SU414776A3 - DEVICE FOR DRAWING PAINT ON A BLUE12 - Google Patents

Description

This invention relates to devices for applying Iraqi on canvas, used in rotary and flat-bed printing machines of the printing industry.

A device for applying paint to a web on rotary and flat-bed presses is known, consisting of an FROM pipe for supplying ink and an elastic squeegee.

A disadvantage of the known device is the irregularity of the rigel blade across the entire width of the web.

The purpose of the invention is to obtain a uniform-dimensional paint layer or paint over the entire width of the web.

This is achieved by the fact that the elastic squeegee is hollow, fixed in a U-shaped holder under the ink supply pipe, and connected to an overpressure system.

The squeegee can be made with a convex front surface and fixed in the holder with a T-shaped head. The holder can be reinforced with steel corners to prevent vygauchivaniya.

FIG. 1 shows a machine with the proposed device, a general view; in fig. 2 - a device for applying a “scatter on a canvas, a cross-section; in fig. 3 and 4 - lolik squeegee with reinforced lower edges, cross section; in fig. 5 and 6 is an embodiment of the device according to the invention, in which the holder has supporting walls, transverse sections; in fig. 7 and 8 - squeegee, working on a flat shch.chone. On the table / press machine is mounted a device for applying paint on a canvas, containing a pipe 2 for supplying paint, installed in supports 5 and 4, a pattern 5 and a blade 6. 2 has openings 7 through which

The kraok is fed into the chamber 8, separated by a valve 9 with openings 10, through which the kraok locks into the reserve stock. The electrode 12 controls the ink level IB of the stock chamber. Under the tube 2 is located (the U-shaped holder 13 squeegee. The squeegee is hollow and connected to the sistely to create pressure. The cavity 14 is bounded by a flexible tube 15 fixed in the lower part with a rubber casing.

Air, steam, liquid or any gas (preferably air) is used in the cavity of the doctor blade. The pressure is created through the pipe 16. The pressure is regulated by the valve 17. A dynamometer 18 is installed on the pipe 16.

The angle of inclination of the bottom plane 19 of the squeegee to the painted web varies depending on the pressure set through the pipe 16 in the squeegee cavity. In accordance with this, the amount of Jurassic applied to

canvas. Raquel It can be ar.Miravan steel with heads 20, 21, and the holder can have supporting walls 22-24. Possible variants of the proposed device (Fig. 5-8). The squeegee in them is a single piece, has a T-shaped form and is mounted in the holder with a massive head 25. The holder may have a support wall 22, which, iB in turn, is reinforced. 26 moves freely (see Figs. 5 and 6). Rekel has a convex. 27. The convex surface 27 is reinforced on the support wall 24. To press paint through a flat template, the squeegee can be / is made acute (Figs. 7 and 8). Prev Invention. 1. A device for applying paint to a canvas consisting of a pipe for supplying paint and an elastic rope, characterized in that, in order to uniformly apply paint over the entire width of the canvas, the squeegee is hollow, connected to an overpressure system and fixed in a holder under pipe feeding yuraoku. 2. The device, p. 1, characterized in that the holder has an i-shape. 3. The device according to claim 1, characterized in that the squeegee is reinforced with steel corners. 4. The device for l. 1, characterized in that the holder has support walls to prevent the squeegee from releasing in the upper part. 5. The device on. 1, characterized in that the front surface of the squeegee is filled with a convex. 6. The device according to claim 1, characterized in that the squeegee has a T-shape and is fixed in the holder of the head.

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