. 2. The apparatus according to claim 1, further comprising a film laminating apparatus provided downstream of said roller printing apparatus and for laminating a second film on a print surface of a film on an upper surface of said strip. Strip plate painting equipment.