SU140286A1 - Automatic feeder for conditioned reflex camera - Google Patents

Description

Automatic feeders for a conditioned reflex camera containing a contactor, a hopper, a metering device and a time relay, are known. ..

In the proposed automatic feeder, in contrast to the known ones, the metering device is made in the form of a cylinder with a piston located in the lower part of the bunker.

The piston is set in motion by P1) and the aid of an electromagnet and, when pressed, the switch can be installed in various positions relative to the cylinder.

Such feeding trough allows the amount of feed to be varied.

To avoid re-feeding during the period of one stimulus, the piston rod has 6jiOK-KOHTaKT, turning off the electromagnet power supply when the rod moves.

The drawing shows a schematic diagram,;. The terms of the automatic feeder.

The feeder has a bunker / in which the feed 2 is poured. In the lower part of the bunker there is a cylinder with a piston 5 and a rod. The rod is a continuation of the core 4 of the electromagnet. The coil 5 of the electromagnet is powered by direct current, obtained by converting alternating current 127 or 220 in the step-down transformer 6 and rectifiers 7. Thus, the electromagnet is connected to the positive stimulus circuit and the automatic feeder works only during the period of positive signals. The latter are included in the automatic reflex control camera.

If, in response to a positive signal, the experimental animal presses the contactor 8, then the circuit is closed on the primary winding of the transformer 6. From the secondary winding through the rectifier 7, the current enters the coil 140286-2 into the coil, 5. The electromagnet is activated, while the piston 3 pushes the feed, and the block contacts 9 are closed. The blocking pins 9 block the contactor 8 and the Lorshen 3 remains in its extreme position, then a positive stimulus is switched off. Investigation, the animal cannot receive a second dose of food during the period of action of the same signal.

When the irritant is turned off, the described circuit opens, the core 4 of the electromagnet returns to its original position under the action of a spring.

A time relay 10 can be connected to the circuit, which allows adjusting the feed delay time to b min. Time relay 10 is made in the form of an electric motor // with a gearbox and an adjustable contact 12 mounted on a turntable (gear wheel). When the animal is pressed on the second contactor 13, the electric motor is rotated // and. at the same time, the contactor 13 is blocked. When the rotary disk is rotated, the adjustable contact 12 closes the contact device 14 at the right time, so that the motor // turns off, turning on the electromagnet that controls the movement of the piston 3 and the feed 2 is pushed out of the bunker /.

Subject invention

Claims (2)

1. Automatic corsettance for the conditioned reflex camera, consisting of a circuit breaker, a bunker, a metering device and a time relay, characterized in that, in order to ensure that the amount of feed to be fed is variable, the metering device is designed as a cylinder located in the lower part of the bunker a piston that can be installed in different positions relative to the cylinder, set in motion by means of an electromagnet when the switch is pressed. 2. The automatic disturbance according to claim 1, characterized in that, in order to eliminate the possibility of re-feeding during the period of one stimulus, the piston rod has a blocking contact that turns off the power of the electromagnet during the movement of the rod.