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Патент USA US3051987

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Sept. 4, 1962
3,051,978
A. J. AUFFREY
APPARATUS FOR CONTROLLING AIR CLEANING OF ROVING FRAMES
Filed April 26, 1960
M;4/
51mg
_____—
____—
2/23
T0 MOTOR
FIG.
STARTER
a
50
INVENTOR.
ALBERT J. AUFFREY
BY
/
ATTORNEY
ice
1
3,051,978
APPARATUS FOR CONTROLLING AIR CLEANING
0F ROVING FRAMES
Albert J. Autfrey, Salisbury, N.C., assignor to Grinnell
Corporation, Providence, R.I., a corporation of Delta
ware
Filed Apr. 26, 1960, Ser. No. 24,718
6 Claims. (Cl. 15-312)
3,051,978
Patented Sept. 4, 1962
2
controls to attain continuous blower control. This con
tinuous control is important because roving frames are
as much as 45 feet long and have as many as 180 spindles
so that without proper control it is possible for the blower
to cause more damage to the setup of a stopped machine
than the original trouble which caused the machine to
stop.
It is therefore an object of my invention to provide an
arrangement whereby continuous control is maintained be
This invention relates to roving frames, and more par 10 tween a roving frame cleaner and the roving frame being
cleaned thereby in an effective and economical manner.
ticularly to apparatus for controlling an overhead clean
More explicitly it is an object of ‘my invention to pro
ing device in conjunction with a roving frame.
vide an arrangement whereby a roving frame cleaner
Recently there has been applied to the roving art var
blower, regardless of its position over the roving frame
ious means for automatically cleaning the roving frames
that it is cleaning, will be shut off the moment that the
15
While they process slivers into roving. These have de
roving frame stops operating.
veloped primarily as overhead traveling blower units
Itis a further object to provide an arrangement where
which periodically pass over the roving frame on a track
and direct streams of air on to the roving frame. This
art has advanced to the point where these cleaners are
by a roving frame cleaner blower, regardless of its posi
ever, one problem has been present and unsolved until my
is placed into operation after a shut down.
Another object is to attain the above objects without the
use of direct mechanical or electrical contacts between the
tion to the roving frame over which it is passing, may be
capable of doing a highly acceptable cleaning job. How 20 placed into operation the moment that the roving frame
invention herein disclosed.
As those skilled in the art are aware the slivers from
which the roving is processed is very delicate, usually a
soft ?uffy strand of 6%1'’ to 1" in diameter and having 25
no twist. Prior to the insertion of twist and draft to form
the roving these slivers have very little tensile strength
and are therefore susceptible to a slight force which could
cause the slivers to separate. When the roving frame is
in operation the step of drawing a sliver from its con
tainer and through the drafting rolls of the roving frame
apparently imparts more strength to the sliver than when
roving frame and the roving frame cleaner.
A reading of the following detailed description of a
preferred embodiment of my invention will make clear to
those skilled in the art other objects, when taken in con
junction with the accompanying drawing wherein:
FIGURE 1 is a perspective view showing the relation
ship between the parts comprising my invention.
FIGURE 2 is a wiring diagram of a portion of my in
vention showing the control for the cleaner blower motor.
Referring now to the drawing in greater particularity,
-1 generally indicates a portion of a roving frame showing
it is at rest. Thus it is common practice to utilize an
air blowing cleaner to deliver an air stream strong enough
to clean the roving frame while it is in operation and not 35 a number of roving spindles 2 mounted in their proper
relation to the frame. The roving frame cleaner is gen
erally depicted at 3, and is composed of an oscillating
ceiling cleaning unit 4 which is of little signi?cance to this
to cause a large number of slivers to break on an inopera
tive machine. The reason why the volume and velocity 40 disclosure and a cleaner blower 20. The ceiling cleaning
unit like the other portions of the frame cleaner is fas
of the cleaning air is not reduced to prevent the latter
tened to a frame 10 which is mounted on wheels 11 for
from occurring is that it is desirable to have as much
travel along an overhead track 12. Fastened to the frame
air as is possible and necessary delivered to an operating
is the cleaner blower unit 20 which is composed of a
roving frame to attain the highest degree of cleaning
blower motor 21 which powers in this case, ‘two centrifugal
power. Naturally, cost considerations will enter into the
decision as to what is necessary. Conversely, from the 45 fans, one shown as 22 and the other not shown. Depend
ing from the outlet of the unseen fan is a rotating nozzle
above disclosure, when the machine (roving frame) is
24 which may be seen to extend downwardly and which
not working it is desirable to have no air delivered to
effectively distributes cleaning air to the top and back of
the slack slivers and thus preclude breakage of these weak
the roving frame. Fan 22 has depending from its outlet
strands.
50 a long sleeve 25 which has spaced outlet ports (not
The operation of a modern roving frame is such that
break the slivers, but too strong for the slivers should
the frame not be in operation. It is therefore possible
occasionally a breakage of a sliver or a roving will occur.
shown) facing the roving frame to effectively distribute
them to entangle with each other, which gave the operator
Depending from the cleaning unit is a photoelectric
cleaning air to the front of the roving frame and the spin
When this happens a stop motion will be actuated and
dles 2. It is thus seen that as the cleaning unit 3 moves
cause the machine to stop. In the past, the overhead
cleaner continued to operate and when passing over a 55 along the track, driven by motor 26, cleaning air is de
livered to effectively clean all portions of the roving frame.
stopped machine would blow many slivers apart causing
cell 30 with a protective hood 31 thereover to prevent eX
traneous light from impinging on the cell. This cell at
proposals for shutting off the blower when the roving 60 the proper signal shuts off the blower motor 21 via the
electric circuit shown in FIGURE 2 which will be more
frame is off. However, these proposals have not been
completelydescribed below. Fastened to one end of the
widely accepted because they either failed to give con
a great deal of work and trouble to start the machine.
To prevent such damage from happening there have been
tinuous control of the blower or they required extensive
supplemental mechanical and/or electrical contacts and
roving frame a‘ short distance beneath the level of the
photoelectric cell is a light 40' which is connected through
3,051,978
3
4.1
a circuit shown in FIG. 1 to the motor of the roving frame.
Within the circuit is a relay 41 connected to the magnetic
starter in the roving frame motor, which is actuated when
the motor shuts off and thereby turns on the light. The
light, because of a suitable lens which can be selected by
one skilled in the art, is directed so that its extreme
bordering rays of light diverge at a desired angle to inter
sect the horizontal line of travel of the photoelectric cell
at each end of the roving frame as shown at 50' and 51.
In some existing roving frame installations the frames
are not individually driven but rather receive their motiva
tion as a group, perhaps of three or four machines. It is
obvious that to stop the motor to work on one machine
blower operation when the said light does not impinge on
said cell.
2. The combination of a plurality of roving frames each
having a motor and a circuit associated therewith, a com
5
mon traveling cleaner mounted for movement over each
of said frames and having a motor operated blower, a
light mounted on each of said frames beneath the path of
said cleaner and connected into the motor circuit of its
respective frame to ?ash on when the motor of its frame
shuts off and to turn oil? when said motor operates, a
photoelectric cell fastened to and beneath said cleaner
above the plane of the lights, each of said lights having a
lens and protective hood to send forth a controlled diverg
ing beam of light and being directed so that the outer
would also disable the remaining frames in the group thus
presenting a "very inefficient operation. To meet this 15 most rays of said beam as viewed in a substantially ver
problem, each of these frames has what is known in the
tical plane intersect the line of travel of said photoelectric
art as a “shipper motion” which makes it possible for an
cell at the ends of its respective frame, a circuit connect
operator to disconnect an individual frame from the com~
ing said photoelectric cell to the motor of said blower to
mon drive shaft. It is considered that such a frame may
shut off said blower when any portion of any of said beams
be encompassed by my invention where the signal light
of light impinges on said photoelectric cell and to turn on
circuit is connected to the shipper motion to turn on when
and maintain said blower operation when none of the said
the frame is disconnected from the drive shaft and to
beams impinges on said cell.
turn off when the frame is restored to operation.
3. A cleaner control system for a plurality of textile ma
The invention functions as follows; the cleaner unit 3
chines which are in a row and each of which has a pow
as it travels around the room on the track 12 carries with 25 ered drive and a circuit associated therewith, a common
it an ever watchful photoelectric cell which moves in a
traveling cleaner mounted for movement over each of
horizontal path depicted as a-a in the drawing. Should
a roving frame stop operating either because the operator
has chosen to do so or because the stop motion has been
said machines and having a motor operated blower, a
light source mounted over each machine, a photoelectric
cell fastened to said cleaner and spaced from a substan
actuated then the relay 41 will be actuated permitting cur 30 tially horizontal line joining the light sources, said cell
rent to flow to the light 40 and thus turn it on. The light
having a substantially horizontal path of travel over and
is directed to point over the frame with its rays directed
parallel to said row of machines, each of said light sources
in the manner previously described. Should it happen
being connected into said circuit of its respective machine
that a cleaning unit is functioning over this particular
to turn on when the motor of its machine shuts off and to
frame then the light will impinge on the photoelectric cell 35 turn off when the said motor operates, said light sources
30. This will cause a relay 34 to trip, closing the circuit
being so positioned that when lit the light emitting there
through the coil 32 and causing block switch 33 to open
from over each machine and said path of travel of said
thus disconnecting the blower motor from its power
cell will intersect over each machine, said intersection be
source. Because the light 40 is directed at the photo
ing in the form of a band over each machine, said cell
electric cell no matter where the cleaner is over the rov
and each of said light sources being oriented so that light
ing frame, it is obvious that whenever the frame stops,
from each of said sources will impinge upon said cell only
thus energizing the light, the blower motor will be imme
when said cell is in said band over the machine to which
diately shu-t otfand will remain so, as long as the cleaner
said each source is connected, said cell having a circuit
is over that particular frame. Continuing in the same
connected to said blower to shut oi'I“ said blower when light
vein it is thus seen that if the frame is not operating as
the cleaner begins to pass over the frame and the blower
is off, then, should the frame be started while the cleaner
is passing over any portion of the frame the blower will be
immediately started to continue the cleaning operation.
Thus, by the use of my invention, a complete and continu
ous control of a roving frame cleaner with respect to any
roving frame over which it is passing, is obtained.
from one of said sources impinges on said cell and to turn
on said blower when said cell is free of any light impinge
ment from. any of said light sources.
4. A combination according to claim 3 wherein said
light source is mounted adjacent one end of said each
machine and has a lens to provide a controlled diverging
beam of light over each machine extending at an angle
less than 90° to said line, said intersection band extend
It is to be understood that this invention is not to be
ing from one side of said diverging beam to the opposite
limited by the illustrated embodiment but only by the 55 side of said beam and corresponding substantially to the
end to end length of said machine.
scope of the appended claims.
I claim:
1. The combination comprising a roving frame having
5. A cleaner control system for a plurality of textile
machines which are in a row and each of which has a
motor and a circuit associated therewith, a common
a motor, a circuit associated therewith, a traveling cleaner
mounted for movement over said frame at intermittent 60 traveling cleaner mounted for movement over each of
said machines and having a motor operated blower, a
intervals and having a motor operated blower, a light
light source mounted over each machine, a photo~
fastened to one end of said frame and connected within
electric cell fastened to and beneath said cleaner above a
said circuit to ?ash on when said motor is shut off and to
substantially horizontal plane containing the light
turn off when said motor operates, a photoelectric cell
sources, said cell having a susbtantially horizontal path
fastened to and depending from said cleaner to a level 65 of travel over and parallel to said row of machines, each
slightly above the level of the light, said light having a lens
of said light sources being connected into the motor cir
and protective hood to send forth a controlled diverging
cuit of its respective machine to turn on when the mo
beam of light and being directed so that the outermost
tor of its machine shuts olf and to turn off when the said
motor operates, said light sources being so positioned that
rays of said beam as viewed in a substantially vertical
plane intersect the line of travel of said photoelectric cell 70 when lit the light emitting therefrom over each machine
and said path of travel of said cell will intersect over
at the ends of said frame, a circuit connecting said photo
each machine, said intersection being in the form of a
electric cell to the motor of said blower to shut off said
band over each machine, said cell and each of said light
blower when any portion of said beam of light impinges
on said photoelectric cell and to turn on and maintain said 75 sources being oriented so that light from each of said
sources will impinge upon said cell only when said cell
3,051,978
is in said band over ‘the machine to which said each
source is connected, said cell having a circuit connected
to said blower to shut said blower off when light from one
of said sources impinges on said cell and to turn said
blower on when said cell is free of any light impingement
from any of said light sources.
6. The combination according to claim 5 wherein said
light source is ‘directed upwardly of said susbtantially
horizontal plane and mounted at one end of said each
machine and has a hood and lens to provide a controlled 10
diverging beam of light over each machine extending up
wardly at an angle substantially less than 90° to said
plane, said intersection band extending from one side of
said diverging beam to the opposite side of said beam,
and corresponding to the end to end length of said ma
chine.
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,184,880
2,613,611
2,708,715
Hodge ______________ __ Dec. 26, 1939
Simon ______________ __ Oct. 14, 1952
Meyers ______________ __ May 17, 1955
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