초록 ▼

In the processing of rapidly hardening flowable substances, especially glue, it is important to avoid hardening of glue residuals within the nozzle unit during temporary interruptions of operation. For this purpose, a liquid, especially water, is supplied through a nozzle duct so that the glue is ri

In the processing of rapidly hardening flowable substances, especially glue, it is important to avoid hardening of glue residuals within the nozzle unit during temporary interruptions of operation. For this purpose, a liquid, especially water, is supplied through a nozzle duct so that the glue is rinsed out of an end section (31) facing the nozzle orifice (17). By closing the nozzle duct (16), a water column remains in the nozzle duct (16) and seals it towards the outside.

대표청구항 ▼

[ We claim:] [1.] Nozzle unit for processing free-flowing hardening materials, including applying glue to packages for gluing together of surfaces or folding tabs, said nozzle unit having a nozzle chamber (11) formed in a nozzle housing (10), the nozzle chamber (11) being connected to an outward-lea

[ We claim:] [1.] Nozzle unit for processing free-flowing hardening materials, including applying glue to packages for gluing together of surfaces or folding tabs, said nozzle unit having a nozzle chamber (11) formed in a nozzle housing (10), the nozzle chamber (11) being connected to an outward-leading nozzle duct (16), said nozzle unit being characterized by the following features:a. connected to the nozzle duct (16) in a transverse direction to the nozzle duct (16) is a water conduit (32), through which water or another suitable liquid can be led into the nozzle chamber (16),b. during an interruption in operation of the nozzle unit and while the nozzle unit remains stationary in its operating position, a closing member (18) can be moved into a closing position for closing the nozzle duct (16) and water can be led via the water conduit (32) into the nozzle duct in such a way that glue can be flushed out of an end section (31) of the nozzle duct (16) that faces a nozzle orifice (17),c. the end section (31) remains filled with water after the glue has been flushed out of the end section (31) of the nozzle duct (16), andd. after the interruption in operation, the closing member (18) is retracted from the nozzle duct (16) such that glue can be passed through the nozzle duct (16) in such a way that water can be forced out of the end section (31).