DE7728223U1 - MULTIPLE WRAPPING MACHINE - Google Patents

Description

"Multiple lap turning machine ¹¹

The innovation relates to a multiple lap turning machine with a pressure roller system through which during the winding process a constant line of contact pressure is exerted on the roll. This winding technique is very important in winding of tension-sensitive material at high speed. Without a pressure roller, too much air is wrapped between the layers and the roll under these conditions tends to be unstable, i.e. to move sideways or telescoping.

It is essential that the contact line pressure is not only exerted while the winding is in the winding position but also during the roll change, i.e. when moving the almost full roll from the winding position in the removal position, with still on the almost full winding is continued to be wound.

It is known to use a pressure roller system which can be pivoted with the winding star for this purpose, in which the pressure rollers press from above on the roll, the weight of each pressure roller is balanced by a counterweight and the pressure of the Pressure roller on the reel is generated by a pneumatic cylinder supported on the reel spider.

This device is disadvantageous insofar as the pressure roller system coupled to the winding star when changing rolls

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has a disruptive effect and that the pressure rollers are not in contact with the contact point of the winding material on the winding on the winding, but far from it, so that they cannot prevent the winding material from running onto the winding Air is wrapped with.

The object of the innovation is to avoid these disadvantages and to create a device that works when changing roles does not interfere and maintains a contact line pressure both during nappy changing and during the turning process prevents air from being entrapped.

The innovation that focuses on a multiple lap turning machine with a constant or with a certain characteristic controllable during winding and during the turning process Contact pressure on the pressure roller ζ ensyste.m exerting the roll, consists in the fact that a pressure roller, both during winding and during the turning process, at or near the approach point of the wound material rests on the roll on the roll, from the free ends of a pair of levers of a toggle lever system is carried, which is attached with its other ends on a pivot shaft arranged below the winding star is that can be coupled to the turning drive during the turning process is.

The advantage of the innovation is that the arrangement | ] carried out of the pressure roller system below the winding Sterns of the roller \ alternately without obstruction by the Druckwalζenzystem and may already at the nip point of the winding material on the winding air pockets and further Paltenbildungen, constrictions and bleeding can be prevented the material web.

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By arranged between the levers of the toggle system Pneumatic cylinder, a preselectable pressure of the pressure rollers can be exerted on the roll.

After reaching the removal position of the full roll and uncoupling of the toggle system the printing roller can be swiveled back to the system with the new empty roll by the turning drive.

An exemplary embodiment is shown below with reference to the drawing the innovation described.

Fig. 1 shows schematically a side view of the winding machine with the pressure roller system according to the innovation in the winding position,

Fig. 2 shows the winding machine and the inventive device in the removal position of the full lap »

Fig. 3 shows a front view of the winding machine and the V03? direction after the innovation.

The winding star 4 is sent with three winding points 1, 2 and 3 stored at 5 and it is driven via the chain drives 6 and 7 of the turning motor 8 when changing roles. With the double chain wheel 9, the pivotably mounted shaft 11 can be coupled via a magnetic coupling 10, on which one of the pairs arranged Toggle levers 12,13 and 14-, 15 existing swing frame is attached. Between the free ends of the levers 13-15 is a pressure roller 16 freely rotatable. Between levers 12, I3 and 14, 15 each have a pneumatic cylinder 17 or 18 attached; these pneumatic cylinders are used to generate the pressure of the pressure roller 16. On the pivot shaft 11 there are also two

Levers 19 and 20 attached, each with a pneumatic cylinder 21 and 22 are coupled.

The web 25 is the winding 23 in. The winding position a horizontally movable contact roller 24 which moves backwards when the lap increases and which is directly at the point of contact the web of material on the reel 23 rests on this and in particular when the web of material is applied to the empty reels prevents air from being entrapped. The pressure roller 16 lying close to the contact roller 24 on the roll 23 is activated by means of the pneumatic cylinder 17, 18 with constant or after a Characteristic controllable contact pressure pressed against the roll. As long as the roll 23 is in the winding position, the pivot shaft 11 is decoupled from the turning motor 8 and the lever 12 and 14 of the toggle lever system are held in the position shown in FIG. 1 by the pneumatic cylinders 21, 22.

When the winding 23 is almost fully wound, the winding star becomes 4 from the turning motor 8 via the chain drive 6, 7 by 120 Turned counterclockwise, whereby the almost full roll is moved into the removal position. When the turning motor is switched on 8, the pivot shaft 11 is coupled to the reversing motor by means of the magnetic coupling 10, and that of the two toggle levers existing swivel frame pivots the pressure roller 16 synchronously with the almost full lap on which the winding continues. The pressure roller 16 remains permanently at the point where the web of material rests on the roll in contact with the latter and prevents it as a result, air pockets during the turning process. During the pivoting of the pivot frame with the pressure roller 16 works the turning motor against the actuating cylinders 21, 22.

When the lap has reached the Abnahmeεteilung, the turning motor 8 stopped and its coupling to the pivot shaft 11

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is canceled. The actuating cylinders 21, 22 pivot that Toggle system and the pressure roller 16 back to the starting position, in which the pressure roller 16 comes to rest with the new roll in the winding position.

7T28223 2§ «.78

Claims (3)

'' ·· IIIIMII • · t ο a • · · I a i Maschinenfabrik Stahlkontor Weser Lenze KG Aerzen 2 PW 260 12. 9. 1977 Protection claims: 1. Multiple winding machine with one during winding and during the turning process a constant or with "certain" Characteristic controllable contact pressure on the pressure roller system exerting the winding, characterized in that that a pressure roller (16), which both during winding and during the turning process at or near the approach point of the winding material on the winding (23) rests against it, from the free ends of a pair of cobels (13, 15) of a toggle lever system is carried, the other ends of which on a pivot shaft (11) arranged below the winding star (4) is attached, which can be coupled to the turning drive (turning motor 8) during the turning process. 2. Multiple lap turning machine according to claim 1, characterized in that that to generate a preselectable pressure of the pressure roller (16) between the levers (12, 13 or 14, 15) of the toggle lever system arranged pneumatic cylinders (17, 18) are provided. 3. Multiple lap turning machine according to claim 1 and 2, characterized in that by means of two with one each -2- • ··· · ΓΓ · 4 « _β - 2 - Adjusting cylinder (21, 22) coupled on the pivot shaft (11) lever attached to the toggle system (19 »20) after reaching the removal position of the full roll and uncoupling of the Swivel shaft (11) from the reversing drive (motor 8) the pressure roller (16) to the system with the new empty roll in the Starting position is traceable.