JP2004195366A - Emboss pattern coating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a metallic siding material with high grade feeling cannot be manufactured because an emboss pattern cannot be surely coated with a coating. <P>SOLUTION: When the position of a work W fed to a transfer conveyor 12 is determined by a laser marker 13, a work detection sensor 14 detects the supply of the work W and transmits a conveyor stop drive signal for stopping driving the conveyor 12. The position of a protrusion plate 9 of a coating roll 5 and the position of the emboss pattern F of the work W are synchronized, and a proximity sensor 10 is activated by rotation of the coating roll 5, and a conveyor drive signal is outputted to start driving the conveyor 12. While a work sensing sensor 15 is detecting the work W, the driving of the conveyor 12 is continued in a state of reserving the conveyor stop drive signal, and the work W is inserted between the coating roll 5 and a pressurizing roll 6 for coating the work W. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a metal siding decoration method, for example, and relates to a coating method synchronized with an emboss pattern of an emboss pattern on a plate material.
[0002]
[Prior art]
Metal siding formed by forming an embossed pattern protruding on the surface of a long plate material, and combining this embossed pattern with multiple sets of embossed patterns at the same pitch in the length direction of the plate material Conventionally, there is no coating apparatus that applies a color different from the ground color of the plate material to the embossed pattern.
[0003]
It has a plate cylinder, blanket cylinder (coating roll) and impression cylinder (pressure roll), and transfers the paint adhered to the plate cylinder to the rubber blanket surface of the blanket cylinder and is supplied between the blanket cylinder and the impression cylinder. There is an offset printing method of transferring a paint to a plate material which has been used, but it is impossible to apply the above-mentioned different colors in the metal siding material by this offset printing method.
[0004]
In order to apply a color different from the ground color of the plate material to the emboss pattern of the embossed pattern protrudingly formed on the surface of the long plate material, a method of hand painting using a brush or the like has been used.
[0005]
[Problems to be solved by the invention]
As described above, the only way to apply a color different from the ground color of the plate material to the embossed pattern of the embossed pattern protrudingly formed on the surface of the long plate material is by hand coating using a brush or the like. There has been a problem that the coating material cannot be reliably applied to the embossed pattern and a high-quality metal siding material cannot be produced.
[0006]
The present invention has been made in order to solve the above-described conventional problems, and an object thereof is to be able to reliably apply a paint to an embossed pattern, and particularly to a work including an embossed pattern. To provide an embossed pattern coating method that can apply a color different from the color applied to the entire surface of the embossed pattern to a high-quality work (for example, a metal siding material). It is.
[0007]
[Means for Solving the Problems]
In order to achieve the above-described object, the embossed pattern coating method according to the present invention is configured such that the work supplied to the conveyor is driven between the rotating application roll and the pressure roll by driving the conveyor. The embossed pattern is coated by inserting the relief plate provided on the surface of the application roll into contact with the surface of the embossed pattern on the surface of the work to apply the paint adhered to the relief plate onto the surface of the embossed pattern. An application roll rotation detection sensor that operates each time the application roll rotates, a position determination unit that determines the position of the work, and a work detection sensor that detects supply of the work and outputs a conveyor stop drive signal to the conveyor drive unit And a work sensor for outputting a hold signal for holding a conveyor stop drive signal to the conveyor drive unit while the work is being sensed. When the position of the work supplied to the feed conveyor is determined by the position determining means, the work detection sensor detects the supply of the work and outputs a conveyor stop drive signal to the conveyor drive unit to stop driving the transport conveyor. In this way, the position of the letterpress and the position of the embossed pattern are synchronized, and then the rotation of the application roll activates the application roll rotation detection sensor, outputs a conveyor drive signal to the conveyor drive unit, and starts driving the conveyor. While the work detection sensor is sensing the work, the conveyor stop drive signal is kept on hold, the drive of the conveyor is continued, and the work is conveyed between the application roll and the pressure roll. The coating was performed by inserting.
[0008]
Therefore, it is possible to easily and reliably synchronize the position of the relief plate provided on the surface of the coating roll with the position of the embossed pattern on the surface of the work, and to reliably apply the paint to the embossed pattern. . In particular, a color different from the color applied to the entire surface of the work including the embossed pattern can be applied to the embossed pattern, so that a high-quality work (for example, a metal siding material) can be obtained.
[0009]
Further, in the method for coating an embossed pattern according to the present invention, in the method for coating an embossed pattern according to the above-described present invention, the work is formed by projecting and forming an embossed pattern on the surface of a long plate material. The pattern is a set of multiple types of embossed patterns.Many sets of embossed patterns are repeatedly formed at the same pitch in the length direction of the plate material. Is provided on the surface of the.
[0010]
Therefore, it is possible to apply a color different from the color applied to the entire surface of the work including the multiple sets of embossed patterns to each embossed pattern of the embossed pattern, and to provide a high-quality work (for example, metal siding). Material).
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described with reference to the drawings.
[0012]
FIG. 1 is a schematic structural explanatory view of a coating apparatus for performing an embossed pattern coating method according to the present invention, and FIG. 2 is a perspective view of a work (material to be coated).
[0013]
The coating apparatus A for carrying out the embossed pattern coating method according to the present invention is roughly composed of a coating roll mechanism 1 and a conveyor mechanism 2 for conveying a material to be coated.
[0014]
The application roll mechanism 1 includes a pair of left and right support plates 3 and 4 serving as roll support mechanisms. The support plates 3 and 4 include an application roll 5, a pressure roll 6, and a roll coater mechanism. The two doctor rolls 7 and 8 are rotatably supported, and the application roll 5, the pressure roll 6, and the doctor rolls 7 and 8 are rotated by rotation driving means (not shown). It is.
[0015]
On the surface of the application roll 5, a relief plate 9 having the same shape as the embossed pattern F protrudingly formed on the surface of a work W which is a material to be described later is arranged in the same arrangement pattern as the embossed pattern 21 of the embossed pattern F. It is attached to. These relief plates 9 are formed of a rubber plate.
[0016]
The pressure roll 6 is disposed below the application roll 5 and close to the pressure roll 6, and two doctor rolls 7 and 8 are for supplying paint to the application roll 5. When the paint is supplied between the doctor rolls 7 and 8, the paint adheres to the doctor roll 8, and when the relief 9 of the application roll 5 contacts the doctor roll 8, the paint is supplied to the relief 9. It is.
[0017]
A sensor actuating member 10A is attached to the right end face 5a of the application roll 5, and a proximity sensor 10 is attached to the support plate 4 with its sensing portion 10B corresponding to the actuating member 10A.
[0018]
The transport conveyor mechanism 2 includes a gantry 11, and the gantry 11 has a transport conveyor 12 mounted thereon. Further, a laser marker 13 as a position determining means, and a work detection sensor 14 and a work detection sensor 15 each constituted by a work detection photoelectric sensor are arranged on the gantry 11. The work detecting sensor 14 has a light projecting part 14a and a light receiving part 14b, and the work detecting sensor 15 has a light projecting part 15a and a light receiving part 15b.
[0019]
Each time the application roll 5 makes one rotation, the proximity sensor 10 causes the sensor operating member 10A attached to the application roll 5 to approach and turn on the sensing unit 10B, and a conveyer drive constituted by control means such as a computer. A conveyor drive signal is output to a section (not shown) to rotate the transport conveyor 12 and, at the same time, constitutes an application roll rotation detection sensor that transmits an ON signal to the work detection sensor 14 and the work detection sensor 15. is there.
[0020]
The work detection sensor 14 enters an operating state in response to an ON signal from the proximity sensor 10, and a light beam is emitted from the light emitting unit 14a toward the light receiving unit 14b. Then, the work detection sensor 14 outputs a conveyor stop drive signal to the conveyor drive unit by driving the conveyor 12 by cutting off the light beam at the end of the work W newly supplied to the conveyor 12 to be described later. Function to stop the operation.
[0021]
The work sensing sensor 15 enters an operating state in response to an ON signal from the proximity sensor 10, and a light beam is emitted from the light emitting unit 15a toward the light receiving unit 15b. The work detection sensor 15 functions to output a hold signal for holding the conveyor stop drive signal while the work W is being sensed.
[0022]
Further, the laser marker 13 for determining the position of the work W is used for aligning the mark position A of the front end of the embossed pattern F on the front side of the work W as a reference.
[0023]
As shown in FIG. 2, the work W is formed by projecting and forming an embossed pattern F on the surface of a long plate material 20. The embossed pattern F is composed of a plurality of embossed patterns 21 as one set. Is repeatedly formed at the same pitch P in the length direction of the plate material 20.
[0024]
Next, a method of applying the coating to the embossed pattern F on the surface of the work W using the coating apparatus A configured as described above will be described.
[0025]
Each of the application roll 5, the pressure roll 6, and the doctor rolls 7, 8 is rotated in the direction of the arrow shown in FIG. 1 by operating a rotation driving unit (not shown). For this purpose, the paint is supplied to the relief plate 9 of the application roll 5 by the contact of the doctor roll 8.
[0026]
When the conveyor 12 is driven and the work W is supplied to the rotating conveyor belt 12A, the mark position A of the embossed pattern F on the surface of the work W is adjusted to the laser beam 13A from the laser marker 13. , The front end of the work W blocks the light beam of the work detection sensor 14. For this purpose, the work detection sensor 14 detects the press-in of the work W, outputs a conveyor stop drive signal to the conveyor drive unit, stops the drive of the transport conveyor 12, and stops the rotation of the conveyor belt 12A.
[0027]
That is, when the position of the work W supplied to the transport conveyor 12 in the driven state is determined by the laser marker 13 as the position determining means, the work detection sensor 14 detects the supply of the work W and drives the conveyor to stop. By stopping the driving of the conveyor 12 by outputting a signal, the position of the relief plate 9 and the position of the embossed pattern F are synchronized.
[0028]
Next, the rotation of the application roll 5 causes the sensor operating member 10A attached to the application roll 5 to move, and when the sensor operating member 10A senses the sensor operating member 10A, the sensor 10B The conveyor drive signal is output to the drive unit. Therefore, the driving of the conveyor 12 is started, and the conveyor belt 12A starts rotating.
[0029]
The work W is conveyed by the rotation of the conveyor belt 12A and is inserted and moved between the application roll 5 and the pressure roll 6, so that the rotating relief plate 9 of the application roll 5 is embossed on the surface of the work W. F, the paint adhered to the relief plate 9 is applied to the surface of the embossed pattern 21 in contact with the surface of the embossed pattern 21, and the work W passes between the application roll 5 and the pressure roll 6 to perform the next step. Moved to
[0030]
In this case, the work sensing sensor 15 picks up the drive after the start of driving the conveyor 12 and installs it at a designated position of the next work W, and holds the conveyor stop drive signal while sensing the work W. In order to function to output the hold signal, the proximity sensor is used while the work W is blocking the light beam of the work detection sensor 15, that is, until the work W passes the position of the work detection sensor 15. 10 does not output a signal.
[0031]
When the next work W is supplied to the conveyor belt 12A and the leading end of the work W blocks the light beam of the work detection sensor 14, the work detection sensor 14 senses that the work W has been pushed in, and the conveyor drive unit To stop the driving of the conveyor 12 to stop the rotation of the conveyor belt 12A.
[0032]
The rotation of the application roll 5 causes the sensor operating member 10A attached to the application roll 5 to move. When the sensor operating member 10A senses the sensor operating member 10A, the sensor 10B of the proximity sensor 10 drives the conveyor to drive the conveyor. A conveyor drive signal is output to the section 16 to drive the conveyor 12 and the conveyor belt 12A starts rotating.
[0033]
As described above, the rotating printing plate 9 of the application roll 5 comes into contact with the surface of the embossed pattern 21 of the embossed pattern F on the surface of the work W by the rotation of the conveyor belt 12A, and the paint adhered to the printing plate 9 as described above. Is applied to the surface of the emboss pattern 21.
[0034]
By making the circumference of the application roll 5 the same as the dimension of the pitch P of the embossed pattern F, one embossed pattern F may be coated by one rotation of the application roll 5.
[0035]
As described above, according to the present embodiment, it is possible to easily and reliably synchronize the position of the relief plate 9 provided on the surface of the application roll 5 with the position of the embossed pattern F on the surface of the work W. As a result, it is possible to reliably apply the paint to the embossed pattern F. In particular, it is possible to apply a color different from the color applied to the entire surface of the work W including the embossed pattern F to each embossed pattern 21 of the embossed pattern F, so that a high-quality work (for example, metal) Siding material) W.
[0036]
In the above-described embodiment, the proximity sensor 10 is used as the application roll rotation detection sensor. However, the present invention is not limited to this. For example, an encoder may be used. Further, the transport conveyor was constituted by a single belt-shaped conveyor body, but is not limited to this, and is constituted by a plurality of conveyor bodies cut along the transport direction, and arranged in tandem in the transport direction. Each of the workpieces W may be configured to receive the workpiece. In this case, it is preferable to use a photoelectric tube sensor disposed above each transport conveyor as the workpiece detection sensor. When a plurality of transport conveyors 12 are used, it is preferable to provide a driving device individually for each.
[0037]
【The invention's effect】
As described above, according to the embossed pattern coating method of the present invention, the position of the relief plate provided on the surface of the application roll and the position of the embossed pattern on the surface of the work are easily and reliably synchronized. Thus, the paint can be surely applied to the embossed pattern. In particular, a color different from the color applied to the entire surface of the work including the embossed pattern can be applied to the embossed pattern, so that a high-quality work (for example, a metal siding material) can be obtained.
[0038]
Further, according to the embossing pattern coating method according to the present invention, the work is configured by projecting and forming an embossing pattern on the surface of a long plate material, and this embossing pattern is a set of a plurality of types of embossing patterns. Since a large number of sets of embossed patterns are repeatedly formed at the same pitch in the length direction of the plate material, and the relief plate is provided on the surface of the application roll in the same arrangement pattern as the embossed pattern, It is possible to apply a color different from the color applied to the entire surface of the work including the embossed pattern to each embossed pattern of the embossed pattern, thereby creating a high-quality work (for example, a metal siding material). be able to.
[Brief description of the drawings]
FIG. 1 is a schematic structural explanatory view of a coating apparatus for performing an embossed pattern coating method according to the present invention.
FIG. 2 is a perspective view of a work (material to be coated).
[Explanation of symbols]
A Coating equipment F Embossed pattern W Work (material to be coated)
DESCRIPTION OF SYMBOLS 1 Coating roll mechanism part 2 Conveyor mechanism part 5 Coating roll 6 Pressure roll 7 Doctor roll 8 Doctor roll 9 Letterpress 10 Proximity sensor (Coating roll rotation detection sensor)
10A Sensor operating member 11 Mount 12 Conveyor 12A Conveyor belt 13 Laser marker (position determining means)
14 Work detection sensor 15 Work detection sensor 20 Plate 21 Emboss pattern

Claims (2)

By driving the conveyor, the work supplied to the conveyor is inserted between the rotating application roll and the pressure roll, and the relief provided on the surface of the application roll is embossed on the surface of the work. A coating method of an embossed pattern in which the paint adhered to the relief plate is applied to the surface of the embossed pattern by contacting the surface of the embossed pattern,
An application roll rotation detection sensor that operates each time the application roll rotates, a position determination unit that determines the position of the work, and a work detection that detects supply of the work and outputs a conveyor stop drive signal to a conveyor driving unit. A sensor and a work sensing sensor that outputs a hold signal for holding the conveyor stop drive signal to the conveyor drive unit while sensing the work,
When the position of the work supplied to the transport conveyor in the driven state is determined by the position determining means, the work detection sensor detects the supply of the work and outputs the conveyor stop drive signal to the conveyor driving unit. To synchronize the position of the relief and the position of the embossed pattern by stopping the drive of the conveyor by outputting to the
Next, the application roll rotation detection sensor is operated by rotation of the application roll, and a conveyor drive signal is output to the conveyor drive unit to start driving the transport conveyor,
While the work detecting sensor is sensing the work, the conveyor stop drive signal is held and the drive of the transfer conveyor is continued, and the work is transferred to the application roll and the pressurizing unit. A coating method for an embossed pattern, wherein the coating is performed by inserting the coating between a roll. The work is formed by projecting the embossed pattern on the surface of a long plate material, and this embossed pattern is a set of a plurality of types of embossed patterns. It is formed repeatedly at the same pitch in the direction
The embossed pattern coating method according to claim 1, wherein the relief printing plate is provided on the surface of the application roll in the same arrangement pattern as the embossed pattern.

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