Summary of the invention
Needing artificial participation to solve in existing coil of strip gage work, causing that measurement efficiency is low, the inaccurate problem of data, the utility model provides a kind of coil of strip self-measuring device.
The utility model is completed by following technical proposal: a kind of coil of strip self-measuring device, comprise and be arranged on on-the-spot steel coil weigher, weighing instrument, optoelectronic switch, remote I/O module, coil of strip tracking computer, to weigh computing machine, it is characterized in that being arranged on on-the-spot steel coil weigher is connected with weighing instrument by signal wire, weighing instrument is connected with computing machine of weighing by rs 232 serial interface signal line, optoelectronic switch is connected with remote I/O module by signal wire, remote I/O module is connected with computing machine of weighing by rs 232 serial interface signal line, coil of strip tracking computer is connected with computing machine of weighing by ethernet line.Thus form an organic whole by network.
Described steel coil weigher, weighing instrument, optoelectronic switch, remote I/O module, coil of strip tracking computer, computing machine of weighing are commercial products.
Steel coil weigher, be arranged on coil of strip from produce unit wiring process conveying arrangement (such as step rate saddle or conveyer chain), for weighing.
Weighing instrument, amplify for the simulating signal exported steel coil weigher sensor, filtering, the process such as conversion, become computing machine identifiable design of weighing, stable digital signal, possess serial line interface and computing machine of weighing carries out communication function.
Photoswitc, for detecting the lower limit of beam-type steel roll transport apparatus, thus judges whether coil of strip goes up scale completely, possesses the condition of weighing.For conveying arrangement step rate, when step rate transports the saddle that coil of strip arrives steel coil weigher place, step rate starts to decline, and arrive lower position, coil of strip is complete stressed by weighing platform, now possesses the condition of weighing.
Remote I/O module, for the digital signal acquiring exported optoelectronic switch, I/O module tool 6 isolates digital input channel entirely, effectively can prevent interference; With RS485 bus interface, telecommunication can be carried out with computing machine of weighing.
Coil of strip tracking computer, it belongs to a part for steel coil transportation control system, dynamically can follow the tracks of the coil of strip of each position on conveying arrangement.
To weigh computing machine, for gathering the attribute information (coil of strip number, specification) of coil of strip from coil of strip tracking computer, adopt ethernet communication; From remote I/O module acquires photoelectric switching signal, gather weight indicating value from coil of strip weighing instrument, communication modes is serial communication; Weigh computing machine according to judging above-mentioned signal, information matches, complete automatic weighing function.
The present invention compared with prior art has the advantage of automatic gauge, and whole metering process, without the need to manual intervention, ensure that the accuracy of continuous data, improves person works's efficiency.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
The utility model is completed by following technical proposal: a kind of coil of strip self-measuring device, comprises and is arranged on on-the-spot steel coil weigher 1, weighing instrument 2, optoelectronic switch 3, remote I/O module 4, coil of strip tracking computer 5, computing machine 6 of weighing.Wherein: be arranged on on-the-spot steel coil weigher 1 and be connected with weighing instrument 2 by signal wire, weighing instrument 2 is connected with computing machine 6 of weighing by rs 232 serial interface signal line, optoelectronic switch 3 is connected with remote I/O module 4 by signal wire, remote I/O module 4 is connected with computing machine 6 of weighing by rs 232 serial interface signal line, and coil of strip tracking computer 5 is connected with computing machine 6 of weighing by ethernet line.
During work, when coil of strip arrives steel coil weigher 1 by conveyer chain or step rate, optoelectronic switch 3 can detect the lower limit of conveying arrangement, its detection signal is through the conversion of remote I/O module 4, computing machine 6 of weighing can be entered, as judging that whether coil of strip is complete on scale, possesses the condition gathering weight indicating value; The output signal of steel coil weigher 1 is through the analog to digital conversion of weighing instrument 2, and can continuously issue with digital signal computing machine 6 of weighing, computing machine 6 of weighing just can obtain the weight indicating value that current steel coil weigher changes; Weigh computing machine 6 by access coil of strip tracking computer 5, the current coil of strip property value (as coil of strip numbering, specification etc.) of steel coil weigher position on line can be produced; To weigh the output of computing machine in conjunction with above-mentioned signal, just automatically can draw the complete metrical information of coil of strip of weighing, without the need to manually mating, confirming, reach the effect of automatic gauge.