KR19980066348A - Manufacturing method of stainless steel thermos - Google Patents

Manufacturing method of stainless steel thermos Download PDF

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Publication number
KR19980066348A
KR19980066348A KR1019970001806A KR19970001806A KR19980066348A KR 19980066348 A KR19980066348 A KR 19980066348A KR 1019970001806 A KR1019970001806 A KR 1019970001806A KR 19970001806 A KR19970001806 A KR 19970001806A KR 19980066348 A KR19980066348 A KR 19980066348A
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South Korea
Prior art keywords
cylindrical body
thermos
manufacturing
flange
expansion
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KR1019970001806A
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Korean (ko)
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KR100226019B1 (en
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김창배
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서원석
흥국공업 주식회사
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Priority to KR1019970001806A priority Critical patent/KR100226019B1/en
Publication of KR19980066348A publication Critical patent/KR19980066348A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/16—Making hollow objects characterised by the use of the objects
    • B21D51/18—Making hollow objects characterised by the use of the objects vessels, e.g. tubs, vats, tanks, sinks, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/026—Enlarging by means of mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/04—Reducing; Closing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Thermally Insulated Containers For Foods (AREA)

Abstract

본 발명은 스테인레스 스틸제 보온병의 제조 방법에 관한 것으로, 원통체의 일단부를 스피닝하여 축관하고 타단을 고무 벌징(Bulging)의 방법으로 확관하여 병체를 형성시키는 종래의 제조 방법에 의하여 제조된 보온병은, 축관된 부위가 얇아져 보온병의 내외 병체를 그 상단에서 접합하는 경우 그 접합 상태가 불량하게 되며 보온 효과가 감소되는 결점이 있었던 바, 본 발명은 원통형 몸체의 일측 단부 직경을 축소시키고 타측의 직경을 확대하여 병체를 제조함에 있어서, 축관시키고자 하는 소기의 형상을 가지는 축관금형(3)에 원통체(2)를 넣고 원통체(2)의 외단을 압타하여 축관부(21)를 형성시키고, 원통체(2)의 테두리에 플렌지(22)를 형성시킨 후, 압입금형(52)으로 원통체(2)의 플렌지(22)를 잡고 확관심재(51)에 밀어 끼우므로서 원통체(2)가 확관되게 하여, 병체의 입구부를 축관시키더라도 축관된 입구부의 두께가 축소되지 아니하여 내외 병체를 접합시킬 경우 그 접합상태가 불량하게 되지 아니하게 하며 나아가 확관작업을 용이하게 하여 보온병의 제조 비용을 절감할 수 있는 제조 방법을 제공하기 위한 것임.The present invention relates to a method of manufacturing a stainless steel thermos, and to a thermospinning by condensing one end of the cylindrical body and expanding the other end by a method of rubber bulging, the thermos manufactured by the conventional manufacturing method of forming a bottle, When the condensed portion is thinned to join the inner and outer pathogens of the thermos at the upper end thereof, the bonding state is poor and the insulation effect is reduced. The present invention reduces the diameter of one end of the cylindrical body and enlarges the diameter of the other side. In the production of the bottle, the cylindrical body 2 is placed in the shaft tube mold 3 having the desired shape to be condensed, and the outer end of the cylindrical body 2 is pushed to form the shaft tube part 21. After forming the flange 22 on the edge of (2), the cylindrical body (2) is held by holding the flange (22) of the cylindrical body (2) with a press-fitting mold (52) and pushing it into the expansion tube (51). Expanding Even if the inlet part of the bottle is condensed, the thickness of the condensed inlet part is not reduced, so that when the inside and outside bottle are joined, the joint state is not poor and furthermore, the expansion operation can be facilitated, thereby reducing the manufacturing cost of the thermos. To provide a manufacturing method.

Description

스테인레스 스틸제 보온병의 제조 방법Manufacturing method of stainless steel thermos

제1도는 본 발명의 방법에 의하여 제조되는 공지의 보온병의 일 예시 단면도1 is a cross-sectional view of an example of a known thermos prepared by the method of the present invention

제2도는 본 발명의 제조 공정 설명도2 is a manufacturing process explanatory diagram of the present invention

제3도는 축관 공정의 설명도3 is an explanatory diagram of the tube process

제4도는 플렌지 성형 공정 설명도4 is a diagram illustrating a flange forming process

제5도는 확관 공정 설명도5 is a diagram illustrating expansion process

＊ 도면의 주요 부분에 대한 간단한 설명* Brief description of the main parts of the drawing

1, 11 : 내외 병체, 10 : 접합부, 2 : 원통체, 21 : 축관부, 22 : 플렌지, 3 : 축관금형, 4 : 플렌지 성형금형, 5 : 확관금형, 51 : 확관심재, 52 : 압입금형1, 11: internal and external pathogens, 10: joint portion, 2: cylindrical body, 21: shaft tube portion, 22: flange, 3: shaft tube mold, 4: flange molding mold, 5: expansion tube, 51: expansion tube, 52: press-fit mold

본 발명은 스테인레스 스틸제 보온병의 제조 방법에 관한 것이다.The present invention relates to a method for producing a stainless steel thermos bottle.

스테인레스 스틸제 보온병은, 일반적으로 스테인레스 스틸판을 절단 절곡하여 제조하는 것이 보통이다. 그리고 병체는 일반적으로 상부 입구부가 좁게 형성되어져야 하므로, 병체의 입구부를 형성시키기 위하여는, 스테인레스 스틸제 파이프의 일부를 축소시키지 않으면 아니된다. 그런데 스테인레스 스틸은 그 신축량이 적어서 파이프로 된 몸체의 일부를 축소시켜 이에 직경이 작은 입구부를 형성시키는 일은 곤란한 일이 아닐 수 없었다.Generally, a stainless steel thermos is produced by cutting and bending a stainless steel plate. In addition, the bottle generally needs to be formed with a narrow upper inlet, so that a part of the stainless steel pipe must be reduced in order to form the inlet of the bottle. However, since stainless steel has a small amount of expansion and contraction, it is difficult to reduce a part of the pipe body to form a small diameter inlet.

그리하여 종래에는 부채꼴 모양으로 형성시킨 판체를 말아서 상하 직경이 다른 파이프를 제조하여 상부는 이를 축소시키고 하부는 이를 확장시켜 병체를 제조하던가, 드로잉(Drawing) 방법에 의하여 별도로 제조된 병의 입구부를 원통체로 된 몸체에 용접등의 방법으로 결합하여 구성시키는 기술이 알려진 바 있다. 그러나 이와 같은 제조방법은 판체의 변형량이 커서 불량률이 높다던가, 병체의 입구부를 드로잉방법으로 형성시키게 되면 재료의 손실이 크고, 공정이 복잡한 결점이 있었던 것이다. 이러한 결점을 해소하기 위하여 원통체의 일단부를 스피닝하여 축관하고 타단을 고무 벌징(Bulging)의 방법으로 확관하여 병체를 형성시키는 기술이 개발된 바 있다.(1990년 특허공고제8218호) 그러나 이와같이 스피닝의 방법으로 축관하게 되면 축관된 부위가 얇아져 제1도에 도시된 바와 같이 보온병의 내외 병체를 그 상단에서 접합하는 경우 그 접합 상태가 불량하게 되며 보온 효과가 감소되는 결점이 있었던 것이다. 이에 본 발명은 원통형 몸체의 일측 단부 직경을 축소시키고 타측의 직경을 확대하여 병체를 제조함에 있어서, 병체의 입구부를 축관시키더라도 축관된 입구부의 두께가 축소되지 아니하여 내외 병체를 접합시킬 경우 그 접합상태가 불량하게 되지 아니하게 하며 나아가 확관 작업을 용이하게 하여 보온병의 제조 비용을 절감할 수 있는 제조 방법을 제공하기 위하여 창출된 것인 바 이와같은 본 발명을 첨부된 도면에 의하여 설명하면 다음과 같다.Thus, conventionally, a plate formed in a fan shape is rolled to prepare a pipe having a different upper and lower diameter, and the upper part is reduced and the lower part is expanded to manufacture a bottle, or the inlet portion of the bottle separately manufactured by a drawing method is cylindrical. It is known to combine the configuration of the body by welding or the like. However, in this manufacturing method, the deformation rate of the plate is large, so that the defective rate is high, or when the inlet portion of the bottle is formed by the drawing method, the loss of material is large and the process is complicated. In order to alleviate this drawback, a technique has been developed in which a cylinder is formed by spinning one end of the cylindrical body and expanding the other end by a rubber bulging method (Patent Publication No. 8218 of 1990). If the condensation by the method of the condensed portion is thinner, as shown in Figure 1 when the inner and outer paths of the thermos are bonded at the upper end of the joint state is poor and there was a defect that the thermal effect is reduced. Therefore, the present invention reduces the diameter of one end of the cylindrical body and enlarges the diameter of the other side in the manufacture of the bottle, even when the inlet of the bottle is condensed, the thickness of the condensed inlet is not reduced, when the inner and outer paths are joined. The present invention will be described with reference to the accompanying drawings, which are created to provide a manufacturing method that can reduce the manufacturing cost of the thermos by facilitating the expansion work and not to make the state worse. .

상부를 축관하고 하부를 확관하여 내외의 병채(1, 11)를 형성시키고, 내외의 병체(1, 11) 상단을 용접하여 이중병체로 형성시키며, 내외의 병체(1, 11) 하부에 바닥을 형성시켜서 보온병을 제조함에 있어서,The upper part is ducted and the lower part is expanded to form inner and outer jars (1, 11), and the upper and lower jars (1, 11) are welded to form a double bottle, and the bottom of the inner and outer jars (1, 11) is formed. In forming a thermos,

병체(1, 11)의 상부 축관 공정은, 제3도에 도시 된 바와 같이, 축관금형(3)에 원통체(2)를 넣고 원통체(2)의 외단을 압타하여 축관부(21)를 형성시키는 공정으로 구성시키고, 축관금형(3)은 축관시키고자 하는 소기의 형상을 가지도록 형성시키며,In the upper shaft pipe process of the bottles 1 and 11, as shown in FIG. 3, the cylindrical pipe 2 is inserted into the shaft pipe mold 3 and the outer end of the cylindrical body 2 is pushed to open the shaft pipe part 21. FIG. In the forming process, the shaft tube mold (3) is formed to have a desired shape to be axial tube,

병체(1, 11)의 하부 확관 공정은, 제4도에 도시된 바와 같이, 축관부(21)가 형성된 원통체(2)의 축관부(21) 반대쪽 테두리를 플렌지성형금형(4)으로 눌러 테두리에 플렌지(22)를 형성시키는 플렌지 형성 공정과, 축관부(21)와 플렌지(22)가 형성된 원통체(2)를 확관금형(5)으로 확관시키는 공정으로 구성시킨다. 확관금형(5)은 확관심재(51)와 원통체(2)를 확관심재(51)로 밀어 넣는 압입금형(52)으로 구성시킨다. 확관심재(51)는 그 외경을, 성형시킬 내외병체(1, 11)의 내경과 동일하게 형성시키며, 압입금형(52)은 원통체(2)의 플렌지(22)를 잡고 미는 다수개의 밀대(521)로 분할 구성시킨다. 그리하여 압입금형(52)으로 원통체(2)의 플렌지(22)를 잡고 원통체(2)를 확관심재(51)에 밀어 끼우면 원통체(2)가 확관되게 한다. 이와같이하여 원통체(2)가 확관되면 원통체(2)의 확관에 따라 다수개의 밀대(521)로 분할 구성된 압입금형(52)이 방사상의 외방으로 벌어지게 된다.As shown in FIG. 4, the lower expansion process of the bottle bodies 1 and 11 presses the edge opposite to the shaft tube portion 21 of the cylindrical body 2 on which the shaft tube portion 21 is formed with the flange forming mold 4. The flange forming process of forming the flange 22 in the edge, and the process of expanding the cylindrical body 2 in which the shaft pipe part 21 and the flange 22 were formed by the expansion pipe 5 are comprised. The expansion pipe mold 5 is constituted by a press fitting mold 52 for pushing the expansion pipe 51 and the cylindrical body 2 into the expansion pipe 51. The expansion core 51 forms the outer diameter equal to the inner diameters of the inner and outer jars 1 and 11 to be molded, and the press-in mold 52 holds a plurality of push rods that hold and push the flange 22 of the cylindrical body 2. It is divided into 521. Thus, holding the flange 22 of the cylindrical body 2 with the press-fitting mold 52 and pushing the cylindrical body 2 into the expansion core 51, the cylindrical body 2 is expanded. In this way, when the cylindrical body 2 is expanded, the press-molding die 52 which is divided into the plurality of push rods 521 is opened radially outward in accordance with the expansion of the cylindrical body 2.

이와같은 본 발명의 제조 방법에 의하면, 내외 병체(1, 11) 상부 입구부 직경이 작아지게 축관되었다 하더라도 종래에 있어서와 같이 그 두께가 얇아지지 아니하게 되어, 내외 병체(1, 11)의 상단 접합부(10)의 접합상태가 불량해질 염려가 없게된다. 뿐만 아니라 본 발명에 있어서의 축관 공정은 단 한번의 프레싱작업으로 종료될 수 있어 작업공정을 단순화하여 성력(省力)의 효과가 있으며 생산량을 증가시키는데 크게 기여할 수 있다. 뿐만 아니라 본 발명은 이에서 나아가 원통체(2)의 하부를 확관시킴에 있어서도, 원통체(2)에 플렌지(22)를 형성시킨 후 이를 확관심재(51)에 밀어 넣으므로서 확관 작업이 완료되게하여 보온병의 제조를 극히 용이하게 할 수 있다.According to the manufacturing method of the present invention, even if the diameter of the upper inlet and outer paths 1 and 11 is reduced, the thickness thereof does not become thin as in the prior art. There is no fear that the bonding state of the bonding portion 10 will be poor. In addition, the condensation process in the present invention can be terminated by a single pressing operation, thereby simplifying the working process, which has the effect of sexual power and can greatly contribute to increasing the yield. In addition, the present invention further expands the expansion of the cylindrical body 2 by forming the flange 22 in the cylindrical body 2 and then pushing it into the expansion corridor 51. The completion of the thermos can be made extremely easy.

Claims (2)

상부를 축관하고 하부를 확관하여 내외의 병체(1, 11)를 형성시키고 내외의 병체(1, 11) 상단을 용접하여 이중병체로 형성시키며 내외의 병체(1, 11) 하부에 바닥을 형성시켜서 보온병을 제조함에 있어서,By conduiting the upper part and expanding the lower part to form inner and outer pathogens (1, 11), welding the upper and lower paths of inner and outer pathogens (1, 11) to form a double pathogen, and forming the bottom of the inner and outer pathogens (1, 11) In manufacturing thermos, 병체(1, 11)의 상부 축관 공정은, 축관시키고자 하는 소기의 형상을 가지는 축관금형(3)에 원통체(2)를 넣고 원통체(2)의 외단을 압타하여 축관부(21)를 형성시키는 공정으로 구성시키고,In the upper shaft tube process of the bottle bodies 1 and 11, the cylindrical body 2 is put into the shaft tube mold 3 which has the desired shape to be condensed, and the outer end of the cylindrical body 2 is pressed in, and the shaft tube part 21 is closed. To the forming process, 병체(1, 11)의 하부 확관 공정은, 축관부(21)가 형성된 원통체(2)의 축관부(21) 반대쪽 테두리를 플렌지성형금형(4)으로 눌러 테두리에 플렌지(22)를 형성시키는 플렌지 형성 공정과, 축관부(21)가 형성된 원통체(2)를 확관금형(5)으로 확관시키는 공정으로 구성시켜서 된 것을 특징으로 하는 스테인레스 스틸제 보온병의 제조 방법.The lower expansion process of the bottles 1, 11 presses the edges opposite the shaft portion 21 of the cylindrical body 2 on which the shaft portions 21 are formed with the flange molding mold 4 to form the flanges 22 at the edges. A method for producing a stainless steel thermos, comprising a flange forming step and a step of expanding a cylindrical body (2) on which a shaft pipe portion (21) is formed by an expansion tube (5). 제1항에 있어서, 원통체(2)를 확관금형(5)으로 확관시키는 공정은 압입금형(52)으로 원통체(2)의 플렌지(22)를 잡고 원통체(2)를 확관심재(51)에 밀어 끼우므로서 원통체(2)가 확관되게하는 것이며, 확관금형(5)은 확관심재(51)와, 플렌지(22)를 잡고 원통체(2)를 확관심재(51)로 밀어 넣는 압입금형(52)으로 구성시켜서 된 것임을 특징으로 하는 스테인레스 스틸제 보온병의 제조 방법.The process of expanding the cylindrical body (2) to the expansion tube (5) according to claim 1, wherein the step of expanding the cylindrical body (2) with the press-molding die (52) holds the flange (22) of the cylindrical body (2) and expands the cylindrical body (2). The cylindrical body 2 is enlarged by being pushed into the cylinder 51, and the expansion mold 5 holds the cylindrical core 51 and the flange 22 to hold the cylindrical body 2 to the expanded core 51. A method of manufacturing a stainless steel thermos, characterized in that it consists of a press-fitting mold (52) to be pushed into the furnace.
KR1019970001806A 1997-01-22 1997-01-22 Method of manufacturign stainless steel bottle KR100226019B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755026B1 (en) * 2006-04-17 2007-09-06 주식회사 바셀테크 A manufacturing method of gas instrument body
CN114515764A (en) * 2022-02-16 2022-05-20 杭州浙达精益机电技术股份有限公司 Wall thickness and high temperature on-line measuring system of hot-rolled steel pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100755026B1 (en) * 2006-04-17 2007-09-06 주식회사 바셀테크 A manufacturing method of gas instrument body
CN114515764A (en) * 2022-02-16 2022-05-20 杭州浙达精益机电技术股份有限公司 Wall thickness and high temperature on-line measuring system of hot-rolled steel pipe

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