Yelula ifilimu yokupakisha ukuvikela amandla kagesi kagesi.
Njengenye ye-vacuum ezenzakalelayo
umshini wokupakisha umshini wokupakisha wefilimu onwebekayo, izinjini zawo zangaphakathi noma izingxenye zikagesi zisebenza ngaphansi kwe-voltage elinganiselwe, i-voltage iphezulu kakhulu, iphansi kakhulu noma isici somuntu esisemsebenzini siphelelwa amandla kungazelelwe, singadala umonakalo emishinini noma ezingozini zabasebenzi, ngakho-ke umklamo wesekethe yokulawula ugesi, ngokwezidingo zangempela, ukusetha ukuvikelwa, ukuvikelwa kwe-overvoltage kanye nokulahlekelwa kwengcindezi ngaphansi kokuvikelwa kwamandla kagesi.
1.
Ukuvikela ifilimu yokupakisha i-voltage kagesi enguziro, ukuvikelwa kwamandla kagesi aphansi
ukwelula ifilimu ukupakisha ukuvikelwa mechanical kanye kagesi voltage.
Umshini wokupakisha we-stretch vacuum wefilimu uma kwenzeka kuba negridi yamandla emsebenzini ngokuphazima kweso, injini izoma, futhi izomisa ukukhiqizwa kwezingxenye ezinyakazayo.
Ngokuvamile opharetha abakwazi ukudonsa ngesikhathi esifanele ukuvula iswishi yamandla, uma kungenziwa lutho, lapho i-stretch film vacuum packaging mechanical kanye ne-electrical source voltage ibuyela kokujwayelekile, injini izoqala ngokwayo, cishe ibangele abaqhubi nezingozi zemishini, futhi amandla phezu kwamanje kanye nokwehla kwe-voltage yenethiwekhi ngokushesha.
Ngakho-ke udinga ukuthatha izinyathelo zokuvikela i-voltage engu-zero.
kulayini wokupakisha we-vacuum kagesi olawula i-tensile membrane, i-voltage engu-ziro nge-contactor kanye nokuvikela okudluliswayo okuphakathi.
Lapho ugesi wegridi uphela, i-contactor kanye ne-intermediate relay current yanyamalala, i-contactor reset kabusha, ukunqamula isekethe enkulu nokulawula ukunikezwa kwamandla wesekethe.
lapho ifilimu enwetshiwe yokupakisha i-voltage yomthombo kagesi ibuyela kokujwayelekile, uma ungacindezeli inkinobho yokuqala, i-motor ngeke iqale ngokwayo, nokuvikelwa kwe-voltage engu-zero lapho i-voltage yegridi, injini izosebenza ngaphansi kwe-voltage, ijubane lemoto lehla. , i-stator winding current yengezwa.
Ngenxa yokuthi awekho umthamo we-amplitude owanele owengeziwe ukwenza i-fuse kanye nesenzo sokudlulisa okushisayo, asinikeziwe isivikelo, ngakho-ke lezi zinhlobo ezimbili zezinto zikagesi uma zingathathi izinyathelo zokuzivikela, zinwebeka zizoshisa kakhulu umonakalo wemoto ngokuhamba kwesikhathi.
ngakolunye uhlangothi, i-voltage ekweleta izobangela ukukhululwa kukagesi, yenza isifunda kungasebenzi, kungaholela engozini yomuntu siqu kanye nemishini.
Ngakho-ke kufanele ugweme ukusebenza kwe-motor ngaphansi kwe-voltage engaphansi.
into esebenza ngempela kagesi evikela i-voltage ephansi iyi-electromagnetic voltage relay kanye ne-contactor.
Kusekhethi yokulawula kagesi yokupakishwa kwefilimu enwetshiwe, imigqa embalwa kuphela efake i-relay ekhethekile kagesi kagesi enendima yokuvikela i-voltage ephansi, futhi ngenxa yokuthi iningi lesixhumi esithinta isifunda sokulawula futhi linomsebenzi wokuvikela amandla kagesi aphansi, ngakho-ke ungangezi ukuvikelwa kwamandla kagesi aphansi. izinto zikagesi, ngokuvamile lapho i-voltage yegridi yehliswa ibe ngaphansi kwamaphesenti angamashumi ayisishiyagalombili nanhlanu we-voltage elinganiselwe, isixhumi se-voltage relay contactor noma isenzo, ukuze kunqandwe isekethe enkulu nokulawula ukunikezwa kwamandla wesekethe, kwenza injini ime.
2.
Yelula ifilimu ukupakisha ukuvikelwa mechanical kanye kagesi voltage ukuvikelwa overvoltage
ukwelula ifilimu ukupakisha ukuvikelwa mechanical kanye kagesi voltage.
I-electromagnetic, i-sucker kagesi nezinye izinto ezinkulu zomthwalo we-inductance kanye nezikhungo zika-electromagnetic ze-dc, i-dc relay, njll. Ngokuvamile, izokhiqiza amandla aphezulu okungenisa i-electromotive amandla, izokwenza ukuphahlazeka nokulimala kwekhoyili ka-electromagnetic.
Ngakho-ke udinga ukwamukela ukuvikelwa kwe-overvoltage.
Imvamisa yesekethe yokuxhumana yomshini wokupakisha ifilimu, i-resistor ne-capacitor ngokuhambisana kuzo zombili iziphetho zekhoyili, yesekethe ye-dc, ku-diode ngokuhambisana kuzo zombili iziphetho zekhoyili, ukuze kwakhiwe isekethe yokukhipha, ukuvikela ukugcwala ngokweqile. .
Ukuncika okwandayo ekusetshenzisweni kwe-weigher checkweigher kwenze izinguquko eziningi embonini yesisindo se-multihead emashumini eminyaka adlule.
Ngaphezu kwakho konke, silindele ukuba udumo emiphakathini esiyisebenzelayo, isisetshenziswa esibalulekile kumakhasimende ethu, nendawo lapho isikali sethu esizinikele singakhula futhi sichume.
Isisindo somshini wokukala siwuhlelo lwe-servo yonke olukwazi ukugcina amakhulukhulu emingcele yenqubo ye-checkweigher ukuze kuhlinzekwe amaphrofayili esikalo se-multihead ohlotsheni ngalunye lomshini wokukala kanye nokucushwa kwe-checkweigher.
I-
multihead weigher ingase ishintshwe ukuze isetshenziswe kunoma yimuphi umshini wokukala futhi ifanele i-checkweigher.
