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Патент USA US2107378

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Feb. 8, 1938.
2,107,378
E. KATO
FINE SPINNING FRAME
Filed Aug. 19, 1936
ElapAed, Time qflér Dqffmj
INVENTOR:
Z. K7210
W
A TTORNEY5
Patented Feb. 8, 1938
2,107,378; _
UNITED STATES PATENT OFFICE
2,107,378
FINE SPINNING FRAME
v
Etsuro Kato, Meguro-ku, Tokyo-shi, Japan
Application August 19, 1936, Serial No. 96,884
In Japan October 25, 1935
1 Claim. (Cl. 118—15)
This invention relates to certain‘ improvements
in ?ne spinning frame of the type in which a sliver
moves vertically in the direction of the axis of
a spindle disposed in a vertical position.‘
5
One object of the invention is to provide a
simple and compact spinning frame.
Another object of the invention is to make the
variation of tension of winding yarn due to bal
looning independent of the elapsed time after the
10 do?ing of cop.
In the accompanying drawing:
Fig. 1 is a side view of a ?ne spinning frame em
bodying the invention.
'
.
Fig. 2 is a front view of the spinning frame
15 partly broken away.
Fig. 3 is a diagram of operating characteristic
curve illustrating the relation of revolving speed
of spindle and elapsed time after do?ing of cop
in ?ne spinning frame embodying the invention.
Referring to Figs. 1 and 2, I represents a gear
20
‘case, 6 a poker arm which is movably mounted
on a shaft 1. One end of said poker arm is oper
atively connected with a cam (not shown) in the
gear case I by means of a connecting link 2. A
lever 5 is securely or integrally connected with
the poker arm 4 so as to be rocked when the
poker arm 4 is rocked. Another poker arm 4'
is arranged to be moved at the same period as
that of the motion of the poker arm 4 by the rock
30 ing arm 5 through means of a connecting link 6
and a lever 5'. The poker arm 4 and a number of
the other poker arms 4' are arranged in a line
nearly below the center line of the machine frame
ll) supporting the driving electric motors 9 indi
- vidual to the spindle s 8.
Each of the poker arms 4
and 4' is provided 0n its free end with a roller 13
adapted to engage with the lower end of a vertical
rod. M which exten ds through the beams of the
machine frame ill. The vertical rod I4 is guided
by the roller stand l1 and a lower tie beam l8
of the machine frame l0, through which said rod
extends. To the vertical rods M are secured the
beams l5 for carrying ring rails l2, l2’ and an
other beam I6 for carrying guide rails II, II’,
' and consequently said vertical rods land these
ring rails and guide rails will be moved as one
unit when the poker arms 4 and 4’ are moved.
From the foregoing, it will be seen that the
arrangements are considerably simpli?ed. Fur
ther, it is apparent that the guide rail H and
the ring rail I! are moved with a ?xed distance
between them, any relative motion not being
made, and that the sliver is moved vertically in
the direction of the axis of the spindle disposed
in vertical position, and consequently yarn will be
drafted in a vertical direction in the sliver and
guide, so that a constant tension of yarn may be
ensured irrespective of the motion of the guide
moved with the ring rail. The fact that there
is no» relative motion between the guide rail ll
and ring rail I 2 upon their movement will re
5
sult that variation of the tension of yarn due to
ballooning is independent of the elapsed time
after do?ing of the cop.
In ?ne spinning frames heretofore in use, the 10
guide and spindle are positioned in a?xed relation,
and the cop building is effected by up-and-down
motion of the ring rail, and accordingly in the be
ginning of the cop building and distance between '
the guide and traveller is larger and the balloon- 15
ing will increase, whereby yarn will be caused
to more frequently be broken, as yarn is more
frequently caused to fo-ul the separator and other
parts due to increase in the tension of the 'yarn.
In order to avoid this disadvantage, the revolving 20
speed of the spindle must be lowered. On the con
trary, toward the end'of the cop building the dis
tance between the guide and traveller is smaller
and the size of the balloon will decrease, so that
yarn is likely to be broken by a small shock, and 25
accordingly the revolving speed must also be
lowered to avoid the said disadvantage. With
?ne spinning frames heretofore in use, therefore
the .number of revolutions per minute of the
spindle should be related to the elapsed time after 30
the do?ing of the cop so that the control of oper
ation of the spindles becomes more troublesome
and the arrangement becomes more complicated.
With the ?ne spinning frame embodying the in
vention, the guide and ring rail are related so 35
as to be moved keeping a ?xed distance between
them, whereby the disadvantage of lowering re
volving speed of spindle as mentioned above will
be avoided, and the variation of tension of yarn
due to ballooning is regular from the beginning 40
to the end of winding of cop and independent of
elapsed time after the do?ing of cop as illustrated
by a diagram in Fig. 3.
As Seen' from the foregoing description, with
the arrangement according to the invention, the 45
drafting tension of yarn is constant irrespective‘
of up-and-down motion of the guide moving with
the ring rail, as the direction of drafting yarn in
sliver and guide is vertical due to sliver being
vmoved vertically in the direction of the axis of 50
spindle disposed in vertical position, and the con
trol of the operation of r‘ the spindle is facilitated,
as the ring rail and guide rail are movedrin a
?xed relation keeping a ?xed distance between
them to make uniform the tension of the yarn 65
2,107,378
.12due to ballooning and to give the spindle an opera
tained the nature of my said invention and in
tion control characteristic as illustrated in “Fig.
3, independently of the elapsed time after do?ing
of cop. Further, the arrangement for trans
mitting up-and-down motion of the ring rail and
guide rail is extremely simpli?ed, as the ring rail
and guide rail are securely mounted on the ver-_
tical rod which is moved up and down for cop
' building. Still further the size of the spinning
10 frame may be made smaller, as the space between
two sides of the machine frame may be decreased
due to the vertical rod being disposed in an inter‘
mediate position between the spindles arranged
on two sides oft-he machine frame, an /a’smooth
what manner the same is tov be performed, I
claim:
/
i
’
A ?ne spinning frame comprising, in combina
tion, a frame, two parallel rows of vertical spindles
arranged on opposite sides of the frame, two
parallel ‘rows of drafting apparatus arranged
on opposite sides of the frame ,and comprising
parallel rows of vertically arranged drafting rol
lers to draft slivers vertically in substantial c0 10'
axial relation to said spindles, vertically slideable
rods mounted in the frame and disposed inter
mediate the rows of spindles, ring rails and guide
rails secured in spaced apart relation on said
vertical rods, actuating means operably connected
15 operation of the vertical rod may be n'sured due . to said rods for simultaneously moving said rods
' to the guiding function provided by the tie beam vertically, and individual motor driving means
' forming part of the‘machine frame through which
the vertical rod extends.
Having now particularly described and ascer
for‘ each of the spindles.
-
i
ETSURQ KATO.
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