SU768673A1 - Apparatus for transporting ferromagnetic articles - Google Patents

Description

The invention is illustrated in the drawing, where in FIG. 1 shows schematically the described device; and in fig. 2 - block diagram of the device.

The device contains a frame 1 with brackets 2, on which electromagnets 3 and sensors 4 are positioned between electromagnets and transported by a continuous ferromagnetic object 5. The unit for connection to electromagnets is powered, its voltage in a predetermined sequence contains for each electromagnet 6 relay with two contacts 7 and 8, the supply voltage regulator, its voltage 9, connected to the corresponding electromagnet, and the above-mentioned gap sensor 4. The regulator 9 has a direct input 10, an inverse input 11 and a reverse feedback and 12. The apparatus is provided with a control bus 13 S., its signal is intended for specifying directions Shuffle, tim object 5. The number of electromagnets belonging thereto schimis elements is determined by conveying distance and the ratio between the weight of the conveyed object and the lifting force of the electromagnet. The working surfaces of the electromagnet poles lie in the same horizontal plane. The output of the gap sensor is connected to the relay coil and through its contact 7 to the feedback input of the regulator. The control signal bus through contact 8 of the f-ro relay of the electromagnet is connected to the direct inputs of the regulators of the supply voltage of the electromagnets with the numbers t + 1, i + 2, ..., p located on one side of the i-ro electromagnet, and with the inverted inputs of the electromagnet regulators with the numbers i-1, i-2, ..., 1, located on the other side of the i-TO electromagnet, the voltage on the bus can be positive, zero or negative.

The device works as follows.

In the absence of a movable object under the sensors at their inputs, the largest stresses correspond to the largest gaps. The contacts 7 of the relay are open, the supply voltage regulators have no voltage at the output, the windings of the electromagnets are not flowing around the current. If it is necessary to keep the object being moved in the non-idle state, the voltage on the control signal bus is zero. The voltages on the relays decrease, pins 7 and 8 are closed, through pins 7 the voltage of the gap sensors is applied to the feedback inputs of the regulators, the electromagnets are powered and keep the object on weight. Thus, the relays provide electromagnet switching on only if there is a transported object under the sensors.

Applying a positive voltage to a spine leads to a change in voltage on

direct and inverse inputs of the regulators and, accordingly, to an increase in i + 1-th gap and a decrease in i-1, which causes the subject to slide in the direction of the i + 1-th electromagnet. Since under the sensors t + 1, i, i-1 there is a ferromagnetic object, then, as in the case of holding the object in a stationary position, contacts 8 of the relay are closed and

positive voltage from bus through pin 8 of relay i. gets to the direct input of the controller with the number r + 1 and to the inverse input of the controller from the number t-1. Relay number i-1 is similar

provides the voltage from the bus through its pin 8 to the direct inputs of the regulators i and i + 1, and the relay with the number i + 1 through its contact 8 supplies the voltage from the bus to the inverse inputs of the regulators / and f-1. The resulting change in the task at the inputs of the various controllers will be different. On controller with number t + 1 it will increase (two signals to the direct input), on controller with number will remain unchanged (according to

one signal to the direct and inverse inputs), on the controller with the number i-1 decreases (two signals per inverse input). As a result, the object being moved is inclined (force

the interaction between the electromagnets and the object will have horizontal components), and the object will begin to move in the direction of the i + 1 electromagnet. After moving to the distance

between the two electromagnets, the i-1st electromagnet will turn on and go into operation / - | -2th, the movement will continue.

Movement in the opposite direction is similar.

when the polarity of the tire is changed.

Claims (2)

1.Tselikov A.I., Smirnov V.V. Rolling mills. M., “Metallurgists, 1958, p. 320-337. 2. US patent number 3771462, cl. 104-148, 11/13/73 - the prototype.