JPS6239108A - Pipe material cutting device - Google Patents

Abstract

PURPOSE:To prevent a cut section from deformation by charging powder (e.g., sand) inside a hollow material, pressurizing the powder material, giving stress from inside the pipe material, thereby cutting it in the state like a solid material. CONSTITUTION:While pipe material 1 is held by a holder, the lower pressurizing jig 6 is located at a preset position, and a predetermined amount of powder material 2 is supplied into the inside of pipe material through a hole 21 inside a rod 9 and through a valve at the lower pressurizing jig 8. Then the powder material 2 is pressurized with rods 7, 9 corresponding to jigs 6, 8 respectively. With this constitution, the pipe material 1 behaves like a solid material. The pipe material is cut in the condition with cutting blades 3, 4. A cut section is not deformed since the pipe material is cut in the state like a solid material.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は・孕イゾ材（中空鋼材）を切断するパイプ材
切断装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] This invention relates to a pipe material cutting device for cutting pregnant steel material (hollow steel material).

〔従来の技術〕[Conventional technology]

従来、パイプ材を切断刃により切断する際は、切断対象
となる・ぜイブ材を中空状態としたまま切断処理してい
た。Conventionally, when cutting pipe materials with a cutting blade, the cutting process was performed while the pipe material being cut was kept in a hollow state.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

このような従来の切断処理手段は切断速度が速く効率的
ではあるが、切断対象が中空材であることから、切断面
が変形し、例えば一対の切断刃で切断した場合、第５図
（ｂ）に示すように楕円状だ変形してしまう。そのため
、切断後の処理に多くの時間を要し、機械加工仕上げが
必要になる等の欠点があった。Although such conventional cutting processing means have a fast cutting speed and are efficient, since the object to be cut is a hollow material, the cut surface is deformed and, for example, when cut with a pair of cutting blades, the ), the elliptical shape is deformed. Therefore, there were disadvantages such as a long processing time required after cutting and a need for machining finishing.

〔問題点を解決するための手段および作用〕本発明は、
中空材の内部に粉体（例えば砂）を封入し、この粉体に
圧力をかけて・臂イデ材内部に応力を付加させ中実材と
同様な状態として、切断する切断装置構造としたもので
ある。[Means and effects for solving the problems] The present invention has the following features:
A cutting device with a structure in which powder (e.g. sand) is sealed inside a hollow material, and the powder is pressurized to add stress to the inside of the hollow material to create a state similar to that of a solid material and cut the material. It is.

〔実施例〕〔Example〕

第１図に本発明の一実施例を示す。図中、１は・譬イブ
材、２は粉体、３，４は切断刃、５゜１１は刃３．４の
シリンダ、１４．１５はこれらの架台、１２Ｆｉノｐイ
ブ材１のホルダ、１３はホルダ、架台、６は下部からの
圧下治具、７は口、ド、８は上部からの圧下治具、９は
ロッド、１６は圧下用ロッド７のシリンダ、Ｉ　７　、
１７’はシリンダ１６のストッ／母−，１ｇはシリンダ
１６の回転治具、２０はシリンダ１６の架台、１９は架
台２０の回転装置を示す。FIG. 1 shows an embodiment of the present invention. In the figure, 1 is the pipe material, 2 is the powder, 3 and 4 are the cutting blades, 5°11 is the cylinder of the blade 3.4, 14.15 is a stand for these, a holder for the 12Fi pipe material 1, 13 is a holder, a frame, 6 is a rolling jig from below, 7 is a mouth, 8 is a rolling jig from above, 9 is a rod, 16 is a cylinder of the rolling rod 7, I 7 ,
Reference numeral 17' indicates a stop/base of the cylinder 16, 1g indicates a rotating jig for the cylinder 16, 20 indicates a stand for the cylinder 16, and 19 indicates a rotating device for the stand 20.

図の様に、ホルダ１２で・母イブ材１を保持し、下部圧
下治具６が所定の位置でストップする。As shown in the figure, the base material 1 is held by the holder 12, and the lower rolling jig 6 is stopped at a predetermined position.

・やイブ材１に所定量ｔだけ粉体を封入したのち、上部
圧下治具８と下部圧下治具６にて粉体に圧力を付加する
。圧力付加した状態で切断刃３゜４にて・母イブ材１を
切断する。切断したら図中ダッシュ記号で示すように、
下部圧下治具６、ロッド７が下降し、架台２０が回転装
置１９にて回転する。反転したら、シリンダ１６′の回
転治具１８にて、シリンダ１６を・母イブ材１′ごと反
転させ、切断したノ４イブ材１′と内部に入っていた粉
体２をロッド７、治具６からはずす。この下方に・母イ
ブ材１の搬送装置と粉体２の回収装置を配置しておけば
良い。After a predetermined amount t of powder is sealed in the tube material 1, pressure is applied to the powder using the upper rolling jig 8 and the lower rolling jig 6. Cut the base material 1 with the cutting blade 3°4 while applying pressure. After cutting, as shown by the dash symbol in the diagram,
The lower lowering jig 6 and the rod 7 are lowered, and the pedestal 20 is rotated by the rotating device 19. After it is turned over, the cylinder 16 and the base material 1' are turned over using the rotating jig 18 of the cylinder 16', and the cut No. 4 tube material 1' and the powder 2 contained inside are transferred to the rod 7 and the jig. Remove from 6. It is sufficient to arrange a conveyance device for the base material 1 and a recovery device for the powder 2 below this.

・４イデ材と粉体をはずしたら回転治具１８でシリンダ
１６を回転させて元の状態にもどし、次の切断に備える
。この圧下治具一式６，７゜１６．１７．１８を架台２
０に、複数個配しておけば能率が良い。- After removing the 4-ide material and the powder, rotate the cylinder 16 with the rotating jig 18 to return it to its original state and prepare for the next cutting. This rolling jig set 6,7゜16,17,18 is attached to the mount 2.
It is efficient to place multiple units at 0.

次に上部圧下治具８と粉体の供給手段を第２図にて説明
する。圧下治具８の内部に・ぐルブ１０を内蔵しておく
。またロッド９の内部に粉体供給用の孔２１を設けてお
く。バルブ１ｏの作用にて、孔２ノとバルブ１０の孔が
通じれば粉体２は落下するし、・ぐルプｌ０ＶＣて孔２
１を閉じれば粉体２は落下しない。この粉体落下量は切
断に必要な量だけ制御しておけば良い。これにより、切
断に必要な粉体量ｔは最小限に抑えることができる。ま
た粉体供給手段も簡単である。Next, the upper rolling jig 8 and powder supply means will be explained with reference to FIG. A groove 10 is built inside the rolling jig 8. Further, a hole 21 for powder supply is provided inside the rod 9. Due to the action of the valve 1o, if the hole 2 and the hole of the valve 10 communicate with each other, the powder 2 will fall.
If 1 is closed, powder 2 will not fall. It is sufficient to control the amount of falling powder by the amount necessary for cutting. Thereby, the amount t of powder required for cutting can be minimized. Furthermore, the means for supplying the powder is simple.

第３図、第４図は切断部の詳細図を示し、第３図は正面
断面図、第゛４図は側面図を示す。FIGS. 3 and 4 show detailed views of the cutting section, with FIG. 3 showing a front sectional view and FIG. 4 showing a side view.

〔発明の効果〕〔Effect of the invention〕

以上のように本発明によれば、・９イゾ材に粉体圧力、
を付加させているので中実材と同様になシ、切断刃によ
シ切断しても良好な切断が行なえ、切断面も第５図（ａ
）のように、きれいである。As described above, according to the present invention, powder pressure is applied to the 9 iso material,
Because of the addition of the
), as in, clean.

又、上記した本発明の装置を用いれば連続化、自動化が
容易に行なえ生産能率が向上するつFurthermore, by using the above-mentioned apparatus of the present invention, continuity and automation can be easily performed, and production efficiency can be improved.

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

第１図は本発明の一実施例構成図、第２図は上記実施例
に於ける粉体供給機構を示す図、第３図及び第４図は上
記実施例圧於ける切断部の詳細図、第５図（ａ）　、　
（ｂ）はそれぞれ切断面形状例を示す図である。 １・・・・９イデ材、２・・・粉体、３，４・・・切断
刃、５．１１・・・シリンダ、６，８・・・圧下治具、
７゜９・−・ロッド、１０…パルプ、１２・・・ホルダ
、１　、？・・・ホルダ架台、１４ｍ１５，２ｏ・・・
架台、１６・・・シリンダ、１７・・・ストッＩＪ？＋
＋、Ｉｇ・・・回転治具、１９・・・回転装置。 出願人復代理人　　弁理士　鈴　江　武　彦第４図 第５図 第１図 第２図 第３図Fig. 1 is a configuration diagram of an embodiment of the present invention, Fig. 2 is a diagram showing the powder supply mechanism in the above embodiment, and Figs. 3 and 4 are detailed diagrams of the cutting section in the above embodiment. , Figure 5(a),
(b) is a diagram showing an example of the shape of each cut surface. 1...9 ide material, 2... powder, 3, 4... cutting blade, 5.11... cylinder, 6, 8... rolling jig,
7゜9...Rod, 10...Pulp, 12...Holder, 1,? ...Holder frame, 14m15, 2o...
Frame, 16...Cylinder, 17...Stock IJ? +
+, Ig... Rotating jig, 19... Rotating device. Applicant Sub-Agent Patent Attorney Takehiko Suzue Figure 4 Figure 5 Figure 1 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] パイプ材切断装置に於いて、切断対象となるパイプ材の
被切断部中空内に粉体を封入し加圧する機構を備え、同
機構により被切断部中空内に粉体を封入し加圧した状態
で上記パイプ材を切断することを特徴としたパイプ材切
断装置。A pipe material cutting device is equipped with a mechanism that seals powder in the hollow part of the pipe material to be cut and pressurizes it, and the state in which the powder is sealed and pressurized in the hollow part of the pipe material to be cut by the mechanism. A pipe material cutting device characterized in that the above-mentioned pipe material is cut with.