JP5651504B2 - シート状ゴム成形装置及び方法 - Google Patents
シート状ゴム成形装置及び方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 24
- 238000010068 moulding (rubber) Methods 0.000 title claims description 22
- 238000000465 moulding Methods 0.000 claims description 65
- 239000000470 constituent Substances 0.000 claims description 24
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 2
- 230000008569 process Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
-
- 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
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/30—Applying the layers; Guiding or stretching the layers during application
- B29D30/3007—Applying the layers; Guiding or stretching the layers during application by feeding a sheet perpendicular to the drum axis and joining the ends to form an annular element
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
-
- 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
- B29C48/255—Flow control means, e.g. valves
- B29C48/2552—Flow control means, e.g. valves provided in the feeding, melting, plasticising or pumping zone, e.g. screw, barrel, gear-pump or ram
-
- 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
- B29C48/30—Extrusion nozzles or dies
-
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
-
- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
- B29C48/31—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections
- B29C48/313—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets being adjustable, i.e. having adjustable exit sections by positioning the die lips
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/365—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pumps, e.g. piston pumps
- B29C48/37—Gear pumps
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
-
- 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
- B29D30/0061—Accessories, details or auxiliary operations not otherwise provided for
-
- 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)
- B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
- B29D30/58—Applying bands of rubber treads, i.e. applying camel backs
- B29D30/62—Applying bands of rubber treads, i.e. applying camel backs by extrusion or injection of the tread on carcass
-
- 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
- B29C2948/92609—Dimensions
- B29C2948/92628—Width or height
-
- 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
-
- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- 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
- B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
- B29D30/30—Applying the layers; Guiding or stretching the layers during application
- B29D2030/3064—Details, accessories and auxiliary operations not otherwise provided for
- B29D2030/3078—Details, accessories and auxiliary operations not otherwise provided for the layers being applied being substantially continuous, i.e. not being cut before the application step
-
- 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
- B29K2021/00—Use of unspecified rubbers as moulding material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Tyre Moulding (AREA)
Description
押出機のダイヘッドからシート状のゴムを押し出して、所定の幅および高さを有するタイヤ構成部材を成形するシート状ゴム成形装置であって、
前記ダイヘッドを構成し、所定断面形状の開口部を有するダイボディと、
このダイボディの前方側に配置され、前記開口部の前記高さ寸法を変更可能な可変ダイリップと、
前記可変ダイリップの動作を制御するダイリップ制御部と、を備え、
前記可変ダイリップは、高さ方向の一方に位置する第1可動体と、高さ方向の他方に位置する第2可動体とにより構成され、
前記ダイリップ制御部は、成形開始時に前記第1可動体と第2可動体を閉じた状態から、第1可動体を徐々に開方向へ駆動し、所定の高さに到達した後、第1可動体と第2可動体の位置を保持し、成形終了時に第2可動体を徐々に閉方向へ駆動するように、前記可変ダイリップを制御することを特徴とするものである。
前記ダイリップ制御部により、前記可変ダイリップの制御が行われているとき、前記ギアポンプ制御部は、前記ギアポンプを制御して、前記ダイボディからのゴム吐出量を制御することが好ましい。
前記タイヤ構成部材の成形開始時に前記第1可動体と第2可動体を閉じた状態から、第1可動体を徐々に開方向へ駆動するステップと、
前記第1可動体が所定の高さに到達した後、第1可動体と第2可動体の位置を保持するステップと、
成形終了時に前記第2可動体を徐々に閉方向へ駆動するステップと、を有することを特徴とするものである。
前記可変ダイリップの制御が行われる前記成形開始時と前記成形終了時に、前記ギアポンプを制御して、前記ダイボディからのゴム吐出量を制御するステップと、を更に有することが好ましい。
図1において、シート状ゴム成形装置Aは、押出機1と、押出機1の下流側に設けられたギアポンプ2と、ギアポンプ2の下流側に設けられたダイヘッド3と、ダイヘッド3を構成する後述の可変ダイリップ31を駆動する可動体駆動部4とを備える。また、タイヤを構成するタイヤ構成部材を巻き付けるための成形ドラム5が設けられる。
次に、図2によりダイヘッド3の詳細な構成について説明する。図2(a)は側断面図であり、図2(b)は、正面図である。図2に示すように、ダイボディ30の内部にはゴムが流れる流路33が設けられており、ギアポンプ2が配置される上流側から開口部32が形成される下流側へ向けて、徐々に断面積が小さくなるように設定されている。
次に、タイヤ構成部材であるトレッドゴムの成形工程を説明する。図3のフローチャートと、図4A〜4Fにより説明する。
本実施形態において、ギアポンプを用いる構成を説明したが、ギアポンプがない場合でも、本発明は応用することができる。
G タイヤ構成部材
G1 接合部
1 押出機
2 ギアポンプ
3 ダイヘッド
4 可動体駆動部
5 成形ドラム
6 コントローラ
10 スクリュー
20 ギヤ
30 ダイボディ
31 ダイリップ
32 開口部
60 ダイリップ制御部
61 ギアポンプ制御部
62 スクリュー制御部
63 ドラム制御部
64 押出機制御部
310 第1可動体
310a 下端部
311 第2可動体
311a 上端部
Claims (4)
- 押出機のダイヘッドからシート状のゴムを押し出して、所定の幅および高さを有するタイヤ構成部材を成形するシート状ゴム成形装置であって、
前記ダイヘッドを構成し、所定断面形状の開口部を有するダイボディと、
このダイボディの前方側に配置され、前記開口部の前記高さ寸法を変更可能な可変ダイリップと、
前記可変ダイリップの動作を制御するダイリップ制御部と、
前記ダイヘッドの上流側に配置されるギアポンプと、
このギアポンプの駆動を制御するギアポンプ制御部と、を備え、
前記可変ダイリップは、高さ方向の一方に位置する第1可動体と、高さ方向の他方に位置する第2可動体とにより構成され、
前記ダイリップ制御部は、成形開始時に前記第1可動体と第2可動体を閉じた状態から、第1可動体を徐々に開方向へ駆動し、所定の高さに到達した後、第1可動体と第2可動体の位置を保持し、成形終了時に第2可動体を徐々に閉方向へ駆動するように、前記可変ダイリップを制御し、
前記ダイリップ制御部により、前記可変ダイリップの制御が行われているとき、前記ギアポンプ制御部は、前記ギアポンプを制御して、前記ダイボディからのゴム吐出量を制御することを特徴とするシート状ゴム成形装置。 - 請求項1に記載のシート状ゴム成形装置を用いて、押出機のダイヘッドからシート状のゴムを押し出して、所定の幅および高さを有するタイヤ構成部材を成形するシート状ゴム成形方法であって、
前記タイヤ構成部材の成形開始時に前記第1可動体と第2可動体を閉じた状態から、第1可動体を徐々に開方向へ駆動するステップと、
前記第1可動体が所定の高さに到達した後、第1可動体と第2可動体の位置を保持するステップと、
成形終了時に前記第2可動体を徐々に閉方向へ駆動するステップと、
前記ダイヘッドの上流側に配置されるギアポンプの駆動を制御するステップと、
前記可変ダイリップの制御が行われる前記成形開始時と前記成形終了時に、前記ギアポンプを制御して、前記ダイボディからのゴム吐出量を制御するステップと、を有することを特徴とするシート状ゴム成形方法。 - 前記第1可動体と第2可動体を閉じた状態から、第1可動体を徐々に開方向へ駆動する成形開始時には、ギアポンプの回転速度が徐々に増加し、
前記第1可動体と第2可動体の位置を保持する定常時には、ギアポンプの回転速度が一定に保持され、
前記第2可動体を徐々に閉方向へ駆動する成形終了時には、ギアポンプの回転速度が徐々に減少するように制御することを特徴とする請求項2に記載のシート状ゴム成形方法。 - 前記タイヤ構成部材を成形ドラムに直接貼り付けるステップを有することを特徴とする請求項2又は3に記載のシート状ゴム成形方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011050442A JP5651504B2 (ja) | 2011-03-08 | 2011-03-08 | シート状ゴム成形装置及び方法 |
PCT/JP2012/055395 WO2012121148A1 (ja) | 2011-03-08 | 2012-03-02 | シート状ゴム成形装置及び方法 |
CN201280011907.7A CN103582553B (zh) | 2011-03-08 | 2012-03-02 | 片状橡胶成型装置及方法 |
US14/001,973 US9751269B2 (en) | 2011-03-08 | 2012-03-02 | Device and method for forming sheet-like rubber |
US15/661,647 US10265917B2 (en) | 2011-03-08 | 2017-07-27 | Device and method for forming sheet-like rubber |
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JP2011050442A JP5651504B2 (ja) | 2011-03-08 | 2011-03-08 | シート状ゴム成形装置及び方法 |
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JP2012187712A JP2012187712A (ja) | 2012-10-04 |
JP2012187712A5 JP2012187712A5 (ja) | 2013-09-19 |
JP5651504B2 true JP5651504B2 (ja) | 2015-01-14 |
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US (2) | US9751269B2 (ja) |
JP (1) | JP5651504B2 (ja) |
CN (1) | CN103582553B (ja) |
WO (1) | WO2012121148A1 (ja) |
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JP6105330B2 (ja) * | 2013-03-07 | 2017-03-29 | 東洋ゴム工業株式会社 | ゴム部材成型装置 |
JP6147613B2 (ja) * | 2013-09-02 | 2017-06-14 | 東洋ゴム工業株式会社 | ゴム成形装置 |
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CN103582553A (zh) | 2014-02-12 |
JP2012187712A (ja) | 2012-10-04 |
WO2012121148A1 (ja) | 2012-09-13 |
US20130334722A1 (en) | 2013-12-19 |
US10265917B2 (en) | 2019-04-23 |
US9751269B2 (en) | 2017-09-05 |
CN103582553B (zh) | 2015-12-23 |
US20170320282A1 (en) | 2017-11-09 |
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