JP2002200399A - Drum manufacturing method for spin-drying tub of washing machine - Google Patents
Drum manufacturing method for spin-drying tub of washing machineInfo
- Publication number
- JP2002200399A JP2002200399A JP2000401736A JP2000401736A JP2002200399A JP 2002200399 A JP2002200399 A JP 2002200399A JP 2000401736 A JP2000401736 A JP 2000401736A JP 2000401736 A JP2000401736 A JP 2000401736A JP 2002200399 A JP2002200399 A JP 2002200399A
- Authority
- JP
- Japan
- Prior art keywords
- washing machine
- manufacturing
- cylinder
- punching
- tub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は洗濯機の脱水槽の胴
体製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a body of a dehydration tub of a washing machine.
【０００２】[0002]
【従来の技術】例えば一槽式の全自動洗濯機は、図１５
に示すように底枠８の上に設置した外箱１内に防振装置
２を介して外槽３を搖動自在に吊支し、該外槽３内に、
底部に回転翼４を設けた洗濯兼脱水槽５を回転自在に配
設するものであり、外槽３の底部には駆動機構としてモ
ータ６やクラッチなどの減速機構などの機構部７が取り
付けてあり、また、外箱１の上部には外槽３の上方位置
にトップカバー９を取り付けて、該トップカバー９に蓋
１０を開閉自在に取り付けてある。図中１１は給水ケー
スを示す。2. Description of the Related Art For example, a one-tub type fully automatic washing machine is shown in FIG.
The outer tank 3 is swingably suspended via an anti-vibration device 2 in an outer box 1 installed on a bottom frame 8 as shown in FIG.
A washing and spin-drying tub 5 provided with a rotary blade 4 at the bottom is rotatably disposed. At the bottom of the outer tub 3, a mechanism 7 such as a motor 6 and a reduction mechanism such as a clutch is attached as a driving mechanism. In addition, a top cover 9 is attached to an upper portion of the outer box 1 above the outer tub 3, and a lid 10 is attached to the top cover 9 so as to be freely opened and closed. In the figure, reference numeral 11 denotes a water supply case.
【０００３】前記洗濯兼脱水槽５は図１４に示すように
胴体５ａとなる側板をステンレスなどの金属で円筒形に
形成し、該胴体５ａの上部内側に中空のリング状のバラ
ンサー１２をネジ止めなどにより取り付け、また、胴体
５ａの下部には合成樹脂製で同じくリング形状の脱水槽
底部５ｂがネジ止めなどにより取り付けてある。図中１
３は洗濯兼脱水槽５の胴体５ａに穿設した脱水孔を示
す。As shown in FIG. 14, the washing and dewatering tub 5 has a side plate serving as a body 5a formed of a metal such as stainless steel in a cylindrical shape, and a hollow ring-shaped balancer 12 is screwed inside the body 5a. The bottom of the body 5a is provided with a bottom portion 5b of a synthetic resin-made ring-shaped dehydration tub by screwing or the like. 1 in the figure
Reference numeral 3 denotes a dewatering hole formed in the body 5a of the washing and dewatering tub 5.
【０００４】かかる胴体５ａは、従来、図２０にも示す
ように、ステンレスなどの金属製の板に絞り加工による
突出部３１や、抜き加工による取付孔１５、１６を施
し、さらに、上縁と下縁でバランサー１２や脱水槽底部
５ｂとの結合部分に巻縁１７を形成し、両端部には該両
端部を結合するためのハゼ３２，３３を形成したもので
ある。Conventionally, as shown in FIG. 20, such a body 5a has a metal plate made of stainless steel or the like provided with a protruding portion 31 formed by drawing and mounting holes 15 and 16 formed by punching. A winding edge 17 is formed at the lower edge at a portion connected to the balancer 12 and the dewatering tank bottom 5b, and at both ends, goby 32, 33 for connecting the both ends is formed.
【０００５】このような加工を施した円筒形の胴体５ａ
を製造する従来の方法を次に図１６〜図２４について説
明する。まず、図１６に示すように第１工程は、絞り加
工としてステンレスなどの金属製の細長形状の平板１４
に専用の金型を使用して洗浄効果を高めるための山形の
突出部３１を平板１４のほぼ全体にわたってプレス成形
する。[0005] The cylindrical body 5a thus processed
Next, a conventional method for manufacturing the semiconductor device will be described with reference to FIGS. First, as shown in FIG. 16, in the first step, an elongated flat plate 14 made of metal such as stainless steel is drawn as a drawing process.
Then, a protruding portion 31 of a mountain shape for enhancing the cleaning effect is press-formed over substantially the entire flat plate 14 by using a special mold.
【０００６】第２工程は抜き加工として前記絞り加工の
終了した平板１４に、別の専用金型を使用して該平板の
上部と下部とにそれぞれ取付孔１５，１６や脱水孔１３
などの孔を長さ方向に複数個をプレス成形する。In the second step, as a punching process, mounting holes 15 and 16 and dehydration holes 13 are formed in the upper and lower portions of the flat plate 14 which has been subjected to the drawing process, using separate molds.
Press forming a plurality of holes in the length direction.
【０００７】次の第３工程では、図１７、図１８に示す
ように、絞り加工と抜き加工の終了した平板１４の上下
部分に長さ方向に沿う直角なフランジをプレス成形で形
成するとともに下方部分に溝状のビード１８を形成し、
第４工程としてこのフランジを外側にカーリング加工さ
せて巻縁１７を形成する。[0007] In the next third step, as shown in FIGS. 17 and 18, a right-angled flange along the length direction is formed on the upper and lower portions of the flat plate 14 after the drawing and punching by press molding, and the lower flange is formed. A groove-shaped bead 18 is formed in a portion,
As a fourth step, the flange is formed by curling the flange outward.
【０００８】そして、第５工程として、図１９に示すよ
うに第４工程まで加工した平板１４の両端を外側と内側
にそれぞれ鋭角に折り曲げ加工してハゼ３２，３３を形
成する。In a fifth step, as shown in FIG. 19, both ends of the flat plate 14 processed up to the fourth step are bent outward and inward at acute angles, respectively, to form the goby 32, 33.
【０００９】以上のような５つの工程を経た後、図２
０、図２１、図２２に示すように第６工程としてかかる
平板１４をロール成形して円筒状に丸め、第７工程でハ
ゼ３２，３３を重ね合わせて相互に掛止し、次に第８工
程として図２３、図２４に示すように、相互に掛止した
ハゼ３２，３３を潰してハゼカシメする。これにより、
平板状であったステンレスなどの金属製板が円筒状の胴
体５ａに成形される。こうして円筒に形成された胴体５
ａの上部と下部に取付孔１５，１６を利用してネジでバ
ランサー１２と脱水槽底部５ｂとを結合する。After passing through the above five steps, FIG.
As shown in FIGS. 0, 21 and 22, the flat plate 14 is roll-formed and rolled into a cylindrical shape as a sixth step, and in the seventh step the gouges 32 and 33 are overlapped and hooked to each other. As a step, as shown in FIGS. 23 and 24, the hooks 32, 33 hooked to each other are crushed and crimped. This allows
A flat metal plate such as stainless steel is formed into a cylindrical body 5a. The body 5 thus formed into a cylinder
The balancer 12 and the bottom 5b of the dehydration tub are connected to each other by screws using the mounting holes 15 and 16 at the upper and lower portions of a.
【００１０】[0010]
【発明が解決しようとする課題】平板状であったステン
レスなどの金属製板を円筒状にロール成形するまでの段
階で、５つの工程があり、しかもこれらの５工程はそれ
ぞれ独立した別個の専用金型を使用して加工成形するも
のである。このため、断続した工程数が多くなり、製品
の精度にバラツキが生じやすくなる。There are five steps before a flat plate-shaped metal plate such as stainless steel is roll-formed into a cylindrical shape, and these five steps are independent and dedicated to each other. It is formed by processing using a mold. For this reason, the number of intermittent processes increases, and the accuracy of products tends to vary.
【００１１】また、絞り加工、抜き加工、フランジ成
形、カーリングによる巻縁の成形、ハゼ加工の全てを平
板に施して、かかる５工程の加工が終了した平板を円筒
状にロール成形するため、円筒度、真円度や同軸度を確
保しにくく、仕上がり精度にバラツキが生じることがあ
る。[0011] Further, all of the drawing, punching, flange forming, winding edge forming by curling, and goby processing are applied to a flat plate, and the flat plate that has been processed in the above five steps is roll-formed into a cylindrical shape. Degree, roundness and coaxiality are difficult to secure, and the finish accuracy may vary.
【００１２】本発明の目的は前記従来例の不都合を解消
し、金属製の平板を使用して絞り加工や抜き加工を施
し、上下に巻縁を形成した胴体を製造する場合に、１つ
の金型で異なる種類のプレス成形が行えるようにして、
プレス工程で使用する金型の数を削減し、また、ロール
成形を行う時期を従来とは異なるようにして、製品の円
筒度、真円度や同軸度を確保して精度向上を図れるよう
にし、材質の特性を損なわない洗濯機の脱水槽の胴体製
造方法を提供することにある。An object of the present invention is to solve the above-mentioned disadvantages of the prior art, and to form a metal body having a winding edge formed on the upper and lower sides by performing drawing or punching using a metal flat plate. So that different types of press molding can be performed with the mold,
Reduce the number of molds used in the pressing process, and make the roll forming time different from the conventional one, so that the product can be improved in accuracy by securing the cylindricity, roundness and coaxiality of the product. It is another object of the present invention to provide a method of manufacturing a body of a dehydrating tub of a washing machine, which does not impair the properties of the material.
【００１３】[0013]
【課題を解決するための手段】本発明は前記目的を達成
するため、第１に、絞り加工と孔を抜き加工して脱水孔
などを形成した周壁を多角筒体に形成し、上下周縁に巻
縁を形成した洗濯機の脱水槽の胴体の製造方法であっ
て、前記胴体となる平板に絞り加工と抜き加工とを連続
する工程で施した後、ロール成形により円筒に形成して
端部を接合して円筒体とし、この円筒体の上下周縁にフ
ランジを形成した後、このフランジを丸めて巻縁を形成
し、その後、円筒体の周壁全体を多角筒体に形成して胴
体とする。In order to achieve the above object, the present invention firstly forms a polygonal cylindrical body having a dewatering hole or the like formed by drawing and punching a hole in a polygonal cylindrical body, and forming the peripheral wall on the upper and lower peripheral edges. A method of manufacturing a body of a dehydration tub of a washing machine having a winding edge, wherein a flat plate serving as the body is subjected to a continuous process of drawing and punching, and then formed into a cylinder by roll forming to form an end portion. Are joined to form a cylindrical body, and after forming a flange on the upper and lower peripheral edges of the cylindrical body, the flange is rounded to form a winding edge, and then the entire peripheral wall of the cylindrical body is formed into a polygonal cylindrical body to form a body. .
【００１４】これにより、絞り加工と抜き加工をそのま
ま連続して行うから、断続する工程数を削減でき、製品
の円筒度、真円度や同軸度などの仕上がり精度が向上し
製品のバラツキが少なくなる。また、ロール成形により
円筒体に形成してから、フランジおよびカーリングによ
る巻縁を形成するから、さらに仕上がり精度が向上す
る。Thus, since the drawing process and the punching process are performed continuously, the number of intermittent steps can be reduced, and the finished accuracy such as cylindricity, roundness and coaxiality of the product is improved, and the variation of the product is reduced. Become. In addition, since the winding edge is formed by the flange and the curling after the cylindrical body is formed by the roll forming, the finishing accuracy is further improved.
【００１５】第２に、前記絞り加工と抜き加工は、１つ
の金型による順送加工によるから、絞り加工と抜き加工
を行うためにそれぞれ別個の専用の金型を用意する必要
がなく、１つの金型で必要なプレス成形を行うことがで
き、作業能率が向上するだけでなく、製品の仕上がり精
度が向上する。Second, since the drawing and the punching are performed by progressive feeding with one die, it is not necessary to prepare separate and exclusive dies for the drawing and the punching. The required press molding can be performed with one mold, and not only the work efficiency is improved, but also the finishing accuracy of the product is improved.
【００１６】第３に、前記端部の接合は、端部を突き合
わせて溶接することにより、従来のハゼ折りによる結合
に比較して接合強度が増し、また、接合箇所で厚みが増
すことがないから、その後の工程でのフランジ形成が容
易にできる。Third, in joining the ends, the ends are butted and welded, so that the joining strength is increased as compared with the conventional joint by goby folding, and the thickness is not increased at the joining portion. Therefore, the flange can be easily formed in the subsequent steps.
【００１７】第４に、多角筒体の形成は、円筒体の展開
長が多角筒体の形成前と変わらないように円筒体の周壁
部の面部分を外側から押し込み、面部分と面部分との境
界部分を内側から押し出すことにより、円筒体をステン
レスなどの金属で成形する場合に、円筒体を部分的に伸
ばしたり、縮ませたりすることがなくなり、鏡面仕上げ
が仕様が可能となり、製品の色が白色化して光沢度が落
ちることを防止できる。さらにステンレスなどの金属に
抗菌材を塗布する場合などに抗菌材の性質変化の防止に
も役立つ。Fourth, the polygonal cylinder is formed by pushing the surface of the peripheral wall of the cylinder from the outside so that the developed length of the cylinder does not change from that before the polygonal cylinder is formed. By extruding the boundary of the cylinder from the inside, when the cylinder is formed of metal such as stainless steel, the cylinder is not partially stretched or shrunk, and the mirror finish can be specified, and the product It is possible to prevent the color from whitening and the glossiness from dropping. Further, it is useful for preventing the property change of the antibacterial material when the antibacterial material is applied to a metal such as stainless steel.
【００１８】[0018]
【発明の実施の形態】以下、図面について本発明の実施
の形態を詳細に説明する。図１は本発明の洗濯機の脱水
槽の胴体製造方法の実施形態を示す第１工程であるプレ
ス工程の正面図、図２は同上第２工程であるロール成形
の斜視図、図３は同上第３工程である溶接工程の斜視図
で、洗濯機の全体構成は図１５について既に説明した通
りであり、また、洗濯兼脱水槽５の構造も図１４につい
て既に説明した通りであるから、ここでの詳細な説明は
省略する。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view of a pressing step, which is a first step, showing an embodiment of a method of manufacturing a body of a dehydrating tub of a washing machine according to the present invention. FIG. 2 is a perspective view of a second step, roll forming, and FIG. FIG. 15 is a perspective view of a welding step, which is a third step, in which the entire configuration of the washing machine is as already described with reference to FIG. 15, and the structure of the washing and dewatering tub 5 is also as already described with reference to FIG. A detailed description of the above will be omitted.
【００１９】本実施形態でも洗濯兼脱水槽５は胴体５ａ
となる側板をステンレスなどの金属で円筒形に形成し、
該胴体５ａの上部内側に中空のリング状のバランサー１
２をネジ止めなどにより取り付け、また、胴体５ａの下
部には合成樹脂製で同じくリング形状の脱水槽底部５ｂ
をネジ止めなどにより取り付けるものであり、この胴体
５ａの製造方法を図１〜図１３について説明する。Also in this embodiment, the washing and dewatering tub 5 has a body 5a.
The side plate that is to be formed into a cylindrical shape with a metal such as stainless steel,
A hollow ring-shaped balancer 1 is provided inside the upper part of the body 5a.
2 is attached by a screw or the like, and the lower part of the body 5a is made of a synthetic resin and also has a ring-shaped dewatering tank bottom 5b.
The method for manufacturing the body 5a will be described with reference to FIGS.
【００２０】まず、図１に示すように第１工程であるプ
レス工程として、ステンレスなどの金属製の細長形状の
平板１４に、１つのアルミニウム金型を使用し、同一金
型でプレス成形できる必要形状の全てを形成する。すな
わち、本実施形態では、必要な絞り加工の一部と脱水孔
１３、取付孔１５，１６、後述のフランジ出し工程でＦ
ｉｇ溶接接合部に割れが生じることを防ぐための切欠き
２５、後述の溶接の際のパイロット孔１９などの抜き加
工とを同一の金型による連続加工で行う。First, as shown in FIG. 1, in a pressing step, which is a first step, it is necessary to use a single aluminum mold on an elongated flat plate 14 made of metal such as stainless steel and press-mold with the same mold. Form all of the shapes. That is, in the present embodiment, a part of the necessary drawing and the dehydration holes 13, the mounting holes 15, 16 and the F
The notch 25 for preventing the occurrence of cracks in the ig welding joint, and the punching process of the pilot hole 19 and the like at the time of welding, which will be described later, are performed by continuous processing using the same die.
【００２１】次に図２に示すように第２工程であるロー
ル成形工程として、絞り加工と抜き加工の終了した平板
１４を丸めて円筒のクセを付け、次いで、図３に示す第
３工程である溶接工程として、円筒に丸めた平板の端部
を突き合わせてＴｉｇ溶接により接合する。Next, as shown in FIG. 2, as a roll forming step, which is the second step, the flat plate 14 which has been drawn and punched is rounded to give a cylindrical habit, and then the third step shown in FIG. As a certain welding process, ends of flat plates rounded into a cylinder are joined to each other and joined by Tig welding.
【００２２】このとき、端部近傍に予め穿設してあるパ
イロット孔１９を案内としてセンターをだしながら接合
するので、円筒度が得られる。また、突き合わせ溶接で
接合するから、接合強度が大きいたけでなく、接合部２
１の厚みが大きくなることもない。At this time, since the joint is carried out while setting the center using the pilot hole 19 formed in advance near the end as a guide, cylindricity can be obtained. Also, since the joint is made by butt welding, not only the joining strength is high but also the joint 2
1 does not increase in thickness.
【００２３】次に図４〜図７に示す第４工程であるフラ
ンジ出し工程として、第３工程で形成した円筒体の上下
縁を外側に押し広げて伸ばし、フランジ２０を形成す
る。これにより、円筒度が矯正される。また、切欠きに
応力を逃がすことにより、フランジ２０を形成する際の
材料の伸びによる溶接部の割れ防止がはかれる。Next, as a flange forming step, which is a fourth step shown in FIGS. 4 to 7, the upper and lower edges of the cylindrical body formed in the third step are pushed outward and stretched to form the flange 20. Thereby, the cylindricity is corrected. In addition, by releasing the stress into the notch, it is possible to prevent a weld from cracking due to elongation of the material when forming the flange 20.
【００２４】さらに図８〜図１０に示す第５工程である
カーリング工程として、前記フランジ２０を外側に巻い
て巻縁１７を形成する。これにより、さらに真円度が向
上すると同時に、外方に突出していたフランジ２０が巻
かれることで、胴体５ａから外方に突出する部分をなく
して、外槽３内に配設する洗濯兼脱水槽５のコンパクト
化を図ることができる。Further, as a curling step which is a fifth step shown in FIGS. 8 to 10, the flange 20 is wound outward to form a winding edge 17. As a result, the roundness is further improved, and at the same time, the flange 20 that has protruded outward is wound, so that the portion that protrudes outward from the body 5a is eliminated, and the washing and removal provided in the outer tub 3 is performed. The water tank 5 can be made compact.
【００２５】次に図１１〜図１３に示す第６工程である
ビード成形工程として、前記工程までにおいて形成され
た円筒体に対して、外側から内側に向けて押し込むよう
にして多面体例えば１８面体の角筒体に形成する。この
場合、１８の面部２２は外側から内側に押し込むように
して各面を平面に形成し、各面と面の間の境界部分であ
る脱水孔１３の形成されている面部２３の部分は、内側
から外側に押すようにする。Next, as a bead forming step, which is the sixth step shown in FIGS. 11 to 13, the cylindrical body formed in the above steps is pushed inward from the outside to the inside so that a polyhedral body such as an octahedral body is pressed. It is formed in a rectangular cylinder. In this case, the surface 22 of 18 is pressed inward from the outside to form each surface into a flat surface, and the portion of the surface 23 where the dehydration hole 13 which is a boundary portion between each surface is formed is inward. And push outward.
【００２６】これにより、円筒体を展開してもとの平板
に戻したときに、全体の展開長に変化がないように成形
でき、全体として伸びたり、縮んだりする部分が生じな
いように成形できる。その結果、ステンレスの伸び縮み
によって発生する白色化の発生を防ぐことができ、光沢
度が落ちない。Thus, when the cylindrical body is unfolded and returned to the original flat plate, it can be formed so that there is no change in the entire unfolded length, and formed so that there is no part that expands or contracts as a whole. it can. As a result, the occurrence of whitening caused by the expansion and contraction of the stainless steel can be prevented, and the gloss does not decrease.
【００２７】前記１８面体の角筒体の部分は、円筒の全
高にわたって形成するものではなく、円筒の上部と下部
はバランサー１２、脱水槽底部５ｂとの接合部となるた
め、円筒形状に形成しておく。そこで、角筒体の部分と
上下の円筒体の部分との境界位置に、さらに、周方向の
溝状であるビード１８を成形する。かかる面部２２，２
３の成形やビード１８の成形をカーリング工程の後で行
うことにより、円筒の剛性度を向上できる。The octahedral rectangular tube is not formed over the entire height of the cylinder. The upper and lower portions of the cylinder are joined to the balancer 12 and the dewatering tank bottom 5b. Keep it. Therefore, a bead 18 having a circumferential groove shape is further formed at a boundary position between the rectangular cylindrical body portion and the upper and lower cylindrical body portions. Such surface portions 22, 2
By performing the molding of No. 3 and the molding of the bead 18 after the curling step, the rigidity of the cylinder can be improved.
【００２８】以上のようにして成形した円筒状の胴体５
ａは、円筒度、真円度、同軸度が向上し精度がアップ
し、製品のバラツキが少なくなり仕上がり精度が向上
し、かつ、光沢度も低下しないものになる。そして、図
１４に示すようにこの胴体５ａの上部の円筒状の部分に
取付孔１５を利用してネジ２４でバランサー１２を結合
し、また、下部の円筒状の部分に取付孔１６を利用して
ネジ２４で脱水槽底部５ｂを結合して、洗濯兼脱水槽５
となる。The cylindrical body 5 formed as described above
In the case of a, the cylindricity, roundness, and coaxiality are improved and the accuracy is improved, the variation in the product is reduced, the finishing accuracy is improved, and the gloss is not reduced. Then, as shown in FIG. 14, the balancer 12 is connected to the upper cylindrical portion of the body 5a using the mounting hole 15 using the screw 24 and the mounting hole 16 is used to the lower cylindrical portion. The bottom 5b of the dewatering tub is connected with the screw 24,
Becomes
【００２９】[0029]
【発明の効果】以上述べたように本発明の洗濯機の脱水
槽の胴体製造方法は、第１に、絞り加工と孔を抜き加工
して脱水孔などを形成した周壁を多角筒体に形成し、上
下周縁に巻縁を形成した洗濯機の脱水槽の胴体の製造方
法であって、前記胴体となる平板に絞り加工と抜き加工
とを連続する工程で施した後、ロール成形により円筒に
形成して端部を接合して円筒体とし、この円筒体の上下
周縁にフランジを形成した後、このフランジを丸めて巻
縁を形成し、その後、円筒体の周壁全体を多角筒体に形
成して胴体とする。As described above, the method of manufacturing the body of a dehydrating tub of a washing machine according to the present invention firstly forms a peripheral wall having a dewatering hole formed by drawing and punching a hole into a polygonal cylindrical body. A method of manufacturing a body of a dehydration tub of a washing machine in which winding edges are formed at upper and lower peripheral edges, wherein a flat plate serving as the body is subjected to a continuous process of drawing and punching, and then roll-formed into a cylinder. After forming and joining the ends to a cylindrical body, forming a flange on the upper and lower peripheral edges of the cylindrical body, rounding the flange to form a winding edge, and then forming the entire peripheral wall of the cylindrical body into a polygonal cylindrical body To the body.
【００３０】これにより、絞り加工と抜き加工をそのま
ま連続して行うから、断続する工程数を削減でき、製品
の円筒度、真円度や同軸度などの仕上がり精度が向上し
製品のバラツキが少なくなる。また、ロール成形により
円筒体に形成してから、フランジおよびカーリングによ
る巻縁を形成するから、さらに仕上がり精度が向上す
る。Thus, since the drawing process and the punching process are performed continuously, the number of intermittent processes can be reduced, the finishing accuracy such as cylindricity, roundness and coaxiality of the product is improved, and the variation of the product is reduced. Become. In addition, since the winding edge is formed by the flange and the curling after the cylindrical body is formed by the roll forming, the finishing accuracy is further improved.
【００３１】第２に、前記絞り加工と抜き加工は、１つ
の金型による連続加工によるから、絞り加工と抜き加工
を行うためにそれぞれ別個の専用の金型を用意する必要
がなく、１つの金型で必要なプレス成形を行うことがで
き、作業能率が向上するだけでなく、製品の仕上がり精
度が向上する。Secondly, since the drawing and the punching are performed by continuous processing using a single die, it is not necessary to prepare separate dedicated dies to perform the drawing and the punching. The required press molding can be performed with the mold, and not only the working efficiency is improved, but also the finishing accuracy of the product is improved.
【００３２】第３に、前記端部の接合は、端部を突き合
わせて溶接することにより、従来のハゼ折りによる結合
に比較して接合強度が増し、また、接合箇所で厚みが増
すことがないから、その後の工程でのフランジ形成が容
易にできる。Third, in joining the ends, the ends are butted and welded, so that the joining strength is increased as compared with the conventional joint by goby folding, and the thickness is not increased at the joining portion. Therefore, the flange can be easily formed in the subsequent steps.
【００３３】第４に、多角筒体の形成は、円筒体の展開
長が多角筒体の形成前と変わらないように円筒体の周壁
部の面部分を外側から押し込み、面部分と面部分との境
界部分を内側から押し出すことにより、円筒体をステン
レスなどの金属で成形する場合に、円筒体を部分的に伸
ばしたり、縮ませたりすることがなくなり、製品の色が
白色化して光沢度が落ちることを防止できる。Fourth, the polygonal cylinder is formed by pushing the surface of the peripheral wall of the cylinder from the outside so that the developed length of the cylinder does not change from before the polygonal cylinder is formed. By extruding the boundary from the inside from the inside, when the cylinder is formed of metal such as stainless steel, the cylinder is not partially stretched or shrunk, and the color of the product becomes white and gloss Fall can be prevented.
【図１】本発明の洗濯機の脱水槽の胴体製造方法の実施
の形態を示す第１工程の正面図である。FIG. 1 is a front view of a first step showing an embodiment of a method of manufacturing a body of a dehydrating tub of a washing machine of the present invention.
【図２】本発明の洗濯機の脱水槽の胴体製造方法の実施
形態を示す第２工程の斜視図である。FIG. 2 is a perspective view of a second step showing the embodiment of the method of manufacturing a body of a dehydrating tub of a washing machine of the present invention.
【図３】本発明の洗濯機の脱水槽の胴体製造方法の実施
形態を示す第３工程の斜視図である。FIG. 3 is a perspective view of a third step showing the embodiment of the method for manufacturing a body of a dehydrating tub of a washing machine of the present invention.
【図４】本発明の洗濯機の脱水槽の胴体製造方法の実施
形態を示す第４工程の斜視図である。FIG. 4 is a perspective view of a fourth step showing the embodiment of the method for manufacturing a body of a dehydrating tub of a washing machine of the present invention.
【図５】本発明の洗濯機の脱水槽の胴体製造方法の実施
形態を示す第４工程の正面図である。FIG. 5 is a front view of a fourth step showing the embodiment of the method for manufacturing a body of a spin-drying tub of a washing machine of the present invention.
【図６】本発明の洗濯機の脱水槽の胴体製造方法の実施
形態を示す第４工程の要部の縦断正面図である。FIG. 6 is a vertical sectional front view of a main part of a fourth step showing an embodiment of a method of manufacturing a body of a dehydrating tub of a washing machine of the present invention.
【図７】本発明の洗濯機の脱水槽の胴体製造方法の実施
形態を示す第４工程の平面図である。FIG. 7 is a plan view of a fourth step showing the embodiment of the method of manufacturing a trunk of a dehydrating tub of a washing machine of the present invention.
【図８】本発明の洗濯機の脱水槽の胴体製造方法の実施
形態を示す第５工程の正面図である。FIG. 8 is a front view of a fifth step showing the embodiment of the method for manufacturing a body of a spin-drying tub of a washing machine of the present invention.
【図９】本発明の洗濯機の脱水槽の胴体製造方法の実施
形態を示す第５工程の要部の縦断正面図である。FIG. 9 is a vertical sectional front view of a main part of a fifth step showing an embodiment of a method of manufacturing a body of a dehydrating tub of a washing machine of the present invention.
【図１０】本発明の洗濯機の脱水槽の胴体製造方法の実
施形態を示す第５工程の平面図である。FIG. 10 is a plan view of a fifth step showing the embodiment of the method of manufacturing a trunk of a dehydrating tub of a washing machine of the present invention.
【図１１】本発明の洗濯機の脱水槽の胴体製造方法の実
施形態を示す第６工程の一部切欠いた正面図である。FIG. 11 is a partially cutaway front view showing a sixth step of the embodiment of the method for manufacturing a body of a dehydration tub of a washing machine of the present invention.
【図１２】本発明の洗濯機の脱水槽の胴体製造方法の実
施形態を示す第６工程の要部の縦断正面図である。FIG. 12 is a vertical sectional front view of a main part of a sixth step showing the embodiment of the method of manufacturing a body of a dehydrating tub of a washing machine of the present invention.
【図１３】本発明の洗濯機の脱水槽の胴体製造方法の実
施形態を示す第６工程の平面図である。FIG. 13 is a plan view of a sixth step illustrating the embodiment of the method for manufacturing a trunk of a dehydrating tub of a washing machine of the present invention.
【図１４】洗濯兼脱水槽の縦断側面図である。FIG. 14 is a vertical sectional side view of a washing and dewatering tub.
【図１５】洗濯機の縦断側面図である。FIG. 15 is a vertical sectional side view of the washing machine.
【図１６】従来の洗濯機の脱水槽の胴体製造方法の第１
工程〜第５工程を示す正面図である。FIG. 16 shows a first example of a method of manufacturing a body of a dehydration tub of a conventional washing machine.
It is a front view showing a process-the 5th process.
【図１７】従来の洗濯機の脱水槽の胴体製造方法の第１
工程〜第５工程を示す側面図である。FIG. 17 is a diagram illustrating a first method of manufacturing a body of a dehydration tub of a conventional washing machine.
It is a side view which shows a process-the 5th process.
【図１８】従来の洗濯機の脱水槽の胴体製造方法の第１
工程〜第５工程を示す要部の側面図である。FIG. 18 shows a first example of a method of manufacturing a body of a dehydration tub of a conventional washing machine.
It is a side view of the principal part showing a process-the 5th process.
【図１９】従来の洗濯機の脱水槽の胴体製造方法の第１
工程〜第５工程を示す要部の平面図である。FIG. 19 is a first view illustrating a method of manufacturing a body of a dehydration tub of a conventional washing machine.
It is a top view of an important section showing a process-a 5th process.
【図２０】従来の洗濯機の脱水槽の胴体製造方法の第６
工程を示す斜視図である。FIG. 20 is a sixth view illustrating the conventional method of manufacturing the body of the spin-drying tub of the washing machine.
It is a perspective view which shows a process.
【図２１】従来の洗濯機の脱水槽の胴体製造方法の第
６、第７工程を示す平面図である。FIG. 21 is a plan view showing sixth and seventh steps of a conventional method of manufacturing a body of a dehydration tub of a washing machine.
【図２２】従来の洗濯機の脱水槽の胴体製造方法の第
６、第７工程を示す要部の平面図である。FIG. 22 is a plan view of a main part showing sixth and seventh steps of a method for manufacturing a body of a dehydrating tub of a conventional washing machine.
【図２３】従来の洗濯機の脱水槽の胴体製造方法の第８
工程を示す平面図である。FIG. 23 is an eighth view illustrating a method of manufacturing a body of a dehydrating tub of a conventional washing machine.
It is a top view showing a process.
【図２４】従来の洗濯機の脱水槽の胴体製造方法の第８
工程を示す要部の平面図である。FIG. 24 is an eighth view illustrating a method of manufacturing a body of a dehydration tub of a conventional washing machine.
It is a top view of an important section showing a process.
１…外箱 ２…防振装置 ３…
…外槽 ４…回転翼 ５…洗濯兼脱水槽 ６…
モータ ５ａ…胴体 ５ｂ…脱水槽底部 ７…機構部 ８…底枠 ９…
トップカバー １０…蓋 １１…給水ケース １２…バランサー １３…脱水孔 １４
…平板 １５…取付孔 １６…取付孔 １７…巻縁 １８…ビード １９
…パイロット孔 ２０…フランジ ２１…接合部 ２
２，２３…面部 ２４…ネジ ３１…突出部 ３
２，３３…ハゼ ２５…切欠き1: outer box 2: anti-vibration device 3:
… Outer tub 4… Rotary wing 5… Washing and dewatering tub 6…
Motor 5a ... Body 5b ... Dewatering tank bottom 7 ... Mechanism 8 ... Bottom frame 9 ...
Top cover 10 Lid 11 Water supply case 12 Balancer 13 Dehydration hole 14
... flat plate 15 ... mounting hole 16 ... mounting hole 17 ... winding edge 18 ... bead 19
... Pilot hole 20 ... Flange 21 ... Joint 2
2, 23 ... face part 24 ... screw 31 ... protruding part 3
2,33 ... Goby 25 ... Notch
───────────────────────────────────────────────────── フロントページの続き (72)発明者 澤登 克治 千葉県船橋市山手一丁目１番１号 日本建 鐵株式会社内 Ｆターム(参考） 3B155 AA15 BB04 BB05 BB19 DC11 GC01 GC09 MA02 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Katsuharu Sawato 1-1-1 Yamate, Funabashi-shi, Chiba F-term in Nippon Kentei Co., Ltd. (Reference) 3B155 AA15 BB04 BB05 BB19 DC11 GC01 GC09 MA02
Claims (4)
どを形成した周壁を多角筒体に形成し、上下周縁に巻縁
を形成した洗濯機の脱水槽の胴体の製造方法であって、
前記胴体となる平板に絞り加工と抜き加工とを連続する
工程で施した後、ロール成形により円筒に形成して端部
を接合して円筒体とし、この円筒体の上下周縁にフラン
ジを形成した後、このフランジを丸めて巻縁を形成し、
その後、円筒体の周壁全体を多角筒体に形成して胴体と
することを特徴とする洗濯機の脱水槽の胴体製造方法。1. A method for manufacturing a body of a dehydration tub of a washing machine, wherein a peripheral wall having a dewatering hole formed by drawing and punching is formed in a polygonal cylindrical body, and winding edges are formed on upper and lower peripheral edges. ,
After performing drawing and punching in a continuous process on the flat plate serving as the body, the body was formed into a cylinder by roll forming, the ends were joined to form a cylinder, and a flange was formed on the upper and lower peripheral edges of the cylinder. Later, this flange is rolled to form a winding edge,
Thereafter, the whole peripheral wall of the cylindrical body is formed into a polygonal cylindrical body to form a body, and the method for manufacturing a body of a dehydration tub of a washing machine is provided.
による順送加工によることを特徴とする請求項１記載の
洗濯機の脱水槽の胴体製造方法。2. The method according to claim 1, wherein the drawing and the punching are performed by progressive feeding using a single die.
溶接することを特徴とする請求項１記載の洗濯機の脱水
槽の胴体製造方法。3. The method for manufacturing a body of a dehydration tub of a washing machine according to claim 1, wherein the joining of the ends is performed by welding the ends.
角筒体の形成前と変わらないように円筒体の周壁部の面
部分を外側から押し込み、面部分と面部分との境界部分
を内側から押し出すことを特徴とする請求項１記載の洗
濯機の脱水槽の胴体製造方法。4. The polygonal cylinder is formed by pushing the surface of the peripheral wall of the cylinder from the outside so that the developed length of the cylinder does not change from that before the polygonal cylinder is formed. 2. The method according to claim 1, wherein the portion is extruded from the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000401736A JP2002200399A (en) | 2000-12-28 | 2000-12-28 | Drum manufacturing method for spin-drying tub of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000401736A JP2002200399A (en) | 2000-12-28 | 2000-12-28 | Drum manufacturing method for spin-drying tub of washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002200399A true JP2002200399A (en) | 2002-07-16 |
Family
ID=18866127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000401736A Pending JP2002200399A (en) | 2000-12-28 | 2000-12-28 | Drum manufacturing method for spin-drying tub of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002200399A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100657465B1 (en) | 2004-05-15 | 2006-12-13 | 엘지전자 주식회사 | Drum manufacturing method of washing machine |
| KR100686061B1 (en) | 2006-03-16 | 2007-02-22 | 엘지전자 주식회사 | Drum of drum washing machine |
| KR101367112B1 (en) | 2007-06-07 | 2014-02-26 | 삼성전자주식회사 | Rotating tub body and drum type washing machine having the same |
| KR101391734B1 (en) | 2013-08-27 | 2014-05-07 | 삼성전자주식회사 | Rotating tub and drum type washing machine having the same |
| US10738410B2 (en) | 2018-08-03 | 2020-08-11 | Haier Us Appliance Solutions, Inc. | Rotating component of a laundry appliance with a helical seam |
-
2000
- 2000-12-28 JP JP2000401736A patent/JP2002200399A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100657465B1 (en) | 2004-05-15 | 2006-12-13 | 엘지전자 주식회사 | Drum manufacturing method of washing machine |
| US7506425B2 (en) * | 2004-05-15 | 2009-03-24 | Lg Electronics Inc. | Method for manufacturing a drum of a washing machine |
| KR100686061B1 (en) | 2006-03-16 | 2007-02-22 | 엘지전자 주식회사 | Drum of drum washing machine |
| KR101367112B1 (en) | 2007-06-07 | 2014-02-26 | 삼성전자주식회사 | Rotating tub body and drum type washing machine having the same |
| KR101391734B1 (en) | 2013-08-27 | 2014-05-07 | 삼성전자주식회사 | Rotating tub and drum type washing machine having the same |
| US10738410B2 (en) | 2018-08-03 | 2020-08-11 | Haier Us Appliance Solutions, Inc. | Rotating component of a laundry appliance with a helical seam |
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