JP2528263B2 - Holding method and holding device for soft cylindrical material - Google Patents
Holding method and holding device for soft cylindrical materialInfo
- Publication number
- JP2528263B2 JP2528263B2 JP6149762A JP14976294A JP2528263B2 JP 2528263 B2 JP2528263 B2 JP 2528263B2 JP 6149762 A JP6149762 A JP 6149762A JP 14976294 A JP14976294 A JP 14976294A JP 2528263 B2 JP2528263 B2 JP 2528263B2
- Authority
- JP
- Japan
- Prior art keywords
- electric motor
- soft cylindrical
- holding
- gripping
- gripping member
- 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.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 title claims description 35
- 238000000034 method Methods 0.000 title claims description 13
- 238000000465 moulding Methods 0.000 claims description 26
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims 1
- 239000012530 fluid Substances 0.000 description 3
- 235000019589 hardness Nutrition 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
Landscapes
- Tyre Moulding (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、タイヤ製造工程におけ
るグリーンケースの搬送等に対して実施することができ
る軟質円筒材の保持方法及び保持装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for holding a soft cylindrical material which can be used for carrying a green case in a tire manufacturing process.
【０００２】[0002]
【従来の技術】ラジアルタイヤを製造する方法の一つと
して二段階成形方法が知られている。この成形方法で
は、第１成形作業部において円筒状をしたグリーンケー
スの組み立てを行い、続いて第２成形作業部において上
記グリーンケースをトロイダル状に変形させると共にト
レッド等を貼着して、グリーンタイヤとしての組み立て
を行うようになっている。2. Description of the Related Art A two-stage molding method is known as one of methods for manufacturing a radial tire. In this molding method, a cylindrical green case is assembled in the first molding operation unit, and then the green case is deformed into a toroidal shape in the second molding operation unit and a tread or the like is attached to the green tire. It is designed to be assembled.
【０００３】第１、第２の成形作業部は所定距離をおい
て設置されており、それぞれ、グリーンケース又はグリ
ーンタイヤを保持するドラムが互いの中心軸を一軸上に
一致させて配されている。この種二段階成形方法では、
第１成形作業部のドラムに保持されたグリーンケースを
第２成形作業部のドラムへ移載する必要があるが、従
来、このために用いる搬送装置としては、グリーンケー
スよりも一回り径大に形成されたリング状フレームに対
し、その周方向の複数箇所に、流体圧シリンダによって
直接的に径方向移動（直線移動）を行う把持部材が具備
されたもの（特公昭６１−４９１０４号等参照）や、リ
ンク機構を介して間接的に径方向移動（揺動）を行う把
持部材が具備されたもの（特開昭５７−１７４２３６号
参照）が提案されている。The first and second molding work sections are installed at a predetermined distance, and the drums holding the green case or the green tire are arranged with their central axes aligned with each other. . In this kind of two-step molding method,
It is necessary to transfer the green case held on the drum of the first molding work unit to the drum of the second molding work unit, but conventionally, as a conveying device used for this purpose, the diameter is slightly larger than that of the green case. The formed ring-shaped frame is provided with a gripping member that directly moves in a radial direction (linear movement) by a fluid pressure cylinder at a plurality of positions in the circumferential direction (see Japanese Patent Publication No. 61-49104, etc.). Also, there has been proposed a device provided with a gripping member that indirectly moves (swings) in the radial direction via a link mechanism (see Japanese Patent Laid-Open No. 174236/1982).
【０００４】[0004]
【発明が解決しようとする課題】製造するタイヤサイズ
を変更する場合、当然の如くグリーンケースの外径も異
なるものとなる。これに対して従来の搬送装置では、把
持部材の径方向移動量を調節する必要がある。またグリ
ーンケースには、外周面の硬度が異なるものが種々あ
り、タイヤサイズが同じ場合でもこのような硬度差に応
じて把持圧を微妙に変更する（把持部材における径方向
移動量の調節と同じ）必要がある。When the size of the tire to be manufactured is changed, the outer diameter of the green case naturally becomes different. On the other hand, in the conventional transfer device, it is necessary to adjust the radial movement amount of the gripping member. There are various green cases with different hardnesses on the outer peripheral surface, and even when the tire sizes are the same, the gripping pressure is subtly changed according to such hardness difference (same as the adjustment of the radial movement amount of the gripping member). )There is a need.
【０００５】このように従来の搬送装置は、ロット変え
時等にいちいち面倒な調節作業を必要とし、またこの調
節作業のために稼働効率が低下するという欠点があっ
た。一方、この調節を行うに際して、流体圧シリンダ自
体の作動ストロークを変更させることは機構上困難又は
制御が複雑となるため、一般には把持部材を形状の異な
るものに交換したり把持部材の移動許容範囲を機械的に
変更させたりすることで対処していた。そのため、どう
してもきめ細かい調節に対応し難いという難点があっ
た。As described above, the conventional transfer device has a drawback that it requires a troublesome adjustment work each time a lot is changed and the operation efficiency is lowered due to the adjustment work. On the other hand, when performing this adjustment, it is difficult to change the operation stroke of the fluid pressure cylinder itself or the control becomes complicated. Therefore, in general, the gripping member should be replaced with one having a different shape or the allowable movement range of the gripping member. Was dealt with by mechanically changing. Therefore, there is a difficulty that it is difficult to handle fine adjustments.
【０００６】なお、グリーンケースは外周面が軟弱であ
って傷付き易く、また変形し易いものであるから、把持
部材の径方向移動量が正確に調節されていない場合（特
に、径方向移動量が過大となっていた場合）には、グリ
ーンケースの外周面に把持傷を付けることになる。また
グリーンケースを変形させてしまうこともあり、この場
合にはグリーンケースが第２成形作業部のドラム等と衝
突干渉するに至って、衝突傷の発生又は装置の非常停止
等を招来するものとなっていた。Since the outer peripheral surface of the green case is soft and easily damaged or deformed, the radial movement amount of the gripping member is not accurately adjusted (especially the radial movement amount). Is too large), the outer peripheral surface of the green case will be gripped and scratched. In addition, the green case may be deformed, and in this case, the green case collides and interferes with the drum or the like of the second molding work unit, which causes collision scratches or an emergency stop of the apparatus. Was there.
【０００７】このようにグリーンケースに把持傷や衝突
傷等が生じた場合には、加硫済みタイヤ表面に傷が残る
ためいちいち手作業によりバフ仕上げを施す必要がある
ので、生産性を著しく低下させるものとなっていた。本
発明は上記事情に鑑みてなされたものであって、ラジア
ルタイヤのグリーンケース等、軟質円筒材を保持するう
えで把持傷や変形（衝突傷の誘発）を生じさせることが
ないようにすると共に、軟質円筒材の直径変更等にも簡
単且つ迅速に対応できるようにした軟質円筒材の保持方
法及び保持装置を提供することを目的とする。[0007] When the green case is thus scratched or collided with scratches, the surface of the vulcanized tire is left with scratches, which requires manual buffing. It was supposed to be. The present invention has been made in view of the above circumstances, and is intended to prevent gripping scratches and deformation (induction of collision scratches) when holding a soft cylindrical material such as a green tire radial case. It is an object of the present invention to provide a holding method and a holding device for a soft cylindrical material that can easily and quickly cope with a change in the diameter of the soft cylindrical material.
【０００８】[0008]
【課題を解決するための手段】本発明では、上記目的を
達成するために、次の技術的手段を講じた。即ち、本発
明に係る軟質円筒材の保持方法では、軟質円筒材の外周
部における少なくとも３箇所を、電動モータにより径方
向へ進退可能になされた把持部材で協同押圧しつつ、把
持部材の進出抵抗が増加するのに伴って電動モータに過
電流又は過負荷が生じたときに把持部材の進出を停止保
持させることを特徴としている。In order to achieve the above object, the present invention takes the following technical means. That is, in the method for holding a soft cylindrical material according to the present invention, at least three locations on the outer peripheral portion of the soft cylindrical material are cooperatively pressed by the gripping member that can be advanced and retracted in the radial direction by the electric motor, and the advance resistance of the gripping member is Is increased and the electric motor is overloaded or overloaded, the holding member is stopped and held.
【０００９】一方、本発明に係る軟質円筒材の保持装置
では、軟質円筒材の外周部に対しその周方向に所定間隔
をおいて当接・離反可能に設けられた少なくとも３個の
把持部材と、各把持部材を軟質円筒材の中心軸へ向けて
同期的に進退駆動させる電動モータと、電動モータに過
電流が生じたときに電動モータを停止させ且つ把持部材
の進出状況を停止保持させる駆動制御部とから成ること
を特徴としている。On the other hand, in the holding device for a soft cylindrical material according to the present invention, at least three gripping members provided so as to come into contact with and separate from the outer peripheral portion of the soft cylindrical material at a predetermined interval in the circumferential direction thereof. , An electric motor for synchronously advancing and retracting each gripping member toward the central axis of the soft cylindrical material, and a drive for stopping the electric motor and holding the advancing state of the gripping member when an overcurrent occurs in the electric motor It is characterized by comprising a control unit.
【００１０】また、上記駆動制御部に変えて、把持部材
を通じて電動モータに過負荷が伝えられたときに電動モ
ータの駆動力をスリップ状態にさせるトルク制限手段を
設けるようにしてもよい。前記各把持部材は、軟質円筒
材の保持空間を囲むように設けられたフレームに対し、
枢軸を介して保持空間の径方向へ揺動自在に保持されて
おり、上記枢軸には連動ホイールがまた前記電動モータ
には駆動ホイールが設けられ、各連動ホイール及び駆動
ホイール間に牽索部材が掛け渡されている構造とするこ
とが可能である。Further, instead of the drive control section, a torque limiting means may be provided for making the driving force of the electric motor slip when an overload is transmitted to the electric motor through the grip member. Each of the holding members, with respect to the frame provided so as to surround the holding space of the soft cylindrical material,
It is held swingably in the radial direction of the holding space via a pivot shaft, the pivot shaft is provided with an interlocking wheel, and the electric motor is provided with a drive wheel, and a interlocking member is provided between each interlocking wheel and the drive wheel. It is possible to have a structure that is suspended.
【００１１】前記保持装置は、二段階成形方法によるラ
ジアルタイヤ製造工程の第１成形作業部と第２成形作業
部との間で往復動可能に設けられた台車に対して設置さ
れたものとして実施するうえで好適である。It is assumed that the holding device is installed on a trolley provided so as to reciprocate between the first molding operation part and the second molding operation part in the radial tire manufacturing process by the two-step molding method. It is suitable for this.
【００１２】[0012]
【作用】電動モータを作動させて、把持部材が軟質円筒
材（グリーンケース等）の外周面を複数箇所で押圧した
状態とする。この状態で更に電動モータの作動を続ける
と、把持部材の進出が軟質円筒材に邪魔され、抵抗が生
じることに伴って電動モータには過電流又は過負荷が生
じるようになる。そこで、これらの現象が生じた時点で
把持部材による軟質円筒材の把持圧が所定値に達したと
みなし、駆動制御部による電流制御又はトルク制限手段
による機械的（スリップ）制御を行って、把持部材の進
出を停止保持する。The electric motor is operated so that the gripping member presses the outer peripheral surface of the soft cylindrical material (green case or the like) at a plurality of points. If the operation of the electric motor is further continued in this state, the advance of the gripping member is obstructed by the soft cylindrical material, and an overcurrent or an overload occurs in the electric motor due to the resistance. Therefore, when these phenomena occur, it is considered that the gripping pressure of the soft cylindrical material by the gripping member has reached a predetermined value, and current control by the drive control unit or mechanical (slip) control by the torque limiting means is performed to grasp the gripping force. Holds the advance of parts.
【００１３】複数設けられる把持部材に対し、それらを
チェーン等の牽索部材により電動モータと連動させるよ
うにすれば、構造の簡潔化及び小型化が図れる。If a plurality of gripping members are made to interlock with the electric motor by a check member such as a chain, the structure can be simplified and downsized.
【００１４】[0014]
【実施例】以下、本発明の実施例を図面に基づき説明す
る。二段階成形方法によるラジアルタイヤ製造工程を示
す図４において、本発明に係る保持装置１は、第１成形
作業部２と第２成形作業部３との間の走行通路４を往復
走行可能になされた台車５に対して、基枠６を介して設
置されている。Embodiments of the present invention will be described below with reference to the drawings. Referring to FIG. 4 showing the radial tire manufacturing process by the two-step molding method, the holding device 1 according to the present invention is capable of reciprocating in a traveling passage 4 between the first molding working part 2 and the second molding working part 3. It is installed on the carriage 5 via a base frame 6.
【００１５】なお、１０は第１成形作業部２が具備する
グリーンケース保持用のドラムであり、１１は必要時に
走行通路４上へ横移動してドラム１０との間でグリーン
ケースを保持するテールストックである。また１２は第
２成形作業部３が具備するグリーンケース又はグリーン
タイヤ保持用のドラムであり、１３は該ドラム１２に保
持されたグリーンケースにトレッド等を貼着するステッ
チャーである。Numeral 10 is a drum for holding the green case provided in the first molding work unit 2, and numeral 11 is a tail for laterally moving on the traveling passage 4 to hold the green case with the drum 10 when necessary. It is stock. Reference numeral 12 is a green case or a drum for holding a green tire included in the second molding work unit 3, and 13 is a stitcher for attaching a tread or the like to the green case held by the drum 12.
【００１６】図１に示すように保持装置１は、軟質円筒
材（グリーンケース）Ｇ１，Ｇ２を外嵌可能なように径
大に形成され、内部を保持空間１５とする円筒状フレー
ム１６に対し、その外周部に沿った等配位置に複数（図
面では６個とした）の把持部材１８が設けられ、これら
全部の把持部材１８が電動モータ１９（図４参照）によ
って同期的に駆動されるようになっている。As shown in FIG. 1, the holding device 1 is formed to have a large diameter so that the soft cylindrical materials (green cases) G1 and G2 can be externally fitted to the cylindrical frame 16 having a holding space 15 inside. , A plurality of (six in the drawing) gripping members 18 are provided at equidistant positions along the outer periphery thereof, and all of these gripping members 18 are synchronously driven by an electric motor 19 (see FIG. 4). It is like this.
【００１７】なお、把持部材１８は、軟質円筒材Ｇ１，
Ｇ２を円筒形に保形させつつ確実に把持するうえで、３
個以上必要とされている。把持部材１８は、フレーム１
６（即ち、軟質円筒材Ｇ１，Ｇ２）の中心軸に平行する
ように設けられた枢軸２０と、この枢軸２０に対して図
２及び図３に示すように一体回動可能に設けられた一対
の支持アーム２１と、これら支持アーム２１によって架
設保持された把持羽根２２と、枢軸２０に一体回動可能
に嵌着された連動ホイール２３とを有している。The gripping member 18 is made of a soft cylindrical material G1,
To hold G2 in a cylindrical shape and securely hold it, 3
More than one is needed. The gripping member 18 is the frame 1
6 (i.e., the soft cylindrical members G1, G2) provided in parallel with the central axis, and a pair that is integrally rotatable with respect to the central axis 20 as shown in FIGS. 2 and 3. The support arm 21, the gripping blade 22 erected and supported by the support arm 21, and the interlocking wheel 23 fitted to the pivot 20 so as to be integrally rotatable.
【００１８】２４は枢軸２０の軸受具であってフレーム
１６に固定されている。なお、フレーム１６には、支持
アーム２１が径方向内方へ出っ張るのを防止する（フレ
ーム１６が径大化するのを防ぐ）うえで、該支持アーム
２１との干渉を避ける開口部２５が形成されている。支
持アーム２１は、割り溝２５を有した挿通孔２６に枢軸
２０を差し込み、割り溝２５を狭めるようにボルト２７
を締めつけることで枢軸２０との一体回動を可能にして
あり、枢軸２０に対する角度調節が無段階で簡単に行え
るようになっている。また、把持羽根２２は、軟質円筒
材Ｇ１，Ｇ２に把持傷を付けることがないようにアルミ
ニウム合金等の比較的軟らかい金属又はゴム、樹脂等に
よって形成されている。Reference numeral 24 is a bearing of the pivot 20 and is fixed to the frame 16. An opening 25 is formed in the frame 16 to prevent the support arm 21 from projecting radially inward (to prevent the frame 16 from increasing in diameter) and to avoid interference with the support arm 21. Has been done. The support arm 21 inserts the pivot 20 into an insertion hole 26 having a split groove 25, and bolts 27 to narrow the split groove 25.
It is possible to rotate integrally with the pivot shaft 20 by tightening the. The angle adjustment with respect to the pivot shaft 20 can be easily performed in a stepless manner. The gripping blades 22 are formed of a relatively soft metal such as an aluminum alloy, rubber, resin, or the like so as not to scratch the soft cylindrical members G1 and G2.
【００１９】全ての把持部材１８の連動ホイール２３に
は、エンドレスチェーン又はエンドレスベルト等の牽索
部材３１が掛け渡されている。また、上記電動モータ１
９には駆動ホイール３０が設けられていると共に、この
駆動ホイール３０と最も近接した位置付けとなる把持部
材１８の枢軸２０には、上記牽索部材３１に対応する連
動ホイール２３とは別に、これと並列状に連動ホイール
２３Ａが設けられており、これら駆動ホイール３０と連
動ホイール２３Ａとの間に、エンドレスチェーン又はエ
ンドレスベルト等の牽索部材３２が掛け渡されている。A check member 31 such as an endless chain or an endless belt is stretched over the interlocking wheels 23 of all the holding members 18. In addition, the electric motor 1
9 is provided with a drive wheel 30, and the pivot 20 of the gripping member 18, which is positioned closest to the drive wheel 30, is provided separately from the interlocking wheel 23 corresponding to the above-mentioned choking member 31. The interlocking wheels 23A are provided side by side, and a straddling member 32 such as an endless chain or an endless belt is stretched between the drive wheel 30 and the interlocking wheels 23A.
【００２０】なお、一方の牽索部材３１は、その長手方
向中途部に設けられたテンションホイール３３によって
張力調整が可能となされ、他方の牽索部材３２は、モー
タブラケット３４の位置調節によって張力調整が可能と
なされている。電動モータ１９には、図５に示すような
駆動制御部３５が設けられている。この駆動制御部３５
は過電流継電器３６を具備して成り、電動モータ１９に
設定値を超える過電流が生じたときに、電動モータ１９
を停止させると共に、該電動モータ１９に対して電磁ブ
レーキ３７を作動させるように構成されている。過電流
継電器３６における過電流の設定値は任意に変更可能と
なっている。The tension of one of the straddling members 31 can be adjusted by a tension wheel 33 provided at an intermediate portion in the longitudinal direction, and the tension of the other straddling member 32 is adjusted by adjusting the position of a motor bracket 34. Is possible. The electric motor 19 is provided with a drive controller 35 as shown in FIG. This drive control unit 35
Is provided with an overcurrent relay 36, and when an overcurrent exceeding a set value occurs in the electric motor 19, the electric motor 19
Is stopped, and the electromagnetic brake 37 is operated with respect to the electric motor 19. The set value of overcurrent in the overcurrent relay 36 can be arbitrarily changed.
【００２１】このようにして成る保持装置１において、
いま、第１成形作業部２（図４参照）に対応して台車５
が停止し、軟質円筒材（例えばＧ１とする）を保持した
ドラム１０に対してフレーム１６が外嵌状にセットされ
ているとする。この状態で電動モータ１９を作動させる
と、全ての把持部材１８が保持空間１５（軟質円筒材Ｇ
１）の中心軸へ向けて同期状に揺動を開始し、やがて軟
質円筒材Ｇ１の外周部に当接してこれをセンタリングし
つつ次第に把持圧を高めるようになる。更に電動モータ
１９の作動が続くと、把持部材１８の揺動が軟質円筒材
Ｇ１に邪魔されて抵抗が生じるようになるので、電動モ
ータ１９には過電流が生じるようになる。駆動制御部３
５（図５参照）が予め設定された値を超える過電流を検
出すると、電動モータ１９を停止させ電磁ブレーキ３７
を作動させるので、把持部材１８は揺動を停止してその
進出状況を不動のものにする。このことで軟質円筒材Ｇ
１の把持圧は所定に保たれ、把持傷が生じたり、軟質円
筒材Ｇ１が変形したりするおそれはない。In the holding device 1 thus constructed,
Now, the trolley 5 corresponding to the first molding work unit 2 (see FIG. 4)
Is stopped, and the frame 16 is set to be fitted onto the drum 10 holding the soft cylindrical material (for example, G1). When the electric motor 19 is operated in this state, all the holding members 18 are held in the holding space 15 (the soft cylindrical material G).
The rocking starts synchronously toward the central axis of 1), and eventually contacts the outer peripheral portion of the soft cylindrical material G1 to center it and gradually increase the gripping pressure. When the electric motor 19 continues to operate, the swing of the gripping member 18 is obstructed by the soft cylindrical material G1 and resistance is generated, so that an overcurrent is generated in the electric motor 19. Drive controller 3
5 (see FIG. 5) detects an overcurrent exceeding a preset value, the electric motor 19 is stopped and the electromagnetic brake 37 is stopped.
Is operated, the gripping member 18 stops swinging to make its advancing state immobile. This makes the soft cylindrical material G
The gripping pressure of No. 1 is maintained at a predetermined value, and there is no possibility of gripping scratches or deformation of the soft cylindrical material G1.
【００２２】その後は、台車５（図４参照）が第２成形
作業部３に対応する位置まで走行し、ドラム１２へフレ
ーム１６（軟質円筒材Ｇ１）を外嵌状にセットした状態
とする。そして、電動モータ１９を上記とは逆作動さ
せ、把持部材１８のリセット位置を検出する近接スイッ
チ３８（図１参照）が作動する時点で電動モータ１９を
停止させる。After that, the trolley 5 (see FIG. 4) travels to a position corresponding to the second molding work unit 3, and the frame 16 (soft cylindrical material G1) is set on the drum 12 in an externally fitted state. Then, the electric motor 19 is reversely operated, and the electric motor 19 is stopped when the proximity switch 38 (see FIG. 1) for detecting the reset position of the grip member 18 is operated.
【００２３】ロット変えにより、上記の場合より径小な
軟質円筒材Ｇ２を保持する場合であっても、駆動制御部
３５は、把持部材１８が軟質円筒材Ｇ２に当接して所定
把持圧が生じるまで電動モータ１９の作動を続けるよう
になるので、常に同一条件で（把持傷等を生じさせない
で）軟質円筒材Ｇ２を保持することができる。ところ
で、上記のような電気的制御を行う駆動制御部３５に変
えて、図６に示すような機械的制御を行うトルク制限手
段４０を用いることも可能である。このトルク制限手段
４０は、電動モータ１９に設けられる駆動ホイール３０
と、公知のトルクリミッター４２とを組み合わせて成る
もので、電動モータ１９の回転軸１９ａと駆動ホイール
３０との間に設定値を超えるトルクが作用したときに、
スリップが起こるようになっている。スリップを起こす
トルク値の設定は、トルクリミッター４２に内蔵された
バネ（図示略）の締め具合により、任意に変更できるよ
うになっている。なお、このトルクリミッター４２は、
連動ホイール２３Ａに対して組み込むことも可能であ
る。Even if the soft cylindrical material G2 having a smaller diameter than the above case is held by changing the lot, the drive control section 35 causes the gripping member 18 to contact the soft cylindrical material G2 to generate a predetermined gripping pressure. Since the electric motor 19 continues to be operated up to this time, the soft cylindrical material G2 can always be held under the same conditions (without causing scratches or the like). By the way, it is also possible to use the torque limiting means 40 for performing mechanical control as shown in FIG. 6 in place of the drive control unit 35 for performing electrical control as described above. The torque limiting means 40 is a drive wheel 30 provided on the electric motor 19.
And a known torque limiter 42 are combined, and when a torque exceeding a set value acts between the rotating shaft 19a of the electric motor 19 and the drive wheel 30,
Slip is taking place. The setting of the torque value causing the slip can be arbitrarily changed by the tightening condition of a spring (not shown) built in the torque limiter 42. The torque limiter 42 is
It is also possible to incorporate it in the interlocking wheel 23A.
【００２４】本発明において、把持部材１８の形状や構
造又はその個数等は変更可能である。In the present invention, the shape and structure of the holding member 18 or the number thereof can be changed.
【００２５】[0025]
【発明の効果】本発明は、上述の構成を具備するもので
あって、把持部材が軟質円筒材（グリーンケース等）の
外周面を押圧したときに、電動モータに生じる過電流又
は過負荷により、駆動制御部による電流制御又はトルク
制限手段による機械的制御を行って、把持部材の進出を
停止保持するようになっているので、軟質円筒材の外径
が異なる場合でも、何ら調節作業を要さずとも把持圧を
所定条件（把持傷等を生じさせず、それでいて確実な把
持が可能な状況）に保つことができる。従って、ロット
変え時等において手間が省け、作業能率（装置の稼働効
率）が飛躍的に向上する。The present invention has the above-mentioned structure, and when the gripping member presses the outer peripheral surface of the soft cylindrical material (green case or the like), it is caused by an overcurrent or overload generated in the electric motor. Since the drive control unit performs current control or mechanical control by the torque limiting means to stop and hold the advance of the grip member, no adjustment work is required even when the outer diameter of the soft cylindrical material is different. In other cases, the gripping pressure can be maintained under a predetermined condition (a situation in which a gripping scratch or the like does not occur and yet reliable gripping can be performed). Therefore, it is possible to save time and labor at the time of changing the lot, and the work efficiency (the operation efficiency of the apparatus) is dramatically improved.
【００２６】また、軟質円筒材に把持傷や衝突傷が生じ
ないので、加硫済みタイヤ表面にできる傷をバフ仕上げ
をする必要もなくなり、生産能率の飛躍的向上及び品質
の向上が図れる。各把持部材を牽索部材により連動させ
る構造とすれば、構造の簡潔化及び小型化が図れる。Further, since the soft cylindrical material does not have gripping scratches or collision scratches, it is not necessary to buff the scratches formed on the surface of the vulcanized tire, and the production efficiency and quality can be dramatically improved. If the structure is such that each gripping member is interlocked by the straddling member, the structure can be simplified and downsized.
【００２７】なお、電動モータを用いているので、流体
圧シリンダを駆動源としていた従来とは異なり、把持部
材の移動量調節等に関してきめ細かい調節が可能且つ簡
単にできると共に、作動に加速変化を持たせて把持動作
に緩衝効果が得られるようにすることもできる利点があ
る。Since the electric motor is used, unlike the prior art in which a fluid pressure cylinder is used as a drive source, fine adjustments can be made for the adjustment of the amount of movement of the gripping member and the like, and the operation has an acceleration change. Therefore, there is an advantage that a buffering effect can be obtained in the gripping operation.
【図１】本発明に係る保持装置を示す正面断面図（図４
（ｂ）のＡ−Ａ線拡大断面図に相当）である。1 is a front sectional view showing a holding device according to the present invention (FIG.
It is equivalent to the AA line expanded sectional view of (b).
【図２】図１のＢ−Ｂ線矢視図である。FIG. 2 is a view taken along the line BB of FIG.
【図３】把持部材を拡大して示す一部破砕図である。FIG. 3 is a partially crushed view showing a grasping member in an enlarged manner.
【図４】保持装置を二段階成形方法によるタイヤ製造工
程に実施した状況の全体配置図であって、（ａ）は平面
図、（ｂ）は側面図である。FIG. 4 is an overall layout view of a situation where a holding device is applied to a tire manufacturing process by a two-step molding method, in which (a) is a plan view and (b) is a side view.
【図５】電動モータの駆動制御部を示す回路図である。FIG. 5 is a circuit diagram showing a drive controller of the electric motor.
【図６】電動モータのトルク制限手段を示す側面図であ
る。FIG. 6 is a side view showing a torque limiting unit of the electric motor.
１ 保持装置 ２ 第１成形作業部 ３ 第２成形作業部 ５ 台車 １６ フレーム １８ 把持部材 １９ 電動モータ ２０ 枢軸 ２３ 連動ホイール ３０ 駆動ホイール ３１ 牽索部材 ３２ 牽索部材 ３５ 駆動制御部 ４０ トルク制限手段 DESCRIPTION OF SYMBOLS 1 Holding device 2 1st shaping | molding work part 3 2nd shaping | molding work part 5 Bogie 16 Frame 18 Gripping member 19 Electric motor 20 Axis 23 Interlocking wheel 30 Drive wheel 31 Sweeping member 32 Sweeping member 35 Drive control part 40 Torque limiting means
Claims (5)
おける少なくとも３箇所を、電動モータ（１９）により
径方向へ進退可能になされた把持部材（１８）で協同押
圧しつつ、把持部材（１８）の進出抵抗が増加するのに
伴って電動モータ（１９）に過電流又は過負荷が生じた
ときに把持部材（１８）の進出を停止保持させることを
特徴とする軟質円筒材の保持方法。1. A gripping member while co-pressing at least three locations on the outer peripheral portion of the soft cylindrical material (G1) (G2) by a gripping member (18) that can be moved forward and backward in the radial direction by an electric motor (19). Holding of the soft cylindrical member, characterized in that the advancing resistance of (18) increases and the advancing of the gripping member (18) is stopped and held when overcurrent or overload occurs in the electric motor (19). Method.
対しその周方向に所定間隔をおいて当接・離反可能に設
けられた少なくとも３個の把持部材（１８）と、各把持
部材（１８）を軟質円筒材（Ｇ１）（Ｇ２）の中心軸へ
向けて同期的に進退駆動させる電動モータ（１９）と、
電動モータ（１９）に過電流が生じたときに電動モータ
（１９）を停止させ且つ把持部材（１８）の進出状況を
停止保持させる駆動制御部（３５）とから成ることを特
徴とする軟質円筒材の保持装置。2. At least three gripping members (18) provided so as to be able to come into contact with and separate from the outer peripheral portion of the soft cylindrical material (G1) (G2) at a predetermined interval in the circumferential direction, and each gripping member. An electric motor (19) for driving the member (18) forward and backward synchronously toward the central axes of the soft cylindrical members (G1) (G2);
And a drive control section (35) for stopping the electric motor (19) and holding the advance state of the gripping member (18) when an overcurrent occurs in the electric motor (19). Material holding device.
対しその周方向に所定間隔をおいて当接・離反可能に設
けられた少なくとも３個の把持部材（１８）と、各把持
部材（１８）を軟質円筒材（Ｇ１）（Ｇ２）の中心軸へ
向けて同期的に進退駆動させる電動モータ（１９）と、
把持部材（１８）を通じて電動モータ（１９）に過負荷
が伝えられたときに電動モータ（１９）の駆動力をスリ
ップ状態にさせるトルク制限手段（４０）とから成るこ
とを特徴とする軟質円筒材の保持装置。3. At least three gripping members (18) provided so as to be able to come into contact with and separate from the outer peripheral portion of the soft cylindrical material (G1) (G2) at a predetermined interval in the circumferential direction, and each gripping member. An electric motor (19) for driving the member (18) forward and backward synchronously toward the central axes of the soft cylindrical members (G1) (G2);
And a torque limiting means (40) for causing the driving force of the electric motor (19) to slip when an overload is transmitted to the electric motor (19) through the gripping member (18). Holding device.
（Ｇ１）（Ｇ２）の保持空間（１５）を囲むように設け
られたフレーム（１６）に対し、枢軸（２０）を介して
保持空間（１５）の径方向へ揺動自在に保持されてお
り、上記枢軸（２０）には連動ホイール（２３）がまた
前記電動モータ（１９）には駆動ホイール（３０）が設
けられ、各連動ホイール（２３）（２３Ａ）及び駆動ホ
イール（３０）間に牽索部材（３１）（３２）が掛け渡
されていることを特徴とする請求項２又は請求項３記載
の軟質円筒材の保持装置。4. The gripping members (18) are connected to a frame (16) provided so as to surround a holding space (15) of the soft cylindrical members (G1) and (G2) via a pivot (20). The holding space (15) is swingably held in the holding space (15), the pivot shaft (20) is provided with an interlocking wheel (23), and the electric motor (19) is provided with a drive wheel (30). Holding of the soft cylindrical material according to claim 2 or 3, characterized in that a chording member (31) (32) is bridged between the interlocking wheel (23) (23A) and the drive wheel (30). apparatus.
によるラジアルタイヤ製造工程の第１成形作業部（２）
と第２成形作業部（３）との間で往復動可能に設けられ
た台車（５）に対して設置され、グリーンケースの搬送
に用いられることを特徴とする請求項２乃至請求項４の
いずれかに記載の軟質円筒材の保持装置。5. The first molding work section (2) of the radial tire manufacturing process according to the two-stage molding method, wherein the holding device (1) is used.
The carriage is installed on a carriage (5) provided so as to be capable of reciprocating between the second molding working unit (3) and the second molding working unit (3), and is used for carrying a green case. The holding device for the soft cylindrical material according to any one of claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6149762A JP2528263B2 (en) | 1994-06-30 | 1994-06-30 | Holding method and holding device for soft cylindrical material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6149762A JP2528263B2 (en) | 1994-06-30 | 1994-06-30 | Holding method and holding device for soft cylindrical material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0811235A JPH0811235A (en) | 1996-01-16 |
| JP2528263B2 true JP2528263B2 (en) | 1996-08-28 |
Family
ID=15482192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6149762A Expired - Lifetime JP2528263B2 (en) | 1994-06-30 | 1994-06-30 | Holding method and holding device for soft cylindrical material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2528263B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4570320B2 (en) * | 2002-10-21 | 2010-10-27 | 株式会社ブリヂストン | Method and apparatus for holding annular member |
-
1994
- 1994-06-30 JP JP6149762A patent/JP2528263B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0811235A (en) | 1996-01-16 |
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