DE1636321A1 - Liquid supply device - Google Patents

Description

Applicant: Harri3-Intertype Corporation

Delaware, 55 Public Square, Cleveland, Ohio, USA

Plus sigk eit feeding device

The invention relates to a liquid supply device, in particular a paring or dampening unit for rotary printing machines »

The invention provides a liquid supply device, such as a dampening or dampening unit for a printing machine, which has a transfer roller for transferring liquid from a first roller, which can carry liquid, to a second or inking roller in contact therewith, and in which the transfer roller has an outer circumferential surface eccentric to its axis of rotation, so that the circumferential surface of the transfer roller moves towards and away from the first roller during each revolution of the latter in order to receive liquid carried by the roller. The liquid coating feed device according to the invention has a simple structure, is reliable in operation and, despite the eccentricity of the transfer roller, has no or almost no vibrations.

The invention also provides a liquid feed device of the type mentioned at the outset, in which the parts of the transfer roller, for example the metal parts, have a relatively large size. The eccentricity of the roller due to an outer section is relatively low - r IUi ρ im _t vorzugowei oe oirie sleeve, is achieved.

Iruroh 'i.e invention is also a Flüuaigkoltuzuführein-

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Direction of the type mentioned above, in which the Outer portion of the transfer roller a sleeve of different radial thickness made of a deformable or elastic material like * rubber is.

The invention also provides a liquid supply device of the type mentioned at the outset, in which the transfer roller is biased into contact with the second or inking roller i $, utri a continuous and uniform or substantial Even contact pressure distribution between the transfer roller and the second or the ink roller during the operation of the liquid saf watch facility to ensure.

The invention also provides a liquid supply device indicated, in which a first roller liquid of a second roller, which receives the liquid from the first roller, and a third roller receiving liquid from the second roller, and with the second roller on its opposite one The ends are so adjustable by means of adjustable brackets that their contact pressure on the third roller ate easily and quickly as well its lateral position to the first roller can be adjusted quickly, without hardly any pressure on the third roller or even at all to change.

The invention also provides a liquid feed device of the type described in the preceding paragraph, in which the brackets have a pre-tensioning device for pre-tensioning the two ton roller in contact with the shell of the third roller and have a Drehgeltmkhulter which about a to the axis of rotation of the second roller vertical axis rotatable so that the second roller cloth gitüchiuäUig to the third roller in the axial direction of the rollers essentially free from a deadlock between the second Can create roller and its holder.

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The invention also provides a transmission mechanism indicated in which the "inner surface of the transfer roller to and away from a supply roller during the plant to the

The ink-receiving roller is moved, and the mechanism is less sensitive to changes in the dimensions of the transfer roller than well-known transmission organisms and a more precise color control can be reached.

The invention will be explained in more detail with reference to the drawing. Show it:

1 shows a partial view of an inking unit according to the invention!

Fig. 2 is a partial section along approximately a line 2-2 of Fig. 1;

3 is a partial section along approximately a line 3-3 from ed. 2;

4 and 5 are schematic views of the inking unit according to FIG Invention, certain parts of which assume different relative positions!

6 shows a partial view of another inking unit according to FIG Invention; and

7 shows a partial section on a somewhat smaller scale approximately along line 7-7 of Figure 6.

Although the liquid supply device according to the invention can be used in a wide variety of devices, in which a liquid film is to be supplied, it is particularly suitable as an inking or dampening unit for a printing press, which is why the embodiments described below relate to an inking unit for a rotary printing machine.

In Figs. 1 and 2, an inking unit 10 is shown. The inking unit 10 can be between two separate side frames 12 of a .Druckmaschine arranged and carried by them »The inking unit 10

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has a paint supply 14 in the preferred embodiment a supply roller 16, which can carry a color film 17 on its outer surface 18, a transfer roller 20, the Parbe of, the supply roller 16 receives, and a transport or Delivery roller 22 for receiving the ink from the transfer roller 20. The ink film on the delivery roller 22 can be on an ink drum or an ink cylinder of the printing machine over several intermediate transport rollers be transmitted in a known manner.

The paint supply 14 can have any convenient conventional construction, and since it is not part of the invention it is only intended be described as far as is necessary to understand the operation of the

Inking unit 10 is necessary. The paint supply 14 is suitable from the side frame 12 mounted and has a supply housing or

a holder 24 with a bottom 25 and extending upward Sides 26 at its opposite ends which support the opposite ends of the supply roll 16. Pages 26, the Bottom 25 and the supply roller 16 form a trough for storing an ink supply 28, which the outer surface 18 of the Supply roller 16 touches.

The supply roller 16 can be rotated in the direction of the arrow 29 while it is in contact with the ink supply 28. When the supply roller 16 is rotated in the direction of arrow 29, nirant their color-bearing Jacket surface 18 paint 28 to form the paint film 17 thereon. A metering strip 50 extends over the bottom 25 of the paint supply 14 and is adjustable towards and away from the lateral surface 18 of the supply roller 16 in order to increase the thickness of the arm 17 the outer surface 18 of the supply roller 16 to adjust.

The transfer roller 20 receives ink from the jacket surface 18 the supply roller 16 and in turn transfers the color to the delivery roller 22. The delivery roller 22 is here as a cylindrical metal

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roller shown, which is mounted by suitable conventional bearings 34 on a stationary axis '5'c parallel to the axis of rotation of the supply ^ roller 16. The axle 32 is attached to and supported by the side frame 12 of the printing machine at its opposite ends. The delivery roller 22 can in both directions by a

suitable conventional drive are rotated, for example by the main drive of the printing machine or by frictional engagement with a (not shown) roller to which it delivers the ink. In the preferred embodiment, the delivery roller Ί2 contacts the transfer roller 20 in order to rotate the latter. The delivery «* and the transfer roller are normally rotated at the jacket speed of the printing cylinder of the printing machine, while the jacket speed of the supply roller 16 is significantly lower. The speed of the supply roller 16 is preferably adjustable in order to supply the necessary amount of liquid and its drive can work intermittently, although it is preferably continuously in operation.

The transfer roller 20 is supported on an axle 36 by bearings> b aruhüur about an axis 40 of the bearing, the axis 40 in: g wit parallel to -i> rehaciise the supply roller 16 and the Ab; - ii.ewalze ??. . runs.

The transfer roller 20 has an inner portion 42 which is arranged concentrically to its axis of rotation 40, and one

Outer section 44 with a cylindrical jacket surface 46 which is arranged eccentrically to its axis of rotation 40. The inner section 42 is shown here as a cylindrical metal roller, which is attached to the outer race of the bearing 38, while the outer section 44 is shown here as an eccentric sleeve, the inner jacket of which corresponds to the inner cylindrical one Roller glued or otherwise connected . and to int. The outer jacket surface 46 of the HUIo β 44 tiiit ei now iczviaföriuu-.eri ^ uernchnitt and its longitudinal ami ttelaohuo 45

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is laterally ge _o en the rotary axis 40 of the inner roller 42 offset so that the eccentricity eggs outer surface 46 continuously between the Sxzentrizitätspumrfcen A and B with g'roßem BEW. small radius, which are separated by 180 from each other, changes continuously. The distance between the axis of rotation 40 of the transfer roller 20 and the central axis 45 of the sleeve 44 is shown in an exaggerated manner in Pig. 4. The outer jacket surface 46 of the sleeve is therefore at a different distance from the axis of rotation 40 of the transfer roller 20. The sleeve 44 is preferably made of a deformable or elastic material such as rubber.

The transfer roller 20 is in the preferred embodiment in contact with the delivery roller 22 by a biasing device 48 biased so that a steady, uniform or substantially uniform contact pressure on the transfer roller 22 is achieved, as will be described in more detail. The transfer roller 20 is preferably arranged relative to the supply roller 16 in such a way that that a variable gap between the outer "shell surface of the transfer roller 20 and that of the supply roller "16 is available.

The outer peripheral surface 46 of the transfer roller 20 acts where ^ uii their eccentricity relative to the axis of rotation 40 as a control element, around the roller 20 towards and away from the outer circumferential surface 18 to move the supply roller 16, and thereby the distance or the S alt between a minimum and a Kjwcimum during each Rotation of the transfer roller 20 to vary, which is exaggerated is shown large in Fig. 4 and 5. The hollow part of the Transfer roller 20 contacts the preferred embodiment Voi'üorguriiitjwalze. Since the man ο eleven ItI before the roller 20 is elastic, i.e. made of rubber, the rollers are formed by the plant ätii ^ t. DioiieH applying the Out'i'tru ^ un ^ uwalzu 20 of rubber

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makes the inking unit sensitive to the exact distance between the supply roller and the transfer roller. To this Way can also be a thinner PiIm on the supply roller and thereby a more precise control of the amount of paint dispensed can be achieved. The transfer roller 20 remains because of the biasing means 48 in more evenly or substantially more evenly .Attachment to the delivery roller 22 during its movement towards and away of the outer jacket surface 1 # of the supply roller 16.

This continuous application of the transfer roller 20 to the ink film 17 on the supply roller 16 between a maximum and a minimum and the even or substantially even contact pressure between the transfer roller 20 and the ink output roller 22 enable ink to be transported such that that transferred to the output roller 22 Color film has essentially constant thickness. Further, because dea structure of the transfer roller 20 and the roller assembly the danger of a leg or Verne. Spraying ε of the color »even with very serially working printing machines, completely or almost completely eliminated ·

The advantage of the transfer roller described above is there that the risk of vibration in an inking unit with an eccentric Structure is kept small. Because the heavier parts of the roller are arranged concentrically to the axis of rotation and the sleeve consists of a light material with a low density, so that the eccentric portion of the sleeve has a very low mass, hardly any vibrations occur despite the eccentricity of the sleeve 44

and counterbalancing is usually not required.

In the preferred exemplary embodiment, the opposite ends of the transfer roller 20 are each supported by adjustable brackets 50. Since the adjustable brackets 50 have the same construction, only the adjustable bracket 50 is for storage

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of the right end of the axle 36 (see Fig. 1). Like on As can best be seen from Figure 2, the bracket 50 has a lever arm 52 running up between the axles for rollers 16 and 22 to support the right end 53 of axle 36. The lever arm 52 is hinged at one end to a stationary axle 54 which is suitably attached to the side frame 12 of the printing machine for reciprocation about the axle 54 which is parallel to the axle the delivery roller 22 runs. The lever arm 52 is at its other or upper end 56, as is best illustrated in Jig.2, forked to form a transverse slot 57 for receiving the end 53 of the axle 36, and has a counterbore 59 for receiving a Holding sliding piece 60 that holds the end 53 of the axle 36, as well as a bore 61 running inward from the counterbore 59 · The countersink 59 forms the arms of the forked end 56 with cylindrical curved side surface 61 from, and the bracket slider 60, which has a circular cross-section, is slidably and rotatably received by the counterbore 59.

The bracket slide 60 has an overall semicircular shape Transverse recess 62 at its upper end (see Fig. 2) to to support the end 53 of the axle 36, and is supported by a spring 64 biased into the opening 61 so that the axis 36 at an adjustable Stop 63 is applied. The compression spring 64 is at its upper end from an opening 65 in the bottom of the mounting part 60 recorded. The spring 64 serves to pretension the slider 60 and axis 36 upwards along the longitudinal axis of the arm and away from a plane containing the axis of rotation of the rollers 16 and 22 and for pressing the axis 36 against the stop 63 ·.

The adjustable stop 63 has an adjusting screw which is screwed into a cross piece 67 with the forked arms is connected at its upper end (see Fig. 2) and is in between

-Ά: · .- ;. · _{r; v} 109812/0027 öKd original

extends. The set screw 63 has a curved inner end 68, which rests on the axis 36 essentially in point contact and on which the axis 36 rests when by the compression spring 64 after up "is biased.

When the set screws 63 of the brackets 50 are turned, the transfer roller 20 is moved transversely to a plane which includes the axis of rollers 16 and 22 to move them laterally towards or away from the supply roller 16 so that the gap therebetween is changed at the lower sections of the roller.

The biasing means 48 for biasing the transfer roll 20 in contact with the discharge roller 22 is a member 70 having one end hinged to the Arn 52 by a pivot pin 71 is _f has screwed while the other end with one end of a rod 72 iet,

The other end of the stables 72 is sliding from a central one Through opening in a screw or head guide socket 73 added, which is screwed into a block 74, which in turn

on the side frame of the printing press 12 by a bearing pin 75 iüif.; fn>; iikt i.; t. A compression spring 76 surrounds the rod 72 and abuts eiηum end to the member 70, while the other end of the to Ko ₁ 'f opposite Lnde 77 of the bushing rests 73, and the member' century 3owi n α Xe Gtunge 72 to the left and the lever arm 52 is pretensioned in the counterclockwise direction (see Fig. 2) and thus the transfer roller 20 is in contact with the delivery roller 22. The compressive force exerted by the spring 76 and thus the size of the system pressure of the roller HUi ^- d-iu W 'iizfi 22 can be changed by turning screw 73 to change its position relative to block 74. A hole nut 7H, which is carried by the screw 73 and is attached to the blook tiiLidf.en k.-inr :, serves i '<ujn SLonem of the screw 73 in its inlaid litr-n L.'itfe relatively sum block 74 ·

D n living «; Ί? tr igt on its opposite to the Hei-olurm

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At the end of 80 a thread and two nuts 81 and 82, including the nut 81 can rest against the head of the screw 73, in order to move the rod 72 to the left and the lever 52 in a counterclockwise direction. (see section 2).

The position of the nuts 80 and 81 relative to the rod 72 can be adjusted so that 'rolls with different diameters can be used, and they can also be used that the contact pressure of the roller 20 on the roller 22 is limited.

From the foregoing description it can be seen that the transfer roller 20 is pretensioned in contact with the delivery roller 22 by the pretensioning device and the pretensioning force exerted can be changed by adjusting or turning the screw 73. It can also be seen that the transfer roller 20 is laterally toward and away from the supply roller 16 duroh. simple "turning of the adjusting screw 63 of the brackets 50 can be adjusted" and that its compression spring 64 keeps the axis 36 aa end 68 of the screw in contact.

An advantage of the bracket 50 is that the location of the Transfer roller 20 relative to the supply roller 16 without noticeable Change of the contact pressure of the transfer roller 20 on the delivery roller 22 can be adjusted, since the transfer roller 20 is held in contact with the outer marking surface of the delivery roller 22, when the transfer roller 20 is towards and away from that of the Yersor- supply roller by moving the pretensioning device 48. Am Another advantage is that the adjustment of the transfer roller can be easily made by simply turning the set screws 63 in the opposite ends of the roller 20 k mn.

Furthermore, through the training of vain point veins, essentially Point of contact between the axis 36 of the roller 20, the screws and>; en Hulturungogloitutucken 60, which about one to the axis 36

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vertical axis are rotatable, a limited lateral displacement the axis 36 can be made. Pas prevents jamming the roller 20 and its brackets and enables a constant contact pressure in the axial direction between the ¥ alze 20 and the Roller 22. The structure described is also easily suitable for Transfer rollers of different diameter and allows a fine adjustment of the transfer roller relative to the supply roller.

Pig. 6 and 7 show a modified exemplary embodiment of a Parbwerk 100. The Parbwerk 100 has the same structure as the Parbwerk 10 by Pig; 1 and 2 with the exception that the transfer roller is not pretensioned in contact with the delivery roller, but rotated around a fixed axis and not at a constant rate Pressure is applied to the transfer roller, and that also the brackets have different structures for supporting the opposite ends of the transfer roller. Those parts of the parquet 100, which are identical to the parts of the inking unit 10, have the same reference symbol *, however, old one, susätsliehen line obtain.

The transfer roller 20 · the farWerks 100 is arranged in relation to the delivery roller 22 * and the supply roller 16 * in such a way that it is constant on the delivery roller 22 and their Außenmaatelfläohe moved in and out of contact with the supply roller 16 * preferably the higher portion of the roller 20 * just touches the supply roller 16 '. When the Parbwerk 100 is in operation, the roller 20 * is pressed in to different degrees by the delivery roller 22 *, since

the former rotates around a fixed axis of rotation.

So that the gap between the transfer roller 20 * and the supply roller 16 * can be changed, the opposite ends of the transfer roller 20 'are each supported by an adjustable bracket 150 in such a way that the transfer roller 20 ¹ laterally to both the supply and delivery roller 16 * or

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22 · is adjustable.

Since the adjustable brackets 150 for holding the opposite ends of the axle 36 have the same structure, only the adjustable bracket 150 for holding the right end 53 ^{1 of} the axle 36 (see FIG. 6) is shown. The holder has an arm 152 for adjusting the position of the axis 36 '. The arm 152 is articulated to one end of the axis 32 'for reciprocating movement about the axis 32', while the other end is carried by a bracket 160 "and is enclosed in its position by the adjacent sieve frame 12 'of the End 54 * of shaft 36 'slidably engages the bottom of a rectangular recess 162 in arm 152 and is retained in recess 162 by hold-down 163 which is bolted or otherwise connected to the top of arm 152.

As best seen in Figure 7, the transfer roller is 20 * laterally to and away from the delivery roller 22 'by a Adjusting device adjustable, which has an adjusting screw 165 which is screwed to the holder arm 152, and the left end thereof lies in the recess 162 and at the adjacent end 53 'of the Axis 36 * is present. The axis 36 'is against the set screw 165 preloaded or rests against it as a result of the contact pressure of the Transfer roller 20 '"to the delivery roller 22'.

So that the transfer roller 20 ″ can be easily adjusted relative to the dispensing unit 22 *, the transfer roller 20 * has an incision or a marking 168 to indicate the deep point B ^{1 of} its eccentric outer circumferential surface 4-6. The transfer roller 20 * is rotated around the To locate marker 168 between and aligned with the line joining the center point of axles 32 'and 36', after which set screw 165 of each bracket 150 is used to support the opposite ends of the axle

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36 'suitable for moving the axis 36 * and thus the transfer roller 20 'are moved relative to the delivery roller 22 * until the minimum value of the desired impression is achieved. After this adjustment, a lock nut 169 »can be carried by the adjusting screw 165, rotated until it touches arm 152 to secure set screw 165. Axis 36 'is inserted in their set position held, as a vertical displacement by the hold-down device 163 and a horizontal displacement as a result of the contact pressure between the transfer roller and the delivery roller and the contact between the axis 36 'and the adjusting screw 165 the opposite ends of which are avoided.

The holder 160 for holding and adjusting the position of the end 170 of the arm 52 opposite to the end articulated on the axis 32 *, so that the transfer roller 20 Arm of a U-bracket 176 is screwed to hold the end 170 of the arm 152, and a compression spring 177 for pretensioning the Anno 152 in contact with the adjusting screw 175. One end of the peder 177 lies on the underside of the upper arm of the bracket 176, while the other end rests against the top of the arms 152, and biases the arm 152 into contact with the upper end of the vertically extending set screw 175. The bottom of the upper arm of the bracket 176 and the top of the arm 152 are provided with two aligned recesses to provide a seat for the opposite ends of the compression spring 177.

From the previous ear friction it can be seen that when turning the adjusting screw 175 clockwise (see «Fig. 7) the Arm 152 around eight; 32 · upwards and opposite to the Yorepension force the spring 177 is rotated, the outer side the Transfer roller 20 move away from supply roller 16 '. if

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the adjusting screw 17t> is rotated in the opposite direction, arm 152 is moved downward about axis 32 'by the biasing force the spring 177 is pivoted so that the roller 20 * closes the supply roller 16 'is moved. Since the transfer roller 20 * is pivoted about the axis 32 'when its position is relative to the Supply roller 16 'is set, its assumed position relative to the delivery roller 22 'is essentially not influenced.

The transfer roller 20 'can be positioned relative to the supply roller 16 'can be easily adjusted to the desired maximum value of the gap between the outer surface of both Get reels by spinning the reel 20 * after it relative to the delivery roller 22 'has been set to the marking 168, which indicates the lowest eccentricity point 3, between the and aligned with the connecting line of the centers of the transfer roller 20 'and the supply roller 16', and then the set screw 175 in the brackets 160 is suitable is threatened in order to obtain the desired maximum S ^ alt \ zwisehen. If the transfer roller is so relative to the supply roller 16 * has been ordered, it can be in this position by a Security nuts 180 are secured by each set screw 175 is worn, and on the underside of the arm of their corresponding Can attack the bracket.

From the foregoing description it can be seen that a very simple adjustable bracket for holding the transfer roller a 20 * is specified by the invention, which easily can be adjusted to make the transmission wale 20 * light and easy quick your be tliehe. Position relative to both the delivery rate 22 · ale uuoh to V (! j-3urgungawalze 16 'change kunn.Ee can also be seen that the holder allows a lateral adjustment of the transfer roller

20 * relative to supply ^ awulzö 16 * without changing your input -

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set position relative to the delivery roller 22 allowed

It can also be seen that the transfer roller of the inking units 10 and 100 is thus arranged relative to the supply roller can be that their Außeniaantexfläehe never the outer jacket surface touches the supply roller and / © d®r that its outer surface always the outer surface of the? Disposal roller 16 'during touched by it every revolution, if so desired Dimensions of the transfer roller are less sensitive and thinner ink films and better control can be achieved can, if the overhead portion of the transfer roller die Touched the delivery roller.

Although the transfer roller of the inking units described above have an outer sleeve 44 or 44 'of different radial thickness, to produce an outer surface that is eccentric to the axis of rotation the transfer roller, other sleeves can also be used. For example, the sleeve could be a circular sleeve with a or a plurality of axially extending projections which are thus formed in one piece and which preferably have a circular outer edge have, or be a circular sleeve of constant radial thickness, with one or more axially extending wires between the inner Metal body and the sleeve of the transfer roller are arranged to projections on one or more distributed on the circumference To train jobs.

The term liquid should be used in the description and the requirements paints and other substances in liquid or paste form are understood »

Claims

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Claims (1)

-16- 19.3 '. T958 "EH / JOT '" My file: 2098 1636321 claims Liquid supply device, marked by a first rotatable roller (22), by a second rotatable roller (20) which rests against the first roller and can be driven by it, by a device. (50,4-8) for rotatably holding the second roller and for biasing the second roller into contact with the first roller, the second roller and the device for holding the second roller being an eccentric device (4-4) for lateral displacement of the axis (36) of the second roller "when the second roller is driven by the first roller, and by a third roller (16) transmitting liquid to the second roller, the shell (46) of the second roller to and away from the Jacket of the third roller when the second roller rotates through the Roller is movable. 2. Liquid supply device according to claim 1, characterized in that that the eccentric device has an outer sleeve (44) on the second roller (20) which is eccentric with respect to the axis of rotation (36) of the second roller is 3. Liquid s supply device according to claim 1 or 2, characterized in that the second roller (20) has an axis (36) projecting at each end thereof, the holder for the second roller having a holder (52) at each end ^{1 of} the second roller and a first member (60) mounted on a spring holder and carrying the adjacent axis of the second roller, so that each first member is rotatably supported by the corresponding holder about an axis which is generally perpendicular to the axis of the second roller, that in each case a pretensioning device (48) is operatively connected to each holder in order to load the holder resiliently so that the second roller is movable in 4e * contact with the first roller, 101112/0027 BADORlGtNAL and in that each Vorspannun ₀ seinrichtung means (73) for adjusting the biasing force. 4 · Liquid supply device according to claim 1, characterized g ο> * e η indicates that the bracket for the second Roller »a first holding unit pretensioned in relation to the first roller (22) (52) and on the first holding unit has a second holding unit (60) which the second roller for moving its axis (36) laterally towards and away from the axis of the third roller (16). 5. Liquid supply device according to claim 1, characterized characterized in that the means for holding and biasing the second roller (20) in contact with the first Roller (22) a first holder (60) at each end of the second roller which supports the axle (36) protruding from the second roller carries a second holder (52) associated with each first holder is and the associated first holder and the Aohee to move on a total perpendicular ssu to the axis of the second Roller running line carries a stop (63) on every second holder on the opposite to the associated first holder lying side of the Achee of the second roller, a pretensioning device (64) which is operative between each first and the associated second holder is arranged to the first holder _to load and move on the line so that the axis of the second roller comes into contact with the stop, and a device (63) has to adjust the stop to the second roller au and weighed from the third roller (16) with the system maintained to move at the first flute. 6. Flü8fngkeitßzufahrinriohtung according to claim 5 »thereby characterized in that the holding device a 10 * 112/0027 second gate tensioning means (48) for loading the second holder (52) in order to move the second roller (20) into contact with the first roller (22).
7. Liquid supply device according to claim 1, characterized in that the second roller (20) has an axis (36) which at each end of the second. The roller protrudes outwards, and that the device for holding the second roller and for pretensioning the second roller in contact with the first roller (22) a first holder (60) which carries one end of the axis of the second roller, a second holder (52) for the rotatable mounting of the first holder about an axis that is generally perpendicular to the axis of the second roller, and a pretensioning device ( 48) for tensioning the second holder to the first roller (22) in order to load the second roller resiliently in contact with the first roller
8 Liquid supply device according to Antpruoh 7> dadurob gekennzel ο h η et that the third roller (16) can supply liquid to the second roller (20) * that the adjustable attachment (63) is on the opposite side of the first holder (60) Axis of the second roller is arranged, and that the second Torsponnungseinrichtung. (64) is operatively arranged between the second holder (52) and the first holder to this on his Axis to move and the axis of the second roller against the stop to charge. 9. Liquid supply device according to claim 8, characterized marked that the adjustable stop (63) a rounded surface (68) in point of contact with the axis (36) of the second roller (20). 10. Liquid feed device according to one of the preceding 109 12/0027 BAD OHtGlNAL languages, characterized in that the second roller (20) has an outer jacket (46) which is eccentric with respect to its axis of rotation (36) and cooperates with the jacket of the first roller (22) "when the second roller rotates about the second roller to and away from the third orphan (16) · 11 · Liquid supply device according to claim IQ, characterized in that the second roller (2O) has a metallic inner body (42) ₉ which is concentric to the axis of rotation (36) of the second roller, in a sleeve (44) made of elastically flexible material, which covers the inner metal body while forming an outer jacket surface (46) on the second orphan. 12 · Liquid supply device according to claim 11, characterized characterized in that the sleeve (46) made of resilient material has a density which is small compared to the material density of the inner body (42) of the second roller (20) i »t · 100 * 12/0027 a.0 Blank page