Lub khob khob tshuab yog ib hom ntawv ntim ntawv ua los ntawm cov ntawv hauv paus (dawb cardboard) ua los ntawm cov tshuaj ntoo pulp rau kev siv tshuab thiab kev sib txuas. Nws muaj cov yam ntxwv ntawm kev nyab xeeb, kev noj qab haus huv, lub teeb thiab yooj yim, thiab yog ib qho khoom siv zoo tagnrho rau cov chaw pej xeem, tsev noj mov, thiab tsev noj mov.
Ib daim ntawv teev cov cuab yeej ntawm lub khob khob tshuab. Txoj kev daws teeb meem yog tias nws suav nrog lub rooj zaum ua haujlwm, lub qhov khoob khoob qhib rau ntawm lub rooj zaum ua haujlwm rau daim ntawv ntawv kom dhau mus, thiab lub qhov phab ntsa ntawm lub qhov blanking yog raws cov kev taw qhia deb ntawm lub qhov blanking qhov swb zawj yog symmetrically muab nrog ib tug swb phaj. Qhov kawg ntawm qhov swb phaj kuj ze rau lub qhov blanking yog fixedly txuas nrog ib tug positioning phaj rau positioning daim ntawv. Qhov kawg ntawm qhov swb phaj kuj nyob deb ntawm qhov blanking yog muab nrog ib daim npav qhov. Cov ntsia hlau yog clamped, lub puab phab ntsa ntawm lub chute yog muab nrog ib tug haum lub qhov rau cov ntsia hlau mus hla, lub sab sauv ntawm lub workbench yog muab nrog ib tug txwv groove sib txuas lus nrog rau sab nraud, thiab ib tug kho lub tes tsho haum nrog cov ntsia hlau xov. yog teem rau hauv qhov txwv groove. Lub khob khob tshuab no tuaj yeem clamp thiab tso ntawv ntawm ntau hom thiab ntau thiab tsawg, thiaj li tsim nyog rau kev tsim cov ntawv khob ntawm ntau hom thiab ntau thiab tsawg.