JP2002001942A - Device for coating printing medium with protective agent in ink jet printing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for coating a printing medium with a protective agent continuously with printing without removing the printed printing medium from an ink jet printing device. SOLUTION: An ink jet printing device having an ink jet head arranged so as freely to slide in X axis direction and transports a printing medium in Y axis direction right-angled with X axis direction by one line, is provided with a device for coating the printing medium with a protective agent by winding the printed medium. Thus, printing and coating with the protective agent can be done continuously.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for applying a protective agent continuously with printing in an ink jet printing apparatus.

[0002]

2. Description of the Related Art Heretofore, a printing medium printed by an ink jet printing apparatus has been removed from the printing apparatus and set again in a protective agent applying apparatus, and then a protective agent has been manually applied to the surface of the printing medium.

[0003]

The above-mentioned prior art has a problem that the larger the print medium, the more troublesome the moving and setting work is, and the extra time is required.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems. An ink jet head is slidably mounted in the X-axis direction, and a print medium is moved in the Y-axis direction perpendicular to the X-axis direction. In an ink jet printing apparatus capable of sequentially moving by the number of lines, a device for applying a protective agent while winding up a print medium after printing is provided so that printing and application of the protective agent can be performed continuously. It is characterized by the following.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described in detail with reference to the illustrated embodiments. 1 is an inkjet printing apparatus. A moving unit 2 moves the printing unit 3 in the X-axis and Y-axis directions. 3 is (red, blue, yellow,
This is a printing unit having an ink jet head of (black) mounted thereon, with its ejection surface facing downward. The printing unit 3 is slidably mounted along the horizontal X-axis 4 via the moving unit 2. Reference numeral 5 denotes a print medium, and the print medium after printing is transported downward from the pinch rollers 6 and 6 on both sides. Reference numeral 7 denotes a protective agent application device disposed in front of the ink jet printing apparatus 1. Reference numeral 8 denotes a protective agent spray gun that slides horizontally along horizontal guides 9, 9. Reference numeral 10 denotes a drive shaft of the spray gun 8. 1
Reference numeral 1 denotes a drying air outlet that uniformly blows the drying air sent from the dryer 12 through the duct 13 over the entire width toward the printed printing medium 5 that vertically transfers the drying air. Reference numeral 14 denotes a positioning mechanism of the inkjet printing apparatus 1 and the protective agent applying apparatus 7.

Next, the operation will be described. When the printing unit 3 moves in the horizontal X-axis 4 direction while discharging ink according to a command (signal) of the control device, one line of printing is performed on the printing medium 5 and thereafter, the printing medium 5 is moved by Y for a predetermined pitch.
It is moved in the axial direction to print the next one line. The ink applied to the print medium 5 is applied to the guide 9 by the drive shaft 10 at the position where the print medium 5 is transported downward.
The protective agent is applied by a spray gun 8 uniformly in the entire width direction by sliding horizontally along 9. In this way, the protective agent is applied to the printed printing medium sequentially.

[0007]

According to the present invention, there is provided an ink-jet printing apparatus in which an ink-jet head is slidably mounted in the X-axis direction so that a printing medium can be sequentially moved by one line in the Y-axis direction perpendicular to the X-axis direction. Since a device for applying the protective agent while winding the print medium after printing is provided so that the printing and the application of the protective agent can be performed continuously, the setting time can be significantly reduced. Thus, the finishing time of the print medium can be shortened.

[Brief description of the drawings]

FIG. 1 is an external perspective view of one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ink-jet printing apparatus 2 Moving unit 3 Printing unit 4 Horizontal X-axis 5 Printing medium 6 Pinch roller 7 Protective agent application device 8 Spray gun 9 Guide 10 Spray gun drive shaft 11 Dry air outlet 12 Dryer 13 Duct 14 Printing device and protection Alignment mechanism of dispensing device

Claims (1)

[Claims] 1. An ink jet printing apparatus in which an ink jet head is slidably mounted in an X axis direction so that a printing medium can be sequentially moved by one line in a Y axis direction perpendicular to the X axis direction. An apparatus for applying a protective agent to a print medium of an ink jet printing apparatus, in which an apparatus for applying a protective agent while winding the print medium is provided, so that printing and application of the protective agent can be performed continuously.