⑴ 1941 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種可增加箔膜延展長度之方法。 【先前技術】 在模内成型制程中，僅依靠第一模具侧在常溫狀態 空將箔膜吸附定位於第一模具模穴内，因此箔膜拉 木冰度文限於羯膜基體層本身在常溫狀態時之拉伸極 限例如當箔膜本身被拉伸超過其自然狀態20%時可能 會,損或被拉斷；再者當第一模具模穴設計有小角度（特 ，是銳角角度）結構時’由於抽真空產生之負麼大小及 泊膜基體層材料之常溫變形之限制，㈣亦不易完全盘 模穴之形狀相契合。 一 基於以上習知技術之缺失，業界 加熱之制程，如習知括游㈣_ π 兄丁冶膜預先 進行加熱之獨立加心==種在合模前對落膜 部，當需要加執“ 置係獨立於模具外 公第：外的傳送裝置將該加熱裝置送至 置將兮力之0對治膜加熱，加熱後，再由該傳送裝 術不僅需要^ 移出。因此，習知技 使整個設備結構龐大，成…:、使用之傳达裝置，致 間增長，效率較低。且，亥項中：二導致整個制程時 及小角度結構有所限制之缺失/中亦存在落膜拉深深度 【發明内容】 基於以上 有必要提供一 種可增加箔膜延展長度 之方 6 與第二S膜延展方法’包括以下步驟：將落膜送入第- 於該第-模具1膜與該第一模㈣制 該第一模具抽真空，將荡膜向該第-模且之=1間；將 將該第-與第二模具合模；利八内吸附； 膜施加壓力。 貝通過该苐二模具對箔 壓之雙重作：ΐ過第一模具抽真空及與第二模具吹氣加 伸長度。 極大延伸該兩模具間之簿膜本身之拉 【實施方式】 展卜—㈣膜延展方法用於在模内成型時延 三膜1GG之尺寸’運用該㈣延展方法之較佳實施方 ，内，印設備包括一送膜裝置1〇、一第二模具2〇、 弟模具30、一壓合框40及一熱介質源9〇。 “〜睛一併參閱圖2，該第一模具％開設一模穴Η，該 模八31包括一第一表面A1 ’ 一第二表面A2及一第三表 面八3’该模穴31開口位置該第一表面A1與該第二表面 A2間之連線長度為L，該第一模具30於該模穴31内及 其周圍開設有複數排氣槽32,每一排氣槽32 一端與抽真 玉裝置相連。該第一模具30周緣與該等排氣槽32間設 置有—密封圈33。 請繼續參閱圖1，該第二模具20包括一與該第一模 具30之模穴31相對應之配合部21 ’鄰近該第二模具20 1331941 之配合部2!開設複數排氣槽23，每一排氣槽23連接一 可調㈣闊80,該茂壓閥8〇之㈣閥值可根據成型條件 所需之麼力變化作調節。該第二模具2〇周緣與該等排氣 槽23之間開設有複數收容對應壓合框40之收容槽25， 該等收容槽25内裝設有密封圈27。 請一併參閱圖3與圖4 ’該第二模具2〇穿過該配合 部21開設複數介質通道29，每一介質通道29包括一開 設於該配合部21之喇叭口狀之開口 291及自該開口 291 之較細端向該第二模具20内延伸之一通道本體295。每 一介質通道29之通道本體295遠離該開口 291處開設一 流道296並透過一管路91與該熱介質源9〇相連。每一 介質通道29之通道本體295遠離該開口 291之一端為一 固定體298，該固定體298開設一通孔。可以理解，該等 介質通道29之數量摩視產品實際需求而定。每一介質通 道29内裝°又一開關裝置，本實施方式中該開關裝置包括 一柱塞70，該柱塞7〇包括一與相應介質通道μ之形狀 相配口之圓臺狀柱塞頭71、—與柱塞頭相連之桿部 73及一可固定於該桿部73另一端之固定件，該柱塞 頭71用於封閉該介質通道29之開口 291，該柱塞7〇^ 桿部二遠離該柱塞頭71之一端穿過該固定體298之通 孔並穿設於一彈性元件内，該彈性元件在本實施方式中 為：彈簧79,該固定件75固定於該桿部73之末端將該 彈簧79限制於該固定體298與該固定件75之間。 έ ”、、h貝源90可為氣體，氣體可透過一電阻絲或者 紅外線加熱器（IRHe ”通，電阻絲二為; ::::氣體溫度作調節。另外，氣體也可二::: 、產生之熱置加溫。調壓閥可根 輸出氣體之氣壓。 U翌刀而要調即 該运膜裝置10包括分設於模具上下游之兩落膜傳送 輪13及對落膜傳送方向導向之兩導向輪15。 屛，^其辦、思 匕括一基體層與印刷於基體層之轉印 ，體層-般為PC/PBT等高分子材料製成該轉印 I般為用油墨或塗料印刷至該基體層上之圖案或文 巧一併參:閱.圖8，合模前，該送膜裝置、10透過該傳 二輪13之傳送及該導向輪丨5之導向將該箱膜1 〇〇沿 豎直方向自上而下瑪送入公第一模具之間並定位該羯 膜覆蓋於該第一模具30表面，之後該等壓合框4〇 =該箔臈100壓制於該第一模具3〇表面，同時配合該等 圈33’使該箔膜100與該模穴31之間形成一第一氣 密空間。抽真空裝置透過該等排氣槽32將該第一氣密空 1之。P刀空氣抽出，將該箔膜1〇〇向該模穴31内吸入一 部分’如圖5所示。 合模時，該等壓合框40分別收容於第二模具20之 相應收容槽25内並壓抵該第二模具20之密封圈27，使 該羯膜100與該第二模具20之間形成一第二氣密空間。 此時s玄等排氣槽23與該第二氣密空間相通。關閉該洩壓 1331.941 閥⑽，並對該洩壓閥80設定一洩壓閥值。該熱介質源 9〇透過該管路91向該等介質通道29内通—定壓力之熱 介質（本實施方式中為熱空氣），熱空氣作動該等柱塞 向該第一模具30侧運動，露出該等介質通道29之開口 29卜熱空氣通過該等介質通道29向該羯膜ι〇〇吹氣並 加壓（如圖4所示）’該羯膜100之基體層軟化，且在該 第一模具3(M則透過該等排氣槽32才由真空及透過該第二 模具20之介質通道29注入熱空氣加溫與加壓之共同作 用下該箔膜1〇〇完全貼附於該第一模具3〇之模穴3ι内 壁’如圖6所示。該熱介質源9〇停止供氣，該等柱塞7〇 在對應彈簧79之回復力作用下反向運動，將相應介質通 道29封閉。 向該第一模具30乏模穴31内射膠，當該第一模具 3〇之模穴3!内氣壓大於該洩壓閥閥值時，該洩壓閥別 自動打開’將該第-模具3G之模穴31内之氣體泄出， 繼續射膠’直到充滿該第—模具3G之模穴3.卜如圖7所 不。㈣冷卻’最後開模’取出成型品，該落们〇〇之 轉印層將附著於成型品表面，其基體層由於該等壓合框 之壓制將同該轉印層剝離。之後鬆開該等壓合框4〇, 繼續開動該送膜裝f…㈣膜_位於前-成型週期 内之基體層自該公第一模具間移出，並開始下一成型週 期。 本發明之技術方案中透過合模後對㈣膜丨⑻加熱 及在該第-模具3〇側抽真空與該第二模具Μ側吹氣加 1331941 壓之雙重作用，可極大延伸該落膜ι〇〇本身之拉伸， 到使得該羯膜100即便在小角度及 ： 也可與該第一模具30之模穴 ：障况下 告兮坌一 π目1凡夹貼口之效果。例如 .具30之模穴31之第-表面Α卜第二表面Α2 、面A3之尺寸關係符合關係式 al+a2+a3>=(i+20〇/o)*L 時，苴中篦矣而 A1 ^ al, ^ ^ . ^ Ao 八中弟一表面A1之長度為 弟一表面A2之長度為&2，第三表面Μ之長 也可達到該羯膜100與該第— 合之效果。 惕八W π美貼 專利述’本發明符合發明專利要件，爰依法提出 ^ 以上所述者僅為本發明之較佳 悉本案技藝之人士，在爰依本發明精神所作：等 【圖式簡單說明】 卜之申⑼專利圍内。 圖1係運用本發明落膜延展方法之較佳 内轉印設備之剖視圖。 只轭方式之模 圖2係圖1中所示之第一模具之剖視圖。 圖3與圖4係圖j中所示之之第二 分之剖，分別表示其兩個不同H 道。Ρ 圖5係圖1中所示之第一模具 ㈣ 圖6係本發明箔膜延展 ㈣口之視圖。 向模穴内充氣狀態之剖视圖。父佳霄施方式合模後並 圖7係運用本發明箔膜延展 模内轉印設備合模後射耀成型狀態之剖視 ζ 佳實施方式之 1331941 圖8係本發明箔膜延展方法之較佳實施方式之流程 框圖。 【主要元件符號說明】 箔膜 100 送膜裝置 10 傳送輪 13 導向輪 15 第二模具 20 配合部 21 排氣槽 23、32 收容槽 25 密封圈 27 ' 33 介質通道 29 開口 291 通道本體 295 流道 296 固定體 298 第一模具 30 模穴 31 壓合框 40 柱基 70 柱塞頭. 71 桿部 73 固定件 75 彈簧 79 洩壓閥 80 熱介質源 90 管路 91 12(1) 1941 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD The present invention relates to a method of increasing the length of a foil film. [Prior Art] In the in-mold forming process, the foil film is adsorbed and positioned in the first mold cavity only by the first mold side in the normal temperature state, so the foil film is limited to the base film layer itself at normal temperature. The tensile limit of time may be broken or broken, for example, when the foil itself is stretched by more than 20% of its natural state; and when the first mold cavity is designed with a small angle (special, acute angle) structure 'Because of the negative pressure generated by the vacuum and the limitation of the normal temperature deformation of the base material of the base film, (4) it is not easy to match the shape of the plate cavity. Based on the lack of the above-mentioned prior art, the process of heating in the industry, such as the well-known engraving (4) _ π 丁 冶 冶 预先 预先 预先 预先 预先 预先 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = It is independent of the outer part of the mold: the external conveying device sends the heating device to the heating device to heat the film, and after heating, the conveying device not only needs to be removed. Therefore, the conventional device makes the whole device The structure is huge, and the use of the communication device is increased, and the efficiency is low. Moreover, in the middle of the sea: the second process leads to the lack of limitations in the whole process and the small-angle structure. SUMMARY OF THE INVENTION Based on the above, it is necessary to provide a method for increasing the length of the foil film 6 and the second S film stretching method 'including the following steps: feeding the falling film into the first mold 1 and the first mold (4) preparing the first mold to evacuate, and smearing the film to the first mold and =1; the first and second molds are closed; the Li-8 is adsorbed; the film is applied with pressure. Double work on foil pressure: vacuuming the first mold Blowing and elongation with the second mold. Extending the stretching of the film itself between the two molds. [Embodiment] - (4) Film stretching method is used to mold the size of the film 1GG in the in-mold process. In the preferred embodiment of the stretching method, the printing device comprises a film feeding device 1〇, a second mold 2〇, a young mold 30, a pressing frame 40 and a heat medium source 9〇. 2, the first mold % defines a cavity Η, the die VIII 31 includes a first surface A1 ′ a second surface A2 and a third surface 八 3 ′ the cavity 31 opening position of the first surface A1 and The length of the connection between the second surface A2 is L. The first mold 30 is provided with a plurality of exhaust grooves 32 in and around the cavity 31, and one end of each of the exhaust grooves 32 is connected to the pumping jade device. A seal ring 33 is disposed between the periphery of the first die 30 and the exhaust grooves 32. Referring to FIG. 1 , the second mold 20 includes a mating portion 21 ′ corresponding to the cavity 31 of the first mold 30 adjacent to the mating portion 2 of the second mold 20 1331941; a plurality of exhaust slots 23 are opened, each of which A venting groove 23 is connected to an adjustable (four) width 80, and the (4) threshold of the pressure regulating valve 8 can be adjusted according to the force change required for the molding conditions. A receiving groove 25 for receiving the corresponding pressing frame 40 is disposed between the peripheral edge of the second die 2 and the exhaust grooves 23, and the sealing groove 27 is disposed in the receiving groove 25. Referring to FIG. 3 and FIG. 4 together, the second mold 2 defines a plurality of medium passages 29 through the mating portion 21, and each of the medium passages 29 includes a flared opening 291 formed in the engaging portion 21 and The thinner end of the opening 291 extends into the channel body 295 into the second mold 20. The channel body 295 of each of the media channels 29 opens a flow path 296 away from the opening 291 and is connected to the heat medium source 9 through a conduit 91. One end of the channel body 295 of each of the media channels 29 away from the opening 291 is a fixing body 298, and the fixing body 298 defines a through hole. It will be appreciated that the number of such media channels 29 depends on the actual demand of the product. Each of the medium passages 29 is provided with a further switching device. In the present embodiment, the switching device includes a plunger 70, and the plunger 7A includes a truncated plunger head 71 that matches the shape of the corresponding medium passage μ. a rod portion 73 connected to the plunger head and a fixing member fixed to the other end of the rod portion 73, the plunger head 71 for closing the opening 291 of the medium passage 29, the plunger 7? The distal end of the plunger head 71 passes through the through hole of the fixing body 298 and is disposed in an elastic member. In the embodiment, the elastic member is a spring 79. The fixing member 75 is fixed to the rod portion 73. The end of the spring 79 is limited between the fixed body 298 and the fixing member 75. έ ”, h source 90 can be a gas, the gas can pass through a resistance wire or infrared heater (IRHe), the resistance wire is 2; :::: gas temperature adjustment. In addition, the gas can also be two::: The generated pressure regulating valve can output the gas pressure of the gas. The U film is adjusted, that is, the film transporting device 10 includes two falling film conveying wheels 13 disposed on the upper and lower sides of the mold and the conveying direction of the falling film. Two guiding wheels 15 are guided. 屛, ^There is a substrate layer and a printing layer printed on the substrate layer, and the body layer is generally made of a polymer material such as PC/PBT. The pattern printed on the substrate layer or the text is taken together: see Figure 8. Before the mold clamping, the film feeding device 10 is transported through the transfer wheel 13 and the guiding rim 5 guides the box film. 1 〇〇 is fed from top to bottom in the vertical direction between the first male mold and positioned to cover the surface of the first mold 30, and then the pressing frame 4〇=the foil 臈100 is pressed on the surface The surface of the first mold 3 is combined with the ring 33' to form a first airtight space between the foil film 100 and the cavity 31. The device passes the first airtight space through the exhaust vents 32. The P knife air is drawn out, and the foil film 1 is sucked into the cavity 31 into a part as shown in Fig. 5. When the mold is closed, The equal pressure frame 40 is respectively received in the corresponding receiving groove 25 of the second mold 20 and pressed against the sealing ring 27 of the second mold 20 to form a second airtight between the diaphragm 100 and the second mold 20. At this time, the venting groove 23 is connected to the second airtight space. The pressure releasing 1331941 valve (10) is closed, and a pressure relief threshold is set for the pressure relief valve 80. The heat medium source 9 The conduit 91 passes a constant pressure medium (hot air in the present embodiment) to the medium passages 29, and the hot air acts to move the plungers toward the first mold 30 side to expose the medium passages 29 The opening 29, the hot air is blown and pressurized (as shown in FIG. 4) through the medium passages 29, and the base layer of the enamel film 100 is softened, and in the first mold 3 (M is Through the venting grooves 32, the vacuum and the medium passage 29 of the second mold 20 are injected into the hot air to warm and pressurize. The foil film 1 〇〇 is completely attached to the inner wall of the cavity 3 1 of the first mold 3 ' as shown in Fig. 6. The heat medium source 9 〇 stops supplying air, and the plunger 7 is responsive to the restoring force of the corresponding spring 79 Under the action of the reverse movement, the corresponding medium passage 29 is closed. The glue is injected into the cavity 31 of the first mold 30, and when the pressure in the cavity 3 of the first mold 3 is greater than the pressure relief valve threshold, The pressure relief valve does not automatically open 'discharge the gas in the cavity 31 of the first mold 3G, continue to shoot the glue' until the cavity of the first mold 3G is filled. 3. As shown in Fig. 7. (4) Cooling 'Last The mold opening 'takes out the molded article, and the transferred transfer layer adheres to the surface of the molded article, and the base layer is peeled off from the transfer layer by pressing of the press-fit frame. Thereafter, the press-fit frame 4 is released, and the film-feeding device f... (4) film_the film layer located in the front-molding cycle is removed from the male first die and the next molding cycle is started. In the technical solution of the present invention, after the mold clamping, the (four) film crucible (8) is heated, and the vacuum of the first mold 3 side is combined with the second mold side blowing and the 1341941 pressure is applied, the falling film can be greatly extended. The stretching of the crucible itself is such that even if the crucible film 100 is at a small angle and: it can be warned with the cavity of the first mold 30: a barrier to the effect of the veneer. For example, when the dimensional relationship of the second surface Α2 and the surface A3 of the cavity 31 having the cavity 31 of 30 is in accordance with the relationship of al+a2+a3>=(i+20〇/o)*L, And A1 ^ al, ^ ^ . ^ Ao The length of the surface of A8 is the length of the surface of the younger brother A2 is & 2, and the length of the third surface can also reach the effect of the enamel film 100 and the first combination .惕 W W W W 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本 本Description] Bu Zhishen (9) patents. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-sectional view showing a preferred internal transfer apparatus using the falling film stretching method of the present invention. Fig. 2 is a cross-sectional view of the first mold shown in Fig. 1. Figures 3 and 4 are cross-sectional views of the second portion shown in Figure j, respectively representing two different H-channels. Ρ Figure 5 is a first mold shown in Figure 1 (four) Figure 6 is a view of the foil film extension (four) of the present invention. A cross-sectional view of the state of inflation into the cavity. After the mold clamping method is clamped and FIG. 7 is a cross-sectional view of the state in which the foil film is stretched by the in-mold transfer device after the mold is closed, the image is in a state of slewing molding. 13311941 is a preferred embodiment of the foil film stretching method of the present invention. A block diagram of a good implementation. [Main component symbol description] Foil film 100 Film feeding device 10 Transfer wheel 13 Guide wheel 15 Second mold 20 Mating portion 21 Exhaust groove 23, 32 Storage groove 25 Seal ring 27 ' 33 Media passage 29 Opening 291 Channel body 295 Flow path 296 Fixing body 298 First mould 30 Cavity 31 Press-fit frame 40 Column base 70 Plunger head. 71 Rod 73 Fixing member 75 Spring 79 Pressure relief valve 80 Heat medium source 90 Line 91 12