Abstract: A method and apparatus for producing round brushes having bristles clamped between two wire portions of a folded wire, comprising a feed station and a subsequent finishing station, wherein in the feed station a wire is bent between two counter holders, and the feed station comprises a bristle feed device and a rotatable gripper adapted to grip the bent wire and twist it during the feed of bristles to anchor the bristles in the wire. In the finishing station, the twisted wire is held by a stationary gripper and further twisted by the rotatable gripper. The bristles are then cut on their outer side.

Abstract: A method and apparatus for producing round brushes having bristles clamped between two wire portions of a folded wire, comprising a feed station and a subsequent finishing station, wherein in the feed station a wire is bent between two counter holders, and the feed station comprises a bristle feed device and a rotatable gripper adapted to grip the bent wire and twist it during the feed of bristles to anchor the bristles in the wire. In the finishing station, the twisted wire is held by a stationary gripper and further twisted by the rotatable gripper. The bristles are then cut on their outer side.

Abstract: An apparatus for manufacturing round brushes includes motor-driven driven rollers (22, 26) which on twisting of the wire halves urge wire to a rotating gripper (60). The wire material slides along diverters (52, 54).

Abstract: An apparatus for manufacturing round brushes includes motor-driven driven rollers (22, 26) which on twisting of the wire halves urge wire to a rotating gripper (60). The wire material slides along diverters (52, 54).

Abstract: An automatic punching machine for making brushes comprises a slide connected to a first actuator for receiving bundles of fibers and feeding them to a brush body; a needle connected to a second actuator for inserting the bundles of fibers inside corresponding openings of the brush body; a first and a second sensor for detecting a first and second signal representing the position of the slide and of the needle; a memory containing data of a trend of a control parameter representing the position of the slide as a function of a synchronization parameter having a predetermined relationship with a parameter representing the needle position; a processor programmed for deriving in real time values of the synchronization parameter and for controlling the first actuator by feedback as a function of the first and second signals, the synchronization parameter and the data contained in the memory.

Abstract: An automatic punching machine for making brushes comprises a slide connected to a first actuator for receiving bundles of fibers and feeding them to a brush body; a needle connected to a second actuator for inserting the bundles of fibers inside corresponding openings of the brush body; a first and a second sensor for detecting a first and second signal representing the position of the slide and of the needle; a memory containing data of a trend of a control parameter representing the position of the slide as a function of a synchronization parameter having a predetermined relationship with a parameter representing the needle position; a processor programmed for deriving in real time values of the synchronization parameter and for controlling the first actuator by feedback as a function of the first and second signals, the synchronization parameter and the data contained in the memory.