DE1671552A1 - Dusting device for coloring latent records with colored powder - Google Patents

Description

Dipl.-Ing. Heinz Ciaessen
Patent attorney
7 Stuttgart - 1
RotobühXstr. 70

ISE-RGg.

G.M. Gardner 2

INTERNATIONAL STANDARD ELECTRIC CORPORATION, / 20 PARK AVENUE, NaW YORK 22, N.Y., USA

Dusting device for coloring latent records with parb powder

The priority of application no. 56619/66 of I9. December 1966 in the UK is claimed.

The invention relates to a dusting device train coloring latent records of electrostatic or electro-magnetic Nature with a corresponding Parbpulver * which beforehand on a corresponding storage layer of a tape or drum shape Labeling has been applied and converted into a permanent record after the printing process will.

The present invention provides a dusting device for the aforementioned purpose, which is characterized by a simple Structure and a good impact catfish. Si »1st characterized in that just below the recording medium An upwardly open container is arranged over its entire width, which is made of a permeable seabrane is divided into an upper container space and a lower container space that the color powder is located in the upper container space and that the lower container space is provided with an inlet port.

The invention is based on several exemplary embodiments explained in more detail below in conjunction with the drawings.

ZT / t / ORPP (II) vHy-epr

f. December 1967 - 2 -

000ΘΘ2 / 1756

"<**" ΊΒ71552

ISB-P-BS. 3795 - 2 -

Pig. 1 «lc * 1" «hectic scftnitter- ^ xlurs elro next ₈ -lich? * .Jefimruneafoiw <5-r ErfJn-Mr- In ir ε · 3ΐίβη-view.

Pie. 2 steUt em = B all variant Ä * r in Fig. 1 «set up Execution in section.

FiB. 3 "is the execution of the Pig. 1 In conjunction with

«Is the output

el -! Γ Suction device in ScheBatlscher Schnltt-

d an) division.

In WiK 1 let die Drucktrona.1 5 a according to the principle of "lchtschlaeend.n IM *, working""chin", which. ..B. »Uf.! ,, ktro-mgn.tischer or el.ktro-.tati.cher Ba» i. is working. • Sput "nt" half of this troubles ".! S Ut the B "deaf" .In- ZL orders. -e.ch. 1. wsntll.hn au ».In.». Above Bshalter 1 consists in the below the request .ine

C «* ^it " ^{elche the} ^ * ¹ * " ^l

r «nllnand.r separate houses ™. 12 and I ₃ ;

ΐ-bran. can either consist of a rigid or flexible Z ^. The under. Note "au" I ₃ -It is provided with a * ^ ₃ . -äh «nd the .ta» BehäXt.rra »- colored powder 4 is filled. By feeding .U-.

" _{On Oas} "", r piussigkeit USer the in F _permeable see hem-

rr :: nor

distribution of the colored powder as far as »uf, .UUi the« uf der Time 5 Finally, storage layer 14 over the whole for 1 * 11 in this. Mixture immersed.

",""" Rdnun "can be chosen like this. that a touch of the The arrangement M " _{cover the 8? arbp} ulvers" only

? rr «« iMt «·, by supplying the gaseous or

T ₈ : Γι- dltT ^ evaluation in dependence on control of the supply of .ines di «.r media to the exercise facility.

B. I was very happy. Color powder (10 - 50 u) can do it f..si. «n that this billows up strongly, so that grittles lengthen

1871552

ISE Reg. 579 ^ - 3 -

The container's vibrating tongues are located, soft in dns colored powder stick in and get the whirling up.

Another possibility of localized whirling up of the colored powder consists in an intermittent supply of gas or liquid medium into the lower container raura 13 e.g. by means of a piston pump. At a facility, soft is provided with a flexible, permeable membrane 2, this is through the pulsating supply of the medium in Vibration displaced, whereby the color powder particles are given the necessary excitement.

The required fluidization of the colored powder can also take place according to the arrangement according to FIG. 2, in which the flexible, permeable Membrane 2 is caused to vibrate by a vibrator 7. In this case, the inlet port 3 is used 1 shows a simple check valve 6. The vibrator 7 moves the membrane 2 between the two end positions 8 and 9 moved back and forth. This pumping action in conjunction with the check valve 6 causes the colored powder Ί in the upper container space 12 exposed to a pulsating air flow, which penetrates through the membrane 2 and whirls up the paint particles.

Instead of the vibrator 7, an eccentric drive can also be used or vibration generators that work electrostatically or electro-magnetically.

With the latter two methods, the Mombrana 2 can, as far as it consists of suitable material, directly into the vibration system be included. Otherwise it has to be coated with a suitable material in one or more places, The membrane 2 thus becomes a direct mechanical part of this electro-mechanical converter. These two types of vibrations generation are characterized by their simplicity and the low number of moving parts.

009882/1755

ISE Reg. 3793 _ 4 -

In the above-mentioned dusting devices, the pulsating mode of operation ensures that the paint powder is uniformly distributed within the container 1, so that there is a large guarantee that when the roller 5 rotates, the paint powder that is swirled up is immersed in each case Area of the storage layer lh is completely dusted with colored powder particles, so that this remains adhering to the previously electrostatically or electromagnetically influenced areas of the storage layer 14 in sufficient density.

To avoid an excessive accumulation of colored powder particles at the marked areas, the excess material be removed by electrostatic or electromagnetic means prior to the transfer of pressure. One more way there is still to do this by means of a normal suction device. Such an embodiment is shown in FIG. 3.

Even if the suction device shown here is generally present If combined with the arrangement according to FIG. 1, it is of course possible to use it in connection with the other aforementioned design options are given.

The suction device consists of a container that is open at the top 10, which with a certain gap 15 the container surrounds and extends to close to the surface of the drum 5. Both containers are fixed to one another in a manner not shown tied together. The container 10 is provided with an exhaust nozzle 11 which, when used, is connected to a nursing pump a filter device at & achlosseη. The inlet port of the container 1 has such a lung in this pail that it extends through the wall of the container 10, bit of which it is tight connected is.

- 5 009882/1756

ISE Reg. 3793 - 5 -

By creating a negative pressure within the suction device, the excess powder particles adhering to the storage layer 14 of the drum 5 are in each case in the
The area of the gap 13 is sucked off in the direction of the arrow, as are the particles thrown out of the container 1 by the excessive swirling of the powdered paint. You get through the mentioned, not shown Piltoreinrichtung., Where the powder is cleaned in a suitable way for reuse, ultimately in a collecting container.

7 claims

2 sheets Zelohng. (3 fig.)

009882/1756

Claims (1)

3795 - 6 - 1. BiaUit! I! Nsn3ci5lnrlcht \ in3 sura EinfRb? Ia latent Aufssioh- iv ^^ n electrostatic or electro-magnetic tube with a corresponding one Color powder »which without prior to a corresponding storage top layer of one Tape or treadle-shaped wrap-around panels have been applied are and naoh the Umdruokverfahren in a permanent record Will be transferred «characterized by daaa just below the listing (5), over its entire A container (1), open at the top, placed wide, let »which of a permeable membrane (2) into an upper container space (12) and a lower container room (13) is divided, see the upper one Beh & lterraua (12) the colored powder (*) is located and that under Behfilterraiai (13) old elnea Elnlasatutsen (3) vwtwn is « Beatifi ^ junsselnriohtung naefe Aneprueh 1 ₍ diduroh indicated that the lower container bracket (13) a vibrator (7) is arranged, which acts on the kacferane (2) and then the one as a return valve (6) is built. 3 · BestMubungaelnriohtune according to claim 2 »characterized by this, because the vibrator (7) is designed as a flute drive 1st. h, asattfrtaB ^ selnrlohtung naoh Anapruoh 2, thereby known 1 α h ne t, that the norator (7) inviting the "us entapreehsadMi material baatenden M-hrnne (2) in there on electro-ataUaeher or elect? o blessed Baal works BeatllaibuneiPolMrlohtung after the claims 1 and 2, because it is rewarded that the keeper (l) is from a "green container (10) forming a twin rate (15)""because" this container (10) old is an "Abeanestutaem U) rrehaa ie « νκΛ daM der BlnlAssteitsen (3)» sw · the RUakaehlegveBUl (6) whose hemp «de · BehUter · (10) is enough and old theeer H / aht fe-aaen · 009882 / 17B6 -T- 1571552 . 3795 - ⁷ " 6. Beatnubunßcelnriehtung tvoh claim 1, characterized in that g β k β η η «Al without that dl« ttetsbrano (2) consists of etoifea Mnt «r.lal, 7 · Pollination control based on requirements 2-4, thereby characterized in that the Mecbrane (2) axis is flexible Material consists ZT / P / dRPP (II) vijr-epr
December 7, 1967 009682/1758. E - No. 7607 -Reg. No. 3795 ¹ S : OM Gardner - Title: B ^ stKubungeinriohtung for coloring latent Records with colored powder List of terms used xeicrwn Urspmrt ^ siproche Όι / Έ. translation 1 2 5 6 10 12 13 14 15 container membrane inlet port printing powder printing drum return valve vebrator position position oontainer outlet port top section botton seotlon recording surface space Container membrane Inlet pipe Color powder Druoktronnel check valve Vibrator end position end position container Intake manifold. upper container volume lower tank rcum Speioheraohicht Space 009882/17