TW424038B - Injection-foamed product having a different material portion and a manufacturing method thereof - Google Patents

Injection-foamed product having a different material portion and a manufacturing method thereof Download PDF

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Publication number
TW424038B
TW424038B TW087104281A TW87104281A TW424038B TW 424038 B TW424038 B TW 424038B TW 087104281 A TW087104281 A TW 087104281A TW 87104281 A TW87104281 A TW 87104281A TW 424038 B TW424038 B TW 424038B
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Taiwan
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auxiliary
cavity
main
auxiliary material
main material
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TW087104281A
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Chinese (zh)
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Soo-Kwan Park
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Young Chang New Technology Cor
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00Producing footwear
    • B29D35/12Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/14Multilayered parts
    • B29D35/142Soles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/12Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
    • B29C33/14Moulds or cores; Details thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels against the mould wall
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1228Joining preformed parts by the expanding material
    • B29C44/1233Joining preformed parts by the expanding material the preformed parts being supported during expanding
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04Homopolymers or copolymers of ethene
    • C08L23/08Copolymers of ethene
    • C08L23/0846Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
    • C08L23/0853Vinylacetate
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2023/00Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04Polymers of ethylene
    • B29K2023/08Copolymers of ethylene
    • B29K2023/083EVA, i.e. ethylene vinyl acetate copolymer

Abstract

An injection-foamed product having a different material portion and a manufacturing method thereof. The method comprises steps of preparing a main material mixture, preforming an auxiliary material piece having a property different from a property of the main material mixture, forming an auxiliary cavity region in a cavity of a mold for injection-foaming, placing the auxiliary material piece in the auxiliary cavity region, filling up the main material mixture in the cavity, maintaining the main material mixture and the auxiliary material piece in the cavity under a predetermined temperature and pressure for a predetermined time, and opening the mold to obtain the injection-foamed product. Accordingly, injection-foamed products having various properties such as color, density and hardness can be easily and ifficiently obtained.

Description

424038 2 798pif.doc/002 A7 ____B7_ 五、發明說明(i) 本發明是有關於一種具不同材質部份的泡沬射出 (Injection-Foamed)產品及其生產方法。 泡沫射出方法的步驟包括:將形成於模子(Mold)內 的預定形狀之空洞(Cavity),塡滿樹脂(Resin)的混合 物和發泡劑(Foaming Agent),其中樹脂的混合物比如乙 稀-醋酸乙嫌共聚物(Ethylene Vinylacetate Copolymer, EVA),且將空洞裏的混合物保持在約170〜190°C的溫度 下約6〜10分鐘,然後將模子打開以獲得泡沬射出產品, 而此泡沫射出產品的擴張是藉由從發泡劑擴張成泡沫氣 體〔Foaming Gas ),此泡沫射出產品的大小與空洞的大小 比較約擴張30%或更多。泡沫射出的方法,目前已被發展, 但尙未普遍化。然而,因爲泡沫射出方法能迅速且容易地 提供具有不同形狀和特性的泡沫產品,因此預期將被廣泛 地應用。 泡沫射出產品已積極地使用於鞋子的部份製造上’特 別是運動鞋,比如鞋底的中間(Mid-sole)和鞋底的外部 (Out-sole)。目前,鞋子完整的鞋底在泡沫射出產品的 外形上已被發展。 經濟部智慧財產局員工消費合作社印製 ------------Γ -裝--------訂 <請先閱讀背面之注意事項再填寫本頁) 如美國專利案號4,245,406中所揭露,在傳統的運動 鞋上,鞋底外部的橡膠(Rubber)黏著於泡沬材質的鞋底 中間之下表面,其中泡沬材質比如聚胺基甲酸 (Polyurethane)。然而,上述泡沫射出方法能將鞋底中間 和鞋底外部彤成於一整塊上,藉以降低產品的重量和增加 生產率,並使生產成本降低。 4 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 29ϋ η ^ 4 uo ¢5 -798pif.doc/002 A7 ____B7_ 五、發明說明(?) 然而,在泡沫射出方法上1因爲在模子的空洞內提供 流體狀態的物質,且在預定的時間經交連反應(Cross-linking Reaction)以獲得泡沫射出產品,此流體物質必須 是同相(Homogeneous)的。因此,產品在性質上,比如 顏色、密度和硬度,通常是單調沒有變化的。再者,在抗 硏磨(Anti-abrasiveness)方面,泡沫射出物質典型上是劣' 於射出成型(Injection-molded)物質或橡膠。由於這些關 係,如果泡沬射出方法能提供具有至少一不同的材質部份 之泡沬射出產品,以獲得不同的顏色、密度和硬度,則此 方法會是較佳的方法。 因此本發明的主要目的,就是在提供一種具有不同材 質部份的泡沫射出產品及其生產方法。 爲達成本發明之上述目的,提供一種具有不同材質部 份的射出產品之生產方法,其步驟包括:提供一主要材質 混合物,此主要材質混合物包含一主要樹脂和一發泡劑; 並預先形成一輔助材質塊,此轉助材質塊包含能與主要樹 脂交連之一輔助樹脂,且輔助材質塊與主要材質混合物有 不同的性質;在用於泡沬射出之一模子的空洞裏,形成一 輔助空洞區域;接著將輔助材質塊放置於輔助空洞區域 內;之後在空洞內塡滿在流動狀態下之主要材質混合物; 然後將空洞內之主要材質混合物和輔助材質塊,在一預定 的時間內’維持於一預定的溫度和壓力;最後打開模子以 獲得泡沫射出產品。 較佳的是主要材質混合物和輔助材質塊有相同的樹 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公釐) <請先閱讀背面之注意事項再填寫本頁) >裝---- 訂------ ---. 經濟部智慧財產局員工消費合作杜印製 經濟部智慧財產局員工消費合作社印製 4Z4U30 2798pif'.docO02 A7 _____B7______ 五、發明說明(多) 脂,且在顏色、密度和硬度上至少有一不同。此相同的樹 脂較佳的可能是EVA。 在此,輔助材質塊可進一步包括發泡劑,且在低於發 泡劑的發泡溫度(Foaming Temperature)下,預先形成輔 助材質塊。 爲達成本發明之上述目的,亦提供一種具有不同材質 部份的射出產品,其生產方法係根據以下的方法:提供一 主要材質混合物,此主要材質混合物包含一主要樹脂和一 發泡劑;並預先形成一輔助材質塊,此輔助材質塊包含能 與主要樹脂交連之一輔助樹脂,且輔助材質塊與主要材質 混合物有不同的性質;在用於泡沬射出之一模子的空洞 裏,形成一輔助空洞區域;接著將輔助材質塊放置於輔助 空洞區域內;之後在空洞內塡滿在流動狀態下之主要材質 混合物;然後將空洞內之主要材質混合物和輔助材質塊, 在一預定的時間內,維持於一預定的溫度和壓力;最後打 開模子以獲得泡沫射出產品。 爲讓本發明之上述和其他目的、特徵、和優點能更明 顯易懂,下文特舉一較佳實施例,並配合所附圖式,作詳 細說明如下: 圖式之簡單說明: 第1圖係繪示根據本發明一種應用於鞋子之鞋底的泡 沬射出產品的透視圖 第2圖係繪示第1圖之II-II面的剖面圖; 第3圖係繪示一種模子的剖面圖,用於解釋根據本發 6 ------------'V裝----1---訂 ------—Λ〆 <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)A4規格(210 X 297公釐) 經濟部智慧財產局員工消费合作社印製 24038 2798pif.doc 002 A7 五、發明說明(¥ ) 明一種射出產品的生產方法; 第4圖係繪示第3圖之下模(Lower Die)的平面圖; 以及 第5圖至第7圖係繪示第3圖之模子的剖面圖,用於 連續解釋根據本發明的方法。 圖示標記說明: 1 :鞋子 2,2a :主要材質部分 3,3a :第一輔助材質部分 4,4a :第二輔助材質部分 5 :部分下表面 10 :模子 12 :下模 13 :空洞 14 :上模 15,17 :輔助空洞區域 16,18 :分隔壁 20 :主要材質入口 2ί :主要材質流道 實施例 請參照第丨圖和第2圖,比如以運動鞋做爲具有不同 材質部份的泡沫射出產品的一個應用,根據本發明一種鞋 子1有一完整的外形,其與傳統運動鞋的鞋子中間和鞋子 外部分開形成成對比。 本紙張尺度適用中國國家標準(CNS)A4規格(210 X 297公楚) ί請先閱讀背面之注意事項再填寫本頁) ^裝------ 訂---------* 經濟部智慧財產局員工消費合作社印製 424038 2 798pif.d oc 0 0 2 A7 B7 五、發明說明(f ) 鞋子!包括佔據鞋子大部份的主要材質部份(Main Material Portion ) 2,以及佔據鞋子I部份下表面的第一輔 助材質部份(Auxiliary Material Portion) 3和第二輔助材 質部份4。主要材質部份2和第一、第二輔助材質部份3、 4,包括在預定的條件下能彼此交連的樹脂材質。較佳的 狀況是樹脂材質彼此相同。較佳的是聚胺基甲酸、聚苯乙 細(Polystyrene )、EVA、PVC 和熱塑性橡膠(Thermoplastic Rubber, TPR)其中之一,特別是EVA。 藉由調整主要材質和輔助材質之所有物品和發泡劑 的種類或添加物(AdditWe),可使主要材質部份2和第 一、第二輔助物質部份3、4有不同的密度、硬度、彈性 (Elasticity)或顏色。例如,比主要材質部份有較高的抗 硏磨性、密度或硬度的輔助材質部份,可應用於鞋子的鞋 跟區域。有不同顏色的輔助材質部份,可供給泡沫射出產 品被設計成兩種色調或多種色調的顏色。 第3圖係繪示形成有輔助材質部份3和4的鞋子1之 模子剖面圖,第4圖係繪示第3圖之下模的俯視圖。在此, 形成在模子10中之空洞13的形狀比第1圖的簡單,以方 便於後面的描述。 模子】〇包括下模12,其上表面形成空洞13 ;和覆蓋 空洞13的上模(Upper Die) 14。藉著趨動方法(Driving Mean)(未繪示出)將下模12和上模14彼此靠近和遠離, 以關閉和打開空洞13。 請參照第3圖和第4圖,在下模12的空洞13,形成 -. · 4 K * 本紙張尺度適用中國國家標準(CNSM4規格(210 X 297公釐) -------1------ *---I--—訂 ----I--1-I C請先閲讀背面之注意事項再填寫本頁) 424038 2798pif.doc: A7 _ B7 五、發明說明(& ) 第一和第二輔助空洞區域(Auxiliary Cavity Region) 15 和17,以形成鞋子】的第一和第二輔助材質部份3和4。 輔助空洞區域15和17藉由各別的分隔壁(Partitioning Wall) 16和丨8而分隔,其中分隔壁16和18是從剩餘的 空洞區域從空洞13的底部向上突起。在下模12形成主要 材質流道(Main Material Runner) 21,以連接主要材質入 口 20到空洞13的內部。供應到主要材質入口 20的主要 材質會流經主要材質流道21而到空洞13裏。 有不同材質部份的鞋子1之生產方法,請參照第5圖 至第7圖。 首先,爲主要材質區域2提供主要材質混合物(Main Material Mixture)。主要材質混合物包括做爲主要成份的 樹脂,以及發泡劑。此樹脂係選自一族群包括聚胺基甲 酸、聚苯乙烯、EVA、PVC、TPR之一。 預先形成輔助材質區域3和4之固態的輔助材質塊 (Auxiliary Material Piece )。輔助材質塊包括做爲主要成 份的樹脂,此樹脂能容易地與主要材質混合物的樹脂交 連,較佳的樹脂是與主要材質混合物的樹脂相同。尤其是 EVA,爲主要材質混合物和輔助材質塊最佳的主要成份。 輔助材質塊的材質可包括發泡劑。在此例中,輔助材 質塊必須在低於發泡劑的活化溫度(Active Temperature) 下形成1以與主要材質混合物一起在模型10的空洞13内 變成泡沫。主要材質混合物不同於在發泡劑的所有物品或 包含各種添加物的輔助材質塊,以致於生產鞋子]有輔助 9 本纸張尺度適用中國國家標準(CNS>A4規格(210 X 297公t ) (請先閱讀背面之注意事項再填寫本頁) · I----11 ---I---1-1 經濟部智慧財產局員工消费合作社印製 2 798pif.doc/002 A7 _____B7___ 五、發明說明(q ) 材質部份,而此輔助材質部份的密度、硬度和顏色不同於 主要材質部份。 在上模14移離下模12以打開空洞13的狀況下,對 應於第一和第二輔助材質部份3和4之預先形成的輔助材 質塊3a和4a,被分別放置於第一和第二輔助空洞區域15 和17。然後,上模14向下移動,以關閉空洞π,如第5 圖所示。當下模1 2的空洞1 3靠近上模14後,主要材質 混合物經由主要材質流道21供應到空洞13,以塡滿空洞 1 3,如第6圖所示。 主要材質混合物和輔助材質塊3a和4a—起在空洞13 中保持約17〇〜190°C的溫度,其時間約爲6〜10分。主要材 質混合物會進行內部交連。再者,與主要材質混合物相關 的輔助材質塊3 a和4a之界面(Boundary Surface )被活化 (Activated ),在主要材質混合物和界面之間發生交連反 應,且完整地合併主要材質和輔助材質塊3a和4a。 在預定的時間後,上模14藉由趨動方法上升,而將 空洞Π打開。此時,完整合併的材質,藉由從發泡劑所 形成的泡沬氣體之擴張,而快速地擴張,並從空洞13脫 離以形成鞋子1,如第7圖所示。如此形成的鞋子1經由 …製程比如修邊(Trimming),以形成成品。完成的鞋子 1包括主要材質部份2,以及第一和第二輔助材質塊3和 4,其中根據輔助材質塊3a和4a組成的選擇,而使第一和 第二輔助材質塊3和4在顏色、密度或硬度彼此不同。 雖然本發明已以一較佳實施例揭露如上,然其並非用 本紙張尺度適用中國國家標準(CN;S)A4規格(210 X 297公釐) (諳先閲讀背面之注意事項再填寫本頁) 裝---- _^i -i-rej ( 經濟部智慧財產局員工消費合作社印製 42^038 2 7 9 8 p e f. d 〇 c Ο 0 2 A7 _______B7 五、發明說明(y ) 以限定本發明,任何熟習此技藝者,在不脫離本發明之精 神和範圍內,當可作各種之更動與潤飾,因此本發明之保 護範圍當視後附之申請專利範圍所界定者爲準。 (諳先閱讀背面之注意事項再填寫本頁) 裝---- .^1 «I ^1 ^1 訂---------人/ 經濟郤智慧財產局具工消費合作社印製 本纸張尺度適用令國家標準(CNS)A4規格(210 X 297公发)424038 2 798pif.doc / 002 A7 ____B7_ V. Description of the invention (i) The present invention relates to an Injection-Foamed product with different material parts and a method for producing the same. The steps of the foam injection method include: forming a cavity of a predetermined shape (Cavity) formed in a mold (Mold), a mixture filled with a resin (Resin), and a foaming agent (Foaming Agent), wherein the resin mixture such as ethylene-acetic acid Ethylene Vinylacetate Copolymer (EVA), and the mixture in the cavity is kept at a temperature of about 170 ~ 190 ° C for about 6 ~ 10 minutes, and then the mold is opened to obtain a foam injection product, and the foam is ejected The expansion of the product is by expanding from a foaming agent into a foaming gas (Foaming Gas), and the size of the foam ejected product is expanded by about 30% or more compared with the size of the cavity. The method of bubble ejection has been developed, but it has not been universalized. However, since the foam injection method can quickly and easily provide foam products having different shapes and characteristics, it is expected to be widely used. Foam injection products have been actively used in the manufacture of parts of shoes', especially sports shoes, such as mid-sole and out-sole. Currently, complete shoe soles have been developed in the shape of foam injection products. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ------------ Γ-Equipment -------- Order (Please read the notes on the back before filling this page) such as the United States Patent No. 4,245,406 discloses that in traditional sports shoes, rubber on the outside of the sole is adhered to the lower surface of the middle of the sole of the foam material, wherein the foam material is, for example, polyurethane. However, the above-mentioned foam injection method can integrate the middle of the sole and the outside of the sole into a single piece, thereby reducing the weight of the product, increasing productivity, and reducing production costs. 4 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 29ϋ η ^ 4 uo ¢ 5 -798pif.doc / 002 A7 ____B7_ V. Description of the invention (?) However, because of the foam injection method 1 A fluid-state substance is provided in the cavity, and a cross-linking reaction is obtained at a predetermined time to obtain a foamed ejected product. This fluid substance must be homogeneous. Therefore, the product has properties such as color and density. And hardness are usually monotonous and unchanged. Furthermore, in terms of anti-abrasiveness, foam injection materials are typically inferior to injection-molded materials or rubber. Because of these relationships, if the foam The radon injection method can provide bubble radon injection products with at least one different material part to obtain different colors, densities, and hardnesses. This method would be a better method. Therefore, the main object of the present invention is to provide a Foam injection product with different material parts and production method thereof. In order to achieve the above object of the present invention, a foamed product with different material parts is provided. The method for producing a part of injection products includes the steps of: providing a main material mixture, the main material mixture including a main resin and a foaming agent; and forming an auxiliary material block in advance. A cross-linked auxiliary resin, and the auxiliary material block has different properties from the main material mixture; in the cavity used for the injection of a mold, an auxiliary hollow area is formed; then the auxiliary material block is placed in the auxiliary hollow area; Then fill the cavity with the main material mixture in the flowing state; then, maintain the main material mixture and the auxiliary material block in the cavity at a predetermined temperature and pressure for a predetermined time; finally, open the mold to obtain foam Injection product. It is better that the main material mixture and the auxiliary material block have the same tree paper size. Applicable to China National Standard (CNS) A4 specification (210 X 297 mm) < Please read the precautions on the back before filling this page. ) > Install ---- Order ------ ---. Intellectual Property Bureau, Ministry of Economic Affairs, Consumer Cooperation Property Office employees consumer cooperatives printed 4Z4U30 2798pif'.docO02 A7 _____B7______ five instructions (and more) invention fat, and at least one different in color, density and hardness. This same resin is probably better EVA. Here, the auxiliary material block may further include a foaming agent, and the auxiliary material block is formed in advance at a temperature lower than the foaming temperature of the foaming agent. In order to achieve the above object of the present invention, an injection product having different material portions is also provided. The production method is based on the following method: providing a main material mixture, the main material mixture including a main resin and a foaming agent; and An auxiliary material block is formed in advance. The auxiliary material block contains an auxiliary resin which can be connected with the main resin, and the auxiliary material block and the main material mixture have different properties; in a cavity used for injection of a mold, a Auxiliary cavity area; then place the auxiliary material block in the auxiliary cavity area; then fill the cavity with the main material mixture in the flowing state; and then mix the main material mixture and the auxiliary material block in the cavity within a predetermined time , Maintained at a predetermined temperature and pressure; finally, the mold was opened to obtain a foam injection product. In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is given below in conjunction with the accompanying drawings for detailed description as follows: Brief description of the drawings: FIG. 1 FIG. 2 is a perspective view of a foam injection product applied to the sole of a shoe according to the present invention. FIG. 2 is a cross-sectional view of the II-II plane of FIG. 1; FIG. 3 is a cross-sectional view of a mold. Used to explain according to the present 6 ------------ 'V equipment ---- 1 --- Order ------ Λ〆 < Please read the precautions on the back before (Fill in this page) This paper size is in accordance with Chinese National Standard (CNS) A4 (210 X 297 mm). Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. Fig. 4 is a plan view showing a lower die of Fig. 3; and Figs. 5 to 7 are cross-sectional views of the die of Fig. 3 for continuous explanation according to the present invention Methods. Description of icons: 1: shoes 2, 2a: main material part 3, 3a: first auxiliary material part 4, 4a: second auxiliary material part 5: part of lower surface 10: mold 12: lower mold 13: cavity 14: Upper mold 15,17: auxiliary cavity area 16,18: partition wall 20: main material inlet 2ί: Please refer to Figure 丨 and Figure 2 for examples of main material runners. For example, use sports shoes as parts with different materials An application of foam injection products, according to the present invention, a shoe 1 has a complete shape, which is in contrast to the middle and the outer part of a shoe of a traditional athletic shoe. This paper size applies to China National Standard (CNS) A4 specification (210 X 297). Please read the precautions on the back before filling out this page) ^ Install -------- Order --------- * Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 424038 2 798pif.d oc 0 0 2 A7 B7 V. Description of the Invention (f) Shoes! It includes the Main Material Portion 2 which occupies most of the shoes, and the first Auxiliary Material Portion 3 and the second Auxiliary Material 4 which occupy the lower surface of the shoe I. The main material portion 2 and the first and second auxiliary material portions 3 and 4 include a resin material which can be interconnected with each other under predetermined conditions. It is preferable that the resin materials are the same as each other. Preferred is one of polyurethane, polystyrene, EVA, PVC, and thermoplastic rubber (TPR), especially EVA. By adjusting the types and additions of all the materials and foaming agents of the main and auxiliary materials (AdditWe), the main material part 2 and the first and second auxiliary material parts 3 and 4 can have different densities and hardnesses. , Elasticity, or color. For example, an auxiliary material portion that has higher anti-friction, density or hardness than the main material portion can be applied to the heel area of a shoe. There are different colors of auxiliary material parts, and foam injection products can be designed in two or more colors. Fig. 3 is a sectional view of the mold of the shoe 1 having the auxiliary material portions 3 and 4 formed thereon, and Fig. 4 is a plan view of the lower mold of Fig. 3. Here, the shape of the cavity 13 formed in the mold 10 is simpler than that in FIG. 1 to facilitate the following description. The mold] includes a lower mold 12 having a cavity 13 formed on an upper surface thereof, and an upper die 14 covering the cavity 13. The lower mold 12 and the upper mold 14 are brought closer and further away from each other by a driving means (not shown) to close and open the cavity 13. Please refer to Figures 3 and 4 to form-. · In the cavity 13 of the lower mold 12-4 K * This paper size applies to the Chinese national standard (CNSM4 specification (210 X 297 mm) ------- 1- ----- * --- I --- Order ---- I--1-IC, please read the notes on the back before filling this page) 424038 2798pif.doc: A7 _ B7 V. & Invention Description (&) The first and second auxiliary cavity regions (Auxiliary Cavity Region) 15 and 17 to form the first and second auxiliary material parts 3 and 4 of the shoe]. The auxiliary cavity areas 15 and 17 are separated by respective partitioning walls 16 and 8, wherein the partition walls 16 and 18 protrude upward from the bottom of the cavity 13 from the remaining cavity area. A main material runner 21 is formed in the lower mold 12 to connect the main material inlet 20 to the interior of the cavity 13. The main material supplied to the main material inlet 20 flows through the main material flow path 21 and into the cavity 13. For the production method of shoes 1 with different material parts, please refer to Figure 5 to Figure 7. First, a main material mixture is provided for the main material region 2. The main material mixture includes resin as a main component, and a foaming agent. This resin is selected from the group consisting of one of polyurethane, polystyrene, EVA, PVC, and TPR. A solid auxiliary material pieces (Auxiliary Material Piece) of auxiliary material regions 3 and 4 are formed in advance. The auxiliary material block includes resin as the main component, and this resin can be easily crosslinked with the resin of the main material mixture. The preferred resin is the same as the resin of the main material mixture. Especially EVA is the best main ingredient for the main material mixture and auxiliary material block. The material of the auxiliary material block may include a foaming agent. In this example, the auxiliary material block must form 1 at a temperature below the active temperature of the blowing agent to become a foam in the cavity 13 of the mold 10 together with the main material mixture. The main material mixture is different from all the items in the foaming agent or the auxiliary material block containing various additives, so as to produce shoes] There are auxiliary 9 paper sizes applicable to Chinese national standards (CNS > A4 specifications (210 X 297 metric t) (Please read the notes on the back before filling this page) · I ---- 11 --- I --- 1-1 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 2 798pif.doc / 002 A7 _____B7___ V. Description of the invention (q) The material part, and the density, hardness, and color of this auxiliary material part are different from those of the main material part. In the situation where the upper mold 14 is moved away from the lower mold 12 to open the cavity 13, it corresponds to the first and The pre-formed auxiliary material blocks 3a and 4a of the second auxiliary material parts 3 and 4 are placed in the first and second auxiliary cavity areas 15 and 17, respectively. Then, the upper mold 14 is moved downward to close the cavity π, As shown in Figure 5. When the cavity 13 of the lower mold 12 is close to the upper mold 14, the main material mixture is supplied to the cavity 13 through the main material flow channel 21 to fill the cavity 13, as shown in Fig. 6. Main Material mixtures and auxiliary material blocks 3a and 4a-play in the cavity 13 The temperature is about 17 ~ 190 ° C, and its time is about 6 ~ 10 minutes. The main material mixture will be internally connected. Furthermore, the interface (Boundary Surface) of the auxiliary material blocks 3a and 4a related to the main material mixture is Activated, cross-linking reaction occurs between the main material mixture and the interface, and the main material and auxiliary material blocks 3a and 4a are completely integrated. After a predetermined time, the upper mold 14 is raised by the actuation method, and the cavity is hollowed. Π opens. At this time, the completely merged material expands rapidly from the foaming gas formed by the foaming agent, and detaches from the cavity 13 to form the shoe 1, as shown in FIG. 7. This is formed The shoe 1 is produced by a process such as trimming to form a finished product. The finished shoe 1 includes a main material part 2 and first and second auxiliary material blocks 3 and 4, which are composed according to the auxiliary material blocks 3a and 4a. Selection, so that the first and second auxiliary material blocks 3 and 4 are different from each other in color, density or hardness. Although the present invention has been disclosed as above with a preferred embodiment, it is not applicable to this paper scale. National Standard (CN; S) A4 (210 X 297 mm) (谙 Please read the precautions on the back before filling this page) ---- _ ^ i -i-rej (Consumer Consumption of Intellectual Property Bureau, Ministry of Economy Printed by the cooperative 42 ^ 038 2 7 9 8 pe f. D oc 0 0 A 2 _______ B7 V. Description of the invention (y) To limit the present invention, anyone skilled in the art will not depart from the spirit and scope of the present invention, Various modifications and retouching can be made, so the scope of protection of the present invention shall be determined by the scope of the attached patent application. (谙 Please read the precautions on the back before filling in this page) Loading ----. ^ 1 «I ^ 1 ^ 1 Order ---------Printed by the People / Economy but Intellectual Property Bureau Tooling Consumer Cooperative This paper size applies the national standard (CNS) A4 specification (210 X 297)

Claims (1)

經濟部智慧財產局員工消費合作社印裝 424 038 ψ¥ -,798pif doc/002 ,厂 C8 第onnunJ! 利碰I修正於— 六、申請專利範圍 1 一種具不同材質部份的泡沬射出產品之生產方 法,包括: 提供一主要材質混合物,該主要材質混合物包含一主 要樹脂和一發泡劑: 預先形成一輔助材質塊,該輔助材質塊包含一輔助樹 脂,該輔助樹脂能與該主要樹脂交連,且該輔助材質塊與 該主要材質混合物有不同的性質; 在用於泡沬射出之一模子的一空洞裏,形成一輔助空 洞區域; 放置該輔助材質塊於該輔助空洞區域內; 在該空洞內塡滿在流動狀態下之該主要材質混合 物; 將該空洞內之該主要材質混合物和該輔助材質塊,在 一預定的時間內,維持於一預定的溫度和壓力;以及 打開該模子以獲得該泡沬射出產品。 2. 如申請專利範圍第1項所述之生產方法,其中該主 要材質混合物和該輔助材質塊有一相同的樹脂,且彼此在 顏色、密度和硬度至少之··-會不同。 3. 如申請專利範圍第2項所述之生產方法,其中該相 同的樹脂係爲EVA。 4. 如申請專利範圍第3項所述之生產方法,其中該輔 助材質塊更包括一發泡劑,且該輔助材質塊進行的溫度低 於該發泡劑的泡沬溫度。 5. —種具不同材質部份的泡沬射出產品,其係根據申 (請先閲讀背面之注意事項再填寫本頁) 裝 訂---------線 本纸張又度適用中國國家標準(CNS〉A4規恪(210x297公釐) 424038Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs The production method includes: providing a main material mixture, the main material mixture including a main resin and a foaming agent: forming an auxiliary material block in advance, the auxiliary material block including an auxiliary resin, the auxiliary resin being able to crosslink with the main resin And the auxiliary material block has different properties from the main material mixture; forming an auxiliary cavity area in a cavity for one of the molds for bubble injection; placing the auxiliary material block in the auxiliary cavity area; in the The cavity is filled with the main material mixture in a flowing state; the main material mixture and the auxiliary material block in the cavity are maintained at a predetermined temperature and pressure for a predetermined time; and the mold is opened to This foam injection product was obtained. 2. The production method as described in item 1 of the scope of patent application, wherein the main material mixture and the auxiliary material block have the same resin, and are different from each other in color, density, and hardness at least ... 3. The production method as described in item 2 of the scope of patent application, wherein the same resin is EVA. 4. The production method according to item 3 of the scope of patent application, wherein the auxiliary material block further comprises a foaming agent, and the temperature at which the auxiliary material block is performed is lower than the foaming temperature of the foaming agent. 5. —Bubbled injection products with different material parts, according to the application (please read the precautions on the back before filling in this page) Binding --------- The thread paper is suitable for China again National Standard (CNS> A4 Regulations (210x297 mm) 424038 798pif.doc/〇0: /C/ A8B8C8D8 六、申請專利範圍 請專利範圍第1項的方法所生產,其方法步驟如下: 提供一主要材質混合物,該主要材質混合物包含一主 要樹脂和一發泡劑; 預先形成一輔助材質塊,該輔助材霄塊包含一輔助樹 脂,該輔助樹脂能與該主要樹脂交連,且該輔助材質塊與 該主要材質混合物有不同的性質; 在用於泡沫射出之一模子的一空洞裏,形成一輔助空 洞區域: 放置該輔助材質塊於該輔助空洞區域內; 在該空洞內塡滿在流動狀態下之該主要材質混合 物; 將該空洞內之該主要材質混合物和該輔助材質塊,在 —預定的時間內,維持於一預定的溫度和壓力;以及 打開該模子以獲得該泡沫射出產品。 '* -·!;----------> 裝--------訂---------埃r (請先閱讀背面之注意事項再填寫本頁) 經濟邹智慧財產局員工消費合作钍印製 J. 本紙張反度適用t國國家楳準(CNS) A·!規格(210 * 297公度>798pif.doc / 〇0: / C / A8B8C8D8 6. The scope of the patent application is produced by the method of the first patent scope. The method steps are as follows: Provide a main material mixture, the main material mixture contains a main resin and a foam An auxiliary material block is formed in advance, the auxiliary material block contains an auxiliary resin, the auxiliary resin can be cross-linked with the main resin, and the auxiliary material block and the main material mixture have different properties; A cavity of a mold forms an auxiliary cavity area: the auxiliary material block is placed in the auxiliary cavity area; the cavity is filled with the main material mixture in a flowing state; the main material mixture in the cavity is filled And the auxiliary material block is maintained at a predetermined temperature and pressure for a predetermined time; and the mold is opened to obtain the foam injection product. '*-·!; ---------- > Outfit -------- Order --------- Er (Please read the notes on the back before filling in this Page) Economic Zou Intellectual Property Bureau, Consumer Co-operation, Printed by J. The reverse of this paper is applicable to National Standards (CNS) A ·! Specifications (210 * 297 degrees >
TW087104281A 1997-08-29 1998-03-23 Injection-foamed product having a different material portion and a manufacturing method thereof TW424038B (en)

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CN105291351A (en) * 2015-11-14 2016-02-03 重庆跃发日用品有限公司 Arranging structure for hard spheres, for massaging slipper sole, in manufacturing die
CN105291377A (en) * 2015-11-14 2016-02-03 重庆跃发日用品有限公司 Manufacturing die of massaging slipper soles
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CN105291351A (en) * 2015-11-14 2016-02-03 重庆跃发日用品有限公司 Arranging structure for hard spheres, for massaging slipper sole, in manufacturing die
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CN105459327A (en) * 2015-11-14 2016-04-06 重庆跃发日用品有限公司 Production method for massaging slipper soles

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BR9800935A (en) 2000-05-23
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ES2164499B1 (en) 2003-05-16

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