KR100198482B1 - Bead assembly manufacturing method of the tyre - Google Patents

Bead assembly manufacturing method of the tyre Download PDF

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Publication number
KR100198482B1
KR100198482B1 KR1019970003432A KR19970003432A KR100198482B1 KR 100198482 B1 KR100198482 B1 KR 100198482B1 KR 1019970003432 A KR1019970003432 A KR 1019970003432A KR 19970003432 A KR19970003432 A KR 19970003432A KR 100198482 B1 KR100198482 B1 KR 100198482B1
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South Korea
Prior art keywords
bead
rubber
mold
upper mold
bead assembly
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KR1019970003432A
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Korean (ko)
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KR19980067415A (en
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황인현
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신형인
금호타이어주식회사
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    • 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
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/48—Bead-rings or bead-cores; Treatment thereof prior to building the tyre
    • 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
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)

Abstract

본 발명은 공기입 타이어용 비드 어셈블리의 제조방법에 관한 것으로서, 비드 어셈블리의 제조시 겹침이나 끝부분의 이중겹침에 의해 비드랩에 요철이 생성되어 에이펙스(APEX)와의 접합시 불량제품이 발생하거나 완제품 타이어의 품질이 저하되는 것을 방지하기 위해, 노즐(3B)을 통해 일정량의 반죽된 고무(R)를 가열되어 있는 하금형(2)에 투입하고, 이송장치(5)의 자석(6)을 통해 집어진 비드(7)를 상기 하금형(2)에 투입하여 상기 비드(7)의 하부를 상기 고무(R)를 투입하여 초기 응고시켜 고정시킴과 동시에 코팅하는 공정 및 상기 비드(7)의 하부가 고정된 하금형(2)에 상금형(1)을 조립한 후 노즐(3A)을 통해 믹싱된 고무(R)가 상금형(1)으로 투입되어 벤트홀(4)에 의해 상금형(1)의 내부를 균일하게 채워 비드(7)의 상부를 코팅하는 공정을 포함하는 것을 특징으로 하는 공기입 타이어용 비드 어셈블리의 제조방법을 제공한다.The present invention relates to a method of manufacturing a bead assembly for pneumatic tires, unevenness is generated in the bead wrap due to the overlap or double overlap of the end during the manufacture of the bead assembly to produce a defective product or when the product is bonded to the APEX (APEX) In order to prevent the quality of the tire from deteriorating, a predetermined amount of kneaded rubber R is introduced into the heated lower mold 2 through the nozzle 3B, and the magnet 6 of the transfer device 5 is introduced. The collected beads (7) are put into the lower mold (2), and the lower part of the beads (7) is initially solidified by adding the rubber (R) to fix and simultaneously coat the lower part of the beads (7). After assembling the upper mold (1) to the lower mold (2) to which is fixed, the rubber (R) mixed through the nozzle (3A) is introduced into the upper mold (1) and the upper mold (1) by the vent hole (4). It is characterized in that it comprises a step of coating the top of the bead (7) by uniformly filling the inside of the) Provided is a method of manufacturing a bead assembly for a pneumatic tire.

Description

공기입 타이어용 비드 어셈블리의 제조방법Manufacturing method of bead assembly for pneumatic tire

제1도 (a),(b)는 비드의 정면도 및 평면도.1 (a) and (b) are front and plan views of the beads.

제2도 (a),(b)는 비드랩의 정면도 및 평면도.2 (a) and 2 (b) are front and plan views of the bead wrap.

제3도 (a),(b)는 종래 비드의 어셈블리의 정면도 및 평면도.3 (a) and 3 (b) are a front view and a plan view of an assembly of a conventional bead.

제4도 (a),(b) 및 (c)는 본 발명의 일실시예를 설명하기 위한 설명도로서,4 (a), 4 (b) and 4 (c) are explanatory diagrams for describing an embodiment of the present invention.

(a)는 상금형의 정면도.(a) is a front view of a prize die.

(b)는 이송장치의 측면도.(b) is a side view of the feeder.

(c)는 하금형의 측면도.(c) is a side view of the lower mold.

제5도는 본 발명에 따른 비드 어셈블리의 종단면도이다.5 is a longitudinal sectional view of the bead assembly according to the invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 상금형 2 : 하금형1: upper mold 2: lower mold

3A,3B : 노즐 4 : 벤트홀3A, 3B: Nozzle 4: Vent Hole

5 : 이송장치 6 : 자석5: transfer device 6: magnet

7 : 비드 8 : 비드랩7: Bead 8: Bead Wrap

9 : 비드랩층 R : 고무9: bead wrap layer R: rubber

본 발명은 공기입 타이어용 비드 어셈블리의 제조방법에 관한 것으로서, 특히 금형을 사용하여 비드 둘레에 비드랩층을 형성함으로써 비드 어셈블리에 요철 및 겹침불량이 발생되는 것을 방지하는 공기입 타이어용 비드 어셈블리의 제조방법에 관한 것이다.The present invention relates to a method of manufacturing a bead assembly for pneumatic tires, and in particular, to produce a bead assembly for pneumatic tires to prevent irregularities and overlapping defects in the bead assembly by forming a bead wrap layer around the beads using a mold. It is about a method.

종래, 비드 어셈블리의 제조방법은, 강선 둘레에 고무를 코팅한 비드 와이어를 비드 드럼에서 원형으로 수회 감아 비드를 생산하는 비드공정과, 이렇게 생산된 비드를 운송로를 따라 운반하여 로보트로 상기 비드 둘레에 비드랩을 1-2회 정도 감싸는 비드랩공정을 포함하고 있다.Conventionally, a method of manufacturing a bead assembly, a bead process for producing a bead by winding a bead wire coated with a rubber around the steel wire in a bead drum several times in a circle, and transporting the beads thus produced along a transport path to the robot around the bead It includes a bead wrap process that wraps the bead wrap 1-2 times.

그러나, 제3도 (a),(b)에 도시된 바와 같이, 종래의 비드 어셈블리의 제조방법에 의하면, 로보트로 비드(7) 둘레를 비드랩(8)으로 감쌀 때, 겹침이나 끝부분의 이중겹침에 의해 비드 어셈블리에 요철이 생성되어 에이펙스(APEX)와의 접합시 불량제품이 발생하거나 완제품 타이어의 품질이 저하된다는 문제점이 있었다.However, as shown in Figs. 3 (a) and 3 (b), according to the manufacturing method of the conventional bead assembly, when the robot is wrapped around the beads 7 with the bead wrap 8, Unevenness is generated in the bead assembly due to the double overlap, and there is a problem in that a defective product is generated or the quality of the finished tire is deteriorated when the APEX is bonded.

따라서, 본 발명의 목적은, 상하로 분리될 수 있는 금형 및 이송장치를 사용하여 비드 둘레에 반죽된 고무를 코팅함으로써 비드 어셈블리를 제조할 수 있는 공기입 타이어용 비드 어셈블리의 제조방법을 제공하는데 있다.Accordingly, an object of the present invention is to provide a method for manufacturing a bead assembly for a pneumatic tire which can produce a bead assembly by coating a kneaded rubber around the bead using a mold and a conveying device which can be separated up and down. .

이하, 첨부된 도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

제1도 (a),(b)는 비드의 정면도 및 평면이고, 제2도 (a),(b)는 비드랩의 정면도 및 평면도이며, 제3도 (a),(b)는 종래 비드의 어셈블리의 정면도 및 평면도이고, 제4도 (a),(b) 및 (c)는 본 발명의 일실시예를 설명하기 위한 설명도로서, (a)는 상금형의 정면도, (b)는 이송장치의 측면도, (c)는 하금형의 측면도이며, 제5도는 본 발명에 따른 비드 어셈블리의 종단면도이다.(A) and (b) are front and plan views of the beads, and (a) and (b) are front and plan views of the bead wrap, and (a) and (b) are A front view and a plan view of an assembly of a conventional bead, and Figure 4 (a), (b) and (c) is an explanatory view for explaining an embodiment of the present invention, (a) is a front view of the upper mold, (b) is a side view of the transfer apparatus, (c) is a side view of the lower die, and FIG. 5 is a longitudinal sectional view of the bead assembly according to the present invention.

제1도, 제2도, 제4도 및 제5도에 도시된 바와같이, 본 발명은 공기입 타이어용 비드 어셈블리의 제조방법에 있어서, 노즐(3B)을 통해 일정량의 반죽된 고무(R)를 가열되어 있는 하금형(2)에 투입하고, 이송장치(5)의 자석(6)을 통해 집어진 비드(7)를 상기 하금형(2)에 투입하여 상기 비드(7)의 하부를 상기 고무(R)를 투입하여 초기 응고시켜 고정시킴과 동시에 코팅하는 공정 및 상기 비드(7)의 하부가 고정된 하금형(2)에 상금형(1)을 조립한 후 노즐(3A)을 통해 믹싱된 고무(R)가 상금형(1)으로 투입되어 벤트홀(4)에 의해 상금형(1)의 내부를 균일하게 채워 비드(7)의 상부를 코팅하는 공정을 포함한다.As shown in FIG. 1, FIG. 2, FIG. 4 and FIG. 5, the present invention relates to a method of manufacturing a bead assembly for a pneumatic tire, wherein a predetermined amount of kneaded rubber R is provided through a nozzle 3B. Is injected into the lower mold (2) heated, and the beads (7) collected through the magnet (6) of the transfer device (5) are introduced into the lower mold (2) to lower the lower portion of the beads (7). Rubber (R) is added to the initial solidification by fixing and coating at the same time and the upper mold (1) is assembled to the lower mold (2) in which the lower portion of the bead (7) is fixed and mixed through the nozzle (3A) Rubber (R) is introduced into the upper mold (1) and the step of uniformly filling the inside of the upper mold (1) by the vent hole (4) to coat the top of the bead (7).

이와같이 구성된 본 발명의 작용, 효과를 상세히 설명하면 다음과 같다.Referring to the operation, effects of the present invention configured as described above in detail.

우선, 하금형(2)을 미리 가열한 후 상기 하금형(2)에 설치된 노즐(3B)을 통해 일정량의 반죽된 고무(R)를 하금형(2)으로 투입하고 나서, 이송장치(5)에 설치된 자석(6)으로 비드(7)를 집어들어 상기 하금형(2)에 일정한 위치로 고정시킴과 동시에 상기 고무(R)를 투입하여 소정의 시간이 경과하면 고무(R)와 비드(7)가 초기 응고된다.First, after heating the lower mold 2 in advance, a predetermined amount of kneaded rubber R is introduced into the lower mold 2 through the nozzle 3B installed in the lower mold 2, and then the transfer device 5 The bead 7 is picked up by the magnet 6 installed at the bottom and fixed to the lower mold 2 at a predetermined position, and the rubber R is introduced to the rubber R and the bead 7 after a predetermined time has elapsed. ) Is initially solidified.

이어서, 이송장치(5)를 하금형(2)에서 분리시킨다.Subsequently, the transfer device 5 is separated from the lower die 2.

그리고, 상금형(1)을 하강시켜 하금형(2)에 조립한 후 상금형(1)에 설치된 노즐(3A)을 통해 믹싱된 고무(R)를 상금형(1)에 투입하여 상기 비스(7)의 상부를 코팅한다. 이때, 상금형(1)으로 투입된 고무(R)는 벤트홀(4)에 의해 상금형(1) 내부를 균일하게 채우므로 비드(7)의 상부를 균일하게 코팅한다.Then, the upper mold 1 is lowered and assembled to the lower mold 2, and then the mixed rubber R is introduced into the upper mold 1 through the nozzle 3A installed in the upper mold 1, and the bis ( Coating the top of 7). At this time, the rubber (R) injected into the upper mold (1) uniformly fills the inside of the upper mold (1) by the vent hole (4) to uniformly coat the upper portion of the bead (7).

이후, 상기 상금형(1)과 하금형(2)을 분리한 후 비드 어셈블리를 에이펙스 압출반제품과 조립하여 성형공정으로 이송한다.Thereafter, the upper mold (1) and the lower mold (2) are separated, and then the bead assembly is assembled with the apex extrusion semi-finished product and transferred to the molding process.

상술한 바와같이, 본 발명에 의하면 상하로 분리될 수 있는 금형 및 이송장치를 사용하여 비드 둘레에 반죽된 고무를 코팅함으로써 비드 어셈블리를 제조하기 때문에, 비드 어셈블리의 제조시 겹침이나 끝부분의 이중겹침에 의해 비드 어셈블리에 요철이 생성되어 에이펙스(APEX)와의 접합시 불량제품이 발생하거나 완제품 타이어의 품질이 저하되는 것을 방지할 수 있다는 효과가 있다.As described above, according to the present invention, since the bead assembly is manufactured by coating the kneaded rubber around the bead using a mold and a conveying device which can be separated up and down, double overlap of the overlapping or end portions during the manufacture of the bead assembly. As a result, irregularities are generated in the bead assembly, thereby preventing the occurrence of defective products or deterioration of the finished tires when bonding to the APEX.

Claims (1)

공기입 타이어용 비드 어셈블리의 제조방법에 있어서, 노즐(3B)을 통해 일정량의 반죽된 고무(R)를 가열되어 있는 하금형(2)에 투입하고, 이송장치(5)의 자석(6)을 통해 집어진 비드(7)를 상기 하금형(2)에 투입하여 상기 비드(7)의 하부를 상기 고무(R)를 투입하여 초기 응고시켜 고정시킴과 동시에 코팅하는 공정 및, 상기 비드(7)의 하부가 고정된 하금형(2)에 상금형(1)을 조립한 후 노즐(3A)을 통해 믹싱된 고무(R)가 상금형(1)으로 투입되어 벤트홀(4)에 의해 상금형(1)의 내부를 균일하게 채워 비드(7)의 상부를 코팅하는 공정을 포함하는 것을 특징으로 하는 공기입 타이어용 비드 어셈블리의 제조방법.In the method of manufacturing a bead assembly for pneumatic tires, a predetermined amount of kneaded rubber R is introduced into a heated mold 2 through a nozzle 3B, and the magnet 6 of the transfer device 5 is placed. The bead (7) is collected through the lower mold (2) to the lower portion of the bead (7) by the rubber (R) by the initial solidification by fixing and coating at the same time, the bead (7) After assembling the upper mold 1 to the lower mold 2 to which the lower part is fixed, the rubber R mixed through the nozzle 3A is introduced into the upper mold 1 and the upper mold 1 is opened by the vent hole 4. Method for producing a pneumatic tire bead assembly comprising the step of uniformly filling the inside of the (1) to coat the upper portion of the bead (7).
KR1019970003432A 1997-02-04 1997-02-04 Bead assembly manufacturing method of the tyre KR100198482B1 (en)

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KR1019970003432A KR100198482B1 (en) 1997-02-04 1997-02-04 Bead assembly manufacturing method of the tyre

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