초록 ▼

A nozzle actuating and adjustment system for applying sealant to a can lid member comprising a nozzle which has a sealant dispensing opening, a needle valve means, a needle valve seat surface and a sealant flow passage for enabling flow of sealant material onto the lid member. The needle valve is se

A nozzle actuating and adjustment system for applying sealant to a can lid member comprising a nozzle which has a sealant dispensing opening, a needle valve means, a needle valve seat surface and a sealant flow passage for enabling flow of sealant material onto the lid member. The needle valve is selectively axially movable between an open sealant applying position and a closed non-flow position relative to the needle valve seat surface. A spring means is operatively associated with the needle valve means to normally hold the needle valve means in the closed lowered position. A needle valve actuator solenoid is operatively connected to the needle valve for selectively causing axial upward movement of the needle valve from the closed position to the open position by a predetermined axial distance to provide a predetermined sealant flow gap in the nozzle means to dispense a predetermined amount of sealant material during a predetermined dispensing time period. A flow gap adjustment solenoid is operatively connected to the needle valve actuator solenoid for selectively changing the amount of axial movement of the needle valve caused by the actuator solenoid so as to selectively vary the sealant flow gap and the amount of sealant material dispensed during a predetermined dispensing time.

대표청구항 ▼

[ What is claimed is:] [2.] A method of applying sealant to can lid members with a sealant applying mechanism wherein said method comprises:opening a needle valve located within said sealant applying mechanism a first distance in accordance with a first setting of an adjustment mechanism located wit

[ What is claimed is:] [2.] A method of applying sealant to can lid members with a sealant applying mechanism wherein said method comprises:opening a needle valve located within said sealant applying mechanism a first distance in accordance with a first setting of an adjustment mechanism located within said sealant applying mechanism by energizing an electrically operable reciprocable solenoid;applying to a can lid member a first quantity of sealant dictated by said first distance;adjusting said adjustment mechanism from said first setting to a second setting by energizing an electrically operable rotary solenoid;opening said needle valve a second distance in accordance with said second setting of said adjustment mechanism by energizing said electrically operable reciprocable solenoid; andapplying to a can lid member a second quantity of sealant dictated by said second distance.