Tiu lun 4PHN A. GII THIU CHUNGI. G1. nh ngha: g l dng c hoc thit b dng nh hnh, nh v cc chi tit (cc thnh phn) trong qu trnh gia cng, n lm tng nng sut, cht lng ca sn phm, gim chi ph sn xut v nng cao kh nng cng ngh ca thit b.2.Cng dng- p dng g vo trong gia cng lm tng nng sut.+ S dng g trong sn xut th nng sut khng ph thuc vo trng thi tm sinh l ca cng nhn. + S dng g trong sn xut th thi gian lm quen vi cng vic gn nh khng cn v nng sut n nh sut qu trnh sn xut. + S sn phm b hng, ti ch s t i rt nhiu khi s dng g. - Nng cao cht lng sn phm. + S dng g trong sn xut ng u ca sn phm cao hn, do t l sn phm hng, sai quy cch gim. + Cht lng sn phm khng ph thuc vo tay ngh cng nhn. - To kh nng linh hot trong sn xut: Dng g trong sn xut gip cho vic thay i dng sn phm nhanh hn cho khch hng, nht l nhng n hng c sn lng nh.- To iu kin tha cc tiu chun rng buc trong sn xut:Dng g trong sn xut th d dng t c cc tiu chun: -+ Tiu chun v qun l v m bo cht lng sn phm ISO 9000. + Tiu chun v c x x hi SA 8000. + Tiu chun v mi trng ISO 14000- Tng kh nng linh hot ha trong sn xut.- S dng tt g gip cc c s gii quyt c vn v cc tiu chun rng buc i vi cc sn phm may cht lng.- Gim cng lao ng ca cng nhn.- Gim nh s cng thng v ci thin iu kin lm vic ca cng nhn, khng cn s dng th bc cao.3. Phn loi g c chia thnh cc loi sau: g gia cng g kim tra g lp rp g gia cngDa vo dng sn xut (sn xut n chic, sn xut hng lot, sn xut hng khi), vo hnh dng v kch thc ca chi tit, ngi ta chia g gia cng thnh cc loi: g vn nng, g chuyn dng, g vn nng lp ghp, g tho lp v g vn nng iu chnh. g vn nng g vn nng c dng cho sn xut n chic, ch th, trong cc phn xngdng c v sa cha. g vn nng cho php g t nhiu loi chi tit khc nhau (c hnh dng v chi tit kh nhau). Cc g vn nng thng dng l: mm cp cc loi, too my, u phn , bn quay, mm quay v.v. g vn nng c chnh xc thp v thi gia g t chi tit ln hn so vi cc loi g khc. Tnh vn nng ca g loi ny l kh nng iu chnh cc chi tit kp cht. g vn nng lp ghp g vn nng lp ghp c s dng trong sn xut n chic (ch th) hoc sn xut hng lot nh. g loi ny c lp ghp t nhng chi tit c ch to sn v c lu gi trong kho. c mt g gia cng c th ngi ta chn mt schi tit g c ch to sn em lp ghp li vi nhau. Thi gian lp mt g trung bnh khong 2-3 gi. chnh xc gia cng chi tit trn g vn nng lp ghp ph thuc vo cht lng lp rp, mn v trng thi ca cc chi tit nh v. Vi cht lng lp rp bnh thng th chnh xc gia cng t cp 3. Cn vi cht lng lp rp cao th chnh xc gia cng c th t cp 2. Sau khi gia cng xong, tt c cc chi tit, g li c tho ri ra v chuyn vo kho bo qun. g tho lp g tho lp c dng trong sn xut hng lot nh v hng lot va. V chc nng th n l g chuyn dng, bi v n c lp cho mt lot cc chi tit c th ging nh g vn nng lp ghp. Khi lp lot g ny c th phi sa cha mt s chi tit v s dng mt s loi chi tit chuyn dng. u im ca loi g ny l qu trnh lp rp n gin. Nhc im ca chng l cng vng khng cao do phi s dng cc mi lp ren. g vn nng - iu chnh g vn nng iu chnh c dng trong sn xut hng lot va khi vic s dng g chuyn dng v g vn nng khng em li hiu qu kinh t. g vn nng iu chnh gm cc chi tit c lp vi nhau c th iu chnh thay i. khi thay i chi tit diu chnh th thn g v c cu truyn ng c gi nguyn (cc chi tit ny l cc chi tit khng tho lp). Vic kp cht ca g vn nng iu chnh c th thc hin bng tay hoc c kh. C cu kp c kh c th lp ngay trn g hoc lp ring bit. g chuyn dng g chuyn dng c s dng cho mt nguyn cng nht nh, v vy n ch c thit k cho mt chi tit nht nh. Cc g loi ny cho php t g nhanh v chnh xc g t cao. gim gi thnh ca g ngi ta thng dng nhng chi tit tiu chun. Thi gian s dng g chuyn dng l 3 5 nm. Sau thi gian g khng m bo chnh xc cn thit, cho nn ngi ta phi thay i g mi. g kim tra g kim tra c dng kim tra phi ( hoc chi tit) cc nguyn cng ca quy trnh cng ngh, ng thi n cn c dng kim tra cc b phm lp rp ca sn phm. g lp rp g lp rp c dng thc hin cc mi lp ghp cc chi tit li vi nhau to thnh cc cm lp rp hoc sn phm. Ngi ta thng dng cc loi g lp rp nh sau: kp cht cc chi tit c s ca n v lp rp; g t chnh xc cc chi tit lp rp; to bin dng ca cc chi tit lp rp v nn, p khi lp rp c nhu cu.Ngoi ra, g c th phn loi theo kh nng iu chnh, kh nng s dng hoc mc trang b co s dng.* Theo kh nng s dng+ g dng chung ( g vn nng ): l kiu g c th dng gia cng cc chi tit c hnh dng, kch thc v vt liu tng i khc nhau m khng phi hiu chnh hoc thay i g n kt cu ca g.+ g chuyn dng: l kiu g ch dng thc hin cng vic gia cng mt chi tit c hnh dng, kch thc v vt liu c nh duy nht. Khi thay i i tng sn xut loi ny khng dng c. g chuyn dng c u im l vi mt ln iu chnh my c th gia cng tt c cc chi tit trong l sn phm t chnh xc cho. Do c th nng cao nng xut lao ng, gim thi gian ph v sc lao ng ca cng nhn. u im ny cng th hin r trong sn xut hng lot ln v hang khi.Tuy nhin, trong sn xut n chic v hng lot nh, s dng g chuyn dung s khng kinh t v chi phi cho thit k ch to g lm cho gi thnh sn phm cao, khng rt ngn c thi gian chun b sn xut.+ g t hp g t hp l g c t hp li t nhng chi tit v b phn tiu chun ha c ch to sn v c dng li nhiu ln g t nhiu loi chi tit khc nhau. g ny c dng trong sn xut n chic, hng lot nh, hng lot ln v hng khi. So vi cc g vn nng v g chuyn dng, s dng g t hp c hiu qu kinh t rt cao bi v chi ph v thit k v ch to g loi ny cho sn phm c th tng i thp, rt ngn c thi gian chun b sn xut khi chuyn sang sn xut loi sn phm mi.

* Theo kh nng iu chnh+ g c nh l g c hnh dng v kch thc khng thay i c, n ch dng cho mt chi tit c hnh dng, kch thc v vt liu nht nh. + g iu chnh c l g c th thay i hnh dng v kch thc sau cho ph hp vi nhiu vt liu v hnh dng, kch thc gia cng khc nhau.* Theo mc trang b cho thit b chnh+ g ci thin nng sut, cht lng l dng c ph nhm nng cao nng sut v cht lng chi tit gia cng, n khng lm tay i g v tnh nng k thut ca thit b+ g ci to, bin i tnh nng ca thit b l g c trang b thm nhm ci to phn no hoc bin i tnh nng ca thit b v d nh g xn mp nguyn liu trn my may. Thng thng kiu g ny sau mt thi gian nu tn sut ng dng cao ln th n s c ghp vo thit b chnh cho ra mt loi thit b chuyn dng.II. C G1. nh ngha: C g thng c s dng rng ri trong thit b may cng nghip. N gp phn tng nng sut v cht lng cho sn phm may, gim nh thao tc cho cng nhn . C g l cng c cn thit trong dy chuyn may khi cn cc sn phm c ng u vi chnh xc cao, cht lng m bo .Vic s dng c g to mc chuyn mn ho cao Ngy nay vi s a dng ca sn phm, s pht trin ca cc loi vt liu mi, cng cc loi thit b may cng nghip l cc loi c g rt a dng v chng loi , kch thc, hnh dng.Mt s c g trong thit b may cng nghip c tiu chun ho2.Cng dng- Rt ngn thi gian may- May chnh xc hn.- Tit kim lao ng.- Gim bt cng on.3. Phn loia.Theo mc trang b cho thit b chnh- C g ci thin nng sut, cht lng: l dng c ph nhm nng cao nng sut v cht lng chi tit gia cng, n khng lm thay i g v tnh nng k thut ca thit b.Vd: c chn dn hng...- C g ci to, bin i tnh nng ca thit b l c g c trang b thm nhm ci to phn no hoc bin i tnh nng ca thit b v d nh c g to dn, hoc xp ly trn my may. Thng thng kiu c g ny sau mt thi gian nu tn sut ng dng cao ln th n s c ghp vo thit b chnh cho ra mt loi thit b chuyn dng.b. Phn loi theo ng maySttLoi cng mayp dng

1May gp mpng may c bn ,o s mi, th thao, lt,vv..

2May cun mpo jacket, bo h lao ng, cc dng khc.

3May bc mp

n , tr em ,hng dt kim,qun o thng, vest, jeans ,cc dng khc.

4May bc vin, mp bc dt kim, qun o th thao, tm,hng tr em,

5Gp hai mpHng tr em, lt,th thao, tm,ng phc

6Cun np

o s mi cc loi,o dt kim, jacket.

7Vin dyQun o ma, che y t, bc thm, qun o ph n, tr em, o th thao, pijama, tri ging, bn, cc dng khc

8May dy

Cc may hng n, quai, dy chun, dy tht lng, qun tr em v n.

9Cp may lngjeans, jacket, denim, cp qun tr em ngi ln cc loi .

10May ni 2 ng

jeans, jacket, hng ng phc, bo h lao ng, o khoc, vy, bt, ga tri ging,..

11Vin bng chn pHng n, tr em, lt, trang tr, cc dng khc,

12Vin ni,bc mp

lt

13Chia khong cchTha khuy, nh nt qun o, cc loi sn phm c tha khuy, nh nt ,

14CtCt tng phn may thnh sn phm.

15Xp lio, vy tr em, vy ng, vy d hi, cc loi hng thi trang.

16Hng vt liu dyTi, vali th thao, ti gn, giy.

17C dn hngDng cho cc cch may thng thng.

Ti liu tham khoGS. TS. Trn Vn ch, g, NXB Khoa hc v K thut, 2006http://www.anysew.vn/default.aspx?CateID=43http://tanhopphat.vn/shop/category/2016/0/0/cu%CC%83-ga%CC%81-ca%CC%81c-loa%CC%A3i.aspx