KR20130084774A - Method for manufacturing shaft adapted door hinge of washing machine - Google Patents

Method for manufacturing shaft adapted door hinge of washing machine Download PDF

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Publication number
KR20130084774A
KR20130084774A KR1020120005603A KR20120005603A KR20130084774A KR 20130084774 A KR20130084774 A KR 20130084774A KR 1020120005603 A KR1020120005603 A KR 1020120005603A KR 20120005603 A KR20120005603 A KR 20120005603A KR 20130084774 A KR20130084774 A KR 20130084774A
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KR
South Korea
Prior art keywords
round bar
upsetting
shaft portion
mold
extrusion
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KR1020120005603A
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Korean (ko)
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김광환
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김광환
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Publication of KR20130084774A publication Critical patent/KR20130084774A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/06—Making machine elements axles or shafts
    • B21K1/12—Making machine elements axles or shafts of specially-shaped cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08—Upsetting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/12—Forming profiles on internal or external surfaces

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

Abstract

PURPOSE: A manufacturing method of a hinge shaft for a door of a washing machine is provided to increase productivity, to reduce production costs, and to produce high quality of shaft products. CONSTITUTION: A manufacturing method of a hinge shaft for a door of a washing machine is as follows: a step of cutting a long round bar material at a predetermined length to form a round bar body (10a); a step of forming a round bar body (10b) with a tetragonally stepped part (21) to form an inner shaft part (11) and square bar parts (14,15); a step of forming an outer shaft part (12) with tetragonal surfaces and forming a primary plastic deformation part (22) by upsetting the opposite side of the outer shaft part; and a step of upsetting again to form the two square bar parts and a partition plate (13).

Description

세탁기 도어용 힌지 샤프트 제조방법{METHOD FOR MANUFACTURING SHAFT ADAPTED DOOR HINGE OF WASHING MACHINE}Manufacturing method of hinge shaft for washing machine door {METHOD FOR MANUFACTURING SHAFT ADAPTED DOOR HINGE OF WASHING MACHINE}

본 발명은 세탁기 도어에 적용되는 힌지용 샤프트를 제조하는 방법에 관한 것으로서, 보다 상세하게는 압출과 업세팅 성형으로 힌지 샤프트 제품 성형을 완성할 수 있는 세탁기 도어용 힌지 샤프트 제조방법에 관한 것이다.
The present invention relates to a method for manufacturing a hinge shaft applied to a washing machine door, and more particularly, to a hinge shaft manufacturing method for a washing machine door capable of completing a hinge shaft product molding by extrusion and upsetting molding.

대한민국 특허 제10-0386581호(2003년 5월 23일, 등록)에 "경사형 도어를 갖는 세탁기의 도어 힌지 어셈블리"가 소개되어 있다.Korean Patent No. 10-0386581 (registered May 23, 2003) discloses a "door hinge assembly of a washing machine having an inclined door".

상기 경사형 도어를 갖는 세탁기의 도어 힌지 어셈블리는 도어에 구비되어 상기 도어와 함께 회전하고 소정부에 원통형의 회전축을 갖는 회전브라켓과, 상기 본체에 구비되어 상기 회전브라켓을 회동가능하도록 지지하는 고정브라켓과, 상기 회전축에 구비되어 상기 도어가 자중에 의해 닫힐 때 그 닫히려고 하는 힘에 대한 모멘트와 평형이 되도록 상기 회전축에 소정의 힘을 가하는 제어수단이 포함되어 이루어짐을 특징으로 하는 경사형 도어를 갖는다.The door hinge assembly of the washing machine having the inclined door is provided on the door to rotate together with the door and has a cylindrical rotating shaft in a predetermined portion, and a fixed bracket provided on the main body to support the rotating bracket rotatably. And a control means provided on the rotating shaft to apply a predetermined force to the rotating shaft so that when the door is closed by its own weight, it is in equilibrium with a moment for the closing force. .

그러나, 상기 특허 공보에는 힌지 어셈블리에 적용되는 회전축(샤프트)을 제조하는 공정이 소개되어 있지 않으며, 종래의 경우, 절삭가공방법으로 회전축을 제조하였기 때문에 제조비용이 많이 소요되는 단점이 있었다.
However, the patent publication does not introduce a process for manufacturing a rotating shaft (shaft) applied to the hinge assembly, in the conventional case, because the manufacturing of the rotating shaft by the cutting method has a disadvantage in that a large manufacturing cost.

따라서, 본 발명의 목적은 압출과 업세팅 성형으로 힌지 샤프트 제품을 완성할 수 있어, 생산성 향상과 생산원가 절감에 기여할 수 있고 일정한 높은 품질의 샤프트 제품을 생산할 수 있는 세탁기 도어용 힌지 샤프트 제조방법을 제공하는 것이다.
Accordingly, an object of the present invention is to produce a hinge shaft product by extrusion and upsetting molding, which can contribute to improved productivity and reduced production cost, and to produce a hinge shaft for a washing machine door that can produce a high quality shaft product. To provide.

상기와 같은 목적을 달성하기 위한 본 발명에 따른 세탁기 도어용 힌지 샤프트 제조방법은 긴 환봉 소재에서 소정의 길이의 환봉 본체로 절단하고, Hinge shaft manufacturing method for a washing machine door according to the present invention for achieving the above object is cut into a round bar body of a predetermined length from a long round bar material,

절단된 환봉 본체의 일단을 압출성형방법으로 성형하여, 내축부와 각재부 성형을 위한 사각면 단차부가 형성된 1차 환봉 본체를 성형하고, One end of the cut round bar body is molded by an extrusion molding method to form a primary round bar body having a square step step portion for forming an inner shaft portion and a square member portion,

1차 환봉 본체의 타단을 압출성형방법으로 성형하여, 타단에 사각면을 포함하는 외축부를 형성하는 것과 동시에 외축부의 반대편을 업세팅하여 1차 소성 변형부를 성형함으로써, 외축부, 내축부, 사각면 단차부 및 1차 소성변형부가 형성된 2차 환봉 본체를 성형하고, The other end of the primary round bar body is molded by an extrusion molding method to form an outer shaft portion including a quadrangular surface at the other end and upsetting the opposite side of the outer shaft portion to form a primary plastic deformation portion, thereby forming an outer shaft portion, an inner shaft portion, a square surface. Forming a secondary round bar body having a stepped portion and a primary plastic deformation portion,

다시 업세팅 방법으로 격판과 2개의 각재부를 성형함으로써, 일단에 내축부, 2개의 각재부 및 격판이 형성되고 타단에 외축부가 형성된 힌지 샤프트의 성형을 완성하는 것을 특징으로 한다.By again forming the diaphragm and the two angular portion by the upsetting method, the inner shaft portion, the two angular portion and the diaphragm is formed at one end, characterized in that the molding of the hinge shaft formed with the outer shaft portion at the other end.

상기와 같은 세탁기 도어용 힌지 샤프트 제조방법에 있어서, 상기 1차 환봉 본체는 절단된 환봉 본체가 1차 압출금형의 압출홈 입구로 공급되면, 가동다이가 고정다이에 합형되고, 가동다이의 펀치에 의해 절단된 환봉 본체가 강제로 1차 압출금형의 압출홈으로 인입됨으로써, 1차 압출금형의 압출홈의 형상으로 압출성형되어, 일단에 내축부와 사각면 단차부가 형성되고,In the method of manufacturing a hinge shaft for a washing machine door as described above, when the round bar body is cut and supplied to the inlet of the extrusion groove of the primary extrusion mold, the movable die is molded into the fixed die, and the punch of the movable die When the round bar body cut by force is forced into the extrusion groove of the primary extrusion mold, it is extruded into the shape of the extrusion groove of the primary extrusion mold, and an inner shaft portion and a square step step portion are formed at one end.

상기 2차 환봉 본체는 가동다이의 2차 압출금형과 고정다이의 업세팅 금형이 합형되면, 가동다이의 2차 압출금형에 의해 타단이 압출성형되고, 일단이 업세팅 금형의 업세팅홈 형상으로 1차 업세팅 성형됨으로써, 일단에 내축부, 단차부 및 1차 소성변형부가 형성되고, When the second extrusion mold of the movable die and the upsetting mold of the fixed die are combined, the secondary round bar main body is extruded at the other end by the second extrusion mold of the movable die, and one end is formed in the upsetting groove shape of the upsetting mold. By primary upsetting, the inner shaft portion, the step portion and the primary plastic deformation portion are formed at one end,

상기 힌지 샤프트는 가동다이의 2차 업세팅 금형과 고정다이의 업세팅 금형이 합형되면, 2차 업세팅 성형에 의해, 일단에 내축부, 2개의 각재부 및 격판이 형성됨으로써, 제품 성형이 완성되는 것을 특징으로 한다.
When the second upsetting mold of the movable die and the upsetting mold of the fixed die are combined together, the hinge shaft is formed with an inner shaft portion, two corner portions, and a diaphragm at one end by second upsetting molding, thereby completing product molding. It is characterized by.

이것에 의해, 본 발명에 따른 세탁기 도어용 힌지 샤프트 제조방법은 소성가공장치에서 일련의 공정을 거쳐 제품을 소성가공하기 때문에 제품이 정밀하고, 조직이 치밀하고, 각각의 환봉 본체와 어느 한 환봉 본체를 성형할 때, 다른 환봉 본체 및 힌지 샤프트 완제품도 같이 성형할 수 있어, 빠르고 저렴하게 생산할 수 있는 효과가 있다.
As a result, the hinge shaft manufacturing method for a washing machine door according to the present invention is precisely processed, the structure is dense, and each round bar body and one round bar body, because the plastic processing of the product through a series of processes in the plastic processing device. When molding, the other round bar body and the hinge shaft can also be molded together, there is an effect that can be produced quickly and inexpensively.

도 1은 본 발명에 따른 세탁기 도어용 힌지 샤프트 제조방법에 의해 성형된 힌지 샤프트를 도시한 사시도이다.
도 2는 본 발명에 따른 세탁기 도어용 힌지 샤프트 제조방법을 설명하기 위해 각 공정별로 성형되는 제품을 도시한 것이다.
도 3은 본 발명에 따른 세탁기 도어용 힌지 샤프트 제조방법을 구현할 수 있는 소성가공기계의 요부를 개략적 단면으로 도시한 것이다.
도 4 내지 도 7은 세탁기 도어용 힌지 샤프트 제조방법을 설명하기 위해 소성가공장치에서 각각의 공정이 이루어지는 과정을 도시한 단면도이다.1 is a perspective view showing a hinge shaft molded by a hinge shaft manufacturing method for a washing machine door according to the present invention.
Figure 2 illustrates a product molded for each process to explain a hinge shaft manufacturing method for a washing machine door according to the present invention.
Figure 3 is a schematic cross-sectional view showing the main portion of the plastic processing machine that can implement the hinge shaft manufacturing method for a washing machine door according to the present invention.
4 to 7 are cross-sectional views showing a process in which each process is performed in a plastic processing apparatus to explain a hinge shaft manufacturing method for a washing machine door.

이하, 본 발명의 바람직한 실시예를 도면을 참조하여 상세하게 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

도 1을 참조하면, 본 발명에 따른 세탁기 도어용 힌지 샤프트(10)는 힌지의 내부에 배치되는 내축부(11)와 힌지의 외부에 배치되는 외축부(12) 사이에 격판(13)이 배치되고, 내축부(11), 외축부(12) 및 격판(13)이 일체로 형성되고, 격판(13)과 내축부(11) 사이에 2개의 각재부(14, 15)가 일체로 형성된다.Referring to FIG. 1, a hinge shaft 10 for a washing machine door according to the present invention has a plate 13 disposed between an inner shaft portion 11 disposed inside the hinge and an outer shaft portion 12 disposed outside the hinge. The inner shaft portion 11, the outer shaft portion 12, and the diaphragm 13 are integrally formed, and the two angler portions 14 and 15 are integrally formed between the diaphragm 13 and the inner shaft portion 11. .

상기와 같이 형성된 본 발명에 따른 세탁기 도어용 힌지 샤프트의 제조방법을 도 2 내지 도 7을 참조하여 설명하기로 한다.The manufacturing method of the hinge shaft for a washing machine door according to the present invention formed as described above will be described with reference to FIGS. 2 to 7.

도 2를 참조하면, 본 발명에 따른 세탁기 도어용 힌지 샤프트 제조방법은, (a)에 도시된 것처럼, 긴 환봉 소재에서 소정의 길이의 환봉 본체(10a)로 절단하고, (b)에 도시된 것처럼, 절단된 환봉 본체(10a)의 일단을 압출성형방법으로 성형하여, 내축부(11)와 각재부 성형을 위한 사각면 단차부(21)가 형성된 환봉 본체(10b)를 성형하고, (c)에 도시된 것처럼, 내축부(11)와 사각면 단차부(21)가 형성된 환봉 본체(10b)의 타단을 압출성형방법으로 성형하여, 타단에 사각면을 포함하는 외축부(12)를 형성하는 것과 동시에 외축부(12)의 반대편을 업세팅하여 1차 소성 변형부(22)를 성형함으로써, 외축부(12), 내축부(11), 사각면 단차부(21) 및 1차 소성변형부(22)가 형성된 환봉 본체(10c)를 성형하고, (d)에 도시된 것처럼, 다시 업세팅 방법으로 격판(13)과 2개의 각재부(14, 15)를 성형함으로써, 일단에 내축부(11), 2개의 각재부(14, 15) 및 격판(13)이 형성되고 타단에 외축부(12)가 형성된 힌지 샤프트(10)의 성형을 완성한다.Referring to Figure 2, the hinge shaft manufacturing method for a washing machine door according to the present invention, as shown in (a), cut into a round bar body (10a) of a predetermined length from a long round bar material, as shown in (b) As described above, one end of the cut round bar body 10a is molded by an extrusion molding method to form a round bar body 10b having an inner shaft portion 11 and a square surface stepped portion 21 for forming a square member portion, and (c As shown in), the other end of the round bar body 10b having the inner shaft portion 11 and the square surface stepped portion 21 is molded by an extrusion molding method to form the outer shaft portion 12 including the square surface at the other end. At the same time, the primary plastic deformation portion 22 is formed by upsetting the opposite side of the outer shaft portion 12 so that the outer shaft portion 12, the inner shaft portion 11, the rectangular stepped portion 21, and the primary plastic deformation are formed. The round bar main body 10c in which the part 22 is formed is shape | molded, and as shown in (d), the diaphragm 13 and the two square parts 14 and 15 are formed again by an upsetting method. So, to complete the molding of the inside shaft (11), the two timber parts (14, 15) and a plate hinge shaft 10, 13 is formed and the outer shaft portion 12 at the other end formed at one end.

상기와 같은 본 발명에 따른 세탁기 도어용 힌자 샤프트 제조방법을 구현하기 위한 장치와 이 장치에 의해 제품이 성형되는 공정을 도 3 내지 도 7을 참조하여 설명하기로 한다.An apparatus for implementing a method for manufacturing a hindshaft shaft for a washing machine door according to the present invention as described above and a process of forming a product by the apparatus will be described with reference to FIGS. 3 to 7.

도 3을 참조하면, 고정 다이(100)에 1차 압출금형(110), 업세팅 금형(120)을 상하로 배치하고, 가동 다이(200)에 펀치(210), 2차 압출 금형(220) 및 2차 업세팅 금형(230)을 상하로 순차적으로 배치한다.Referring to FIG. 3, the primary extrusion mold 110 and the upsetting mold 120 are disposed up and down on the fixed die 100, and the punch 210 and the secondary extrusion mold 220 are disposed on the movable die 200. And the second upsetting mold 230 are sequentially disposed up and down.

여기서, 상기 1차 압출금형(110)에는 내축부(11)와 사각면 단차부(21)가 형성된 환봉 본체(10b)를 성형할 수 있도록, 내축부(11)와 단차부(21)의 형상에 대응되는 단차진 압출홈(111)이 형성된다.Here, the shape of the inner shaft portion 11 and the stepped portion 21 in the primary extrusion mold 110 so that the round bar body (10b) formed with the inner shaft portion 11 and the rectangular stepped portion 21 is formed. Stepped extrusion groove 111 corresponding to the formed.

상기 업세팅 금형(120)에는 내축부(11), 단차부(21) 및 1차 소성변형부(22)가 형성된 환봉 본체(10c)를 성형할 수 있도록, 업세팅홈(121)이 형성된다.An upsetting groove 121 is formed in the upsetting mold 120 to form a round bar body 10c having an inner shaft portion 11, a step portion 21, and a primary plastic deformation portion 22. .

상기 2차 압출금형(220)에는 외축부(12)가 형성된 환봉 본체(10c)를 성형할 수 있도록, 외축부(12)에 대응되는 형상의 압출홈(221)이 형성된다.The second extrusion mold 220 is formed with an extrusion groove 221 having a shape corresponding to the outer shaft portion 12 so as to shape the round bar body 10c having the outer shaft portion 12 formed thereon.

상기 2차 업세팅 금형(230)에는 외축부(12)를 수용할 수 있는 홈(231)과 격판(13)을 성형할 수 있는 홈(232)이 형성된다.The secondary upsetting mold 230 is provided with a groove 231 for accommodating the outer shaft portion 12 and a groove 232 for molding the diaphragm 13.

상기와 같은 소성가공장치에서, 도 4에 도시된 것처럼, 소정의 길이로 절단된 환봉 본체(10a)가 1차 압출금형(110)의 압출홈(111) 입구로 공급되면, 도 5에 도시된 것처럼, 가동다이(200)가 화살표(240) 방향인 고정다이(100) 쪽으로 이동되어, 가동다이(200)가 고정다이(100)에 합형되면, 가동다이(200)의 펀치(210)에 의해 환봉 본체(10a)가 강제로 1차 압출금형(110)의 압출홈(111)으로 인입됨으로써, 1차 압출금형(110)의 압출홈(111)의 형상으로 압출성형되어, 도 2의 (b)에 도시된 것처럼, 내축부(11)와 단차부(21)가 형성된 환봉 본체(10b)가 성형된다.In the plastic processing apparatus as described above, as shown in FIG. 4, when the round bar body 10a cut to a predetermined length is supplied to the inlet of the extrusion groove 111 of the primary extrusion mold 110, it is shown in FIG. 5. As described above, when the movable die 200 is moved toward the fixed die 100 in the direction of the arrow 240 and the movable die 200 is integrated with the fixed die 100, the punch 210 of the movable die 200 is driven. The round bar body 10a is forcibly drawn into the extrusion groove 111 of the primary extrusion mold 110, thereby being extruded into the shape of the extrusion groove 111 of the primary extrusion mold 110, and FIG. As shown in), the round bar main body 10b having the inner shaft portion 11 and the step portion 21 is formed.

이후, 도 6에 도시된 것처럼, 가동다이(200)가 원위치로 후퇴한 뒤 화살표(250) 방향으로 상승되어, 가동다이(200)의 2차 압출금형(220)이 고정다이(100)의 1차 압출금형(110)과 같은 위치에 배치된다.Then, as shown in Figure 6, the movable die 200 is retracted to its original position and then raised in the direction of the arrow 250, the secondary extrusion mold 220 of the movable die 200 is 1 of the fixed die 100 It is disposed in the same position as the primary extrusion mold (110).

이후, 도 7에 도시된 것처럼, 가동다이(200)가 화살표(255) 방향인 고정다이(100) 쪽으로 이동되어, 가동다이(200)의 2차 압출금형(220)과 고정다이(100)의 1차 압출금형(110)이 합형되면, 1차 압출금형(110)의 이젝트 핀(도시하지 않음)에 의해 환봉 본체(10b)를 1차 압출금형(110)에서 가동다이(200)의 2차 압출금형(220)으로 공급된다.Then, as shown in Figure 7, the movable die 200 is moved toward the fixed die 100 in the direction of the arrow 255, so that the second extrusion die 220 and the fixed die 100 of the movable die 200 When the primary extrusion mold 110 is assembled, the round bar body 10b is moved from the primary extrusion mold 110 to the secondary of the movable die 200 by the eject pin (not shown) of the primary extrusion mold 110. The extrusion mold 220 is supplied.

이후, 다시 도 4에 도시된 것처럼, 가동다이(200)가 후퇴한 뒤 원위치로 하강된다. 이때, 가동다이(200)의 2차 압출금형(220)에 환봉 본체(10b)에 끼워져 있게 된다.Thereafter, as shown in FIG. 4 again, the movable die 200 is retracted and then lowered to its original position. At this time, the second extrusion mold 220 of the movable die 200 is fitted to the round bar body (10b).

이후, 도 5에 도시된 것처럼, 가동다이(200)가 화살표(240) 방향인 고정다이(100) 쪽으로 이동되어, 가동다이(200)의 2차 압출금형(220)과 고정다이(100)의 업세팅 금형(120)이 합형되면, 환봉 본체(10b)은 가동다이(200)의 2차 압출금형(220)에 의해 타단이 압출성형되고, 일단이 업세팅 금형(120)의 업세팅홈(121) 형상으로 1차 업세팅 성형됨으로써, 도 2의 (c)에 도시된 것처럼, 일단에 내축부(11), 단차부(21) 및 1차 소성변형부(22)가 형성된 환봉 본체(10c)가 성형된다.Then, as shown in Figure 5, the movable die 200 is moved toward the fixed die 100 in the direction of the arrow 240, so that the second extrusion die 220 and the fixed die 100 of the movable die 200 When the upsetting mold 120 is molded, the other end of the round bar body 10b is extruded by the second extrusion mold 220 of the movable die 200, and one end of the upsetting groove 120 of the upsetting mold 120 is formed. 121) the round bar body 10c having the inner shaft portion 11, the stepped portion 21, and the primary plastic deformation portion 22 formed at one end thereof as shown in FIG. ) Is molded.

이후, 도 6에 도시된 것처럼, 가동다이(200)가 원위치로 후퇴한 뒤 화살표(250) 방향으로 상승되어, 가동다이(200)의 2차 업세팅 금형(230)이 고정다이(100)의 환봉 본체(10c)가 끼워진 업세팅 금형(120)과 같은 위치에 배치된다.Thereafter, as shown in FIG. 6, the movable die 200 is retracted to its original position and then raised in the direction of the arrow 250, so that the secondary upsetting mold 230 of the movable die 200 is moved to the fixed die 100. The round bar main body 10c is arrange | positioned in the same position as the upsetting die 120 inserted.

이후, 도 7에 도시된 것처럼, 가동다이(200)가 화살표(255) 방향인 고정다이(100) 쪽으로 이동되어, 가동다이(200)의 2차 업세팅 금형(230)과 고정다이(100)의 업세팅 금형(120)이 합형되면, 2차 업세팅 성형에 의해, 일단에 내축부(11), 2개의 각재부(14, 15) 및 격판(13)이 형성되고 타단에 외축부(12)가 형성된 힌지 샤프트(10)가 형성된다.Subsequently, as shown in FIG. 7, the movable die 200 is moved toward the fixed die 100 in the direction of the arrow 255, so that the secondary upsetting mold 230 and the fixed die 100 of the movable die 200 are moved. When the upsetting die 120 is molded, the inner shaft portion 11, two corner portions 14 and 15 and the diaphragm 13 are formed at one end by the second upsetting molding, and the outer shaft portion 12 is formed at the other end. Is formed, the hinge shaft 10 is formed.

이후, 다시 도 4에 도시된 것처럼, 가동다이(200)가 후퇴한 뒤 원위치로 후퇴할 때, 고정다이(100)의 업세팅 금형(120)에 장착된 힌지 샤프트(10) 완성품이 이젝트 핀(도시하지 않음)에 의해 업세팅 금형(110)에서 낙하된다. Then, as shown in FIG. 4 again, when the movable die 200 is retracted and then retracted to its original position, the finished product of the hinge shaft 10 mounted on the upsetting mold 120 of the fixed die 100 is ejected pin ( (Not shown) to fall from the upsetting mold 110.

이와 같이, 본 발명에 따른 세탁기 도어용 힌지 샤프트 제조방법은 소성가공장치에서 일련의 공정을 거쳐 제품을 소성가공하기 때문에 제품이 정밀하고, 조직이 치밀하고, 환봉 본체(10b)이 형성될 때, 환봉 본체(10c) 및 힌지 샤프트(10d) 완제품도 같이 성형되어, 제품을 빠르고 저렴하게 생산할 수 있는 장점이 있다. Thus, the hinge shaft manufacturing method for a washing machine door according to the present invention because the plastic processing the product through a series of processes in the plastic processing apparatus, the product is precise, the structure is dense, when the round bar body (10b) is formed, Round bar body (10c) and the hinge shaft (10d) finished product is also molded, there is an advantage that can produce a product quickly and inexpensively.

10 : 힌지 샤프트 11 : 내축부
12 : 외축부 13 : 격판
14, 15 : 각재부10: hinge shaft 11: inner shaft
12: outer shaft portion 13: diaphragm
14, 15: each part

Claims (2)

긴 환봉 소재에서 소정의 길이의 환봉 본체(10a)로 절단하고,
절단된 환봉 본체(10a)의 일단을 압출성형방법으로 성형하여, 내축부(11)와 각재부 성형을 위한 사각면 단차부(21)가 형성된 환봉 본체(10b)를 성형하고,
환봉 본체(10b)의 타단을 압출성형방법으로 성형하여, 타단에 사각면을 포함하는 외축부(12)를 형성하는 것과 동시에 외축부(12)의 반대편을 업세팅하여 1차 소성 변형부(22)를 성형함으로써, 외축부(12), 내축부(11), 사각면 단차부(21) 및 1차 소성변형부(22)가 형성된 환봉 본체(10c)를 성형하고,
다시 업세팅 방법으로 격판(13)과 2개의 각재부(14, 15)를 성형함으로써, 일단에 내축부(11), 2개의 각재부(14, 15) 및 격판(13)이 형성되고 타단에 외축부(12)가 형성된 힌지 샤프트(10)의 성형을 완성하는 것을 특징으로 하는 세탁기 도어용 힌지 샤프트 제조방법.
Cut from the long round bar material into a round bar body (10a) of a predetermined length,
One end of the cut round bar main body 10a is molded by an extrusion molding method to form a round bar main body 10b having an inner shaft portion 11 and a square step step portion 21 for forming a corner member,
The other end of the round bar body 10b is molded by an extrusion molding method to form an outer shaft portion 12 including a square surface at the other end and upsetting the opposite side of the outer shaft portion 12 to the primary plastic deformation portion 22. ), Thereby forming a round bar body 10c having an outer shaft portion 12, an inner shaft portion 11, a square surface step portion 21, and a primary plastic deformation portion 22,
By forming the diaphragm 13 and the two angled portions 14 and 15 again by the upsetting method, the inner shaft portion 11, the two angled portions 14 and 15 and the diaphragm 13 are formed at one end and the other end thereof. A hinge shaft manufacturing method for a washing machine door, characterized in that the molding of the hinge shaft (10) in which the outer shaft portion (12) is formed.
제 1 항에 있어서,
상기 환봉 본체(10b)는 환봉 본체(10a)가 1차 압출금형(110)의 압출홈(111) 입구로 공급되면, 가동다이(200)가 고정다이(100)에 합형되고, 가동다이(200)의 펀치(210)에 의해 환봉 본체(10a)가 강제로 1차 압출금형(110)의 압출홈(111)으로 인입됨으로써, 1차 압출금형(110)의 압출홈(111)의 형상으로 압출성형되어, 일단에 내축부(11)와 사각면 단차부(21)가 형성되고,
상기 환봉 본체(10c)는 가동다이(200)의 2차 압출금형(220)과 고정다이(100)의 업세팅 금형(120)이 합형되면, 가동다이(200)의 2차 압출금형(220)에 의해 타단이 압출성형되고, 일단이 업세팅 금형(120)의 업세팅홈(121) 형상으로 1차 업세팅 성형됨으로써, 일단에 내축부(11), 단차부(21) 및 1차 소성변형부(22)가 형성되고,
상기 힌지 샤프트(10)는 가동다이(200)의 2차 업세팅 금형(230)과 고정다이(100)의 업세팅 금형(120)이 합형되면, 2차 업세팅 성형에 의해, 일단에 내축부(11), 2개의 각재부(14, 15) 및 격판(13)이 형성됨으로써, 제품 성형이 완성되는 것을 특징으로 하는 세탁기 도어용 힌지 샤프트 제조방법.

The method of claim 1,
When the round bar body 10b is supplied to the inlet of the extrusion groove 111 of the primary extrusion mold 110, the movable die 200 is molded into the fixed die 100, and the movable die 200 is provided. Round rod body 10a is forcibly drawn into the extrusion groove 111 of the primary extrusion mold 110 by the punch 210 of FIG. 1, thereby extruding to the shape of the extrusion groove 111 of the primary extrusion mold 110. It is molded, the inner shaft portion 11 and the rectangular stepped portion 21 is formed at one end,
The round bar body 10c is a secondary extrusion mold 220 of the movable die 200 when the secondary extrusion mold 220 of the movable die 200 and the upsetting mold 120 of the fixed die 100 are combined. The other end is extruded, and one end is first upset-molded into the shape of the upsetting groove 121 of the upsetting mold 120, so that the inner shaft portion 11, the stepped portion 21, and the primary plastic deformation are formed at one end. Part 22 is formed,
The hinge shaft 10 has an inner shaft portion at one end by secondary upsetting molding when the secondary upsetting mold 230 of the movable die 200 and the upsetting mold 120 of the fixed die 100 are combined together. (11), a method of manufacturing a hinge shaft for a washing machine door, characterized in that the forming of the product is completed by forming two corner portions (14, 15) and the diaphragm (13).

KR1020120005603A 2012-01-18 2012-01-18 Method for manufacturing shaft adapted door hinge of washing machine KR20130084774A (en)

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CN111112529A (en) * 2019-12-11 2020-05-08 陕西宏远航空锻造有限责任公司 Method and device for forming step shaft die forging with flange plate in middle
KR20200075096A (en) 2018-12-10 2020-06-26 현대자동차주식회사 Door hinge and manufacturing method of the same
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KR20200075096A (en) 2018-12-10 2020-06-26 현대자동차주식회사 Door hinge and manufacturing method of the same
US11085214B2 (en) 2018-12-10 2021-08-10 Hyundai Motor Company Door hinge and method of manufacturing same
KR20200081837A (en) 2018-12-28 2020-07-08 한화글로벌에셋 주식회사 Low specific gravity sheet molding compound
KR20200120812A (en) 2019-04-12 2020-10-22 현대자동차주식회사 Assistance apparatus for opening and closing scissor door of vehicle
CN111112529A (en) * 2019-12-11 2020-05-08 陕西宏远航空锻造有限责任公司 Method and device for forming step shaft die forging with flange plate in middle
CN111112529B (en) * 2019-12-11 2021-10-15 陕西宏远航空锻造有限责任公司 Method and device for forming step shaft die forging with flange plate in middle
KR20210123464A (en) 2020-04-02 2021-10-14 현대자동차주식회사 Transmission cover of electromagnetic wave of radar for vehicle
KR20210143512A (en) 2020-05-20 2021-11-29 현대자동차주식회사 Geopolymer composition for 3D printing
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