JP2007331276A - Parallelism adjusting mechanism and press-molding device using the parallelism adjusting mechanism, and parallelism adjusting method of the press-molding device - Google Patents
Parallelism adjusting mechanism and press-molding device using the parallelism adjusting mechanism, and parallelism adjusting method of the press-molding device Download PDFInfo
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- 238000000465 moulding Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 64
- 238000006073 displacement reaction Methods 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims description 14
- 230000003028 elevating effect Effects 0.000 claims description 14
- 238000003825 pressing Methods 0.000 claims description 8
- 230000001174 ascending effect Effects 0.000 abstract 5
- 238000001514 detection method Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000001721 transfer moulding Methods 0.000 description 1
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- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
本発明は平行調整機構および該平行調整機構を用いる加圧成型装置、ならびに該加圧成型装置の平行調整法に関する。さらに詳しくは、加圧成型において、金型と下熱盤の平行調整を容易かつ高精度に行うことができ、勘に頼らずに短時間の調整作業で精密加圧を行うができる平行調整機構および該平行調整機構を用いる加圧成型装置、ならびに該加圧成型装置の平行調整法に関する。 The present invention relates to a parallel adjustment mechanism, a pressure molding apparatus using the parallel adjustment mechanism, and a parallel adjustment method for the pressure molding apparatus. More specifically, in pressure molding, a parallel adjustment mechanism that allows easy and high-precision parallel adjustment of the mold and the lower heating plate, and allows precise pressure application in a short time without relying on intuition. And a pressure molding apparatus using the parallel adjustment mechanism, and a parallel adjustment method of the pressure molding apparatus.
近年、ホットエンボスまたはナノインプリントと呼ばれる成型方法が行われている。これは微細な加工を施した金型を樹脂やガラスなどのワークに押し付けたまま加熱、冷却を行い転写成型する方法で、非常に精密な転写が可能である。しかし、精密な転写を行うためには、金型と下熱盤に載置されるワークとの平行度を１μｍ以下の精度に保たなければいけない。もし、平行が保たれていないと、離型するときに金型とワークが傾いて離型するため、せっかく転写された形状が崩れたり、変形したりして不良品となってしまう。 In recent years, a molding method called hot embossing or nanoimprinting has been performed. This is a method of performing transfer molding by heating and cooling while pressing a finely processed mold against a work such as resin or glass, and very precise transfer is possible. However, in order to perform precise transfer, the parallelism between the mold and the workpiece placed on the lower heating plate must be maintained at an accuracy of 1 μm or less. If the parallelism is not maintained, when the mold is released, the mold and the workpiece are tilted and released, so that the transferred shape is broken or deformed, resulting in a defective product.
従来、金型とワークの平行度を調整するために、押しボルトにより金型を傾けたり、薄いシム板を挟んだりして行っている。しかし、シム板では微調整が利かないため、精密な調整が困難であり、さらに平行調整作業に熟練を要し、実用的ではない。また、押しボルトにて傾き調整をする方法では、細目ねじを使用しても一回転当たりの変位量が大きく微調整が困難である。また、ネジ部の遊びやリード誤差があるため、押しボルトを回しても金型が比例して移動しない。このため、調整は勘に頼ることとなり、押しボルトの調整と圧力分布の測定の調整・測定を繰り返し行うため作業時間が長くなってしまう。 Conventionally, in order to adjust the parallelism between the mold and the workpiece, the mold is tilted with a push bolt or a thin shim plate is sandwiched. However, since the shim plate does not allow fine adjustment, precise adjustment is difficult, and further, parallel adjustment work requires skill and is not practical. Further, in the method of adjusting the tilt with a push bolt, even if a fine screw is used, the displacement amount per rotation is large and fine adjustment is difficult. Further, since there is play and lead error of the screw part, the mold does not move in proportion even if the push bolt is turned. For this reason, the adjustment depends on intuition, and the adjustment of the push bolt and the adjustment / measurement of the measurement of the pressure distribution are repeated, so that the work time becomes long.
この作業時間を短縮するために、金型に高精度の測定器を取り付け、変位量を計りながら平行度調整を行えば短時間で調整可能である。しかしながら、微小な変位量を測定できる測定器は高価であり、金型の四隅に夫々測定器を取り付けると更にコストがかさむことになる。１個の測定器で調整を行う場合は、各四隅を順番に測定しながら押しボルトを調整することとなり、やはり、調整に手間取り作業時間が長くなってしまう。さらに、金型自体の厚み公差や組付け精度により金型と下熱盤の平行度が微妙に違ってくるため、この平行度調整作業は金型を交換する毎に行わなければならず、作業時間の多くを占め、大きな間題となっている。 In order to shorten this working time, it is possible to adjust in a short time by attaching a high-precision measuring instrument to the mold and adjusting the parallelism while measuring the amount of displacement. However, a measuring instrument that can measure a minute amount of displacement is expensive, and attaching the measuring instrument to each of the four corners of the mold further increases the cost. When the adjustment is performed with one measuring instrument, the push bolt is adjusted while measuring the four corners in turn, and the time-consuming work time for the adjustment is increased. Furthermore, since the parallelism between the mold and the lower heating plate differs slightly depending on the thickness tolerance and assembly accuracy of the mold itself, this parallelism adjustment work must be performed every time the mold is replaced. It takes up a lot of time and is a big challenge.
そこで、本発明は、叙上の事情に鑑み、加圧成型における、金型とワークを載置する下熱盤との平行調整を短時間で高精度に行うことができる平行調整機構および該平行調整機構を用いる加圧成型装置、ならびに該加圧成型装置の平行調整法を提供することを目的とする。 Therefore, in view of the above circumstances, the present invention provides a parallel adjustment mechanism capable of performing parallel adjustment between a mold and a lower heating plate on which a workpiece is placed in pressure molding in a short time with high accuracy, and the parallel adjustment mechanism. It is an object of the present invention to provide a pressure molding apparatus using an adjustment mechanism and a parallel adjustment method for the pressure molding apparatus.
本発明の請求項１記載の平行調整機構は、加圧成型装置に用いられる、定盤の上部に配置される下熱盤と、可動昇降板の下部に上熱盤を介して配置される金型との平行を調整する平行調整機構であって、前記可動昇降板と上熱盤とのあいだで該上熱盤の上部に配設される傾動板と、前記可動昇降板の少なくとも３箇所の部位に配置されているとともに、該可動昇降板を通して前記傾動板に連結し、該傾動板を傾動させる平行調整手段と、前記可動昇降板に連結されているとともに、前記傾動板の傾動量を変位として検出する変位検出手段とを具備してなることを特徴としている。 The parallel adjustment mechanism according to claim 1 of the present invention is a gold plate disposed in the upper part of the surface plate and the lower part of the movable elevating plate, which is used in the pressure molding apparatus, via the upper heat disk. A parallel adjustment mechanism that adjusts the parallelism with the mold, and a tilting plate disposed above the upper heating plate between the movable lifting plate and the upper heating plate; and at least three portions of the movable lifting plate And a parallel adjusting means for tilting the tilting plate, and being connected to the movable lifting plate and displacing the tilting amount of the tilting plate. It is characterized by comprising displacement detecting means for detecting as follows.
また、本発明の請求項６記載の加圧成型装置は、定盤と、該定盤の上部に配置される下熱盤と、該下熱盤に対向して上方に配設され、昇降ロッドにより昇降可能な可動昇降板と、該可動昇降板の下部に配置される上熱盤および金型とを備える加圧成型装置であって、前記下熱盤と金型との平行を調整する請求項１記載の平行調整機構を具備してなることを特徴としている。 According to a sixth aspect of the present invention, there is provided a pressure molding apparatus comprising: a surface plate; a lower heating plate disposed on the upper surface of the surface plate; A pressure molding apparatus comprising a movable elevating plate that can be moved up and down by means of, an upper heating plate and a mold disposed below the movable elevating plate, wherein the parallelism between the lower heating plate and the mold is adjusted. The parallel adjustment mechanism according to Item 1 is provided.
さらに、本発明の加圧成型装置の平行調整法は、前記請求項６記載の加圧成型装置における前記下熱盤と金型との平行を調整する方法であって、前記下熱盤に感圧紙を載せる工程と、前記可動昇降板を降下させて前記金型を該感圧紙に押圧する工程と、当該押圧後、該感熱紙から前記下熱盤に対する金型の圧力分布を測定する工程と、当該測定される圧力分布が均一になるように、前記平行調整手段を調整して前記下熱盤と金型との平行を調整する工程とを含むことを特徴としている。 Further, the parallel adjustment method of the pressure molding apparatus of the present invention is a method of adjusting the parallelism between the lower heating plate and the mold in the pressure molding device according to claim 6, wherein the lower heating plate is sensitive. A step of placing a pressure paper, a step of lowering the movable elevating plate to press the mold against the pressure sensitive paper, and a step of measuring a pressure distribution of the mold from the thermal paper to the lower heating plate after the pressing. And adjusting the parallel adjustment means to adjust the parallelism between the lower heating plate and the mold so that the measured pressure distribution becomes uniform.
また、本発明の加圧成型装置の平行調整法は、前記請求項６記載の加圧成型装置における前記下熱盤と金型との平行を調整する方法であって、前記下熱盤に圧力センサを載せる工程と、前記可動昇降板を降下させて前記金型を該センサに押圧する工程と、当該押圧後、該センサから出力される信号から前記下熱盤に対する金型の圧力分布を測定する工程と、当該測定される圧力分布が均一になるように、前記平行調整手段を調整して前記下熱盤と金型との平行を調整する工程とを含むことを特徴としている。 Moreover, the parallel adjustment method of the pressure molding apparatus of this invention is a method of adjusting the parallelism of the said lower heating board and metal mold | die in the pressure molding apparatus of the said Claim 6, Comprising: Pressure is applied to the said lower heating board. A step of placing a sensor, a step of lowering the movable elevating plate to press the mold against the sensor, and a pressure distribution of the mold against the lower heating plate from the signal output from the sensor after the pressing And adjusting the parallel adjustment means so that the measured pressure distribution becomes uniform, and adjusting the parallelism between the lower heating plate and the mold.
本発明によれば、金型と下熱盤の平行調整を、勘に頼らない数値により短時間で高精度に行うことができる。 According to the present invention, the parallel adjustment of the mold and the lower heating plate can be performed with high accuracy in a short time using numerical values that do not depend on intuition.
以下、添付図面に基づいて、本発明の平行調整機構および該平行調整機構を用いる加圧成型装置、ならびに該加圧成型装置の平行調整法を説明する。本発明の一実施の形態にかかわる加圧成型装置は、図１に示されるように、定盤（下固定板）１と、該定盤１の上部に配置されるヒータ（図示せず）を組み込んだ下熱盤２と、該下熱盤２に対向して上方に配設される可動昇降板３と、該可動昇降板３の下部に配置されるヒータ（図示せず）を組み込んだ上熱盤４および金型５と、平行調整機構Ａとを具備している。前記可動昇降板３は、加圧成型装置に備わっている昇降・加圧機構（図示せず）の昇降ロッド（図示せず）により上下方向に昇降できるようにされている。また、前記平行調整機構Ａは、前記下熱盤４と金型５との平行を調整するための傾動板１１、平行調整手段Ｂおよび変位検出手段Ｃを具備している。 Hereinafter, a parallel adjustment mechanism of the present invention, a pressure molding apparatus using the parallel adjustment mechanism, and a parallel adjustment method of the pressure molding apparatus will be described with reference to the accompanying drawings. As shown in FIG. 1, a pressure molding apparatus according to an embodiment of the present invention includes a surface plate (lower fixed plate) 1 and a heater (not shown) disposed on the upper surface of the surface plate 1. A built-in lower heating plate 2, a movable elevating plate 3 disposed above the lower heating plate 2, and a heater (not shown) arranged below the movable elevating plate 3 A heating platen 4 and a mold 5 and a parallel adjustment mechanism A are provided. The movable elevating plate 3 can be moved up and down by an elevating rod (not shown) of an elevating / pressing mechanism (not shown) provided in the pressure molding apparatus. The parallel adjustment mechanism A includes a tilting plate 11 for adjusting the parallelism between the lower heating plate 4 and the mold 5, parallel adjustment means B, and displacement detection means C.
前記傾動板１１は、前記可動昇降板３と上熱盤４とのあいだにおいて、該上熱盤４の上部に固着されている。本実施の形態では、該傾動板１１は、上熱盤４の上面に直接固着されているが、たとえば前記上熱盤と可動昇降板３とのあいだのスペースに、該傾動板１１と可動昇降板３とのあいだの所定の隙間が確保されるのであれば、スペーサ部材などの高さ調整部材を介して前記上熱盤４の上部に配設することもできる。 The tilting plate 11 is fixed to the upper portion of the upper heating plate 4 between the movable elevating plate 3 and the upper heating plate 4. In the present embodiment, the tilting plate 11 is directly fixed to the upper surface of the upper heating platen 4. For example, in the space between the upper heating platen and the movable lifting plate 3, the tilting plate 11 and the movable lifting platen are moved. If a predetermined gap between the plate 3 and the plate 3 is ensured, it can be disposed on the upper heating plate 4 via a height adjusting member such as a spacer member.
前記平行調整手段Ｂは、前記可動昇降板３の４箇所（四隅）の部位に配置され、該可動昇降板３を通して前記傾動板１１に連結している。該平行調整手段Ｂとしては、傾動板１１を傾動させることができる手段であれば、とくに限定されるものではなく、たとえばネジ要素などを適宜選定することができるが、本実施の形態では、高さ調整ネジを微調整可能な差動ネジ１２が用いられている。この差動ネジ１２のスライド可能なナット部材１２ａが前記傾動板１１に固定されている。前記差動ネジ１２は、内外のネジのピッチ差が一回転当たりの移動量となり、本実施の形態では、ピッチ差が３６μｍの差動ネジを作製し、該差動ネジを1°回した場合の移動量が０．１μｍとなるように設定されている。通常ネジではピッチ０．７ｍｍ程度が限界であり1°当たりの移動量２μｍとなり、差動ネジ１２では通常ネジに比べて２０倍近くの精度で調整が可能である。また、前記差動ネジ１２には、上下動を固定するクランプ機構として、送りねじの回転を防止するためのクランプレバー１３が夫々に配置されている。なお、差動ネジ１２は、前記可動昇降板３の４箇所の部位に配置されているが、本発明においては、これに限定されるものではなく、少なくとも３箇所の部位に配置することができる。 The parallel adjusting means B is disposed at four locations (four corners) of the movable lifting plate 3 and is connected to the tilting plate 11 through the movable lifting plate 3. The parallel adjusting means B is not particularly limited as long as it can tilt the tilting plate 11, and for example, a screw element or the like can be selected as appropriate. A differential screw 12 that can finely adjust the height adjusting screw is used. A slidable nut member 12 a of the differential screw 12 is fixed to the tilt plate 11. In the differential screw 12, the pitch difference between the inner and outer screws is the amount of movement per rotation, and in the present embodiment, a differential screw having a pitch difference of 36 μm is produced and the differential screw is turned by 1 °. Is set to be 0.1 μm. With a normal screw, the limit is about 0.7 mm, and the amount of movement per 1 ° is 2 μm, and the differential screw 12 can be adjusted with an accuracy nearly 20 times that of a normal screw. Each differential screw 12 is provided with a clamp lever 13 for preventing the rotation of the feed screw as a clamp mechanism for fixing the vertical movement. In addition, although the differential screw 12 is arrange | positioned in the four site | parts of the said movable raising / lowering board 3, in this invention, it is not limited to this, It can arrange | position in the at least 3 site | parts. .
前記変位検出手段Ｃは、前記可動昇降板３に連結されているとともに、前記傾動板１１の傾動量を変位として検出することができる手段であれば、本発明においては、とくに限定されるものではないが、本実施の形態では、ダイヤルゲージの変位計１４が用いられている。また、この変位計１４は、前記傾動板１１の四隅に、前記定盤１の外側へ張り出した張り出し部としてのアーム１４に検出部１４ａの先端が接触するように連結部材１５を介して取り付けられている。これにより、前記傾動板１１が傾くとこのアーム１４が一緒に傾くため、該傾きを増幅させた傾斜量として測定することができる。このとき、金型５の傾きは、アーム１４の検出部１４ａにおいて、金型５の大きさとアーム１４までの長さの比率に応じた量に拡大されるので、金型面５ａの微小な傾きを増幅し測定することができる。このため、高精度で高価な変位計を使う必要はなく、低精度で安価な変位計を使うことができるため、製造コストを低減することができる。 The displacement detecting means C is not particularly limited in the present invention as long as it is connected to the movable elevating plate 3 and can detect the amount of tilting of the tilting plate 11 as a displacement. In this embodiment, a dial gauge displacement meter 14 is used. The displacement meter 14 is attached to the four corners of the tilting plate 11 via a connecting member 15 so that the tip of the detecting portion 14a comes into contact with an arm 14 as an overhanging portion that protrudes to the outside of the surface plate 1. ing. As a result, when the tilting plate 11 is tilted, the arm 14 tilts together, so that the tilt can be measured as an amplified amount of tilt. At this time, since the inclination of the mold 5 is enlarged to an amount corresponding to the ratio of the size of the mold 5 to the length of the arm 14 in the detection unit 14a of the arm 14, the inclination of the mold surface 5a is very small. Can be amplified and measured. For this reason, it is not necessary to use a high-precision and expensive displacement meter, and a low-precision and inexpensive displacement meter can be used, so that the manufacturing cost can be reduced.
なお、前記アーム１４を長くすれば、増幅率も大きくなり精度は向上するが、フットスペースの関係から、むやみには大きくすることができず、５〜１０倍程度が好適である。本実施の形態では、金型寸法７５ｍｍに対しアーム１４の長さを３７５ｍｍとして、５倍の増幅率としている。すなわち、差動ネジを１°回すと、０．１μｍ／５＝０．０２μｍ移動することになる。また、変位計１４の動きを直読しながら調整を行うため、従来技術の問題点で述べたネジ部の遊びやリード誤差を無視することができ、勘に頼らない数値による高精度な調整を行うことができる。 If the arm 14 is lengthened, the gain is increased and the accuracy is improved. However, due to the foot space, it cannot be increased unnecessarily, and about 5 to 10 times is preferable. In the present embodiment, the length of the arm 14 is 375 mm with respect to the mold dimension 75 mm, and the amplification factor is five times. That is, when the differential screw is turned by 1 °, it moves by 0.1 μm / 5 = 0.02 μm. Further, since the adjustment is performed while directly reading the movement of the displacement meter 14, the play of the screw part and the lead error described in the problem of the prior art can be ignored, and the high-precision adjustment using numerical values that do not depend on intuition is performed. be able to.
つぎに、このように構成される加圧成型装置の動作について説明する。始めに金型５と下熱盤２の平行度を出す調整作業を行う。まず、上熱盤４に金型５を取り付けたのち、下熱盤２の上に圧力により発色する感圧紙をセットする。ここで、該感圧紙に代えて圧力分布を測定できるセンサ、たとえばタクタイルセンサ（ニッタ（株）製）を載置することもできる。このセンサを用いる場合、該センサから出力される信号から圧力分布を測定するための表示部や演算部などからなる機器を備えておく。 Next, the operation of the pressure molding apparatus configured as described above will be described. First, adjustment work for obtaining the parallelism between the mold 5 and the lower heating plate 2 is performed. First, after the mold 5 is attached to the upper heating platen 4, pressure sensitive paper that develops color by pressure is set on the lower heating platen 2. Here, instead of the pressure sensitive paper, a sensor capable of measuring the pressure distribution, for example, a tactile sensor (manufactured by Nitta Corporation) can be placed. When this sensor is used, a device including a display unit, a calculation unit, and the like for measuring a pressure distribution from a signal output from the sensor is provided.
ついで、昇降・加圧機構を作動させて可動昇降板３とともに金型５を降下して、前記下熱盤２の上に載置される感圧紙を押し付ける。そして、このときの下熱盤２に対する金型５の圧力分布を測定し、現在の平行度の度合いを確認する。具体的には、実際に加圧する圧力に合わせ感圧紙を選択し、金型寸法より一回り大きく切り取り、下熱盤の上に置く。そして、１８０℃程度までは加熱に耐えるので、加工条件に合せて加熱し、加圧する。加圧され赤色した感圧紙を目視または読み取り装置にて圧力分布を測定する。 Next, the lifting / pressurizing mechanism is operated to lower the mold 5 together with the movable lifting plate 3 and press the pressure-sensitive paper placed on the lower heating plate 2. And the pressure distribution of the metal mold | die 5 with respect to the lower heating board 2 at this time is measured, and the present degree of parallelism is confirmed. Specifically, pressure-sensitive paper is selected according to the pressure to be actually pressed, cut out one size larger than the mold size, and placed on the lower heating platen. And since it withstands heating up to about 180 ° C., it is heated and pressurized according to the processing conditions. The pressure distribution is measured visually or with a reading device on the pressure-sensitive red pressure-sensitive paper.
ついで、前記４箇所に配置した差動ネジ１２を調整し、圧力分布が均一になるようにする。具体的には、圧力の高い部分の差動ネジ１２のクランプレバー１３を緩め、該差動ネジ１２を縮む方向に回すことにより、前記傾動板１１を傾けて下熱盤２に対する金型５の平行度を調整する。このようにして、金型５と下熱盤２の平行度を調整し、成型作業前の準備作業を終了する。 Next, the differential screws 12 arranged at the four positions are adjusted so that the pressure distribution becomes uniform. Specifically, by loosening the clamp lever 13 of the differential screw 12 at a high pressure portion and turning the differential screw 12 in the contracting direction, the tilt plate 11 is tilted so that the mold 5 with respect to the lower heating plate 2 Adjust the parallelism. In this way, the parallelism between the mold 5 and the lower heating plate 2 is adjusted, and the preparatory work before the molding work is completed.
つぎに、前記下熱盤２にワークＷをセットし、昇降・加圧機構を作動させて金型５をワークＷに押し付けて、成型作業を実施する。この成型作業は、下熱盤２にワークＷとして熱可塑性樹脂、たとえばメタクリル樹脂（ＰＭＭＡ）をセットし、昇降・加圧機構により可動昇降板３を降下させ金型５を下熱盤２上のワークＷに押し付ける。このときの圧力は材質や、金型により変わるが、５〜３０ｋＮで加圧される。ついで、前記上下熱盤２、４に組み込まれたヒータを加熱し、所定温度である熱可塑性樹脂の軟化点（ガラスの場合はガラス転移点Ｔｇ点）以上、本実施の形態の場合は１５０〜１８０℃に加熱した。ついで、昇温後、数分間保持し室温まで冷却したのち、金型５を上昇させ、金型５とワークＷを離型する。そして、ワークＷを取り出す作業を行って、一連の成型作業を終了する。 Next, the work W is set on the lower heating platen 2, the lifting / pressurizing mechanism is operated, the die 5 is pressed against the work W, and the molding operation is performed. In this molding operation, a thermoplastic resin, for example, methacrylic resin (PMMA) is set as the work W on the lower heating platen 2, the movable lifting plate 3 is lowered by the lifting / pressurizing mechanism, and the mold 5 is placed on the lower heating platen 2. Press against work W. Although the pressure at this time changes with materials and a metal mold | die, it is pressurized by 5-30 kN. Subsequently, the heaters incorporated in the upper and lower heating plates 2 and 4 are heated to a temperature equal to or higher than the softening point (the glass transition point Tg in the case of glass) of the thermoplastic resin, which is a predetermined temperature. Heated to 180 ° C. Next, after the temperature rises, the mold 5 is raised after being held for several minutes and cooled to room temperature, and the mold 5 and the workpiece W are released. And the operation | work which takes out the workpiece | work W is performed and a series of shaping | molding operation | work is complete | finished.
以上、本実施の形態では、熱可塑性樹脂の成型について説明したが、本発明は、これに限定されるものではなく、ガラス成型、紫外線（ＵＶ光）と石英ガラス型を用いた成型においても適用することができる。 As described above, in the present embodiment, the molding of the thermoplastic resin has been described. However, the present invention is not limited to this, and is also applicable to glass molding, molding using ultraviolet light (UV light) and a quartz glass mold. can do.
Ａ 平行調整機構
Ｂ 平行調整手段
Ｃ 変位検出手段
１ 定盤
２ 下熱盤
３ 可動昇降板
４ 上熱盤
５ 金型
１１ 傾動板
１２ 差動ネジ
１２ａ ナット部材
１３ クランプレバー
１４ 変位計
１４ａ 検出部
１５ 連結部材
A parallel adjustment mechanism B parallel adjustment means C displacement detection means 1 surface plate 2 lower heating plate 3 movable elevating plate 4 upper heating plate 5 mold 11 tilting plate 12 differential screw 12a nut member 13 clamp lever 14 displacement meter 14a detection unit 15 Connecting member
Claims (8)
前記可動昇降板と上熱盤とのあいだで該上熱盤の上部に配設される傾動板と、
前記可動昇降板の少なくとも３箇所の部位に配置されているとともに、該可動昇降板を通して前記傾動板に連結し、該傾動板を傾動させる平行調整手段と、
前記可動昇降板に連結されているとともに、前記傾動板の傾動量を変位として検出する変位検出手段
とを具備してなる平行調整機構。 A parallel adjustment mechanism for adjusting the parallelism between a lower heating plate disposed on the upper surface of the surface plate and a mold disposed on the lower portion of the movable lifting plate via the upper heating plate, which is used in the pressure molding apparatus. ,
A tilting plate disposed on the upper heating plate between the movable lifting plate and the upper heating plate;
Parallel adjustment means disposed at at least three locations of the movable lifting plate, coupled to the tilting plate through the movable lifting plate, and tilting the tilting plate;
A parallel adjustment mechanism connected to the movable elevating plate and comprising a displacement detecting means for detecting the amount of tilting of the tilting plate as a displacement.
前記下熱盤と金型との平行を調整する請求項１、２、３、４または５記載の平行調整機構を具備してなる加圧成型装置。 A surface plate, a lower heating plate disposed on the upper surface of the surface plate, a movable lifting plate disposed above and opposed to the lower heating plate and movable up and down by a lifting rod, and a lower portion of the movable lifting plate A pressure molding apparatus comprising an upper heating plate and a mold,
A pressure molding apparatus comprising the parallel adjustment mechanism according to claim 1, wherein the parallelism between the lower heating plate and the mold is adjusted.
前記下熱盤に感圧紙を載せる工程と、
前記可動昇降板を降下させて前記金型を該感圧紙に押圧する工程と、
当該押圧後、該感熱紙から前記下熱盤に対する金型の圧力分布を測定する工程と、
当該測定される圧力分布が均一になるように、前記平行調整手段を調整して前記下熱盤と金型との平行を調整する工程
とを含む加圧成型装置の平行調整法。 A method for adjusting the parallelism between the lower heating plate and the mold in the pressure molding apparatus according to claim 6,
Placing pressure sensitive paper on the lower heating plate;
Lowering the movable lifting plate and pressing the mold against the pressure sensitive paper;
After the pressing, measuring the pressure distribution of the mold from the thermal paper to the lower heating plate,
A parallel adjustment method for a pressure molding apparatus, including a step of adjusting the parallel adjustment means to adjust the parallelism of the lower heating plate and the mold so that the measured pressure distribution is uniform.
前記下熱盤に圧力センサを載せる工程と、
前記可動昇降板を降下させて前記金型を該センサに押圧する工程と、
当該押圧後、該センサから出力される信号から前記下熱盤に対する金型の圧力分布を測定する工程と、
当該測定される圧力分布が均一になるように、前記平行調整手段を調整して前記下熱盤と金型との平行を調整する工程
とを含む加圧成型装置の平行調整法。
A method for adjusting the parallelism between the lower heating plate and the mold in the pressure molding apparatus according to claim 6,
Placing a pressure sensor on the lower heating plate;
Lowering the movable lifting plate and pressing the mold against the sensor;
Measuring the pressure distribution of the mold against the lower heating plate from the signal output from the sensor after the pressing;
A parallel adjustment method for a pressure molding apparatus, including a step of adjusting the parallel adjustment means to adjust the parallelism of the lower heating plate and the mold so that the measured pressure distribution is uniform.
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