JP2015139890A5 - - Google Patents

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JP2015139890A5
JP2015139890A5 JP2014012392A JP2014012392A JP2015139890A5 JP 2015139890 A5 JP2015139890 A5 JP 2015139890A5 JP 2014012392 A JP2014012392 A JP 2014012392A JP 2014012392 A JP2014012392 A JP 2014012392A JP 2015139890 A5 JP2015139890 A5 JP 2015139890A5
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reinforcing fiber
twist
unit
captured image
twisted
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JP2015139890A (en
JP6235356B2 (en
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強化繊維RFは、給糸口部41の開口部42の下側の長辺に沿って送り出される。ここで、開口部42の下側の長辺には、面圧検出部46が設けられている。面圧検出部46は、例えば、開口部42の下側の長辺に沿って配列された複数個の荷重センサーによって構成される。面圧検出部46は、強化繊維RFから受ける面圧を強化繊維RFの幅方向における位置ごとに検出し、その検出結果を制御部101に出力する。面圧検出部46によって面圧を検出する理由については後述する。 The reinforcing fiber RF is sent out along the long side below the opening 42 of the yarn feeder 41. Here, a surface pressure detection unit 46 is provided on the long side below the opening 42. The surface pressure detection unit 46 includes, for example, a plurality of load sensors arranged along the lower long side of the opening 42. The surface pressure detection unit 46 detects the surface pressure received from the reinforcing fiber RF for each position in the width direction of the reinforcing fiber RF, and outputs the detection result to the control unit 101. The reason why the surface pressure is detected by the surface pressure detector 46 will be described later.

制御部101は、水平移動駆動部44を制御して給糸口部41を水平方向に変位させ、ライナー10に対する強化繊維RFの巻き付け角度や巻き付け位置を制御する。なお、給糸口部41は、その水平移動距離を短くしつつ強化繊維RFの巻き付け角度や巻き付け位置の制御性を確保するために、ライナー保持部20から十分に離間された位置に設けられていることが望ましい。 The control unit 101 controls the horizontal movement driving unit 44 to displace the yarn feeder 41 in the horizontal direction, and controls the winding angle and winding position of the reinforcing fiber RF around the liner 10. The yarn feeder 41 is provided at a position sufficiently separated from the liner holding part 20 in order to secure controllability of the winding angle and winding position of the reinforcing fiber RF while shortening the horizontal movement distance. It is desirable.

撮像部51は支持アーム部52によって保持されており、支持アーム部52は給糸口部41に連結されている。これによって、給糸口角度αの変動に応じて撮像部51の撮影方向がリニアに変動する。照明部53は、撮像部51と一体的に支持アーム部52に取り付けられており、撮像部51の撮像対象領域を照射する。 The imaging unit 51 is held by a support arm unit 52, and the support arm unit 52 is coupled to the yarn feeder 41. As a result, the shooting direction of the imaging unit 51 varies linearly according to the variation in the yarn feeder angle α. The illumination unit 53 is attached to the support arm unit 52 integrally with the imaging unit 51 and irradiates the imaging target area of the imaging unit 51.

図5は、繊維監視部50の撮像部51によって取得される撮像画像IMと強化繊維RFとの対応を示す概略図である。図5の(a)欄と(b)欄とはそれぞれ、撮像画像IMの一例と、その撮像画像IMが取得されたときの撮影位置PB(図1)における強化繊維RFの概略断面の一例と、の対応を示している。図5の(a)欄は、強化繊維RFが第1の捻れ態様(図3の(b)欄)で捻れたときを示しており、図5の(b)欄は、強化繊維RFが第2の捻れ態様(図3の(c)欄)で捻れたときを示している。図5の(a)欄と(b)欄とにはそれぞれ、強化繊維RFに捻れが生じていないときの状態が破線で図示されている。 FIG. 5 is a schematic diagram illustrating the correspondence between the captured image IM acquired by the imaging unit 51 of the fiber monitoring unit 50 and the reinforcing fiber RF. Each of the columns (a) and (b) in FIG. 5 is an example of the captured image IM and an example of a schematic cross-section of the reinforcing fiber RF at the imaging position PB (FIG. 1) when the captured image IM is acquired. The correspondence of is shown. The (a) column in FIG. 5 shows the case where the reinforcing fiber RF is twisted in the first twist mode (the (b) column in FIG. 3), and the (b) column in FIG. 2 shows a twisted state (twisted in FIG. 3 (c)). Each of the columns (a) and (b) in FIG. 5 shows a state when the reinforcing fiber RF is not twisted by broken lines.

上述したように、繊維監視部50の撮像部51は、給糸口部41の回転に合わせて撮影方向が変動する。そのため、強化繊維RFに捻れが生じておらず、撮影位置PBと給糸口部41の近傍位置PAとで強化繊維RFの幅方向が一致する場合には、撮像画像IMに写り込む強化繊維RFの幅WDは最大となる。強化繊維RFに第1または第2の捻れ態様の捻れが生じると、撮像画像IM中における強化繊維RFの像の幅WDは、その捻れの度合いに応じて小さくなる。そこで、捻れ角検出部102は、撮像画像IMから強化繊維RFの像の幅WDを撮影位置PBにおける強化繊維RFの捻れの度合いを示す値として取得する。 As described above, the imaging direction of the imaging unit 51 of the fiber monitoring unit 50 varies with the rotation of the yarn feeder unit 41. Therefore, when the reinforcing fiber RF is not twisted and the width direction of the reinforcing fiber RF coincides between the photographing position PB and the vicinity position PA of the yarn feeder 41, the reinforcing fiber RF reflected in the captured image IM The width WD is the maximum. When the twist of the first or second twist mode occurs in the reinforcing fiber RF, the width WD of the image of the reinforcing fiber RF in the captured image IM becomes small according to the degree of the twist. Therefore, the twist angle detection unit 102 acquires the image width WD of the reinforcing fiber RF from the captured image IM as a value indicating the degree of twisting of the reinforcing fiber RF at the photographing position PB.

ここで、強化繊維RFに第2の捻れ態様の捻れが生じている場合には、撮像画像IM中における強化繊維RFの幅方向の端部位置が、第1の捻れ態様のときとは異なる。従って、撮像画像IMに基づいて強化繊維RFに生じている捻れが第1と第2の捻れ態様のいずれであるかを特定することができる。そこで、捻れ角検出部102は、撮像画像IMにおける強化繊維RFの幅方向における端部の位置に基づいて、強化繊維RFに生じている捻れが第1と第2の捻れ態様のいずれであるかを特定する。 Here, when the reinforcing fiber RF is twisted in the second twisted form, the end position in the width direction of the reinforcing fiber RF in the captured image IM is different from that in the first twisted form. Therefore, it is possible to specify whether the twist generated in the reinforcing fiber RF is the first twist mode or the second twist mode based on the captured image IM. Therefore, the twist angle detection unit 102 determines whether the twist generated in the reinforcing fiber RF is the first twist mode or the second twist mode based on the position of the end portion in the width direction of the reinforcing fiber RF in the captured image IM. Is identified.

捻れ角検出部102は、当該マップMPと、取得撮影位置CBにおける捻れの度合いを示す幅WDと、に基づいてライナー10の近傍位置PCにおける強化繊維RFの捻れ角θtを取得する。なお、マップMPは、第1と第2の捻れ態様のそれぞれに対応するものが予め準備されており、捻れ角検出部102は、撮像画像IMに基づいて特定された捻れ態様に対応するマップMPを読み込んで用いる。 The twist angle detection unit 102 acquires the twist angle θt of the reinforcing fiber RF at the position PC in the vicinity of the liner 10 based on the map MP and the width WD indicating the degree of twist at the acquisition photographing position CB. The map MP corresponding to each of the first and second twist modes is prepared in advance, and the twist angle detection unit 102 maps the map MP corresponding to the twist mode specified based on the captured image IM. Is read and used.

第2実施形態のFW装置100Aは、繊維監視部50Aが撮像部51に代えて第1と第2の反射率測定部51Aa,51Abを有している点以外は、第1実施形態のFW装置100(図1)とほぼ同じ構成を有している。なお、第2実施形態の繊維監視部50Aは、特に、強化繊維RFの円滑な巻き付けが阻害される可能性が高い第2の捻れ態様の強化繊維RFの捻れ(図3の(c)欄)の発生を検出する。 The FW device 100A according to the second embodiment is the same as the FW device according to the first embodiment except that the fiber monitoring unit 50A includes first and second reflectance measurement units 51Aa and 51Ab instead of the imaging unit 51. The configuration is almost the same as 100 (FIG. 1). Note that the fiber monitoring unit 50A of the second embodiment, in particular, twists of the reinforcing fibers RF in the second twist mode in which the smooth winding of the reinforcing fibers RF is likely to be hindered (column (c) in FIG. 3). Detect the occurrence of

第1と第2の透過率測定部51Ba,51Bbはそれぞれ、1組の発光素子54と受光素子55とを備えている。各透過率測定部51Ba,51Bbの発光素子54と受光素子55とは、強化繊維RFの幅方向の各端部において、強化繊維RFを挟んで対向し合うように配置されている。各透過率測定部51Ba,51Bbにおいて、発光素子54は強化繊維RFに向かって検査光を照射し、受光素子55は強化繊維RFの端部の横を通過して漏れてくる光を受光する。各透過率測定部51Ba,51Bbはそれぞれ、発光素子54の発光量に対する受光素子55の受光量の割合を透過率として制御部101に出力する。 Each of the first and second transmittance measuring units 51Ba and 51Bb includes a pair of a light emitting element 54 and a light receiving element 55. The light emitting element 54 and the light receiving element 55 of each transmittance measuring unit 51Ba, 51Bb are arranged to face each other across the reinforcing fiber RF at each end in the width direction of the reinforcing fiber RF. In each of the transmittance measuring units 51Ba and 51Bb, the light emitting element 54 emits inspection light toward the reinforcing fiber RF, and the light receiving element 55 receives light leaking through the end of the reinforcing fiber RF. Each of the transmittance measuring units 51Ba and 51Bb outputs the ratio of the amount of light received by the light receiving element 55 to the amount of light emitted from the light emitting element 54 as a transmittance to the control unit 101.

D4.変形例4:
上記第1実施形態のFW装置100では、制御部101は、面圧検出部46の検出結果に基づいて強化繊維RFの捻れ方向を特定している。これに対して、制御部101は、撮像画像IMに写っている強化繊維RFの像に基づいて、強化繊維RFの捻れ方向を特定しても良い。例えば、制御部101は、撮像画像IM中の強化繊維RFの陰影の態様から強化繊維RFの捻れ方向を特定しても良い。
D4. Modification 4:
In the FW device 100 according to the first embodiment, the control unit 101 specifies the twist direction of the reinforcing fiber RF based on the detection result of the surface pressure detection unit 46. On the other hand, the control unit 101 may specify the twist direction of the reinforcing fiber RF based on the image of the reinforcing fiber RF shown in the captured image IM. For example, the control unit 101 may specify the twist direction of the reinforcing fiber RF from the shaded form of the reinforcing fiber RF in the captured image IM.

D5.変形例5:
上記各実施形態のFW装置100,100A,100Bでは、強化繊維RFの捻れ状態が、撮像部51の撮像画像IMや、反射率測定部51Aa,51Abの計測結果、透過率測定部51Ba,51Bbの計測結果に基づいて検出されている。これに対して、強化繊維RFの捻れ状態は、他の手段によって検出されても良い。例えば、強化繊維RFの捻れ状態は、強化繊維RFの幅方向における各端部に配置された距離センサーによって、距離センサーに対する強化繊維RFの端部位置の距離の変化に基づいて検出されても良い。
D5. Modification 5:
In the FW devices 100, 100A, and 100B of each of the embodiments described above, the twisted state of the reinforcing fiber RF indicates that the captured image IM of the imaging unit 51, the measurement results of the reflectance measurement units 51Aa and 51Ab, and the transmittance measurement units 51Ba and 51Bb. It is detected based on the measurement result. On the other hand, the twisted state of the reinforcing fiber RF may be detected by other means. For example, the twisted state of the reinforcing fiber RF may be detected based on a change in the distance of the end position of the reinforcing fiber RF with respect to the distance sensor by a distance sensor disposed at each end in the width direction of the reinforcing fiber RF. .

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