SU111917A1 - Device for sorting mail and other items - Google Patents

Description

As is well known, for sorting of mailings (letters, postal parcels, postpackages, etc.), devices are used that have a conveyor belt, to which sorted items are fed at certain intervals, and gateway devices that open at that moment or another gateway is suitable subject addressed to this gateway. To control each of the gateways, delay devices are used: mechanical, relay, or made on telephone searchers, started at the moment of delivery of the item addressed to this gateway to the conveyor.

However, the known devices of this kind have a number of disadvantages. Mechanical delay devices, as well as devices containing telephone finders, wear out very quickly and become unusable. Relay devices are very bulky and contain a large number of relays.

the number of which is growing rapidly with the increase in the number of addresses.

To eliminate these drawbacks, increase device reliability and reduce operating costs, it is proposed, according to the invention, to implement delay devices in the form of shift registers of transformers. These transformers are constructed using ferrite cores with a rectangular hysteresis loop and are controlled by current clock pulses, arriving synchronously with the conveyor movement.

To reduce the number of elements in the delay devices, they can be made as a general device, which is a ruler composed of several shift registers.

FIG. 1 shows the electrical circuit of the proposed device.

A device for sorting mailings contains a belt conveyor /, to which objects 2 to be sorted are fed. Gateway devices 3 are located near the conveyor, opening at the moment of approach to them of the item addressed to this gateway.

Delay devices, implemented in the form of shift registers of transformers 4 with cores of ferrite or other material with a rectangular hysteresis loop, are used to control the gateways; the number of these delay devices must be equal to the number of gateways.

Each transformer 4 has three junction - primary, secondary and clock. Their primary and secondary windings are connected through valves 5 and corrective active capacitive cells 6, so that they form a number of chains. The primary winding of the first transformer of each chain is connected with a code corresponding to: 1 avishi 7 on the operator’s console 8. The secondary winding of the last transformer of the chain is connected to the relay device 9, which includes the gateway opening mechanism 10. The clock windings of all transformers are connected in series (or in parallel) and synchronously with the movement of the conveyor belt / through them, the clock pulses of the current produced by the sensor Y / are transmitted.

The proposed device operates as follows.

At the time of filing for the conveyor belt I of the next item to be sorted, the operator presses the key 7, corresponding to the gateway to which this item is to be sent. In this case, the magnetizing current passes through the primary winding of the first transformer 4 of the corresponding chain, as a result of which the cores of the remaining transformers of this chain under the action of the current clock pulses are magnetized synchronously with the movement of the sorted object on the conveyor belt. When the magnetization impulse reaches the end of the chain.

the relay device 9 is activated, which includes the mechanism for opening the gateway, which is disconnected at the moment when the object addressed to it fits.

The proposed device can be built but the principle of stepwise sorting (f | ig. 2).

In this case, when moving along the conveyor of each item being sorted, it is not a single magnetization impulse (in a separate chain for each slot), but a code group, which enters the ruler 12, which consists of several chains, common for all gateways. Each gateway corresponds to a specific code combination.

The links of the ruler are connected to the descramble circuits 13, which react to the code combination corresponding to this gateway. The decryption circuit acts on the relay device 9, which includes the opening mechanism of the gate. In such a system, the number of cents in the code line should be equal to the number of bits of the number of gateways in binary calculus, and the number of transformers in each chain - the number of gateways L The total number of transformers will be m.N.

If necessary, the code rule is executed with branches corresponding to those of the conveyor.

Subject invention

Claims (2)

1. A device for sorting mail and other items, having a straight or branched conveyor with gates, gate opening mechanisms and delay devices triggered when the next sorted item is fed to the conveyor and including gate opening mechanisms so that the corresponding gateway opens at the moment when the subject addressed to it is suitable for it, characterized by that. that, in order to increase reliability and reduce maintenance costs and reduce overall dimensions, the delay devices are made in the form of shift registers of transformers built using ferrite cores with a rectangular hysteresis loop controlled by current clocks arriving synchronously with the movement of the conveyor. 2. The device according to claim 1, t / I, and with the fact that, in order to reduce the number of elements, a common delay device is used, made in the form of a ruler of several shift registers, into which at the time of supplying the next item to be sorted a code group corresponding to the selected direction is entered, and separate for each gateway of the decoder and actuation devices. i LA jo jo with: SV ;. 1/3 of U C ± D7 CJT1 /.