SU1541123A1 - Device for discharging doses into packing machine - Google Patents

Abstract

The invention relates to a packaging technique, namely, devices for group preparation of doses, their selection and supply to a packaging machine, and is intended to increase the speed of the device and the efficiency of dispensing doses in group preparation. The aim of the invention is to increase productivity. A device for dispensing doses to a packaging machine contains feeders with a drive, preparatory dose buckets beneath them, electromagnets for their reversal, a receiving funnel located beneath the buckets with prepared doses, a conveyor with single containers. Each feeder has a prepared dose sensor connected to an autonomous meter. The movement of the conveyor is monitored by its movement sensor. The device is also equipped with a unit for sampling prepared doses, controlled by signals from sensors of prepared doses and a sensor for moving the conveyor. According to the received signals from the sensors, the sampling unit finds from the whole group a filled bucket and generates a signal for its unloading. At the same time, the sampling unit synchronizes the turning on and off of the corresponding electromagnets, turning, stopping and starting the drive of the feeder, performs correction of the action of the packaging machine in the absence of a full bucket. 4 il.

Description

The invention relates to a packaging technique, namely, devices for group preparation of doses, their selection and supply to a packaging machine.

The aim of the invention is to improve the performance of the metering device.

FIG. 1 shows the device in conjunction with a packaging machine, general view; in fig. 2 - the same, partial view in horizontal projection;

in fig. 3 is a block diagram of the electrical part of the device; in fig. 4 - block diagram of the sample.

A device for delivering doses to a packaging machine contains feeders 2 installed in dispenser 1, connected to autonomous drives 3, located under the feeders buckets 4 for the prepared dose, electromagnets 5 unloading them, continuous-action conveyor 6 with single containers 7 for dose, located under the general

N5 00

315

(The receiving funnel 8 of the dispenser 1 and associated with the packaging machine 9. Between the feeders 2 and the buckets C, there are sensors 10 of products, such as photoelectric, which are connected to counters 11. The movement of the conveyor is monitored by a dose delivery sensor 12, which is located on the packaging machine. 11 and sensor 12 are connected to block 13 of sampling prepared doses, which consists of a starting trigger 1, search generator 15, ring register 16, AND circuit 17, OR-NOT circuit 18, AND-NOT circuit 19, Time element 20, inverter 21, 22 trigger trigger and out This system is NOT-23, which is included in the common path of the fty unit, and also has separate Paths for each stream, including, AND-NOT 24, time element 25, and two amplifiers 26 and 27. Input trigger 1, AND 17 circuit and the MLI-HE 16 scheme constitutes a re-dose blocking system.

The outputs of block 13 sample prepared doses from the first amplifiers 26 are connected to the drive 3 of the feeder, and the outputs from the second amplifiers 27 are connected to the electromagnets 5 unloading k doses prepared in the buckets. The last output of the sampling unit 13 from the E5 output circuit is AND-NOT connected to the control unit of the packaging machine 9.

The device works as follows.

When the conveyor 6 moves and the tanks 7 arrive under the receiving funnel 8, the sensor 12 generates a conveyor movement impulse and the dose is ready to receive this capacity. The impulse of the sensor 12 enters the S input of the trigger 1A of the Prepared dose sampling unit 13 and transfers it into a single state. As a result, the search generator 15 is triggered, which sequentially switches the ring register 16. At the same time, the pulses of the sensor 12 trigger the time element 20, which produces a dose permitting signal, through the AND-HE circuit 19 arriving at the AND-HE circuit 2k in each path of the individual flow. In the case of the presence of a prepared dose in some ladle k, a single signal is generated at the output of the counter 11 of this flow, which is fed into the AND – K scheme of this path and to the amplifier 26, which

one

five

0

five

0

five

0 5 0

23 4

controls the switching off of the drive 3 of the corresponding feeder. Therefore, when a single signal arrives from the ring register, the third input of the NAND 2k circuit of this path will have single signals on all the inputs of the NAND 2k circuit and a zero signal is generated at its output indicating that the filled bucket k and the prepared dose are located. This signal is applied to the start of the time element 25, which sets the time required to deliver the dose, is supplied to the second amplifier 27, which enables the corresponding electromagnet 5 to unload the bucket k, and also through the circuit AND 17, the inverter 21 and the circuit OR-HE 18 is fed to The R input of the input trigger I, which for this reason is reset to its original state and stops the search generator 15, while a high potential remains at the output of the ring register 16 connected to the path of the stream. At the same time, the signal from the output of the AND 17 circuit arrives at one of the inputs of the AND-NE 19 circuit and maintains a resolving single signal at the output of this circuit, supporting the AND-NOT 2k scheme of this path in the zero state for the entire holding time of the time element 25, even after termination the signal of the time element 20, the output of which is connected to another input of the element NAND 19.

After the time delay of the element 25 has elapsed, a zero signal is generated at its output, which resets the counter 11 to zero, a zero signal appears at its output, which through the amplifier 26 turns on the drive 3 of the feeder 2, the resolving input of the counter 11 receives the enabling signal and Sensor 10 begins counting a new dose. The signal from the output of the counter 11 also switches the AND-NOT 2k circuit, from the output of which a single signal through the amplifier 27 turns off the bucket unloading electromagnet k and brings the circuit to the initial state, a single signal appears at its output, as the other inputs schemes should receive only single signals from paths of other streams. As a result, the output of the element AND-NOT 19 forms a low level and the action

the dose permitting signal is terminated.

When a new dose signal is received from sensor 12, the cycle is repeated and the bucket 4 of another flow is unloaded.

The time element 20 defines the search time for the filled bucket. Its time delay and frequency of the search generator 15 are selected on the basis of checking the presence of a dose at least two times in each cycle. The capacity 7 of the conveyor 6 during this time should not get out from under the funnel 8.

In the event that the dose has not been detected during the operation of the time element 20, the trigger 14 is moved to the initial state via the OR-NO-18 scheme, and the search is stopped. At the same time, a single signal is fed to the second input of the output circuit IS-NOT 23, the first input of which is connected to the direct output of the trigger 22. As the trigger 22 by the signal of the sensor 12 was transferred to the single state and due to the non-occurrence of the dose it was not reset to the initial state At the output of the NAND circuit 23, a zero signal is generated, which is fed to the control unit of the packaging machine 9.

The proposed implementation of the device allows to increase its speed and performance. The principle of construction of the device with the presence of a sampling unit in group preparation of doses allows immediately after the discovery of the filled buckets with feeders to carry out their unloading through a common receiving funnel into a continuously moving conveyor. Therefore, the capacity of the conveyor, despite the order, although one at a time, can be loaded with a much higher frequency than in similar known devices with sequential sequential loading. Avoidance of the order allows to increase the number of doses supplied to the packaging machine for a conditional time interval.

Claims (1)

Invention Formula A device for dispensing doses into a packaging machine, containing in each flow a driven feeder, a capacity for a dose, interconnected sensor and product counter, amplifiers ten 25 5 11236 the power connected to the unload electromagnet and the feeder drive, and a common receiving funnel, characterized in that, in order to improve performance, it is equipped with a dose dispenser sensor and a prepared dose sampling unit containing serially connected input trigger, search generator and ring register , OR-NOT, AND-AND-NOT circuits, time element and output trigger with an AND-NOT output circuit, as well as an additional circuit with fH-HE, an element of time for each stream and an inverter, with the corresponding outputs of the ring control The source is connected to the first inputs of the I – N schemes of each flow, their second inputs are connected to the output of the N – I scheme of the sampling unit of prepared doses, the outputs of the N – I scheme for each flow are connected to the inputs of the time elements of their flow and to the corresponding inputs AND circuit, the output of which is connected to the first input of the AND-NOT circuit of the sampling unit of prepared doses, with the R input of the output trigger, and also through an inverter with the first input of the OR-NO circuit, the second inputs of the OR-NOT, AND-NOT circuit and an additional circuit AND-NOT connected to the output of the time element block selection and prepared doses, the direct output of the output trigger is connected to the first input of the output circuit 35 NAND, the output of the OR circuit is NOT connected to the R input of the input trigger, the dose output sensor is connected to the S inputs of the input and output flip-flops, and with the input of the time element of the sampling unit prepared doses, in addition, the outputs of the counters of products of each flow are connected to the third inputs of the schemes AND IS of the corresponding flows, and the reset inputs of the counters are connected to the outputs of the time elements for their flow, the outputs of the counters are also connected to the inputs of The controllers GG1 drive drives of the respective feeders, and the outputs of these amplifiers are connected to the counting-enabling inputs of the meters, the inputs of the amplifiers that control the electromagnets of the dose discharge, are connected to the outputs of the AND-AND elements of the respective streams, and the output of the AND-NOT circuit packaging machine. thirty 40 45 50 55 i t l 2 G Oh oh I s 9 I I / q J-i- / Ј (& &. R. 11- .. I1. ... ... ZEZHZHZHZHZH i i fZLltj L