Air nozzle device of plastic welding gun

Abstract

The utility model belongs to the technical field of plastic welding, and discloses an air nozzle device of a plastic welding gun, which consists of a plastic welding gun main body, a conversion connecting pipe and an air nozzle. One end of a 12MM stainless steel pipe is knocked to be flat by a hammer to form a funnel-shaped blowing nozzle, and the other end of the 12MM stainless steel pipe, namely a conversion joint, is welded on the treated stainless steel blowing nozzle by an argon arc welding machine, is punched and is fixed at an air outlet of a welding gun. The temperature of an air outlet of a welding gun is adjusted to the optimal welding temperature, a flat nozzle is placed in the middle of soft plastic, the soft plastic is preheated by a welding gun head to be in a soft state, hot air is sprayed out through a nozzle, and bonding forming can be achieved through slight pressure. The device provided by the utility model is simple in structure and convenient to use, effectively improves the rapid melting of the plastic at the welding part during the welding of the plastic welding machine, increases the welding melting area, improves the welding speed and the welding quality, and is also suitable for other related devices needing plastic welding.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of air jet nozzle, specifically relates to a plastic welding gun air jet nozzle device. BACKGROUND

[0002] The common plastic welding machine when welding soft plastic (PVC), the electric heating wire in the welding gun is heated, and the cold air is heated into hot air flow and is sprayed from the nozzle, so that the welded plate and the welding rod are heated to be in the molten state and are bonded together, since the air nozzle is circular, the welding area is small, the heating is uneven, causes partial welding, and the welding quality is affected. SUMMARY

[0003] The utility model provides a plastic welding gun air jet nozzle device, and the purpose is to solve the problems of the conventional air jet nozzle being circular, leading to small welding area, uneven heating, causing partial welding, and affecting the welding quality.

[0004] Therefore, the utility model adopts the following technical scheme:

[0005] The device provided by the utility model can improve the welding effect at multiple positions and multiple angles in the production site, and is composed of a welding gun main body, a conversion joint and a blowing nozzle. The conversion joint is welded with the blowing nozzle, and the conversion joint and the welding machine main body can be stably connected through the holes in the conversion joint and the welding machine air outlet. The blowing nozzle needs to be knocked flat at one end in advance to form a flat funnel shape by using a 12mm stainless steel pipe, so as to increase the air volume and increase the heating area of the welding position, thereby improving the welding speed and welding quality. At the same time, the blowing nozzle can change various shapes and angles at will, so that welding work can also be carried out in some narrow pipelines, and the operability of the welding work is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is the schematic diagram of the air jet nozzle of the utility model;

[0007] Figure 2 is the structure front view of the air jet nozzle of the utility model;

[0008] In the figure: 1-welding machine main body, 2-positioning hole, 3-conversion joint, 4-blowing nozzle. DETAILED DESCRIPTION

[0009] The utility model will be further described in combination with the drawings and specific embodiments:

[0010] For example, Figure 1 And 2As shown, a plastic welding gun air nozzle device comprises a welding gun body 1, a conversion joint 2 and a blowing nozzle 3; the front end of the blowing nozzle 3 is flat, and the flat blowing nozzle 3 is used for dispersing airflow to expand the blowing area; the tail end of the blowing nozzle 3 is in a circular tube shape, the tail end is detachably connected to the conversion joint 3, and the conversion joint 3 is connected to the welding gun body. The tail end of the blowing nozzle 3 is a Ø12mm stainless steel pipe, the conversion joint 3 adopts a Ø7mm stainless steel pipe, and the conversion joint 3 is welded to the welding gun body 1.

[0011] The manufacturing method of the utility model is as follows: a Ø12mm stainless steel pipe is used, one end is flattened by a hammer to form a funnel-shaped blowing nozzle, and the other end is welded to the processed stainless steel blowing nozzle by using an argon arc welding machine, and a Ø7mm long 2cm stainless steel pipe is fixed at the air outlet of the welding gun by punching. The air outlet temperature of the welding gun is adjusted to 200℃-260℃ (the best welding temperature), the flat nozzle is placed in the middle of the soft plastic, the soft plastic is preheated by the welding gun head to a soft state and sprayed by the nozzle, and slightly pressurized to be bonded and formed.

Claims

1. A plastic welding gun air jet tip device, characterized by, It comprises a welding torch body, a conversion joint and a blowing nozzle; the front end of the blowing nozzle is flat, the flat blowing nozzle is used for dispersing air flow to expand the blowing area; the tail end of the blowing nozzle is a round pipe, the tail end is detachably connected with the conversion joint, and the conversion joint is connected with the welding torch body.

2. A plastic welder air cap assembly as defined in claim 1, wherein, The tail end of the blowing nozzle is a Ø12mm stainless steel pipe.

3. A plastic welder air cap assembly as defined in claim 1, wherein, The conversion joint is a Ø7mm stainless steel pipe, and the conversion joint is welded on the welding torch body.

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