KR19990001753U - Air Exhaust Structure of Non-Trimming Tire Mold - Google Patents

Air Exhaust Structure of Non-Trimming Tire Mold Download PDF

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Publication number
KR19990001753U
KR19990001753U KR2019970015239U KR19970015239U KR19990001753U KR 19990001753 U KR19990001753 U KR 19990001753U KR 2019970015239 U KR2019970015239 U KR 2019970015239U KR 19970015239 U KR19970015239 U KR 19970015239U KR 19990001753 U KR19990001753 U KR 19990001753U
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KR
South Korea
Prior art keywords
mold piece
mold
tire
trimming
piece
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Application number
KR2019970015239U
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Korean (ko)
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KR200167716Y1 (en
Inventor
이병진
김형순
김용섭
Original Assignee
홍건희
한국타이어제조 주식회사
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Priority to KR2019970015239U priority Critical patent/KR200167716Y1/en
Publication of KR19990001753U publication Critical patent/KR19990001753U/en
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Publication of KR200167716Y1 publication Critical patent/KR200167716Y1/en

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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
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/02Solid tyres ; Moulds therefor
    • 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
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607Constructional features of the moulds
    • B29D2030/0616Surface structure of the mould, e.g. roughness, arrangement of slits, grooves or channels
    • 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
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/0601Vulcanising tyres; Vulcanising presses for tyres
    • B29D30/0606Vulcanising moulds not integral with vulcanising presses
    • B29D2030/0607Constructional features of the moulds
    • B29D2030/0617Venting devices, e.g. vent plugs or inserts

Abstract

본 고안은 논트림잉 타이어용 몰드의 공기배출 구조에 관한 것으로, 논트림잉 타이어용 몰드를 구성하는 각 몰드피스(1)를 은박지(4)를 이용하여 봉합하고, 몰드피스가 측면부를 다수개소 절개된 후, 도금처리 되므로 상기 몰드피스(1)의 측면으로 도금부(2a)가 다수개소로 구비되어지고, 이 도금부(2a)가 다수개소 구비된 몰드피스(1)의 접촉면(2)을 매개로 각 몰드피스(1)가 결합되므로, 각 몰드피스(1)의 접촉면(2)상에 상기 도금부(2a)에 의해 기공이 형성되며, 이 기공을 매개로 가류공정시 타이어를 손상시키는 공기를 가류기의 외부로 배출시키도록 된 것이다.The present invention relates to an air discharge structure of a mold for a non-trimming tire, wherein each mold piece 1 constituting the non-trimming tire mold is sealed using a silver foil 4, and the mold piece has a plurality of side portions. After being cut and plated, the contact surface 2 of the mold piece 1 is provided with a plurality of plating portions 2a on the side surface of the mold piece 1, and the plating portions 2a are provided with a plurality of portions. Since each mold piece 1 is coupled to each other, pores are formed on the contact surface 2 of each mold piece 1 by the plating part 2a, and the tires are damaged during the vulcanization process. To let the air out of the vulcanizer.

Description

논트림잉 타이어용 몰드의 공기배출 구조Air Exhaust Structure of Non-Trimming Tire Mold

본 고안은 논트림잉 타이어용 몰드의 공기배출 구조에 관한 것으로, 특히 몰드를 이루는 각 몰드피스(mold peace)의 결합면의 일정부위가 일정두께로 도금처리되므로 각 몰드피스의 결합면 사이에 단차가 형성되어 타이어의 가류공정 중 발생되는 압축공기가 결합면을 통해 배출되도록 된 논트림잉 타이어용 몰드의 공기배출 구조에 관한 것이다.The present invention relates to an air discharge structure of a mold for a non-trimming tire, and in particular, because a certain portion of the coupling surface of each mold piece constituting the mold is plated to a certain thickness, a step between the coupling surfaces of each mold piece is fixed. The present invention relates to an air discharge structure of a mold for a non-trimming tire, in which compressed air generated during a vulcanization process of a tire is formed through the coupling surface is formed.

일반적으로 각각의 공정을 통해 제작된 타이어 구성 반제품들은 타이어의 사양에 따라 각 반제품을 조립·성형하는 성형공정을 통해 그린타이어로 제작되고, 이 그린타이어는 가류기에 의해 소정시간 압력 및 고온이 가해지고, 이 과정중 그린타이어 내의 화학약품의 작용에 의해 탄성고무로 되는 가류공정을 거쳐 완성된 타이어를 얻게 된다.In general, the semi-finished tire components manufactured by each process are manufactured in green tires through a molding process of assembling and molding each semi-finished product according to the specifications of the tire, and the green tires are subjected to a predetermined time pressure and high temperature by a vulcanizer. In this process, the finished tire is obtained through a vulcanization process of elastic rubber by the action of chemicals in the green tire.

이때, 상기 그린타이어의 표면은 가류기의 표면과 접합되며 상기 가류기의 내부 표면에 부착된 몰드의 형상이 성형되어진다.At this time, the surface of the green tire is bonded to the surface of the vulcanizer and the shape of the mold attached to the inner surface of the vulcanizer is molded.

여기서, 상기와 같이 가류과정은 고온 고압의 가류과정 중 상기 가류기의 내부에 잔존하는 공기에 의해 가류기 내부의 몰드와 그린타이어와의 접촉면이 불완전하게 접합하는 현상 즉, 베어(bare) 현상이 발생되므로, 완성된 타이어의 표면이 불완전 가공되는 현상이 발생된다.Here, the vulcanization process is a phenomenon in which the contact surface between the mold and the green tire inside the vulcanizer is incompletely bonded by the air remaining in the vulcanizer during the vulcanization process at high temperature and high pressure. As a result, a phenomenon occurs that the surface of the finished tire is incompletely processed.

이와 같은 베어현상을 방지하기 위하여 상기 타이어 몰드를 구성하는 몰드피스의 측면으로 연삭기 등을 이용하여 0.03~0.05mm의 단차를 주어 각 몰드피스의 접합면에 일정크기의 틈새를 유지하므로 공기를 배출하는 구조나, 각 몰드피스의 측면에 소립자 분체를 부착시켜 접하는 몰드피스 사이에 기공을 형성시키므로 이 기공을 통해 공기를 방출하는 구조가 이용되어 진다.In order to prevent such a bear phenomenon, by giving a step of 0.03 ~ 0.05mm to the side of the mold piece constituting the tire mold by using a grinding machine or the like to maintain a certain size of gap in the joint surface of each mold piece to discharge the air Since the pores are formed between the structure or the mold pieces which are in contact with each other by attaching the small particle powder to the side surface of each mold piece, a structure that releases air through the pores is used.

그러나 상기와 같이 그린타이어의 가류과정 중 발생되는 베어현상을 방지하기 위하여 연삭기를 이용하여 각 몰드피스의 접촉면으로 틈새를 형성하는 구조는 다이케스팅 표면 또는 컷팅표면이 평면인 경우에는 가공이 용이하나 곡면 또는 여러면의 경사면일 경우에는 미세한 연삭을 위한 고가의 연삭기와 지그 등을 갖추어야 되며, 각 몰드피스의 측면에 소립자 분체를 부착시켜 몰드피스 사이에 기공을 형성시키므로 공기를 방출시키도록 된 것은, 타이어의 가류과정중 발생되는 가스에 의해 상기 기공이 막히므로 이 기공을 청소하기가 어려운 문제점이 있었다.However, in order to prevent the bear phenomenon generated during the vulcanization process of the green tire as described above, the structure of forming a gap with the contact surface of each mold piece using a grinding machine is easy to process when the die casting surface or the cutting surface is flat, but the curved surface or In case of inclined surfaces of various surfaces, an expensive grinder and jig for fine grinding should be provided, and small particles are attached to the sides of each mold piece to form pores between the mold pieces, thereby releasing air. Since the pores were blocked by the gas generated during the vulcanization process, it was difficult to clean the pores.

이에 본 고안은 상기와 같은 문제점을 해소하기 위해 안출된 것으로서, 상기 논트림잉 타이어용 몰드를 구성하는 각 몰드피스를 은박지를 이용하여 봉합하고, 몰드피스의 측면의 다수개소를 개방한 후, 도금작업되므로 상기 몰드피스의 측면으로 도금부가 다수개소로 구비되며, 이에 따라 각 몰드피스가 결합될시는 각 몰드피스의 접촉면상에 상기 도금부에 형성된 단차를 매개로 공기가 외부로 배출되므로 그 제조공정이 단순화되고 제조비용이 절감된 논트림잉 타이어용 몰드의 공기배출 구조를 제공함에 목적이 있다.In order to solve the problems as described above, the present invention is designed to seal each mold piece constituting the mold for the non-trimming tire using silver foil, and then open a plurality of portions of the side surfaces of the mold piece, and then plate. Since the work is provided with a plurality of plating portions on the side of the mold piece, when the respective mold pieces are combined, the air is discharged to the outside through the step formed in the plating portion on the contact surface of each mold piece is manufactured It is an object of the present invention to provide an air bleeding structure of a mold for a non-trimming tire, which simplifies the process and reduces manufacturing costs.

도 1은 논트림잉 타이어용 몰드피스를 도시한 사시도,1 is a perspective view showing a mold piece for a non-trimming tire,

도 2는 논트림잉 타이어용 몰드피스가 은박지로 싸여진 상태를 도시한 사시도,2 is a perspective view showing a state in which a mold piece for a non-trimming tire is wrapped with silver foil;

도 3은 도 2에 도시된 은박지로 싸여진 논트림잉 타이어용 몰드피스의 측면부가 다수개소 절개된 상태를 도시한 사시도,3 is a perspective view illustrating a state in which a plurality of side portions of a mold piece for a non-trimming tire wrapped with silver foil shown in FIG. 2 are cut away;

도 4는 본 고안에 따라 도금처리된 몰드피스를 도시한 사시도,4 is a perspective view showing a mold piece plated according to the present invention;

도 5는 본 고안에 따라 도금처리된 몰드피스가 접촉면을 매개로 결합되어 구성된 몰드를 도시한 부분사시도이다.5 is a partial perspective view showing a mold formed by coupling a mold piece plated according to the present invention through a contact surface.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1:몰드피스2:접촉면1: Mold piece 2: Contact surface

2a:도금부3:성형부2a: plating part 3: molding part

4:은박지4a:개구부4: Tinfoil 4a: Opening

상기와 같은 목적을 달성하기 위하여 본 고안은 논트림잉 타이어용 몰드의 각 몰드피스를 은박지로 감싸고, 은박지로 감싸진 각 몰드피스의 측면부의 다수개소를 직사각형 형상으로 절개한 후 도금액이 용해된 용기에 주입시킨다.In order to achieve the above object, the present invention wraps each mold piece of a mold for a non-trimming tire with silver foil, and cuts a plurality of portions of the side portions of each mold piece wrapped with silver foil into a rectangular shape, and then a plating solution is dissolved therein. Inject in.

일정시간 경과후 용기에서 상기 은박지에 감싸인 몰드피스를 꺼낸 후 은박지를 개방하면, 상기 은박지가 절개된 몰드피스의 측면부 다수개소로 측면부와 단차를 갖는 도금부가 형성된다.After a certain period of time, the mold piece wrapped in the silver foil paper is removed from the container, and when the silver foil paper is opened, a plating portion having a step portion and a side portion is formed at a plurality of side portions of the mold piece in which the silver foil paper is cut.

따라서, 상기 도금부가 형성된 몰드피스의 측면부를 매개로 각 몰드피스가 결합되면, 상기 도금부에 의해 각 몰드피스의 접촉면으로 공기를 유출시키는 기공이 형성된다.Therefore, when each mold piece is coupled through the side portion of the mold piece on which the plating part is formed, pores are formed to allow air to flow out into the contact surface of each mold piece by the plating part.

이에 따라, 타이어의 가류공정시 상기 각 몰드피스의 접촉면에 형성된 기공으로 공기가 배출되므로 타이어 표면의 손상이 방지되어진다.Accordingly, air is discharged into the pores formed on the contact surfaces of the respective mold pieces during the curing process of the tire, thereby preventing damage to the tire surface.

이하 본 고안을 첨부된 예시도면을 참조로 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 논트림잉 타이어용 몰드피스를 도시한 사시도로, 몰드피스(1)의 측면부로 각 몰드피스(1)와 접촉되는 면인 접촉면(2)과, 표면으로 타이어의 트리드 형상 및 마크 등이 성형된 성형부(3)가 구성된다.1 is a perspective view showing a mold piece for a non-trimming tire, including a contact surface 2 which is a surface which is in contact with each mold piece 1 by a side portion of the mold piece 1, and a tritized shape and a mark of the tire on the surface thereof. This molded shaping part 3 is constituted.

여기서, 도 2는 논트림잉 타이어용 몰드피스가 은박지에 싸여진 상태를 도시한 사시도로, 상기 몰드피스(1)의 내부로 불순물이 유입되지 않도록 은박지(4)를 이용하여 몰드피스(1)를 밀봉하도록 된다.2 is a perspective view showing a state in which a mold piece for a non-trimming tire is wrapped in silver foil, and the mold piece 1 is formed by using the silver foil 4 so that impurities do not flow into the mold piece 1. To seal.

또한, 도 3은 도 2에 도시된 은박지로 싸여진 논트림잉 타이어용 몰드피스의 측면부가 다수개소 절개된 상태를 도시한 사시도로, 상기 몰드피스(1)를 감싼 은박지(4)와, 몰드피스의 측면부인 접촉면을 감싼 은박지가 다수개소 절개되어 형성된 절개부(4a)가 구성된다.3 is a perspective view showing a state in which a plurality of side portions of a mold piece for a non-trimming tire wrapped with a silver foil shown in FIG. 2 are cut out, and a silver foil 4 surrounding the mold piece 1 and a mold piece. A cutout portion 4a formed by cutting a plurality of tinfoil wrapped around the contact surface, which is a side portion thereof, is configured.

여기서, 상기 몰드피스(1)의 측면부를 감싼 은박지(4)가 다수개소 절개된 몰드피스(1)는 크롬이 용해된 용기로 넣어지도록 된다.Here, the mold piece 1 in which a plurality of silver foils 4 wrapped around the side surface of the mold piece 1 is cut is put into a container in which chromium is dissolved.

또한, 상기 용기에서 은박지(4)에 감싸인 몰드피스(1)를 꺼낸 후 은박지(4)를 개방하면, 도 4에 도시된 바와 같이 몰드피스(1)의 접촉면(2)상에 표면과 단차를 갖는 크롬 도금부(2a)가 다수개소 형성된다.In addition, when the mold piece 1 wrapped in the foil paper 4 is removed from the container and the foil paper 4 is opened, the surface and the step on the contact surface 2 of the mold piece 1 are as shown in FIG. 4. The chromium plating part 2a which has a number is formed in many places.

따라서, 상기 크롬 도금부(2a)가 형성된 접촉면(2)을 매개로 각 몰드피스(2)를 결합한 후 가류기에 몰드를 설치하면 상기 접촉면상으로 일정크기의 기공이 형성된다.Therefore, when each mold piece 2 is coupled through the contact surface 2 on which the chromium plating portion 2a is formed, a mold is installed in the vulcanizer to form pores having a predetermined size on the contact surface.

한편, 상기 기공은 대략 0.03~0.05mm의 높이를 가지며 형성된다.On the other hand, the pores are formed having a height of approximately 0.03 ~ 0.05mm.

이에 따라, 타이어의 가류작업시 발생되는 공기는 상기 기공을 통해 외부로 배출되므로, 베어현상에 따른 타이어 표면의 손상이 방지되어 진다.Accordingly, air generated during the vulcanization operation of the tire is discharged to the outside through the pores, thereby preventing damage to the tire surface due to the bare phenomenon.

이상에서 설명한 바와 같이 본 고안에 의하면, 상기 논트림잉 타이어용 몰드를 구성하는 각 몰드피스를 은박지를 이용하여 봉합하고, 몰드피스의 측면의 다수개소를 개바한 후, 도금작업 되므로 상기 몰드피스의 측면으로 도금부가 다수개소로 구비되어지므로 각 몰드피스가 결합될시는 각 몰드피스의 접촉면상에 상기 도금부에 의해 형성된 기공을 매개로 공기가 외부로 배출되므로, 베어현상에 따른 타이어표면의 손상이 방지되는 한편, 몰드피스의 제조공정이 단순화되고 제조비용이 절감되는 효과가 있다.As described above, according to the present invention, each mold piece constituting the mold for the non-trimming tire is sealed using silver foil, and after opening a plurality of places on the side of the mold piece, the plating is performed. Since a plurality of plating parts are provided on the side surface, when each mold piece is joined, air is discharged to the outside through the pores formed by the plating part on the contact surface of each mold piece, so that the tire surface is damaged due to a bare phenomenon. While this is prevented, the manufacturing process of the mold piece is simplified and the manufacturing cost is reduced.

Claims (1)

논트림잉 타이어용 몰드를 구성하는 각 몰드피스(1)가 은박지(4)에 의해 봉합되고, 몰드피스(1)의 측면의 다수개소가 절개되어 사각형 형상으로 개방되며, 도금처리되어 상기 몰드피스(1)의 측면인 접촉면(2)으로 일정두께의 도금부(2a)가 다수개소 형성되고, 각 몰드피스(1)가 상기 접촉면(2)을 매개로 결합되므로, 각 몰드피스(1) 사이로 공기가 배출되는 기공이 형성되도록 된 논트림잉 타이어용 몰드의 공기배출 구조.Each mold piece 1 constituting the mold for the non-trimming tire is sealed by the silver foil 4, and a plurality of portions of the side surfaces of the mold piece 1 are cut and opened in a rectangular shape and plated to form the mold piece. Since a plurality of plated portions 2a having a predetermined thickness are formed on the contact surface 2, which is a side surface of (1), and each mold piece 1 is coupled through the contact surface 2, between each mold piece 1. Air exhaust structure of the mold for non-trimming tires to form pores through which air is discharged.
KR2019970015239U 1997-06-21 1997-06-21 The ventilation structure for the mold of nontrimming tire KR200167716Y1 (en)

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KR2019970015239U KR200167716Y1 (en) 1997-06-21 1997-06-21 The ventilation structure for the mold of nontrimming tire

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