Wave soldering device with uniform air distribution function

Abstract

The invention discloses a wave-soldering welding device with a uniform air distribution function, and relates to the technical field of welding devices.The welding device comprises a uniform air distribution mechanism, a wave crest forming mechanism, an air volume regulation and control mechanism, a supporting and fixing mechanism and a self-cleaning mechanism, and the uniform air distribution mechanism communicates with the air volume regulation and control mechanism; the air quantity regulation and control mechanism is connected with the self-cleaning mechanism in a fastening mode, the uniform air distribution mechanism is connected with the supporting and fixing mechanism in a fastening mode, the wave crest forming mechanism is connected with the supporting and fixing mechanism in a fastening mode, and the welding device achieves the collaborative welding effect through cooperation of the uniform air distribution mechanism, the wave crest forming mechanism, the air quantity regulation and control mechanism, the supporting and fixing mechanism and the self-cleaning mechanism. The uniform air distribution mechanism is used for forming a uniform airflow barrier in a welding area, the wave crest forming mechanism generates tin waves, the air volume regulating mechanism is located between the air distribution mechanism and the wave crest mechanism and controls and regulates the air volume entering the air distribution channel, and the self-cleaning mechanism is used for preventing dust or welding slag surfacing.

Description

Technical Field

[0001] The present invention relates to the technical field of soldering devices, in particular to a wave soldering device with a uniform air distribution function. Background Art

[0002] With the rapid development of the electronics manufacturing industry, wave soldering technology is increasingly being used in circuit board assembly. Wave soldering equipment uses molten solder to form waves, efficiently connecting printed circuit boards (PCBs) to electronic components, and has become one of the core processes in modern electronics manufacturing.

[0003] Currently, wave soldering equipment generally relies on a fixed air duct structure to achieve temperature uniformity and solder fluidity optimization in the soldering area.

[0004] In the existing technology, the air flow distribution in the air duct is fixed, and there is a lack of a multi-channel independent control structure, which makes it difficult to meet the differentiated requirements of the complex welding area for the air flow angle and intensity; the welding atmosphere control relies on the electronic feedback system, the control accuracy is limited, and the structural adaptive adjustment cannot be achieved; the welding liquid level control is disconnected from the air flow regulation, and the linkage dynamic balance control cannot be achieved, which affects the stability of the tin peak; there is a lack of an integrated self-cleaning mechanism, and frequent manual intervention is required, resulting in high maintenance costs and low equipment utilization. Therefore, those skilled in the art provide a wave soldering device with a uniform air distribution function to solve the problems raised in the above background. Summary of the Invention

[0005] The object of the present invention is to provide a wave soldering device with a uniform air distribution function to solve the problems raised in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: The welding device includes a uniform air distribution mechanism, a peak forming mechanism, an air volume control mechanism, a support and fixing mechanism and a self-cleaning mechanism. The uniform air distribution mechanism and the air volume control mechanism are connected, the air volume control mechanism and the self-cleaning mechanism are tightly connected, the uniform air distribution mechanism and the support and fixing mechanism are tightly connected, and the peak forming mechanism and the support and fixing mechanism are tightly connected.

[0007] By adopting the above technical solution, the welding device achieves a synergistic welding effect through the cooperation of a uniform air distribution mechanism, a wave crest forming mechanism, an air volume control mechanism, a support and fixing mechanism, and a self-cleaning mechanism. Among them, the uniform air distribution mechanism is used to form a uniform airflow barrier in the welding area and control the distribution of the protective atmosphere. Specifically, the airflow is distributed to the welding work surface through the air guide components arranged in the structure; the wave crest forming mechanism generates a constant tin wave to achieve full contact between the solder joint and the tin liquid to form a high-quality weld; the air volume control mechanism is located between the air distribution mechanism and the wave crest mechanism, and adjusts the air volume entering the air distribution channel through detection and feedback control to ensure stable airflow in the welding area; the support and fixing mechanism provides positioning support and dynamic vibration isolation for the entire machine structure, and reduces the displacement and vibration caused by equipment operation or welding impact through a multi-stage buffer structure; the self-cleaning mechanism is arranged near the air volume control mechanism, and maintains the airflow channel unobstructed through periodic cleaning actions to prevent dust or welding slag accumulation.

[0008] Furthermore, the uniform air distribution mechanism includes an air duct assembly, a pressure regulating assembly and a pulsating fan. The air duct assembly and the supporting and fixing mechanism are fastened together, the pressure regulating assembly and the air duct assembly are fastened together, the air duct assembly and the pulsating fan are connected, and the pulsating fan and the air volume control mechanism are connected together.

[0009] By adopting the above technical solution, the uniform air distribution mechanism achieves uniform airflow distribution in the welding area by arranging an air duct assembly, a pressure regulating assembly, and a pulsating fan. The air duct assembly consists of a divided air duct body forming the main channel, with multiple internal cavities for multi-point air distribution. The pulsating fan provides pulsating airflow, improving the airflow disturbance capability and enhancing the stability of the welding atmosphere. The pressure regulating assembly adjusts the airflow pressure balance between the cavities, thereby ensuring uniform temperature and protective atmosphere distribution in the welding area. The air duct assembly is fixed by a supporting fixture, further improving the stability and vibration resistance of the overall structure.

[0010] Furthermore, the air duct assembly includes a cavity air duct body, a rectifying piece and an adjustable air guide louver. The air volume control mechanism and the cavity air duct body are fastened together. The adjustable air guide louver and the cavity air duct body are rotatably connected. The adjustable air guide louver is located in each cavity of the cavity air duct body. The rectifying piece and the adjustable air guide louver are fastened together. The rotation angle of the adjustable air guide louver is 0° to 90°.

[0011] By adopting the above technical solution, the sub-cavity air duct body in the air duct assembly forms a multi-channel structure, with each channel corresponding to a different welding section. Adjustable air guide louvers are inserted into each cavity by rotation to achieve wind direction guidance and air volume adjustment. The rotation angle can be changed from 0° to 90° to accommodate different welding angles and airflow requirements. The rectifier is set on one side of the air guide louver to reduce wind flow vortex and improve airflow stability. The air volume control mechanism is tightly connected to the sub-cavity air duct body to ensure the directionality and intensity of the airflow input. The overall structure improves the controllability and adaptability of the airflow during the welding process.

[0012] Furthermore, the pressure regulation component includes a micro electric air valve, a wind pressure sensor and an air intake resonator. The micro electric air valve is connected to the cavity air duct body, the wind pressure sensor is firmly connected to the cavity air duct body, the cavity air duct body is connected to the air intake resonator, and the air intake resonator is connected to the pulsating fan.

[0013] By employing this technical solution, the pressure-regulating assembly controls the airflow entering the sub-cavity air duct body via a micro-electric damper. A pressure sensor monitors pressure changes within each cavity in real time, ensuring airflow uniformity and pressure stability. An intake resonator, located between the pulsating blower and the sub-cavity air duct body, integrates the frequency and impedance of the high-frequency pulsating airflow, allowing the pulsating blower's output to enter the duct after being tuned. This improves the response speed and stability of airflow control, thereby ensuring a constant atmosphere distribution and optimizing energy consumption within the welding environment.

[0014] Furthermore, the wave crest forming mechanism includes a wave crest trough assembly, a plate electric slide and a tin furnace nozzle. The wave crest trough assembly and the plate electric slide are fastened together, and the tin furnace nozzle is connected to the wave crest trough assembly.

[0015] By employing this technical solution, the wave crest-forming mechanism forms a stable molten tin wave through the wave trough assembly. The electric panel carriage controls the trajectory and angle of the panel being welded along the wave crest, achieving multi-angle welding coverage. The tin pot nozzle is connected to the wave trough assembly, ensuring a continuous supply of molten tin and a constant temperature, effectively improving the quality of the welded joint. The stability and controllability of the wave crest structure ensures higher welding quality and adapts to the welding needs of various thicknesses and materials.

[0016] Furthermore, the wave peak trough body assembly includes a trough body box, a heating box plate and a heating circulation pump. The heating box plate and the trough body box are tightly connected. A circulation channel is provided between the heating box plate and the trough body box. The circulation channel is connected to the heating circulation pump. The heating circulation pump is connected to the air volume control mechanism. The heating box plate is placed at an angle. The tin furnace nozzle and the heating box plate are tightly connected. The tin furnace nozzle and the heating box plate are placed vertically.

[0017] By adopting this technical solution, the trough box in the wave crest trough assembly forms the main containment structure, and the heating plate is fastened to the trough box, forming the molten tin heating and diversion area. A circulation channel is provided between the trough box and the heating plate to circulate the molten tin. A heating circulation pump forces the molten tin to circulate, improving heat transfer efficiency and wave crest uniformity. The heating plate is installed at an angle, allowing the molten tin to flow naturally into the tin furnace nozzle. The vertically mounted nozzle sprays the molten tin stably, forming a regular wave crest, effectively controlling the tin crest shape and improving soldering consistency.

[0018] Furthermore, the air volume control mechanism includes a liquid level gauge component and an iris component, the liquid level gauge component and the iris component are transmission-connected, the iris component and the cavity air duct body are fastened together, the liquid level gauge component is connected to the tin furnace nozzle, and the liquid level gauge component is connected to the heating circulation pump.

[0019] By employing this technical solution, the liquid level gauge component within the air volume control mechanism monitors the liquid level in the solder pot nozzle in real time. The iris assembly adjusts the intake air volume based on this liquid level feedback, ensuring stable tin output and consistent tin peak height. The iris assembly is mechanically securely connected to the sub-cavity air duct body, ensuring timely air intake feedback and precise transmission response. The liquid level gauge component is also connected to the heating circulation pump to achieve self-balancing liquid level control during the soldering process, preventing solder defects caused by excessive or insufficient tin liquid.

[0020] Furthermore, the liquid level gauge assembly includes a floating rod, a floating plate, a tin material box and a reset elastic member. The floating rod and the iris assembly are transmission-connected, the floating rod and the tin material box are slidingly connected, the floating plate and the tin material box are slidingly connected, the floating plate and the reset elastic member are fastened together, and the reset elastic member and the tin material box are fastened together.

[0021] Using this technical solution, the liquid level gauge assembly senses the liquid level through a combination of a floating rod and a floating plate. The floating rod is mechanically connected to the iris assembly and slides within the tin tank, pushing the floating plate vertically as the tin liquid rises or falls. A resilient element is attached to one end of the floating plate, allowing it to return to its initial position when the tin liquid is no longer supporting it. The sliding movement of the floating rod and the floating plate ensures a smooth liquid level response, while the resilient element provides a rebound force, maintaining the sensitivity and repeatability of the entire liquid level monitoring system and ensuring that the tin liquid is always at the appropriate level.

[0022] Furthermore, the supporting and fixing mechanism includes a shock-absorbing spring, a damper and a supporting box, the supporting box and the damper are fastened together, the damper and the shock-absorbing spring are fastened together, and the shock-absorbing spring and the trough box are fastened together.

[0023] By adopting this technical solution, the support and fixing mechanism forms a multi-layered buffer structure with a support box, dampers, and shock-absorbing springs. The shock-absorbing springs are directly fastened to the trough box, providing primary elastic support. The dampers absorb dynamic impact energy, preventing the wave crest trough from vibrating and causing waveform instability during welding. The support box serves as the overall load-bearing structure, improving the vibration rigidity of the entire machine, ensuring stable operation of the welding equipment under different operating conditions, and reducing equipment wear and maintenance frequency.

[0024] Furthermore, the self-cleaning mechanism includes a cleaning brush, a cleaning motor, a floating electromagnetic block, a floating magnetic block and a floating elastic part. The cleaning motor and the floating magnetic block are fastened together, the cleaning motor and the cleaning brush are transmission-connected, the floating elastic part and the floating electromagnetic block are fastened together, the floating elastic part and the floating magnetic block are fastened together, the floating electromagnetic block and the cavity air duct body are fastened together, and the floating magnetic block and the cavity air duct body are slidingly connected.

[0025] By adopting this technical solution, the self-cleaning mechanism uses a cleaning motor to drive the rotation of a cleaning brush, periodically cleaning impurities deposited on the surface of the sub-cavity air duct body. The cleaning brush is connected to the floating magnetic block via a transmission connection. The floating magnetic block slides with the sub-cavity air duct body to maintain contact during the cleaning process. The floating electromagnetic block is firmly connected to the sub-cavity air duct body, and the elastic restoring force of the floating elastic member ensures that the cleaning component automatically resets when not in operation, improving the structural simplicity and durability. This integrated self-cleaning mechanism reduces the frequency of manual maintenance, maintains unobstructed airflow, and improves airflow control accuracy and system reliability.

[0026] Compared with the prior art, the present invention has the following beneficial effects: Mechanical regulation of multi-channel airflow distribution is achieved through the coordination of the cavity duct body, adjustable air guide louvers, and rectifiers in the air duct assembly. The adjustable air guide louvers are inserted into each channel of the cavity duct body, and their rotation angle is adjustable from 0° to 90°, which can precisely change the wind direction and air volume to adapt to different welding sections. The rectifier is installed behind the louver air outlet to weaken the airflow vortex and improve the smoothness of gas flow. The above structure controls the airflow direction through mechanical adjustment, constructing a dynamically variable atmosphere barrier to ensure that the welding area is controlled and uniform. The pressure regulation assembly uses an intake resonator, a micro-electric air valve, and an air pressure sensor to collaboratively construct a closed-loop feedback control system. The intake resonator is installed between the pulsating fan and the cavity duct body to mechanically match the high-frequency pulsating airflow and balance the airflow response. The micro-electric air valve is located at the main air inlet and its opening can be adjusted by a micromotor. The air pressure sensor collects real-time air pressure feedback in each channel to achieve dynamic closed-loop regulation of the air valve. Provide wind pressure control to maintain consistent airflow conditions in multiple cavities and improve the stability of the welding atmosphere; the liquid level gauge assembly consists of a floating rod, a floating plate, a tin material box and a reset elastic member. The floating rod and the iris assembly form a mechanical transmission connection. The floating plate moves vertically under the buoyancy of the tin liquid, driving the floating rod to adjust the opening of the iris assembly to control the air flow, thereby automatically adjusting the tin peak height. When the tin liquid decreases, the floating plate sinks and drives the floating rod to reset, relying on the elastic member to restore the initial closed state, realizing dynamic self-balancing control of the tin liquid height, ensuring the stability of the peak height and welding consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic structural diagram of the uniform air distribution mechanism of the present invention; Figure 3 This is a schematic structural diagram of the air duct assembly of the present invention; Figure 4 This is a schematic structural diagram of the voltage-dividing regulating assembly of the present invention; Figure 5 Schematic diagram of the structure of the wave crest forming mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the wave crest trough assembly of the present invention; Figure 7 This is a schematic diagram of the structure of the air volume control mechanism of the present invention; Figure 8 This is a schematic diagram of the supporting and fixing mechanism structure of the present invention; Figure 9 It is a structural schematic diagram of the self-cleaning mechanism of the present invention.

[0028] Figure: 1. Uniform air distribution mechanism; 11. Air duct assembly; 111. Divided cavity air duct body; 112. Rectifier; 113. Adjustable air guide louvers; 12. Pressure adjustment assembly; 121. Micro electric air valve; 122. Air pressure sensor; 123. Intake resonator; 13. Pulsating fan; 2. Peak forming mechanism; 21. Peak trough assembly; 211. Trough box; 2111. Circulating flow channel; 212. Heating box plate; 213. Heating circulation pump; 22 , plate electric slide; 23, tin furnace nozzle; 3, air volume control mechanism; 31, liquid level gauge assembly; 311, floating rod; 312, floating plate; 313, tin material box; 314, reset elastic member; 32, iris assembly; 4, support and fixing mechanism; 41, shock-absorbing spring; 42, damper; 43, support box; 5, self-cleaning mechanism; 51, cleaning brush; 52, cleaning motor; 53, floating electromagnetic block; 54, floating magnetic block; 55, floating elastic member. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1 - Figure 9 As shown, the present invention provides a technical solution for a wave soldering device with a uniform air distribution function: The welding device includes a uniform air distribution mechanism 1, a peak forming mechanism 2, an air volume control mechanism 3, a supporting and fixing mechanism 4 and a self-cleaning mechanism 5. The uniform air distribution mechanism 1 and the air volume control mechanism 3 are connected, the air volume control mechanism 3 and the self-cleaning mechanism 5 are tightly connected, the uniform air distribution mechanism 1 and the supporting and fixing mechanism 4 are tightly connected, and the peak forming mechanism 2 and the supporting and fixing mechanism 4 are tightly connected.

[0031] By adopting the above technical solution, the welding device achieves a synergistic welding effect through the cooperation of the uniform air distribution mechanism 1, the wave crest forming mechanism 2, the air volume control mechanism 3, the support and fixing mechanism 4 and the self-cleaning mechanism 5. Among them, the uniform air distribution mechanism 1 is used to form a uniform airflow barrier in the welding area and control the distribution of the protective atmosphere. Specifically, the airflow is distributed to the welding work surface in a directional manner through the air guide components arranged in the structure; the wave crest forming mechanism 2 generates a constant tin wave to achieve full contact between the solder joint and the tin liquid to form a high-quality weld; the air volume control mechanism 3 is located between the air distribution mechanism and the wave crest mechanism, and adjusts the air volume entering the air distribution channel through detection and feedback control to ensure stable airflow in the welding area; the support and fixing mechanism 4 provides positioning support and dynamic vibration isolation for the entire machine structure, and reduces the displacement and vibration caused by equipment operation or welding impact through a multi-stage buffer structure; the self-cleaning mechanism 5 is arranged near the air volume control mechanism 3, and maintains the airflow channel unobstructed through periodic cleaning actions to prevent dust or welding slag accumulation.

[0032] Furthermore, the uniform air distribution mechanism 1 includes an air duct component 11, a pressure regulating component 12 and a pulsating fan 13. The air duct component 11 is fastened to the supporting and fixing mechanism 4, the pressure regulating component 12 is fastened to the air duct component 11, the air duct component 11 is connected to the pulsating fan 13, and the pulsating fan 13 is connected to the air volume control mechanism 3.

[0033] By adopting the above technical solution, the uniform air distribution mechanism 1 achieves uniform distribution of airflow in the welding area by providing an air duct assembly 11, a pressure regulating assembly 12, and a pulsating fan 13. The air duct assembly 11 is composed of a cavity air duct body 111 forming the main channel, and multiple cavities are provided inside for multi-point air distribution. The pulsating fan 13 provides pulsating airflow, improving the airflow disturbance capability and enhancing the stability of the atmosphere during welding. The pressure regulating assembly 12 adjusts the pressure balance of the airflow in each cavity, thereby ensuring uniform distribution of temperature and protective atmosphere in the welding area. The air duct assembly 11 is fixed by a supporting fixing mechanism 4, further improving the stability and vibration resistance of the overall structure.

[0034] Furthermore, the air duct assembly 11 includes a cavity air duct body 111, a rectifying piece 112 and an adjustable air guide louver 113. The air volume control mechanism 3 is fastened to the cavity air duct body 111. The adjustable air guide louver 113 is rotatably connected to the cavity air duct body 111. The adjustable air guide louver 113 is located in each cavity of the cavity air duct body 111. The rectifying piece 112 and the adjustable air guide louver 113 are fastened to each other. The rotation angle of the adjustable air guide louver 113 is 0° to 90°.

[0035] By adopting the above technical solution, the cavity air duct body 111 in the air duct assembly 11 forms a multi-channel structure, each channel corresponds to a different welding section, and the adjustable air guide louvers 113 are inserted into each cavity by rotation to achieve wind direction guidance and air volume adjustment. The rotation angle is variable from 0° to 90° to adapt to different welding angles and airflow requirements. The rectifier 112 is set on one side of the air guide louver to reduce wind flow vortex and improve airflow stability. The air volume control mechanism 3 is tightly connected to the cavity air duct body 111 to ensure the directionality and intensity of the airflow input. The overall structure improves the controllability and adaptability of the airflow during welding.

[0036] Furthermore, the pressure regulation component 12 includes a micro electric air valve 121, a wind pressure sensor 122 and an air intake resonator 123. The micro electric air valve 121 is connected to the cavity air duct body 111, the wind pressure sensor 122 is firmly connected to the cavity air duct body 111, the cavity air duct body 111 is connected to the air intake resonator 123, and the air intake resonator 123 is connected to the pulsating fan 13.

[0037] By employing this technical solution, the pressure-regulating assembly 12 controls the amount of air entering the sub-cavity air duct body 111 via a micro-electric damper 121. The air pressure sensor 122 monitors pressure changes within each cavity in real time, ensuring airflow uniformity and pressure stability. An inlet resonator 123, located between the pulsating blower 13 and the sub-cavity air duct body 111, integrates the frequency and impedance of the high-frequency pulsating airflow, ensuring that the airflow output by the pulsating blower 13 enters the air duct after being tuned. This improves the response speed and stability of airflow control, thereby ensuring a constant atmosphere distribution and optimizing energy consumption within the welding environment.

[0038] Furthermore, the wave crest forming mechanism 2 includes a wave crest trough assembly 21, a plate electric slide 22 and a tin furnace nozzle 23. The wave crest trough assembly 21 and the plate electric slide 22 are fastened together, and the tin furnace nozzle 23 and the wave crest trough assembly 21 are connected.

[0039] By employing this technical solution, the wave crest forming mechanism 2 forms a stable molten tin wave through the wave crest trough assembly 21. The plate motorized carriage 22 controls the trajectory and angle of the welded plate along the wave crest, achieving multi-angle welding coverage. The tin pot nozzle 23 is connected to the wave crest trough assembly 21, ensuring a continuous supply of molten tin and a constant temperature, effectively improving the quality of the welded joint. The stability and controllability of the wave crest structure ensures higher welding quality and adapts to the welding needs of different thicknesses and materials.

[0040] Furthermore, the wave peak trough body assembly 21 includes a trough body box 211, a heating box plate 212 and a heating circulation pump 213. The heating box plate 212 and the trough body box 211 are firmly connected. A circulation channel 2111 is provided between the heating box plate 212 and the trough body box 211. The circulation channel 2111 is connected to the heating circulation pump 213. The heating circulation pump 213 is connected to the air volume control mechanism 3. The heating box plate 212 is placed at an angle. The tin furnace nozzle 23 and the heating box plate 212 are firmly connected. The tin furnace nozzle 23 and the heating box plate 212 are placed vertically.

[0041] By adopting the above technical solution, the tank box 211 in the wave crest tank assembly 21 constitutes the main containment structure, and the heating box plate 212 is fixed to the tank box 211 by fastening, forming a tin liquid heating and diversion area. A circulation channel 2111 is provided between the tank box 211 and the heating box plate 212 for the circulation of molten tin. The heating circulation pump 213 forces the tin liquid to circulate, improving heat conduction efficiency and wave crest uniformity. The heating box plate 212 is installed at an angle, allowing the tin liquid to flow naturally into the tin furnace nozzle 23. The tin liquid is stably sprayed out through the vertically arranged nozzle, forming a regular wave crest, effectively controlling the tin peak shape, and improving welding consistency.

[0042] Furthermore, the air volume control mechanism 3 includes a liquid level gauge component 31 and an iris component 32. The liquid level gauge component 31 and the iris component 32 are transmission-connected. The iris component 32 and the cavity air duct body 111 are fastened together. The liquid level gauge component 31 and the tin furnace nozzle 23 are connected. The liquid level gauge component 31 and the heating circulation pump 213 are connected.

[0043] By employing this technical solution, the liquid level gauge assembly 31 within the air volume control mechanism 3 monitors the liquid level changes in the solder pot nozzle 23 in real time. The iris assembly 32 adjusts the intake air volume based on this liquid level feedback, ensuring stable tin output and consistent tin peak height. The iris assembly 32 is mechanically securely connected to the chambered air duct body 111, ensuring timely air intake feedback and precise transmission response. The liquid level gauge assembly 31 is also connected to the heating circulation pump 213, enabling self-balancing liquid level control during the soldering process, preventing solder defects caused by excessive or insufficient tin.

[0044] Furthermore, the liquid level gauge assembly 31 includes a floating rod 311, a floating plate 312, a tin material box 313 and a reset elastic member 314. The floating rod 311 and the iris assembly 32 are transmission-connected, the floating rod 311 and the tin material box 313 are slidingly connected, the floating plate 312 and the tin material box 313 are slidingly connected, the floating plate 312 and the reset elastic member 314 are fastened together, and the reset elastic member 314 and the tin material box 313 are fastened together.

[0045] By employing the above-described technical solution, the liquid level gauge assembly 31 senses the liquid level through a combination of a floating rod 311 and a floating plate 312. The floating rod 311 is mechanically connected to the iris assembly 32 and slides within the tin tank 313. This mechanism pushes the floating plate 312 vertically as the tin liquid rises or falls. One end of the floating plate 312 is connected to a return spring 314, which allows it to return to its initial position when no tin liquid is present. The sliding movement of the floating rod 311 and the floating plate 312 ensures a smooth liquid level response, while the return spring 314 provides a rebound force, maintaining the sensitivity and repeatability of the entire liquid level monitoring system and ensuring that the tin liquid is always at the appropriate level.

[0046] Furthermore, the supporting and fixing mechanism 4 includes a shock-absorbing spring 41, a damper 42 and a supporting box 43. The supporting box 43 and the damper 42 are fastened together. The damper 42 and the shock-absorbing spring 41 are fastened together. The shock-absorbing spring 41 and the tank box 211 are fastened together.

[0047] By adopting this technical solution, the support and fixing mechanism 4 forms a multi-layered buffer structure with a support box 43, a damper 42, and a shock-absorbing spring 41. The shock-absorbing spring 41 is directly fastened to the tank box 211, providing primary elastic support. The damper 42 absorbs dynamic impact energy, preventing the wave crest tank from vibrating and causing waveform instability during welding. The support box 43 serves as the overall load-bearing structure, improving the vibration rigidity of the entire machine, ensuring stable operation of the welding equipment under different operating conditions, and reducing equipment wear and maintenance frequency.

[0048] Furthermore, the self-cleaning mechanism 5 includes a cleaning brush 51, a cleaning motor 52, a floating electromagnetic block 53, a floating magnetic block 54 and a floating elastic member 55. The cleaning motor 52 and the floating magnetic block 54 are fastened together, the cleaning motor 52 and the cleaning brush 51 are transmission-connected, the floating elastic member 55 and the floating electromagnetic block 53 are fastened together, the floating elastic member 55 and the floating magnetic block 54 are fastened together, the floating electromagnetic block 53 and the chamber air duct body 111 are fastened together, and the floating magnetic block 54 and the chamber air duct body 111 are slidingly connected.

[0049] By adopting the above technical solution, the self-cleaning mechanism 5 drives the cleaning brush 51 to rotate through the cleaning motor 52, and periodically cleans the impurities deposited on the surface of the cavity air duct body 111. The cleaning brush 51 is connected to the floating magnetic block 54 through a transmission connection. The floating magnetic block 54 slides with the cavity air duct body 111 and maintains contact during the cleaning process. The floating electromagnetic block 53 is tightly connected to the cavity air duct body 111, and the elastic restoring force of the floating elastic member 55 ensures that the cleaning component automatically resets in the non-working state, thereby improving the simplicity and durability of the structure. The overall self-cleaning mechanism 5 reduces the frequency of manual maintenance, keeps the airflow channel unobstructed, and improves the accuracy of airflow control and system reliability.

[0050] Working principle of the present invention: Through the cooperation of the cavity air duct body 111, the adjustable air guide louvers 113 and the rectifying pieces 112 in the air duct assembly 11, mechanical control of the multi-channel air flow distribution is achieved: the adjustable air guide louvers 113 are inserted in each channel of the cavity air duct body 111, and their rotation angle is adjustable from 0° to 90°, which can accurately change the wind direction and air volume to adapt to different welding sections; the rectifying pieces 112 are installed behind the louver air outlet to weaken the air flow vortex and improve the smoothness of the gas flow. The above structure controls the airflow direction through mechanical adjustment to construct a dynamically variable atmosphere barrier to ensure that the welding area is evenly controlled; the pressure regulation component 12 uses the air intake resonator 123, the micro electric air valve 121 and the wind pressure sensor 122 to collaboratively construct a closed-loop feedback control system. The air intake resonator 123 is installed between the pulsating fan 13 and the cavity air duct body 111 to perform mechanical impedance matching on the high-frequency pulsating airflow and balance the airflow response; the micro electric air valve 121 is located at the main air inlet and the opening can be adjusted by a micro motor; the wind pressure sensor 122 collects the air pressure feedback in each channel in real time to realize dynamic closed-loop adjustment of the air valve. Provide wind pressure control to maintain consistent airflow conditions in multiple cavities and improve the stability of the welding atmosphere; the liquid level gauge assembly 31 consists of a floating rod 311, a floating plate 312, a tin material box 313 and a reset elastic member 314. The floating rod 311 and the iris assembly 32 form a mechanical transmission connection. The floating plate 312 moves vertically under the buoyancy of the tin liquid, driving the floating rod 311 to adjust the opening of the iris assembly 32 to control the air flow, thereby automatically adjusting the tin peak height. When the tin liquid decreases, the floating plate 312 sinks and drives the floating rod 311 to reset, relying on the elastic member to restore the initial closed state, realizing dynamic self-balancing control of the tin liquid height, ensuring the stability of the peak height and welding consistency.

[0051] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A wave soldering device with a uniform air distribution function, characterized in that: The welding device comprises a uniform air distribution mechanism (1), a wave crest forming mechanism (2), an air volume control mechanism (3), a support and fixing mechanism (4) and a self-cleaning mechanism (5); the uniform air distribution mechanism (1) and the air volume control mechanism (3) are connected; the air volume control mechanism (3) and the self-cleaning mechanism (5) are fastened together; the uniform air distribution mechanism (1) and the support and fixing mechanism (4) are fastened together; and the wave crest forming mechanism (2) and the support and fixing mechanism (4) are fastened together.

2. The wave soldering device with uniform air distribution function according to claim 1, characterized in that: The uniform air distribution mechanism (1) comprises an air duct assembly (11), a partial pressure regulating assembly (12) and a pulsating fan (13); the air duct assembly (11) is fastened to the supporting and fixing mechanism (4); the partial pressure regulating assembly (12) is fastened to the air duct assembly (11); the air duct assembly (11) is connected to the pulsating fan (13); and the pulsating fan (13) is connected to the air volume control mechanism (3).

3. The wave soldering device with uniform air distribution function according to claim 2, characterized in that: The air duct assembly (11) comprises a cavity air duct body (111), a rectifying piece (112) and an adjustable air guide louver (113); the air volume control mechanism (3) is fastened to the cavity air duct body (111); the adjustable air guide louver (113) is rotatably connected to the cavity air duct body (111); the adjustable air guide louver (111) is located in each cavity of the cavity air duct body (111); the rectifying piece (112) is fastened to the adjustable air guide louver (111); and the adjustable air guide louver (111) has a rotation angle of 0° to 90°.

4. The wave soldering device with uniform air distribution function according to claim 3, characterized in that: The partial pressure regulating assembly (12) comprises a micro electric air valve (121), a wind pressure sensor (122) and an air intake resonator (123); the micro electric air valve (121) is in communication with the cavity air duct body (111); the wind pressure sensor (122) is fixedly connected to the cavity air duct body (111); the cavity air duct body (111) is in communication with the air intake resonator (123); and the air intake resonator (123) is in communication with the pulsating fan (13).

5. The wave soldering device with uniform air distribution function according to claim 4, characterized in that: The wave crest forming mechanism (2) comprises a wave crest trough assembly (21), a plate electric slide (22) and a tin furnace nozzle (23); the wave crest trough assembly (21) and the plate electric slide (22) are fastened together, and the tin furnace nozzle (23) and the wave crest trough assembly (21) are in communication.

6. The wave soldering device with uniform air distribution function according to claim 5, characterized in that: The wave peak trough assembly (21) comprises a trough box (211), a heating box plate (212) and a heating circulation pump (213); the heating box plate (212) and the trough box (211) are tightly connected; a circulation channel (2111) is provided between the heating box plate (212) and the trough box (211); the circulation channel (2111) is connected to the heating circulation pump (213); the heating circulation pump (213) is connected to the air volume control mechanism (3); the heating box plate (212) is tilted; the tin furnace nozzle (23) and the heating box plate (212) are tightly connected; the tin furnace nozzle (23) and the heating box plate (212) are vertically placed.

7. The wave soldering device with uniform air distribution function according to claim 6, characterized in that: The air volume control mechanism (3) comprises a liquid level gauge assembly (31) and an iris assembly (32); the liquid level gauge assembly (31) and the iris assembly (32) are transmission-connected; the iris assembly (32) and the cavity air duct body (111) are fastened together; the liquid level gauge assembly (31) and the tin furnace nozzle (23) are in communication; and the liquid level gauge assembly (31) and the heating circulation pump (213) are in communication.

8. The wave soldering device with uniform air distribution function according to claim 7, characterized in that: The liquid level gauge assembly (31) comprises a floating rod (311), a floating plate (312), a tin material box (313) and a reset elastic member (314); the floating rod (311) and the iris assembly (32) are transmission-connected; the floating rod (311) and the tin material box (313) are slidingly connected; the floating plate (312) and the tin material box (313) are slidingly connected; the floating plate (312) and the reset elastic member (314) are fastenedly connected; and the reset elastic member (314) and the tin material box (313) are fastenedly connected.

9. The wave soldering device with uniform air distribution function according to claim 8, characterized in that: The support and fixing mechanism (4) comprises a shock-absorbing spring (41), a damper (42) and a support box (43); the support box (43) and the damper (42) are fastened together; the damper (42) and the shock-absorbing spring (41) are fastened together; and the shock-absorbing spring (41) and the tank box (211) are fastened together.

10. The wave soldering device with uniform air distribution function according to claim 9, characterized in that: The self-cleaning mechanism (5) comprises a cleaning brush (51), a cleaning motor (52), a floating electromagnetic block (53), a floating magnetic block (54) and a floating elastic member (55); the cleaning motor (52) and the floating magnetic block (54) are fastened together; the cleaning motor (52) and the cleaning brush (51) are transmission-connected; the floating elastic member (55) and the floating electromagnetic block (53) are fastened together; the floating elastic member (55) and the floating magnetic block (54) are fastened together; the floating electromagnetic block (53) and the sub-cavity air duct body (111) are fastened together; and the floating magnetic block (54) and the sub-cavity air duct body (111) are slidingly connected.

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