KR20060099621A - Extrusion velocity change apparatus of extruder in tire extrusion process - Google Patents

Extrusion velocity change apparatus of extruder in tire extrusion process Download PDF

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Publication number
KR20060099621A
KR20060099621A KR1020050020948A KR20050020948A KR20060099621A KR 20060099621 A KR20060099621 A KR 20060099621A KR 1020050020948 A KR1020050020948 A KR 1020050020948A KR 20050020948 A KR20050020948 A KR 20050020948A KR 20060099621 A KR20060099621 A KR 20060099621A
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South Korea
Prior art keywords
extruder
extrudate
tire
extrusion
speed
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KR1020050020948A
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Korean (ko)
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이현호
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한국타이어 주식회사
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Priority to KR1020050020948A priority Critical patent/KR20060099621A/en
Publication of KR20060099621A publication Critical patent/KR20060099621A/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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

본 발명은 타이어 제조시 압출공정의 압출기에서 압출되는 각종 압출물의 속도를 품질상의 문제없이 압력 및 저장존의 높이에 따라 자동으로 변경할 수 있는 타이어 압출공정에 있어서 압출기의 압출물 자동속도 변경장치에 관한 것이다.The present invention relates to an apparatus for automatically changing the extrudate of an extruder in a tire extrusion process that can automatically change the speed of various extrudates extruded from an extruder of an extrusion process according to the pressure and the height of the storage zone without quality problems. will be.

이를 위해 본 발명은 압출기(1)에서 토출되는 압출물(2)이 냉각롤(3)을 거쳐 리니어 스케일부(5)에 의해 높이 조정되는 저장존(4)을 통과하여 보빈(6)에 권취 적재되는 타이어 압출 시스템에 있어서, 상기 압출기(1)의 압출물(2) 토출속도는 이 압출기(1)의 압출 압력신호와 저장존(4)의 리니어 스케일부(5)에 의해 높이 조정된 신호를 PLC(7)로 인가받아, 이 PLC(7)에서 압출기(1)의 속도를 제어하는 DC모터(8)로 신호를 전달하여 압출기(1)의 압출물 토출속도를 제어하도록 되어 있다.To this end, in the present invention, the extrudate 2 discharged from the extruder 1 is wound around the bobbin 6 by passing through the storage zone 4 which is adjusted by the linear scale part 5 via the cooling roll 3. In the tire extruder system to be loaded, the extrudate 2 ejection speed of the extruder 1 is a height-adjusted signal by the extrusion pressure signal of the extruder 1 and the linear scale part 5 of the storage zone 4. Is supplied to the PLC 7 to transmit a signal from the PLC 7 to the DC motor 8 that controls the speed of the extruder 1 to control the extruded product ejection speed of the extruder 1.

Description

타이어 압출공정에 있어서 압출기의 압출물 자동속도 변경장치{Extrusion velocity change apparatus of extruder in tire extrusion process}Extrusion velocity change apparatus of extruder in tire extrusion process

도 1은 본 발명이 적용된 타이어 압출공정의 전체 개략 구성도,1 is a schematic overall configuration of the tire extrusion process to which the present invention is applied,

도 2는 본 발명의 회로 블록도,2 is a circuit block diagram of the present invention;

도 3은 종래 압출기의 압출물 속도제어 장치의 구성도이다.Figure 3 is a block diagram of a conventional extruding device speed control device.

-도면의 주요부분에 대한 부호의 설명-Explanation of symbols on the main parts of the drawing

1 : 압출기, 2 : 압출물,1: extruder, 2: extrudate,

3 : 냉각롤, 4 : 저장존,3: cooling roll, 4: storage zone,

5 : 리니어 스케일부, 6 : 보빈,5: linear scale part, 6: bobbin,

7 : PLC(Programabble Logic Controller),7: PLC (Programabble Logic Controller),

8 : DC모터.8: DC motor.

본 발명은 타이어 제조시 압출공정의 압출기에서 압출되는 각종 압출물의 속도를 품질상의 문제없이 압력 및 저장존의 높이에 따라 자동으로 변경할 수 있는 타이어 압출공정에 있어서 압출기의 압출물 자동속도 변경장치에 관한 것이다.The present invention relates to an apparatus for automatically changing the extrudate of an extruder in a tire extrusion process that can automatically change the speed of various extrudates extruded from an extruder of an extrusion process according to the pressure and the height of the storage zone without quality problems. will be.

기히 공지된 바와 같이 타이어의 압출공정은 정련공정에서 생산된 배합고무(일명, Q고무라 칭함)를 분쇄작업 및 열입작업을 거쳐 일정한 속도, 일정한 온도 및, 가속도로 연속적으로 압출기에 공급하여 설치된 구금다이를 통해 제조 시방서에 의거 일정한 형상으로 연속 토출해 내는 작업으로서, 압출물의 종류로는 캡 트레드(Cap tread), 언더 트레드(Under tread), 사이드 트레드(Side tread), 카카스(Carcass), 브라더(Bladder), 후랩(Flap)등이 있다.As is well known, the tire extrusion process is carried out by crushing and injecting the compound rubber (also called Q rubber) produced in the refining process by continuously feeding the extruder to the extruder at a constant speed, constant temperature, and acceleration. Through the continuous discharge in a uniform shape according to the manufacturing specifications through the type of extrudate, Cap tread, Under tread, Side tread, Carcass, Brother ( Bladder) and flaps.

타이어를 구성하는 이러한 반제품 압출물은 종래 도 3과 같은 방식에 의해 보빈(106)에 권취 적재 되는바, 즉 압출기(101)에서 토출된 압출물(102)은 테이크 웨이(Take way) 컨베이어(110)와 냉각 컨베이어(111)를 거쳐 보빈(106)에 권취 되었다. 여기서 상기 압출기(101)의 압출물 토출속도는 압출물(102)의 보빈(106) 또는 대차방식 적용으로 인해 일정한 속도를 유지하도록 되어 있으며, 이 토출속도는 정해진 제조 시방서의 프로파일에 의하여 결정되었다.The semi-finished extrudate constituting the tire is conventionally wound and loaded into the bobbin 106 by the same method as in FIG. 3, that is, the extrudate 102 discharged from the extruder 101 is a take way conveyor 110. And the bobbin 106 is wound around the cooling conveyor 111. Here, the extrudate ejection rate of the extruder 101 is to maintain a constant rate due to the application of the bobbin 106 or the bogie system of the extrudate 102, this ejection rate was determined by the profile of a predetermined manufacturing specification.

그러나 종래 압출기의 압출물 토출속도는 15~30mpm 정도의 고속 압출로 속도 변화의 가감이 클 때에는 반제품 압출물의 프로파일 변형 우려가 있었으며, 또한 압출물의 프로파일을 방지하기 위해 속도 변화가 있을 때마다 압출기를 정지시키거나 정지시 압출물의 일부를 제거하여 보빈 등에 공급함에 따라 자연히 생산성 저하와 작업의 번거로움이 있었다.However, the extruder ejection speed of the conventional extruder is a high speed extrusion of about 15 ~ 30mpm, there is a fear of profile deformation of the semi-finished extrudate when the speed change is large, and also stop the extruder whenever there is a speed change to prevent the profile of the extrudate When extruded or stopped, a part of the extrudate was removed and fed to the bobbin, which naturally reduced productivity and hassle.

이에 본 발명은 상기와 같은 종래 문제점을 해결하기 위해 발명된 것으로, 압출기에서 토출되는 타이어 반제품 압출물을 저장존의 리니어 스케일 높이 조정과 토출압력에 따라 압출기의 압출 속도를 가변적으로 조절하도록 이루어진 타이어 압출공정에 있어서 압출기의 압출물 자동속도 변경장치를 제공함에 그 목적이 있다.Accordingly, the present invention has been invented to solve the conventional problems as described above, the tire extruded tire is made to adjust the extrusion speed of the extruder in accordance with the linear scale height adjustment and the discharge pressure of the semi-finished product discharged from the extruder It is an object of the present invention to provide an automatic speed changer for an extrudate of an extruder in a process.

상기와 같은 목적을 달성하기 위한 본 발명은 압출기에서 토출되는 압출물이 냉각롤들을 거쳐 리니어 스케일부에 의해 높이 조정되는 저장존을 통과하여 보빈에 권취 적재되는 타이어 압출 시스템에 있어서, 상기 압출기의 압출물 토출속도는 이 압출기의 압출압력 신호와 저장존의 리니어 스케일부에 의해 높이 조정된 신호를 PLC로 인가받아서 상기 PLC에서 압출기의 속도를 제어하는 DC모터로 신호를 전달하여 압출기의 토출속도를 제어하도록 되어 있다.The present invention for achieving the above object is a tire extrusion system in which the extrudate discharged from the extruder is wound on the bobbin through the storage zone is adjusted by the linear scale portion through the cooling rolls, the extrusion of the extruder The water discharge rate is controlled by the extruder's extrusion pressure signal and the height-adjusted signal by the linear scale of the storage zone to the PLC and transmits the signal to the DC motor that controls the extruder's speed from the PLC to control the discharge rate of the extruder. It is supposed to be.

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

도 1은 본 발명이 적용된 타이어 압출공정의 전체 개략 구성도이고, 도 2는 본 발명의 회로 블록도이다.1 is an overall schematic configuration diagram of a tire extrusion process to which the present invention is applied, and FIG. 2 is a circuit block diagram of the present invention.

본 발명은 도면에 도시된 바와 같이 압출기(1)에서 토출되는 압출물(2)이 냉각롤(3)을 거쳐 리니어 스케일부(5)에 의해 높이 조정되는 저장존(4)을 통과하여 보빈(6)에 권취 적재되는 타이어 압출 시스템에 있어서, 상기 압출기(1)의 압출물(2) 토출속도는 이 압출기(1)의 압출 압력신호와 저장존(4)의 리니어 스케일부(5)에 의해 높이 조정된 신호를 PLC(7)로 인가 받아, 이 PLC(7)에서 압출기(1)의 속도를 제어하는 DC모터(8)로 신호를 전달하여 압출기(1)의 압출물 토출속도를 제어하도록 되어 있다.According to the present invention, as shown in the drawing, the extrudate 2 discharged from the extruder 1 passes through a storage zone 4 that is height-adjusted by the linear scale part 5 via a cooling roll 3 and then bobbins ( In the tire extrusion system wound up to 6), the discharge speed of the extrudate 2 of the extruder 1 is controlled by the extrusion pressure signal of the extruder 1 and the linear scale 5 of the storage zone 4. The height-adjusted signal is applied to the PLC 7 to transmit a signal from the PLC 7 to the DC motor 8 that controls the speed of the extruder 1 to control the extrudate discharge rate of the extruder 1. It is.

즉 본 발명은 상기 압출물(2)의 저장부인 저장존(4)의 리니어 스케일부(5)에 서 받아들인 높이 데이터와 압출기(1)의 헤드 토출압력 데이터를 PLC(7)에서 받아 들인 후, 이 PLC(7)에서 압출기(1)의 압출속도를 가변시키되, 이는 DC모터(8)에서 속도출력을 하도록 되어 있다.That is, the present invention receives the height data received by the linear scale part 5 of the storage zone 4 as the storage part of the extrudate 2 and the head discharge pressure data of the extruder 1 from the PLC 7. In this PLC 7, the extrusion speed of the extruder 1 is varied, but the speed is output from the DC motor 8.

이때, 상기 압출기(1)의 헤드 토출압력은 130~135㎏/㎠ 사이를 유지하도록 한다.At this time, the head discharge pressure of the extruder 1 to maintain between 130 ~ 135kg / ㎠.

이를 좀더 부언하면, 압출기(1)의 압출물 토출속도를 가변시키기 위해서는 먼저 저장존(4)에 설치되어 있는 리니어 스케일부(5)의 높이 데이터와 압출기(1)의 헤드 토출압력 데어터를 PLC(7)로 전송하여 각각의 데이터를 일정비율의 속도로 연산하여 DC모터(8)로 전송한다.In addition, in order to change the extrudate discharge speed of the extruder 1, first, the height data of the linear scale unit 5 installed in the storage zone 4 and the head discharge pressure data of the extruder 1 are converted into PLC ( 7) to calculate the data at a constant rate and transmit to the DC motor (8).

여기서 상기 리니어 스케일부(5)의 화살표 방향의 높낮이 조정은 공지의 실린더를 이용하여 조절되는데, 상위라인의 적체 여부에 따라 이 높낮이 데이터는 결정된다.Here, the height adjustment in the direction of the arrow of the linear scale unit 5 is adjusted using a known cylinder, and this height data is determined depending on whether the upper line is stacked.

이렇게 결정된 리니어 스케일부(5)의 높이 데이터와 압출기(1)의 헤드 토출압력으로 PLC(7)에서 연산하여 결정된 신호를 DC모터(8)로 인가시키어 압출기(1)의 압출물 토출속도를 결정하도록 되어 있다.The height data of the linear scale part 5 and the head discharge pressure of the extruder 1 thus determined are calculated by the PLC 7 to apply the signal determined to the DC motor 8 to determine the extrudate discharge rate of the extruder 1. It is supposed to be.

상기와 같은 본 발명은 압출물 토출 작업시 상위라인의 적체시 발생되는 압출기의 정지횟수를 최적화하여 작업 생산성을 개선시키며, 저장존의 리니어 스케일부와 압출기 압력에 따른 속도변경으로 상기 저장존의 저장시간을 최대로 확보할 수 있어서 작업의 연속성이 향상된다.The present invention as described above to improve the work productivity by optimizing the number of stops of the extruder generated during the stacking of the upper line during the ejection of the extrudate, the storage of the storage zone by changing the speed according to the linear scale of the storage zone and the extruder pressure The maximum time can be secured, which improves the continuity of the work.

Claims (1)

압출기(1)에서 토출되는 압출물(2)이 냉각롤(3)을 거쳐 리니어 스케일부(5)에 의해 높이 조정되는 저장존(4)을 통과하여 보빈(6)에 권취 적재되는 타이어 압출 시스템에 있어서, The tire extrusion system in which the extrudate 2 discharged from the extruder 1 is wound on the bobbin 6 by passing through the cooling roll 3 and through the storage zone 4 which is adjusted by the linear scale 5. To 상기 압출기(1)의 압출물(2) 토출속도는 이 압출기(1)의 압출 압력신호와 저장존(4)의 리니어 스케일부(5)에 의해 높이 조정된 신호를 PLC(7)로 인가 받아, 이 PLC(7)에서 압출기(1)의 속도를 제어하는 DC모터(8)로 신호를 전달하여 압출기(1)의 압출물 토출속도를 제어하도록 이루어진 것을 특징으로 하는 타이어 압출공정에 있어서 압출기의 압출물 자동속도 변경장치.The extruder 2 discharge speed of the extruder 1 receives the extruded pressure signal of the extruder 1 and the signal adjusted by the linear scale part 5 of the storage zone 4 to the PLC 7. In this tire (7), the extruder in the tire extrusion process, characterized in that to transmit a signal to the DC motor (8) to control the speed of the extruder 1 to control the extrudate discharge rate of the extruder (1) Extrusion auto speed changer.
KR1020050020948A 2005-03-14 2005-03-14 Extrusion velocity change apparatus of extruder in tire extrusion process KR20060099621A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101354046B1 (en) * 2012-12-13 2014-01-24 한국타이어 주식회사 Tire rubber extrusion die having cooling apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101354046B1 (en) * 2012-12-13 2014-01-24 한국타이어 주식회사 Tire rubber extrusion die having cooling apparatus

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