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Патент USA US3069739

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Dec. 25, 1962
TSUTOMU ITO
3,069,729
APRON-BAND SLIVER COILER
Filed 061'.- 19, 1959
4 Sheets-Sheet l
III/A
Fktana [to
I I/WE/VTOR
Dec. 25, 1962
TSUTOMU ITO
3,069,729
APRON-BAND SLIVER COILER
Filed Oct. 19, 1959
4 Sheets-Sheet 5
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Dec. 25, 1962
TSUTOMU ITO
3,069,729
APRON-BAND SLIVER COILER
Filed Oct. 19, 1959
4 Sheets-Sheet 4
Eatomz [5°
BY
[AWE/V7079.
KM 7P, A?!”
AGE/V7
United States Patent Uh?ce
3,969,729
Patented Dec. 25, 1952
2
3,069,729
Tsntomu Ito, Naka-ku, Nagoya-shi, Japan, assignor to
APRON-BAND SLIVER (JOILER
Howa Kogyo Kabushiki-Kaisha (known as Howe
Machinery, Ltd.) Aichi-lren, Japan, a limited-liability
company of Japan
Filed Oct. 19, 1959, Ser. No. 847,267
Claims priority, application Japan Oct. 21, 1953
9 Claims. (Cl. 19-159)
The present invention relates to an improved apron~
band sliver coiler of the type disclosed in my abandoned
t is another object of the present invention to provide
a mechanism wherein its operational objects are attained
in a single mechanical unit without the use of a com~
bination of separate parts such as an assemblage of in
dependent calender rolls and tube gear as described above.
Said objects and other objects and advantages of the
present invention have been attained by the mechanism
of the present invention, the details of which will be more
clearly apparent by reference to the following detailed de
10 scription of a few representative embodiments of the in
vention when taken in connection with the accompany
ing illustrations, in which the same parts are indicated by
application Ser. No. 733,360 ?led May 6, 1958, of which
same numerals, and in which:
this application is a continuation-in-part.
FIG. 1 is a side-elevational view, with certain portions
In spinning proceses, the vessel which contains the 15 broken away, of a representative arrangement of rolls
collected ?bers, called “sliver,” is termed a “can.” In
of the present invention;
general practice, the sliver is packed into said can in
FIG. 2 is a perspective view of the mechanism as
such a manner that said sliver is coiled along the inner
shown in FIG. 1;
surface of said can. In general practice, moreover, a
FIGS. 3, 5, and 7 are side elevational views, with parts
mechanism called the “coiler gear” is used for depositing
broken away, of the mechanism of the present invention
said sliver in a helicoidal manner.
with various examples of power transmission;
This coiler gear contains a tube extending from the
FIGS. 4, 6, and 8 are plan views corresponding, re
center of the gear at the top to an eccentrically disposed
spectively, to FIGS. 3. 5, and 7.
hole on the bottom of the gear, whereby the sliver fed
In the embodiments of the present invention, the mech
into the top of said gear passes through the tube and is 25 anism comprises, in combination, means for transmitting
discharged from said hole.
to the calender rolls the motion resulting from the rota
One trouble which occurs frequently with this type of
tion induced in a pinion, which is meshed with a station
mechanism is the choking of the sliver in said tube. The
ary gear, by the rotation of a ring gear, and a power trans
causes which increase the possibility of the occurrence
mission mechanism for driving upper and lower aprons
of said trouble are: the accumulation of water droplets 30 which move with a predetermined kinematic relation to
on the inner surface of said tube; the handling of bulky
each other and to the aforesaid motions.
sliver; the handling of sliver which is easily charged
Referring to FIG. 1, rotation is transmitted from a ver
with static electricity; etc.
tical shaft ll, through a gear 2. ?xed at the end of said shaft
In order to eliminate the above-mentioned trouble com
1, to the teeth 3 of a ring gear 33. On one hand, a pinion
pletely and yet obtain the same coiling effect, moveable
gear 5 is provided to mesh with an internal. gear 4 which
apron bands may be so disposed, in place of the afore
is disposed co-axially with said gear 33 but does not ro
said tube, as to hold the sliver between the aprons which
tate, the shaft of said pinion gear being supported by the
travel at the velocity of movement of the sliver. In the
coiler-gear body. Accordingly, the rotation of the pin
application of this method, the upper apron is concavely
ion gear 5 is induced by the internal gear 4 when the
curved and the lower apron assumes the convex curva 40 coiler gear 3 rotates and is transmitted to one calender
ture of the driving roll thereof. Although these upper and
roll 10 through bevel gears 6 and '7 to cause said roll to
lOwer aprons have different con?gurations, they must
move at exactly the same velocity in their respective hori
zontal portions because they are touching each other at
rotate.
said portions.
in and ill are so constructed that relative movement can
Simultaneously, driving power is transmitted
through gears 3 and 9 to drive another calender roll 11.
Furtermore, the bearing assemblies of the calender rolls
take place between their bearings and their respective
Of course, since the aprons have suitable thicknesses,
it is impossible to develop a high pressure between the
supports so as to make it possible to vary the distance
roll driving the upper apron and that driving the lower
between the rolls. Furthermore, the calender roll 11 is
apron without damagin0 the aprons. Consequently, with
pressed against the calender roll in by springs bearing on
50
the roll 11.
the conventional mechanism, the sliver which is led be
tween these two driving rolls is clamped between the
In the present invention, in addition to the above
aprons and delivered through the discharge hole without
described mechanism of general nature, there is provided
being suf?ciently compressed, and the ability of the mech
a pair of aprons 112 and 13 which promptly intercept the
anism to condense the sliver is relatively little.
sliver passed through the calender rolls ill and ii, convey
In the case of the generally-used, conventional coiler
the same in an approximately horizontal path, and carry
gear, a pair of calender rolls, which squeeze at a high
the same to the position where the sliver is delivered from
pressure, are arranged above the apron-band assembly,
the hole 18. That is, the mechanism is such that both of
and the sliver is first amply squeezed by the high pressure
these aprons l2 and 13 move at exactly the same velocity,
of said calender rolls, then delivered to the discharge tube. 60 and, at the same time, said velocity is very slightly higher
Accordingly, the degree of condensation of the sliver
than that of the sliver delivered by the calender rolls ill
in an apron band system may be less than that otherwise
and ill (i.e. than the peripheral speed of the rolls ill and
provided. Consequently, the use of an apron band system
ill). A funnel 8d feeds the sliver between the rolls.
in this manner entails a considerable, disadvantageous
Such a mechanism may be constructed according to
reduction in the total weight of sliver which can be con—
various kinds of mechanical arrangements. One example
tained in a can of given value.
is shown in FIGS. 3 and 4, wherein a sprocket wheel 22
It is an essential object of this invention to provide a
is ?xed to the shaft of the calender roll iii; a sprocket
mechanism which is capable of compressing the sliver
wheel 22 ?xed to the roller 14 drives the lower apron
by means of calender rolls and then conveying the same
12 while another sprocket wheel 21 ?xed to the shaft of
by means of apron bands to the position of the coiler
the roller 15 drives the upper apron 713 via a chain 23
gear hole, yet does not entail the above mentioned dis
stretched over said sprocket wheels, whereby the rotation
advantages.
of the calender roll 10 rotates with a certain, ?xed rela
3,059,729
Mi
2. An assembly according to claim 1 wherein said
tion to the motions of the aprons l2 and 13. Of course,
tension rollers 16 and it’? apply tension on the lower apron
l2 and upper apron 13, respectively, so as to prevent
calender rolls are disposed along the axis of rotation of
s id support, said apron-band means comprising an end
less band disposed ‘below said calender rolls, said band
being adapted to take up sliver passed between said rolls
slippage between said aprons and their respective driving
rollers 14 and 15'.
FIGS. 5 and 6 illustrate another driving system. in
this mechanical arrangement, the driving power from the
and to convey the sliver to a discharge location oiiset
from said axis.
3. An assembly according to claim 2 wherein said
support is provided with a port at said discharge location,
aid band being disposed above said port, said apron
pinion gear 5 is transmitted directly to the calender roll
11, and support structure of the roll ill is such that springs
act on the hearings. in this case, a gear 25 is ?xed to the
shaft of the calender roll 11; a gear 28 is ?xed to the
shaft of the roller 14 which drives the lower aprons; a
gear 29 is ?xed to the shaft of the rolls 15 which drives
band men s further comprising a second endless band
bearing upon the ?rst-mentioned endless band and adapted
to drop sliver conveyed upon said ?rst-mentioned band
the upper apron; and, as shown in the drawings, idler
through said port.
gears 26 and 237 are installed the-rebetween. By this
mechanical arrangement, exactly the same eii'ect as that
4. An assembly according to claim 3 wherein said
endless bands are each provided with a respective drive
attainable by the previously-described chain-drive ar~
rangement is achieved.
In yet another mechanism illustrated in FIGS. 7 and 8,
the driving power from the pinion gear 5 is transmitted 20
to a counter shaft 30, from which it is transmitted through
roller and, spaced from it, a respective idler roller both
journaled on said support, one roller of said ?rst endless
band and one roller of said second endless bandgbeing
disposed directly below said calender rolls.
5. An assembly according to claim 4 wherein said
transmission means couples at least one of said drive
rollers with said one calender roll.
a gear 31 to a pinion 32 ?xed to the shaft of the calender
roll ill. The driving power is further transmitted, as
previously described, through the gears 8i and 9‘ to rotate
the calender roll 11. Through a similar gear train, it is
possible to transmit the driving power to the driving roller
37 of the lower apron and, through gears, to the driving
roller 36 of the upper apron. The driving rollers 36 and
6. An assembly according to claim 1 wherein said
drive means comprises a pinion gear journaled to said
support, a stationary internal gear meshing with said
pinion gear, and ?rst gear means operatively connecting
at least one of said calender rolls to said pinion gear.
7. An assembly according to claim 1, further compris
37 are, respectively, provided with the tension rollers 35
and 34 which are used to induce suitable tensions of the 30 ing means for resiliently urging said calender rolls
against each other.
upper apron l3 and lower apron 12.
8. An assembly for coiling sliver, comprising a sup
The objects of this invention may be attained by any
port rotatable about a substantially vertical axis and
adapted to ‘be disposed above the mouth of an upwardly
of the above-described constructions wherein the common
feature is in providing a mechanism which is so con
structed as to rotate the calender rolls, the rotation of
said mechanism being induced by the rotation of a coiler
0 t)
gear through a stationary gear disposed concentrically
therewith, in the central part of said coiler gear; a set of
upper and lower aprons below said mechanism for guiding
the sliver horizontally; and a suitable gear train for mov
ing said aprons with a ?xed velocity relation with respect
to the rotational velocity of said calender rolls.
While I have described the particular embodiments of
my invention, it will, of course, be understood that I do
not wish this invention to be limited thereto, since many or Qt
modi?cations may be made and I therefore, contemplate
by the appended claims to cover all such modi?cations as
fall within the true spirit and scope of my invention.
What I claim is:
1. An assembly for coiling sliver, comprising a rotat~ "
able support adapted to be disposed above the mouth of
an upwardly open can, means for rotating said support
relatively to said can, a pair of juxtaposed calender rolls
journaled to said support for rotation in mutually oppo
site senses, means for introducing sliver between said
rolls, apron-band means juxtaposed with at least one of
said rolls and mounted on said support for receiving sliver
passed between said rolls and dispensing said sliver into
said can, transmission means interconnecting said apron
band means and ‘at least one of said rolls for operating (it
same with a predetermined peripheral-speed relationship,
and drive means for rotating said one calender roll and
said apron-band means, said transmission means includ
ing a ?rst toothed wheel on said support secured to and
rotatable with said one of said rolls, a second toothed
open can, main drive means for rotating said support
relatively to said can, a pair of juxtaposed calender rolls
journaled to said support for rotation about respective
substantially horizontal axes in mutually opposite senses,
said calender rolls being disposed in the vicinity of said
ertical axis for introducing sliver between ‘said rolls,
apron-band means juxtaposed with at least one of said
rolls and mounted on said support for receiving sliver
passed between said rolls and conveying said sliver to a
discharge location offset from said vertical axis, trans
mission means interconnecting said apron-band means
and at least one of said rolls for operating same with a
predetermined peripheral-speed relationship and means
including said main drive means for rotating said one
calender roll, said transmission means including a ?rst
toothed wheel on said support secured to and rotatable
with said one of said rolls, a second toothed wheel on
said support operatively coupled with said apron-band
means, and a coupling member on said support positively
engaging said ?rst and second toothed wheels ‘for trans
mitting rotation from said one of said rolls to said apron
band means.
9. An assembly according to claim 8, further compris
ing funnel means for said sliver juxtaposed with the
'eripheries of both said rolls in the vicinity of their line
of closest approach, said funnel means opening down
wardly toward the gap between said rolls.
References Cited in the ?le of this patent
UNITED STATES PATENTS
wheel on said support operatively coupled with said
2,719,338
Carmichael ___
apron~band means, and a coupling member on said sup
2,780,841
Berker ______________ __ Feb. 12, 1957
10,117
Great Britain ________________ __ 1844
port positively engaging said ?rst and second toothed
Wheels for transmitting rotation from said one of said
70
rolls to said apron-band means.
_____ __ ‘Oct. 4, 1955
FOREIGN PATENTS
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