Method and apparatus for making articles having bristles

Details Method and apparatus for making articles having bristles Method and apparatus for making articles having bristles

B - Operations, Transporting

29

C

B29C 65/08 (2006.01) A46B 3/00 (2006.01) B32B 5/08 (2006.01)

Patent

CA 2334548

Methods and apparatuses for making elongated articles having two rows of monofilament segments connected to a base string are disclosed. One method and device includes feeding at least one base string (64, 66, 68, 70) along an axis, wrapping at least one monofilament (86) around the axis to produce a number of monofilament wraps per length of base string (64, 66, 68, 70) which are transported by the base string (64, 66, 68, 70), bonding the wraps (86) to the base string (64, 66, 68, 70) with ultrasonic energy including a horn (94, 96), and cutting the warps (86) at a point downstream of where the wraps (86) are bonded to the base string (64, 66, 68, 70).

L'invention concerne des procédés et des appareils permettant de fabriquer des articles allongés pourvus de deux rangées de segments de monofilaments, lesquels sont reliés à un socle. Selon un procédé et un dispositif de cette invention, on place au moins un socle (64, 66, 68, 70) le long d'un axe, puis on enroule au moins un monofilament (86) autour de cet axe de manière à produire plusieurs enroulements de monofilaments sur la longueur de chaque socle (64, 66, 68, 70), ces enroulements reposant sur ledit socle (64, 66, 68, 70). Ensuite, on fixe ces enroulements (86) au socle (64, 66, 68, 70) par énergie ultrasonore à l'aide d'un pavillon (94, 96), avant de couper lesdits enroulements (86) à un point situé en-deçà du niveau où ces enroulements (86) sont fixés au socle (64, 66, 68, 70).

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