• Title, Summary, Keyword: Cutting and Peeling

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Development of the Altari Radish Pre-processing System for Kimchi Production(II) - Optimum Cutter Shape for Plane Peeling - (김치생산용 알타리무 전처리가공시스템 개발(II) - 평면형 삭피칼날의 최적형상 -)

  • Min Y. B.;Kim S. T.;Kang D. H.
    • Journal of Biosystems Engineering
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    • v.30 no.3
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    • pp.161-165
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    • 2005
  • In this study, peeling test of the Altari radish on kimchi pre-processing system for mechanization was performed with the longitudinal plane peeling type with wider cutting blade than that of the peeled chip's. To determine the optimum cutter shape to match this plane peeling type, the peeling tests depending on variable cutting speed, rake angle and blade angle using the blade with thickness as 2 m and width as 50mm were performed, and the patterns of the peeled chips and peeling resistances were investigated. As the result of the tests, the rake angle of the blade with clean peeled surface of the Altari radish was over $45^{\circ}$, and the blade angle and rake angle with the minimum peeling resistance was $20^{\circ}\;and\;60^{\circ}$, respectively. The optimum peeling conditions were; the peeling speed 0.2m/s, blade angle $20^{\circ}$ and the rake angle $60^{\circ}$, and the peeling resistance of each blade was 15 N.

Development of Chestnut Peeling System (밤 박피 시스템 개발)

  • 김종훈;박재복;최창현
    • Journal of Biosystems Engineering
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    • v.22 no.3
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    • pp.289-294
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    • 1997
  • The chestnut is a well-known and important forest product in Korea. The annual production of chestnut is about 100, 000tons and its cultivating area is 80, 000ha. However, the peeling process of outer and inner skins of chestnut is very difficult due to hardness and adhesiveness of chestnut skin. The peeling process of chestnut was operated by manual work and the performance of chestnut peeling machine is very low. The purpose of this study is to develope the prototype of new chestnut peeling system. The hardness of chestnuts was tested with six different drying conditions and its range was from 949$g/mm^2$ to 2, 149$g/mm^2$. The hardness of chestnuts was decresed gradually during the drying process. The chestnut peeling Process includes sorting, storage, drying, outer skin cutting, flame peeling, continuous frictional skin peeling, and inner skin cutting operation. The developed chestnut peeling system consists of outer skin cutter, flame peeler, continuous frictional skin peeler and inner skin cutter. The system can peel domestic chestnuts at 150$kg/hr$ with peeling rate of 78%.

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Determination of Optimum Cutter Shape for Peeling Altari Radish (알타리무 삭피용 최적 칼날형상의 구명)

  • 민영봉;김성태;강동현;정태상
    • Journal of Biosystems Engineering
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    • v.28 no.5
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    • pp.421-428
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    • 2003
  • This study was conducted to determine the optimum blade shape for peeling Altari radish. To figure out the required peeling force according to various angles of blade and rakes of peeling cutter, two peeling tests such as circumferential peeling and longitudinal peeling of Altari radish were carried out. Based on the pretest results, which performed to investigate the applicability of the optimum shape of cutter and to find out the cutting pattern according to the lapse of days after harvesting the radish, the peeling depth and width of the blade were fixed at 2 mm and 10 mm. From two methods of circumferential and longitudinal peeling test, the angles of rake and blade as cutter shape factors were affected on peeling force. But the peeling speed was not affected on it under the safety speed as 0.2 m/s, without blade vibrating on peeling operation. The rake angle was more effective factor than the blade angle, and the optimum angles of blade and rake were 10$^{\circ}$ and 55$^{\circ}$ respectively. The cutting surface by the longitudinal peeling was more smooth than that by the circumferential peeling. There was no problem in peeling work during 4 days after harvest because the freshness of the Altari radish was maintained.

Study on Analysis of Heat Conduction of SUS Materials for Peeling Machine (필링머신용 SUS 소재의 열전도 해석 연구)

  • Her, Yun-Young;Yang, Young-Joon
    • Journal of the Korean Society of Mechanical Technology
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    • v.19 no.3
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    • pp.313-319
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    • 2017
  • SUS bars such as 304, 316 series have been widely used to manufacture the adapters and fittings, which include many hexagonal bolts and nuts. The purpose of this study is to investigate the characteristics of heat conduction of SUS bar according to rotation of cutting tool. Temperature distribution in SUS bar can be achieved by using numerical analysis of heat conduction, thus it may be of help to the optimal operation of peeling machine. As the results, as the rotation of cutting tool is increased, both maximum cutting temperature and depth of heat conduction are decreased. Moreover as the angle of SUS bar is increased, it shows that maximum cutting temperature is decreased, on the other hand, depth of heat conduction is increased.

Peeling Operations of Root Vegetables: Potato, Sweet Potato and Carrot (근채류(감자, 고구마, 당근)의 탈피조작)

  • Lee, Cherl-Ho;Lee, Soon-Woo
    • Korean Journal of Food Science and Technology
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    • v.16 no.3
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    • pp.329-335
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    • 1984
  • The effect of peeling methods, spherecity and weight of potatoes and carrots on the peeling efficiency were investigated. The changes in the surface texture by peeling were estimated by Rheometer and were related to the changes in the microstructure. The optimum mechanical peeling conditions using abrasion type rotary peeler were 90 sec. at 300 rpm for potatoes, 70 sec. at 300 rpm for sweet potatoes and 60 sec. at 300 rpm for carrots. The peeling loss was influenced by the sphericity and weight of the sample. The optimum conditions for alkali peeling were 90 sec. immersion in boiling 10% NaOH solution for potatoes, 300 sec. in boiling 10% NaOH solution for sweet potatoes and 60 sec. in boiling 6% NaOH solution for carrots. Severe damage of surface structure was noticed by alkali peeling, demonstrated by denaturation of starch granules in the cell. The structural damage observed by microscope was related to the reduction of cutting force after peeling.

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Development of the Altari Radish Pre-Processing System for Kimchi Production (IV) - Automation and Evaluation of the Prototype Machine - (김치생산용 알타리무 전처리가공시스템 개발 (IV) - 시작기의 자동화와 평가 -)

  • Min Y.B.;Kim S.T.;Chung T.S.;Kang D.H.;Moon S.W.
    • Journal of Biosystems Engineering
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    • v.31 no.2
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    • pp.121-127
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    • 2006
  • An Altari radish pre-processing system, which feasible to process automatically such operations as leaf and root tail cutting and root peeling, for kimchi production was accomplished based on the foregone serial studies. In this study, the performances of the developed prototype machine, considered as a commercializing level, were analyzed and evaluated. The prototype machine attached Tiny PLC automatic control system was performed the sequent function as the rate of successful peeling was more than 98% for the Altari radish less than 70 mm diameter of a radish. The operating efficiency of this was 9 see/each, 128 kg/h, and it means as much as $5{\sim}6$ times that of a woman labor's. The sanitation and taste of the mechanized-processed Altari radish kimchi was almost same as that of the handmade. And they were suitable for manufactory of kimchi as the both short term ripening and storing kimchi. Developed machinery with one peeling device and two peeling devices that compared with hand processing, it was analyzed that the break-even yearly working days were 28 days and 19 days, and the break-even yearly processing amount were 28,700 kg, 32,400 kg, respectively.

Effects of Peeling and Sample types on Drying Time and Paeoniflorin Contents of Peony Root (작약근의 박피와 시료형태가 건조시간 및 Paeoniflorin 함량에 미치는 영향)

  • Kim, Ki-Jae;Park, Chun-Hong;Park, So-Deuk;Kim, Jae-Cheol;Park, Kyeng-Sok
    • Korean Journal of Medicinal Crop Science
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    • v.10 no.1
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    • pp.24-28
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    • 2002
  • Effect of pretreatment processing (peeling time, drying temperature, sample type) on the quality of hot air drying peony roots was investigated. Peony roots were peeled for 0, 10, 20, 30, 60, 90 and 120 minute in the peeling machine after water washing. Sample types were whole or cut (thickness of 3mm). Temperatures of hot air drying were 30, 40, 50 and $60^{\circ}C$ The level of water contents in dried sample was $14{\sim}15%$. Drying time was muth reduced as the peeling time, cutting sample types and higher temperature. Contents of paeoniflorin were maintained highest amount (3.48%) in the non-peeling cut sample dried at $30^{\circ}C$ and lowest amount (2.29%) in the 120min-peeling whole one dried at $60^{\circ}C$. Skin color of dried peony roots was heavily discolored in the sample of non-peeling whole type dried at $60^{\circ}C$ and the color was dark brown $({\Delta}E\;was\;46.1)$. When considering shortening of drying time, preservation of active compounds and maintenance of color, the best pretreatment method of drying in peony roots was non-peeling, cut type processing.

Quality Characteristics of Potato and Sweet Potato Peeled by Different Methods (박피방법에 따른 감자 및 고구마의 초기 품질 비교)

  • Jeong Jin-Woong;Park Kee-Jai;Jeong Seong-Weon;Sung Jung-Min
    • Korean Journal of Food Preservation
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    • v.13 no.4
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    • pp.438-444
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    • 2006
  • This study was carried out to obtain fundamental data such as peeling efficiency and quality of potatoes and sweet potatoes peeled by hand, machine and alkali(NaOH). The weight loss by peeling was influenced by peeling methods. Weight losses by rotational brushing-type peeler showed the lowest value, 7.9% in potato, and 7.3% in sweet potato. Any significant differences in moisture content were not found in potatoes and sweet potatoes by peeling methods. The pH of potatoes and sweet potatoes just after peeling were 5.8-6.8 and 6.23-6.63, and decreased somewhat until 3 hrs after peeling. Hardness of potatoes and sweet potatoes peeled by hand with fruit knife were better than that of others. Depending upon the peeling method used the color and color differences undergo some changes in their color and browning. Color difference value of peeled potatoes by hand with a technical tools, and by mechanical peeler such as rotational cutting-type peeler and rotational brushing-type peeler showed just slightly. In particular, changes of rotor differences value of potatoes and sweet potatoes peeled by dipping with 10% NaOH solution at $100^{\circ}C$ was the highest in the samples peeled by NaOH.

The Development of Robot that is Detecting of Sewage Pipe and Cutting of Connection Projecting Part (하수관로 검사 및 연결 절단부 로봇의 개발)

  • Chung Jae-Kang;Kim Woo-Jin;Kim Jae-Yeol
    • Tribology and Lubricants
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    • v.22 no.4
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    • pp.225-229
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    • 2006
  • The issue with the drainpipe now a day is that they are laid underground. Causing us to perform additional work to repair, such as digging up the ground and peeling off the insulator that surrounds the pipe. And such series works are difficult that concession appears from government and municipal office. However, if we can save time and money. Performance of piping robot that we are studied in existing session through fixing unit and improvement of cutting bit shorten and wished to heighten work efficiency. And we are trying to develop a unit that can cut up the projecting parts which connects with the interior part of the drainpipes.

Fixing unit and byte improvement of unit for cutting of projecting parts connects with interior part of drainpipe (하수관로 연결돌출부 절단기 유닛 고정유닛과 바이트 개선)

  • Kim, Jae-Yeol;Yoo, Sin;An, Jae-Sin;Kwak, Yi-Gu;Song, Kyung-Seok;Lee, Chang-Sun
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • pp.1166-1169
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    • 2003
  • The issue with the drainpipe now a day is that they are laid underground Causing us to perform additional work to repair, such as digging up the ground and peeling off the insulator that surrounds the pipe. And such series works are difficult that concession appears from government and municipal office. However, if we can save time and money. Performance of piping robot that we are studied in existing session through fixing unit and improvement of cutting byte shorten and wished to heighten work efficiency. This is why we aye trying to develop a unit that can cut up the projecting parts which connects with the interior part of the drainpipes.

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