SU1244220A2 - Arrangement for stabilizing the throughput of feed unit of group of scutchers - Google Patents

Description

The invention relates to the textile industry, in particular, to devices for stabilizing the performance of a power unit of a group of shingles.

The purpose of the invention is to improve the accuracy of stabilization performance.

The drawing shows a block diagram of the device.

The device contains a Bale Discharger battery capacity regulator 1 and a pie-system 2 for feeding the fiber 3 into the mixer chamber 4. The outlet grill and the mixer feed conveyor respectively have actuators 5 and 6 that receive signals for the speed reference from the controlled setpoint devices 7 and 8 respectively. The tillers 9 through the control units 10, the unit 11 controlling the number of working tillers and the correction unit 12 are connected to the bale discharger capacity controller 1 and to the speed control devices 7 and 8. The fiber level sensor 13 in the mixer hopper is connected to the controller 1. A mixer performance sensor I4 is installed at the output of the mixer 4.

The device works as follows.

Assume that all the scutching machines 9 are working and the mixer chamber 4 is filled with fiber 3 to a certain level. In accordance with the set value of the scutching machines, the performance values of the controller 1 and the mixer 4 are determined. So, if two scutching machines with a capacity of 180 kg / h each are working, through the control units 10, the information on the total number of working scutching machines comes in the number of units of operating equipment. Block 11, through correction block 12, determines by means of recessor 1 for balers such speed of movement of containers with K lp and by means of setting devices 7 and 8 and drives 5 and 6, such speeds of exhaust mixer and feed conveyor of mixer, at which unit capacity is for example, 360 kg / h, and the filling of the mixer chamber with a fiber is determined by the level chosen from the condition of obtaining a high-quality mixture. In considered

In this case, the regulator 1 of the bale collector battery receives from sensor 13 a signal about the level of fiber equal to the required one, and to the controlled lock sensor 7 of the drive 5 of the needle mixer of the mixer 14 of the Performance 14 - a signal about the corresponding performance of the mixer of the required (360 kg / h) The speed of the feed conveyor of the mixer by means of an adjustable drive 6 is set to be the highest, which ensures that the required 360 kg / h of fiber capacity is supplied to the final needle grid. The signals of the level 13 and 14 sensors and the output are negative feedback applied to the regulator 1 and the block 7, respectively, contribute to the stabilization of the capacity of the bale discharger battery and the mixer 4.

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In the event that the load on the power unit decreases, i.e. One scutching machine is disconnected, automatically y Fenced and the information from the output of block I1 monitors the number of working scutching machines 9, and consequently, adjusting block 12 reduces the settings of regulator 1 of the kit disassembled and controlled, setpoint 7 of the drive 5 of the needle grid. The speeds of the bale dispenser containers and the mixer outlet grille are reduced, and the feed unit moves to a new productivity level of 180 kg / h. Simultaneously with decreasing the set points of the booster blocks I and 7, the setpoint of the controlled setting unit 8 of the drive 6 of the feeding conveyor of the mixer 4 is reduced, as a result of which the speed of the feeding conveyor and, consequently, the intensity of the fiber supply to the needle web of the mixing grid of the mixer decreases. The bedding geometry of the fiber flooring in the mixer chamber remains set, the stationarity of operation of the mixer 4 is not disturbed. Due to a certain inertia of disassembly, the fiber flow in the pneumatic line from the bale discharger battery is not immediately reduced, which causes the fiber level to increase in the mixer chamber, an increase in the I3 sensor signal and a temporary decrease due to feedback from the sensor 13.

battery performance below 180 kg / h. The increased level mismatch of the mixer chamber 4 is quickly handled by the device: the flow of fiber into the mixer chamber from the bale collector battery is reduced with a constant amount of fiber determined by the capacity of 180 kg / h outputted by the grille from the mixer, ensuring minimal deviation of the mixer level from the required and, consequently, the smallest deviation of the mixer performance from the set one.

However, let the small deviations of the filling level of the mixer chamber from the required level cause a change in the current performance of the mixer. These deviations in the operation of the mixer 4 are processed through the feedback channel in terms of performance using sensor 1. Sensor 14 continuously adjusts the signal of the first controlled setting device 7, as a result of which the accuracy of maintaining the performance of the mixer is ensured. The same connection allows to exclude an increase in the selection of the mixer 4 when the height of the fiber column is twisted and vice versa, and, consequently, to ensure the constant flow of the fiber coming to

Editor A. Ogar

Compiled by B. Kisin Tehred N. Bonkalo

Order 3778/30 Circulation 432 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

5 (O

15

2442204

breaking machines 9. As a result: controlling the supply of fiber to the mixer 4 from the side of the bale collector battery via the level 13 sensor channel, the fiber level in the mixer is quickly restored.

Other situations are also possible, eliminating the deviation of the fiber level in the mixer and the performance of the mixer from the required, for example, drift speed of the feeders of the machines of the power unit. So, if the speed of the movement mechanism of a container of one of the balers due to the development of kinematic transmission elements has increased, this baler with a setting of its controller equal to the settings of the regulators of other balers gives an increased amount of loosened fiber, and therefore, causes a long-term statistical excitation whereby the fiber level in the mixer chamber increases. Regulator 1 according to the signal from sensor 13 fulfills this change, and sensor 14 introduced into the device generates a signal that allows the deviation of the mixer performance to occur and appears according to the control algorithm considered for reducing the load on the power unit.

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Proofreader M. Pojo

Claims (3)

<54) 1. DEVICE FOR STABILIZING THE PRODUCTIVITY OF A GROUP'S POWER SUPPLY UNIT, TRAVELING MACHINES according to ed. No. 996'537, characterized in that, in order to improve the accuracy of stabilization of productivity, it is equipped with a mixer performance sensor, the output of which is connected to the auxiliary input of the controlled speed controller. ' 2. The device according to π. 1, characterized in that it is equipped with an additional controlled speed controller, the input of which is connected to the third output of the correction unit, and the output is connected to the drive of the feed conveyor of the mixer ·. 3. The device according to π. 1, characterized in that it is equipped with. · Equipped with a level sensor located in the mixer and connected with a regulator of the performance of the battery of the bale collectors. ozzmi ns ^βη