JP2563036B2 - Bending type - Google Patents
Bending typeInfo
- Publication number
- JP2563036B2 JP2563036B2 JP4143758A JP14375892A JP2563036B2 JP 2563036 B2 JP2563036 B2 JP 2563036B2 JP 4143758 A JP4143758 A JP 4143758A JP 14375892 A JP14375892 A JP 14375892A JP 2563036 B2 JP2563036 B2 JP 2563036B2
- Authority
- JP
- Japan
- Prior art keywords
- punch
- cutting edge
- die
- effective
- inclined surface
- 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.)
- Expired - Lifetime
Links
Description
【０００１】[0001]
【産業上の利用分野】この発明はプレス曲げに使用する
曲げ型、特にＬ字曲げやＵ字曲げ等におけるスプリング
バックの防止に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bending die used for press bending, and more particularly to prevention of springback in L-shaped bending and U-shaped bending.
【０００２】[0002]
【従来の技術】金属板を90度の角度でＬ字曲げした場
合、スプリングバックにより90度で曲げたつもりの製品
が例えば95度で曲がってしまう。このためヤゲン曲げに
おいては90度のＶ字形のみぞを有する下型に対して上型
を曲げる材料にもよるが88度ぐらいに加工し、金属板を
90度より小さな角度に曲げてスプリングバックによる影
響を防止している。2. Description of the Related Art When a metal plate is bent in an L shape at an angle of 90 degrees, a product intended to be bent at 90 degrees is bent by spring back, for example, at 95 degrees. For this reason, in bevel bending, depending on the material that bends the upper die with respect to the lower die that has a V-shaped groove of 90 degrees, it is processed to about 88 degrees and the metal plate
It is bent at an angle smaller than 90 degrees to prevent the effect of springback.
【０００３】また、ポンチとダイを有する曲げ型を使用
して金属板をＬ字曲げする場合には、金属板を90度より
小さな角度に曲げることができないため、例えば、図５
に示すようにダイ２の肩に曲げる金属板３の板厚の１／
10程度突出した幅１ｍｍ程度の小さな縁５１を設け、こ
のダイ２の中にポンチ１により金属板３を押し込んで、
金属板３の曲げ部に強い圧縮力を加えて打ち込み部を形
成し、スプリングバックの影響を小さくしたり、ポンチ
側に種々の工夫をこらしたりしている。When a metal plate is bent into an L shape by using a bending die having a punch and a die, the metal plate cannot be bent at an angle smaller than 90 degrees.
1 / of the thickness of the metal plate 3 bent on the shoulder of the die 2 as shown in
A small edge 51 with a width of about 1 mm protruding about 10 is provided, and the metal plate 3 is pushed into the die 2 by the punch 1.
A strong compressive force is applied to the bent portion of the metal plate 3 to form a driving portion to reduce the influence of springback and various punches are made on the punch side.
【０００４】[0004]
【発明が解決しようとする課題】上記のようにダイ２の
肩に突出した縁５１を設けた場合にはスプリングバック
の影響を小さくすることはできるが、多量の金属板を曲
げると特に縁５１の摩耗等が激しく、曲げ型の強度を維
持することが困難でった。When the protruding edge 51 is provided on the shoulder of the die 2 as described above, the influence of the spring back can be reduced, but when a large amount of metal plate is bent, the edge 51 is particularly formed. It was difficult to maintain the strength of the bending mold due to severe abrasion.
【０００５】また、ポンチ側に種々の工夫をこらして
も、金属板をＬ字曲げに加工する場合、90度以下の小さ
な曲げ角度に曲げることは困難であるため、スプリング
バックに関しては決定的な対策はできながった。Further, even if various measures are taken on the punch side, it is difficult to bend the metal plate into a small bending angle of 90 degrees or less when processing the metal plate into an L-shaped bend. I couldn't take any measures.
【０００６】この発明はかかる短所を解消するためにな
されたものであり、90度以下の小さな曲げ角度で金属板
を曲げることによりスプリングバックの影響を極力小さ
くすることができる曲げ型を得ることを目的とするもの
である。The present invention has been made in order to solve the above disadvantages, and it is possible to obtain a bending die capable of minimizing the influence of springback by bending a metal plate at a small bending angle of 90 degrees or less. It is intended.
【０００７】[0007]
【課題を解決するための手段】この発明に係る曲げ型
は、ポンチ（１）とポンチホルダ（１４）とポンチプレ
ート（１２）とストリッパプレート（１６）及びダイ
（２）とを有し、ポンチ（１）は上端押え部と下端刃先
部に水平な面を有し、被加工物と接触する有効刃先側面
（４）と相対する側面（８）は上端押え部と下端刃先部
の水平な面に対して垂直な面を有し、上端押え部には加
工物側にのみ突出した抜止めつば（５）を有し、有効刃
先側面（４）は加工物の曲げ角度βに応じて定められる
９０度以下の傾斜角αで中心側に傾斜した傾斜面からな
り、有効刃先側面（４）と抜止めつば（５）間の側面
（７）は有効刃先側面（４）の勾配と逆の勾配を有する
傾斜面からなり、有効刃先側面（４）と相対する側面
（８）の先端部には有効刃先側面（４）と平行な傾斜面
（９）を有し、上端押え部の水平な面の有効刃先側面
（４）の傾斜面の延長線との交点（１０）と抜止めつば
５の先端部の間には有効刃先側面４の傾斜面の勾配と同
じ勾配で下方向に傾斜した傾斜面５ａで形成された逃げ
部を有し、交点（１０）はポンチ（１）の刃先をダイ
（２）のダイ穴（１１）に押し込んだときにポンチ
（１）を回動する支点となり、ポンチホルダ（１４）は
下面がポンチ（１）の上端押え部に係合し、ポンチプレ
ート（１２）はポンチ（１）の抜止めつば（５）を回動
自在に保持する段付きの取付穴（１３）を有し、ポンチ
ホルダ（１４）の下部に取り付けられ、ストリッパプレ
ート（１６）はポンチ（１）の刃先部を案内するガイド
穴（１７）を有し、スプリング（１５）を介してポンチ
プレート（１２）の下部に配置され、ダイ（２）のダイ
穴（１１）はポンチ（１）の有効刃先側面（４）と平行
な傾斜面を有することを特徴とする。A bending die according to the present invention comprises a punch (1) , a punch holder (14) and a punch pre-press.
Sheet (12) and stripper plate (16) and die
(2) and the punch (1) has an upper end pressing portion and a lower end cutting edge.
Side of the effective cutting edge that has a horizontal surface on the part that contacts the work piece
The side surface (8) facing (4) is the upper end pressing portion and the lower end cutting edge portion.
Has a surface vertical to the horizontal surface of the
Effective blade with a retaining collar (5) protruding only on the work side
The front side surface (4) is determined according to the bending angle β of the workpiece.
Do not use an inclined surface that is inclined toward the center with an inclination angle α of 90 degrees or less.
The side between the effective blade edge side (4) and the retaining collar (5)
(7) has a gradient opposite to that of the effective cutting edge side surface (4)
Side that consists of an inclined surface and faces the effective blade edge side (4)
An inclined surface parallel to the effective cutting edge side surface (4) at the tip of (8)
(9) having an effective cutting edge side surface of a horizontal surface of the upper end pressing portion
The intersection (10) with the extension of the inclined surface of (4) and the retaining collar
Between the tip of 5 is the same as the slope of the inclined surface of the effective cutting edge side surface 4.
Relief formed by inclined surface 5a inclined downward with the same gradient
Part, and the intersection (10) dies the cutting edge of the punch (1)
Punch when pushed into the die hole (11) in (2)
It becomes a fulcrum for rotating (1), and the punch holder (14)
The lower surface engages with the upper end holding part of the punch (1),
The pivot (12) rotates the retaining collar (5) of the punch (1).
It has a stepped mounting hole (13) that holds it freely,
It is attached to the bottom of the holder (14) and
The guide (16) is a guide for guiding the cutting edge of the punch (1).
Punch with hole (17) through spring (15)
The die of the die (2), which is placed under the plate (12)
The hole (11) is parallel to the effective edge surface (4) of the punch (1)
It is characterized by having an inclined surface .
【０００８】[0008]
【作用】この発明においては、刃先側面に９０度以下の
角度の傾斜面を有するポンチを、傾斜面で案内しながら
回動させてダイの上記角度と同じ角度の勾配を有するダ
イ穴に押し込んで金属板を９０度以下の角度で曲げ加工
する。このポンチを押し込むときに、上端押え部の有効
刃先側面の傾斜面の延長線との交点を支点としながらポ
ンチを回動する。 According to the present invention, the punch having the inclined surface with an angle of 90 degrees or less on the side surface of the blade is rotated while being guided by the inclined surface and pushed into the die hole having the same angle as the above angle of the die. The metal plate is bent at an angle of 90 degrees or less. When pushing this punch in, the upper end holding part is effective.
While using the intersection of the edge of the cutting edge and the extension of the inclined surface as the fulcrum,
Rotate the punch.
【０００９】また、ポンチを押し込んだときに有効刃先
側面と抜止めつばとの間にある逆の勾配の傾斜面でポン
チの押し込み量を調整する。Further, when the punch is pushed in, the amount of pushing of the punch is adjusted by an inclined surface having an opposite slope between the side surface of the effective cutting edge and the retaining collar.
【００１０】[0010]
【実施例】図１はこの発明の一実施例を示す断面図であ
る。図に示すように、曲げ型はポンチ１とポンチホルダ
１４とポンチプレート１２とストリッパプレート１６及
びダイ２とを有する。ボンチ１は上端押え部と下端刃先
部に水平な面を有し、上端押え部には有効刃先側面４側
にのみ突出した抜止めつば５を有する。有効刃先側面４
は刃先６から加工物の曲げ角度βに応じて定められる９
０度以下の角度αで中心側に傾斜した傾斜面からなり、
有効刃先側面４と抜止めつば５間の側面７は有効刃先側
面４の勾配と逆の勾配を有する傾斜面からなる。また、
有効刃先側面４と相対する側面８の先端部９には有効刃
先側面４と平行な傾斜面を有する。抜止めつば５の上面
の有効刃先側面４の傾斜面の延長線との交点１０と抜止
めつば５の先端部の間には有効刃先側面４の傾斜面の勾
配と同じ勾配で下方向に傾斜した傾斜面５ａでで形成さ
れた逃げ部を有し、交点１０はポンチ１の刃先をダイ２
のダイ穴１１に押し込んだときにポンチ１を回動する支
点となる。また、ダイ２のダイ穴１１にはポンチ１の有
効刃先側面４と平行な傾斜面を有する。1 is a sectional view showing an embodiment of the present invention. As shown in the figure, the bending die is punch 1 and punch holder.
14, punch plate 12, stripper plate 16 and
And die 2. The punch 1 has a top edge and a bottom edge.
Has a horizontal surface, and the upper end pressing portion has a retaining collar 5 protruding only to the effective blade edge side surface 4 side. Effective cutting edge side 4
Is determined from the cutting edge 6 according to the bending angle β of the workpiece 9
It consists of an inclined surface inclined toward the center side at an angle α of 0 degrees or less,
Effective cutting edge side 4 and the side surface 7 between the retaining Metsuba 5 an inclined surface having a gradient opposite slope of the effective cutting edge side 4. Also,
An effective blade is provided at the tip portion 9 of the side surface 8 facing the effective blade tip side surface 4.
It has an inclined surface parallel to the front side surface 4 . Between the intersection 10 of the upper surface of the retaining collar 5 and the extension of the inclined surface of the effective blade edge side surface 4 and the tip of the retaining collar 5 are inclined downward with the same slope as the slope of the effective blade edge side surface 4. It has a relief part formed by the inclined surface 5a, and the intersection point 10 is the die edge of the punch 1 of the punch 1.
A support for rotating the punch 1 when it is pushed into the die hole 11 of
Point and ing. Further, the die hole 11 of the die 2 has an inclined surface parallel to the effective blade edge side surface 4 of the punch 1.
【００１１】ポンチ１はポンチプレ−ト１２の段付きの
取付穴１３に刃先６から挿入され、抜止めつば５で支持
されている。このポンチ１の上面はポンチホルダ１４で
押えられ、刃先先端部はポンチプレ−ト１２にスプリン
グ１５を介して取り付けられたストリッパプレ−ト１６
のガイド穴１７に挿入されている。ダイ３はストリッパ
プレ−ト１６から所定距離隔てた位置に配置されている
ダイプレ−ト１８に取り付けられている。The punch 1 is inserted into the stepped mounting hole 13 of the punch plate 12 from the cutting edge 6 and is supported by the retaining collar 5. The upper surface of the punch 1 is pressed by a punch holder 14, and the tip end of the cutting edge is attached to a punch plate 12 via a spring 15 and a stripper plate 16 is attached.
Is inserted in the guide hole 17 of the. The die 3 is attached to a die plate 18 arranged at a position separated from the stripper plate 16 by a predetermined distance.
【００１２】上記のように構成された曲げ型で金属板３
をＬ字曲げ加工するときの動作を図２、図３の工程を示
す断面図を参照して説明する。The bending die constructed as described above is used as the metal plate 3
The operation of L-shaped bending will be described with reference to the sectional views showing the steps of FIGS.
【００１３】図１に示すようにダイプレ−ト１８の所定
の位置に加工する金属板３を置いてポンチホルダ１４を
例えば油圧装置で押し下げる。この押し下げによりスト
リッパプレ−ト１６が金属板３に当り、スプリング１５
の圧縮力でストリッパプレ−ト１６が金属板３を押圧し
て金属板３をダイ２の上面に密着させる。さらにポンチ
ホルダ１４を押し下げると、図２に示すように、ポンチ
１は中心側に傾斜した有効刃先側面４がストリッパプレ
−ト１６のガイド穴１７の先端部に案内され、他方の側
面８の傾斜した先端部９がダイ穴１１の傾斜面に案内さ
れて、上面の有効刃先側面４の傾斜面の延長線との交点
１０を支点として回動しながら、刃先６をダイ穴１１に
押し込み、金属板３を曲げ始める。そしてポンチ１の有
効刃先側面４の上端部が、図３に示すように、ストリッ
パプレ−ト１６のガイド穴１７の先端部に達するまで、
ポンチ１は上記回動をしながらダイ穴１１内に押し込ま
れ、金属板３を90度より小さな角度で曲げる。As shown in FIG. 1, the metal plate 3 to be processed is placed at a predetermined position of the die plate 18 and the punch holder 14 is pushed down by, for example, a hydraulic device. By this pushing down, the stripper plate 16 hits the metal plate 3 and the spring 15
The stripper plate 16 presses the metal plate 3 with the compressive force of (3) to bring the metal plate 3 into close contact with the upper surface of the die 2. When the punch holder 14 is further pushed down, as shown in FIG. 2, in the punch 1, the effective blade edge side surface 4 inclined toward the center side is guided to the tip end portion of the guide hole 17 of the stripper plate 16 and the other side surface 8 is inclined. The tip portion 9 is guided by the inclined surface of the die hole 11, and the blade edge 6 is pushed into the die hole 11 while rotating with the intersection 10 with the extension line of the inclined surface of the effective blade edge side surface 4 of the upper surface as the fulcrum, and the metal plate Start to bend 3. Then, as shown in FIG. 3, until the upper end of the effective blade edge side surface 4 of the punch 1 reaches the tip of the guide hole 17 of the stripper plate 16,
The punch 1 is pushed into the die hole 11 while rotating, and bends the metal plate 3 at an angle smaller than 90 degrees.
【００１４】ポンチ１の有効刃先側面４の上端部がスト
リッパプレ−ト１６のガイド穴１７の先端部に達する
と、有効刃先側面４と抜止めつば５間の側面７がストリ
ッパプレ−ト１６のガイド穴１７の側面に当りポンチ１
の回動を抑制し、ポンチ１の余分な押し下げを停止させ
ることができる。そこで有効刃先側面４に応じた長さ分
だけポンチ１を押し下げた後に、ダイプレ−ト１８を上
昇させると、ポンチ１は押し下げのときとは逆の方向に
回動しながら上昇してダイ穴１１から抜ける。When the upper end of the side surface 4 of the effective cutting edge of the punch 1 reaches the tip of the guide hole 17 of the stripper plate 16, the side surface 7 between the side surface 4 of the effective cutting edge and the retaining collar 5 of the stripper plate 16. Punch 1 against the side of the guide hole 17
The rotation of the punch 1 can be suppressed, and the excessive depression of the punch 1 can be stopped. Therefore, when the punch 1 is pushed down by a length corresponding to the effective blade edge side surface 4 and then the die plate 18 is raised, the punch 1 is raised while rotating in a direction opposite to the pushing direction, and the die hole 11 is moved. Get out of.
【００１５】このようにして金属板３を90度より小さな
角度で曲げることができる。また、金属板３を90度の角
度でＬ字曲げするときは、ポンチ１の有効刃先側面４の
角度αとダイ穴１１の傾斜面の角度をスプリングバック
を見込んだ角度にすることにより、金属板３を精度良く
Ｌ字曲げ加工することができる。In this way, the metal plate 3 can be bent at an angle smaller than 90 degrees. Further, when the metal plate 3 is bent in an L-shape at an angle of 90 degrees, the angle α of the effective cutting edge side surface 4 of the punch 1 and the angle of the inclined surface of the die hole 11 are set to allow for the spring back. The plate 3 can be accurately bent into an L shape.
【００１６】また、金属板３をＬ字曲げする場合に従来
例のように金属板３の曲げ部に強い圧縮力を加えて打ち
込み部を形成する必要がないから、小さな押下力で金属
板３を曲げ加工することができる。Further, when the metal plate 3 is bent in an L shape, it is not necessary to apply a strong compressive force to the bent portion of the metal plate 3 to form the driving portion as in the conventional example, so that the metal plate 3 can be pressed with a small pressing force. Can be bent.
【００１７】なお、上記実施例はポンチ１の有効刃先側
面４を１つの傾斜面で形成した場合について説明した
が、図４に示すように、有効刃先側面４に段差を設け、
段差の角部４ａを円弧状とし、ダイ２の肩部も円弧状に
することにより、金属板３の曲げ部を円弧状にすること
もできる。In the above embodiment, the case where the effective cutting edge side surface 4 of the punch 1 is formed by one inclined surface has been described. However, as shown in FIG. 4, a step is provided on the effective cutting edge side surface 4,
The bent portion of the metal plate 3 can also be formed into an arc shape by forming the corner 4a of the step into an arc shape and the shoulder portion of the die 2 into an arc shape.
【００１８】また、上記実施例は金属板３をＬ字曲げす
る場合について説明したが、上記ポンチ１とダイ２を２
セット設けることによりＵ字曲げにも同様に適用するこ
とができる。In the above embodiment, the case where the metal plate 3 is bent in an L shape has been described.
By providing a set, it can be similarly applied to U-shaped bending.
【００１９】[0019]
【発明の効果】この発明は以上説明したように、刃先側
面に90度以下の角度の傾斜面を有するポンチを、傾斜面
で案内しながら回動させて傾斜したダイ穴に押し込んで
金属板を曲げ加工することにより、金属板を１回の曲げ
加工で90度以下の角度に曲げることができる。As described above, according to the present invention, a punch having an inclined surface with an angle of 90 degrees or less on the blade side surface is rotated while being guided by the inclined surface and pushed into an inclined die hole to insert a metal plate. By performing the bending process, the metal plate can be bent at an angle of 90 degrees or less with one bending process.
【００２０】このように金属板を90度以下の角度に曲げ
加工することができるから、金属板の曲げ角度を材質に
応じてスプリングバックを見込んだ角度にすることによ
り、金属板を正確に90度のＬ字状に曲げることができ
る。Since the metal plate can be bent at an angle of 90 degrees or less in this way, the metal plate can be accurately bent to 90 degrees by setting the bending angle of the metal plate to allow for springback according to the material. It can be bent into an L shape.
【図１】この発明の実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】上記実施例の動作工程を示す断面図である。FIG. 2 is a cross-sectional view showing an operation process of the above embodiment.
【図３】上記実施例の動作工程を示す断面図である。FIG. 3 is a cross-sectional view showing an operation process of the above embodiment.
【図４】他の実施例を示す断面図である。FIG. 4 is a sectional view showing another embodiment.
【図５】従来例を示す断面図である。FIG. 5 is a cross-sectional view showing a conventional example.
１ ボンチ ２ ダイ １２ ポンチプレ−ト １６ ストリッパプレ−ト １８ ダイプレ−ト 1 Bonch 2 Die 12 Punch Plate 16 Stripper Plate 18 Die Plate
Claims (1)
ポンチプレート（１２）とストリッパプレート（１６）
及びダイ（２）とを有し、 ポンチ（１）は上端押え部と下端刃先部に水平な面を有
し、被加工物と接触する有効刃先側面（４）と相対する
側面（８）は上端押え部と下端刃先部の水平な面に対し
て垂直な面を有し、上端押え部には加工物側にのみ突出
した抜止めつば（５）を有し、有効刃先側面（４）は加
工物の曲げ角度βに応じて定められる９０度以下の傾斜
角αで中心側に傾斜した傾斜面からなり、有効刃先側面
（４）と抜止めつば（５）間の側面（７）は有効刃先側
面（４）の勾配と逆の勾配を有する傾斜面からなり、有
効刃先側面（４）と相対する側面（８）の先端部には有
効刃先側面（４）と平行な傾斜面（９）を有し、上端押
え部の水平な面の有効刃先側面（４）の傾斜面の延長線
との交点（１０）と抜止めつば５の先端部の間には有効
刃先側面４の傾斜面の勾配と同じ勾配で下方向に傾斜し
た傾斜面５ａで形成された逃げ部を有し、交点（１０）
はポンチ（１）の刃先をダイ（２）のダイ穴（１１）に
押し込んだときにポンチ（１）を回動する支点となり、 ポンチホルダ（１４）は下面がポンチ（１）の上端押え
部に係合し、 ポンチプレート（１２）はポンチ（１）の抜止めつば
（５）を回動自在に保持する段付きの取付穴（１３）を
有し、ポンチホルダ（１４）の下部に取り付けられ、 ストリッパプレート（１６）はポンチ（１）の刃先部を
案内するガイド穴（１７）を有し、スプリング（１５）
を介してポンチプレート（１２）の下部に配置され、 ダイ（２）のダイ穴（１１）はポンチ（１）の有効刃先
側面（４）と平行な傾斜面を有することを特徴とする曲
げ型。 1. A punch (1) and a punch holder (14)
Punch plate (12) and stripper plate (16)
And a die (2), and the punch (1) has a horizontal surface at the upper end pressing part and the lower end cutting edge part.
And faces the effective blade edge side surface (4) that comes into contact with the workpiece.
The side surface (8) is against the horizontal surface of the upper end pressing part and the lower end cutting edge part.
And has a vertical surface, and the upper end retainer projects only on the workpiece side.
Has a retaining collar (5) that is
Inclination of 90 degrees or less determined according to the bending angle β of the work
It consists of an inclined surface inclined to the center side at angle α, and the effective cutting edge side surface.
The side surface (7) between (4) and the retaining collar (5) is the effective cutting edge side.
It consists of an inclined surface with a gradient opposite to that of the surface (4),
The tip of the side face (8) facing the side face (4) of the cutting edge has
It has an inclined surface (9) parallel to the blade edge side surface (4),
Extension line of the inclined surface of the effective blade edge side surface (4) of the horizontal surface of the collar
Effective between the intersection (10) with and the tip of the retaining collar 5.
Tilts downward with the same slope as the slope of the cutting edge side surface 4.
Has a relief portion formed by the inclined surface 5a and has an intersection (10)
The punch edge of the punch (1) into the die hole (11) of the die (2)
It becomes a fulcrum for rotating the punch (1) when pushed in, and the lower surface of the punch holder (14) is the upper end presser of the punch (1).
Part of the punch plate (12) , and the punch plate (12) engages with the punch part (1).
The stepped mounting hole (13) that holds (5) rotatably
And is attached to the lower part of the punch holder (14), and the stripper plate (16) has the cutting edge of the punch (1).
Spring (15) with guide hole (17) for guiding
Is located in the lower part of the punch plate (12) through the die, and the die hole (11) of the die (2) is an effective cutting edge of the punch (1).
A song characterized by having an inclined surface parallel to the side surface (4)
Bald shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4143758A JP2563036B2 (en) | 1992-05-11 | 1992-05-11 | Bending type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4143758A JP2563036B2 (en) | 1992-05-11 | 1992-05-11 | Bending type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06170448A JPH06170448A (en) | 1994-06-21 |
| JP2563036B2 true JP2563036B2 (en) | 1996-12-11 |
Family
ID=15346342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4143758A Expired - Lifetime JP2563036B2 (en) | 1992-05-11 | 1992-05-11 | Bending type |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2563036B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923659A (en) * | 2014-03-19 | 2015-09-23 | 上海强精金属制品有限公司 | Folding die with adjustable folding angle for air conditioner top plate |
| CN104923658A (en) * | 2014-03-19 | 2015-09-23 | 上海强精金属制品有限公司 | Rotary folding die for air conditioner partition |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915065B (en) * | 2017-05-03 | 2023-08-04 | 重庆市益源捷科技有限公司 | PC sheet material bending device |
-
1992
- 1992-05-11 JP JP4143758A patent/JP2563036B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923659A (en) * | 2014-03-19 | 2015-09-23 | 上海强精金属制品有限公司 | Folding die with adjustable folding angle for air conditioner top plate |
| CN104923658A (en) * | 2014-03-19 | 2015-09-23 | 上海强精金属制品有限公司 | Rotary folding die for air conditioner partition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06170448A (en) | 1994-06-21 |
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