‘M341597 八、新型說明： 【新型所屬之技術領域】 本創作係與製造塑膠容器之設備有關，特別是有關於 一種能提高生產效能及節省能源的吹塑成型裝置。 【先前技術】 按，製造保特瓶（PET)等塑膠容器之方式通常係將合成 樹脂製成之瓶胚沿著運送路徑輸送，而以加熱器將瓶胚加 熱至吹塑成型所需之溫度，而後輸送至吹塑成型機構中， 以高壓氣體將瓶胚於模穴中吹塑成型，待吹塑成型後之容 器冷卻至一定溫度後再送出。而以吹塑方式製造此類塑膠 容器之設備通稱為吹瓶機或吹塑成型裝置。 .請參閱圖2，其係我國專利公告第365573號之「吹塑 成型裝置及成型方法」發明專利之結構配置示意圖。該吹 塑成型裝置具有一個供應預塑胚之預塑胚供應部81 ; —個 將預塑胚加熱至吹塑成型溫度之預塑胚加熱部82 ; —個將 加熱後之預塑胚吹塑成型為成品形狀的吹塑成型部83 ; — 個取出經吹塑成型為成品之成品取出部84 ;以及一個將預 塑胚循環運送至上述各部之預塑胚運送部85。 而該預塑胚運送部85具有承載預塑胚之複數運送構 件851，各運送構件均具有鏈輪以由循環繞設之運送鏈86 5 M341597 驅動運行，來運送預塑胚至前述各部。 且該吹塑成型裝置為了要提升對預塑胚的加熱效 率，因此在長矩形之預塑胚運送部85的一個短邊設置吹塑 成型部83,而在其它三邊分別設置預塑胚加熱部82a、 82b、82c，以延長對預塑胚的加熱時間來提升加熱效率。 然而，在長矩形之預塑胚運送部85設有吹塑成型部 83的這一個短邊上，並未設置有加熱部或相關的加熱設 備，而且吹塑成型部在將預塑胚吹塑成型為成品形狀的過 程需要一段吹塑成型時間，在這一段吹塑成型時間中預塑 胚運送部是處於停止行進的狀態。 換言之，預塑胚（或稱為瓶胚）在經過幾個加熱部加熱 至吹塑成型所需的溫度後，還要在曝露在室溫中一段時 間，這將可能導致預塑胚的溫度下降到低於吹塑成型所需 溫度的問題，或者是導致預塑胚的溫度分佈不均的問題。 不論何者，都可能造成吹塑後之成品不良的問題。 若要避免預塑胚的溫度下降所導致的問題，便需要在 加熱的過程中將預塑胚加熱至較高的溫度，但如此一來， 便會產生過度加熱而耗費電能的問題。 因此，前述之吹塑成型機結構仍有再加以改進之必要。 【新型内容】 6 M341597 本創作之主要目的，在於解決上述的問題而提供一種 於運送路徑的四個邊都設置加熱機構，而能確保瓶胚溫度 以提面生產政此及即源之吹塑成型機。 為達前述之目的，本創作之吹塑成型裝置係包括：一 個載送瓶胚行進的運送單元；一個將瓶胚送入運送單元的 瓶胚供應部；一個將瓶胚加熱到吹塑成型所需溫度的加熱 單元’其係沿著運送單元之運送路徑設置多組加熱機構； 一個將被加熱後之瓶胚吹塑成型為成品的成型部；一個將 吹塑完成之成品取出的取出部，該加熱單元係於長方形運 送路徑的四個邊分別設置加熱機構，且與設置成型部同一 邊的加熱機構係由數個加熱器所組成，各加熱器的間距與 數量係與成蜇部令所設置之成型模具的模穴相對應。 由於加熱單元係在運送路徑的四個邊上分別設置加熱 機，，並且設置在與成型部同一邊的加熱機構係由數個加 、斤、、且成，各加熱益的間距與數量係與成型部中所設置 成型模ip 型的過r果穴相對應，因此在成型部對瓶胚進行吹塑成 胚進行力中’各加熱器能持續對處於間歇停止的狀態各瓶 度，彳“力熱，以確保瓶胚溫度能維持於吹塑成型所需之溫 ς =而能提高生產效能，並且能避免過度加熱來達到節 名月匕源的致果。 Ί作之上述及其他目的與優點，不難從下述所選用 M341597 實施例之詳細說明與附圖中，獲得深入了解。 當然，本創作在某些另件上，或另件之安排上容許有 所不同，但所選用之實施例，則於本說明書中，予以詳細 說明，並於附圖中展示其構造。 【實施方式】 ' 請參閱圖1與圖2，其係本創作所選用較佳實施例之 * 結構示意圖。圖1係本創作之結構示意圖，圖2係本創作 之加熱器部份的結構示意圖。 本創作之吹塑成型裝置係用以將合成樹脂製成的瓶胚 加熱並吹塑成型為塑膠容器成品，該吹塑成型裝置係包括 有一運送單元1、一瓶胚供應部2、一加熱單元3、一成型 部4以及一取出部5。 該運送單元1具有一略呈長方形之運送路徑11，並於 該運送路徑11上設置多數滑塊載具12以承載瓶胚，並且 • 運送單元係以氣/液壓缸推動滑塊載具12的方式（此屬習 知技術且非本創作之特徵，在此不予贅述）來運送瓶胚。 該瓶胚供應部2係將瓶胚依序送入該運送單元1。 該加熱單元3係沿該運送路徑11的四個邊設置多組加 熱機構31、32、33、34、35，用以將瓶胚逐漸加熱到吹塑 成型所需溫度。 8 M341597 該成型部4係設置於長方形運送路徑11的其中一個短 邊’該成型部4可供一組模具41設置，該組模具41内可 設置多個成型用的模穴41a、41b、41c、41d (本實施例中 係以四個模穴為例繪示），使被加減之瓶胚在模穴中被吹 塑成型為成品。 該取出部5係設置於該運送路徑u位於該成型部4之 後的位置，以將吹塑完成之成品取出。 前述的加熱單元3係在該運送路徑U未設置成型部4 的三個邊分別設置加熱機構31、32、33、34，並且在各加 熱機構31、32、33、34上均設置一強制對流機構6，使各 加熱機構31、32、33、34内產生強制熱對流來對瓶胚加熱。 其中’加熱機構31係設置於該運送路徑11設置瓶胚供應 部2的同一邊，而加熱機構32係設置在該運送路徑丨丨位 _ 於瓶胚供應部2的下游的一邊，該加熱機構33、34係設置 在相對於該瓶胚供應部2的一邊，該加熱機構35則設在該 運送路徑11設置成型部4的同一邊。 而該加熱機構35係由數個加熱器35卜352、353、354 所組成，各加熱器351、352、353、354的間距與數量係與 成型部4中成型模具41之模穴41a、41b、41c、41d的間 距與數量相對應。並且各加熱器均具有一架體351a、352a、 353a、354a，各該架體係跨設於該瓶胚p兩側，且各該架 9 M341597 體351a、352a、353a、354a於對應瓶胚p的兩側分別設有 一電熱管3511)、3521)、353^ 3541)，俾以對瓶胚進行加熱。 由於各瓶胚是被各滑塊載具12以相同於各模穴41a、 41b、41c、41d間距的形式輸送，並且在成型部4對瓶胚 進行吹塑成型的過程中，各滑塊載具12是處於間歇停止行 進的狀悲’因此以相等於模穴4la、、Md的間距 與數量設置之加熱器35卜352、353、354，便能持續對處 於間歇停止的狀態各瓶胚進行加熱，以確保瓶胚溫度能維 寺；人2成型所需之溫度，如此便能避免因航胚溫度下降 匕f末的。人塑成品不良的問題；並且能並且能避免過 度加熱來達到節省能源的效果。 以上所述實施例之揭示係用以說明本創作，並非用以 限制本創作’故舉凡數值之變更或等效元件之置換仍應隸 屬本創作之範疇。 由以上詳細說明，可使熟知本項技藝者明瞭本創作的 確可達成前述目的，實已符合專利法之規定，爰提出專利 申請。 【圖式簡單說明】 圖1係本創作之結構示意圖； 圖2係本創补+ i 乍之加熱器部份的結構示意圖；及 M341597 圖3係我國專利公告第365573號專利之結構示意圖。 【主要元件符號說明】 運送單元1 運送路徑11 滑塊載具12 瓶胚供應部2 >加熱單元3 加熱機構 31、32、33、34、35 加熱器 351、352、353、354 架體 351a、352a、353a、354a 電熱管 351b、352b、353b、354b 成型部4 模具41 _ 模穴 41β、41b、41c、41d • 取出部5 強制對流機構6 預塑胚供應部81 預塑胚加熱部82 預塑胚加熱部82a、82b、82c 吹塑成型部83 M341597 成品取出部84 預塑胚運送部85 運送構件851 運送鏈86‘M341597 VIII. New Description: 【New Technology Area】 This creation is related to the equipment for manufacturing plastic containers, especially for a blow molding device that can improve production efficiency and save energy. [Prior Art] According to the method of manufacturing plastic containers such as PET bottles, the preforms made of synthetic resin are usually transported along the transport path, and the preforms are heated by the heater to the temperature required for blow molding. Then, it is conveyed to the blow molding mechanism, and the preform is blow-molded in the cavity with high pressure gas, and the container after the blow molding is cooled to a certain temperature and then sent out. Equipment that manufactures such plastic containers by blow molding is known as a blow molding machine or a blow molding device. Referring to Fig. 2, it is a schematic structural view of the invention patent of "Blow Molding Apparatus and Forming Method" of Chinese Patent Publication No. 365573. The blow molding device has a pre-plasticized embryo supply portion 81 for supplying pre-plasticized embryos; a pre-plasticized embryo heating portion 82 for heating the pre-plasticized preform to a blow molding temperature; and a pre-molded embryo blow molding after heating A blow molding portion 83 molded into a finished shape; a finished product take-out portion 84 that is blow molded into a finished product; and a pre-mold transfer portion 85 that transports the pre-plasticized preform to the respective portions. The pre-mold delivery portion 85 has a plurality of transport members 851 carrying pre-plasticized preforms, each of which has a sprocket for driving by a recirculating transport chain 86 5 M341597 to transport the pre-mold to the aforementioned portions. Further, in order to increase the heating efficiency of the preformed preform, the blow molding apparatus is provided with a blow molding portion 83 on one short side of the long rectangular preform transfer portion 85, and preplasticized heaters on the other three sides. The portions 82a, 82b, and 82c increase the heating efficiency by extending the heating time for the preform. However, on the short side of the long rectangular preform transfer portion 85 provided with the blow molding portion 83, no heating portion or associated heating device is provided, and the blow molding portion blows the preformed preform The process of forming into a finished shape requires a period of blow molding in which the preformed preform transport portion is in a state of being stopped. In other words, the preformed embryo (or the preform) is heated to the temperature required for blow molding after several heating sections, and is also exposed to room temperature for a period of time, which may cause the temperature of the preform to drop. The problem is lower than the temperature required for blow molding, or the temperature distribution of the preform is uneven. Either way, it may cause problems with defective finished products after blow molding. To avoid the problems caused by the temperature drop of the preform, it is necessary to heat the preform to a higher temperature during the heating process, but this causes a problem of excessive heating and power consumption. Therefore, the aforementioned blow molding machine structure still needs to be further improved. [New Content] 6 M341597 The main purpose of this creation is to solve the above problems and provide a heating mechanism on all four sides of the transport path, and to ensure the preform temperature to prepare the surface and the blow molding. Forming Machine. For the purposes of the foregoing, the blow molding apparatus of the present invention comprises: a transport unit carrying the preforms; a preform supply unit for feeding the preforms to the transport unit; and a preform for heating the preforms to the blow molding station a heating unit that requires temperature is provided with a plurality of sets of heating mechanisms along a transport path of the transport unit; a molded portion that blows the heated preform into a finished product; and a take-out portion that takes out the blow molded finished product, The heating unit is provided with heating means on each of four sides of the rectangular conveying path, and the heating mechanism on the same side as the forming part is composed of a plurality of heaters, and the pitch and number of the heaters are combined with the number of the heaters. The cavities of the forming molds are set to correspond. Since the heating unit is respectively provided with heating machines on four sides of the conveying path, and the heating mechanism disposed on the same side of the forming portion is composed of a plurality of adding, jin, and merging, the spacing and quantity of each heating benefit are The forming part ip type of the r-shaped fruit hole is provided in the molding part, so that in the molding part, the preform is blown into the embryo, and the heaters can continue to be in the state of intermittent stop, 彳" Heat and heat, to ensure that the preform temperature can be maintained at the temperature required for blow molding = can improve production efficiency, and can avoid excessive heating to achieve the fruit of the name of the moon. The above and other purposes of Advantages, it is not difficult to obtain in-depth understanding from the detailed description of the embodiment selected in the following M341597 and the drawings. Of course, this creation is allowed to be different on some parts, or the arrangement of the parts, but it is selected. The embodiments are described in detail in the present specification, and the configuration thereof is shown in the drawings. [Embodiment] Referring to FIG. 1 and FIG. 2, it is a schematic diagram of a preferred embodiment of the present invention. Figure 1 is the book Schematic diagram of the structure of the creation, Figure 2 is a schematic diagram of the structure of the heater part of the creation. The blow molding device of the present invention is used for heating and blow molding a preform made of synthetic resin into a finished plastic container, the blow molding The molding apparatus includes a transport unit 1, a preform supply unit 2, a heating unit 3, a molding unit 4, and a take-out portion 5. The transport unit 1 has a slightly rectangular transport path 11 and is in the transport path. A plurality of slider carriers 12 are disposed on the 11 to carry the preforms, and • the transport unit is driven by the gas/hydraulic cylinder to push the slider carrier 12 (this is a prior art technique and is not a feature of the present invention, and will not be described herein. The preform supply unit 2 sequentially feeds the preforms into the transport unit 1. The heating unit 3 is provided with a plurality of sets of heating mechanisms 31, 32, 33 along four sides of the transport path 11. 34, 35, for gradually heating the preform to the temperature required for blow molding. 8 M341597 The molding portion 4 is disposed on one of the short sides of the rectangular conveying path 11 'The forming portion 4 is provided for a set of molds 41, The set of molds 41 can be set in the mold 41 The mold cavities 41a, 41b, 41c, and 41d for molding (in the present embodiment, four mold cavities are taken as an example), so that the added and subtracted preforms are blow molded into a finished product in the cavity. The take-up portion 5 The conveying path u is disposed at a position behind the molding portion 4 to take out the blow molded finished product. The heating unit 3 described above is provided with heating mechanisms 31 respectively on three sides of the conveying path U where the molding portion 4 is not provided. 32, 33, 34, and a forced convection mechanism 6 is provided on each of the heating mechanisms 31, 32, 33, 34 to cause forced heat convection in each of the heating mechanisms 31, 32, 33, 34 to heat the preform. Wherein the 'heating mechanism 31 is disposed on the same side of the transport path 11 where the preform supply unit 2 is disposed, and the heating mechanism 32 is disposed on the side of the transport path clamped downstream of the preform supply unit 2, the heating mechanism 33 and 34 are provided on one side of the preform supply unit 2, and the heating mechanism 35 is provided on the same side of the conveyance path 11 where the molding unit 4 is provided. The heating mechanism 35 is composed of a plurality of heaters 35, 353, 353, and 354, and the pitch and the number of the heaters 351, 352, 353, and 354 are matched with the mold holes 41a and 41b of the molding die 41 in the molding portion 4. The spacing of 41c, 41d corresponds to the number. And each of the heaters has a body 351a, 352a, 353a, 354a, each of the frame systems spanning on both sides of the preform p, and each of the frames 9 M341597 bodies 351a, 352a, 353a, 354a are corresponding to the preforms p There are respectively an electric heating tube 3511), 3521), 353^3541) on both sides to heat the preform. Since each of the preforms is conveyed by the respective slider carriers 12 in the same manner as the pitch of the respective cavities 41a, 41b, 41c, 41d, and in the process of blow molding the preforms in the molding portion 4, each of the sliders is loaded. The 12 is in a state of intermittent stop travel. Therefore, the heaters 35 352, 353, and 354 which are disposed at equal intervals and numbers of the mold holes 4la, Md can continue to perform the preforms in the intermittent stop state. Heating to ensure the temperature of the preform can be used for the temple; the temperature required for the formation of the person 2, so as to avoid the drop in the temperature of the aerial embryo. The problem of poor man-made products; and can and can avoid excessive heating to achieve energy-saving effects. The above description of the embodiments is intended to be illustrative of the present invention and is not intended to limit the scope of the present invention. From the above detailed description, it will be apparent to those skilled in the art that the present invention can achieve the foregoing objectives, and it has been in compliance with the provisions of the Patent Law and has filed a patent application. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic structural view of the present invention; FIG. 2 is a schematic structural view of a heater portion of the present invention; and M341597 FIG. 3 is a schematic structural view of Patent No. 365573 of the Chinese Patent Publication No. 365573. [Description of main component symbols] Transport unit 1 Transport path 11 Slider carrier 12 Preform supply unit 2 > Heating unit 3 Heating mechanism 31, 32, 33, 34, 35 Heater 351, 352, 353, 354 Frame 351a 352a, 353a, 354a electric heating tubes 351b, 352b, 353b, 354b molding portion 4 mold 41_ mold cavities 41β, 41b, 41c, 41d • take-out portion 5 forced convection mechanism 6 pre-mold supply unit 81 pre-mold heating unit 82 Pre-mold heating portion 82a, 82b, 82c Blow molding portion 83 M341597 Finished product take-out portion 84 Pre-mold delivery portion 85 Transport member 851 Transport chain 86