U.S. patent application number 10/899516 was filed with the patent office on 2005-02-03 for device for cabling and continuous fixing of wires followed by complementary heat treatment.
This patent application is currently assigned to RIETER TEXTILE MACHINERY FRANCE. Invention is credited to Antouly, Philippe.
Application Number | 20050022495 10/899516 |
Document ID | / |
Family ID | 27619902 |
Filed Date | 2005-02-03 |
United States Patent
Application |
20050022495 |
Kind Code |
A1 |
Antouly, Philippe |
February 3, 2005 |
Device for cabling and continuous fixing of wires followed by
complementary heat treatment
Abstract
The device comprises: a two-for-one twisting spindle supporting
a thread winding which is twisted or cabled via a second thread; a
mechanism for pulling the thread in order to cancel the tension
resulting from the twisting or cabling operation; a heater for
heating the thread followed by a cooling area; and a mechanism for
coiling the thread. Upstream from the heater, thread is subject to
the action of at least one colorant.
Inventors: |
Antouly, Philippe; (Charmes
Sur Rhone, FR) |
Correspondence
Address: |
HESLIN ROTHENBERG FARLEY & MESITI PC
5 COLUMBIA CIRCLE
ALBANY
NY
12203
US
|
Assignee: |
RIETER TEXTILE MACHINERY
FRANCE
Valence Cedex
FR
|
Family ID: |
27619902 |
Appl. No.: |
10/899516 |
Filed: |
July 26, 2004 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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10899516 |
Jul 26, 2004 |
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PCT/FR03/00218 |
Jan 23, 2003 |
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Current U.S.
Class: |
57/282 |
Current CPC
Class: |
D02G 3/285 20130101;
D01H 13/306 20130101; D01H 13/28 20130101 |
Class at
Publication: |
057/282 |
International
Class: |
D02G 003/02 |
Foreign Application Data
Date |
Code |
Application Number |
Jan 31, 2002 |
FR |
02.01358 |
Claims
1. A device for the continuous cabling and setting of threads
followed by an additional heat treatment, comprising: a double
twist or cabling spindle supporting a first thread, said first
thread being twisted or cabled together with a second thread to
form a twisted or cabled thread; means for take-up of a thread in
order to cancel out tension resulting from a twisting or cabling
operation; thread heating means followed by a cooling zone; means
for winding up the twisted or cabled thread; and upstream of the
heating means, means subjecting the twisted or cabled thread to
action of at least one dye.
2. The device as claimed in claim 1, wherein the heating means
comprises at least one cylindrical godet associated with a return
guide or roller for allowing an easing of the thread, said godet
being brought to a defined temperature and being driven positively
in rotation.
3. The device as claimed in claim 2, wherein the cooling zone
comprises an assembly of at least one cylindrical godet and return
guide or roller ensuring the easing of the thread, said assembly
being located between the heating godet and the winding-up
means.
4. The device as claimed in claim 1, wherein the heating means
comprises an oven.
5. The device as claimed in claim 3, wherein at least one godet and
return guide or roller have spaced slots formed parallel to their
axis of rotation.
6. The device as claimed in claim 5, wherein a bottom of the slots
is rounded so as to form grooves.
7. The device as claimed in claim 6, wherein the grooves are
distributed uniformly or not on a circumference of the at least one
godet and of the return guide or roller.
8. The device as claimed in claim 6, wherein a bottom of the
grooves delimits a diameter of same value or not.
Description
[0001] The invention relates to a device making it possible to
carry out continuously the cabling and setting of continuous
threads.
[0002] Such devices are used, for example, by machines making it
possible to produce threads for carpets.
[0003] The prior art may be illustrated, as an in no way limiting
indication, by the teaching of patents FR 1 455 499 and U.S. Pat.
No. 3,525,205. It may be gathered from these documents that such
machines comprise a central stand supporting a plurality of
identical work stations consisting, as seen in the direction of
passage of the thread, of a single or double twist spindle
supporting a package of said thread, of means for the take-up of
the thread, of a heat treatment oven followed by a cooling zone,
and, finally, of means for winding up the treated thread. The heat
treatment oven is arranged vertically (patent FR 1 455 499) or
horizontally (patent U.S. Pat. No. 3,525,205). The thread is
maintained in the relaxed state during heat treatment and during
the cooling phase before winding.
[0004] The teaching of the patent FR 2 414 568 may also be
mentioned, which discloses a machine, in which each work station
comprises a double twist spindle followed by a heat treatment oven
arranged between two take-up systems followed by winding-up means.
Such a machine is used to carry out the drawing of a partially
drawn thread by means of the double twist spindle which rotates at
a speed such that the tension imparted to the thread in the balloon
which it forms at the exit of said spindle brings about the drawing
of the thread.
[0005] Machines similar to those described above for carrying out
this direct cabling operation are also known. In this case, the
thread coming from the package mounted on the single and/or double
twist spindle is combined with a second thread coming from a second
reel mounted fixedly on the stand of the machine. This second
thread is delivered through the shank of the corresponding spindle
to a cabling head arranged in the extension of the latter. An
advantageous exemplary embodiment of this type of machine makes it
possible to carry out both a twisting operation and a cabling
operation, as may be gathered from the teaching of the patent FR 2
732 043, of which the present applicant is also the proprietor.
[0006] According to the teaching of this patent, the machine
comprises a central stand supporting a plurality of identical work
stations, each comprising:
[0007] a double twist or cabling spindle supporting a thread
package, said thread being intended to be twisted or cabled
together with a second thread;
[0008] means for the take-up of the thread, making it possible to
cancel out the tension resulting from the twisting or cabling
operation;
[0009] thread heating means followed by a cooling zone;
[0010] means for winding up the treated thread;
[0011] the heating means consist of a linear oven arranged
vertically or substantially vertically;
[0012] the thread executes an outgoing and return travel within the
oven into which the end of said thread is introduced in its lower
part, while a system for the take-up and return for said thread is
provided in the upper part;
[0013] means are provided for maintaining the thread under minimum
tension during the cooling phase and in order to deliver it to the
winding-up means.
[0014] These arrangements make it possible not only to double the
duration of the heat treatment for an oven of given length, but
also to control perfectly the tensions imparted to the thread
during the heat treatment and cooling phases.
[0015] This latter solution affords important advantages, as
compared with the prior art, but nevertheless cannot be considered
as entirely satisfactory.
[0016] To be precise, in view of the treatment which the thread
must undergo, the oven has to be brought to a relatively high
temperature of the order of 210.degree. C. and must have large
dimensions. For example, the length or height of the oven may
amount to 4.50 meters. It is necessary, moreover, to provide
substantial means for ensuring the cooling of the thread in the
relaxed state. For example, such means may consist of a relaxation
cloth arranged horizontally underneath the oven. This cloth may
either be individual for each work station or be common to all the
stations and in that case extend over the entire length of the
machine.
[0017] Proceeding from this prior art, the problem which the
invention proposes to solve is to produce a bulk-tinted and set
thread continuously.
[0018] In order to solve such a problem, a thread cabling and/or
double twist device has been designed and refined, of the type
comprising in a known way:
[0019] a double twist or cabling spindle supporting a thread
package, said thread being intended to be twisted or cabled
together with a second thread;
[0020] means for the take-up of the thread in order to cancel the
tension resulting from the twisting or cabling operation;
[0021] thread heating means followed by a cooling zone;
[0022] means for winding up the thread.
[0023] According to the invention, and in light of the set problem
to be solved, the device comprises, upstream of the heating means,
means capable of subjecting the thread to the action of at least
one dye.
[0024] The invention is explained in more detail below with the aid
of the figures of the accompanying drawing in which:
[0025] FIG. 1 is a diagrammatic view showing the principle of the
device according to the invention for carrying out the continuous
cabling and setting of thread and its coloration;
[0026] FIG. 2 is a perspective view of an advantageous embodiment
of the heating and cooling means;
[0027] FIG. 3 is, on a larger scale, a cross-sectional view taken
along the line 3-3 of FIG. 2.
[0028] As shown in FIG. 1, the device comprises, in a known way, a
double twist or cabling spindle (1) making it possible to carry out
either twisting or a direct cabling operation. The spindle, driven
by an individual motor or any known appropriate means, receives a
reel (2) of a first thread to be treated (3), called the "can
thread". To carry out the direct cabling operation, the spindle (1)
has a hollow shank for delivering a second thread (4), called the
"creel thread" coming from a reel (5). Thus, in a known way, the
creel thread (4) is delivered through the hollow shank of the
spindle so as to be combined with the can thread (3) in the region
of a cabling head (6).
[0029] The cabling head (6) is of any known and suitable type. At
its exit, the threads (3) and (4) are assembled by means of the
conventional direct cabling method. It should be noted that the
cabling head (6) may be combined with take-up means making it
possible to cancel out the tension resulting from the cabling or
from the twist. For example, as taught by the abovementioned French
patent FR 2 732 043, the take-up means may be composed essentially
of an assembly of the type comprising a capstan and a press roll.
The combination with a grooved roll makes it possible to obtain an
easing of the cabled thread. This results in a very high accuracy
in the take-up speed of the threads and also in a cancelation of
the tension resulting from the twisting or cabling operation.
[0030] The means for the heat treatment of the cabled thread (3-4)
consist of at least one cylindrical godet (7) associated with a
return guide (8) for allowing an easing of the threads. The godet
(7) is brought to a defined temperature and is driven positively in
rotation.
[0031] At the exit of the heating means (7) and (8), the treatment
device has a cooling zone likewise consisting of the combination of
a cylindrical godet (9) and of a return guide (10). At the exit of
the cooling zone (9) and (10), the thread is wound onto a reception
means in the form of a reel (11).
[0032] As mentioned, the godet (7) is associated with heating means
making it possible to maintain it at a predetermined temperature.
For example, these heating means are of the induction type, making
it possible to maintain the godet within a predetermined
temperature range, for example between approximately 90.degree. C.
and 240.degree. C. The godet (7) is driven in rotation by any known
and suitable means. The return roller (8) is mounted rotatably.
[0033] In an important way, the godet (7) and the guide roller (8)
have spaced slots (7a) and (8a) formed parallel to their axis of
rotation.
[0034] These arrangements make it possible to increase and improve
the bulking effect of the cabled threads (3-4).
[0035] In the same way, the godet (9) and the return roller (10)
have spaced slots (9a) and (10a ) formed parallel to their axis of
rotation. It should be noted that the godet (9) relating to the
cooling zone may be brought to a temperature of between
approximately 55.degree. C. and 130.degree. C.
[0036] The various slots of the godets (7) and (9) and of the
return rollers (8) and (10) are rounded so as to form grooves. As
regards the slots, various embodiments may be provided, for example
in terms of their dimensioning. The slots may be of the same depth
or not. Advantageously, the slots are distributed uniformly on the
circumference of the godet and of the return roller, without
thereby ruling out an unequal distribution. Finally, these slots
are parallel to one another or not.
[0037] The various solutions applied with regard to the godets (7)
and (9) may be considered with regard to the return rollers (8) and
(10).
[0038] Without thereby departing from the scope of the invention,
the use of heating and cooling means other than those of the types
described in patent FR 2 732 043 is not excluded.
[0039] Upstream of the heating means (7) and (8), at the exit of
the cabling assembly (6), the threads (3) and (4) are subject to
the action of a roller (12) or other means capable of applying a
dye (13) to the threads (3-4).
[0040] These arrangements allow the continuous production of a
cabled, bulk-tinted and set thread.
* * * * *