DE1246480B - Ink roller with automatically metered ink supply - Google Patents

Description

GERMAN WIrWWt PATENT OFFICE

EDITORIAL

German class: 75 c - 25

Number: 1246 480

File number: W 42253 VI b / 75 c

1246480 Filing date: August 19, 1966

Opened on August 3, 1967

Ink delivery rollers with automatic ink feed are known, in which the ink is applied by hand or is automatically fed to the interior of the roller and od through holes, slots. Like. Of gets inside on the outer elastic cover of the roller. In addition, paint rollers are known, to which a small separate paint container is arranged. By rotating the roller, the Paint taken from the container by this. In addition, ink dispensing rollers have been developed to which the color is fed automatically, but from the outside. These paint dispensing rollers are equipped with a paint distributor arranged on the roller surface that picks up the paint and releases it to the surface of the ink release roller.

The known devices with ink supply from the interior of the roller to the surface of the elastic Roller cover have the disadvantage that, due to the non-homogeneous color composition, after a short time Use a blockage of the paint outlet opening in the roller interior can occur. Also can The continuous supply of paint due to the inhomogeneous coating material and its different consistencies are hindered by the elastic roll shell on its surface, so that by ongoing cleaning of the ink delivery roller an efficient work performance is not possible. Still has In the known devices, the paint supply to be regulated via a manual valve is disadvantageous and exposed the workflow to be disruptive. Due to various factors such as roller movement, color composition, Condition of the ceilings, walls or the like to be treated with paint manual actuation of the manual valve provided for this purpose. The one desired or required in each case Color inflow can also only be adjusted by eye and therefore imprecisely.

The ink dispensing rollers with a small ink reservoir arranged on them have the disadvantage that constant refilling is necessary to apply paint to large areas, apart from their relative great weight.

• In the case of the known ink delivery rollers with ink supply from the outside, it turns out to be disadvantageous that the paint distribution device arranged on the surface of the paint roller under constant pressure automatically color is supplied, by the differently rotating ink output roller - as a result manual actuation - is recorded in such a way that too little or too much color is added Available. An even paint application on the paint roller with automatically metered paint supply

Applicant:

Joachim Wurzer,

Bremen, Theodor-Storm-Str. 47;

Rolf Dohle, Bremen, Paderborner Str. 11;

Wolfgang Zaja, Bremen, Woltmershauser Str. 200

Named as inventor:
Joachim Wurzer,
Rolf Dohle,

Wolfgang Zaja, Bremen

Ceilings, walls or the like can therefore not be achieved or can only be achieved by regulating the manual valve, which disrupts the work flow. Furthermore, these ink delivery rollers have the disadvantage indicate that these are equipped with a color distributor that absorbs a relatively large amount of paint and feeds it to the roll shell via bores or slots. The holes or slots of these paint distributors, due to the paint reservoir in the paint distributor, due to the non-homogeneous Easily clog the paint composition and thus prevent an efficient way of working.

According to the invention it is therefore proposed that a switching contact rotating with the inking roller should be provided on the inking roller in cooperation with an interrupter contact to control a gate valve is intended for the promoted color.

This eliminates the identified deficiencies. With the device according to the invention that Paint, hereinafter referred to as paint, od from a storage container by means of a pump. through a flexible line to an inking distributor on the inking roller. From this will the paint is evenly applied from the outside onto the surface of the paint roller by rotating it. The ink metering is controlled by means of a switching contact assigned to the ink roller, e.g. B. electrical, achieved.

As a result of the roller movement, the switching contact actuates a preferably arranged on the motor part Valve that automatically enables metered ink supply to the ink roller according to its rotary movement, that means less when the inking roller rotates slowly, and less when it rotates faster

709 619/561

Claims (1)

accordingly more color. Of course, the device can also be used for pre-gluing. The inking roller with automatically metered ink supply according to the invention is shown in FIG an exemplary embodiment shown, namely shows Fig. 1 is a schematic representation of the device, A b b. 2 a longitudinal view of the inking roller,
A b b. 3 the switch contact with non-contact switch contactor and electrical switch contact, A b b. 4 the switch contact with cam switch contactor and electro-mechanical switch contact, A b b. 5 shows a cross section through the ink roller with the ink distributor arranged. The device according to A b b. 1 consists of a drive motor 1 that drives the paint pump via a drive shaft 5 6 drives and the paint located in the paint container S through the line 4 to the passage valve 2 feeds. Depending on the nature of the surface to be painted and the desired consistency of the paint, it can be applied Start of work a one-time setting can be made on the throttle valve 19, which is preferably is arranged between passage valve 2 and paint distributor 14. The switching contactor arranged on it now effects the rotary movement of the inking roller 13 17 via the switching contact 15, for. B. reed contact or limit switch, the automatic opening or closing of the passage valve 2 by a magnetic part 23 or the like. And thus automatically regulates the metered Ink supply from the passage valve 2 to the ink distributor 14 and from there to the ink roller 13. If no contact is made by the switch contactor 17 via the switch contact 15, the gate valve remains 2 in the rest position (closed), so that the pump 6 via the pressure line 4 to the gate valve 2 conveyed paint is fed back to the paint container 8 via the return line 3. If the switching contactor 17 remains with the switching contact 15 longer than the intended switching interval operated in permanent contact, the gate valve 2 z. B. closed by an overcurrent release 18, and the supply of paint to the paint distributor 14 is interrupted. Only when the inking roller rotates again 13 color is automatically supplied to this again. In A b b. 2, the inking roller 13 is shown as an example. This is rotatably mounted on the holding part 20, which is connected to the handle 12. On the other hand, the holding part 20 in A b b. 5 shown Arranged ink distributor 14, the ink channel 21 which is open to the surface of the ink roller 13 Feeds paint evenly dosed to the roller shell. The color divider 14 lies on the elastic cover train the inking roller 13 and can be adjustably arranged on the holding part 20. The front sides of the The paint distribution ducts 21 are closed, so that undesired paint leakage is avoided. On the for example in A b b. 3 and connected to the rotatable inking roller 13 switching contactor 17 one or more switching contacts such as permanent magnets or cams 22 are arranged at a certain distance. By rotating the inking roller 13, these are attached to the switching contact arranged at a corresponding distance on the holding part 20 15 and cause their magnetism to close and open the circuit in the switching contact 15. As a result, the magnetic part 23 of the gate valve 2 is via the current phase 16 and the circuit provided in the switch box 9 is activated, and the gate valve 2 transfers the supply of paint the flexible hose 11 and the paint distributor 14 to the inking roller 13 each at the moment of contact automatically free. In A b b. 4, the switching contactor 17 is shown as a cam disk, with one or several cams 22 are required in order to actuate an electromechanical switching contact 15. Through this the magnetic part 23 of the gate valve 2 can also be activated. The gate valve 2 thus gives the ink supply via the flexible hose 11 to the ink roller 13 in each case at the moment of contact automatically free. At the switch box 9, the motor 1 can be reversibly switched, for example in clockwise rotation for conveying the color to the inking roller 13 or in the counterclockwise direction to mix the color in the ink container 8 by means of the agitator 7. The agitator 7 should be connected to the pump 6, so that during the operation of the inking roller 13 prevents the color from segregating. The power supply the device can take place by means of the cable 10. Claim: Ink roller with automatically metered ink supply, characterized in that on of the inking roller (13) a switching contactor (17) rotating with it in cooperation with an interrupter contact (15) for controlling a gate valve (2) for the promoted Color is provided. Considered publications:
German sample no. 1901352,
881936; U.S. Patent No. 2,989,618. 1 sheet of drawings 709 619/561 7.67 © Bundesdruckerei Berlin