CS242199B1 - Liquid substances' mechanical coating device on bands - Google Patents

Abstract

The invention relates to a mechanical device applying liquid substances to belts. The essence of the solution is that it consists of a trough provided with pairs of feed rollers, between which is placed a lower baffle disc with tray and pressure flap, wherein it opens into a closed container electromagnetic valve and equipped with an optoelectronic sensor with counter and preset. The device is suitable for application of different of liquid preparations for belts from absorbent material.

Description

BACKGROUND OF THE INVENTION The present invention relates to an apparatus for the mechanical application of fluids to strips of absorbent material.

The prior art method of applying liquid substances in the desired weights, for example to paper tapes, has been carried out manually.

The procedure was as follows: The worker grabbed the tape, applied the specified amount of the liquid in question, counting down! individual tapes and put them in the required number in prepared packages.

With such technology, labor productivity was low, workers were in direct contact with the fluid used, which, if it was very aggressive, also influenced their health condition and it was not uncommon to cause occupational health and disability. Technological procedure consisted of many simple operations, which by their monotony adversely affected the mental state of workers and reduced their performance.

These disadvantages are overcome by a device for mechanically applying liquid substances to the bands of absorbent material according to the invention, which is characterized in that the trough is provided on the inlet and outlet portions with twin feed rollers, between which a lower application roll with a tray is mounted. the pressure flap, results in a reservoir closed by an electromagnetic valve and equipped with an optoelectronic sensor with a counter and a preselection.

The liquid is applied to the belts mechanically and the operator does not come into direct contact with it during the working cycle, because the ticket counting is also performed by the electronics. Covering the fume extraction system eliminates secondary exposure.

The drawing shows a diagram of a device for mechanically applying liquids to belts.

The trough 4 is provided at the inlet and outlet sections with pairs of feed rollers 6, 3, 11, the synchronization of which is ensured by the transmission 8. The application disc 2 is dipped into the solution to be applied in the tray. A pressure flap 7 is placed on the application disc 2. The trough 4 opens into an inclined trough provided with a photoelectric sensor 13 connected to a preselection counter 1 and an electromagnetic flap 14 for emptying the cartridge 15. The entire device is housed in a housing 9 fitted with a fan .

The device operates as follows: The operator inserts the belts 5 into the area of the feed rollers B, which ensure further uniform movement. The displacement of the belt 5 is directed into the trough 4, from which the application disc 2 protrudes, so that its bottom part extends into the liquid tray, which is continuously replenished to the same level by a tube from the reservoir 10. The suction disc 2 fluid to the lower part of the belt 5, questioned by the pressure flap 7 in the same amount, because its speed and displacement of the belt 5 by rollers B, 13 are synchronized by a common transmission 8. The impregnated wetted belts 5 are moved by a pair of rollers 3, 11 The counter 1 preselected by the electromagnetic valve 14 allows emptying of the cartridge 15 after filling with a precisely specified number of bands. The whole device is placed under the cover 9, from which the fan 12 sucks out all the vapors arising from the liquid application process and transports them to a space outside the working environment.

Advantages of the device for the mechanical application of fluids are that the working environment is free of harmful vapors and during the working cycle it prevents direct contact of the operator with the working fluid, thus eliminating the negative impact on their health condition.

From a technical point of view - by varying the width of the application roller or by changing the ratio of its rotation to the rotation of the feed rollers, or by changing the working speed of the whole set in a wide range and with great accuracy. A significant advantage is also a multiple increase in labor productivity and thus labor savings. By doubling the lines, you can use both hands of the operator, which further increases its performance.

Claims (1)

PREDME1 The apparatus for mechanical application of liquids to the belts is provided with a hood with an exhaust fan, characterized in that the trough (4) is provided on the inlet and outlet portions with pairs of feed rollers (6, 3). ) with a tray, on which the pressure flap (7) rests, results in a reservoir (15) closed by an electromagnetic valve (14) and equipped with an optoelectronic sensor (13) with a counter (1) and a preselection.