Moving mechanism of blower gun of welding machine
By combining the design of guide bracket, hook structure and magnetic attraction device, the complex locking and unlocking problem of welding gun is solved, realizing the rapid switching and stable working state of the gun, and improving the ease of operation and reliability.
Patent Information
- Application Number
- CN202522046272.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-23
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2035-09-23
AI Technical Summary
The existing welding machine hot air guns have complex and unreliable locking and unlocking functions, are cumbersome to operate, and lack stability during operation.
The design combines a guide bracket, a hook structure, a proximity sensor switch, and a magnetic suction device to enable quick hanging and unlocking of the air gun. The air gun is guided by a guide groove, its translation is restricted by the hook structure, its movement is triggered by the proximity sensor switch, and its position is maintained by the magnetic suction device.
The operation of the air gun has been simplified, the stability and reliability of the air gun in working condition have been improved, it can adapt to different working requirements, and the structure is compact and beautiful.
Smart Images

Figure CN223478360U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding machines, and in particular to a movable mechanism for a welding machine hot air gun. Background Technology
[0002] Hot air welding machine is a special equipment used for welding waterproof membrane. It is widely used in water conservancy projects, municipal engineering, building waterproofing and other fields. It mainly uses hot air to heat the waterproof membrane (such as PVC, PE, EVA and other materials) to melt it and then weld it together to form a sealed waterproof structure.
[0003] Typically, when a welding machine is not in operation, the hot air gun needs to be moved out of its working position and hung up. When in use, the hot air gun needs to be unlocked and moved back into its working position. Currently, the structures used to achieve these two functions are relatively complex, have low reliability, and are cumbersome to operate. Simplifying the hot air gun locking and unlocking functions, and improving the stability and reliability of the hot air gun in its working state, are technical directions that those skilled in the art are continuously optimizing and improving. Summary of the Invention
[0004] To solve the above problems, a movable mechanism for a welding machine hot air gun has been specially developed. Through a simple mechanical structure, it can sense and maintain the working status of the hot air gun, and realize the rapid switching between the hung and unlocked states of the hot air gun.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a movable mechanism for a welding gun, comprising a guide bracket disposed inside the welding machine and a gun connecting shaft penetrating inside and outside the welding machine. The guide bracket has a guide groove on its surface, and a hook structure is provided at one end of the guide groove. One end of the gun connecting shaft is connected to the gun, and the other end is provided with a guide post. The guide post moves within the guide groove. When the guide post moves to the hook structure, the hook structure can restrict its translation.
[0006] Furthermore, a proximity sensor switch is provided at the upper end of the guide bracket. When the air gun connecting shaft moves directly below the proximity switch, the welding machine starts to move. When the air gun connecting shaft moves away from directly below the proximity switch, the welding machine stops moving.
[0007] Furthermore, a magnetic attraction device is provided on the inner wall of the welding machine corresponding to the axial direction of the air gun connecting shaft. When the air gun connecting shaft moves close to the area directly below the induction switch, the magnetic attraction device can magnetically position the air gun connecting shaft.
[0008] Furthermore, a mounting plate is provided at the upper end of the guide bracket. The surface of the mounting plate is provided with a waist-shaped groove. The proximity sensor is installed in the waist-shaped groove. The proximity sensor can be adjusted in position in the waist-shaped groove and then fixed in place.
[0009] Furthermore, the magnetic suction device is bolted to the inner wall of the welding machine, and rotating the magnetic suction device can adjust the distance between it and the connecting shaft of the air gun.
[0010] Furthermore, a bearing seat is fitted onto the surface of the air gun connecting shaft, and the bearing seat is fixedly installed on the welding machine, allowing the air gun connecting shaft to translate and rotate axially within the bearing seat.
[0011] The advantages of this utility model are:
[0012] The guide bracket is installed inside the welding machine, making the welding machine more aesthetically pleasing. The guide bracket and its corresponding cooperating mechanism have a compact structure, which can reduce the overall size of the welding machine.
[0013] The guide groove guides the air gun connecting shaft and also uses a hook structure to hang and unlock the air gun, making the operation simple and more reliable.
[0014] When the air gun connecting shaft moves to the position directly below the proximity sensor switch, it is in the working position, and the proximity sensor switch triggers the welding machine wheel to move.
[0015] The magnetic attraction device can hold the air gun connecting shaft in this position. Without the application of a certain external force, the air gun connecting shaft cannot be moved, thus ensuring the stability of the working state.
[0016] Both the proximity sensor switch and the magnetic attraction device allow for small-amplitude position adjustments, enabling the welding machine to adapt to different working requirements and making it more versatile. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the welding machine in the movable mechanism of a welding machine air gun according to this utility model.
[0018] Figure 2 This is a schematic diagram of the movable mechanism of a welding machine hot air gun according to the present invention.
[0019] Figure 3 This is a schematic diagram of the movable mechanism of a welding machine hot air gun according to the present invention.
[0020] Figure 4 This is a schematic diagram showing the welding machine in operation with the air gun connecting shaft magnetically fixed.
[0021] Figure 5 This is a schematic diagram of the air gun connecting shaft being held up by a hook structure in its non-working state.
[0022] Reference numerals in the attached drawings: 1. Welding machine; 2. Air gun; 3. Air gun connecting shaft; 4. Bearing seat; 5. Proximity sensor switch; 6. Mounting plate; 7. Guide bracket; 9. Magnetic suction device; 10. Guide groove; 11. Hook structure; 12. Guide column. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] A movable mechanism for a welding gun includes a guide bracket 7 disposed inside a welding machine 1 and a gun connecting shaft 3 penetrating inside and outside the welding machine 1. The guide bracket 7 has a guide groove 10 on its surface, and a hook structure 11 is provided at one end of the guide groove 10. One end of the gun connecting shaft 3 is connected to the gun 2, and the other end has a guide post 12. The guide post 12 moves within the guide groove 10. When the guide post 12 moves to the hook structure 11, the hook structure 11 restricts its translational movement. A proximity sensor switch 5 is provided at the upper end of the guide bracket 7. When the gun connecting shaft 3 moves directly below the proximity switch, the welding machine 1 begins to move; when the gun connecting shaft 3 moves away from directly below the proximity switch, the welding machine 1 stops moving. A magnetic suction device 9 is also provided on the inner wall of the welding machine 1, corresponding axially to the gun connecting shaft 3. When the gun connecting shaft 3 moves directly below the proximity sensor switch 5, the magnetic suction device 9 can magnetically position the gun connecting shaft 3. A mounting plate 6 is provided at the upper end of the guide bracket 7. The surface of the mounting plate 6 has a slotted hole, in which a proximity sensor 5 is installed. The proximity sensor 5 can be fixed after its position is adjusted in the slot. A magnetic suction device 9 is installed on the inner wall of the welding machine 1 by bolts. Rotating the magnetic suction device 9 can adjust the distance between it and the air gun connecting shaft 3. A bearing seat 4 is fitted on the surface of the air gun connecting shaft 3. The bearing seat 4 is fixedly installed on the welding machine 1, and the air gun connecting shaft 3 can move and rotate axially within the bearing seat 4.
[0025] The actual usage method is as follows:
[0026] The air gun 2 is in working condition:
[0027] like Figure 4 As shown, the guide post 12 is located at the right end of the guide groove 10. The magnetic attraction device 9 has an attraction force on the air gun connecting shaft 3, which can keep it in this position. When the position is close to the induction switch 5, the air gun connecting shaft 3 is detected to be directly below, and the drive wheel of the welding machine 1 continues to move.
[0028] Status switching (switching from working state to non-working state):
[0029] like Figure 5 As shown, by pulling the air gun 2 to the left, the air gun connecting shaft 3 is disengaged from the sensing area of the proximity sensor switch 5, and the drive wheel of the welding machine 1 stops. When the guide post 12 reaches the left end of the guide groove 10, the air gun 2 is rotated upward, and the guide post 12 enters the hook structure 11. At this time, the air gun 2 is released, and the air gun 2 can be kept in the hanging state.
[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects. The scope of this invention is defined by the appended claims rather than the foregoing description, and it is therefore intended to include all variations falling within the meaning and scope of the equivalents of the claims within this invention.
Claims
1. A movable mechanism for a welding machine hot air gun, characterized in that, Includes a guide bracket (7) installed inside the welding machine (1) and a hot air gun connecting shaft (3) that runs through the inside and outside of the welding machine (1). The guide bracket (7) has a guide groove (10) on its surface. A hook structure (11) is provided at one end of the guide groove (10). One end of the hot air gun connecting shaft (3) is connected to the hot air gun (2), and the other end is provided with a guide post (12). The guide post (12) moves in the guide groove (10). When the guide post (12) moves to the hook structure (11), the hook structure (11) can keep the hot air gun (2) in a suspended state.
2. The movable mechanism of a welding machine hot air gun according to claim 1, characterized in that, The upper end of the guide bracket (7) is equipped with a proximity sensor switch (5). When the air gun connecting shaft (3) moves to the area directly below the proximity switch, the welding machine (1) starts to move. When the air gun connecting shaft (3) leaves the area directly below the proximity switch, the welding machine (1) stops moving.
3. The movable mechanism of a welding machine hot air gun according to claim 2, characterized in that, On the inner wall of the welding machine (1) corresponding to the axial direction of the air gun connecting shaft (3), there is also a magnetic suction device (9). When the air gun connecting shaft (3) moves to the area directly below the induction switch (5), the magnetic suction device (9) can magnetically position the air gun connecting shaft (3).
4. The movable mechanism of a welding machine hot air gun according to claim 3, characterized in that, An installation plate (6) is provided at the upper end of the guide bracket (7). The surface of the installation plate (6) is provided with a waist hole groove. The proximity sensor (5) is installed in the waist hole groove. The proximity sensor (5) can be installed and fixed after adjusting its position in the waist hole groove.
5. The movable mechanism of a welding machine hot air gun according to claim 4, characterized in that, The magnetic suction device (9) is installed on the inner wall of the welding machine (1) by bolts. By rotating the magnetic suction device (9), the distance between it and the air gun connecting shaft (3) can be adjusted.
6. The movable mechanism of a welding machine hot air gun according to claim 5, characterized in that, The surface of the air gun connecting shaft (3) is fitted with a bearing seat (4), which is fixedly installed on the welding machine (1). The air gun connecting shaft (3) can be axially translated and rotated in the bearing seat (4).