JPS6352730A - Cold forging device - Google Patents
Cold forging deviceInfo
- Publication number
- JPS6352730A JPS6352730A JP19600786A JP19600786A JPS6352730A JP S6352730 A JPS6352730 A JP S6352730A JP 19600786 A JP19600786 A JP 19600786A JP 19600786 A JP19600786 A JP 19600786A JP S6352730 A JPS6352730 A JP S6352730A
- Authority
- JP
- Japan
- Prior art keywords
- machine
- wire drawing
- continuous wire
- forging
- cold forging
- 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
- 238000010273 cold forging Methods 0.000 title claims abstract description 31
- 238000005491 wire drawing Methods 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 27
- 238000005242 forging Methods 0.000 claims abstract description 21
- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 239000000284 extract Substances 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、コイル伏の線・棒材を材料として精密ボルト
、小型モータシャフト等を冷間にて連続的に鍛造成形す
る冷間鍛造装置に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cold forging device that continuously cold forges precision bolts, small motor shafts, etc. using coiled wire/bar materials.
従来の技術
］イル状の線・棒状（以下単に線材コイルと称す）を材
料として小型モータシャフト、精密ボルト等を冷間にて
連続的に鍛造成形するには、通常第５図に示すような、
コイル巻戻し機（１）と、入側に駆動機（４１）で回転
駆動される主軸（４０）に機械的に連結されていて所定
タイミングで回転駆動して材料送給する材料送りロール
（３）を併設した冷間鍛造機（４）とを直接連設して鍛
造ラインを構成した装置が用いられていた。ところが、
この装置による場合は使用材料に線径バラツキがあると
高寸法精度成品が得難いという問題があった。[Prior art] In order to continuously cold-forge small motor shafts, precision bolts, etc. using coil-shaped wires and rods (hereinafter simply referred to as wire coils), a method as shown in Fig. 5 is usually used. ,
A coil unwinding machine (1) and a material feeding roll (3) which is mechanically connected to a main shaft (40) which is rotationally driven by a drive machine (41) on the entry side and which is rotationally driven at a predetermined timing to feed the material. ) and a cold forging machine (4) were installed directly in series to form a forging line. However,
When this device is used, there is a problem in that it is difficult to obtain products with high dimensional accuracy if the wire diameter of the materials used varies.
したがって、最近は第４図に示すように、コイル巻戻し
機（１）と、入側に前述の第５図装置同様の材料送りロ
ール（３）を併設した冷１７１鍛造機（４）との間に、
間欠連続的な伸線を行なう連続伸線機（２）を介設して
鍛造ラインを構成した装置が主として用いられるように
なっている。Therefore, recently, as shown in Fig. 4, a coil unwinding machine (1) and a cold 171 forging machine (4) equipped with a material feed roll (3) similar to the device shown in Fig. 5 described above on the entry side are used. Between,
A device in which a forging line is constructed by interposing a continuous wire drawing machine (2) that performs intermittent continuous wire drawing is now mainly used.
この現在主に用いられる装置は、図から叫らかなように
、連続伸線機（２）は専用の駆動機を備えないもので、
その揺動レバー（２２）を鍛造ライン前後方向へ冷間鍛
造機（４）の鍛造タイミングに同期させて揺動させるク
ランク軸ωの回転を、このクランク軸■と冷間鍛造機（
４）の電動又は油圧モータ等からなる駆動機（４１）に
より回転駆動される主軸（４ｏ）とに掛装したヂエーン
（５）をもってさせるよう番こしたものである。なお、
図中（２１）は連ＩＡ７７− ノ２、（２３）はダイス
、（２４）はグイホルダー、（２５）は開閉チャック、
（２６）は従動スブ「１ケツ）、（４２）は駆動スプロ
ケット、 （５］）はチェーンカバー、 （５２）はテ
ンシＪナー、Ｍは材料である線材コイルである。As is clear from the figure, the device mainly used at present is a continuous wire drawing machine (2) that does not have a dedicated drive machine.
The rotation of the crankshaft ω, which swings the swinging lever (22) in the front and back direction of the forging line in synchronization with the forging timing of the cold forging machine (4), is controlled by the rotation of the crankshaft ω and the cold forging machine (
4) The main shaft (4o) is rotatably driven by a drive machine (41) such as an electric or hydraulic motor, and a chain (5) is attached to the main shaft (4o). In addition,
In the figure, (21) is the series IA77-no 2, (23) is the die, (24) is the holder, (25) is the opening/closing chuck,
(26) is a driven sub (1 piece), (42) is a driving sprocket, (5) is a chain cover, (52) is a tensioner, and M is a wire coil material.
なおまた、前述連続伸線機（艶はグイボルダ−（２４）
の前段（図左方）に初期伸線時に材料を把握して送給す
る揺動レバー（２２）と同じ態様でクランク軸（２［［
１にクラッチを介して連結された揺動Ｉ／バーによって
鍛造ライン方向へ前後進する入側チャック（図示省略）
を備えている。Furthermore, the above-mentioned continuous wire drawing machine (Gloss is Guibolder (24)
The crankshaft (2 [[
An entry chuck that moves back and forth in the direction of the forging line by a swinging I/bar connected to 1 via a clutch (not shown)
It is equipped with
発明が解決しようとする問題点
しかしながら、前述第４図に示した従来装置にあっては
、連続伸線機（２）の揺動レバー（２２）を作動させる
クランク軸■の回転を、冷間１９ 造ａ （４）の主軸
（４０）からヂエーン（５）によって得ることとしてい
るから、その稼動中に初期設定された同期タイミングに
誤差か生じた場合において調整か一切不可能であるとい
う致命的な欠点があった。Problems to be Solved by the Invention However, in the conventional apparatus shown in FIG. 19 Construction a Since the synchronization timing is obtained from the main shaft (40) of (4) by the chain (5), it is fatal that if an error occurs in the initially set synchronization timing during operation, it will be impossible to adjust it at all. There was a drawback.
また、第５図に示す既存装置を高寸法精度成品を得るべ
く第４図装置に改造する場合には、冷間鍛造機（４）を
分解して主軸（４０）を駆動スブ［ｊケラト（４２）か
装着可能なものに、駆動機（４１）を連続伸線機（２）
をも作動させうる大容量なものにそれぞれ交換する等し
なければならず、費用が嵩むのに加え、長期の工事期間
を要し不紅済である。さらに、冷間鍛造機（４）本体フ
レームに主軸（４０）等の交換スペースがない場合には
改造が不可能であるという問題かあ。た。In addition, when modifying the existing equipment shown in Fig. 5 to the equipment shown in Fig. 4 in order to obtain products with high dimensional accuracy, the cold forging machine (4) is disassembled and the main shaft (40) 42) or a continuous wire drawing machine (2) that can be attached to the drive machine (41).
Each of them had to be replaced with a larger-capacity one that could also operate, which not only increased costs but also required a long construction period, which was unprofitable. Furthermore, if there is no space in the body frame of the cold forging machine (4) to replace the main shaft (40), etc., there is a problem that modification is impossible. Ta.
問題点を解決するための手段
本発明は、前述の従来装置にあった問題点を解決すべく
なされたもので、鍛造ラインを構成する機器のうち、連
続伸線機として専用の駆動機を有するものを用いること
とし、この専用の駆動機を冷間鍛造機の鍛造タイミング
を電気信りとして取出して制御信号を発する制御手段に
よって冷間鍛造機の鍛造タイミングに同期して連続伸線
機を作動させるようにしたことを特徴とする。Means for Solving the Problems The present invention has been made to solve the problems of the conventional apparatus described above, and among the equipment constituting the forging line, the continuous wire drawing machine has a dedicated drive machine. This dedicated drive machine operates the continuous wire drawing machine in synchronization with the forging timing of the cold forging machine using a control means that extracts the forging timing of the cold forging machine as an electric signal and issues a control signal. It is characterized by being made to do.
作 用
本発明の冷間鍛造機では、連続伸線機の冷間鍛造機に対
する同期作動が、冷間＠造機の鍛造タイミングを電気信
号として取出し制御信号を発する制御手段の指令によっ
て駆動される専用の駆動機によって行なわれる。Function: In the cold forging machine of the present invention, the synchronous operation of the continuous wire drawing machine with respect to the cold forging machine is exclusively driven by a command from a control means that takes out the forging timing of the cold forging machine as an electric signal and issues a control signal. It is carried out by a driving machine.
実 施 例 以下、本発明の実施例を図面により具体的に説明する。Example Embodiments of the present invention will be specifically described below with reference to the drawings.
第１図は本発明の一実施例にか＼る冷間鍛造装置をその
制御手段とと６に示す平面図、第２図は一部破断同側面
図であり、従来装置と同一機器部材は同一符号を符して
示しである。FIG. 1 is a plan view showing a cold forging device according to an embodiment of the present invention and its control means, and FIG. They are indicated by the same reference numerals.
図において、（１）は出側にピンチロール対と曲げ矯正
ロール対を有する線材コイル巻戻し機、（２）は連続伸
線機、（３）は材料送りロール、（４）は冷間鍛造機、
（６）は制御手段である。連続伸線機（２）は専用の電
動又は油圧モータ等からなる駆動機（２７）を有し、該
駆動機（２７）は減速機（２８）を介してクランク軸１
２０）に連結されている。クランク軸Ｑ０には連結アー
ム（２１）を介してその先端部が一二又杖に形成され中
間を機体フレームに枢支された揺動レバー（２２）ノ基
端か連結してあり、クランク軸■の回転によって揺動レ
バー（２２＞の先端部を鍛造ライン前後方向へ往復揺動
させるようになっている。（２４）はグイホルダーで内
部にダイス（２３）を有し、機体フレーム内を鍛造ライ
ン方向へ摺動しうるよう揺動レバー（２２）の先端部よ
り前段に設けられていて、図左方への移動は揺動レバー
（２２）により行なわれ、図右方への移動は材料送りロ
ール（３）による材料の移動によって行なわれるように
なっている。（２５）はグイホルダ（２４）の移動域よ
り後段に機体フレームに対して固定設置された開閉チャ
ックであり、グイホルダー（２４）の図右端から図左端
方向への材料縮径伸線移動時に閉じて材料を把握してそ
の移動をド■止し、材料送りロール（３）による材料送
給時に開いてその移動を阻止しないようになっている。In the figure, (1) is a wire rod coil unwinding machine with a pair of pinch rolls and a pair of bending straightening rolls on the exit side, (2) is a continuous wire drawing machine, (3) is a material feeding roll, and (4) is a cold forging machine. machine,
(6) is a control means. The continuous wire drawing machine (2) has a drive machine (27) consisting of a dedicated electric or hydraulic motor, etc., and the drive machine (27) is connected to the crankshaft 1 through a speed reducer (28).
20). The base end of a swinging lever (22) whose distal end is formed into a bifurcated cane and whose middle part is pivoted to the fuselage frame is connected to the crankshaft Q0 via a connecting arm (21). The tip of the swing lever (22>) is made to swing back and forth in the forging line front and back direction by the rotation of (2). (24) is a guide holder that has a die (23) inside and moves inside the machine frame. It is provided in front of the tip of the swing lever (22) so that it can slide in the direction of the forging line, and movement to the left in the figure is performed by the swing lever (22), and movement to the right in the figure is performed by the swing lever (22). This is done by moving the material using a material feed roll (3). (25) is an opening/closing chuck that is fixed to the machine frame at a stage downstream from the moving area of the goo holder (24). 24) When the material is moved from the right end of the figure to the left end of the figure, it closes to grasp the material and stop its movement, and opens when the material is fed by the material feed roll (3) to prevent its movement. It is designed not to.
（２９）は駆動機（２７）の電源又は油圧源等からなる
駆動源である。(29) is a driving source consisting of a power source or a hydraulic power source for the driving machine (27).
材料送りロール（３）は、前述従来装置と同様であって
、所定のタイミングで所定時間所定速度バタ−ノで回転
して所要長さの材料送給を行なうものである。The material feed roll (3) is similar to the conventional device described above, and rotates at a predetermined speed at a predetermined speed at a predetermined timing for a predetermined time to feed material over a predetermined length.
冷間鍛造機（４）は、前述従来装置に用いられているも
のと同様の周知のものであり、その内部には電動又は油
圧モータ等からなる駆動機（４Ｉ）によって回転される
主軸（４ｏ）に機械的手段等適宜手段で連撃されていて
所定のタイミングで作動する図示省略した材料カッター
、送りロール、鍛造ヘッド、金型等を備えており、供給
された材料を所望の成品に成形する。The cold forging machine (4) is a well-known machine similar to the one used in the conventional apparatus described above, and has a main shaft (4 ) is equipped with a material cutter (not shown), a feed roll, a forging head, a mold, etc., which are repeatedly struck by appropriate means such as mechanical means and operate at a predetermined timing, to form the supplied material into the desired product. do.
制御手段（６）は、冷間鍛造機（４）の主軸（４ｏ）に
装着され該主軸の回転角（回転量でも可）を検出する回
転角度検出器（６０）と、連続伸線機（２）のクランク
軸（至）に装着され該クランク軸の回転角（回転量でも
可）を検出する回転角度検出器（６１）と、どれら両回
転角度検出器（［３０）、 （６１）の検出結果からそ
の位相差を求める位相差演算器（６３）と、連続伸線機
（２）の駆動機（２７）に装着され該駆動機の回転速度
を検出する回転速度検出器（６２）と、該回転速度検出
器（６２）の検出結果と前記位相差演算器（６３）の演
算結果とにもとづいて前記連続伸線機（２）の駆動機（
２７）に動力を供給する駆動源（２９）に対して作動指
令信号と回転速度指令信号を発する駆動源運転制御器（
６４）と、前記位相差演算器による演算結果を表示する
表示器（６５）とから構成されており、これによって連
続伸線機（２）の揺動アーム（２２）の先端部が第３図
に示す動作をするように専用の駆動機（２７）、換言す
ればクランク軸■を回転させる。The control means (6) includes a rotation angle detector (60) that is attached to the main shaft (4o) of the cold forging machine (4) and detects the rotation angle (or the amount of rotation) of the main shaft, and a continuous wire drawing machine ( A rotation angle detector (61) that is attached to the crankshaft (to) of 2) and detects the rotation angle (or rotation amount) of the crankshaft, and both rotation angle detectors ([30], (61) a phase difference calculator (63) that calculates the phase difference from the detection results of the above, and a rotation speed detector (62) that is attached to the drive machine (27) of the continuous wire drawing machine (2) and detects the rotation speed of the drive machine. Based on the detection result of the rotational speed detector (62) and the calculation result of the phase difference calculation unit (63), the driving machine (
A drive source operation controller (27) that issues an operation command signal and a rotational speed command signal to the drive source (29) that supplies power to the
64) and a display (65) for displaying the calculation results by the phase difference calculation unit, which allows the tip of the swinging arm (22) of the continuous wire drawing machine (2) to move as shown in FIG. The dedicated drive machine (27), in other words, the crankshaft (2) is rotated so as to perform the operation shown in FIG.
第３図は主軸（４０）の回転角度に応じた各主要機器部
材の位置および／または速度の関係を示した線図で、同
図（イ）は図示を省略した冷間鍛造機（４）内の鍛造ヘ
ッドが主軸（４０）回転角度０°の時に後退限（連続伸
線機側）にあるとして示す鍛造ヘッドの位置を、同図（
ロ）は連続伸線機（２）の揺動レバー（２２）が第２図
左′Ｍ（後退限）位置にある時を基準とじ図右方移動時
を正、図左方移動時を負として示す揺動レバー（２２）
の上端部移動速度を実線で、また材料送りロール（３）
の周速度を破線で、同図（ハ）は前記揺動レバー（２２
）の上端部が第２図左端（後退限）位置にある時を基準
として示ず揺動レバー（２２）の上端部位置を実線で、
また材料の位置を破線でそれぞれ示す。Fig. 3 is a diagram showing the relationship between the position and/or speed of each main equipment member according to the rotation angle of the main shaft (40), and Fig. 3 (A) is a diagram showing the relationship between the position and/or speed of each main equipment member according to the rotation angle of the main shaft (40), and Fig. 3 (A) is a diagram of the cold forging machine (4), which is not shown. The position of the forging head shown as being at the retraction limit (on the continuous wire drawing machine side) when the main shaft (40) rotation angle is 0° is shown in the same figure (
B) is based on when the swing lever (22) of the continuous wire drawing machine (2) is at the left 'M (backward limit) position in Figure 2. Positive when moving to the right in the figure, negative when moving to the left in the figure. Swinging lever (22) shown as
The solid line indicates the moving speed of the upper end of the material feed roll (3).
The broken line indicates the circumferential speed of the swing lever (22).
) is at the left end (retraction limit) position in Figure 2, not shown as a reference, and the solid line indicates the upper end position of the swing lever (22).
In addition, the positions of the materials are indicated by broken lines.
なお、同図（ハ）中の一点鎖線は４５ｏ°以降の材料位
置を基準（揺動レバー後退限）点にスライドして示した
ものである。In addition, the dashed-dotted line in the same figure (c) shows the material position after 45 degrees sliding to the reference (swing lever backward limit) point.
この第３図から明らかなように、駆動機（２７）は揺動
レバー（２２）の上端が主軸（４０）の３０°口転時点
で前進（第２図右方）始動するとともに、その移動速度
が同図（ロ）になるように制御手段（６）によって制御
される。As is clear from FIG. 3, the drive machine (27) starts moving forward (to the right in FIG. 2) when the upper end of the swing lever (22) rotates the main shaft (40) by 30°, and The speed is controlled by the control means (6) so that it becomes as shown in FIG.
なお、前述実施例では鍛造ラインを線材コイル巻戻し機
（１）、連続伸線機（２）、材料送りロール（３）、冷
間鍛造機（４）の４つで構成した場合を示したが、線材
コイル巻戻し機（１）と連続伸線機（２）との間に独立
の曲り矯正機を介設することとしてもよい。In addition, in the above-mentioned example, a case was shown in which the forging line was composed of four parts: a wire rod coil unwinding machine (1), a continuous wire drawing machine (2), a material feeding roll (3), and a cold forging machine (4). However, an independent bend straightening machine may be interposed between the wire coil unwinding machine (1) and the continuous wire drawing machine (2).
また、材料送りロール（３）は冷間鍛造機（４）の主軸
（４０）に機械的に連結されて同期作動させられるもの
でなく、独立した専用の駆動機を設は連続伸線機（２）
の駆動機（２７）に対すると同様の制御手段にて同期作
動さるようにしてもよい。またさらに、制御手段（６）
を構成する機器のうち主軸（４０）に装着した回転角度
検出器（６０）等はその駆動機に装着することも可能で
、この場合には介設り、た減速機による減速比に応じて
どれらを補正するようにすればよい。In addition, the material feed roll (3) is not mechanically connected to the main shaft (40) of the cold forging machine (4) and operated synchronously, but an independent dedicated drive machine is installed in the continuous wire drawing machine ( 2)
The synchronous operation may be performed using the same control means as for the drive machine (27). Furthermore, the control means (6)
Among the devices that make up the system, the rotation angle detector (60) attached to the main shaft (40) can also be attached to the drive machine. Which one should be corrected?
発明の効果
以上のように本発明によれば、連続伸線機は専用の駆動
機によって冷間鍛造機の鍛造タイミングを電気信号とし
て取出して同期作動信号を発する制御手段により作動せ
しめられるから、従来のヂエーンによる機械的連結同期
作動によって生じる問題点を全てなくすことができる。Effects of the Invention As described above, according to the present invention, the continuous wire drawing machine is operated by a control means that extracts the forging timing of the cold forging machine as an electric signal by a dedicated drive machine and issues a synchronous operation signal, which is different from conventional wire drawing machines. All the problems caused by the mechanically coupled synchronous operation due to the chain can be eliminated.
また、第５図既存装置の改造に際しても冷間鍛造機を分
解することは一切不要で単に必要な検出器を付設するの
みで改造が安価かつ短期間にできるというずぐれた効果
を奏する。Further, even when modifying the existing equipment shown in FIG. 5, there is no need to disassemble the cold forging machine at all, and the modification can be done inexpensively and in a short period of time by simply attaching the necessary detectors, which is an outstanding effect.
第１図は本発明の一実施例にがかる冷間鍛造装置を制御
手段と共に示す平面図、第２図は一部破断同側面図、第
３図は本発明装置のｆｌｉｌＪ御態様を示ず主要機器部
材の関係線図、第４図および第５図は従来の冷間鍛造装
置を示す側面図である。
１・・・線材コイル巻戻し機 ２・・・連続伸線機２７
・・・連続伸線機専用の駆動機
３・・・材ｆ″１送りロール ↓・・・冷間鍛造機
６・・・制御手段FIG. 1 is a plan view showing a cold forging apparatus according to an embodiment of the present invention together with a control means, FIG. 2 is a partially cutaway side view of the same, and FIG. 4 and 5 are side views showing a conventional cold forging device. 1...Wire coil unwinding machine 2...Continuous wire drawing machine 27
...Drive machine 3 for continuous wire drawing machine...Material f''1 feed roll ↓...Cold forging machine 6...Control means
Claims (1)
と、冷間鍛造機とを連設して鍛造ラインを構成した冷間
鍛造装置において、前記連続伸線機は専用の駆動機を有
し、該駆動機が前記冷間鍛造機の鍛造タイミングを電気
信号として取り出して同期作動指令信号を発する制御手
段によって駆動せしめられることを特徴とする冷間鍛造
装置。In a cold forging device in which a forging line is configured by connecting a wire rod coil unwinding machine, a continuous wire drawing machine, a material feed roll, and a cold forging machine, the continuous wire drawing machine has a dedicated drive machine. A cold forging apparatus, characterized in that the driving machine is driven by a control means that extracts the forging timing of the cold forging machine as an electric signal and issues a synchronous operation command signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19600786A JPS6352730A (en) | 1986-08-20 | 1986-08-20 | Cold forging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19600786A JPS6352730A (en) | 1986-08-20 | 1986-08-20 | Cold forging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6352730A true JPS6352730A (en) | 1988-03-05 |
Family
ID=16350676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19600786A Pending JPS6352730A (en) | 1986-08-20 | 1986-08-20 | Cold forging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6352730A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5697738A (en) * | 1994-12-30 | 1997-12-16 | Black & Decker, Inc. | Spade-type boring bit having chamfered corner portions |
| US5842267A (en) * | 1994-12-30 | 1998-12-01 | Black & Decker, Inc. | Method and apparatus for forming parts of a predetermined shape from a continuous stock material |
-
1986
- 1986-08-20 JP JP19600786A patent/JPS6352730A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5697738A (en) * | 1994-12-30 | 1997-12-16 | Black & Decker, Inc. | Spade-type boring bit having chamfered corner portions |
| US5700113A (en) * | 1994-12-30 | 1997-12-23 | Black & Decker Inc. | Spade-type boring bit and an associated method and apparatus for forming metallic parts |
| US5842267A (en) * | 1994-12-30 | 1998-12-01 | Black & Decker, Inc. | Method and apparatus for forming parts of a predetermined shape from a continuous stock material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4672871A (en) | Adjustable apparatus for cutting and conveying wire segments of various lengths | |
| JPH08267163A (en) | Device for straightening, measuring and cutting wire | |
| EP1447150B1 (en) | Pinch roll unit | |
| GB1394772A (en) | Bending machine for rod or strip material | |
| JPS6316214B2 (en) | ||
| JPS62248529A (en) | Coil spring coiler | |
| US2759521A (en) | Apparatus for making flexible hose | |
| JPS6352730A (en) | Cold forging device | |
| JPS5921248B2 (en) | Headless screw manufacturing equipment | |
| US4586357A (en) | Digital control spring forming machine | |
| JP2597320B2 (en) | Continuous processing machine for cutting wire and bending both ends | |
| US5239850A (en) | Method for bending elongated materials in a continuous manner | |
| EP0510087B1 (en) | Spiral paper folding machine | |
| JP4164184B2 (en) | Roll feeder releasing device | |
| US5031291A (en) | Apparatus for bending elongated materials in a continuous manner | |
| JP2869626B2 (en) | Straight cutting machine and running cutting method | |
| JPH0470082B2 (en) | ||
| JP2508071Y2 (en) | Free length adjusting device for coil spring making machine | |
| US5119533A (en) | Method for bending hollow material using a mandrel and for adjusting the shape of the mandrel | |
| JP3593430B2 (en) | Electronically adjustable device for coiling springs for mattresses and cushions | |
| JPS5835089A (en) | Laser blanking device | |
| JPH0256164B2 (en) | ||
| JPH0643937A (en) | Controller for motor of positioning mechanism | |
| JPH0239637Y2 (en) | ||
| JP2002153915A (en) | Coil straightening device, and detector of outside diameter of coil |