U.S. patent number 3,734,307 [Application Number 05/227,042] was granted by the patent office on 1973-05-22 for apparatus for handling rewind rolls.
This patent grant is currently assigned to Midland-Ross Corporation. Invention is credited to Robert E. Bush, Gerrit Degelleke.
United States Patent |
3,734,307 |
Degelleke , et al. |
May 22, 1973 |
APPARATUS FOR HANDLING REWIND ROLLS
Abstract
This invention relates to apparatus for handling rewind rolls
during their buildup at the outer end of rewind arms on a rewind
machine, thence for thence for pivoting the rewind arms and the
rewind rolls to an unloading position convenience for removal.
Inventors: |
Degelleke; Gerrit (Parsippany,
NJ), Bush; Robert E. (Morris Plains, NJ) |
Assignee: |
Midland-Ross Corporation
(Cleveland, OH)
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Family
ID: |
22851502 |
Appl.
No.: |
05/227,042 |
Filed: |
February 17, 1972 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
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41904 |
Jun 1, 1970 |
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Current U.S.
Class: |
414/684;
242/542.3; 242/533.2; 414/739 |
Current CPC
Class: |
B65H
19/305 (20130101); B65H 2301/4148 (20130101); B65H
2301/41486 (20130101); B65H 2405/422 (20130101) |
Current International
Class: |
B65H
19/30 (20060101); B65h 019/30 () |
Field of
Search: |
;214/1BD,147R
;242/65,58.6 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Forlenza; Gerald M.
Assistant Examiner: Abraham; George F.
Parent Case Text
This application is a continuation-in-part of our copending
application Ser. No. 41,904, entitled "Apparatus for Handling
Rewind Rolls", filed June 1, 1970 now abandoned.
Claims
What is claimed and desired to be secured by Letters Patent is:
1. Apparatus for handling rewind rolls comprising a frame, a front
section and a rear section, each of said sections having a rewind
arm support shaft carried by said frame, at least one pair of
rewind arms mounted on said rewind arm support shaft, each rewind
arm being mounted on said shaft at its inner end, means carried by
each pair of said rewind arms at their outer ends for receiving a
strip of sheet material to be wound into a rewind roll, a bracket
fixedly mounted on said rewind arm support shaft, said bracket
having a first arm and a second arm, a rewind roll counterbalance
fluid piston and cylinder assembly having one end mounted on said
frame, a piston rod extending from the other end of said fluid
piston and cylinder assembly and being pivotally attached to said
first arm, a rewind roll unloading fluid piston and cylinder
assembly having one end mounted on said frame, a piston rod
extending from the other end of said rewind roll unloading fluid
piston and cylinder assembly, and being pivotally attached to said
second arm, control means including solenoid operated fluid value
means operatively connected to said rewind arms, said rewind roll
counterbalance fluid piston and cylinder assembly and said rewind
roll unloading fluid piston and cylinder assembly to control the
rewind roll for pivoting during buildup under the control of said
rewind rolls counterbalance fluid piston and cylinder assembly and
thence to their unloading positions under the control of said
rewind roll unloading fluid piston and cylinder assembly.
2. Apparatus according to claim 1, wherein said control means
includes first solenoid controlled fluid valve means for
controlling the flow of fluid to said counterbalance fluid piston
and cylinder assembly responsive to a first range of positions of
said rewind arms, and second solenoid controlled fluid valve means
for controlling the flow of fluid to said unloading fluid piston
and cylinder assembly responsive to a second range of positions of
said rewind arms.
3. Apparatus according to claim 1 wherein said control means
includes a first solenoid controlled fluid valve for controlling a
flow of fluid to retract said counterbalance fluid piston and
cylinder assembly to raise said pair of rewind arms towards a
substantially vertical position during buildup of said rewind
rolls, and a second solenoid controlled fluid control valve for
controlling the flow of fluid to extend said unloading fluid piston
and cylinder assembly to move said pair of rewind arms outwardly to
a substantially horizontally unloading position.
4. Apparatus according to claim 1 further comprising means for
incrementally supplying fluid to said rewind roll counterbalance
fluid piston and cylinder assembly during buildup, and wherein said
control means comprises a first solenoid controlled fluid valve for
controlling the flow of fluid to said means for incrementally
supplying fluid, and a second solenoid controlled fluid valve for
selectively controlling the flow of fluid to said unloading fluid
piston and cylinder assembly.
5. Apparatus according to claim 1, further comprising means for
incrementally supplying fluid to said rewind roll counterbalance
fluid piston and cylinder assembly during buildup, and wherein said
control means comprises a first solenoid controlled fluid valve for
controlling the flow of fluid to said means for incrementally
supplying fluid, a second solenoid controlled fluid valve for
connecting both sides of the piston of said unloading fluid piston
and cylinder assembly to a drain during buildup, a third solenoid
controlled fluid valve for controlling the flow of fluid to said
unloading fluid piston and cylinder assembly for moving said pair
of rewind arms to their unloading positions, a fourth solenoid
controlled fluid valve for connecting both sides of the piston of
said counterbalance fluid piston and cylinder assembly to a drain
during movement of said rewind arms to their unloading positions, a
fifth solenoid controlled fluid valve to control the flow of fluid
to said counterbalance fluid piston and cylinder assembly for
returning said counterbalance fluid piston and cylinder assembly to
its original position.
6. Apparatus according to claim 1 wherein said second arm is
disposed at an angle of about 120.degree. with respect to said
first arm of said bracket mounted on said rewind arm support
shaft.
7. Apparatus according to claim 1 wherein said rewind rolls move
upwardly and outwardly with respect to the rewind machine during
buildup of the rewind rolls, and wherein the rewind arms are
substantially horizontally outwardly disposed with respect to the
rewind machine when said rewind rolls are in their unloading
position.
8. Apparatus for handling rewind rolls comprising a frame, a front
section and a rear section, each of said sections having a rewind
arm support shaft carried by said frame, at least one pair of
rewind arms mounted on said rewind arm support shaft, each rewind
arm being mounted on said shaft at its inner end, means carried by
each pair of said rewind arms at their outer ends for receiving a
strip of sheet material to be wound into a rewind roll, a bracket
fixedly mounted on said rewind arm support shaft, said bracket
having a first arm and a second arm disposed at an angle of about
120.degree. with respect to said first arm, a rewind roll
counterbalance fluid piston and cylinder assembly having one end
mounted on said frame, a piston rod extending from the other end of
said fluid piston and cylinder assembly and being pivotally
attached to said first arm, a rewind roll unloading fluid piston
and cylinder assembly having one end mounted on said frame, a
piston rod extending from the other end of said rewind roll
unloading fluid piston and cylinder assembly, and being pivotally
attached to said second arm, control means including solenoid
operated fluid valve means operatively connected to said rewind
arms, said rewind roll counterbalance fluid piston and cylinder
assembly and said rewind roll unloading fluid piston and cylinder
assembly to control the rewind roll for pivoting during buildup
under the control of said rewind roll counterbalance fluid piston
and cylinder assembly and thence to their unloading positions
wherein the rewind arms extend substantially horizontally outwardly
with respect to the center of the machine under the control of said
rewind roll unloading fluid piston and cylinder assembly, a waiting
truck positionable adjacent the rewind rolls unloading positions,
said truck being drivable on a roadway disposed perpendicular to
the machine.
Description
This invention relates to rewind machines and more particularly to
improvements in means for handling rewind rolls.
In essence, rewind machines are utilized for receiving relatively
wide mill or supply rolls, unwinding same and slitting or cutting
them longitudinally into strips or sub-webs of material. Thence,
the webs are each rewound on individual cores forming separate
rewind rolls, and thereafter the completed rewind roll is removed
from the machine.
While heretofore many different types of apparatus have been used
for handling rewind rolls with reasonable success, our contribution
to the art is a new apparatus which is an improvement over such
prior art apparatus, as the description proceeds.
Assignee's own U.S. Pat. No. 3,291,412 issued Dec. 13, 1966 and
U.S. Pat. No. 3,258,136 issued June 28, 1966 are hereby made of
record. These patents have to do with rewind machines and with roll
handling apparatus therefor. While the foregoing apparatus was
highly successful, the present application concerns improvements
upon the features thereof.
In the handling of rewind rolls after completion of the rewinding
operation, it is desirable to consistently remove a completed
rewind roll without injuring or damaging the material rewound
thereon. It is likewise desirable to remove a completed rewind roll
by means which are safe for the operating personnel. It is also
desirable to use apparatus which may be easily employed with
existing types of rewind machines without greatly altering the
present construction thereof. Applicants have found that it is
desirable to accurately pivot the rewind rolls during the rewinding
operation upwardly and outwardly from the center of the machine,
and upon completion of the rewinding operation to continue to pivot
the rewind rolls outwardly and downwardly from the center of the
machine to a waiting truck. It is the purpose of this invention to
provide apparatus comprising the above desired structural and
operative features.
In order to accomplish the desired results we provide new and
improved apparatus for handling rewind rolls characterized by a
frame, a front section and a rear section. Each of these sections
has a rewind arm supporting shaft carried by the frame, and at
least one pair of rewind arms mounted on the rewind arm supporting
shaft. Rewind rolls are formed at the outer ends of the rewind
arms. A first fluid piston and cylinder assembly is connected to
the rewind arm supporting shaft for controlling the angle of
inclination of the rewind arms through a first portion of their
arcuate stroke, and a second fluid piston and cylinder assembly is
connected to the rewind arm supporting shaft for controlling the
angle of inclination of the rewind arms through a second portion of
their arcuate stroke.
According to one aspect of the invention, the second fluid piston
and cylinder assembly moves the rewind rolls to their unloading
position wherein the rewind arm extends substantially horizontally
outwardly with respect to the center of the machine. As another
aspect of the invention, a waiting truck is positionable under the
rewind rolls when in their unloading position to carry the rolls
away along a roadway disposed perpendicular to the center line of
the machine.
There has thus been outlined rather broadly the more important
features of the invention in order that the detailed description
thereof that follows may be better understood, and in order that
the present contribution to the art may be better appreciated.
There are, of course, additional features of the invention that
will be described hereinafter which will form the subject of the
claims appended hereto. Those skilled in the art will appreciate
that the conception on which this disclosure is based may readily
be utilized as the basis for the designing of other structures for
carrying out the several purposes of the invention. It is
important, therefore, that this disclosure be regarded as including
such equivalent constructions as do not depart from the spirit and
scope of the invention.
One embodiment of the invention has been chosen for purposes of
illustration and description, and is shown in the accompanying
drawing forming a part of the specification, wherein:
FIG. 1 is an end elevation of a rewind machine and apparatus for
handling rewind rolls constructed in accordance with the concept of
this invention;
FIG. 2 is an enlarged end elevation of the mechanism for
controlling the position of the rewind arms;
FIG. 3 is an enlarged sectional view taken along the line indicated
at 3--3 in FIG. 2; and
FIG. 4 is a schematic view of the hydraulic and electrical control
circuitry for controlling the position of the rewind arms.
In FIG. 1 of the illustrated embodiment of the invention, a rewind
machine comprises a frame 10, a front section, indicated generally
at 12, and a rear section, indicated generally at 14. A relatively
wide web of sheet material 16 is fed from a mill or supply roll 18
which is mounted for rotation on a shaft 20 which, in turn, is
mounted on support frame 22. The web 16 passes partially around
guide roll 24, edge guide 26 being provided for purposes of
aligning the side edges of the web. Thence, the web passes
partially around guide rolls 28 and 30, from whence it passes to a
tension roll 32 for purposes of controlling the linear tension of
the web 16. Thereafter, the web passes partially around a driven
pull or feed roll to a spreader roll 36, which is provided for the
purpose of transversely opening or spreading the web 16. The web
then passes partially around two driven feed rolls 38 and 40.
Suitable means are provided to cut the web 16 into a plurality of
elongated longitudinal strips or sub-webs 42 and 44. In the present
embodiment of the invention, this is accomplished by means of a
plurality of slitters or cutters 46 positioned adjacent a driven
backup roll 48. Alternatively, score cuts, shear cuts or razor cuts
may be employed, as desired. Also, the cutters may be adjusted for
different sub-web width, as desired. The sub-webs 42 and 44 then
pass partially around a driven main pull roll 50, from which
adjacent strips of web pass alternately to tracking rolls 52 and
54, and thence to rewind rolls 56 which are formed on rewind cores
58 and rewind rolls 60 which are formed on rewind cores 62.
The front section 12 and the rear section 14 of the rewind machine
are of similar construction and operate in a similar manner. Each
rewind roll 56 is rotatably mounted on a pair of rewind arms 64.
The inner ends of the rewind arms 64 are carried and secured to a
rewind arm support shaft 66 which is pivotally mounted on the frame
10 for selectively controlling the angle of inclination of the
rewind arms, as desired. It will be appreciated that the rewind
arms may be longitudinally adjustably positioned along the rewind
arm support shaft 66 to accommodate rewind rolls of various widths.
In like manner, each rewind roll 60 is rotatably mounted on a pair
of rewind arms 68 and the inner ends thereof are fixedly mounted on
a rewind arm support shaft 70 which is pivotally mounted on the
frame 10 for selectively controlling the angle of inclination of
the rewind arms. The rewind arms are longitudinally adjustably
positionable along the rewind support shaft 70, depending upon the
width of the rewind rolls.
A bracket, indicated generally at 72, is fixedly mounted on the
rewind arm support shaft 66. This bracket has a first arm 74 and a
second arm 76 disposed at an angle of the order of about 120
degrees with respect to the first arm. A front rewind roll
counterbalance fluid piston and cylinder assembly 78 is pivotally
connected to a bracket 80 which is mounted on a frame 10, and a
piston rod 82 extends from the other end thereof and is pivotally
attached to the end of the first arm 74, as at 84. A front rewind
roll unloading fluid piston and cylinder assembly 86 is pivotally
connected to a bracket 88 which is mounted on the frame 10, and a
piston rod 90 extends from the other end thereof and is pivotally
attached to the end of the second arm 76, as at 92. Suitable
control means are provided to control the rewind roll 56 for
pivoting counterclockwise, as viewed in the drawing, during buildup
thereof under the control of the piston and cylinder assembly 78,
and upon completion of the rewind rolls to pivot it upwardly and
outwardly from the center of the machine to its unloading position
as indicated by the broken lines in the drawings under the control
of the piston and cylinder assembly 86. In this position the rewind
arm 64 extends substantially horizontally outwardly with respect to
the center of the machine. The precise position of the rewind arms
when changing over from one piston and cylinder assembly to the
other piston and cylinder assembly may be selected, as desired.
However, it should be so selected that when one piston is passing
over its dead center position, control is being maintained by the
other piston and cylinder assembly. Thereafter, the rewind rolls 56
are loaded onto a waiting truck 102, which is driven away on a
roadway 104 disposed in perpendicular relationship to the
machine.
The tracking roll 52 is supported by a tracking arm 140, FIG. 1,
which is centrally pivotally mounted on a frame 142 that is
adjustably mounted on slideway 144 for purposes of aligning each
individual tracking roll with respect to its corresponding rewind
roll. It will be appreciated that the slideway extends the entire
width of the machine, and a plurality of tracking roll assemblies
are mounted thereon, one being provided for each rewind roll. The
end of the arm 140 is pinned to connecting links 146, FIGS. 2 and
3, as by means of pin 148 and the connecting links are
interconnected by a shaft 150. A universal joint 152 connects shaft
150 to a piston 154 extending from a fluid cylinder 156, which is
fixedly mounted with respect to the shaft 150 and the tracking arm
140. Control of the fluid in the cylinder 156 controls the nip
pressure between the tracking roll and the rewind roll.
It will be noted that the arcuate travel of the tracking rolls is
relatively short compared to the arcuate travel required by the
rewind roll as it builds up from an initial relatively small
diameter to a relatively large diameter towards the end of the
rewinding operation and, therefore, the rewind arms are adapted to
advance outwardly away from the lay-on roll in successive steps or
increments. This is effected by means of the fluid cylinder 78. As
seen in FIG. 2, the universal joint 152 is provided with a surface
158 which is adapted to contact finger 160 depending from a tray
162, the tray 162 being fixedly mounted on shaft 164. The shaft 164
extends the entire width of the machine and is mounted for pivotal
movement on the sides thereof. A plurality of fingers 160 extend
from the tray 162, one being provided for each rewind roll. The
first finger to be contacted by its respective tracking roll
assembly actuates the finger and, thereby, rotates the shaft 164. A
hub 166 is mounted on shaft 164 and is provided with a projecting
member 168 for actuating a switch mechanism 170 to prevent
overtravel of the shaft 164. The projecting member 168 controls the
switch mechanism 170 which stops the entire rewind machine and,
thereby, prevents hazardous breakage. A micro-torque rotary fluid
valve 172 is mounted on the frame of the machine and
interconnecting linkage 174 operatively connects the hub 166 to the
fluid valve 172 so that in operation, an angular movement of the
shaft 164 provides a corresponding movement of the valve 172. As
best seen in FIG. 4, valve 172 is part of a fluid system for
angularly controlling the position of the rewind arms.
Referring to FIG. 4, the fluid control system is shown as including
a reservoir 176 from which hydraulic fluid is pumped by a pump 178
into the system, the pressure in the system being observed by a
gauge assembly 182 provided for the purpose. A first two-way
solenoid controlled hydraulic valve 184 is positionable between a
first non-operative position 186, wherein the input line 188 is
blocked and the output line is connected to a drain 190, and an
operative position 192 wherein the input line 188 receives
hydraulic fluid under pressure from a main supply line 194,
connected to the pump 178, and passes it to an output line 196
containing a pressure regulating valve 198 for maintaining it at a
preselected constant value. The output line leads through a check
valve 200 to the micro-torque rotary fluid valve 172. In operation,
when the rewind roll 56, FIG. 1, is slowly building up, the
solenoid valve 184 is switched to its operative position 192 to
supply fluid to the valve 172 which, in turn, is periodically
switched to its open position by the linkage 174 in the manner
described hereinbefore. When in its open position, the valve 172
passes hydraulic fluid through line 202 and check valve 204 to the
counterbalance cylinder assembly 78, as at 206, to retract the
piston rod 82 and, thereby, raise the rewind arms 64 and rewind
roll 56 to accommodate the material being added thereto. A drain
line 208 extends from the other end 210 of the cylinder assembly
through the valve 172 to a drain provided for the purpose. When the
valve 172 is in its non-operative position, flow of fluid is
prevented in the drain line by a stop 212, and back-flow in line
202 is prevented by the check valve 204, thereby retaining the
piston rod 82 in a fixed position. At the same time a second
two-way solenoid controlled hydraulic valve 214 is switched to its
operative or "float" position 216 wherein hydraulic fluid from line
218 connected to the unloading cylinder assembly 86 at 220, and
fluid from line 222 connected to the unloading cylinder assembly 86
at 224 are both directed to a drain 226. This provides a dampening
action during buildup of the rewind roll.
When the rewind arms 64 reach their vertical positions and the
rewind roll is complete, the rewind arms actuate a switch 228, FIG.
1, which transmits a signal through control line 230 to a solenoid
control switching circuit 232. This circuit switches the first
solenoid controlled hydraulic valve 184 to its non-operative
position 186, thereby preventing additional flow of fluid to the
counterbalance cylinder assembly 78, and switches the second
solenoid controlled valve 214 to its inoperative position 234
wherein no fluid passes therethrough. At the same time, the
solenoid control switching circuit switches a third three-way
solenoid controlled valve 236 from its non-operative position 238,
wherein no fluid flow passes therethrough, to its first operative
position 240 wherein fluid under pressure passes from the supply
line 194 through line 222 to the unloading cylinder assembly 86 at
224 to extend the piston rod 90 and, thereby, rotate the rewind
roll from its vertical to its horizontal position, adjacent the
waiting truck 102, while the line 218 is connected to a drain 242.
Also, at the same time, the solenoid control switching circuit
switches a fourth two-way controlled valve 244 from its inoperative
position 246, wherein no fluid passes therethrough, to its
operative or "float" position 248 wherein hydraulic fluid from line
250 connected to the counterbalance piston and cylinder assembly 78
through line 252 and the line 202, as well as hydraulic fluid from
line 254 connected to the counterbalance piston and cylinder
assembly 78 through line 256 and the line 208 are both directed to
a drain 258. This provides a dampening action during movement of
the rewind roll towards its unloading position.
Just before the rewind arms reach their final unloading positions,
indicated by the broken lines in FIG. 1, the rewind arms actuate a
switch 260 which transmits a signal through control line 262 to the
solenoid control switching circuit 232, FIG. 4. This circuit then
switches the third solenoid controlled valve 236 from its first
operating position 240 to its non-operative position 238 wherein no
fluid flow passes therethrough, and at the same time the fourth
solenoid controlled valve 244 is switched from its operative
position 248 to its inoperative position 246, wherein no fluid
passes therethrough. This switching procedure terminates the power
input into the rewind arms and allows the rewind roll 56 to coast
to its final unloading position, as indicated by the broken lines
in FIG. 1.
After the completed rewind roll has been unloaded and the operator
is ready to start a new cycle of operation, the operator manually
operates a switch in the solenoid control switching circuit 232
which switches the third solenoid controlled valve 236 from its
non-operative position 238 to its second operative position 264
wherein fluid under pressure passes from the supply line 194
through line 218 to the unloading cylinder and piston assembly 86
at 220 to retract the piston rod 90 and, thereby, rotate the rewind
roll from its horizontal unloading position to its vertical
position. At the same time, the fourth solenoid controlled valve
236 is moved from its inoperative position 246 to its operative
position 248 to provide a dampening effect. When the rewind arms 64
reach their vertical positions, they actuate the switch 228 which,
in turn, actuates the solenoid control switching circuit 232 to
switch the fourth solenoid controlled valve 236 from its second
operative position 264 to its non-operative position 238 and at the
same time the second solenoid controlled valve 214 is switched from
its non-operative position 234 to its operative or "float" position
216. Also, at the same time the solenoid control switch circuit 232
switches a fifth three-way solenoid controlled valve 266 from its
inoperative position 268 wherein no flow passes therethrough to its
first operative position 270 wherein fluid under pressure from the
supply line 194 passes therethrough to the line 256, and thence
through the line 208 to enter the counterbalance piston and
cylinder assembly 78 at 210, thereby extending the piston 82 and
causing the rewind arm to rotate from its vertical position to its
position as indicated by the solid lines in FIG. 1.
When the rewind arms 64 reach their positions, as indicated by the
solid lines in FIG. 1, they actuate a switch 272 which transmits a
signal through control line 274 to the solenoid control switching
circuit 232 which switches the fifth three-way solenoid controlled
valve 266 from its first operative position 270 to its inoperative
position 268, while at the same time it switches the second
solenoid controlled valve 214 to its operative position 216 to its
inoperative position 234. The rewind arms 64 rest in this position
until the operator is ready to start another rewind operation, and
at that time he manually actuates the solenoid control switching
circuit 232 to switch the first solenoid controlled valve 184 from
its inoperative position 188 to its operative position 192, while
at the same time the second solenoid controlled valve 214 is
switched from its inoperative position 234 to its operative
position 216. The cycle is then repeated in the same manner as
described hereinbefore.
In order to prevent back-flow in the lines 218, 222, 256 and 252,
check valves 276, 278, 280 and 282, respectively, are mounted
therein. On some occasions it may be desirable for the operator to
manually raise the rewind arms 64 from their positions as shown by
the solid lines of FIG. 1 to their vertical positions. For this
purpose the fifth solenoid controlled valve is provided with a
second operative position 284 wherein hydraulic fluid under
pressure passes from the main supply line 194 through lines 252 and
202 to the counterbalance cylinder assembly 78 at 206 to, thereby,
retrack piston rod 82 and raise the rewind arms 64.
In like manner the rear section 14 of the machine is provided with
a bracket 106 having a first arm 108 and a second arm 110. A rear
rewind roll counterbalance fluid piston and cylinder assembly 112
is pivotally connected to a bracket 114 which is mounted on the
frame 10, and a piston rod 116 extends therefrom and is pivotally
attached to the end of the first arm 108, as at 118. A rear rewind
roll unloading fluid piston and cylinder assembly 120 is pivotally
connected to the bracket 88, and a piston rod 122 extends therefrom
and is pivotally attached to the second arm 110, as at 124. The
control means for the rear section operate in the same manner as
that described hereinbefore in connection with the front section so
that upon completion of the rewind roll, it pivots upwardly and
outwardly from the center of the machine to its unloading position,
as indicated by the broken lines in the drawing, under the control
of the piston and cylinder assembly 120. In this position the
rewind arms 68 extend substantially horizontally outwardly with
respect to the center of the machine. Thereafter the rewind rolls
60 are loaded onto a waiting truck 134 which is driven away on a
roadway 136, provided for the purpose.
It will thus be seen that the present invention does indeed provide
an improved apparatus for handling rewind rolls which is superior
in simplicity, economy and efficiency as compared to prior art such
devices.
Although a particular embodiment of the invention is herein
disclosed for purposes of explanation, various modifications
thereof, after study of this specification, will be apparent to
those skilled in the art to which the invention pertains.
* * * * *