Hot melt glue gun
A hot-melt glue gun, hot-melt type technology, applied in electric heating device, ohmic resistance heating, heating element shape and other directions, can solve the problems of low capacity, inconvenient use in industrial use, hardening, etc., and achieve high-efficiency operation and melting Good heating efficiency
Inactive Publication Date: 2015-03-25
テクノスアルファ株式会社
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Problems solved by technology
[0010] Therefore, if you do not fully understand this characteristic, if you continue to pull the trigger in the high-viscosity state where the hot-melt adhesive has just started to soften, it will be directly discharged in a high-viscosity state, resulting in clogging of the ball valve inside the nozzle.
If you want to force it to spit out in this state and continue to pull the trigger, it will cause the molten resin inside to flow back to the silicone sleeve at the inlet and harden, and then fall into an irreparable situation where the trigger cannot move.
In addition, the known hot-melt glue gun cannot continuously spit out the adhesive due to its small internal capacity. Therefore, if continuous bonding operations are required, more than two hot-melt glue machines must be prepared for alternate use. Therefore, in industrial applications Inconvenient to use
Method used
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[0077] Next, embodiments of the present invention will be described with reference to the attached drawings. figure 1 It is an appearance diagram showing a hot melt glue gun 100 according to an embodiment of the present invention. As shown in the figure, the hot melt glue gun 100 has a handle portion 20 on the cylindrical hot melt glue gun body 10, and has a trigger portion 30 structure at the connecting portion between the handle portion 20 and the hot melt glue gun body 10, The overall appearance is in the shape of a gun or pistol.
[0078] The inside of hot melt glue gun body 10 is as figure 2 or image 3 As shown, there is a melting part 40 inside, and by repeatedly pulling a trigger part 30, the rod-shaped hot-melt adhesive 50 fed in sequence is introduced, heated and melted, and then ejected from the nozzle 60 at the front end.
[0079] This melting part 40 is as figure 2 or image 3 As shown, for example, it is made of metal with good thermal conductivity such as...
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The present invention is provided with a melting part (40) for heating, melting, and discharging a rod-shaped hot-melt adhesive (50) introduced therein, the melting part (40) is formed of metal, and an introduction port (80a) for introducing the rod-shaped hot-melt adhesive (50) and a discharge port (83a) for discharging the heated and molten liquid hot-melt adhesive (50) are communicated by a plurality of passages (81b). The surface area of contact between the hot-melt adhesive (50) and the melting part (40) is thereby increased, and the hot-melt adhesive (50) can therefore be efficiently heated / melted, heated to a bonding temperature thereof in a short time, and discharged.
Description
technical field [0001] The present invention relates to a hot-melt glue gun which heats and melts a stick-shaped hot-melt adhesive and discharges it. Background technique [0002] Generally, hot-melt type adhesives are used as adhesives for sealing cardboard boxes, packaging medicines or cosmetics, and assembling wood products. This hot-melt adhesive is an adhesive made of EVA (ethylene, vinyl, acetate) and thermoplastic resins such as polyamide and acrylic resin. For commercial production, a coating device called a hot melt applicator is usually used to dissolve the hot melt adhesive in a tank of several liters to tens of liters, and pump it out, with an accessory called a heater hose or automatic gun. [0003] On the other hand, for amateur uses that are used less frequently, such as trimming dried flowers, craft classes in elementary and middle schools, and gluing wigs in beauty salons, a simple hand-held applicator called a glue gun (glue gun) is used. tool. For exam...
Claims
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IPC IPC(8): B05C5/04B05C11/10
CPCB05C5/001B05C11/1042B05C17/00546B05C17/0053B05C17/0052H05B3/42H05B2203/012
Inventor 小野和彦
Owner テクノスアルファ株式会社