Title of Invention

APPARATUS FOR SETTING OF CARDING INTENSITY IN A CARDING MACHINE

Abstract The invention relates to an apparatus for setting carding intensity in a carding machine, wherein at least one stationary carding segment (17) comprising a carrier (18) together with at least two carding elements (19a to 19f) is associated with a roller (4), which carding elements are arranged behind one another in the direction of rotation (4a), of the roller, and wherein the clothing (46) of the carding elements and the roller clothing are located opposite one another, characterized in that the carding surface (20a, 20b) of at least one carding element forms an angle (∞,β) with a respective tangent (21a, 21b) at the clothing of the roller, in that the carding elements are arranged in stationary manner with respect to the roller, and in that said carding segment (17) exclusive of said carding elements, is immovable.
Full Text The invention relates to an apparatus at a carding machine, wherein at least one
tationary carding segment comprising a carrier together with at least two
carding elements is associated with a roller, for example a cylinder, which
carding elements are arranged behind one another in the direction of rotation of
the roller, and wherein the clothings of the carding elements and the roller
clothing are located opposite one another.
In a known apparatus (EP 0 431 482), a plurality of stationary carding segments,
each comprising three fixed carding elements, are associated with the cylinder of
the carding machine, each of them being fastened by means of end parts to the
associated side frame of the carding machine. The mounting surfaces for the
three fixed carding elements on a carrier are so matched to the curvature of the
cylinder that, when the carding segment has been optimally set, the width of
each carding element extends ...

perpendicular to a respective radius of the cylinder. The
carding surfaces of the carding elements are accordingly,
in each case, oriented parallel to a corresponding tangent
at the clothing of the cylinder. Re-setting can be so
performed, for example with the aid of a suitable gauge,
that the clothing of one of the carding elements has a
desired spacing from the clothing of the cylinder. However,
in all probability, the clothings of the other two carding
elements will not then have the desired spacing from the
cylinder clothing. The desired setting is achieved by means
of a pivoting movement of the carding segment about a
predetermined axis. During that pivoting movement, all
three inter-connected carding elements are displaced until
the desired setting has been achieved, at which setting the
width of all the carding elements extends perpendicular to
a respective radius of the cylinder. The complexity of the
construction for pivoting and fixing the carding segment is
disadvantageous. It is also disadvantageous that
orientation of the carding elements parallel to a
respective tangent at the roller results in increased fibre
damage and nep formation. Finally, the clothings of the
carding elements are subject to considerable wear in
operation.
The invention is accordingly based on the problem of
providing an apparatus of the kind described at the
beginning which avoids the mentioned disadvantages and

which especially is simple in terms of construction and installation, enables
individual setting of the carding intensity and makes possible a reduction in wear
on the clothings of the carding elements.
The measures according to the invention make it possible for the angle between
the clothing surface of each carding element and the cylinder clothing - the so -
called "offset angle" - to be selected individually. It is especially advantageous
that, as a result of specifically or individually orienting the clothing surfaces of
the carding elements in relation to one another, the ratio of fibre damage to nep
formation is very considerably improved. In addition, the lasting technical
improvement is achieved in especially simple manner in terms of construction. As
a result of the stationary arrangement of the carding elements there is no need
for additional devices for pivoting the carding segments. According to a further
advantage, the wear on the clothings of the carding elements is considerably
reduced as a result of the individual inclination of the carding surfaces.

The invention will be described hereinafter in greater
detail with reference to exemplary embodiments shown in the
drawings, in which:
Fig. 1 shows, in a diagrammatic side view, a
carding machine having the apparatuses
according to the invention;
Fig. 2 shows, in a side view and in section, a
fixed carding segment having two non-
movable carding elements, the carding
surfaces of which are arranged at an
angle to the cylinder clothing;
Fig. 2a shows a carding element having a
sawtooth clothing;
Fig. 3a shows three fixed carding segments
according to the invention in the
preliminary carding zone of a revolving
card top carding machine;
Fig. 3b is a top view of the fastening at both
ends of a carding segment;
Fig. 4 shows spacings between the clothings of
two carding elements and the cylinder
clothing;
Fig. 5 shows two carding elements, the carding
surfaces of which form an angle with a
respective radius of the cylinder;

Fig. 6 shows two carding elements, which are
rotatable about axes parallel to the
cylinder axis;
Fig. 7 shows two manually rotatable carding
elements together with a display device;
Fig. 8 shows two motor-rotatable carding
elements, each having a deflection
element;
Fig. 9 shows three carding segments, each
comprising two carding elements
exhibiting - seen in the direction of
rotation of the cylinder - an offset
angle, no offset angle and a counter-
offset angle;
Fig. 10 shows three carding segments, each
comprising one non-movable carding
element;
Fig. 11 shows three carding segments, each
comprising one rotatable carding
element; and
Fig. 12 is a generalised circuit diagram having
an electronic control and regulation
device together with two motor-driven
actuating members for rotation of the
carding elements, two angle-measuring
devices and a display device.

Fig. 1 shows a carding machine, for example a
Trützschler DK 903 high-performance carding machine, having
a feed roller 1, feed table 2, lickers-in 3a, 3b, 3c,
cylinder 4, doffer 5, stripper roller 6, nip rollers 7, 8,
web-guiding element 9, web funnel 10, draw-off rollers 11,
12, revolving card top 13 having card-top-deflecting
rollers 13a, 13b and card top bars 14, can 15, can
coiler 16 and fixed carding segments 17', 17' according to
the invention each having carding elements. Reference
numeral 4a denotes the direction of rotation of the
cylinder 4, reference numeral 4b denotes the clothing of
the cylinder 4, and reference numeral 4c denotes the
central axis of the cylinder 4. Reference letter G denotes
the work direction.
The carding segment 17 according to Fig. 2 consists of a
carrier 18 and two carding elements 19a, 19b, which are
arranged behind one another in the direction of rotation
(arrow 4a) of the cylinder 4, the clothings 20a, 20b
(Fig. 2a) of the carding elements 19a and 19b,
respectively, lying opposite the clothing 4b of the
cylinder 4. The carding elements 19a, 19b are stationary
and arranged in movable manner. The carding surfaces of the
sawtooth-shaped clothings 20a, 20b (see Fig. 2a) of the
carding elements 19a, 19b form an acute angle a and β,
respectively, with a respective tangent 21a and 21b,
respectively, at the clothing 4b of the cylinder 4.

In accordance with Fig. 3a, fixed carding segments 17a,
17b and 17c are arranged in the preliminary carding zone
between the licker-in 3c and the rear card-top-deflecting
roller 13a of the revolving card top 13. As Fig. 3b shows,
the carrier 18 of each carding segment 17 is fastened to
two fastening plates 27a, 27b. The fastening plates 27a,
27b are attached, by means of bolts 28a, 28b, to an
extension bend 29a and 29b, respectively (Fig. 3a shows
only the extension bend 29a on one side of the carding
machine), which are in turn fastened to the card plate 30a
and 30b, respectively, on each side of the carding machine
(only 30a is shown in Fig. 3a).
In accordance with Fig. 4, the clothing 20a of the
carding element 19a forms an acute angle a with the tangent
at the cylinder clothing 4b (cf. Fig. 2), as a result of
which the carding nip becomes narrower in the direction of
rotation 4a of the cylinder 4. The angle of inclination a
is designated the so-called "offset angle". The spacing
between the clothing 20a and the cylinder clothing 4b is
denoted by reference letter a at the entrance to the
carding nip and by reference letter b at the exit from the
carding nip, a being greater than b. The clothing 20b of
the carding element 19b forms an acute angle β with the
tangent at the cylinder clothing 4b (cf. Fig. 2), as a
result of which the carding nip opens out in the direction
of rotation 4a of the cylinder 4. The angle of inclination

β is designated the so-called "counter-offset angle". The
angles α and β may be, for example, about 1°. The spacing
between the clothing 20b and the cylinder clothing 4b is
denoted by reference letter c at the entrance to the
carding nip and by reference letter d at the exit from the
carding nip, c being less than d. The spacings b and c,
that is to say at the narrowest positions of the carding
nip, are preferably the same or substantially the same, for
example 3/1000".
As Fig. 5 shows, the carding surface 20a of the carding
element 19a forms an acute angle γ with a radius r1 of the
cylinder 4, and the carding surface 20b of the carding
element 19b forms an acute angle 8 with a radius r2 of the
cylinder 4.
In accordance with Fig. 6, the carding elements 19a, 19b
are arranged to rotate at a rotary connection about a
respective axis of rotation 22a and 22b, which is oriented
parallel to the roller axis 4c (see Fig. 1). The axes of
rotation 22a, 22b are located in a radial direction in
relation to the cylinder 4, in the middle of the respective
carding element 19a and 19b. As a result, the angles α, β
(see Fig. 2) between the clothings 20a, 20b of the carding
elements 19a, 19b and the cylinder clothing 4b are
adjustable individually (that is to say, independently of
one another) and by simple means. When there is a change in

the angles α, β, the spacings b and c (see Fig. 4)
preferably do not change. The carding elements 19a, 19b are
stationary and arranged in movable manner in the carding
segment 17a. "Stationary" means that the carding
elements 19a, 19b maintain their position as such in the
carding element 17a and also with respect to the cylinder 4
without change. "Movable" means that the carding
elements 19a, 19b are, for example, rotatable, by means of
which the described angles of inclination α, β and spacings
can be changed.
In accordance with Fig. 7, one end of a lever 23a, 23b
acts on a respective point of rotation 22a and 22b of the
carding elements 19a, 19b. At the start, the lever 23b is
in position no. 5 on the display device 24 (zero position).
Associated with the lever 23a is a further display device
(not shown). The starting position corresponds to an angle
α = 0° and β = 0°. Moving the levers 23a, 23b in the
direction of arrows E, F causes the associated carding
element 19a and 19b, respectively, to rotate about the
respective point of rotation 22a and 22b. The positions of
the levers 23a, 23b can be fixed by means of a latching
device (not shown) or the like.
In accordance with Fig. 8, adjustable drive motors 25a
and 25b, for example step motors, act on the rotary
connections 22a, 22b and set the angles of inclination α, β

of the carding elements 19a, 19b in the manner shown in
Fig. 7. At the intake into the carding elements 19a, 19b
there is arranged, upstream of the clothings 20a, 20b of
the carding elements 19a and 19b, respectively, seen in the
direction of rotation 4a of the cylinder 4, a respective
deflecting element 26a and 26b (spoiler). The deflecting
element 26a, 26b may be longer than, as long as or shorter
than the tips of the clothings 20a, 20b.
In accordance with Fig. 9, three fixed carding
segments 17a, 17b and 17c are provided opposite the
clothing 4b of the cylinder 4 (cf. Fig. 3a in that regard).
The fixed carding segments 17a to 17c each comprise two
carding elements 19a, 19b and 19c, 19d and 19e, 19f,
respectively. Seen in the direction of rotation 4a of the
cylinder 4, the carding elements 19a, 19b arranged at the
fibre intake exhibit an offset angle, the carding
elements 19c, 19d arranged in the central region exhibit no
offset angle, and the carding elements 19e, 19f arranged at
the fibre exit exhibit a counter-offset angle, by means of
which optimum carding action is brought about, together
with a considerable reduction in wear on the carding
clothings 20.
Figs. 10 and 11 show two arrangements, wherein one
carding element 19', 19' and 19'' is associated with each
of the fixed carding segments 17a, 17b and 17c,
respectively. In accordance with Fig. 10, the carding

elements 19', 19', 19'' are stationary and arranged in
non-movable manner. The carding element 19' forms a offset
angle, the carding element 19' forms no offset angle, and
the carding element 19'' forms a counter-offset angle. In
accordance with Fig. 11, the carding elements 19', 19',
19 '' are mounted so as to be rotatable about a respective
axis of rotation 22', 22' and 22''. All three carding
elements 19', 19' and 19'' form an offset angle, the
respective carding nips and angles of rotation becoming
smaller in the direction of rotation 4a of the cylinder 4.
In accordance with Fig. 12, the step motors 25a, 25b
(Fig. 8), two angle-measuring devices 32a, 32b and a
display device 33, for example a display monitor or the
like, are connected to an electronic control and regulation
device 31, for example a microcomputer machine control, by
means of which the angles of inclination α β of the carding
elements 19a, 19b can be adjusted either manually by means
of an input device (not shown) or automatically by means of
a memory (not shown).

WE CLAIM :
1. Apparatus for setting carding intensity in a carding machine,
wherein at least one stationary carding segment (17)
comprising a carrier (18) together with at least two carding
elements (19a to 19f) is associated with a roller (4), which
carding elements are arranged behind one another in the
direction of rotation (4a), of the roller, and wherein the
clothing (46) of the carding elements and the roller clothing
are located opposite one another, characterized in that the
carding surface (20a, 20b) of at least one carding element
forms an angle (∞,β) with a respective tangent (21a, 21b) at
the clothing of the roller, in that the carding elements are
arranged in stationary manner with respect to the roller, and
in that said carding segment (17) exclusive of said carding
elements, is immovable.
2. The apparatus as claimed in claim 1, wherein said roller (4)
is a carding cylinder of the carding machine.
3. The apparatus as claimed in claim 1, wherein the carding
elements (19a, 19b) are non-movable.

4. The apparatus as claimed in claim 1, wherein the carding
elements (19a to 19f) are movable.
5. The apparatus as claimed in claim 1, wherein the first and
second carding elements (19a, 19b) are arranged to be
individually movable in the carrier (18).
6. The apparatus as claimed in claim 1, wherein the carding
elements (19a to 19f) are each rotatable about an axis
parallel to the roller (4).
7. The apparatus as claimed in claim 5, wherein an adjusting
device for the rotation is provided.
8. The apparatus as claimed in claim 5, wherein each carding
element (19a-19f) is arranged to be rotatable in the carrier
(18) with two degrees of freedom.
9. The apparatus as claimed in claim 1, wherein said first and
second elements (19a, 19b) are each inclined relative to
respective tangents (21a, 21b) at the opposed roller surface
(4b), the angle of inclination (α) being substantially the
same.

10. The apparatus as claimed in claim 1, wherein said first and
second elements are each inclined to respective tangents
(21a, 21b) at the opposed roller surface (4b), the angles
(∞1,∞2) of inclination being different.
11. The apparatus as claimed in claim 9, wherein each of the
angle of inclination is acute (α,p).
12. The apparatus as claimed in claim 1, wherein said first and
second elements are each inclined relative to respective
tangents at the opposed roller surface (4b), at least one of
the elements (19a, 19b) having an angle of inclination that is
obtuse (∞,β).
13. The apparatus as claimed in claim 1, wherein an angle of
inclination (∞,β) can be changed in operation and out of
operation of the carding machine.
14. The apparatus as claimed in claim 1, wherein the angle of
inclination (∞,β) for two carding elements can be changed
simultaneously, the angular position settings of the carding
elements being coupled to one another.


15. The apparatus as claimed in claim 14, wherein when the
angles (∞,β) are changed, the transmission ratio (angular
change) of each carding element is different.
16. The apparatus as claimed in claim 14, comprising an
adjusting device (25a, 25b) for changing the angles of all
the carding elements.
17. The apparatus as claimed in claim 1, wherein the angle of
inclination (∞,β) is arranged to be changeable starting from
a tangential position of the carding surface (20a, 20b) of the
carding element (zero point).
18. The apparatus as claimed in claim 1, wherein the carding nip
becomes smaller at the first carding element and larger at
the second carding element, seen in the direction of rotation
of the cylinder.
19. The apparatus as claimed in claim 1, wherein the first and
second elements (19a, 19b) form with the roller (4) first and
second carding nips, the spacings (b,c) at the narrowest
locations of each of the first and second carding nips being
the same or substantially the same.


20. The apparatus as claimed in claim 1, wherein two or more
said carding elements are arranged to be adjusted in
stepped manner from carding segment to carding segment,
for example to be changed centrally by 0.5°.
21. The apparatus as claimed in claim 1, wherein position of the
carding elements can be detected.
22. The apparatus as claimed in claim 1, wherein at least one
device comprising said carding segment (17) is arranged in
one or more zones selected from the preliminary carding
zone between a licker-in and the rear card-top-deflecting
roller (13a, 13b) of the revolving card (13) top, the after-
carding zone between a doffer and a front card-top-
deflecting roller of the revolving card top, and an
underneath carding zone on said carding cylinder (4)
between a doffer (5) and a licker-in (3c) of said carding
machine.
23. The apparatus as claimed claim 2, comprising two or more
said carding segments. (17a, 17b, 17c).

24. The apparatus as claimed in claim 1, wherein only stationary
card top elements are associated with the cylinder of the
carding machine, a plurality of said carding segments (17a,
17b, 17c) being provided at the cylinder (4).


The invention relates to an apparatus for setting carding intensity in
a carding machine, wherein at least one stationary carding segment
(17) comprising a carrier (18) together with at least two carding
elements (19a to 19f) is associated with a roller (4), which carding
elements are arranged behind one another in the direction of rotation
(4a), of the roller, and wherein the clothing (46) of the carding
elements and the roller clothing are located opposite one another,
characterized in that the carding surface (20a, 20b) of at least one
carding element forms an angle (∞,β) with a respective tangent (21a,
21b) at the clothing of the roller, in that the carding elements are
arranged in stationary manner with respect to the roller, and in that
said carding segment (17) exclusive of said carding elements, is
immovable.

Documents:

186-KOL-2004-(13-08-2012)-FORM-27.pdf

186-KOL-2004-ABSTRACT-1.1.pdf

186-KOL-2004-ABSTRACT.1.1.pdf

186-kol-2004-abstract.pdf

186-KOL-2004-AMANDED PAGES OF SPECIFICATION.pdf

186-KOL-2004-CANCELLED PAGES.pdf

186-KOL-2004-CLAIMS-1.1.pdf

186-KOL-2004-CLAIMS.pdf

186-KOL-2004-CORRESPONDENCE 1.2.pdf

186-KOL-2004-CORRESPONDENCE-1.1.pdf

186-KOL-2004-CORRESPONDENCE.1.3.pdf

186-kol-2004-correspondence.pdf

186-kol-2004-correspondence1.3.pdf

186-KOL-2004-DESCRIPTION (COMPLETE)-1.1.pdf

186-KOL-2004-DESCRIPTION (COMPLETE).1.1.pdf

186-kol-2004-description (complete).pdf

186-KOL-2004-DRAWINGS-1.1.pdf

186-kol-2004-drawings.pdf

186-KOL-2004-EXAMINATION REPORT REPLY RECIEVED.1.1.pdf

186-kol-2004-examination report.pdf

186-KOL-2004-FORM 1-1.1.pdf

186-KOL-2004-FORM 1.1.2.pdf

186-kol-2004-form 1.pdf

186-kol-2004-form 18.pdf

186-KOL-2004-FORM 2-1.1.pdf

186-KOL-2004-FORM 2.1.2.pdf

186-kol-2004-form 2.pdf

186-kol-2004-form 26.pdf

186-kol-2004-form 3.pdf

186-kol-2004-form 5.pdf

186-KOL-2004-FORM-27.pdf

186-kol-2004-granted-abstract.pdf

186-kol-2004-granted-claims.pdf

186-kol-2004-granted-description (complete).pdf

186-kol-2004-granted-drawings.pdf

186-kol-2004-granted-form 1.pdf

186-kol-2004-granted-form 2.pdf

186-kol-2004-granted-specification.pdf

186-KOL-2004-OTHERS DOCUMENTS.1.2.pdf

186-KOL-2004-OTHERS.pdf

186-KOL-2004-PETITION UNDER RULE 137-1.1.pdf

186-KOL-2004-PETITION UNDER RULE 137.pdf

186-kol-2004-priority document.pdf

186-KOL-2004-REPLY TO EXAMINATION REPORT.pdf

186-kol-2004-reply to examination report1.1.pdf

186-kol-2004-specification.pdf

186-kol-2004-translated copy of priority document.pdf


Patent Number 248333
Indian Patent Application Number 186/KOL/2004
PG Journal Number 27/2011
Publication Date 08-Jul-2011
Grant Date 05-Jul-2011
Date of Filing 20-Apr-2004
Name of Patentee TRUTZSCHLER GMBH & CO. KG.
Applicant Address DUVENSTRASSE 82-92, D-41199 MONCHENGLADBACH
Inventors:
# Inventor's Name Inventor's Address
1 ACHIM BREUER IM MITTELFELD 22 D-52074 AACHEN
2 ALEXANDER HOHN URSULINENGASSE 4, D-41199 MONCHENGLADBACH
PCT International Classification Number D01G 15/24, 15/26
PCT International Application Number N/A
PCT International Filing date
PCT Conventions:
# PCT Application Number Date of Convention Priority Country
1 10318968.8 2003-04-26 Germany