초록 ▼

Apparatus for filling bags and simultaneously providing complete, controlled collection and discharge of dust generated from particulate material with which the bags are filled. The discharge end of a spout positioned under a hopper is formed by a pair of closure members movable between open and clo

Apparatus for filling bags and simultaneously providing complete, controlled collection and discharge of dust generated from particulate material with which the bags are filled. The discharge end of a spout positioned under a hopper is formed by a pair of closure members movable between open and closed positions on which the mouth of a bag may be clamped by clamping devices movable into clamping engagement with the top, opposed faces of the bag against the outside of the spout closure members. Dust collectors are provided on the spout and are so located as to be in fluid flow communication with the interior of the top of a bag hung on the spout discharge end. Suitable conduits connect the dust collectors with a vacuum source to remove all dust generated when particulate material is discharged from the hopper, through the spout, into a bag. A flexible liner is also hung inside the spout to contain the prevent the escape of dust during bag filling operations.

대표청구항 ▼

Apparatus for filling bags comprising: hopper means for containing particulate material to be discharged into bags; a spout positioned to receive particulate material from said hopper, said spout having a discharge end defined by closure members movable between open and closed positions for the cont

Apparatus for filling bags comprising: hopper means for containing particulate material to be discharged into bags; a spout positioned to receive particulate material from said hopper, said spout having a discharge end defined by closure members movable between open and closed positions for the controlled discharge of particulate material into bags hung on said spout wherein said spout closure members comprise a pair of rigid closure devices on the bottom end of said spout movable between a closed position wherein they are in closing contact with each other and an open position wherein they are spaced apart; clamp means on said spout for releasably holding opposed faces of the mouth of a bag on said spout discharge end wherein said clamp means comprises a pair of clamping members mechanically movable inwardly and outwardly towards and away from said spout closure devices for selective clamping engagement of the top ends of the opposite faces of a bag therebetween, with the opposite faces of the bag held against the outside of said pair of spout closure devices by respective ones of said pair of clamping members, whereby said spout closure devices will be aligned with the interior of a bag hung on the spout; a dust collector on at least one side of said spout discharge end having a collection port so location as to be in direct, overlying relation to the top end of one side wall of a bag hung on said spout, with said port in fluid flow communication with the interior space of a bag immediately inside of said one side wall thereof; a generally tubular liner made of flexible material suspended inside of said spout in confining relation to the interior of said discharge end and said movable closure members, said liner having an upper receiving end communicating with said hopper and an open discharge end adjacent the discharge end of said spout, whereby said liner is so constructed and arranged as to confine particulate material discharging from said hopper and prevent the escape of dust to the surrounding atmosphere even when said movable closure members are open; and conduit means connected to said port for fluid flow communication with a vacuum source.