SU467869A1 - Device for matching the speeds of belt conveyors - Google Patents

Description

This makes it possible to improve the accuracy of matching the speeds of the conveyors and. in addition, it provides the conditions for shrinkage from; del. The drawing shows the functional diagram of the proposed device and electric. Scale schemes for the inclusion of separate aged elements. The device contains conveyors 1 02 tape product 3, sensors of the top 4 and bottom 5 allowable positions of the product loop, made in the form of a photo relay, respectively, with shorting contacts 6 and 7, as well as disconnecting contacts 8-11, capacitors 12 and 13, sectional resistor with normalized resistance sections 14-14., and conclusions 15-15 step finder 1 п + 1 with coils 16 and 17, brush 18 and lamella 19-19, feed bus 1 20 and 21. The device works as follows In the initial position, the brush 18 stepper The finder is located on one of the slats 1 9. - The loop of the product goes beyond the upper limit of the zone of permissible movement. Sensors 4 and 5 are included. The sectional resistor is enclosed by the disconnecting contact 11 of sensor 5. Trans; porter 2, controlled by a resistor, moves at a minimum speed lower than the speed of the conveyor 1. The loop is lowered. When the loop enters the zone of allowable movements, the sensor 4 is disconnected and the circuit breaker opens with DIM contact 8. It connects the capacitor 2. to the supply bus 2O and 21. The capacitor 12 is charged. The capacitor 13 is already charged through the closing contact 7 of the sensor 5. So, as the sweeper 18 of the stepper finder is on the intermediate lane, and the disconnecting contact 9 of the sensor 4 is closed, the P1 sections of the resistor are bridged and the resistor is connected to the control circuit 2 only Partly but. If the speed of the conveyor 2 at that is higher than the speed of the conveyor 1, then the loop moves up and goes beyond the upper limit of the zone of allowable movements. The sensor 4 is turned on. The capacitor 12 is discharged through the closing contact 6 of the sensor 4 and the coil 16 of the stepper finder. Brush; The 18 step finder is moved to the lamella in the direction of decreasing the number of sewn sections. The opening contact 9 of sensor 4 breaks the circuit between the brush 18 of the step finder and the terminal 15 of the resistor, so. that the resistor is completely included in the conveyor control circuit, 2. Conveyor 2 moves at a minimum speed, and a loop. enters the zone of allowable puffer. Sensor 4 is switched off and disconnecting kong: tact 9 bypasses the fn-1 resistor sections. The speed of the conveyor. 2. Not one step decreases. Condenser 12 is charged through the disconnecting contact 8 of sensor 4. If the speed of conveyor 2 is still high, the loop again goes beyond the upper limit of the zone of permissible mixing, and again the sweeper step pad 18 moves to the next lamella in the direction of reducing the number of bored sections. Thus, when the loop enters the zone and the sensor 4 is turned off, it remains. shunted; No. 2 sections of the zistra, and the clearance rate of the spring oversight 2 is reduced. one step. The resistance value of the resistor is chosen so that the speeds of the transporters are consistent. If the speed of the conveyor 2 is lower than the speed of the conveyor 1, then the loop moves down, the sensor 5 is turned off, it completely shunts the contact opening resistor; volume 11, increasing the conveyor speed 2. i to the maximum value. The capacitor 13 is discharged through the disconnecting contact of the Sensor 5 and the coil 17 of the stepper finder, which moves the brush 18 to one lamella g, the increased number of the clamped side. sections of resistor-and-reduce its total resistance. Since the speed of the transponder 2 is higher than the speed of the conveyor 1, the loop enters the zone of permissible movements. Sensor 5 is turned on and opener; pin 11 detsuntiruet resistor. However, it remains; zaschuntirova nn1m, increased: by one the number of sections of the resistor, so the transorter 2 moves at a speed increased by one step in comparison with its speed) until the loop goes down; sch11 | the limit of the zone of permissible displacements, If: this increase in speed is not enough, then: by subsequent outlets of the loop beyond the lower limit of the zone of permissible displacements, such a resistance is calculated; which conveyor speeds will become consistent. The subject of the invention is a device for speed matching. tranporter tape product containing ....,. „,. .ff. . ,,. ... f ,,,:, t, S ,. , .. ,,. „. VJ. ..-,. vr -.....- .., k. -,. „.

the upper and lower allowable loop positions of the product with closing and opening contacts, a sectional resistor installed in the drive control of one of the conveyors, capacitors, characterized in that, in order to improve the accuracy of matching, it is equipped with a step finder, one coil of which is the first output connected to the first power bus, and the second output through the serially connected closing and first disconnecting contacts of the sensor of the upper permissible position of the loop of the product to the second feed conductive bus, a first terminal of the other coil is connected to the first supply bus and a second terminal via a series-connected first

opening and closing contacts of the sensor of the lower permissible position of the loop of the product - W) the second supply busbar, lamellae; stepper finder is connected to pins 5; sectional resistor shunted: by the second disconnecting contact of the lower permissible loop position of the product, the step finder's brush is connected between the point connection of the closing and first opening contacts

15 of the corresponding sensor for the allowable position of the loop of the article and the first busbar.

12 f (

21

75,

15n, 41

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