Mydata Automation Ab

Johan Berg

Kenth A Nilsson

Johan Kronstedt

William Holm

Mikael Bergman

Håkan Sandell

Häkan Sandell

Mårten Lundberg

Nicholas Glazer

Tommy Andersson

Nils Fyhr

A method and a system for jetting droplets of viscous medium, such as solder paste, onto a substrate, such as an electronic circuit board. The volume of the droplets are adjusted by regulating the amount of viscous medium that is fed into a jetting nozzle for subsequent jetting of the viscous medium droplets therefrom. The exit velocity of the jetted droplets is adjusted or maintained substantially constant by regulating the velocity with which the viscous medium is impacted. Furthermore, the rate at which viscous medium is fed, for instance by a feed screw, into the nozzle is adjusted in order to regulate the feeding time required for feeding the viscous medium into the jetting nozzle, for instance in order to maintain a constant feeding time.

Jetting device and method at a jetting device

A jetting device and a method of jetting droplets of viscous medium onto a substrate. The jetting device includes a jetting outlet through which the droplets are jetted. The jetting device further includes a wall located at the jetting outlet, downstream of the jetting outlet seen in the jetting direction. The wall is provided with an orifice through which jetted droplets are permitted to pass through. A gaseous flow is provided within the space past the jetting outlet such that an adverse effect on the performance of the jetting device is prevented, the adverse effect resulting from the accumulation of viscous medium residue at the jetting outlet.

Jetting device and a method of jetting device

This invention relates to a device for jetting droplets of a particle filled viscous medium. The device has a nozzle, an eject mechanism connected to the nozzle, a medium feeding mechanism connected to the eject mechanism, a particle filled viscous medium container connected to the medium feeding mechanism, and a filter arranged between an outlet of the particle filled viscous medium container and the medium feeding mechanism.

Device for jetting droplets of a particle filled viscous medium

The present invention refers to a method and a device for jetting droplets of a viscous medium onto an electronic circuit board. According to the invention, the viscous medium is applied from a viscous medium supply container to an eject chamber through a tubular passage using a rotatable feed screw arranged within the tubular passage. The viscous medium is then jetted from the eject chamber through an eject nozzle by the rapid decreasing of the volume of the chamber.

Device and method for jetting droplets

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Uppsala, Sweden

Johan Berg