SU114806A1 - Apparatus for controlling the speed of movement of a material and its tension during winding into a roll on an axial inlet - Google Patents

Description

The invention relates to devices for simultaneously maintaining a constant linear speed of tension of various materials ;. when winding into a roll on an axial reel.

The devices known for this purpose, made in the form of a compensating coupling consisting of two coupling halves and an average movable cross, do not ensure the simultaneous maintenance of a constant linear velocity and tension of the material.

In the described device, this disadvantage is eliminated by the fact that one; from the coupling halves, it is equipped with a spring-type Dnnometer with a PSR1; Esh, Ayush, Imis electrical contacts included in the automatic drive circuit in such a way that when the electrical contacts are triggered, the linear velocity and the tension of the material are simultaneously maintained.

FIG. 1 shows a general view of the compensating coupling; in fig. 2- sectional coupling.

The compensating coupling, made of two half couplings / and 2, is a carrier 3, on the hub of which a frame 4 is freely mounted. The frame and the water are connected in rotational motion with a diameter diametrically opposite to the symmetrically located elastic chart-link spring-dynamometer. consisting of tippers are rotary, ti 6, shackles 7, axle 8, slider 9, round nut 0 and dowel sleeve 11. In addition, the frame and the driver are connected to each other with two shoulders lever 12 through axes 13 and 14 so that the npvi relative offset ki and drove dvuilech; The th lever turns together with the axis 14 connecting it with the frame 4. In this case, the second two-armed lever presses the button of the limit switch 15, closes it by moving the electrical contacts, and then turns the limit switch by some angle relative to the ocii roller 16 in

No. 114806

depending on the magnitude of additional compression of the traction springs 5. To the roller 16 is attached a lever 17, by means of which the limit switch can be set to any position. In order to disconnect the shafts at rest and compensate for their displacement in the radial direction during operation, a device in the form of a movable cross 18, elastically connected — centered relative to the axis of rotation of the frame 4 with springs 19 and guides 20 was used.

Before starting work on winding material into a roll, it is necessary to put the limit switch with the lever into the initial position, i.e., the position in which it would touch its button to close (it and its two-lever lever changing it. Principle of simultaneous automatic maintenance of linear speed and tension) paper or other type of product when winding into a roll on an axial roll with the use of the described design of the coupling, in which there is a movable limit switch, is that as the diameter increases The coil simultaneously adjusts the load and speed of the drive electrode L1 of the axial overturning by changing the current in the winding of the motor / k, h, the electric motor, and the amount of draft of the clutch compression springs.

To enable the end switch to move into the circuit of the electric drive, a time relay with a normally open contact and a time delay when the circuit is closed is activated. After the contacts of the end switch are closed, the time relay is turned on; the relay is activated, closes its normally open contact with time delay and turns on the servomotor of the drive motor excitation system. The springboard reduces speed, whereby the load on the clutch springs decreases and. they are somewhat divergent, in connection with which the contacts of the end reader are disconnected and the engine continues to operate at set speeds at the new load corresponding to the new torque and new bottom of the roll meter.

As soon as the resistance moment increases due to a further increase in the diameter of the roll, the contacts of the limit switch re-close and everything repeats until the roll is wound to the required diameter value, after which the web breaks off and the load is removed. In this case, the springs return to their original position, and the limit switch remains in the same position in which it was installed.

In order to carry out the predetermined tension mode of the material being wound into a roll as its diameter changes, it is necessary to calculate the springs of the dynamometer correspondingly with the predetermined tension mode of the material.

The subject invented and

A device for controlling the speed of movement of a material and its tension when winding into a roll on an axial inrush, made in the form of a compensating coupling consisting of two coupling halves and an intermediate moving cross, elastically flexible and centered relative to one of the coupling halves, characterized in that at the same time maintaining the constant speed and tension of the material during winding in, one of the coupling halves is equipped with a spring dynamometer with moving electrical contacts included in the automatic circuit Regulating the drive in such a way that when the electrical contacts are triggered at the same time, a constant is maintained (the speed and tension of the material are many).

5 Yu P

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