TWI250931B - Internal mandrel - Google Patents
Internal mandrel Download PDFInfo
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- TWI250931B TWI250931B TW092101567A TW92101567A TWI250931B TW I250931 B TWI250931 B TW I250931B TW 092101567 A TW092101567 A TW 092101567A TW 92101567 A TW92101567 A TW 92101567A TW I250931 B TWI250931 B TW I250931B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/9125—Cooling of hollow articles of tubular films internally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/16—Cooling
- B29C2035/1616—Cooling using liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92619—Diameter or circumference
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92647—Thickness
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92609—Dimensions
- B29C2948/92657—Volume or quantity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9279—Errors or malfunctioning, e.g. for quality control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92923—Calibration, after-treatment or cooling zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9115—Cooling of hollow articles
- B29C48/912—Cooling of hollow articles of tubular films
- B29C48/913—Cooling of hollow articles of tubular films externally
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/001—Tubular films, sleeves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Description
1250931 五、發明說明(1) 【發明所屬之技術領域】 本發明係有關於在利用熱可塑性樹脂製造管狀薄膜及 薄片時,藉由直接接觸自壓出機環狀模壓出之管狀熔融薄 膜内部,而能夠急速冷卻管狀熔融薄膜的冷卻用内部心 轴。 【先前技術】 先前,就有各種形式的裝置,其係在利用熱可塑性樹 脂製造管狀薄膜的工序中,使被壓出之薄膜直接接觸冷卻 液而加以冷卻。 例如,有使内部溢流館外側壁直接壓著保持於流下之 溢流液,以急冷固化之方法(日本特公昭4 5 - 3 5 1 9 2號專利 公報);在溢流液往下流之管徑規範用二重管下部,設置 有另一冷卻液流動之螺旋狀溝槽,以提高高速製膜性之方 法(曰本特公昭4 6 - 3 1 4 7 3號專利公報);使接觸冷卻液而 冷卻固化,同時藉由吸引附著液而去除附著液之方法(曰 本特公昭3 9 - 2 0 7 2號專利公報);更有甚者,有設置2段以 上之上部冷卻液喷出用環狀狹缝喷嘴的管狀薄膜冷卻用内 部心軸(日本特開平6-4 779 5號專利公報)等。 延伸性優良而且能夠長時間穩定製造薄膜之最大技術 重點,係在於如何使實質上無定形之薄膜,能夠連讀而穩 定地製造。這一點在使用冷卻用内部心軸的管狀法製膜設 備中,特別重要,其左右設備全體效率及管狀薄膜或薄片 製造之品質。 本發明群曾經提案過一種方法,係首先藉由多段冷卻
2066-5460-PF(Nl).ptd 第5頁 1250931 五、發明說明(2) 以提高冷卻能力,能夠顯著提高高速製膜性(曰本特開平 6 -47 7 9 5號專利公報)。藉此,雖然能夠使管狀熔融薄膜 大幅地高速化,但是,速度再提高的話,伴隨著薄膜之空 氣會增加,或者因為冷卻液量之增大使冷卻液中之含有空 氣量會增加,造成在管徑規範環下部蓄積空氣層之缺點。 上述空氣層會對熔融薄膜之成形性造成不良影響◦亦 即,雖然熔融薄膜係藉由外部水槽之水頭壓力和内部冷卻 液之水壓而達成平衡,但是,上述空氣層會破壞此平衡, 當壓力不平衡時,空氣層會通過薄膜和管狀規範環之間, 到達上部的冷卻液喷出用環狀喷嘴,在熔融薄膜進入冷卻 液的部分會裂開,造成薄膜冷卻不均勻或產生小孔。 這些問題,會造成因為無法連續延伸而使作業性降 低,以及冷卻不均而使管狀薄膜或薄片品質降低等,而對 於設備全體造成很大的影響。 接著,參照附圖詳細說明習知之冷卻用心軸。 第4圖係說明習知冷卻用内部心軸冷卻部之詳細圖。 先前,係藉由設置於下部冷卻部1 0之螺旋狀溝槽9, 使均勻分配之内部冷卻液和外部冷卻槽2 2的冷卻液,將管 狀薄膜4表面加以冷卻。 此時,被冷卻之管狀薄膜,係藉由下部冷卻液之内壓 和外部冷卻槽之水頭壓力而平衡,不接觸下部冷卻部1 0之 螺旋狀溝槽9,或者,管狀薄膜不自管徑規範環部6之下部 離開,而進入密封環部1 5。 可是,製膜速度增大之同時,伴隨著熔融管狀薄膜4
2066-5460-PF(Nl).ptd 第6頁 1250931 五、發明說明(3) 之空氣會增加,或者,上部冷卻液喷出用環狀喷嘴8或中 間冷卻液喷出用環狀喷嘴7及下部冷卻部1 0之冷卻液中含 有之空氣也會增大。 這些空氣,係在製膜中,以空氣層的形態滯留於管徑 規範環部6下部。流動於下部冷卻部1 0螺旋狀溝槽9之冷卻 液,係藉由下部排水口被排出,但是,滯留於管徑規範環 部6下部之空氣層1 2,卻不會往下部排水口 1 4側移動而排 出,而且隨著製膜時間之增加,空氣層1 2也會增大。 冷卻用内部心軸中,上述空氣層1 2會在下部冷卻部 1 0,破壞下部冷卻液之内壓和外部冷卻槽2 2水頭壓力之平 衡,自管狀薄膜和管徑規範環部6之間隙,成為氣泡往上 方之中間冷卻液喷出用環狀喷嘴7或上部冷卻液喷出用環 狀喷嘴8上升。此時,熔融管狀薄膜4會產生:上述空氣層 1 2上升後形成氣泡,在上部或中部冷卻液喷出用環狀喷嘴 部附近裂開,造成熔融管狀薄膜4因為冷卻不均而發生厚 度不均或產生小孔的不良問題。 【發明内容】 本發明群為了消除上述缺點,銳意檢討冷卻用内部心 轴,而完成本發明。 亦即,本發明係: (1 ) 一種管狀薄膜冷卻用内部心軸,將内部心軸與 外部環狀冷卻槽並用,以自内侧直接冷卻管狀熔融薄膜, 前述管狀熔融薄膜係結合於熱可塑性樹脂用環狀壓出模下 方,而且自模具之環狀狹缝向下方被壓出,其特徵在於:
2066-5460-PF(Nl).ptd 第7頁 1250931 五、發明說明(4) _ 一 使在内部心轴最下段部之内部冷卻液,、、六 ^ 薄膜的流動方向相同的方向。 ♦動於與管狀熔融 (2 )依上述第1項所述之管狀薄暝;人X 其中,在最下段部冷卻水之排液部中,、=°Ρ用内#心軸, 之排出口調整環,調整排液量及壓力。1用具濟螺紋構造 本發明内部心軸之特徵,係使最 動,使介翁麻—L I古Α 下丰又冷卻液往上方流 動便二I層在上升方向混入冷卻液,# 々一 環下部幾乎不會產生空氣層。 Θ此,在官徑規耙 藉此,能夠防止因為薄膜冷卻不均 或小孔,而成功地顯著提高高速製膜:”成-厚度不均 本發明能夠應用作為··上部;人 了疋性。 中部冷卻液噴出用環狀喷嘴之連續多^貫出用瓖狀喷嘴和 =,由上部冷卻液喷丄的最:段部, 段部。 用早獨構成心軸之最下 【實施方式;] ίι〜’Λ據附圖具體說明本發明之實施形態。 的概略圖' 糸第】=本發明内,心軸—實施形態之構造全體 ’弟2圖係說明上述内部心軸之冷卻部的詳細 圖。 、、 口、、扁龙1係安裴於壓出機而朝向下方的環狀模,熔融的 熱可塑性樹脂藉由壓出機通過模具内部之樹脂通路2,而 自環狀狹縫3向下方被麇出成管狀。編號5係懸吊於環狀模 之冷卻用内部心輛。冷卻用内部心軸5主要係由壓氣嘴出吴 喷嘴部18、上部冷卻^噴出用環狀噴嘴8、中間冷卻液噴
1250931 五 發明說明(5) —— :狀喷嘴7、管徑規範環部6、下部冷卻部内筒1 〇a及 15等6部分所構成,而略呈圓筒狀。 冷卻,内部心軸5最上部,設置有用於維持上述氣 i 7 ^f 3出喷嘴1 8及用於排出產生之氣體的排氣口 間的、U二欠〉專膜4形成於環狀模1和冷卻用内部心軸5之
Hi:冑,係藉由自冷卻液排出口16排出之壓氣、 氣的^虱口 1 7排出之壓氣及自壓氣喷出喷嘴1 8供給之壓 孔的千衡,而維持其形狀。 妝喑氧噴出喷嘴18下方,設置有上部冷卻液噴出用環 出用η广2間冷卻液噴出用環狀喷嘴7。以上部冷卻液喷 ^ =嘴8及中間冷卻液噴出用環狀喷嘴7之冷卻液冷 二、、奋融%狀薄膜4,係藉由管徑規範環部6規範 ^ 膜,再下降至下部冷卻部咖。 成间狀薄 ^在本發明之冷卻用内部心軸5 (第2圖)中,管 =。卩6之下部設置有下部冷卻部内筒丨〇a,下部冷卻彳庫巳 汉置於岔封環部1 5侧邊而且呈放射狀之下部冷卻液喑屮、 1 3 ’往下部冷卻部1 〇b之上方流出。 、口 、 又’在下部冷卻部内筒1 〇a上部,設置有具有螺 造之排出口調整環丨丨,而能夠調整中介有管狀薄犋/、 冷部槽2 2冷卻液水頭壓力和下部冷卻液内壓之平衡。邛 即’下部冷卻液係流向熔融管狀薄膜4,然後自 /、 整環11上部溢流。 出口調 如上構成之冷卻用内部心軸5,無論如何高迷 即使伴隨熔融管狀薄膜4之空氣,或者,上部冷卻液噴出
2066-5460-PF(Nl).ptd 第9頁 1250931 五、發明說明(6) 用環狀噴嘴8或中間冷卻液噴出用環狀喷嘴7所伴隨之空氣 及下部冷卻部1 0 b中冷卻液之空氣含量增大,下部A卻液 因為往上方流,所以,此時流入之空氣會與下部冷卻液一 同,自排出口調整環1 1上部之排出口排出到冷卻^排出口 1 6。因此,在管徑規範環部6下部,完全不存在空氣層, 空氣層不會變成氣泡而裂開,熔融管狀薄膜4也不會^為 冷卻不均造成厚度不均及產生小孔。
本發明雖然以下列之實施例詳細說明,但是,本發明 並不侷限於此。 X (第1實施例) 使尼龍樹脂6在溫度2 6 0 °C中,自具有壓出口徑55〇mm Φ環狀狹縫的環狀模,壓出熔融管狀薄膜,通過如第丨圖 所示形狀之冷卻用内部心軸5的外徑,以摺疊滾輪群2 3加 以摺疊後’藉由拉取滾輪24以40 m/min之速度實施薄膜拉 取作業。 、 、、 使用之冷卻用内部心軸,係第2圖所示之管徑規範環6 肩部最大直徑為548 ηπηΦ ;密封環15最大直徑為548麗 Φ ;下部冷卻部内筒l〇a之排出口調整環丨丨為5〇〇歷φ。 又,將20 t之地下水以2· 3 t /時之流量供給到内部 上部冷卻液導入孔1 9 ;將20 r之地下水以丨.〇 t
量供給到中間冷卻液導入孔2〇。 t /;,L 另外,將20 r之地下水以3· 0 t /時之流量供給到下 部冷卻液導入孔21,然後使冷卻液自安裝於下部冷卻部内 筒1 0a上部之排出口調整環丨丨和管徑規範環6根部部分之門
2066-5460-PF(Nl).ptd 第10頁 1250931 五、發明說明(7) 1. 0 mm間隙處流出,排出到冷卻液排出口 1 6。 又,將2 0 °C之地下水以4. 5 t /時之流量供給到外部 冷卻槽2 2,實施薄膜4之外部冷卻。 以上述方法所得之薄膜,平均厚度係1 4 5 // m,厚薄斑 之範圍係1 0 // m,平面性及透明性接非常優良。 又,運轉開始後,即使經過4 8小時,也沒有因為滯留 空氣層所造成的不良,上述薄膜之性能非常穩定。 (第1比較例) 在第1實施例中,以第4圖之下部冷卻部1 0取代第2圖 之下部冷卻部1 0 a,其他部分,則與第1實施例相同而冷卻 管狀薄膜4時,在開始運轉後1 0小時,因為空氣層而產生 冷卻厚薄不均。又,在開始運轉後40小時後,因為空氣層 而在管狀薄膜4發生小孔,造成無法繼續延伸。 【產業上可利用性】 如上所述,利用本發明之内部心軸時,即使以高速製 造薄膜,在管狀規範環下部也不會滯留空氣層,而能夠防 止因為空氣層所造成之問題,也能夠長時間製造具有穩定 厚度及平面性優良的管狀薄膜。 因此,在使用冷卻用内部心軸之管狀法製膜設備中, 能夠大幅提高設備全體之效率,以及提升管狀薄膜或薄片 之製造品質。
2066-5460-PF(Nl).ptd 第11頁 1250931 圖式簡單說明 第1圖係說明本發明内部心軸一實施形態之構造全體 的概略圖。 第2圖係說明本發明内部心軸一實施形態之冷卻部的 詳細圖。 第3圖係說明本發明内部心軸另一實施形態之冷卻部 的詳細圖。 第4圖係說明習知冷卻用内部心軸冷卻部之詳細圖 【符號說明】 4 管狀薄膜 10 下部冷卻部 9 螺旋狀溝槽 2 2 外部冷卻槽 6管徑規範環部 15密封環部 7 12 空氣層 1環狀模 3 環狀狹縫 1 8壓氣喷出喷嘴 1 7排氣口 1 0 b 下部冷卻部 11 排出口調整環 2 4 拉取滾輪 8 上部冷卻液喷出用環狀喷嘴 中間冷卻液喷出用環狀喷嘴 1 4 下部排水口 2 樹脂通路 5 冷卻用内部心轴 1 0 a 下部冷卻部内筒 16 冷卻液排出口 13 下部冷卻液喷出口 2 3摺豐滾輪群
19 内部上部冷卻液導入孔 2 0 中間冷卻液導入孔 2 1下部冷卻液導入孑L
2066-5460-PF(Nl).ptd 第12頁
Claims (1)
1250931 六、申請專利範圍 1. 一種管狀薄膜冷卻用内部心軸,將内部心軸與外部 環狀冷卻槽並用,以自内側直接冷卻管狀熔融薄膜,前述 管狀熔融薄膜係結合於熱可塑性樹脂用環狀壓出模下方, 而且自模具之環狀狹縫向下方被壓出, 其特徵在於: 使在内部心轴最下段部之内部冷卻液,流動於與管狀 熔融薄膜的流動方向相同的方向。 2. 如申請專利範圍第1項所述之管狀薄膜冷卻用内部 心轴,其中,在最下段部冷卻水之排液部中,利用具有螺 紋構造之排出口調整環,調整排液量及壓力。
2066-5460-PF(Nl).ptd 第13頁
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US11298865B2 (en) * | 2016-01-15 | 2022-04-12 | Addex, Inc. | High performance cooling system |
US11104054B2 (en) | 2016-01-15 | 2021-08-31 | Addex, Inc. | High performance cooling system |
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DE1404350A1 (de) * | 1958-06-02 | 1968-10-03 | Dow Chemical Co | Herstellung rohrfoermiger thermoplastischer Filme |
GB1043933A (en) * | 1963-07-24 | 1966-09-28 | Kokoku Rayon And Pulp Company | A novel process and apparatus for the production of tubular film of synthetic resin |
DE1504461B2 (de) * | 1964-02-21 | 1974-09-19 | Kalle Ag, 6202 Wiesbaden-Biebrich | Verfahren und Vorrichtung zur kontinuierlichen Herstellung von biaxial gestreckten, nahtlosen Schläuchen aus linearen Polyestern |
GB1104079A (en) * | 1964-03-26 | 1968-02-21 | Plastics Kogyo Co Ltd | Apparatus for producing synthetic resin tubes |
US3685576A (en) * | 1969-08-27 | 1972-08-22 | Exxon Research Engineering Co | Process and apparatus for forming tubular thermoplastic film |
CA949272A (en) * | 1969-09-24 | 1974-06-18 | Howard C. North | Cooling extruded thermoplastic films with counter current liquid streams |
SE388162B (sv) * | 1971-03-26 | 1976-09-27 | Exxon Research Engineering Co | Spruthuvud for kylning och formning av en strengsprutad rorformig film av termoplast |
GB1422325A (en) * | 1972-01-19 | 1976-01-28 | Bakelite Xylonite Ltd | Extrusion processes |
US4203942A (en) * | 1973-01-08 | 1980-05-20 | Exxon Research & Engineering Co. | Process for tubular water-bath polypropylene films |
JPS5038758A (zh) * | 1973-08-09 | 1975-04-10 | ||
JPS5649221A (en) * | 1979-09-27 | 1981-05-02 | Mitsubishi Plastics Ind Ltd | Cylindrical film cooling device |
JPS626489A (ja) | 1985-06-29 | 1987-01-13 | Toshiba Corp | 半導体記憶装置 |
JP3152972B2 (ja) | 1991-09-27 | 2001-04-03 | 株式会社興人 | 内部マンドレル |
CA2132955C (en) * | 1993-07-02 | 2004-09-14 | Tomozi Mizutani | Mandrel for cooling |
US6348015B1 (en) * | 2000-03-14 | 2002-02-19 | Callaway Golf Company | Golf club head having a striking face with improved impact efficiency |
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CN1625464A (zh) | 2005-06-08 |
US20050100623A1 (en) | 2005-05-12 |
US7140855B2 (en) | 2006-11-28 |
KR20040079928A (ko) | 2004-09-16 |
EP1475215A4 (en) | 2010-05-05 |
WO2003064137A1 (fr) | 2003-08-07 |
TW200305498A (en) | 2003-11-01 |
KR100641541B1 (ko) | 2006-10-31 |
JPWO2003064137A1 (ja) | 2005-06-09 |
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