JP2007167894A - Method and device for guiding front end of extruded product - Google Patents
Method and device for guiding front end of extruded product Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 235000012438 extruded product Nutrition 0.000 title claims description 178
- 238000001125 extrusion Methods 0.000 claims abstract description 135
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 238000000926 separation method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 238000002788 crimping Methods 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000005452 bending Methods 0.000 description 14
- 238000005520 cutting process Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011796 hollow space material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
Description
本発明は、アルミニウム又はアルミニウム合金等の金属材料の押出成形において、押出開始時における押出製品の先端部を押出直後から押出方向に真直ぐに誘導し、該先端部に有害な曲がりや変形が生じるのを防止する先端誘導方法及び同誘導装置に関する。 In the extrusion molding of a metal material such as aluminum or aluminum alloy, the present invention guides the tip of the extruded product straight at the start of extrusion straightly in the extrusion direction from immediately after the extrusion, and harmful bending or deformation occurs at the tip. The present invention relates to a tip guiding method and a guiding device for preventing the above.
尚、本明細書において、前および後の語は、押出製品の押出方向を基準として用いるものとする。また、アルミニウムの語は、その合金を含む意味で用いる。 In the present specification, the terms before and after are used on the basis of the extrusion direction of the extruded product. Further, the term aluminum is used to include the alloy.
特に、プラー装置を装備しない押出プレスによるアルミニウム材の押出成形においては、プラーによる強制的な製品誘導が無いために、押出製品に曲がりを生じ易い。この曲がりを生じると、押出後の製品がプレス後面設備のランアウトテーブル上から大きくコースアウトしてしまう問題を生じる。押出途上におけるこのような問題を回避するために、従来一般的には押出プレスのエンドプラテンの出口近傍位置から押出方向に多数のV字形等の誘導ローラを配置し、その誘導ローラ上に製品を案内することで、上記のようなランアウトテーブルからの製品のコースアウト防止をはかるものとしている。 In particular, in extrusion molding of an aluminum material by an extrusion press that is not equipped with a puller device, there is no forced product induction by the puller, and thus the extruded product is likely to be bent. When this bend occurs, there is a problem that the extruded product is largely out of the course on the run-out table of the press rear surface equipment. In order to avoid such problems during extrusion, a number of V-shaped induction rollers are generally arranged in the extrusion direction from the position near the exit of the end platen of the extrusion press, and the product is placed on the induction roller. By guiding, the product is prevented from going out of the course from the run-out table.
しかしながら、上記誘導ローラによる押出製品の曲がり防止は、押出初期の所謂製品頭出し時に発生する先端部の曲がり、その他の変形に対しては対処し得ない。押出初期の製品頭出し時の曲がりや変形は、製品の肉厚分布の差や形状等によって生じるほかに、押出初期段階では未だメタルフローが安定していないことにより、ダイスから押出されてきた直後に比較的大きな曲がりや変形として表れる。このような製品の先端部の著しい曲がりや変形は、やはり上述のようなランアウトの原因になるのみならず、前方に配置されたフライングカット切断機の切断金型に製品の先端部を正しくクランプできなくなるというような問題を派生する。 However, the prevention of the bending of the extruded product by the guide roller cannot cope with the bending of the tip portion generated at the time of so-called product cueing at the initial stage of extrusion and other deformations. Bending and deformation at the time of cueing the product in the initial stage of extrusion are caused by the difference in the thickness distribution and shape of the product, and the metal flow is not stable in the initial stage of extrusion. Appears as a relatively large bend or deformation. Such significant bending and deformation of the tip of the product not only causes the above-mentioned runout, but also correctly clamps the tip of the product to the cutting die of the flying cut cutting machine placed in front. Deriving the problem of disappearing.
そこで、従来、このような問題対策として、一般的には、押出し初期の段階での押出しを低速押出しで行ない、押出した製品が真直ぐに安定した状態で押出されるようになってきたところで、一旦押出プレスを停止し、製品の先端曲がり部分を切断除去したのち、正規の自動運転に切替えるという格別の頭出し作業を行っている。 Therefore, conventionally, as a countermeasure for such a problem, generally, the extrusion at the initial stage of extrusion is performed by low-speed extrusion, and the extruded product has been extruded in a straight and stable state. A special cueing operation is performed in which the extrusion press is stopped, the bent portion of the product is cut and removed, and then the automatic operation is switched to normal operation.
このような頭出し作業では、初期押出しを低速で行わなければならないことに加えて、先端から数メートルにも及ぶ製品の先端曲がり部分を切除しなければならないために、スクラップ量の増大という不利益をもたらし、作業性、生産性の面で好ましいものではなかった。 In such a cueing work, in addition to having to perform initial extrusion at a low speed, it is necessary to cut off the bent part of the product that extends several meters from the tip. It was not preferable in terms of workability and productivity.
従来、上記のような製品頭出し作業上の不利益に対し、これを回避する改善策に、下記特許文献１に示すような押出製品先端部の強制的誘導装置が提案されている。
この先行提案に係る製品誘導装置及び製品誘導方法は、押出製品の先端を前方のプラー設備に向けて正しく導くことができる点では有効であるものの、押出しダイスから出てきた直後に既に発生する製品先端部の曲がりや変形を防止しうるものではなく、依然として製品先端の曲がり部によるスクラップ発生量を十分に削減しうるものではなかった。のみならず、後面設備として製品速度と同調して製品切断を行うフライングカット切断機が装備され、それ故にプラー設備を装備し得ないタイプの押出設備では、上記誘導装置の適用が困難であり、プラー設備を有しない押出設備をもって押出先頭部から全長に亘って良好な真直度と形状精度を有する製品を安定生産することは困難であった。 Although the product guiding apparatus and the product guiding method according to the preceding proposal are effective in that the leading end of the extruded product can be correctly guided toward the front puller equipment, the product already generated immediately after coming out of the extrusion die. It was not possible to prevent bending or deformation of the tip, and it was still not possible to sufficiently reduce the amount of scrap generated by the bent part of the product tip. As well as the rear equipment, which is equipped with a flying cut cutting machine that cuts the product in synchronism with the product speed, and therefore it is difficult to apply the induction device in the type of extrusion equipment that cannot be equipped with puller equipment, It has been difficult to stably produce products having good straightness and shape accuracy over the entire length from the extrusion head with an extrusion facility that does not have a puller facility.
本発明は、上記のような従来技術の背景に鑑み、押出プレスの運転を一旦停止して行なう厄介な製品頭出し作業を不要とし、押出初期からの自動運転を可能にすることによって生産性の向上をはかり得ると共に、押出し初期の押出製品先端部の曲がりの発生を確実に防止し得て、実質的な製品歩留まりの向上をはかり得る、押出製品の先端誘導方法、およびそのための誘導装置を提供することを目的とする。 In view of the background of the prior art as described above, the present invention eliminates the troublesome product cueing operation that is performed by temporarily stopping the operation of the extrusion press, and enables the automatic operation from the initial stage of the extrusion. Provided is a method for guiding the tip of an extruded product, and a guiding device therefor, which can measure the improvement and can surely prevent the bending of the tip of the extruded product at the beginning of extrusion, thereby substantially improving the product yield. The purpose is to do.
本発明は、押出ダイスから出てきた直後から製品先端を、該製品の断面形状と相似形状の嵌合部をもつ製品先端ホルダーで拘束状態に保持し、該ホルダーを押出方向に直進させることにより、押出製品を先端部を含めて真直ぐに誘導するようにしたものであり、これの更に具体的な構成を列記すれば次のとおりである。 The present invention holds the product tip immediately after coming out of the extrusion die in a restrained state by a product tip holder having a fitting portion similar in shape to the cross-sectional shape of the product, and moves the holder straight in the extrusion direction. The extruded product is straightly guided including the tip, and more specific configurations thereof are listed as follows.
［１］押出製品の内周面形状および／または外周面形状に適合する凸状および／または凹状嵌合部を有する押出製品先端ホルダーを用い、
該押出製品先端ホルダーを押出ダイスの出口に当接または近接状態に配置して押出操作を開始し、押出製品の先端部を押出直後に前記押出製品先端ホルダーに嵌合状態にホールドさせるものとし、
以降、押出製品に同調して前記押出製品先端ホルダーを押出方向に直進移動せしめるものとすることを特徴とする押出製品の先端誘導方法。
[1] Using an extruded product tip holder having a convex and / or concave fitting portion that conforms to the inner peripheral surface shape and / or outer peripheral surface shape of the extruded product,
The extrusion product tip holder is placed in contact with or close to the outlet of the extrusion die to start the extrusion operation, and the tip of the extrusion product is held in a fitted state in the extrusion product tip holder immediately after extrusion.
Thereafter, the method of guiding the tip of the extruded product, wherein the extruded product tip holder is moved linearly in the extrusion direction in synchronization with the extruded product.
［２］エンドプラテンの前方位置で、押出製品の先端部よりも後方部位を誘導ローラで支承せしめたのち、
前記押出製品先端ホルダーを押出速度を超える速度で前方に直進移動して先端ホルダーを押出製品から引き離し、
次いで、前記押出製品先端ホルダーを押出製品と干渉しない退機位置に退避移動させることを特徴とする前項１に記載の押出製品の先端誘導方法。
[2] At the front position of the end platen, after supporting the rear part from the tip of the extruded product with a guide roller,
The extruded product tip holder moves straight forward at a speed exceeding the extrusion speed to pull the tip holder away from the extruded product,
Next, the method for guiding the tip of an extruded product according to the preceding item 1, wherein the extruded product tip holder is retracted to a retracted position where it does not interfere with the extruded product.
［３］押出製品の押出しに伴う押動作用を利用して、押出製品先端ホルダーを前方に押出製品と同調移動せしめる前項１または２に記載の押出製品の先端誘導方法。 [3] The method for guiding the tip of an extruded product according to the preceding item 1 or 2, wherein the tip end holder of the extruded product is moved forward in synchronization with the extruded product by using the pushing operation associated with the extrusion of the extruded product.
［４］前記押出製品先端ホルダーは、押出軸線上に位置せしめたサポートバーを介して、エンドプラテンの前方位置に配置された誘導レール上を押出方向に走行する走行台車に連結保持せしめ、該走行台車と一体的に直進移動させる前項１〜３のいずれか１項に記載の押出製品の先端誘導方法。 [4] The extruded product tip holder is connected and held to a traveling carriage that travels in the extrusion direction on a guide rail disposed in front of the end platen via a support bar positioned on the extrusion axis. 4. The method for guiding the tip of an extruded product according to any one of items 1 to 3, wherein the tip is linearly moved integrally with the carriage.
［５］前記走行台車は、押出方向と直交する方向に配置された退避レール上を走行移動可能な可動台上に装備し、
該可動台を移動せしめることにより、前記押出製品先端ホルダーを退避移動させる前項４に記載の押出製品の先端誘導方法。
[5] The traveling carriage is equipped on a movable carriage that can travel and move on a retraction rail disposed in a direction orthogonal to the pushing direction.
5. The method for guiding the tip of an extruded product according to the preceding item 4, wherein the extruded product tip holder is retracted by moving the movable table.
［６］押出製品が中空管状製品であり、
これに対応して前記押出製品先端ホルダーが、押出製品の中空部と相似形で該中空部内にしっくりと嵌合される凸状嵌合部と、押出製品の先端面に当接するフランジ面とを有するものとなされている前項１〜５のいずれか１項に記載の押出製品の先端誘導方法。
[6] The extruded product is a hollow tubular product,
Correspondingly, the extruded product tip holder has a convex fitting portion that is similar to the hollow portion of the extruded product and fits snugly into the hollow portion, and a flange surface that comes into contact with the tip surface of the extruded product. Item 6. The method for guiding the tip of an extruded product according to any one of items 1 to 5 above.
［７］押出製品の内周面形状および／または外周面形状に適合する凸状および／または凹状嵌合部を有する押出製品先端ホルダーと、
該押出製品先端ホルダーを、押出製品の押出しに伴って、押出方向に直進移動させる直進移動制御機構とを備え、
前記押出製品先端ホルダーは、押出し開始にあたって、エンドプラテンのプラテンホール及びボルスタの中空部を通って、押出ダイスの押出孔に臨んでその近接位置に配置しうるものとなされていることを特徴とする押出製品の先端誘導装置。
[7] An extruded product tip holder having a convex and / or concave fitting portion that conforms to the inner peripheral surface shape and / or outer peripheral surface shape of the extruded product;
A linear movement control mechanism that linearly moves the extruded product tip holder in the extrusion direction as the extruded product is extruded;
The extruded product tip holder can be disposed in the proximity of the extrusion hole of the extrusion die through the platen hole of the end platen and the hollow portion of the bolster at the start of extrusion. Extrusion product tip guidance device.
［８］押出製品の内周面形状および／または外周面形状に適合する凸状および／または凹状嵌合部を有する押出製品先端ホルダーと、
該押出製品先端ホルダーを、押出製品の押出しに伴って、押出方向に直進移動させる直進移動制御装置と、
エンドプラテンの前方位置で、押出製品の先端部よりも後方部位を下方から支承する誘導ローラ装置と、
前記誘導ローラで押出製品を支承せしめたのち、前記押出製品先端ホルダーを押出速度を超える速度で前方に直進移動させる引き離し駆動装置と、
前記引離し駆動装置の駆動によって押出製品先端ホルダーを押出製品先端から引き離したのち、押出製品先端ホルダーを押出製品と干渉しない待機位置に退避せしめるべく移動させる退避駆動装置とを備え、
前記押出製品先端ホルダーは、押出し開始にあたって、エンドプラテンのプラテンホール及びボルスタの中空部を通って、押出ダイスの押出孔に臨んでその近接位置に配置しうるものとなされていることを特徴とする押出製品の先端誘導装置。
[8] An extruded product tip holder having a convex and / or concave fitting portion that conforms to the inner peripheral surface shape and / or outer peripheral surface shape of the extruded product;
A linear movement control device that linearly moves the extruded product tip holder in the extrusion direction as the extruded product is extruded;
A guide roller device for supporting a rear part from below at the front position of the end platen from the front end of the extruded product;
A pulling drive device for supporting the extruded product with the guide roller and then moving the extruded product tip holder straight forward at a speed exceeding the extrusion speed;
A retracting drive device for moving the extruded product tip holder to retract to a standby position where it does not interfere with the extruded product after separating the extruded product tip holder from the extruded product tip by driving the pulling drive device;
The extruded product tip holder can be disposed in the proximity of the extrusion hole of the extrusion die through the platen hole of the end platen and the hollow portion of the bolster at the start of extrusion. Extrusion product tip guidance device.
［９］押出製品先端ホルダーは、中空管状の押出製品に対応するものであって、
押出製品の中空部と相似形で該中空部内にしっくりと嵌合される凸状嵌合部と、押出製品の先端面に当接するフランジ面とを有する前項７または８に記載の押出製品の先端誘導装置。
[9] The extruded product tip holder corresponds to a hollow tubular extruded product,
9. The tip of the extruded product according to the above item 7 or 8, which has a convex fitting part that is similar to the hollow part of the extruded product and fits snugly into the hollow part, and a flange surface that comes into contact with the tip surface of the extruded product. Guidance device.
［１０］前記直進移動制御装置は、エンドプラテンの前方位置に配置された誘導レールと、該誘導レール上を押出方向に走行する走行台車と、前記押出製品先端ホルダーと走行台車とを一体的に連結するサポートバーとを備える前項７または８に記載の押出製品の先端誘導装置。 [10] The linear movement control device integrally includes a guide rail disposed at a position in front of the end platen, a travel cart that travels on the guide rail in an extruding direction, and the extruded product tip holder and the travel cart. 9. An extruded product tip guide device according to item 7 or 8, comprising a support bar to be connected.
［１１］前記誘導ローラは、Ｖ字状に配置された１対の棒状単位ローラと、該ローラを押出製品に干渉しない待機位置と押出製品を支承する支承位置との間で昇降移動せしめる昇降駆動装置とからなる前項８〜１０のいずれか１項に記載の押出製品の先端誘導装置。 [11] The guide roller is a lift drive that moves up and down between a pair of bar-shaped unit rollers arranged in a V shape and a standby position where the rollers do not interfere with the extruded product and a support position where the extruded product is supported. 11. The extruded product tip guiding device according to any one of items 8 to 10 above, comprising an apparatus.
［１２］前記引離し駆動装置は、前記走行台車の前端に連結された直動式シリンダーを備え、前記誘導ローラ装置によって押出製品が支承された後に前記シリンダーのロッドを押出速度を超える速度で前方に引き込み作動せしめるものとなされている前項８〜１１のいずれか１項に記載の押出製品の先端誘導装置。 [12] The pulling drive device includes a direct acting cylinder connected to a front end of the traveling carriage, and after the extruded product is supported by the guide roller device, the rod of the cylinder is moved forward at a speed exceeding the extrusion speed. The tip guide device for an extruded product according to any one of the preceding items 8 to 11, which is adapted to be pulled into and operated.
［１３］前記退避駆動装置は、前記直進移動制御装置及び引き離し駆動装置を搭載した可動台と、押出方向と直交する方向に配置された可動台走行用の退避レールと、前記可動台を退避方向に駆動する直動式の退避駆動シリンダーとを備え、前記引き離し駆動装置を駆動して押出製品先端ホルダーが押出製品先端から引き離された後、前記退避駆動シリンダーが作動して、押出製品先端ホルダーを押出製品と干渉しない退機位置に退避せしめるものとなされている前項１０〜１２のいずれか１項に記載の押出製品の先端誘導装置。 [13] The retraction driving device includes a movable table on which the linear movement control device and the separation driving device are mounted, a retraction rail for moving the movable table arranged in a direction orthogonal to the pushing direction, and a retraction direction of the movable table. A direct-acting retraction drive cylinder that is driven by the actuator, and after the extruding product tip holder is separated from the end of the extruded product by driving the separating drive device, the retracting drive cylinder is operated to 13. The extruded product leading-edge guide device according to any one of the above items 10 to 12, wherein the extruded product is retracted to a retracted position that does not interfere with the extruded product.
［１４］前項１〜６のいずれか１項に記載の先端誘導方法を押出工程に含むことを特徴とする押出製品の製造方法。 [14] A method for producing an extruded product, which comprises including the tip guiding method according to any one of items 1 to 6 in the extrusion step.
前記［１］の押出製品の先端誘導方法によれば、押出製品が押出ダイスの押出口から出てきた直後に、当該製品の内周面形状および／または外周面形状に適合する凸状または凹状嵌合部を備えた製品先端ホルダーの上記嵌合部に製品先端部を嵌合状態にホールド、つまり保持させて押出方向に直進誘導するので、押出製品の先端部に曲がりを発生する機会を与えることなく前方に真直ぐに誘導することができる。従って、製品の先端から後続する部分に亘って曲がりのない製品を得ることができ、先端曲がり部の切除に伴うスクラップの発生量を削減して、製品歩留まりを極限まで向上することができる。 According to the method for guiding the tip of an extruded product of [1] above, a convex shape or a concave shape conforming to the inner peripheral surface shape and / or the outer peripheral surface shape of the product immediately after the extruded product comes out from the extrusion port of the extrusion die. Since the product tip is held in the above-mentioned fitting portion of the product tip holder with the fitting portion, that is, held and held and guided in the straight direction in the extrusion direction, there is an opportunity to bend the tip of the extruded product. And can be guided straight forward without Therefore, it is possible to obtain a product that does not bend from the tip of the product to the subsequent portion, reduce the amount of scrap generated due to the cutting of the bent portion of the tip, and improve the product yield to the limit.
前記［２］の押出製品先端誘導方法によれば、押出製品が押出し初期の頭出し過程で既に真直ぐに押出されるのに加えて、頭出し過程を終わって安定した押出し状態に至った段階でそのまま定速押出しを継続しながら、先端ホルダーを押出製品に干渉しない退機位置に退避移動させるので、従来のように頭出し作業のために押出プレスを一旦停止させる必要がなく、押出初期の段階からスピードを上げて連続的にかつ自動押出しすることが可能となる。その結果、押出能率の向上、ひいては製品の生産性の向上、頭出し作業の省力化をはかることができる。 According to the extruded product tip guiding method of the above [2], in addition to the extruded product being extruded straight in the cueing process at the initial stage of extrusion, the cueing process is finished and a stable extruded state is reached. While continuing the constant speed extrusion, the tip holder is retracted to the retraction position where it does not interfere with the extruded product, so there is no need to temporarily stop the extrusion press for cueing work as in the past. It is possible to continuously and automatically extrude at a higher speed. As a result, it is possible to improve the extrusion efficiency, thereby improving the productivity of the product and saving labor in the cueing work.
前記［３］の先端誘導方法によれば、先端ホルダーを押出製品の先端で押動させることにより、押出速度に同調して前方に直進させるので、同調移動に格別の動力を用いる必要がないのはもとより、押出製品の先端面の不均整を先端ホルダーによって矯正する作用も期待でき、愈々製品歩留りの向上に寄与しうる。 According to the tip guiding method of [3], since the tip holder is pushed by the tip of the extruded product, it moves straight forward in synchronism with the extrusion speed, so there is no need to use special power for the synchronized movement. In addition, it can be expected to correct the unevenness of the tip surface of the extruded product with the tip holder, which can often contribute to an improvement in product yield.
前記［４］の先端誘導方法によれば、押出製品先端ホルダーを確実に押出方向に直進移動させることができる。 According to the tip guiding method of [4], the extruded product tip holder can be surely moved straight in the pushing direction.
前記［５］の先端誘導方法によれば、先端ホルダーの退避動作を円滑かつ確実に行わせることができ、運転トラブルの発生を回避しうる。 According to the tip guiding method of [5], the retracting operation of the tip holder can be performed smoothly and reliably, and the occurrence of driving troubles can be avoided.
前記［６］の先端誘導方法によれば、中空管状押出製品の押出成形において、押出初期から先端部に曲がりのない製品の押出しを円滑に行うことができる。 According to the tip guiding method of [6], in the extrusion molding of a hollow tubular extruded product, it is possible to smoothly extrude a product without bending at the tip from the beginning of extrusion.
前記［７］の押出製品の先端誘導装置によれば、前記［１］項に記載の誘導方法を円滑かつ確実に遂行しうる。 According to the extruded product tip guiding apparatus of [7], the guiding method described in [1] can be performed smoothly and reliably.
前記［８］の先端誘導装置によれば、前記［２］項に記載の誘導方法を円滑かつ確実に遂行しうる。 According to the tip guidance apparatus of [8], the guidance method described in [2] can be smoothly and reliably performed.
前記［９］項の先端誘導装置によれば、前記［６］項に記載の誘導方法を円滑かつ確実に遂行しうる。 According to the tip guidance device of the above [9] paragraph, the guidance method of the above [6] paragraph can be smoothly and reliably performed.
前記［１０］項の先端誘導装置によれば、前記［４］項に記載の誘導方法を円滑かつ確実に行うことができる。 According to the tip guidance device of the above [10] term, the guidance method given in the above [4] term can be performed smoothly and reliably.
前記［１１］項に記載の先端誘導装置によれば、先端ホルダーを退避せしめる際に押出製品を安定良く支承し、製品に有害影響を及ぼすことなく上記退避動作を円滑に行わせることができる。 According to the tip guide device described in the above item [11], when the tip holder is retracted, the extruded product is stably supported, and the retracting operation can be smoothly performed without adversely affecting the product.
前記［１２］項の先端誘導装置によれば、前記［２］項に記載の誘導方法における先端ホルダーの引き離し動作を、円滑かつ確実に行うことができる。 According to the tip guide device of the above item [12], the tip holder pulling-off operation in the guide method described in the item [2] can be performed smoothly and reliably.
前記［１３］項の先端誘導装置によれば、前記［５］項に記載の誘導方法における先端ホルダーの退避動作を、円滑かつ確実に行うことができる。 According to the tip guide device of the above item [13], the retracting operation of the tip holder in the guide method described in the above item [5] can be performed smoothly and reliably.
前記［１４］の製造方法によれば、先端部に曲がりのない押出製品を効率良く製造することができる。 According to the production method of [14], an extruded product without bending at the tip can be efficiently produced.
次に、この発明の好ましい実施形態について、添附図面を参照しつつ説明する。 Next, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
図１は本発明に係る押出製品先端誘導装置の全体構成を示す側面視による説明図である。 FIG. 1 is a side view showing the overall configuration of an extruded product tip guide device according to the present invention.
この図示の装置は、アルミニウム材による断面円形の中空製品、即ちパイプ状製品を製造する場合を例示するものである。 This illustrated apparatus exemplifies the case of producing a hollow product having a circular cross section made of an aluminum material, that is, a pipe-shaped product.
押出プレス（１）は、コンテナ（２）に装填されたアルミニウムピレット（３）をダミー（４）を介してステム（５）で押圧し、コンテナ（２）の前端に設けた雌雄金型（６ａ）（６ｂ）の組合せからなるポートホール型ダイス（６）により、所定の中空管状の押出製品（７）を押出成形するものである。押出ダイス（６）の前面側には、ボルスタ（８）、エンドプラテン（９）が設けられ、該エンドプラテン（９）の後面側にはプレッシャ−リング（１０）が配設されている。 The extrusion press (1) is a male and female mold provided at the front end of a container (2) by pressing an aluminum pyret (3) loaded in the container (2) with a stem (5) through a dummy (4). A predetermined hollow tubular extruded product (7) is extruded by a porthole die (6) comprising a combination of 6a) and (6b). A bolster (8) and an end platen (9) are provided on the front side of the extrusion die (6), and a pressure ring (10) is provided on the rear side of the end platen (9).
本発明に係る製品先端誘導装置は、その主要部材の１つとして、押出製品（７）を、押出ダイス（６）の押出口から出てきた直後に、ほとんど時間を置くことなくすぐさまホールドする製品先端ホルダー（１１）を具備する。 The product leading-end guidance device according to the present invention, as one of its main members, holds the extruded product (7) immediately after coming out from the extrusion port of the extrusion die (6) with almost no time. A tip holder (11) is provided.
該製品先端ホルダー（１１）は、図２に示すように中空押出製品（７）の中空部（７ａ）に適合する、該中空部（７ａ）の断面形状と相似形でそれより僅かに小さい断面形状の凸状嵌合部（１１ａ）と、これの基端側に位置して、押出製品（７）の先端面が当接するフランジ面（１１ｂ）とを有する。上記凸状嵌合部（１１ａ）は、押出開始に際して、その先端を押出ダイス（６）の雄型（６ｂ）のマンドレルの先端面に当接または近接させて配置され、ダイス（７）の押出口から押し出されてきた製品（７）の頭出し先端部内に入り込むことで、該先端部に曲がりを生じるのを規制する作用を果たすものである。従って、凸状嵌合部（１１ａ）は、押出材（７）の頭出し先端部内に円滑かつ確実に入り込むように、押出製品（７）の中空部（７ａ）を成形する雄型マンドレルのベアリング径より僅かに小さい直径を有する円棒状のものとなされると共に、曲がり規制のために例えば５０〜１００ｍｍ程度の長さを有するものとなされている。凸状嵌合部（１１ａ）は、その先端部外周縁を若干面取り状の円弧面、あるいはテーパー面に形成することも推奨される。 The product tip holder (11) has a cross-section similar to that of the hollow portion (7a) and slightly smaller than that of the hollow portion (7a) of the hollow extruded product (7) as shown in FIG. It has a convex fitting portion (11a) having a shape and a flange surface (11b) which is located on the proximal end side thereof and abuts against the distal end surface of the extruded product (7). When the extrusion is started, the convex fitting portion (11a) is disposed with its tip abutting or approaching the tip surface of the mandrel of the male die (6b) of the extrusion die (6). The product (7) that has been pushed out from the outlet enters the cueing front end portion, and functions to restrict the bending of the front end portion. Accordingly, the male fitting mandrel for forming the hollow portion (7a) of the extruded product (7) so that the convex fitting portion (11a) smoothly and surely enters the cueing tip portion of the extruded material (7). It is made into the shape of a round bar having a diameter slightly smaller than the diameter, and has a length of, for example, about 50 to 100 mm for bending control. It is also recommended that the convex fitting portion (11a) is formed with a slightly chamfered circular arc surface or a tapered surface at the outer peripheral edge of the tip.
フランジ面（１１ｂ）は、断面円形の短柱状のホルダー本体（１１ｃ）の後端面によって形成されているものであり、押出製品（７）の頭出し先端面が凸状嵌合部（１１ａ）を通過したのち該先端面に当接して、以降、先端ホルダー（１１）を押出方向に前進移動させるべく、押出製品（７）からの押動作用を受ける役目を担うものである。 The flange surface (11b) is formed by a rear end surface of a short columnar holder body (11c) having a circular cross section, and the cueing front end surface of the extruded product (7) is formed with a convex fitting portion (11a). After passing, it comes into contact with the tip surface, and thereafter receives the role of receiving a pushing operation from the extruded product (7) in order to move the tip holder (11) forward in the pushing direction.
押出製品先端ホルダー（１１）は、押出開始に当って上記のように押出ダイス（６）の前面側において雄型マンドレルに対して厳密に位置決めされた状態で正対保持され、頭出し開始時以降は、押出製品（７）の押出しの進行に伴って、押出方向に直進移動されなければならない。このための直進移動制御装置（２０）を具備する。 The extruded product tip holder (11) is held in a state where it is strictly positioned with respect to the male mandrel on the front side of the extrusion die (6) as described above at the start of extrusion. Must be moved straight in the extrusion direction as the extrusion of the extruded product (7) proceeds. For this purpose, a linear movement control device (20) is provided.
この直進移動制御装置（２０）は、エンドプラテン（９）の前方位置に配置された左右１対の誘導レール（１４）（１４）と、該誘導レール（１４）（１４）上を走行する走行台車（１３）と、該台車（１３）の後端から真直ぐに後方に伸び、後端に前記先端ホルダー（１１）が一体的に連結されたサポートバー（１２）とを有する。従って、先端ホルダー（１１）はサポートバー（１２）によって押出軸線上に支持されるものとなっており、押出製品（７）の押出しの進行により、先端ホルダー（１１）が押出製品（７）によって前方に押されると、走行台車（１３）がサポートレバー（１２）を介して前方に押動従動されることにより、押出軸線上に位置保持されたまま前方に直進移動されるものとなっている。 The linear movement control device (20) travels on a pair of left and right guide rails (14) and (14) disposed in front of the end platen (9) and on the guide rails (14) and (14). It has a carriage (13) and a support bar (12) that extends straight rearward from the rear end of the carriage (13) and to which the tip holder (11) is integrally connected. Accordingly, the tip holder (11) is supported on the extrusion axis by the support bar (12), and as the extrusion of the extruded product (7) proceeds, the tip holder (11) is moved by the extruded product (7). When pushed forward, the traveling carriage (13) is pushed and driven forward via the support lever (12), so that the carriage is moved straight forward while being held on the extrusion axis. .
エンドプラテン（９）と前記走行台車（１３）との間の位置には、押出製品（７）を下方側から支承する１ないし複数個の誘導ローラ装置（１５）が設けられている。該誘導ローラ装置（１５）は、Ｖ字状に配置された１対の棒状の単位ローラ（１５ａ）（１５ａ）を有し、かつ該単位ローラ（１５ａ）（１５ａ）を押出製品（７）に干渉しない下方の待機位置（図１に示す位置）と、押出製品（７）を支承する支承位置との間で昇降移動せしめる昇降駆動装置（１６）を有する。この昇降駆動装置（１６）には、一般的に流体圧シリンダーが用いられる。 At a position between the end platen (9) and the traveling carriage (13), one or more guide roller devices (15) for supporting the extruded product (7) from the lower side are provided. The guide roller device (15) has a pair of rod-shaped unit rollers (15a) (15a) arranged in a V shape, and the unit rollers (15a) (15a) are used as extruded products (7). There is an elevating drive device (16) that moves up and down between a lower standby position (position shown in FIG. 1) that does not interfere and a support position for supporting the extruded product (7). In general, a fluid pressure cylinder is used for the elevating drive device (16).
先端ホルダー（１１）が押出製品（７）に押動されて、誘導ローラ（１５）の上方を通過する時点に至ると、メタルフローの安定により、押出ダイス（６）からの製品（７）の押出状態もかなり安定した状態となる。そこで、この時点に至ると、誘導ローラ装置（１５）が上記支承位置に上昇し、製品（７）を下から１対のＶ字状配置の単位ローラ（１５ａ）（１５ａ）間に挟み込むようにして安定支承する。 When the tip holder (11) is pushed by the extruded product (7) and passes over the guide roller (15), the metal flow stabilizes and the product (7) from the extrusion die (6) is removed. The extruded state is also fairly stable. Therefore, at this point, the guide roller device (15) is raised to the support position, and the product (7) is sandwiched between a pair of V-shaped unit rollers (15a) and (15a) from the bottom. And stable support.
そして、この誘導ローラ装置（１５）による製品（７）の安定支承が実現されると、先端ホルダー（１１）はもはやその役割を終える。従って、続いて該先端ホルダー（１１）は前方に速い速度で積極的に駆動され、押出製品（７）の先端から引き離される。このための引離し駆動装置（１７）は、前記走行台車（１３）の前端に連結された直動式シリンダー（１７ａ）からなり、前記誘導ローラ装置（１５）によって押出製品が支承された後に、該シリンダー（１７ａ）のロッド（１７ｂ）を押出速度を超える速度で前方に引き込み作動せしめ、走行台車（１３）、サポートバー（１２）を介して先端ホルダー（１１）を速い速度で前方に移動させ、押出製品（７）の先端との嵌合を解いて前方に引き離すようになっている。 When the stable support of the product (7) by the guide roller device (15) is realized, the tip holder (11) no longer finishes its role. Therefore, the tip holder (11) is subsequently driven forward at a high speed and pulled away from the tip of the extruded product (7). The separation drive device (17) for this purpose comprises a direct acting cylinder (17a) connected to the front end of the traveling carriage (13), and after the extruded product is supported by the guide roller device (15), The rod (17b) of the cylinder (17a) is pulled forward at a speed exceeding the extrusion speed, and the tip holder (11) is moved forward at a high speed via the traveling carriage (13) and the support bar (12). The fitting with the tip of the extruded product (7) is released, and the product is pulled forward.
引き離された先端ホルダー（１１）は、続いて、これを押出製品（７）の押出ラインに干渉しない退避位置に退避せしめるようになっている。 The tip holder (11) that has been separated is then retracted to a retracted position that does not interfere with the extrusion line of the extruded product (7).
このための退避駆動装置（３０）は、図１に示すように、前記直進移動制御装置（２０）及び引き離し駆動装置（１７）を搭載した昇降可動台（１８）と、押出方向と直交して上下方向に配置された前後１対の可動台走行用退避レール（１９）（１９）と、前記可動台（１８）を退避方向である上方に駆動する退避駆動シリンダー（２１）とを備える。そして、前記引離し駆動装置（１７）が駆動されて先端ホルダー（１１）が押出製品の先端から引き離された後、前記退避駆動シリンダー（２１）が作動して、そのロッド（２１ａ）によりレール（１９）（１９）に沿って可動台（１８）を上方に引き上げ、これに伴って先端ホルダー（１１）を押出製品（７）と干渉しない上方の待機位置に退避せしめ得るものとなされている。尚、図中（２２）は、誘導装置の取付用固定基台を示す。 As shown in FIG. 1, the retracting drive device (30) for this purpose includes an elevating movable table (18) on which the linear movement control device (20) and the separation drive device (17) are mounted, and is orthogonal to the extrusion direction. A pair of front and rear movable rail traveling retreat rails (19) and (19) arranged in the vertical direction and a retraction drive cylinder (21) for driving the movable base (18) upward in the retreat direction are provided. And after the said pulling drive apparatus (17) is driven and the front-end | tip holder (11) is pulled away from the front-end | tip of an extrusion product, the said retraction | saving drive cylinder (21) act | operates and a rail ( 19) The movable base (18) is lifted upward along (19), and the tip holder (11) can be retracted to the upper standby position that does not interfere with the extruded product (7). In addition, (22) in a figure shows the fixed base for attachment of a guidance apparatus.
上記の誘導装置において、押出製品（７）の押出開始にあたっては、先ず図３の（Ａ）に示すように先端ホルダー（１１）をエンドプラテン（９）及びボルスタ（８）の中空部を通じて、押出ダイス（６）の前面側に配置する。このとき、先端ホルダー（１１）の凸状嵌合部（１１ａ）の先端面（後面）を図１に示すように押出ダイス（６）の雄型マンドレルの前端面に密接状態に当接させるか、又は少なくとも至近位置に近接配置させるように設定する。 In the above induction device, at the start of extrusion of the extruded product (7), first, as shown in FIG. 3A, the tip holder (11) is extruded through the hollow portions of the end platen (9) and the bolster (8). It arrange | positions at the front side of dice | dies (6). At this time, the front end surface (rear surface) of the convex fitting portion (11a) of the front end holder (11) is brought into close contact with the front end surface of the male mandrel of the extrusion die (6) as shown in FIG. Or at least close to the closest position.
この状態から、ステム（５）でビレット（３）を押し、所定の定速押出操作を開始する。この押出開始当初は、押出ダイス（６）を通過する押出材料のメタルフローが未だ安定しないため、ダイス（６）の出口からは、やや不均一な押出状態で製品（７）の先端部が押出されてくる。ところが、この押出された先端部は、ダイス（６）の前面側に待機する先端ホルダー（１１）の凸状嵌合部（１１ａ）の外周面に沿って前進されることになるため、当該先端部に曲がりを生じるのを規制され、凸状嵌合部（１１ａ）の外周面に沿って真直ぐに前進されることになる。 From this state, the billet (3) is pushed by the stem (5), and a predetermined constant speed extrusion operation is started. At the beginning of this extrusion, the metal flow of the extruded material passing through the extrusion die (6) is not yet stable, so the tip of the product (7) is extruded from the outlet of the die (6) in a slightly non-uniform extrusion state. It will be. However, the pushed tip is advanced along the outer peripheral surface of the convex fitting portion (11a) of the tip holder (11) waiting on the front side of the die (6). The bending of the portion is restricted, and the portion is advanced straight along the outer peripheral surface of the convex fitting portion (11a).
そして、やがて製品（７）の先端面が先端ホルダー（１１）のフランジ面（１１ｂ）に当接すると、該ホルダー（１１）は製品（７）からの押圧力を受けて押出方向に従動的に前進移動される。 Then, when the tip surface of the product (7) eventually comes into contact with the flange surface (11b) of the tip holder (11), the holder (11) receives the pressing force from the product (7) and follows the extrusion direction. Move forward.
この前進移動は、図３の（Ｂ）に示すように、サポートバー（１２）を介して誘導レール（１４）上を走行する走行台車（１３）と一体的に行われるため、押出軸線に沿って直進規制される。従って、押出製品（７）は、頭出し開始時の先端部において既に曲がりのない状態のものとして得られ、先端部に続く部分も、先端ホルダー（１１）によって先端部がホールドされた状態で該ホルダー（１１）の直進移動に誘導されるため、また、ダイスを通過するメタルフローが次第に安定してくるため、曲がりのない状態でエンドプラテン（９）の出口から押出プレスの前方に導出されてくる。 As shown in FIG. 3 (B), the forward movement is performed integrally with the traveling carriage (13) traveling on the guide rail (14) via the support bar (12), and therefore, along the extrusion axis. Will be restricted. Therefore, the extruded product (7) is obtained in a state where there is no bending at the tip at the start of cueing, and the portion following the tip is also held in the state where the tip is held by the tip holder (11). Since it is guided by the straight movement of the holder (11) and the metal flow passing through the die is gradually stabilized, it is led out from the exit of the end platen (9) to the front of the extrusion press without bending. come.
やがて、押出製品（７）の先端部が誘導ローラ（１５）の上方を通過すると、図３の（Ｃ）に示すように誘導ローラ（１５）が上昇駆動され、その１対のＶ字状に配置された単位ローラ（１５ａ）（１５ａ）によって下から担持支承される。 Eventually, when the leading end of the extruded product (7) passes above the guide roller (15), the guide roller (15) is driven up as shown in FIG. It is supported and supported from below by the arranged unit rollers (15a) (15a).
続いて、先端ホルダー（１１）は押出製品（７）の先端から引き離される。この引き離しは、図３（Ｃ）に示すように、シリンダー（１７ａ）を駆動して走行台車（１３）を押出速度を超える速度で前方に移動することにより、サポートバー（１２）を介して先端ホルダー（１１）を前方に加速移動させることによって行われる。 Subsequently, the tip holder (11) is pulled away from the tip of the extruded product (7). As shown in FIG. 3 (C), this pulling is performed by driving the cylinder (17a) and moving the traveling carriage (13) forward at a speed exceeding the extrusion speed, thereby leading the tip through the support bar (12). This is done by accelerating the holder (11) forward.
先端ホルダー（１１）が製品（７）から引き離されると、直後に退避駆動装置（３０）が起動される。即ち、図１に示されるシリンダー（２１）の駆動により、昇降可動台（１８）が退避レール（１９）（１９）に沿って上方に引き上げられ、図３の（Ｃ）に示すように可動台（１８）に搭載された走行台車（１３）ごとそれに搭載されているずべての部材が上方に移動され、結果的に先端ホルダー（１１）も上方の待機位置、即ち押出製品（７）の押出ラインの系外に退避される。 When the tip holder (11) is pulled away from the product (7), the retracting drive device (30) is activated immediately after. That is, as the cylinder (21) shown in FIG. 1 is driven, the up-and-down movable base (18) is lifted upward along the retraction rails (19) and (19), and the movable base as shown in (C) of FIG. The traveling carriage (13) mounted on (18) and all the members mounted thereon are moved upward, and as a result, the tip holder (11) is also in the upper standby position, that is, the extrusion of the extruded product (7). Evacuated outside the line.
従って、以降、押出製品（７）は、先端誘導装置に干渉されることなく、図３（Ｃ）に示すように更にその前方位置に配置された前部誘導ローラ（２５）による誘導作用を受けつつ、所望の真直度を保った状態で前方に誘導される。 Therefore, thereafter, the extruded product (7) is guided by the front guide roller (25) disposed further in the front position as shown in FIG. 3 (C) without being interfered with the tip guide device. However, it is guided forward while maintaining a desired straightness.
この発明による上記のような押出製品先端誘導方法および装置によれば、上述のように押出開始時の初期段階から、製品先端部に曲がりのない押出製品を得ることが可能である。従って、従来の頭出し作業のような低速押出し、プレスの一時停止、先端曲がり部の切断除去等の各工程による面倒な頭出し作業を必要とすることなく、押出初期の段階から定速かつ連続押出しを実行して、良好な曲がりのない製品を得ることができる。その結果、大幅な作業性の向上、生産性の向上、省力化、製品歩留りの向上の各効果を享受することができる。 According to the extruded product tip guiding method and apparatus according to the present invention as described above, it is possible to obtain an extruded product in which the product tip is not bent from the initial stage at the start of extrusion as described above. Therefore, constant speed and continuous from the initial stage of extrusion without the need for troublesome cueing work by each process such as low speed extrusion like conventional cueing work, temporary stop of press, cutting and removal of the bent part of the tip, etc. Extrusion can be performed to obtain a good unbent product. As a result, it is possible to enjoy the effects of significant workability improvement, productivity improvement, labor saving, and product yield improvement.
尚、上記の図示実施態様は、円形のパイプ状製品の押出しの場合を一例として説明したが、本発明の適用はこれに限定されるものではない。 In the illustrated embodiment, the case of extruding a circular pipe-shaped product has been described as an example. However, the application of the present invention is not limited to this.
押出製品が、円形以外の中空部を有する中空材である場合には、先端ホルダーの凸状嵌合部を上記中空部の断面形状に適合する形状のものとすることによって、同様に適用可能である。 When the extruded product is a hollow material having a hollow portion other than a circle, it can be similarly applied by making the convex fitting portion of the tip holder conform to the cross-sectional shape of the hollow portion. is there.
また、この発明は中実の押出製品を押出成形する場合にも同様に適用可能である。即ち、この場合、先端ホルダー（３１）を図４に示すように、中実押出製品（７１）の外周面形状に適合する凹状の嵌合部（３１ａ）を有するものとすることにより、適用可能である。 The present invention can also be applied to a case where a solid extruded product is extruded. That is, in this case, as shown in FIG. 4, the tip holder (31) can be applied by having a concave fitting portion (31a) adapted to the outer peripheral surface shape of the solid extruded product (71). It is.
更にまた、中空状の押出製品（７２）を押出成形する場合に、先端ホルダー（４１）を図５に示すように、製品（７２）の中空部に嵌まり込む凸状嵌合部（４１ａ）に加えて、製品（４１）の外周面に適合する凹状嵌合部（４１ｂ）をも備えたものとしても良い。 Furthermore, when extruding a hollow extruded product (72), as shown in FIG. 5, the convex fitting portion (41a) for fitting the tip holder (41) into the hollow portion of the product (72). In addition to this, it may be provided with a concave fitting part (41b) adapted to the outer peripheral surface of the product (41).
本発明に係る先端誘導装置は、押出製品の種類に対応して上記のような各種の先端ホルダーを置換使用することを可能にするため、サポートバー（１２）の先端に脱着可能に取付け得るものとすることが有利である。 The tip guide device according to the present invention can be detachably attached to the tip of the support bar (12) in order to be able to replace and use various tip holders as described above corresponding to the type of extruded product. Is advantageous.
１・・・・押出プレス
２・・・・コンテナ
３・・・・ビレット
６・・・・押出ダイス
７・・・・押出製品
９・・・・エンドプラテン
１１・・・製品先端ホルダー
１１ａ・・凸状嵌合部
１１ｂ・・フランジ面
１２・・・サポートバー
１３・・・走行台車
１４・・・誘導レール
１５・・・誘導ローラ
１５ａ・・棒状単位ローラ
１６・・・昇降シリンダー
１７・・・引き離し駆動装置
１７ａ・・直動式シリンダー
１７ｂ・・シリンダロッド
１８・・・可動台
１９・・・退避レール
２０・・・直進移動制御装置
２１・・・退避駆動シリンダー
３０・・・退避駆動装置
３１・・・先端ホルダー
３１ａ・・凹状嵌合部
４１・・・先端ホルダー
４１ａ・・凸状嵌合部
４１ｂ・・凹状嵌合部
７１、７２・・押出製品
DESCRIPTION OF SYMBOLS 1 ... Extrusion press 2 ... Container 3 ... Billet 6 ... Extrusion die 7 ... Extruded product 9 ... End platen 11 ... Product tip holder 11a ... Convex fitting part 11b ... Flange surface 12 ... Support bar 13 ... Traveling carriage 14 ... Guide rail 15 ... Guide roller 15a ... Rod unit roller 16 ... Lifting cylinder 17 ... Separation drive device 17a ··· Direct-acting cylinder 17b ··· Cylinder rod 18 ··· Movable base 19 ··· Retraction rail 20 ··· Linear movement control device 21 ··· Retraction drive cylinder 30 ··· Retraction drive device 31 ... Tip holder 31a ···································································································································
Claims (14)
該押出製品先端ホルダーを押出ダイスの出口に当接または近接状態に配置して押出操作を開始し、押出製品の先端部を押出直後に前記押出製品先端ホルダーに嵌合状態にホールドさせるものとし、
以降、押出製品に同調して前記押出製品先端ホルダーを押出方向に直進移動せしめるものとすることを特徴とする押出製品の先端誘導方法。 Using an extruded product tip holder having a convex and / or concave fitting portion that conforms to the inner peripheral surface shape and / or outer peripheral surface shape of the extruded product,
The extrusion product tip holder is placed in contact with or close to the outlet of the extrusion die to start the extrusion operation, and the tip of the extrusion product is held in a fitted state in the extrusion product tip holder immediately after extrusion.
Thereafter, the method of guiding the tip of the extruded product, wherein the extruded product tip holder is moved linearly in the extrusion direction in synchronization with the extruded product.
前記押出製品先端ホルダーを押出速度を超える速度で前方に直進移動して先端ホルダーを押出製品から引き離し、
次いで、前記押出製品先端ホルダーを押出製品と干渉しない退機位置に退避移動させることを特徴とする請求項１に記載の押出製品の先端誘導方法。 At the front position of the end platen, after supporting the rear part from the tip of the extruded product with a guide roller,
The extruded product tip holder moves straight forward at a speed exceeding the extrusion speed to pull the tip holder away from the extruded product,
2. The method for guiding the tip of an extruded product according to claim 1, wherein the tip end holder of the extruded product is retracted to a retracted position that does not interfere with the extruded product.
該可動台を移動せしめることにより、前記押出製品先端ホルダーを退避移動させる請求項４に記載の押出製品の先端誘導方法。 The traveling carriage is equipped on a movable platform that can travel and move on a retraction rail disposed in a direction orthogonal to the extrusion direction,
The method for guiding the tip of an extruded product according to claim 4, wherein the tip end holder of the extruded product is retracted by moving the movable table.
これに対応して前記押出製品先端ホルダーが、押出製品の中空部と相似形で該中空部内にしっくりと嵌合される凸状嵌合部と、押出製品の先端面に当接するフランジ面とを有するものとなされている請求項１〜５のいずれか１項に記載の押出製品の先端誘導方法。 The extruded product is a hollow tubular product,
Correspondingly, the extruded product tip holder has a convex fitting portion that is similar to the hollow portion of the extruded product and fits snugly into the hollow portion, and a flange surface that comes into contact with the tip surface of the extruded product. The method for guiding the tip of an extruded product according to any one of claims 1 to 5, wherein the tip is guided.
該押出製品先端ホルダーを、押出製品の押出しに伴って、押出方向に直進移動させる直進移動制御機構とを備え、
前記押出製品先端ホルダーは、押出し開始にあたって、エンドプラテンのプラテンホール及びボルスタの中空部を通って、押出ダイスの押出孔に臨んでその近接位置に配置しうるものとなされていることを特徴とする押出製品の先端誘導装置。 An extruded product tip holder having a convex and / or concave fitting portion adapted to the inner peripheral surface shape and / or outer peripheral surface shape of the extruded product;
A linear movement control mechanism that linearly moves the extruded product tip holder in the extrusion direction as the extruded product is extruded;
The extruded product tip holder is configured to be able to be disposed at a position close to the extrusion hole of the extrusion die through the platen hole of the end platen and the hollow portion of the bolster at the start of extrusion. Extrusion product tip guidance device.
該押出製品先端ホルダーを、押出製品の押出しに伴って、押出方向に直進移動させる直進移動制御装置と、
エンドプラテンの前方位置で、押出製品の先端部よりも後方部位を下方から支承する誘導ローラ装置と、
前記誘導ローラで押出製品を支承せしめたのち、前記押出製品先端ホルダーを押出速度を超える速度で前方に直進移動させる引き離し駆動装置と、
前記引離し駆動装置の駆動によって押出製品先端ホルダーを押出製品先端から引き離したのち、押出製品先端ホルダーを押出製品と干渉しない待機位置に退避せしめるべく移動させる退避駆動装置とを備え、
前記押出製品先端ホルダーは、押出し開始にあたって、エンドプラテンのプラテンホール及びボルスタの中空部を通って、押出ダイスの押出孔に臨んでその近接位置に配置しうるものとなされていることを特徴とする押出製品の先端誘導装置。 An extruded product tip holder having a convex and / or concave fitting portion adapted to the inner peripheral surface shape and / or outer peripheral surface shape of the extruded product;
A linear movement control device that linearly moves the extruded product tip holder in the extrusion direction as the extruded product is extruded;
A guide roller device for supporting a rear part from below at the front position of the end platen from the front end of the extruded product;
A pulling drive device for supporting the extruded product with the guide roller and then moving the extruded product tip holder straight forward at a speed exceeding the extrusion speed;
A retracting drive device for moving the extruded product tip holder to retract to a standby position where it does not interfere with the extruded product after separating the extruded product tip holder from the extruded product tip by driving the pulling drive device;
The extruded product tip holder can be disposed in the proximity of the extrusion hole of the extrusion die through the platen hole of the end platen and the hollow portion of the bolster at the start of extrusion. Extrusion product tip guidance device.
押出製品の中空部と相似形で該中空部内にしっくりと嵌合される凸状嵌合部と、押出製品の先端面に当接するフランジ面とを有する請求項７または８に記載の押出製品の先端誘導装置。 The extruded product tip holder corresponds to a hollow tubular extruded product,
The extruded product according to claim 7 or 8, which has a convex fitting portion similar in shape to the hollow portion of the extruded product and fits snugly into the hollow portion, and a flange surface abutting on the tip surface of the extruded product. Tip guidance device.
The manufacturing method of the extrusion product characterized by including the front-end | tip guidance method of any one of Claims 1-6 in an extrusion process.
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| JP2011504420A (en) * | 2007-11-26 | 2011-02-10 | アルシジオ エービー | Device and method for profile production using a rotating die |
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