1322076 (1) 九、發明說明. ' 【發明所屬之技術領域】 本發明，是關於熱塑性的加工對象物加壓成型用的裝 置，特別是關於使用伺服馬達之加壓成型裝置》 . 【先前技術】 例如：專利文獻1及2所示，已知有以熱塑性樹脂爲 φ 材料來進行微細圖案熱轉印加壓成型的裝置。該加壓成型 裝置，例如是使用在液晶顯示板所使用的熱塑性樹脂製導 光板的製造方面。接著，上述習知加壓成型裝置，於一般 是使用油壓加壓機。 [專利文獻1]日本特開2003-1705號公報 [專利文獻2]日本特開2004- 1 02 1 06號公報 【發明內容】 • [發明欲解決之課題] 然而，將具有微細圖案的壓模壓向熱塑性樹脂板的表 面，對熱塑性樹脂板表面進行圖案轉印成型加工時若是使 用油壓加壓機，則安裝有壓模的滑塊其移動速度慢，因此 難以提昇生產速度。此外，如微細圖案轉印成型般的微細 成型在無塵室內進行的狀況爲多數，因此需要使用到油的 油壓加壓機的使用就較不受歡迎。 另一方面，若採用是使用伺服馬達之電動伺服加壓機 時，雖然可消除上述問題點，但卻會產生以下新的問題點 -4- (2) 1322076 。即，使用精度高的位置控制來進行滑塊的控制時，因要 轉印的圖案凹凸爲5〜25//m，相對於此成爲材料的熱塑 性樹脂（例如：丙烯酸、聚碳酸酯）板的板厚不均偏差爲 50;/m程度，因此，材料的厚度不均偏差就造成圖案的轉 印不完全。 . 此外，於熱轉印加壓成型，在將加熱成熱塑性樹脂軟 ^ 化溫度以上的壓模壓向熱塑性樹脂表面轉印圖案後，是需 φ 要保持著壓模爲壓在熱塑性樹脂表面的狀態之同時，對壓 模進行冷卻直到壓模的溫度成爲熱塑性樹脂軟化溫度以下 爲止，以使轉印在熱塑性樹脂表面的圖案形狀凝固。但是 ，在壓模的冷卻時，若透過位置控制使滑塊保持在指定位 置上時，則冷卻會造成安裝有壓模的模具因熱收縮產生尺 寸變化，降低壓模對熱塑性樹脂的下壓壓力，有時會產生 轉印瑕疵（未轉印或皺模樣）。 另一方面，爲避免產生如上述般的轉印瑕疵而持續下 ® 壓著壓模時，是會使熱塑性樹脂的表面牢固地緊貼於壓模 。於該狀態下勉強地對壓模和成型後的熱塑性樹脂板進行 脫模時，則會產生壓模從滑塊側剝落，或轉印後的圖案形 狀變形等問題。 於是，本發明之目的，是在於提供一種使用電動伺服 加壓機來進行高速並且高精度的熱轉印加壓成型時所需要 的技術。 本發明的其他目的，是在於提供一種在熱轉印加壓成 型後’可使已轉印在加工對象物表面的圖案完整，並且可 -5- (3) 1322076 使加工對象物容易從壓模脫模的技術。 [用以解決課題之手段] 根據本發明之一實施形態的加壓成型裝置，其具備： 要對熱塑性的加工對象物進行加壓成型用的壓模；要對上 • 述壓模進行加熱及冷卻用的溫度調節部；可使上述壓模對 . 上述加工對象物形成相對性接近及離開，並且可使上述壓 ® 模產生下壓動力的電動機；及對上述電動機進行驅動的控 制器。接著，上述控制器，是透過位置控制使上述壓模對 上述加工對象物的表面形成接近直到要接觸該表面之正前 方的位置爲止’然後，在上述壓模是由上述溫度調節部加 熱達到上述加工對象物可熱變形的溫度時，透過加壓力控 制使上述電動機驅動將上述壓模壓向上述加工對象物來進 行加壓成型。 就合宜的實施形態而言，其是可以構成爲：在上述壓 ® 模是以上述可熱變形溫度壓在上述加工對象物上的狀態下 經過指定時間時，在上述控制器持續執行加壓力控制的期 間，上述溫度調節部會對上述壓模進行冷卻。 就合宜的實施形態而言，其是可以構成爲：經由上述 加壓成型所加工成型的上述加工對象物從上述壓模脫模後 ，上述控制器是透過位置控制對上述電動機進行驅動使上 述壓模離開上述加工對象物。 就合宜的實施形態而言’其可構成爲：上述控制器， 是於上述加壓力控制中，將上述電動機驅動成使上述壓模 -6- (4) 1322076 以上述可熱變形溫度且以可加壓成型的第1加壓力來壓向 上述加工對象物’然後’由上述溫度調節部使上述壓模邊 冷卻的同時邊將上述電動機驅動成是以較上述第1加壓力 還小的第2加壓力來推壓上述壓模。 就合宜的實施形態而言’其又具備有要對上述加工對 . 象物和上述壓模的接觸面噴出吹風用的鼓風機。接著，其 . 是可以構成爲：上述控制器，是於上述加壓力控制中，將 # 上述伺服馬達驅動成是以第2加壓力使上述壓模壓在上述 加工對象物上經過指定時間以後，使要對上述加工對象物 進行的加壓力控制成零，當上述加壓力爲零時，上述鼓風 機會對上述加工對象物和上述壓模的接觸面噴出吹風。 就合宜的實施形態而言，當上述壓模是位於要接觸於 上述加工對象物表面的正前方位置上時，是形成有已將上 述壓模及加工對象物收納在其內部的真空室。再加上，上 述加壓成型裝置，又具備有要對上述真空室內的壓力進行 ® 檢測的壓力測感器。接著，其是可以構成爲：上述控制器 ’是在上述壓力測感器所檢測出的上述真空室內的壓力成 爲指定値以下時，對上述伺服馬達進行驅動使上述壓模壓 向上述加工對象物。 【實施方式】 [發明之最佳實施形態] 以下，是使用圖面來說明本發明之一實施形態相關的 加壓成型裝置。 (5) (5)1322076 第1圖，是表示本實施形態相關的加壓成型裝置1槪 略構成圖。加壓成型裝置i，如第1圖所示，其具備：要 對加工對象物2進行加壓的加壓機部3 0 ;及要對加壓機 部30進行控制用的構成。要對加壓機部3〇進行控制用的 構成’具備：可使滑塊21上下運動的電動機即伺服馬達 11、11 ;可將伺服馬達1 1、1 1的轉動轉換成滑塊2 1直線 運動的動力轉換機構（皮帶輪12、12，同步皮帶13、13 ’滾珠絲槓1 4、1 4 ):及要對伺服馬達1 1、1 1進行驅動 的控制器1 7。控制器1 7，是根據滑塊位置檢測手段23、 23的輸出’透過位置控制輸出伺服馬達n、丨丨驅動用的 控制訊號’此外是根據加壓力檢測手段2 4、2 4的輸出， 透過加壓力控制輸出伺服馬達1 1、1 1驅動用的控制訊號 。針對控制器1 7要輸出的控制訊號的詳細說明，將於後 述。當伺服放大器16、16受理來自於控制器17的控制訊 號時，是根據該控制訊號和編碼器15、15的輸出來控制 要對伺服馬達11、11輸出的電流。即，是根據來自於控 制器1 7的指示使伺服馬達1 1、1 1動作，以使安裝在滑塊 21上的下述壓模接近及離開加工對象物。再加上，壓模 是根據控制器1 7的指示來壓向加工對象物2，使加工對 象物2加壓成型。 第2圖’是表示加壓機部30詳細構成的剖面圖。加 壓機部30，具有與滑塊21形成結合的上機箱31和與承 塊22形成結合的下機箱32。配合滑塊21的上下活動， 上機箱31會上下移動。接著，於上機箱31和下機箱32 -8- (6) 1322076 要接觸的部份，是分別安裝有真空氣密墊39、39、39、 39。然後’當上機箱31下降使安裝在上機箱31上的真空 氣密墊39、39和安裝在下機箱31上的真空氣密墊39、 39接觸時，在上機箱及下機箱32的內部會形成密閉 的空間（真空室）。 • 上機箱31 ’具備：要形成吹風的鼓風機41、41;及 • 要噴出吹風的噴嘴42、42。該吹風，是在加壓成型後， • 爲了使加工對象物2從壓模3 5脫模，而吹在壓模3 5和加 工對象物2的接觸面附近。針對吹風的噴出時機等將於後 述。 於下機箱32，是設有真空吸取口 37，當以泵浦40來 吸取空氣時’就能夠史真空室內成爲真空或減壓狀態。此 外’於下機箱32’安裝有要對真空室內的壓力進行檢測 用的壓力測感器3 6。 於上機箱3 1及下機箱32各別的內側，構成有從外側 ® 往內側按照下述順序形成層疊的隔熱板3 3、3 3和板狀的 溫度調節容器（以下稱溫度調節板）34、34及要將指定 的凹凸圖案轉印在加工對象物2上用的壓模35、35。於 溫度調節板34、34，是設有要對溫度調節板的溫度進行 檢測用的溫度測感器3 8、3 8。 溫度調節板34' 34’於內部設有液體或氣體等流體 要流動用的流路。接著，將指定溫度的流體流動在該流路 時’就能夠進行壓模35的加熱及冷卻。此時，透過控制 器17對要流動在溫度調節板34、34內的流路中的流體溫 -9- 13220761322076 (1) Inventive Description of the Invention [Technical Field] The present invention relates to a device for press forming a thermoplastic object to be processed, and more particularly to a press forming device using a servo motor. For example, as disclosed in Patent Documents 1 and 2, an apparatus for performing fine pattern thermal transfer press molding using a thermoplastic resin as a material of φ is known. This press molding apparatus is used, for example, in the manufacture of a thermoplastic resin light guide plate used for a liquid crystal display panel. Next, the conventional press molding apparatus described above generally employs a hydraulic presser. [Patent Document 1] JP-A-2003-1705 [Patent Document 2] JP-A-2004-1021 06 [Invention] [Problems to be Solved by the Invention] However, a stamper having a fine pattern is pressed. When a hydraulic press machine is used for pattern transfer molding on the surface of a thermoplastic resin sheet on a surface of a thermoplastic resin sheet, the slider to which the stamper is attached has a slow moving speed, so that it is difficult to increase the production speed. Further, since fine molding such as fine pattern transfer molding is carried out in a clean room, the use of a hydraulic presser using oil is less desirable. On the other hand, if an electric servo press using a servo motor is used, the above problem can be eliminated, but the following new problem -4- (2) 1322076 is caused. In other words, when the slider is controlled by the position control with high precision, the pattern unevenness to be transferred is 5 to 25/m, and the thermoplastic resin (for example, acrylic or polycarbonate) which is a material is used. The variation of the thickness unevenness is about 50; / m, therefore, the uneven thickness deviation of the material causes the transfer of the pattern to be incomplete. Further, in the thermal transfer press molding, after the stamper heated to a temperature higher than the softening temperature of the thermoplastic resin is pressed against the surface of the thermoplastic resin transfer pattern, it is necessary to keep the stamper pressed against the surface of the thermoplastic resin. At the same time, the stamper is cooled until the temperature of the stamper becomes equal to or lower than the softening temperature of the thermoplastic resin, so that the pattern shape transferred onto the surface of the thermoplastic resin is solidified. However, when the stamper is cooled, if the slider is held at the designated position by the position control, the cooling causes the mold to which the stamper is mounted to change in size due to heat shrinkage, and the pressing pressure of the stamper on the thermoplastic resin is lowered. Sometimes a transfer 瑕疵 (untransferred or wrinkled) is produced. On the other hand, in order to avoid the transfer enthalpy as described above and continue to press the stamper, the surface of the thermoplastic resin is firmly adhered to the stamper. When the stamper and the molded thermoplastic resin sheet are barely released in this state, problems such as peeling of the stamper from the slider side or deformation of the pattern after transfer may occur. Accordingly, an object of the present invention is to provide a technique required for performing high speed and high precision thermal transfer press molding using an electric servo press. Another object of the present invention is to provide a pattern which can be transferred to the surface of a workpiece after heat transfer press molding, and can be easily cut from the stamper by -5- (3) 1322076 Demoulding technology. [Means for Solving the Problem] A press molding apparatus according to an embodiment of the present invention includes: a stamper for press molding a thermoplastic object to be processed; and heating the stamper described above a temperature adjustment unit for cooling; a motor for causing the object to be processed to be relatively close to and away from the object to be processed, and to generate a pressing force for the press mold; and a controller for driving the motor. Next, the controller controls the surface of the object to be brought close to the front side of the surface by the position control. Then, the stamper is heated by the temperature adjusting unit. When the object to be processed is thermally deformable, the motor is driven to press the stamper to the object to be processed by pressurization control to perform press molding. In a preferred embodiment, when the pressurizing mold is pressed against the object to be processed by the heat distortion temperature, the controller continuously performs pressure control on the controller. In the meantime, the temperature adjustment unit cools the stamper. In a preferred embodiment, after the workpiece to be processed by the press molding is released from the stamper, the controller drives the motor through the position control to press the pressure. The mold leaves the object to be processed. In a preferred embodiment, the controller may be configured to drive the motor so that the stamper-6-(4) 1322076 is at the heat-deformable temperature and The first pressing force of the press molding is pressed against the object to be processed, and then the temperature is adjusted by the temperature adjusting unit while the die is cooled, and the motor is driven to be smaller than the first pressing force. Pressure is applied to push the above stamper. In the case of a suitable embodiment, it is provided with a blower for blowing a contact surface of the above-mentioned processing pair and the above-mentioned stamper. In the above-described pressure control, the servo motor may be driven to press the stamper against the object to be processed by the second pressing force for a predetermined period of time. The pressing force to be applied to the object to be processed is controlled to zero, and when the pressing force is zero, the blower blows air to the contact surface between the object to be processed and the stamper. In a preferred embodiment, when the stamper is located in front of the surface of the object to be processed, a vacuum chamber in which the stamper and the object to be processed are accommodated is formed. Further, the press molding apparatus described above further includes a pressure sensor for detecting the pressure in the vacuum chamber. Then, when the pressure in the vacuum chamber detected by the pressure sensor is equal to or less than a predetermined value, the controller Δ is configured to drive the servo motor to press the stamper to the object to be processed. [Embodiment] BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a press molding apparatus according to an embodiment of the present invention will be described with reference to the drawings. (5) (5) 1322076 Fig. 1 is a schematic view showing a configuration of a press molding apparatus 1 according to the present embodiment. As shown in Fig. 1, the press molding apparatus i includes a pressurizing unit 30 for pressurizing the object 2 and a structure for controlling the press unit 30. The configuration for controlling the pressurizing unit 3A is provided with servo motors 11, 11 which are motors that can move the slider 21 up and down; the rotation of the servo motors 1 1 and 1 1 can be converted into a straight line of the slider 2 1 The dynamic power conversion mechanism (pulleys 12, 12, timing belts 13, 13 'ball screws 14 and 14): and the controller 17 to drive the servo motors 1 1 and 11. The controller 17 is based on the output of the slider position detecting means 23, 23, the transmission position control output servo motor n, and the control signal for the driving of the crucible, and is based on the output of the pressing force detecting means 24, 24, The pressure control outputs a control signal for driving the servo motor 1 1 and 11. A detailed description of the control signal to be outputted by the controller 17 will be described later. When the servo amplifiers 16, 16 receive the control signal from the controller 17, the currents to be output to the servo motors 11, 11 are controlled based on the control signals and the outputs of the encoders 15, 15. That is, the servo motors 1 1 and 1 1 are operated in accordance with an instruction from the controller 17 so that the following stamper attached to the slider 21 approaches and leaves the object to be processed. Further, the stamper is pressed against the object 2 in accordance with an instruction from the controller 17, and the processed object 2 is press-formed. Fig. 2' is a cross-sectional view showing a detailed configuration of the press machine unit 30. The presser unit 30 has an upper casing 31 that is coupled to the slider 21 and a lower casing 32 that is coupled to the block 22. In conjunction with the up and down movement of the slider 21, the upper chassis 31 moves up and down. Next, portions to be contacted between the upper casing 31 and the lower casing 32 -8-(6) 1322076 are vacuum-sealed gaskets 39, 39, 39, 39, respectively. Then, when the upper chassis 31 is lowered, the vacuum airtight gaskets 39, 39 mounted on the upper casing 31 are in contact with the vacuum airtight gaskets 39, 39 mounted on the lower casing 31, and the inside of the upper casing and the lower casing 32 are formed. Closed space (vacuum chamber). • The upper casing 31' has: blowers 41, 41 to form a blower; and - nozzles 42, 42 to blow blows. This air blow is after the press molding, and is blown between the stamper 35 and the contact surface of the workpiece 2 in order to release the object 2 from the stamper 35. The timing of the ejection of the air blower and the like will be described later. In the lower casing 32, a vacuum suction port 37 is provided, and when the air is sucked by the pump 40, it is possible to change the vacuum chamber to a vacuum or a reduced pressure state. Further, a pressure sensor 36 for detecting the pressure in the vacuum chamber is attached to the lower casing 32'. On the inner side of each of the upper casing 3 1 and the lower casing 32, heat-insulating plates 3 3 and 3 3 and a plate-shaped temperature-adjusting container (hereinafter referred to as a temperature-adjusting plate) which are formed in the following order from the outer side to the inner side are formed. 34, 34 and stampers 35 and 35 for transferring the specified uneven pattern to the object 2 to be processed. The temperature adjusting plates 34 and 34 are provided with temperature sensors 38 and 38 for detecting the temperature of the temperature adjusting plate. The temperature regulating plate 34' 34' is internally provided with a flow path for fluid such as a liquid or a gas to flow. Then, when the fluid of the specified temperature flows in the flow path, heating and cooling of the stamper 35 can be performed. At this time, the temperature of the fluid flowing through the flow path in the temperature regulating plates 34, 34 is transmitted through the controller -9-1322076
度進行控制’就能夠決定溫度調節板34、34的加熱溫度 及冷卻溫度。 如上述於溫度調節部，是具備有溫度調節板34、34 和溫度測感器38、38。此外，最好是又具備有隔熱板33 〇 • 加工對象物2，是熱塑性樹脂製的板，例如是丙烯酸 . 製或聚碳酸酯製的導光板用的板。壓模35、35，分別是 # 例如表面具有要形成在導光板表面上的凹凸形狀之鎳製具 有0.2〜0.5 mm程度厚的薄膜。 其次’是使用第3圖至第8圖來說明本實施形態相關 的加壓成型裝置1動作的1循環作業。第3圖，是表示加 壓成型裝置1其1週期動作中上下方向的滑塊位置時間變 化圖。第4圖，是關於1週期動作中加壓成型裝置主要動 作的時間表。第5圖，是表示加壓機部30其1週期動作 的樣子模式圖。第6圖至第8圖，是表示1週期動作的流 程圖。 首先，是在滑塊21爲停止在上限位置的狀態（A) 下，開始進行溫度調節板34、34的加熱（a〜f)。此時 的加熱溫度，是加工對象物2可熱變形的溫度。另，於該 時間點，如第4圖所示，控制器1 7等所要執行的滑塊動 態的控制，是由位置控制來執行（a〜d ) ( S 1 0 1、S 1 02 ) 〇 於該狀態下，將加工對象物2搬入加壓機部30內（b )。此時，加工對象物2是可放在下側的壓模35上指定 -10- (8) 1322076 的位置，也可利用未圖示的加工對象物保持裝置來使加工 對象物2保持成不接觸壓模35、35。 當加工對象物2被搬入加壓機部30內時，未圖示的 加工對象物檢測手段會確認出加工對象物2是位於指定位 置（B)。接著，控制器17，是輸出可使滑塊21以高速 . 下降的控制指令（C )。即，伺服放大器1 6、1 6是根據來 . 自於控制器1 7的控制指令對要輸出至伺服馬達1 1、1 1的 φ 電流進行控制，以控制伺服馬達1 1、1 1的旋轉方向及速 度。此時，控制器1 7，其輸出的控制指令是可使滑塊位 置檢測手段23要輸出的滑塊現在位置和位置控制的目標 位置即滑塊的待機位置成爲一致。於此，滑塊的待機位置 ，是上下機箱31、32爲關閉，上側的壓模35爲位於要接 觸加工對象物2表面的正前方位置（S1 04、105)。 當滑塊21下降至待機位置時（C)，因上下機箱31 、32的內側形成著真空室，所以就會開始進行由泵浦40 # 透過真空吸取口 37來執行的真空吸抽取（d〜f) (S1 06 )° 於此，控制器1 7，是根據壓力測感器3 6的輸出來測 量真空室內的空氣壓，根據溫度測感器38的輸出來測量 溫度調節板34的溫度。接著，當真空室內的空氣壓是達 到熱轉印成型必要的指定空氣壓時，並且溫度調節板34 的溫度是達到熱轉印成型必要的指定溫度時（S 1 07 )，控 制器1 7會將滑塊動態切換成加壓力控制（e〜h )。即， 控制器1 7，是使透過加壓力檢測手段24要獲得的滑塊2 1 -11 - (9) 1322076 的加壓力成爲指定的加壓力地來輸出伺服馬達1 1、u @ 控制指令。如此一來，滑塊21會下降，對加工對象物2 進行壓模3 5的熱轉印成型（e ) ( S 1 1 0 )。 另，上述過程中也可形成爲：從滑塊2 1到達待;^ β 置上的時間點開始算起於指定時間內，溫度調節板3 4 @ • 溫度和真空室內的空氣壓若未達到指定値時，則加壓$ Μ . 裝置1是停止動作（S108)。 • 於此，當加壓成型裝置是具備有複數台要驅動滑塊 21用的伺服馬達11之複數點的加壓成型裝置時，透過加 壓力檢測手段24要獲得的滑塊21的加壓力，是以滑塊全 體相關的總加壓力來獲得。相對於此，滑塊21上下活動 時的滑塊21的位置，是由設置在各點附近的滑塊位置檢 測手段23 ’分別針對各點獨立檢測滑塊的位置。接著， 即使是使滑塊21的加壓力成爲所設定的加壓力地由加壓 力控制來使滑塊上下活動時（區間e〜h)，也是分別根 • 據各點的滑塊位置資訊，使滑塊下面的平行度得以保持地 分別對各點的伺服馬達的旋轉進行獨立控制。因此，如本 實施形態般，以1台的加壓成型裝置安裝多數個伺服馬達 來進行成型時’其狀況也是相同，無關於加工對象物2的 板厚偏差，還是可保持成型品成型面的平行度。再加上， 即使是複數的加工對象物要同時成型的多數個處理成型的 狀況’也是與上述相同’無關於加工對象物間的板厚偏差 ，還是可保持成型品成型面的平行度。 另，要對滑塊21進行加壓力控制時，是要經常查核 -12- (10) 1322076 滑塊21的位置是否是在指定的下限位置至上限位置範圍 內，超過該範圍時是可停止加壓成型裝置1的動作（S111 )。於此，滑塊21的上限位置（上死點），是設定成能 夠容易進行材料、成型品搬入搬出的高度，滑塊21的下 限位置，是設定成上下的壓模接觸不會破損的高度。 • 在加壓力控制的執行期間，控制器1 7是根據加壓力 . 檢測手段24的輸出來監視加壓力。接著，是增加加壓力 # 使滑塊2 1的加壓力成爲熱轉印成型所必要的指定轉印加 壓力（e )。然後，當加壓力達到轉印加壓力時（D )，控 制器1 7，是在指定保持時間的期間控制著加壓力使滑塊 21的加壓力保持成轉印加壓力（f)。該保持時間，是爲 了提昇轉印精度而設定。因此，轉印精度若不成問題，則 保持時間也可以爲零（S 1 1 3、1 1 4 )。 當僅以保持時間來保持著轉印加壓力下的轉印時，溫 度調節板34的冷卻會開始進行的同時，真空室是會形成 ® 爲大氣開放（g〜j) (S115、116)。接著，控制器17, 是輸出控制指定使透過加壓力檢測手段24的輸出來測量 的滑塊21的加壓力成爲指定的保持加壓力。此時，保持 加壓力是可比轉印加壓力還小，因此滑塊21會稍微上昇 (E) (S117)。保持加壓力，例如爲轉印加壓力的1/4 〜1/2程度即可。由於是將保持加壓力設定成比轉印加壓 力還小，因此能夠實現降低伺服馬達的消費電力，於同時 還能夠降低加壓成型裝置1的最大加壓力，也可實現降低 設備成本。 -13- (11) 1322076 以保持加壓力來進行加壓的期間，控制器1 7，是根 據壓力測感器36的輸出來監視真空室內的壓力，此外是 根據溫度測感器3 8的輸出來監視溫度調節板3 4的溫度（ S118〜S122)。接著，當真空室內的壓力成爲大氣壓時， 並且溫度調節板34的溫度成爲適合脫模的溫度時，於此 . 時，爲了促進成型後的加工對象物2從壓模3 5 ' 3 5脫模 . ，是透過噴嘴42、42來噴出鼓風機41、41形成的吹風， φ 將吹風吹在壓模35、35和加工對象物2的接觸面附近（h )(S123)。利用該吹風使空氣進入加工對象物2和壓模 35、35之間，使脫模變容易。此外，因吹風會使加工對 象物2及壓模3 5、3 5的溫度稍微下降，所以於該瞬間， 加工對象物2會收縮，使空氣容易進入其與壓模35之間 〇 在吹風被噴出的期間，控制器1 7，是根據加壓力檢 測手段24的輸出，使滑塊2 1的加壓力控制成零。如此一 • 來，就形成爲滑塊21上昇，加壓力成爲零，或者是，形 成爲加工對象物2和壓模3 5、3 5之間有間隙的狀態（F ) (S124〜S128 ) ° 使用吹風來促進脫離，是可在較高溫的狀態下使加工 對象物2和壓模35完成脫模，壓模35的冷卻溫度就可設 定成較高。即，例如加工對象物2爲丙烯酸板時，只要冷 卻成比可熱變形的軟化溫度還稍微低的溫度（例如8 0 °C 左右）丙烯酸板就會硬化使成型完成，但就該溫度而言是 難以脫模。另一方面，當冷卻成比軟化溫度又更低的溫度 -14- (12) 1322076 (例如60 °C左右）時’雖然能夠容易脫模，但考慮到爲 了下一個加工對象物的加工需要進行再加熱還是不要這樣 做比較好。上述問題透過使用吹風就可解決。 如以上所述，利用吹風是可將壓模3 5的冷卻溫度設 定成比加工對象物的軟化溫度還稍微低的溫度。其結果， •能夠使壓模3 5的加熱溫度和冷卻溫度的溫度差小，能夠 . 縮短溫度調節板昇溫、冷卻所需要的時間，因此能夠提昇 φ 生產性。此外，昇溫所需要的熱量也變小，能夠降低壓模 溫度調節所需花費的運轉費用。 當以未圖示的檢測手段確認出加工對象物2已經從壓 模3 5、3 5脫模時就結束吹風，控制器1 7，是將滑塊動態 轉換成位置控制’以高速使滑塊21上昇至滑塊上限爲止 就停止（i、G)。接著，從加壓機部3 0搬出加工對象物 2(j)。於此’當加工對象物2的搬出經確認時，就結果 1循環作業（H) (S129〜S133)。 •根據本實施形態時，由於是使用電動伺服馬達的加壓 成型裝置’因此適合使用在無塵室內的同時，能夠兩全其 美達到生產速度的提昇及成型品品質的提昇。 此外，使用電動伺服馬達時，因滑塊的移動速度快， 所以即使是滑塊移動距離變長（行程長度）也不會降低生 產性。然後’當滑塊的行程長度變長時，與材料的搬入搬 出的自動化裝置的連動就變容易，使生產性更加提昇。 以上所述的本發明的實施形態，是本發明說明用的例 示，本發明的範圍並不只限於上述實施形態。該當業者， -15- (13) 1322076 在不脫離本發明的主旨範圍，是能夠以其他各種形態來實 施本發明。 例如：吹風造成的脫模促進，也可利用在使用油壓加 壓機的加壓成型裝置。 . 【圖式簡單說明】 第1圖爲表示本發明之一實施形態相關的加壓成型裝 • 置1的槪略構成圖。 第2圖爲表示加壓機部30的詳細構成剖面圖。 第3圖爲表示加壓成型裝置1週期動作中上下方向的 滑塊位置時間變化圖。 第4圖爲關於1週期動作中加壓成型裝置主要動作的 時間表。 第5圖爲表示加壓機部30其1週期動作的樣子模式 圖。 ® 第6圖爲表示加壓成型裝置的動作流程圖（1)。 第7圖爲表示加壓成型裝置的動作流程圖（2)。 第8圖爲表示加壓成型裝置的動作流程圖（3)。 【主要元件符號說明】 1 :加壓成型裝置 2 :加工對象物 11 :伺服馬達 12 :皮帶輪 -16- (14) (14)1322076 1 3 :同步皮帶 1 4 :滾珠絲槓 1 5 :編碼器 1 6 :伺服放大器 1 7 :控制器 2 1 :滑塊 22 :承塊 2 3 :滑塊位置檢測手段 2 4 :加壓力檢測手段 3 0 :加壓機部 3 1 :上機箱 3 2 :下機箱 3 3 :隔熱板 3 4 :溫度調節板 3 5 :壓模 3 6 :壓力測感器 37 :真空吸取口 3 8 :溫泉測感器 3 9 :真空氣密墊 40 :泵浦 41 :鼓風機 42 :噴嘴 -17-The degree of control is determined to determine the heating temperature and cooling temperature of the temperature regulating plates 34, 34. As described above, the temperature adjustment unit is provided with temperature adjustment plates 34 and 34 and temperature sensors 38 and 38. Further, it is preferable to further include a heat insulating plate 33. The object to be processed 2 is a plate made of a thermoplastic resin, for example, a plate for a light guide plate made of acrylic or polycarbonate. The stampers 35, 35 are respectively #, for example, a film having a surface having a concavo-convex shape to be formed on the surface of the light guide plate and having a thickness of 0.2 to 0.5 mm. Next, the one-cycle operation of the operation of the press molding apparatus 1 according to the present embodiment will be described using Figs. 3 to 8 . Fig. 3 is a view showing temporal changes of the slider position in the vertical direction during the one-cycle operation of the press-molding apparatus 1. Fig. 4 is a time chart showing the main operations of the press forming apparatus in the one-cycle operation. Fig. 5 is a schematic view showing a state in which the press machine unit 30 operates in one cycle. Fig. 6 to Fig. 8 are flowcharts showing the one-cycle operation. First, heating (a to f) of the temperature adjustment plates 34 and 34 is started in a state (A) in which the slider 21 is stopped at the upper limit position. The heating temperature at this time is a temperature at which the object 2 can be thermally deformed. In addition, at this point of time, as shown in Fig. 4, the dynamic control of the slider to be executed by the controller 17 or the like is performed by position control (a 1d to D (S 1 0 1 , S 1 02 ) 〇 In this state, the object 2 is carried into the press unit 30 (b). In this case, the object 2 to be processed is placed at a position where -10- (8) 1322076 can be placed on the lower mold 35, and the object 2 can be kept in contact by an object holding device (not shown). Stampers 35, 35. When the object 2 is carried into the press machine unit 30, the object to be detected (not shown) confirms that the object 2 is at the designated position (B). Next, the controller 17 outputs a control command (C) that causes the slider 21 to descend at a high speed. That is, the servo amplifiers 16 and 16 are based on. The φ current to be output to the servo motors 1 1 and 1 1 is controlled from the control command of the controller 17 to control the rotation of the servo motors 1 1 and 11. Direction and speed. At this time, the control command output from the controller 17 is such that the current position of the slider to be output by the slider position detecting means 23 and the target position of the position control, that is, the standby position of the slider are made coincident. Here, the standby position of the slider is such that the upper and lower casings 31, 32 are closed, and the upper stamper 35 is located directly in front of the surface of the object 2 to be processed (S1, 04, 105). When the slider 21 is lowered to the standby position (C), since the vacuum chamber is formed inside the upper and lower casings 31, 32, the vacuum suction extraction by the pump 40# through the vacuum suction port 37 is started (d~ f) (S1 06) Here, the controller 17 measures the air pressure in the vacuum chamber based on the output of the pressure sensor 36, and measures the temperature of the temperature adjustment plate 34 based on the output of the temperature sensor 38. Next, when the air pressure in the vacuum chamber reaches the specified air pressure necessary for thermal transfer molding, and the temperature of the temperature adjustment plate 34 reaches the specified temperature necessary for thermal transfer molding (S 1 07 ), the controller 17 will Dynamically switch the slider to pressure control (e~h). In other words, the controller 17 outputs the servo motor 1 1 and the u @ control command so that the pressing force of the sliders 2 1 -11 - (9) 1322076 to be obtained by the pressure applying means 24 is a predetermined pressing force. As a result, the slider 21 is lowered, and the object 2 is subjected to thermal transfer molding (e) (S 1 1 0 ) of the stamper 35. In addition, the above process may also be formed as follows: from the slider 2 1 to the waiting point; ^ β is set at the time point starting from the specified time, the temperature adjustment plate 3 4 @ • the temperature and the air pressure in the vacuum chamber are not up to When 値 is specified, $ 加压 is applied. The device 1 is stopped (S108). Here, when the press forming apparatus is a press forming apparatus including a plurality of points of the servo motor 11 for driving the slider 21, the pressing force of the slider 21 to be obtained by the pressure applying means 24 is It is obtained by the total applied pressure associated with the entire slider. On the other hand, the position of the slider 21 when the slider 21 moves up and down is the position at which the slider is independently detected for each point by the slider position detecting means 23' provided in the vicinity of each point. Then, even if the pressing force of the slider 21 is set to the pressing force and the slider is moved up and down (sections e to h), it is also based on the slider position information of each point. The parallelism below the slider is independently controlled to independently control the rotation of the servo motor at each point. Therefore, as in the case of the present embodiment, when a plurality of servo motors are mounted by one press molding apparatus to perform molding, the same conditions are obtained, and the thickness variation of the object 2 is not changed, and the molding surface of the molded product can be held. Parallelism. In addition, even in the case where a plurality of processing objects to be molded at the same time are formed in the same manner as described above, the difference in thickness between the objects to be processed is maintained, and the parallelism of the molding surface of the molded article can be maintained. In addition, when the pressure control of the slider 21 is to be performed, it is necessary to check frequently whether the position of the slider -12- (10) 1322076 is within the specified lower limit position to the upper limit position. When the range is exceeded, the stop can be added. The operation of the press molding apparatus 1 (S111). Here, the upper limit position (top dead center) of the slider 21 is set to a height at which the material and the molded product can be easily carried in and out, and the lower limit position of the slider 21 is set to a height at which the upper and lower die contacts are not damaged. . • During the execution of the pressure control, the controller 17 monitors the pressure based on the output of the pressure sensing device 24. Next, the pressing force is increased by # increasing the pressing force of the slider 2 1 to the specified transfer pressure (e) necessary for the thermal transfer molding. Then, when the pressing force reaches the transfer pressing force (D), the controller 17 controls the pressing force to maintain the pressing force of the slider 21 at the transfer pressing pressure (f) during the specified holding time. This holding time is set to improve the transfer accuracy. Therefore, if the transfer accuracy is not a problem, the holding time can be zero (S 1 1 3, 1 1 4 ). When the transfer under the transfer pressure is maintained for only the holding time, the cooling of the temperature adjustment plate 34 is started, and the vacuum chamber is formed to open to the atmosphere (g to j) (S115, 116). Next, the controller 17 specifies that the pressing force of the slider 21 measured by the output of the pressure applying detecting means 24 is a predetermined holding pressure. At this time, the holding pressure is smaller than the transfer pressing force, so the slider 21 is slightly raised (E) (S117). Keep the pressure, for example, 1/4 to 1/2 of the transfer pressure. Since the holding pressure is set to be smaller than the transfer pressing force, it is possible to reduce the power consumption of the servo motor, and at the same time, it is possible to reduce the maximum pressing force of the press molding apparatus 1, and it is also possible to reduce the equipment cost. -13- (11) 1322076 During the period of pressurization while maintaining the pressure, the controller 17 monitors the pressure in the vacuum chamber based on the output of the pressure sensor 36, and is based on the output of the temperature sensor 38. The temperature of the temperature adjustment plate 34 is monitored (S118 to S122). Then, when the pressure in the vacuum chamber becomes atmospheric pressure and the temperature of the temperature adjustment plate 34 becomes a temperature suitable for demolding, in order to facilitate the release of the object 2 after molding from the stamper 3 5 ' 3 5 The air blows formed by the blowers 41 and 41 are ejected through the nozzles 42 and 42, and φ is blown to the vicinity of the contact faces of the stampers 35 and 35 and the object 2 (h) (S123). The air is blown between the object 2 and the stampers 35 and 35 by the blowing, and the mold release is facilitated. Further, since the temperature of the object 2 and the stampers 35, 35 is slightly lowered by the blowing, the object 2 is shrunk at this instant, and the air is easily allowed to enter between the stamper 35 and the blower. During the discharge, the controller 17 controls the pressing force of the slider 21 to zero in accordance with the output of the pressing force detecting means 24. In this way, the slider 21 is raised, the pressing force is zero, or a state (F) (S) is formed between the object 2 and the stamper 35, 35 (S124 to S128). By using the air blow to promote the detachment, the object 2 and the stamper 35 can be released from the mold at a relatively high temperature, and the cooling temperature of the stamper 35 can be set to be high. That is, for example, when the object 2 to be processed is an acrylic plate, the acrylic plate is hardened to be formed by cooling to a temperature slightly lower than the softening temperature of the heat-deformable (for example, about 80 ° C), but in terms of the temperature, It is difficult to demould. On the other hand, when it is cooled to a temperature lower than the softening temperature -14 - (12) 1322076 (for example, about 60 °C), although it can be easily released, it is considered for the processing of the next object to be processed. It is better to reheat or not. The above problems can be solved by using a blower. As described above, the cooling temperature of the stamper 35 can be set to a temperature slightly lower than the softening temperature of the object to be processed by blowing. As a result, the temperature difference between the heating temperature and the cooling temperature of the stamper 35 can be made small, and the time required for the temperature adjustment plate to be heated and cooled can be shortened, so that the productivity of φ can be improved. In addition, the amount of heat required for temperature rise is also reduced, and the running cost of the mold temperature adjustment can be reduced. When it is confirmed by the detecting means (not shown) that the object 2 has been released from the stampers 35, 35, the blowing is ended, and the controller 17 dynamically converts the slider into position control 'to make the slider at a high speed. When 21 rises to the upper limit of the slider, it stops (i, G). Then, the object 2 (j) is carried out from the press unit 30. When the carry-out of the object 2 is confirmed, the result 1 is cycled (H) (S129 to S133). According to the present embodiment, since it is a press molding apparatus using an electric servomotor, it is suitable for use in a clean room, and both of them can be improved in production speed and the quality of the molded product can be improved. In addition, when the electric servo motor is used, since the moving speed of the slider is fast, the productivity is not lowered even if the moving distance of the slider is long (stroke length). Then, when the stroke length of the slider becomes long, the interlocking with the automatic device for loading and unloading the material becomes easy, and the productivity is further improved. The embodiments of the present invention described above are illustrative of the present invention, and the scope of the present invention is not limited to the above embodiments. The present invention, -15-(13) 1322076, can be implemented in various other forms without departing from the spirit and scope of the invention. For example, the mold release promotion by the blower can also be utilized in a press molding apparatus using a hydraulic press. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic block diagram showing a press molding apparatus 1 according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a detailed configuration of the press machine unit 30. Fig. 3 is a view showing temporal changes of the slider position in the vertical direction during the periodic operation of the press molding apparatus 1. Fig. 4 is a time chart showing the main operations of the press forming apparatus in the one-cycle operation. Fig. 5 is a view showing a state in which the press machine unit 30 operates in one cycle. ® Fig. 6 is a flow chart (1) showing the operation of the press molding apparatus. Fig. 7 is a flowchart (2) showing the operation of the press molding apparatus. Fig. 8 is a flow chart (3) showing the operation of the press molding apparatus. [Description of main component symbols] 1 : Press forming device 2 : Object to be processed 11 : Servo motor 12 : Pulley - 16 - (14) (14) 1322076 1 3 : Timing belt 1 4 : Ball screw 1 5 : Encoder 1 6 : Servo amplifier 1 7 : Controller 2 1 : Slider 22 : Bearing block 2 3 : Slider position detecting means 2 4 : Pressure detecting means 3 0 : Pressing machine part 3 1 : Upper case 3 2 : Lower Chassis 3 3 : Insulation board 3 4 : Temperature adjustment board 3 5 : Stamper 3 6 : Pressure sensor 37 : Vacuum suction port 3 8 : Spa sensor 3 9 : Vacuum airtight pad 40 : Pump 41 : Blower 42: Nozzle-17-