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Патент USA US3084410

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April 9, 1963
c. SCHLEIFER
3,084,400
DUST REMOVING DEVICE FOR COMBING FRAMES
Filed Aug.- 50, 1960
2 Sheets-Sheet 1
April 9, 1963
c. SCHLEIFER
3,084,490
DUST REMOVING DEVICE FOR COMBING FRAMES
Filed Aug. 50, 1960
2 Sheets-Sheet 2
INVENTOR
CARLO SHHLEIFER
m
ATTORNEY
tinned States
rice
3,084,400
Patented Apr. 9, 1963
1.
2
3,084,400
impurities collected by the actual brush are removed
from the latter by the collecting cylinder 5. The
numeral 8 designates a comb rocking around a stem
9, which serves for ‘urging away from the periphery
DUST REMOVING DEVICE FOR COMBlNG
FRAMES
Carlo Schleifer, Milan, Italy, assignor to Sant’ Andrea
of the collecting drum or cylinder 5, the sheet of re
covered noil ?bres which are thereafter collected in
a suitable container, not illustrated.
Filed Aug. 30, 1960, Ser. No. 52,972
In proximity with the area of contact, between the
Claims priority, application Italy Sept. 4, 1959
brush
2 and the cylinder 5, there is provided a suction
6 Claims. (Cl. 19-418)
10 head 10' communicating with a suction device 11. To
the front of said head there is arranged a separating
My invention has for its object an arrangement for
INglt'ara Gi?cine Meccaniche e Fonderie S.p.A., Novara,
t y
sucking the dust and separating the noil oif the circular
comb of rectilinear combing frames of the high speed type
provided with a large rotary brush and a noil collecting
cylinder.
It is a well-known fact that in rectilinear frames for
combing long ?bres, the part collecting the impurities
off the circular combing device, projects centri?gually
screen which is given substantially the shape of a rake,
including rectilinear teeth 12a located at suitably selected
intervals in a manner to allow the dust to pass while
15 holding back the ?bres to be recovered. Said teeth are
rigid with a carrier spindle 12b, said spindle 12b being
rigid with at least one arm 13, to the outer end 14 of
which is secured pivotally another arm 15 carried by
an eccentric member 16 rotating in unison with the
of the impurities thus ‘collected. The circular combing
device consists of a rotary brush. This occurs more par 20 gear 17 around the spindle 18. The gear 17 meshes
with another gear 19 keyed to a shaft 20 to which is
ticularly at high combing speeds. In such cases this leads
also keyed 'a pulley 21 actuated through a belt 22 by the
to serious drawbacks in that the impurities carried along
electric motor 23.
by the upwardly directed draught may drop back onto
Actuation of the electric motor 23 imparts to the
the previously combed material, and that the dust may
thus be conveyed with the separated ?bres forming the 25 screen 12 an oscillatory movement between the position
illustrated in solid lines in FIG. 1 and that illustrated in
noil which are still long enough to be recovered and
interrupted lines. The oscillation of the screen furthers
retreated.
the downward movement of the ?bres arrested by the
My invention has for its object an arrangement which
teeth 12a towards the collecting cylinder 5.
disposes of, independently of the combing operations, the
The screen may also be in the shape of a perforated
risk of a dispersion of the centrifugally projected impuri 30
' metal diaphragm or of a gauze carried in a support. The
ties in air and being redeposited on the combed material.
oscillatory movement of the screen may also be obtained
This arrangement insures, together with the suction of the
by means differing from those illustrated, by resorting,
dust, the separation between the latter and hte noil
for instance, to the use of electromagnetic vibrators. The
?bres which are sufficiently long and may be recovered
35 slope of the screen should in all cases further said down
and retreated.
ward movement of the ?bres held back, towards the col
According to my invention this result is achieved by
lecting cylinder 5.
arranging, in proximity with the area of contact between
Obviously while remaining with the scope of my in
the large rotary brush cleaning the circular comb and
vention, as de?ned by the accompanying claims, the
the collecting drum or cylinder, a screen adapted to
retain the ?bres which have been removed from the comb 40 structural details and the general arrangement of the
parts may be modi?ed with reference to the arrange
and which are su?iciently long to justify their recovery
ment described and illustrated by way of example.
and their further treatment, said screen lying in front
What I claim is:
of a suction port connected with suction means adapted
1. In a machine for combing long ?bers having a driven
to collect the impurities projected centrifugally by the
rotary comb for combing the ?bers and removing im
rotary brush. The ?bres thus retained are then con
purities therefrom, a driven rotary brush disposed ra
veyed back toward the cylinders collecting the noil.
dially of said rotary comb for cleaning said rotary comb,
Further features and advantages of the invention will
a driven noil collecting cylinder disposed radially of said
appear in the reading of following description, given
rotary brush and having its axis of rotation below the
by way of example and by no means in a limiting sense,
axis of rotation of said rotary brush, ‘an aspirator having
of a preferred embodiment of my invention, reference
an intake disposed radially of said rotary brush and
being made to the accompanying drawings wherein:
spaced therefrom for communicating ‘with a suction source
FIG. 1 is a diagrammatic side view of a rectilinear
and receiving said impurities removed by said rotary
frame for combing long ?bres and incorporating an ar
brush from said comb, said rotary brush in operation
rangement according to my invention.
55 being driven in a direction of rotation for centrifugally
FIG. 2 is a perspective View of a structural detail of
discharging said impurities toward said aspirator intake,
said arrangement.
at vibratory screen periodically rockably actuated disposed
FIG. 3 is a perspective view of a second embodiment
between said aspirator intake and said rotary brush, dis
of an arrangement according to the invention; and
FIG. 4 is a perspective view of still another embodi 60 .posed inclined downwardly toward said noil collecting
cylinder and having a lower edge disposed longitudinally
ment of an arrangement according to the invention.
of said noil collecting cylinder and actuatable into a
In said drawings:
terminal operative position in which said lower edge is
P designates the ?bre clamping means as a whole,
disposed adjacent the periphery of said noil collecting
R the rectilinear comb, and E the system of drawing
cylinders. C designates the circular comb rotating in 65 cylinder, said screen having apertures to allow said
impurities to pass into said aspirator intake, and said
the direction of the arrow 1. Underneath said circular
screen having said apertures dimensioned to cause the
comb is arranged a large rotary brush 2 carried by the
screen to collect ?bers thereon for delivery to said noil
shaft 3 and rotating in the direction of the arrow 4.
Underneath said brush 2, is positioned the cylinder 5
collecting the noil, which latter cylinder is carried by
collecting cylinder upon periodic vibration thereof.
2. In a machine ‘for combing long ?bers having a driven
70 rotary comb for combing the ?bers and removing im
purities therefrom, a driven rotary brush disposed na
The periphery of the collecting cylinder 5 lies in con
dially of said rotary comb for cleaning said rotary comb,
' tact with the periphery of the brush 2, so that the
the shaft 6 and rotates in the direction of the arrow 7.
3,084,400
3
4
a driven noil collecting cylinder disposed radially of said
rotary brush and having its axis of rotation below the
axis of rotation of said rotary brush, an aspirator having
position in which said lower edge is disposed ‘adjacent
the periphery of said noil collecting cylinder, said screen
an intake disposed radially of said rotary brush and
spaced therefrom for communicating with a suction source
and receiving said impurities removed by said rotary
brush from said comb, said rotary brush in operation
having apertures to allow. said impurities to pass into
said aspirator intake, said apertures being dimensioned
to cause the screen to collect ?bers thereon for delivery
to said noil collecting cylinder upon rockable oscillation
thereof, and said screen comprising a wire mesh.
being driven in a direction of rotation for centrifugally
5. In a machine for combining long ?bers having a
discharging said impurities toward said aspirator intake,
driven rotary comb for combing the ?bers and removing
'a rockably mounted screen disposed between said intake 10 impurities therefrom, a driven rotary brush disposed ra
and said rotary brush, disposed inclined downwardly to
‘ward said noil collecting cylinder and having a lower
edge disposed longitudinally of said noil collecting cylin
der and actuatable into a terminal operative position in
which said lower edge is disposed adjacent the periphery
of said noil collecting cylinder, said screen having aper
tures to allow said impurities to pass into said aspirator
intake, said apertures being dimensioned to cause the
screen to collect ?bers thereon for delivery to said noil
collecting cylinder upon vibration thereof, means rock
ably mounting said screen, and means to periodically
rock said screen to cause it to deliver noil thereon to said
noil collecting cylinder.
3. In a machine for combing long ?bers having a driven
dially of said rotary comb for cleaning said rotary comb,
a driven noil collecting cylinder disposed radially of said
rotary brush and having its axis of rotation below the
axis of rotation of said rotary brush, an aspirator having
an intake disposed radially of said rotary brush and spaced
therefrom for communicating with a suction source and
receiving said impurities removed by said rotary brush
from said comb, said rotary brush in operation being
driven in a direction of rotation for centrifugally discharg
ing said impurities toward said aspirator intake, a periodi
cally rocked screen disposed between said intake and said
rotary brush, disposed inclined downwardly toward said
noil collecting cylinder and having a lower edge disposed
longitudinally of said noil collecting cylinder and actu
rotary comb for combing the ?bers and removing im
atable into a terminal position in which said lower edge
purities therefrom, a driven rotary brush disposed ra
is disposed adjacent the periphery of said noil collecting
cylinder, said screen having apertures to allow said im
purities to pass into said aspirator intake, said apertures
dially of said rotary comb for cleaning said rotary comb,
a driven noil collecting cylinder disposed radially of said
rotary brush and having its axis of rotation below the
axis of rotation of said rotary brush, an aspirator having
an intake disposed radially of said rotary brush and
spaced therefrom for communicating with a suction source
and receiving said impurities removed by said ‘rotary
brush from said comb, said rotary brush in operation
being driven in a direction of rotation for centrifugally 35
discharging said impurities toward said aspirator intake,
a periodically rocked ‘screen disposed between said in
take and said rotary brush, disposed inclined downwardly
toward said noil collecting cylinder and having a lower
edge disposed longitudinally of said noil collecting cylin
der and actuatable into a terminal operative position in
which said lower edge is disposed adjacent the periphery
of said noil collecting cylinder, said screen having a
‘being dimensioned to cause the screen to collect ?bers
thereon for delivery to said noil collecting cylinder upon
rockable oscillation thereof, and said screen comprising a
perforated sheet constructed of sheet metal.
'6. In a machine ‘for combining long ?bers having a
driven rotary comb for combing the ?bers and removing
impurities therefrom, a driven rotary brush disposed ra
dially of said rotary comb for cleaning said rotary comb,
a driven noil collecting cylinder disposed radially of said
rotary brush and having its axis of rotation below the
axis of rotation of said rotary brush, an aspirator having
an intake disposed radially of said rotary brush and spaced
therefrom for communicating with a suction source and
receiving said impurities removed by said rotary brush
from said comb, said rotary brush in operation being
driven in a direction of rotation for centrifugally dis
to allow said impurities to pass into said aspirator in 45 charging said impurities toward said aspirator intake, a
vibratory screen periodically rockably actuated disposed
take, and said screen having said apertures dimensioned
plurality of spaced through elongated, parallel apertures
between said aspirator intake and said rotary brush, dis
posed inclined downwardly toward said noil collecting
to said noil collecting cylinder upon rockable oscillation
cylinder and having a lower edge disposed longitudinally
thereof.
of said noil collecting cylinder and actuatable into a ter
4. In a machine for combing long ?bers having a driven
minal operative position in which said lower edge is dis
rotary comb for combing the ?bers and removing im
posed adjacent the periphery of said noil collecting cylin
purities therefrom, a driven rotary brush disposed ra
der, said screen having apertures to allow said impurities
dially of said rotary comb for cleaning said rotary comb,
a driven noil collecting cylinder disposed radially of said 55 to pass into said aspirator intake, said screen having said
apertures dimensioned to cause ‘the screen to collect ?bers
rotary brush and having its axis of rotation below the
thereon for delivery to said noil collecting cylinder upon
axis of rotation of said rotary brush, an aspirator having
periodic oscillation thereof, said noil collecting cylinder
an intake disposed radially of said rotary brush and spaced
having its axis of rotation o?set from a vertical plane pass
therefrom for communicating with a suction source and
ing
through the axis of rotation of said rotary brush, and
receiving said impurities removed by said rotary brush 60
the offset being in a direction toward said aspirator intake
from said comb, said rotary brush in operation being
and said screen.
driven in a direction of rotation ‘for centrifugally dis
charging said impurities toward said aspirator intake, a
References Cited in the ?le of this patent
periodically rocked screen disposed between said aspirator
UNITED STATES PATENTS
intake and said rotary brush, disposed inclined down
to cause the screen to collect ?bers thereon for delivery
wardly toward said noil collecting cylinder and having
a lower edge disposed longitudinally of said noil col
lecting cylinder and actuatable into a terminal operative
787,139
Wenning et al _________ __ Apr. 11, 1905
1,663,170
2,410,150
Nasmith _____________ __ Mar. 20, 1928
Crochett _____________ __ Oct. 29, 1946
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