JPS61235003A

JPS61235003A - Production of metallic wire

Info

Publication number: JPS61235003A
Application number: JP7675885A
Authority: JP
Inventors: Shigenobu Ueno; 上野　重信
Original assignee: Individual
Current assignee: Individual
Priority date: 1985-04-12
Filing date: 1985-04-12
Publication date: 1986-10-20

Abstract

PURPOSE:To improve production efficiency by providing plural rolling rolls, forming grooves on both surfaces of a metallic plate by front rolls then forming further the grooves to an acute angle by the rear rolls. CONSTITUTION:The front rolling rolls 4 inscribed adjacently with plural pieces of perpendicular angular grooves and round projecting parts on the outside circumferential part are disposed. The rear rolling rolls 7 formed with the angular grooves to the narrower angle are disposed in succession to the rolls 4. The metallic plate 1 is meshed between the front rolls 4 and the projecting parts 5 and grooves 6 are respectively formed on both front and rear surfaces thereof. The steel plate is then meshed between a pair of the rear rolls 7 by which the projecting angles 5 are engraved to the more acute angle and the grooves 6 are dug deeper to execute rolling. The projecting parts 5 are formed to wires 9 each having a square sectional shape by the top and bottom surfaces of a guide roller 8 and in succession the wires 9 each having the round section are efficiently produced by the forming rollers.

Description

【発明の詳細な説明】〔産業上の利用分野〕本発明は、針金や電線その化メガネフレーム等に使用す
る金属線の製造方法の改良に関するもので、特にチタン
等の難加工金属から金属線を製造する方法に関するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to improvements in the manufacturing method of wires, electric wires, and metal wires used for eyeglass frames. The present invention relates to a method for manufacturing.

〔従来の技術〕[Conventional technology]

従来一般に金属線の製造方法としては、丸棒ビレットに
熱間圧延あるいは冷間圧延を施した後、孔ダイスにより
引抜加工し、製線ロット材とした上で伸線機で逐次所定
の太さまで引落とす方法であった。The conventional method for manufacturing metal wire is to hot-roll or cold-roll a round bar billet, then draw it with a hole die to form a wire lot material, which is then sequentially drawn with a wire drawing machine until it reaches a predetermined thickness. It was a method of withdrawal.

しかるにこの方法は、摩擦係数の高いチタン等の難加工
金属の場合、非常に孔ダイスからの引き抜き速度が遅く
なり、生産性が悪かった。However, with this method, in the case of difficult-to-process metals such as titanium, which have a high coefficient of friction, the rate of extraction from the hole die is extremely slow, resulting in poor productivity.

この為本発明は先にこの孔ダイスによらない全く新規な
金属線の製造方法として、金属平板の表裏両面に直線状
の相対する溝を複数個形成し、該溝を切り離すことによ
り凸状部を線材とする製造方法を特願昭５９−１８９７
２１号として出願した。For this reason, the present invention first provides a completely new method for manufacturing metal wire that does not use this hole die, in which a plurality of linear opposing grooves are formed on both the front and back surfaces of a flat metal plate, and the grooves are cut to form convex portions. A patent application was filed in 1897-1987 for a method of manufacturing wire rods.
The application was filed as No. 21.

〔発明が解決する為の手段〕[Means for the invention to solve the problem]

しかしながら上記の製造方法は、溝を形成する圧延ロー
ラーを一対だけで行っていた為、金属板の両面に圧延ロ
ーラーによって溝形成を行う時、ローラーの凸部状（歯
）の角部を９０°以下の鋭角にすると、圧下力のため歯
が負け、この歯が極めて短時間に欠損した。これを防止
する為に、この先端の歯に適度のＲを付は角部の欠損を
防止していたが、この先端にＲを付けることは反面金属
板に刻設する溝にかなり厚みのある部分を残し、それだ
け厚みのある連結部が形成されることになる。この高次
の工程の引張力によって溝を切断し、各凸状部に切り離
す時、この厚みのある連結部が、大きなパリと成り、成
形ロールの加工時にこのパリを巻き込み、線材の表面及
び内面に線状のキズとなって残り、このキズを取り除く
ことは困難であった。このキズの発生により線材として
問題を有することになった。However, in the above manufacturing method, only one pair of rolling rollers were used to form the grooves, so when forming grooves on both sides of the metal plate using rolling rollers, the corners of the protrusions (teeth) of the rollers were bent at a 90° angle. When the following acute angle was used, the tooth was bent due to the rolling force and the tooth was broken in an extremely short period of time. In order to prevent this, a moderate radius was added to the tooth at the tip to prevent the corner from chipping. A thicker connecting portion will be formed by leaving some portions intact. When the groove is cut by the tensile force of this high-order process and separated into each convex part, this thick connection part becomes a large burr, and when the forming roll is processed, this burr is rolled up and the surface and inner surface of the wire It was difficult to remove the linear scratches that remained on the surface. The occurrence of these scratches caused problems as a wire rod.

〔問題点を解決する為の手段〕[Means for solving problems]

本発明は上記に鑑みなされたもので、圧延ロールでの溝
切時に生ずるパリの発生を防止し、よって線材に線状の
キズが形成されることを防止し、しかも圧延ローラーの
先端部の歯を長時間に渡って損傷させない製造方法を提
供することを目的とする。すなわち金属板に溝を形成す
る圧延ロールを複数個設置し、前方の圧延ロールで形成
した溝を、後方のロールでさらに鋭く鋭角にごく薄く形
成し、この溝を切り離すことを特徴とするものである。The present invention has been made in view of the above, and it is possible to prevent the occurrence of cracks that occur when cutting grooves with a rolling roll, thereby preventing the formation of linear scratches on a wire rod, and to prevent the formation of linear scratches on a wire rod. The purpose is to provide a manufacturing method that does not cause damage over a long period of time. In other words, a plurality of rolling rolls are installed to form grooves in a metal plate, and the grooves formed by the front rolling rolls are further formed very thinly at an acute angle by the rear rolls, and these grooves are separated. be.

〔実施例〕〔Example〕

本発明の一実施例を図面につき説明すると、１は中５０
０ｍｍ、厚さ２ｍｍ、長さ約２００ｍのコイル状に捲回
されたチタン合金製の長尺の金属板を示し、この金属板
１は、第一に外周部に直角の角溝２とＲ状の突部３とを
複数個隣接して刻設した一対の相対向する前方圧延ロー
ル４間に噛ませ、その両面に三角形状の凸状部５とその
間に、７字形に窪んだ溝６とを夫々複数個形成する。次
に前記の前方圧延ロール４より突部３が鋭く先端を研磨
した歯先にし、角溝２も挟角に形成された一対の相対向
する後方ロール７間に噛ませ、金属板１に形成した三角
形状の凸状部５がさらに鋭く鋭角に形成され、７字形の
溝６もさらに鋭くえぐられ、隣接する凸状部５同志がか
ろうじて極めて薄い皮膜で連結する程度に圧延する。次
にこの溝６および凸状部５を形成した圧延板を、その凸
状部５の先端を切り離し、相隣接する凸状部５を交互に
ガイドローラー８の上面および下面に位置させ、前方に
引っ張ることによりガイドローラー８の上下面を滑らせ
、溝６を切断し、各凸状部５を切り離し断面はぼ四角形
状の線材９を得た。この前方への引張りは先端部に捲回
ロール（図示せず）を設けても良く、また複数の圧延ロ
ーラー４．７を駆動しても良く、また圧延ローラー４．
７を駆動し引張り、先端の捲回ロールは単にたるんだ線
材９を捲回するのみでも良い。One embodiment of the present invention will be described with reference to the drawings.
0 mm, thickness 2 mm, and length approximately 200 m. This metal plate 1 has a rectangular groove 2 perpendicular to its outer periphery and a rounded groove 2. A plurality of protrusions 3 are interlocked between a pair of opposing front rolling rolls 4 in which a plurality of protrusions 3 are carved adjacently, and triangular protrusions 5 are formed on both sides of the rolls. Form a plurality of each. Next, the protrusions 3 are sharpened from the front rolling roll 4 and the tip is polished, and the square grooves 2 are also engaged between a pair of opposing rear rolls 7, which are also formed at an included angle, to form a tooth tip on the metal plate 1. The triangular convex portion 5 is formed to have an even sharper acute angle, and the 7-shaped groove 6 is also more sharply hollowed out, and the adjacent convex portions 5 are rolled to such an extent that they are barely connected to each other by an extremely thin film. Next, the tip of the convex part 5 is cut off from the rolled plate on which the groove 6 and the convex part 5 have been formed, and the adjacent convex parts 5 are alternately positioned on the upper and lower surfaces of the guide roller 8, and are moved forward. By pulling, the upper and lower surfaces of the guide roller 8 were slid, the grooves 6 were cut, and each of the convex portions 5 was separated to obtain a wire rod 9 having a substantially rectangular cross section. This forward tension may be achieved by providing a winding roll (not shown) at the tip, or by driving a plurality of rolling rollers 4.7, or by driving a plurality of rolling rollers 4.7.
7 may be driven and pulled, and the winding roll at the tip may simply wind the slack wire 9.

次にこの線材９を外面周に半円形の丸溝１０を形成した
対に配置した成形ロール１１の該丸溝１０に噛ませ、線
材９の両側に突出する極く薄い皮膜を取り除くとともに
断面はぼ四角形状の線材９の角部を取り円形にする。こ
の成形ローラー１１は複数個設けてより一層丸くしても
良く、さらに完全な丸線とするには皮むきダイスや表面
研磨（グラインデング）を施せば良い。Next, this wire rod 9 is bitten by the round grooves 10 of forming rolls 11 arranged in pairs with semicircular round grooves 10 formed on the outer circumference, and the extremely thin film protruding on both sides of the wire rod 9 is removed, and the cross section is The corners of the almost square wire rod 9 are cut to make it circular. A plurality of forming rollers 11 may be provided to make the wire even rounder, and a peeling die or surface polishing (grinding) may be applied to make the wire even more perfectly round.

なお複数の圧延ロール４．７において、第１の前方ロー
ル４は角溝２と突部３を９０°の角度にし、先端部にＲ
を形成するが、後方ロール７は角溝２と突部３とも９０
”より狭く、また突部の先端には鋭い歯先が形成されて
いる。またこの圧延ローラー４．７で金属板１に圧延す
る時は、前方圧延ロール４で大半圧延し、後方ロール７
では精度を必要とするので溝部６および凸状部５の角度
を鋭くし、溝部６の底に形成されたＲを取り除きさちに
鋭くえぐられる程度にし、圧下刃を少なくする。In addition, in the plurality of rolling rolls 4.7, the first front roll 4 has the square grooves 2 and the protrusions 3 at an angle of 90°, and has a radius at the tip.
However, the rear roll 7 has a square groove 2 and a protrusion 3 of 90
"It is narrower, and a sharp tooth tip is formed at the tip of the protrusion. Also, when rolling the metal plate 1 with this rolling roller 4.7, most of the rolling is done with the front rolling roll 4, and the rear roll 7 is rolled with the front rolling roll 4.
Since precision is required, the angles of the groove portion 6 and the convex portion 5 are made sharp, the radius formed at the bottom of the groove portion 6 is removed to the extent that it can be gouged sharply, and the number of rolling blades is reduced.

実施例では圧延ロールは２個設けたが、３個以上でも良
いことは勿論である。また実施例で、線材を交互に厚さ
方向において反対方向に引張り切り離したが、平面状す
なわち扇状に引っ張ることも可能である。Although two rolling rolls were provided in the embodiment, it goes without saying that three or more rolling rolls may be used. Further, in the embodiment, the wire rods were pulled alternately in opposite directions in the thickness direction to separate them, but it is also possible to pull the wire rods in a planar shape, that is, in a fan shape.

〔作用〕[Effect]

しかして本発明によれば、金属平板に圧延ロールで溝を
形成し、この溝を切り離すことにより線材を製造する方
法において、前方のロールで深（鋭角な溝を形成し、こ
の溝の底を後方のロールで鋭く形成し、凸部同志が薄い
皮膜により連結した状態とし、その後この溝６を切り離
すので、凸状部が線材になった時にほとんどパリが発生
することなく、各隅角部がほぼ直角に形成され、その後
の工程で行なう成形ロールに於いて線材にキズが発生す
ることなく、極めて表面が滑らかな金属線が得られる。However, according to the present invention, in a method of manufacturing a wire rod by forming grooves on a flat metal plate with rolling rolls and cutting the grooves, the front roll forms a deep (acute-angled groove) and the bottom of the groove is The grooves 6 are formed sharply with the rear roll, and the convex parts are connected by a thin film, and then the grooves 6 are separated, so that when the convex parts become wire rods, there is almost no breakage, and each corner is The metal wire is formed almost at right angles and has an extremely smooth surface without causing any scratches on the wire during the forming rolls performed in subsequent steps.

また大きな圧下刃を必要とする初めの溝の圧延は、角溝
および突部にＲを付けた前方のロールで行ない、精度を
必要とし、圧下刃を生じさせない圧延は後方のロールで
行なったので、後方ロールの突部に形成した歯先に荷重
が加わらず、歯先の寿命を長くするとともに連続運転を
可能にし、しかも運転スピードも向上するので、生産効
率も向上する。In addition, the rolling of the first groove, which required a large rolling edge, was carried out by the front roll with rounded grooves and protrusions, and the rolling, which required precision and did not produce a rolling edge, was carried out by the rear roll. Since no load is applied to the tooth tip formed on the protrusion of the rear roll, the life of the tooth tip is extended, continuous operation is possible, and the operating speed is also improved, so production efficiency is also improved.

〔効果〕〔effect〕

以上の通り本発明によれば、難加工金属でも表面の滑ら
かなキズのない金属線が、極めて生産効率良く製線する
ことが出来る効果を奏する。As described above, according to the present invention, it is possible to produce a metal wire with a smooth surface and no scratches even from difficult-to-process metals with extremely high production efficiency.

【図面の簡単な説明】[Brief explanation of drawings]

第１図イは本発明の方法を適用した装置の配置図、口、
ハ、二は金属板を線材にする断面図、第２図はその要部
拡大図、第３図は圧延ロールにより金属平板を圧延した
状態を示す断面図、第４図イは従来の方法により製作し
た線材を成形ロールにより成形した状態を示す断面図、
口はその従来例により製作した線材の斜視図である。Figure 1A is a layout diagram of a device to which the method of the present invention is applied;
C, 2 is a cross-sectional view of a metal plate turned into a wire rod, Figure 2 is an enlarged view of the main part, Figure 3 is a cross-sectional view showing a flat metal plate rolled by a rolling roll, and Figure 4 A is a cross-sectional view of a metal plate rolled by a conventional method. A cross-sectional view showing the state in which the produced wire rod is formed by forming rolls,
The opening is a perspective view of a wire manufactured according to the conventional example.

Claims

【特許請求の範囲】[Claims]

金属板の表裏両面に、圧延ロールにより、その長さ方向
に直線状の相対する溝を形成し、該溝を切り離すことに
より凸部を線材とする金属線の製造方法において、該圧
延ロールを複数個設置し、前方の圧延ロールで形成した
溝を、後方の圧延ロールでさらに鋭く鋭角に形成するこ
とを特徴とする金属線の製造方法。A method for manufacturing a metal wire in which linear opposing grooves are formed in the longitudinal direction of the metal plate on both sides of the metal plate using a rolling roll, and the grooves are cut to form a wire rod, in which a plurality of rolling rolls are used. A method for manufacturing a metal wire, characterized in that the grooves formed by the front rolling rolls are formed into even sharper and more acute angles by the rear rolling rolls.