WO2007116502A1 - タイヤ用成型ドラムの駆動装置 - Google Patents
タイヤ用成型ドラムの駆動装置 Download PDFInfo
- Publication number
- WO2007116502A1 WO2007116502A1 PCT/JP2006/306950 JP2006306950W WO2007116502A1 WO 2007116502 A1 WO2007116502 A1 WO 2007116502A1 JP 2006306950 W JP2006306950 W JP 2006306950W WO 2007116502 A1 WO2007116502 A1 WO 2007116502A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- drum
- shaft
- rotation
- motor
- rotation driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- 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
- B29D30/24—Drums
- B29D30/26—Accessories or details, e.g. membranes, transfer rings
Definitions
- the present invention mainly relates to a driving device for a tire forming drum such as a belt forming drum.
- a carcass ply which is a reinforcing member including an inner liner made of a rubber material, a rubber chafer, and a cord
- a tire constituent member on the circumferential surface of the molding drum.
- a cylindrical force is formed into a single band, and the side of the bead is molded into a green case with a primary molding drum to form a green case.
- a molding method in which a green tire is molded by transferring it to a drum, deforming the green case into a toroidal shape, and attaching a belt tread rubber or the like containing a cord thereon.
- a so-called belt molding drum for molding the belt Z tread band is an expandable / contractible drum composed of a number of segments divided into a plurality of circumferential directions, and the belt Z tread.
- the segments are held in an expanded state, and the members are attached to the drum peripheral surface and laminated and molded.
- the molded cylindrical belt z tread band is taken out to be transferred to the next process, each segment of the belt molded drum is held in a state where the band is gripped from the outer periphery by the gripping means of the transfer device. The band is removed by reducing the diameter.
- a central shaft portion as a drum shaft is connected to a motor as a driving means for rotation of a driving device, and each segment is driven for expansion / contraction via an expansion / contraction mechanism. Connected to the means.
- a molding drum expansion / contraction mechanism As a molding drum expansion / contraction mechanism, a cylinder device or a screw shaft is used. Various mechanisms have been adopted according to the type of band to be molded and the difference in molding stage.
- a screw shaft that is rotatable relative to the outer shaft is disposed inside a cylindrical outer shaft that forms the central shaft portion of the molding drum.
- an inclined guide such as a taper cone or a link member
- the driving device for the molding drum requires a rotation driving means for rotating the outer shaft and a rotation driving means for rotating the screw shaft to perform an expansion / contraction operation.
- a motor is used as these rotational driving means.
- Patent Document 1 Japanese Patent Laid-Open No. 2003-89158
- the present invention solves the above-described problems, and as a driving device for a molding drum for a tire such as a belt molding drum, the load at the time of drum rotation can be reduced, and it is economical. It is an object of the present invention to provide a drive device that facilitates expansion and contraction operations and can perform them reliably.
- the drum body is configured to be expandable / contractable by a segment divided in a plurality of circumferential directions, and a central shaft portion is formed with a cylindrical outer shaft.
- a driving device for a tire molding drum comprising a screw shaft disposed inside thereof, a cylindrical outer shaft coupled to the outer shaft of the molding drum, a middle shaft coupled to the screw shaft, A first rotation driving means for rotating the drum connected to the outer shaft; And a second rotation driving means for expanding / contracting the drum, which is connected to be connectable / disengageable via a latch, and the second rotation driving means when the first rotation driving means is operated by the switching of the clutch.
- the rotation driving means is held in a disconnected state with respect to the middle shaft, and the second rotation driving means is held in a connected state with respect to the middle shaft when the drum is expanded or contracted.
- the tire molding drum drive device when the drum is rotated by the operation of the first rotation driving means, the inner screw shaft and the inner screw shaft are synchronized with the rotation of the outer shaft of the molding drum.
- the center shaft connected to the second shaft rotates.
- the second shaft is disconnected. Since the rotation driving means is separated from the middle shaft, the load by the second rotation driving means does not act at all on the rotation of the middle shaft, and the rotation can be smoothly performed.
- the clutch is preferably controlled so as to keep the second rotary driving means in a non-connected state with respect to the central shaft except during drum expansion / contraction.
- the drum itself should not be scaled except when it is scaled.
- the screw shaft can be rotated forward and backward by being able to rotate forward and backward by a signal instructing the rotational direction from the control unit. Accordingly, the rotation of the screw shaft can surely perform the diameter expansion operation and the diameter reduction operation of each segment.
- the tire molding drum drive device of the present invention when the drum is rotated by the operation of the first rotation drive means for rotation, the second rotation drive means for expansion and contraction and the center shaft Since the clutch between the two is held in a disconnected state (disconnected state), the second rotational driving hand It is possible to rotate smoothly without causing a load due to the stage, and it is possible to reduce the amount of electric power required for drum rotation and to improve the economic efficiency.
- the first rotation drive means is stopped, the clutch is switched to the connected state, and the second rotation drive means is operated to activate the second rotation drive means.
- the screw shaft of the molding drum connected to the molding drum can be rotated stably and reliably, and each segment of the drum body can be reliably expanded and contracted.
- FIG. 1 is a cross-sectional view of a main part showing an embodiment of a driving device for a molding drum for tires according to the present invention
- FIG. 2 is a cross-sectional view showing an expansion / contraction mechanism of the molding drum.
- symbol D is a molding drum, and in this embodiment, a so-called belt molding for molding a cylindrical belt Z tread band which also has a force between a belt layer and a tread rubber layer on tire molding.
- reference numeral 1 denotes a drum body
- 2 denotes a central shaft portion.
- the drum main body 1 is configured to be expandable / contractable by a segment la divided into a plurality of circumferential directions
- a central shaft portion 2 of the drum main body 1 includes a cylindrical outer shaft 3 for rotating the drum and the outer side. It has a double shaft structure with a drum shaft 4 for drum expansion and contraction inserted inside the shaft 3 so as to be relatively rotatable.
- each segment la in the example shown in the figure, the moving member 5 that is screwed into the screw portion 4a of the screw shaft 4 and moves in the axial direction by the rotation of the screw shaft 4; la and force are connected to each other via a link member 6 which is pin-connected so that the angle can be changed in the axial direction, and each segment la is connected via the link member 6 by the axial movement of the moving member 5.
- Is expanded / reduced that is, has a diameter expansion operation! /, And can be configured to perform a diameter reduction operation.
- the direction of the expansion / contraction operation is determined by the moving direction of the moving member 5.
- the Reference numeral 7 denotes a support portion that supports each segment la so as to allow radial displacement with respect to the outer shaft 3 and restrict axial displacement.
- the screw shaft 4 is not required to be formed with a screw over its entire length, and the screw portion 4a may be formed over the length of the moving range of the moving member 5 at least.
- each segment la can be implemented by an expansion / contraction structure using an inclined guide instead of the link member.
- the drive device 10 of the present invention is configured to rotationally drive the outer shaft 3 and the inner screw shaft 4 in the central shaft portion 2 of the molding drum D, respectively.
- the main shaft portion 12 of the driving device 10 has a double shaft structure including an outer shaft 13 to which the outer shaft 3 of the molding drum D is connected and an intermediate shaft 14 to which the screw shaft 4 is connected.
- Reference numeral 8 indicates a connecting part by port fastening between the outer shaft 3 and the outer shaft 13, and reference numeral 9 indicates a connecting part by engagement of the screw shaft 4 with the middle shaft 14 by an angular axis.
- the main shaft portion 12 is arranged at a plurality of locations (two locations in the figure) at intervals in the axial direction in the support portion 31 in which the outer shaft 13 is provided on the movable support base 30.
- the bearings 32 and 32 are supported by the bearings 32 and 32 so as to be rotatable substantially horizontally, so that the molding drum D connected to the main shaft portion 12 is cantilevered.
- the middle shaft 14 is supported by a bearing 33 arranged near the end of the drum support side on the inner side of the outer shaft 13, and more axially than the outer shaft 13 on the side opposite to the drum support side.
- a long projecting end side portion 14 a is supported through the central opening 34 a of the support member 34 on the movable support base 30.
- a first motor 15 as a first rotation driving means for rotating the drum is connected to the outer shaft 13 of the main shaft portion 12 at the end opposite to the drum support side, The rotation of the first motor 15 rotates the outer shaft 13 and the outer shaft 3 of the molding drum D connected thereto, so that the drum body 1 can be driven to rotate.
- the first motor 15 is an outer rotor type annular motor, and is attached to the support member 34 outside the protruding end side portion 14a of the middle shaft 14 extending in the axial direction from the outer shaft 13.
- the end 16a of the cylindrical connecting member 16 fixed to the rotor member (not shown) of the first motor 15 is bolted to the end 13a of the outer shaft 13. 17 shows the fastening part.
- the middle shaft 14 of the main shaft portion 12 includes a second rotational drive for drum expansion / contraction at a shaft end portion that protrudes through the cylindrical portion 34a of the first motor 15 and the support member 34.
- a second motor 20 capable of forward and reverse rotation as a step is connected via a clutch 21 so as to be freely connected and disconnected.
- the clutch 21 is provided so that the second motor 20 can be switched between a disconnected state (non-connected state) and a connected state with respect to the central shaft 14. In the connected state, the screw shaft 4 of the molding drum D can be rotated through the intermediate shaft 14 by rotating the second motor 20.
- the second motor 20 is fixedly attached to the support member 34 via a support leg 22, and the output shaft 23 of the second motor 20 and the shaft end of the middle shaft 14 are Clutch 21 is installed.
- clutches of various structures that can be connected and disconnected in a transmission state, such as providing engagement members 21a and 21b that can be engaged with and disengaged from each other at the shaft end of the intermediate shaft 14 and the end of the output shaft 23, are used. Although it can be used, in this embodiment, it is easy to control the operation, and an electromagnetic clutch is used.
- the first motor 15 for rotating the drum and the second motor 20 for expanding and contracting the drum are electrically connected to a control unit (not shown), respectively.
- a control unit (not shown), respectively.
- the second motor 20 is configured to rotate forward or reverse in response to a signal instructing the direction of rotation from the control unit, whereby the movement due to forward or reverse rotation of the screw shaft 4 is achieved.
- the moving direction of the member 5 can be selected as appropriate, and each segment la can be expanded or contracted.
- the clutch 21 is also electrically connected to the control unit and is appropriately switched according to the necessity in the molding cycle by a command signal from the control unit.
- the second motor 20 is held in a disconnected state (disconnected state) with respect to the middle shaft 14, and the first motor 15 At the time of drum expansion / contraction in a state where drum rotation by the motor 15 is stopped, the second motor 20 is set so as to be kept connected to the middle shaft 14.
- the clutch 21 interposed between the middle shaft 14 and the second motor 20 for expansion / contraction in the main shaft portion 12 is held in a disconnected state (disconnected state), and the second motor 20 for drum expansion / contraction is maintained.
- the 14 shaft force is also separated. Therefore, during the rotation of the drum, the inner screw shaft 4 and the middle shaft 14 connected to the outer shaft 3 rotate as the outer shaft 3 rotates, and the load from the second motor 20 is applied to this rotation. Therefore, it can rotate smoothly, and as a result, power consumption can be reduced. If the first motor 15 is stopped, the rotation of the molding drum D is stopped.
- the clutch 21 is switched to change the above-mentioned
- the second motor 20 is held connected to the middle shaft 14. In this state, by operating the second motor 20, the rotation of the second motor 20 is transmitted to the screw shaft 4 of the molding drum D through the intermediate shaft 14, and the screw shaft 4 is rotated forward or reverse.
- the moving member 5 screwed into the threaded portion 4a of the screw shaft 4 is moved in the axial direction, and each segment la of the drum main body 1 is subjected to a diameter reducing operation or an expanding operation via the link member 6.
- the outer shaft 3 is in a state in which a load is applied by the first motor 15 in a stopped state connected to the outer shaft 3, and the brake is applied. Even if the screw shaft 4 rotates, the expansion / contraction operation can be performed with good stability without the risk of the outer shaft 3 rotating freely.
- the molding drum D is a belt molding drum
- the rotation of a so-called band molding drum that molds another cylindrical band in tire molding such as a carcass band.
- the same configuration as described above can be implemented.
- the tire molding drum drive device of the present invention molds a molding drum, for example, a belt Z tread band, in which the expansion and contraction operation of the drum body is performed by transmitting rotation to a screw shaft having a central shaft portion. It can utilize suitably for the drive device of a belt molding drum to do.
- FIG. 1 is a cross-sectional view of a main part showing an embodiment of a tire molding drum drive device according to the present invention.
- FIG. 2 is a cross-sectional view showing a molding drum expansion / contraction mechanism.
- D molding drum, 1 ... drum body, la ... segment, 2 ... center shaft, 3 ... outer shaft, 4 ... screw shaft, 4a ... 2 screws, 5 ... moving member, 6 ... Link member, 7 ... supporting part, 8 ... connecting part, 9 to connecting part, 10 ... drive device, 12 ... main shaft part, 13 ... outer shaft, 13a ... end part, 14 ... medium shaft, 14a- Projection end side part, 15 ... 1st motor, 16 ... Cylindrical connecting member, 16a ... End, 17 ... Fastening part, 2 ... 2nd motor, 21 ... Clutch, 21a ... Engagement Combined member, 21b ... engaging member, 22 ... support leg, 23 ... output shaft, 30 ... moving support base, 31 ... support part, 32 ... bearing, 33 ... bearing, 34 ... support member, 34a ... central opening.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tyre Moulding (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008509653A JP4634505B2 (ja) | 2006-03-31 | 2006-03-31 | タイヤ用成型ドラムの駆動装置 |
| US12/294,777 US8171971B2 (en) | 2006-03-31 | 2006-03-31 | Driving apparatus for tire building drum |
| DE112006003828.1T DE112006003828B4 (de) | 2006-03-31 | 2006-03-31 | Antriebsvorrichtung für eine Reifenwickeltrommel |
| PCT/JP2006/306950 WO2007116502A1 (ja) | 2006-03-31 | 2006-03-31 | タイヤ用成型ドラムの駆動装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2006/306950 WO2007116502A1 (ja) | 2006-03-31 | 2006-03-31 | タイヤ用成型ドラムの駆動装置 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007116502A1 true WO2007116502A1 (ja) | 2007-10-18 |
Family
ID=38580811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2006/306950 Ceased WO2007116502A1 (ja) | 2006-03-31 | 2006-03-31 | タイヤ用成型ドラムの駆動装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8171971B2 (ja) |
| JP (1) | JP4634505B2 (ja) |
| DE (1) | DE112006003828B4 (ja) |
| WO (1) | WO2007116502A1 (ja) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012035562A (ja) * | 2010-08-10 | 2012-02-23 | Bridgestone Corp | 未加硫タイヤの成型装置及び同成型方法 |
| CN107775977A (zh) * | 2016-08-24 | 2018-03-09 | 沈阳新松机器人自动化股份有限公司 | 基于伺服控制的自动涨缩鼓 |
| CN109676985A (zh) * | 2018-12-29 | 2019-04-26 | 厦门洪海机械有限公司 | 半钢乘用子午轮胎胶料二次膨胀贴合方法 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112061827A (zh) * | 2020-08-18 | 2020-12-11 | 上海双张新材料科技有限公司 | 一种垂直放置涨紧铜卷的放卷装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08318579A (ja) * | 1995-05-26 | 1996-12-03 | Bridgestone Corp | タイヤ成型ドラムの駆動装置 |
| JPH11165358A (ja) * | 1997-12-04 | 1999-06-22 | Bridgestone Corp | ドラムの駆動機構 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0651372B2 (ja) * | 1990-10-31 | 1994-07-06 | 住友ゴム工業株式会社 | 環状部材成形装置 |
| US4780171A (en) * | 1987-08-13 | 1988-10-25 | Wyko Incorporated | Tire building machine |
| EP0506962B1 (en) | 1990-10-31 | 1996-09-18 | Sumitomo Rubber Industries Limited | Apparatus for forming ring-shaped member |
| JPH0651372A (ja) | 1992-06-02 | 1994-02-25 | Nikon Corp | フォーカルプレーンシャッタ装置 |
| JP2003089158A (ja) | 2001-09-19 | 2003-03-25 | Bridgestone Corp | バンド成型ドラムおよびそれを用いたバンド成型装置 |
-
2006
- 2006-03-31 JP JP2008509653A patent/JP4634505B2/ja not_active Expired - Lifetime
- 2006-03-31 DE DE112006003828.1T patent/DE112006003828B4/de not_active Expired - Fee Related
- 2006-03-31 WO PCT/JP2006/306950 patent/WO2007116502A1/ja not_active Ceased
- 2006-03-31 US US12/294,777 patent/US8171971B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08318579A (ja) * | 1995-05-26 | 1996-12-03 | Bridgestone Corp | タイヤ成型ドラムの駆動装置 |
| JPH11165358A (ja) * | 1997-12-04 | 1999-06-22 | Bridgestone Corp | ドラムの駆動機構 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012035562A (ja) * | 2010-08-10 | 2012-02-23 | Bridgestone Corp | 未加硫タイヤの成型装置及び同成型方法 |
| CN107775977A (zh) * | 2016-08-24 | 2018-03-09 | 沈阳新松机器人自动化股份有限公司 | 基于伺服控制的自动涨缩鼓 |
| CN107775977B (zh) * | 2016-08-24 | 2019-11-29 | 沈阳新松机器人自动化股份有限公司 | 基于伺服控制的自动涨缩鼓 |
| CN109676985A (zh) * | 2018-12-29 | 2019-04-26 | 厦门洪海机械有限公司 | 半钢乘用子午轮胎胶料二次膨胀贴合方法 |
| CN109676985B (zh) * | 2018-12-29 | 2021-06-11 | 厦门洪海机械有限公司 | 半钢乘用子午轮胎胶料二次膨胀贴合方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4634505B2 (ja) | 2011-02-16 |
| DE112006003828B4 (de) | 2019-02-07 |
| US8171971B2 (en) | 2012-05-08 |
| JPWO2007116502A1 (ja) | 2009-08-20 |
| US20100230055A1 (en) | 2010-09-16 |
| DE112006003828T5 (de) | 2009-02-05 |
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