JPH0523749A - Manufacture of spiral plate and its manufacturing device - Google Patents
Manufacture of spiral plate and its manufacturing deviceInfo
- Publication number
- JPH0523749A JPH0523749A JP20244991A JP20244991A JPH0523749A JP H0523749 A JPH0523749 A JP H0523749A JP 20244991 A JP20244991 A JP 20244991A JP 20244991 A JP20244991 A JP 20244991A JP H0523749 A JPH0523749 A JP H0523749A
- Authority
- JP
- Japan
- Prior art keywords
- shaped material
- twist
- spiral
- corrugated
- strip
- 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.)
- Granted
Links
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、たとえばボイラや乾燥
機等の熱効率を高めるためのインナーフィン等に適用さ
れる螺旋状プレートの製造方法及び製造装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for manufacturing a spiral plate applied to inner fins and the like for improving the thermal efficiency of boilers and dryers.
【0002】[0002]
【従来の技術】従来のこの種の螺旋状プレートの製造
は、たとえばその一端をチャックし、他端を旋盤等によ
って回転力を加えてねじるようになっている。そして、
帯状素材を螺旋状にねじりやすくするために、帯状素材
を所定ピッチでもって波形に成形していた。2. Description of the Related Art A conventional spiral plate of this type is manufactured by, for example, chucking one end and twisting the other end by applying a rotational force by a lathe or the like. And
In order to make it easier to twist the strip-shaped material in a spiral shape, the strip-shaped material is formed into a corrugated shape at a predetermined pitch.
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上記し
た従来技術の場合には、回転力を加えて帯状素材をねじ
っているだけなので、成形できる長さが制約されてしま
い所望の長さの螺旋状プレートを得ることができなかっ
た。However, in the case of the above-mentioned prior art, since the strip-shaped material is only twisted by applying the rotational force, the length that can be formed is restricted, and the spiral-shaped material having a desired length is formed. No plate could be obtained.
【0004】また、その螺旋形状についても、所望の寸
法,形状に成形することが困難であった。Further, it is difficult to form the spiral shape into a desired size and shape.
【0005】本発明は上記した従来技術の課題を解決す
るためになされたもので、その目的とするところは、容
易に所望の長さ,形状寸法に成形することができる螺旋
状プレートの製造方法及び製造装置を提供することにあ
る。The present invention has been made in order to solve the above-mentioned problems of the prior art, and its object is a method of manufacturing a spiral plate which can be easily formed into a desired length and shape. And to provide a manufacturing apparatus.
【0006】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明の螺旋状プレートの製造方法にあっては、帯
状素材を、所定長さ毎に順次長手方向中心軸線の回りに
所定角度づつねじることによって連続的な螺旋形状に成
形することを特徴とする。In order to achieve the above object, in the method for manufacturing a spiral plate according to the present invention, a strip-shaped material is sequentially arranged at predetermined angles around a central axis of the longitudinal direction. It is characterized by forming into a continuous spiral shape by twisting one by one.
【0007】また、帯状素材を該帯状素材の長手方向に
沿って波形に成形した後に、波形成形部分を順次所定角
度づつねじることが好ましい。Further, it is preferable that after the strip-shaped material is formed into a corrugated shape along the longitudinal direction of the strip-shaped material, the corrugated portion is sequentially twisted by a predetermined angle.
【0008】帯状素材を、成形すべき螺旋形状を所定長
さに区切った場合の単位の螺旋曲面を有するねじり成形
用金型を用いて型成形することが効果的である。It is effective to mold the band-shaped material by using a twist molding die having a spiral curved surface as a unit when the spiral shape to be molded is divided into predetermined lengths.
【0009】本発明の螺旋状プレートの製造装置は、帯
状素材を所定長さ毎に所定角度づつねじるためのねじり
成形用金型と、このねじり成形用金型を加圧する加圧手
段と、 前記帯状素材を所定ピッチでもって間欠送りす
る搬送手段と、を具備し、搬送手段の間欠送りに対応し
て前記加圧手段を作動させて前記ねじり成形用金型によ
り、前記帯状素材を所定長さ毎に順次ねじることを特徴
とする。An apparatus for manufacturing a spiral plate according to the present invention comprises a twist forming die for twisting a strip-shaped material at a predetermined length and a predetermined angle, and a pressurizing means for pressurizing the twist forming die, Conveying means for intermittently feeding the belt-shaped material at a predetermined pitch, and operating the pressurizing means in response to the intermittent feeding of the conveying means to cause the belt-shaped material to have a predetermined length by the twist molding die. It is characterized by twisting each time.
【0010】また、ねじり成形用金型の前段に設けられ
帯状素材を該帯状素材の長手方向に沿って波形に成形す
るための前記波形成形用金型と、波形成形用金型を加圧
する加圧手段と、を具備し、前記搬送手段の間欠送りに
対応して前記加圧手段を作動させて前記波型成形用金型
およびねじり成形用金型により、前記帯状素材を所定長
さ毎に順次波形に成形すると共に波形成形部分を順次ね
じるようにすることが効果的である。Further, the corrugated molding die for forming the corrugated material provided in the preceding stage of the twist molding die for corrugating along the longitudinal direction of the corrugated material, and a pressing member for pressing the corrugated molding die. A pressure means, the pressure means is operated in response to intermittent feeding of the conveying means, and the band-shaped material is cut at a predetermined length by the corrugated molding die and the twist molding die. It is effective to sequentially form the corrugated portion and to sequentially twist the corrugated portion.
【0011】ねじり成形用金型は、成形すべき螺旋形状
を所定長さに区切った単位の螺旋曲面を有することが好
適である。It is preferable that the twist molding die has a spiral curved surface of a unit obtained by dividing a spiral shape to be molded into a predetermined length.
【0012】また、波形成形用金型とねじり成形用金型
は同一の加圧手段によって加圧されるもので、帯状素材
の搬送方向に順番に隣接して設けられていることが好ま
しい。Further, the corrugated molding die and the torsion molding die are pressed by the same pressing means, and it is preferable that they are provided adjacent to each other in the order in which the belt-shaped material is conveyed.
【0013】ねじり成形用金型は、帯状素材の送り方向
入口側の前段ねじり型と出口側の後段ねじり型との二分
割構成とし、後段ねじり型のねじり角度を前段ねじり型
のねじり角度より大きく設定し、帯状素材のねじり変形
度合いを段階的に大きくしておくことが効果的である。The twist forming die is divided into two parts, that is, a pre-stage twist type on the inlet side of the belt-shaped material in the feed direction and a post-stage twist type on the exit side, and the twist angle of the post-stage twist type is larger than that of the pre-stage twist type. It is effective to set and increase the degree of torsional deformation of the band-shaped material stepwise.
【0014】[0014]
【作用】上記螺旋状プレートの製造方法にあっては、帯
状素材が所定長さ毎に所定のねじり角度づつねじられて
連続的に螺旋形状に成形されるので、任意の長さに成形
することができる。In the above-described method for manufacturing the spiral plate, the strip-shaped material is twisted by a predetermined twist angle for each predetermined length and continuously formed into a spiral shape. You can
【0015】また、金型を用いて型成形するようにすれ
ば、ねじり成型用金型のねじり角度等を選択することに
より、正確な寸法、形状の螺旋状プレートを容易に製造
できる。Further, if the molding is carried out using a mold, a spiral plate having an accurate size and shape can be easily manufactured by selecting the twist angle of the mold for torsion molding.
【0016】本発明の螺旋状プレートの製造装置は、帯
状素材を搬送手段によって所定ピッチでもって搬送し、
波形成型用金型で波形に成形され、この波形成形部分が
ねじり成形用金型に移送され、ねじり成形用金型でもっ
て所定長さ毎に順次所定ねじり角度でねじり成形され
る。In the apparatus for manufacturing a spiral plate of the present invention, the belt-shaped material is conveyed by the conveying means at a predetermined pitch,
The corrugated mold is formed into a corrugated shape, and the corrugated portion is transferred to the twist molding die, and the twist molding die is used to form the corrugated portion at a predetermined twist angle for each predetermined length.
【0017】[0017]
【実施例】以下に本発明を図示の実施例に基づいて説明
する。図1は本発明の螺旋状プレートの製造方法を概念
的に示すもので、帯状素材Wを、所定長さ毎に順次長手
方向中心軸線Oの回りに所定角度づつねじることによっ
て、連続的な螺旋形状に成形するものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments. FIG. 1 conceptually shows a method for manufacturing a spiral plate of the present invention, in which a strip-shaped material W is successively twisted around a central axis O in the longitudinal direction by a predetermined angle for each predetermined length to form a continuous spiral. It is formed into a shape.
【0018】螺旋状プレートPは、図2(a) 及び(b) に
示すように、理想的には、螺旋状プレートPの長手方向
に沿った中心軸線Oに対して直交する方向に仮想線Iを
引き、この仮想線Iを中心軸線O回りに等速回転させな
がら中心軸線O方向に等速直線運動をさせた場合に、仮
想線Iが描く螺旋曲面として理解される。したがって、
所定長さに区切った場合に、どの領域も全く同一のねじ
れた形状であり完全に重ね合わせることができる。この
区切り長さは任意であり、長く区切っても短く区切って
も、区切られた領域の形状はどの領域も全く同一の形状
となる。もっとも、このように同一形状となるのは、理
想的な螺旋形状に限定されるものではなく、使用箇所等
に応じて種々の螺旋形状を選択することができる。As shown in FIGS. 2 (a) and 2 (b), the spiral plate P is ideally a virtual line in a direction orthogonal to the central axis O along the longitudinal direction of the spiral plate P. It is understood as a spiral curved surface drawn by the virtual line I when I is drawn and the virtual line I is rotated at a constant speed around the central axis O while being moved linearly at a constant speed in the central axis O direction. Therefore,
When divided into a predetermined length, all the regions have the same twisted shape and can be completely overlapped. This division length is arbitrary, and the shape of the divided areas is the same for all areas, whether long or short. However, the same shape is not limited to the ideal spiral shape, and various spiral shapes can be selected according to the place of use.
【0019】このように、螺旋状プレートPを所定長さ
に区切った場合に全く同一形状となる点に着目して、好
ましくはねじり成形用の金型1を用いて成形される。As described above, it is preferable that the spiral plate P is formed by using the mold 1 for twist forming, paying attention to the fact that the spiral plate P has exactly the same shape when it is divided into a predetermined length.
【0020】このねじり成形用金型1は、上型1Aと下
型1Bとから構成され、この上型1Aと下型1Bによっ
て上下から帯状素材Wを加圧して、帯状素材Wの所定長
さ分だけ帯状素材W送り方向に右あるいは左回転方向
(図中左回転)にねじれた形状に塑性変形させるもので
ある。The twist molding die 1 is composed of an upper die 1A and a lower die 1B. The upper and lower dies 1A and 1B press the strip-shaped material W from above and below to give a predetermined length of the strip-shaped material W. The material is plastically deformed into a twisted shape in the right or left rotation direction (left rotation in the drawing) in the feed direction by the amount.
【0021】この上,下型1A,1Bの帯状素材Wに当
接して加圧成形するための成形面1C,1Dは、成形す
べき所定長さの螺旋形状を単位の螺旋曲面P1とする
と、この単位の螺旋曲面P1の表および裏面に相当する
形状となっており、各成形面1C,1Dは互いに噛み合
うように形成されている。The molding surfaces 1C and 1D for contacting the strip-shaped material W of the upper and lower molds 1A and 1B for pressure molding have a spiral curved surface P1 having a spiral shape of a predetermined length to be molded as a unit. The spiral curved surface P1 of this unit has a shape corresponding to the front and back surfaces, and the molding surfaces 1C and 1D are formed so as to mesh with each other.
【0022】図4には、成形用金型1の下型1Bを図示
したものである。上型1Aについても全く同様であるの
で、下型1Bについての説明のみとし、上型1Aについ
ての説明は省略する。FIG. 4 shows the lower mold 1B of the molding die 1. Since the same applies to the upper mold 1A, only the lower mold 1B will be described, and the description of the upper mold 1A will be omitted.
【0023】図示するように、この下型1Bは、帯状素
材の送り方向(図中矢印で示す)手前側の前端縁1aが
水平に配置され、その成形面1Cは、送り方向に沿って
中心軸線Oの回りに所定角度づつ左回転方向にねじれた
螺旋曲面となっている。たとえば、前端縁1aと中心軸
線Oとの交点を原点X0として中心軸線O上に座標Xを
とり、後端縁1bと中心軸線0との交点までの距離をA
とし、この後端縁1bと水平基準面Hとのなすねじり角
度をαとすると、座標Xの位置の螺旋曲面上に中心軸線
Oに対して直交するように描いた直交線と水平基準面H
とのなす角度θは、X(α/A)で表現される。As shown in the figure, in the lower mold 1B, a front end edge 1a on the front side in the feeding direction (indicated by an arrow in the figure) of the band-shaped material is arranged horizontally, and its molding surface 1C is centered along the feeding direction. It is a spiral curved surface that is twisted in the counterclockwise direction by a predetermined angle around the axis O. For example, with the intersection of the front edge 1a and the central axis O as the origin X0, the coordinate X is taken on the central axis O, and the distance to the intersection of the rear edge 1b and the central axis 0 is A
And the twist angle formed by the rear edge 1b and the horizontal reference plane H is α, the orthogonal line drawn on the spiral curved surface at the position of the coordinate X so as to be orthogonal to the central axis O and the horizontal reference plane H.
The angle θ formed by and is expressed by X (α / A).
【0024】図3には本発明の螺旋状プレートの製造方
法の基本的な工程を示している。説明を簡単にするため
に、ワンショットでねじり成形用金型1でねじられるね
じり角度αを45度とする。FIG. 3 shows the basic steps of the method for manufacturing the spiral plate of the present invention. In order to simplify the explanation, it is assumed that the twist angle α twisted by the one-shot twist forming die 1 is 45 degrees.
【0025】まず、ねじり成形用金型1を型開きした状
態で、帯状素材Wを所定の送りピッチdだけ送って、型
開きした成形用金型1の上型1Aと下型1Bとの間に一
段目の成形領域W11を挿入する。この送りピッチdは
成形用金型1の送り方向の長さAと同一長さに設定され
る(図3(a) 参照)。First, in a state where the twist forming die 1 is opened, the band-shaped material W is fed at a predetermined feed pitch d to allow a gap between the upper die 1A and the lower die 1B of the opened die 1 to be formed. The molding region W11 of the first stage is inserted into. The feed pitch d is set to the same length as the length A of the molding die 1 in the feed direction (see FIG. 3 (a)).
【0026】次いで、上,下型1A,1Bをプレスある
いはハンマ等の加圧手段によって加圧する。すると、帯
状素材Wが上,下型1A,1Bの各成形面1C,1Dの
螺旋曲面に倣って所定角度αだけねじられる(図3(b)
参照)。Next, the upper and lower molds 1A and 1B are pressed by a pressing means such as a press or a hammer. Then, the strip-shaped material W is twisted by a predetermined angle α following the spiral curved surfaces of the molding surfaces 1C and 1D of the upper and lower molds 1A and 1B (Fig. 3 (b)).
reference).
【0027】型成形後、上,下型1A,1Bを型開き
し、帯状素材Wを所定ピッチdでもって送り、次段の2
段目の成形領域W12を上,下型1A,1Bの間に挿入
する(図3(c) ,(d) 参照)。After the molding, the upper and lower molds 1A and 1B are opened, and the strip-shaped material W is fed at a predetermined pitch d.
The molding region W12 of the step is inserted between the upper and lower molds 1A and 1B (see FIGS. 3 (c) and 3 (d)).
【0028】次に、上,下型1A,1Bを加圧して2段
目の成形領域W12を所定角度αだけねじる。すると、
1段目の成形領域W11の先端は水平基準面Hに対して
角度2α、すなわち90度旋回するとになる(図3(e)
参照)。Next, the upper and lower molds 1A and 1B are pressed to twist the second-stage molding region W12 by a predetermined angle α. Then,
The tip of the molding region W11 of the first stage turns at an angle 2α with respect to the horizontal reference plane H, that is, 90 degrees (FIG. 3 (e)).
reference).
【0029】次いで、上,下型1A,1Bを型開きし
て、帯状素材Wを所定ピッチdでもって送り、さらに次
段の3段目の成形領域W13を上,下型1A,1Bの間
に挿入する(図3(f),(g)参照)。Next, the upper and lower dies 1A and 1B are opened, the strip-shaped material W is fed at a predetermined pitch d, and the molding region W13 of the next stage is located between the upper and lower dies 1A and 1B. (See FIGS. 3 (f) and 3 (g)).
【0030】そして、上,下型1A,1Bを加圧して3
段目の成形領域W13を角度αだけねじる。すると、1
段目の成形領域W11の先端は水平基準面Hに対して角
度3α、すなわち135度だけ旋回し、2段目の成形領
域W12は角度2αだけ旋回することになる(図3(h)
参照)。Then, the upper and lower molds 1A and 1B are pressurized to 3
The forming region W13 of the step is twisted by an angle α. Then 1
The tip of the forming area W11 of the second stage turns by an angle 3α, that is, 135 degrees with respect to the horizontal reference plane H, and the forming area W12 of the second stage turns by an angle 2α (FIG. 3 (h)).
reference).
【0031】次いで、上,下型1A,1Bを型開きし
て、帯状素材Wを所定ピッチdでもって送り、次段の4
段目の成形領域W14を上,下型1A,1Bの間に挿入
する(図3(i) ,(j) 参照)。Next, the upper and lower molds 1A and 1B are opened, and the strip-shaped material W is fed at a predetermined pitch d, and the next 4
The molding region W14 of the step is inserted between the upper and lower molds 1A and 1B (see FIGS. 3 (i) and 3 (j)).
【0032】そして、上,下型1A,1Bを加圧して4
段目の成形領域W14を角度αだけねじる。この結果1
段目の成形領域W11の先端は角度4α、すなわち18
0度だけ旋回し、2段目の成形領域W12は角度3α
(135度)、3段目の成形領域W13は角度α(90
度)だけ旋回することになる。Then, the upper and lower molds 1A and 1B are pressurized to 4
The forming region W14 of the step is twisted by an angle α. This result 1
The tip of the molding region W11 of the step is angle 4α, that is, 18
It turns only 0 degrees and the second stage forming area W12 has an angle of 3α.
(135 degrees), the angle α (90
It will only turn).
【0033】以下、順次5段目,6段目の成形を行うこ
とによって、連続的に螺旋形状に成形されていくことに
なる。After that, by sequentially forming the fifth step and the sixth step, the spiral shape is continuously formed.
【0034】成形すべき螺旋状プレートPの長さは、帯
状素材Wの長さが許される限り無限に成形することがで
き、所望の任意の長さで切断すればよい。The length of the spiral plate P to be formed may be infinite as long as the length of the strip material W is allowed, and the spiral plate P may be cut to any desired length.
【0035】なお、帯状素材Wのねじり角度αや送りピ
ッチdは、任意の大きさを選択することができる。The twist angle α and the feed pitch d of the band-shaped material W can be selected arbitrarily.
【0036】すなわち、この螺旋状プレートPのねじり
度合いは螺旋状プレートPの単位長さ当たりのねじれ角
度で表現でき、ねじり成形用金型1の前端縁1a及び後
端縁1bと水平基準面Hとのなす角度αと、上型,下型
1A,1Bの帯状素材Wの長手方向に沿う長さ寸法Aを
パラメータにしてねじれ度合いを変化させることができ
る。たとえば、Aを一定にして角度αを大きくするとね
じれ度合いが大きくなって螺旋ピッチが小さくなり、逆
に、角度αを小さくすると単位長さ当たりのねじれ度合
いが小さくなり、螺旋状プレートPの螺旋ピッチが大き
くなる。したがって、ねじり成形用金型1を取り替える
だけで、容易に任意のピッチの螺旋状プレートPを得る
ことができる。また、帯状素材Wをねじる前に、図5に
示すように、従来と同じように予め長手方向に波形に成
形しておいて、この波形成形部分W1を順次所定角度α
づつねじることが加工上好ましい。波形は、矩形状,山
形状,円弧状,三角形状,台形状等種々の形状の波形状
を選択することができ、帯状素材Wの長手方向に所定ピ
ッチでもって連続的に設けられている。That is, the degree of twist of the spiral plate P can be expressed by the twist angle per unit length of the spiral plate P, and the front end edge 1a and the rear end edge 1b of the twist forming die 1 and the horizontal reference plane H are shown. The degree of twist can be changed with the angle α formed by and the length dimension A along the longitudinal direction of the strip-shaped material W of the upper and lower dies 1A and 1B as parameters. For example, when A is kept constant and the angle α is increased, the degree of twist becomes large and the spiral pitch becomes small. On the contrary, when the angle α is made small, the degree of twist per unit length becomes small and the spiral pitch of the spiral plate P becomes small. Grows larger. Therefore, it is possible to easily obtain the spiral plate P having an arbitrary pitch simply by replacing the torsion molding die 1. Further, as shown in FIG. 5, before twisting the strip-shaped material W, it is preliminarily formed into a corrugation in the longitudinal direction in the same manner as in the conventional case, and the corrugated portion W1 is sequentially formed at a predetermined angle α.
Twisting one by one is preferable in terms of processing. The corrugated shape can be selected from various shapes such as a rectangular shape, a mountain shape, an arc shape, a triangular shape, and a trapezoidal shape, and are continuously provided at a predetermined pitch in the longitudinal direction of the strip material W.
【0037】そして、この波形成形は、ねじり加工する
前に、帯状素材Wの全長に亙って予め成形しておいても
よいが、帯状素材Wを波形に成形しつつ同時に所定長さ
づつねじっていくことが製造工程上有利である。In this corrugation, the strip material W may be preformed over the entire length of the strip material W before it is twisted. However, the strip material W is formed into a corrugated shape and simultaneously twisted by a predetermined length. It is advantageous in terms of manufacturing process.
【0038】すなわち、波形成形も型成形とし、波形成
形用金型2をねじり成形用金型1の前段に配置しておい
て、帯状素材Wを所定長さ毎に波形成形して、波形成形
部分W1を次段のねじり成形用金型1でもって所定長さ
毎にねじるようにすれば、一つの製造ラインでもって帯
状素材Wを連続的に螺旋状に成形することができる。That is, the corrugation is also performed as the corrugation, the corrugation molding die 2 is arranged in front of the twist molding die 1, and the strip-shaped material W is corrugated at a predetermined length to form the corrugation. If the portion W1 is twisted by a predetermined length by the twisting mold 1 of the next stage, the strip-shaped material W can be continuously spirally formed by one production line.
【0039】図6は、本発明の螺旋状プレートの製造装
置の概念構成を示すもので、帯状素材Wを波形成形する
波形成形用金型2と、帯状素材Wを所定長さ毎に所定角
度づつねじるためのねじり成形用金型1と、帯状素材W
を所定ピッチdでもって搬送する搬送ローラ等の搬送手
段3と、波形成形用金型2とねじり成形用金型1を加圧
するためのプレスやハンマ等の加圧手段4と、ねじり成
形用金型1の後段に配置されて螺旋状に成形した部分を
任意の長さでもって切断するためのカッタ5と、を具備
している。FIG. 6 shows a conceptual configuration of a spiral plate manufacturing apparatus according to the present invention. A corrugated molding die 2 for corrugating the band-shaped material W and a predetermined angle for each predetermined length of the band-shaped material W. Twisting mold 1 for twisting one by one, and band-shaped material W
Conveying means 3 such as a conveying roller for conveying the sheet at a predetermined pitch d, pressurizing means 4 such as a press or hammer for pressurizing the corrugated molding die 2 and the torsion molding die 1, and the torsion molding die. The cutter 5 is provided at a subsequent stage of the mold 1 to cut a spirally formed portion with an arbitrary length.
【0040】この波形成形用金型2とねじり成形用金型
1は、図7及び図8に示すように、帯状素材Wを搬送方
向に沿って搬送方向手前側から順番に隣接して配置され
ており、同一の加圧手段4の上,下加圧プレート6,7
間に取付けられている。As shown in FIGS. 7 and 8, the corrugated molding die 2 and the torsion molding die 1 are arranged so that the strip-shaped material W is adjoined in order along the conveying direction from the front side in the conveying direction. And the same pressurizing means 4 upper and lower pressurizing plates 6, 7
Installed in between.
【0041】また、波形成形用金型2の手前には入口ガ
イド8が、ねじり成形用金型1の出口側には出口ガイド
9が、それぞれ設けられている。An inlet guide 8 is provided in front of the corrugated molding die 2 and an outlet guide 9 is provided on the outlet side of the twist molding die 1.
【0042】波形成形用金型2は上型2Aと下型2Bと
から構成され、その対向面には、加工するべき波形を有
する波形歯10,11が所定ピッチでもって形成されて
いる。この実施例では、波形歯10,11は断面三角形
状となっており、互いに噛み合うようにその位相をずら
してある。この波形歯10,11の断面形状は三角形状
に限られず、矩形、山形等の種々の形状を選択すること
ができる。The corrugated metal mold 2 is composed of an upper mold 2A and a lower mold 2B, and corrugated teeth 10 and 11 having corrugations to be machined are formed at a predetermined pitch on opposite surfaces thereof. In this embodiment, the corrugated teeth 10 and 11 have a triangular cross section, and their phases are shifted so as to mesh with each other. The cross-sectional shape of the corrugated teeth 10 and 11 is not limited to the triangular shape, and various shapes such as a rectangular shape and a mountain shape can be selected.
【0043】また、ねじり成形用金型1は、第1金型1
01と第2金型102の二段構成となっていて、帯状素
材を2段階に加圧成形するようになっている。第1,第
2金型101,102は帯状素材Wの送り方向に沿っ
て、その手前側から第1,第2金型101,102の順
に配設されている。The twist molding die 1 is the first die 1
01 and the second mold 102 have a two-stage configuration, and the band-shaped material is pressure-molded in two stages. The first and second molds 101 and 102 are arranged in this order from the front side of the first and second molds 101 and 102 along the feeding direction of the band-shaped material W.
【0044】第1,第2金型101,102は、いずれ
も基本的には図4に示した構成と同一の構成を有するも
ので、その成形面は帯状素材の送り方向に左回転方向に
ねじれる螺旋形状となっており、帯状素材の送り方向に
沿う長さAは等しく、帯状素材はこの長さAに等しい送
りピッチでもって間欠送りされる。Each of the first and second molds 101 and 102 basically has the same structure as that shown in FIG. 4, and its molding surface is in the left rotation direction in the feeding direction of the band-shaped material. It has a twisted spiral shape and has the same length A along the feed direction of the strip-shaped material, and the strip-shaped material is intermittently fed at a feed pitch equal to this length A.
【0045】この具体例では、帯状素材Wを水平基準面
Hに対して所定角度α1だけ傾斜させて送るようになっ
ており、上記した波形成形用金型2の成形面も所定角度
α1だけ傾けられ、第1金型の上型101Aと下型10
1Bの前端縁101aは、帯状素材Wの傾斜角度α1に
合わせて水平基準面Hに対してα1だけ右回転方向に傾
斜させてある。一方、第1金型101の後端縁101b
は水平基準面H上に配置され、第1金型101によって
帯状素材Wは角度α1だけねじられる。In this specific example, the band-shaped material W is fed while being inclined by a predetermined angle α1 with respect to the horizontal reference plane H, and the molding surface of the corrugated molding die 2 is also inclined by the predetermined angle α1. The upper mold 101A and the lower mold 10 of the first mold
The front end edge 101a of 1B is inclined in the right rotation direction by α1 with respect to the horizontal reference plane H in accordance with the inclination angle α1 of the strip-shaped material W. On the other hand, the rear edge 101b of the first die 101
Are arranged on the horizontal reference plane H, and the band-shaped material W is twisted by the angle α1 by the first mold 101.
【0046】また、第2金型102は、その上型102
Aと下型102Bの前端縁102aが、第1金型101
の後端縁101bと一致する水平基準面H上に配置さ
れ、後端縁102bが水平基準面Hに対して左回転方向
に角度α2だけ傾斜しており、帯状素材Wはこの第2金
型102によって角度α2だけねじられることになる。The second die 102 has an upper die 102.
A and the front edge 102a of the lower mold 102B are the first mold 101.
The rear end edge 102b is arranged on the horizontal reference plane H that coincides with the rear end edge 101b, and the rear end edge 102b is inclined with respect to the horizontal reference plane H in the counterclockwise direction by an angle α2. 102 will be twisted by an angle α2.
【0047】前段の第1金型101によるねじり角度α
1は後段の第2金型102によるねじり角度α2よりも
小さく、第1金型101によって角度α1だけねじられ
た後、第2金型102によって最終的に角度α2まで段
階的にねじり成形するようになっている。Torsional angle α by the first die 101 in the preceding stage
1 is smaller than the twisting angle α2 by the second mold 102 in the subsequent stage, and after being twisted by the angle α1 by the first mold 101, the second mold 102 finally performs the stepwise twisting up to the angle α2. It has become.
【0048】また、出口ガイド9は円筒形状で、その外
周が出口ガイド9内周にそって案内されるもので、帯状
素材Wの螺旋状成形部W2の先端を保持して、帯状素材
Wを入口ガイド8と出口ガイド9でもって、その両端を
支持した状態で加圧成形するようになっている。さら
に、好ましくはねじり成形した素材Wの先端を引っ張る
ことが効果的である。The outlet guide 9 has a cylindrical shape and its outer periphery is guided along the inner periphery of the outlet guide 9, and the tip of the spiral forming portion W2 of the strip-shaped material W is held to retain the strip-shaped material W. The inlet guide 8 and the outlet guide 9 are used for pressure molding while supporting both ends thereof. Furthermore, it is effective to pull the tip of the material W that is preferably twist-formed.
【0049】上記構成の螺旋状プレートの製造装置によ
れば、帯状素材Wをローラ等の搬送手段4によって所定
ピッチでもって間欠的に移送し、搬送手段4の間欠送り
に対応して加圧手段4が作動され、波形成形用金型2お
よびねじり成形用金型1により、帯状素材Wを所定長さ
毎に順次波形に成形すると共に、同時に波形成形部分W
1が順次第1金型101によって角度α1だけねじら
れ、角度α1にねじられた部分が第2金型によって角度
α2だけねじられて、帯状素材Wが連続的に螺旋状に成
形されていく。According to the apparatus for manufacturing the spiral plate having the above-described structure, the belt-shaped material W is intermittently transferred at a predetermined pitch by the conveying means 4 such as rollers, and the pressurizing means corresponding to the intermittent feeding of the conveying means 4. 4 is actuated, and the corrugated forming die 2 and the torsion forming die 1 successively form the belt-shaped material W into a corrugated shape for each predetermined length, and at the same time, the corrugated forming portion W
1 is sequentially twisted by the angle α1 by the first die 101, and the portion twisted at the angle α1 is twisted by the angle α2 by the second die, so that the strip-shaped material W is continuously spirally formed.
【0050】図9は、この第1金型101と第2金型1
02による2段階の成形工程を模式的に示している。成
形状態を分かりやすくするために、波形を省略し、型開
き時の第1,第2金型101,102の下型101B,
102Bと帯状素材Wとを離して記載してある。FIG. 9 shows the first die 101 and the second die 1.
2 schematically shows a two-step molding process according to No. 02. In order to make the molding state easy to understand, the waveform is omitted, and the lower mold 101B of the first and second molds 101, 102 at the time of mold opening,
102B and the strip-shaped material W are described separately.
【0051】まず、第1,第2金型101,102を型
開きした状態で、帯状素材Wを第1,第2金型101,
102の送り方向長さAと同一の送りピッチdだけ送っ
て、型開きした第1金型101の上型101Aと下型1
01Bとの間に一段目の成形領域W11を挿入する(図
9(a) 参照)。First, in a state where the first and second molds 101 and 102 are opened, the strip-shaped material W is set to the first and second molds 101 and 102.
The upper die 101A and the lower die 1 of the first die 101 are opened by feeding by the same feed pitch d as the feed direction length A of 102.
The molding area W11 of the first step is inserted between the first molding area W01 and 01B (see FIG. 9A).
【0052】次いで、上,下型1A,1Bをプレスある
いはハンマ等の加圧手段によって加圧する。すると、帯
状素材Wが上,下型101A,101Bによって所定角
度α1だけねじられる(図9(b) 参照)。Next, the upper and lower molds 1A and 1B are pressed by a pressing means such as a press or a hammer. Then, the band-shaped material W is twisted by the upper and lower molds 101A and 101B by a predetermined angle α1 (see FIG. 9B).
【0053】型成形後、第1,第2金型101,102
を型開きし、帯状素材Wを所定ピッチdでもって送り、
1段目で成形された一段粗成形部W11´を後段の第2
金型102の上,下型102A,102B間に挿入する
(図9(c) ,(d) 参照)。After molding, first and second molds 101 and 102 are formed.
Open the mold, and feed the band-shaped material W at a predetermined pitch d,
The first-stage rough forming portion W11 ′ formed in the first stage is connected to the second stage in the second stage.
The mold 102 is inserted between the upper and lower molds 102A and 102B (see FIGS. 9C and 9D).
【0054】次に、上,下加圧プレート6,7により第
1,第2金型101,102を加圧すると、一段粗成形
部W11´が第2金型によって角度α2だけねじられ、
2段目の成形領域W12が所定角度α1だけねじられ
る。すなわち、2段目の成形領域W12は角度α1だけ
ねじられてその先端は水平基準面Hに位置し、すでにα
1だけねじり成形されている2段粗成形部W12´は水
平基準面Hから角度α2だけねじられることになる(図
9(e) 参照)。Next, when the first and second molds 101 and 102 are pressed by the upper and lower pressing plates 6 and 7, the one-step rough forming section W11 'is twisted by the angle α2 by the second mold,
The second-stage forming region W12 is twisted by a predetermined angle α1. That is, the molding region W12 of the second stage is twisted by the angle α1 and its tip is located on the horizontal reference plane H, and the
The two-stage rough-formed portion W12 ', which has been twist-formed by 1, is twisted from the horizontal reference plane H by an angle α2 (see FIG. 9 (e)).
【0055】次いで、上,下加圧プレート6,7を離間
して第1,第2金型101,102を型開きし、帯状素
材Wを所定ピッチdでもって送り、さらに次段の3段目
の成形領域W13を第1金型101の上,下型101
A,101Bの間に挿入すると共に、α1だけねじり成
形された2段粗成形部W12´を第2金型102の上,
下型102A,102Bの間に挿入する(図9(f),
(g)参照)。Next, the upper and lower pressure plates 6 and 7 are separated from each other, the first and second molds 101 and 102 are opened, the strip-shaped material W is fed at a predetermined pitch d, and the next three stages. The eye forming region W13 is defined as the upper die 1 and the lower die 101
A two-stage rough forming part W12 ', which is inserted between A and 101B and is twist-formed by α1, is placed on the second mold 102,
Inserted between the lower molds 102A and 102B (Fig. 9 (f),
(See (g)).
【0056】そして、第1,第2金型101,102を
加圧して3段目の成形領域W13を角度α1だけねじる
と共に、前段の2段粗成形部W12´が角度α2だけね
じられる。したがって、1段目の成形領域W11の先端
は水平基準面Hに対して角度2α2、未成形の帯状素材
Wに対しては(α1+2α2)だけ旋回することにな
る。また、2段目の成形領域W12の先端は角度(α1
+α2)だけ旋回することになる(図9(h) 参照)。Then, the first and second molds 101 and 102 are pressed to twist the forming region W13 of the third stage by an angle α1, and the two-stage rough forming portion W12 'of the preceding stage is twisted by an angle α2. Therefore, the leading end of the first-stage forming region W11 is swung by the angle 2α2 with respect to the horizontal reference plane H and by (α1 + 2α2) with respect to the unformed band-shaped material W. In addition, the tip of the second-stage molding region W12 has an angle (α1
It turns only + α2) (see Fig. 9 (h)).
【0057】次に、第1,第2金型101,102を型
開きして、帯状素材Wが所定ピッチdだけ送られ(図9
(i),(j) 参照)、α1だけねじられた3段粗成形部W1
3´が第2金型102の上,下型102A,102Bの
間に挿入され、第4成形領域W14が第1金型101の
上,下型101A,101B間に挿入される。Next, the first and second molds 101 and 102 are opened, and the strip-shaped material W is fed by a predetermined pitch d (see FIG. 9).
(See (i) and (j)), 3 step rough forming part W1 twisted by α1
3'is inserted between the upper and lower molds 102A and 102B of the second mold 102, and the fourth molding region W14 is inserted between the upper and lower molds 101A and 101B of the first mold 101.
【0058】そして、第1,第2金型101,102を
型閉めして加圧すると、第2金型102によって3段粗
成形部W13´が角度α2だけねじられ、第1金型10
1によって4段成形領域W14が角度α1だけねじられ
る(図9(k)参照)。したがって、1段目の成形領域W
11の先端は水平基準面Hに対して角度3α2だけ、未
成形の帯状素材Wに対しては(α1+3α2)だけ旋回
することになる。When the first and second molds 101 and 102 are closed and pressed, the second mold 102 twists the three-stage rough molding portion W13 'by an angle α2, and the first mold 10 is pressed.
The four-step molding region W14 is twisted by the angle α1 by 1 (see FIG. 9 (k)). Therefore, the molding area W of the first stage
The tip of 11 is swung by an angle 3α2 with respect to the horizontal reference plane H and by (α1 + 3α2) with respect to the unformed band-shaped material W.
【0059】次に、第1,第2金型101,102を型
開きして(図9(l)参照)、以下順次5段目,6段目の
成形を行うことによって、連続的に螺旋形状に成形され
ていくことになる。Next, the first and second molds 101 and 102 are opened (see FIG. 9 (l)), and thereafter, the fifth and sixth stages are sequentially formed, whereby a spiral is continuously formed. It will be shaped into a shape.
【0060】このように、二段階に成形することによっ
て、螺旋状プレートの螺旋ピッチをより小さいものも成
形することができ、また、形状,寸法をより精密に加工
することができる。As described above, by forming in two steps, it is possible to form a spiral plate having a smaller spiral pitch, and it is possible to process the shape and size more precisely.
【0061】そして、図示しないカッタによって任意の
長さで切断して、所望の長さの螺旋状プレートを得るこ
とができる。Then, a spiral plate having a desired length can be obtained by cutting it to an arbitrary length with a cutter (not shown).
【0062】[0062]
【発明の効果】本発明は以上の構成および作用を有する
もので、帯状素材を所定長さ毎に所定角度毎にねじって
螺旋形状に成形するようにしたので、螺旋状プレートを
任意の長さに成形することができる。As described above, the present invention has the above-described structure and operation. Since the band-shaped material is twisted at a predetermined angle at a predetermined angle to form a spiral shape, the spiral plate can be formed into an arbitrary length. Can be molded into.
【0063】また、ねじり成形用金型を用いて単位の螺
旋曲面毎に成形するようにすれば、螺旋状プレートを正
確な寸法形状に成形することができる。Further, if the twisting mold is used to form each of the spiral curved surfaces of the unit, the spiral plate can be formed into an accurate dimensional shape.
【0064】さらに、帯状素材を予め波形に成形してお
いて、波形成形部分をねじり成形するようにすれば、容
易に螺旋形状に成形することができる。Further, if the band-shaped material is formed into a corrugated shape in advance and the corrugated portion is formed by twisting, it is possible to easily form the spiral shape.
【0065】また、波形成形とねじり成形を同時に成形
することで、製造工程を合理化することができ、生産能
率を高めることができる。Further, by simultaneously forming the corrugated molding and the torsional molding, the manufacturing process can be rationalized and the production efficiency can be improved.
【図1】図1は本発明の一実施例に係る螺旋状プレート
の製造方法の概念構成を示す図である。FIG. 1 is a diagram showing a conceptual configuration of a method for manufacturing a spiral plate according to an embodiment of the present invention.
【図2】図2は図1の製造方法により製造されるべき螺
旋状プレートを示すもので、同図(a) は概略斜視図、同
図(b) は正面図である。2A and 2B show a spiral plate to be manufactured by the manufacturing method of FIG. 1, FIG. 2A is a schematic perspective view, and FIG. 2B is a front view.
【図3】図3(a) 〜(l) は本発明の螺旋状プレートの製
造方法の基本的な工程を模式的に示す図である。3 (a) to 3 (l) are diagrams schematically showing the basic steps of the method for producing a spiral plate of the present invention.
【図4】図4は図1のねじり成形用金型を示し、同図
(a) は斜視図、同図(b) は右側面図、同図(c)は正面
図、同図(d) は左側面図である。FIG. 4 is a view showing the twist molding die of FIG.
(a) is a perspective view, (b) is a right side view, (c) is a front view, and (d) is a left side view.
【図5】図5は本発明の他の実施例に係る端螺旋状プレ
ートの製造方法の概念構成を示す図である。FIG. 5 is a diagram showing a conceptual configuration of a method of manufacturing an end spiral plate according to another embodiment of the present invention.
【図6】図6は本発明の螺旋状プレートの製造装置の構
成を模式的に示す図である。FIG. 6 is a diagram schematically showing a configuration of a spiral plate manufacturing apparatus of the present invention.
【図7】図4の本発明の螺旋状プレートの製造装置をよ
り具体化した主要部の構成を示す正面図である。FIG. 7 is a front view showing the configuration of a main part of the spiral plate manufacturing apparatus of the present invention shown in FIG.
【図8】図8は図7のねじり成形用金型と波形成形用金
型の分解斜視図である。FIG. 8 is an exploded perspective view of the twist molding die and the corrugation molding die of FIG. 7.
【図9】図9(a) 乃至(l) は図7のねじり成形用金型を
用いた場合の二段成形工程を模式的に示す図である。9 (a) to 9 (l) are diagrams schematically showing a two-step molding process when the twist molding die of FIG. 7 is used.
1 ねじり成形用金型
1A 上型
1B 下型
1C,1D 成形面
101 第1金型
102 第2金型
2 波形成形用金型
2A 上型
2B 下型
3 搬送手段
4 加圧手段
5 カッタ
8 入口ガイド
9 出口ガイド
10,11 波形歯
1a,1b 入口側,出口側端縁
W 帯状素材
W1 波形成形部分
W2 螺旋状成形部分
O 長手方向中心軸線
P 螺旋状プレート
H 水平基準線
P1 単位の螺旋曲面
α ねじれ角度
W11,W12,W13,W14 第1段,第2段,第
3段,第4段成形領域
d 送りピッチ1 Twisting Mold 1A Upper Mold 1B Lower Mold 1C, 1D Molding Surface 101 First Mold 102 Second Mold 2 Waveform Mold 2A Upper Mold 2B Lower Mold 3 Conveying Means 4 Pressurizing Means 5 Cutter 8 Inlet Guide 9 Outlet guide 10, 11 Corrugated teeth 1a, 1b Inlet side, outlet side edge W Strip material W1 Corrugated forming part W2 Spiral forming part O Longitudinal center axis P Spiral plate H Horizontal reference line P1 Spiral curved surface α Twist angle W11, W12, W13, W14 1st stage, 2nd stage, 3rd stage, 4th stage Forming area d Feed pitch
Claims (8)
中心軸線の回りに所定角度づつねじることによって連続
的な螺旋形状に成形することを特徴とする螺旋状プレー
トの製造方法。1. A method for manufacturing a spiral plate, wherein a strip-shaped material is formed into a continuous spiral shape by sequentially twisting a predetermined length around a central axis of the longitudinal direction by a predetermined angle.
て波形に成形した後に、波形成形部分を順次所定角度づ
つねじる請求項1記載の螺旋状プレートの製造方法。2. The method for producing a spiral plate according to claim 1, wherein after the band-shaped material is formed into a corrugated shape along the longitudinal direction of the band-shaped material, the corrugated portion is sequentially twisted at a predetermined angle.
長さに区切った場合の単位の螺旋曲面を有するねじり成
形用金型を用いて型成形する請求項1または2に記載の
螺旋状プレートの製造方法。3. The spiral shape according to claim 1 or 2, wherein the band-shaped material is molded by using a twist molding die having a spiral curved surface as a unit when the spiral shape to be molded is divided into predetermined lengths. Plate manufacturing method.
じるためのねじり成形用金型と、該ねじり成形用金型を
加圧する加圧手段と、前記帯状素材を所定ピッチでもっ
て間欠送りする搬送手段と、を具備し、該搬送手段の間
欠送りに対応して前記加圧手段を作動させて前記ねじり
成形用金型により、前記帯状素材を所定長さ毎に順次ね
じることを特徴とする螺旋状プレートの製造装置。4. A twist forming die for twisting a strip-shaped material at a predetermined angle for each predetermined length, a pressurizing means for pressurizing the twist forming die, and an intermittent feed of the strip-shaped material at a predetermined pitch. And a conveyor means for operating the pressurizing means in response to the intermittent feeding of the conveyor means, and sequentially twisting the strip-shaped material by a predetermined length by the twist molding die. Device for manufacturing spiral plate.
帯状素材を該帯状素材の長手方向に沿って波形に成形す
るための前記波形成形用金型と、該波形成形用金型を加
圧する加圧手段と、を具備し、前記搬送手段の間欠送り
に対応して前記加圧手段を作動させて前記波型成形用金
型およびねじり成形用金型により、前記帯状素材を所定
長さ毎に順次波形に成形すると共に波形成形部分を順次
ねじることを特徴とする請求項4記載の螺旋状プレート
の製造装置。5. The corrugated molding die for forming a corrugated strip-shaped material along the longitudinal direction of the strip-shaped material provided in the preceding stage of the twist molding die, and the corrugated molding die. A pressurizing means for pressing, the pressurizing means is actuated in response to intermittent feeding of the conveying means, and the corrugated forming die and the twist forming die allow the strip-shaped material to have a predetermined length. 5. The apparatus for manufacturing a spiral plate according to claim 4, wherein the corrugated portion is sequentially formed into a corrugated shape and the corrugated portion is sequentially twisted.
を所定長さに区切った単位の螺旋曲面を有する請求項4
又は5記載の螺旋状プレートの製造装置。6. The twist forming die has a spiral curved surface of a unit obtained by dividing a spiral shape to be formed into a predetermined length.
Or the manufacturing apparatus of the spiral plate of 5 above.
一の加圧手段によって加圧されるもので、帯状素材の搬
送方向に順番に隣接して設けられている請求項5または
6に記載の螺旋状プレートの製造装置。7. The corrugated molding die and the torsion molding die are pressed by the same pressurizing means, and are provided adjacent to each other in the order in which the belt-shaped material is conveyed. An apparatus for manufacturing the spiral plate according to item 1.
向入口側の前段ねじり型と出口側の後段ねじり型との二
分割構成とし、後段ねじり型のねじり角度を前段ねじり
型のねじり角度より大きく設定し、帯状素材のねじり変
形度合いを段階的に大きくしてなることを特徴とする請
求項4,5,6または7記載の螺旋状プレートの製造装
置。8. The twist forming die has a two-part structure of a pre-stage twist type on the inlet side and a post-stage twist type on the exit side in the feeding direction of the band-shaped material, and the twist angle of the post-stage twist type is the twist angle of the pre-stage twist type. 8. The apparatus for manufacturing a spiral plate according to claim 4, 5, 6 or 7, wherein the setting is made larger to increase the degree of torsional deformation of the strip-shaped material stepwise.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3202449A JPH084843B2 (en) | 1991-07-17 | 1991-07-17 | Method and device for manufacturing spiral plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3202449A JPH084843B2 (en) | 1991-07-17 | 1991-07-17 | Method and device for manufacturing spiral plate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0523749A true JPH0523749A (en) | 1993-02-02 |
JPH084843B2 JPH084843B2 (en) | 1996-01-24 |
Family
ID=16457712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3202449A Expired - Fee Related JPH084843B2 (en) | 1991-07-17 | 1991-07-17 | Method and device for manufacturing spiral plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH084843B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105033003A (en) * | 2015-08-25 | 2015-11-11 | 昆山维开安电子科技有限公司 | Torsion forming structure in mold |
CN106807822A (en) * | 2016-12-30 | 2017-06-09 | 深圳世能科泰能源技术股份有限公司 | Major diameter flight stretching-machine |
WO2019063198A1 (en) * | 2017-09-26 | 2019-04-04 | Wafios Aktiengesellschaft | Method and bending machine for producing bent parts from flat material |
KR102036573B1 (en) * | 2018-05-16 | 2019-10-25 | 조선대학교산학협력단 | Manufacturing apparatus for multi-spiral pile and manufacturing method using that |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62197223A (en) * | 1986-02-21 | 1987-08-31 | Hitachi Ltd | Twist working method for long-sized band-shaped article |
-
1991
- 1991-07-17 JP JP3202449A patent/JPH084843B2/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62197223A (en) * | 1986-02-21 | 1987-08-31 | Hitachi Ltd | Twist working method for long-sized band-shaped article |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105033003A (en) * | 2015-08-25 | 2015-11-11 | 昆山维开安电子科技有限公司 | Torsion forming structure in mold |
CN105033003B (en) * | 2015-08-25 | 2017-03-29 | 昆山维开安电子科技有限公司 | Twisting formation structure in mould |
CN106807822A (en) * | 2016-12-30 | 2017-06-09 | 深圳世能科泰能源技术股份有限公司 | Major diameter flight stretching-machine |
CN106807822B (en) * | 2016-12-30 | 2020-07-03 | 深圳世能科泰能源技术股份有限公司 | Large-diameter screw sheet drawing machine |
WO2019063198A1 (en) * | 2017-09-26 | 2019-04-04 | Wafios Aktiengesellschaft | Method and bending machine for producing bent parts from flat material |
KR102036573B1 (en) * | 2018-05-16 | 2019-10-25 | 조선대학교산학협력단 | Manufacturing apparatus for multi-spiral pile and manufacturing method using that |
Also Published As
Publication number | Publication date |
---|---|
JPH084843B2 (en) | 1996-01-24 |
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