A soldering machine smoke purification structure

Abstract

This invention relates to the field of soldering machine fume purification technology, and provides a fume purification structure for soldering machines, including a workbench for bottom support, multiple support columns fixed to the top of the workbench, protective glass plates fixedly connected to the inner side of the support columns, a front glass plate fixedly connected to the upper inner side of the front end of the support column, a top glass plate fixedly connected to the top of the support column, a soldering station fixedly connected to the middle of the top of the workbench, and a mounting bracket fixedly connected to the top of the workbench, with an electric slide rail fixedly connected to the front end of the mounting bracket. Through the guiding effect of the hourglass-shaped spiral channel, deep adsorption of flux volatiles, benzene compounds, and other organic waste gases and fine particulate matter is achieved, significantly improving the purification efficiency per pass. This makes the emptying and replacement of activated carbon filter balls and the rinsing of the spiral channel intuitive and simple, reducing equipment downtime maintenance time and manual operation difficulty.

Description

Technical Field

[0001] This invention relates to the field of soldering machine fume purification technology, specifically to a fume purification structure for soldering machines. Background Technology

[0002] During the soldering process of electronic components, the melting of solder wire at high temperatures generates a large amount of fumes. These fumes are complex in composition, containing not only tiny solder beads and flux volatiles, but also often organic waste gases such as benzene compounds and aldehydes. If discharged directly without treatment, they will not only severely pollute the workshop environment, but also cause irreversible damage to the respiratory health of operators.

[0003] Traditional filter structures typically employ a straight-line flow pattern through the filter element, with flue gas entering from one side and exiting from the other. The length of the flow path is limited by the physical thickness of the filter element. Because the effective residence time of the flue gas inside the filter element is extremely short, large molecular organic gases such as flux volatiles and benzene compounds are discharged before sufficient physical and chemical adsorption occurs with the activated carbon micropores, resulting in low purification efficiency per pass. To improve purification efficiency, multi-stage series filtration is often required, which leads to a large equipment size and a significant increase in airflow resistance. In existing welding equipment, filter components often employ a closed installation structure with integrated welding or screw fastening. When activated carbon adsorption becomes saturated or a large amount of sticky flux residue adheres to the inner wall of the channel, requiring cleaning, operators typically need to use tools to disassemble numerous external fasteners, and may even need to destructively disassemble the housing. This complex disassembly and assembly process not only reduces the convenience of equipment maintenance but also significantly increases non-productive downtime, leading to higher operating and maintenance costs for enterprises. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a flue gas purification structure for soldering machines. This structure solves the problem of extremely short effective residence time of flue gas inside the filter element. Large molecular organic gases such as flux volatiles and benzene compounds are discharged before sufficient physical and chemical adsorption occurs with the activated carbon micropores, resulting in low purification efficiency per pass and requiring the disassembly of numerous external fasteners, sometimes even necessitating destructive disassembly of the casing. This complex disassembly and assembly process not only reduces the convenience of equipment maintenance.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fume purification structure for a soldering machine, comprising a workbench for bottom support, a plurality of support columns fixed to the top of the workbench, a protective glass plate fixedly connected to the inner side of the support columns, a front glass plate fixedly connected to the upper inner side of the front end of the support columns, a top glass plate fixedly connected to the top end of the support columns, a soldering station fixedly connected to the middle of the top end of the workbench, a mounting frame fixedly connected to the top end of the workbench, an electric slide rail fixedly connected to the front end of the mounting frame, a movable frame slidably connected to the outside of the electric slide rail, and a soldering shell slidably connected to the front end of the movable frame; A connecting frame is fixedly connected to the rear bottom of the solder shell, and a solder head is fixedly connected to the bottom of the solder shell. The outside of the solder head penetrates the bottom of the connecting frame. A fume extraction component is installed at the front end of the solder shell to adsorb the fumes generated by the soldering of the solder head. The upper inner side of the solder shell has a cavity, and a connecting ring is fixedly connected to the bottom of the cavity. A fume limiting sleeve is threadedly connected to the inside of the connecting ring. Multiple lever plates are fixedly connected to the top of the fume limiting sleeve to facilitate the installation and removal of the fume limiting sleeve. A fume exhaust assembly is installed at the top of the solder shell. A connecting pipe is fixedly connected to the top of the fume limiting sleeve. A detachable kit is installed inside the fume limiting sleeve to facilitate the replacement of the internal fume filter material. A protective shell is attached to the upper front side of the solder shell.

[0006] Preferably, the flue gas extraction assembly includes an adsorption tube fixed at the middle of the front end of the solder housing, an adsorption frame fixedly connected to the front end of the connecting frame, the bottom end of the solder housing fixedly connected to the front end of the adsorption frame, a vacuum pump fixedly connected to the front end of the solder housing outside the adsorption tube, and an upper through groove opened inside the solder housing, with the upper end of the adsorption tube penetrating into the interior of the upper through groove.

[0007] Preferably, the flue gas exhaust assembly includes a support ring fixed at the top of the solder housing, a connecting sleeve nested inside the support ring, sliders fixedly connected to both sides of the connecting sleeve, the outer sides of the sliders slidably connected to the inner side of the support ring, the top of the sliders being connected to the inside of the support ring via a compression spring, an outer exhaust pipe rotatably connected inside the connecting sleeve, a lever ring fixedly connected to the upper outer side of the outer exhaust pipe for leveraging the disassembly and installation of the lever ring, and a threaded connection on the lower outer side of the outer exhaust pipe to the inside of the connecting pipe.

[0008] Preferably, the detachable kit includes multiple fixing frames fixed around the inside of the flue gas limiting sleeve, an inner liner is provided on the inner side of the flue gas limiting sleeve, multiple mounting strips are fixedly connected around the outside of the inner liner, the outer side of the mounting strips is nested inside the fixing frames, anti-slip strips are fixed on both sides of the mounting strips, a filter frame is nested inside the inner liner, and a spiral rising filter assembly is installed inside the filter frame to increase the contact area for flue gas filtration.

[0009] Preferably, the spiral rising filter assembly includes a filter slot located inside the filter frame, a bottom filter screen is fixedly connected inside the filter slot, a spiral component is fixedly connected to the upper inside of the filter slot, a flip screen plate is rotatably connected to the upper parts of both sides of the filter slot, a nesting slot is provided on the inner side of the flip screen plate, a fixing block is nested inside the nesting slot, and an external lever handle is fixedly connected to the top of the fixing block.

[0010] Preferably, the interior of the filter groove narrows and then widens again from bottom to top to form an hourglass shape, the external dimensions of the spiral component match the cavity on the upper side of the filter groove, and the spiral component widens from bottom to top, and the spiral groove is filled with activated carbon filter balls.

[0011] Preferably, support blocks are fixedly connected to the upper ends of both sides of the spiral component to limit the downward tilting of the flipped mesh plate.

[0012] Preferably, a force-bearing support ring is fixedly connected to the lower inner side of the inner liner to provide support for the bottom of the filter frame and to provide leverage during disassembly.

[0013] Preferably, a mounting block is fixedly connected to the rear end of the protective housing, and mounting slots are provided on both sides of the front end of the solder housing. The mounting block is nested into the upper side of the mounting slot and then slides down into the bottom end of the mounting slot. Magnetic blocks are fixedly connected to both sides of the bottom end of the protective housing, and the external magnetic blocks are magnetically attracted to the front top of the solder housing.

[0014] Preferably, the top of the top glass plate has an outer drainage groove, and the outer top of the outer drainage pipe is located inside the outer drainage groove.

[0015] Working Principle: During soldering, the soldering head above the soldering station solders the workpiece, generating fumes containing flux volatiles and metal particles. The suction pump activates, creating negative pressure. The inlet of the adsorption frame faces the soldering head's working area, and the fumes are rapidly drawn into the adsorption tube under this negative pressure. The fumes then flow upwards through an upper channel inside the solder housing, effectively preventing them from diffusing into the working environment. The extracted fumes enter the cavity on the upper side of the solder housing along the upper channel. There, the fumes are restricted by the bottom connecting ring and the fumes-limiting sleeve, forcing them to change direction and converge. From bottom to top, the fumes enter the filter slot inside the filter frame through the bottom opening of the fumes-limiting sleeve. The filter slot has an hourglass shape, narrowing and then widening again from bottom to top, and the spiral component matches this shape to form a spiral channel. The fumes are forced to spiral upwards along this channel. During this process, the flue gas flow path is significantly extended, increasing the contact time with the filter media. The spiral grooves are filled with activated carbon filter balls. As the flue gas slowly rises along the spiral grooves, the organic waste gas and fine particles in the flue gas are fully adsorbed by the activated carbon filter balls. Due to the increased contact area caused by the spiral design, the purification efficiency per flow is significantly higher than that of traditional planar straight-through filters. The rear end of the solder shell is connected to the moving frame via an electric slide rail, thereby ensuring the vertical movement of the solder head. When the internal filter material needs to be replaced, lift the protective housing upwards using the grooves on both sides of the protective housing, move the mounting block to the top of the mounting slot, and remove the protective housing. Rotate the lever ring to disconnect the threaded connection between the external exhaust pipe and the connecting pipe. Then, rotate the flue gas limiting sleeve using the lever to remove the entire detachable kit, including the inner liner, filter frame, and spiral component, from the top of the solder housing. At this point, pull the inner liner outwards using the force support ring to disengage the mounting strip from the inside of the fixed frame, completing the removal of the inner liner. Then, remove the filter frame from above the inner liner. After removing it, pull the fixed block upwards, and flip the flip-up screens on both sides upwards. The support block will then flip them downwards to limit their movement, exposing the spiral grooves for easy removal and replacement of the activated carbon filter balls. Finally, flush the spiral channel.

[0016] This invention provides a fume purification structure for soldering machines. It has the following beneficial effects: 1. In this invention, after the flue gas enters the filter slot through the upper exhaust channel, it is forced to spiral upwards along the spiral component by the guiding effect of the hourglass-shaped spiral channel. This design significantly extends the flow path and residence time of the flue gas. Compared with the traditional straight-through filter element method, the spiral structure of this invention multiplies the contact area between the flue gas and the activated carbon filter balls, thereby achieving deep adsorption of flux volatiles, benzene compounds, and other organic waste gases and fine particulate matter, significantly improving the purification efficiency per pass.

[0017] 2. This invention employs a separate nested structure for the filter assembly, consisting of an inner liner, a filter frame, and a spiral component. Tool-free quick assembly and disassembly are achieved through mounting strips and a fixing frame. When the filter material needs replacement or cleaning, simply remove the protective shell, unscrew the external exhaust pipe and the flue gas limiting sleeve, and the entire filter core can be removed from the top of the soldered shell. The coordinated design of the load-bearing support ring and the flip-over mesh plate makes the tilting and replacement of activated carbon filter balls and the rinsing of the spiral channel intuitive and simple, reducing equipment downtime for maintenance and the difficulty of manual operation. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the mounting bracket mechanism of the present invention; Figure 3 This is a schematic diagram of the interior of the solder shell of the present invention; Figure 4 This is a schematic diagram of the protective housing mechanism of the present invention; Figure 5 This is a schematic diagram of the interior of the support ring of the present invention; Figure 6 This is a schematic diagram of the interior of the flue gas limiting sleeve of the present invention; Figure 7 This is a schematic diagram of the interior of the filter frame of the present invention; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram of the screw mechanism of the present invention.

[0019] The components include: 1. Workbench; 2. Support column; 3. Protective glass plate; 4. Top glass plate; 5. External exhaust trough; 6. Support block; 7. Adsorption tube; 8. Soldering station; 9. Front glass plate; 10. Mounting frame; 11. Electric slide rail; 12. Solder housing; 13. Protective housing; 14. External exhaust pipe; 15. Adsorption frame; 16. Solder head; 17. Connecting frame; 18. Fume limiting sleeve; 19. Connecting ring; 20. Assistive lever; 21. Mounting long trough; 22. Support ring. 23. Assist ring; 24. Connecting pipe; 25. Mounting block; 26. Air pump; 27. Upper drain channel; 28. Moving frame; 29. ​​Magnetic block; 30. Connecting sleeve; 31. Slider; 32. Compression spring; 33. Inner liner; 34. Force-bearing support ring; 35. Filter slot; 36. Fixing frame; 37. Filter frame; 38. Mounting strip; 39. Spiral component; 40. Bottom filter screen; 41. Flip screen; 42. Fixing block; 43. Outer handle; 44. Nested slot. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example: Please see the appendix Figures 1-9 This invention provides a fume purification structure for a soldering machine, including a workbench 1 for bottom support. Multiple vertically erected support columns 2 are fixedly connected to the top of the workbench 1. Protective glass plates 3 are fixedly connected to the inner sides of the support columns 2 to form physical barriers in all directions, preventing fume escape. A front glass plate 9 is fixedly connected to the upper inner side of the support column 2 at the front end for operator observation. A top glass plate 4 is fixedly connected to the top of the support column 2, thus forming a semi-enclosed soldering work space together with the protective glass plates 3. A soldering station 8 for supporting the workpiece to be processed is fixedly connected to the top center of the workbench 1. A mounting bracket 10 is fixedly connected to the top of the workbench 1. An electric slide rail 11 is fixedly connected to the front end of the mounting bracket 10. A moving frame 28 is slidably connected to the outside of the electric slide rail 11. A soldering shell 12 is slidably connected to the front end of the moving frame 28. A connecting bracket 17 is fixedly connected to the rear side of the bottom end of the soldering shell 12. A soldering head 16 is fixedly connected to the bottom end of the soldering shell 12. The outside of the soldering head 16 penetrates the bottom end of the connecting bracket 17. A fume extraction component is installed at the front end of the soldering shell 12 to realize the generation of solder by the soldering head 16. The solder housing 12 has an internal cavity on its upper side. A connecting ring 19 is fixedly connected to the bottom of the cavity. A smoke limiting sleeve 18 is threadedly connected to the inside of the connecting ring 19. Multiple lever plates 20 are fixedly connected to the top of the smoke limiting sleeve 18 to facilitate the installation and removal of the smoke limiting sleeve 18. A smoke exhaust assembly is installed at the top of the solder housing 12. A connecting pipe 24 is fixedly connected to the top of the smoke limiting sleeve 18. A detachable kit is installed inside the smoke limiting sleeve 18 to facilitate the replacement of the internal smoke filter material. A protective housing 13 is attached to the upper front side of the solder housing 12. Reference Figure 1 , Figure 3 , Figure 6 , Figure 7 and Figure 9The flue gas extraction assembly includes an adsorption tube 7 fixed at the center of the front end of the solder housing 12, an adsorption frame 15 fixedly connected to the front end of the connecting frame 17, a bottom end of the solder housing 12 fixedly connected to the front end of the adsorption frame 15, and a suction pump 26 fixedly connected to the front end of the solder housing 12 outside the adsorption tube 7. An upper exhaust groove 27 is provided inside the solder housing 12, and the upper end of the adsorption tube 7 penetrates into the upper exhaust groove 27. The detachable assembly includes multiple fixing frames 36 fixed around the inside of the flue gas limiting sleeve 18. An inner liner 33 is provided inside the flue gas limiting sleeve 18, and multiple mounting strips 38 are fixedly connected around the outside of the inner liner 33. The mounting strips 38 are nested inside the fixing frames 36, and anti-slip strips are fixed on both sides of the mounting strips 38. A filter frame 37 is nested inside the inner liner 33. The interior of the filter frame 37 is equipped with a spiral rising filter assembly to increase the contact area for flue gas filtration. The spiral rising filter assembly includes a filter slot 35 located inside the filter frame 37. A bottom filter screen 40 is fixedly connected inside the filter slot 35. A spiral component 39 is fixedly connected to the upper side of the filter slot 35. A flip screen plate 41 is rotatably connected to the upper part of both sides of the filter slot 35. A nesting slot 44 is opened on the inner side of the flip screen plate 41. A fixing block 42 is nested inside the nesting slot 44. An external lever handle 43 is fixedly connected to the top of the fixing block 42. The interior of the filter slot 35 is widened and narrowed from bottom to top to form an hourglass shape. The external dimensions of the spiral component 39 fit the cavity of the upper part of the filter slot 35 and are narrowed and widened from bottom to top. The spiral groove of the spiral component 39 is filled with activated carbon filter balls. During soldering, the solder head 16 above the soldering station 8 solders the workpiece, generating fumes containing flux volatiles and metal particles. The suction pump 26 starts and establishes negative pressure. The inlet of the adsorption frame 15 faces the working area of ​​the solder head 16, causing the fumes to be rapidly drawn into the adsorption tube 7 under negative pressure. The fumes then flow upwards through the upper exhaust channel 27 inside the solder housing 12, effectively preventing them from diffusing into the working environment. The extracted fumes enter the upper cavity of the solder housing 12 along the upper exhaust channel 27, where they are forced to change direction and converge under the guidance and constraint of the bottom connecting ring 19 and the fume limiting sleeve 18. They then pass upwards through the bottom opening of the fume limiting sleeve 18 and enter the filter slot 35 inside the filter frame 37. The cross-section of the filter slot 35 is an hourglass shape that narrows and then widens from bottom to top, matching the shape of the spiral component 39 to form a spiral channel. The flue gas is forced to spiral upwards within this spiral channel, significantly extending its flow path and thus increasing the contact time with the filter media. The spiral grooves of the spiral component 39 are filled with activated carbon filter balls. As the flue gas slowly rises along the spiral grooves, the organic waste gases it contains, such as flux rosin volatiles, benzene compounds, and fine particles, are fully adsorbed by the activated carbon. Due to the increased contact area caused by the spiral design, the purification efficiency per flow is significantly higher than that of traditional planar straight-through filter structures. Furthermore, the rear end of the solder housing 12 is connected to the moving frame 28 via an electric slide rail to ensure the vertical movement accuracy of the solder head 16.

[0022] Reference Figure 3 , Figure 4 , Figure 5 and Figure 8The flue gas exhaust assembly includes a support ring 22 fixed at the top of the solder housing 12. A connecting sleeve 30 is nested inside the support ring 22. Slider 31s are fixedly connected to both sides of the connecting sleeve 30. The outer sides of the sliders 31 are slidably connected to the inner side of the support ring 22. The top of the sliders 31 is connected to the inside of the support ring 22 via a compression spring 32. An external exhaust pipe 14 is rotatably connected inside the connecting sleeve 30. A lever ring 23 is fixedly connected to the upper outer side of the external exhaust pipe 14 to provide leverage for disassembling and installing the lever ring 23. The lower outer side of the external exhaust pipe 14 is threaded into the inside of the connecting pipe 24. Support blocks 6 are fixedly connected to the upper ends of both sides of the spiral component 39 to provide support for... The flip-down limit of the screen plate 41 is now set. The inner lower end of the inner liner 33 is fixedly connected to a force support ring 34 to support the bottom of the filter frame 37 and provide leverage when disassembling. The rear end of the protective shell 13 is fixedly connected to an installation block 25. The front sides of the solder shell 12 are provided with installation slots 21. The installation block 25 is nested into the upper side of the installation slot 21 and then slides down into the bottom of the installation slot 21. The bottom sides of the protective shell 13 are fixedly connected to magnetic blocks 29. The magnetic blocks 29 are magnetically attracted to the front of the top of the solder shell 12. The top of the top glass plate 4 is provided with an outer discharge slot 5. The outer top of the outer discharge pipe 14 is located inside the outer discharge slot 5. When the internal filter material needs to be replaced, the protective housing 13 can be lifted upwards through the grooves on both sides, allowing the mounting block 25 to move to the top of the mounting slot 21, thus removing the entire protective housing 13. Then, rotate the lever ring 23 to disengage the threaded connection between the external exhaust pipe 14 and the connecting pipe 24; next, rotate the flue gas limiting sleeve 18 using the lever lever 20 to remove the entire detachable assembly, including the inner liner 33, filter frame 37, and spiral component 39, from the top of the solder housing 12. Then, using the force-bearing support ring 34, pull the inner liner 33 outwards, disengaging the mounting strip 38 from the inside of the fixing frame 36, completing the removal of the inner liner 33. Finally, remove the filter frame 37 from above the inner liner 33. After removing the filter frame 37, pull out the fixing block 42 upwards to flip the flip-up screens 41 on both sides upwards. The support block 6 provides a downward limit for them, exposing the screw groove of the spiral component 39. This makes it easy to empty and replace the internal activated carbon filter balls, and also facilitates rinsing and cleaning the spiral channel. The water flow through the spiral structure generates an acceleration effect, thereby increasing the water flow rate and significantly speeding up the cleaning process.

[0023] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flue gas purification structure for a soldering machine, characterized in that, include: The workbench (1) is used for bottom support. Multiple support columns (2) are fixed at the top of the workbench (1). A protective glass plate (3) is fixedly connected to the inner side of the support column (2). A front glass plate (9) is fixedly connected to the upper inner side of the front support column (2). A top glass plate (4) is fixedly connected to the top of the support column (2). A soldering station (8) is fixedly connected to the middle of the top of the workbench (1). A mounting frame (10) is fixedly connected to the top of the workbench (1). An electric slide rail (11) is fixedly connected to the front end of the mounting frame (10). A movable frame (28) is slidably connected to the outside of the electric slide rail (11). A soldering shell (12) is slidably connected to the front end of the movable frame (28). A connecting frame (17) is fixedly connected to the rear side of the bottom end of the solder shell (12), and a solder head (16) is fixedly connected to the bottom end of the solder shell (12). The outside of the solder head (16) penetrates the bottom end of the connecting frame (17). A fume extraction component is installed at the front end of the solder shell (12) to achieve the adsorption of fumes generated by the soldering of the solder head (16). The solder housing (12) has a cavity on its upper interior side. A connecting ring (19) is fixedly connected to the bottom of the cavity. A smoke limiting sleeve (18) is threadedly connected to the inside of the connecting ring (19). Multiple lever plates (20) are fixedly connected to the top of the smoke limiting sleeve (18) to facilitate the installation and removal of the smoke limiting sleeve (18). A smoke exhaust assembly is installed at the top of the solder housing (12). A connecting pipe (24) is fixedly connected to the top of the smoke limiting sleeve (18). A detachable kit is installed inside the smoke limiting sleeve (18) to facilitate the replacement of the internal smoke filter material. A protective housing (13) is attached to the upper front side of the solder housing (12).

2. The flue gas purification structure for a soldering machine according to claim 1, characterized in that, The flue gas extraction assembly includes an adsorption tube (7) fixed at the middle of the front end of the solder housing (12), an adsorption frame (15) fixedly connected to the front end of the connecting frame (17), the bottom end of the solder housing (12) fixedly connected to the front end of the adsorption frame (15), a vacuum pump (26) fixedly connected to the front end of the solder housing (12) outside the adsorption tube (7), and an upper through groove (27) opened inside the solder housing (12), with the upper end of the adsorption tube (7) penetrating into the interior of the upper through groove (27).

3. The flue gas purification structure for a soldering machine according to claim 1, characterized in that, The flue gas exhaust assembly includes a support ring (22) fixed at the top of the solder housing (12). A connecting sleeve (30) is nested inside the support ring (22). A slider (31) is fixedly connected to both sides of the connecting sleeve (30). The outside of the slider (31) is slidably connected to the inside of the support ring (22). The top of the slider (31) is connected to the inside of the support ring (22) through a compression spring (32). An external exhaust pipe (14) is rotatably connected inside the connecting sleeve (30). A lever ring (23) is fixedly connected to the upper outside of the external exhaust pipe (14) to enable lever ring (23) to be disassembled and installed. The lower outside of the external exhaust pipe (14) is threaded to the inside of the connecting pipe (24).

4. The fume purification structure for a soldering machine according to claim 1, characterized in that, The detachable kit includes multiple fixing frames (36) fixed around the inside of the flue gas limiting sleeve (18). An inner liner (33) is provided on the inner side of the flue gas limiting sleeve (18). Multiple mounting strips (38) are fixedly connected around the outside of the inner liner (33). The outer side of the mounting strips (38) is nested inside the fixing frames (36). Anti-slip strips are fixed on both sides of the mounting strips (38). A filter frame (37) is nested inside the inner liner (33). A spiral rising filter assembly is installed inside the filter frame (37) to increase the contact area for flue gas filtration.

5. The flue gas purification structure for a soldering machine according to claim 4, characterized in that, The spiral rising filter assembly includes a filter slot (35) located inside the filter frame (37). A bottom filter screen (40) is fixedly connected inside the filter slot (35). A spiral component (39) is fixedly connected to the upper side inside the filter slot (35). A flip screen plate (41) is rotatably connected to the upper part of both sides of the filter slot (35). A nesting slot (44) is opened on the inner side of the flip screen plate (41). A fixing block (42) is nested inside the nesting slot (44). An external lever handle (43) is fixedly connected to the top of the fixing block (42).

6. The flue gas purification structure for a soldering machine according to claim 5, characterized in that, The interior of the filter groove (35) is widened and narrowed from bottom to top to form an hourglass shape. The external dimensions of the spiral component (39) match the cavity of the upper part of the filter groove (35) and are widened from bottom to top. The spiral groove of the spiral component (39) is filled with activated carbon filter balls.

7. The flue gas purification structure for a soldering machine according to claim 5, characterized in that, Both sides of the spiral component (39) are fixedly connected to support blocks (6) to limit the downward flipping of the flipped mesh plate (41).

8. The flue gas purification structure for a soldering machine according to claim 4, characterized in that, The inner lower end of the inner liner (33) is fixedly connected to a force-bearing support ring (34) to support the bottom of the filter frame (37) and provide leverage when disassembling it.

9. The fume purification structure for a soldering machine according to claim 1, characterized in that, The protective housing (13) is fixedly connected to the rear end of the mounting block (25). The front end of the solder housing (12) is provided with mounting slots (21) on both sides. The mounting block (25) is nested into the upper side of the mounting slot (21) and then slides down into the bottom of the mounting slot (21). The bottom end of the protective housing (13) is fixedly connected to magnetic blocks (29). The magnetic blocks (29) are magnetically attracted to the front of the top of the solder housing (12).

10. The flue gas purification structure for a soldering machine according to claim 3, characterized in that, The top of the top glass plate (4) is provided with an outer drainage groove (5), and the outer top of the outer drainage pipe (14) is located inside the outer drainage groove (5).

Images