Sewing Machine Thread Tension Adjustment / Podešavanje Zategnutosti Konca

One of the very important items when working on the machine, when sewing, is the correctly adjusted tension of the upper and lower thread, respectively. Proper tension is extremely important for the quality of the stitch-stitch, of course considering that everything else is on the machine office.

Tightening the tension is a very "tangible" job and often beginners give up the adjustment very quickly, certainly the routine is gained with time and experience, in any case be persistent. In this topic, I will try to explain how to do it the easiest way.

Jedna od veoma bitnih stavki pri radu na mašini, pri šivanju je i pravilno podešena zategnutost gornjeg, odnosno donjeg konca. Pravilna zategnutost je od izvanrednog značaja za kvalitet štepa-boda, naravno smatrajući da je sve ostalo na mašini uredu. Podešavanje zategnutosti je veoma "opipljiv" posao i često početnici vrlo brzo odustanu od podešavanja, svakako rutina se stiče vremenom i iskustvom, u svakom slučaju budite uporni. U ovoj temi ću pokušati objasniti kako to najlakše uraditi.

Fig. 1 shows the correctly adjusted tension, the figure clearly shows that the "loop" in the middle of the two joined materials. Fig. 2 shows what happens when the upper thread is too tight, the "loop" of the thread on the surface of the material, so in this situation it is necessary to tighten the lower thread or release the upper one, it all depends on the given situation. In the picture above, which shows the bobbin case, the arrow points to a small screw that adjusts the tension of the lower thread, which requires a very small and thin screwdriver and loosen or tighten the screw in small movements. Some models do not have a chuck at all, but the coil is placed directly in the grapple, and the tension of the lower thread is adjusted on the grapple itself.

The following figure shows one standard position for adjusting the tension of the upper thread (upper thread tensioner, large tensioner). Situations that can occur regarding the tension of the thread and the upper and lower are numerous, moreover, the stitch can be relatively correct but weakly tightened, when in that case you take the two ends of the material and pull on the opposite side of the stitch "zine" so to speak: ), of course this is not okay either, in which case it is necessary to slightly tighten both the upper and lower thread.

If the thread setting is OK and the thread is not properly inserted into the machine, there will be problems again, the thread on the upper tensioner must be between two "plates" and not outside, read HERE about the correct insertion and insertion of the thread into the machine.

Sl 1 pokazuje pravilno podešenu zategnutost, na slici se jasno vidi da je "petlja" na sredini dva spojena materijala. Sl 2 pokazuje šta se dešava kada je gornji konac suviše zategnut,"petlja" konca na površini materijala, dakle u ovoj situaciji je potrebno donji konac zategnuti ili gornji otpustiti, sve zavisi od date situacije. Na gornjoj slici koja prikazuje bobin kasu-čunak, strelica pokazuje na mali vijak kojim se podešava zategnutost donjeg konca, za to je potreban veoma mali i tanak izvijač a vijak popuštati ili pritezati u malim pomacima. Pojedini modeli uopšte ne posjeduju čunak već se bobina direktno postavlja u grajfer a na samom grajferu se vrši podešavanje zategnutosti donjeg konca. Na sledećoj slici je prikazana jedna standardna pozicija za podešavanje zategnutosti gornjeg konca (zateznik gornjeg konca, veliki zateznik).
Situacije koje se mogu dešavati po pitanju zategnutosti konca i gornjeg i donjeg su mnogobrojne, čak šta više, štep može biti relativno pravilan ali slabo zategnut, kada u tom slučaju uzmete dva kraja materijala i vučete na suprotnu stranu štep "zine" da tako kažem :), naravno ni to nije uredu, u tom slučaju je potrebno lagano zategnuti i gornji i donji konac. Ako je podešenost konca uredu a konac nije pravilno uvučen u mašinu, opet će doći do problema, konac na gornjem zatezniku mora da bude između dva "tanjirića" a ne izvan toga, o pravilnom uvlačenju-udijevanju konca u stroj pročitaj OVDE.

One of the situations is the complete absence of tying the upper and lower thread, the lower and upper thread are not tied - the causes are numerous (bad or misaligned grapple, incorrectly placed, short and inappropriate needle, bobbin case not well set, unprofessional machine overhaul, overtightened upper thread ... etc). Sometimes a poorly adjusted thread tension "joins" with a poorly adjusted grapple or the grapple slipped on the shaft, which further complicates the situation and then everything can be expected from the machine (the thread simply wrinkles, crumples, loops or compresses into one point ...

Jedna od situacija je i potpuna odsutnost vezivanja gornjeg i donjeg konca, donji i gornji konac se ne vežu-uzroci mnogobrojni (loš ili nepodesen grajfer, nepravilno postavljena, kratka i neodgovarajuća igla, čunak nije dobro postavljen, nestručan remont mašine, prezategnut gornji konac...itd). Ponekada se slabo podešena zategnutost konca "udruži" sa loše podešenim grajferom ili je grajfer proklizao na osovini, što situaciju dodatno usložnjava i tada je od mašine svašta očekivati (konac se jednostavno mrsi, gužva, petlja ili sabija u jednu tačku...