SU424005A1 - DEVICE FOR NON-CONTACT AUTOMATIC DETERMINATION OF TABLE VOLUMES OF ROUND-WASTE MATERIALS MOVED BY A LONG-TERM TRANSPORT - Google Patents

Description

one

A known device for contactless automatic determination of tabular volumes of round timber moved by a longitudinal conveyor, including an electronic circuit, an information processing unit whose outputs are connected to a computing unit of a tabular volume log diameter meter and a log length meter, cocTOHHier from a number of sensors located in the direction of conveyor movement , does not provide sufficient reliability and increase the accuracy of the calculation.

In order to increase the reliability and increase the accuracy of the calculation, the proposed device includes a series of gamma sensors installed along the conveyor according to the table of the lengths of timber and connected to an electronic circuit, to the outputs of which a line of temporal drivers is connected to the information processing unit.

FIG. 1 is a block diagram of the proposed device; in fig. 2 is a block diagram of a device length meter.

The device consists of a log diameter meter 1, a length and diameter information processing unit 2, a computing unit 3 and a log length meter 4, the state Hj, ero of a number of gamma sensors, a origin sensor 5, a sensor of base size 6,

located in 0.5 m, sensor 7 of exact size, located in 0.05 m, and an electronic meter circuit including the following elements: - threshold device, T - trigger, &a; - coincidence circuit, HE - cxe ia negative, K - key, F - shaper "exact, Fe ... Fv - a line of temporary shaper (" basic shapers).

When the log is moved along the conveyor by the front end, the diameter sensor 1 is shaded, and the origin of the diameter of the beginning of the log is shaded. When the log leaves the sensor zone, the diameter of the end of the log is measured. The information on measured deters enters information processing unit 2.

The length of the log is measured by the vernier method using a log length gauge 4, which is a discrete meter with a direct count of 1 mplus, as follows.

With a longitudinal movement of the log, the sensors are shaded. The shadowing and farHeiimee illumination of the basic sensors creates at the input of the threshold device PU a corresponding pulse of the channel a negative pulse, the falling edge of which triggers the trigger T. The signal from the trigger enters the input of the circuit I, but it does not pass to the input of the basic driver F

until the “AND the match” signal is received from the origin sensor 5. When the log of the sensor reaches the reference point, a positive differential on the input of the threshold PU device passes to the negative circuit, NOT the signal from which the second input of the matching circuit arrives, thereby preparing the trigger circuit of the basic drivers.

When consistently shading "accurate sensors 7, an open signal from the output of the PU horns through the key K goes to start" accurate driver F. The pulse duration of the exact driver corresponds to the selected step of 0.05 m. Prp mastering the basic 113 sensors on the circuit input matches "And two pulses are received, and the negative signal from the output of the circuit triggers the corresponding" basic driver. The output pulse of the latter arrives at the trigger T, which controls the key K. The key opens and breaks the start circuit of the exact driver. As the end of the “base sensors” passes through, nx sequential illumination and launch of the corresponding “base drivers” occurs. The duration of the Schulses of the basic shapers corresponds to the difference between them. When passing through the end of the sensor log of the patch of the last one, the latter is illuminated, and a positive differential from the output of the sensor returns the triggers of the basic channels and the trigger controlling the key to the initial state.

In block 2 of processing A11 formations, a pu of two diameters is selected down and rounded to the nearest table value. For the purpose of the unity of the scale, the pulses carrying information about the length and diameter are zaoliolutsya and: 1pulsamp high frequency from the same fifth generator of counting emulsions

and HOCTyiiaeT in calculated block 3, where the calculation of tabular volumes takes place.

PREMIUM invented and

A device for contactless automatic determination of table volumes of round timber, interleaved by a longitudinal conveyor, including its electronic circuit, information processing unit, the outputs of which switch to the computational unit of the table volume log diameter meter and log length meter, consists of a number of sensors that are located in the movement of the log diameter of the conveyor, except for the fact that, with an increase in caseability and computational accuracy, it includes a number of gamma sensors, along the conveyor, according to the table values of the lengths of timber,

and connected to an electronic circuit, to the outputs of which a range of time formers is connected, which is connected by the processing unit 1pc1) oimapii.

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