JPH09109374A - Packaging machine with ink jet recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent ink from being transferred to a sheet retaining roller and a drive roller by disposing an air supply tube near the rear stream side of a nozzle head with respect to the flowing direction of a packaging sheet, and forcibly driving ink printed on the sheet. SOLUTION: An air supply tube 21 is disposed near the rear stream side of a nozzle head 3 with respect to the flowing direction of a packaging sheet 13. Accordingly, when the drive roller 10 of a packaging machine is driven, the sheet 13 wound on raw fabric roll 11 is passed through a guide roller 9, and printed on a stationary roller by an ink jet recorder 4, and the printed ink is forcibly dried by the air exhausted from the tube 21. Thus, the transfer of the ink printed on the sheet 13 to the roller in contact with the sheet 13 after printing of a sheet retaining roller 1a and the roller 10 can be eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging machine using an inkjet recording device.

[0002]

2. Description of the Related Art Generally, in a packaging machine using an ink jet printer, ink printed on a packaging sheet is naturally dried.

[0003]

Since the ink printed on the packaging sheet is naturally dried and dried, there is a problem that the time until complete drying is long and the ink is transferred to the sheet pressing roller and the driving roller. An object of the present invention is to forcibly dry the ink printed on the packaging sheet in a short time so that the ink is not transferred to the sheet pressing roller and the driving roller.

[0004]

In order to achieve the above object, the present invention is provided on the downstream side of the nozzle head with respect to the sheet flow direction so that the ink printed on the packaging sheet can be forcibly dried. An air supply pipe that can supply air is arranged, and this air supply pipe has a unit structure of a nozzle head, a pressing roller, and an encoder.

When the drive roller of the packaging machine is driven by the drive source, the packaging sheet wound around the original fabric roll passes through the guide roller and is printed on the fixed roller by the ink jet recording apparatus, and the printed ink is supplied by air. The air discharged from the pipe forces the product to dry and carry it out. Since the packaging sheet is sandwiched by the fixed roller and the sheet pressing roller with a constant pressure, if the drive roller is stopped during printing, the original fabric roll rotates due to the inertial force of the original fabric roll, and the packaging sheet sags. The printed portion of the packaging sheet is in close contact with the fixed roller. Further, upon restarting, the packaging sheet does not stretch and printing is restarted from the position interrupted during printing.

[0006]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 are configuration diagrams of a packaging sheet and each roller of a packaging machine using an ink jet recording apparatus according to an embodiment of the present invention, a front view of a sheet pressing roller unit,
The side view of a sheet pressing roller unit is shown.

The original sheet of the packaging sheet 13 is in the form of a roll 11 and is held by the original sheet holding roller 20. The packaging sheet 13 is sandwiched between the guide roller 9 and the sheet pressing rollers 1a and 1b via the auxiliary rollers 12a and 12b, and the portion to be printed is brought into close contact with the guide roller 9 and carried out by the drive roller 10. Sheet pressing rollers 1a, 1b
Has a structure in which the packaging sheet 13 is pressed against the guide roller 9 by the force of the sheet pressing roller pressing spring 7.
The encoder roller 2 attached to the shaft of the encoder 14 that detects the speed of the packaging sheet 13 and outputs a signal to the inkjet recording apparatus main body 4 includes the packaging sheet 13 and the guide roller 9 between the two sheet pressing rollers 1a and 1b. Encoder roller pressing spring 16 is attached to the close contact area.
It is structured to be pressed by the force of. The printing nozzle head 3 connected to the inkjet recording apparatus main body 4 by the cable 5 includes two sheet pressing rollers 1a and 1a.
It is attached above the portion where the packaging sheet 13 between b and the guide roller 9 are in close contact.

The sheet pressing rollers 1a and 1b, the nozzle head 3 and the encoder roller 2 are attached to the unit base 6 via the pressing roller supporting parts 18, nozzle head supporting parts 17 and encoder roller supporting parts 15 and 19 of the respective supporting parts. Has been. Further, the air supply pipe 21 is attached to the unit base 6 via the air supply pipe support 22 so that the air supply pipe 21 is arranged on the downstream side of the nozzle head 3 with respect to the sheet flow direction. Is attached to. The encoder roller 2 is attached near the nozzle head 3. The unit base 6 is
The structure is such that it can be attached to the guide bar 8 fixed to the packaging machine.

The roll-shaped wrapping sheet 13 held by the original fabric holding roller 20 passes through the auxiliary rollers 12a and 12b and is sandwiched between the guide roller 9 and the sheet pressing rollers 1a and 1b, and the portion to be printed is the guide roller. It is brought into close contact with 9 and is carried out by the rotation of the drive roller 10. The inkjet recording device 4 stores the print content, and the encoder 1
When the pulse signal is received from the nozzle 4, the vertical one-line printing is applied to the arbitrary particles ejecting the ink particles from the nozzle head 3. This is repeated for the stored print contents.
Ink particles ejected from the nozzle head 3 of the inkjet recording device 4 are adhered to the packaging sheet 13 being conveyed, and the adhered ink is sprayed with air from an air supply source (not shown) through an air supply pipe 21.

As described above, there is an effect that the ink printed on the packaging sheet 13 is dried in a short time.

[0012]

According to the present invention, a wrapping sheet wound in a roll shape, an auxiliary roller for guiding the unwrapping wrapping sheet,
A guide roller and a drive roller, and a nozzle head of an inkjet recording device provided so as to face the outer periphery of the guide roller are provided so that the unwound packaging sheet is guided in the order of the auxiliary roller, the guide roller, and the drive roller. Then, there is provided a packaging machine including an inkjet recording device in which each roller is disposed, and an air supply pipe is disposed on the downstream side of the nozzle head.

According to this structure, the ink printed on the packaging sheet is not transferred to the rollers such as the sheet pressing roller and the driving roller that come into contact with the printed packaging sheet, and the packaging sheet and the rollers are not contaminated.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a packaging sheet and each roller of the present invention.

FIG. 2 is a front view of a sheet pressing roller unit according to the present invention.

FIG. 3 is a side view of the sheet pressing roller unit according to the present invention.

[Explanation of symbols]

1a, 1b ... Sheet pressing roller, 2 ... Encoder roller, 3 ... Nozzle head, 4 ... Ink jet recording device,
9 ... Guide roller, 10 ... Drive roller, 11 ... Original roll, 12 ... Packaging sheet, 21 ... Air supply pipe.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsushi Oyama 1-1-1, Higashitaga-cho, Hitachi-shi, Ibaraki Hitachi Ltd. Electric Appliances Division, Taga Headquarters (72) Inventor Hideyuki Omori Higashi-taga, Hitachi-shi, Ibaraki 1-1-1 Machi Incorporated company Hitachi Ltd. Electric Appliances Division Taga Headquarters

Claims (2)

[Claims] 1. A packaging machine for printing characters, graphics, etc. on a packaging sheet by an inkjet recording device, characterized in that an air supply pipe is arranged near the downstream side of a nozzle head with respect to the flow direction of the packaging sheet. A packaging machine equipped with an inkjet recording device. 2. The inkjet recording device according to claim 1, wherein a plurality of the sheet pressing roller for sandwiching the packaging sheet, the nozzle head of the inkjet recording device, the encoder, and the air supply pipe have a unit structure. Packaging machine.