A fast hot melt glue gun

Abstract

The invention discloses a quick hot melt glue gun. The quick hot melt glue gun comprises a gun body; and a glue rod, a hot melt device and a power supply module are arranged in the gun body. The quick hot melt glue gun is characterized in that the hot melt device includes at least one PTC ceramic heating piece, a negative pole connecting piece and an electric conduction heating head; a hot melt cavity is formed in the electric conduction heating head; the PTC ceramic heating piece is arranged out of the hot melt cavity, and the inner side of the PTC ceramic heating piece is tightly bonded on the electric conduction heating head; the PTC ceramic heating piece is electrically connected with a negative pole input end of the power supply module through the negative pole connecting piece; the electric conduction heating head is electrically connected with a positive pole input end of the power supply module; a leakage preventing rubber sleeve is arranged at the back end of the electric conduction heating head; a connecting concave cavity is formed in the back end of the electric conduction heating head; a connecting convex ring is arranged at the front end of the leakage preventing rubber sleeve, and extends into the connecting concave cavity; and a first conical through hole is formed in the front end of the leakage preventing rubber sleeve. The quick hot melt glue gun has the advantages of more direct heating effect and higher heating efficiency; and the glue rod can be smoothly extruded out in reuse, so that the use is convenient and fast.

Description

technical field [0001] The invention relates to a glue gun device, in particular to a fast hot melt glue gun. Background technique [0002] The hot melt glue gun is a manual melt glue extruding tool. The heating device in the existing hot melt glue gun generally uses alternating current to supply power to the heating plate, thereby heating the melt pipe to melt the glue, so it needs to be near the AC power supply There are certain restrictions on where to use for operations. [0003] In order to solve the above problems, the PTC heating module is often used instead of the heating plate to heat the hot-melt rubber hose. The power supply device of the PTC heating module can use a portable power supply device such as a lithium battery power supply device, so the limitation of the place of use is small; however, The existing PTC heating module directly connects the positive and negative poles of the power module to both sides of the PTC ceramic heating sheet, so an insulating l...

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Problems solved by technology

[0003] In order to solve the above problems, the PTC heating module is often used instead of the heating plate to heat the hot-melt rubber hose. The power supply device of the PTC heating module can use a portable power supply device such as a lithium battery power supply device, so the limitation of the place of use is small; however, The existing PTC heating module directly connects the positive and negative poles of the power module to both sides of the PTC ceramic heating sheet, so an insulating layer needs to be provided between the PTC ceramic heating sheet and the conductive heating head made of metal for insulation protection. The usual practice is to wrap a layer of insulating film on the outside of the PTC ceramic heating sheet. The thermal conductivity of the insulating film is poor, so the heating efficiency is not high; after the existing hot melt glue gun is used, the glue after melting often flows back. And overflow phenomenon, after cooling, these overflowing colloids will re-solidify and make the glue stick thicker. When used again, the glue stick cannot be pushed into the heating head smoothly, and it takes longer heating time or the glue stick needs to be taken out and cleaned before continuing Use will affect the quick glue release and cause inconvenience in use

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