NONCONTACT TYPE SUCTION GRIPPING DEVICE AND NONCONTACT TYPE SUCTION GRIPPING FRAME HAVING THE SAME
A noncontact type suction gripping device suitable for lifting a flat object in a noncontact manner includes a housing section including a pressing part which forms a closed surface when being placed to closely face one surface of a flat object, an R part which extends from the pressing part to be convexly rounded when viewed from the flat object, a sidewall part which is formed such that at least a portion thereof linearly extends from the R part in a direction facing away from the flat object, and an air inlet part which is connected to the sidewall part to introduce air, supplied from the outside, into the housing section; and a nozzle section including a nozzle tip which is separated from an inner surface of the sidewall part by a predetermined gap such that air supplied through the air inlet part can be discharged toward the perpendicular direction on the flat object, and an inclined surface which is formed to have a gradually decreasing diameter from the nozzle tip toward the air inlet part, the nozzle section having a funnel-shaped configuration and being inserted into a space defined in the housing section.
1 . A noncontact type suction gripping device suitable for lifting a flat object in a noncontact manner, comprising:
a housing section including a pressing part which forms a closed surface when being placed to closely face one surface of a flat object, an R part which extends from the pressing part to be convexly rounded when viewed from the flat object, a sidewall part which is formed such that at least a portion thereof linearly extends from the R part in a direction facing away from the flat object, and an connecting part which is connected to the sidewall part to form an air inlet part, supplying air from the outside into the housing section; and
a nozzle section discharging air supplied through the air inlet part toward the perpendicular direction on the flat object, wherein the nozzle section includes a nozzle tip which is separated from an inner surface of the sidewall part by a predetermined gap, and the nozzle section has a funnel-shaped configuration having an inclined surface which is formed to have a gradually decreasing diameter from the nozzle tip toward the air inlet part, and the nozzle section is inserted into a space defined in the housing section.
2 . The noncontact type suction gripping device according to claim 1 , wherein the nozzle tip is formed at a position that is depressed toward the air inlet part when viewed from the pressing part.
3 . The noncontact type suction gripping device according to claim 2 , wherein the nozzle tip is positioned to be closer to the air inlet part when viewed from a border line between the R part and the sidewall part of the housing section.
4 . The noncontact type suction gripping device according to claim 1 , wherein the housing further includes an external R part which is formed to be convexly rounded upward from the pressing part in a direction facing away from the flat object when viewed from the flat object.
5 . The noncontact type suction gripping device according to claim 1 , wherein the housing section and the nozzle section are formed such that each of the horizontal sections thereof is symmetric with respect to a center of the closed surface, formed by the pressing part, on a virtual horizontal plane on which the flat object is placed.
6 . The noncontact type suction gripping device according to claim 1 , wherein the pressing part has any one sectional shape selected from a circular sectional shape, a quadrangular sectional shape, and an elliptical sectional shape.
7 . A noncontact type suction gripping frame comprising:
a frame having a plurality of horizontal bars; and
a plurality of noncontact type suction gripping devices attached to the horizontal bars of the frame,
each noncontact type suction gripping device comprising
a housing section including a pressing part which forms a closed surface when being placed to closely face one surface of a flat object, an R part which extends from the pressing part to be convexly rounded when viewed from the flat object, a sidewall part which is formed such that at least a portion thereof linearly extends from the R part in a direction facing away from the flat object, and an air inlet part which is connected to the sidewall part to introduce air, supplied from the outside, into the housing section; and
a nozzle section discharging air supplied through the air inlet part toward the perpendicular direction on the flat object, wherein the nozzle section includes a nozzle tip which is separated from an inner surface of the sidewall part by a predetermined gap, and the nozzle section has a funnel-shaped configuration having an inclined surface which is formed to have a gradually decreasing diameter from the nozzle tip toward the air inlet part, and the nozzle section is inserted into a space defined in the housing section.
8 . The noncontact type suction gripping frame according to claim 7 , wherein the nozzle tip is positioned to be closer to the air inlet part when viewed from a border line between the R part and the sidewall part of the housing section.