A fast hot melt adhesive gun includes an adhesive gun housing, wherein an end part of one end of the adhesive gun housing is provided with an adhesive inlet, a heating cavity used for heating an adhesive rod is formed in the adhesive gun housing, an inner wall of the adhesive gun housing is fixedly connected with a chute for the adhesive rod to slide, the heating cavity comprises a funnel-shaped heating head, a rear end of the funnel-shaped heating head is in communication with a connecting pipe, an outside of the funnel-shaped heating head is wrapped with a PTC heating layer, an inner diameter of the funnel-shaped heating head is gradually reduced from a first end at the connecting pipe to a second end at the funnel-shaped heating head, a front end of the funnel-shaped heating head is in communication with a copper sleeve.

A fast hot melt adhesive gun includes an adhesive gun housing, wherein an end part of one end of the adhesive gun housing is provided with an adhesive inlet, a heating cavity used for heating an adhesive rod is formed in the adhesive gun housing, an inner wall of the adhesive gun housing is fixedly connected with a chute for the adhesive rod to slide, the heating cavity comprises a funnel-shaped heating head, a rear end of the funnel-shaped heating head is in communication with a connecting pipe, an outside of the funnel-shaped heating head is wrapped with a PTC heating layer, an inner diameter of the funnel-shaped heating head is gradually reduced from a first end at the connecting pipe to a second end at the funnel-shaped heating head, a front end of the funnel-shaped heating head is in communication with a copper sleeve.

A hot melt adhesive applicator with one or more air outlets configured to direct a pressurized heated air stream transversely toward hot melt adhesive discharged through a discharge port of the applicator. A controller can switch between two modes, a discharge completion mode where the heated air stream pressure is temporarily increased to automatically eliminate or reduce hot melt adhesive stringing and an application mode where the heated air stream assists in heating or maintaining the hot melt adhesive at or above melt temperature.

A hand-held hot melt glue gun having a melt chamber, a needle and a nozzle that is movable with respect to the needle to open or close a discharge port in fluid communication with the melt chamber. A spring closure urges the needle and nozzle toward relative positions to close the discharge port. An opening element moves the nozzle with respect to the needle to open the discharge port, and a trigger mechanism is provided for advancing solid glue into the melt chamber and for operating the opening element. A time delay mechanism provides a time delay between the opening of the discharge port and advancement of glue into the melt chamber.

The invention relates to a device (1) for melting a hot-melt adhesive (3), comprising a heating plate (5), a plunger (7), the plunger (7) comprising a plunger end face (9), and a mounting (11), wherein the mounting (11) is suitable for receiving a storage container (13), which has a rigid lateral wall (15) and two opposite side faces (17, 19) and contains the hot-melt adhesive (3), in such a manner that the hot-melt adhesive (3) is arranged between the plunger (7) and the to heating plate (5), and the plunger end face (9) and the heating plate (5) are arranged opposite one another, wherein the heating plate (5), the plunger (7) and the mounting (11) are so dimensioned that the storage container (13) having an inner volume (21) of more than 50 L can be received. The invention relates further to a method for melting a hot-melt adhesive.

A hot melt adhesive applicator with one or more air outlets configured to direct a pressurized heated air stream transversely toward hot melt adhesive discharged through a discharge port of the applicator. A controller can switch between two modes, a discharge completion mode where the heated air stream pressure is temporarily increased to automatically eliminate or reduce hot melt adhesive stringing and an application mode where the heated air stream assists in heating or maintaining the hot melt adhesive at or above melt temperature.

A handheld gun-type cannabis rosin oil press and dispenser is described and claimed having a piston feeding mechanism comprising a trigger arranged to drive clamping means to grasp a piston and move the piston towards a melt chamber of the gun to feed the piston face against the cannabis floral material in the melt chamber. The force of the piston combined with the precisely controlled heat of the chamber causes the extraction of rosin oil from the cannabis material and subsequent dispensing from the outlet orifice of the gun.

An improved hot melt glue gun with an automatic glue stick feeding structure includes a housing that is gun-shaped and that includes an inlet and an outlet. A glue stick feeding module is mounted in the housing and located adjacent to the inlet. The glue stick feeding module includes a motor connected to a casing. The casing includes a passage and a through-hole. The passage is located in the casing and intercommunicates with the inlet. The through-hole is aligned with the passage in a transverse direction. An activation module includes an activation rod reciprocatingly and movably extending through the through-hole. A micro switch is located adjacent to the activation module and is electrically connected to the motor. The micro switch is configured to be pressed by the activation rod to activate the motor. A hot melt module is mounted in the housing and located adjacent to the outlet.

An improved hot melt glue gun with an automatic glue stick feeding structure includes a housing that is gun-shaped and that includes an inlet and an outlet. A glue stick feeding module is mounted in the housing and located adjacent to the inlet. The glue stick feeding module includes a motor connected to a casing. The casing includes a passage and a through-hole. The passage is located in the casing and intercommunicates with the inlet. The through-hole is aligned with the passage in a transverse direction. An activation module includes an activation rod reciprocatingly and movably extending through the through-hole. A micro switch is located adjacent to the activation module and is electrically connected to the motor. The micro switch is configured to be pressed by the activation rod to activate the motor. A hot melt module is mounted in the housing and located adjacent to the outlet.

A glue gun dispensing nozzle indicator changes color when a heater element exceeds a transition temperature. In one embodiment, the temperature indicator changes from a blue color to a red color to indicate that the temperature is sufficient so that the glue gun may dispense molten glue. Temperature dependent color pigments are applied as coatings to the indicator.