US2022042205A1PendingUtilityA1
Device and method for transferring cotton fiber, and device for removing impurity in cotton fiber
Est. expiryOct 25, 2039(~13.2 yrs left)· nominal 20-yr term from priority
Inventors:Xuewen Wu
D01B 1/08D01G 9/14D01G 9/06
27
PatentIndex Score
0
Cited by
0
References
0
Claims
Abstract
A device for transferring a cotton fiber includes a cotton-fiber support plate, a first cover plate, a saw blade roller, a licker-in roller, and a second cover plate. A spacing between the saw blade roller and the licker-in roller and an arc of the saw blade roller covered by the second cover plate are adjusted such that the number of rotations required for transferring the cotton fiber is N. A device for removing an impurity in a cotton fiber is also provided by further adding an impurity-removing plate and an air compensation port to the above transferring device.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . A device for transferring a cotton fiber, comprising:
a saw blade roller; a licker-in roller; a cotton-fiber support plate which is arc-shaped; a first cover plate; a guide plate; a windscreen plate; and two box plates arranged oppositely; wherein the two box plates are arranged at two ends of the licker-in roller and the saw blade roller, respectively; the first cover plate and the cotton-fiber support plate are arranged between the two box plates from top to bottom; a cylindrical cavity is enclosed by the cotton-fiber support plate and the first cover plate; an arc surface of the cylindrical cavity is provided with a first window and a second window arranged oppositely; the first window is communicated with an exit channel enclosed by the guide plate and the windscreen plate between the two box plates; the licker-in roller is arranged in the cylindrical cavity along an axial direction of the cylindrical cavity; the saw blade roller is arranged in the second window facing away from the exit channel; an axis of the saw blade roller is parallel to an axis of the licker-in roller; a gap between a surface of the saw blade roller and a surface of the licker-in roller is no more than 5 mm; the cotton fiber is capable of rotating with the saw blade roller to form a cotton-fiber floating layer; a linear speed of the licker-in roller is great than a linear speed of the saw blade roller during rotation; and a rotation direction of the saw blade roller is opposite to a rotation speed of the licker-in roller to allow the cotton fiber to be transferred from the saw blade roller to the licker-in roller.
2 . The device of claim 1 , wherein the saw blade is provided with a plurality of saw blades; an outer circumference of each of the plurality of saw blades is provided with teeth; two opposite side walls of each of the plurality of saw blades are respectively provided with a rib; the saw blade roller is configured to hook and pull the cotton fiber from between ribs to form an initial floating layer with a thickness of L m ×sin t, wherein L m is a length of the cotton fiber; t is an angle between the cotton fiber and a tangent line of the saw blade roller at an intersection of the cotton fiber and the saw blade roller; t=θ=40±4°; and θ is an angle between an entrance side of the teeth of the saw blade roller and a normal plane of the teeth passing through a top of the teeth.
3 . The device of claim 2 , wherein a licker-in wire layer is evenly wound on an outer circumference of the licker-in roller; a gap between the first cover plate and the licker-in wire layer is no larger than 5 mm; and a gap between the windscreen plate and the licker-in wire layer is no larger than 5 mm.
4 . The device of claim 3 , wherein an end of the first cover plate close to the saw blade roller is a starting end; a distance from the starting end to the saw blade roller is larger than the thickness of the initial floating layer; a distance from the starting end to a line connecting a center of the saw blade roller to a center of the licker-in roller is larger than half of a length S of a chord shared by a virtual circumference of the initial floating layer and a circumference of the licker-in roller; a ratio of the linear speed of the licker-in roller to the linear speed of the saw blade roller is no less than
S
S
-
2
ɛ
L
m
,
wherein ε is an inclination coefficient of the cotton fiber, and selected from 0.8-1.
5 . The device of claim 2 , wherein an arc M of the surface of the saw blade roller between the rib of the saw blade roller and an end of the first cover plate close to the saw blade roller is 42-180°.
6 . The device of claim 2 , wherein the saw blade roller is provided with a plurality of second cover plates spaced apart; an end of each of the plurality of second cover plates is connected to the first cover plate; an arc M of the surface of the saw blade roller covered by each of the plurality of second cover plates is 42-180°; a distance between an end of each of the plurality of second cover plates close to the first cover plate and the surface of the saw blade roller is larger than 21 mm; and a distance between an end of each of the plurality of second cover plates away from the first cover plate and the surface of the saw blade roller is 3-10 mm.
7 . The device of claim 6 , wherein the number N of rotations of the cotton fiber rotating with the saw blade roller under the plurality of second cover plates is larger than (M)/(2Πr j ); r j is a radius of the saw blade roller; a thickness B of the cotton-fiber floating layer is calculated according to a critical diameter formula of a cyclone separator as follows:
B
=
d
c
2
∏
(
M
)
2
∏
r
j
w
ρ
s
2
∏
r
j
*
9
μ
=
d
c
2
∏
(
M
)
w
ρ
s
9
μ
;
wherein w is a rotating speed of the saw blade roller; d c is a diameter of the cotton fiber; ρ s is a proportion of the cotton fiber in the cotton-fiber floating layer; and μ, is a fluid viscosity of air; and Π is Pi.
8 . The device of claim 6 , wherein a length S of a chord of the saw blade roller intersecting with the initial floating layer or the cotton-fiber floating layer under the plurality of second cover plates is calculated as follows:
S
=
2
R
c
2
-
(
R
c
2
-
(
r
j
+
B
)
2
+
(
r
j
+
R
c
+
x
)
2
(
r
j
+
R
c
+
x
)
)
2
;
wherein B is a thickness of the initial floating layer, R c is a radius of the licker-in roller; r j is the radius of the saw blade roller; and x is a distance between the surface of the saw blade roller and the surface of the licker-in roller.
9 . A device for removing an impurity in a cotton-fiber, comprising
the device of claim 8 ; and an impurity-removing plate; wherein the impurity-removing plate is arranged on a side of the cotton-fiber support plate close to the saw blade roller; the impurity-removing plate is detachably connected to the two box plates; the licker-in roller is capable of rotating with respect to the first cover plate to form a low pressure zone on a side of the plurality of second cover plates, so as to reduce an air resistance to the cotton fiber when the cotton fiber rotates centrifugally with the saw blade roller in the low pressure zone.
10 . The device of claim 9 , wherein the cotton-fiber support plate is provided with an air compensation port.
11 . The device of claim 9 , wherein an angle between a line connecting an end of the impurity-removing plate close to the saw blade roller to a center of the licker-in roller and a line connecting the center of the licker-in roller to a center of the saw blade roller is 20-60°; and a distance between an upper end of the impurity-removing plate and the licker-in roller is 15-45 mm.
12 . A method for transferring a cotton fiber using the device of claim 4 , comprising:
rotating the saw blade roller to drive a cotton fiber with an impurity to rotate for N circles to form a cotton-fiber floating layer with a thickness of B; rotating the licker-in roller to remove the impurity from a surface of the cotton fiber in the cotton-fiber floating layer hooked by the licker-in layer or the teeth through an impurity-removing plate; and discharging the impurity and a processed cotton fiber through the exit channel; wherein a cotton-brushing area with a length of S is formed on the licker-in roller intersecting with the cotton-fiber floating layer; the ratio of the linear speed of the licker-in roller to the linear speed of the saw blade roller is no less than
S
S
-
2
ɛ
L
m
;
L m is a length of the cotton fiber; S is larger than 2εL m ; and ε is the inclination coefficient of the cotton fiber, and is selected from 0.8-1.Join the waitlist — get patent alerts
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