Rolled Hem Ua Haujlwm Qhia rau Overlock Tshuab

Taw qhia

Rolled hem (micro hem / lettuce hem, namely the dense narrow serging in garment production) is a core finishing function of 3-thread overlock machines, widely applied to chiffon, silk, knitted jersey, swimwear and lingerie to form compact, curled, fray-proof fabric edges. Compared with standard overlock, rolled hem shrinks stitching width, shortens stitch density and adjusts thread tension to wrap raw fabric margin inward automatically for exquisite decorative edge finishing, which greatly improves garment grade and wear durability. Feem ntau cov kev lag luam thiab tsev neeg 3/4-xov sergers tuaj yeem hloov mus rau dov hem hom ntawm stitch finger retraction thiab parameter calibration.

1. Kev npaj ua ntej xaws

1.1 Xov & Koob Matching

Xov xaiv: Siv woolly nylon textured xov rau lub voj voog qaum kom sau cov npoo npoo plam; zoo tib yam siab -strength polyester xov rau koob thiab qis looper yog tus qauv collocation. Woolly xov txhim kho cov nyhuv fluffy zoo nkauj rau cov ntaub elastic zoo li lace thiab knit.

Koob specification: 75/11 zoo koob rau lub teeb yuag, chiffon; ballpoint koob rau stretch knit; 90/14 koob rau nyias denim thiab tuab woven ntaub; hloov blunt los yog puas koob tsis tu ncua kom tsis txhob hla stitches thiab ntaub pinholes.

Test daim ntaub: Npaj cov khoom seem ib yam li cov ntaub ntau lawm los debug tag nrho cov tshuab tsis ua ntej xaws.

1.2 Basic Machine Pre-set

Hloov dov hem hloov dua siab tshiab kom rub rov qab cov ntiv tes plooj tag; tus nplaig hauv qab koob phaj retracts tshem tawm ntug kev txhawb nqa, ua kom cov ntaub ntug sab hauv dov thaum pub mis.

Retract movable trimming riam tsim nyog kom nqaim txiav dav mus rau 2-3mm rau ultra- nqaim ntom hemming.

2. Core Parameter hloov kho rau Rolled Hem

2.1 Thread Tension Setting (Key Calibration)

Koob xov nro: 3.0-4.5 (me ntsis xoob los tiv thaiv cov ntaub longitudinal puckering)

Upper looper nro: 3.5-5.0 (nruab nrab so)

Lower looper nro: 6.0-8.0 (tighten obviously rub qaum looper xov wrapping rau ntaub hauv qab, tsim curled ntug)

Kho maj mam nyob rau hauv 0.5 scale increment; Yog hais tias ntug tsis yob nruj nreem, ua kom qis looper nro kom zoo.

2.2 Stitch Length & Dav

Stitch ntev: 0.5-1.2mm rau ntom compact hem; luv luv rau tuab tuab, 1.2-1.8mm rau mos xoob lettuce ntug.

Stitch dav: Txo qhov dav dav rau 2-3 hli tom qab kev hloov kho riam rau micro dov nyhuv.

2.3 Qhov sib txawv pub noj

Teem qhov sib txawv ntawm 1.3-2.0: qhov sib piv ntau dua sib sau ua ke cov ntaub me me los pab ntuj ntug dov; 1.3–1.5 rau nyias nyias, 1.6–2.0 rau stretch knit kom tsis txhob wavy tshaj -puckering los yog flat non- dov ntug.

3. Kauj Ruam - los ntawm - Kauj Ruam Ua Haujlwm

Teem cov ntaub rawg tawm tsam tshuab ntug qhia, khaws cov ntaub tiaj tus yam tsis muaj rub lossis nias quab yuam los ntawm tes; Kev rub ntau dhau ua rau qhov tsis sib xws hem dav thiab ncab deformation.

Pib qeeb- nrawm nrawm, ua kom nrawm nrawm nrawm; tuav ntaub maj mam pem hauv ntej thiab nram qab ntawm presser ko taw kom tsis txhob shrinkage.

Rau cov npoo nkhaus (neckline, armhole), txo qhov nrawm nrawm thiab viav vias ntaub maj mam ua raws li radian kom ua raws qhov nqaim dav dav.

Ua kom tiav stitching, txiav xov nrog trimmer thiab tshuaj xyuas cov ntug tiav: zoo huv si dov curl tsis xoob xov loops los yog raug ntaub raw.

4. Kev daws teeb meem txhaum cai

表格

5. Daim ntawv thov Scope & Cov lus qhia txog kev tu

Daim ntawv thov Scenario

Rolled hem yog qhov zoo tshaj plaws rau cov ris tsho hauv qab hem, txoj phuam qhwv caj dab, lub tsho cuff, swimwear trim, lace edging thiab zam khaub ncaws zoo nkauj ciam teb; unavailable rau hnyav tuab canvas thiab tawv ntaub nrog tsis yooj yim.

Kev tu txhua hnub

Ntxuav lint thiab xov khib nyiab hauv lub voj voog thiab rab riam txhua hnub; ntxiv cov tshuab xaws cov roj rau cov khoom txav txhua txhua 8 teev ua haujlwm kom lav qhov ruaj khov thiab ua haujlwm ntev.