KR20070034818A - Rotary drum for washing machine and manufacturing method - Google Patents

Rotary drum for washing machine and manufacturing method Download PDF

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Publication number
KR20070034818A
KR20070034818A KR1020050089393A KR20050089393A KR20070034818A KR 20070034818 A KR20070034818 A KR 20070034818A KR 1020050089393 A KR1020050089393 A KR 1020050089393A KR 20050089393 A KR20050089393 A KR 20050089393A KR 20070034818 A KR20070034818 A KR 20070034818A
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drum
cylindrical portion
washing machine
manufacturing
ironing
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KR1020050089393A
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Korean (ko)
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KR101222859B1 (en
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김의수
김형균
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삼성전자주식회사
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F23/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry 
    • D06F23/02—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry  and rotating or oscillating about a horizontal axis
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/02—Rotary receptacles, e.g. drums
    • D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

제조공정의 단순화를 통해 생산성을 높이고 제조비용을 줄일 수 있도록 하는 드럼세탁기용 회전드럼 및 그 제조방법을 개시한다. 이 드럼세탁기용 회전드럼은 둘레의 원통부, 상기 원통부의 후단에 연결된 후면부, 상기 원통부의 전단에 연결되며 입구를 갖춘 전면부를 포함하며, 원통부와 후면부가 딥드로잉가공을 통해 일체형을 마련된 것이다.Disclosed are a drum for rotating drum washing machines and a method of manufacturing the same, which can increase productivity and reduce manufacturing costs by simplifying a manufacturing process. The drum washing machine drum includes a cylindrical portion of the circumference, a rear portion connected to the rear end of the cylindrical portion, and a front portion connected to the front end of the cylindrical portion and having an inlet, and the cylindrical portion and the rear portion are provided through a deep drawing process.

Description

드럼세탁기용 회전드럼 및 그 제조방법{ROTARY DRUM FOR DRUM WASHING MACHINE AND MANUFACTURING METHOD THEREOF}Rotating drum for drum washing machine and its manufacturing method {ROTARY DRUM FOR DRUM WASHING MACHINE AND MANUFACTURING METHOD THEREOF}

도 1은 종래 드럼세탁기용 회전드럼의 구성을 나타낸 단면도이다.1 is a cross-sectional view showing the configuration of a rotating drum for a conventional drum washing machine.

도 2는 본 발명에 따른 드럼세탁기용 회전드럼의 구성을 나타낸 사시도이다.Figure 2 is a perspective view showing the configuration of a drum for washing drums according to the present invention.

도 3은 본 발명에 따른 드럼세탁기용 회전드럼의 제조공정을 나타낸 것이다.Figure 3 shows the manufacturing process of the drum for drum washing machine according to the present invention.

도 4는 본 발명에 따른 드럼세탁기용 회전드럼 제조공정 중 블랭킹공정, 딥드로잉공정, 아이어닝공정, 시이밍공정을 개략적으로 도시한 것이다.Figure 4 schematically shows a blanking process, deep drawing process, ironing process, seaming process of the drum washing machine drum manufacturing process according to the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

10: 원통부, 11: 후면부,10: cylinder, 11: rear,

12: 전면부, 13: 입구.12: front, 13: entrance.

본 발명은 드럼세탁기용 회전드럼 및 그 제조방법에 관한 것으로, 더욱 상세하게는 제조공정 단순화를 통해 생산성을 높이고 제조비용을 줄일 수 있도록 한 드럼세탁기용 회전드럼 및 그 제조방법에 관한 것이다.The present invention relates to a drum for drum washing machine and a manufacturing method thereof, and more particularly to a drum for drum washing machine and a method for manufacturing the drum washing machine to increase the productivity and reduce the manufacturing cost by simplifying the manufacturing process.

통상적인 드럼세탁기는 세탁수가 채워지는 수조와, 수조의 내에 회전 가능하게 설 치된 회전드럼과, 회전드럼을 회전시키는 구동모터를 구비한다. 회전드럼은 회전하는 동작에 의해 그 내부의 세탁물을 상승시켰다가 낙하시킴으로써 세탁이 이루어지도록 한다.A conventional drum washing machine includes a tank filled with washing water, a rotating drum rotatably installed in the tank, and a driving motor for rotating the rotating drum. The rotating drum raises and drops the laundry therein by a rotating operation so that washing is performed.

이러한 드럼세탁기의 회전드럼은 도 1에 도시한 바와 같이, 다수의 탈수공(2)이 형성된 원통부(1)와, 원통부(1)의 후단을 폐쇄하도록 결합되며 그 중심에 축(4)이 결합되는 후면부(3)와, 원통부(1)의 전단에 결합되며 중심부에 세탁물의 입출을 위한 입구(6)가 형성된 전면부(5)를 포함한다.As shown in FIG. 1, the rotating drum of the drum washing machine is coupled with a cylindrical portion 1 having a plurality of dehydration holes 2 and a rear end of the cylindrical portion 1 to close the shaft 4. It is coupled to the rear end portion 3 and the front end of the cylindrical portion 1 and includes a front portion 5 formed with an inlet 6 for entering and exiting laundry in the center.

이러한 회전드럼은 원통부(1), 후면부(3), 전면부(5)를 각각 별도로 만든 후 이들을 상호 연결시키는 방식으로 제조한다. 즉 철판의 벤딩작업을 통해 원통부(1)를 만들고, 철판의 프레스가공을 통해 전면부(5)와 후면부(3)를 만든다. 그리고 원통부(1)의 후단과 후면부(3)의 둘레부분을 시이밍(Seaming)이나 용접을 통해 연결하고, 원통부(1)의 전단과 전면부(5)의 둘레부분을 시이밍이나 용접을 통해 연결한다.The rotating drum is made in a manner of making the cylindrical portion (1), the rear portion (3), the front portion (5) separately and then interconnect them. That is, the cylindrical part (1) is made by bending the iron plate, and the front part (5) and the rear part (3) are made by pressing the iron plate. Then, the rear end of the cylindrical portion 1 and the circumferential portion of the rear portion 3 are connected by seaming or welding, and the front end of the cylindrical portion 1 and the circumferential portion of the front portion 5 are seamed or welded. Connect via

그러나 이러한 종래 드럼세탁기의 회전드럼은 원통부(1), 후면부(3), 전면부(5)를 각각 별도의 공정을 통해 만든 후 각 부품을 상호 연결시키는 방식으로 제조하기 때문에 부품수가 많고 제조공정이 복잡하였다. 따라서 생산성이 낮고 제조비용이 높은 결점이 있었다.However, the rotating drum of the conventional drum washing machine has a large number of parts and a manufacturing process because the cylindrical part 1, the rear part 3, and the front part 5 are manufactured through a separate process and then interconnected with each other. This was complicated. Therefore, there was a drawback of low productivity and high manufacturing cost.

본 발명은 이와 같은 문제점을 해결하기 위한 것으로, 본 발명의 목적은 제조공정의 단순화를 통해 생산성을 높이고 제조비용을 줄일 수 있도록 하는 드럼세 탁기용 회전드럼 및 그 제조방법을 제공하는 것이다.The present invention is to solve such a problem, it is an object of the present invention to provide a drum washing drum and a method of manufacturing the same to increase the productivity and reduce the manufacturing cost through the simplification of the manufacturing process.

이러한 목적을 달성하기 위한 본 발명에 따른 드럼세탁기용 회전드럼은 둘레의 원통부, 상기 원통부의 후단에 연결된 후면부, 상기 원통부의 전단에 연결되며 입구를 갖춘 전면부를 포함하며, 상기 원통부와 상기 후면부가 딥드로잉가공을 통해 일체형을 마련된 것을 특징으로 한다.Drum rotating washing machine according to the present invention for achieving this object includes a cylindrical portion of the circumference, the rear portion connected to the rear end of the cylindrical portion, the front portion is connected to the front end of the cylindrical portion and having an inlet, the cylindrical portion and the rear portion It is characterized in that the integral through the deep drawing processing.

또한 상기 원통부의 선단과 상기 전면부가 시이밍을 통해 연결된 것을 특징으로 한다.In addition, the front end and the front portion of the cylindrical portion is characterized in that connected via seaming.

또한 상기 원통부와 상기 후면부가 오스테나이트계 스테인리스 강판으로 성형된 것을 특징으로 한다.In addition, the cylindrical portion and the rear portion is characterized in that the molded austenitic stainless steel sheet.

또한 본 발명에 따른 드럼세탁기용 회전드럼 제조방법은 둘레의 원통부, 상기 원통부 후단에 연결된 후면부, 상기 원통부 전단에 연결되며 입구를 갖춘 전면부를 포함하는 것에 있어서, 딥드로잉과 아이어닝을 거쳐 상기 원통부와 후면부를 일체로 성형하고, 드로잉을 거쳐 상기 전면부를 별도로 성형하며, 시이밍을 통해 상기 전면부와 상기 원통부 선단을 연결하는 공정을 포함하는 것을 특징으로 한다.In addition, the drum manufacturing method of the drum washing machine according to the present invention includes a front portion connected to the front end having a cylindrical portion, a rear portion connected to the rear end of the cylindrical portion, the front end of the cylindrical portion, through deep drawing and ironing And forming the cylindrical portion and the rear portion integrally, forming the front portion separately through a drawing, and connecting the front portion and the cylindrical tip through seaming.

또한 상기 원통부와 후면부를 제조하는 공정은 상기 딥드로잉 전에 브랭킹을 통해 원판을 절단하고, 상기 아이어닝 후에 불필요한 부분을 트리밍하며, 탈수공 형성을 위해 상기 원통부에 피어싱을 하고, 상기 시이밍을 위해 상기 원통부 전단을 벤딩하는 공정을 포함하는 것을 특징으로 한다.In addition, the process of manufacturing the cylindrical portion and the rear portion is to cut the disc through the blanking before the deep drawing, trim unnecessary parts after the ironing, piercing the cylindrical portion to form a dehydration hole, the seaming It characterized in that it comprises a step of bending the cylindrical shear for.

또한 상기 아이어닝 공정은 1차 아이어닝과 2차 아이어닝을 포함하고, 상기 딥드로잉과 상기 1차 및 2차 아이어닝은 순차적으로 연속하여 수행하는 것을 특징으로 한다.The ironing process may include primary ironing and secondary ironing, and the deep drawing and the primary and secondary ironing may be sequentially performed in sequence.

또한 상기 전면부를 제조하는 공정은 상기 드로잉 전에 블랭킹을 통해 원판을 절단하고, 상기 드로잉 후에 불필요한 부분을 트리밍하며, 상기 시이밍을 위해 상기 전면부 둘레를 벤딩하고, 탈수공 형성을 위해 상기 전면부 둘레 쪽에 피어싱을 하며, 상기 전면부의 입구를 커링하는 공정을 포함하는 것을 특징으로 한다.The process of manufacturing the front part also cuts the disc through blanking before the drawing, trims unnecessary parts after the drawing, bends around the front part for seaming, and circumscribes the front part to form a dehydration hole. Piercing on the side, characterized in that it comprises a step of curing the inlet of the front portion.

이하에서는 본 발명에 따른 바람직한 실시 예를 첨부 도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

본 발명에 따른 드럼세탁기용 회전드럼은 도 2에 도시한 바와 같이, 둘레의 원통부(10), 원통부(10)의 후단에 연결된 후면부(11), 원통부(10)의 전단에 연결되며 세탁물의 입출을 위한 입구(13)가 형성된 전면부(12)를 포함한다. 원통부(10)에는 다수의 탈수공(10a)이 형성되고, 전면부(12)와 후면부(11)의 둘레부분에도 탈수공들(11a,12a)이 형성된다. 후면부(11)의 중심부에는 세탁기의 회전축(14)이 연결된다.Rotating drum for drum washing machine according to the invention is connected to the front end of the cylindrical portion 10, the rear end portion 11 connected to the rear end of the cylindrical portion 10, the cylindrical portion 10, as shown in FIG. It includes a front portion 12 formed with an inlet 13 for entering and exiting laundry. A plurality of dehydration holes (10a) is formed in the cylindrical portion 10, the dehydration holes (11a, 12a) are also formed in the peripheral portion of the front portion 12 and the rear portion (11). The rotating shaft 14 of the washing machine is connected to the center of the rear portion 11.

또 본 발명에 따른 회전드럼은 원통부(10)와 후면부(11)과 일체형으로 성형되고, 전면부(12)가 별도로 성형된 후, 원통부(10)의 전단에 전면부(12)의 둘레부분을 연결시키는 방식으로 제조한다. 이는 원통부(10)와 후면부(11)를 일체형으로 제조함으로써 종래에 비하여 부품수를 줄이고 제조공정을 단순화할 수 있도록 한 것이다.In addition, the rotating drum according to the present invention is formed integrally with the cylindrical portion 10 and the rear portion 11, after the front portion 12 is molded separately, the circumference of the front portion 12 to the front end of the cylindrical portion 10 It is made by connecting parts. This is to manufacture the cylindrical portion 10 and the rear portion 11 in one piece so as to reduce the number of parts and simplify the manufacturing process as compared to the conventional.

이러한 회전드럼의 제조를 위한 구체적인 공정은 도 3에 도시한 바와 같다. 먼저 원통부(10)와 후면부(11)가 일체형인 부품을 제조할 때는 블랭킹(Blanking)공정(21), 딥드로잉(Deep Drawing)공정(22), 1차 및 2차 아이어닝(Ironing)공정(23,24), 트리밍(Trimming)공정(25), 피어싱(Piercing)공정(26), 벤딩(Bending)공정(27)을 차례로 거친다.Specific process for the production of such a rotating drum is shown in FIG. First, when manufacturing the parts in which the cylindrical portion 10 and the rear portion 11 are integral, a blanking process 21, a deep drawing process 22, a primary and secondary ironing process (23, 24), a trimming process 25, a piercing process 26, and a bending process 27 are performed in this order.

블랭킹공정(21)은 도 4의 (a)에 도시한 바와 같이, 추후 딥드로잉공정(22)을 수행할 수 있도록 블랭킹다이(41)와 펀치(42)를 이용하여 원판(A)을 원하는 직경으로 절단한다. 원판(A)의 재질은 회전드럼의 원통부(10)와 후면부(10)를 딥드로잉 가공을 통해 일체로 성형하기 용이하고 내식성이 좋은 오스테나이트계 또는 페라이트계 스테인리스 강판으로 한다.As shown in FIG. 4A, the blanking process 21 uses the blanking die 41 and the punch 42 to make the disc A desired diameter so that the deep drawing process 22 can be performed later. Cut with The material of the disk (A) is an austenitic or ferritic stainless steel sheet which is easy to be molded integrally through deep drawing processing of the cylindrical portion 10 and the rear portion 10 of the rotating drum and has good corrosion resistance.

블랭킹공정(21) 후에는 도 4의 (b)에 도시한 바와 같이, 딥드로잉 다이(44)와 가압플런저(43)를 이용한 딥드로잉공정(22)을 통해 절단된 소재를 드럼의 형태로 1차 성형물(51)을 만든다. 딥드로잉공정(22) 후에는 딥드로잉다이(44)보다 내경이 작은 1차 아니어닝다이(45)를 이용하는 1차 아이어닝공정(23)을 통해 1차 성형물(51)을 두께를 감소시키는 방식으로 2차 성형물(52)을 만든다. 또 1차 아이어닝공정(23) 후에는 1차 아이어닝다이(45)보다 내경이 더 작은 2차 아이어닝다이(46)를 이용하는 2차 아이어닝공정(24)을 통해 2차 성형물(52)의 두께를 더 감소시키는 방식으로 3차 성형물(53)을 만든다. 이렇게 하면 회전드럼의 원통부(10)와 후면부(11)가 일체형인 형태의 성형물을 얻을 수 있다. After the blanking step 21, as shown in FIG. 4 (b), the material cut through the deep drawing step 22 using the deep drawing die 44 and the pressure plunger 43 is in the form of a drum. The primary molding 51 is made. After the deep drawing process 22, the thickness of the primary molding 51 is reduced through the first ironing process 23 using the primary annealing die 45 having a smaller inner diameter than the deep drawing die 44. To form a secondary molding (52). In addition, after the first ironing process 23, the secondary molding 52 is subjected to the second ironing process 24 using the second ironing die 46 having an inner diameter smaller than that of the first ironing die 45. The tertiary molding 53 is made in such a way as to further reduce the thickness thereof. In this way, a molded article in which the cylindrical portion 10 and the rear portion 11 of the rotating drum are integrated can be obtained.

딥드로잉공정(22)과 1차 및 2차 아이어닝공정(23,24)은 마치 한 번의 성형공정을 수행하는 것처럼 순차적으로 연속하여 수행한다. 즉 도 4의 (b)에 도시한 바 와 같이, 딥드로잉다이(44), 1차 및 2차 아이어닝다이(45,46)를 상호 소정간격 이격된 위치에 직렬로 배치하고, 동일한 가압플런저(43)가 이들을 연속하여 통과하도록 함으로써 딥드로잉공정(22)과 1차 및 2차 아이어닝공정(23,24)이 일련의 공정으로 이루어질 수 있도록 한다.The deep drawing process 22 and the primary and secondary ironing processes 23 and 24 are performed sequentially in sequence as if performing a single molding process. That is, as shown in (b) of FIG. 4, the deep drawing die 44, the primary and secondary ironing dies 45 and 46 are arranged in series at positions spaced apart from each other by the same pressure plunger. By allowing 43 to pass them continuously, the deep drawing process 22 and the primary and secondary ironing processes 23 and 24 can be made in a series of processes.

딥드로잉공정(22)과 1차 및 2차 아이어닝공정(23,24) 후에는 도 3에 도시한 바와 같이, 트리밍공정(25)을 통해 원통부(10)의 불필요한 부분을 절단하고, 피어싱공정(26)을 통해 원통부(10)와 후면부(11)에 탈수공들(10a,11a)을 형성시킨다. 그리고 벤딩공정(27)을 통해 추후 전면부(12)와 결합하는 시이밍공정(38)을 수행할 수 있도록 원통부(10)의 전단을 절곡한다. 이렇게 하면 원통부(10)와 후면부(11)가 일체형으로 된 하나의 부품이 완성된다.After the deep drawing process 22 and the primary and secondary ironing processes 23 and 24, as shown in FIG. 3, the unnecessary portion of the cylindrical portion 10 is cut and pierced through the trimming process 25. Through the process 26, the dehydration holes 10a and 11a are formed in the cylindrical part 10 and the rear part 11, respectively. And the front end of the cylindrical portion 10 is bent to perform the seaming process 38 to be coupled to the front portion 12 later through the bending process (27). This completes one part in which the cylindrical portion 10 and the rear portion 11 are integrated.

전면부(12)를 제조하는 공정은 도 3에 도시한 바와 같이, 별도의 공정이므로 별도의 제조라인에서 수행한다. 전면부(12)를 제조할 때는 원판을 원형으로 절단하는 블랭킹공정(31), 전면부(12)에 굴곡면 등을 성형시키는 통상의 드로잉공정(32), 전면부(12) 둘레의 불필요한 부분을 절단하는 트리밍공정(33), 추후 원통부(10) 전단과 결합하는 시이밍공정(38)을 수행할 수 있도록 전면부(12) 둘레를 절곡시키는 벤딩공정(34), 전면부(12)의 둘레부분에 탈수공(12a)을 형성시키는 피어싱공정(35), 입구(13)를 둥글게 마무리하는 커링공정(36)을 차례로 거친다.The process of manufacturing the front portion 12 is performed in a separate manufacturing line because it is a separate process, as shown in FIG. When manufacturing the front part 12, the blanking process 31 which cuts a disc in a circular shape, the normal drawing process 32 which forms a curved surface etc. in the front part 12, and the unnecessary part around the front part 12, A bending process 34 for bending a front portion 12 and a front portion 12 so as to perform a trimming process 33 for cutting a portion and a seaming process 38 for coupling with a front end of a cylindrical portion 10. The piercing process 35 which forms the dehydration hole 12a in the circumference | surroundings of this, and the curing process 36 which roundly completes the inlet 13 are passed in order.

이처럼 원통부(10)와 후면부(11) 일체형인 부품과 전면부(12)의 제조가 각각 완료된 후에는 도 3과 도 4의 (c)에 도시한 바와 같이, 전면부(12)와 둘레와 원통부(10) 전단을 연결하는 시이밍공정(38)을 수행함으로써 제조를 완료한다.After the manufacturing of the cylindrical part 10 and the rear part 11 integral parts and the front part 12 are completed, respectively, as shown in Figs. 3 and 4 (c), The manufacturing is completed by performing a seaming process 38 for connecting the front end of the cylindrical portion 10.

이상에서 상세히 설명한 바와 같이, 본 발명에 따른 드럼세탁기용 회전드럼은 원통부와 후면부를 딥드로잉공정을 통해 일체형으로 제조하기 때문에 종래보다 부품수를 줄일 수 있고 제조공정을 단순화할 수 있다. 따라서 회전드럼의 제조 시 생산성을 높일 수 있고 제조비용을 줄일 수 있는 효과가 있다.As described in detail above, the drum washing machine drum according to the present invention can be manufactured integrally through the deep drawing process of the cylindrical portion and the rear portion can reduce the number of parts than the conventional and can simplify the manufacturing process. Therefore, it is possible to increase productivity when manufacturing the rotating drum and to reduce the manufacturing cost.

Claims (8)

둘레의 원통부, 상기 원통부의 후단에 연결된 후면부, 상기 원통부의 전단에 연결되며 입구를 갖춘 전면부를 포함하는 드럼세탁기용 회전드럼에 있어서,In the drum rotating drum for washing machine comprising a cylindrical portion, a rear portion connected to the rear end of the cylindrical portion, a front portion connected to the front end of the cylindrical portion and having an inlet, 상기 원통부와 상기 후면부가 딥드로잉가공을 통해 일체형을 마련된 것을 특징으로 하는 드럼세탁기용 회전드럼.The drum and the rear drum drum washing machine, characterized in that the integral type is provided through a deep drawing process. 제1항에 있어서,The method of claim 1, 상기 원통부의 선단과 상기 전면부가 시이밍을 통해 연결된 것을 특징으로 하는 드럼세탁기용 회전드럼.A drum washing machine drum, characterized in that the front end and the front portion of the cylindrical portion is connected through seaming. 제1항에 있어서,The method of claim 1, 상기 원통부와 상기 후면부가 오스테나이트계 스테인리스 강판으로 성형된 것을 특징으로 하는 드럼세탁기용 회전드럼.The cylindrical drum washing machine drum, characterized in that the rear portion is formed of an austenitic stainless steel sheet. 둘레의 원통부, 상기 원통부 후단에 연결된 후면부, 상기 원통부 전단에 연결되며 입구를 갖춘 전면부를 포함하는 드럼세탁기용 회전드럼 제조방법에 있어서,In the rotating drum manufacturing method for a drum washing machine comprising a cylindrical portion, a rear portion connected to the rear end of the cylindrical portion, a front portion connected to the front end of the cylindrical portion and having an inlet, 딥드로잉과 아이어닝을 거쳐 상기 원통부와 후면부를 일체로 성형하고, 드로잉을 거쳐 상기 전면부를 별도로 성형하며, 시이밍을 통해 상기 전면부와 상기 원통부 선단을 연결하는 공정을 포함하는 것을 특징으로 하는 드럼세탁기용 회전드럼 제조방법. And forming the cylindrical portion and the rear portion integrally through deep drawing and ironing, separately forming the front portion through drawing, and connecting the front portion and the tip of the cylindrical portion through seaming. Rotating drum manufacturing method for a drum washing machine. 제4항에 있어서,The method of claim 4, wherein 상기 원통부와 후면부를 제조하는 공정은 상기 딥드로잉 전에 브랭킹을 통해 원판을 절단하고, 상기 아이어닝 후에 불필요한 부분을 트리밍하며, 탈수공 형성을 위해 상기 원통부에 피어싱을 하고, 상기 시이밍을 위해 상기 원통부 전단을 벤딩하는 공정을 포함하는 것을 특징으로 하는 드럼세탁기용 회전드럼 제조방법.The process of manufacturing the cylindrical portion and the back portion cuts the disc through blanking before the deep drawing, trims the unnecessary portion after the ironing, pierces the cylindrical portion to form a dehydration hole, and performs the seaming. Rotating drum manufacturing method for a drum washing machine characterized in that it comprises a step of bending the cylindrical shear. 제5항에 있어서,The method of claim 5, 상기 아이어닝 공정은 1차 아이어닝과 2차 아이어닝을 포함하고,The ironing process includes primary ironing and secondary ironing, 상기 딥드로잉과 상기 1차 및 2차 아이어닝은 순차적으로 연속하여 수행하는 것을 특징으로 하는 드럼세탁기용 회전드럼 제조방법.The deep drawing and the drum washing machine manufacturing method of the drum washing machine, characterized in that the first and second ironing is performed in sequence. 제4항에 있어서,The method of claim 4, wherein 상기 전면부를 제조하는 공정은 상기 드로잉 전에 블랭킹을 통해 원판을 절단하고, 상기 드로잉 후에 불필요한 부분을 트리밍하며, 상기 시이밍을 위해 상기 전면부 둘레를 벤딩하고, 탈수공 형성을 위해 상기 전면부 둘레 쪽에 피어싱을 하며, 상기 전면부의 입구를 커링하는 공정을 포함하는 것을 특징으로 하는 드럼세탁기용 회전드럼 제조방법.The process of manufacturing the front part cuts the disc through blanking before the drawing, trims unnecessary parts after the drawing, bends around the front part for the seaming, and around the front part to form a dehydration hole. Piercing, the drum washing machine drum manufacturing method comprising the step of curing the inlet of the front portion. 제4항에 있어서,The method of claim 4, wherein 상기 원통부와 후면부는 오스테나이트계 스테인리스강판으로 성형하는 것을 특징으로 하는 드럼세탁기용 회전드럼 제조방법.The cylindrical portion and the rear portion rotating drum manufacturing method for a drum washing machine, characterized in that formed by austenitic stainless steel sheet.
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Cited By (6)

* Cited by examiner, † Cited by third party
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KR20110121159A (en) * 2010-04-30 2011-11-07 엘지전자 주식회사 Laundry machine
KR101307861B1 (en) * 2007-04-03 2013-09-12 삼성전자주식회사 Method of manufacturing a housing and drum of washing machine
CN104846589A (en) * 2014-02-17 2015-08-19 宁波吉德家电科技有限公司 Roller washing machine inner barrel and manufacturing method for same
CN106544819A (en) * 2015-09-17 2017-03-29 青岛海尔洗衣机有限公司 A kind of washing machine inner tub and production technology and washing machine
US10081898B2 (en) 2010-04-30 2018-09-25 Lg Electronics Inc. Laundry apparatus
CN114178796A (en) * 2021-12-27 2022-03-15 无锡市正红车厢有限公司 Method for processing roller hole for roller washing machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100238896B1 (en) 1997-06-27 2000-01-15 전주범 Heating processing method of a tub-surface for washine machine
KR100279172B1 (en) * 1998-05-13 2001-01-15 차국헌 Manufacturing method of drum housing for reducer assembly of washing machine
ES2214104B1 (en) 2002-07-03 2005-12-16 Bsh Electrodomesticos España, S.A. WASHER DRUM.

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101307861B1 (en) * 2007-04-03 2013-09-12 삼성전자주식회사 Method of manufacturing a housing and drum of washing machine
KR20110121159A (en) * 2010-04-30 2011-11-07 엘지전자 주식회사 Laundry machine
US10081898B2 (en) 2010-04-30 2018-09-25 Lg Electronics Inc. Laundry apparatus
US10179964B2 (en) 2010-04-30 2019-01-15 Lg Electronics Inc. Laundry machine
US11293132B2 (en) 2010-04-30 2022-04-05 Lg Electronics Inc. Laundry machine
US12043943B2 (en) 2010-04-30 2024-07-23 Lg Electronics Inc. Laundry machine
CN104846589A (en) * 2014-02-17 2015-08-19 宁波吉德家电科技有限公司 Roller washing machine inner barrel and manufacturing method for same
CN106544819A (en) * 2015-09-17 2017-03-29 青岛海尔洗衣机有限公司 A kind of washing machine inner tub and production technology and washing machine
CN114178796A (en) * 2021-12-27 2022-03-15 无锡市正红车厢有限公司 Method for processing roller hole for roller washing machine
CN114178796B (en) * 2021-12-27 2024-01-30 无锡市正红车厢有限公司 Method for processing roller hole for roller washing machine

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