Abstract:
A kind of membrane valve controller of a dust-collecting device, mainly comprises a count conduction control template and a extending template so as to provide a applied structure which can realize modular extending unlimitedly, and accurate count control of the conduction time and the interval jump time of various sets of switches, and an enhancive differentia pressure and subsection design, which can alter the conduction time of control switch connected behind based on the measured value to, and continuing to execute repeating several spouting cleaning, which can facilitate the effect of cleanout.

Description:
BACKGROUND—FIELD OF THE INVENTION 
   The invention relates to a structural improvement of the controller of a dust-collecting device, especially to the controller of membrane valve for a dust-collecting device which can realize modular extending unlimitedly, and accurately count control of the conduction time and interval jump time of various sets of switches, and an enhancive differentia pressure subsection design, which can alter the conduction time of control switch connected behind based on the measured value, and continuing to execute repeating several spouting cleaning, which can facilitate the effect of cleanout. 
   BACKGROUND—DESCRIPTION OF THE PRIOR ART 
   The typically dust-collecting device is provided with a couple of filtering bags arranging in an array. During the dust-cleaning manipulation, they are disposed row by row and staggeringly implemented, when one row of the filtering bags are cleaned, the other rows can maintain the usual action, ensuring the regular function of the entire dust-collecting device without swaying pausing. 
   For the sake of managing on the regular operation of the product line and maintaining the dust-collecting device so as to keep the regular filtering function within a period time, it is a very important work for the membrane valve to periodically provide the spouting air to implement the elimination of dust. Each the dust-collecting device is configured a control electro circuit board, on which the point to joint with the detector is arranged to connect the back inductor so as to facilitate the machine board to operate periodically and exert the elimination of dust of the connecting filtering bags. To realize the excellent effect of dust cleaning and economize the pressed air, it is necessary that the storing air pressure is quite high, and the adoptive membrane valve controlling the air conduction is able to be switched on or off in an instant. 
   With respect to the conventional membrane valve controller, each board control terminal is limited and can not be extended optionally, moreover, since the conduction time and the interval jump time is manually controlled with the knob, during the course of operation it is only through the flashing of the indicator light to decide which set of magnetic valves is operating, as result in a discrepancy among magnetic valves controlled by each board is generated, and further induce the output of wind is different, therefore it lead to fail to provide a consistent and steady movement, and a failed automatic adjustment according to the pressure. Besides, it cannot realize accurate control the air providing and consequently the energy is wasted. 
   Moreover, theoretically it is very convenient to take chance of the induct halt of the windmill to clean dust, which can achieve a preferable cleaning effect. However, since the measure of automatic repeated delay of blowing and filtering is not taken on the board body during the usual down time, once to take the chance to enhance the implementation of the cleaning of filtering bags, it may only resort to the manual operation or additional control by extra counter, as is very discommodious. 
   Therefore, to overcome the said disadvantages, the present inventor make a deep research and modification, and practiced many experiments, finally developed the invention. 
   The main object of the invention is to provide a kind of membrane valve controller of a dust-collecting device characterized by being able to modular extended unlimitedly, and realize an accurate count control of the conduction and interval jump time of various sets of switches. 
   The second object of the invention is to provide a kind of membrane valve controller of a dust-collecting device, which can continue to repeatedly execute several turns of cleaning and spouting according to the predetermined count value, so as to enhance the cleaning effect. 
   Another object of the invention is to provide a kind of membrane valve controller of a dust-collecting device with differentia pressure and subsection design, which can change the conduct time of the control switch connected behind. 
   SUMMARY OF THE INVENTION 
   To achieve the object described above, the invention provides a kind of membrane valve controller for a dust-collecting device comprising a count conduction control template and an extending template. Therefore it is provided an applied structure which realizes modularly extending unlimitedly and the accurate count control of the conduction time and interval jump time of various sets of switches, enhancive design of a differentia pressure subsection, which is used to alter the conduction time of the control switch connected behind according to the measured value, and is capable of continuing to repeatedly execute several turns of spouting and cleaning with respect to the predetermined count value during down time, so as to facilitate the dust-cleaning effect. 
   The structure and other characters of the invention will be clear after reading the following detailed description of the embodiments with reference to the drawings. 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
       FIG. 1  shows the block diagram of the count conduction control template according to the present invention. 
       FIG. 2  shows the block diagram of the extending template according to the present invention. 
       FIG. 3A  shows the rear view of the circuit board of the control template according to the present invention. 
       FIG. 3B  shows the elevation of the circuit board of the control template according to the present invention. 
       FIG. 4  shows the elevation of the extending template circuit board according to the invention. 
       FIG. 5  shows the block diagram of the inductive template according to the invention. 
       FIG. 6A  shows the rear view of the circuit board of the inductive template according to the present invention. 
       FIG. 6B  shows the elevation of the circuit board of the inductive template according to the present invention. 
       FIG. 7  shows the view of the embodiment with optional serially extending template according to the present invention. 
       FIG. 8  shows the view of the embodiment according with the present invention connected parallelly with each rows after being extended serially. 
       FIG. 9  shows the view of the embodiment according with the present invention under another connection method of parallel multi-rows. 
   

   DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
   As illustrated in  FIG. 1  to  FIG. 9 , the present invention provides a kind of membrane valve controller of a dust-collecting device comprising a count conduction control template  1  and an extending template  2 , in which 
   on the control template  1 , a CPU  11  is arranged to connect with the display panel  12 , designated switch  13 , a plurality of circuits  14  of relay switch, a control terminal set  17  connecting a extending template  2  in the rear, and a serial overflow receipt terminal  18  to receipt the count message from the serial extending template  2 ; and 
   on the extending template  2 , a CPU  21  is arranged to connect with a plurality of relay switch circuits  24 , and a serially connected control port  25 , which is configured a serial overflow receipt terminal  26  to receipt the count message from the serial extending template  2 . 
   For further detailed description, a CPU 21  is arranged on the extending template  2  to control the under connected a plurality of transistor  241  and control the relay  4 , so as to execute conduction operation. 
   The interior of the count conduction control template  1  is arranged a repeated accumulative count unit  80  with automatic function of reset, which is mounted at inside of the CPU 11  to count the number of the controlled conduction relay  4  connected with the rear of the template one by one, furthermore in which 
   a control conduction time unit  81  is arranged in the interior of the CPU  11  controlling the conduction time of each switch circuit  14  ranging from 0.01 to 999. 
   A control interval time unit  82  is arranged in the interior of the CPU  11  to control the interval jump time of each switch circuit  14  ranging from 0.01 to 999. 
   A automatic repeated control unit  83 , is arranged in the interior of CPU  11  to drive the machine to take a plural times of automatic repeated operation during down time, in which the repeated conducting times may be 1˜9. 
   The said three units are respectively arranged a seven-section display of own counter to compose said display panel  12  and designated switch  13  knob. 
   Additionally, an inductive template  3  with a function of subsection detecting can be mounted in the front of the count conduction control template  1 , on the top of which arranged a CPU  31  to connect with the display panel  32 , the designated switch  33 , and the plural relay switch circuit  34 , an A/D conversion circuit  35 . On the one end of the panel a detect receipt terminal  36  is arranged to receipt the electric message from the inductor  9 . Once the message is converted by the A/D and is computed by the CPU  11  through checking up the table, then the control connect foot  5  according to various period of conduction time is generated. A plural indicator light  6  corresponds to different period of conduction time. According to the control connect foot  5 , four control points is arranged in the interior of the CPU  11 , in which the first point is the standard period of time, and the second period of conduction is ⅔ period of standard time, the third period conduction is the ⅓ standard period of time, and the forth period is used to control the whistle of siren  7 . Moreover, the said display panel  32  comprises a couple of seven-section LED displays, the count scale is from 0 to 999. 
   Therefore, the count conduction control template  1  can be connected serially with extending template  2  to cooperate. Each extending template  2  can be connected in the rear with at least ten groups of membrane valves. Even the system serially connected with a number of extending templates  2  can be aligned transversely and communicated with each other to control simultaneously, as is further illustrated referring to  FIG. 8  of drawings. Or by parallel extending of the conduction control template  1  as illustrated in  FIG. 9 , each branch circuit can set different jump and conduction time respectively. Hereby, the configuration of optional modular groups can extend unlimitedly, and can be employed to various dust-collecting device of different sales. 
   After being combined together entirely, the controller can realize the following function: 
   a The serial control port  25  of extending template  2  is configured a serial overflow receipt port  26 , and the count conduction control template  1  is also arranged a serial overflow receipt port  18  to receipt the count message from the serially connected extending template  2 , as enable the repeated accumulative count unit  80  with function of automatic reset arranged in the interior of the count conduction control template  1  to count and display by which set of relay  4  the present connecting extending template  2  is conducted. 
   b During conduction time, the count conduction control template  1 , the display panel  12  and the designated switch  13  connected with CPU  11  can be used together to control the conduction time unit  81 , further to control the conduction time of each switch circuit  14  and the design of the interval time unit  82 , so as to control the switch interval time of each switch circuit  14 . 
   c After being converted by A/D, the transferred value from inductor  9  is converted by CPU 31  through checking up the table, then various differentia pressure conduction time slices are generated so as to realize automatic preferable adjust of the conduction of the membrane valve, meanwhile the display unit can be adjusted arbitrarily according to the scale of the inductor  9 , for example 
   The first section is relatively cleaned and the differentia pressure measured is little, the differentia pressure is about 100˜200. Then the membrane valve controlled by the rear connected extending template  2  groups is set to spout and clean once each three minutes. If the differentia pressure is lower than 100, the cleaning is not implemented. 
   The filtering bags of the second section is more seriously accumulated than the fist section, the spouting and cleaning is required to be executed within little time, the differentia pressure is above 200 to 400, and one third of the predetermined value is detracted making the execution once two minutes. 
   The third section, when the differentia pressure is above 400˜600, again one third of the predefined value is detracted to make the execution once one minutes. 
   With respect to the forth section, the differentia pressure surpasses 600 of the number section limit, Alme alarm is conducted or take another back section to process. 
   d Attributing to the automatic repeated control unit  83  configured in the entire combination, the machine body can implement automatically a plurality of repeated cleaning operations during down time, and the repeated conduction times can be optionally defined. Therefore, the controller may keep the membrane valve serially connected to repeat move several times before stop by the automatic repeating system, when the windmill is closed under no burden state, so as to achieve the better effect of filtering completely. 
   As described above, the invention may overcome the shortcomings of membrane valve controller of the conventional dust-collecting device, besides, its function ascend greatly the prior technology and is progressive and of industrial apply value, hence the invention apply is presented legally. 
   The preferable embodiment is used to illustrate the object, character and function in detail. It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described.