TWI815471B - Injection blow molding method - Google Patents
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- 238000010102 injection blow moulding Methods 0.000 title claims abstract description 13
- 230000003068 static effect Effects 0.000 claims abstract description 116
- 239000000463 material Substances 0.000 claims abstract description 47
- 238000002347 injection Methods 0.000 claims description 69
- 239000007924 injection Substances 0.000 claims description 69
- 238000007664 blowing Methods 0.000 claims description 25
- 230000009471 action Effects 0.000 claims description 9
- 238000000465 moulding Methods 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 238000000071 blow moulding Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
本發明係在提供一種射吹成型方法，其步驟如下：(a)動模位於靜模之下位，(b)一次關模，(c)動模位於靜模下位之熱胚料射出及吹氣，(d)動模位於靜模下位之開模及脫模，(e)動模位於靜模之上位，(f)二次關模，(g)動模位於靜模上位之熱胚料射出及吹氣，(h)動模位於靜模上位之開模及脫模，(i)將位於靜模上位脫模完成後之動模向下復位移動至靜模之下位，並重複步驟(a)~(h)之動作，如此，即為射吹成型方法。 The present invention provides an injection blow molding method. The steps are as follows: (a) the movable mold is located below the static mold, (b) the mold is closed once, (c) the hot blank material is injected and blown with the movable mold located below the static mold. , (d) Mold opening and demoulding when the movable mold is at the lower position of the static mold, (e) The movable mold is at the upper position of the static mold, (f) Secondary closing of the mold, (g) Hot blank material is injected when the movable mold is at the upper position of the static mold and blow air, (h) open and demould the movable mold in the upper position of the static mold, (i) reset and move the movable mold in the upper position of the static mold downward to the lower position of the static mold, and repeat step (a) )~(h), this is the injection blow molding method.
Description
本發明係有關於一種射吹成型方法，特別係指一種利用動模對應靜模呈上、下位移作動，可縮小射吹成型模具之整體體積，降低模具成本，提高產品之生產速度。 The present invention relates to an injection blow molding method, particularly a method that uses a movable mold to move up and down in response to a static mold, thereby reducing the overall volume of the injection blow molding mold, reducing mold costs, and increasing product production speed.
按，一般中空狀之容器產品在製造時，大都係將胚料進行加熱熔融軟化為熱胚料，將該熱胚料射出於成型模具中，再透過高壓之熱空氣將此熱胚料吹脹成模具內壁之形狀，而習知中空成型機之射出與吹氣之模具係為分開設置，故二組模具組裝於機台上所佔之空間極大，故機台相對較大，且產品之生產速度較為緩慢，若要提升生產速度則需購置多台中空成型機，其機台之擺置空間大，且購置成本高。 According to the general manufacturing process of hollow container products, the blank is heated, melted and softened into a hot blank. The hot blank is injected into the mold, and then the hot blank is inflated by high-pressure hot air. into the shape of the inner wall of the mold. However, in conventional hollow molding machines, the injection and blowing molds are installed separately. Therefore, the two sets of molds assembled on the machine take up a very large space. Therefore, the machine is relatively large, and the product is The production speed is relatively slow. If you want to increase the production speed, you need to purchase multiple blow molding machines. The installation space of the machines is large and the purchase cost is high.
本發明之主要目的，係在提供一種射吹成型方法，可有效解決習知中空成型機在製造產品上所存在之缺點。 The main purpose of the present invention is to provide an injection blow molding method that can effectively solve the shortcomings of conventional hollow molding machines in manufacturing products.
本發明之射吹成型模具組，主要係設有一靜模及一動模，該動模係對應該靜模呈上、下位移作動，該靜模上設有一射出模穴、一下成型模穴及一上成型模穴，該靜模上設有射出口連通於該射出模穴，該動模上設有一上模仁及一下模仁，該動模上設有二吹氣口分別連通於該上模仁與該下模仁，該動模之上模仁與下模仁係分別對應於該靜模之射出模穴與下成型模穴或該靜模之上成型模穴與射出模穴。 The injection blow molding mold set of the present invention is mainly provided with a static mold and a movable mold. The movable mold moves up and down corresponding to the static mold. The static mold is provided with an injection mold cavity, a lower mold cavity and a lower mold cavity. The upper molding mold cavity is provided with an injection port connected to the injection mold cavity. The movable mold is provided with an upper mold core and a lower mold core. The movable mold is provided with two blowing ports respectively connected to the upper mold core. With the lower mold core, the upper mold core and the lower mold core of the movable mold respectively correspond to the injection mold cavity and the lower mold cavity of the static mold or the upper mold cavity and the injection mold cavity of the static mold.
本發明之射吹成型方法，其步驟如下： (a)動模位於靜模之下位：動模之上模仁對應於靜模之射出模穴、動模之下模仁對應於靜模之下成型模穴；(b)一次關模：該動模移動靠合於該靜模上，使該動模之上模仁設入於該靜模之射出模穴內、該動模之下模仁設入於該靜模之下成型模穴內，形成關模狀態，而該射出模穴與該上模仁之間形成有注料空間；(c)動模位於靜模下位之熱胚料射出及吹氣：將加熱後熔融軟化之熱胚料由該靜模之射出口射出於該射出模穴中之注料空間，熱胚料則包覆於該動模之上模仁上，而該動模之下模仁的吹氣口則向該靜模之下成型模穴內進行吹氣成型，當該靜模於初次射出熱胚料時，因該動模之下模仁上尚未包覆有熱胚料，故吹氣口之吹氣為空吹，而當該動模之下模仁上包覆有熱胚料時則可於該下成型模穴中將該熱胚料進行吹氣成型；(d)動模位於靜模下位之下位開模及脫模：該動模復位移動脫離該靜模形成開模狀態，包覆於該動模之上模仁上的熱胚料則隨該動模之上模仁脫離該射出模穴，當該靜模於初次射出熱胚料時，因該動模之下模仁上尚未吹製有成品，則無成品可脫模，而當該下模仁上包覆有熱胚料於該下成型模穴中吹製有成品時，該成品則隨該下模仁脫離該下成型模穴，再將該下模仁上之成品取下，即完成該動模之下位脫模動作；(e)動模位於靜模之上位：該動模於該靜模之下位脫模後則向上移動，使該動模之上模仁對應於該靜模之上成型模穴、該動模之下模仁則對應於該靜模之射出模穴；(f)二次關模：該動模移動靠合於該靜模上，使該動模之上模仁設入於該靜模之上成型模穴內、該動模之下模仁設入於該靜模之射出模穴內，形成關模狀態，而該射出模穴與該下模仁之間形成有注料空間，另包覆於該上模仁之熱胚料則隨該上模仁設入於該靜模之上成型模穴內； (g)動模位於靜模上位之熱胚料射出及吹氣：將加熱後熔融軟化之熱胚料由該靜模之射出口射出於該射出模穴中之注料空間，熱胚料則包覆於該動模之下模仁上，而該動模之上模仁的吹氣口則向該靜模之上成型模穴內進行吹氣，將包覆於該上模仁上之熱胚料於該上成型模穴中吹氣成型；(h)動模位於靜模上位之上位開模及脫模：該動模復位移動脫離該靜模形成開模狀態，包覆於該動模之下模仁上的熱胚料則隨該動模之下模仁脫離該射出模穴，而於該上成型模穴內吹製成型之成品則隨該上模仁脫離該上成型模穴，再將該上模仁上之成品取下，即完成上位脫模動作；(i)將上位脫模完成之該動模向下復位移動至該靜模之下位，並重複前述步驟(a)~(h)之動作。 The steps of the injection blow molding method of the present invention are as follows: (a) The movable mold is located below the static mold: the mold core above the movable mold corresponds to the injection mold cavity of the static mold, and the mold core under the movable mold corresponds to the molding cavity under the static mold; (b) One-time mold closing: the The movable mold moves close to the static mold, so that the upper mold core of the movable mold is placed in the injection mold cavity of the static mold, and the lower mold core of the movable mold is placed in the molding cavity below the static mold. , forming a closed mold state, and an injection space is formed between the injection mold cavity and the upper mold core; (c) the movable mold is located under the static mold to inject and blow the hot blank material: the heated, melted and softened hot blank material The injection port of the static mold is ejected from the injection space in the injection mold cavity. The hot blank material is coated on the upper mold core of the movable mold, and the blowing port of the lower mold core of the movable mold is directed toward the static mold. Blow molding is carried out in the mold cavity under the mold. When the static mold injects the hot blank for the first time, the mold core under the movable mold has not yet been covered with hot blank, so the air blowing from the blow port is empty blowing. , and when the mold core under the movable mold is covered with hot blank material, the hot blank material can be blown into the lower forming mold cavity; (d) the movable mold is located at the lower position of the static mold to open the mold And demoulding: the movable mold resets and moves away from the static mold to form an open mold state, and the hot blank covering the mold core on the movable mold leaves the injection mold cavity along with the mold core on the movable mold. When the static mold injects the hot blank material for the first time, because the finished product has not yet been blown on the mold core under the movable mold, there is no finished product to eject. When the lower mold core is covered with hot blank material, the lower forming mold When a finished product is blown into the cavity, the finished product will be separated from the lower mold cavity along with the lower mold core, and then the finished product on the lower mold core will be removed, thereby completing the lower demoulding action of the movable mold; (e) Moving The mold is located above the static mold: the movable mold moves upward after being demoulded below the static mold, so that the mold core above the movable mold corresponds to the mold cavity above the static mold, and the mold core below the movable mold Corresponding to the injection mold cavity of the static mold; (f) Secondary mold closing: the movable mold moves close to the static mold, so that the mold core on the movable mold is set into the mold cavity on the static mold . The lower mold core of the movable mold is placed in the injection mold cavity of the static mold to form a closed mold state, and an injection space is formed between the injection mold cavity and the lower mold core, and is covered with the upper mold core. The hot blank material is placed into the mold cavity on the static mold along with the upper mold core; (g) Injection and blowing of hot blank material with the movable mold located above the static mold: The heated, melted and softened hot blank material is injected from the injection port of the static mold into the injection space in the injection mold cavity, and the hot blank material is It is coated on the lower mold core of the movable mold, and the blowing port of the upper mold core of the movable mold blows air into the mold cavity above the static mold, and the hot embryo coated on the upper mold core is The material is blown into the upper mold cavity to form; (h) the movable mold is located above the static mold for mold opening and demoulding: the movable mold resets and moves away from the static mold to form an open mold state, covering the movable mold The hot blank material on the lower mold core will leave the injection mold cavity along with the lower mold core of the movable mold, and the finished product blown in the upper mold cavity will leave the upper mold cavity along with the upper mold core. Then remove the finished product from the upper mold core to complete the upper demoulding action; (i) Reset the movable mold after the upper demoulding is completed and move it downward to the lower position of the static mold, and repeat the aforementioned steps (a)~ (h) action.
本發明之射吹成型方法，其優點係在：可縮小整體模具組之體積，降低模具製造成本，並縮減機台之擺置空間，提升產品生產速度及降低產品製造成本。 The advantage of the injection blow molding method of the present invention is that it can reduce the volume of the entire mold set, reduce mold manufacturing costs, reduce the placement space of the machine, increase product production speed, and reduce product manufacturing costs.
1:靜模 1: static mold
10:射出模穴 10: Injection mold cavity
11:下成型模穴 11: Lower mold cavity
12:上成型模穴 12: Upper molding cavity
13:射出口 13:Ejection port
2:動模 2:Dynamic mold
21:上模仁 21: Upper mold kernel
22:下模仁 22:Lower mold kernel
23、24:吹氣口 23, 24: Blowing port
A:熱胚料 A:Hot blank material
B:成品 B:finished product
第一圖所示係為本發明實施例動模與靜模之立體分解示意圖。 The first figure is a three-dimensional exploded schematic diagram of the movable mold and the static mold according to the embodiment of the present invention.
第二圖所示係為本發明實施例動模位於靜模下位之示意圖。 The second figure is a schematic diagram of the movable mold located below the static mold according to the embodiment of the present invention.
第三圖所示係為本發明實施例動模位於靜模下位關模，初次進行射胚及吹氣之示意圖。 The third figure is a schematic diagram of the embodiment of the present invention in which the movable mold is positioned under the static mold and closed, and the embryo injection and air blowing are performed for the first time.
第四圖所示係為本發明實施例動模位於靜模下位，初次進行開模之示意圖。 The fourth figure shows the schematic diagram of the first mold opening when the movable mold is located below the static mold according to the embodiment of the present invention.
第五圖所示係為本發明實施例動模位於靜模下位關模，再次進行射胚及吹氣之示意圖。 The fifth figure shows a schematic diagram of the embodiment of the present invention in which the movable mold is located under the static mold and closed, and injection and air blowing are performed again.
第六圖所示係為本發明實施例動模位於靜模下位，進行開模、脫模之示意圖。 Figure 6 shows a schematic diagram of the embodiment of the present invention in which the movable mold is located below the static mold for mold opening and demoulding.
第七圖所示係為本發明實施例動模向上移動，位於靜模上位之示意圖。 The seventh figure shows a schematic diagram of the movable mold moving upward and located above the static mold according to the embodiment of the present invention.
第八圖所示係為本發明實施例動模位於靜模上位關模，進行射胚及吹氣之示意圖。 Figure 8 shows a schematic diagram of the embodiment of the present invention in which the movable mold is located above the static mold and is closed to perform injection and air blowing.
第九圖所示係為本發明實施例動模位於靜模上位，進行開模脫料之示意圖。 Figure 9 shows a schematic diagram of the embodiment of the present invention in which the movable mold is located above the static mold for mold opening and material removal.
有關本發明為達上述之使用目的與功效，所採用之技術手段，茲舉出較佳可行之實施例，並配合圖式所示，詳述如下：本發明之實施例，請參閱第一、二圖所示，主要係設有一靜模1及一動模2，該靜模1上設有一射出模穴10、一下成型模穴11及一上成型模穴12，該下成型模穴11與該上成型模穴12之形狀係依所欲製成之產品形狀設計，該靜模1上設有射出口13連通於該射出模穴10，該動模2上設有一上模仁21及一下模仁22，該動模2上設有二吹氣口23、24分別連通於該上模仁21與該下模仁22，該動模2之上模仁21與下模仁22係分別對應於該靜模1之射出模穴10與下成型模穴11或該靜模1之上成型模穴12與射出模穴10，該動模2對應該靜模1呈上、下移動，如此，即為一射吹成型模具組。
Regarding the technical means adopted by the present invention to achieve the above-mentioned purposes and effects, the best and feasible embodiments are enumerated and shown in the drawings, and are described in detail as follows: For the embodiments of the present invention, please refer to the first, As shown in the second figure, it is mainly provided with a static mold 1 and a
本發明利用該射吹成型模具組進行射吹成型之方法，請參閱第一~九圖所示，其步驟如下：(a)動模2位於靜模1之下位(如第一、二圖所示)：動模2之上模仁21對應於靜模1之射出模穴10、動模2之下模仁22對應於靜模1之下成型模穴11；(b)一次關模(如第三圖所示)：動模2移動靠合於靜模1上，使動模2之上模仁21設入於靜模1之射出模穴10內、動模2之下模仁22設入於靜模1之下成型模穴11內，形成關模狀態，而該射出模穴10與該上模仁21之間形成有注料空間；(c)動模2位於靜模1下位之熱胚料射出及吹氣(如第三~五圖所示)：將加熱後熔融軟化之熱胚料A由該靜模1之射出口13射出於射出模穴10中之注料空間，熱胚料A則包覆於動模2之上模仁21上，而動模2之下模仁22的吹氣口24則向靜
模1之下成型模穴11內進行吹氣成型，當靜模1於初次射出熱胚料A時，因動模2之下模仁22上尚未包覆有熱胚料A(如第三圖所示)，故吹氣口24之吹氣為空吹，而當下模仁22上包覆有熱胚料A時則可於下成型模穴11中將熱胚料A進行吹氣成型(如第五圖所示)；(d)動模2位於靜模1下位之開模及脫模(如第四~六圖所示)：動模2復位移動脫離靜模1形成開模狀態，包覆於動模2之上模仁21上的熱胚料A則隨動模2之上模仁21脫離射出模穴10，當靜模1於初次射出熱胚料A時，因動模2之下模仁22上尚未吹製有成品B(如第四圖所示)，則無成品B可脫模，而當下模仁22上包覆有熱胚料A於下成型模穴11中吹製有成品B時(如第五圖所示)，該成品B則隨動模2之下模仁22脫離靜模1之下成型模穴11，再將下模仁22上之成品B取下(如第六圖所示)，即完成動模2之下位脫模動作；(e)動模2位於靜模1之上位(如第七圖所示)：動模2於靜模1之下位脫模後則向上移動，使動模2之上模仁21對應於靜模1之上成型模穴12、動模2之下模仁22則對應於靜模1之射出模穴10；(f)二次關模(如第八圖所示)：動模2移動靠合於靜模1上，使動模2之上模仁21設入於靜模1之上成型模穴12內、動模2之下模仁22設入於靜模1之射出模穴10內，形成關模狀態，而該射出模穴10與該下模仁22之間形成有注料空間，另包覆於動模2之上模仁21的熱胚料A則隨上模仁21設入於靜模1之上成型模穴12內；(g)動模2位於靜模1上位之熱胚料射出及吹氣(如第八圖所示)：將加熱後熔融軟化之熱胚料A由該靜模1之射出口13射出於射出模穴10中之注料空間，熱胚料A則包覆於動模2之下模仁22上，而動模2之上模仁21的吹氣口23則向靜模1之上成型模穴12內進行吹氣，將包覆於上模仁21上之熱胚料A於上成型模穴12中吹氣成型；
(h)動模2位於靜模1上位之開模及脫模(如第九圖所示)：動模2復位移動脫離靜模1形成開模狀態，包覆於動模2之下模仁22上的熱胚料A則隨動模2之下模仁22脫離射出模穴10，而於上成型模穴12內吹製成型之成品B則隨上模仁21脫離上成型模穴12，再將上模仁21上之成品B取下，即完成上位脫模動作；(i)將上位脫模完成後之動模2向下復位移動至靜模1之下位，並重複前述步驟(a)~(h)之動作(如第五~九圖所示)，即可連續製造中空狀之產品。
The present invention uses the injection blow molding mold set to perform injection blow molding. Please refer to the first to ninth figures. The steps are as follows: (a) The
本發明射吹成型之方法，藉由上述(a)~(h)之步驟循環製造，使動模2於靜模1之下位進行射出、吹氣成型、脫模後(如第五、六圖所示)，動模2再向上移動至靜模1之上位進行射出、吹氣成型、脫模後(如第七、八、九圖所示)，動模2再次向下移動復位於靜模1之下位進行射出、吹氣成型、脫模(如第五、六圖所示)，本發明利用動模2對應靜模1呈上、下往復移動之連續循環步驟，可同時完成射胚與吹氣成型之動作，可提升產品B之生產速度，降低製造成本，且可縮小整體模具組之體積，降低模具之製造成本，並可縮減整體機台之體積及擺置空間。
The injection blow molding method of the present invention is manufactured through the above-mentioned steps (a) ~ (h), and the
綜上所述，本發明確實已達到所預期之使用目的與功效，且更較習知者為之理想、實用，惟，上述實施例僅係針對本發明之較佳實施例進行具體說明而已，該實施例並非用以限定本發明之申請專利範圍，舉凡其它未脫離本發明所揭示之技術手段下所完成之均等變化與修飾，均應包含於本發明所涵蓋之申請專利範圍中。 To sum up, the present invention has indeed achieved the expected purpose and effect, and is more ideal and practical than the conventional ones. However, the above embodiments are only specific descriptions of the preferred embodiments of the present invention. This embodiment is not intended to limit the patentable scope of the present invention. All other equivalent changes and modifications made without departing from the technical means disclosed in the present invention should be included in the patentable scope of the present invention.
1:靜模 1: static mold
10:射出模穴 10: Injection mold cavity
11:下成型模穴 11: Lower mold cavity
12:上成型模穴 12: Upper molding cavity
13:射出口 13:Ejection port
2:動模 2:Dynamic mold
21:上模仁 21: Upper mold kernel
22:下模仁 22:Lower mold kernel
23、24:吹氣口 23, 24: Blowing port
Claims (1)
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| TW111119243A TWI815471B (en) | 2022-05-24 | 2022-05-24 | Injection blow molding method |
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|---|---|---|---|
| TW111119243A TWI815471B (en) | 2022-05-24 | 2022-05-24 | Injection blow molding method |
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| TW202346071A TW202346071A (en) | 2023-12-01 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201107116A (en) * | 2009-08-28 | 2011-03-01 | Lin qiong qi | Bottle retrieving method for blown bottle mold |
| US20140151323A1 (en) * | 2006-08-10 | 2014-06-05 | Capitol Vial Inc. | Apparatus And Method For Forming A Container Having A Receptacle And An Integral Cap And Product Formed Thereby |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140151323A1 (en) * | 2006-08-10 | 2014-06-05 | Capitol Vial Inc. | Apparatus And Method For Forming A Container Having A Receptacle And An Integral Cap And Product Formed Thereby |
| TW201107116A (en) * | 2009-08-28 | 2011-03-01 | Lin qiong qi | Bottle retrieving method for blown bottle mold |
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