SU774643A1 - Apparatus for automatic sorting of sheets - Google Patents

Description

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The invention relates to the automation of rolling production, namely, the automatic sorting of sheets on cross-cutting strips.

Closest to the invention in technical essence and the achieved result is a device containing a flaw detector; strip defect tracking unit (register of the 10 mt), block for determining the defective sheets, scissors knives signal generation unit, block of defective sheets tracking (shift register), conveyor belt movement sensor 5 and sheet flow switches (grading assembly) ij.

This device does not allow to determine the quality of sheets received from the front section of the strip with a length of 20 equal to the distance from the axis of the flaw detector to the axis of the scissors, since the tracking of the movement of this section of the bands is not conducted due to the absence of a signal (command) to start tracking. the moment, 25 when the leading edge of the strip coincides with the axis of the flaw detector.

As a result of this, all sheets cut off from this section of the strip are always deliberately sent to marriage

that under the conditions of improving the quality of the initial sections of the strip on the mills of endless rolling and their considerable lengths (7 ... 15 m) is a significant loss of suitable products in the total annual output of sheet metal.

The aim of the invention is to eliminate this drawback and to ensure the determination of the coordinates of defects in the front section of the strip for the subsequent determination of the quality of sheets obtained from it and their sorting.

The goal is achieved by the fact that the device is additionally equipped with a sensor for detecting the beginning of the strip, located along the axis of the flaw detector and a resolution block for removing information from the flaw detector, and the inputs of the gap device for removing information from the flaw detector are connected to the flaw detector and sensor for determining the beginning of the strip and the output is with the first the input of the defect tracking unit is a strip, the second input of which is connected to the strip movement sensor, the third input is connected to the knot position generation unit, which is also connected to the first block input

defective sheets, the second input of which is connected to the output of the strip tracking unit, and the output to the first input of the tracking sheet defective block, the second and third inputs of which are connected to the sensors of the conveyor belt and the leading edge of the sheets, respectively, and the output connected to the first input of the control unit switches, the second input of which is connected to the conveyor belt movement sensor, and the output is connected to the flow switches.

The drawing shows a block diagram of the device for automatic sorting of sheets.

The diagram shows the strip 1 passing in the measurement area of the flaw detector 2, the strip tracking unit 3 connected with the strip movement sensor 4, the sensor, 5 determining the beginning of the strip, the upper drum of the flying scissors 6, kinematically connected with the signal generation unit 7 About the position of the knives, the sheets 8, the movement of which is determined by the sensor 9 of the conveyor belt movement 9, the switches 10 and 11 of the sheet flow, by means of which the sheets are guided to the packing sections 12 and 13, the determination block 14 de. faulty sheets, defective sheet tracking unit 15, switch control unit 16, front edge sensor 17, detector detection resolution unit 18.

The device works in the following way.

When filling strip 1 into a cross-cutting unit, the front end of the strip goes to flaw detector 2. At the time of its appearance in the sensor 5 zone, determining the beginning of the strip, performed, for example, in the form of a photo relay, the signal from the sensor goes to block 18 for information clearing flaw detector that allows information to pass through. the detected defects on the strip in block 3 of tracking the defective parts of the strip.

The signals of the strip moving sensor 4 are synchronized with the movement of the strip by moving the information about the strip defect in block 3, the length of the zone followed by block 3 is the distance from the flaw detector 2 to the axis of the drum of flying scissors b. The knife position generation unit 7 is kinematically connected with the upper drum of the flying shears 6 and is adjusted so that the signals received from it correspond to the cutting moment of the strip. At the moment of cutting, i.e. sheet formation, the defective sheet determination unit 14 determines the quality of the sheet and rewrites the information about the defective sheets into a block

15 accompanying defective sheets, made, for example, as a shift register. The signals of the conveyor belt moving sensor 9 are synchronized with the movement of the cut sheets 8, moving information about defective sheets in block 15. The position of the front edge of the sheet relative to the switches 10, 11 of the sheet flow is produced in block 15 by a signal from the front edge edge sensor 17. The same sensor signal 17 transfers the sheet information to the switch control unit 16. The block 16 accompanies the movement of the sheets to the switches 10, 11 of the sheet flow, and also provides control signals to these switches.

The defective sheets are placed in the packing section 12, and the conditioned sheets are placed in the packing section 13. The use of this device eliminates the ingress of suitable sheets into a marriage when cutting the front portion of the coil strip.

The economic effect is achieved by increasing the yield of medschla on the cross-cutting unit

Claims (1)

Invention Formula A device for automatic sorting of sheets containing a flaw detector, a strip movement sensor, a strip defect tracking unit, a defective sheet detection unit, a defective sheet tracking unit, a knives position generation unit, a conveyor belt displacement sensor, a sheet leading edge sensor, sheet flow switches and A switch control unit is characterized in that, in order to prevent sheets from falling into the flow of defective strips when cutting the front section of the strips, it is additionally equipped with sensors the commencement of determining the beginning of the strip, located along the axis of the flaw detector and the block for removing information from the flaw detector, the inputs of the block for resolving information from the detector are connected to the detector and the sensor for determining the beginning of the strip, the second input is connected with the strip movement sensor, the third input is with the knot signal generation unit, which is also connected to the first input of the defective sheet determination unit, the second input of which is connected to the output m polool defects accompanied block, and an output - to the first input unit accompanied defective sheets, second and third inputs of which are connected to sensors for moving the conveyor belt and the leading edge of the sheets, respectively, and the output is connected to the first input of the switch control unit, the second input of which is connected to the sensor for moving the conveyor belt, and the output is connected to the switches of the sheet flow. Sources of information taken into account in the examination 1, USSR Author's Certificate 232197, class, B 21 at 37/00, 1966.