JP2020146703A - Press device and method for molding press device - Google Patents
Press device and method for molding press device Download PDFInfo
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- JP2020146703A JP2020146703A JP2019044634A JP2019044634A JP2020146703A JP 2020146703 A JP2020146703 A JP 2020146703A JP 2019044634 A JP2019044634 A JP 2019044634A JP 2019044634 A JP2019044634 A JP 2019044634A JP 2020146703 A JP2020146703 A JP 2020146703A
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Abstract
Description
本発明は 加圧シリンダのラムにより可動盤側に設けられた下加圧部材を上昇させ、上盤側に設けられた上加圧部材との間で被加工材が加圧されるプレス装置およびプレス装置の成形方法に関するものである。 The present invention is a press device in which a lower pressurizing member provided on the movable platen side is raised by a ram of a pressurizing cylinder, and a work material is pressed between the lower pressurizing member and the upper pressurizing member provided on the upper plate side. It relates to a molding method of a pressing device.
プレス装置については、特許文献1ないし特許文献3に記載されたものが知られている。特許文献1は、タイバを使用せずプレス本体により上盤2を支える構造のものである。また特許文献2の図6に示されるプレス装置は「ピットレスタイプ」と呼ばれるものであり、可動盤96をシリンダ装置100によって固定盤97側に引っ張るようにしたものである。そして特許文献2には、加圧時の可動盤の反りが被加工材に及んで中央部分が膨らんだいわば断面「鼓(たいこ)状」となることを防止するため、可動盤の中央部には熱板の略中央部分を押圧する中央押圧部材を設けることが記載されている。更に特許文献3は、可動盤のラムの断面直径を可動盤の一辺の長さと略同一にするとともに、熱板の大きさを前記可動盤と略同一にし、被加工材を前記ラムの断面積の範囲内に載置して加熱圧縮加工をすることが記載されている。その結果特許文献3では、ラムの押圧力を効率よくしかも効果的に熱板に加わるようにし、被加工材の全体に対し均一な圧力で押圧することのできることが記載されている。 As the press device, those described in Patent Document 1 to Patent Document 3 are known. Patent Document 1 has a structure in which the upper plate 2 is supported by a press body without using a tie bar. Further, the press device shown in FIG. 6 of Patent Document 2 is called a "pitless type", in which the movable platen 96 is pulled toward the fixed platen 97 by the cylinder device 100. Further, in Patent Document 2, in order to prevent the warp of the movable plate during pressurization from extending to the material to be processed and forming a so-called “drum-shaped” cross section in the central portion, the central portion of the movable plate is formed. It is described that a central pressing member for pressing a substantially central portion of the hot plate is provided. Further, in Patent Document 3, the cross-sectional diameter of the ram of the movable plate is substantially the same as the length of one side of the movable plate, the size of the hot plate is substantially the same as that of the movable plate, and the material to be processed is the cross-sectional area of the ram. It is described that it is placed within the range of the above and heat-compressed. As a result, Patent Document 3 describes that the pressing force of the ram can be efficiently and effectively applied to the hot plate, and the pressing force can be applied to the entire work material with a uniform pressure.
しかしながら特許文献1ないし特許文献3については、加圧時に上盤の反りが発生する問題とそれに伴う諸問題については何ら有効な対策がされていなかった。前記問題について特許文献1では上盤の厚みを厚くすることで解決を図ろうとしている。しかしながら特許文献1のように上盤の厚みを厚くしても重量増加の割に上盤の反りは完全には解消できなかった。その結果、熱板間で加圧される被加工材は鼓状の中央部の厚みが厚くなる傾向は解消されなかった。またホットプレス装置においては、加圧時に被加工材の中央部の厚みが厚くなり周辺部の厚みが薄くなると、被加工材から発生するガスが抜けにくくなるという問題もあった。 However, with respect to Patent Documents 1 to 3, no effective countermeasures have been taken for the problem of warpage of the upper plate during pressurization and various problems associated therewith. Patent Document 1 attempts to solve the above problem by increasing the thickness of the upper plate. However, even if the thickness of the upper plate is increased as in Patent Document 1, the warp of the upper plate cannot be completely eliminated in spite of the increase in weight. As a result, the tendency of the work material to be pressurized between the hot plates to have a thicker drum-shaped central portion was not eliminated. Further, in the hot press apparatus, if the thickness of the central portion of the material to be processed becomes thick and the thickness of the peripheral portion becomes thin during pressurization, there is a problem that gas generated from the material to be processed is difficult to escape.
また特許文献2では図4に示されるように中央押圧部材により下側の熱板が凸状に反ることと上盤および上側の熱板が凹状に反ることを対応させて平行度の高い被加工材を成形することを目指しているが、被加工材の反りを容認するものであった。更に特許文献3についても下側の熱板のラムの断面積内に被加工材が載置されるので下側の熱板には反りの問題は発生しないが、上盤の反りに対しては特許文献2と同様に有効な対策がされていなかった。その結果、特許文献2と同様の問題を内在していた。 Further, in Patent Document 2, as shown in FIG. 4, the central pressing member causes the lower hot plate to warp in a convex shape and the upper plate and the upper hot plate to warp in a concave shape, resulting in high parallelism. The aim was to mold the work material, but it allowed the warp of the work material. Further, in Patent Document 3, since the material to be processed is placed in the cross section of the ram of the lower hot plate, the problem of warpage does not occur in the lower hot plate, but the warp of the upper plate is dealt with. As with Patent Document 2, effective measures have not been taken. As a result, the same problem as in Patent Document 2 was inherent.
本発明では上記の問題を鑑みて、加圧時の上盤の反りが被加工材に殆ど及ばず、精度の高い加圧成形を行うことのできるプレス装置およびプレス装置の成形方法を提供することを目的とする。 In view of the above problems, the present invention provides a pressing device and a forming method for the pressing device, in which the warp of the upper plate during pressurization hardly reaches that of the material to be processed and high-precision pressure forming can be performed. With the goal.
本発明の請求項1に記載のプレス装置は、加圧シリンダのラムにより可動盤側に設けられた下加圧部材を上昇させ、上盤側に設けられた上加圧部材との間で被加工材が加圧されるプレス装置において、上盤と上加圧部材の間には前記ラムに対向して間接的に被加工材に反力を加える所定の高さを備えたスペーサ部材が取付けられたことを特徴とする。 In the press device according to claim 1 of the present invention, the lower pressurizing member provided on the movable platen side is raised by the ram of the pressurizing cylinder, and is applied to the upper pressurizing member provided on the upper plate side. In a press device in which a work material is pressed, a spacer member having a predetermined height that indirectly applies a reaction force to the work material facing the ram is attached between the upper plate and the upper pressure member. It is characterized by being done.
本発明の請求項2に記載のプレス装置は、加圧シリンダのラムにより可動盤側に設けられた下加圧部材を上昇させ、上盤側に設けられた上加圧部材との間で被加工材が加圧されるプレス装置において、上盤と上加圧部材の間には前記ラムに対向して前記ラムの水平方向の断面積に対して95%ないし110%の水平方向の断面積と所定の高さを備えたスペーサ部材が備えられたことを特徴とする。 In the press device according to claim 2 of the present invention, the lower pressurizing member provided on the movable platen side is raised by the ram of the pressurizing cylinder, and the lower pressurizing member is placed between the press device and the upper pressurizing member provided on the upper plate side. In a press device in which a work material is pressed, a horizontal cross-sectional area of 95% to 110% of the horizontal cross-sectional area of the ram facing the ram is between the upper plate and the upper pressurizing member. It is characterized in that a spacer member having a predetermined height is provided.
本発明の請求項3に記載のプレス装置は、請求項1または請求項2において、上盤の厚みよりもスペーサ部材の高さのほうが大きいことを特徴とする。 The press device according to claim 3 of the present invention is characterized in that, in claim 1 or 2, the height of the spacer member is larger than the thickness of the upper plate.
本発明の請求項4に記載のプレス装置の成形方法は、加圧シリンダのラムにより可動盤側に設けられた下加圧部材を上昇させ、上盤側に設けられた上加圧部材との間で被加工材が加圧されるプレス装置の成形方法において、上盤と上加圧部材の間には前記ラムに対向して間接的に被加工材に反力を加える所定の高さを備えたスペーサ部材が取付けられ、前記被加工材は上加圧部材の前記ラムおよびスペーサ部材の双方の断面を投影した部分内に配置され、前記ラムにより加圧されることを特徴とする。 In the molding method of the press device according to claim 4 of the present invention, the lower pressurizing member provided on the movable platen side is raised by the ram of the pressurizing cylinder, and the lower pressurizing member is provided with the upper pressurizing member provided on the upper plate side. In the molding method of the press device in which the work material is pressed between the upper plates, a predetermined height is provided between the upper plate and the upper pressure member to indirectly apply a reaction force to the work material facing the ram. A provided spacer member is attached, and the work material is arranged in a portion of the upper pressurizing member that projects a cross section of both the ram and the spacer member, and is pressurized by the ram.
本発明のプレス装置は、加圧シリンダのラムにより可動盤側に設けられた下加圧部材を上昇させ、上盤側に設けられた上加圧部材との間で被加工材が加圧されるプレス装置において、上盤と上加圧部材の間には前記ラムに対向して間接的に被加工材に反力を加える所定の高さを備えたスペーサ部材が取付けられるので、精度の高い加圧成形を行うことができる。 In the press device of the present invention, the lower pressurizing member provided on the movable platen side is raised by the ram of the pressurizing cylinder, and the work material is pressurized with the upper pressurizing member provided on the upper platen side. In the press device, a spacer member having a predetermined height that indirectly applies a reaction force to the work piece facing the ram is attached between the upper plate and the upper pressurizing member, so that the accuracy is high. Pressure molding can be performed.
本発明の一実施形態であるプレス装置11について、図1および図2を参照して説明する。プレス装置11は、加圧シリンダ12のラム13により可動盤14側に設けられた下加圧部材である熱板15を上昇させ、上盤16側に設けられた上加圧部材である熱板17との間で被加工材Pが加圧されるものである。 The press device 11 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. The press device 11 raises the hot plate 15 which is the lower pressurizing member provided on the movable platen 14 side by the ram 13 of the pressurizing cylinder 12, and the hot plate which is the upper pressurizing member provided on the upper plate 16 side. The material P to be processed is pressurized with respect to 17.
プレス装置11は、下側に加圧シリンダ12を備えている。加圧シリンダ12は図示しないベースに固定されるか工場のピットの中に載置されている。本実施形態では加圧シリンダ12は油室18を備えた単動のシリンダであり、シリンダ筒19に対して昇降する中実の円柱状のラム13を備えている。油室18に接続されるポンプ等の油圧機構や制御機構は、図示しての説明を省略する。 The press device 11 includes a pressure cylinder 12 on the lower side. The pressurizing cylinder 12 is fixed to a base (not shown) or placed in a factory pit. In the present embodiment, the pressure cylinder 12 is a single-acting cylinder provided with an oil chamber 18, and includes a solid columnar ram 13 that moves up and down with respect to the cylinder cylinder 19. The hydraulic mechanism and control mechanism such as a pump connected to the oil chamber 18 will not be illustrated.
加圧シリンダ12の基台部20は矩形形状で所定の厚みを備えており、その四隅近傍にはそれぞれタイバ21が縦方向にナットにより締結されている。タイバ21の上部は、矩形形状であって所定の板厚を備えた上盤16の四隅近傍にナットにより締結されている。そしてラム13の前端面22は、可動盤14の背面に固定されている。矩形形状で一定板厚を備えた可動盤14は、四隅近傍にタイバ挿通孔23が設けられ、前記タイバ挿通孔23にタイバ21が挿通されている。従って可動盤14は、ラム13の昇降に伴いタイバ21にガイドされて昇降移動可能となっている。なお本発明においてタイバ21は必須ではなく、特許文献1のように本体部により上盤が支えられるものでもよい。 The base portion 20 of the pressure cylinder 12 has a rectangular shape and has a predetermined thickness, and tie bars 21 are vertically fastened with nuts in the vicinity of the four corners thereof. The upper portion of the tie bar 21 is fastened with nuts near the four corners of the upper plate 16 having a rectangular shape and a predetermined plate thickness. The front end surface 22 of the ram 13 is fixed to the back surface of the movable board 14. The movable platen 14 having a rectangular shape and a constant plate thickness is provided with tie bar insertion holes 23 near the four corners, and the tie bar 21 is inserted into the tie bar insertion holes 23. Therefore, the movable board 14 can be moved up and down by being guided by the tie bar 21 as the ram 13 goes up and down. The tie bar 21 is not essential in the present invention, and the upper board may be supported by the main body as in Patent Document 1.
可動盤14の上面には下加圧部材である矩形の熱板15の裏面が固定されている。熱板15は所定の厚みを備え、上面が平面の成形面からなる盤体である。そして熱板15内には管路24が形成されており、図示しない熱媒装置から熱媒が前記管路24内に供給され、熱板の加熱または冷却がなされるようになっている。 The back surface of the rectangular hot plate 15 which is a lower pressurizing member is fixed to the upper surface of the movable platen 14. The hot plate 15 is a plate having a predetermined thickness and having a flat upper surface formed of a molded surface. A pipe line 24 is formed in the hot plate 15, and a heat medium is supplied into the pipe line 24 from a heat medium device (not shown) so that the hot plate is heated or cooled.
また上盤16の下面の中央には、所定の高さhを備えたスペーサ部材25が固定されている。スペーサ部材25はタイバ21の内側部分には接触しない位置に固定されている。本実施形態ではスペーサ部材25は、円柱状の中実ブロックからなる鋼体であり、その直径はラム13の直径と同じとなっている。なおスペーサ部材25の水平方向の断面形状は円形の他、矩形や矩形において角部が曲面となっているもの、または多角形などでもよい。またスペーサ部材25が矩形の場合、熱板17の形状(長方形の場合を含む)と同一、または熱板17の形状に近似するものでもよい。本実施形態ではスペーサ部材25の水平方向の断面積は、ラム13の水平方向の断面積と同一であるが、ラム13の断面積に近似した略同一のものでもよい。 A spacer member 25 having a predetermined height h is fixed to the center of the lower surface of the upper plate 16. The spacer member 25 is fixed at a position where it does not come into contact with the inner portion of the tie bar 21. In the present embodiment, the spacer member 25 is a steel body made of a columnar solid block, and its diameter is the same as the diameter of the ram 13. The horizontal cross-sectional shape of the spacer member 25 may be circular, rectangular, rectangular with curved corners, polygonal, or the like. When the spacer member 25 is rectangular, it may be the same as the shape of the hot plate 17 (including the rectangular shape) or similar to the shape of the hot plate 17. In the present embodiment, the horizontal cross section of the spacer member 25 is the same as the horizontal cross section of the ram 13, but it may be substantially the same as the cross section of the ram 13.
スペーサ部材25の水平方向の断面積については具体的には、スペーサ部材25が断面正方形の長方体であって上方から投影視して円柱状のラム13に内接する場合、スペーサ部材25の前記断面積はラム13の前記断面積に対して64%(小数点以下四捨五入)となる。またスペーサ部材25が断面正方形の長方体であって上方から投影視して円柱状のラム13に外接する場合、スペーサ部材25の前記断面積はラム13の前記断面積に対して127%(小数点以下四捨五入)となる。或いはスペーサ部材25が円柱状であり直径がラムの直径の90%の場合、スペーサ部材25の前記断面積はラム13の前記断面積に対して81%(小数点以下四捨五入)となる。更にスペーサ部材25が円柱状であり直径がラム13の直径の110%の場合、スペーサ部材25の前記断面積はラム13の前記断面積に対して121%(小数点以下四捨五入)となる。従ってスペーサ部材25の前記断面積は、ラム13の前記断面積に対して、64%ないし127%とすることが望ましく、更にはラム13の前記断面積に対して、81%ないし121%とすることが望ましい。またより一層望ましくはラム13の前記断面積に対して、スペーサ部材25の前記断面積を95%ないし110%の略同一の範囲とすることが望ましい。 Regarding the horizontal cross section of the spacer member 25, specifically, when the spacer member 25 is a rectangular parallelepiped having a square cross section and is inscribed in the columnar ram 13 when projected from above, the spacer member 25 is described above. The cross-sectional area is 64% (rounded to the nearest whole number) of the cross-sectional area of the ram 13. When the spacer member 25 is a rectangular parallelepiped having a square cross section and circumscribes the columnar ram 13 when projected from above, the cross section of the spacer member 25 is 127% of the cross section of the ram 13. Rounded to the nearest whole number). Alternatively, when the spacer member 25 is cylindrical and the diameter is 90% of the diameter of the ram, the cross section of the spacer member 25 is 81% (rounded to the nearest whole number) of the cross section of the ram 13. Further, when the spacer member 25 is cylindrical and the diameter is 110% of the diameter of the ram 13, the cross section of the spacer member 25 is 121% (rounded to the nearest whole number) of the cross section of the ram 13. Therefore, the cross section of the spacer member 25 is preferably 64% to 127% with respect to the cross section of the ram 13, and further is 81% to 121% with respect to the cross section of the ram 13. Is desirable. Even more preferably, the cross section of the spacer member 25 should be in the substantially same range of 95% to 110% with respect to the cross section of the ram 13.
スペーサ部材25は、ラム13に対向して間接的に被加工材Pに反力を加える所定の高さhを備えたものであり、加圧時の上盤16の反りが上加圧部材である熱板17に及びにくくする目的を有している。本実施形態では中実の円柱体であるスペーサ部材25の直径よりも円柱体の高さh(厚み)のほうが大きくなっている。またスペーサ部材25が断面正方形の長方体の場合は、水平方向の辺の長さよりも高さhのほうを大きくする。ただしプレス装置11が加圧シリンダ12のストロークや装置全高に制限がある場合、必ずしもスペーサ部材25の直径等よりも所定の高さhの値を大きくしなければならない訳ではない。スペーサ部材25の直径等よりも高さhを大きくしたほうがより一層、加圧時の上盤16の変形に伴う被加工材Pへの影響を小さくできるが、それは被加工材Pに求められる加工精度等との関係により決定される。 The spacer member 25 has a predetermined height h that indirectly applies a reaction force to the work piece P facing the ram 13, and the warp of the upper plate 16 during pressurization is the upper pressurizing member. It has the purpose of making it difficult to reach a certain hot plate 17. In the present embodiment, the height h (thickness) of the cylinder is larger than the diameter of the spacer member 25, which is a solid cylinder. When the spacer member 25 is a rectangular parallelepiped having a square cross section, the height h is made larger than the length of the side in the horizontal direction. However, when the press device 11 has a limitation on the stroke of the pressure cylinder 12 and the total height of the device, it is not always necessary to make the value of the predetermined height h larger than the diameter of the spacer member 25 or the like. If the height h is made larger than the diameter of the spacer member 25, the influence on the work material P due to the deformation of the upper plate 16 at the time of pressurization can be further reduced, which is the processing required for the work material P. It is determined by the relationship with accuracy and so on.
またスペーサ部材25の高さh(厚み)と熱板17の板厚の比較においては、熱板17の板厚よりもスペーサ部材25の高さhのほうが大きな値となっている。更に本発明において加圧時の上盤16の反りは許容されるものであり、スペーサ部材25の高さhと上盤16の板厚の比較においては、上盤16の厚みよりもスペーサ部材25の高さhのほうが大きな値なっている。その結果、従来のプレス装置の上盤よりも本発明では上盤16の板厚を薄くすることもできる。更に具体的には従来のプレス装置の上盤の重量に対して、本実施形態の上盤16の重量とスペーサ部材25の重量を合算した重量を同等か、更に軽量にすることができる。 Further, in the comparison between the height h (thickness) of the spacer member 25 and the plate thickness of the hot plate 17, the height h of the spacer member 25 has a larger value than the plate thickness of the hot plate 17. Further, in the present invention, the warp of the upper plate 16 at the time of pressurization is allowed, and in the comparison between the height h of the spacer member 25 and the plate thickness of the upper plate 16, the spacer member 25 is more than the thickness of the upper plate 16. The height h of is larger. As a result, in the present invention, the plate thickness of the upper plate 16 can be made thinner than that of the upper plate of the conventional press device. More specifically, the total weight of the weight of the upper plate 16 and the weight of the spacer member 25 of the present embodiment can be equal to or further reduced with respect to the weight of the upper plate of the conventional press device.
なおスペーサ部材25については所定の高さhを備えたものであれば、1個のブロック体からなるものだけではなく、複数のブロック体が組み合わされたものでもよい。またスペーサ部材25の上面または下面を凸状または凹状の球面とし、対向する上盤16の下面や熱板17の裏面を凹状または凸状の球面とし、前記球面同士が面当接されるようにしてもよい。またはスペーサ部材25が複数のブロック体から形成される場合、前記ブロック体の互いの当接面を凸状の球面と凹状の球面とし、両者が面当接されるようにしてもよい。これらにより熱板15と熱板17の平行度に僅かに誤差が生じていたとしても加圧時に前記球面同士が位置変化して熱板15と熱板17の平行度を向上させることが期待できる。更にはスペーサ部材25に断熱板等を追加して断熱機能を追加すれば、熱板17からの熱が上盤16に伝達されるのを防止することもでき、熱膨張による影響を小さくすることができる。更にまたスペーサ部材25に冷却管路を設けて冷却するようにしてもよい。 As long as the spacer member 25 has a predetermined height h, it may be not only one made of one block body but also a combination of a plurality of block bodies. Further, the upper surface or the lower surface of the spacer member 25 is formed into a convex or concave spherical surface, and the lower surface of the facing upper plate 16 and the back surface of the hot plate 17 are formed into a concave or convex spherical surface so that the spherical surfaces are in surface contact with each other. You may. Alternatively, when the spacer member 25 is formed of a plurality of block bodies, the contact surfaces of the block bodies may be a convex spherical surface and a concave spherical surface so that the two are in surface contact with each other. As a result, even if there is a slight error in the parallelism between the hot plate 15 and the hot plate 17, it can be expected that the spherical surfaces change their positions during pressurization to improve the parallelism between the hot plate 15 and the hot plate 17. .. Furthermore, if a heat insulating plate or the like is added to the spacer member 25 to add a heat insulating function, it is possible to prevent the heat from the hot plate 17 from being transferred to the upper plate 16, and the influence of thermal expansion can be reduced. Can be done. Further, the spacer member 25 may be provided with a cooling pipeline for cooling.
スペーサ部材25の円形の前端面26には下加圧部材である矩形の熱板17の裏面が固定されている。本実施形態ではスペーサ部材25の全面をカバーする形で熱板17が当接されているので、スペーサ部材25の水平方向の面積(前端面の面積)よりも熱板の水平方向の面積のほうがやや大きくなっている。しかしながらスペーサ部材25の水平方向の面積(前端面の面積)に対して熱板の水平方向の面積は略同一のものや若干熱板の水平方向の面積のほうが小さいものでもよい。 The back surface of the rectangular hot plate 17, which is a lower pressurizing member, is fixed to the circular front end surface 26 of the spacer member 25. In the present embodiment, since the hot plate 17 is in contact with the spacer member 25 so as to cover the entire surface, the area of the hot plate in the horizontal direction is larger than the area of the spacer member 25 in the horizontal direction (area of the front end surface). It's getting a little bigger. However, the horizontal area of the hot plate may be substantially the same as the horizontal area of the spacer member 25 (the area of the front end surface), or the horizontal area of the hot plate may be slightly smaller.
熱板17は上記熱板15と同じく所定の厚みを備え、下面が平面の成形面からなる盤体である。そして熱板17内には管路27が形成されており、図示しない熱媒装置から熱媒が前記管路27内に供給され熱板の加熱または冷却がなされる。なお熱板15,17については内部にヒータを組み込んだものでもよい。また下加圧部材および上加圧部材は、冷却装置から冷媒のみが供給されるコールドプレスの加圧板であってもよい。 The hot plate 17 is a plate body having a predetermined thickness like the hot plate 15 and having a flat lower surface formed of a molded surface. A pipe line 27 is formed in the hot plate 17, and a heat medium is supplied into the pipe line 27 from a heat medium device (not shown) to heat or cool the hot plate. The hot plates 15 and 17 may have a heater incorporated inside. Further, the lower pressurizing member and the upper pressurizing member may be cold press pressurizing plates to which only the refrigerant is supplied from the cooling device.
プレス装置11は、真空状態や不活性ガスの雰囲気状態で使用される場合は、開閉扉を含めたチャンバ内に装置全体が収められる。またプレス装置11には、必要に応じて被加工材Pの搬入装置や搬出装置が備えられる。 When the press device 11 is used in a vacuum state or an atmosphere state of an inert gas, the entire device is housed in a chamber including an opening / closing door. Further, the press device 11 is provided with a loading device and a unloading device for the material P to be processed, if necessary.
次にプレス装置11の成形方法について図1ないし図3を参照して説明する。まず図1に示されるようにプレス装置11の加圧シリンダ12のラム13が下降しており、それに伴い可動盤14および熱板15が下降している状態で、図示しない搬入装置により、熱板15上に被加工材Pが搬入され載置される。本発明に好適な被加工材Pは高い平行度が求められる基板等の被加工物や、加熱時にガスが発生し排出が必要な被加工材Pなどである。 Next, the molding method of the press device 11 will be described with reference to FIGS. 1 to 3. First, as shown in FIG. 1, the ram 13 of the pressurizing cylinder 12 of the press device 11 is lowered, and the movable plate 14 and the hot plate 15 are lowered accordingly, and the hot plate is lowered by a loading device (not shown). The work material P is carried in and placed on the 15. The work material P suitable for the present invention is a work material such as a substrate that requires high parallelism, a work material P that generates gas during heating and needs to be discharged.
図2に示されるように下加圧部材である熱板15の上面に配置される被加工材Pは、上方から見て前記ラム13および該ラム13に対向して配置されたスペーサ部材25の双方の断面を投影した部分内に配置される。従って被加工材Pはラム13およびスペーサ部材25の面積よりも小さいものとなっており、被加工材Pの一部がラム13の投影部分またはスペーサ部材25の投影部分からはみ出して配置されることは許容されない。熱板15と被加工材Pの関係は、熱板15上に被加工材Pの全体が載置されることは言うまでもないが、熱板15の縁部は中央部に比較して温度が低下したりして安定しない場合もあり、熱板15の中でも温度が安定している中央部側の温度安定部分に載置されることが望ましい。 As shown in FIG. 2, the work material P arranged on the upper surface of the hot plate 15 which is the lower pressurizing member is the ram 13 and the spacer member 25 arranged to face the ram 13 when viewed from above. It is placed in the projected portion of both cross sections. Therefore, the work material P is smaller than the area of the ram 13 and the spacer member 25, and a part of the work material P is arranged so as to protrude from the projected portion of the ram 13 or the projected portion of the spacer member 25. Is not allowed. Regarding the relationship between the hot plate 15 and the work material P, it goes without saying that the entire work material P is placed on the hot plate 15, but the temperature of the edge portion of the hot plate 15 is lower than that of the central portion. In some cases, it may not be stable, and it is desirable that the hot plate 15 be placed on the temperature-stable portion on the central portion side where the temperature is stable.
被加工材Pについては、基板等が重ねられたものでも単体のものでもよく、厚み、形状、個数についても限定されない。また被加工材Pについては、上下にプレスプレートや緩衝材が重ねられたものでもよい。その場合、直接加圧力または反力が及ばないプレスプレート等の端部はラム13の投影部分またはスペーサ部材25の投影部分からはみ出していても構わない。従って本発明(請求項4)において直接加圧力または反力が及ばないプレスプレート等は、被加工材Pに含まれない。 The work material P may be a material in which substrates or the like are stacked or a single material, and the thickness, shape, and number are not limited. Further, the work material P may be a material in which press plates and cushioning materials are stacked one above the other. In that case, the end portion of the press plate or the like that is not directly subjected to the pressing force or the reaction force may protrude from the projected portion of the ram 13 or the projected portion of the spacer member 25. Therefore, in the present invention (claim 4), the press plate or the like that is not directly subjected to the pressing force or the reaction force is not included in the work material P.
そして熱板15上に被加工材Pの載置が完了すると、真空チャンバを用いたプレス装置11の場合は、チャンバ内の真空化がなされ、次に加圧シリンダ12の油室18に作動油が供給されラム13を上昇させる。そして熱板15上の被加工材Pが熱板17の下面に当接され、更に加圧シリンダ12の油室18が昇圧されて加圧成形が行われる。またこれらと前後して熱板15,17の昇温制御が行われる。この際、図3に示されるように加圧シリンダ12の加圧力により上盤16のタイバ21が固定される部分は反力を受けて下方に向けて牽引され、上盤16はその中央下面が凹状に窪む形に湾曲する。また基台部20については反対にタイバ21が固定される部分が上方に向けて牽引され、中央側が凹状に窪む形に湾曲する。そしてタイバ21には伸びが生じて加圧力が発生する。 When the placement of the work material P on the hot plate 15 is completed, in the case of the press device 11 using the vacuum chamber, the inside of the chamber is evacuated, and then the hydraulic oil is placed in the oil chamber 18 of the pressure cylinder 12. Is supplied to raise the ram 13. Then, the material P to be processed on the hot plate 15 is brought into contact with the lower surface of the hot plate 17, and the oil chamber 18 of the pressure cylinder 12 is further boosted to perform pressure molding. Further, before and after these, the temperature rise control of the hot plates 15 and 17 is performed. At this time, as shown in FIG. 3, the portion where the tie bar 21 of the upper plate 16 is fixed by the pressing force of the pressure cylinder 12 receives a reaction force and is pulled downward, and the upper plate 16 has a lower center surface thereof. It is curved in a concave shape. On the contrary, with respect to the base portion 20, the portion to which the tie bar 21 is fixed is pulled upward, and the central side is curved in a concave shape. Then, the tie bar 21 is stretched and a pressing force is generated.
しかしながら本発明では、上盤16が湾曲しても上盤16の厚みよりも高さhの寸法が大きいスペーサ部材25が上盤16の下面に固定されているので、スペーサ部材25の湾曲は非常に小さいものとなる。その結果スペーサ部材25を介して上盤16に固定されている上加圧部材である熱板17は殆ど湾曲することがない。また基台部20の湾曲は可動盤14には影響を及ぼさず、可動盤14と可動盤14に固定された熱板15は湾曲されない。この際、熱板15上に載置されている被加工材Pは、上方から見てラム13およびスペーサ部材25の双方の断面を投影した部分内に配置されている。従って被成形材Pは、ラム13による加圧により、前記の平坦な熱板15から加圧力が加えられるとともに、スペーサ部材25を介して前記の平坦な熱板17から反力が加えられることにより、両方の熱板15,17の間で均等に加圧される。その結果、平行度に優れた被加工材Pを加圧成形することができる。 However, in the present invention, even if the upper plate 16 is curved, the spacer member 25 having a height h larger than the thickness of the upper plate 16 is fixed to the lower surface of the upper plate 16, so that the curvature of the spacer member 25 is extremely high. Will be small. As a result, the hot plate 17 which is the upper pressurizing member fixed to the upper plate 16 via the spacer member 25 is hardly curved. Further, the curvature of the base portion 20 does not affect the movable platen 14, and the movable platen 14 and the hot plate 15 fixed to the movable platen 14 are not curved. At this time, the work material P placed on the hot plate 15 is arranged in a portion where the cross sections of both the ram 13 and the spacer member 25 are projected when viewed from above. Therefore, the material P to be molded is pressed by the ram 13 to apply a pressing force from the flat hot plate 15 and a reaction force from the flat hot plate 17 via the spacer member 25. , Is evenly pressurized between both hot plates 15 and 17. As a result, the work material P having excellent parallelism can be pressure-molded.
次に別の実施形態について説明する。本発明のプレス装置は、可動盤に取付けられる熱板と上盤に取付けられる熱板の間に、特許文献1ないし特許文献3のように複数の中間熱板を備えたものでもよい。3枚以上の熱板を備えたプレス装置に本発明を採用した場合においても、中間熱板間の平行度は、可動盤とスペーサの強度以下の数値となるため改善可能である。 Next, another embodiment will be described. The press device of the present invention may be provided with a plurality of intermediate hot plates as in Patent Documents 1 to 3 between the hot plate attached to the movable platen and the hot plate attached to the upper plate. Even when the present invention is adopted for a press device provided with three or more hot plates, the parallelism between the intermediate hot plates can be improved because the value is equal to or less than the strength of the movable plate and the spacer.
また本発明のプレス装置11は当初からスペーサ部材25の取付けを前提として設計がなされたものである。しかしながら所定の高さを備えたスペーサ部材は、既存のプレス装置の上盤に取付けた場合であっても、上盤の反りが被加工材に及ばないという効果を発揮することができる。ただし既存のプレス装置にスペーサ部材を取付ける場合は、一番上の中間熱板を除去する等の措置が必要となる場合もある。また既存のプレス装置にスペーサ部材を取付けた場合は、プレス装置の上盤を薄くするという効果は望めない。 Further, the press device 11 of the present invention has been designed from the beginning on the premise that the spacer member 25 is attached. However, the spacer member having a predetermined height can exhibit the effect that the warp of the upper plate does not reach the material to be processed even when it is attached to the upper plate of the existing pressing device. However, when mounting the spacer member on the existing press device, it may be necessary to take measures such as removing the uppermost intermediate hot plate. Further, when the spacer member is attached to the existing press device, the effect of thinning the upper plate of the press device cannot be expected.
更にまた、プレス装置11は、可動盤14と下加圧部材である熱板15との間にも上盤16の側に設けたような所定の高さを備えたスペーサ部材を設けてもよい。上記したように加圧成形時には可動盤14に撓みは発生しないが、上下の熱板15,17からの加圧条件(反力を含む)を近付けること等の効果が期待できる。またスペーサ部材に断熱効果が期待できる場合は熱板15から可動盤14への熱伝導を防ぐ効果もある。 Furthermore, the press device 11 may also be provided with a spacer member having a predetermined height as provided on the side of the upper plate 16 between the movable plate 14 and the hot plate 15 which is a lower pressurizing member. .. As described above, the movable platen 14 does not bend during pressure forming, but effects such as bringing the pressure conditions (including reaction force) from the upper and lower hot plates 15 and 17 closer can be expected. Further, when the spacer member can be expected to have a heat insulating effect, it also has an effect of preventing heat conduction from the hot plate 15 to the movable plate 14.
更にまた、プレス装置11の上加圧部材および下加圧部材については、キャビティ面を備えたものでもよい。その場合、上方から投影視した場合、少なくともキャビティ面の部分がラム13およびスペーサ部材25の断面の範囲内にあることが望ましく、上加圧部材、下加圧部材全体が前記ラム13およびスペーサ部材25の前記断面の範囲内にあることがより一層望ましい。上加圧部材および下加圧部材にキャビティ面を設ける場合、上加圧部材および下加圧部材のいずれか、またはスペーサ部材に突出機構を設けてもよい。このようなスペーサ部材に突出機構を設ける目的やスペーサ部材に冷却機構を設ける目的があることからもスペーサ部材は、完全に中実なブロック体以外のものも含まれる。 Furthermore, the upper pressurizing member and the lower pressurizing member of the press device 11 may be provided with a cavity surface. In that case, when projected from above, it is desirable that at least the cavity surface portion is within the cross section of the ram 13 and the spacer member 25, and the upper pressurizing member and the lower pressurizing member as a whole are the ram 13 and the spacer member. It is even more desirable to be within the range of 25 said cross sections. When the upper pressurizing member and the lower pressurizing member are provided with the cavity surface, either the upper pressurizing member or the lower pressurizing member, or the spacer member may be provided with a projecting mechanism. The spacer member includes a block body other than a completely solid block body for the purpose of providing the protrusion mechanism on the spacer member and the purpose of providing the cooling mechanism on the spacer member.
本実施形態のプレス装置11は、加圧シリンダ12により圧力制御を行うものであるが、位置センサを取付け、位置制御や速度制御の要素による加圧成形を行うプレス装置、また圧力制御の要素に位置制御や速度制御の要素に加えて加圧成形を行うプレス装置であってもよい。 The press device 11 of the present embodiment controls pressure by a pressure cylinder 12, but it can be used as a press device in which a position sensor is attached and pressure molding is performed by elements of position control and speed control, and an element of pressure control. It may be a press device that performs pressure molding in addition to the elements of position control and speed control.
本発明については、一々列挙はしないが、上記した実施形態のものに限定されず、当業者が本発明の趣旨を踏まえて変更を加えたものや、上記の実施形態の各部を組み合わせたものについても、適用されることは言うまでもないことである。 Although the present invention is not listed one by one, it is not limited to those of the above-described embodiments, but those modified by those skilled in the art based on the gist of the present invention and those in which the above-described embodiments are combined. Needless to say, it applies.
11 プレス装置
12 加圧シリンダ
13 ラム
14 可動盤
15 熱板(下加圧部材)
17 熱板(上加圧部材)
16 上盤
25 スペーサ部材
h 高さ(スペーサ部材の高さ)
P 被加工材
11 Press device 12 Pressurizing cylinder 13 Ram 14 Movable plate 15 Hot plate (lower pressurizing member)
17 Hot plate (upper pressurizing member)
16 Upper board 25 Spacer member h Height (height of spacer member)
P Work material
Claims (4)
上盤と上加圧部材の間には前記ラムに対向して間接的に被加工材に反力を加える所定の高さを備えたスペーサ部材が取付けられたことを特徴とするプレス装置。 In a press device in which a lower pressurizing member provided on the movable platen side is raised by a ram of a pressurizing cylinder and a work material is pressed between the lower pressurizing member and the upper pressurizing member provided on the upper plate side.
A press device characterized in that a spacer member having a predetermined height that indirectly applies a reaction force to a work material is attached between the upper plate and the upper pressurizing member so as to face the ram.
上盤と上加圧部材の間には前記ラムに対向して前記ラムの水平方向の断面積に対して95%ないし110%の水平方向の断面積と所定の高さを備えたスペーサ部材が取付けられたことを特徴とするプレス装置。 In a press device in which a lower pressurizing member provided on the movable platen side is raised by a ram of a pressurizing cylinder and a work material is pressed between the lower pressurizing member and the upper pressurizing member provided on the upper plate side.
Between the upper plate and the upper pressurizing member, a spacer member having a horizontal cross section of 95% to 110% and a predetermined height with respect to the horizontal cross section of the ram facing the ram is provided. A press device characterized by being installed.
上盤と上加圧部材の間には前記ラムに対向して間接的に被加工材に反力を加える所定の高さを備えたスペーサ部材が取付けられ、
前記被加工材は上加圧部材の前記ラムおよびスペーサ部材の双方の断面を投影した部分内に配置され、前記ラムにより加圧されることを特徴とするプレス装置の成形方法。
In a molding method of a press device in which a lower pressurizing member provided on the movable platen side is raised by a ram of a pressurizing cylinder and a work material is pressed between the lower pressurizing member and the upper pressurizing member provided on the upper plate side. ,
A spacer member having a predetermined height that indirectly applies a reaction force to the work material facing the ram is attached between the upper plate and the upper pressurizing member.
A method for forming a press device, wherein the material to be processed is arranged in a projected portion of both a ram and a spacer member of the upper pressurizing member, and is pressurized by the ram.
Priority Applications (1)
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