Feed arrangement for pick-and-place machine
First Claim
1. A feed arrangement for chips in a pick-and-place machine comprisinga first guide means having an entrance for receiving chips and means for directing said chips to a predetermined location,a second guide means having an outlet for delivering chips one at a time at a location adjacent said entrance,a drive member,means for pivotally mounting said drive member for rotational movement, said drive member including an unbalanced mass for causing such rotation from a first position to a second position by gravity, said second position being adjacent said entrance,said drive member having a portion thereof adjacent said entrance and engageable with a chip delivered by said second guide means for pushing said chip into said entrance of said first guide means upon such rotational movement of said drive member,and means for positioning said drive member in said first position following such rotational movement thereof.
4 Assignments
0 Petitions
Accused Products
Abstract
This invention provides a feed arrangement for chips in a pick-and-place machine in which a vertical magazine feeds chips into a groove in a vibrating table, with the chips being advanced toward a pick station by a gravity actuated lever which will be stopped in the event the groove is full of chips rather than causing the machine to jam or cause damage.
9 Citations
16 Claims
-
1. A feed arrangement for chips in a pick-and-place machine comprising
a first guide means having an entrance for receiving chips and means for directing said chips to a predetermined location, a second guide means having an outlet for delivering chips one at a time at a location adjacent said entrance, a drive member, means for pivotally mounting said drive member for rotational movement, said drive member including an unbalanced mass for causing such rotation from a first position to a second position by gravity, said second position being adjacent said entrance, said drive member having a portion thereof adjacent said entrance and engageable with a chip delivered by said second guide means for pushing said chip into said entrance of said first guide means upon such rotational movement of said drive member, and means for positioning said drive member in said first position following such rotational movement thereof.
-
4. A chip feeding arrangement for a pick-and-place machine comprising
a first guide means for receiving a plurality of superimposed chips, said first guide means having an exit at a predetermined location and being elevated so that said chips move by gravity through said first guide means to said exit, a second guide means having an extrance adjacent said exit and dimensioned to conduct said chips in an edge-to-edge relationship to a predetermined location for being individually picked up, a drive member, pivot means for supporting said drive member for pivotal movement between a first position and a second position, said drive member having an upper end portion remote from said exit and said entrance when said drive member is in said first position thereof and adjacent said exit and within said entrance when said drive member is in said second position thereof for thereby engaging and advancing a chip from said exit through said entrance into said second guide means upon movement of said drive member from said first position to said second position thereof, said drive member including a portion on one side of said pivotal mounting means for providing sufficient mass to cause said drive member to rotate by gravity from said first position to said second position thereof, and means for rotating said drive member from said second position to said first position and then releasing said drive member for said movement from said first position to said second position thereof.
-
8. A chip feeding arrangement for a pick-and-place machine comprising
an upstanding guide member dimensioned to receive a plurality of chips positioned one on top of the other, said guide member having a bottom exit for discharging said chips therefrom by gravity, a vibrating table means, said table means including a groove in its upper surface having one portion beneath said exit of said guide means for receiving chips therefrom and another portion spaced therefrom for presenting said chips for being picked up, said table means including a slot therein extending longitudinally into said groove beneath said exit, a drive member, means for pivotally mounting said drive member for rotation about a predetermined axis from a first position to a second position, said drive member having an upper end portion received in said slot and beneath said exit when said drive member is in said second position and remote from said exit from said drive member is in said first position, whereby a chip can be discharged from said exit into said groove when said drive member is in said first position, said drive member including a portion projecting beyond said pivotal mounting means for providing an unbalanced mass such as to cause said drive member to rotate by gravity from said first position to said second position, said upper portion of said drive member having a forward edge engageable with a chip so discharged into said groove upon said rotation of said drive member from said first position to said second position for advancing said chip in said groove toward said second portion of said groove, and cam means for rotating said drive member from said second position to said first position and thereafter releasing said drive member for said movement from said first position to said second position.
-
16. A feed arrangement for chips in a pick-and-place machine comprising
a first guide means having an entrance for receiving chips and means for directing said chips to a predetermined location, a second guide means for delivering chips one at a time at a location adjacent said entrance, a drive member, said drive member being movable by gravity from a first position to a second position, said drive member in said second position thereof being adjacent said entrance, and being engageable with a chip delivered by said second guide means for pushing said chip into said entrance in said first guide means upons said movement of said drive member by gravity from said first position to said second position, and means for positioning said drive member in said first position thereof following such movement of said drive member from said first position to said second position thereof, and then releasing said drive member to subsequently so moving from said first position to said second position thereof.
Specification