Hot gas heated welding mechanism

Abstract

The utility model relates to welding mechanism technical field, and disclose a hot gas heating welding mechanism, including heating box and heat conduction box, the bottom outer surface of heat insulation frame is connected with the damping rotation axis, another end fixed communication of the connecting pipe has the shower nozzle, the outer surface fixed communication of shower nozzle has a plurality of gas outlet pipes, the outer surface of swivel lever and connecting frame all is located and has the positioning hole, the positioning pin of swivel lever and connecting frame corresponding positioning hole inner activity inserts has. In this hot gas heating welding mechanism, under the action of damping rotation axis, the connecting seat is rotated between the heat insulation frame and the handle, the axial position of the shower nozzle is adjusted, and the swivel lever is forced, the elevation angle of the shower nozzle is adjusted, the positioning pin and the positioning hole are matched, the inclination angle of the shower nozzle is limited, so that the inclination angle of the shower nozzle can be adjusted, the position of the shower nozzle can be accurately corresponding to the welding position of the plastic workpiece, and the welding effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding mechanism technology, specifically a hot gas heating welding mechanism. Background Technology

[0002] Nitrogen is a very stable inert gas that can remain stable even when heated to high temperatures or in harsh environments. In modern industrial production, welding technology is an important process for connecting materials and is widely used in many fields such as plastic products and electronic component packaging. Among them, hot gas heating welding mechanism uses heated nitrogen to perform hot melt welding on the plastics that need to be welded.

[0003] Existing technologies utilize hot gas heating welding by using a handheld nozzle to spray nitrogen onto the plastic surface that needs to be melted. However, the angle between the nozzle and the nitrogen delivery pipe is not easy to adjust. When welding irregularly shaped plastic parts, the nozzle angle cannot be adjusted, making it difficult for the nitrogen sprayed from the nozzle to fully contact the weld joint of the plastic parts. This results in uneven heating of the weld area, which can easily lead to insufficient weld strength or overheating and deformation of the material, thus affecting product quality. Therefore, a hot gas heating welding mechanism is proposed. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a hot gas heating welding mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hot gas heating welding mechanism, comprising a heating box and a heat-conducting box, one end of the heating box being connected to a conveying pipe for conveying nitrogen gas, a heat insulation frame being fixedly connected to the bottom outer surface of the heating box and the heat-conducting box, a damping shaft being rotatably connected to the bottom outer surface of the heat insulation frame, a connecting seat being fixedly connected to the bottom outer surface of the damping shaft, a handle being fixedly connected to the bottom outer surface of the connecting seat, a connecting pipe being provided on one side of the heat-conducting box, and a valve being installed inside the connecting pipe. The other end of the connecting pipe is fixedly connected to a nozzle. Multiple air outlet pipes are fixedly connected to the outer surface of the nozzle. A connecting frame is fixedly connected to the outer surface of the connecting seat. A rotating block is fixedly connected to the top outer surface of the nozzle. The rotating block is rotatably connected to the outer surface of the connecting frame. A rotating rod is rotatably connected to the bottom outer surface of the nozzle. Positioning holes are provided on the outer surfaces of both the rotating rod and the connecting frame. There are several positioning holes on the outer surface of the connecting frame, which are arranged in a linear array along the connecting frame. Positioning pins are movably inserted into the corresponding positioning holes of the rotating rod and the connecting frame.

[0006] Furthermore, a heating wire and multiple heat-conducting copper rods are installed on the inner surface of the heating box, and one end of each of the multiple heat-conducting copper rods is connected to the outer surface of the heating wire.

[0007] Furthermore, an air supply pipe is fixedly connected to the inner surface of the heat-conducting box. One end of the air supply pipe is connected to the interior of the heating box, and the other end of the air supply pipe is connected to a connecting pipe.

[0008] Furthermore, a heat-conducting pipe is fixedly connected to the top inner surface of the heat-conducting box, and the other end of the heat-conducting pipe extends into the interior of the heating box.

[0009] Furthermore, both the gas supply pipe and the heat conduction pipe are serpentine pipes.

[0010] Furthermore, the inner walls of both the heating box and the heat-conducting box are made of ceramic material.

[0011] Furthermore, the connecting pipe is a stainless steel corrugated pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This hot air heating welding mechanism, under the action of the damping shaft, causes the connecting seat to rotate between the heat insulation frame and the handle, adjusting the axial position of the nozzle. By applying force to the rotating rod, the elevation angle of the nozzle is adjusted. With the help of the positioning pin and positioning hole, the tilt angle of the nozzle is limited, thereby adjusting the tilt angle of the nozzle so that the position of the nozzle can accurately correspond to the welding part of the plastic workpiece, improving the welding effect.

[0014] 2. This hot gas heating welding mechanism heats the nitrogen gas through a heating wire and conducts the heat to a heat-conducting copper rod, which comes into direct contact with the nitrogen gas. The nitrogen gas is then heated and conducted into the gas delivery pipe. The heat is then conducted into the heat-conducting box through the heat-conducting pipe. The serpentine gas delivery pipe increases the heating area of ​​the nitrogen gas, making the nitrogen gas heated evenly and improving the subsequent melting effect. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a side sectional view of the present invention.

[0017] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the diagram: 1. Heating box; 2. Delivery pipe; 3. Heat-conducting box; 4. Heating wire; 5. Heat-conducting copper rod; 6. Heat-conducting pipe; 7. Air supply pipe; 8. Connecting pipe; 9. Nozzle; 10. Air outlet pipe; 11. Heat insulation frame; 12. Connecting seat; 13. Handle; 14. Rotating block; 15. Connecting frame; 16. Rotating rod; 17. Positioning hole; 18. Positioning pin. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] Please refer to the following: Figures 1-3 This utility model provides a technical solution: a hot gas heating welding mechanism, including a heating box 1 and a heat-conducting box 3. One end of the heating box 1 is connected to a conveying pipe 2 for conveying nitrogen. A heat insulation frame 11 is fixedly connected to the bottom outer surface of the heating box 1 and the heat-conducting box 3. A damping shaft is rotatably connected to the bottom outer surface of the heat insulation frame 11. A connecting seat 12 is fixedly connected to the bottom outer surface of the damping shaft. A handle 13 is fixedly connected to the bottom outer surface of the connecting seat 12. A connecting pipe 8 is provided on one side of the heat-conducting box 3. A [missing information - likely a component or material] is installed inside the connecting pipe 8. The valve and connecting pipe 8 are fixedly connected to a nozzle 9 at the other end. Multiple air outlet pipes 10 are fixedly connected to the outer surface of the nozzle 9. A connecting frame 15 is fixedly connected to the outer surface of the connecting seat 12. A rotating block 14 is fixedly connected to the top outer surface of the nozzle 9. The rotating block 14 is rotatably connected to the outer surface of the connecting frame 15. A rotating rod 16 is rotatably connected to the bottom outer surface of the nozzle 9. Positioning holes 17 are provided on the outer surfaces of both the rotating rod 16 and the connecting frame 15. There are several positioning holes 17 on the outer surface of the connecting frame 15, and they are arranged in a linear array along the connecting frame 15. The rotating rod 16 is equipped with a positioning pin 18 that is movably inserted into the positioning hole 17 corresponding to the connecting frame 15. Specifically, when it is necessary to adjust the position of the nozzle 9, force is applied to the connecting seat 12, causing the damping shaft to rotate at the heat insulation frame 11, adjusting the axial orientation of the nozzle 9. The damping shaft will not rotate on its own when no force is applied. Then, by unscrewing the positioning pin 18, force is applied to the rotating rod 16, causing one end of the rotating rod 16 to drive the nozzle 9, causing the rotating block 14 to rotate on the surface of the connecting frame 15, thereby adjusting the tilt angle of the nozzle 9. When the tilt angle of the nozzle 9 needs to be adjusted at any time, force is continuously applied to the rotating rod 16. When the nozzle 9 needs to be positioned at a certain tilt angle, the rotating rod 16 is aligned with the positioning hole 17 on the connecting frame 15. Then, the positioning pin 18 is inserted into the corresponding positioning hole 17 on the rotating rod 16 and the connecting frame 15 to limit the rotation rod 16 and the connecting frame 15. This allows the tilt angle of the nozzle 9 to be adjusted so that the position of the nozzle 9 can accurately correspond to the welding point of the plastic workpiece, thus improving the welding effect.

[0022] In this embodiment, a heating wire 4 and multiple heat-conducting copper rods 5 are installed on the inner surface of the heating box 1. One end of each of the multiple heat-conducting copper rods 5 is connected to the outer surface of the heating wire 4. Specifically, the heating wire 4 inside the heating box 1 works, heats up and conducts the high temperature to the heat-conducting copper rods 5, and the nitrogen gas is heated by the heat-conducting copper rods 5.

[0023] In this embodiment, a gas supply pipe 7 is fixedly connected to the inner surface of the heat-conducting box 3. One end of the gas supply pipe 7 is connected to the interior of the heating box 1, and the other end of the gas supply pipe 7 is connected to the connecting pipe 8. Specifically, after the nitrogen is heated in the heating box 1, it is delivered to the gas supply pipe 7 and then delivered to the connecting pipe 8 through the gas supply pipe 7.

[0024] In this embodiment, a heat-conducting pipe 6 is fixedly connected to the top inner surface of the heat-conducting box 3. The other end of the heat-conducting pipe 6 extends into the interior of the heating box 1. Specifically, the heat in the heating box 1 is conducted to the interior of the heat-conducting box 3 through the heat-conducting pipe 6 to further heat the nitrogen gas entering the heat-conducting box 3.

[0025] In this embodiment, both the gas supply pipe 7 and the heat conduction pipe 6 are serpentine pipes. Specifically, by setting the serpentine gas supply pipe 7, the contact area between nitrogen and heat inside the gas supply pipe 7 is increased, the heating area is increased, and the nitrogen is heated evenly, improving the subsequent melting effect. The heat is then conducted to the heat conduction box 3 through the serpentine heat conduction pipe 6, so that the heat is fully located inside the heat conduction box 3.

[0026] In this embodiment, the inner walls of both the heating box 1 and the heat-conducting box 3 are made of ceramic material. Specifically, by using ceramic material, the heat insulation capacity of the heating box 1 and the heat-conducting box 3 is increased.

[0027] In this embodiment, the connecting pipe 8 is a stainless steel corrugated pipe. Specifically, the stainless steel corrugated pipe has excellent high temperature resistance, can withstand the continuous scouring of high temperature gas, and has good flexibility, so it can deform with the adjustment of the nozzle 9.

[0028] It is worth noting that components such as nozzle 9, air outlet pipe 10, heat conduction pipe 6, and air supply pipe 7 in this device are all made of high-temperature resistant materials such as stainless steel to meet the requirements for the delivery of high-temperature nitrogen. This should be well known to those skilled in the art, and therefore is not described in detail in this application.

[0029] Working Principle: In use, this invention connects to the nitrogen delivery end via the delivery pipe 2. The heating wire 4 inside the heating box 1 heats the nitrogen and conducts the high temperature to the heat-conducting copper rod 5, which in turn raises the temperature of the nitrogen. The temperature inside the heating box 1 is then conducted to the interior of the heat-conducting box 3 via the heat-conducting pipe 6. After being heated, the nitrogen enters the gas delivery pipe 7. The serpentine gas delivery pipe 7 increases the heating area, ensuring uniform heating and improving the subsequent melting effect. Opening the valve allows nitrogen to enter the connecting pipe 8 from the gas delivery pipe 7, and then spray it out through the outlet pipe 10 at the nozzle 9 for hot-melt welding of the plastic. The orientation of the nozzle 9 can be adjusted as needed, applying force to the connecting seat 12 to rotate the damping shaft at the heat insulation frame 11, thus adjusting the spray... The axial orientation of the head 9 is adjusted by unscrewing the positioning pin 18 and applying force to the rotating rod 16. This causes one end of the rotating rod 16 to drive the nozzle 9, causing the rotating block 14 to rotate on the surface of the connecting frame 15, thereby adjusting the tilt angle of the nozzle 9. When it is necessary to adjust the tilt angle of the nozzle 9 at any time, force is continuously applied to the rotating rod 16. When the position of the nozzle 9 needs to be positioned at a certain tilt angle, the rotating rod 16 is aligned with the positioning hole 17 on the connecting frame 15. Then, the positioning pin 18 is inserted into the corresponding positioning hole 17 on the rotating rod 16 and the connecting frame 15 to limit the rotation rod 16 and the connecting frame 15. This allows the tilt angle of the nozzle 9 to be adjusted so that the position of the nozzle 9 can accurately correspond to the welding point of the plastic workpiece, improving the welding effect.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hot gas heating welding mechanism, comprising a heating box (1) and a heat-conducting box (3), characterized in that: One end of the heating box (1) is connected to a delivery pipe (2) for conveying nitrogen. A heat insulation frame (11) is fixedly connected to the bottom outer surface of the heating box (1) and the heat-conducting box (3). A damping shaft is rotatably connected to the bottom outer surface of the heat insulation frame (11). A connecting seat (12) is fixedly connected to the bottom outer surface of the damping shaft. A handle (13) is fixedly connected to the bottom outer surface of the connecting seat (12). A connecting pipe (8) is provided on one side of the heat-conducting box (3). A valve is installed inside the connecting pipe (8). The other end of the connecting pipe (8) is fixedly connected to a nozzle (9). Multiple air outlet pipes are fixedly connected to the outer surface of the nozzle (9). 10) A connecting frame (15) is fixedly connected to the outer surface of the connecting seat (12), and a rotating block (14) is fixedly connected to the top outer surface of the nozzle (9). The rotating block (14) is rotatably connected to the outer surface of the connecting frame (15), and a rotating rod (16) is rotatably connected to the bottom outer surface of the nozzle (9). Positioning holes (17) are provided on the outer surfaces of the rotating rod (16) and the connecting frame (15). There are several positioning holes (17) on the outer surface of the connecting frame (15) and they are arranged in a linear array along the connecting frame (15). Positioning pins (18) are movably inserted into the positioning holes (17) corresponding to the rotating rod (16) and the connecting frame (15).

2. The hot gas heating welding mechanism according to claim 1, characterized in that: The inner surface of the heating box (1) is equipped with a heating wire (4) and a plurality of heat-conducting copper rods (5), one end of each of the plurality of heat-conducting copper rods (5) being connected to the outer surface of the heating wire (4).

3. The hot gas heating welding mechanism according to claim 1, characterized in that: An air supply pipe (7) is fixedly connected to the inner surface of the heat-conducting box (3). One end of the air supply pipe (7) is connected to the interior of the heating box (1), and the other end of the air supply pipe (7) is connected to the connecting pipe (8).

4. The hot gas heating welding mechanism according to claim 3, characterized in that: A heat-conducting pipe (6) is fixedly connected to the top inner surface of the heat-conducting box (3), and the other end of the heat-conducting pipe (6) extends into the interior of the heating box (1).

5. A hot gas heating welding mechanism according to claim 4, characterized in that: Both the gas supply pipe (7) and the heat conduction pipe (6) are serpentine pipes.

6. The hot gas heating welding mechanism according to claim 1, characterized in that: The inner walls of both the heating box (1) and the heat-conducting box (3) are made of ceramic.

7. A hot gas heating welding mechanism according to claim 1, characterized in that: The connecting pipe (8) is a stainless steel corrugated pipe.

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