CN112605488A

CN112605488A - Reflow furnace gas control system and control method

Info

Publication number: CN112605488A
Application number: CN202110084264.XA
Authority: CN
Inventors: 方志伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-04-06

Abstract

The invention discloses a reflow furnace gas control system and a reflow furnace gas control method. The invention adjusts the distance between the guide plates through the bidirectional screw rod and the threaded sleeve by the motor, adjusts the inclination angles of the first rotating plate and the second rotating plate through the adjusting assembly by the transmission assembly, and finally performs heat preservation and heating on gas through the heat preservation assembly by the heating pipe, thereby having the advantage of effectively adjusting and controlling the gas, and solving the problems that the traditional reflow oven only controls the gas flow direction through a single fan or an upper fan and a lower fan, has poor control effect, is not convenient for a user to perform multi-angle adjustment and control on the gas flow direction, cannot control the blowing distance of the gas, and further cannot weld devices with different sizes.

Description

Reflow furnace gas control system and control method

Technical Field

The invention relates to the technical field of reflow furnaces, in particular to a reflow furnace gas control system and a reflow furnace gas control method.

Background

A reflow furnace, namely a reflow soldering furnace, is a device required by SMT process in the electronic technology industry, and the reflow furnace process realizes the soldering of mechanical and electrical connection between the soldering end or pin of a surface-mounted component and the soldering pad of a printed board by re-melting paste soft solder pre-distributed on the soldering pad of the printed board.

And the reflow oven can control gas for reaching heat retaining purpose, but current reflow oven only controls the gas flow direction through single or two upper and lower fans, and control effect is relatively poor, and the not convenient to use person carries out multi-angle adjustment control to the gas flow direction, can't control the interval of blowing of gas simultaneously, and then can't weld the device of equidimension not.

Disclosure of Invention

In order to solve the problems in the background art, the invention aims to provide a reflow oven gas control system and a control method, which have the advantage of effectively adjusting and controlling gas, and solve the problems that the conventional reflow oven only controls the gas flow direction through a single fan or an upper fan and a lower fan, has poor control effect, is inconvenient for a user to adjust and control the gas flow direction in multiple angles, cannot control the blowing distance of the gas, and further cannot weld devices with different sizes.

In order to achieve the purpose, the invention provides the following technical scheme: a reflow furnace gas control system comprises a bottom box, wherein the top of the bottom box is communicated with a top box, the top of the top box is provided with a cover plate, the right side of the top of the cover plate is fixedly connected with a limiting rod, the front side and the rear side of the surface of the limiting rod are respectively sleeved with a limiting sleeve in a sliding manner, the bottom of the limiting sleeve is fixedly connected with the top of the top box, the bottom of the cover plate is fixedly connected with a sealing gasket, the left top of an inner cavity of the top box is provided with a scaling powder pipe, the bottom of the scaling powder pipe is communicated with a branch pipe, a conveying device is arranged in the bottom box, the top and the bottom of the conveying device are respectively provided with a wind distribution plate, the two sides of the inner cavity of the bottom box and the two sides of the inner cavity of the top box are respectively fixedly connected with a mounting plate, one side of the wind distribution plate, which, the right side of the inner wall of the top box and the right side of the inner wall of the bottom box are both fixedly connected with a supporting plate, the inside of the supporting plate is fixedly connected with an axial flow fan, the top of the axial flow fan is communicated with an air guide sleeve, the two sides of the air guide sleeve are both communicated with a square sleeve, the two sides of the inner wall of the bottom box are both fixedly connected with an air box, the inside of the air box is provided with a flow guide fan, the top and the bottom of one side of the air box, which is close to the conveying device, are both provided with a first guide hole, the top and the bottom of the air box are both provided with a second guide hole, the inside of the air box is vertically and fixedly connected with a round sleeve plate which is matched with the flow guide fan, the front and the back of the bottom box are both provided with material ports, the right end of one side, the fixed surface of swivel nut is connected with the gib block, the gib block runs through the backup pad and extends to the outside of backup pad near conveyer's one end, the gib block is close to conveyer's one side fixedly connected with deflector, the deflector cover is established on the surface of square sleeve, it has commentaries on classics board one to distribute the aerofoil near one side of conveyer through the pin rod is articulated, the bottom sliding connection who changes board one has pull rod one, the surperficial slip of pull rod one has cup jointed the commentaries on classics board two that is located commentaries on classics board one bottom, the fixed surface of pull rod one is connected with pull rod two, it has the driving plate to change board two one side that is close to conveyer through the pin rod is articulated, the surface of driving plate is provided with drive assembly, one side that pull rod two is close to bellows is provided with adjusting part, the.

Preferably, the transmission assembly includes an electric cylinder, a first connection plate, a second connection plate and a connection port, the electric cylinder is disposed on one side of the support plate away from the transmission device, the first connection plate is fixedly connected to four corners of the surface of the electric cylinder, one side of the first connection plate close to the support plate is fixedly connected to the surface of the support plate, the second connection plate is fixedly connected to four corners of the surface of the output shaft of the electric cylinder, one end of the second connection plate away from the electric cylinder penetrates through the support plate and is fixedly connected to the surface of the transmission plate, and the connection port is disposed on the surface of the transmission plate.

Preferably, the front end and the rear end of each of the two sides of the conveying device are fixedly connected with a reinforcing sleeve, one side of each reinforcing sleeve, which is far away from the conveying device, is fixedly connected inside the bottom box, and a triangular plate is fixedly connected inside the reinforcing sleeve.

Preferably, the adjusting assembly comprises an adjusting plate, an adjusting sleeve, a screw, a rotary table, a bearing seat, a pulling sleeve and a spring, the adjusting plate is fixedly connected to two sides of an inner cavity of the transmission plate, the adjusting sleeve is fixedly connected inside the adjusting plate, the screw is in threaded connection inside the adjusting sleeve, the rotary table is fixedly connected to one end, away from the second pull rod, of the screw, the bearing seat is fixedly connected to one end, away from the rotary table, of the screw, the pulling sleeve is fixedly connected to one end, away from the screw, of the bearing seat, the spring is fixedly connected to one end, away from the screw, of the pulling sleeve, and one end, away from the pulling sleeve.

Preferably, the top and the bottom of the inner wall of the air box, which are far away from the conveying device, are both fixedly connected with a first baffle, the top and the bottom of the inner wall of the air box, which are near to the conveying device, are both fixedly connected with a second baffle, and the first baffle is obliquely arranged.

Preferably, the heat preservation assembly comprises a bolt, a first threaded hole, an arc-shaped plate, a heat reflection plate and a handle, the arc-shaped plate is arranged on the surface of the mounting plate, the bolt is arranged on the inner side of the arc-shaped plate, the first threaded hole is formed in the surface of the mounting plate, the arc-shaped plate is fixedly arranged on the surface of the mounting plate through the bolt and the first threaded hole, the handle is fixedly connected to the surface of the arc-shaped plate, and the heat reflection plate is fixedly connected to the inner portion of the arc-shaped plate.

Preferably, the front end and the rear end of the second pull rod are fixedly connected with baffle discs, the surface of the adjusting sleeve is fixedly connected with a positioning plate, and one side, close to the adjusting plate, of the positioning plate is fixedly connected to the surface of the adjusting plate.

Preferably, the top of the left side of the inner cavity of the top box is transversely and fixedly connected with a compression plate, a second threaded hole is formed in the compression plate, a compression rod is arranged on the left side of the top of the cover plate, the top of the compression rod is fixedly connected with a compression plate, the bottom of the compression plate is in contact with the top of the cover plate, the bottom end of the compression rod penetrates through the cover plate and is in threaded connection with the inside of the second threaded hole, a filter screen is fixedly connected to one side, close to the conveying device, of the axial flow fan, a square opening matched with the square sleeve is formed in the surface of the guide plate, a screw sleeve is sleeved on the left side of the surface of the reciprocating screw in a.

Preferably, the method comprises the following steps:

s1: firstly, a motor drives a bidirectional screw rod to rotate, the bidirectional screw rod drives guide plates to mutually approach or separate through a threaded sleeve, the distance between the guide plates is reduced or increased, and S2 is executed after the proper distance is reached;

s2: pulling or pushing the second pull rod through the adjusting assembly, then driving the first rotating plate and the second rotating plate to rotate through the transmission plate by the transmission assembly, enabling the first rotating plate and the second rotating plate to be in an inclined state, starting the heat preservation assembly after reaching a proper inclination, and executing S3;

s3: the conveying device conveys the devices, the heating pipes are used for heating, the guide fan and the axial flow fan are used for circularly pumping hot air to heat and weld the devices, the hot air can heat the devices with different sizes, and finally the devices are discharged through the material port.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention drives the guide plates to mutually approach or separate through the bidirectional screw rod and the threaded sleeve by the motor to adjust the distance, adjusts the inclination angles of the first rotating plate and the second rotating plate through the transmission assembly, enables the first rotating plate and the second rotating plate to conduct different-angle flow guide on air flow, and finally conducts heat preservation and heating on the air through the heat preservation assembly by the heating pipe, thereby having the advantage of effectively adjusting and controlling the air, and solving the problems that the traditional reflow oven only controls the air flow direction through a single fan or two fans, has poor control effect, is inconvenient for a user to conduct multi-angle adjustment and control on the air flow direction, cannot control the blowing distance of the air, and further cannot weld devices with different sizes.

2. According to the invention, the first connecting plate is fixedly connected to the four corners of the surface of the electric cylinder, one side of the first connecting plate, which is close to the supporting plate, is fixedly connected to the surface of the supporting plate, and the first connecting plate is arranged, so that the electric cylinder can be supported and fixed, and the stability of the electric cylinder is improved.

3. The front end and the rear end of the two sides of the conveying device are fixedly connected with the reinforcing sleeves, one side of each reinforcing sleeve, which is far away from the conveying device, is fixedly connected inside the bottom box, and the contact area between the conveying device and the bottom box can be increased by arranging the reinforcing sleeves, so that the stability of the conveying device is improved, and the phenomenon that the conveying device shakes when in use is avoided.

4. According to the invention, the turntable is fixedly connected to one end of the screw rod, which is far away from the second pull rod, the bearing seat is fixedly connected to one end of the screw rod, which is far away from the turntable, so that a user can conveniently rotate the screw rod, and meanwhile, compared with the prior reflow oven which does not have a certain adjusting structure, the adjusting assembly can adjust the elasticity of the spring, so that the spring can pull or push the second pull rod, and the practicability of the spring is improved.

5. According to the invention, the top and the bottom of the inner wall of the air box, which are far away from the conveying device, are both fixedly connected with the first baffle, and the top and the bottom of the inner wall of the air box, which are near to the conveying device, are both fixedly connected with the second baffle.

6. According to the invention, the handle is fixedly connected to the surface of the arc-shaped plate, the heat reflection plate is fixedly connected to the inside of the arc-shaped plate, and the handle is arranged, so that a user can pull the arc-shaped plate conveniently, and the phenomenon that the user cannot pull the arc-shaped plate effectively is avoided.

7. According to the invention, the front end and the rear end of the second pull rod are fixedly connected with the baffle discs, the surface of the adjusting sleeve is fixedly connected with the positioning plate, and the second pull rod can be limited by arranging the baffle discs, so that the phenomenon that the second pull rod is separated from the second rotating plate is avoided, and the stability of the second pull rod is improved.

8. According to the invention, the compression plate is transversely and fixedly connected to the top of the left side of the inner cavity of the top box, the threaded hole II is formed in the compression plate, the compression rod is arranged on the left side of the top of the cover plate, and the compression plate, the threaded hole II and the compression rod are arranged to compress the cover plate, so that the stability of the cover plate is improved, and the gap between the sealing gasket and the top box is reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional elevation view of a structural air box of the present invention;

FIG. 3 is a schematic top view of a structural electric cylinder of the present invention;

FIG. 4 is a left side view of a second rotary plate according to the present invention;

FIG. 5 is an enlarged view of the structure at A in FIG. 1;

FIG. 6 is an enlarged view of the structure at B in FIG. 1 according to the present invention;

FIG. 7 is an enlarged view of the structure of FIG. 1 at C according to the present invention;

FIG. 8 is an enlarged view of the structure of FIG. 1 at D in accordance with the present invention;

FIG. 9 is an enlarged view of E of FIG. 1 in accordance with the present invention;

fig. 10 is a perspective view of the guide plate of the present invention.

In the figure: 1. a bottom box; 2. a top box; 3. a cover plate; 4. a limiting rod; 5. a limiting sleeve; 6. a gasket; 7. a flux tube; 8. pipe distribution; 9. a conveying device; 10. a wind distribution plate; 11. mounting a plate; 12. heating a tube; 13. a support plate; 14. an axial flow fan; 15. a gas guide sleeve; 16. a square sleeve; 17. an air box; 18. a flow guiding fan; 19. a first guide hole; 20. a second guide hole; 21. a circular sleeve plate; 22. a material port; 23. a motor; 24. a bidirectional lead screw; 25. a threaded sleeve; 26. a concave plate; 27. a guide plate; 28. rotating the first plate; 29. a first pull rod; 30. rotating a second plate; 31. a second pull rod; 32. a drive plate; 33. a transmission assembly; 331. an electric cylinder; 332. a first connecting plate; 333. a second connecting plate; 334. a connecting port; 34. an adjustment assembly; 341. an adjusting plate; 342. an adjusting sleeve; 343. a screw; 344. a turntable; 345. a bearing seat; 346. pulling the sleeve; 347. a spring; 35. a heat preservation assembly; 351. a bolt; 352. a first threaded hole; 353. an arc-shaped plate; 354. a heat reflection plate; 355. a handle; 36. a reinforcing sleeve; 37. a set square; 38. a first baffle plate; 39. a second baffle plate; 40. a catch tray; 41. positioning a plate; 42. a compression plate; 43. a second threaded hole; 44. a pressure lever; 45. pressing a plate; 46. a filter screen; 47. square opening; 48. and (4) a screw sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 10, the gas control system of the reflow furnace provided by the invention comprises a bottom box 1, wherein the top of the bottom box 1 is communicated with a top box 2, the top of the top box 2 is provided with a cover plate 3, the right side of the top of the cover plate 3 is fixedly connected with a limiting rod 4, the front side and the rear side of the surface of the limiting rod 4 are respectively sleeved with a limiting sleeve 5 in a sliding manner, the bottom of the limiting sleeve 5 is fixedly connected with the top of the top box 2, the bottom of the cover plate 3 is fixedly connected with a sealing gasket 6, the top of the left side of the inner cavity of the top box 2 is provided with a scaling powder pipe 7, the bottom of the scaling powder pipe 7 is communicated with a branch pipe 8, the bottom of the bottom box 1 is internally provided with a conveying device 9, the top and the bottom of the conveying device 9 are respectively provided with a wind distribution plate 10, the two sides of the inner cavity of the bottom box 1 and the two sides of the inner cavity of the top box 2 are respectively, the right side of the inner wall of the top box 2 and the right side of the inner wall of the bottom box 1 are both fixedly connected with a supporting plate 13, the inside of the supporting plate 13 is fixedly connected with an axial flow fan 14, the top of the axial flow fan 14 is communicated with an air guide sleeve 15, both sides of the air guide sleeve 15 are both communicated with a square sleeve 16, both sides of the inner wall of the bottom box 1 are both fixedly connected with an air box 17, the inside of the air box 17 is provided with a guide fan 18, the top and the bottom of one side of the air box 17 close to the conveying device 9 are both provided with a guide hole I19, both the top and the bottom of the air box 17 are both provided with a guide hole II 20, the inside of the air box 17 is vertically and fixedly connected with a round sleeve plate 21 matched with the guide fan 18 for use, the front and the back of the bottom box 1 are both provided with material ports 22, the right end of the supporting plate, the surface of the screw sleeve 25 is fixedly connected with a concave plate 26, one end of the concave plate 26 close to the conveying device 9 penetrates through the supporting plate 13 and extends to the outer side of the supporting plate 13, one side of the concave plate 26 close to the conveying device 9 is fixedly connected with a guide plate 27, the guide plate 27 is sleeved on the surface of the square sleeve 16, one side of the wind distribution plate 10 close to the conveying device 9 is hinged with a first rotating plate 28 through a pin rod, the bottom of the first rotating plate 28 is connected with a first pull rod 29 in a sliding mode, a second rotating plate 30 located at the bottom of the first rotating plate 28 is sleeved on the surface of the first pull rod 29 in a sliding mode, a second pull rod 31 is fixedly connected with the surface of the first pull rod 29, one side of the second rotating plate 30 close to the conveying device 9 is hinged with a driving plate 32 through a pin rod, the surface of the driving plate 32 is provided with a driving component 33.

Referring to fig. 1, the driving assembly 33 includes an electric cylinder 331, a first connecting plate 332, a second connecting plate 333 and a connecting port 334, the electric cylinder 331 is disposed on a side of the supporting plate 13 away from the conveying device 9, the first connecting plate 332 is fixedly connected to four corners of the surface of the electric cylinder 331, a side of the first connecting plate 332 close to the supporting plate 13 is fixedly connected to the surface of the supporting plate 13, the second connecting plate 333 is fixedly connected to four corners of the surface of an output shaft of the electric cylinder 331, one end of the second connecting plate 333 away from the electric cylinder 331 penetrates through the supporting plate 13 and is fixedly connected to the surface of the driving plate 32, and the.

As a technical optimization scheme of the invention, the first connecting plate 332 is arranged, so that the electric cylinder 331 can be supported and fixed, and the stability of the electric cylinder 331 is improved.

Referring to fig. 1, the front end and the rear end of both sides of the conveying device 9 are fixedly connected with a reinforcing sleeve 36, one side of the reinforcing sleeve 36 far away from the conveying device 9 is fixedly connected inside the bottom box 1, and a triangular plate 37 is fixedly connected inside the reinforcing sleeve 36.

As a technical optimization scheme of the invention, the contact area between the conveying device 9 and the bottom box 1 can be increased by arranging the reinforcing sleeve 36, the stability of the conveying device 9 is improved, and the phenomenon that the conveying device 9 shakes during use is avoided.

Referring to fig. 9, the adjusting assembly 34 includes an adjusting plate 341, an adjusting sleeve 342, a screw 343, a rotating disc 344, a bearing seat 345, a pull sleeve 346 and a spring 347, the adjusting plate 341 is fixedly connected to both sides of the inner cavity of the transmission plate 32, the adjusting sleeve 342 is fixedly connected to the inside of the adjusting plate 341, the screw 343 is screwed to the inside of the adjusting sleeve 342, the rotating disc 344 is fixedly connected to one end of the screw 343 away from the second tie rod 31, the bearing seat 345 is fixedly connected to one end of the screw 343 away from the rotating disc 344, the pull sleeve 346 is fixedly connected to one end of the bearing seat 345 away from the screw 343, the spring 347 is fixedly connected to one end of the pull sleeve 346 away from the screw 343, and one.

As a technical optimization scheme of the invention, the screw 343 can be conveniently rotated by a user through the arrangement of the turntable 344, and meanwhile, compared with the prior reflow oven which does not have a certain adjusting structure, the adjusting assembly 34 can adjust the elastic force of the spring 347, so that the spring 347 can pull or push the second pull rod 31, and the practicability of the spring 347 is improved.

Referring to fig. 2, a first baffle 38 is fixedly connected to the top and the bottom of the inner wall of the wind box 17 on the side away from the conveyor 9, a second baffle 39 is fixedly connected to the top and the bottom of the inner wall of the wind box 17 on the side close to the conveyor 9, and the first baffle 38 is obliquely arranged.

As a technical optimization scheme of the invention, the first baffle 38 and the second baffle 39 are arranged, so that the flow direction of air can be guided, and the flow speed of the air is improved.

Referring to fig. 6, the heat insulation assembly 35 includes a bolt 351, a first threaded hole 352, an arc 353, a heat reflection plate 354 and a handle 355, wherein the arc 353 is disposed on the surface of the mounting plate 11, the bolt 351 is disposed on the inner side of the arc 353, the first threaded hole 352 is opened on the surface of the mounting plate 11, the arc 353 is fixedly mounted on the surface of the mounting plate 11 through the bolt 351 and the first threaded hole 352, the handle 355 is fixedly connected on the surface of the arc 353, and the heat reflection plate 354 is fixedly connected inside the arc 353.

As a technical optimization scheme of the present invention, the handle 355 is provided to facilitate the user to pull the arc-shaped plate 353, thereby avoiding the situation that the user cannot effectively pull the arc-shaped plate 353.

Referring to fig. 4, the front end and the rear end of the second pull rod 31 are fixedly connected with the blocking plate 40, the surface of the adjusting sleeve 342 is fixedly connected with the positioning plate 41, and one side of the positioning plate 41 close to the adjusting plate 341 is fixedly connected to the surface of the adjusting plate 341.

As a technical optimization scheme of the invention, the second pull rod 31 can be limited by arranging the baffle disc 40, so that the phenomenon that the second pull rod 31 is separated from the second rotating plate 30 is avoided, and the stability of the second pull rod 31 is improved.

Referring to fig. 7, a pressure plate 42 is transversely fixedly connected to the left side of the top of the inner cavity of the top box 2, a second threaded hole 43 is formed in the pressure plate 42, a pressure rod 44 is arranged on the left side of the top of the cover plate 3, a pressure plate 45 is fixedly connected to the top of the pressure rod 44, the bottom of the pressure plate 45 contacts with the top of the cover plate 3, the bottom end of the pressure rod 44 penetrates through the cover plate 3 and is in threaded connection with the second threaded hole 43, a filter screen 46 is fixedly connected to one side of the axial flow fan 14 close to the conveying device 9, a square opening 47 matched with the square sleeve 16 is formed in the surface of the guide plate 27, a screw sleeve 48 is sleeved on the left side of the surface of the.

As a technical optimization scheme of the invention, the cover plate 3 can be compressed by arranging the compression plate 42, the second threaded hole 43 and the compression rod 44, so that the stability of the cover plate 3 is improved, and a gap between the sealing gasket 6 and the top box 2 is reduced.

Referring to fig. 1, the method comprises the following steps:

s1: firstly, the motor 23 drives the bidirectional screw rod 24 to rotate, the bidirectional screw rod 24 drives the guide plates 27 to approach or separate from each other through the threaded sleeve 25, the distance between the guide plates 27 is reduced or increased, and S2 is executed after the proper distance is reached;

s2: the second pull rod 31 is pulled or pushed through the adjusting component 34, then the transmission component 33 drives the first rotating plate 28 and the second rotating plate 30 to rotate through the transmission plate 32, so that the first rotating plate 28 and the second rotating plate 30 are inclined, the heat preservation component 35 is started after the proper inclination is achieved, and S3 is executed;

s3: the conveying device 9 conveys the devices, the heating pipes 12 are used for heating the devices, the guide fan 18 and the axial flow fan 14 are used for circularly pumping hot air to heat and weld the devices, the hot air can heat the devices with different sizes, and finally the devices are discharged through the material port 22.

The working principle and the using process of the invention are as follows: when the device is used, a user firstly starts the motor 23, the motor 23 drives the bidirectional screw rod 24 to rotate, the bidirectional screw rod 24 drives the guide plates 27 to approach or separate from each other through the threaded sleeve 25 and the concave plate 26, the distance between the guide plates 27 is reduced or increased, the motor 23 is turned off after reaching a proper distance, then the rotary disc 344 can be rotated, the rotary disc 344 drives the screw rod 343 to rotate, the screw rod 343 drives the pull sleeve 346 to move through the bearing seat 345, the spring 347 can pull or push the pull rod two 31, then the electric cylinder 331 is started, the electric cylinder 331 drives the transmission plate 32 to move through the connecting plate two 333, the transmission plate 32 moves towards the side far away from the conveying device 9, the spring 347 moves the pull rod while moving, the rotary plate one 28 and the rotary plate two 30 rotate and incline, when the rotary plate one 28 and the rotary plate two 30 reach a proper inclination, the electric cylinder 331 is started and turned off and the heating pipe 12 is, The heat-insulation device comprises a diversion fan 18, an axial flow fan 14 and a conveying device 9, the conveying device 9 conveys devices, a heating pipe 12 heats the devices, the axial flow fan 14 blows air downwards, hot air is enabled to effectively heat the devices with different sizes through blocking of an air distribution plate 10 and a guide plate 27, a first rotating plate 28 and a second rotating plate 30 control the wind direction of the hot air, the heated air flows up and down through the diversion fan 18, meanwhile, a heat reflection plate 354 can keep the heat of the flowing hot air, the hot air is collected through a square sleeve 16 and an air guide sleeve 15, the hot air enters the inner portion of the axial flow fan 14 again to form circulation, and finally the devices are discharged through a material port 22, so that the effect of effectively adjusting and controlling the air is achieved.

In summary, the following steps: this reflow oven gas control system and control method, it is close to each other or keep away from to drive deflector 27 through two-way lead screw 24 and swivel nut 25 by motor 23, carry out the spacing of regulation, again by drive assembly 33 through adjusting part 34 the inclination of first deflector 28 and second deflector 30 is adjusted, make first deflector 28 and second deflector 30 of commentaries on classics can carry out different angle water conservancy diversion to the air current, last keep warm the heating to gas through heat preservation subassembly 35 by heating pipe 12, thereby possessed and to the advantage of the effective regulation and control of gas, it controls the gas flow direction only through single or two upper and lower fans to have solved current reflow oven, control effect is relatively poor, be not convenient for the user to carry out multi-angle regulation and control to the gas flow direction, simultaneously can't control the blowing interval of gas, and then can't carry out the welded problem to the device of equidimension not.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A reflow oven gas control system, includes a bottom box (1), its characterized in that: the top of the bottom box (1) is communicated with a top box (2), the top of the top box (2) is provided with a cover plate (3), the right side of the top of the cover plate (3) is fixedly connected with a limiting rod (4), the front side and the rear side of the surface of the limiting rod (4) are respectively sleeved with a limiting sleeve (5) in a sliding manner, the bottom of the limiting sleeve (5) is fixedly connected with the top of the top box (2), the bottom of the cover plate (3) is fixedly connected with a sealing gasket (6), the left top of the inner cavity of the top box (2) is provided with a scaling powder pipe (7), the bottom of the scaling powder pipe (7) is communicated with a branch pipe (8), a conveying device (9) is arranged in the bottom box (1), the top and the bottom of the conveying device (9) are respectively provided with an air distribution plate (10), the two sides of the inner cavity of the bottom box (1) and the two sides of the inner, a heating pipe (12) is arranged on one side, away from the conveying device (9), of the air distribution plate (10), the heating pipe (12) and the left end of the air distribution plate (10) are fixedly connected to the surface of the mounting plate (11), a supporting plate (13) is fixedly connected to the right side of the inner wall of the top box (2) and the right side of the inner wall of the bottom box (1), an axial flow fan (14) is fixedly connected to the inside of the supporting plate (13), an air guide sleeve (15) is communicated with the top of the axial flow fan (14), square sleeves (16) are communicated with the two sides of the air guide sleeve (15), an air box (17) is fixedly connected to the two sides of the inner wall of the bottom box (1), a flow guide fan (18) is arranged inside the air box (17), a first guide hole (19) is formed in the top and the bottom of one side, close to the conveying device (9), of the air box (17), a second guide hole (20), the vertical fixedly connected with in inside of bellows (17) and water conservancy diversion fan (18) cooperation round sleeve board (21) of using, material mouth (22) have all been seted up with the back in the front of under casing (1), conveyer (9) one side is kept away from in backup pad (13) right-hand member fixedly connected with motor (23), the two-way lead screw (24) of output fixedly connected with of motor (23), the equal threaded connection in both sides on two-way lead screw (24) surface has swivel nut (25), the fixed surface of swivel nut (25) is connected with concave plate (26), the one end that concave plate (26) are close to conveyer (9) runs through backup pad (13) and extends to the outside of backup pad (13), one side fixedly connected with deflector (27) that concave plate (26) are close to conveyer (9), deflector (27) cover is established on the surface of square sleeve (16), one side that wind distribution plate (10) is close to conveyer (9) articulates through the pin rod has changes board (28), the bottom sliding connection who changes board (28) has pull rod (29), the surperficial slip of pull rod (29) has cup jointed and is located change board two (30) of changing board (28) bottom, the fixed surface of pull rod (29) is connected with pull rod two (31), it has driving plate (32) to change one side that board two (30) are close to conveyer (9) and articulate through the pin rod, the surface of driving plate (32) is provided with drive assembly (33), one side that pull rod two (31) are close to bellows (17) is provided with adjusting part (34), the surface of mounting panel (11) is provided with heat preservation subassembly (35).

2. The reflow oven gas control system of claim 1, wherein: the transmission assembly (33) comprises an electric cylinder (331), a first connecting plate (332), a second connecting plate (333) and a connecting port (334), the electric cylinder (331) is arranged on one side of the supporting plate (13) far away from the conveying device (9), the first connecting plate (332) is fixedly connected with four corners of the surface of the electric cylinder (331), one side of the first connecting plate (332) close to the supporting plate (13) is fixedly connected with the surface of the supporting plate (13), the second connecting plate (333) is fixedly connected with four corners of the surface of an output shaft of the electric cylinder (331), one end of the second connecting plate (333) far away from the electric cylinder (331) penetrates through the supporting plate (13) and is fixedly connected with the surface of the transmission plate (32), and the connecting port (334) is arranged on the surface of the transmission plate (32.

3. The reflow oven gas control system of claim 1, wherein: the front end and the equal fixedly connected with reinforcing sleeve (36) in rear end of conveyer (9) both sides, one side fixed connection in the inside of under casing (1) that conveyer (9) were kept away from in reinforcing sleeve (36), the inside fixedly connected with set-square (37) of reinforcing sleeve (36).

4. The reflow oven gas control system of claim 1, wherein: the adjusting component (34) comprises an adjusting plate (341), an adjusting sleeve (342), a screw rod (343), a rotating disc (344), a bearing seat (345), a pulling sleeve (346) and a spring (347), the adjusting plate (341) is fixedly connected with the two sides of the inner cavity of the transmission plate (32), the adjusting sleeve (342) is fixedly connected inside the adjusting plate (341), the screw rod (343) is in threaded connection with the inner part of the adjusting sleeve (342), the rotating disc (344) is fixedly connected with one end of the screw rod (343) far away from the second pull rod (31), the bearing seat (345) is fixedly connected with one end of the screw rod (343) far away from the rotating disc (344), the pulling sleeve (346) is fixedly connected to one end of the bearing seat (345) far away from the screw rod (343), the spring (347) is fixedly connected to one end of the pull sleeve (346) far away from the screw rod (343), one end of the spring (347) far away from the pull sleeve (346) is fixedly connected to the surface of the second pull rod (31).

5. The reflow oven gas control system of claim 1, wherein: the top and the bottom of conveyer (9) one side are kept away from to bellows (17) inner wall are equal fixedly connected with baffle (38), bellows (17) inner wall is close to the top and the bottom of conveyer (9) one side are equal fixedly connected with baffle two (39), baffle one (38) are the slope setting.

6. The reflow oven gas control system of claim 1, wherein: the heat preservation subassembly (35) includes bolt (351), screw hole (352), arc (353), heat reflection board (354) and handle (355), arc (353) set up the surface at mounting panel (11), bolt (351) set up the inboard at arc (353), screw hole (352) are seted up on the surface of mounting panel (11), arc (353) are through bolt (351) and screw hole (352) fixed mounting on the surface of mounting panel (11), handle (355) fixed connection is on the surface of arc (353), heat reflection board (354) fixed connection is in the inside of arc (353).

7. The reflow oven gas control system of claim 4, wherein: the front end and the rear end of the second pull rod (31) are fixedly connected with a blocking disc (40), the surface of the adjusting sleeve (342) is fixedly connected with a positioning plate (41), and one side, close to the adjusting plate (341), of the positioning plate (41) is fixedly connected to the surface of the adjusting plate (341).

8. The reflow oven gas control system of claim 1, wherein: the top of the left side of the inner cavity of the top box (2) is transversely and fixedly connected with a pressing plate (42), a second threaded hole (43) is formed in the compression plate (42), a compression bar (44) is arranged on the left side of the top of the cover plate (3), the top of the pressure lever (44) is fixedly connected with a pressure plate (45), the bottom of the pressure plate (45) is contacted with the top of the cover plate (3), the bottom end of the pressure lever (44) penetrates through the cover plate (3) and is in threaded connection with the inside of the second threaded hole (43), a filter screen (46) is fixedly connected to one side of the axial flow fan (14) close to the conveying device (9), the surface of the guide plate (27) is provided with a square opening (47) matched with the square sleeve (16), a screw sleeve (48) is sleeved on the left side of the surface of the reciprocating screw (343) in a sliding way, one side of the screw rod sleeve (48) close to the support plate (13) is fixedly connected to the surface of the support plate (13).

9. The control method of the reflow oven gas control system according to claim 1, wherein: the method comprises the following steps:

s1: firstly, a motor (23) drives a bidirectional screw rod (24) to rotate, the bidirectional screw rod (24) drives guide plates (27) to approach or separate from each other through a threaded sleeve (25), the distance between the guide plates (27) is reduced or increased, and S2 is executed after the proper distance is reached;

s2: pulling or pushing the second pull rod (31) through the adjusting assembly (34), then driving the first rotating plate (28) and the second rotating plate (30) to rotate through the driving plate (32) by the driving assembly (33), enabling the first rotating plate (28) and the second rotating plate (30) to be inclined, starting the heat preservation assembly (35) after reaching a proper inclination, and executing S3;

s3: the conveying device (9) conveys the devices, the heating pipes (12) are used for heating, the diversion fan (18) and the axial flow fan (14) are used for circularly pumping hot air to heat and weld the devices, the hot air can heat the devices with different sizes, and finally the devices are discharged through the material port (22).