Summary of the invention
The technical problem that the present invention will solve provides a kind of interior sheet material Position Indicator System of closed system that can show sheet material location status in the closed system easily and reliably.
In order to address the above problem, the invention provides sheet material Position Indicator System in a kind of closed system, comprising:
Divide plate module, plate module was assigned to the plasterboard that transports respectively in the drying machine different layers in said minute, and with this minute plate information send to counting module;
Range finder module, said range finder module is measured plasterboard travel distance in drying machine, and this range information is sent to said counting module;
Counting module, said counting module receive the information that said minute plate module and range finder module send, and count, and count results is sent to display module;
Display module, said display module receives the count results that said counting module sends, and shows.
Further; Plate module included the distribution bridge in said minute; Said distribution bridge is assigned to the plasterboard that transports in the drying machine different layers; On said distribution bridge, also be connected with optoelectronic switch, said optoelectronic switch detects and divides plate information, and with this minute plate information send to said counting module with electrical signal form.
Further, said range finder module comprises the pitch sense switch, and each pitch produces a pulse, and this pulse is sent to said counting module.
Further, said counting module comprises:
Position units; Said position units is a plurality of positions of going forward one by one with the order label with respective length according to plasterboard length with equipartition in the drying machine, and this this location parameter is sent to said the first unit, shift unit, ordered series of numbers unit and display module;
The first unit; Said the first unit receives the location parameter that the signal of telecommunication that said minute plate module send and said position units are sent; Judge whether first position has plasterboard, and will have or not the information of plasterboard to send to said shift unit with 1,0 digital signal representation respectively;
Shift unit, said shift unit receives the location parameter that said position units is sent, and confirms each position; Said shift unit receives the data signal of the first positional information of sending said the first unit, confirms the initial position state; Said shift unit receives the pulse that said range cells is sent; And the location parameter that sends according to said position units; After the full position length of definite plasterboard walking; Each position digital parameters of original state is carried out order shift forward, confirm that successively everybody is equipped with the digital parameters of no plasterboard at this moment, and this digital parameters is sent to said ordered series of numbers unit;
The ordered series of numbers unit; Said ordered series of numbers unit receives the digital parameters that location parameter that said position units sends and said shift unit send; Carry out one by one correspondingly, make that everybody is equipped with the judgement of no plasterboard in the drying machine, and this judged result is sent to said display module.
Further, said display module comprises display screen, and said display module representes not have plasterboard with redness, representes that with green plasterboard is arranged.
Further, said counting module is PLC.
The present invention has following advantage:
1, the present invention adopts the branch plate module to detect branch plate situation, range finder module sheet material measurement displacement, and counting module is comprehensively counted; Confirm the sheet material location status, and show, can show the location status of sheet material in the drying machine closed system easily and reliably through display module; Be convenient to adjust the heat distribution of drying machine each several part; Improve the board materials production qualification rate, and energy savings, product competitiveness greatly improved.
2, the present invention is simple in structure, realization is safe and reliable, and applicability of the present invention is wide, is convenient to standardization and makes, and helps promoting the use of.
The specific embodiment
As shown in Figure 1, the present invention includes branch plate module 1, range finder module 2, counting module 3 and display module 4.Wherein, branch plate module 1 is used for to 5 fens plates of drying machine; Range finder module 2 is used to measure plasterboard 6 travel distances in the drying machine 5; Counting module 3 is used for according to minute plate and the location status of range finding status analysis plasterboard 6 in drying machine 5; Display module 4 is used to show the location status of plasterboard 6 in drying machine 5.
Branch plate module 1 is assigned to the plasterboard that transports 6 respectively in drying machine 5 different layers, and with this minute plate information send to counting module 3.
Range finder module 2 is measured plasterboard 6 travel distance in drying machine 5, and this range information is sent to counting module 3.
Counting module 3 receives branch plate module 1 and the information that range finder module 2 sends, and counts, and count results is sent to display module 4.
Display module 4 receives the count results that counting module 3 sends, and shows.
The present invention adopts branch plate module 1 to detect the plate situation of dividing, range finder module 2 sheet material measurement displacements, and counting module 3 is comprehensively counted; Confirm the sheet material location status, and show, can show the location status of sheet material in drying machine 5 closed systems easily and reliably through display module 4; Be convenient to adjust drying machine 5 each several part heat distributions; Improve plasterboard 6 board materials production qualification rates, and energy savings, product competitiveness greatly improved.
Among the present invention, branch plate module 1 includes distributes bridge 11, distributes bridge 11 that the plasterboard that transports 6 is assigned in drying machine 5 different layers.Also be connected with optoelectronic switch 12 distributing on the bridge 11, optoelectronic switch 12 detects and divides plate information, and with this minute plate information send to counting module 3 with electrical signal form.
Among the present invention, range finder module 2 comprises pitch sense switch 21, and each pitch produces a pulse, and this pulse is sent to counting module 3.
Among the present invention, counting module 3 comprises position units 31, the first unit 32, shift unit 33 and ordered series of numbers unit 34.Wherein:
Position units 31 is a plurality of positions of going forward one by one with the order label with respective length according to plasterboard 6 length with equipartitions in the drying machine 5, and this this location parameter is sent to the first unit 32, shift unit 33, ordered series of numbers unit 34 and display module 4.
The location parameter that the signal of telecommunication that the first unit 32 reception branch plate module 1 are sent and position units 31 are sent is judged whether first position has plasterboard 6, and will be had or not the information of plasterboard 6 to send to shift unit 33 with 1,0 digital signal representation respectively.
The location parameter that shift unit 33 receiving position unit 31 send is confirmed each position; Shift unit 33 receives the data signal of the first positional information of sending the first unit 32, confirms the initial position state; Shift unit 33 receives the pulse that range cells 2 is sent; And the location parameter that sends according to position units 31; After the full position length of definite plasterboard 6 walkings; Each position digital parameters of original state is carried out order shift forward, confirm that successively everybody is equipped with the digital parameters of no plasterboard 6 at this moment, and this digital parameters is sent to ordered series of numbers unit 34.
The digital parameters that location parameter that 34 receiving position unit 31, ordered series of numbers unit send and shift unit 33 send is carried out one by one correspondingly, makes that everybody is equipped with the judgement of no plasterboard 6 in the drying machine 5, and this judged result is sent to display module 4.
Among the present invention, display module 4 comprises display screen, and display module 4 representes not have plasterboard 6 with green, representes to have plasterboard 6 with redness.Through each regional different color sign, can clearly recognize the location status of plasterboard 6 in drying machine 5, adjust heat distribution according to this location status then, to improve the quality of products and to reduce energy resource consumption.
Among the present invention, counting module 3 is PLC.Adopt PLC as counting module 3, because the PLC technology maturation can be carried out secondary development on this technical foundation, practice thrift development cost, and control realizes reliable and stable.
The present invention is simple in structure, realization is safe and reliable, and applicability of the present invention is wide, is convenient to standardization and makes, and helps promoting the use of.
Elaborate in the face of implementation process of the present invention down:
Drying machine 5 can comprise a district, two districts, three districts and preheating zone and cooling zone; Plasterboard 6 (wet plate) after solidifying gets into drying machine from the preheating zone; Under the drive of main transmission, advance forward; Go out drying machine after the cooling through the heat drying in a district, two districts, three districts and cooling zone, get into next process.The hot flue gas that boiling furnace combustion produces is introduced into Yi Er district heat exchanger, carries out heat exchange here with than cold air, and cold air is heated; Hot flue gas after the exchange gets into three district's interchangers again and carries out heat exchange, pass through the cottrell dedusting at last after, a part is got back to fluidized bed furnace by return air channel and is carried out recycling residual heat, a part enters atmosphere.The origin of heat in drying machine 5 one districts, two districts is heat exchanger in the Yi Er district; Under the effect of district's blower fan; The hot-air of one district's heat exchanger gets into drying machine 5 and carries out exchange heat with drying machine 5 interior plasterboards 6, promptly plasterboard 6 is carried out drying, heat-exchanged air temperature decline (being referred to as cold air); Through piping and flashboard; A part is got back in district's heat exchanger and is carried out heat exchange next time, and another part is Returning heat-exchanger not, through the hot-air mixing of the direct He Yi of flashboard district heat exchanger outlet.The amount of regulating hot-air and cold air through the aperture of regulating flashboard, thus the temperature in drying machine 5 one districts controlled.The temperature that how much can influence this district of the distribution of wet plate and quantity in drying machine 5 one districts, the amount of hot-air and cold air should be regulated according to the distribution of wet plate.In brief, wet plate number affects thermic load, and thermal source is supplied with and is adjusted in real time according to the size of thermic load, thus guarantee that temperature maintenance at stability number, big fluctuation do not occur.In like manner, the temperature control principle in drying machine 5 two districts, three districts is the same with a district.
Obtaining the positional information of plasterboard 6, whether have plate get into, on distribution bridge 11, an optoelectronic switch 12 has been installed for this reason if at first must know, plasterboard 6 gets into drying machines 5 when over-allocation bridge 11, and optoelectronic switch 12 can switching signal of output be given PLC.Because what we paid close attention to is the distribution situation of whole drying machine 5 Nei Ge district plasterboards 6; Rather than the particular location of a certain plate; If so regard the plasterboard 6 of a Zhang Yici entering drying machine 5 as a formation; We only need know the position of the head of the queue and the tail of the queue of formation so, and this has also just confirmed the position of this entire team's plasterboard 6.
Known whether have plasterboard 6 to get into after, also need know the plasterboard 6 that has got into the distance how far of having advanced forward, this has accomplished in many ways.That expect the most easily is s=vt, promptly utilizes the speed of drying machine 5 and the time computed range that plasterboard 6 is advanced, and this method seems simply to have any problem but implement, can be more loaded down with trivial details.Reason mainly contains 3 points: the one, and the speed of drying machine 5 main transmissions can change along with main line speed, and this makes troubles to calculating; The 2nd, the measurement of speed itself just is not easy to survey accurately; The 3rd, also need Measuring Time, this also has error, comes computed range with original just existence than the speed of mistake and the measured value of time, and error can be bigger.Adopt the method for direct measuring distance here.A pitch sense switch 21 is installed on drying machine 5 main transmission chains, the main transmission chain pitch of whenever advancing, pitch sense switch 21 sends a signal; PLC notes the number n of pitch sense switch 21 signals; Multiply by pitch c again, just obtain apart from s, i.e. s=cn.
PLC handles the signal that collects, work below main the completion: the head of the queue tail of the queue is judged, travel distance calculates, carry out shifting function, abnormal conditions processing etc.
When first group of plasterboard 6 passes through to distribute bridge 11, distribute pulse signal of bridge 11 optoelectronic switches, 12 outputs, activate the plate display routine, system starts working.At this moment system thinks that the head of the queue of plasterboard 6 formations arrives, and the pitch n that begins the main transmission chain is passed by counts, and the result is stored.Through in-site measurement, the long c=0.288 rice of pitch, the travel distance s=cn=0.288n of first group of plasterboard 6 so.The post operation personnel distinguish the position of plasterboard 6 fast for ease; Drying machine 5 is divided into 75 junior units; Number from front to back each unit, compiles to be 1-75 number, and door with drying machine 5 is corresponding one by one just for this; The post personnel know at a glance plasterboard 6 is gone to which number door of drying machine more than 5 districts, and are very convenient.Each width of drying machine 5 is basic identical, is 2 meters, and the gate-width degree in the place that a few district and district have a common boundary is not 2 meters, and what have surpasses 2 meters, and 2 meters of the less thaies that has according to compensation principle, can be approximately 2 meters.Like this, just promptly to belong to a sequence number be m=s/2=0.288n/2 in the position of head of the queue in traveling process for first group of plasterboard 6, whenever advances 2 meters forward, and the sequence number of door will add 1.
The judgement of tail of the queue: if distribute bridge 11 that the plate process is arranged always, advance plate optoelectronic switch 12 at every turn and all can send a pulse signal, formation constantly extends, and system can think that tail of the queue does not arrive; Cause distributing bridge 11 no longer to advance plate if reason such as useless is put in disconnected paper of a control or two controls, then optoelectronic switch 12 do not advance plate during this period of time in can not send signal always, this moment, system can think that tail of the queue arrives, and made corresponding processing.How long do not advance plate and represent that tail of the queue arrives? Drying machine 5 has 8 layers; Distribute bridge 11 to distribute when advancing plate according to 1,3,5,7,8,6,4,2,1 order; One deck advances plate for twice and is about 110 seconds blanking time during ordinary production; If advance the plate time so for twice greater than 110 seconds, plasterboard 6 formations of this one deck will be interrupted, i.e. the tail of the queue of formation arrives.In actual production, through debugging, this time be made as 120 seconds proper, do not advance at interval plate more than 120 seconds, system thinks that tail of the queue arrives.
The position of the data of packing into gets into the position formation, and data move in whole formation, last position of data in the removal formation.When step by vacation during to true the variation, enable bit is set and data block is moved to position of low level.The position of bit address appointment is moved and gets into last bit position.First is moved out of formation and is stored in the drawing off in the position of control element state byte, and displacement is accomplished.
The data queue that available 75 binary numbers are formed representes 75 doors of drying machine 5, with " 1 " expression plate is arranged in each unit, with the no plate of " 0 " expression.After beginning into plate; System representes that with " 1 " shift-in data queue No. 1 door has plate, is converted into a sequence number according to the actual range that measures; Whenever the pass by distance of a door of plasterboard 6; System will be in real time with " 1 " or " 0 " shift-in data queue, and legacy data all moves forward one, representes the plasterboard 6 formations door of having advanced forward like this.Concrete shifting process is: multiply by the long c of pitch with pitch number n and obtain apart from s, obtain the door sequence number m that head of the queue arrives divided by 2 again, this value and shift count buffer memory are compared; The former deduct the latter if the result more than or equal to 1; Explanation plasterboard 6 after last time displacement door that advanced is again carried out a shifting function, and data queue is moved forward one; The shift count buffer memory adds 1 simultaneously, carries out shifting function next time when plasterboard 6 is passed by a door more by the time.The accumulated value of individual count device is understood zero clearing after reaching preset value, but can not empty data queue, and the preset value of counter is set according to drying machine total length and door number.
Representing that with displacement advancing of plasterboard 6 formations is only, also is the simplest method, its according to the actual travel distance that measures with data queue toward reach, with advancing of plasterboard 6 be synchronous.The more important thing is that it has obvious superiority when handling the discontinuous a plurality of formation plasterboard 6 that produces when advancing plate.Represent advancing of plasterboard 6 if need not be shifted, such as the method for taking to each unit assignment, certain door has plate to give this binary digit assignment 1, and no plate is given this assignment 0.Like this can be very loaded down with trivial details, plasterboard 6 door of whenever passing by just must Update Information, and whether have plate, also will carry out assign operation 75 times if needing to calculate each door, and operand is very big, can take a lot of processor resources, and efficient is low, and programming is also very complicated.
Native system has also designed exception handler, is primarily aimed at that drying machine 5 promptly stops, the processing of the abnormal conditions of closure plate.Also have plasterboard 6 but main transmission when stopping in 5 li in drying machine, data queue and actual conditions are synchronous, also can suspend to move forward, and when main transmission recovered to turn round, data queue can move forward along with plasterboard 6 advances synchronously.If the situation of closure plate in the drying machine 5 takes place for some reason, at this moment the plasterboard 6 in the drying machine 5 is improper motion, and the cleaning drying machine needs to stop.Native system has designed manual Protection Counter Functions, and through the clear data data of formation of manual zero clearing, the bad plates in this and the labor cleaning's drying machine 5 are corresponding when drying machine 5 closure plates, and system can devote oneself to work again when drying machine 5 turned round again after the zero clearing.
The work of display part is mainly accomplished on display module 4 (host computer) picture.Utilize the RSview32 configuration software, the sketch map of drying machine 5 respectively being distinguished each is drawn on the picture, represents 75 doors of drying machine with 75 little rectangles, representes to have plate still not have plate with different colours, and green expression has plate, the no plate of red expression.Data queue in 75 little rectangles and the PLC program is one to one, green red respectively with program in " 1 ", " 0 " corresponding.The chain rupture that has also designed drying machine on the picture indication of reporting to the police, according to the normal speed of drying machine 5 main transmissions, the main transmission chain is walked a pitch about 9 seconds; Pitch sense switch 21 sends a pulse signal, if exceed during this period of time near switch no signal always, the stall of main transmission chain is described; If drying machine 5 main transmission run signal also exist; Then the transmission fault has taken place in explanation, this maybe since chain rupture or closure plate cause, answer hard stop, check to the scene.Also designed manual reset button on the picture, and enclosed operating instruction, used manual zero clearing to empty data when after the cleaning of drying machine 5 closure plates, producing again, system is reworked.
In sum; More than being merely preferable case study on implementation of the present invention, is not to be used to limit protection scope of the present invention, therefore; All any modifications of within spirit of the present invention and principle, being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.