1276532 九、發明說明： 【發明所屬之技術領域】 本發明係有關一種瓶口結晶加熱方法，主要是針對聚 酯容器需結晶化之瓶口處，加快其結晶速度，與製程後與 機具的分離容易性。 【先前技術】 聚酯容器一般市面為PET材質，PET為「聚對苯二甲 酸乙二酯」（Polyethylene Terephthalate )是將對苯二曱酸 與乙二醇聚合而成之飽和聚酯，本身具有良好的透明性、 光澤度及阻氣性，符合食品安全性標準，並可回收處理再 應用。PET 的玻璃轉移溫度（Glass transiti〇n temperature ;1276532 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a method for heating a bottle mouth crystal, which is mainly for a bottle mouth where a polyester container needs to be crystallized, to accelerate the crystallization speed thereof, and to separate from the machine after the process. Ease of use. [Prior Art] Polyester containers are generally made of PET, and PET is "Polyethylene Terephthalate" which is a saturated polyester obtained by polymerizing terephthalic acid and ethylene glycol. Good transparency, gloss and gas barrier, in line with food safety standards, and can be recycled and reused. Glass transition temperature of PET (Glass transiti〇n temperature;
Tg)介於75〜μι之間，射出成型溫度約為27〇〜3i(rc， 才果具溫度約為9〜15 °C。 ,聚酯容器已廣泛運用於各類產品之包裝容器如：水 觀、果汁瓶、汽水瓶、食用油瓶、化妝瓶、藥瓶、啤酒瓶、 =瓶洗潔精等。尤其是耐熱聚酉旨瓶市場的增長百分率 的以旨瓶市場，即碳酸飲料市場快得多。原因是， 聚醋瓶的技術已經成熟，因此，生產商開始轉 ΓΓ::聚酿瓶市場。财熱聚顆瓶主要有三方面應用， ^30八於权菌瓶月匕抵紫巴氏殺菌過程中65。〇的高溫達20 〜30为鐘，熱灌裝甑能板御 抵紫高達_ c，以及高溫熱灌裝瓶能把 率 要達到所期望的瓶子質量 就必須具備兩個先決條件 (特別是抗熱性）和最高產 ’即成熟的加工技術和良好 1276532 ==二耐熱=須經過特殊處理，在瓶㈣規格要 建到平衡。瓶胚β又计材料性質和工藝要求之間必須 斜㈣高熱與高壓的功效，所以特別都會 的物理盘、、、°曰曰化處理，以提高聚酯瓶瓶口耐溫耐壓 一j械特性’可為目前熱充填產品所應用。 _ J，仙田有之瓶σ結晶設備用的方法，請參閱「第1 固定於载體3^早—1 卜部加熱源20 ’當瓶胚10以瓶口 11 D u "之固定座31時，加熱源20對瓶胚10之瓶 U加熱’使瓶口丨丨結晶化。 之缺H單Γ加熱源2G使瓶口11之結晶化有速度太慢 有瓶口 I ’早一加熱源2〇對瓶口 11結晶化時，因為只 較内^ "，此時瓶口 11外側的聚㈣料因溫度 越古六^所以外側的結晶速度較内侧快，又因為結晶度 會：二二會越大，密度越大體積越小，所以瓶口 11内侧 髮、疋座31形成一收縮之徑向壓力，此一收縮之徑向 t發『結晶製程後的瓶胚1〇與固定座31的分離。 爰是’本發明之主要目的在於解決上述之單一加熱源 種利二^結晶化有速度太慢之缺失，本發明係提出一 C傳導之方法將熱能導至固定座，使熱能可快速平 π政於瓶Π ’加快瓶口結晶的速度，及更高的硬度。 熱，本發明之另一目的在於使結晶時瓶口内外同時受 “、、，使本發明之製程中無習知所產生的收縮之徑向壓力， 1276532 使結晶製程後的瓶胚與固定座的分離更容易。 本發明係一種瓶口結晶加熱方法，係利用外在加熱 能，當瓶胚以瓶口固定於載體之固定座時，一第一加熱源 直接對瓶口之外侧加熱，使瓶口結晶化；一第二加熱源， 該第二加熱源對固定座下方外露於瓶胚之一受熱座加 熱，使該受熱座吸熱後，再由受熱座將熱能傳導至固定 座；藉由該具熱能之固定座，使瓶口内外同時受熱，使熱 能可快速平均分散於瓶口。 藉由瓶口内外侧同時加熱之方式，使瓶口之結晶化 速度加快，又當瓶胚脫離加熱區後，進入風冷區，此時 瓶口外侧將會先内侧冷卻，即外侧會先停止結晶，而内 側繼續結晶，又因為結晶化時聚酯材料密度會變大，密 度越大體積越小，即内侧向前述已定型之外侧收縮，所 以本發明之製程中無習知瓶口内侧與固定座形成一收縮 之徑向壓力的現象，所以本發明之結晶製程後的瓶胚與 固定座的分離較習知更容易。 【實施方式】 茲有關本發明之詳細内容及技術說明，現配合圖式說 明如下： 請同時參閱「第2圖」所示，係本發明之加熱源配置 示意圖。如圖所示：一種瓶口結晶加熱方法，係針對瓶 胚10 (例如PET聚酯瓶）之瓶口 11結晶化之加熱方式提 出一種新方法，本發明係當瓶胚10於爐體60内時利用外 在加熱能，當瓶胚10以瓶口 11固定於載體50之固定 座51時，一第一加熱源41直接對瓶口 11之外側加熱， 使瓶口 11結晶化，且第一加熱源41上端設有一檔片 1276532 ，該擋片6!係用以遮擋第一加熱源 上擴散，確保瓶胚10除瓶口 u以 向 晶化’而本發明之特徵在於，除第=二= 用-第一加熱源42 ’該第二加熱源42係針對固定座Μ 露=胚：之受熱座52加熱，使該受熱座52 及熱後，再由受熱座52將熱能傳導至固定座Η。 :，該受熱座52與固定座51係為_膨 ^好 導熱材質，例如銘材或銅材。且，該受熱座以:面子 係可為一凹陷面，用以增加受熱面積。 ☆如此，俾藉該具熱能之固定座51，使瓶口 η内外同 時受熱’維持於120〜17〇。。之間的可結晶化溫度，使 熱能可快速平均分散於需結晶之瓶口 11内外側，使瓶口 之結晶化速度加快，且瓶口 u内外侧因為直接受埶， 而使内外侧較中間部份的結晶度高，硬度亦高。 又^瓶胚1 〇脫離具加熱源20加熱區後，將會進 入具有風冷設備的風冷區而急速冷卻，此時因瓶口 u 外侧先文風冷作用將會先内侧冷卻，即外侧會先停止結 晶而^型，而瓶口 u内侧這時因為固定座51降溫慢將 會繼續結晶，又結晶化的聚酯材料密度會變大，密度越 大體積越小，即内侧向前述已定型之外侧收縮，而此期 間該膨脹係數咼之良好導熱材質之受熱座52與固定座 51也因為溫度的下降而體積縮小，而形成該固定座51 内徑小於瓶口 11内徑之態樣，所以本發明之製程中無習 知瓶口内侧與固定座形成一收縮之徑向壓力的現象，使 結晶製程後的瓶胚1〇與固定座51於分離較習知更容 易。 !276532 έ1 ,該第—加熱源41與第二加熱源42係可選用近 ==源(near infrared)、遠紅外線 如 及電熱式熱風其中之一。 〜 強化整個瓶：11的物理性質，就必需擴大 m 以請再參閱「第3圖」所示，係於前述 10上之:厂、源-41上方加一第三加熱源43 ’直接對瓶胚 可，士曰:：,12加熱，使瓶口環12周邊之轉折處13 :::::瓶胚10除瓶口11結晶化為，該原習知不 =:形成一聚醋容器時，可改善該轉折i 3因 馮禾、、、〇 B曰化，而於碰撞時容易斷裂之情況。 惟上述僅為本發明之較佳實施例而已， ，發明實施之範圍。即凡依本發明申請專利 等變化與修飾，皆為本發明專利範圍所涵蓋 【圖式簡單說明】 弟1圖，係習知之單一加熱源示意圖。 並非用來限定 範圍所做的均 第2圖，係本發明之加熱源配置示意圖。 一實施方式之加熱源配置示意圖 第3圖，係本發明之另 【主要元件符號說明】 10 :瓶胚 11 ··瓶口 12 :瓶口環 13 :轉折處 20 :加熱源 3G > 5G :載體 1276532 31、51 :固定座 41 :第一加熱源 42 :第二加熱源 52 :受熱座 60 :爐體 61 :擋片Tg) is between 75~μιη, and the injection molding temperature is about 27〇~3i(rc, only the temperature is about 9~15 °C. The polyester container has been widely used in packaging containers of various products such as: Water view, juice bottles, soda bottles, edible oil bottles, cosmetic bottles, medicine bottles, beer bottles, = bottle detergents, etc. In particular, the growth rate of the market for heat-resistant polythene bottles is the bottle market, namely the carbonated beverage market. It is much faster. The reason is that the technology of the vinegar bottle has matured. Therefore, the producers began to switch to the following:: The market for the styrofoam bottle. The main purpose of the treasury bottle is three-way application. In the pasteurization process, 65. The high temperature of the crucible reaches 20 to 30 minutes, the hot-filled crucible plate can reach the purple as high as _ c, and the high-temperature hot-filled bottle can achieve the desired bottle quality. Two prerequisites (especially heat resistance) and the highest yield 'that is mature processing technology and good 1276532 == two heat resistance = must be specially treated, the bottle (four) specifications should be built to balance. Preforms beta material and process materials The requirements must be oblique (four) high heat and high pressure, so especially The physical disk, and 曰曰 处理 处理 , , 以 以 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯 聚酯Please refer to "1st fixed to the carrier 3^ early-1" heat source 20'. When the preform 10 is in the bottle holder 11 D u " the holder 31, the heating source 20 heats the bottle U of the preform 10 The bottle mouth is crystallized. The lack of H single heating source 2G makes the crystallization of the bottle mouth 11 too slow. There is a bottle mouth I 'early heating source 2 结晶 when the bottle mouth 11 is crystallized, because only the inner ^ ", at this time, the poly (four) material on the outside of the bottle mouth 11 is faster than the inner side because of the temperature, so the crystallinity will be faster than the inner side, and because the crystallinity will be higher, the larger the density, the smaller the volume, so the bottle The inner side of the mouth 11 and the sley 31 form a contracted radial pressure, and the contraction of the radial direction is "the separation of the preform 1 结晶 from the fixing seat 31 after the crystallization process. 爰 is the main purpose of the present invention is to solve The above single heating source species has a lack of speed, and the present invention proposes a C conduction method to heat Leading to the fixed seat, so that the thermal energy can be quickly pacified in the bottle Π 'speed up the crystallization of the bottle mouth, and higher hardness. Heat, another object of the present invention is to make the inside and outside of the bottle mouth at the same time by crystallization, ",,, The radial pressure of the shrinkage caused by the conventional process in the process of the present invention, 1276532 makes the separation of the preform and the fixed seat after the crystallization process easier. The present invention is a method for heating the bottle neck crystal by utilizing external heating energy. When the preform is fixed to the holder of the carrier by the mouth of the bottle, a first heating source directly heats the outer side of the bottle mouth to crystallize the bottle mouth; and a second heating source, the second heating source is exposed below the fixing seat After one of the preforms is heated by the hot seat, the heated seat absorbs heat, and then the heat is transferred to the fixed seat by the heated seat; by the fixed seat with heat, the inside and outside of the bottle mouth are simultaneously heated, so that the heat can be quickly and evenly dispersed. Bottle mouth. By the simultaneous heating of the inner and outer sides of the bottle mouth, the crystallization rate of the bottle mouth is accelerated, and when the preform is separated from the heating zone, it enters the air-cooling zone, and the outside of the bottle mouth will be cooled first, that is, the outer side will stop crystallization first. While the inner side continues to crystallize, and the density of the polyester material becomes larger due to crystallization, the density is larger, the smaller the volume is, that is, the inner side is shrunk to the outer side of the above-mentioned shaped, so that there is no conventional inner side and fixed in the process of the present invention. The seat forms a phenomenon of contracted radial pressure, so the separation of the preform and the holder after the crystallization process of the present invention is easier than conventional. [Embodiment] The details and technical description of the present invention will now be described with reference to the following drawings: Please also refer to "Fig. 2" for a schematic view of the arrangement of the heating source of the present invention. As shown in the figure: a bottle crystallization heating method, which proposes a new method for crystallization of the bottle mouth 11 of the preform 10 (for example, PET polyester bottle), and the present invention is when the preform 10 is inside the furnace body 60. When the preform 10 is fixed to the fixing seat 51 of the carrier 50 by the bottle opening 11, a first heating source 41 directly heats the outside of the bottle opening 11 to crystallize the bottle opening 11 and is first. The upper end of the heating source 41 is provided with a stopper 1276532 for blocking the diffusion on the first heating source, and ensuring that the preform 10 is removed from the bottle opening u to crystallize '. The present invention is characterized in that, except for the second=two = The first heating source 42 is used to heat the heated seat 52 of the fixed seat = = embryo: after the heated seat 52 is heated, the heat is transferred to the fixed seat by the heated seat 52. Hey. The heat receiving seat 52 and the fixing base 51 are made of a heat conductive material such as a name material or a copper material. Moreover, the heated seat can be a concave surface for increasing the heated area. ☆ In this way, the hot-spot holder 51 is used to maintain the inside and outside of the bottle neck η at the same time as being maintained at 120 to 17 〇. . The crystallization temperature between the two can be quickly and evenly dispersed in the inner side of the bottle mouth 11 to be crystallized, so that the crystallization rate of the bottle mouth is accelerated, and the inner side and the outer side of the bottle mouth are directly subjected to sputum, and the inner side and the outer side are relatively intermediate. Part of the crystallinity is high and the hardness is also high. And after the bottle embryo 1 is separated from the heating zone 20, it will enter the air-cooling zone with air-cooling equipment and rapidly cool. At this time, due to the air-cooling effect on the outer side of the bottle mouth u, the inside will be cooled first, that is, the outside. The crystallization will be stopped first, and the inside of the bottle mouth u will continue to crystallize due to the slow cooling of the fixing seat 51, and the density of the crystallized polyester material will become larger. The higher the density, the smaller the volume, that is, the inner side has been shaped. The outer side of the heating element 52 and the fixing seat 51 of the good thermal conductivity material are also reduced in size due to the decrease in temperature, and the inner diameter of the fixing seat 51 is smaller than the inner diameter of the bottle opening 11, Therefore, in the process of the present invention, there is no phenomenon that the inside of the bottle mouth and the fixing seat form a contracted radial pressure, so that it is easier to separate the preform 1 from the fixing seat 51 after the crystallization process. !276532 έ1, the first heating source 41 and the second heating source 42 may be selected from one of near==near infrared, far infrared ray and electrothermal hot air. ~ Strengthen the entire bottle: 11 physical properties, it is necessary to expand m. Please refer to the "3", as shown in the above 10: the factory, source -41 plus a third heating source 43 ' directly to the bottle The embryo can be, the gentry::, 12 is heated, so that the transition point around the mouth ring 12 is ::::: The preform 10 is crystallized except the bottle opening 11 , which is not known as: when forming a vinegar container It can improve the situation that the transition i 3 is easily broken due to the collapse of Feng He, , and 〇B. However, the above is only the preferred embodiment of the present invention, and the scope of the invention is implemented. That is, all the changes and modifications of the patent application according to the present invention are covered by the scope of the patent of the present invention. [Simple Description of the Drawings] Figure 1 is a schematic diagram of a single heating source. It is not intended to limit the scope of the second drawing, which is a schematic diagram of the heat source configuration of the present invention. FIG. 3 is a schematic diagram of a heat source arrangement according to an embodiment of the present invention. [Main component symbol description] 10: preform 11 · bottle mouth 12: bottle mouth ring 13 : turning point 20 : heat source 3G > 5G : Carrier 1276532 31, 51: fixing seat 41: first heating source 42: second heating source 52: heated seat 60: furnace body 61: blank