Nitto Boseki Co., Ltd.

Michio Sato

Shin Kasai

Yutaka Kawaguchi

Toshiaki Kikuchi

Koji Nakazawa

Kogi Nakazawa

Shin Kasasi

A high pressure fluid processing device is disclosed including a frame positioned across a passage for conveying workpieces, a header having a plurality of nozzles thereon arranged at intervals (P), a driving mechanism for moving the nozzles on circles with the radius (e), and the radius (e) and the nozzle interval (P) satisfying the equation:

High pressure fluid processing device

A glass fiber strand winding apparatus having a primary strand winding portion and a preliminary strand winding portion comprises a flanged portion the diameter of which is greater than that of the preliminary winding portion and at least one groove axially provided in the preliminary winding portion and the flanged portion from the inner end of the preliminary winding portion.

Method of winding a strand of relatively rigid glass fiber onto a

Apparatus for reciprocating a yarn guide to wind yarn on a bobbin including a rotating scroll cam provided with an endless helical cam groove and a second cam groove in superposed relationship with the endless cam groove and having a greater lead angle than the endless cam groove over a predetermined distance adjacent each turning point. The yarn guide is provided with an elongate ship-shaped cam follower slidably fitted into the endless cam groove and pivotable with respect to the yarn guide and a cylindrical cam follower slidably fitted into the second cam groove. The width of the portion of the endless cam groove adjacent each turning point is gradually increased toward the turning point so as to permit the elongate cam follower to smoothly reverse its direction when it passes the turning point.

Traverse motion for use with apparatus for winding continuous elongate

An apparatus for winding a strand of glass fibers drawn from a bushing, having a rotatable turret and at least two winding collets mounted on the turret and adapted to be brought into a winding position one by one upon rotation of the turret. Each winding collet is provided at its free end with a waste strand winding portion having a frusto-conical strand guide surface coaxially extending with the collet and converged towards its free end, an annular strand stopping wall radially outwardly extending from the free end of the frusto-conical guide surface, at least one crescent-shaped wall surface extending radially inwardly from a portion of the outer periphery at the free end of the guide surface and formed thereon with a plurality of parallel grooves extending at a right angle to the diameter of the guide surface, and a crescent-shaped flat portion extending from a portion of the outer periphery of the stopping wall in confronting spaced relationship with the crescent-shaped wall surface. Upon the transferring of the strand from the full collet to the empty collet, when the strand is brought onto the frusto-conical guide surface, it is moved along the guide surface toward its free end, then slipped down along the crescent-shaped flat portion and finally caught by one of parallel grooves. The strand thus caught is automatically cut at a point in contact with the edge of the groove during subsequent rotation of both of the full and the empty collets.

Glass fiber strand winding apparatus

A traverse motion used in combination with a device for winding a continous elongate element such as a strand consisting of a large number of glass filaments drawn through a bushing with a large number of nozzles. In the traverse motion of the type including a scroll cam with an endless cam groove consisting of at least one pair of right- and left-hand grooves joined at each end and a strand guide which has a cam follower fitted in the endless cam groove of the scroll cam and is adapted to reciprocate along a straight path in parallel with the axis of the shaft of the scroll cam when the latter is rotated, the lead angle of the endless cam groove is increased adjacent to its ends or adjacent to each returning point of the cam follower so that the guide is increased in velocity adjacent to each returning point. With a conventional scroll cam the traversing motion of the strand at the downstream of the strand guide lags behind that of the strand guide in the case of winding the strand into package on a spool so that the ends of a package being formed are increased in diameter as compared with the intermediate portion between them. When the strand guide is increased in the manner described above adjacent to each returning point, the flange-like increased-diameter distortions at the ends of the package can be avoided and high-quality packages with square ends can be produced.

Growing community of inventors

Fukushima, Japan

Michio Sato