SU391884A1 - DEVICE FOR WRINKLING OF ROLL MATERIALS WHEN APPLYING COATINGS IN A VACUUM - Google Patents

Description

one

This invention relates to the field of vacuum coating.

A device for rewinding roll materials when applied in vacuum is known, which comprises a chamber, inside of which are receiving fender panels, cooling rollers and guide rollers, an electric drive and a mechanism for adjusting patching.

The proposed device differs from the known one in that the mechanism for adjusting the tension is made in the form of an intermediate link installed between the coil and the electric drive and representing the holder with the shaft connected by a spring element responsive to a change in the torque of the roll.

FIG. 1 schematically shows the proposed device for rewinding roll materials when applying coatings in vacuum, cross section; in fig. 2 — tension adjustment mechanism, slit; in fig. 3 - functional device diagram.

The device consists of a chamber / in which the receiving 2 and winding rollers 5 are located, the cooling drum 4 and the guide rollers 5; electric drive 6 and mechapism for tension control, made in the form of an intermediate link.

installed between the roll of material / and the actuator 6 and representing the holder 8 with the shaft 9, connected by a spring element 10, which reacts to torque measurement.

Chamber 1 is divided into two compartments - nanei coatings, in which the evaporator 11 is located, and rewinding.

On the case of the holder 8 fixed contact rings 12 with current collectors 13.

Slip rings 12 are electrically connected to a slider 14 mounted on the flange of the shaft 9. In the end part of the shaft 9, a clamp 15 is installed. Outside the chamber / arrangement

a comparison unit 16 and an electric adjustment unit 17.

The device works as follows. Using the lock 15, the slider 14 of the steam thermostat 18 is set to zero position. According to the availability of the working vacuum in the chamber and after putting the evaporator into operation / include a device for rewinding material 7. The material from the reel roller 3 passes the guide rollers 5, and then, rounding off the cooling drum 4, passes over the evaporator Y / and the parallel roller 2 is wound .

As the material is rewound, the diameters of the winding and i-roller rollers change, resulting in a change in torque. As the roll diameter on the take-up roller 2 increases, the torque increases. A change in the roller torque relative to the torque of shaft 9 of the electric drive 6 leads to a change in the position of the slider M on the rheostat 18. The displacement of the slider corresponds to the twisting angle of the spring element 10. The resistance change on the rheostat 18 is transmitted by means of current collectors 13 and contact rings 12 in the form of electric a signal to the comparison unit 16, and then to the adjustment unit 17 by the electric drive 6. At the same time, the drive 15 of the winding roller 3 operates as an electric brake with variable braking torque om due autonomous mechanism 19 for adjustment. In the reverse 5 10 20 operation, the operation of the device is performed in the reverse order. The subject of the invention is a device for rewinding roll materials when applying vacuum nipples, comprising a chamber within which take-up and take-up rollers, a cooling drum and guide rollers, an electric drive and a tension control mechanism are located, in order to improve the accuracy of the rewind control and improving the quality of the winding, the mechanism for adjusting the tension is executed as an intermediate link, set by the melada by the roll and the electric drive and representing s with the shaft connected by a spring element, which is responsive to changes in the torque of the roll.

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