JPH0224214B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a screen printing device that intermittently sends out and prints a thin printing material such as a roll of film.

Conventionally, when printing using a screen printing frame such as a roll of film, it was necessary to feed the printing material intermittently and position it at a stop, but in the case of thin film, etc. It is very difficult to operate
In addition, the printing material applied to the rollers does not flow uniformly due to individual differences, and the conventional position control using a roll guider, etc. is not effective when a thin film flows due to intermittent motion. Even with control using a control board such as the above, it is impossible to perform positioning without being controlled if the substrate to be printed is thin.

Therefore, the purpose of this invention is to eliminate the above-mentioned defects, and an opening table A, a feeding device B, a printing device C, and a tensioning device D are arranged in series, and the opening table A is provided with a roll-shaped film. Thin printing materials such as 16
A feeding device B is provided with a roller 4 and a touch roller 5 for feeding out the printing material 16, and the feeding device B is provided with a roller 4 and a touch roller 5 for feeding the printing material 16, and the printing material 16 is intermittently printed on. In a screen printing device towed by rollers 13 and touch rollers 14,
The printing device C is formed by separating a printing machine body 15 and a suction table 6 for printing, and the suction table 6 for printing is installed between the above-mentioned sending device B and tension device D, and the suction table 6 has an arbitrary fixed value. The printing material 16 that has been conveyed in portions is suctioned and fixed by a vacuum device, and is suctioned and fixed to the entire printing machine body 15 and the printing suction table 6 by a left-right moving base 9 and a back-and-forth moving base 10 provided at the bottom of the printing machine body 15. This is a screen printing device for thin printing materials such as rolled film, which is moved to a printing position on a thin printing material such as a rolled film, and is operated by a left-right position detection sensor 11 and a front-rear position detection sensor 12 installed in a printing machine body 15. By adsorbing a given amount of the printing material onto the printing suction table 6, the thin material can be easily fixed in a fixed position, and when printing is completed, the vacuum is released and the printing material is smoothly absorbed into a given amount. This eliminates the conventional defects by moving and repeating printing.

An embodiment of this invention will be described based on the drawings.
As shown in the drawings, an opening table A, a feeding device B, a printing device C, and a tensioning device D are arranged in series, and the opening table A is provided with a shaft 1 that supports a printing material 16 such as a roll-shaped thin film, and a base. A roll diameter detection bar 2 whose end 2a is pivoted and whose tip 2b is brought into elastic contact with the roll of the printing material 16, and an edge control sensor 3 for controlling the edge of the printing material 16 below the roll, are provided to control the edge of the printing material 16. 16 is maintained in a proper state and transferred to a feeding device B. The feeding device B is provided with a feeding roll 4 and a touch roll 5 for feeding out the printing material 16, and the printing material 16 is sent to a printing device C. 16 intermittently and sent out of the machine by a tension roller 13 and a touch roller 14 provided in a tension device D. Thus, the above-mentioned printing apparatus C has a printing machine body 15 and a printing suction table 6 formed separately, and the printing suction table 6 is fixed between the above-mentioned feeding device B and tensioning device D with a support 6a. Furthermore, a low-speed instruction sensor 7 and a stop instruction sensor 8 are mounted on the support 6 for detecting marks at regular intervals that are pre-printed or punched on the printing material 16 and controlling the conveyance of the printing material 16.
A, the feeding speed of the printing material is slowed down or stopped, and the soft printing material 16 is smoothly transferred a certain amount onto the printing suction table 6 and stopped, and printing is performed at the same time as the printing material stops. The suction table 6 for printing becomes in a vacuum state, and the printing material 16 is suctioned and fixed onto the suction table 6 for printing.
On the other hand, the printing machine body 15 is installed on a left-right moving base 9, these are further installed on a back-and-forth moving base 10, and a left-right position detection sensor 11 and a front-back position detection sensor 12 for print alignment are further installed on the printing machine body 15.
is installed, and when the left-right moving base 9 moves and the left-right position detection sensor 11 detects the mark on the printing material 16 fixed to the printing suction table 6, the left-right moving base 9 stops moving.
Furthermore, when the back-and-forth moving base 10 moves and the back-and-forth position detection sensor 12 detects the above mark, the back-and-forth moving base 10 also stops moving, and the printing plate of the printing machine body 15 is stopped and fixed at the correct position with respect to the printing material. Do it like this. The printed material 16 is pulled and sent out backward by a pulling device D, and is sent out by a constantly rotating pulling roller 13 and a touch roller 14 that is intermittently in contact with the pulling roller 13. In addition, in the tensioning device D, the printing material 16 is sent out with the printed side facing up on the roller 13, so the touch roller 14 that comes into contact with this has a narrow width and is separated from the printed surface. It is a three-roller type so that it contacts both sides.

To print with the apparatus of this embodiment, a printing material 16 such as a roll-shaped film is fitted onto the shaft 1 of the opening stage A, and the printing material 16 is intermittently moved by the feeding roller 4 and touch roller 5 of the feeding device B. When the material is fed to the printing device C and conveyed by a certain amount to the printing suction table 6 which is separated from the printing machine body 15, the feeding stops, and at the same time, the vacuum suction operation of the printing suction table 6 is activated and the substrate 16 is fed to the printing device C.
is suctioned and fixed on the printing suction table 6, and
The printing machine body 15 is moved by the left and right moving base 9 and the front and back moving base 10, and the left and right position detection sensor 1 is moved.
1, the front-rear position detection sensor, and the marks made in advance on the printing material 16, the printing machine 1
5 is moved to the correct position of the printing material sucked to the printing suction table 6 and printing is performed. When the printing is completed, the feeding of the feeding device B and the stopping of the tensioning of the tensioning device D are also released, and the printing is completed. The printed material is pulled by a tensioning device D and sent out to a dryer, etc., and the printed material sent out by a feeding device B is sent in a fixed amount to the printing suction table 6 of the printing device C, as described above, and is subjected to printing operations. It is repetitive.

As described above, in this invention, the printing suction table that suctions the printing material is separated from the printing machine body and fixed at a fixed position, and the printing material does not need to be controlled by a guide or the like and can meander on the suction table. In addition, during printing, the printing material is attracted to the printing suction table, and the printing machine moves to the correct position, so there is no need to adjust the position of the thin printing material, and there is no need to damage the printing material. Since there is no risk of printing, accurate and beautiful printing can always be achieved.

[Brief explanation of drawings]

The drawing is a front view showing an embodiment of the present invention. Explanation of symbols, A... Opening, B... Feeding device, C...
Printing device, D... tension device, 1... shaft, 2...
Roll diameter detection bar, 3... Edge control sensor, 4... Delivery roller, 2a... Base end, 5, 1
4...Tatsuchi roll, 2b...Tip, 6...Suction table for printing, 7...Low speed instruction sensor, 8...Stop instruction sensor, 6a...Support, 9...Left and right moving base,
DESCRIPTION OF SYMBOLS 10... Fore-and-aft movement base, 11... Left-right position detection sensor, 12... Fore-and-aft position detection sensor, 13... Tension roller, 15... Printing machine body, 16... Printing material.

Claims (1)

[Claims] 1. An opening platform A, a feeding device B, a printing device C, and a tensioning device D are installed in series. This screen printing device is equipped with rollers 4 and touch rollers 5 for sending printed matter 16, and feeds the printed material 16 into a printing device C, intermittently prints on a printed material 16, and pulls it by a tensioning roller 13 and touching roller 14 provided in a tensioning device D. In the printing apparatus C, the printing machine body 15 and the printing suction table 6 are formed separately, and the printing suction table 6 is connected to the above-mentioned feeding device B.
and the tensioning device D, and the printing material 16 is intermittently conveyed to the suction table 6 by an arbitrary fixed amount.
is fixed by vacuum suction, and the printing machine 1
The printing machine body 15 is moved by the horizontal movement base 9 and the front and rear movement base 10 provided at the bottom of the suction table 6.
The printer moves to the printing position of the printing material 16 that is suction-fixed to the printing machine, and these position movement settings are operated by the left-right position detection sensor 11 and the front-rear position detection sensor 12 installed in the printing machine body 15. A screen printing device for printing thin substrates such as rolled film.