Automatic wire feeding electric soldering iron

Abstract

The invention relates to the technical field of electric soldering irons, and discloses an automatic wire feeding electric soldering iron which comprises a shell, an inner sliding frame and two symmetrically-arranged holding plates are installed on the inner wall of the shell in a sliding mode, a reset spring for elastically limiting the inner sliding frame is arranged in the shell, and a connecting arm is hinged between each holding plate and the inner sliding frame. An ironing rod is rotatably installed on the inner sliding frame, the ironing rod is rotatably sleeved with a smoke exhaust rotary pipe, the ironing rod and the smoke exhaust rotary pipe are in reverse linkage, a rotary smoke exhaust assembly is arranged on the smoke exhaust rotary pipe, a guide shaft is rotatably installed on the inner wall of the shell, the ironing rod is driven through the guide shaft, an inner conical tooth is arranged on the guide shaft, a rotary wheel is rotatably installed on one holding plate, and a motor is installed on the other holding plate. When the electric soldering iron is used, on one hand, holding plate driving type automatic wire feeding operation of a welding wire can be achieved, on the other hand, during wire feeding, pre-softening of the welding wire can be achieved, and therefore the wire feeding fluency and smoothness of the electric soldering iron are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of soldering irons, and more specifically, the present invention relates to an automatic wire-feeding soldering iron. Background Art

[0002] Soldering irons are widely used in the electronic repair industry and are essential tools for electronic production and electrical appliance repair, mainly for connecting and fixing electronic components.

[0003] In the prior art, a patent document with the publication number CN109794663B discloses an automatic wire-feeding soldering iron, which includes a solder wire storage mechanism, a solder wire transmission mechanism, a solder wire position adjustment mechanism, and a soldering iron tip. The solder wire storage mechanism is installed at the rear of the solder wire transmission mechanism, the soldering iron tip is installed at the front of the solder wire transmission mechanism, and the solder wire position adjustment mechanism is installed at the upper end of the front part of the solder wire transmission mechanism. The solder wire position adjustment mechanism includes a first button, a right-angle rack, a swinging head, and a fifth positioning rod. The lower end of the first button contacts the side surface of one end of the right-angle rack. The above device completes automatic wire feeding through a friction wheel transmission mechanism, and has a high degree of automation. However, the above device has the following technical problems when in use, that is, it is not convenient to realize the grip plate-driven automatic wire-feeding operation of the welding wire, it is not convenient to pre-soften the welding wire during wire feeding, and improve the smoothness and smoothness of the wire-feeding structure during wire feeding. Moreover, the existing device is not convenient to realize the automatic locking of the welding wire in the non-working state through a linkage locking structure, and reduce the accidental damage and breakage rate of the welding wire in the non-working state. Based on this, the present invention provides an automatic wire-feeding soldering iron to solve the technical problems proposed in the above background art. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides an automatic wire-feeding soldering iron. When the soldering iron is in use, on the one hand, it can realize the grip plate-driven automatic wire-feeding operation of the welding wire. On the other hand, when the device is feeding wire, it can realize the pre-softening of the welding wire, thereby improving the smoothness and smoothness of the device during wire feeding. Moreover, the device can realize the automatic locking of the welding wire in the non-working state through a linkage locking structure, thereby reducing the accidental damage and breakage rate of the welding wire in the non-working state.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic wire-feeding electric soldering iron, comprising a shell, an inner slide and two symmetrically arranged gripping plates are slidably mounted on the inner wall of the shell, a reset spring for elastically limiting the inner slide is arranged inside the shell, a connecting arm is hinged between the two gripping plates and the inner slide, a soldering rod is rotatably mounted on the inner slide, a smoke exhaust rotary tube is rotatably sleeved on the soldering rod, the soldering rod and the smoke exhaust rotary tube are reversely linked, a rotating smoke exhaust component is arranged on the smoke exhaust rotary tube, a guide shaft is rotatably mounted on the inner wall of the shell, the soldering rod is driven by the guide shaft, and a Internal bevel gears, a rotating wheel is rotatably mounted on one of the grip plates, a motor is mounted on the other grip plate, two symmetrically arranged linkage parts which are transmission-connected to the internal bevel gears are mounted inside the shell, the two linkage parts are driven by the rotating wheel and the motor respectively, two symmetrically arranged stepping wire feeding mechanisms are arranged on the inner slide, a wire threading groove is arranged inside the soldering rod, the guide shaft and the shell, a reel is rotatably mounted on the tail of the shell, welding wire which cooperates with the wire threading groove is wound on the reel, a welding wire softening module is arranged inside the reel, and a linkage limiting component which is linked with the inner slide and limits the reel is arranged inside the shell.

[0006] As a preferred technical solution of the present invention, a reversing shaft is rotatably installed on the inner slide, a side bevel gear is installed on the soldering rod and the smoke exhaust vortex pipe, a reversing bevel gear is installed on the reversing shaft, the two side bevel gears are transmission connected with the reversing bevel gear, and the two side bevel gears are respectively arranged on both sides of the reversing bevel gear.

[0007] As a preferred technical solution of the present invention, a guide groove with an opening at the tail end fixedly opened inside the soldering rod and slidably connected to the guide shaft, and the cross-sections of the guide shaft and the guide groove are both regular polygons.

[0008] As a preferred technical solution of the present invention, the two linkage parts each include a moving shaft and a fixed shaft. The moving shafts in the two linkage parts are rotatably installed on the two grip plates respectively. The bottom end of the fixed shaft is fixedly installed with an active bevel gear, and the active bevel gear is transmission-connected with the internal bevel gear. The rotating wheel and the tail end of one of the moving shafts are fixedly installed with a linkage bevel gear. The output shaft end of the motor is fixedly connected to the other moving shaft. The interior of the moving shaft is fixedly provided with an axis groove with a top opening and slidingly connected to the fixed shaft. The cross-sections of the axis groove and the moving shaft are both regular polygons.

[0009] As a preferred technical solution of the present invention, the rotary smoke exhaust assembly includes a smoking cylinder sleeved on the smoke exhaust rotary pipe. The smoking cylinder is fixedly connected to the housing. A group of smoking strip holes distributed in a circumferential array are formed on the smoke exhaust rotary pipe. A group of fan plates distributed in a circumferential array are installed on the smoke exhaust rotary pipe. The group of smoking strip holes and the group of fan plates are arranged at intervals of two on the smoke exhaust rotary pipe. The smoking cylinder is evenly distributed with mesh holes, and a smoking cotton is sleeved on the smoking cylinder.

[0010] As a preferred technical solution of the present invention, both of the two step wire feeding mechanisms include an active pressure clamp, a wire feeding clamp, and a guiding and pulling plate installed on the inner sliding frame. A pressure guiding plate is installed on the bottom surface of the holding plate. Two symmetrically arranged horizontal guiding grooves and two symmetrically arranged vertical guiding grooves are respectively formed inside the active pressure clamp. The notch direction of the horizontal guiding groove is parallel to the axis direction of the soldering rod, and the notch direction of the vertical guiding groove is perpendicular to the axis of the soldering rod. The pressure guiding plate is slidably connected to the horizontal guiding groove, and the guiding and pulling plate is slidably connected to the vertical guiding groove. A group of compression springs are installed between the active pressure clamp and the wire feeding clamp.

[0011] As a preferred technical solution of the present invention, the wire softening module includes an electric heating rod installed at the axis position of the reel and an electric heating coil installed at the tail of the housing. The electric heating coil is coaxially arranged with the wire threading groove.

[0012] As a preferred technical solution of the present invention, the linkage limiting assembly includes a limiting gear ring installed on the reel and a locking frame installed on the inner sliding frame. The locking frame is slidably connected to the housing, and a locking tooth plate cooperating with the limiting gear ring is installed on the locking frame.

[0013] As a preferred technical solution of the present invention, it further includes a water cooling sleeve installed inside the housing. A group of semiconductor refrigeration arc plates are fixedly installed on the inner wall of the water cooling sleeve. A water cooling cavity is fixedly formed inside the water cooling sleeve. The heat dissipation part of the semiconductor refrigeration arc plate extends into the inside of the water cooling cavity. The inside of the water cooling cavity is filled with a water cooling liquid. A group of heat dissipation fins are installed on the water cooling sleeve. A liquid supplement pipe communicating with the water cooling cavity is fixedly installed on the surface of the water cooling sleeve, and a plug is arranged on the liquid supplement pipe.

[0014] As a preferred technical solution of the present invention, a central control button and a temperature display screen are fixedly arranged on the outer surface of the housing. A ceramic heating core is arranged inside the soldering rod, and an electric wire is arranged at the tail of the housing and electrically connected to the ceramic heating core.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. When this soldering iron is in use, on the one hand, it can realize the grip-plate-driven automatic wire feeding operation of the welding wire. On the other hand, when the device feeds the wire, it can pre-soften the welding wire, thereby improving the smoothness and unobstructedness of wire feeding of the device. Moreover, through the linkage locking structure, the device can automatically lock the welding wire when it is in a non-working state, thereby reducing the accidental damage and breakage rate of the welding wire in the non-working state.

[0017] 2. In the present invention, when wire feeding is required, the two grip plates approach each other. When the two grip plates approach each other, the welding wire is first clamped between the two wire feeding pliers. After the two wire feeding pliers tightly clamp the welding wire, the two grip plates further approach each other. As the grip plates further approach each other, the inner sliding frame drives the two wire feeding pliers to displace. After the inner sliding frame drives the two wire feeding pliers to displace, the traction of the welding wire from the reel is realized. When the two grip plates reset under the action of the return spring, the two wire feeding pliers lose the clamping effect on the welding wire, and the welding wire does not move. Through the above state setting, the grip-plate-driven automatic wire feeding is realized.

[0018] 3. When the soldering rod in the present invention generates heat, the heating coil and the heating rod heat up synchronously. The heating temperature of the heating coil and the heating rod softens the welding wire without melting it. Through the softening setting of the welding wire, on the one hand, it can effectively reduce the tortuosity rate of the welding wire when it is released from the reel. By reducing the tortuosity rate, the walking and sliding ease of the welding wire through the wire threading groove is improved, and the resistance during the wire feeding process of the welding wire is reduced. On the other hand, it can realize the presetting of the welding wire, thereby improving the melting rate of the welding wire when it reaches the soldering rod and the soldering operation efficiency.

[0019] 4. In the present invention, when the grip plate is in a non-pressed state, the locking tooth plate engages with the limit tooth ring, thereby limiting the position of the reel and preventing the rotation and sliding of the welding wire in the non-working state to reduce the breakage rate of the welding wire in the non-working state. When the grip plate is in a pressed state, the locking tooth plate loses the meshing connection with the limit tooth ring, and the reel can move freely, thereby performing the wire feeding and wire walking operations of the welding wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of an automatic wire feeding soldering iron according to the present invention;

[0021] Figure 2 is of the present invention Figure 1 a schematic structural diagram from another perspective;

[0022] Figure 3 is a schematic structural diagram of the fan plate and the locking frame of the present invention;

[0023] Figure 4 is of the present invention Figure 3 a partially enlarged schematic structural diagram at A in;

[0024] Figure 5 is of the present inventionFigure 2 Schematic cross-sectional structure diagram;

[0025] Figure 6 This is the present invention Figure 5 Schematic diagram of the partial enlarged structure at position B in the present invention;

[0026] Figure 7 Schematic structure diagram of the rotating wheel of the present invention;

[0027] Figure 8 This is the present invention Figure 7 Schematic diagram of the partial enlarged structure at position C in the present invention.

[0028] In the figure: 1. Housing; 2. Inner sliding frame; 3. Grip plate; 4. Return spring; 5. Connecting arm; 6. Soldering rod; 7. Smoke exhaust rotating pipe; 8. Guide shaft; 9. Rotating wheel; 10. Motor; 11. Winding wheel; 12. Welding wire; 13. Reverse rotation shaft; 14. Moving shaft rod; 15. Fixed shaft rod; 16. Smoking cylinder; 17. Smoking strip hole; 18. Fan plate; 19. Active pressing clamp; 20. Wire feeding clamp; 21. Guide pulling plate; 22. Pressure guiding plate; 23. Compression spring; 24. Electric heating rod; 25. Electric heating coil; 26. Limiting gear ring; 27. Locking frame; 28. Locking tooth plate; 29. Water cooling sleeve; 30. Semiconductor refrigeration arc plate; 31. Water cooling cavity; 32. Liquid supplement pipe; 33. Central control button; 34. Temperature display screen; 35. Ceramic heating core. Specific embodiments

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] As Figures 1 to 8 shown, the present invention provides an automatic wire-feeding soldering iron, which includes a housing 1. An inner sliding frame 2 and two symmetrically arranged grip plates 3 are slidably installed on the inner wall of the housing 1. A return spring 4 for elastically limiting the inner sliding frame 2 is arranged inside the housing 1. A connecting arm 5 is hinged between each of the two grip plates 3 and the inner sliding frame 2;

[0031] A soldering rod 6 is rotatably installed on the inner sliding frame 2. A smoke exhaust rotating pipe 7 is rotatably sleeved on the soldering rod 6. The soldering rod 6 and the smoke exhaust rotating pipe 7 are reversely linked;

[0032] A central control button 33 and a temperature display screen 34 are fixedly arranged on the outer surface of the housing 1. A ceramic heating core 35 is arranged inside the soldering rod 6. An electric wire is arranged at the tail of the housing 1 and is electrically connected to the ceramic heating core 35;

[0033] The ceramic heating core 35 is concentrated at the end of the iron rod 6, thereby defining the melting area of the welding wire 12;

[0034] When the two grip plates 3 are in a pressed or fully close state, through the arrangement of the two connecting arms 5, the inner sliding frame 2 extends out from the inside of the housing 1 and the end of the iron rod 6 extends out from the smoke exhaust spiral tube 7 to perform electric ironing operation;

[0035] When the two grip plates 3 are in a non-pressed or separated state, through the arrangement of the two connecting arms 5, the inner sliding frame 2 retracts into the inside of the housing 1 and the iron rod 6 retracts into the inside of the smoke exhaust spiral tube 7 to perform the anti-scald protection operation of the iron rod 6;

[0036] A reversing shaft 13 is rotatably installed on the inner sliding frame 2. Side bevel gears are installed on both the iron rod 6 and the smoke exhaust spiral tube 7. A reversing bevel gear is installed on the reversing shaft 13. The two side bevel gears are both in transmission connection with the reversing bevel gear. The two side bevel gears are respectively arranged on both sides of the reversing bevel gear;

[0037] Through the position settings of the reversing shaft 13, the two side bevel gears and the reversing bevel gear, the iron rod 6 and the smoke exhaust spiral tube 7 rotate in a coaxial and reverse rotation state when rotating;

[0038] A rotating smoke exhaust assembly is provided on the smoke exhaust spiral tube 7. A guide shaft 8 is rotatably installed on the inner wall of the housing 1. The iron rod 6 is driven by the guide shaft 8;

[0039] The rotating smoke exhaust assembly includes a smoking cylinder 16 sleeved on the smoke exhaust spiral tube 7. The smoking cylinder 16 is fixedly connected to the housing 1. The smoking cylinder 16 is evenly provided with mesh holes. A smoking cotton is sleeved on the smoking cylinder 16;

[0040] The smoke exhaust spiral tube 7 can slide relative to the smoking cylinder 16;

[0041] A group of smoking strip holes 17 are arranged in a circumferential array on the smoke exhaust spiral tube 7. A group of fan plates 18 are arranged in a circumferential array on the smoke exhaust spiral tube 7. The group of smoking strip holes 17 and the group of fan plates 18 are arranged at intervals of two on the smoke exhaust spiral tube 7;

[0042] When the electric iron is working, when heat dissipation and smoke exhaust operations are required during electric ironing work, the smoke exhaust spiral tube 7 rotates at a set speed. After the smoke exhaust spiral tube 7 rotates, through the arrangement of the fan plate 18, the smoke is adsorbed from the inside of the smoke exhaust spiral tube 7. The smoke adsorbed by the smoke exhaust spiral tube 7 finally escapes through the smoking cylinder 16. When the smoke escapes through the smoking cylinder 16, it is filtered and absorbed by the smoking cotton;

[0043] The material and thickness of the smoking cotton can be customized according to actual needs;

[0044] An inner bevel gear is provided on the guide shaft 8, a rotary wheel 9 is rotatably mounted on one grip plate 3, a motor 10 is mounted on the other grip plate 3, and two linkage members symmetrically arranged and transmission-connected with the inner bevel gear are mounted inside the housing 1, and the two linkage members are driven by the rotary wheel 9 and the motor 10 respectively;

[0045] The soldering rod 6 is fixedly provided with a guide groove with an opening at the rear end and slidably connected to the guide shaft 8. The cross sections of the guide shaft 8 and the guide groove are both regular polygons.

[0046] By setting the regular polygonal cross-section of the guide shaft 8 and the guide groove, the guide shaft 8 can continuously drive the soldering rod 6 when the soldering rod 6 moves;

[0047] The two linkage members each include a moving shaft rod 14 and a fixed shaft rod 15, and the moving shaft rods 14 in the two linkage members are rotatably mounted on the two gripping plates 3 respectively;

[0048] The bottom end of the fixed shaft rod 15 is fixedly installed with an active bevel gear, which is transmission-connected with the internal bevel gear. The tail ends of the rotating wheel 9 and a movable shaft rod 14 are fixedly installed with a linkage bevel gear. The output shaft end of the motor 10 is fixedly connected with the other movable shaft rod 14. The interior of the movable shaft rod 14 is fixedly provided with an axis groove with a top opening and slidingly connected with the fixed shaft rod 15. The cross sections of the axis groove and the movable shaft rod 14 are both regular polygons.

[0049] When the electric soldering iron is working and smoke exhaust is required, the device is provided with two modes. The first mode is the electric working mode. In the electric working mode, the motor 10 outputs the speed in a set state. After the motor 10 outputs the speed, the guide shaft 8 is driven to rotate through the moving shaft rod 14 and the fixed shaft rod 15.

[0050] When the manual working mode is required, the rotating wheel 9 is manually rotated under the driving action of the user. After the rotating wheel 9 rotates, the guide shaft 8 is driven to rotate through the moving shaft rod 14 and the fixed shaft rod 15.

[0051] After the guide shaft 8 is driven to rotate, the soldering rod 6 rotates at a set speed relative to the soldering wire 12. The soldering rod 6 rotates relative to the soldering wire 12 to effectively reduce the adhesion and clogging rate of the solder inside the soldering rod 6 and maintain the sliding ease and smoothness of the soldering wire 12 inside the soldering rod 6.

[0052] The inner slide 2 is provided with two symmetrically arranged stepping wire feeding mechanisms;

[0053] Both of the two step wire feeding mechanisms include a driving pressure clamp 19, a wire feeding clamp 20 and a guiding and pulling plate 21 installed on the inner carriage 2. A pressure guiding plate 22 is installed on the bottom surface of the holding plate 3. Inside the driving pressure clamp 19, two symmetrically arranged horizontal guiding grooves and two symmetrically arranged vertical guiding grooves are respectively formed. The notch direction of the horizontal guiding groove is parallel to the axial direction of the soldering rod 6, and the notch direction of the vertical guiding groove is perpendicular to the axial direction of the soldering rod 6. The pressure guiding plate 22 is slidably connected to the horizontal guiding groove, and the guiding and pulling plate 21 is slidably connected to the vertical guiding groove. A set of compression springs 23 is installed between the driving pressure clamp 19 and the wire feeding clamp 20;

[0054] When wire feeding is required, the two holding plates 3 approach each other. When the two holding plates 3 approach each other, the welding wire 12 is first clamped between the two wire feeding clamps 20. After the two wire feeding clamps 20 tightly clamp the welding wire 12, the two holding plates 3 further approach each other. As the two holding plates 3 further approach each other, the inner carriage 2 drives the two wire feeding clamps 20 to displace. After the inner carriage 2 drives the two wire feeding clamps 20 to displace, the traction of the welding wire 12 from the reel 11 is realized;

[0055] When the two holding plates 3 are reset under the action of the return spring 4, the two wire feeding clamps 20 lose the clamping effect on the welding wire 12, and the welding wire 12 does not move. Through the above state setting, the automatic wire feeding driven by the holding plate 3 is realized;

[0056] A wire threading groove is provided inside each of the soldering rod 6, the guide shaft 8 and the housing 1. A reel 11 is rotatably installed at the tail of the housing 1. The welding wire 12 matched with the wire threading groove is wound on the reel 11, and a welding wire softening module is provided inside the reel 11;

[0057] The welding wire softening module includes an electric heating rod 24 installed at the axial position of the reel 11 and an electric heating coil 25 installed at the tail of the housing 1. The electric heating coil 25 is coaxially arranged with the wire threading groove;

[0058] When the soldering rod 6 generates heat, the electric heating coil 25 and the electric heating rod 24 generate heat synchronously. The heating temperature of the electric heating coil 25 and the electric heating rod 24 softens the welding wire 12 without melting it. Through the softening setting of the welding wire 12, on the one hand, the winding rate of the welding wire 12 when released from the reel 11 can be effectively reduced. By reducing the winding rate, the walking and sliding ease of the welding wire 12 through the wire threading groove can be improved, and the resistance during the wire feeding process of the welding wire 12 can be reduced. On the other hand, the preset of the welding wire 12 can be realized, and then the melting rate of the welding wire 12 when it walks to the soldering rod 6 and the electric soldering operation efficiency can be improved;

[0059] A linkage limiting component that is linked with the inner carriage 2 and limits the reel 11 is provided inside the housing 1.

[0060] The linkage limiting component includes a limiting gear ring 26 installed on the reel 11 and a locking frame 27 installed on the inner carriage 2. The locking frame 27 is slidably connected to the housing 1, and a locking tooth plate 28 that cooperates with the limiting gear ring 26 is installed on the locking frame 27.

[0061] When the holding plate 3 is in a non-pressed state, the locking tooth plate 28 engages with the limit tooth ring 26, thereby restricting the position of the wire reel 11 and preventing the rotation and sliding of the welding wire 12 in the non-working state, so as to reduce the breakage rate of the welding wire 12 in the non-working state;

[0062] When the holding plate 3 is in a pressed state, the locking tooth plate 28 loses the meshing connection with the limit tooth ring 26, and the wire reel 11 can move freely, and then the feeding and wire feeding operations of the welding wire 12 are carried out;

[0063] It further includes a water-cooling sleeve 29 installed in the housing 1. A group of semiconductor refrigeration arc plates 30 are fixedly installed on the inner wall of the water-cooling sleeve 29. A water-cooling cavity 31 is fixedly formed inside the water-cooling sleeve 29. The heat dissipation part of the semiconductor refrigeration arc plate 30 extends into the water-cooling cavity 31. The water-cooling liquid is filled inside the water-cooling cavity 31. A group of heat dissipation fins are installed on the water-cooling sleeve 29. A liquid supplement pipe 32 communicating with the water-cooling cavity 31 is fixedly installed on the surface of the water-cooling sleeve 29. A plug is arranged on the liquid supplement pipe 32.

[0064] When the welding wire 12 has completed the work and it is necessary to realize the rapid water cooling operation of the soldering rod 6 and the welding wire 12, the semiconductor refrigeration arc plate 30 cools the welding wire 12, and the motor 10 can rotate at a set speed, so as to realize the rapid cooling of the soldering rod 6 and the welding wire 12. Through the settings of the water-cooling cavity 31 and the water-cooling liquid, the refrigeration effect of the semiconductor refrigeration arc plate 30 can be maintained.

[0065] Working principle and usage process of the present invention: When the two grip plates 3 are in a pressed or fully close state, due to the arrangement of the two connecting arms 5, the inner carriage 2 extends out from the interior of the housing 1 and the end of the soldering rod 6 extends out from the smoke exhaust spiral tube 7, and then the electric soldering operation is carried out. When the two grip plates 3 are in a non-pressed or mutually separated state, due to the arrangement of the two connecting arms 5, the inner carriage 2 retracts into the interior of the housing 1 and the soldering rod 6 retracts into the interior of the smoke exhaust spiral tube 7, and then the anti-scald protection operation of the soldering rod 6 is carried out. When the electric soldering iron is working and smoke exhaust operation is required, this device has two modes in total. The first mode is the electric working mode. In the electric working mode, the motor 10 outputs a rotational speed in a set state. After the motor 10 outputs the rotational speed, the guide shaft 8 is driven to rotate through the moving shaft rod 14 and the fixed shaft rod 15. When the manual working mode is required, the rotating wheel 9 rotates manually under the driving action of the user. After the rotating wheel 9 rotates, the guide shaft 8 is driven to rotate through the moving shaft rod 14 and the fixed shaft rod 15. And after the guide shaft 8 is driven to rotate, the soldering rod 6 rotates relative to the welding wire 12 at a set speed. Through the rotation state of the soldering rod 6 relative to the welding wire 12, the adhesion and blockage rate of the solder in the soldering rod 6 can be effectively reduced, and the sliding ease and smoothness of the welding wire 12 inside the soldering rod 6 can be maintained. When wire feeding is required, the two grip plates 3 approach each other. When the two grip plates 3 approach each other, the welding wire 12 is first clamped between the two wire feeding pliers 20. After the two wire feeding pliers 20 tightly clamp the welding wire 12, the two grip plates 3 approach each other further. As the grip plates 3 approach each other further, the inner carriage 2 drives the two wire feeding pliers 20 to displace. After the inner carriage 2 drives the two wire feeding pliers 20 to displace, the traction of the welding wire 12 from the reel 11 is realized. When the two grip plates 3 are reset under the action of the return spring 4, the two wire feeding pliers 20 lose the clamping effect on the welding wire 12 and the welding wire 12 does not move. Through the above state setting, the grip plate 3-driven automatic wire feeding is realized. When the soldering rod 6 generates heat, the heating coil 25 and the heating rod 24 generate heat synchronously. The heating temperature of the heating coil 25 and the heating rod 24 softens the welding wire 12 without melting it. Through the softening setting of the welding wire 12, on the one hand, the bending rate of the welding wire 12 when it is released from the reel 11 can be effectively reduced. By reducing the bending rate, the walking and sliding of the welding wire 12 through the wire threading groove can be improved, and the resistance during the wire feeding process of the welding wire 12 can be reduced. On the other hand, the preset of the welding wire 12 can be realized, and then the melting rate of the welding wire 12 when it walks to the soldering rod 6 and the electric soldering operation efficiency can be improved. When the grip plate 3 is in a non-pressed state, the locking tooth plate 28 engages with the limit tooth ring 26, and then the position of the reel 11 is limited and the rotation and sliding of the welding wire 12 in the non-working state are avoided, so as to reduce the breakage rate of the welding wire 12 in the non-working state. When the grip plate 3 is in a pressed state, the locking tooth plate 28 loses the meshing connection relationship with the limit tooth ring 26, and the reel 11 can move freely, and then the wire feeding and wire walking operations of the welding wire 12 are carried out. When the welding wire 12 has completed the work and rapid water cooling operation of the soldering rod 6 and the welding wire 12 is required,The semiconductor refrigeration arc piece 30 cools the welding wire 12. The motor 10 can be set to rotate at a certain speed, so as to achieve the rapid cooling of the soldering iron rod 6 and the welding wire 12. Through the setting of the water cooling cavity 31 and the cooling liquid, the refrigeration effect of the semiconductor refrigeration arc piece 30 can be maintained.

[0066] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0067] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic wire feeding electric soldering iron, comprising a housing (1), characterized in that: An inner slide (2) and two symmetrically arranged gripping plates (3) are slidably mounted on the inner wall of the shell (1); a return spring (4) for elastically limiting the inner slide (2) is arranged inside the shell (1); a connecting arm (5) is hinged between the two gripping plates (3) and the inner slide (2); a soldering rod (6) is rotatably mounted on the inner slide (2); a smoke exhaust rotary tube (7) is rotatably sleeved on the soldering rod (6); the soldering rod (6) and the smoke exhaust rotary tube (7) are reversely linked; a rotating smoke exhaust assembly is arranged on the smoke exhaust rotary tube (7); a guide shaft (8) is rotatably mounted on the inner wall of the shell (1); the soldering rod (6) is driven by the guide shaft (8); an inner bevel tooth is arranged on the guide shaft (8); a screwdriver (6) is rotatably mounted on the gripping plate (3); A rotating wheel (9), a motor (10) is installed on the other grip plate (3), two symmetrically arranged linkage parts connected to the internal bevel gear transmission are installed inside the shell (1), and the two linkage parts are driven by the rotating wheel (9) and the motor (10) respectively. Two symmetrically arranged stepping wire feeding mechanisms are provided on the inner slide (2), and a wire threading groove is provided inside the soldering rod (6), the guide shaft (8) and the shell (1). A reel (11) is rotatably installed at the tail of the shell (1), and a welding wire (12) matched with the wire threading groove is wound on the reel (11). A welding wire softening module is provided inside the reel (11), and a linkage limiting component is provided inside the shell (1) which is linked to the inner slide (2) and limits the reel (11).

2. The automatic wire-feeding electric soldering iron according to claim 1, characterized in that: A reversing shaft (13) is rotatably mounted on the inner slide (2), a side bevel gear is mounted on each of the soldering rod (6) and the smoke exhaust vortex (7), a reversing bevel gear is mounted on the reversing shaft (13), both of the side bevel gears are transmission-connected to the reversing bevel gear, and the two side bevel gears are respectively arranged on both sides of the reversing bevel gear.

3. The automatic wire-feeding electric soldering iron according to claim 1, characterized in that: The interior of the soldering rod (6) is fixedly provided with a guide groove with a tail end opening and slidably connected to the guide shaft (8); the cross sections of the guide shaft (8) and the guide groove are both regular polygons.

4. The automatic wire-feeding electric soldering iron according to claim 2, characterized in that: The two linkage members each comprise a moving shaft (14) and a fixed shaft (15); the moving shafts (14) in the two linkage members are rotatably mounted on the two gripping plates (3) respectively; the bottom end of the fixed shaft (15) is fixedly mounted with an active bevel gear, the active bevel gear is transmission-connected with the internal bevel gear; the tail end of the rotating wheel (9) and one of the moving shafts (14) are both fixedly mounted with a linkage bevel gear; the output shaft end of the motor (10) is fixedly connected with the other moving shaft (14); the interior of the moving shaft (14) is fixedly provided with an axis groove with a top opening and slidably connected with the fixed shaft (15); the cross-sections of the axis groove and the moving shaft (14) are both regular polygons.

5. The automatic wire-feeding electric soldering iron according to claim 1, characterized in that: The rotary smoke exhaust component comprises a smoking tube (16) sleeved on the smoke exhaust cyclone (7), the smoking tube (16) being fixedly connected to the shell (1), the smoke exhaust cyclone (7) being provided with a group of smoking rod holes (17) distributed in a circumferential array, the smoke exhaust cyclone (7) being provided with a group of fan plates (18) distributed in a circumferential array, the group of smoking rod holes (17) and the group of fan plates (18) being arranged at intervals of two on the smoke exhaust cyclone (7), the smoking tube (16) being evenly distributed with mesh holes, and the smoking tube (16) being sleeved with smoking cotton.

6. The automatic wire-feeding electric soldering iron according to claim 1, characterized in that: The two step-by-step wire feeding mechanisms each include an active pressure clamp (19), a wire feeding clamp (20) and a guide plate (21) installed on the inner slide (2); a pressure guide plate (22) is installed on the bottom surface of the gripping plate (3); two symmetrically arranged flat guide grooves and two symmetrically arranged vertical guide grooves are respectively provided inside the active pressure clamp (19); the groove direction of the flat guide groove is parallel to the axial direction of the soldering rod (6); the groove direction of the vertical guide groove is perpendicular to the axial direction of the soldering rod (6); the pressure guide plate (22) is slidably connected to the flat guide groove; the guide plate (21) is slidably connected to the vertical guide groove; a group of clamping springs (23) are installed between the active pressure clamp (19) and the wire feeding clamp (20).

7. The automatic wire-feeding electric soldering iron according to claim 1, characterized in that: The welding wire softening module comprises an electric heating rod (24) installed at the axis position of the reel (11) and an electric heating ring (25) installed at the rear of the shell (1), and the electric heating ring (25) is coaxially arranged with the wire threading slot.

8. The automatic wire-feeding electric soldering iron according to claim 1, characterized in that: The linkage limiting assembly comprises a limiting gear ring (26) mounted on the reel (11) and a locking frame (27) mounted on the inner slide (2); the locking frame (27) is slidably connected to the housing (1); and a locking tooth plate (28) matched with the limiting gear ring (26) is mounted on the locking frame (27).

9. The automatic wire-feeding electric soldering iron according to claim 1, characterized in that: The invention also comprises a water cooling jacket (29) installed in the shell (1), a group of semiconductor refrigeration arc sheets (30) being fixedly installed on the inner wall of the water cooling jacket (29), a water cooling cavity (31) being fixedly opened inside the water cooling jacket (29), a heat dissipation portion of the semiconductor refrigeration arc sheets (30) extending into the interior of the water cooling cavity (31), the interior of the water cooling cavity (31) being filled with water cooling liquid, a group of heat dissipation fins being installed on the water cooling jacket (29), a liquid replenishing tube (32) being fixedly installed on the surface of the water cooling jacket (29) and being connected to the water cooling cavity (31), and a plug being provided on the liquid replenishing tube (32).

10. The automatic wire-feeding electric soldering iron according to claim 1, characterized in that: A central control button (33) and a temperature display screen (34) are fixedly provided on the outer surface of the shell (1), a ceramic heating core (35) is provided inside the soldering rod (6), and an electric wire electrically connected to the ceramic heating core (35) is provided at the rear end of the shell (1).

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