JPH0432169Y2 - - Google Patents
Info
- Publication number
- JPH0432169Y2 JPH0432169Y2 JP1985098400U JP9840085U JPH0432169Y2 JP H0432169 Y2 JPH0432169 Y2 JP H0432169Y2 JP 1985098400 U JP1985098400 U JP 1985098400U JP 9840085 U JP9840085 U JP 9840085U JP H0432169 Y2 JPH0432169 Y2 JP H0432169Y2
- Authority
- JP
- Japan
- Prior art keywords
- cutter
- steel pipe
- induction heating
- cutting
- frequency induction
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 46
- 239000010959 steel Substances 0.000 claims description 46
- 238000005520 cutting process Methods 0.000 claims description 39
- 238000010438 heat treatment Methods 0.000 claims description 26
- 230000006698 induction Effects 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Shearing Machines (AREA)
- Accessories And Tools For Shearing Machines (AREA)
Description
【考案の詳細な説明】
(産業上の利用分野)
本考案は、ロータリーデイスクカツター式鋼管
走間切断装置に関する。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a rotary disc cutter type steel pipe running cutting device.
(技術的背景)
連続丸鋼管製造設備における1例としての製造
法は、熱延コイルから製造装置、溶接装置を経て
丸鋼管となし走間切断機にて切断し規定の管長さ
を得ている。従来、連続丸鋼管製造設備における
走間切断機は、小径管においては鋭利なV形刃形
で切断するプレス切断法、中径管以上の鋼管にお
いては、第2図に示すデイスクカツターと称され
る揺動可能なロツカーアームに取付けられた複数
個の丸形状の鋭利な刃物を被切断材へ強力に押し
つけ、さらにそのデイスクカツターを公転する回
転体で回転させて切断するものである。このロー
タリーデイスクカツター型走間切断機は走間にお
いて低騒音でしかも切削くずの発生なしに切断が
可能であるために数多く採用されてきた。(Technical background) An example of a manufacturing method in continuous round steel pipe manufacturing equipment is to create a round steel pipe from a hot-rolled coil through manufacturing equipment and welding equipment, and then cut it with a running cutting machine to obtain a specified pipe length. . Conventionally, running cutting machines used in continuous round steel pipe manufacturing equipment have used a press cutting method that uses a sharp V-shaped blade to cut small diameter pipes, and a disc cutter (as shown in Figure 2) for medium diameter pipes and larger pipes. A plurality of round sharp blades attached to a swingable rocker arm are strongly pressed against the material to be cut, and the disk cutter is further rotated by a revolving rotating body to cut the material. This rotary disc cutter type inter-travel cutting machine has been widely used because it can cut with low noise and without producing cutting waste during the inter-travel process.
しかしながら近年その鋼管の需要が肉厚増およ
び高抗張力鋼へとその材料強度が増し、しかも、
造管設備の中に配設されている溶接機の性能向上
にともない、その造管速度も高速化されつつあ
る。 However, in recent years, the demand for steel pipes has increased with increased wall thickness and high tensile strength steel, and
As the performance of welding machines installed in pipe-making equipment improves, the speed of pipe-making is also increasing.
したがつて、このような高速、高荷重の切断機
におけるデイスクカツターの摩耗は増大し、その
交換頻度は従来の2〜3倍に増え、しかも、溶接
機の性能が向上したことにより造管速度が早くな
り生産量が向上しているため、その高頻度の交換
は生産量へ及ぼす影響がきわめて大きい。 As a result, the wear of the disc cutter in such high-speed, high-load cutting machines increases, and the frequency of replacement of the disc cutter increases two to three times compared to conventional methods.Moreover, improvements in the performance of welding machines have made it easier to manufacture pipes. Since the speed is faster and the production volume is increasing, the high frequency of replacement has an extremely large effect on the production volume.
(従来の技術)
第2図は、デイスクカツター型走間切断機を示
し、連続丸鋼管製造設備で丸形に成形された鋼管
32は、連続的にデイスクカツター型切断機本体
を通つており、デイスクカツター1を配置したス
ピンドル17は、常時、スピンドル回転用のモー
ター2によりピニオンギヤー3を通して回転され
る。(Prior Art) Fig. 2 shows a disk cutter type running cutting machine, in which a steel pipe 32 formed into a round shape in continuous round steel pipe manufacturing equipment is continuously passed through the body of the disk cutter type cutting machine. The spindle 17 on which the disc cutter 1 is disposed is always rotated through a pinion gear 3 by a spindle rotation motor 2.
切断信号が入ると、切断機台車4は切断機台車
駆動モーター6を駆動し、ピニオンギヤー7を回
転させ、切断機台車4の下面に取付けられたラツ
ク13によつて鋼管32と速度を同期させる。同
期させた後、切断機台車4に取付けられた油圧駆
動によるクランプ装置16にて鋼管32を強固に
クランプする。その為切断機台車4は鋼管32と
一体的に係合される。その時点で油圧シリンダ1
8により、スピンドル17に対してカム部材1
7′を鋼管軸芯方向に移動し、該カム部材17′の
作用によりスピンドル17に軸支したロツカーア
ーム12を揺動させ、スライダーピン11を介し
てカツター台9、スライダー10およびカツター
取付台5を鋼管径方向に移動し、これによつてデ
イスカツター1が鋼管32の径方向へ移動して切
断が行なわれる。なお、8はカツター取付台5を
鋼管径に応じて開閉調整するためのスクリユー軸
である。 When a cutting signal is input, the cutting machine truck 4 drives the cutting machine truck drive motor 6, rotates the pinion gear 7, and synchronizes the speed with the steel pipe 32 by the rack 13 attached to the lower surface of the cutting machine truck 4. . After synchronization, the steel pipe 32 is firmly clamped by a hydraulically driven clamping device 16 attached to the cutting machine cart 4. Therefore, the cutter truck 4 is integrally engaged with the steel pipe 32. At that point, hydraulic cylinder 1
8, the cam member 1 is moved against the spindle 17.
7' in the axial direction of the steel pipe, the rocker arm 12 pivotally supported on the spindle 17 is swung by the action of the cam member 17', and the cutter base 9, slider 10, and cutter mounting base 5 are moved via the slider pin 11. The disc cutter 1 moves in the radial direction of the steel pipe 32, thereby causing the disc cutter 1 to move in the radial direction of the steel pipe 32 and perform cutting. Note that 8 is a screw shaft for adjusting the opening and closing of the cutter mount 5 according to the diameter of the steel pipe.
(考案が解決しようとする問題点)
近年、鋼管の需要が肉厚増および高抗張力鋼へ
とその材料強度を増しているため例えば抗張力
100Kg/mm2を越える鋼管においては、デイスクに
過大な荷重を掛けないと切断できなかつたり、過
大な荷重を掛けるとデイスクの破損を導き、また
切断できたとしてもデイスク寿命が極端に短かく
なり結果としてデイスクカツターの取替頻度が多
くなり生産量が低下する問題となつていた。(Problem that the invention aims to solve) In recent years, the demand for steel pipes has increased with increasing wall thickness and material strength, such as high tensile strength steel.
Steel pipes exceeding 100Kg/mm 2 cannot be cut unless an excessive load is applied to the disc, and applying an excessive load may lead to damage to the disc, and even if it can be cut, the life of the disc will be extremely shortened. As a result, the disc cutter has to be replaced more frequently, resulting in a reduction in production.
(問題点を解決するための手段)
本考案による鋼管の走間切断装置は、上記問題
点を解決するものであつて、走行する鋼管をクラ
ンプし、その鋼管と同じ速度で走行する切断機台
車上に、鋼管を切断するロータリーデイスクカツ
ターを搭載した鋼管の走間切断装置において、ロ
ータリーデイスクカツターと、リング状の高周波
誘導加熱コイルを有する高周波誘導加熱装置とを
鋼管軸芯方向で可及的に近接した位置に配列し、
そのロータリーデイスクカツターおよび高周波誘
導加熱装置を支持するカツター支持体と、そのカ
ツター支持体を鋼管軸芯方向に移動する移動シリ
ンダとを前記切断機台車上に設け、その移動シリ
ンダの移動ストロークが、ロータリーデイスクカ
ツター中心から高周波誘導加熱コイル中心までの
距離と等しくしてなることを特徴とするものであ
る。(Means for Solving the Problems) The steel pipe running cutting device according to the present invention solves the above problems, and is designed to clamp a traveling steel pipe and use a cutting machine trolley that travels at the same speed as the steel pipe. Above, in a steel pipe running cutting device equipped with a rotary disc cutter for cutting steel pipes, the rotary disc cutter and a high frequency induction heating device having a ring-shaped high frequency induction heating coil can be cut in the axial direction of the steel pipe. arranged in close proximity to each other,
A cutter support that supports the rotary disk cutter and the high-frequency induction heating device, and a moving cylinder that moves the cutter support in the direction of the steel pipe axis are provided on the cutting machine truck, and the moving stroke of the moving cylinder is It is characterized in that the distance is equal to the distance from the center of the rotary disc cutter to the center of the high frequency induction heating coil.
(作用)
本考案は、鋼管走行中に鋼管をクランプし、切
断部を加熱し、その加熱した部分の温度が最も高
い加熱中心部にロータリーデイスクカツターをク
イツクシフトさせ、鋼管を切断できる。(Function) The present invention can cut the steel pipe by clamping the steel pipe while the pipe is running, heating the cutting section, and quickly shifting the rotary disk cutter to the heating center where the temperature of the heated section is highest.
そのため、切断部が高温であるので、切削抵抗
が大幅に低下し、ロータリーデイスクカツター
は、軽負荷で短時間に極めて容易に切削できるよ
うになつた。 Therefore, since the cutting part is at a high temperature, the cutting resistance is significantly reduced, and the rotary disc cutter can now cut extremely easily in a short time with a light load.
(実施例)
第1図に本考案の実施例装置を示す。第1図に
おいて、切断機台車4上にリング状に形成した高
周波誘導加熱コイル22を有する高周波誘導加熱
装置Hおよびロータリーデイスクカツター34
を、それぞれ部材22′,19′を介してカツター
支持体33に設ける。この高周波誘導加熱コイル
とロータリーデイスクカツターの刃とは、カツタ
ー支持体の移動時間をできる限り短縮し、鋼管の
加熱温度を低下させないようにするため、鋼管軸
芯方向に可及的に近接した位置に配列する。本実
施例では、高周波誘導加熱装置およびロータリー
デイスクカツター間の間隔は、両者間に干渉がな
く、かつ、メインテナンスを考慮して例えば、
200mmとしてあり、このようにすれば移動時間は
約2秒と短時間で行なえる。そのカツター支持体
を切断機台車4に配設した支持体ガイド20上に
移動自在に設ける。そしてそのカツター支持体を
移動用シリンダー21によつて移動させる。その
移動用シリンダーの移動量は、高周波誘導加熱コ
イル中心とロータリーデイスクカツターのカツタ
ー中心との距離とほぼ同じにする。(Embodiment) FIG. 1 shows an embodiment of the present invention. In FIG. 1, a high frequency induction heating device H having a high frequency induction heating coil 22 formed in a ring shape on a cutting machine truck 4 and a rotary disk cutter 34 are shown.
are provided on the cutter support 33 via members 22' and 19', respectively. The high-frequency induction heating coil and the blade of the rotary disk cutter are placed as close as possible in the axial direction of the steel pipe in order to shorten the travel time of the cutter support as much as possible and prevent the heating temperature of the steel pipe from decreasing. Arrange in position. In this embodiment, the interval between the high-frequency induction heating device and the rotary disk cutter is set so that there is no interference between them, and in consideration of maintenance, for example,
It is 200mm, and in this way the movement time can be as short as about 2 seconds. The cutter support is movably provided on a support guide 20 disposed on the cutter truck 4. The cutter support is then moved by the moving cylinder 21. The amount of movement of the moving cylinder is approximately the same as the distance between the center of the high-frequency induction heating coil and the center of the rotary disk cutter.
スピンドル支持体19の外周にベアリングを介
してスピンドル17が回転自在に嵌装されてい
る。スピンドル17にはカツター取付台5を配置
し、該カツター取付台5にデイスクカツター1を
配設する。なお、第1図に示される移動装置(油
圧シリンダ)18、カム部材17′、ロツカーア
ーム12、カツター台9、スライダー10、スラ
イダーピン11、スクリユー軸8およびカツター
取付台5は、第2図において説明したのと同様で
あり、デイスクカツター1を鋼管の径方向へ移動
させて該鋼管の切断を行なう。 A spindle 17 is rotatably fitted on the outer periphery of the spindle support 19 via a bearing. A cutter mount 5 is disposed on the spindle 17, and a disk cutter 1 is disposed on the cutter mount 5. The moving device (hydraulic cylinder) 18, cam member 17', rocker arm 12, cutter stand 9, slider 10, slider pin 11, screw shaft 8, and cutter mount 5 shown in FIG. 1 are explained in FIG. The process is similar to that described above, and the disc cutter 1 is moved in the radial direction of the steel pipe to cut the steel pipe.
而して本考案は第1図に示すようにロータリー
デイスクカツター34の取付いているカツター支
持体33に、高周波誘導加熱装置Hを配設し、か
つそのカツター支持体33はカツター支持体ガイ
ド20と移動用シリンダー21によつて管の長手
方向に移動可能ならしめている。 Accordingly, in the present invention, as shown in FIG. 1, a high frequency induction heating device H is disposed on a cutter support 33 to which a rotary disk cutter 34 is attached, and the cutter support 33 is connected to a cutter support guide 20. It is made movable in the longitudinal direction of the tube by a moving cylinder 21.
すなわち、鋼管32と切断機台車4を同期さ
せ、クランプ装置16にてクランプするまでは、
従来のデイスクカツター型切断機と同じである
が、その後は高周波誘導加熱コイル22にて鋼管
32の切断部を適温まで加熱しその加熱完了後移
動シリンダー21によつて、カツター支持体33
を管長さ方向に移動させ、デイスクカツター1を
加熱部に移動させた後、油圧シリンダー18、ロ
ツカーアーム12、スライダー10およびスライ
ダー取付ピン11を介して、デイスクカツターは
鋼管の径方向へ閉じながら切断を行なう。 That is, until the steel pipe 32 and the cutting machine cart 4 are synchronized and clamped by the clamp device 16,
This is the same as the conventional disk cutter type cutting machine, but after that, the cut part of the steel pipe 32 is heated to an appropriate temperature by the high frequency induction heating coil 22, and after the heating is completed, the cutter support 33 is heated by the moving cylinder 21.
is moved in the pipe length direction and the disc cutter 1 is moved to the heating section, and then the disc cutter is closed in the radial direction of the steel pipe via the hydraulic cylinder 18, rocker arm 12, slider 10 and slider mounting pin 11. Make the cut.
(考案の効果)
(a) 今までのロータリーデイスクカツターでは、
切断不可能かもしくは、切断可能であつてもデ
イスクの破損が多い、肉厚が厚くしかも高抗張
力の鋼管が切断可能となり、騒音が少なくしか
も切粉発生がないため、ロータリーデイスクカ
ツターの用途が各段と広くなつた。(Effects of the invention) (a) With the conventional rotary disc cutter,
The rotary disc cutter can be used to cut thick, high tensile strength steel pipes that cannot be cut, or even if they can be cut, the discs often break.The rotary disc cutter can be used with less noise and generates no chips. Each step became wider.
(b) デイスクカツターの切断寿命が長くなるた
め、デイスクカツターの交換頻度が少なくなり
鋼管の生産性を大幅に向上させることが可能と
なつた。(b) Since the cutting life of the disc cutter is extended, the frequency of replacing the disc cutter is reduced, making it possible to significantly improve the productivity of steel pipes.
(c) 高周波誘導加熱コイルでの加熱時間を加えて
も、抗張力を低下させて切断時間を短縮させる
ことになりトータルで肉厚が厚くしかも高抗張
力の鋼管を短時間で切断することが可能となり
切断機能力の向上が計れる。(c) Even if heating time with a high-frequency induction heating coil is added, the tensile strength is reduced and the cutting time is shortened, making it possible to cut thick steel pipes with high tensile strength in a short time. Improved cutting ability can be measured.
(d) 高周波誘導加熱において周波数、加熱幅、加
熱時間を調整することで従来のデイスクカツタ
ー型では管端の絞り形状が問題となつている薄
肉厚の鋼管においても切断荷重を小さくしその
形状を改善することができる。(d) By adjusting the frequency, heating width, and heating time in high-frequency induction heating, the cutting load can be reduced and the cutting shape can be reduced even for thin-walled steel pipes, where the drawing shape at the pipe end is a problem with conventional disc cutter types. can be improved.
などの数多くの有利な特徴を有し、その効果は、
従来の切断装置に比較して顕著に有効である。It has many advantageous features such as
Significantly more effective than conventional cutting devices.
第1図aは、本発明実施例装置の縦断面図、同
bは第1図aのA−A断面図、第2図は従来のデ
イスクカツター式切断装置の縦断面図である。
H……高周波誘導加熱装置、1……デイスクカ
ツター、4……切断機台車、12……ロツカーア
ーム、14……切断機車輪、15……レール、1
6……クランプ装置、17……スピンドル、19
……スピンドル支持体、20……カツター支持体
ガイド、21……移動シリンダー、22……高周
波誘導加熱コイル、32……鋼管、33……カツ
ター支持体、34……ロータリーデイスクカツタ
ー。
FIG. 1a is a longitudinal cross-sectional view of a device according to an embodiment of the present invention, FIG. 1b is a cross-sectional view taken along line A-A in FIG. 1a, and FIG. H... High frequency induction heating device, 1... Disk cutter, 4... Cutting machine trolley, 12... Rocker arm, 14... Cutting machine wheel, 15... Rail, 1
6... Clamp device, 17... Spindle, 19
... spindle support, 20 ... cutter support guide, 21 ... moving cylinder, 22 ... high frequency induction heating coil, 32 ... steel pipe, 33 ... cutter support, 34 ... rotary disk cutter.
Claims (1)
度で走行する切断機台車上に、鋼管を切断するロ
ータリーデイスクカツターを搭載した鋼管の走間
切断装置において、 ロータリーデイスクカツターと、リング状の高
周波誘導加熱コイルを有する高周波誘導加熱装置
とを鋼管軸芯方向で可及的に近接した位置に配列
し、そのロータリーデイスクカツターおよび高周
波誘導加熱装置を支持するカツター支持体と、そ
のカツター支持体を鋼管軸芯方向に移動する移動
シリンダとを前記切断機台車上に設け、その移動
シリンダの移動ストロークが、ロータリーデイス
クカツター中心から高周波誘導加熱コイル中心ま
での距離と等しくしてなることを特徴とする鋼管
の走間切断装置。[Scope of Claim for Utility Model Registration] In a steel pipe running cutting device that clamps a traveling steel pipe and is equipped with a rotary disc cutter for cutting the steel pipe on a cutting machine truck that travels at the same speed as the steel pipe, a rotary disc A cutter and a high-frequency induction heating device having a ring-shaped high-frequency induction heating coil are arranged as close as possible in the axial direction of the steel tube, and a cutter support that supports the rotary disk cutter and the high-frequency induction heating device and a moving cylinder that moves the cutter support body in the direction of the steel pipe axis are provided on the cutting machine truck, and the moving stroke of the moving cylinder is equal to the distance from the center of the rotary disk cutter to the center of the high-frequency induction heating coil. A running cutting device for steel pipe, characterized in that it is made of equal parts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985098400U JPH0432169Y2 (en) | 1985-06-28 | 1985-06-28 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1985098400U JPH0432169Y2 (en) | 1985-06-28 | 1985-06-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS628025U JPS628025U (en) | 1987-01-19 |
JPH0432169Y2 true JPH0432169Y2 (en) | 1992-08-03 |
Family
ID=30966302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1985098400U Expired JPH0432169Y2 (en) | 1985-06-28 | 1985-06-28 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0432169Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3275581A1 (en) * | 2016-07-26 | 2018-01-31 | Aisapack Holding SA | Rotary knife for packaging-producing machine and method using said knife |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5225986A (en) * | 1975-08-22 | 1977-02-26 | Japan Steel Works Ltd:The | Alternatin pulse current genrating device |
JPS58109216A (en) * | 1981-12-24 | 1983-06-29 | Komatsu Ltd | Cutting method of steel material |
-
1985
- 1985-06-28 JP JP1985098400U patent/JPH0432169Y2/ja not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5225986A (en) * | 1975-08-22 | 1977-02-26 | Japan Steel Works Ltd:The | Alternatin pulse current genrating device |
JPS58109216A (en) * | 1981-12-24 | 1983-06-29 | Komatsu Ltd | Cutting method of steel material |
Also Published As
Publication number | Publication date |
---|---|
JPS628025U (en) | 1987-01-19 |
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