DE8428924U1 - Compact printing and application machine for flowable media on webs - Google Patents

Description

Compact printing and application machine proposed that a
Hollow roller is provided, in the interior of which near the
Mantels several independent magnetic bars
are provided, preferably symmetrical along
of the shell of the hollow roller are offset from each other,
that the magnetic bar application devices with elements

DIPUINQ. RC ₁ SROKA" ¹ ■ '··'♦ ·* '·«'&iacgr; I

DR. H, FEDER ^! DIPL-PHYS. DR. W.-D. FEDER

PATENT ATTORNEYS .« _&Agr; „ . _&Lgr;&Lgr; _. ;

File 84-20-81 [

23 September 1987 §

Johannes Zimmer, Ebentaler Str. 133^ 9020 Klaqenfurt

Compact printing and application machine

for flowable media on webs.

The innovation concerns a compact printing and order!

/ machine for flowable media on webs, in particular |

special for multi-coloured stencil printing* |

The known machines for carrying out several treatment processes on webs of material always have separate treatment units at the individual treatment stations and separate counter surfaces assigned to them.
However, the space required by these machines is very large. | It is also already known that both printing machines and
also for treatment machines magnetic bars for pressing
of elements of the treatment units. The
individual treatment stations are completely
separated from each other. If a web of goods is to be

&ngr; 15 treated, e.g. coated or dyed
and additionally sampled, it is usually
necessary to pass the web through two completely separate
to run machines.

According to the new regulations, the I mentioned at the beginning

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made of magnetizable material and that the web of material wraps around the hollow roller and is guided forwards to the application devices. Through this combination of several separate magnetic bars in a single hollow roller, the arrangement of application devices with elements made of magnetizable material and the wrapping around the web of material, a machine has been created that is very small and yet still fulfils all the tasks required of it. Finally, the web of material can be treated in a variety of ways, e.g. surface treatment, coloring and printing, the latter also in several colors, can be carried out on the same machine. The individual printing units can be easily exchanged and it is optionally possible to change the treatment sequence.

The innovation is now described in more detail using the drawing. The drawing shows a schematic representation of a compact printing and application machine in accordance with the innovation. The brackets, the machine frame, etc. have been omitted for better clarity.

A hollow roller 1 with a relatively large diameter is provided with several magnetic bars 2 inside. In the illustrated embodiment, there are four magnetic bars, each of which is offset from one another by 90°. It is of course also possible to provide a different number, e.g. three, inside the hollow roller 1, whereby these magnets are then at a different angle to one another. The magnetic bars 2 can be operated completely separately from one another and each of the magnetic bars 2 forms its own magnetic field. A magnetic bar is understood to be a device in which a row of electromagnets is arranged one behind the other in a holder, whereby one pole of each magnet is opposite the surface of the hollow roller 1.

Each of these magnetic bars is assigned a treatment station. In the example shown, two printing stations 3 and two different application stations 4, 5 are provided. In the example shown here, the heat web 6 first runs through stations 5 and 4 and then through the printing station 3. The printing stations 3 can be designed in the usual way, ie cylinders can be provided in the stencils, which are mounted in a holder via end rings. Inside these cylindrical stencils there will then be an ink feed and a roller doctor made of a magnetizable material, which are pressed against the stencil wall by the magnetic forces. In the treatment station 4, a trough for the medium 10 to be applied is provided on a height-adjustable table 7. The trough 8 is detachably connected to the table 7 via a quick-release fastener. The height of the table is adjusted in the direction of the double arrow 11. A roller 12 dips into the medium 10 of the trough 8 and transfers the medium to be applied to another roller 13, which then transfers the medium to the web 6. It is advantageous if the roller 12 has a profile on its surface, as the transferred quantity can then be dosed better. One of the two rollers 12 or 13

* consists of magnetizable material and is pressed against the web of material by the magnetic bar 2. The roller 12 can be designed as a hollow roller and can be pressed against the roller 13 as a result of the buoyancy in the medium 10. At the application station 5, a trough 14 is also provided here, which is filled with a medium 15. Here, the application to the web of material 6 takes place via three adjacent rollers 16, 17, 18. Here, too, the trough 14 can be provided on an adjustable table.

The individual treatment stations can be set up quickly and easily by switching on the corresponding magnetic bars 2 and inserting the corresponding application rollers or

4 · « · ca a ··

Printing stencils can be put into operation. It is also possible to exchange and replace the units at the individual treatment stations in a simple manner. It is therefore possible to set up another application station instead of a printing station ⁵ or, conversely, to provide another printing station instead of an application station.^Other applications can of course also be used.

action stations than those shown, as it is not difficult to attach other training forms to the tables or arrange them in the holders (.). The individual elements can be exchanged quickly and easily, as all elements are easily accessible from the outside. It is of course possible to process any type of flowable material with the new machine, including all types of foam. The new machine is also suitable for applying small quantities, whereby the surface profiles of the dipping rollers or dosing rollers precisely determine the quantities of the medium to be applied. 20

It is also possible to combine indirect application with direct application. For this purpose, the web of material wrapping around the hollow roller 1 can be moved away from the hollow roller 1, guided through an application device and then returned to the hollow roller 1.

Claims (4)

- 5. Schütz, claims: 1. Compact printing and application machine for flowable media on webs of material, in particular for multi-coloured stencil printing, characterized in that a hollow roller (1) is provided, in the interior of which near the casing several independent magnetic bars (2) are provided, which are preferably offset symmetrically along the centre of the hollow roller (1), that application devices (3, 4, 5) with elements made of magnetisable material are located opposite the Magnex bars (2) and that the web of material wraps around the hollow roller and is guided past the application devices, with the area of one of the application devices (3, 4, 5) being excluded if necessary. 2. Machine according to claim 1, characterized in that the application devices are optionally provided with stencils (3) for patterning or with application rollers (13, 18) for full-surface coating. 3. Machine according to claim 1 or 2, characterized in that at least one of the application devices (4) has an adjustable table (7) with a trough (8) from which the medium can be applied to the web of material via an application roller (13). 4. Machine according to one of the preceding claims, characterized in that an application device (4) is provided at the lowest point of the hollow roller (1). •&igr;· * * It * * &igr;·· *. I « IHI I III « I MM · I · ** t * It)I