NGHIEN CUfU-TRAOD6| LlfONG TRINH PHI LE TIJ DONG CA TRA /GIAI PHAP OIEU KHIEN CHE DO CAT THEO CHAT VA NANG SUAT QUA TAI D N G BANG SCNG CCFU LONG SOLUTION TO CONTROL CUTTING CONDITION BASED ON QUALITY AND PRODUCTIVITY OF TRA FISH FILLET PROCESS IN MEKONG DELTA Tran Doan Stfn', Nguyen Tusin Hiing^ 'Trfldng Dai hpc Bach Khoa, Dai hpc Qudc gia TP Hd Chi Minh ^Trfldng Dai hpc Cdng nghiep TP Ho Chi Minh, Bd Cdng IhflPng T M TAT Trong nghien ciXu ndy, moi quan he gitia che cat vd thdng sd hinh hoc dung cu cdt vdi chdt lUdng vd ndng sudt phi le cd Tra tai Ddng bdng sdng Ctiu Long (DBSCL) qud trinh cat thtic, dUdc xdy dUng bdngphUdng phdp quy hoach thUc nghiem Tti cdc mdi quan he ndy, gidi phdp dieu khiin che cat dUdc xdy dting nhdm ddp ting cdc muc tieu chdt Itidng vd ndng sudt qud trinh phi le tudgngcd Tra Tfl khda: Phi le cd Tra, che cdt thtic, thong sd hinh hgc dung cu phi le, chdt lUdng vd ndng sudt phi le cd Tra, ntit thit cd In this research, the relation of cutting condition and cutting tool geometrical parameters on qualitiess and productivity of Tra fish fillet in real cutting process in Mekong Delta are built by design ofexperimet\t method Thank to these relations, solution to control cutting condition automatically is built to meet the quality and productivity targets of automatic Tra fish filleting process Keywords: Tra fish fillet, real cutting conditions, geometrical parameters of fillet cutting tod qualities and productivity of Tra fish fillet, fish fillet gapping TAP CHI CO KHi VIET NAM, Sd 12 nam 2013 NGHIEN CUfU-TRAO0(!)t l.GlOlTHlfiU Co hda vd tfl ddng hda qua trinh phi le ca Tra Id van de quan tam cap thiet cua nganh Che bien thuy san Viet Nam ndi chung vd tai Ddng bang sdng Cflu Long (DBSCL) ndi rieng Vdi thiet hi phi le tfl ddng [1, 2, 3] dflpc che tao cung vdi dung cu cdt va c h i dp cat dflpc hpp ly hda [4] da giai quylt dflpc bai toan phi le tfl ddng ca Tra giai doan cat ban dau Trong qua trinh cat thflc, mdn dao xay anh hfldng den chat Iflpng va nang suat phi le, vi vay, viec xay dflng giai phap dieu khien tfl dpng che dp cat theo muc tieu chat Iflpng va nang suat la van de cap thiet can dflpc nghien cflu nham hodn thien giai phap phi le tfl ddng cho ca Tra Day cflng chinh la npi dung cua bai viet Bdi bao gidi thieu phflong phap xac dinh moi quan he gifla che dd cat vd thdng sd hinh hpc dung cu cat theo muc tieu chat Iflpng va ndng suat phi le qua trinh cat thflc (cd xet den mdn dao) Cac mdi quan he la ca sd cho giai phap dieu khien tfl dpng che dd cat qua trinh phi le ca Tra tai DBSCL DOI Tl/ONG NGHlfiN CUtJ VA THIET BI — Xy lanh nm K ,' Iliads Hinh 1: Thiet biphi le tU ddng thi nghiim Dung cu cdt sfl dung thi nghiem phi le cd cac thdng sd che tao dflpc xac dinh theo bang Hinh 2: Dungcu cdt cho thii't bi phi ti tti ddng CAC YEU TO VA MUC TIEU KHAO SAT Cac yeu to ve dung cu cat va che dp cdt anh hfldng den chat Iflpng va nang suat phi le dflpc md ta cu the d bang Bdng 1: Yeu td ve dung cu cdt vd che dd cdt qud trinh cdt thtic Dfclnnig c a t ) nito STT D|c dinn} n (o Codpih Vat lieu che 'ao 2.1 Doi tflpng nghien cflu Ddi tflpng nghien cflu la ca Tra thflpng pham, thudc lodi Pangasius Hypophthalmus nudi be ven sdng Hau, qu^n Thdt Not, Tp Can Tho, DBSCL tfl d i n 12 thang, cd trpng Iflpng tfl 0.8 den 1.2 kg (trpng Iflpng khdo sat) [5] 2.2 Thiet bi nghien cflu Thiet bi nghien cflu la may phi II tfl ddng thi nghiem dflpc che tao tren co sd md hinh phi le tfl ddng ca Tra [1, 2, 3] 140 {DIN Hii.r, "v., Hull d,.iia Lm hpc Gli irt biD diD Tii.'p Yeu 16 Djng linii cit ve dyng Bien d^ng luin dii cvcSl Ooc sic a (dp) Codinh Unti tioD Co dinh Hai canh vat doi ximg Xac dinh 80 = 10 do- Thay doL doc lap Du=200 Ehicrng kmb (tao D (mm) Co dmh Be day dung cy clI B (mm) to So vong quay ciia dao c^i n Thay doi dijcl^p (\-OD^hut) dOcJl Ui^ng lien phoi S (vmis) Thay doi dpc lap Yni Trong cdc ylu td ndy, dfldng kinh dao, sd vdng quay ciia dao cat, Iflpng tiln phdi vao dao Id cac ylu td thay ddi dflpc chpn khao sat theo cac muc tieu nghien cflu cua bdi bao Cdc yen td ndy ddc lap tuyen tinh va lan Iflpt dflpc dat ten Idx,, x„ x, TAP CHi CO KHi V I £ T NAM, Sd 12 nam 2013 NGHIEN CUfU-TRAO D | Muc tieu khao sat cua nghien cflu ndy la chat Iflpng san pham phi le vd nang suat phi le, dflpc md ta d bang 2, Bdng 2: Cdc muc tiiu khdo sdt STT Alqc tlk kbao sit ThoDg so dioh gia Himinifctia Chat tuiTng san pham Diem niii ihii yi=fi'^vh'^}) Nangsultphilg Thdi gian phi le m^i don vj doi tilling khao sat t (giay) Y:=f{x„x:,x,) quan Thdt Not, TP CSn Thfl, DBSCL (khoang 30 be), mat dp ca be tiT 80 - 120 con/m^ Vung chpn mau co dien tich m^ tai tam be (cd khoang 80 d i n 120 con) Mdu dflpc lay ngau nhien tai vi tri gdc vd tdm cua vung chpn mau Ca sau chpn dflpc cat mang, trich mau, cat dau va moi noi tang trfldc tien hanh phi le PHl/ONG PHAP D A N H G I A 4.1 Do nijft thit va d i l m nflt thit [6] Nflt thit Id hien tflpng co thit hi tach tao vet nflt trln milng phi 11 Vet nflt nhd neu chieu ddi vet nflt ngan hpn 2cm Vet nflt Idn neu chieu ddi vet nflt bang hay dai hdn 2cm Chieu ddi vet nflt dflpc xac dinh bang thfldc cap Mitutoyo 550-311-10, vung tfl den 200mm, dp chinh xac 0.01 mm Dp nflt thit la so vet nflt dim dflpc vung dien tich khao sat inch^ tren mieng phi le Dp nflt thit dflpc danh gia bang diem, diem ndy, gpi la diem dp nflt thit Thang diem danh gia dp nflt thit tfl den (bang 3) Viec xac dinh diem dp nflt thit dflpc thflc hien vdng phflt sau phi le d milng phi 11 ben phai THIET KE VA TIEN H A N H THI NGHI£M Chpn phflpng phap thiet kl nhdn td todn phan mflc de bo tri cac thi nghiem Vdi yeu td tac dong (k=3), sd thi nghiem can 1dm la N = 2'' = 8, sd thi nghiem d tam dfl^c chpn la Dung dao thi nghiim cat vao gd de dat dflpc dp mdn hfldng kinh ngdu nhiln vd 1dm giam dfldng kinh dao cat theo cac gia tri dflpc bo tri thiet ke thi nghiem Bdng 3: Thang diem ddnh gid ntit thit Diem So vet niit Khong nut thjt So vet nut nho nho hon Sd vet nut nhd nho hem 10 So vet nut nho Idn hon 10 va vai vet ntit Idn {< 5) Nhieu vet nflt Idn (=•5) Thit bi tach 4.2 Thdi gian phi le [61 Tien hdnh phi le vdi dijng cii cd cac dfldng kinh vd cdc che c5t khdc Ghi lai thdi gian phi le t tflng ddi tflpng va diem dp niit tiijl tren tflng milng phi le KET QUA THlTC NGHIEM Tien hanh cac thi nghiem tim Dflpc xac dinh tfl diing cii cat bat dau phi le ca d i n dao thoat hodn todn khdi vung phi le Thdi gian phi le dflpc xac dinh bang ddng hd dien tfl bam giay Casio HS-3V mien gidi ban cua dfldng kinh dao, sd vdng quay cua dao cat vd Ifltfi^ tien phdi [7], cac thi nghiim cho ta ket qua nhfl sau: CHUAN BI M A U [6] 197.8 < Z ) < 200; 172 < n Ngay nhan bai: 01/11/2013 Ngay phan bien: 15/12/2013 Ngiidi phan bien: PGS.TS Dao Quang Ke, Khoa Co - Dien, TruOng Dai hoc Nong nghiep Ha Noi T^i lieu tham khao: [1] Tran Doan Sdn, Nguyen Tuan Hiing,"Nghien cdu mo hinh phi le tu ddng cd Tra tai Dong bang song Cdu Lonf Hoi thao khoa hpc ve thiet bi lang phi le ca, Co quan Hpp tac Quoc te Nhat Ban (Jica), TruOng Dai hpc Bach khoa TP Hp Chi Minh, 2008 [2] Nguyen Tuan Hiing, Tran Dpan Son, "Nghien cdu, thiet ke, che tao vd khdo nghiim thiet bi lang cd Basa", Tap chi Phat trien Khoa hpc va Cong nghe, Dai hpc Qupc gia TP, Ho Chi Minh, tap 12, so 05, trang 5-13,2009 [3] Nguyen Tu^n Hiing, Tran Doan Son, "Nghien cdu, thiet ke, che tao vd khdo nghiem thiet biphi le cd Tra", Hpi thip khoa hpc ve thiet bi lang phi le ca, Co quan Hop tac Quoc te Nhat Ban (Jica), TrUdng Dai hpc Bach khoa TP, Ho Chi Minh, 2008, [4], Tran Doan Son, Nguyen Tuan Hiing, "AM/I hudng che cdt vd thong so hinh hoc dung cu cdt den chdtlUOng vd ndng sudt phi le cd Tra tai Dong bdng song Ci^u Long giai doan cdt han ddu" Tap chi Co Viet Nam, Tong hpi Co Viet Nam, so 10, trang 83-87, 2013 [5] Pham Wn Khanh, "Ky thuat nudi cd tra vd ba sa be" NXB Nong nghiep, TP Ho Chi Minh, 2009 [6], Nguyin Tuan Hung, Tran Doan Son, "Anh hudng cdc giai doan chuyen hod sau chet den chdt luong vd ndng sudt phi le cua cd Tra/Basa" Tap chi Phat trien Khoa hpc va Cong nghe, Dai hpc Qucc gia TR Ho Chi Minh, tap 12, SP 06, trang 5-14, 2009, [7], Nguyen TuSn Hung, "Nghien citu dnh hudng cua che cdt vd thong so hinh hoc cua dung cu cdt den chdt lupng vd hieu qud qud trinh lang phi U cd Tra/Basa", Chuyen de Luan an Tien si Ky thuat, TrUdng Dai hpc Bach khpa, Dai hpc Qu6c gia TP, Ho Chi Minh, 2008 TAP CHl CO KHl VIET NAM, So 12 niim 2013 IHl ...NGHIEN CUfU-TRAO0(!)t l.GlOlTHlfiU Co hda vd tfl ddng hda qua trinh phi le ca Tra Id van de quan tam cap thiet cua nganh Che bien thuy san Viet Nam ndi chung vd tai Ddng bang sdng Cflu Long (DBSCL)... ca Tra Day cflng chinh la npi dung cua bai viet Bdi bao gidi thieu phflong phap xac dinh moi quan he gifla che dd cat vd thdng sd hinh hpc dung cu cat theo muc tieu chat Iflpng va ndng suat phi. .. dd cat qua trinh phi le ca Tra tai DBSCL DOI Tl/ONG NGHlfiN CUtJ VA THIET BI — Xy lanh nm K ,'' Iliads Hinh 1: Thiet biphi le tU ddng thi nghiim Dung cu cdt sfl dung thi nghiem phi le cd cac thdng