DE1276418B - Device for the continuous winding of web-shaped material onto winding cores - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY GERMAN PATENT OFFICE Int. Cl .:

B 65h

EDITORIAL

German KL: 47 k -5/10

Number: 1276418

File number: P 12 76 418.0-53 (S 106 461)

Filing date: October 12, 1966

Opening day: August 29, 1968

The invention relates to a device for continuously winding up web-shaped material Winding cores with the help of a step-by-step rotatable swivel frame with radial mounting slots for the winding cores are fed to a winding station and when winding on two driven rollers rest, while a third roller movable to these rollers the winding presses, with a cutting device separating the web from the respectively finished roll and a device for fastening the beginning of the new length of material is provided on the new winding core.

In known devices of this type, a knife is provided which can be displaced in its longitudinal direction, that separates the incoming web from the already completed lap. Downside to this known device is that a movable cutting device is not just a relatively requires a lot of construction work, but also requires a control for the knife leading to such a exactly specified time takes effect.

The object of the invention is to improve a device of the type mentioned in such a way that the cutting process is inevitably linked to the movement processes that occur anyway and so that the web is always cut at the right moment.

In a device for the continuous winding of web-shaped material, it is important to to attach the new beginning of the web reliably and with simple means to the freshly wound core. This and the aforementioned object are achieved by the invention in that the Cutting device from a mounted near each receiving slot on the swing frame fixed knife and a co-operating, stationary knife exists that, related on the movement of the finished lap, arranged behind the winding station outside the frame is, and that the device for securing the beginning of the material web from one between the driven Rollers at the winding station can be moved through, in a manner known per se, in the one on the winding core provided slot insertable tongue is formed. This creates a separation at the same time the web running on the full roll and a safe introduction of the new web beginning into the reached new winding core, the required facilities are simply built and they have little space claim.

It is already known, in a device for automatic winding as a winding core, a device for continuous winding
from web-shaped material to winding cores

Applicant:

Societe d'Etudes de machines speciales, Paris

Representative:

Dipl.-Ing. O. G. Beil, patent attorney,

4000 Düsseldorf, Kreuzstr. 32

Named as inventor:
Edward Albert Breakker,
Edouard Roger Armelin, London

Claimed priority:

Great Britain October 13, 1965 (43 398)

Cardboard tube into which a knife that can be moved back and forth is first inserted into a narrow, cuts in the circumferential direction of the slot. If then the beginning of the winding material on the sleeve is placed and the knife is moved against the slot again, the beginning of the product slides into the opening of the sleeve, which at the same time folds up in a V-shape. This known device can only be used with very narrow good webs. She also needs a special knife for cutting through the goods after a sleeve is fully wrapped.

During the insertion of the new beginning of the material web into the slotted winding core, this must be done it must be ensured that the winding material that is still being delivered does not go any further with its front end advances, otherwise it cannot be inserted into the slot. This is why the The invention also provides that in front of the winding station on the trajectory of the incoming Winding material arranged when cutting through the web and when attaching the beginning of the web to the winding core closable braking and holding stop is arranged.

However, it is not enough just to hold the web during the core change, but continue to do so Delivered web must be briefly picked up by a tensioning device. Since the one in front The beginning of the web has already passed over the point during the special arrangement of the knives is, at which the beginning must be inserted into the new winding core, is after a

809 598/269

Another useful embodiment of the invention in front of the braking and holding stop one of two Rolls existing clamping device arranged, which can be triggered by a during the cutting process Lock is held, the triggering of the braking and holding stop and the tensioning device so formed is that the web prior to the closing of the stop by the tensioning device in the for insertion is withdrawn in the next winding core required position. The rollers of the tensioning device can be freely rotatably mounted at the ends of a spring-loaded, pivotable arm.

The invention is explained in more detail with reference to the drawings. Show it

Fig. 1 to 11 in a schematic representation the Swivel frame of the device according to the invention in its different, during the operational sequence occurring positions,

F i g. 12 and 13 are front and side views of the device controlling the third drive roller, and ao

14 shows a vertical section through the swivel frame.

The swivel frame shown in FIGS. 1 to 11 consists of two side plates which are connected to one another and each of which has six overlapping slots 23 extending radially inward from the edge and serving to accommodate the winding cores designated by M.

The winding cores each have a diametrically continuous slot in which the start of the winding Good is attached. The swivel frame moves gradually by 60 ° after each winding process turned further so that the empty winding cores reach the winding station one after the other, which is arranged at the lowest part of the swivel frame. The empty winding core is here attached to a Passed leadership when he came out of the slots in which he passed through the overhead Part of the swivel frame lies, rolls out.

At the in F i g. 1 shown device is the material web to a lap of almost final Size wound up. The web and the roll are adjacent to the outside of the roll Rolls transported. The reel 10 being manufactured rests on two drive rollers 11 and 11 12 and touches a third roller 13 lying on the top of the roll, which ensures a good system on all rollers.

The material web comes from a roll (not shown) and runs over two pivotably mounted rollers 14 and 15, is then guided over two further rollers 16, goes between two braking or holding elements 17 and 18 and runs over a pivotably mounted tensioning roller 19 to the winding.

When the roll 10 is completed in the desired size, the processes begin again which ejected the finished lap with the core, severed the material web and wound a new core is started. As can be seen from FIG. 2 results, a locking member 20 of a Geneva cross drive rotates from a recess 21 in the swivel frame 22, so that the swivel frame is rotatable. F i g. 3 shows that the swing frame begins to rotate as soon as it is unlocked in the manner explained is. According to Figure 4, the locking member 20 of the Geneva cross drive completes a 180 ° rotation and stops moving, causing the swing frame is now fully released. At the same time the drive rollers 11,12 and 13 of their Drives are switched off and stop. The movement of the swivel frame moves the Winding, based on F i g. 4, to the left, but the web is still connected to the lap.

Upon further rotation, in which the arrangement takes the position according to FIG. 5 reached, the roll or the rolls Winding core from the slot 23, in which it was previously located in the swivel frame, and moves away from the latter. As the swivel frame continues to move, an attached to the swivel frame goes Knife 24 close to a stationary knife 25 arranged outside the Ramhens; here the good web is severed. As soon as this happens, the movable part 17 pushes the Braking and holding stop 17,18 the good web against the counter stop 18, so that the good web on their front end is fixed. At the same time, the pivotable rollers 14,15 begin about their pivot axis 26 to rotate and thereby record the following length of good, as the good path is constantly is funded.

From Fig. 6 shows that the part of the material path that lies in front of the braking and stopping stop 17, 18, is withdrawn from the fixed knife 25 by the downward movement of the tension roller 19. the Until this stage, the tensioning pulley is held in its initial position by an unlockable lock. but now released. The movement of the tension roller 19 is finished when they are on a (not shown) stop comes to rest. The downward movement of the tensioner pulley is on the retractable one Length of the good web matched that the end of the good web at the end of the retraction process lies exactly above the drive roller 11. F i g. 6 also shows that the next, empty winding core M has now come into contact with the drive roller 12 and is in readiness for Implementation of the wrapping process is located. The locking member 20 of the Geneva cross drive also has started to turn into the next, incoming return 21.

In the position according to FIG. 7, the rotary movement of the swivel frame has ended, and the locking member 20 of the Maltese cross drive has already rotated so far into the recess 21 that the swivel frame can no longer perform any rotation.

F i g. 8 shows that the locking member 20 has now completed its rotation and holds the swivel frame in place by fully engaging the recess 21. The drive roller 13, which moved downwards when the previous, full lap was released, now lies against the still empty lap core and presses it in turn against the drive rollers 11 and 12 below of the web section to be rewound into the slot 30 of the empty core M is used, its upward movement started. According to FIG. 9, the still empty winding core M is brought into the position required for inserting the beginning of the new winding material section with the aid of the insertion tongue 28 by a device not shown. This device consists of a lever with a control surface which is brought into contact with two rollers arranged at a distance and diametrically from one another at one end of the winding core. The rollers come with the control surface when the swiveling

Claims (1)

5 6 frame in contact. As a result, the roller 13 is also driven at the same time. This earth Winding core in the required winding position in follows via three endless chains, which over entspredem Moment in which he reaches the winding station, corresponding sprockets are out. The chains are with brought. Then the control surface is designated except for Beruh 50, 51 and 52. The drive for the roller tion brought with the rollers, so that the winding core 5 13 is designed so that the roller with the same Umsich can rotate freely during the wrapping process. speed as the other drive rollers In the illustration according to FIG. 9 the insertion tongue 11 and 12 is rotated. shown fully inserted into the slot 31. At the- The up and down movement of the roller 13 With this movement it starts the new winder- is loaded by two hydraulic dampers 53,54 kelgut section with. well-known design dampened. The dampers are with In the situation according to FIG. 10 is the insertion process with the help of brackets 55,56 and spacers ended and the tongue 28 withdrawn. The to 57,58 with extensions 59,60 of the levers 31 and Drive pulleys 11 and 12 have begun to turn into 32 connected. The hydraulic dampers take care hen. During the first moment of the winding-up, that against the upward movement of the roller ment remains the braking or stopping stop 17, 18 15 13 a resistance occurs. Part of the down still closed. Through the beginning of the rotation of the directed, on the one in the making The winding core is therefore initially the force exerted in front of the winding comes from the Part of the material web is tensioned, causing the tension pulley to dampen. You also have the task of 19 is moved back to its upper starting position. to dampen the downward movement of the roller when As soon as the tension roller 19 has reached this position, the fully wound roll of the machine is omitted the already mentioned lock. is taken. The roller 13 therefore comes to the As can be seen from the illustration according to FIG. 11, the finished roll is not removed earlier in its have now the parts 17 and 18 of the braking starting position, than until a new winding core is ord- or holding stop away from each other, and which has been properly attached. The roller 13 the meanwhile due to the rotation of the rollers 14 25 therefore does not hit the with any appreciable force and 15 empty winding cores received about their common axis. The length of the web is wound up first. In Fig. 14 the winding station of the machine is in the winding process is now continued for so long, further details are shown. The wicker egg until the state according to FIG. 1 is reached again. core M, which is still unwound, is placed between the The upper drive roller 13 is mounted so that it holds 30 three rollers 11, 12 and 13. With the in the when moving upwards on the basis of the thicker drawing the position shown has the winding forward Wickels just started walking back a straight line. The transition from that lays. This ensures that the pressure of the fully wound on the still unwound core Windings on the drive rollers 11 and 12 are always the same - the good picked up by the rollers 14, 15 is already remain. The exerted by the roller 13 has been wound down 35 so that the rollers in normal directions The pressure is based in part on the self-position and the brake stop is weighted at 17.18 the roller and the measuring device connected to it is open. mechanism as well as on the resistance that the roller to which the rollers 14 and 15 supporting arm and its drive mechanism as it moves, engages a spring 61. The fixed stop 18 generate at the top as the winding diameter increases. 40 is with a stationary part of the machine frame This resistance results from a damping connected, while the other part 17 to one device which is pivotable on the Me- shaft 62 holding the roller 13 and thereby between brake mechanism is provided. Position and release position is movable. the The mechanism that carries the roller 13 and in the tensioning roller 19 is pivotable about a shaft 63. on holds their position is shown in FIGS. 12 and 13 of the shaft 63 is one provided with teeth 65 posed. The roller 13 is fastened between the ends of two washers 64, with which a pawl 66 in FIG parallel lever 31 and 32 mounted, which comes into engagement. The pawl 66 forms the lock, other ends on two likewise pivotable handles which hold the tensioning roller 19 in its upper position. the leg 33 and 34 are hinged. When the roller 13 pawl 66 is pivotable about a shaft 67 and becomes is displaced upwards, the levers guide one forward 50 each time one passes by the swivel frame given rotary movement. The movement of the he-attached projection, the one on the opposite at 31 and 32 to levers 33 and 34 the end of the pawl strikes from the teeth at 65 one via a chain wheel 36 on the lever 31 and one chain lifted. This, as mentioned, creates the role tenrad 37 on a shaft 38 guided endless chain 19 released so that they move down 35 determined. When the shaft 38 rotates, 55 and the front part of the new web section rotates a sprocket, which is also attached to this shaft, can withdraw from the knife 25. 40 with and transmits its rotation to a with The insertion tongue 28 is in Fi g. 14 in back- Gear 41 connected to a lever 42. Shown in the opposite position. The tongue is using The opposite end of the lever 42 is actuated with a roller of an eccentric cam 70. To the 43, the control movement is transmitted between two guide plates 44 60 at 72 and 45 is out. The plates 44 and 45 are pivotable on the lever with its control cam a lever 46 is attached, which in turn holds the tongue 28 at one end facing away from it Shaft 38 is attached to concentric tube 47 and intermediate piece is hinged.
with which the two levers 33 and 34 are also connected are. When the levers 31 and 32 their angular position 65 claims:
change, the angular position of the also changes Levers 33 and 34, so that the roller 13 is the desired 1st device for continuous winding Moves in a vertical direction. none of web-shaped material on winding cores that with the help of a step-by-step rotatable swivel frame with radial receiving slots for the Winding cores are fed to a winding station and when winding on two driven Rollers rest while a third roller, movable to these rollers, presses the roll, wherein a cutting device separates the web from the respectively finished roll and a device for fastening the beginning of the new length of material is provided on the new winding core is characterized in that the cutting device consists of a near one fixed knife (24) attached to each receiving slot on the swivel frame (22) and one with it cooperating, stationary knife (25), which, based on the movement of the finished Winding, is arranged behind the winding station outside of the frame (22), and that the Device for fastening the beginning of the material web from one between the driven rollers (11,12) can be moved through at the winding station, in a manner known per se in the on the winding core (M) provided slot insertable tongue (28) is formed. 2. Apparatus according to claim 1, characterized in that in front of the winding station arranged on the path of movement of the incoming Wikkelguts, when cutting the web and when attaching the beginning of the web to the winding core (M) closable braking and holding stop (18) is provided. 3. Apparatus according to claim 1 and 2, characterized in that before the braking and Holding stop (18) a clamping device consisting of two rollers (14, 15) is arranged, which is held by a lock that can be released during the cutting process, the release the braking and holding stop (18) and the clamping device (14,15) is designed so that the web before the stop is closed by the tensioning device in the for insertion in the next winding core required position is withdrawn. 4. Apparatus according to claim 3, characterized in that the rollers (14,15) of the clamping device are freely rotatable at the ends of a spring-loaded, pivotable arm. Considered publications:
German Auslegeschrift No. 1175 960;
U.S. Patent No. 3,009,666,3 066,883. In addition 3 sheets of drawings 809 598/269 8.68 © Bundesdruckerei Berlin