504450 經濟部智慧財產局員工消費合作社印製 第88106964號專利申請案 中文說明書修正頁五、發明説明（1 ) 〔產業上之利用領域〕 本發明係有關於一種吹塑形成裝置及吹塑成形方法， 特別是有關於在吹塑成形工程時’將預成形品加以氣密密 封之技術。 〔習知之技術〕 針對習知例如將合成樹脂製的容器等，加以吹塑成形 之吹塑成形裝置，乃在預先成形的預成形品內部導入高壓 吹塑氣，並根據需求，一面以延伸桿進行縱軸延伸，一面 將預成形品吹塑形成容器。 實際實施此吹塑成形工程，必需將預成形品的內部， 針對外部做氣密密封，一旦氣密不足就會產生漏氣。 在此普遍是將預先成形的預成形品，以頸部向下的倒 立狀態，搬送至吹塑成形部之吹塑成形裝置。在搬送此倒 立狀態的預成形品，係將具凸緣部的中空筒狀之搬送用插 銷，準備在搬送構件，預成形品的頸部則被插通至搬送用 插銷，而能將預成形品倒立支撐在凸緣部上的構造爲周知 的。此種搬送用插銷，係作成心軸被揭示在美國發明第 Fi，3 4 0，3 0 2 號公報。 將該揭示在美國發明的構造，參照附上與使用在美國 發明的實施例符號相同的符號之第5圖至第7圖做說明。 第5圖係與上述美國發明之第5圖相同，爲吹塑成形部之 斷面圖。第6圖係與上述美國發明之第3圖相同，爲第5 圖所示的吹塑嘴9 0上昇前的狀態的第5圖之部分放大504450 Intellectual Property Bureau, Ministry of Economic Affairs, Employee Consumption Cooperative, Printed Chinese Patent Application No. 88106964 Amendment Page V. Description of Invention (1) [Industrial Application Field] The present invention relates to a blow molding device and a blow molding method In particular, it is related to the technique of 'hermetically sealing the preform during the blow molding process. [Know-how] For conventional blow-molding devices that blow-mold containers made of synthetic resin, etc., high-pressure blow molding gas is introduced into the pre-formed pre-formed product, and an extension rod is used as needed. The longitudinal axis is extended, and the preform is blow-molded to form a container. Actually implementing this blow molding process, it is necessary to hermetically seal the inside of the preform to the outside, and air leakage will occur if the air tightness is insufficient. In this case, a preform that has been formed in advance is generally transferred to a blow molding apparatus in a blow-molded section in a neck-down state. When the preforms in the inverted state are transported, the hollow cylindrical transport pins with flanged portions are prepared, and the necks of the preforms are inserted into the transport pins to prepare the preforms. The structure in which the product is supported upside down on the flange portion is well known. Such a transfer pin is disclosed as a mandrel and is disclosed in U.S. Patent Publication No. Fi, 340,302. The structure of the invention disclosed in the U.S. will be described with reference to Figs. 5 to 7 with the same symbols as those used in the embodiment of the U.S. invention. Fig. 5 is the same as Fig. 5 of the above-mentioned U.S. invention, and is a sectional view of a blow-molded portion. Fig. 6 is the same as Fig. 3 of the above-mentioned U.S. invention, and is an enlarged part of Fig. 5 showing a state before the blowing nozzle 90 shown in Fig. 5 is raised.
FC (請先閲讀背面之注意事項再填寫本頁) 澤· 、-口 本纸張尺度適用中.國國家標準（CNS ) A4規格（210X297公釐） -4 - 504450 A7 B7 五、發明説明（2 ) (請先閲讀背面之注意事項再填寫本頁) 圖。第7圖係與上述美國發明之第6圖相同，爲第5圖所 示的吹塑嘴9 0上昇後的狀態的第5圖之部分放大圖。再 者，於第5圖至第7圖中具有未表示在以下說明的符號， 但於本申請案不需要的緣故，而省略其說明。 於第5圖中，倂合模4 1、4 2係分別被固定在合模 板4 3、4 4，而可開關的。保持手段6 0係具有被支撐 在製模板之主軸部份6 3及其上之心軸6 4，分別對應於 吹塑嘴9 0上昇前及上昇後，可移動到初期位置（第6圖 所示之位置）與上昇位置（第7圖所示之位置）。 於形成在心軸6 4的溝6 6，係安裝著〇型環構件 6 8。說明此◦型環構件6 8，係插通至心軸6 4來壓縮 預成形品（型坯）6 1，經搬送、定位及合模的期間，在 心軸6 4上保持預成形品6 1的作用。 在拼合模4 1、4 2設有形成保持用凸緣7 2之定位 手段7 6、7 6。 在吹塑嘴9 0上昇前的狀態，如第6圖所示，在定位 手段7 6的下面8 1和與此相對的心軸6 4的相對面8 0 之間形成間隙。 一旦吹塑嘴9 0上昇，即如第7圖所示，主軸部份 6 3及心軸6 4會上昇，接觸上述兩個面8 0、8 1。此 時，預成形品（型坯）6 1的凸緣了 5，會接近到定位手 段7 6的保持用凸緣7 2。雖於第7圖看見兩個凸緣 7 2、7 5予以接觸，但於上述美國發明，係說明其間具 有0 · 0 0 8吋的間隙（參照列6 (column)的第2 8行至第 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） -5 - 504450 A7 _______B7__ 五、發明説明（3 ) 3 7 行）。 (請先閲讀背面之注意事項再填寫本頁) 此外，還說明預成形品6 1的凸緣7 5，會接近到定 位手段7 6的保持用凸緣7 2，預成形品6 1的頸部會彎 曲變形，提高〇型環構件6 8的密封效果（參照列6的第 3. 7行至第4 0行）。 . 若按照上述美國發明的構造，會產生以下的問題。 首先，吹塑成形工程時的氣密密封，爲實現緊密的接 觸〇型環構件6 8與預成形品6 1的內壁。顯然此不可或 缺的0型環構件6 8的存在，就心軸6 4而言，乃難以插 入預成形品6 1 ，且難以將吹塑成形後的容器自心軸6 4 脫離。特別是加快吹塑成形的循環時間，達到提升生產量 時，並無視於相對於心軸6 4的成型品插脫所需的時間損 .失。 此外，〇型環構件6 8，會因成形品相對於心軸，做 重覆插脫而劣化，成爲替換性高的消耗品，包括其更換時 期管理的維修均極爲困難。 唑齊-^』曰逄吋4 5肖工力費釜焯a卬製 — - ·ϋι 甚至，若〇型環構件6 8爲劣化的狀態，而進行吹塑 成形的話，不但會產生漏氣還會產成成形不良，會因高壓 氣向外部漏氣成爲極危險的狀態。 此例，從0型環構件6 8所漏出的高壓氣，會被導入 第7圖所示的預成形品2 1的頸部與定位手段之間。此 時，若在第7圖所示的預成形品6 1的凸緣7 5與定位手 段7 6的保持用凸緣7 2之間，具有上述的間隙的話，會 因漏出的高壓氣，將預成形品向上推。藉此，若預成形品 i紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐) c - '~ 504450 A7 _ B7 二一 _ — ' _ ' 11--- 五、發明説明（4 ) (請先閲讀背面之注意事項再填寫本頁) 6 1的頸部的開口端面（第7圖所示的預成形品6 1之下 端面）、和自心軸6 4突出於水平的面8 0之間的間隙會 擴大，更加助長高壓氣的漏失。 〔發明重點〕 於是，本發明之目的在於提供一於吹塑成形時能將成 形品確實的予以氣密密封之吹塑成形裝置及吹塑成形方 法。 本發明之另一目的在於提供一不用將〇型環構件等的 密封構件安裝在搬送用插銷，成形品就能輕易相對於搬送 用插銷做插脫，且.並不需要使用氣密密封的消耗品，就能 輕易維護之吹塑成形裝置及吹塑成形方法。 本發明之再另一目的在於提供一即使在吹塑成形前， 將預成形品的軀幹部予以加熱工程的場合，還是能防止因 加熱工程，而受到熱的影響的區域，引起變形漏氣之吹塑 成形裝置及吹塑成形方法。 本發明針對具有：支撐具備有開口端面及被限制構件 之頸部和具有連接在此的軀幹部之預成形品而予以搬送之 搬送構件、和 具有可開關之倂合模，且將被支持在前述搬送構件的 前述預成形品，吹塑形成容器之吹塑模槽、和 於前述倂合模閉鎖時，包圍前述預成形品的前述頸部 之包圍構件、和 於前述倂合模閉鎖後，向著前述搬送構件而移動，且 本紙伕尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） 504450 A7 B7 五、發明説明（5 ) 透過前述搬送構件，在前述預成形品內部導入吹塑流體之 吹塑嘴之吹塑成形裝置，其特徵爲： 前述搬送構件係包含有： 將來自前述吹塑嘴的前述吹塑流體導至前述預成形品 內部之搬送用插銷、和 將支撐前述預成形品的前述搬送用插銷，沿著前述預 成形品的軸向而可移動的予以支撐之搬送構件本體； 前述搬送用插銷係包含有： 被插入前述預成形品的前述頸部，而導入前述吹塑流 體之中空軸部、和 接觸到前述頸部的前述開口端面，而將開口端面加以 氣密密封之密封用凸緣； 前述包圍構件係具有在隨著前述預成形品的移動，而 移動前述搬送用插銷時，在前述包圍構件與前述密封用凸 緣部接觸之前，會抵接在前述頸部的前述被限制構件，而 加以限制前述預成形品及前述搬送用插銷的移動之限制構 件。 此外，本發明方法係爲最適用於本發明之吹塑成形裝 置，而完成實施之吹塑成形方法。 若按照本發明裝置及方法，經由閉鎖吹型模槽，利用 包圍構件來包圍預成形品的頸部周圍。然後，隨著吹塑嘴 的移動，來移動支持預成形品的搬送用插銷及密封用凸緣 部。並且，被形成在預成形品頸部的被限制構件，會與形 成在包圍構件的限制構件一起抵接。藉此，即可限制該預 (請先閲讀背面之注意事項再填寫本頁) ,0 裝· 訂 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -8- 504450 經濟部眢蒽財4¾ ®工4費合作fi印災 A7 ___ B7五、發明説明(6 ) 成形品與支持預成形品的搬送用插銷以及密封用凸緣部的 移動。藉此，預成形品頸部的開口端面，會密貼在密封用 凸緣部，而形成氣密密封。因而，就能確實地防止在之後 的吹塑成形時，被導入預成形品內部的吹塑流體漏至外 部。 形成此氣密密封的程度，並不需要在搬送用插銷安裝 〇型環構件等密封構件。因而，能極圓滑地實施，針對搬 送用插銷’插入預成形品的動作，與自搬送用插銷脫離吹 塑形成容器的動作。甚至，沒有密封構件等消耗品的緣 故，維修變得很容易。 本發明裝置更具有用以加熱支撐在前述搬送構件的前 述預成形品的前述軀幹部之加熱裝置； 前述預成形品的前述頸部，在離開該頸部與前述軀幹 部邊界位置的位置具有前述被限制構件； 前述包圍構件的前述限制構件最好是抵接在減少來自 前述加熱裝置的熱影響的前述被限制構件。 一但如此’作爲制動器功能的預成形品的被限制構 件，形成在難以因加熱裝置的熱影響的位置之緣故，即使 在與限制構件抵接時，壓力作用到被限制構件，還是能減 低該被限制構件未預期的變形，以確保作爲制動器的功 能。並且，可確保被限制構件的制動器功能，以確實地確 保利用頸部的開口端面與密封用凸緣部形成的氣密密封。 此被限制搆件可作爲通常被設在頸部的凸緣。 本發明裝置，係在前述預成形品的前述頸部形成有： (請先閲讀背面之注意事項再填寫本頁) -裝· 訂 本纸張尺度適用中國國家標準（CNS )八4%格（210X297公釐） -9- 504450 A7 B7 五、發明説明（7 ) 配置在接近前述軀幹部位置之第1凸緣、和 比前述第1凸緣較位於前述開口端面側之第2凸緣； 前述包圍構件的前述限制構件最好是抵接在前述第2 凸緣。 • 一旦如此，·受加熱裝置的熱影響，第2凸緣具有的制 動功能比第1凸緣少。此例，在吹塑成形的容器頸部，形 成輔助環及制動環的情形下，輔助環是相當於第1凸緣， 制動環則是相當於第2凸緣。因而，在此情形下能將既存 的凸緣作爲制動器來利用。 本發明裝置最好是在前述限制構件與前述第2凸緣抵 接時，能在前述第1凸緣與前述包圍構件之間，確保設計 尺寸上的間隙。 製做成此種設計尺寸，能確實地確保第2凸緣的制動 器功能。 本發明裝置最好是能在前述搬送用插銷的前述中空軸 部與前述頸部的內面之間，確保設計尺寸上的間隙。此構 造與習知技術所說明的美國發明之構造並不相同，是積極 的定義在頸部內面進行氣密密封。藉此，成形品亦可圓滑 地對搬送用插銷進行插脫動作。 〔本發明之最佳實施例說明〕 以下就本發明之實施形態，參照圖面做詳細地說明。 第1圖係有關本發明之吹塑成形裝置的吹塑成形部之 斷面圖。於第1圖中，在吹塑成形部，配置有以可開閉的 -裝-- (請先閱讀背面之注意事項再填寫本頁) 訂 本紙張尺度適用中國國家標準（CNS ) A4規格（210X29*7公釐） -10- 504450 A7 _ B7五、發明説明（8 ) . 一對倂合模1 0 0 A，1 〇 〇 B所組成之吹型模槽 1 0 0。第1圖係預成形品1 0 2位於一對倂合模 1 0 0 A，1 0 0 B內的閉模狀態。 預成形品1 0 2係利搬送構件1 1 〇所支撐的，並被 搬入此吹塑成形部。於該搬入時，打開倂合模1 0 0 A， 1 0 0 B，於預成形品1 0 2搬入後，閉鎖驅動倂合模 1 0 0 A，1 0 0 B。 預成形品1 0 2係具有頸部1 0 4與連接頸部之軀幹 部106。在頸部104形成有開口端面104A、和螺 紋部1 0 4 B、和制動環1 0 4 C、和輔助環1 〇 4 D。 輔助環1 0 4 D爲第1凸緣，制動環1 〇 4 C爲第2凸 緣。 搬送構件1 1 0，係如第1圖所示，具有搬送用插銷 1 1 2、和第1筒體1 14、和第2筒體1 1 6。搬送用 插銷1 1 2係具有密封用凸緣部1 1 2A、和分別突出在 其上側及下側之第1，第2中空軸1 1 2 B，1 1 2 C。 搬送用插銷1 1 2的第1中空軸1 1 2B，係插通至預成 形品1 0 2的頸部1 0 4，在密封用凸緣部1 1 2 A上， 以倒立狀態予以立設支撐著預成形品1 0 2。並未在此搬 送用插銷1 1 2的第1中空軸1 1 2B安裝〇型環構件等 密封構件。能在此第1中空軸1 1 2B與頸部1 0 4的內 壁之間，以不傾斜預成品1 0 2的程度，稍稍確保設計尺 寸上的間隙。 第2中空軸1 1 2B是被插入第1筒體1 1 4，在自 (請先閲讀背面之注意事項再填寫本頁} 本紙張尺度適用中國國家標率（CNS ) A4規格（210X297公釐） -11 - 504450 A7 __ _ B7 _ 五、發明説明（9 ) 第1筒體1 1 4的下端突出的位置，具有防止脫落用的c 型環構件1 1 2D。第1筒體1 1 4，係可以旋轉搬送用 插銷1 1 2且可滑動地支撐在軸向。更在第1筒體1 1 4 固定有鏈輪118。 .第1筒體114是透過軸承119，而旋轉自如地被 支撐在第2筒體116的內部。第2筒體116係具有： 被固定在搬送用鏈條1 2 0所搬送驅動之被驅動片 1 2 2、和與具有凸輪功能的導軌1 2 4加以轉接之凸輪 從動件1 2 6。此第1，第2筒體1 1 4，1 1 6，係構 成搬送用插銷1 1 2移動自如地支撐在軸向的搬送構件本 am 體。 再者，搬送用鏈條1 2 0，係沿著循環運送搬送構件 1 1 0的搬送路徑而被張設在本吹塑成形裝置，沿著搬送 路徑而間歇性的運送搬送構件1 1 〇。此搬送用鏈條 120係被鏈軌128所包圍。 在吹塑成形部，乃於搬送構件1 1 0的停止位置下方 配置吹塑核心模1 3 0。此吹塑核心模1 3 0是透過配置 在本吹塑成形裝置的機台2 0 0上的吹塑成形固定台 2 0 2，而被固定在機台2 0 0。 此吹塑核心模1 3 0係具有：被固定在吹塑成形部固 定台2 0 2之吹塑核心本體部1 3 2、和可相對於吹塑核 心本體部而昇降之吹塑嘴1 3 4。在吹塑核心本體部 134內配置有延伸桿135。此延伸桿135，係利用 圖未表示的驅動裝置，於吹塑成形時被驅動，而插通吹塑 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) Μ規格（210Χ297公釐） -12· 504450 經濟部智慧財4¾肖工消費合作社印災 A 7 _ B7_五、發明説明（10 ) 嘴1 3 4、搬送用插銷1 12，而將預成形品1 0 2做縱 軸延伸驅動。在吹塑核心本體部1 3 2連接有高壓氣配管 1 3 6。而在吹塑嘴1 3 4係於上側連接有第1配管 1 38A，下側連接有第2配管1 38B。 第1圖係表示對第2配管1 3 8 B導入空氣的狀態’ 吹塑嘴1 3 4係位於最下點。另一方面，對第1配管 1 3 8A導入空氣，使吹塑嘴1 3 4上昇。在吹塑嘴 1 3 4的上端配置有墊圏1 3 4 A，於吹塑.嘴1 3 4上昇 時，墊圈1 3 4A就會密貼在搬送用插銷1 1 2的下端’ 以連通吹塑嘴1 34與搬送用插銷1 1 2。吹塑嘴1 34 更加上昇，就能將搬送用插銷1 1 2往上推使之移動。 其次，針對利用吹塑嘴1 3 4，往上推動搬送用插銷 1 1 2，而將預成形品1 0 2的內部加以氣密密封的構造 做一說明。 首先，設有如第1圖所示，於一對倂合模1 0 0A， 1 0 0 B的閉鎖移動做連動，而作爲包圍預成形品1 0 2 的頸部1 0 4周圍的包圍構件之一對頸導片1 4 0， 140。此一對頸導片140，140亦可直接固定在倂 合模100A， 100B，或像是揭示於特開平第9一 2 4 5 4 0號公報，將可水平滑動的被支撐在倂合模 100A，100B的一對頸導片140，140，藉由 彈簧向著互相接近的方向推迫亦可。關鍵在於一對頸導片 140，140，於倂合模100A，100B閉鎖時， 只要是配置在預成形品1 0 2的頸部1 0 4的周圍，其支 (請先閱讀背面之注意事項再填寫本頁) 本纸張尺度適用中國國家標準（CNS ) A4洗格（210X29*7公釐） -13- 504450 經濟部智慧財4^8工消費合汴社印製 A7 B7五、發明説明（11 ) 撐構造就可置之不問。 參照第2圖及第3圖詳細的說明此頸導片r 4 0。 第2圖係表示搬送用插銷112上昇前的預成形品 10 2的支撐構造，第3圖係表示搬送用插銷1 12上昇 後的預成形品1 〇 2的支撐構造。 如第2圖所示，在搬送用插銷1 1 2上昇前，頸導片 1 4 0內壁的一部份，是設計成與頸部1 0 4的任何部位 的外壁接觸。接觸到頸導體1 4 0的內壁之處，可做成螺 紋部1 0 4 B、制動環1 0 4 C以及輔助環1 〇 4 D之中 的一部分或是全部。此頸導片1 4 0的一部份是接觸到頸 部104外壁的一部份，於倂合模100A，100B閉 銷時，實施預成形品1 0 2的定心’此意味著，頸導片 1 4 0具有引導預成形品1 〇 2的功能。 在頸導片1 4 0的內壁，設有向內方突出之限制構件 1 4 2。此限制構件1 4 2，於第2圖所示的狀態，是位 於頸部1 0 4的制動環1 0 4 C與輔助環1 〇 4D之間。 而此時，即能充分的在密封用凸緣1 1 2 A的上面與頸導 片1 4 0的下面之間確保漏氣。 自第2圖所示的位置，隨著吹塑嘴1 3 4的上昇’而 使搬送用插銷112上昇時，即成爲第3圖所示。如第3 圖所示，預成形品1 0 2也會與搬送用插銷1 1 2的上昇 而一體的上昇。此時，形成在預成形品1 0 2的頸部 104的制動環104C，則與一對頸導片140的各限 制構件1 4 2接觸，且在該位置，停止預成形品1 〇 2及 (請先閲讀背面之注意事項再填寫本頁) 本纸張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -14- 504450 A7 37 五、發明説明（彳2 ) 搬送用插銷1 1 2的上昇。藉著該制動環1 0 4 C與限制 構件1 4 2的接觸，就不會與密封用凸緣部1 1 2A的上 面和頸導片1 4 0的下面接觸。 此時，預成形品1 0 2的頸部1 0 4，係利用限制構 件1 4 2限制其上昇，另一方面，藉著吹塑嘴1 3 4的上 昇來推壓搬送用插銷1 1 2。結果，頸部1 0 4的開口端 面1 0 4 A就成爲密貼於一體形成在搬送用插銷1. 1 2的 密封用凸緣部1 1 2A。藉著此開口端面1 04A與密封 用凸緣部1 1 2 A的密貼，即能於此形成氣密密封。因 而，在此之後，即使透過吹塑核心模1 3 0、搬送用插銷 1 1 2，對預成形品1 0 2內導入高壓吹塑氣，還是能防 止該高壓氣漏至預成形品1 0 2的外部。且因利用限制構 件1 4 2來防止預成形品1 0 2移動至上方，所以在經過 吹塑成形的過程中，並不會解除頸部1 0 4的開口端面 1 〇 4A與密封用凸緣部1 1 2A的密貼。 爲了提高密貼此頸部1 0 4的開口端面1 0 4A的密 封用凸緣部1 1 2A的密貼性，可設置0型環等合成樹脂 構件。 在第3圖所示的狀態，最好能在頸部1 0 4的輔助環 104D與倂合模100A，100B之間，確保設計尺 寸上的間隙。一旦如此，輔助環1 〇 4 D就不會受到壓 力，即可防止變形。 此例，就有關於使得制動環1 〇 4 C與限制構件 142接觸，在其中一邊，不會在輔助環104D，作動 (請先閲讀背面之注意事項再填寫本頁}FC (Please read the precautions on the back before filling out this page) Ze, ·-Size of this paper is applicable. National Standard (CNS) A4 Specification (210X297 mm) -4-504450 A7 B7 V. Description of the Invention ( 2) (Please read the notes on the back before filling in this page) Fig. 7 is an enlarged view of a part of Fig. 5 which is the same as Fig. 6 of the above-mentioned U.S. invention, and is a partially enlarged view of Fig. 5 after the blowing nozzle 90 shown in Fig. 5 is raised. It should be noted that in Figs. 5 to 7, there are symbols not shown in the following description, but they are not necessary for the purpose of this application, and their descriptions are omitted. In Fig. 5, the clamping molds 4 1 and 4 2 are respectively fixed on the clamping plates 4 3 and 4 4 and can be opened and closed. The holding means 6 0 has a main shaft portion 6 3 supported on the template and a mandrel 64 4 corresponding to the blowing nozzle 90, which can be moved to the initial position before and after being raised (see Fig. 6). Position shown) and ascended position (position shown in Figure 7). On the groove 66 formed in the mandrel 64, an O-ring member 68 is attached. Explain this ◦ The ring member 6 8 is inserted into the mandrel 6 4 to compress the preform (parison) 6 1, and the preform 6 1 is held on the mandrel 6 4 during transportation, positioning and mold clamping. Role. The split molds 4 1 and 4 2 are provided with positioning means 7 6 and 7 6 for forming a holding flange 7 2. In the state before the blow nozzle 90 is raised, as shown in Fig. 6, a gap is formed between the lower surface 81 of the positioning means 76 and the opposite surface 80 of the mandrel 64 opposed thereto. Once the blowing nozzle 90 is raised, as shown in Fig. 7, the main shaft portion 63 and the mandrel 64 are raised, contacting the two surfaces 80 and 81 described above. At this time, the flange 5 of the preform (parison) 6 1 is brought closer to the holding flange 7 2 of the positioning means 7 6. Although two flanges 7 2 and 7 5 are seen in contact in FIG. 7, in the above-mentioned American invention, it is explained that there is a gap of 0. 0 0 8 inches (refer to the 28th row to the 6th column). This paper size applies to the Chinese National Standard (CNS) A4 specification (210X297 mm) -5-504450 A7 _______B7__ V. Description of the invention (3) 3 7 lines). (Please read the precautions on the back before filling in this page) In addition, it will be explained that the flange 7 5 of the preform 6 1 will approach the retaining flange 7 2 of the positioning means 7 6 and the neck of the preform 6 1 The part will be deformed to improve the sealing effect of the O-ring member 68 (refer to rows 3.7 to 40 in column 6). According to the structure of the aforementioned American invention, the following problems arise. First, the air-tight seal during the blow molding process is to achieve a close contact between the O-ring member 68 and the inner wall of the preform 61. Obviously, the existence of this indispensable 0-ring member 68 is difficult for the mandrel 64 to be inserted into the preform 6 1, and it is difficult to detach the blow-molded container from the mandrel 6 4. In particular, when the cycle time of the blow molding is accelerated and the throughput is increased, the time loss required for inserting and removing the molded product relative to the mandrel 64 is ignored. In addition, the O-ring member 68 is deteriorated due to repeated insertion and removal of the molded product with respect to the mandrel, and it becomes a highly replaceable consumable, and it is extremely difficult to maintain and manage the replacement period. Ozozil- ^ "said 逄 inch 4 5 Xiao labor force kettle 卬 a made--—ι Even if the 0-ring member 68 is in a deteriorated state and blow molding is performed, not only air leakage but also Poor molding can result in extremely dangerous conditions where high-pressure gas leaks to the outside. In this example, high-pressure gas leaking from the 0-ring member 68 is introduced between the neck of the preform 21 shown in Fig. 7 and the positioning means. At this time, if there is a gap between the flange 7 5 of the preform 61 shown in FIG. 7 and the holding flange 7 2 of the positioning means 76, the high pressure gas leaked will cause the The preform is pushed up. With this, if the paper size of the preform i applies the Chinese National Standard (CNS) A4 specification (210X297 mm) c-'~ 504450 A7 _ B7 21-_' _ '11 --- 5. Description of the invention (4) (Please read the precautions on the back before filling in this page) 6 1 The open end face of the neck (the end face of the preform 6 1 shown in Figure 7), and the horizontal surface 8 protruding from the mandrel 6 4 The gap between 0 will expand, which will further promote the leakage of high pressure gas. [Important points of the invention] Accordingly, an object of the present invention is to provide a blow molding apparatus and a blow molding method capable of surely hermetically sealing a formed article during blow molding. Another object of the present invention is to provide a sealing member such as an O-ring member that is not attached to a transport pin, and the molded product can be easily inserted and removed from the transport pin, and does not require the consumption of an airtight seal. Products and blow molding devices and methods that can be easily maintained. Yet another object of the present invention is to provide a place where the trunk portion of a preform is heated before the blow molding process, which can still prevent deformation and air leakage in areas affected by heat due to the heating process. Blow molding device and method. The present invention is directed to a conveying member that supports a neck having an open end surface and a restricted member and a preform having a trunk portion connected thereto, and a retractable mold that can be opened and closed, and will be supported in The pre-formed product of the conveying member is blow-molded to form a container, a blow mold groove, and an enclosing member that surrounds the neck of the pre-formed product when the mold is locked, and after the mold is locked, Move towards the aforementioned conveying member, and the size of this paper is in accordance with the Chinese National Standard (CNS) A4 specification (210X297 mm) 504450 A7 B7 V. Description of the invention (5) Through the aforementioned conveying member, blow molding fluid is introduced into the preform. The blow-molding device of a blow-molding nozzle is characterized in that: the conveying member includes: a transfer pin that guides the blow-molding fluid from the blow-molding nozzle to the inside of the pre-form, and supports the pre-form. The transporting pin of the product is a transporting member main body that is movably supported along the axial direction of the preform; the transporting pin is a package. It includes: a sealing flange inserted into the neck portion of the preform, introducing a hollow shaft portion of the blow molding fluid, and the opening end surface contacting the neck portion to seal the opening end surface in an airtight manner; The surrounding member includes the restricted member that abuts the neck portion before the surrounding member comes into contact with the sealing flange portion when the transport pin is moved as the preform is moved. A restricting member is provided to restrict the movement of the preform and the transport pin. In addition, the method of the present invention is a blow molding method which is most suitable for the blow molding apparatus of the present invention, and is completed. According to the apparatus and method of the present invention, the periphery of the neck of the preform is surrounded by a surrounding member through a closed blow mold cavity. Then, as the blow nozzle is moved, the pre-formed product transfer pin and the sealing flange portion are moved. The restricted member formed on the neck of the preform is brought into contact with the restricted member formed on the surrounding member. This way, you can limit the advance (please read the precautions on the back before filling out this page), 0 bound and bound paper sizes are applicable to China National Standard (CNS) A4 specifications (210X297 mm) -8- 504450 Ministry of Economic Affairs 眢Anthony Choi 4¾ ® 4 co-operation cost fi printing A7 ___ B7 V. Description of the invention (6) The movement of the molded product and the pre-formed product to support the latch and seal flange. Thereby, the opening end surface of the neck portion of the preform is closely adhered to the sealing flange portion, thereby forming an air-tight seal. Therefore, it is possible to reliably prevent the blow molding fluid introduced into the preform from leaking to the outside during subsequent blow molding. To form such a hermetic seal, it is not necessary to attach a sealing member such as an O-ring member to the transport pin. Therefore, it is possible to carry out the operation of inserting the preform into the container with the transport pin 'very smoothly, and separating the blow pin from the transport pin to form a container. Even without consumables such as sealing members, maintenance becomes easy. The apparatus of the present invention further includes a heating device for heating the trunk portion of the preform that is supported by the conveying member; the neck portion of the preform has a position at a position away from a boundary position between the neck portion and the trunk portion. Restricted member; It is preferable that the restricting member of the surrounding member abuts the restricted member that reduces thermal influence from the heating device. In this case, the restricted member that is a preform that functions as a brake is formed at a position where it is difficult to be affected by the heat of the heating device. Even when abutting against the restricting member, pressure is applied to the restricted member, which can still be reduced. Unexpected deformation of the restrained member to ensure its function as a brake. In addition, the brake function of the restricted member can be ensured, and the airtight seal formed by the opening end surface of the neck portion and the sealing flange portion can be surely ensured. This constrained member can serve as a flange that is usually provided on the neck. The device of the present invention is formed on the neck of the preform: (Please read the precautions on the back before filling this page)-The size of the binding and binding paper is applicable to the Chinese National Standard (CNS) 8% 4% ( 210X297 mm) -9- 504450 A7 B7 V. Description of the invention (7) The first flange disposed near the trunk portion and the second flange located closer to the open end surface side than the first flange; It is preferable that the restricting member that surrounds the member abuts the second flange. • Once this happens, the second flange has less braking function than the first flange due to the heat of the heating device. In this example, when an auxiliary ring and a brake ring are formed on the neck portion of the blow-molded container, the auxiliary ring corresponds to the first flange, and the brake ring corresponds to the second flange. Therefore, in this case, the existing flange can be used as a brake. In the device according to the present invention, it is preferable that a gap in a design dimension can be ensured between the first flange and the surrounding member when the restricting member is in contact with the second flange. By making such a design size, the brake function of the second flange can be surely ensured. In the device of the present invention, it is preferable that a gap in a design dimension can be ensured between the hollow shaft portion of the transport pin and an inner surface of the neck portion. This structure is not the same as the structure of the American invention described in the conventional technology, and it is positively defined that the inner surface of the neck is hermetically sealed. Thereby, the molded product can smoothly insert and remove the transfer pin. [Explanation of the best embodiment of the present invention] Hereinafter, the embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a sectional view of a blow-molded portion of a blow-molding apparatus according to the present invention. In Figure 1, the blow-molding section is equipped with an opening-closing-pack-(Please read the precautions on the back before filling this page) The size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (210X29 * 7mm) -10- 504450 A7 _ B7 V. Description of the invention (8). A pair of blow mold grooves 100 composed of 100 A, 100 B. Fig. 1 shows the closed state of the preforms 102 in a pair of closed molds 100A and 100B. The preform 102 is supported by the conveyance member 110, and is carried into this blow molding section. At the time of this loading, the clamped molds 1 0 A, 1 0 B are opened, and after the preforms 1 2 are loaded, the driven clamped molds 1 0 A, 100 B are locked. The preform 10 2 has a neck portion 104 and a trunk portion 106 connecting the neck portion. The neck 104 is formed with an open end surface 104A, a threaded portion 104 B, a brake ring 104 C, and an auxiliary ring 104 D. The auxiliary ring 10 0 D is a first flange, and the brake ring 104 C is a second flange. As shown in FIG. 1, the conveying member 1 10 includes a conveying pin 1 12 2 and a first cylinder 1 14 and a second cylinder 1 1 6. The transport pins 1 1 2 have a sealing flange portion 1 1 2A, and first and second hollow shafts 1 1 2 B and 1 1 2 C protruding from the upper and lower sides, respectively. The first hollow shaft 1 1 2B of the transport pin 1 1 2 is inserted into the neck portion 1 0 4 of the preform 10 2 and is set upside down on the sealing flange portion 1 1 2 A. Preforms 102 are supported. Sealing members such as o-ring members are not attached to the first hollow shaft 1 12B of the transport pin 1 1 2 here. The gap between the first hollow shaft 1 1 2B and the inner wall of the neck 104 can be secured to the designed size by not tilting the pre-finished product 102 by a slight amount. The second hollow shaft 1 1 2B is inserted into the first cylinder body 1 1 4. (Please read the precautions on the back before filling out this page} This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) ) -11-504450 A7 __ _ B7 _ V. Description of the invention (9) The position of the lower end of the first cylinder 1 1 4 has a c-ring member 1 1 2D for preventing falling off. The first cylinder 1 1 4 The sprocket 118 is fixed to the first cylinder 1 1 4 and can be slidably supported in the axial direction by rotating the transport pins 1 1 2. The first cylinder 114 is rotatably rotated through the bearing 119 It is supported inside the second cylinder 116. The second cylinder 116 has a driven piece 1 2 2 which is fixed to the conveying chain 1 2 0 and is driven to rotate with a guide rail 1 2 4 having a cam function. Connected to the cam follower 1 2 6. The first and second cylinders 1 1 4 and 1 1 6 constitute the transporting pin 1 1 2 which is supported by the conveying member main body of the axial direction. The conveying chain 1 2 0 is stretched in the blow molding device along the conveying path of the circulating conveying conveying member 1 10 and intermittently along the conveying path. The conveying conveying member 1 1 0. The conveying chain 120 is surrounded by the chain rail 128. In the blow molding section, a blow core 1 130 is arranged below the stop position of the conveying member 1 1 0. This blow molding The core mold 130 is a blow molding fixing table 2 2 arranged on the machine table 200 of the blow molding apparatus, and is fixed to the machine mold 200. This blow molding core mold 130 series It has a blow core body part 1 3 2 fixed to the blow molding part fixing table 2 2 2 and a blow nozzle 1 3 4 that can be raised and lowered relative to the blow core body part. In the blow core body part 134 An extension rod 135 is arranged inside. This extension rod 135 is driven by a driving device not shown in the figure during blow molding and is inserted into the blow molding (please read the precautions on the back before filling this page) Applicable to Chinese National Standards (CNS) M specifications (210 × 297 mm) -12 · 504450 Wisdom of the Ministry of Economic Affairs 4¾ Xiaogong Consumer Cooperative Printing A 7 _ B7_ V. Description of the invention (10) Mouth 1 3 4 12, and the preform 1 102 is driven by the longitudinal axis extension. The blow molded core body portion 1 3 2 is connected with a high Compressed air pipe 1 3 6. The blow nozzle 1 3 4 is connected to the first pipe 1 38A on the upper side and the second pipe 1 38B on the lower side. The first figure shows the introduction of air into the second pipe 1 3 8 B The state of the blow nozzle 1 3 4 is at the lowest point. On the other hand, air is introduced into the first pipe 1 3 8A to raise the blow nozzle 1 3 4. A pad 圏 1 3 4 A is arranged at the upper end of the blow nozzle 1 3 4 and is blown. When the nozzle 1 3 4 rises, the gasket 1 3 4A is closely attached to the lower end of the transport pin 1 1 2 to communicate with the blow. Plastic mouth 1 34 and transport pins 1 1 2. The blow nozzle 1 34 is further raised, and the transfer pin 1 1 2 can be pushed upward to move it. Next, a description will be given of a structure in which the inside of the preform 102 is hermetically sealed by pushing the transport pin 1 12 upward with the blow nozzle 1 3 4. First, as shown in FIG. 1, a pair of closing molds 100A and 100B are interlocked with each other to serve as a surrounding member for surrounding the neck 1104 of the preform 1102. A pair of neck guides 140, 140. The pair of neck guides 140, 140 can also be directly fixed to the clamping molds 100A, 100B, or as disclosed in JP-A-9-2 4 5 4 0, which can be horizontally slidably supported on the clamping molds. The pair of neck guides 140 and 140 of 100A and 100B may be urged toward each other by a spring. The key lies in the pair of neck guides 140 and 140. When the molds 100A and 100B are locked, as long as they are arranged around the neck 1 0 4 of the preform 1 102, please read the precautions on the back first. (Fill in this page again.) This paper size is in accordance with Chinese National Standard (CNS) A4 Washing (210X29 * 7mm) -13- 504450 Ministry of Economic Affairs 4 ^ 8 Printing and Printing Co., Ltd. A7 B7 V. Description of Invention (11) The support structure can be left alone. The neck guide r 4 0 will be described in detail with reference to FIGS. 2 and 3. Fig. 2 shows the support structure of the preform 102 before the transfer pin 112 is raised, and Fig. 3 shows the support structure of the preform 102 after the transfer pin 112 is raised. As shown in Fig. 2, before the transport pins 1 12 are raised, a part of the inner wall of the neck guide 140 is designed to be in contact with the outer wall of any part of the neck 104. Where the inner wall of the neck conductor 140 is in contact, a part or all of the threaded portion 104B, the brake ring 104C, and the auxiliary ring 104D can be made. A part of this neck guide 1 40 is a part that touches the outer wall of the neck 104. When the closing pins 100A and 100B are closed, the centering of the preform 1 102 is performed. This means that the neck The guide piece 140 has a function of guiding the preform 1 02. The inner wall of the neck guide 140 is provided with a restricting member 14 2 protruding inward. The restricting member 1 42 is in a state shown in FIG. 2 between the brake ring 104 C and the auxiliary ring 104 D of the neck 104. At this time, air leakage can be sufficiently ensured between the upper surface of the sealing flange 1 12 A and the lower surface of the neck guide 140. When the transfer pin 112 is raised from the position shown in Fig. 2 as the blow nozzle 134 rises, it becomes as shown in Fig. 3. As shown in Fig. 3, the preform 10 2 also rises integrally with the rise of the transport pins 1 12. At this time, the brake ring 104C formed on the neck 104 of the preform 102 is brought into contact with each of the restricting members 142 of the pair of neck guides 140, and at this position, the preform 102 and the stop are stopped. (Please read the precautions on the back before filling out this page) This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) -14- 504450 A7 37 V. Description of the invention (彳 2) Transport pin 1 1 2 rise. The contact between the brake ring 1 0 4 C and the restricting member 14 2 prevents the upper surface of the sealing flange portion 1 12A and the lower surface of the neck guide 1 40 from coming into contact with each other. At this time, the neck portion 104 of the preform 10 2 is restricted by the restricting member 14 2. On the other hand, the transport pin 1 1 2 is pushed by the rise of the blow nozzle 1 3 4. . As a result, the opening end surface 10 4 A of the neck portion 104 becomes a sealing flange portion 1 1 2A which is closely adhered and integrally formed with the transport pin 1. 1 2. An air-tight seal can be formed here by the close contact between the opening end surface 104A and the sealing flange portion 1 12A. Therefore, after this, even if a high-pressure blow molding gas is introduced into the pre-formed product 102 through the blow mold core 130 and the transport pin 1 12, the high-pressure air can be prevented from leaking to the pre-formed product 10 2 outside. In addition, the restricting member 1 2 2 is used to prevent the preform 10 2 from moving upward. Therefore, during the blow molding process, the opening end surface 1 0 4A of the neck 1 0 4 and the sealing flange are not released. Part 1 1 2A for close adhesion. A synthetic resin member such as an O-ring may be provided in order to improve the adhesion of the sealing flange portion 1 12A for sealing the open end surface 104A of the neck 104. In the state shown in Fig. 3, it is preferable to ensure a gap in the design size between the auxiliary ring 104D of the neck 104 and the clamping molds 100A and 100B. Once this is done, the auxiliary ring 104D will not be stressed and deformation will be prevented. In this example, the brake ring 1 0 4 C is in contact with the restricting member 142, and on one side, it will not act on the auxiliary ring 104D. (Please read the precautions on the back before filling this page}
本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 504450 Λ7 B7 _五、發明説明（13 ) 過度的壓力之理由，也參照第4圖做說明。 第4圖係表示針對第1圖所示的吹塑成形部，而被配 置在搬送構件1 1 〇的搬送方向前段之加熱部。於第4圖 中，在此加熱部隔著預成形品1 〇 2的搬送路徑的一邊配 置有加熱源，例如5根紅外線加熱器1 5 0 A至 150E，在其另一邊配置有反射鏡15 2。而在此加熱 部配置有旋轉驅動鏈條1 5 6，與搬送構件1 1 〇的鏈輪 1 1 8嚙合。因而，此旋轉驅動鏈條1 5 6的驅動力，會 透過鏈輪1 1 8傳達到搬送用插銷1 1 2，使預成形品 1 0 2自轉。 紅外線加熱器1 5 0 A至1 5 0 E，係相對而配置在 預成形品1 0 2的軀幹部1 0 6的各高度位置，預成形品 10 2的軀幹部10 6則加熱成適於吹塑成形的溫度。尤 其預成形品1 0 2的軀幹部1 06之中，在頸部1 04附 近的區域，需要特別容易延伸，所以最下段的紅外線加熱 器 1 5 0E，是被配置在接近頸部104的位置。 反之此構造，在不需要延伸頸部1 0 4上，以防止熱 變形等觀點來看，須要隔熱。因此，如第4圖所示，供頸 部1 0 4隔熱用的反射板1 5 4是被設在加熱部。 此種，即使將頸部1 0 4加以隔熱，還是無法以物理 式將存在於接近頸部1 0 4與軀幹部1 〇 6之間的邊界位 置的輔助環1 0 4D完全隔熱。因而’輔助環1 0 4D仍 保持這之後的吹塑成形時程度的熱量。當此點在預成形品 本纸張尺度適用中國國家標隼（CNS ) A4規格（210X297公ill - 16 - (請先閲讀背面之注意事項再填寫本頁) 504450 A7 B7 五、發明説明（14 ) (請先閲讀背面之注意事項再填寫本頁) 1 0 2在加熱部內時，制動環1 〇 4 C會比輔助環 1 0 4 D更爲離開熱源，且即使利用輔助環1 〇 4 D，還 是會保存在隔熱的位置。 根據以上的理由，，制動環104 C於吹塑成形時的 保有熱量較輔助環1 0 4 D少，以致難以產生變形。 於是乎，如上所述，與限制構件1 4 2接觸的最好是 制動環1 0 4 C，再好則是連輔助環1 〇 4D也不接觸倂 合模1 0 0 A，1 0 0 B，以不產生非預期的變形爲佳。 再者，本發明並未限定在上述實施例，只要是在本發 明主旨範圍內均可做種種變形實施。 例如，關於本發明中，作爲具有與限制構件接觸的制 動器功能的被限制構件，並不限定爲形成在頸部的制動 環，只要是能與限制構件抵接的形狀都可，在吹塑成形 前，實施加熱工程的場合，最好被限制構件是形成在較爲 離開軀幹部的位置。 〔圖面之簡單說明〕 經濟部智慧財4^7a:工消費合汴社印製 第1圖係適用本發明之吹塑成形裝置的吹塑成形部之 槪略斷面圖。 第2圖係放大表示第1圖所示的吹塑嘴上昇前的預成 形品的支持構造之放大斷面圖。 第3圖係放大表示第1圖所示的吹塑嘴上昇後的預成 形品的支撐構造之放大斷面圖。 第4圖係設在第1圖所示的吹塑成形裝置的加熱部之 -17- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 504450 A7 B7五、發明説明（15) 槪略說明圖。 第5圖係表示吹塑成形部的習知例之槪略斷面圖。 第6圖係表示第5圖的習知例的吹塑嘴上昇前的預成 形品的支撐構造之放大斷面圖。 . 第7圖係表示第5圖的習知例的吹塑嘴上昇後的預成 形品的支撐構造之放大斷面圖。 符號之說明 0 0 0 0 A 0 2 0 4 0 4 A 0 4 B 0 4 C 0 4 D 0 6 10 1 2 A 14, 吹型模槽 1 0 0 B 倂合模 預成形品 頸部 開口端面 螺紋部 制動環（被限制構件，第2凸緣） 輔助環（第1凸緣） 軀幹部 搬送構件 搬送用插銷 密封用凸緣部 搬送構件本體 11 13 4 吹塑嘴 14 0 頸導片（包圍構件） 14 2 限制構件 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -18 - (請先閲讀背面之注意事項再填寫本頁)This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 504450 Λ7 B7 _V. Explanation of the invention (13) The reason for excessive pressure is also explained with reference to Figure 4. Fig. 4 is a view showing a heating portion arranged in front of the conveying member 1 10 in the blow-molding portion shown in Fig. 1. In FIG. 4, a heating source such as five infrared heaters 150 A to 150E is disposed on one side of the heating section across the conveyance path of the preform 1 02, and a mirror 15 is disposed on the other side. 2. On the other hand, a rotary driving chain 1 56 is arranged in the heating portion, and meshes with a sprocket 1 1 8 of the conveying member 1 10. Therefore, the driving force of the rotary drive chain 156 is transmitted to the transport pins 1 12 through the sprocket 1 1 8 to cause the preform 10 2 to rotate. Infrared heaters 150 A to 150 E are oppositely arranged at the height positions of the trunk part 10 of the preform 10 2 and the trunk part 10 6 of the preform 10 2 are heated to suit Blow molding temperature. In particular, in the trunk part 106 of the preformed product 10, the area near the neck 104 needs to be particularly easy to extend. Therefore, the infrared heater 1 50E at the lower stage is arranged near the neck 104. . Conversely, this structure requires heat insulation from the viewpoint of not needing to extend the neck 104 to prevent thermal deformation. Therefore, as shown in Fig. 4, the reflecting plate 154 for heat insulation of the neck portion 104 is provided in the heating portion. In this way, even if the neck 104 is thermally insulated, the auxiliary ring 104d existing near the boundary between the neck 104 and the trunk 106 cannot be physically insulated. Therefore, the 'auxiliary ring 10 4D' retains the heat at the time of the subsequent blow molding. At this point, the Chinese paper standard (CNS) A4 size (210X297 ill-16-(Please read the precautions on the back before filling out this page) is applicable to the paper size of the preform. 504450 A7 B7 V. Description of the invention (14 ) (Please read the precautions on the back before filling in this page) 1 0 2 When in the heating section, the brake ring 1 0 4 C will leave the heat source more than the auxiliary ring 1 0 4 D, and even if the auxiliary ring 1 0 4 D is used According to the above reasons, the retaining heat of the brake ring 104 C during blow molding is less than that of the auxiliary ring 104 D, so that it is difficult to deform. Therefore, as described above, and The limiting member 1 4 2 is best contacted by the brake ring 1 0 4 C, and even better, even the auxiliary ring 1 04D does not contact the clamping mold 1 0 0 A, 1 0 0 B, so as not to cause unexpected deformation. In addition, the present invention is not limited to the above-mentioned embodiments, and various modifications can be implemented as long as it is within the scope of the present invention. For example, in the present invention, the brake function as a contact with a restricting member is restricted. The member is not limited to a brake ring formed on the neck As long as it can be in contact with the restricting member, it is better to form the restricted member at a position away from the trunk when heating is performed before blow molding. [Simplified description of the drawing] Economy Ministry of Intellectual Property 4 ^ 7a: Printed by Industry and Consumer Press, Figure 1 is a schematic cross-sectional view of a blow-molded part to which the blow molding apparatus of the present invention is applied. Figure 2 is an enlarged view of the figure shown in Figure 1. The enlarged sectional view of the support structure of the preform before the blow nozzle is raised. FIG. 3 is an enlarged sectional view of the support structure of the preform after the blow nozzle as shown in FIG. 1 is enlarged. Section 4 The figure shows the -17 of the heating part of the blow molding device shown in Figure 1. The paper size applies to the Chinese National Standard (CNS) A4 (210X297 mm) 504450 A7 B7 V. Description of the invention (15) Fig. 5 is a schematic cross-sectional view showing a conventional example of a blow molding section. Fig. 6 is an enlarged view showing a support structure of a preform before the blowing nozzle of the conventional example shown in Fig. 5 is raised. Sectional view .. Fig. 7 shows the preform after the blowing nozzle of the conventional example shown in Fig. 5 is raised. Enlarged sectional view of the supporting structure of the shape. Explanation of symbols 0 0 0 0 A 0 2 0 4 0 4 A 0 4 B 0 4 C 0 4 D 0 6 10 1 2 A 14, blow mold slot 1 0 0 B Neck opening end face screw part brake ring (restricted member, second flange) auxiliary ring (first flange) of the pre-molded part prefabricated part flange of the trunk part conveying member conveying pin sealing flange body conveying member body 11 13 4 Blow-moulding nozzle 14 0 Neck guide (enclosing member) 14 2 Restricted member This paper size is applicable to Chinese National Standard (CNS) A4 specification (210X297 mm) -18-(Please read the precautions on the back before filling this page)