Glue transport mechanism for a molten glue discharging device

An electric glue gun, including:

• a housing;
• A glue stick guide tube having front and rear ends disposed in said housing for receiving a glue stick therein, said glue stick guide tube incorporating an upper notch and a lower notch opening thereinto;
• an electric heating element externally mounted on said glue stick guide tube adjacent the front end thereof;
• a servo-motor mounted in said housing and including a rotary driven gear, said gear projecting through said upper notch of said glue stick guide tube to drive a glue stick disposed therein and to move said glue stick forward in said guide tube for melting by said electric heating element;
• a pressure wheel set mounted for up and down shifting within said housing and including an upper end from which a pressure wheel is journalled projecting into said lower notch and a lower end, a trigger shiftably mounted from said housing for movement between on and off positions, said trigger and said lower end including co-acting means for upwardly displacing said pressure wheel set relative to said housing responsive to movement of said trigger toward said on position;
• a motor controlling switch mounted in said housing for controlling operation of said servo-motor;
• and
• an operator shiftably supported from said housing and operatively associated with said trigger and motor controlling switch for closing the latter responsive to shifting of said trigger to said on position.