JPS6027623Y2 - Simple plastic welder - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a plastic welder that can be easily used.

Conventional plastic welding machines require a power source, have a complicated structure, and are large in size.

The present invention has been devised for the purpose of modifying the conventional structure and providing a plastic welder that is extremely compact and easy to use.

Therefore, the present invention includes a torch lamp body 2 that fits into a gas cylinder 1, and also provides a hot air jetting pipe 5 to the mixing pipe 4 at the end of the nozzle 3 provided in the main body 2, and also provides a bulging base of the hot air jetting pipe 5. A simple plastic welder characterized in that it has a perforated hood 7 that covers the end fitting part 6 and has an open front, and has a small hole 8 formed in the bulged proximal end fitting part 6. The gist is the structure of

In the illustrated embodiment, the external flame exhaust hole 9 bored at the base of the hot air jetting pipe 5 is a small hole in the form of an effective hood 7, and the perforated hood 7 may be made of punched metal or net.

10 is the upper end nozzle of the cylinder 1, 11 is a communication hole formed in the torch lamp body 2, 12 is a bullet that engages with the brim 13 of the cylinder 1, and 14 is a main body for fixing the torch lamp body 2 to the cylinder 1. 16 is a mounting plate for the bullet piece 12; 17 is a needle valve which is operated by a bundle 18 and has the nozzle 3 at its tip; Swelling part 20 for giving shape
has.

Further, the nozzle pipe 22 is screwed onto the main body 2 and the female threaded pipe 21 is formed, and the male thread 23 of the needle valve 17 is screwed onto the female threaded pipe 21.

24 is an O-ring fitted to the needle valve 17, 25 is an air supply port formed in the mixing tube 4, and 26 is a perforated plate fitted to the fixing metal fitting 29 at the tip of the mixing tube 4, and the ignition nozzle 27 is placed in the center of the mixing tube. At the same time, flame is blown out from this part and hot air is sent out from the blowing pipe 5.

The fixing fitting 29 is screwed onto the mixing tube 4, and the bulging proximal end fitting portion 6 of the hot air jetting tube 5 is screwed onto the outer periphery of the fixing fitting 29.

3a shows the backing.

Since the present invention has the above-described configuration, when the bundle 18 is turned to open the gas passage, gas is ejected from the ignition nozzle 27, ignited from the small hole 8, ignited the ignition nozzle 27, and then the hot air jet pipe is ignited. Hot air is ejected from 5.

Therefore, without requiring a power source, the plastic welding rod 31 can be melted by jetting hot air, and the members to be connected 32 and 33 can be joined very easily.

Further, as shown in FIG. 4, the cylinder 1 can be used upside down, so it can be welded in any orientation and is portable, which is very convenient in practice.

And the hood 7 performs the function of blocking the wind from the flames, and
It also functions to prevent the backflow of burned exhaust gas, thereby preventing incomplete combustion of the gas.

Furthermore, the perforated hood has a small hole, and the fitting part of the proximal end of the hot air jet tube also has a small hole, so that it is easy to take in secondary air, and at the same time, it has the effect of dissipating the exhaust gas to the outside. We also do

This has the effect of keeping the welding temperature and welding air volume optimized.

[Brief explanation of drawings]

The drawings show an embodiment of the simple plastic welding device according to the present invention, in which Fig. 1 is a vertical side view, Fig. 2 is an exploded perspective view, and Figs. 3 and 4 are side views showing the state of use. It is. 1...Gas cylinder, 2...Torch lamp body, 3...Nozzle, 4...Mixing pipe, 5...Hot air jetting pipe, 6...Bulging proximal end fitting portion, 7...Effective hood, 8...Small hole.

Claims (1)

[Scope of utility model registration request] A torch lamp body 2 that fits into a gas cylinder 1 is provided, and a hot air jetting pipe 5 is connected to a mixing pipe 4 at the end of a nozzle 3 provided on the main body 2.
It also has a perforated hood 7 which covers the bulging proximal end fitting part 6 of the hot air jetting pipe 5 and has an open front, and has a small hole 8 in the bulging proximal fitting part 6. A simple plastic welder featuring the following features: