초록 ▼

A nozzle assembly (11) of an adhesive dispensing valve (10) includes a first valve (32) adjacent a discharge orifice (34). The first valve (32) opens to permit the flow of adhesive therethrough and closes to terminate the flow of adhesive in response to respective first and second states of the valv

A nozzle assembly (11) of an adhesive dispensing valve (10) includes a first valve (32) adjacent a discharge orifice (34). The first valve (32) opens to permit the flow of adhesive therethrough and closes to terminate the flow of adhesive in response to respective first and second states of the valve operating module (14). The adhesive dispensing valve (10) has a separable nozzle plate (102) that includes the first valve seat (100) and the discharge orifice (34) and is coupled to a nozzle body (72) with a mounting cap (104). A secondary valve (146) is located upstream of the first valve (32) and permits adhesive to flow therethrough in response to both of the first and second states of the valve operating module. However, as the mounting cap (104) and nozzle plate (102) are removed, the secondary valve (146) automatically engages its valve seat (94), thereby terminating the flow of adhesive while the nozzle plate (102) is removed from the valve body (16).

대표청구항 ▼

[ We claim:] [1.] A removable valve plate for an adhesive dispensing valve mounted at a distal end of an adhesive dispensing apparatus having an adhesive passage providing a fluid path from a supply of adhesive to the adhesive dispensing valve, the valve plate comprising:a generally plate-like body

[ We claim:] [1.] A removable valve plate for an adhesive dispensing valve mounted at a distal end of an adhesive dispensing apparatus having an adhesive passage providing a fluid path from a supply of adhesive to the adhesive dispensing valve, the valve plate comprising:a generally plate-like body mounted at the distal end of the adhesive dispensing apparatus and adapted to operatively cooperate with a valve stem to form the adhesive dispensing valve;a first cavity disposed within the body and having a one end directed toward one side of the body and in fluid communication with the adhesive passageway, and the first cavity adapted to receive the valve stem;a second cavity disposed within the body and shaped to form a valve seat of the adhesive dispensing valve for receiving an end of the valve stem, the second cavity havinga wider end intersecting an opposite end of the first cavity, anda narrower end in fluid communication with a dispensing orifice on an opposite side of the body; anda mounting flange extending laterally from the body and adapted to facilitate mounting the valve plate at the distal end of the adhesive dispensing apparatus.