DE1652434B2 - DEVICE FOR DOSING FLOCK MATERIAL - Google Patents

Description

The invention relates to a device for pattern 1 898 365 and German patent specification sizing of to be applied in the electrostatic field- 908 131). The vibrating channel is in these cases as formed the flock material by means of an elongated body with sieve openings 50, through which provided vibrating channel. sieve-like bottom the flock material due to the

Known flocking devices, which fall through the vibratory movements, so that on ro-flock material in the direction of gravity, d. H. From above animal brushes can be dispensed with. Nevertheless down, on the workpieces to be machined, such metering devices never work apply, have to add the 55 evenly, because a vibrating trough usually has the Flakes in the electrostatic field, for example, bulk material located in it more or less start rotating brushes, which convey the flakes through a in a longitudinal direction, so that with the dei Brush the sieve. The disadvantage here is that no precise time is undesirable at one end of the vibrating trough Dosage is possible so that with excess of accumulations of flock material result and the flock must be worked. A heavy 60 accordingly for even flocking A further disadvantage is that the brushes if working with an excess of flock material Flock material pushed over the sieve has to be cut, or because it is absolutely neutral agglomerates and ever larger lumps Adjustment of the vibrating channel, i.e. when the same is in that must be removed as waste. The ideal case is actually not in a longitudinal direction Lumps remain constantly in the same, at the same time different, undulating zones Axis of rotation of the brush vertical plane, so that strong vibrations adjust, which also too. un the flock release at the point of the lump formation desired accumulations of material in some areas dung decreased. The lump formation is based thereon lead, so that for an even Beflok

3 4

kung again with an excess of Hockmate- von Hocken in an extraordinarily dense vor

must be worked rial. As a result, it does not depend on the amount actually delivered

it is now possible that the known vibrating troughs immediately follow control processes

findhche flock material down to practically the last with the help of a crouch to be handed over to the SoU

Rest uniformly in an electrostatic field to be monitored 5 control the output of the squat

S ^e ^. ⁿ ·. ,,, "__, to keep the amount constant at all times. Even just another

The object of the invention is to make devices almost comparable in their sensitivity

to improve the above-mentioned type, control is in the previously common dosing

that the flock material cannot form lumps, quite apart from the fact that the

menballt, but with within wide limits on io control of the known devices

easily adjustable amount and in any given squat amount because of the pulsating odei

desired flat-like distribution given usually non-uniform passage through dai

can be and that the device is only possible with great inaccuracy in front of the sieve.

Transition to another type of crouching completely

let go empty and then without cleaning with new i _5, although known, as drive elements adjustable vibrations

Squat can be loaded. _{gates (U.S. Patent 2,187,717} ).

A fixture is used to solve this problem.

Proposed device of the type mentioned that create bulk material evenly dosed by a

the vibrating channel erne self-contained path to deliver sieve bottom.

det, with the bottom of the vibrating trough partially as 20 To the device according to the invention if necessary

The sieve is formed in a wide variety of squat sizes and types.

It has been shown that such a device can fit, the sieve trays are after a

the other features of the invention already contained in the supplied hocking material are interchangeable

A smaller lump attached under the influence of the vibrating trough.

Oscillating movements are completely dissolved and that the sieve trays, which normally consist of relatively thin flock and which, when the device is operated, behave like a sheet metal under the influence of a liquid, remain loosened. Since the vibratory drives do not emit their own vibrations λ on the metering device, it is advisable to provide the sieve trays with an extraordinarily even distribution and or more longitudinally extending before leaving the device in absolutely constant ribs, preferably arched.
Stream, without having to work on the box-shaped endless vibrating interior, because the flock material can be brought through the attached metering sieves in an isolated, continuous, uniform stream in order in this way for the flocks to migrate in the device. to charge electrostatic field by induction,

If goods are to be flocked, which is a certain 35 or it can be below the sieve em grid for the purpose

Expansion has, for example, attached web-like charging of the flakes by ionization

Foil or the like or a bevy of next to each other.

threads guided by the flocking device, an additional advantage is that it is advisable to train the device in such a way that the principle of the rotary system is always the lowest that the vibrating trough is straight, with a parallel 40 layer of flakes that are on top the sieve is located, vibrations directed to their longitudinal directions are continuously removed and introduced into the electrostatic generating drives connected sections with field. A screening process as it occurs with sieve bottoms and curved sections with, for example, rotating brushes, is made up of a closed bottom, which is also avoided in a helical shape. As is well known, when dispensing the directed vibratory movements generating drives 45 flakes are linked by rotating brushes to a sorting process. In this way, one can take the place of the one that affects itself in such a way that the un-metering device can give itself any desired width. On avoidable longer flakes and the possibly due to the self-contained path on which the flakes formed move the flakes in the dosing device after a certain working time, accumulate in the flock box and a change never needs excess flock material, as caused by the work process which undas arise in the flock image with the previously common metering device inequalities,
For flocking individual objects, the overflow was removed from the device and returned to the device again, for example by hand or with a transport. Every flock particle. If the device moves through the electrostatic field rather than being guided by the dosing device, it is advisable to keep the vibrating channel in the direction of the closed path until it falls through, according to another embodiment of the invention, an opening of the sieve bottom and thus serves as a round vibrating sieve train and get into the electrostatic field. by means of one in the center of the vibrating sieve in the sieve surface

In an expedient development of the invention, the attached rod is helically directed

it is provided that the drives are to be operated with drives generating electromagnetic Vi- 60 vibratory movements.

are brators whose operating voltage and are bound. The result is an extraordinary one

If necessary, the operating frequency can be regulated. By changing an even veil of flock under the screen

tion of the voltage supplied to the vibrators and the excellent flocking of the

if necessary, frequency can practically delay the subject.

The device according to the invention has, independently

amount can be adjusted. The rule ranges from their special design, the wide-

possibility of the delivery of very few flakes, ren advantage that they in their mode of action of the

which only form a thin veil, until the filling level of the vibrating channel with flock is independent.

5 6

It is therefore possible to be arranged with a completely filled or illustrated further vibrator. the

with an almost empty vibrating trough a uniform flock - belonging to a curved trough part 2 or 4 -

to achieve levy. This simplifies the process for the springs with the vibrators acting on them

Refill the vibrating channel, because none are continuous, each radial to the channel part in question

Lent working conveyor device for refill 5 (in the illustrated embodiments

of the flock material is required. rotated about 90 ° to each other) so that the

The invention is described below with reference to in channel parts when the vibrators are operated on a

the embodiments shown in the drawing swing helical path,

explained in more detail, namely shows in the in F i g. 1 and 2 a reproduced arrangement

F i g. 1 shows a plan view of a first embodiment that moves that which has been placed in the channel

shape of the metering device according to the invention, flock material in the direction of the arrows. When the arrival

2a, the device according to FIG. 1 is selected in the Seitenan- order according to FIG. 2b, the

looks in the opposite direction with the flock transport arranged under the vibrating chute

drifted, the vibrating trough. So that the handover to the

2b shows a side view of the device with connection points between the individual channel parts

H as in Fig. 2 a takes place without loss above the vibrating channel, engages according to FIG. 1 each of the in

intended drive, transport direction with rear channel part

Fig. 3a shows a section through the device from a tongue Γ, 2 ', 3' and 4 'over the in transport

F i g. 2a according to line I-I, direction of the front part of the gutter.

3b shows a section through the device from ?? Pie in Figs. 1, 2a and 2b shown before

Fig. 2b according to line H-II, direction has a considerable working width, which at

4 shows a plan view of the left part of the corresponding extension of the straight channel device from FIG. 1 and ^te ü ^e * ^and 3 can be enlarged. It is there-

F i g. 5 an oscillating machine designed as a cylinder mold is possible to flock a web W,

gutter in partially sectioned side view. As can be seen from FIGS. 2 a, 2 b and 3 results are

In Fig. 1, a vibrating trough is shown in plan view - the inclined springs are parked with their the trough, which have a self-contained transport-facing ends on support parts 7, 7 α larger forms a path for the flock material to be distributed. Earth as it forms the gutter attached. This is he-she Vibrating channel consists of two straight lines, in order to achieve that the entire, Fenden Sections 1 and 3, the vibration energy given off by the vibrators with little decrease stood parallel to each other, as well as transfers to the gutter.

two curved transition pieces 2 and 4, which the Aus F i g. 3 a and 3 b also shows that the

Complete the channel to form a U-shaped arrangement. The sieve bottom 8 of the straight channel parts 1 and 3 in

rectilinear gutter parts 1 and 3 are, we cross-section a rib running in the longitudinal direction

at least partially as a sieve, for example with a round 35. This measure prevents natural vibration

or with a slot-shaped perforation. mostly made of thin, perforated sheet metal

AHe parts of the vibrating channel are on the sloping floor. The sieve holes can either be suspended from the springs. In Fig. 1, only the springs 3 α supporting the channel part 3, which is round or slit-shaped in cross-section, are designated. That be. Depending on the preparation to be supplied with flock springs are α 3 at their upper ends to brackets, can chen 40 of the bottom in the groove portions 1 which seitUch projecting from the trough, fixed. The and 3 only partially be designed as a sieve. Since the arranged on the outside of the groove part 3 to be flocked goods when passing under the consoles are provided with 5a on the inner side of the same device of Fig. 1 in the arrow direction at first chen groove portion provided consoles with 5 b Working under the trench portion 3, and then drawn under the gutter. 45 part 1 moved through it, it is possible to use the sieve bottom

In the area of the holes provided on the outside of the channel in part 3 with fewer, farther apart, partially 3, holes are to be provided as the bottom in channel part 1, as can be seen from FIG. This achieves a pre-flocking and a drive device below the vibrating channel pre-post-flocking of the goods W , a work is seen, electromagnetic vibrators 3 b instructions, which in many cases are arranged to an improved, the channel part 3 in short, both since - Uniformity of the flock stock on the finished borrowed as well as up and down running Schwin workpiece leads.

The device according to FIGS

End gutter Exercise well, relocate. in a simple manner for a wide variety of uses

The same arrangement as adapted on the gutter purposes. This is how it is, for example Part 3 is provided, there is also, 180 ° possible, a longitudinally rotated one in the vibrating trough 1 to 4, Provide a central partition wall running in the 1st direction on the gutter part

According to FIG. 2 b is also possible, the drive unit and the two parallel running next to each other

directions above the vibrating channel. Channels with different colored or different types of flock

2a, 2b and 4 also show the arrangement 60 to be charged. If, for example, the sieve opening of the vibration generating devices is in the aaf formed in this way a channel at the curved transition pieces 2 and 4. The channel parts are offset from the other and are each equipped with three inclined springs la (in Fig. 2 a not visible), 26 materials strip-like patterns on bahnfönniger and 2 c as well as Aa ₁ Ab and another, mirror image 65 goods are generated. The pattern strips go to the spring Aa arranged, not shown feet because of the scattering effect exerted in the electrostatic field on which corresponding vibrators flock particles flowing into-2 d to 2 / rad Ad, Ae and a corresponding one, not one another .

by an approximately parallel to the direction of movement of the springs

s? ¹ ItA Äcsrsü rs & a -

The amount of flock released by the vibrating channel ShmXe ™ SSL ⁸ SSf ¹ J ^ tVI 5

can be extraordinarily precise through regulation dir »Also bd Er aS ^ S? , I ·? -

Tension of electromagnetic vibrators or na «> SiÄ ^^^ f ^ * ⁰ ^ T ⁸ ^

if necessary, by regulating the frequency of the 53 * 25SJä ^ ⁸ ^ ⁸ ^ ^ab ^ ^level

guided current can be influenced. The An Stplfc Her ί «η» λ * »t. ^. ■,

Release of the flock when set to a low tert Ä ^^ t ^U8 ? ^ ^Be ^ ^e f- ⁸ ^ ¹¹ "

Quantity as evenly as when setting _ao fX GewüS ⁸ Γη? Η ί ^ ⁸ ^^ ^{6 kOOnea} '

as large a throughput as possible. zeuLf Γ ^ rnri 5 ^m f ^h amsche vibration

The supply of new flock material takes place via the ^rotating unbalances, which are used

The dargesteUte in Figure 5, modified execution SktÄnfsTSteTnde ν ^ * ¹ ^ V approximately of the invention is for Beflockungseinrich- passed hocing ^ Sh ^ ^Vo _f ^{m? htun} 8- ^dl f ^from s ^e "tungen with which individual works with value Lns ^ Äl ^ l *" * ^ i ^^^ are provided with a flock coating. The dosing 30 finished W ^ ksWek S Ä ^ f ^accordingly . ^The f ^ ^am device according to Fig.5 arises from a round MSSge ^ ach ^ tgeln ¹ ^ ⁰⁰ "" ** ^ascertaining

1 sheet of drawings

109529/181

Claims (6)

on that the brushes brushing over the sieve always claims: compress part of the captured flakes and the resulting lumps constantly continue to grow L Device for dosing in the electrosta- solidify. In addition, the flakes are flock material to be applied with brushes, which is a betels result in vibration damage to the surface preparation provided with sieve openings channel, characterized in that can have. the vibrating channel (1 to 4, 13) is an inherent part of these known metering devices forms a closed path, the bottom (8) of the rotating brushes from being angled to one another partially designed as a sieve io set rows of bristles must exist between the 2. Apparatus according to claim 1, characterized in that there are spaces in which the from indicates that the vibrating trough (1 to 4) from the following row of bristles advanced flock lean lines, with parallel to their longitudinal directions material, the brushed flakes occur in non-directed Vibration-generating drives in a steady stream, but more or less (3 b) connected sections (1, 3) with Sisbbo 15 pulsating out of the sieve. As a result, the (8) and curved sections (2, 4) with uniformity of the goods to be flocked are enclosed, which is moreover only possible in the drives (2 d to /; 4 d to f) connected to change certain limits because they are too slow. 20 times the brushes run, the time intervals between 3. Device according to claims 1 and 2, see the intermittently brushed flock characterized in that the drives are too large in amounts and when running too fast electromagnetic vibrator brushes the flakes only gated over the sieve (3 b ; Id to /; 4 d to /; 11 d to h) can be sniffed without passing through it. whose operating voltage and / or operating frequency is 25 The extent of the area within which the frequency can be regulated. known devices the flakes in axial 4. Device according to one of claims 1 direction of the brushes can be delivered to 3, characterized in that the Siebbö- choose any size, but with consideration the (8) exchangeable on the vibrating channel (1 except for the relatively small diameter of the ro-4) are attached. 30 animal brush and the resulting, 5. Device according to claims 2 and 4, relatively short in the circumferential direction below characterized in that the sieve bottom (8) lying sieve part a widening of the zone, in a or several in the longitudinal direction, within which the flakes are released, only preferably have arched ribs. by arranging several such metering devices 6. Apparatus according to claim 1, thereby one after the other possible. indicates that the vibrating chute is a round disadvantage, furthermore, that even when it is empty Vibrating screen (13) and by means of a metering device still a relatively large amount of flakes between the bristles of the fixed rod (9) remains hanging relatively centrally on the vibrating screen (13) in the screen surface with helical brushes. Therefore, when 40 type or color of flocking material (11 e to h) is connected to another drive generating oscillatory movements. should be removed, the brushes must be removed and getting cleaned. It has also been proposed that the dosing device as a vibrating channel with adjustable Vi 45 brationsantrieb, which contains sieve openings for the flakes to pass through (German Utility model 1 683 932, German utility