SU1673497A1 - Device for continuous delivery of rolled material - Google Patents

Abstract

The invention is intended for use in technological lines for the production of roll roofing and waterproofing materials, and can also be used in other industries for the free unwinding of roll material. The purpose of the invention is to increase labor productivity by automating processes, reducing metal consumption, simplifying the design, facilitating maintenance and improving the reliability of the device. On the rotary table 3 with a vertical axis and a rotary actuator, the clamping heads 8 are rotatably located along the chords of its circumference; they can be swiveled to receive and drop rolls, as well as adjustable brakes pressed to the periphery of the rolls of material 6, on the frame of which there is a stop that interacts with limit switches 14 and 15 located at each clamping device. The switch 14 is electrically connected to the drive of the lifting winch 21, and the switch 15 is connected to the drive of the table 3. The device also has a machine 17 for connecting the ends of the material. 3 il.

Description

The invention relates to the production of roll materials with base unwinding, in particular in the manufacture of felt material.

The purpose of the invention is to increase productivity.

Fig. 1 shows a part of the processing line with a device for the continuous feeding of web material; 2 shows a device for unwinding, side view; on fig.Z - TQ, top view.

The device includes an unwinding machine, on the basis of which 1 a rotary table 3 is mounted in supports 2 with a vertical axis of rotation and an actuator including a gear sector 4 meshed with a rail 5 connected to the rod 6 of the rotary table piston cylinder 7. The length of the piston cylinder 7 provides a reversible stroke of the rod 6 until it stops, sufficient to rotate the table clockwise opposite clockwise by 180 ° C

On the turntable, there are two pairs of clamping heads (centers or lunettes) 8 located along the chords of the circumference of the table 3 against each other, in which the rolls 9 of unwinding material are installed. The necessary tension during unwinding of the material is provided by an adjustable brake 10 pressed against the periphery of the roll. To install a material roll 9 without a lifting mechanism, the center pillars (lunettes) 8 can be tilted by means of cylinders 11.

On the single-arm lever 12 of the brake 10, an emphasis 13 is installed, which interacts with sensors in the form of limit switches 14 and 15. The brake 10 is pressed against the surface of the roll 9 by means of a power cylinder 16.

The device also has a machine 17 for joining the ends of the material 9 and a loop magazine 18 for the material 9. Consisting of stationary 19 and movable 20 rollers connected to the drive hoist 21.

The device is equipped with a common automatic drive control system

heads 21 and turntable 3, the two end switches 14 and 15 of which are installed for successively interacting with the stop 13 of the single-arm lever 12 of the means of tracking the diameter of the unwinding roll. The switch 14 is electrically connected to the winch drive 21, and the switch 15 is connected to the turntable drive 3,

The device works as follows.

0

5 G

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50

five

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five

With the help of a lifting mechanism (not shown) or by tilting the supports of the lunettes 8, the roll 9 of the material to be unwound is set, either in the centers or (if there is a metal axis in the roll) in the lunettes 8 at the loading position. A brake 10 is pressed against the forming roll to ensure the tension of the material to be unwound.

The actuator turns the table 3. The stroke of the rail 5 connected with the rod 6 of the piston cylinder 7 up to the stop, the gear sector 4, and with it the table 3, are turned by 180 °. Unwinding material roll 9 is transferred to the working position. The unwinding of this roll begins, for example, by pulling a strip of material with another machine of the processing line, for example, with rollers (not shown).

At the same time, under the action of the piston cylinder 16, the brake 10, pressed against the surface of the roll 9, gradually decreases to the axis of the clamping head 8 as the diameter of the roll decreases when it is unwound. The stop 13 located on the lever 12 of the brake 10 reaches the switch 14 and, It sends a signal to turn on the store 18 to collect a quantity of material sufficient for the smooth operation of the line when changing rolls and connecting their ends on the connecting machine 17. At this time, in the loading position, they are installed in centers or lunettes nother roll of material.

When at the working position the unwinding of the roll is completed, the brake 10 has already approached the axis of the clamping device, and the stop 13 has reached the switch 15 and, acting on it, sends a signal to activate the reverse of the table rotation drive 3 and retract the brake 10 to the reverse. with rod 6, table 3 is rotated 180 ° back. A new roll arrives at the working position for unwinding, and the free centers (lunettes) at the loading position are ready to accept the next roll. Such miniar turns of the table 3 are repeated cyclically.

The positive effect of the proposed device is to increase labor productivity by automating processes, simplifying the design, reducing metal consumption, increasing reliability and facilitating maintenance.

Claims (1)

Invention Formula A device for the continuous feeding of web material, comprising an unwinding machine in the form of clamping heads for coils mounted on a drive table with a vertical axis of rotation, a machine for connecting the ends of the material and a loop store of material consisting of fixed and moving rollers, the latter of which are connected with a driving winch, characterized in that, in order to improve the performance of the table and the winch. It has the means tracking the diameter of the unwinding roll, including a single-arm lever with an emphasis on the free end, a ram to press the lever to the roll and two horses of i-switches for series interaction with the stop, the first of which is electrically connected to the winch drive, and the second to the drive turning the table GO 2 Fig.Z