DE2064639B2 - DEVICE ON AN INKING UNIT FOR PRINTING MACHINES FOR ADJUSTING THE COLOR KNIFE - Google Patents

Description

3. Device according to claims 1 or 2. \ can be rotated. So it is about characterized by one of the tooth segment '6) a structurally very complex device which downstream overload clutch (40). 30 also has the disadvantage that initially the

4th device lutcn the claim to 3rd to the right to be rotated and only then characterized in that the clock generator min- the adjusting screws to be turned to the left hz.w. at least one first, roughly while the one is actuated in reverse: have to be. Much \ oricilhalter Tolpunktlaue of the carrier (7) actuated switching and fast acting would be a device that the contact (16, 17; 23) and at least one two-order of the actuation of the adjusting screws ten. Leaves printer free approximately during the other dead center position.

of the carrier (7) actuated switching contact (18. 19; Furthermore, the device can according to the German

24), and that each driver (10) see patent specification 1 241 K40 no clearly repro-

At least one of the switch contacts (16. 17. 18, reduced position of the screws.

19: 23. 24) upstream selector switch (25. 30; 40 angle of rotation of the screws and thus their travel ranges

31. 35) is assigned. which the triggering of the depend on the period of time in which the control

in engagement of the driver (10) are operated by gene, and thus on the speed of the

from the Schaltkoniaktcn (17. 19; 23. 24) transferred from the carrier drive. In addition, the target is the

hene switching impulses alternatively in one or actuation of the actuating devices not the same

in the other tol point position. 45 Point in time at which the adjustment takes effect,

5. Device according to claims 1 to -i. for this reason alone no reproducible labeling adjustment paths are possible through one of the printing mats. Additional errors, such as independently driven crank mechanism (8) in the displacement path, arise when the switch-ZUi " Generating the back and forth movement of the latch. The size of the screw adjustment will be Carrier (7). 50 analogue by a special measuring instrument

b. Device according to claim 5 measured thereby.

indicates that the switching contacts (16. 17. 18, The invention is based on the object of a

19: 23. 24) of the clock generator arranged stationary Vorriehlumi of the type mentioned with and by means of one with the crank (13) of the crank inlet means that allows the drive (8) connected contact (15) 55 adjusting screws for setting the ink knife with are soundable. to adjust precisely defined travel, d. H. the

7. Apparatus according to claim (1. characterized GE indicates a precisely reproducible number of angles that the switching contacts (16, 17, 18 steps can perform.

19: 23. 24) designed as protective gas contacts. According to the invention, this is achieved in that

are that by one with the crank (13) umlauf- fio each process, the coupling or the uncoupling Fenden magnets (15) each in one winch each of the adjusting screws with the to and fro position the crank (13) can be operated. able carrier by means of a synchronously through this ge

switched clock is controllable and the number of clutch and ELnlkupphmgsvorgänge each 65 can be selected by a counter.

By synchronizing the coupling process

The HiTmdung concerns a device on one with the carrier movement is guaranteed that the Sleflirbv.erk for printing machines to put the screw down when actuating the clutch process

3 4

a clearly defined and reproducible one can be created in a further embodiment of the Ertiiidungsgc twist angle. The (iesehwindigkeil uenstandc if the clock generator has at least one clock generator) can be specified and synchronized with the clock approximately during the one Ί second, approximately during the other loltlurcli the to and fro. to dissolve grief. point position of the wearer actuated sound contact on Upstream selector switch to-Jies multiple of what is achieved during a lift of the trailer, which enables the triggering of the adjustable angle of rotation in a sequence to bring the driver through the sound the printer is hot The beginning of a print mode can roughly lead to one or the other dead center position according to a test print.
MIIi. This arrangement ensures that every

In an advantageous Ausiesiulumn des F.viin- 15 the driver in each dead center position of the 1 rägers article of sale indicates every entrainment ring and thus the respective adjusting screw -. \ ahleiiien single, remotely operated driver. the wise in ouer counterclockwise around the during a to-or-fro movement: .ig of the carrier fixed angle \ can become ground-level. Of the with a toothed selector switch connected to the adjusting screw represents a switch that causes dall segment first in and then out of engagement 20 the engagement of the driver with the tooth can be brought. s -. 'üment once during the one dead center position of the

The toothed segment can be a fully designed carrier and when changing the switch during the Be gear, which takes place on the shaft in each case a different dead center position of the carrier. Shower screw is stilted. Hs can also be a tooth sequence of the movement of the driver remains be rod whose reciprocation is obtained by a 25. Hs is only the beginning of the competition Gear shifted in rotation by the amount of movement. The use of ie- (lelbar is. However, the toothed segment does not have to come in with two safety contacts instead of one the adjusting screw that actuates the ink knife has only a switching connection in every dead center position be attached directly. Rather, Hs can have consequences in terms of kinematics and technology and affects that seller reversal with a rotatable, but not axially 30 principle.

non-displaceable mother be connected, in wel- Hrfindungsgeinäß the carrier will be one of

rather, the adjusting screw secured against rotation of the printing press independent crank mechanism

is axially movable. The tooth shape of the tooth saw- generating the back and forth movement of the wearer

mems is preferably symmetrical, and driven with the. Independent of the printing press

The tip of the center drive, which comes into contact almost every tooth, allows the adjusting screws to be adjusted

The receiver is preferably tooth-shaped with a corresponding also when the machine is at a standstill. Furthermore are

hasty flanks formed. This means that »the accelerations and inertia forces that occur

Met. That for both directions of movement the same crank drive in the dead spots overlooks

conditions exist and the wear of the tooth bar. The back and forth movement can of course also

flanks is low. Hs is therefore with the simplest means 40 by electromagnet, hydraulic or pneumatic

achieved, the actuating generated on em color knife acting.

screw in precisely defined step sizes.

place. This step-by-step adjustment is also useful because the switching contacts

according to the adjustment of the dosage per se of the clock arranged stationary and by a

known pump inking works. The carrier 45 is connected to the crank of the crank mechanism

mer can be mechanically switched by an electromagnet contactor. By changing the

or by a pneumatically or hydraulically actuated crank length, the stroke of the carrier can be adjusted in a known manner

activated piston are moved. Way to be changed. The angular position in which

The process of Bewemmg, for example, a ma the switching contacts are actuated. ble ^; bl of it un-

Active driver: Movement in the children 50 influenced.

grip position. Preservation of the intervention during the invention, the switching contacts are as

Back and forth movement of the carrier. Movement formed from inert gas contacts, which by a with

the engagement division out, return movement of the carrier K'M'b.i rotating magnet in each case in the

yers. is expediently operated by an electrical angular position of the crank.

see switching elements controlled. However, it can also be relatively cheap and therefore

if other control circuits known in the art are to be preferred,

be used. As a non-contact switching contact: wä-

According to the invention, the toothed segment has an excess, but also magnetic field-dependent resistances,

load coupling downstream. which can be used, for example, with diodes or general generators. An Aus

In any case, noise would result in too strong a formation of the switching contacts as a light barrier

pressing the adjusting screw on the ink knife and insofar advantages as the sound time through

so that the resulting damage can be reliably and precisely determined upstream of panels

avoids. A '' kind of overload clutch offers can.

In this regard, there is greater certainty than, for example, in the description

an electrical limit switch. The invention is expediently illustrated by schematic drawings

the overload clutch arranged so that in the over- explained: in this shows

load case the tooth segment is opposite to the Mit- F i g. 1 is a rope view of the learners

taker does not move. Contraption.

Fig.! a an enlarged section of the device according to FIG. 1.

F i g. 2 shows a view of the device partially in section along the line II-II in FIG. 1 in a larger Scale, "

Γ i g. 3 a view of the drive of the carrier of the device with four switching contacts,

F i g. 3 a a view of the drive of the carrier of the device with two Sehaltkontaktcrl,

4 and 5 each show a block diagram of the controller m a driver through two switching contacts.

F i g. 6 and 7 each show a block diagram of the control of a driver by four sound contacts and

F i g. 8 is a block diagram of the control of a plurality of drivers by four switching contacts.

The thickness of the ink film on the fountain roller 1 of an inking unit, not shown is according to Fig. 1 by the position of a color knife 2 determined by a plurality of adjusting screws 3 arranged along the ink fountain roller 1 can be pressed more or less against the ink fountain roller 1. This is a regulation of the Ink film over the length of the ink fountain roller 1 is possible. Each adjusting screw 3 is fixed in the inking unit Frame parts 4. 5 lurked to be displaceable in the axial direction. The shift is done by twisting the adjusting screw 3. which is provided with a thread on its circumference. the one with a threaded hole cooperates in the frame part 4. A gearwheel 6 is attached to the adjusting screw 3. In the frame lines 4. 5, a carrier 7 is slidably mounted, which according to FIG. 3 by a crank mechanism 8 in a reciprocating motion can be displaced. Lifting magnets 9 are attached to the carrier 7. the cores of which are designed as drivers 10. Each adjusting screw 3 is a lifting magnet 9 or a Driver assigned 10. The driver 10 are on the one hand by compression springs 11 support the carrier 7 and on the other hand on a projection 12 of the magnetic core, printed in a position in which they with the respective gear 6 of the Adjusting screw 3 are not engaged. Reversed are the drivers 10 with the associated gear 6 wrapped around when the magnets 9 are energized. The drive of the carrier 7 takes place according to FIG. 3 by a crank mechanism 8. The Crank 13 is driven by a gear motor 14 and carries a permanent magnet 15. of approximately in the two dead center positions of the carrier 7 protective gas contacts 16, 17, 18 and 19 switches the Inert gas contacts 16 to 19 are arranged on a disc 20 attached to the motor housing, which after loosening a screw 21 can be turned slightly.

The control of the movement of the carrier 10 in the course of a reciprocating movement of the carrier? is explained on the basis of the block diagrams according to FIGS. The arrangement according to the F'C. 4 and 5 has two switching contacts of a clock. each of which has one contact 23 approximately during one and a second contact 24 approximately during the other dead center position Trailer 7 is operated (see also Fig. 3 a). By action of the selector switch 25 in Fig. 4 is the movement sequence of the driver 10 is preselected for an adjusting screw 3. Then the switch contact releases 23 a switching element 26 and üiüß the magnet 9 attract. The switching element 26 prepares at the same time the actuation of a second Sehaltelemcntes 28 and a third switching element 29 before. When a switching impulse occurs as a result of closing of the switching contact 24 (shown in dashed lines), the second Sehall element 28 is finally actuated. As a result, the prepared third switching element 29 is actuated, the selector switch 25 and the switching elements 26 and 28 resets, whereupon the magnet 9 falls off again. The gear 6 according to FIG. 3 was twisted counterclockwise by one tooth. F i g. 5 shows the same block diagram as Fig. 4. Here only the selector switch 30 was operated. The switching contact 24 then triggers the attraction of the magnet 9. while the switch contact 23 den Magnet 9 can fall off again. In this case, the gear 6 according to FIG. 3 by a tooth in the Twisted clockwise.

The arrangement according to FIGS. 6 and 7 contains four switch contacts 16. 17. 18 and 19. By actuation of the selector switch 31 in FIG. ft is the triggering of a first switching element 32 by the Switching contact 17 (see also Fig. 3) prepared. The switching element 32 actuates the magnet 9 and prepares the actuation of a second Schaltelcmcntes 33 before. At the same time, the sound impulses of the Schak contact arrive 17 to a counter 34. When a Sehaltimpuises arrives via the switching contact 18 (dashed line shown) the switching element 32 is reset and the magnet 9 emits sound. The process repeats itself until the counter 34 after a selectable number of switching pulses of the sound contact 17 interrupts the forwarding. Fig. 7 shows this same block diagram as Fig. 6. Here was only the selector switch 35 is actuated, which means that it is no longer the switch contacts 17, 18 but the switch contacts 19. 16 determine the control sequence. In the first case, the gear wheel 6 of the adjusting screw 3 was opposed and twisted clockwise in the second case.

Fig. 8 shows a block diagram for several drivers. The arrangement again contains four Switching contacts 16. 17. 18. 19 according to FIG. 3. When the selector switch 31. 3Γ and 31 "according to FIG. 6, the switching contacts 17, 18 determine the control process, and there are also magnets 9. 9 'and 9 "are operated so that the respective gear 6 in the same way as in the arrangement twisted counterclockwise according to Fig. 6 will. When the selector switches 35. 35 'and 35 "are actuated, the switching contacts 19. 16 come into effect, and the control process takes place as shown in FIG. 7 explained. The description shows that the printer for setting the ink film thickness in the axial direction of the ink fountain roller 1 any Number of verses screws in and at the same time against any number of adjusting screws clockwise by pressing the cntspre chcndcii selector switch. Glciclizeitij the printer can adjust the size of the torsion unit by setting the counter 34, 34 ', 34 "accordingly preselect.

According to FIG. 1 a, the gear 6 is followed by an overload clutch 40. This exist from a disk 4 fastened to the gearwheel 6 and loosely rotatable with it on the adjusting screw 3 and one arranged on the set screw so that it cannot rotate but is axially displaceable by means of a wedge 42 Washer 43. The opposite end faces de

Washers 41, 43 are toothed for better adhesion and are supported by a spring 44, which is supported on an adjusting ring 45 fastened on the adjusting screw 3, pressed together. A further adjusting ring 46 fastened on the adjusting screw 3 prevents it

an evasion of the gear 6. The torque i which can be transmitted by the overload clutch 40: determined by the force of the spring 44 and can be changed by moving the adjusting ring 45 the.

For this purpose, 1 sheet of drawings

Claims (2)

Ink knife compared to the ink fountain roller by means of patent claims: several lan »::" of the ink knife arranged and acting on this adjusting screws, which to their 1. Device on an inking unit for print rotation at times via controllable Mitnahm.emasdiinen For setting up the ink knife 5 devices with a movable back and forth are coupled to the ink fountain roller by means of several carriers. Tangs of the color knife arranged and on die- Such devices are used in particular ses acting adjusting screws, which for their multi-color printing machines the purpose. Setting Rotation at times via remote control devices on the inking unit or the inking units from one facilities with el. η back and lierhcweubaivn io central point, for example from the display or Carriers can be coupled, so that they can be removed from a voting table, draws attention to the fact that every process of coupling voi exposure for the usability of such or the uncoupling of each of the adjusting screws VerclKorrichumgen the possibility is less (3) with mourning that can be moved back and forth (7) and reproducible travel ranges. by means of a synchronously switched through this 15 through the German Paientschrüt 1 241 X40 is a Clock (16. 17. 18, 19: 23, 24) controllable device is known, namely two each one Siell- and the number nr clutch and uncoupling screw assigned switching pawls on a back management processes are appended by a counter (34) and moving forward is selectable. the one with a second, constantly moving back and forth 2. \ 'device according to claim 1, characterized by 20 carriers by means of remote control devices indicates that each carrier device can be coupled. Optionally under one for indentation a single, remotely accessible driver (10) or the other pawl, i.e. to change has, which selects a backward or downward direction of rotation of the adjusting screws, is another Suing of the carrier (7) with a Himüekorgan \ orgcsehen operated with the solenoid. This the toothed segment (6) connected to the screw (3) in and then disengaged together. so that with a fun-and-fro movement is cash. "" "of the Trätzers the adjusting screws only in one direction