U.S. patent number 3,848,439 [Application Number 05/308,014] was granted by the patent office on 1974-11-19 for device for impregnating and dyeing wide textile webs.
This patent grant is currently assigned to Kleinewefers Industrie Companie GmbH. Invention is credited to Karl Peter Lopata.
United States Patent |
3,848,439 |
Lopata |
November 19, 1974 |
DEVICE FOR IMPREGNATING AND DYEING WIDE TEXTILE WEBS
Abstract
A device especially for impregnating and dyeing wide textile
webs in a continuous manner, which includes a vacuum device, at
least one roller and a liquor receiving container, which when being
viewed in the direction of the movement of the textile web to be
treated, is located behind said container, said vacuum device
comprising a hood extending approximately over the length of said
roller and being equipped with a rim-shaped structure along its
edge into which is placed an elastic endless sealing strip adapted
to be pressed against said roller, the lower section of the hood
being immersible into the liquor container.
Inventors: |
Lopata; Karl Peter (Krefeld,
DT) |
Assignee: |
Kleinewefers Industrie Companie
GmbH (Krefeld, DT)
|
Family
ID: |
5825479 |
Appl.
No.: |
05/308,014 |
Filed: |
November 20, 1972 |
Foreign Application Priority Data
|
|
|
|
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Nov 18, 1971 [DT] |
|
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2157257 |
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Current U.S.
Class: |
68/184; 68/62;
68/175; 118/50; 68/19.1; 68/202; 118/421 |
Current CPC
Class: |
D06B
1/142 (20130101); D06B 1/144 (20130101) |
Current International
Class: |
D06B
1/00 (20060101); D06B 1/14 (20060101); B05c
001/10 (); B05c 003/132 (); B05c 011/115 () |
Field of
Search: |
;68/200,202,203,175,20,43,62,97,158,5E,184,19,19.1,181R
;118/50,50.1,421 ;162/297 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hornsby; Harvey C.
Assistant Examiner: Coe; Philip R.
Attorney, Agent or Firm: Becker; Walter
Claims
What I claim is:
1. A device especially for impregnating and dyeing wide webs of
textile material in a continous manner, which includes container
means adapted to receive impregnating and dyeing liquid, roller
means mounted to extend into said container means, vacuum means
arranged adjacent said roller means and comprising hood means
extending approximately over the length of said roller means and
having its marginal area equipped with a rim-shaped structure, said
vacuum means also comprising an endless sealing strip arranged in
said rim-shaped structure and being positioned to press against web
material passed between said roller means and said vacuum means,
and means for feeding a web to be treated between said roller means
and said vacuum means.
2. A device according to claim 1, in which said vacuum means
partially enters said container means.
3. A device according to claim 1, which includes means for
adjusting said container means as to height.
4. A device according to claim 1, in which said vacuum means
includes a vacuum chamber and also includes a vacuum line
connectable to a blower, and conduit means for withdrawing
liquor.
5. A device according to claim 1, in which said hood means
comprises an arched plate with parallel longitudinal edges and
curved end edges, said hood means also including rim-shaped
structures connected to said longitudinal edges and to said end
edges for receiving sealing strip means.
6. A device according to claim 1, which includes means operatively
connected to said vacuum means for selectively moving the same
toward and away from said roller means.
Description
The present invention relates to a device for impregnating and
dyeing wide textile webs in a continuous manner, which includes a
vacuum device, at least one roller and a liquor container arranged
behind the roller when looking in the direction of movement of the
textile web.
For cold or warm impregnating textile webs, it is known to vent the
web prior to immersing the same into the impregnating liquor and to
effect such venting by exposing the web to a vacuum. The device
used in this connection includes a vacuum device which when looking
in the direction of movement of the material to be treated is
located ahead of the liquour container.
It is an object of the present invention to provide a device which
will make possible an optimum venting of the webs while permitting
a continuous movement of the webs.
This object and other objects and advantages of the invention will
appear more clearly from the following specification in connection
with the accompanying drawings, in which:
FIG. 1 diagrammatically illustrates the device according to the
invention with the vacuum hood on a roller and immersed into the
liquor container.
FIG. 2 shows on a larger scale than FIG. 1 a plan view of the hood
with a sealing strip applied to the squeeze roller.
FIG. 3 diagrammatically illustrates a side view of a padding
machine with a device according to the invention.
The device according to the present invention for impregnating and
dyeing wide textile webs in a continuous manner, which is equipped
with a vacuum device, at least one roller and a liquor container,
is characterized primarily in that the vacuum device comprises a
hood which extends approximately over the length of one of the
rollers and at its marginal area has a rim-like structure into
which is inserted an elastic endless sealing strip which is pressed
against the respective textile web section on the roller while the
lower section of the hood is immersed into the liquor
container.
Overpressure chambers and vacuum chambers cooperating with squeeze
rollers are known per se. Over these known arrangements, the device
according to the invention has the advantage of a high sealing
possibility while the textile web is subjected to relatively low
stresses.
Preferably, the hood comprises an arched plate with a length
approximately corresponding to the length of the roller, and with
transverse rims which are curved and with longitudinal rims which
are parallel to the roller, the endless rim-like structure being
mounted on the longitudinal and transverse rims.
According to a further feature of the invention, the liquor
container is adjustable as to height so that the vacuum device is
easily accessible.
According to a further development of the invention, the hood has
associated therewith a vacuum chamber with which it is in
communication and into which lead a vacuum connection and a suction
line for withdrawing liquor. The vacuum device itself may be
adjustable in a direction toward one roller and away from the same.
In this way there is obtained the possibility of varying the
pressure at which the elastic endless sealing strip is pressed
against the roller, the two curved transverse rims of the plate
with their rim structure being adapted to the contour of the
surface of the roller and describing a threedimensional curve.
Referring now to the drawings in detail, the textile web 1 is in
the direction of the arrow 2 conveyed to a full width roller 3
which may be driven and is located above a roller 4 which latter
rotates in the direction of the arrow 5. The textile web 1 is
passed over the respective lateral circumferential section 4b of
roller 4 and over a guiding roller 6 from where it is withdrawn
after having passed through the roller gap between two rollers 7
and 8. The roller 4 partly immerses into a liquor 9, for instance,
an impregnating liquor.
The lower section of a vacuum device generally designated with the
reference numerall 11 extends into the liquor 9 and comprises a
hood 12 with a connection 13 which in its turn is connected to a
vacuum pump. Furthermore, a second connection 14 leads into the
hood 12. Through the second connection 14, liquor trickled into
hood 12 is withdrawn. The hood 12 is formed by an arched plate 15
the longitudinal rims 16, 17 of which (FIG. 2,) are parallel to the
roller 4, whereas the transverse rims, of which only the left
transverse rim 18 is shown in FIG. 2, is curved. The hood plate 15
has its rims or marginal portions 16, 17, 18 provided with a
rim-like structure 19 into which is placed an endless elastic
sealing strip 20. This strip 20 will, in view of the shape of the
rim-like structure 19, over its entire extension uniformly engage
the circumference of the roller while the sections 21 of the
sealing strip at the curved transverse rims 18 with the
corresponding sections of the rim-like structure follow a
threedimensional curve. Hood 12 may be held on a frame 22 which by
means of a rod system 23 is connected to a stationary part.
When employing the device according to the invention in connection
with an impregnating machine according to FIG. 3, the textile web 1
is again passed in the direction of the arrow 2 over a full width
roller 3 and a squeeze roller 4 which is engaged by a doctor blade
24 in order to strip adhering liquor off the roller 4. A second
squeeze roller 25 cooperates with the roller 4 while the textile
web 1 is first passed over the circumferential section 4b of roller
4 and over the guiding roller 6 and is subsequently withdrawn
through the roller gap between the rollers 4 and 25 and over an
additional guiding roller 26. The roller 4 is immersed in the
impregnating liquor 9 in the liquor container 27. The container 27
has a connection 28 which through conduit 29 communicates with the
liquor circulating container 30.
The container 27 has associated therewith a trough 31 for catching
the impregnating liquor which flows over the overflow 32 and which,
through the connection 33, the conduit 34, the pump 35 and the
conduit 36, is conveyed to the container 30.
The lower section of the vacuum device 11 extends into the liquor
container 27 the marginal section of which may be somewhat higher
than shown in the drawings and extends beyond the shafts 4a, 25a of
the two rollers 4, 25.
The hood 12 has associated therewith a vacuum chamber 27. The hood
plate 15 is provided with corresponding perforations in such a way
that the interior of the hood 12 and the interior of the vacuum
chamber 37 communicate with each other.
The vacuum device 11 is by means of a device 38 adjustable in the
direction toward roller 4 and away therefrom so that the pressure
at which the sealing strip 20 of hood 12 is pressed against roller
4 may be varied.
The liquor which has entered the hood 12 and the chamber 37 is
withdrawn through conduit 39 which latter through a conduit 40, a
pump 41 and a further conduit 42 communicates with the container
30.
A vacuum conduit 43 which communicates with a blower B leads into
the vacuum chamber 37.
The liquor container 27 and the associated trough 31 are adapted by
means of a lifting device 44 to be lifted and lowered so that after
the lowering of the liquor container 27 with the trough 31 and the
withdrawal of the hood 12 with chamber 37 from roller 4, it will be
possible, on the one hand, easily to clean the hood 12 and the
chamber 37 and, on the other hand, easily to withdraw the rollers 4
and 25 while the trough 31 can likewise be easily cleaned.
As will be evident from the above, the construction according to
the present invention provides, by means of the hood comprising an
endless sealing strip, a vacuum device which on all sides
elastically engages the roller.
It is, of course, to be understood that the present invention is,
by no means, limited to the specific structure shown in the
drawings but also comprises any modifications within the scope of
the appended claims.
* * * * *