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Nov. 13, 1962
KARL-HEINZ LIESSEM
FAST EXCHANGE DEVICE FOR PRINTING ROLLERS
.OF PRINTING MACHINES
Filed July 2'7, 1960
3,063,368
'
4 Sheets-Sheet l
FIG-3
Nov. 13, 1962
KARL-HEINZ LIESSEM
FAST EXCHANGE DEVICE FOR PRINTING ROLLERS
Filed July 27, 1960
3,063,368
OF PRINTING MACHINES '
4 Sheets-Sheet 2
FIG-4
FIG-8
Nov. 13, 1962
KARL-‘HEINZ LIESSEM
FAST EXCHANGE DEVICE FOR PRINTING ROLLERS
0F PRINTING MACHINES
Filed July 27, 1960
3,063,368
4 Sheets-Sheet 3
FIG-5 .3'5
INVEN TOR.
6/0r/- 6’: ing! 1,‘: s; e m
Nov. 13, 1962
Filed July 27,
KARL
HEINZ LIESSEM
3,063,368
FAST EXCHANGE DEVICE FOR PRINTING ROLLERS
OF PRINTING MACHINES
1960
.4 Sheets-Sheet 4
' Uilii?
,.
States
1C6
3,053,358
Patented Nov. 13., 1962
1
2
3,063,368
be effected, it will merely be necessary to remove the pre
viously employed units and replace the same by the new
FAST EXCHANGE DEVICE FOR PRINTENG
ROLLERS 0F PRINTING MACHINES
Karl-Heinz Liessem, Krefeld, Germany, assignor to Join.
Kleinewei’ers Sohne, Krefeld, Germany
Filed July 27, 1960, Ser. No. 45,683
Claims priority, application Germany Aug. 5, 1959
5 Claims. (Cl. 101-178)
printing roller units. The only additional step necessary
consists in adjusting the pressure at which the rollers
press against the main cylinder, a step which is to be
taken anyhow when setting the machine.
Structural Arrangement
Referring now to the drawings in detail and FIG. 1
The present invention relates to roller printing ma 10 thereof in particular, the printing rollers 2, for instance
six, are arranged around a cylinder 1. The goods to be
chines, particularly for textiles, and a fast exchange ar
printed pass between the printing rollers 2 and cylinder 1
rangement for the printing rollers of such a printing ma
chine.
v
When operating roller printing machines in textile proc
essing plants, the long time required when changing a
printing design is so time consuming and expensive that
a resetting of a roller printing machine for a new design
together with a printing cloth and an additional cloth
while moving in the direction of the arrows A. The print
ing rollers 2 together with the dye containers 9 and doctor
blades .12 (see FIGS. 2 to 6) form structural units as
clearly shown in the drawings while the dye containers
occupy different positions relative to the cylinder 1 or to
the horizontal plane as is clearly evident from FIG. 1.
The printing roller units will now be described in
The fact that heretofore considerable time was neces 20
detail in connection with FIGS. 2 to 7 and 9. As will
sary to set a roller printing machine for a new design was
be seen from these ?gures, the dye container 9 comprises
due to the necessity of removing the printing rollers in
a sheet metal bowl 9a only partially surrounding the
the machine with their auxiliary devices, and cleaning the‘
is only economical when considerable yardage, as for in
stance from 10,000 to 20,000 yards, is involved.
printing roller 2 which latter is keyed to the printing roller
removed equipment whereupon the parts had to be in
serted again into the printing machine with other rollers. 25 shaft 8. The bowl 9a is provided with longitudinal ribs
310 for stiffening said bowl. For purposes of sealing the
It was furthermore necessary to readjust all auxiliary de
dye container 9 with regard to the printing roller 2
vices, such as doctor blades, dye containers, and dye
rollers.
While a closed design of a pressure unit is
on one side thereof, there is provided a counter blade '11
which may consist of any suitable material, for instance
known, the rigid connection of the parts to each other
has not heretofore permitted proper relative adjustment 30 of synthetic material. The said counter blade 11 is ad
justable by any standard means. If desired, at this point
of the parts. In particular, a highly effective seal is
also further auxiliary means, as for instance a cleaning
needed between the doctor blade and the lateral walls of
brush 22, may be provided for stripping off textile snarls
the container.
or the like from the respective printing rollers. Along
It is, therefore, an object of the present invention to
provide a fast exchange arrangement for printing rollers 35 the longitudinal edge a sealing relative to the printing
roller is effected by the doctor blade 12 which is fastened
of roller printing machines, which will overcome the
above mentioned drawbacks.
It is another object of this invention to provide a fast
to a blade rail 13 and by means of a stud 14 is rotatably
journalled in a manner known per se in a blade adjust
ing device 15, 16. Inasmuch as the blade forms by it
ing machines, which will cut the exchange time for the 40 self a unit and on the other hand has to carry out an os
cillating transverse movement, it is required that the
printing rollers down to a minimum, possibly below one
exchange arrangement for printing rollers of roller print
hour, so that it will also be economic to reset and equip a
doctor blade has to be connected in a liquid-tight manner
with the upper edge of the dye container 9 by an elastic
textile roller printing machine for short yardage and even
means. This means comprises a highly elastic foil 17
for patterns.
These and other objects and advantages of the invention 45 which is fastened to the blade and is fastened at the
upper end of the dye container for instance by an ad
will appear more clearly from the following speci?cation
hesive.
'
in connection with the accompanying drawings, in which:
The dye container chamber con?ned by the doctor
FIG. 1 is a diagrammatic side view of the principal ele
blade 12, counter blade 11 and bowl 9a has to be sealed
ments of a roller printing machine.
FIG. 2 is a top view of the right-hand upper printing 50 at the end faces. This is effected by walls 20 which are
roller unit.
so shaped as to ?t the thus formed dye container. Ac-'
FIG. 3 is a section taken along the line 3-3 of FIG.
cording to a further feature of the present invention, the
1 but on a larger scale than that of FIG. 1.
complete seal of said side walls is effected by pneumatic
FIG. 4 is a section taken along the line 4——4 of FIG. 3.
diaphragms 23 which are arranged on the circumference
55
FIG. 5 is a section taken along the line 5—5 of FIG. 3.
of the side walls 20 and may be in?ated for instance by
FIG. 6 is a section taken along the line 6-6 of FIG. 3.
compressed air. In this way, the entire dye container
FIG. 7 represents a section taken along the line 7--7
of FIG. 6.
FIG. 8 is a carriage for the printing roller units with
built-in cleaning system.
FIG. 9 illustrates how the entire printing roller unit is
inserted into the printing machine.
chamber will be sealed in such a way that the liquid in
said container will be completely enclosed even when the
doctor blade hangs downwardly as is the case for instance
60
with the two lowermost doctor blades of FIG. 1. The
inflation of the pneumatic sealing device is effected
through connections 24- adapted to be connected to a
source of compressed air.
General Arrangement
The ?lling-in of the dye into the dye containers may
The fast exchange arrangement for printing rollers of 65
be
effected in a manner known per se by pumping the
textile printing machines according to the present inven
dye
through hoses or pouring the dye into funnels 25
tion is characterized primarily in that the printing rollers,
(FIGQ6) respectively connected to the bowls 9a. Of
the dye container, the doctor blade, the counter blade,
and further accessories are combined in a unitary print
course, the location of the funnels on the bowls 9a varies
relative to each other prior to the insertion into the print
ing machine so that when a change in the design has to
sure roller is to be mounted with regard to cylinder 1.
ing roller unit, all of said parts being completely adjusted 70 depending on the particular location at which the pres
For purposes of combining the dye container 9 with
3,063,368
4
the printing roller 2.
,
2. A roller printing machine, especially for the print
the respective pressure roller 2 with a pressure unit, the
dye container is, by means of adjusting elements 19 and
by means of bearing sleeve 18, journalled on stud 9 of
ing of textiles, a main cylinder about which the material to
be printed passes, a printing roller adjacent the cylinder,
a dye container adjacent the printing roller and on which
In this way, a ?xed relative con
nection is created between the printing roller 2 and the
the printing roller is journalled, a doctor blade on the
respective dye container pertaining thereto together with
all other required members.
container at one side engaging the roller, a counter blade
on the container at the other side engaging the roller,
the said printing roller being journalled on the dye con
tainer by adjustable means, means detachably support
inasmuch as, as mentioned above, the pressure roller
unit will, depending on its relative position with regard
to the cylinder 1, vary in its suspension with regard to 10 ing said dye container adjacent the cylinder to place the
printing roller in operative relation with said cylinder,
the horizontal plane, it is necessary that these positions
said dye container being detachable for being replaced
be clearly defined and determined on the pressure roller
To this end, a cam 21 is mounted on the side
by another dye container having another printing roll, at
walls 20 of the dye container, said cams resting on abut
ment surfaces 22 of the machine frame.
The present invention can most effectively be made use
of by having ready at hand a replacement set of pressure
least the end walls of said container ‘being shaped to ?t
about the said roller in spaced relation thereto, an in?ata
ble seal carried by each said end wall expansi‘ble into seal
ing engagement with said roller, and means for supplying
roller units which is cleaned and properly adjusted prior
a gaseous medium under pressure to said seals.
mechanism comprising a correspondingly large storage
with said cylinder for printing textile materials passing
around the cylinder, a dye container extending partway
frame.
3. A roller printing machine especially for textile mate
to a pressure roller change and which is in its ready posi
tion on a corresponding carriage. Such carriage may in 20 rial having a cylinder about which the material to be
printed passes, a printing roller in pressure engagement
conformity with FIG. 8 also be provided with a cleaning
container 29 for the cleaning ?uid, a liquid pump 30 and
respective printing machine during roller exchange will
around the printing roller and having an outer wall, a
doctor blade mounted on one side of the container on
sure, and the printing machine is ready for operation.
carried by each end wall for in?ating the seal element
a hose 31.
The pressure roller units removed from the
said outer wall and engaging the periphery of the print
then be deposited on said carriage and will be successively
ing roller, a counter blade on the other side of the dye
cleaned from top to bottom and will be adjusted anew.
container on said outer wall also engaging the periphery
'FIG. 9 illustrates how the prepared and adjusted unit
of the printing roller, said blades forming a seal against
is placed into the guiding and supporting arms 34 of the
printing machine. As soon as the axle studs 32 of the 30 the roller, said container together with the printing roller
journalled therein and the said blades ibeing removable
respective printing rollers 2 are located in front of the
from
the printer and installable therein as a single pre
bearing members 33 of the present device, the present
adjusted unit, end walls for said container ?tted between
device is in any convenient manner displaced until the
said outer wall and said roller, an expansible hollow seal
printing rollers engage the main cylinder 1. Thereupon,
element about the periphery of each end wall, and means
the printing diaphragm 35 is subjected to pneumatic pres
thereon.
It is, of course, to be understood that the present in
4. A roller printing machine according to claim 3 in
vention is, by no means, limited to the particular con
which the said doctor blade is reciprocable axially of the
struction shown in the drawings but also comprises any
modi?cations within the scope of'the appended claims. 40 printing roller and the dye container and is also sealingly
engaged by said seal elements, and an elastic member
Thus, the application fully applies if the dye containers
attached to the outer wall of the dye container adjacent
are designed as open troughs which are located horizon
the doctor blade and bearing against the doctor blade to
tally below the pressure rollers. Naturally, also hereto
maintain a seal between said outer wall of the dye con
fore known units with dye applying and distributing roll
tainer and the doctor blade during reciprocation of the
said doctor blade.
5. A roller printing machine according to claim 3
ers may be employed. However, such arrangement in~
creases the weight of the unit considerably so that the
structure speci?cally described in the present applica
in which said in?atable seal elements on the end walls
not only sealingly engage said outer wall thereof and of
tion with a dye container closed on all sides is to be con
sidered preferable.
I claim:
1. In a roller printing machine, especially for printing
50 the printing roller but also seal between said end walls
and said counter blade and the doctor blade thereby
textiles and having a cylinder with a printing roller ad
jacent thereto; a dye container associated with the print
ing roller, a doctor blade and a counter blade carried
by the dye container and operatively associated with the 55
printing roller, said roller and dye container and doctor
and counter blades being interconnected to form a single
unit, means for detachably mounting ‘said unit in opera
tive association with said cylinder whereby the units can
be interchanged in their entirety, and means carried by 60
said unit for sealing the unit to the printing roller com
prising ?exible in?atable means and means for in?ating
said in?atable means.
e?ecting the entire sealing of said outer wall against the
said [blades and the said roller.
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,042,060
Kaiser ____________ __ May 26, 1936
2,151,960
2,435,791
Ericksson __________ __ Mar. 28, 1939
Luehrs ______________ __ Feb. 10, 1948
2,717,550
Behringer __________ __ Sept. 13, 1955
2,792,781
2,821,913
Kaldschmidt ________ __ May 21, 1957
Johnson ____________ __ Feb. 4, 1958
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