CN106392006A - 一种eva热成型模具及其制作工艺 - Google Patents

一种eva热成型模具及其制作工艺 Download PDF

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CN106392006A
CN106392006A CN201610761818.4A CN201610761818A CN106392006A CN 106392006 A CN106392006 A CN 106392006A CN 201610761818 A CN201610761818 A CN 201610761818A CN 106392006 A CN106392006 A CN 106392006A
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core
dipping form
aluminum dipping
die cavity
channel
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张荣梧
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Union Wing (qingyuan) Mold Manufacturing Co Ltd
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Union Wing (qingyuan) Mold Manufacturing Co Ltd
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Priority to CN201610761818.4A priority Critical patent/CN106392006A/zh
Publication of CN106392006A publication Critical patent/CN106392006A/zh
Priority to US15/483,328 priority patent/US20180056573A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/30—Moulds
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04—Plastics, rubber or vulcanised fibre
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/22—Moulds for peculiarly-shaped castings
    • B22C9/24—Moulds for peculiarly-shaped castings for hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/0072—Casting in, on, or around objects which form part of the product for making objects with integrated channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D25/00—Special casting characterised by the nature of the product
    • B22D25/02—Special casting characterised by the nature of the product by its peculiarity of shape; of works of art
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/002—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/0009—Producing footwear by injection moulding; Apparatus therefor
    • B29D35/0018—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/0054—Producing footwear by compression moulding, vulcanising or the like; Apparatus therefor
    • B29D35/0063—Moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/122—Soles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/128—Moulds or apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/14—Multilayered parts
    • B29D35/148—Moulds or apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/08—Copolymers of ethylene
    • B29K2023/083—EVA, i.e. ethylene vinyl acetate copolymer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2905/00—Use of metals, their alloys or their compounds, as mould material
    • B29K2905/02—Aluminium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2911/00—Use of natural products or their composites, not provided for in groups B29K2801/00 - B29K2809/00, as mould material
    • B29K2911/14—Wood, e.g. woodboard or fibreboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/48—Wearing apparel
    • B29L2031/50—Footwear, e.g. shoes or parts thereof
    • B29L2031/504—Soles

Abstract

本发明公开了一种EVA热成型模具，包括上铝模和下铝模，上铝模和下铝模铰接，且均设有拉手；所述上铝模设有凸起的模型，下铝模设有下凹的型腔，所述上铝模内部设有途经模型内部的上通道，所述下铝模内部设有途经型腔底部的下通道；所述上通道在上铝模内表面设有开口一，所述下通道在下铝模内表面设有与开口一位置相应且相通的开口二；所述下通道两侧分别设有蒸汽/水进口和蒸汽/水出口。其制作工艺，包括以下步骤：(1)制作下砂芯定型模；(2)制作上砂芯定型模；(3)砂芯定位；(4)EVA定型铝模铝水浇筑；(5)模具加工完成。本发明与现有技术相比的优点是：导热系数较不锈钢的导热系数高；大大缩短了生产时间，以及降低了能源的损耗。

Description

一种EVA热成型模具及其制作工艺
技术领域
本发明涉及模具制作方法，尤其涉及一种EVA热成型模具及其制作工艺。
背景技术
传统EVA定型铝模(埋管铸造)加工流程：EVA定型铝模铸造时，把不锈钢管埋在EVA砂模中进行铝水浇注，铝模冷却定型后不锈钢管镶在铝模中。通过此方法制作而成的EVA定型铝模，其缺点是：不锈钢的导热系数约为：20kcal/mh℃左右，导热慢。加硫时间及冷却时间较长，造成生产时间缩长，能源损耗高。
发明内容
本发明是为了解决上述不足，提供了一种EVA热成型模具及其制作工艺。
本发明的上述目的通过以下的技术方案来实现：一种EVA热成型模具，包括上铝模和下铝模，上铝模和下铝模铰接，且均设有拉手；所述上铝模设有凸起的模型，下铝模设有下凹的型腔，其特征在于：所述上铝模内部设有途经模型内部的上通道，所述下铝模内部设有途经型腔底部的下通道；所述上通道在上铝模内表面设有开口一，所述下通道在下铝模内表面设有与开口一位置相应且相通的开口二；所述下通道两侧分别设有蒸汽/水进口和蒸汽/水出口。
一种EVA热成型模具的制作工艺，包括以下步骤：
(1)制作下砂芯定型模：采用木制材料制下砂芯定型模的上模和下模，下砂芯定型模设有下砂芯型腔，下砂芯型腔设有两端开口一，下砂芯型腔上设有蒸汽/水进出型腔，下砂芯型腔上设有若干个下挤压口；通过挤压成型制得下砂芯；
(2)制作上砂芯定型模：采用木制材料制上砂芯定型模的上模和下模，上砂芯定型模设有上砂芯型腔，上砂芯型腔两端与下砂芯型腔两端开口一位置相应的开口二，通过挤压成型制得上砂芯；
(3)砂芯定位：通过铝块将制得的上、下砂芯固定在砂模上；
(4)EVA定型铝模铝水浇筑：在定位好上砂芯和下砂芯的砂模中分别浇筑铝水；待成型上铝模和下铝模冷却后，把上砂芯和下砂芯掏出，使上、下铝模内部形成相通的上通道和下通道，以及蒸汽/水进口和蒸汽/水出口，得上铝模和下铝模；
(5)模具加工完成。
本发明的定型铝模主要生产成品为：EVA中底与RB大底一体成型成品；管道与铝模直接接触，导热快；砂芯的形状可随EVA成品的大小变动，使蒸汽和冷水的温度更能直接影响EVA成品定型。
本发明与现有技术相比的优点是：
1、砂芯铸造的EVA定型铝模是良导体，导热系数约为：238kcal/mh℃左右，而不锈钢的导热系数约为：20kcal/mh℃左右；铝比不锈钢导热快为10倍。
2、砂芯铸造EVA定型铝模在生产成品中，加硫时间为380秒，冷却时间为360秒；埋不锈钢管的定型铝模在生产成品中，加硫时间为480秒，冷却时间为450秒；相比较，砂芯铸造的模具要比埋管的模具在生产中：加硫时间缩短100秒，冷却时间缩短90秒，总共缩短时间190秒；所以运用砂芯铸造EVA定型模生产时间缩短，能源损耗降低。
附图说明
图1是本发明的结构示意图。
图2是本发明中上铝模的结构示意图。
图3是本发明中下铝模的结构示意图。
图4是本发明中下砂芯定型模的结构示意图。
图5是本发明中上砂芯定型模的结构示意图。
图6是本发明中砂芯定位的结构示意图。
具体实施方式
下面结合附图对本发明进一步详述。
如图1、图2及图3所示，一种EVA热成型模具，包括上铝模4和下铝模5，上铝模4和下铝模5铰接，且均设有拉手8；所述上铝模4设有凸起的模型4-1，下铝模5设有下凹的型腔5-1，所述上铝模4内部设有途经模型4-1内部的上通道4-2，所述下铝模5内部设有途经型腔5-1底部的下通道5-2；所述上通道4-2在上铝模4内表面设有开口一4-3，所述下通道5-2在下铝模5内表面设有与开口一4-3位置相应且相通的开口二5-3；所述下通道5-2两侧分别设有蒸汽/水进口5-4和蒸汽/水出口5-5。
如图1至图6所示，一种EVA热成型模具制作工艺，包括以下步骤：
(1)制作下砂芯定型模1：如图4所示，采用木制材料制下砂芯定型模的上模1-1和下模1-2，下砂芯定型模设有下砂芯型腔1-3，下砂芯型腔1-3设有两端开口一1-4，下砂芯型腔1-3上设有蒸汽/水进出型腔1-5，下砂芯型腔1-3上设有若干个下挤压口1-6；通过挤压成型制得下砂芯；
(2)制作上砂芯定型模2：如图5所示，采用木制材料制上砂芯定型模的上模2-1和下模2-2，上砂芯定型模2设有上砂芯型腔2-3，上砂芯型腔2两端与下砂芯型腔1-3两端开口一1-4位置相应的开口二2-4，通过挤压成型制得上砂芯；
(3)砂芯定位：如图6所示，通过铝块3将制得的上、下砂芯固定在砂模上；
(4)EVA定型铝模铝水浇筑：如图1-3所示，在定位好上砂芯和下砂芯的砂模中分别浇筑铝水；待成型上铝模4和下铝模5冷却后，把上砂芯和下砂芯掏出，使上、下铝模内部形成相通的上通道4-2和下通道5-2，以及蒸汽/水进口5-4和蒸汽/水出口5-5，得上铝模4和下铝模5；
(5)模具加工完成。
本发明依靠砂芯定型模把砂挤压成型为管状砂芯实物，铸造时，把砂芯实物固定在EVA砂模成品区周围(尽量靠EVA成品区)进行铝水浇注，EVA定型铝模模具通过成型冷却后把砂芯掏掉，使铝模里面出现管道。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (2)

1.一种EVA热成型模具，包括上铝模和下铝模，上铝模和下铝模铰接，且均设有拉手；所述上铝模设有凸起的模型，下铝模设有下凹的型腔，其特征在于：所述上铝模内部设有途经模型内部的上通道，所述下铝模内部设有途经型腔底部的下通道；所述上通道在上铝模内表面设有开口一，所述下通道在下铝模内表面设有与开口一位置相应且相通的开口二；所述下通道两侧分别设有蒸汽/水进口和蒸汽/水出口。
2.一种EVA热成型模具制作工艺，其特征在于：包括以下步骤：
(1)制作下砂芯定型模：采用木制材料制下砂芯定型模的上模和下模，下砂芯定型模设有下砂芯型腔，下砂芯型腔设有两端开口一，下砂芯型腔上设有蒸汽/水进出型腔，下砂芯型腔上设有若干个下挤压口；通过挤压成型制得下砂芯；
(2)制作上砂芯定型模：采用木制材料制上砂芯定型模的上模和下模，上砂芯定型模设有上砂芯型腔，上砂芯型腔两端与下砂芯型腔两端开口一位置相应的开口二，通过挤压成型制得上砂芯；
(3)砂芯定位：通过铝块将制得的上、下砂芯固定在砂模上；
(4)EVA定型铝模铝水浇筑：在定位好上砂芯和下砂芯的砂模中分别浇筑铝水；待成型上铝模和下铝模冷却后，把上砂芯和下砂芯掏出，使上、下铝模内部形成相通的上通道和下通道，以及蒸汽/水进口和蒸汽/水出口，得上铝模和下铝模；
(5)模具加工完成。
CN201610761818.4A 2016-08-29 2016-08-29 一种eva热成型模具及其制作工艺 Pending CN106392006A (zh)

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US15/483,328 US20180056573A1 (en) 2016-08-29 2017-04-10 Thermoforming mold for eva and method for making the same

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* Cited by examiner, † Cited by third party
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CN106890974A (zh) * 2017-03-21 2017-06-27 珠海市润星泰电器有限公司 一种半固态压铸模具
CN107364082A (zh) * 2017-08-30 2017-11-21 联荣（清远）模具制造有限公司 一种橡胶射出模
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