Device for applying glue to areas of paper or plastic sheets or paper or plastic sheet sections and method for producing same

摘要

The apparatus has a nozzle unit (1) with multiple glue outlets openings (4), where glue supply lines (3) and multiple glue valves (5,6,7) are arranged for supplying glue through the glue outlets openings. Each glue valve has a plunger (8,9,10) with a sealing head and a counter-element (11,12,13). The sealing head comes into a sealing contact by the plunger. The counter-element is arranged in close proximity to a glue chamber (2). The nozzle unit is partially made of plastic. An independent claim is also included for a method for manufacturing an apparatus for applying glue to areas of paper or plastic sheets or paper or plastic rail sections for manufacturing paper bags.