Fluorine plastic pipe table top welding equipment with waste gas purification function

Abstract

The invention relates to the technical field of fluoroplastic pipe welding, and discloses fluoroplastic pipe table top welding equipment with a waste gas purification function, which comprises an equipment main body, the equipment main body comprises a fluoroplastic pipe fixing mechanism for fixedly clamping a fluoroplastic pipe; the limiting connecting mechanism is used for limiting the fluorine plastic pipe; the adjusting mechanism is used for conducting motion welding on the position of the fluorine plastic pipe fixing mechanism; the fine adjustment mechanism is used for performing fine adjustment on the fluorine plastic pipe fixing mechanism; the heating mechanism is used for heating the fluorine plastic pipe; and the waste gas purification mechanism is used for purifying waste gas generated by heating and welding the fluorine plastic pipe. Through the multi-layer filter element design (activated carbon and PP cotton) of the waste gas purification mechanism, fluorine-containing harmful gas (such as HF and PFOA) generated during welding can be efficiently adsorbed, and the purification efficiency reaches 95% or above; and the waste gas cover and the back suction fan cooperate to collect and treat the waste gas in the welding area in real time.

Description

Technical Field

[0001] The invention relates to the field of fluoroplastic pipe welding, in particular to a fluoroplastic pipe desktop welding device with waste gas purification. Background Art

[0002] Fluoroplastic tubes (such as PTFE and PFA tubes) are widely used in chemical, medical, semiconductor and other industries due to their corrosion resistance and high temperature resistance. At present, the welding of fluoroplastic tubes mainly adopts hot air welding or heating plate welding, but there are the following problems:

[0003] Waste gas pollution: Fluorine-containing waste gas (such as HF, PFOA, etc.) released during welding is harmful to the human body and the environment, but the existing small welding equipment lacks efficient purification function.

[0004] Insufficient precision: Manual welding can easily lead to pipe alignment deviation, affecting the sealing performance; the adjustment mechanism of existing equipment mostly relies on manual operation, which makes it difficult to achieve fine-tuning.

[0005] Based on this, we proposed a fluoroplastic pipe desktop welding equipment with exhaust gas purification. Summary of the invention

[0006] In order to solve the technical problems of waste gas pollution and insufficient adjustment accuracy, the present invention provides a fluoroplastic pipe desktop welding device with waste gas purification.

[0007] The present invention is implemented by the following technical scheme: a fluoroplastic tube desktop welding device with exhaust gas purification, comprising an equipment body, the equipment body comprising: a fluoroplastic tube fixing mechanism for fixing and clamping the fluoroplastic tube; a limiting connection mechanism for limiting the position of the fluoroplastic tube; an adjusting mechanism for moving the position of the fluoroplastic tube fixing mechanism for welding; a heating mechanism for heating the fluoroplastic tube; an exhaust gas purification mechanism for purifying the exhaust gas generated by heating and welding the fluoroplastic tube;

[0008] Wherein, the fluoroplastic tube fixing mechanism comprises a connecting base, and an adjusting fixing seat is installed above the connecting base;

[0009] The moving frame and the adjusting fixed seat are hinged through the adjusting axis; the bottom end of the moving frame is connected with a movable axis, the handle passes through the bottom end of the moving frame and is hinged through the movable axis, and the bottom end of the handle is installed on the connecting axis seat and is hinged through the deflection axis;

[0010] The limit connection mechanism comprises a rotating shaft, which is mounted on a connection base, and a limit connection plate is connected to the outer side of the rotating shaft.

[0011] The staff first puts the fluoroplastic tube into the cavity formed by the connecting base and the adjusting fixing seat in the fixing mechanism, drives the moving frame to rotate around the adjusting axis through the handle, and cooperates with the movable axis and the deflection axis to realize flexible adjustment of the clamping angle, locks the connecting base and the adjusting fixing seat, and realizes fixed clamping of the fluoroplastic tube.

[0012] The regulatory agencies include:

[0013] A working motor, which is installed on the bottom surface of the equipment table; a rotating screw, which is connected to the output end of the working motor; a positioning seat, the top end of the rotating screw passes through the positioning seat; a moving block, which is sleeved on the surface of the rotating screw; a moving frame, which is fixedly connected to the top end of the moving block; a movable block, which is installed on the top end of the moving frame; and a sliding rod, which is slidably connected to the surface of the sliding rod.

[0014] It also includes a fine-tuning mechanism for fine-tuning the fluoroplastic tube fixing mechanism; the fine-tuning mechanism includes an adjusting knob, the top end of the adjusting knob is connected to one end of an adjusting rod, the other end of the adjusting rod is connected to a rotating gear, and the bottom end of the rotating gear is meshed with a connecting rack;

[0015] The surface of the sliding rod is overlapped with a moving roller, the surface of the sliding rod is slidably connected with a sliding block, the fine-tuning component plate is sleeved on the surface of the sliding block, and the fine-tuning component plate drives the sliding block to slide on the surface of the sliding rod.

[0016] The heating mechanism includes: a driving motor, which is installed on the bottom surface of the equipment table; a first rotating disk, which is connected to the output end of the driving motor; a connecting chain, one end of which is sleeved on the surface of the first rotating disk; a second rotating disk, which is sleeved on the surface of the connecting chain; a connecting screw, which is connected to the inner side of the second rotating disk; a connecting block, which is sleeved on the surface of the connecting screw; a fixing frame, which is fixedly installed above the connecting block; a heating plate, which is installed on the top of the fixing frame; a heating rod, which is arranged inside the heating plate; a sliding kit, which is installed above the connecting block; and a sliding frame, which is slidably connected to the surface of the sliding frame.

[0017] The exhaust gas purification mechanism includes an exhaust gas hood, which is located directly above the heating plate, covers the welding area, and collects the exhaust gas;

[0018] The outer side of the exhaust hood is connected to a hinge rotating shaft, and the other side of the hinge rotating shaft is connected to a purification shell; a return suction fan is installed on the inner side of the exhaust hood, the outer side of the return suction fan is connected to one end of a return suction pipe, the other end of the return suction pipe is connected to a purification bin, the bottom end of the purification bin is connected to a rotating fan, the outer side of the rotating fan is connected to one end of a guide pipe, and the other end of the guide pipe is connected to a gas outlet.

[0019] As a further optimization scheme of the present invention, by controlling the working motor to work, the working motor drives the rotating screw to rotate, the rotating screw drives the moving block to move, the moving block drives the moving frame and the movable block to move linearly along the sliding rod, and the fluoroplastic tube fixing mechanism installed above the movable block moves to help the two sets of fluoroplastic tube fixing mechanisms to dock, thereby facilitating the subsequent fluoroplastic tube welding operations.

[0020] As a further optimization scheme of the present invention, four fluoroplastic tube fixing mechanisms are provided, wherein every two fluoroplastic tube fixing mechanisms constitute a group, the group of fluoroplastic tube fixing mechanisms on the left side is adjusted by a fine-tuning mechanism; the group of fluoroplastic tube fixing mechanisms on the right side moves by an adjusting mechanism.

[0021] As a further optimization scheme of the present invention, the rotating shaft drives the limiting connecting plate to rotate, thereby limiting the axial displacement of the pipe and ensuring that the welding end faces are completely aligned.

[0022] As a further optimization scheme of the present invention, the adjusting knob is rotated, the adjusting knob drives the adjusting rod to rotate, the adjusting rod drives the rotating gear to transmit on the rack, the adjusting rod drives the sliding block to move slightly under the action of the moving roller, so as to realize fine adjustment of the welding position.

[0023] As a further optimization scheme of the present invention, the connecting block drives the fixing frame to move, so that the heating plate moves to the welding position, and the heating rod heats the heating plate to a set temperature (usually 200-400°C), melts the end face of the pipe, and completes the welding by pressure.

[0024] As a further optimization solution of the present invention, the exhaust hood covers the welding area, and the re-suction fan draws the fluorine-containing exhaust gas into the re-suction pipe.

[0025] As a further optimization scheme of the present invention, the exhaust gas enters the purification chamber, passes through the PP cotton layer (to intercept particulate matter) and the activated carbon layer (to adsorb harmful gases such as HF and PFOA) in turn, to purify the exhaust gas, and the purified gas is discharged from the gas outlet through the diversion pipe, which meets environmental protection standards.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. The present invention can efficiently adsorb fluorine-containing harmful gases (such as HF, PFOA, etc.) generated during welding through the multi-layer filter element design (activated carbon + PP cotton) of the exhaust gas purification mechanism, with a purification efficiency of more than 95%, avoiding pollution to operators and the environment.

[0028] 2. The synergistic effect of the exhaust hood and the return suction fan of the present invention realizes the real-time collection and treatment of exhaust gas in the welding area, ensuring that the air quality in the workplace meets environmental protection standards.

[0029] 3. The present invention realizes fine adjustment through a fine adjustment mechanism in conjunction with an adjusting knob, thereby ensuring complete alignment of the welding end faces of the fluoroplastic tube and significantly improving the sealing of the weld.

[0030] 4. The adjusting mechanism of the present invention works in coordination with the limiting connection mechanism to achieve precise control of the welding position through the linear movement of the sliding rod and the moving block, thereby avoiding the deviation problem of traditional manual welding.

[0031] 5. The present invention supports dual-tube synchronous welding through the design of four sets of fluoroplastic tube fixing mechanisms, which improves the efficiency by more than 200% compared with single-station equipment.

[0032] 6. The left fixing mechanism of the present invention is finely adjusted by a fine-tuning mechanism, and the right side is quickly displaced by an adjusting mechanism to meet the welding requirements of different pipe diameters.

[0033] 7. The present invention adopts a driving motor and a chain belt transmission through the heating mechanism to drive the heating plate to move accurately to the welding position, and the temperature is set (200-400°C) to ensure uniform melting and avoid overheating or loose welding.

[0034] 8. The filter element of the purification chamber of the present invention can be replaced regularly, which is low in cost and more economical and practical than large-scale waste gas treatment systems. The equipment has low energy consumption, is suitable for long-term continuous operation, and reduces production costs.

[0035] 9. The present invention solves the problems of waste gas pollution, insufficient precision and low efficiency existing in traditional fluoroplastic pipe welding equipment through integrated waste gas purification, high-precision adjustment and multi-station collaborative design, and has significant technical progress and practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0037] Figure 2 For the present invention Figure 1 Schematic diagram of the structural cross section of the middle part;

[0038] Figure 3 This is a schematic diagram of the connection structure of the adjustment mechanism of the present invention;

[0039] Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0040] Figure 5 This is a schematic diagram of the connection structure of the fine-tuning mechanism of the present invention;

[0041] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure of the middle B region;

[0042] Figure 7This is a schematic diagram of the position connection relationship of the heating mechanism of the present invention;

[0043] Figure 8 It is a schematic diagram of the overall structure of the heating mechanism of the present invention;

[0044] Fig. 9 For the present invention Figure 8 Schematic diagram of the middle heating mechanism from the second perspective.

[0045] Description of main symbols:

[0046] 1. The whole equipment; 2. Fluoroplastic tube fixing mechanism; 21. Connecting base; 22. Adjusting fixing seat; 23. Moving frame; 24. Movable axis; 25. Handle; 26. Adjusting axis; 27. Deflecting axis; 3. Fluoroplastic tube;

[0047] 4. Limiting connection mechanism; 41. Rotation axis; 42. Limiting connection plate;

[0048] 5. Adjustment mechanism; 51. Working motor; 52. Rotating screw; 53. Positioning seat; 54. Moving block; 55. Moving frame; 56. Movable block; 57. Sliding rod;

[0049] 6. Fine-tuning mechanism; 61. Adjusting knob; 62. Adjusting rod; 63. Rotating gear; 64. Connecting rack; 65. Moving roller; 66. Sliding block; 67. Fine-tuning assembly plate;

[0050] 7. Heating mechanism; 71. Driving motor; 72. First rotating disk; 73. Connecting chain belt; 74. Second rotating disk; 75. Connecting screw rod; 76. Connecting block; 77. Fixing frame; 78. Heating plate; 79. Heating rod; 710. Sliding kit; 711. Sliding frame;

[0051] 8. Exhaust gas purification mechanism; 81. Exhaust gas hood; 82. Hinge rotating shaft; 83. Purification shell; 84. Back-suction fan; 85. Back-suction duct; 86. Purification chamber; 87. Rotating fan; 88. Diversion duct; 89. Gas outlet; 9. Knob; 10. Start / stop knob; 11. Equipment table. DETAILED DESCRIPTION

[0052] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0053] Embodiment 1:

[0054] Please combine Figure 1 as well as Figure 4This embodiment proposes a fluoroplastic tube desktop welding device with exhaust gas purification, including a device body 1, the device body 1 includes: a fluoroplastic tube fixing mechanism 2, used for fixing and clamping the fluoroplastic tube 3; a limiting connection mechanism 4, used for limiting the fluoroplastic tube 3; an adjustment mechanism 5, used for moving the position of the fluoroplastic tube fixing mechanism 2 for welding; a fine-tuning mechanism 6, used for fine-tuning the fluoroplastic tube fixing mechanism 2; a heating mechanism 7, used for heating the fluoroplastic tube 3; an exhaust gas purification mechanism 8, used for purifying the exhaust gas generated by heating and welding the fluoroplastic tube 3;

[0055] The fluoroplastic tube fixing mechanism 2 includes a connecting base 21, and an adjusting fixing base 22 is installed above the connecting base 21;

[0056] The moving frame 23 and the adjusting fixed seat 22 are hinged through the adjusting axis 26; the bottom end of the moving frame 23 is connected with the movable axis 24, the handle 25 passes through the bottom end of the moving frame 23 and is hinged through the movable axis 24, and the bottom end of the handle 25 is installed on the connecting shaft seat 21 and is hinged through the deflection axis 27;

[0057] The position-limiting connection mechanism 4 comprises a rotation axis 41 . The rotation axis 41 is mounted on the connection base 21 . The outer side of the rotation axis 41 is connected to a position-limiting connection plate 42 .

[0058] Furthermore, the rotating shaft 41 drives the limiting connecting plate 42 to rotate, thereby limiting the axial displacement of the pipe and ensuring that the welding end faces are completely aligned.

[0059] It should be noted that there are four fluoroplastic tube fixing mechanisms 2, wherein every two fluoroplastic tube fixing mechanisms 2 form a group, the group of fluoroplastic tube fixing mechanisms 2 located on the left side is adjusted by the fine-tuning mechanism 6; the group of fluoroplastic tube fixing mechanisms 2 located on the right side is moved by the adjusting mechanism 5.

[0060] Specifically, the staff first puts the fluoroplastic tube 3 into the cavity formed by the connecting base 21 and the adjusting fixing seat 22 in the fixing mechanism 2, drives the moving frame 23 to rotate around the adjusting axis 26 through the handle 25, cooperates with the movable axis 24 and the deflection axis 27 to realize flexible adjustment of the clamping angle, locks the connecting base 21 and the adjusting fixing seat 22, and realizes the fixed clamping of the fluoroplastic tube 3.

[0061] Embodiment 2:

[0062] Please combine Figure 3 , Embodiment 2 further proposes an adjustment mechanism 5, which adjusts the fluoroplastic tube fixing mechanism 2 in Embodiment 1 to facilitate welding;

[0063] The regulating mechanism 5 comprises:

[0064] A working motor 51, which is installed on the bottom surface of the equipment table 11; a rotating screw 52, ​​which is connected to the output end of the working motor 51; a positioning seat 53, the top end of the rotating screw 52 passes through the positioning seat 53; a moving block 54, which is sleeved on the surface of the rotating screw 52; a moving frame 55, which is fixedly connected to the top end of the moving block 54; a movable block 56, which is installed on the top end of the moving frame 55; a sliding rod 57, which is slidably connected to the surface of the sliding rod 57.

[0065] Specifically, when welding is required, the left group of the two groups of fluoroplastic tube fixing mechanisms 2 during welding is fixed, and the fluoroplastic tube fixing mechanism 2 on the right side moves. The thickness of the two groups of fluoroplastic tubes 3 fixed in the fluoroplastic tube fixing mechanisms 2 on both sides can be the same or different; by controlling the working motor 51 to work, the working motor 51 drives the rotating screw 52 to rotate, and the rotating screw 52 drives the moving block 54 to move, and the moving block 54 drives the moving frame 55 and the movable block 56 to move linearly along the sliding rod 57, and the fluoroplastic tube fixing mechanism 2 installed above the movable block 56 moves to help the two groups of fluoroplastic tube fixing mechanisms 2 to dock, so as to facilitate the subsequent welding operation of the fluoroplastic tubes 3.

[0066] Embodiment 3:

[0067] Please combine Figure 5-Figure 6 , Embodiment 3 further proposes a fine-tuning mechanism 6, which fine-tunes the fluoroplastic tube fixing mechanism 2 in Embodiment 1, and cooperates with the adjusting mechanism 5 in Embodiment 2 to perform a more precise welding operation;

[0068] The fine-tuning mechanism 6 includes an adjusting knob 61, the top end of which is connected to one end of an adjusting rod 62, the other end of which is connected to a rotating gear 63, and the bottom end of which is meshed with a connecting rack 64;

[0069] The surface of the sliding rod 57 is overlapped with a moving roller 65, and the surface of the sliding rod 57 is slidably connected with a sliding block 66. The fine-tuning component plate 67 is sleeved on the surface of the sliding block 66, and the fine-tuning component plate 67 drives the sliding block 66 to slide on the surface of the sliding rod 57.

[0070] Specifically, the adjusting knob 61 is rotated, the adjusting knob 61 drives the adjusting rod 62 to rotate, the adjusting rod 62 drives the rotating gear 63 to transmit on the rack 64, the adjusting rod 62 drives the sliding block 66 to move slightly under the action of the moving roller 65, so as to achieve fine adjustment of the welding position.

[0071] Embodiment 4:

[0072] Please combine Figure 7-Figure 9, Embodiment 4 further proposes a heating mechanism 7 to achieve heating and welding of the fluoroplastic tube 3 fixed by the fluoroplastic tube fixing mechanism 2 in Embodiment 1;

[0073] The heating mechanism 7 comprises:

[0074] Driving motor 71, driving motor 71 is installed on the bottom surface of equipment platform 11; first rotating disk 72, first rotating disk 72 is connected to the output end of driving motor 71; connecting chain belt 73, one end of connecting chain belt 73 is sleeved on the surface of first rotating disk 72; second rotating disk 74, second rotating disk 74 is sleeved on the surface of connecting chain belt 73; connecting screw 75, connecting screw 75 is connected to the inner side of second rotating disk 74; connecting block 76, connecting block 76 is sleeved on the surface of connecting screw 75; fixing frame 77, fixing frame 77 is fixedly installed above connecting block 76; heating plate 78, heating plate 78 is installed on the top of fixing frame 77; heating rod 79, heating rod 79 is arranged inside heating plate 78; sliding kit 710, sliding kit 710 is installed above connecting block 76; sliding frame 711, sliding kit 710 is slidably engaged on the surface of sliding frame 711.

[0075] Specifically, after the two groups of fluoroplastic tubes 3 are docked, the driving motor 71 works, and the driving motor 71 drives the first rotating disk 72 connected thereto to rotate. The first rotating disk 72 controls the connecting chain belt 73 to drive the second rotating disk 74 to rotate. The second rotating disk 74 drives the connecting screw 75 to rotate, and the connecting screw 75 drives the connecting block 76 to move. The connecting block 76 thereby drives the fixed frame 77 to move, and the sliding kits 710 connected on both sides of the connecting block 76 slide on the sliding frame 711, and the connecting block 76 drives the fixed frame 77 to move, so that the heating plate 78 moves to the welding position, and the heating rod 79 heats the heating plate 78 to the set temperature (usually 200-400°C). After melting the end face of the pipe, the welding is completed by pressure.

[0076] Embodiment 5:

[0077] Please combine Figure 2 , Embodiment 5 further proposes an exhaust gas purification mechanism 8 to achieve exhaust gas collection and purification;

[0078] The exhaust gas purification mechanism 8 includes an exhaust gas cover 81, which is located directly above the heating plate 78, covers the welding area, and collects the exhaust gas;

[0079] The outer side of the exhaust hood 81 is connected to a hinge rotating shaft 82, and the other side of the hinge rotating shaft 82 is connected to a purification housing 83;

[0080] A return suction fan 84 is installed on the inner side of the exhaust hood 81, and the outer side of the return suction fan 84 is connected to one end of a return suction pipe 85, and the other end of the return suction pipe 85 is connected to a purification chamber 86. The bottom end of the purification chamber 86 is connected to a rotating fan 87, and the outer side of the rotating fan 87 is connected to one end of a guide pipe 87, and the other end of the guide pipe 87 is connected to a gas outlet 89.

[0081] Waste gas collection: The waste gas hood 81 covers the welding area, and the back-suction fan 84 sucks the fluorine-containing waste gas into the back-suction pipe 85.

[0082] Purification treatment: The waste gas enters the purification chamber 86, and passes through the PP cotton layer (to intercept particulate matter) and the activated carbon layer (to adsorb harmful gases such as HF and PFOA) in turn to purify the waste gas.

[0083] Clean emission: The purified gas is discharged from the gas outlet 89 through the guide pipe 88, which meets the environmental protection standards.

[0084] The specific implementation steps of the overall technical solution of the present invention are as follows:

[0085] 1. Fixing and limiting of fluoroplastic tubes

[0086] The staff first puts the fluoroplastic tube 3 into the cavity formed by the connecting base 21 and the adjusting fixing base 22 in the fixing mechanism 2, drives the moving frame 23 to rotate around the adjusting axis 26 through the grip 25, cooperates with the movable axis 24 and the deflection axis 27 to realize the flexible adjustment of the clamping angle, locks the connecting base 21 and the adjusting fixing base 22, and realizes the fixed clamping of the fluoroplastic tube 3;

[0087] Limiting mechanism 4: The rotating shaft 41 drives the limiting connecting plate 42 to rotate, limiting the axial displacement of the pipe and ensuring that the welding end faces are completely aligned.

[0088] 2. Adjustment and fine-tuning

[0089] Adjustment mechanism 5: When welding is required, the left group of the two groups of fluoroplastic tube fixing mechanisms 2 is fixed during welding, and the fluoroplastic tube fixing mechanism 2 on the right side moves. The thickness of the two groups of fluoroplastic tubes 3 fixed in the fluoroplastic tube fixing mechanisms 2 on both sides can be the same or different; by controlling the working motor 51 to work, the working motor 51 drives the rotating screw 52 to rotate, and the rotating screw 52 drives the moving block 54 to move, and the moving block 54 drives the moving frame 55 and the movable block 56 to move linearly along the sliding rod 57, and the fluoroplastic tube fixing mechanism 2 installed above the movable block 56 moves, which helps the two groups of fluoroplastic tube fixing mechanisms 2 to dock, so as to facilitate the subsequent welding operation of the fluoroplastic tube 3;

[0090] Fine-tuning mechanism 6: Rotate the adjusting knob 61, the adjusting knob 61 drives the adjusting rod 62 to rotate, the adjusting rod 62 drives the rotating gear 63 to transmit on the rack 64, the adjusting rod 62 drives the sliding block 66 to move slightly under the action of the moving roller 65, so as to achieve fine adjustment of the welding position.

[0091] 3. Heating and welding

[0092] After the two groups of fluoroplastic tubes 3 are docked, the driving motor 71 works, and the driving motor 71 drives the first rotating disk 72 connected thereto to rotate. The first rotating disk 72 controls the connecting chain belt 73 to drive the second rotating disk 74 to rotate. The second rotating disk 74 drives the connecting screw 75 to rotate, and the connecting screw 75 drives the connecting block 76 to move. The connecting block 76 thereby drives the fixed frame 77 to move, and the sliding kits 710 connected on both sides of the connecting block 76 slide on the sliding frame 711, and the connecting block 76 drives the fixed frame 77 to move, so that the heating plate 78 moves to the welding position, and the heating rod 79 heats the heating plate 78 to the set temperature (usually 200-400°C). After melting the end face of the pipe, the welding is completed by pressure.

[0093] 4. Waste gas purification

[0094] Waste gas collection: The waste gas hood 81 covers the welding area, and the back-suction fan 84 sucks the fluorine-containing waste gas into the back-suction pipe 85.

[0095] Purification treatment: The waste gas enters the purification chamber 86 and passes through the PP cotton layer (to intercept particulate matter) and the activated carbon layer (to adsorb harmful gases such as HF and PFOA) in turn.

[0096] Clean emission: The purified gas is discharged from the gas outlet 89 through the guide pipe 88, which meets the environmental protection standards.

[0097] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A fluoroplastic pipe desktop welding device with exhaust gas purification, comprising a device body (1), characterized in that: The device body (1) comprises: A fluoroplastic tube fixing mechanism (2) is used to fix and clamp the fluoroplastic tube (3); A limiting connection mechanism (4) is used to limit the position of the fluoroplastic tube (3); An adjusting mechanism (5) for moving and welding the position of the fluoroplastic tube fixing mechanism (2); A heating mechanism (7) for heating the fluoroplastic tube (3); An exhaust gas purification mechanism (8) is used to purify the exhaust gas generated by heating and welding the fluoroplastic tube (3); Wherein, the fluoroplastic tube fixing mechanism (2) comprises a connecting base (21), and an adjusting fixing base (22) is installed above the connecting base (21); The moving frame (23) and the adjusting fixed seat (22) are hingedly connected via an adjusting axis (26); the bottom end of the moving frame (23) is connected with a movable axis (24); the handle (25) passes through the bottom end of the moving frame (23) and is hingedly connected via the movable axis (24); the bottom end of the handle (25) is mounted on the connecting shaft seat (21) and is hingedly connected via a deflection axis (27); The position-limiting connection mechanism (4) comprises a rotating shaft (41), the rotating shaft (41) is mounted on the connection base (21), and the outer side of the rotating shaft (41) is connected to a position-limiting connection plate (42).

2. A fluoroplastic pipe desktop welding device with exhaust gas purification as claimed in claim 1, characterized in that: Four fluoroplastic tube fixing mechanisms (2) are provided, wherein every two fluoroplastic tube fixing mechanisms (2) form a group, and the group of fluoroplastic tube fixing mechanisms (2) located on the left side is adjusted by a fine adjustment mechanism (6); and the group of fluoroplastic tube fixing mechanisms (2) located on the right side is moved by an adjustment mechanism (5).

3. A fluoroplastic pipe desktop welding device with exhaust gas purification as claimed in claim 1, characterized in that: The regulating mechanism (5) comprises: A working motor (51), wherein the working motor (51) is mounted on the bottom surface of the equipment platform (11); A rotating screw (52), wherein the rotating screw (52) is connected to an output end of the working motor (51); A positioning seat (53), wherein the top end of the rotating screw (52) passes through the positioning seat (53); A moving block (54), wherein the moving block (54) is sleeved on the surface of the rotating screw (52); A moving frame (55), the moving frame (55) is fixedly connected to the top of the moving block (54); A movable block (56), the movable block (56) being mounted on the top of the movable frame (55); A sliding rod (57), the movable block (56) is slidably connected to the surface of the sliding rod (57).

4. A fluoroplastic pipe desktop welding device with exhaust gas purification as claimed in claim 3, characterized in that: It also includes a fine-tuning mechanism (6) for fine-tuning the fluoroplastic tube fixing mechanism (2); The fine adjustment mechanism (6) comprises an adjusting knob (61), the top end of the adjusting knob (61) is connected to one end of an adjusting rod (62), the other end of the adjusting rod (62) is connected to a rotating gear (63), and the bottom end of the rotating gear (63) is meshed with a connecting rack (64); The surface of the sliding rod (57) is overlapped with a moving roller (65), the surface of the sliding rod (57) is slidably connected with a sliding block (66), the fine-tuning component plate (67) is sleeved on the surface of the sliding block (66), and the fine-tuning component plate (67) drives the sliding block (66) to slide on the surface of the sliding rod (57).

5. A fluoroplastic pipe desktop welding device with exhaust gas purification as claimed in claim 3, characterized in that: The heating mechanism (7) comprises: A driving motor (71), wherein the driving motor (71) is mounted on the bottom surface of the equipment platform (11); A first rotating disk (72), the first rotating disk (72) being connected to an output end of the driving motor (71); A connecting chain belt (73), one end of which is sleeved on the surface of the first rotating disk (72); A second rotating disk (74), wherein the second rotating disk (74) is sleeved on the surface of the connecting chain belt (73); a connecting screw (75), wherein the connecting screw (75) is connected to the inner side of the second rotating disk (74); A connecting block (76), wherein the connecting block (76) is sleeved on the surface of the connecting screw (75); A fixing frame (77), wherein the fixing frame (77) is fixedly mounted above the connecting block (76); A heating plate (78), wherein the heating plate (78) is mounted on the top of the fixing frame (77); A heating rod (79), wherein the heating rod (79) is arranged inside the heating plate (78); A sliding kit (710), wherein the sliding kit (710) is installed above the connecting block (76); A sliding frame (711), wherein the sliding kit (710) is slidably engaged with a surface of the sliding frame (711).

6. A fluoroplastic pipe desktop welding device with exhaust gas purification as claimed in claim 5, characterized in that: The exhaust gas purification mechanism (8) comprises an exhaust gas cover (81), wherein the exhaust gas cover (81) is located directly above the heating plate (78), covers the welding area, and collects the exhaust gas; The outer side of the exhaust hood (81) is connected to a hinged rotating shaft (82), and the other side of the hinged rotating shaft (82) is connected to a purification housing (83); A return suction fan (84) is installed on the inner side of the exhaust hood (81), the outer side of the return suction fan (84) is connected to one end of a return suction pipe (85), the other end of the return suction pipe (85) is connected to a purification chamber (86), the bottom end of the purification chamber (86) is connected to a rotating fan (87), the outer side of the rotating fan (87) is connected to one end of a guide pipe (87), and the other end of the guide pipe (87) is connected to a gas outlet (89).

7. A fluoroplastic pipe desktop welding device with exhaust gas purification as claimed in claim 1, characterized in that: The surface of the device body (1) is provided with a knob (9) for controlling the operation of the regulating mechanism (5) and the heating mechanism (7), and a start / stop knob (10) for starting and stopping the operation of the device body (1).

8. A fluoroplastic pipe desktop welding device with exhaust gas purification as claimed in claim 6, characterized in that: The purification chamber (86) is provided with activated carbon and PP cotton inside.

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