A kind of wireless sensing intelligence drying unit
Technical field
The present invention relates to a kind of drying plant, be specifically related to a kind of wireless sensing intelligence drying unit that corrugated paper is produced that is used for.
Background technology
At present, many products need oven dry in process of production, and packaging material especially are like corrugated paper production.After corrugated paper is reinforced bonding, should carry out flash baking, guarantee that again corrugated paper keeps prototype attractive in appearance it.In existing corrugated paper drying unit; Majority is dried through Steam Heating; Cardboard is inserted in the drying baker, transmit through transport tape, the conveyer belt below is installed a plurality of oven dry blower fans and is used to pour into vapours; Take away corrugated board moisture through vapours, through exhaust duct moisture is discharged baking oven again.Existing corrugated paper drying plant is bulky, and temperature control system exists serious hysteresis, is head it off, and existing air quantity control method normally adopts wired mode to gather oven temperature, controls rotation speed of fan simply through feedback temperature and empirical value.Tradition drying unit and method detect the baking oven vapor (steam) temperature merely, and only adopt single checkout gear and simple control method control blower fan, therefore, exist departure bigger, have the temperature control hysteresis equally.
Summary of the invention
The technical problem that the present invention solves is the deficiency that overcomes prior art, and a kind of intelligent drying unit of control wireless sensing intelligent and control accuracy that improves is provided, and the present invention can be used in corrugated paper production; Can directly detect corrugated paper temperature and humidity value, and respond fast, adjust the pre-estimation parameter automatically through wireless mode; The Based Intelligent Control air quantity, the adjustment bake out temperature, control accuracy is high; Can either carry out flash baking to corrugated paper, guarantee the dries quantity of corrugated paper again.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is following:
A kind of wireless sensing intelligence drying unit; Comprise drying baker and the transmission device that is used for the transmission corrugated paper; Transmission device laterally is installed in the drying baker medium position and reveals and shows outside drying baker; Below drying baker, be provided with the air-heater that is used to pour into vapours that is communicated with drying baker; Above drying baker, be provided with the dehumidification tube that is used to discharge humid air that is communicated with drying baker; Also comprise with air-heater the motor control assembly that is electrically connected, is used to control the air-heater rotating speed, in drying baker and above transmission device, be provided with the cardboard humiture collection device that is used to gather corrugated paper temperature and humidity value, cardboard humiture collection device is connected with motor control assembly through wireless mode.
In the such scheme, on air-heater, be provided with air outlet, be provided on the air outlet gathering that vapours pours into speed goes into the air quantity harvester, saidly go into air quantity harvester (6) and be connected with motor control assembly (2) through wireless mode with the drying baker place of connection.
In the such scheme; Saidly go into air quantity harvester and cardboard humiture collection device and be connected with motor control assembly through the converging device that is used to converge image data; Go into to be wireless mode between air quantity harvester and cardboard humiture collection device and the converging device and to be connected, converging device and motor control assembly are for being electrically connected.
In the such scheme, saidly go into the air quantity harvester and comprise interconnective air blade and air velocity transducer.
In the such scheme, said air velocity transducer is a photoelectric encoder.
In the such scheme, said cardboard humiture collection device comprises the temperature sensor and the humidity sensor that is used to measure the corrugated paper humidity value that is used to measure the corrugated paper temperature value.
In the such scheme, said temperature sensor is an infrared temperature sensor, and said humidity sensor is contactless humidity sensor.
In the such scheme, said motor control assembly comprises dsp controller that is used for the processing collected data and the H bridging frequency drive unit that is used to drive air-heater, and dsp controller and H bridging drive unit frequently interconnect.Dsp controller will be handled the image data that receives from converging device, adjust the pre-estimation parameter of setting automatically, and output pwm signal is to H bridging frequency drive unit then, and H bridging frequency drive unit drives air-heater work according to the pwm signal of dsp controller.
In the such scheme; It is characterized in that; Said transmission device is provided with laterally to be installed in the drying baker medium position and to reveal and shows the hollow crawler belt of ventilation outside drying baker, is placed with the driving wheel that drives the hollow caterpillar drive that ventilates in the hollow crawler belt that ventilates, and said driving wheel is fixed through drying baker.
In the such scheme, said driving wheel comprises driving wheel and driven pulley, and driving wheel is placed on the hollow crawler belt two ends that ventilate, and driven pulley is placed on the medium position of the hollow crawler belt that ventilates.
Compared with prior art, the beneficial effect of technical scheme of the present invention is:
The present invention through the monitoring in real time of radio sensing network framework with directly gather vapours in the air-heater and pour into speed and the humiture of corrugated paper in the drying baker; And the data that collect are transferred to motor control assembly fast through wireless mode carry out data; Motor control assembly is according to the data in real time control air-heater that receives; In time and the air quantity of Based Intelligent Control air-heater and adjustment bake out temperature, solved problem such as, temperature control hysteresis big to departure.The present invention is high to the control accuracy of air-heater, can either carry out flash baking to corrugated paper, has guaranteed the dries quantity of corrugated paper again.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of motor control assembly among the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is done further explanation.
As shown in Figure 1, a kind of wireless sensing intelligence drying unit comprises converging device 1, motor control assembly 2, air-heater 3, drying baker 5, goes into air quantity harvester 6, transmission device 7, dehumidification tube 8, cardboard humiture collection device 9.
Transmission device 7 laterally is installed in drying baker 5 medium positions and reveals and shows outside drying baker; It is provided with laterally to be installed in drying baker 5 medium positions and to reveal and shows the hollow crawler belt 71 of ventilation outside drying baker 5; Ventilate and be placed with the driving wheel that drives hollow crawler belt 71 motions of ventilating in the hollow crawler belt 71; Driving wheel comprises driving wheel 72 and driven pulley 73; It is also fixing through drying baker 5 that driving wheel 72 is placed on hollow crawler belt 71 two ends that ventilate, and driven pulley 73 is placed on the medium position of the hollow crawler belt 71 that ventilates and passes through drying baker 5 fixing.Motion through driving wheel 72 and driven pulley 73 drives hollow crawler belt 71 motions of ventilating, with being placed on the hollow crawler belt 71 that ventilates corrugated paper along with coming out from drying baker 5 in the drying baker 5 oven dry backs that are moved into of the hollow crawler belt 71 that ventilates.
Air-heater 3 is arranged on the below of drying baker 5 and is communicated with drying baker 5, on air-heater 3, is provided with air outlet 31 with drying baker 5 places of connection, is used for pouring into vapours to drying baker 5.
Dehumidification tube 8 is arranged on the top of drying baker 5 and is communicated with drying baker 5, is used to discharge the humid air that is evaporated from corrugated paper;
Go into air quantity harvester 6 and be arranged on air outlet 31 places at air-heater 3, go into air quantity harvester 6 and comprise interconnective air blade and air velocity transducer, air velocity transducer is a photoelectric encoder;
Cardboard humiture collection device 9 is arranged in the drying baker and is positioned at the top of transmission device, and it comprises the infrared temperature sensor and the contactless humidity sensor that is used to measure the corrugated paper humidity value that is used to measure the corrugated paper temperature value.
Converging device 1 is used to converge the data that collect into air quantity harvester 6, cardboard humiture collection device 9, its through wireless mode with go into air quantity harvester 6, cardboard humiture collection device 9 is connected, converging device 1 is electrically connected with motor control assembly 2.
As shown in the figure, motor control assembly 2 is electrically connected with air-heater 3, and motor control assembly 2 comprises dsp controller 21 that is used for the processing collected data and the H bridging frequency drive unit 22 that is used to drive air-heater, and dsp controller and H bridging drive unit frequently interconnect.
Further specify embodiment of the present invention according to data flow direction below.Going into the vapours amount of pouring into that 6 collections of air quantity harvester pour into from air-heater 3; Cardboard humiture collection device 9 is gathered the cardboard temperature and humidity value that is placed on the corrugated paper on the hollow crawler belt 71 that ventilates, and the data that collect are sent to converging device 1 through wireless mode.Converging device 1 is sent to motor control assembly 2 through 485 buses with relevant parameter.As shown in Figure 2, the dsp controller 21 in the motor control assembly is handled relevant parameter, adjusts the pre-estimation parameter automatically; Output pwm signal then; And through the air-heater 3 among tandem pre-estimation pid control algorithm control H bridging frequency drive unit 22 driving Fig. 1, vapours pours into oven body 5 from air outlet 31, and vapours sees through the upper paper strip through the hollow crawler belt 71 that ventilates and walks the moisture on the cardboard; Moist steam is discharged outside the drying baker 5 from moistureproof window 8, accomplishes whole drying course.