1. Kartonni yopishtirish
(1) Bog'lanishning ahamiyati
Ishonchli bog'lash gofrokarton ramkaning xususiyatlarini shakllantirish va saqlash uchun zarur, shuningdek, oxirgi gofrokarton qadoqlash sifati uchun ham muhimdir. Yomon yopishtirilgan karton boshqa post{0}}qayta ishlash uskunalarini bloklab qo‘yishi yoki to‘xtatib qo‘yishi, ishlab chiqarish xarajatlarini kamaytirishi mumkin.
(2) Bog'lanish sifatini tekshirish
PAT usuli - laboratoriyada bog'lanish sifatini o'lchash usuli. Haqiqiy ishlab chiqarishda gofrokarton ishlab chiqarish liniyasidagi operatorlar odatda kartonning yopishtirish sifatini tekshirish uchun astar qog'ozini yirtib tashlashadi. Agar bog'lanish yaxshi bo'lsa, astar qog'ozi Gofrirovka qilingan yadro qog'oz tolasining bir qismi yuqoriga yopishtirilgan bo'lishi kerak; agar bog'lanish yaxshi bo'lmasa, astar qog'ozi va gofrirovka qilingan yadro qog'ozi butunlay ajratiladi.
(3) Yomon yopishish sabablari
(1) Bir tomonlama mashinada kartonning yomon yopishish sabablari
① Occurs at the edge of the cardboard
a. Pastki gofrirovka rulosi va bosim roliklari orasidagi bosim etarli emas.
b. Pastki gofrirovka rulosi va bosim rulosining parallelligi og'ishgan
② Occurs in the middle of the cardboard, and the middle of the corrugating roller is worn due to the change of the width of the cardboard, resulting in insufficient supply of adhesive.
③ Occurs over the entire width of the cardboard
a. Yelim tsilindrni va shifokor roliklari orasidagi bo'shliq to'g'ri o'rnatilmagan, natijada yopishqoq plyonka etarli emas (juda nozik).
b. Yelim rulosi pastki gofrirovka qilingan rolikdan juda uzoqda.
c. Yelim tepsisidagi yopishtiruvchi darajasi juda past.
d. Yopishqoq sifati yaxshi emas.
e. Gofrirovka rulosining harorati etarlicha yuqori emas.
f. Bosim rolikining bosimi notekis yoki etarli emas.
g. Yopishqoq qoplamaning etarli emasligi, qog'ozni oldindan isitishning etarli emasligi, oldindan isitgichning o'rashining etarli emasligi yoki haroratning etarli emasligi.
h. Qog'ozning namligi juda yuqori, oldindan qizdirgich va gofrirovka qiluvchi yadro tayyorlagichdagi o'rash burchagi yetarli emas yoki bir tomonlama mashinaning tezligi juda tez.
(2) Ikki tomonlama mashinada kartonning yomon yopishtirilishining sabablari-
① Occurs in the middle of the cardboard
a. Yagona qirrali gofrokartonning keskinligi{0}}yo‘naltiruvchi rolikni (suzuvchi rolik) haddan tashqari og‘ishiga olib keladi, natijada yopishtiruvchi qoplama yetarli emas.
b. Shamollatish moslamasi bu muammoni issiqlik kengayishi tufayli cheklab qo'yishi mumkin, u issiq taxtaning o'rtasida joylashgan kartonga etarlicha bosilmaydi.
c. Kartonning markazida bug'lanishning etarli emasligi sababli, yopishtiruvchi to'liq jelatinlangan bo'lishi mumkin emas, agar issiq plitaning harorati oshirib bo'lmasa, yagona usul tezlikni kamaytirishdir.
② Occurs over the entire width of the cardboard
a. Yopishqoq qoplamaning etarli emasligi, oldindan isituvchi o'rashning etarli emasligi, kamar bosimining etarli emasligi, juda tez tezlik yoki juda past issiq plastinka harorati.
b. Yopishqoq plyonka etarli emas.
c. Yopishqoq sifati past.
2. Yuvish taxtasi hodisasi
Yuvish taxtasi hodisasi-deb atalgan gofrokarton yuzasida gofrokarton va gofrokartonning orqa tomoni orasidagi botiq hodisani bildiradi va u tayyorlangandan keyin uning shakli uy yuvish idishiga o'xshaydi, shuning uchun u yuvish taxtasi hodisasi deb ataladi.
(1) Gofrokartonning yuvish taxtasi hodisasining asosiy sababi:
Buning asosiy sababi yopishqoqning noto'g'ri yopishtirilishi bo'lib, cho'qqilarning har ikki tomonida to'plangan ortiqcha elim tufayli yuzaga keladi. Bu, ayniqsa, past og'irlikdagi konteynerlar uchun to'g'ri keladi.
(2) Karton yuvish plitasi fenomenini nazorat qilishning o'ziga xos usullari quyidagilardan iborat:
① Adjusting the quantitative of the face paper and using a containerboard with a higher quantitative basis is a direct and effective way to eliminate and reduce the washboard shape (but it will increase the cost);
② The use of high-quality adhesives can reduce the amount of glue applied to the peaks;
③ Control the heating and winding surface of the tissue paper on the pre-heater, because the linerboard paper is too dry, the intake of glue is large, and the phenomenon of washboard is easy to occur;
④ Adjust the parallelism of the glue roller and the paper guide roller of the compound glue machine and the gap between them, and strictly control the pressure degree of the guide roller (pressing roller) to prevent the increase of the amount of glue after the corrugation collapses.
3, teskari
(1) Bir qirrali{1}}karton teskari
Sabablarni tahlil qilish:
① The corrugating roller is worn;
② The gap between the upper and lower rollers is too large;
③ The weight of the tile paper is too large and too thick;
④ The water content of the tile paper is too large;
⑤ The tile paper has poor plasticity without preheater.
Yechim:
① Replace the tile roller or grind it;
② Adjust the gap between the two rollers to 0.5mm;
③ Replace the corrugated paper;
④ Increase the preheated wrapping angle of the tile paper;
⑤ Pass the tile paper through the preheater.
(2) Ikki tomonlama{1}}karton teskari
Analysis of the reasons: ① The backing after gluing by the double-sided machine is caused by the too small gap between the gluing roller and the ballast roller; ② The floating ballast roller on the conveyor belt cannot move freely up and down after the drying machine. And press the corrugated deformation; ③ the amount of glue is too large, the corrugated paper absorbs a lot of water in the glue and becomes soft, and it falls to one side along the running direction of the dryer; ④ the quality of the corrugated paper is inferior.
Solution: ① Adjust the gap between the double{{0}}sided machine, the ballast roller and the gluing roller to be slightly smaller than 0.2mm of the single-sided cardboard, and insert the single-sided cardboard longitudinally between the ballast roller and the gluing roller, which can be freely It is better to insert and drive the ballast roller to rotate the corrugated without deformation; ②Adjust the floating roller on the conveyor belt of the dryer to move freely; ③Reduce the amount of glue applied to evenly distribute the corrugated peaks without flowing into the trench; ④ Replace the corrugated paper.