Title: Rotating station for reels
Abstract: The invention relates to a method for changing the winding-off direction of reels (W,W1) which are delivered in succession by a delivery station (1) in order to form a reel group (WG) in which the front faces of adjacent reels (W) are equally spaced (a) and the longitudinal axes (LA) of the reels (W) are in a line. In practice, it is sometimes necessary to arrange the preparation machine for producing a reel (W) in such a way in relation to the combing machine group being used that the reels that are delivered by the preparation machine have a different winding-off direction in the ejected winding-off direction to that necessary for the subsequent combing machine. It is therefore necessary to rotate the reels (e.g. 90° or 180°) while preserving the division of the reel group. To this end, the reels (w) that are delivered by the delivery station (1) (W) are gradually shifted crosswise to their direction of delivery by a receiving element (41, 42) of a rotating device (30), by which means they come to lie in a plane in which the longitudinal axis (LA) of the reel (W) lies, are rotated and can then be moved out of the area of the receiving element (42) in the direction of its longitudinal axis (LA).
Patent Number: 6,962,307 Issued on 11/08/2005 to Scheurer
| Inventors:
|
Scheurer; Paul (Winterthur, CH)
|
| Assignee:
|
Maschinenfabrik Rieter AG (Winterthur, CH)
|
| Appl. No.:
|
831202 |
| Filed:
|
November 2, 1999 |
| PCT Filed:
|
November 2, 1999
|
| PCT NO:
|
PCT/CH99/00512
|
| 371 Date:
|
July 18, 2001
|
| 102(e) Date:
|
July 18, 2001
|
| PCT PUB.NO.:
|
WO00/28118 |
| PCT PUB. Date:
|
May 18, 2000 |
Foreign Application Priority Data
| Nov 11, 1998[DE] | 198 51 898 |
| Current U.S. Class: |
242/559.1; 242/559.3; 414/911 |
| Intern'l Class: |
B65H 019/00 |
| Field of Search: |
242/559,559.1,559.3
414/911
|
References Cited [Referenced By]
U.S. Patent Documents
| 2735538 | Feb., 1956 | Boehm.
| |
| 3695539 | Oct., 1972 | Lindstaedt.
| |
| 4386741 | Jun., 1983 | Weiss et al.
| |
| 4684307 | Aug., 1987 | Lattion et al.
| |
| 4708300 | Nov., 1987 | Goetz.
| |
| 5141095 | Aug., 1992 | Kamp.
| |
| Foreign Patent Documents |
| G9111871.9 | Nov., 1992 | DE.
| |
| 4225417 | Mar., 1993 | DE.
| |
| 19720545 | Nov., 1998 | DE.
| |
| 406923 | Jan., 1991 | EP.
| |
| 454979 | Nov., 1991 | EP.
| |
| 52-25125 | Feb., 1977 | JP.
| |
| 54-8184 | Apr., 1979 | JP.
| |
| 61-145082 | Jul., 1986 | JP.
| |
| 3-269120 | Nov., 1991 | JP.
| |
Other References
Patent Abstracts of Japan, 61145082 Published Jul. 1986.
Patent Abstracts of Japan 03269120 Published Nov. 1991
|
Primary Examiner: Nguyen; John Q.
Attorney, Agent or Firm: Hand; Francis C., Garella, Byrne, Bain, et al
Claims
1. In combination,
a preparatory machine for sequentially delivering wound laps, each wound lap
having a longitudinal axis;
a conveying belt disposed transversely of said preparatory machine for sequentially
receiving the delivered wound laps;
means for driving said conveying belt in stepwise manner; and
means located between said preparatory machine and said conveying belt for sequentially
rotating each wound lap 180° in a plane of said longitudinal axis thereof
and conveying each wound lap from said preparatory machine onto said conveying
belt in coaxially equi-spaced apart relation, said latter means including a rotatable
shaft disposed perpendicularly of said conveying belt at one end of said conveying
belt, at least two receiving means mounted on opposite sides of said shaft, each
said receiving means being positioned to engage a wound lap delivered to said conveying
belt and to rotate the engaged wound lap at least 180° onto said conveying
belt in response to rotation of said shaft and a lifting device for raising and
lowering said shaft relative to said conveyor belt.
2. A method of conveying wound laps comprising the steps of
producing a series of wound laps in a winding station, each of said laps having
a web wound onto a tube about a longitudinal axis of the tube;
delivering each wound lap successively from said winding station onto a conveyor
belt extending in a direction parallel to said axis;
sequentially lifting and rotating each wound lap delivered to said conveyor belt
180° to reverse a winding off direction of the web on the tube thereof;
thereafter depositing each wound lap onto said conveyor belt after said step
of rotation;
thereafter driving said conveyor belt in stepwise manner to space the wound laps
delivered to said conveyor belt in equi-spaced relation along said conveyor belt; and
conveying the wound laps on said conveyor belt in stepwise manner longitudinally
of said axis to a series of combing machines.
3. A method as set forth in claim 2 wherein each wound lap is moved transversely
of said axis before and after said step of rotating said wound lap.
Description
The invention relates to a method for changing the unwinding direction of wound
laps supplied temporally successively from a delivery station in order to form
a group of wound laps in which the face sides of adjacent wound laps have the same
distance and the longitudinal axes of the wound laps are disposed in one line.
The invention similarly relates to apparatuses for rotating a wound lap in a plane
transversally to its longitudinal axis, with the respective apparatus being provided
with a rotational shaft.
The wound laps (e.g. lap rolls) which are produced in a preparatory machine are
produced by winding a web on an empty bobbin and are then ejected from the preparatory
machine by producing a breaking.
In order to supply the preparatory machine with textile material (e.g. slivers)
several rows are provided to the feed table of the preparatory machines. These
cans are filled by draw frames which are provided upstream of the preparatory machines
and thereafter moved by way of conveying systems or by hand to the feed table of
the preparatory machine.
In order to keep the paths of transport small and to thus minimize the time applied
for the transport of the cans, the preparatory machine, or its feed table respectively,
must be associated with the can parking places in accordance with the upstream
machines (draw frames).
In order to transfer the wound laps which are produced in the preparatory machine
in a group via a transport system to downstream combing machines, the wound laps
ejected by the preparatory machine are received by a conveying device and compiled
step by step into a group of wound laps, with adjacent wound laps being disposed
at a similar distance from one another. Such a device is shown for example in JP-52-25
125, with the wound laps supplied by the preparatory machine being discharged transversally
to the delivery place via a conveyor belt and being compiled into a group of wound
laps. This group is then transferred by means of a conveying system which is guided
on a craneway to the respective combing machine. A similar device is disclosed
in DE-197 20 545.3.
In the aforementioned embodiments, the group of wound laps which is compiled
in
the preparatory machine is received by a transport system and deposited close to
the respective combing machine, with the ends of the wound web being aligned in
such a way that the wound laps are provided in the desired unwinding direction.
In order to adapt the flow of material within the spinning mill according to
the
local conditions, it may occur that the adjacent row of combing machines is disposed
offset by 90° or 180° to the provided group of wound laps with respect
to the aforementioned embodiments. In this case the end of the wound lap would
face in the wrong direction following the transfer of the wound lap in the aforementioned
manner and the wound lap would be present offset by 90°. This means that the
unwinding direction of the wound laps placed on the combing machine would be facing
opposite to the desired unwinding direction and the wound laps would therefore
not be present in the desired unwinding direction.
In this case it is necessary to turn the wound laps in a plane of its middle
axis
in order to obtain the desired unwinding direction.
An apparatus is known from JP-54-8184, with the wound lap which is ejected by
the preparatory machine being transferred to a trough plate which is in connection
with a rotating and lifting device. In this device the trough plate is made to
rotate by means of an angular gear, with a lifting movement being produced simultaneously
with the help of a crank guide. As soon as the wound lap has been twisted (which
in this case is 90° in the horizontal direction), it can be received by the
grasping arms of a conveying system.
The arrangement shown is highly complex and is not suitable to form a group of
wound laps with respectively aligned lap ends.
A device is known from EP-A2-406 923, with an apparatus being provided in order
to change the orientation of thread packages. This device is also highly complex
and not provided or suitable to produce an even group of wound laps.
The arrangement shown is highly complex and is not suitable to form a group of
wound laps with respectively aligned lap ends.
A device is known from EP-A2-406 923, with an apparatus being provided in order
to change the orientation of thread packages. This device is also highly complex
and not provided or suitable to produce an even group of wound laps.
The invention is therefore based on the object of providing a method and an apparatus
which allows changing the orientation of the lap ends after delivery from a preparatory
machine, with the subsequent formation of a regular group of wound laps for transfer
to a downstream conveying system being ensured.
This object is achieved on the one hand by a method, with the wound laps which
are supplied by the delivery station are turned by at least 90° in a plane
in which the longitudinal axis of the wound lap is disposed and with the laps being
displaced thereafter step-by-step in the direction of their longitudinal axes.
It is further proposed to displace the wound laps supplied by the delivery station
step-by-step transversally to their direction of delivery by way of a receiver
in a rotating apparatus, by means of which they are rotated by 180° in a plane
in which the longitudinal axis of the wound lap is disposed and the wound laps
are thereafter displaced from the zone of the receiver in the direction of their
longitudinal axis.
This allows changing the orientation of the unwinding direction by maintaining
the horizontal direction of conveyance for the formation of the group of wound
laps. Moreover, said horizontal direction of conversion can be used simultaneously
to slide the wound laps directly on to the rotating apparatus.
In order to protect the outermost layer of the wound lap it is further proposed
that the wound laps are moved before and after the rotating process transversally
to their longitudinal axes. This means that the wound laps are lifted off of their
conveying device prior to the rotating process and thereafter inserted again.
The invention is further achieved by an apparatus, with means being provided
in order to intermittently displace the wound laps which are delivered by the delivery
station in intervals transversally to the delivery direction in order to form a
group of wound laps in which the face sides of adjacent wound laps are provided
with a similar distance and the longitudinal axes of the wound laps are disposed
in one line and the apparatus for rotating the wound laps projects at least partly
in the displacement zone of the wound laps and is provided with at least two receiving
means which face in the opposite direction.
This apparatus allows supplying the wound laps during their stepwise transport
movement directly to the rotating device and to grasp the same by said device in
order to change the orientation of the unwinding direction.
The means for the stepwise displacement can consist of a conveyor belt which
is driven by way of a controlled drive. This ensures that on the one hand there
are no collisions during the transport of the wound laps and on the other hand
an exactly aligned group of wound laps is provided for transfer to a conveying system.
It is preferably proposed to provide the rotating apparatus with a lifting device.
In order to limit the transversal conveying device to provide a group of wound
laps to the required amount and to maintain the lateral distances between the wound
laps in the group of wound laps, it is proposed that the smallest distance between
the rotational shaft of the apparatus and the face side of the would lap pushed
completely onto the receiving means corresponds to half the distance between the
face sides of adjacent wound laps within the group.
It is preferably proposed that the rotating apparatus rotates the wound lap by
180′ and moves it by an angular division, as seen in the direction of displacement
of the wound laps, according to the predetermined distances of adjacent wound laps
within the group.
In order to ensure the positioning of the wound lap during the rotating movement
on the rotating apparatus it is proposed that the receiving means are provided
at least partly with a non-slip cover.
An apparatus is further proposed for achieving the object in accordance with
the
invention, with the approximately vertically aligned rotational shaft of the receiver
being disposed outside of the bearing surface of the wound lap in order to transfer
the wound lap to a transfer position from which it is supplied by transfer means
to a subsequent means for producing a group of wound laps in which the face sides
of adjacent laps have the same distance and whose longitudinal axes are disposed
in one line.
A further embodiment of the invention is proposed, with the rotational shaft
of
the receiver being arranged, as seen from the delivery direction of the wound lap
from the delivery station, to the right or left outside of the zone which is disposed
between the vertical planes in which the face sides of the wound lap are disposed.
This arrangement provides a constructionally simple possibility of transfer of
the wound lap receiver to a delivery position to a downstream means for forming
a group of wound laps.
A method is further claimed according to the main claim, with the wound laps
supplied
by the delivery station being received by a rotating apparatus and being transferred
in the horizontal direction to a downstream longitudinal conveyor, with the wound
laps being rotated during their horizontal movement or directly before the delivery
to the longitudinal conveyor about an angle in a plane in which the longitudinal
axis of the respective wound lap is disposed.
This apparatus allows attaching the storage trough of the preparatory machine
in a fixed manner and to perform the transfer to a downstream longitudinal conveyor
with the rotating apparatus. This allows a simple constructional design. This means
that the rotating apparatus also assumes the task of the transport of the wound
laps in addition to the rotation of the wound lap.
In order to protect the wound lap, and its outermost layer in particular, it
is
proposed to vertically move the wound lap before and after the rotating process,
so that it rests freely in the rotating apparatus after the rotating and conveying process.
In order to obtain a certain assignment to the downstream combing machines it
is proposed to rotate the wound laps by 90°. In this way the downstream combing
machines can be arranged in their longitudinal direction parallel to the direction
of ejection of the preparatory machine, which in a number of cases is very advantageous
for the downstream flow of material.
The invention is also achieved by an apparatus, with said apparatus being held
horizontally displaceable in a guide element for rotation of the wound lap about
a vertical rotational shaft and being provided with at least one receiving means
for receiving a wound lap which has been supplied by a preparatory machine. The
receiving means is fixedly connected with the rotational shaft of the apparatus
in order to transfer the received wound lap to a downstream means for producing
a group of wound laps.
It is preferably proposed that the apparatus turns the wound lap by approx. 90°
and the means for forming the group of wound laps is arranged in such a way that
the direction of displacement of the wound laps or the longitudinal direction of
the means is aligned approximately parallel to the delivery direction of the delivery station.
It is further proposed that the apparatus is provided with at least four receiving
means which project outwardly from its rotational shaft, with at least two of the
receiving means being disposed in one line. It is possible with this cross-shaped
arrangement of the receiving means to rotate the rotational shaft of the apparatus
in only one rotational direction, thus enabling a substantial simplification of
the rotational drive. It is thus no longer necessary to perform a reversing movement
in order to again receive a subsequent wound lap provided by the preparatory machine.
In this arrangement it is also advantageous to provide the receiving means with
a non-slip layer in order to prevent any slippage of the wound lap during the transport.
Further advantages of the invention are explained in closer detail by reference
to the enclosed embodiments, wherein:
FIG. 1 shows a schematic top view of a combing section of a spinning mill.
FIG. 2 shows an enlarged side view X according to FIG. 1.
FIG. 3 shows a side view according to FIG. 2.
FIG. 4 shows a schematic top view of a combing section of a spinning mill according
to FIG. 1 with a further embodiment.
FIG. 5 shows a partial view according to FIG. 4 with a further embodiment.
FIG. 6 shows a schematic partial view of a top view of a combing section (FIG.
4) in the delivery zone of the preparatory machine.
FIG. 7 shows a side view X according to FIG. 6.
FIG. 8 shows a further embodiment according to FIG. 3 on an enlarged scale.
FIG. 1 shows a combing section of a spinning mill with a preparatory machine
1 on which lap rolls W (hereinafter referred to as wound laps) are produced.
The preparatory machine
1 is provided with a feed table
2 to which
rows of cans K
11 and K
12 are assigned. The slivers withdrawn from
the cans are supplied to drafting arrangements (not shown) and drafted into nonwovens.
The nonwovens are placed on top of one another on the feed table
2 and supplied
jointly to a winding apparatus
4 (FIG. 2). Before the web
6 thus
produced is supplied to the winding apparatus
4, it is guided through calender
rollers (not shown in closer detail). The wound lap W produced in the winding apparatus
4 through lap rollers
7 and
8 is ejected backwardly by means
of a needle
10. During this process the web
6 is severed, with the
end E placing itself on the outer circumference of the wound lap. During the ejection
process in the direction of the arrow, the wound lap W is transferred to a trough
15, of a conveyor belt
14 which is a part of a transverse conveying
device
12.
The wound laps W which are placed on the conveyor belt
14 are displaced
step-by-step in the direction of the arrow and combined into a group of wound laps
WG. The cross conveyor
12 extends into the zone of movement of a displacement
bridge
20 which is guided overhead on rails
21 and
22. The
rails
21 and
22 rest on the floor on schematically shown beams T.
As is indicated by a double arrow, the displacement bridge
20 can move along
rails
21 and
22 in both directions and is driven by a drive source
(not shown in closer detail) which on its part is controlled by a control apparatus
which is schematically shown in FIG. 3.
Combing machines K
1 to K
5 are arranged in a row behind one
another parallel to the cross conveyors
12, which combing machines are also
driven over by the displacement bridge
20. The individual combing machines
K
1 to K
5 are provided with swivellable troughs
24 on which
rest a group of eight reserve wound laps RW on standby for follow-up to a working
position AP.
As is shown in FIG. 2 in particular, the wound laps W are wound up on a tube H
which is provided with clearance DL.
As is shown schematically in FIG. 2, a height-adjustable gripper beam
26
is attached to the displacement bridge
20, which gripper beam is provided
with individual gripper arms
27 which can be swivelled into the clearance
DL of tubes H for receiving the wound laps.
The slivers which are produced in the individual combing heads (usually eight)
of the combing machines are transferred in the direction of the arrow to a drafting
arrangement (not shown) of the individual combing machine and joined into a combed
sliver which is deposited in schematically shown cans K. The cans K are ejected
after filling and transferred by hand or a conveying device for further processing
to downstream machines schematically shown in the direction of the arrow.
The placement of the combing machines to the preparatory machine
1 as
shown in FIG. 1 can be obtained by respective requirements in the material supply
and discharge.
The choice of this placement leads to the consequence that the unwinding direction
of the wound lap W as ejected by the preparatory machine with respect to the downstream
further conveyance to the combing machines K
1 to K
5 is present in
the wrong direction. This is shown in particular in FIG. 2. The wound lap W which
is ejected to trough
15 shows a clockwise unwinding direction, whereas the
backup wound lap RW which rests on trough
24 requires an anti-clockwise
unwinding direction. This is shown in particular in the illustration of the wound
lap which is situated in the working position AP. It is therefore necessary that
the wound laps W which are supplied by the preparatory machine
1 are rotated
by 180° prior to being received by the displacement bridge
20. This
occurs in a rotating station
30 which will be explained in closer detail
by reference to FIGS. 2 and 3. The rotating station
30 is provided with
a frame
32 which rests on the floor and is fastened there. A cylinder
33
is fastened to frame
32 whose piston rod
34 is fastened to a gearbox
36. A motor M is flange-mounted on the gearbox
36, which motor M
drives a transmission stage (not shown in closer detail) within the gearbox casing
36. A drive element of said gear stage is torsionally rigidly connected
with a shaft
38 which is rotatably held in pipe
40. The pipe
40
is torsionally rigidly flange-mounted on the gearbox casing
36 and is guided
in the vertical direction in the frame
32. Two receivers
41 and
42
which face in opposite directions are fastened to the lower end of shaft
38.
The receivers
41 and
42 can be arranged as shafts which are provided
with a non-slip layer for example so that the wound laps received from the respective
receiver maintain their position during the rotation. The distance b from the middle
axle DA of the rotating station
30 to the face side of the wound lap W
1
corresponds to half the distance a between the adjacent wound laps of a group of
wound laps WG. The consequence is that the wound lap W
1, following the performed
rotating process by 180° to the position as shown in the dot-dash line, is
positioned in such a way that the distance a to the previously rotated wound lap
W
4 is maintained.
As is shown schematically, the empty tubes H are conveyed back to the preparatory
machine
1 on the inner strand of the conveyor belt
14. A detailed
description of this device is explained for example in
DE-A1-197 20 545.3.
The mode of operation of the rotating device
30 is explained in closer
detail below:
As is shown schematically, the empty tubes H are conveyed back to the preparatory
machine
1 on the inner strand of the conveyor belt
14. A detailed
description of this device is explained for example in
DE-A1-197 20 545.3.
The mode of operation of the rotating device
30 is explained in closer
detail below.
The wound lap W as ejected by the preparatory machine
1 reaches the winding
position W
1 by means of stepwise displacement in the direction of the arrow
of conveyor belt
14, with the tube H sliding with its clearance DL over
the free end of receiver
41 during said displacement. Once the position
has been reached (which is controlled via the pitch advancement), the intermittent
movement of the conveyor belt
14 is interrupted. The cylinder
33
is now actuated by a schematically shown control device S and displaces its piston
rod
34 in the vertical direction by a predetermined amount. By a respective
connection, the gearbox casing
36 and the pipe
40 are lifted with
the shaft
38. Simultaneously, the receivers
41 and
42 are
also displaced upwardly in the vertical direction, as a result of which the receiver
41 comes to rest on the inner surface of tube H. In the case of a further
vertical displacement the wound lap W
1 is lifted off of the conveyor belt
14. After reaching the height indicated with a dot-dash line, the motor
M is activated by the control unit S and places the gear within the gearbox casing
36 in motion. As a result, shaft
38 and thus also the receivers
41
and
42 are turned in a horizontal plane until a rotational angle of 180°
is reached and the wound lap W
1 is situated in the winding position W
3.
Once this position has been reached, the motor M is stopped again and the cylinder
33 is activated by the control unit S. As a result, the piston rod
34
is moved downwardly again, with receiver
41 also performing a downward vertical
displacement. This displacement is made until the position as shown in FIG. 3 is
reached, with the wound lap W
3 resting completely on the conveyor belt
14
and the receiver
41 no longer having any contact with the inner surface
of the tube. After performing this rotational process the end of the wound lap
is now in the correct unwinding direction for the downstream combining machines.
The winding place W
1 is empty again and ready for subsequent receiving.
Once a new wound lap W has been supplied again by the preparatory machine
1
to the conveyor belt
14, it is displaced again step-by-step by a winding
division until the new wound lap is disposed in the winding position W
1
again. As a result of this stepwise movement the previously rotated wound lap W
3
is displaced to the winding position W
4, as a result of which receiver
42
can rotate freely again in order to transfer a downstream wound lap W
1 to
the winding position W
3. Once a complete group of wound laps WG is located
in the zone of the receiver by grippers
26 of the displacement bridge
20,
a complete group can be received for follow-up to the combing machine K
4
for example.
The device proposed herein allows a simple and careful rotation of the wound
lap, with the transversal displacement of the wound lap being directly included simultaneously.
FIG. 4 shows a further installation, with the wound laps RW, which are in reserve
in the combing machines, are present offset by 90° to the wound lap W which
is ejected from the preparatory machine
1 to a receiving trough
50.
This machine line-up can also be obtained by a respective arrangement of the machines
which are upstream and downstream of this process stage. The same elements which
were described in FIG. 1 are provided with the same reference numerals in FIG.
4 so that the same need not be explained any further.
Only two downstream combing machines K
1 and K
2 are shown in FIG.
4. In practice, however, at least six combing machines are downstream of a preparatory
machine. To ensure that the unwinding direction of the wound laps is correctly
provided to the combing machines, a vertical rotational shaft
52 is provided
through which the trough
50 with the wound lap W is transferred by arm
54
to a transfer location US (shown with the broken line) by means of arm
54.
This swivelling movement is marked with a double arrow.
Once the place of deposit is free on the conveyor belt
14 of the downstream
cross conveyor
12 which is opposite of the transfer place US, the wound
lap W is transferred by way of a pin
56 (e.g. a cylinder) to the conveyor
belt
14. Stops (not shown) can be provided in the zone of the conveyor belt
14 on the cross conveyor
12 in order to limit the rolling path of
the wound lap, so that it will come to lie securely on the conveyor belt.
In the present case a complete group of wound laps WG is present on the cross
conveyor
12 for transfer to the displacement bridge
20 and for transfer
to a downstream combing machine which reports a demand for wound laps. Once the
group of wound laps WG has been removed by the crane bridge
20, the stepwise
conveyance of the wound laps W supplied to the conveyor belt
14 for the
purpose of the formation of a new group of wound laps WG can be continued, as was
already explained above
FIG. 5 shows a partial sectional view of an installation. As in the example
of FIG. 4 the wound laps are present in the combing machine K
1 . . . K
2
offset by 90° on the delivery trough
50 of the preparatory machine
1. Furthermore, the combing machines are lined up offset by 180° as
compared with the preceding example, so that the winding progress occurs on the
downstream combing machines in the opposite direction. This means that the wound
lap W must be turned by 90° and the unwinding direction must be turned by
180° as compared with the solution shown in FIG. 4.
For this purpose trough
50 is swivellable about a rotational shaft
58,
as is shown with the double arrow. Moreover, the unwinding direction is reversed.
The transfer to the conveyor belt
14 of a downstream cross conveyor
12
is also performed in this case by means of a pin
56, as has been explained
in the preceding example.
FIG. 6 shows a further embodiment, with the wound lap W which is ejected from
the preparatory machine
1 being supplied to trough
50. In contrast
to the example of FIGS. 4 and 5, the trough
50 is immovably attached. A
cross conveying device
12 is arranged parallel and adjacent to the trough
50, with the device having a conveyor belt
14 in order to form a
group of wound laps WG (as described above) for a downstream conveying system (not shown).
In the zone of the transfer between the trough
50 and the shown end of
the cross conveyor
12, a rotating station
60 is arranged which is
shown in particular in the enlarged side view X of FIG. 7.
The rotating station
60 consists of a frame
72 which rests on the
floor. Guide rails
70 are attached to the upper end of the frame
72
on either side, which rails extend transversally to the conveying direction of
the cross conveyor
12 and the direction of ejection of the preparatory machine.
Wheels
69 of a carriage
68 run in said guide rails
72.
The actual rotating apparatus for the wound laps is rotatably held in said carriage.
Carriage
68 is associated with a displacement apparatus which is attached
to the frame which is not shown for reasons of clarity of the illustration. Said
displacement apparatus could consist of a cylinder for example which acts on the
one hand on the frame
72 and on the other hand on carriage
68 in
order to perform the horizontal displacement as indicated with the double arrow.
The rotating apparatus consists of a cylinder
65 which is rotatably held
(see double arrow) in the carriage
68. The rotational movement of the cylinder
65 is performed by a schematically shown drive
66 which is fastened
above the carriage. The cylinder is provided in the shown example with a piston
rod
62 which is also designated as a rotating shaft about which the wound
lap W is rotated.
A horizontally aligned receiver
63 is attached at the end of the rotational
shaft
62, which receiver projects in the shown example into the free space
of the tube of the wound lap W resting on trough
50.
As is shown in FIG. 6, sensors S
1 and S
2 are applied in the zone
of the trough
50 and in the end zone of the cross conveyor
12 in
order to monitor the presence of a wound lap W or W′.
FIG. 7 further shows a drive
75 which drives the deflection pulley
77
of belt
14 via the drive connection
76. The deflection pulley
77
is held in the frame
78 which rests on the floor.
The drive
75 is controlled through the control unit S which also controls
the preparatory machine
1 and the movements of the rotating apparatus
60.
The signals S
1 and S
2 are sent to the control unit S for evaluation.
Based on the position A (FIG. 6) of the rotational shaft
62, the mode
of operation of the apparatus is described below:
The control unit S is reported by sensors S
2 that no wound lap W′
is located any more at the transfer location (shown with the broken line). The
wound lap W is lifted by cylinder
65 by means of receiver
63 by a
certain amount, so that it no longer rests on trough
50. Thereafter carriage
68, and thus the receiver
63, is displaced to position B by a displacement
element (not shown). The rotation of the wound lap by 90° (see double arrow)
occurs thereafter by means of the rotational drive
65 and the rotatably
held cylinder
65. The wound lap is now lowered by means of cylinder
65
until it rests on the conveyor belt
14. This is then reported by sensor
S
2 to the control unit S. Once this process is completed, the control unit
sends a signal to the drive
75 which puts in motion the deflection pulley
77 and thus the conveyor belt
14 in the direction of the arrow until
the new wound lap has been displaced by a respective winding division and sensor
S
2 reports again that the receiving place on the conveyor belt is once again
free. In order to monitor the precise winding movements on the conveyor belt there
are further sensors (not shown). During this displacement of the new wound lap
via the conveyor belt, the receiver
63 has become free again, as a result
of which the same is swivelled back in the opposite rotational direction. From
this position (B) the receiver
63 can be displaced via carriage
68
to position A again once the sensor S
1 reports that a new wound lap W is
present on the trough
50. The described process can thus start anew again.
Once a complete group of wound laps WG is present on the cross conveyor
12
it can be received by the conveying system (not shown).
The embodiment of FIG. 8 corresponds substantially to that of FIG. 6, with only
three further receivers
63a,
63b and
63c
being fastened to the rotational shaft. This device allows omitting the additional
reversing movement of the rotational shaft after the delivery of the wound lap
W to the conveyor belt
14, as was necessary in the aforementioned apparatus
according to FIG. 6. The other movement sequences are the same, so that they need
not be described here again.
Once the wound lap W deposited on the conveyor belt
14 has been further
conveyed by a winding division, the rotating apparatus can be displaced in this
case (FIG. 8) without any further rotational movement in the direction towards
position A in order to receive a new wound lap W there.
With the proposed apparatuses it is possible to provide a simple and flexible
adjustment to the different line-ups of the machines in the spinning room, thus
always ensuring the correct feed of the wound laps in the combing machines. This
concept allows incorporating combing sections in existing plants without having
to re-organize the entire machine outfit.
*
