KR100593415B1 - Shoe sole formed from multiple injections and its manufacturing method - Google Patents

Shoe sole formed from multiple injections and its manufacturing method Download PDF

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KR100593415B1
KR100593415B1 KR1020040019770A KR20040019770A KR100593415B1 KR 100593415 B1 KR100593415 B1 KR 100593415B1 KR 1020040019770 A KR1020040019770 A KR 1020040019770A KR 20040019770 A KR20040019770 A KR 20040019770A KR 100593415 B1 KR100593415 B1 KR 100593415B1
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South Korea
Prior art keywords
injection
mold
rubber
shoe sole
skeleton
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KR1020040019770A
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Korean (ko)
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KR20040034638A (en
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정점식
이상호
이상재
배성욱
장동석
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주식회사 우연
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Priority to KR1020040019770A priority Critical patent/KR100593415B1/en
Publication of KR20040034638A publication Critical patent/KR20040034638A/en
Priority to PCT/KR2005/000781 priority patent/WO2005090062A1/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00—Culture of aquatic animals
    • A01K61/50—Culture of aquatic animals of shellfish
    • A01K61/51—Culture of aquatic animals of shellfish of gastropods, e.g. abalones or turban snails
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1671—Making multilayered or multicoloured articles with an insert
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • 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
    • B29D35/142—Soles
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1676—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part
    • B29C2045/1678—Making multilayered or multicoloured articles using a soft material and a rigid material, e.g. making articles with a sealing part first moulding the soft material
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/14—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps
    • B29C43/146—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles in several steps for making multilayered articles
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • 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
    • B29K2221/00—Use of unspecified rubbers as reinforcement
    • B29K2221/003—Thermoplastic elastomers
    • 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

본 발명은 다중사출로 형성된 신발 밑창 및 그 제조방법에 관한 것으로, 상면에 접착재가 도포된 고무를 하금형(100)의 상면에 형성된 고무수용공간부(101)에 수용시키는 고무수용과정과; 상기 하금형(100) 상부면에 제1사출상금형(110)을 결합시키고, 고무와 제1사출상금형(110) 사이에 형성된 제1사출공간부(111) 내부로 액상의 TPU 수지를 주입시켜 사출시키는 제1사출과정과; 상기 제1차사출상금형(110)을 제거시키고 하금형(100)을 이동시키는 이동과정과; 이동된 하금형(10))의 상부에 제2사출상금형(120)을 결합시키고, 제2사출상금형(120)과 하금형(100) 사이에 형성된 제2사출공간부(120) 내부로 액상의 나일론 수지를 주입시켜 사출시키는 제2사출과정;을 포함하는 다중사출로 형성된 신발 밑창 제조방법을 기술적 요지로 한다. 이에 따라, 서로 다른 재료를 이용하여 밑창을 다중으로 사출성형시킴과 동시에 특정부위를 특정한 재료를 이용하여 사출시킴에 의해 디자인의 변형이 자유로우며, 기능화에 사용이 가능하다는 이점이 있다.The present invention relates to a shoe sole formed by a multi-injection and a method for manufacturing the same, a rubber accommodation process of receiving a rubber coated adhesive on the upper surface of the rubber receiving space portion 101 formed on the upper surface of the lower mold 100; Couple the first injection mold 110 to the upper surface of the lower mold 100, and injects a liquid TPU resin into the first injection space 111 formed between the rubber and the first injection mold (110) A first injection process of injection molding; A moving process of removing the first injection mold 100 and moving the lower mold 100; Couple the second injection mold 120 to the upper portion of the lower mold 10, and moved into the second injection space 120 formed between the second injection mold 120 and the lower mold 100 Method for manufacturing a shoe sole formed by multiple injection, including; a second injection process for injecting a liquid nylon resin injection. Accordingly, the injection molding is performed by using a different material, and at the same time, a specific part is injected by using a specific material, so that the deformation of the design is free and there is an advantage in that it can be used for functionalization.

다중 사출 특수화 금형 밑창 나일론Multi-Injection Specialized Mold Outsole Nylon

Description

다중사출로 형성된 신발 밑창 및 그 제조방법{sole using multiple injection molding and its manufacturing method}Shoe sole formed by multiple injection and its manufacturing method {sole using multiple injection molding and its manufacturing method}

도1 - 금형에서의 제조과정을 나타낸 단면도.1-A cross-sectional view showing the manufacturing process in the mold.

도2 - 금형과 신발밑창이 형성되는 형태를 나타낸 요부종단면도.Figure 2-Longitudinal sectional view showing the shape in which the mold and the sole of the shoe are formed.

도3 - 신발밑창의 사시도.3-a perspective view of the sole of a shoe.

도4 - 신발밑창의 저면을 나타내는 사시도.4-a perspective view showing the bottom of a shoe sole;

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

100 : 하금형 101 : 고무수용공간부100: lower die 101: rubber housing space

110 : 제1사출상금형 111 : 제1사출공간부110: first injection mold 111: the first injection space

120 : 제2사출상금형 121 : 제2사출공간부120: second injection mold 121: second injection space

200 : 골격부 201 : 관통공200: skeleton portion 201: through hole

210 : 바닥부 211 : 전면바닥부210: bottom 211: front bottom

212 : 측면바닥부 212a : 제1측면바닥부212: side bottom 212a: first side bottom

212b : 제2측면바닥부 213 : 후면바닥부212b: second side bottom portion 213: rear bottom portion

220 : 지면접촉부220: ground contact

본 발명은 신발 밑창의 제조방법에 관한 것으로, 더욱 상세하게는, 금형을 이용한 다중사출로 사이클화 등의 신발 밑창을 제조하는 다중 사출로 형성된 신발 밑창 및 그 제조방법에 관한 것이다. The present invention relates to a shoe sole manufacturing method, and more particularly, to a shoe sole formed by a multi-injection for producing a shoe sole, such as cycling by a multi-injection using a mold, and a manufacturing method thereof.

일반적으로 신발밑창의 경우에는 마모되는 정도 및 착용감을 감안하여 마모가 심하게 되는 부위 또는 특정부위에 경도를 달리하는 재질을 사용하여 밑창을 제작하였다. In general, in the case of shoe soles in consideration of the degree of wear and wearing comfort, soles were made using materials that vary the hardness of the areas or areas where wear is severe.

종래기술은 대한민국특허청 등록특허공보 등록번호 10-256180호에 이질재료영역을 갖는 사출발포물 및 그 제조방법이 소개되어 있다. 상기 종래기술은 이질재료영역을 갖는 사출발포물의 제조방법에 있어서, 수지재료와 발포제를 함유한 주발포재료를 마련하는 단계와, 상기 주발포재료와 가교반응가능한 수지재료를 포함하며 상기 주발포재료와 상이한 물성을 갖는 부재료삽입물을 성형하는 단계와, 발포성형용 금형의 캐비티내에 소정의 부재료캐비티영역을 형성하는 단계와, 상기 부재료캐비티영역내에 상기 고형의 부재료삽입물을 삽입하는 단계와, 상기 캐비티내에 액상의 주발포재료를 충전하는 단계와, 소정의 반응온도로 소정의 숙성시간동안 유지한 다음 상기 금형을 개방하여 발포시키는 단계를 포함하는 이질재료영역을 갖는 사출발포물의 제조방법이다. The prior art introduces an injection foam having a heterogeneous material region and a method of manufacturing the same in the Republic of Korea Patent Publication No. 10-256180. The prior art is a method for producing an injection foam having a heterogeneous material region, comprising the steps of: preparing a main foam material containing a resin material and a blowing agent; and a resin material capable of crosslinking reaction with the main foam material; Molding a submaterial insert having a physical property different from that of forming a mold, forming a predetermined submaterial material cavity area in a cavity of the foam molding die, inserting the solid submaterial material insert into the submaterial material area, and forming a liquid in the cavity The method of manufacturing an injection foam having a heterogeneous material region comprising the step of filling the main foaming material of, and maintaining the predetermined foaming time at a predetermined reaction temperature, and then opening and foaming the mold.

그러나 상기 종래기술은 주발포재료와 부발포재료는 동일한 수지재료로하며 가교반응이 가능한 재료만을 이용하여 단지 색상과 발포밀도만을 다르게 하는 방법으로 하여 발포사출 제조됨에 의해 고무 등에 비해 내마모성이 떨어진다는 문제점 이 있다. However, the prior art has a problem that the main foaming material and the sub-foaming material are made of the same resin material, and that the wear resistance is lower than that of rubber due to the production of foam injection by using only the material capable of crosslinking reaction and only the color and the foam density. There is this.

따라서, 본 발명은 상기한 종래기술들의 문제점을 해결하기 위해 안출된 것으로, 서로 다른 재료를 이용하여 밑창을 사출성형시키는 다중사출로 형성된 신발 밑창 및 그 제조방법을 제공하는 것을 목적으로 한다.Accordingly, an object of the present invention is to provide a shoe sole and a method of manufacturing the same, which are devised to solve the problems of the prior arts, and which are formed of multiple injection moldings using different materials.

그리고 신발 밑창의 특정부위를 특정한 재료를 이용하여 사출시킴에 의해 디자인의 변형이 자유로우며, 기능화에 사용이 가능한 다중사출로 형성된 신발 밑창 및 그 제조방법을 제공하는 것을 또한 목적으로 한다. And it is also an object of the present invention to provide a shoe sole formed by a multi-injection can be used for the functionalization of the design by injecting a specific portion of the shoe sole using a specific material and can be used for functionalization and its manufacturing method.

상기한 목적을 달성하기 위한 본 고안은, 상면에 접착재가 도포된 고무를 하금형의 상면에 형성된 고무수용공간부에 수용시키는 고무수용과정과; 상기 하금형 상부면에 제1사출상금형을 결합시키고, 고무와 제1사출상금형 사이에 형성된 제1사출공간부 내부로 액상의 TPU 수지를 주입시켜 사출시키는 제1사출과정과; 상기 제1차사출상금형을 제거시키고 하금형을 이동시키는 이동과정과; 이동된 하금형의 상부에 제2사출상금형을 결합시키고, 제2사출상금형과 하금형 사이에 형성된 제2사출공간부 내부로 액상의 나일론 수지를 주입시켜 사출시키는 제2사출과정;을 포함하는 다중사출로 형성된 신발 밑창 제조방법을 기술적 요지로 한다. The present invention for achieving the above object, the rubber receiving process for receiving the rubber coated with the adhesive on the upper surface of the rubber receiving space formed on the upper surface of the lower die; A first injection process of coupling the first injection mold to the lower die upper surface and injecting a liquid TPU resin into the first injection space formed between the rubber and the first injection mold; Removing the first injection mold and moving the lower mold; A second injection process of coupling a second injection mold to an upper portion of the moved lower mold, and injecting a liquid nylon resin into the second injection space formed between the second injection mold and the lower mold to inject the liquid; The shoe sole manufacturing method formed by multiple injections to be a technical gist.

그리고, 밑창의 골격이 되며, 중앙부에 상하로 관통된 관통공이 형성되고 액상의 나일론수지를 사출하여 형성된 골격부와; 상기 골격부의 하면에 형성되고, 액상의 TPU 수지를 사출하여 형성되며, 골격부를 지지시키는 바닥부와; 상기 바닥부 의 하면에 형성되며, 고무를 일정크기로 재단하여 상기 바닥부의 압출성형시 바닥부의 저면에 접착결합되어 형성되는 지면접촉부;를 포함하는 다중사출로 형성된 신발 밑창을 또한 기술적 요지로 한다.And, it becomes the skeleton of the sole, the through-hole is formed through the vertical portion in the center and the skeleton portion formed by injecting a liquid nylon resin; A bottom portion formed on the lower surface of the skeleton portion, formed by injecting a liquid TPU resin, and supporting the skeleton portion; It is formed on the bottom of the bottom, the rubber sole is formed to a certain size, the contact surface formed by adhesively bonded to the bottom of the bottom portion during extrusion molding of the bottom; shoe sole formed by multiple injection including a technical gist.

여기서, 상기 TPU 수지는 180℃~200℃로 가열용융되고, 나일론수지는 220℃~280℃로 가열용융되는 것이 바람직하다.Here, it is preferable that the TPU resin is heated and melted at 180 ° C to 200 ° C, and the nylon resin is melted at 220 ° C to 280 ° C.

그리고, 상기 바닥부는, 상기 골격부의 전면측에 형성된 전면바닥부와, 상기 골격부의 측면측에 형성된 측면바닥부와, 상기 골격부의 후면측에 형성된 후면바닥부로 구성되는 것이 바람직하다.Preferably, the bottom portion includes a front bottom portion formed on the front side of the skeleton portion, a side bottom portion formed on the side surface of the skeleton portion, and a rear bottom portion formed on the rear side of the skeleton portion.

이에 따라, 서로 다른 재료를 이용하여 밑창을 다중으로 사출성형시킴과 동시에 특정부위를 특정한 재료를 이용하여 사출시킴에 의해 디자인의 변형이 자유로우며, 기능화에 사용이 가능하다는 이점이 있다. Accordingly, the injection molding is performed by using a different material, and at the same time, a specific part is injected by using a specific material, so that the deformation of the design is free and there is an advantage in that it can be used for functionalization.

이하 첨부된 도면을 참조로 본 발명의 바람직한 일실시예를 상세히 설명하기로 한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도1은 금형에서의 제조과정을 나타낸 단면도이고, 도2는 금형과 신발밑창이 형성되는 형태를 나타낸 요부종단면도이고, 도3은 신발밑창의 사시도이며, 도4는 신발밑창의 저면을 나타내는 사시도이다. Figure 1 is a cross-sectional view showing the manufacturing process in the mold, Figure 2 is a longitudinal sectional view showing the shape of the mold and the sole is formed, Figure 3 is a perspective view of the sole of the shoe, Figure 4 is a perspective view showing the bottom of the shoe sole to be.

도시된 바와 같이, 본 발명에 따른 다중사출로 형성된 신발 밑창의 제조방법은 크게 고무수용과정과, 제1사출과정과, 제2사출과정으로 구성된다. As shown, the manufacturing method of a shoe sole formed by multiple injections according to the present invention is largely composed of a rubber receiving process, the first injection process, and the second injection process.

먼저 고무수용과정에 대해 설명한다. First, the rubber acceptance process is explained.

먼저 사용자는 판상으로 형성된 고무판을 소정크기로 재단한다. 그리고 재 단되는 고무판은 하금형(100)의 상면에 형성된 캐비티인 고무수용공간부(101)의 크기에 대응되게 절단되며, 상기 재단된 고무판이 신발밑창의 지면접촉부(220)에 해당된다. First, the user cuts a rubber plate formed in a plate shape to a predetermined size. And the rubber plate to be cut is cut to correspond to the size of the rubber receiving space 101 is a cavity formed on the upper surface of the lower die 100, the cut rubber plate corresponds to the ground contact portion 220 of the shoe sole.

이때 재단된 고무판의 상면에는 접착재가 도포된 상태에서 상기 고무수용공간부(101)에 수용된다. At this time, the upper surface of the cut rubber plate is accommodated in the rubber accommodating space 101 in a state where the adhesive material is applied.

다음은 제1사출과정이 진행되는 바, 상기 하금형(100)의 상부에 제1사출상금형(110)이 결합된 상태에서 진행된다. Next, the first injection process is performed, and the first injection mold 110 is coupled to the upper portion of the lower mold 100.

이때, 상기 하금형(100)에는 상기에서 설명한 바와 같이, 고무수용공간부(101)에 고무가 수용된 상태이며, 상기 하금형(100)이 상승하여 제1사출상금형(110)이 상기 하금형(100)의 상부에 결합되면, 상기 하금형(100)과 제1사출상금형(110) 사이에는 캐비티인 제1사출공간부(111)가 형성된다. At this time, the lower die 100, as described above, the rubber is accommodated in the rubber accommodating space 101, the lower die 100 is raised to the first injection mold 110 is the lower die When coupled to the upper portion of the 100, the first injection space portion 111 is formed between the lower mold 100 and the first injection mold 110 is a cavity.

그리고 상기 제1사출공간부(111) 내부로 180℃~220℃사이에서 용융된 TPU(thermo plastic urethane)용액이 각각의 게이트를 통하여 100㎏/㎠의 압력으로 주입되어 다수개로 분리된 바닥부(210)가 사출성형된다. And the first injection space 111 is injected into the thermoplastic urethane (TPU) solution melted between 180 ℃ ~ 220 ℃ at a pressure of 100 kg / ㎠ through each gate and separated into a plurality of bottom ( 210 is injection molded.

이때, 상기 원재료인 TPU는 건조된 다음 호퍼에 투입된 후, 180℃~220℃사이에서 용융되어 각각의 게이트를 통하여 상기 제1사출공간부(111) 내부로 주입되어 약 3분 정도의 숙성시간이 소요되어 바닥부(210)가 사출 성형된다. At this time, the raw material TPU is dried and then put into the hopper, melted between 180 ℃ ~ 220 ℃ is injected into the first injection space 111 through the respective gates, the maturation time of about 3 minutes The bottom portion 210 is injection molded.

이때, 상기 바닥부(210)는 후술하는 골격부(200)의 하면에 형성되는 바, 크게 전면바닥부(211)와, 측면바닥부(212)와, 후면바닥부(213) 각각으로 형성되며, 이는 후술하기로 한다.At this time, the bottom portion 210 is formed on the lower surface of the skeleton portion 200 to be described later, largely formed of the front bottom portion 211, the side bottom portion 212 and the rear bottom portion 213, respectively This will be described later.

다음은 이동과정이 진행되는 바, 상기 하금형(100)이 하측으로 유동하여 상기 제1사출상금형(110)으로 부터 하금형(100)이 분리된다. Next, the transfer process is performed, the lower mold 100 flows downward, and the lower mold 100 is separated from the first injection mold 100.

분리된 하금형(100)은 측면으로 자동이동된 후 상측으로 상승하여 제2사출상금형(120)과 결합된 후 제2사출과정이 진행된다. The separated lower mold 100 is automatically moved to the side and then rises to the upper side and is coupled to the second injection mold 120, and then the second injection process is performed.

상기 제1사출상금형(120)과 하금형(100)이 결합되면 상기 제2사출상금형(120)과 하금형(100) 사이에는 캐비티인 제2사출공간부(121)가 형성된다. When the first injection mold 120 and the lower mold 100 are combined, a second injection space 121, which is a cavity, is formed between the second injection mold 120 and the lower mold 100.

상기 제2사출공간부(121)는 신발의 골격을 이루는 골격부(200)가 형성되는 공간이며, 상기 제2사출공간부(121) 내부로 200℃~280℃에서 용융된 나일론 용액이 게이트를 통하여 주입되어 골격부(200)가 사출성형된다. The second injection space portion 121 is a space in which the skeleton portion 200 forming the skeleton of the shoe is formed, and the nylon solution melted at 200 ° C. to 280 ° C. into the second injection space portion 121 opens the gate. Is injected through the skeleton portion 200 is injection molded.

상기 제2사출과정은 원재료인 나일론을 건조시켜 호퍼에 투입한 후, 200℃~280℃에서 용융시켜 게이트를 통하여 약 50㎏/㎠의 압력으로 상기 제2사출공간부(121)로 용액을 주입시키고, 일정시간의 숙성시간이 소요되면 골격부(200)가 사출성형된다. In the second injection process, the nylon, which is a raw material, is dried and introduced into a hopper, and then melted at 200 ° C. to 280 ° C., and a solution is injected into the second injection space part 121 at a pressure of about 50 kg / cm 2 through a gate. When the aging time of a certain time is required, the skeleton portion 200 is injection molded.

상기의 과정이 과정이 완료된 후 하금형(100)과 제2사출상금형(120)을 분리시키면 신발밑창이 형성된다. After the above process is completed, the shoe mold is formed by separating the lower mold 100 and the second injection mold 120.

상기의 과정을 통하여 형성된 신발 밑창은 크게 골격부(200)와, 바닥부(210)와, 지면접촉부(220)로 구성된다. Shoe sole formed through the above process is largely composed of the skeleton portion 200, the bottom portion 210, the ground contact portion 220.

상기 골격부(200)는 신발밑창의 골격을 이루는 부분으로 니일론수지를 이용하여 사출시키며, 중앙부가 하측으로 일부 함몰된 형상으로 형성되며, 중앙부에 상 하로 관통된 관통공(201)이 형성된다. The skeleton part 200 is a part of the shoe sole, which is injected using a nylon resin, and a central part is formed in a shape recessed downwardly, and a through hole 201 penetrated up and down is formed in the center part. .

상기 바닥부(210)는 상기 골격부(200)를 일부지지시키는 부분으로 상기에서 설명한 바와 같이, TPU 수지를 이용하여 사출시키고, 상기 골격부(200)의 하면에 형성되며, 크게 전면바닥부(211)와, 측면바닥부(212)와, 후면바닥부(213)로 구성된다.The bottom portion 210 is a portion that partially supports the skeleton portion 200, as described above, is injected using a TPU resin, and is formed on the bottom surface of the skeleton portion 200, and has a large front bottom portion ( 211, the side bottom portion 212, and the rear bottom portion 213.

상기 전면바닥부(211)는 상기 골격부(200)의 하면 전면측에서 상측으로 소정돌출된 형태로 형성된다. The front bottom portion 211 is formed in a predetermined protrusion form from the front side of the lower surface of the skeleton portion 200 to the upper side.

그리고 상기 측면 바닥부(212)는 상기 골격부(200)의 하면 양측면에 각각 2조가 상호간에 분리된 형태로 제1측면바닥부(212a)와 제2측면바닥부(212b)로 구성된다. The side bottom portion 212 includes a first side bottom portion 212a and a second side bottom portion 212b in a form in which two sets are separated from each other on both side surfaces of the lower surface of the skeleton portion 200.

상기 제1측면바닥부(212a)는 상기 골격부(200)의 하면 양측면측에서 상측으로 소정돌출된 형태로 한조가 형성되며 상기 제1측면바닥부(212a)와 소정이격되어 후측에 제2측면바닥부(212b)가 형성된다. 상기 제2측면바닥부(212b)는 상기 골격부(200)의 양측면 하면에 한조가 형성되어 상기 골격부(200)의 하면에만 형성된다. The first side bottom portion 212a is formed in a shape in which a predetermined protrusion protrudes upward from both side surfaces of the lower surface of the skeletal portion 200 and is spaced apart from the first side bottom portion 212a by a second side surface at a rear side thereof. The bottom part 212b is formed. The second side bottom portion 212b has a pair formed on both bottom surfaces of the skeletal portion 200 and is formed only on the bottom surface of the skeletal portion 200.

상기 후면 바닥부(213)는 상기 골격부(200)의 후면 저면부 양측면에 한조가 각각 형성되며, 상기 골격부(200)의 후면측 측면 바닥에 형성됨과 동시에 일부가 상기 골격부(200)의 측면측을 통하여 상측으로 돌출되게 형성되어 신발착용 시 골격부(200)를 지지함과 동시에 발을 지지하게 된다. The rear bottom portion 213 is formed on each of both sides of the rear bottom surface of the skeleton portion 200, and is formed on the bottom side of the rear side of the skeleton portion 200 and at the same time a portion of the skeleton portion 200 It is formed to protrude upward through the side side to support the foot and at the same time to support the skeleton portion 200 when wearing shoes.

상기 지면접촉부(220)는 고무재질로 형성되며, 상기 바닥부(210)의 저면에 형성되며, 상기 바닥부(210)의 사출시 바닥부(210)의 저면에 접착형성된다. 상기 지면접촉부(220)는 상기 전면바닥부(211)를 제외한 바닥부(210)의 저면에 형성된다. 그리고, 필요에 따라 상기 바닥부(210) 중 상기 제2측면바닥부의(212b) 저면에는 형성하지 않아도 무방하며 본 발명의 범주에 속한다. The ground contact portion 220 is formed of a rubber material, is formed on the bottom of the bottom portion 210, the adhesive is formed on the bottom of the bottom portion 210 when the bottom portion 210 is injected. The ground contact portion 220 is formed on the bottom surface of the bottom portion 210 except for the front bottom portion 211. And, if necessary, the bottom surface of the second side bottom portion 212b of the bottom portion 210 may not be formed and belongs to the scope of the present invention.

따라서, 상기의 밑창을 싸이클화 등의 특수화 용도로 사용이 가능하다.Therefore, the outsole can be used for specialized purposes such as cycling.

상기의 구성에 의한 본 고안은, 서로 다른 재료를 이용하여 밑창을 사출성형시키는 다중사출로 형성되어 특별한 기능을 요구하는 특수화로 적합하다는 효과가 있다. The present invention by the above configuration is formed by multiple injection molding the sole using different materials, there is an effect that it is suitable for specialization that requires a special function.

그리고 신발 밑창의 특정부위를 특정한 재료를 이용하여 사출시킴에 의해 디자인의 변형이 자유로우며, 특수화 겸용 일반화로의 사용도 가능하다는 효과가 또한 있다. And by injecting a specific part of the shoe sole using a specific material, the deformation of the design is free, there is also an effect that can be used as a generalized combined use.

Claims (4)

상면에 접착재가 도포된 고무를 하금형의 상면에 형성된 고무수용공간부에 수용시키는 고무수용과정과;A rubber accommodating process of accommodating a rubber coated adhesive material on an upper surface of the rubber accommodating space formed on the upper surface of the lower die; 상기 하금형 상부면에 제1사출상금형을 결합시키고, 고무와 제1사출상금형 사이에 형성된 제1사출공간부 내부로 액상의 TPU 수지를 주입시켜 사출시키는 제1사출과정과;A first injection process of coupling the first injection mold to the lower die upper surface and injecting a liquid TPU resin into the first injection space formed between the rubber and the first injection mold; 상기 제1차사출상금형을 제거시키고 하금형을 이동시키는 이동과정과;Removing the first injection mold and moving the lower mold; 이동된 하금형의 상부에 제2사출상금형을 결합시키고, 제2사출상금형과 하금형 사이에 형성된 제2사출공간부 내부로 액상의 나일론 수지를 주입시켜 사출시키는 제2사출과정;을 포함하는 다중사출로 형성된 신발 밑창 제조방법.A second injection process of coupling a second injection mold to an upper portion of the moved lower mold, and injecting a liquid nylon resin into the second injection space formed between the second injection mold and the lower mold to inject the liquid; Shoe sole manufacturing method formed by multiple injection. 제1항에 있어서, 상기 TPU 수지는 180℃~200℃로 가열용융되고, 나일론수지는 220℃~280℃로 가열용융됨을 특징으로 하는 다중사출로 형성된 신발 밑창 제조방법The method of claim 1, wherein the TPU resin is heated and melted at 180 ° C ~ 200 ° C, nylon resin is heat-melted at 220 ° C ~ 280 ° C 밑창의 골격이 되며, 중앙부에 상하로 관통된 관통공이 형성되고 액상의 나일론수지를 사출하여 형성된 골격부와;A skeleton portion which is a skeleton of the sole and is formed by injecting a through-hole penetrated vertically in the center portion and injecting a liquid nylon resin; 상기 골격부의 하면에 형성되고, 액상의 TPU 수지를 사출하여 형성되며, 골격부를 지지시키는 바닥부와;A bottom portion formed on the lower surface of the skeleton portion, formed by injecting a liquid TPU resin, and supporting the skeleton portion; 상기 바닥부의 하면에 형성되며, 고무를 일정크기로 재단하여 상기 바닥부의 압출성형시 바닥부의 저면에 접착결합되어 형성되는 지면접촉부;를 포함하는 다중사출로 형성된 신발 밑창.Is formed on the bottom of the bottom, the rubber sole to a predetermined size when the extrusion molding the bottom contact portion formed by adhesive bonding to the bottom of the bottom portion; shoe sole formed by multiple injections comprising a. 제3항에 있어서, 상기 바닥부는, The method of claim 3, wherein the bottom portion, 상기 골격부의 전면측에 형성된 전면바닥부와, 상기 골격부의 측면측에 형성된 측면바닥부와, 상기 골격부의 후면측에 형성된 후면바닥부로 구성됨을 특징으로 하는 다중사출로 형성된 신발 밑창.Shoe sole formed by multiple injection, characterized in that consisting of a front bottom portion formed on the front side of the skeleton portion, a side bottom portion formed on the side of the skeleton portion, and a rear bottom portion formed on the rear side of the skeleton portion.
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