Overtemperature cooling fan for copper foil electric heating annealing furnace

Abstract

The invention relates to the technical field of electric heating annealing furnace cooling, in particular to an over-temperature cooling fan for a copper foil electric heating annealing furnace, which comprises a coil base, an annealing furnace heating cover is mounted at the upper end of the coil base, an inner separation cover is mounted at the upper end of the coil base and on the inner side of the annealing furnace heating cover, and an exhaust pipe is fixedly mounted in the coil base. An air inlet barrel is arranged at the upper end of the annealing furnace heating cover in a penetrating mode from top to bottom, a supporting plate and a connecting plate are sequentially and fixedly installed on the inner side of the air inlet barrel from top to bottom, an overtemperature cooling fan is fixedly installed at the upper end of the supporting plate, a motor shaft of the overtemperature cooling fan downwards sequentially penetrates through the supporting plate and the connecting plate, and fan blades are fixedly connected to the motor shaft in a sleeving mode. The cooling device for the electric heating annealing furnace has the beneficial effects that when the interior of the electric heating annealing furnace needs to be cooled, the air outlet amount can be adjusted according to needs through the arranged air outlet amount adjusting mechanism, and therefore the optimal cooling effect in the electric heating annealing furnace is accurately achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling of electric heating annealing furnaces, and specifically to an over-temperature cooling fan for a copper foil electric heating annealing furnace. Background Art

[0002] With the development of industrial production, as an important equipment for heat treatment of metal materials, the efficiency and performance of annealing furnaces directly affect the quality of materials and production costs. During the operation of electric heating annealing furnaces, cooling operations are required. Therefore, some electric heating annealing furnaces are equipped with over-temperature cooling fans. The over-temperature cooling fan is a key emergency heat dissipation device, which is used to forcibly cool down when the furnace temperature rises abnormally, preventing equipment damage or workpiece overheating and scrapping; when the temperature exceeds the preset safety value, the fan automatically starts and forcibly ventilates and dissipates heat; it stops running when the temperature drops. In existing over-temperature cooling fans, the blades and the rotor of the equipment are fixedly connected. Therefore, the power adjustment of the cooling fan can only be carried out from the motor, that is, by controlling the power of the motor to control the actual air volume output per unit time of the cooling fan to be larger, so as to achieve the effect of changing its cooling efficiency. However, the motor gears of over-temperature cooling fans are usually limited, so the adjustable range is relatively limited. In actual applications, the optimal cooling effect cannot be accurately achieved.

[0003] When cooling the inside of the furnace, cold air is blown into the electric heating annealing furnace through the over-temperature cooling fan to strengthen the fluidity of the gas inside the furnace, so as to meet the cooling requirements; however, when the existing electric heating annealing furnace is cooled down, the cold air blown out by the over-temperature cooling fan cannot make the gas inside the furnace flow sufficiently, easily causing local overcooling near the air inlet point, resulting in uneven temperature drop, directly affecting the annealing quality of the workpiece, and it is difficult to achieve the effect of uniform temperature drop. Summary of the Invention

[0004] The purpose of the present invention is to provide an over-temperature cooling fan for a copper foil electric heating annealing furnace to solve the problems raised in the above background art.

[0005] To achieve the above object, the present invention provides the following technical solution: an over-temperature cooling fan for a copper foil electric heating annealing furnace, including a furnace platform, an annealing furnace heating cover is installed at the upper end of the furnace platform, and an inner partition cover is installed inside the annealing furnace heating cover at the upper end of the furnace platform. A suction pipe is fixedly installed inside the furnace platform. An air inlet cylinder is arranged vertically downward through the upper end of the annealing furnace heating cover. A support plate and a connecting plate are fixedly installed in sequence from top to bottom inside the air inlet cylinder. A super-temperature cooling fan is fixedly installed at the upper end of the support plate. The motor shaft of the super-temperature cooling fan sequentially penetrates the support plate and the connecting plate downward. A fan blade is fixedly sleeved on the motor shaft. An air volume adjustment mechanism is installed on the connecting plate. A bottom plate is fixedly installed at the lower end of the air inlet cylinder. A plurality of air outlet mechanisms are installed in a circular array on the bottom plate. The upper end of the air outlet mechanism is connected to the connecting plate. A driving mechanism is installed at the lower end of the connecting plate. A plurality of transmission mechanisms are installed in a circular array at the lower end of the driving mechanism. The transmission mechanism is connected to the air outlet mechanism.

[0006] Preferably, a support cylinder is fixedly connected to the lower end of the bottom plate. The lower end of the support cylinder is fixedly connected to an upper cover plate. A plurality of air inlet slots are opened in a circular array at the lower end of the upper cover plate. A wind guiding hopper is fixedly sleeved on the outer side of the upper cover plate. The upper end of the inner partition cover is open. The upper cover plate covers the upper end of the inner partition cover. A conical reflux cover is fixedly sleeved on the outer side of the lower end of the inner partition cover.

[0007] Preferably, an annular groove is opened at the upper end of the connecting plate. A plurality of communication slots are opened in a circular array at the bottom of the annular groove. A sector-shaped movable groove is opened inside the annular groove at the upper end of the connecting plate. The sector-shaped movable groove communicates with the annular groove. A sector-shaped pressing plate is fixedly installed at the upper end of the connecting plate. The air volume adjustment mechanism includes an annular adjustment plate rotatably installed in the annular groove. A plurality of sector-shaped air slots and multiple groups of ventilation holes are opened in a circular array at the upper end of the annular adjustment plate. The plurality of sector-shaped air slots and multiple groups of ventilation holes are alternately distributed. A sector-shaped plate is fixedly connected to the inner side of the annular adjustment plate. An electric telescopic rod is arranged on the sector-shaped plate. The end of the inner rod of the electric telescopic rod is rotatably connected to the sector-shaped plate through a rotating shaft. The other end of the electric telescopic rod is rotatably connected to the connecting plate through a rotating shaft.

[0008] Preferably, the sector-shaped plate is rotatably connected to the sector-shaped movable groove. The annular adjustment plate is arranged at the lower end of the sector-shaped pressing plate, and the annular adjustment plate is in rotational contact with the lower end of the sector-shaped pressing plate.

[0009] Preferably, a plurality of through grooves are formed in the upper end of the bottom plate in an annular array, and sliding grooves are symmetrically formed at one end of the through grooves close to the inner side. The air outlet mechanism includes an air outlet pipe rotatably installed in the through grooves through a round shaft. Both the upper and lower ends of the air outlet pipe are open. A plurality of air guide plates are fixedly installed at equal intervals on the inner side of the air outlet pipe. A corrugated pipe is fixedly installed at the upper end of the air outlet pipe. The corrugated pipe can be telescoped and folded. The upper end of the corrugated pipe is fixedly connected to the lower end of the communication groove. The inner cavity of the corrugated pipe is communicated with the communication groove, and the inner cavity of the corrugated pipe is communicated with the inner cavity of the air outlet pipe. Connecting columns are symmetrically and fixedly connected to the two outer side walls of the corrugated pipe. The connecting columns are arranged above the round shaft. The air outlet pipe is connected to the transmission mechanism through the connecting columns.

[0010] Preferably, the driving mechanism includes a fixed circular plate arranged below the connecting plate. A connecting ring is fixedly connected to the upper end of the fixed circular plate. The upper end of the connecting ring is fixedly connected to the lower end of the connecting plate. An internal gear ring is arranged below the fixed circular plate. A plurality of sector-shaped limiting plates are annularly and snap-connected to the side surface of the fixed circular plate. The required parts of the plurality of sector-shaped limiting plates are fixedly connected to the upper end of the internal gear ring. A transmission gear is meshed with the inner side of the internal gear ring. The fixed circular plate is sleeved on the lower end of the motor shaft. A main gear is fixedly connected to the bottom of the motor shaft. The main gear is meshed with the transmission gear. The lower end of the internal gear ring is fixedly connected to an adjusting disc. An annular wave groove is formed in the lower end of the adjusting disc.

[0011] Preferably, the upper end of the internal gear ring is in rotational contact with the lower end of the fixed circular plate. The transmission gear is rotatably connected to the fixed circular plate through a rotating shaft. The lower end of the rotating shaft is rotatably connected to the adjusting disc. The sector-shaped limiting plate is rotatably connected to the fixed circular plate. The cross section of the sector-shaped limiting plate is L-shaped.

[0012] Preferably, the transmission mechanism includes a transmission block slidably installed in the through groove. A driving column is fixedly connected to the upper end of the transmission block. The driving column is inserted into the annular wave groove and is slidably connected to the annular wave groove. Sliders are symmetrically and fixedly connected to both sides of the transmission block. L-shaped plates are symmetrically and fixedly connected to both sides of the transmission block above the sliders. A limiting groove is formed at one end of the L-shaped plate away from the transmission block. The limiting groove is sleeved on the connecting column.

[0013] Preferably, the slider is slidably connected to the sliding groove, and the limiting groove is slidably connected to the connecting column.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The structure of the present invention is reasonably arranged and has strong functionality, and has the following advantages: 1. When it is necessary to cool the inside of the electric heating annealing furnace, the air outlet volume adjusting mechanism provided can adjust the air outlet volume according to the need, so as to accurately achieve the optimal cooling effect inside the electric heating annealing furnace.

[0015] 2. The motor shaft of the over-temperature cooling fan rotates, driving the fan blades to rotate, thereby blowing cold air downward. The cold air flows downward along the communication groove into the corrugated pipe, then flows downward along the corrugated pipe into the air outlet pipe, and finally blows downward from the lower end of the air outlet pipe. The cold air blown downward flows downward along the annular cavity between the inner side of the annealing furnace heating hood and the outer side of the inner partition hood, then flows obliquely upward along the conical return hood, and then flows upward along the outer side wall of the inner partition hood, thereby uniformly cooling the inner side of the annealing furnace heating hood and the outer side of the inner partition hood. When the cold air flowing upward reaches the inner side of the air guiding hopper, the returned cold air flows into the air inlet groove along the inner side of the air guiding hopper, causing the cold air to flow into the inner cavity of the inner partition hood along the air inlet groove. The cold air flows downward from the upper end of the inner cavity of the inner partition hood, and finally the air is extracted along the air extraction pipe, thus completing the cooling of the annealing furnace.

[0016] 3. The driving mechanism is operated by driving the motor shaft. The annular wave groove at the lower end of the adjusting disc in the driving mechanism rotates along multiple driving columns, causing the driving columns to move from the outside to the inside, then from the inside to the outside, and then from the outside to the inside, reciprocating in this way. The driving columns drive the transmission block to slide reciprocally along the through groove, and the transmission block drives the air outlet pipe to swing reciprocally through the L-shaped plate, so that the air outlet at the lower end of the air outlet pipe can swing reciprocally, enabling the cold air blown out by the air outlet pipe to be evenly and comprehensively blown on the inner part of the annealing furnace heating hood and the inner partition hood, thereby achieving uniform cooling of the electric heating annealing furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional view of the structure of the over-temperature cooling fan for the foil electric heating annealing furnace of the present invention; Figure 2 is a cross-sectional view of the structure of the over-temperature cooling fan for the foil electric heating annealing furnace of the present invention; Figure 3 is a cross-sectional view of the structure of the air inlet cylinder, upper cover plate, driving mechanism and air outlet mechanism of the present invention; Figure 4 is Figure 3 an enlarged schematic view of the structure at A in Figure 5 is a three-dimensional view of the air volume adjusting mechanism structure of the present invention; Figure 6 is a cross-sectional view of the air volume adjusting mechanism and driving mechanism structure of the present invention; Figure 7 is an exploded view of the connecting plate and air volume adjusting mechanism structure of the present invention; Figure 8 is a partial cross-sectional schematic view of the bottom plate of the present invention; Figure 9 is a bottom view of the adjusting disc and driving column structure of the present invention; Figure 10 is an exploded view of the driving mechanism structure of the present invention; Figure 11 This is an exploded view of the bottom plate, air outlet mechanism and transmission mechanism of the present invention.

[0018] In the figure: 1. Furnace platform; 11. Annealing furnace heating hood; 12. Inner partition hood; 13. Exhaust pipe; 2. Air inlet cylinder; 21. Support plate; 22. Connecting plate; 221. Annular groove; 222. Connecting groove; 223. Sector-shaped movable groove; 224. Sector-shaped pressing plate; 23. Bottom plate; 231. Through groove; 232. Slide groove; 24. Support cylinder; 25. Upper cover plate; 26. Air inlet groove; 27. Air guiding hopper; 28. Motor shaft; 29. Fan blade; 3. Annular adjusting plate; 31. Sector-shaped air duct; 32. Ventilation hole; 33. Sector-shaped plate; 34. Electric telescopic rod; 4. Fixed circular plate; 41. Connecting ring; 42. Inner gear ring; 43. Sector-shaped limiting plate; 44. Transmission gear; 45. Main gear; 46. Adjusting disc; 47. Annular wavy groove; 5. Air outlet pipe; 51. Air guiding plate; 52. Bellows; 53. Connecting column; 6. Transmission block; 61. Driving column; 62. Slide block; 63. L-shaped plate; 64. Limiting groove. Detailed implementation manners

[0019] 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.

[0020] Please refer to Figures 1 to 11 , the present invention provides a technical solution: an over-temperature cooling fan for a copper foil electric heating annealing furnace, including a furnace platform 1, an annealing furnace heating hood 11 is installed at the upper end of the furnace platform 1, an inner partition hood 12 is installed inside the annealing furnace heating hood 11 at the upper end of the furnace platform 1, an exhaust pipe 13 is fixedly installed inside the furnace platform 1, one end of the exhaust pipe 13 penetrates upward through the upper end of the furnace platform 1, the upper end of the exhaust pipe 13 is at the same horizontal plane as the upper end of the furnace platform 1, the other end of the exhaust pipe 13 penetrates through the side surface of the furnace platform 1 and extends to the outside, and a control valve is installed on the exhaust pipe 13 to control the opening and closing of the exhaust pipe 13. The end of the exhaust pipe 13 far from the furnace platform 1 is connected to the intake end of an air extractor through a connecting pipe; An air inlet cylinder 2 is vertically arranged through the upper end of the annealing furnace heating hood 11 from top to bottom. The lower end of the air inlet cylinder 2 extends downward into the inner cavity of the annealing furnace heating hood 11. At the same time, the lower end of the air inlet cylinder 2 is directly above the inner partition hood 12. A support plate 21 and a connecting plate 22 are fixedly installed inside the air inlet cylinder 2 in sequence from top to bottom. A super-temperature cooling fan is fixedly installed at the upper end of the support plate 21. The motor shaft 28 of the super-temperature cooling fan vertically penetrates through the support plate 21 and the connecting plate 22 downward. The motor shaft 28 is rotatably connected to the support plate 21 and the connecting plate 22 respectively. A fan blade 29 is fixedly sleeved on the motor shaft 28. The fan blade 29 is located between the support plate 21 and the connecting plate 22. An air volume adjustment mechanism is installed on the connecting plate 22. The lower end of the air inlet cylinder 2 is fixedly installed with a bottom plate 23. A plurality of air outlet mechanisms are annularly and arrayedly installed on the bottom plate 23. The upper end of the air outlet mechanism is connected to the connecting plate 22. A driving mechanism is installed at the lower end of the connecting plate 22. A plurality of transmission mechanisms are annularly and arrayedly installed at the lower end of the driving mechanism. The number of the air outlet mechanisms is the same as that of the transmission mechanisms. The driving mechanism is connected to the lower end of the motor shaft 28. The driving mechanism is arranged between the connecting plate 22 and the bottom plate 23. The transmission mechanism is connected to the air outlet mechanism.

[0021] A plurality of ventilation holes are penetrated through the support plate 21. In order to prevent the air flow from flowing outwards, one-way valves are arranged in the ventilation holes so that the air flow can only flow downward along the ventilation holes and will not flow outwards along the ventilation holes.

[0022] The temperature sensor is installed inside the annealing furnace heating hood 11 or inside the inner partition hood 12.

[0023] A dust-proof cover is installed at the upper end of the air inlet cylinder 2. The upper end of the air inlet cylinder 2 can be directly communicated with the external environment, or the upper end of the air inlet cylinder 2 can also be connected to one end of a cold air duct. The other end of the cold air duct is connected to the output end of a cold air fan.

[0024] Please refer to Figure 2 and Figure 3 The lower end of the bottom plate 23 is fixedly connected with a support cylinder 24. The lower end of the support cylinder 24 is fixedly connected with an upper cover plate 25. A plurality of air inlet grooves 26 are annularly and arrayedly opened at the lower end of the upper cover plate 25. A wind guide hopper 27 is fixedly sleeved on the outer side of the upper cover plate 25. The wind guide hopper 27 is a conical shell. The diameter of the lower end of the wind guide hopper 27 is larger than that of its upper end. The upper end of the wind guide hopper 27 is open. The wind guide hopper 27 is arranged outside the air inlet grooves 26. The upper end of the inner partition hood 12 is open. The upper cover plate 25 covers the upper end of the inner partition hood 12. A conical reflux hood is fixedly sleeved on the outer side of the lower end of the inner partition hood 12.

[0025] After the cold air blows downward along the air outlet mechanism, the cold air flows downward along the annular cavity between the inner side of the annealing furnace heating hood 11 and the outer side of the inner partition hood 12. When the cold air flows downward to the bottom of the annealing furnace heating hood 11, the cold air contacts the conical reflux hood; After the cold air impacts the conical reflux hood, the cold air flows obliquely upward along the conical reflux hood and then flows back upward along the outer side wall of the inner partition hood 12. At this time, the cold air can flow well along the inner side of the annealing furnace heating hood 11 and the outer side of the inner partition hood 12, so as to uniformly cool the inner side of the annealing furnace heating hood 11 and the outer side of the inner partition hood 12; When the upward flowing cold air reaches the inside of the air guiding hopper 27, the flowing back cold air flows into the air inlet groove 26 along the inside of the air guiding hopper 27, so that the cold air flows into the inner cavity of the inner partition hood 12 along the air inlet groove 26. The cold air flows downward from the upper end of the inner cavity of the inner partition hood 12, and finally the air is extracted along the air extraction pipe 13, thus completing the cooling of the inside of the annealing furnace.

[0026] Please refer to Figures 5 to 7 , an annular groove 221 is opened at the upper end of the connecting plate 22. A plurality of communication grooves 222 are arranged in an annular array at the bottom of the annular groove 221. The number of the communication grooves 222 is the same as the number of the air outlet mechanisms. A fan-shaped movable groove 223 is opened inside the annular groove 221 at the upper end of the connecting plate 22. The fan-shaped movable groove 223 is communicated with the annular groove 221. A fan-shaped pressing plate 224 is fixedly installed at the upper end of the connecting plate 22. One side of the fan-shaped pressing plate 224 extends above the annular groove 221; The air volume adjusting mechanism includes an annular adjusting plate 3 rotatably installed in the annular groove 221. A plurality of fan-shaped air grooves 31 and multiple groups of ventilation holes 32 are arranged in an annular array at the upper end of the annular adjusting plate 3. The multiple fan-shaped air grooves 31 and the multiple groups of ventilation holes 32 are alternately distributed, and each fan-shaped air groove 31 is arranged near a group of ventilation holes 32. Each group of ventilation holes 32 is arranged in a rectangular array on the annular adjusting plate 3. A fan-shaped plate 33 is fixedly connected to the inner side of the annular adjusting plate 3. An electric telescopic rod 34 is arranged on the fan-shaped plate 33. The end of the inner rod of the electric telescopic rod 34 is rotatably connected to the fan-shaped plate 33 through a rotating shaft, and the other end of the electric telescopic rod 34 is rotatably connected to the connecting plate 22 through a rotating shaft.

[0027] The fan-shaped plate 33 is rotatably connected to the fan-shaped movable groove 223. The annular adjusting plate 3 is arranged at the lower end of the fan-shaped pressing plate 224, and the annular adjusting plate 3 is in rotational contact with the lower end of the fan-shaped pressing plate 224.

[0028] When the inner rod of the electric telescopic rod 34 contracts, it drives the fan-shaped plate 33 to rotate along the fan-shaped movable groove 223. The fan-shaped plate 33 drives the annular adjusting plate 3 to rotate along the annular groove 221. Through the cooperation of the arranged annular groove 221 and the fan-shaped pressing plate 224, the annular adjusting plate 3 can rotate stably along the annular groove 221; When the annular adjusting plate 3 rotates, it drives the fan-shaped air grooves 31 and the ventilation holes 32 to rotate past the communication grooves 222 or move above the communication grooves 222.

[0029] When it is not necessary to cool down the annealing furnace, the sector air ducts 31 and the ventilation holes 32 are both not communicated with the communication groove 222, so that the sector air ducts 31 and the ventilation holes 32 are both staggered with the communication groove 222. At this time, the annular adjusting plate 3 seals the communication groove 222 to prevent the temperature in the annealing furnace from flowing out along the communication groove 222. When it is necessary to cool down the annealing furnace, rotate the sector air duct 31 or the ventilation hole 32 above the communication groove 222. When some of the ventilation holes 32 in a group are communicated with the communication groove 222, the air volume flowing downward along the communication groove 222 is small at this time. When all the ventilation holes 32 in a group are communicated with the communication groove 222, the air volume flowing downward along the communication groove 222 increases at this time. When the sector air duct 31 rotates above the communication groove 222, the air volume continues to increase. When the sector air duct 31 is completely communicated with the communication groove 222, the air volume flowing downward along the communication groove 222 is adjusted to the maximum at this time.

[0030] Please refer to Figure 3 、 Figure 4 、 Figure 8 and Figure 11 As shown in, a plurality of through grooves 231 are formed in the upper end of the bottom plate 23 in an annular array. The number of the through grooves 231 is the same as the number of the air outlet mechanisms. A sliding groove 232 is symmetrically formed at one end of the through groove 231 close to the inner side. The air outlet mechanism includes an air outlet pipe 5 rotatably installed in the through groove 231 through a round shaft. Both the upper and lower ends of the air outlet pipe 5 are open. A plurality of air guide plates 51 are fixedly installed at equal intervals inside the air outlet pipe 5. The air guide plates 51 are in a wave shape. A corrugated pipe 52 is fixedly installed at the upper end of the air outlet pipe 5. The corrugated pipe 52 can be telescoped and folded. The upper end of the corrugated pipe 52 is fixedly connected to the lower end of the communication groove 222. The inner cavity of the corrugated pipe 52 is communicated with the communication groove 222. The inner cavity of the corrugated pipe 52 is communicated with the inner cavity of the air outlet pipe 5. Two outer side walls of the corrugated pipe 52 are symmetrically and fixedly connected with connecting columns 53. The connecting columns 53 are arranged above the round shaft. The air outlet pipe 5 is connected to the transmission mechanism through the connecting columns 53.

[0031] The cold air flows downward along the communication groove 222 into the corrugated pipe 52, then flows downward along the inner cavity of the corrugated pipe 52 into the air outlet pipe 5, and flows out downward along the inner cavity of the air outlet pipe 5, so that the cold air flows downward along the inner side of the annealing furnace heating cover 11 and the outer side of the inner partition cover 12. When the cold air flows downward along the inner cavity of the air outlet pipe 5, the cold air flows downward along the air guide plates 51, thereby quantitatively guiding the cold air.

[0032] Please refer to Figure 3 、 Figure 6 and Figure 10, The driving mechanism includes a fixed circular plate 4 arranged below the connecting plate 22. The upper end of the fixed circular plate 4 is fixedly connected with a connecting ring 41. The upper end of the connecting ring 41 is fixedly connected with the lower end of the connecting plate 22. Below the fixed circular plate 4 is provided an internal gear ring 42. The side surface of the fixed circular plate 4 is annularly and arrayedly clamped with a plurality of sector-shaped limiting plates 43. The required parts of the plurality of sector-shaped limiting plates 43 are all fixedly connected with the upper end of the internal gear ring 42. Inside the internal gear ring 42 is meshed a transmission gear 44. The fixed circular plate 4 is sleeved on the lower end of the motor shaft 28. The motor shaft 28 is rotationally connected with the fixed circular plate 4. The bottom of the motor shaft 28 is fixedly connected with a main gear 45. The main gear 45 is meshed with the transmission gear 44. The lower end of the internal gear ring 42 is fixedly connected with an adjusting disc 46. The lower end of the adjusting disc 46 is provided with an annular wave groove 47.

[0033] The diameter of the main gear 45 is much smaller than the diameter of the internal gear ring 42, so that the main gear 45 needs to rotate multiple circles to drive the internal gear ring 42 to rotate one circle; The transmission gear 44 can be replaced with a speed reduction gear set. The rotation speed of the main gear 45 is reduced by the speed reduction gear set and then drives the internal gear ring 42 to rotate, so that the rotation speed of the internal gear ring 42 is much lower than the rotation speed of the main gear 45.

[0034] The upper end of the internal gear ring 42 is in rotational contact with the lower end of the fixed circular plate 4. The transmission gear 44 is rotationally connected with the fixed circular plate 4 through a rotating shaft. The lower end of the rotating shaft is rotationally connected with the adjusting disc 46. The sector-shaped limiting plate 43 is rotationally connected with the fixed circular plate 4. The cross section of the sector-shaped limiting plate 43 is L-shaped.

[0035] The motor shaft 28 drives the main gear 45 to rotate. The main gear 45 drives the transmission gear 44 to rotate. The transmission gear 44 drives the internal gear ring 42 to rotate. The internal gear ring 42 drives the sector-shaped limiting plate 43 to rotate along the fixed circular plate 4, so that the internal gear ring 42 can rotate stably. The internal gear ring 42 drives the adjusting disc 46 to rotate synchronously.

[0036] Please refer to Figure 4 , Figure 8 and Figure 11 , The transmission mechanism includes a transmission block 6 slidably installed in the through groove 231. The upper end of the transmission block 6 is fixedly connected with a driving column 61. The driving column 61 is inserted into the annular wave groove 47 and is slidably connected with the annular wave groove 47. On both sides of the transmission block 6 are symmetrically fixedly connected with sliding blocks 62. On both sides of the transmission block 6 and above the sliding blocks 62 are symmetrically fixedly connected with L-shaped plates 63. The end of the L-shaped plate 63 far from the transmission block 6 is provided with a limiting groove 64. The two L-shaped plates 63 are symmetrically distributed on both sides of the air outlet pipe 5. The limiting groove 64 is sleeved on the connecting column 53.

[0037] The sliding block 62 is slidably connected with the sliding groove 232. The limiting groove 64 is slidably connected with the connecting column 53.

[0038] The drive posts 61 in multiple drive mechanisms are all inserted into the annular wavy groove 47. The annular wavy groove 47 is provided with multiple protrusions facing outward and multiple recesses facing inward. The multiple protrusions and multiple recesses are arranged in an annular array, and the multiple protrusions and multiple recesses are alternately distributed; The annular wavy groove 47 is formed by splicing multiple V-shaped grooves in an annular array. The multiple drive posts 61 are distributed in the annular wavy groove 47 in an annular array; When a drive post 61 is at a protrusion of the annular wavy groove 47, the remaining several drive posts 61 are simultaneously at other protrusions of the annular wavy groove 47; when a drive post 61 is at a recess of the annular wavy groove 47, the remaining several drive posts 61 are simultaneously at other recesses of the annular wavy groove 47.

[0039] When the adjustment disc 46 rotates, the annular wavy groove 47 opened at its lower end rotates synchronously, and the annular wavy groove 47 rotates along the multiple drive posts 61; When the multiple protrusions of the annular wavy groove 47 respectively rotate to contact the multiple drive posts 61, at this time the annular wavy groove 47 pushes the multiple drive posts 61 to move outward. The annular wavy groove 47 continues to rotate. At this time, the inclined groove of the annular wavy groove 47 slides along the drive post 61. By the annular wavy groove 47 pushing the drive post 61, it gradually moves inward until the multiple recesses of the annular wavy groove 47 respectively contact the multiple drive posts 61. At this time, the drive post 61 moves to the innermost side; During the process of the drive post 61 moving from the outside to the inside, the drive post 61 drives the transmission block 6 to slide along the through groove 231, and the transmission block 6 drives the slider 62 to slide along the sliding groove 232, so that the transmission block 6 can move stably; The transmission block 6 drives the L-shaped plate 63 to move from the outside to the inside. During the process of the L-shaped plate 63 moving from the outside to the inside, the limiting groove 64 on it slides along the connecting post 53. At the same time, the limiting groove 64 drives the connecting post 53 to rotate and move inward. The connecting post 53 drives the upper end of the air outlet pipe 5 to rotate inward, and at the same time the lower end of the air outlet pipe 5 tilts outward. Furthermore, the air outlet of the air outlet pipe 5 tilts outward and moves, changing the air outlet of the air outlet pipe 5.

[0040] When the annular wavy groove 47 continues to rotate, the inclined groove of the annular wavy groove 47 slides along the drive post 61. At this time, the annular wavy groove 47 pushes the drive post 61 to gradually move outward until the multiple protrusions of the annular wavy groove 47 respectively contact the multiple drive posts 61. At this time, the drive post 61 moves to the outermost side; During the process of the driving column 61 moving from inside to outside, the driving column 61 drives the transmission block 6 to slide outward along the through groove 231. The transmission block 6 drives the L-shaped plate 63 to move from inside to outside. During the process of the L-shaped plate 63 moving from inside to outside, the limiting groove 64 on it drives the connecting column 53 to rotate and move outward. The connecting column 53 drives the upper end of the air outlet pipe 5 to rotate outward, and at the same time, the lower end of the air outlet pipe 5 rotates inward, thereby causing the air outlet of the air outlet pipe 5 to rotate downward and changing the air outlet of the air outlet pipe 5. Through the continuous rotation of the annular wavy groove 47, the driving column 61 moves from outside to inside, then from inside to outside, and then from outside to inside, and so on. At this time, the driving column 61 drives the transmission block 6 to reciprocally slide along the through groove 231. The transmission block 6 drives the air outlet pipe 5 to reciprocally swing through the L-shaped plate 63, so that the air outlet at the lower end of the air outlet pipe 5 can reciprocally swing, enabling the cold air blown out by the air outlet pipe 5 to evenly and comprehensively blow on the inside of the annealing furnace heating hood 11 and the inner partition hood 12, thereby achieving uniform cooling inside the electric heating annealing furnace.

[0041] Working principle: When it is necessary to cool the inside of the electric heating annealing furnace, it is adjusted through the set air volume adjustment mechanism, and the air volume is adjusted according to needs. Through the rotation of the motor shaft 28 of the over-temperature cooling fan, the motor shaft 28 drives the fan blade 29 to rotate, thereby blowing the cold air downward. The cold air flows downward along the communication groove 222 into the corrugated pipe 52. The cold air flows downward along the corrugated pipe 52 into the air outlet pipe 5, and finally the cold air blows downward from the lower end of the air outlet pipe 5. The cold air blown downward flows downward along the annular cavity between the inner side of the annealing furnace heating hood 11 and the outer side of the inner partition hood 12. When the cold air flows to the bottom of the annealing furnace heating hood 11, the cold air impacts the conical return hood, and the cold air flows obliquely upward along the conical return hood and then flows upward along the outer side wall of the inner partition hood 12. At this time, the cold air can flow well along the inner side of the annealing furnace heating hood 11 and the outer side of the inner partition hood 12, thereby uniformly cooling the inner side of the annealing furnace heating hood 11 and the outer side of the inner partition hood 12. When the cold air flowing upward flows to the inside of the air guiding hopper 27, the returning cold air flows into the air inlet groove 26 along the inside of the air guiding hopper 27, enabling the cold air to flow into the inner cavity of the inner partition hood 12 along the air inlet groove 26. The cold air flows downward from the upper end of the inner cavity of the inner partition hood 12, and finally the air is drawn out along the air extraction pipe 13, thereby completing the cooling of the inside of the annealing furnace.

[0042] When the motor shaft 28 rotates, it drives the main gear 45 to rotate. The main gear 45 drives the transmission gear 44 to rotate, the transmission gear 44 drives the internal gear ring 42 to rotate, and the internal gear ring 42 drives the adjustment disc 46 to rotate synchronously. When the adjustment disc 46 rotates, the annular wave groove 47 formed at its lower end rotates synchronously. The annular wave groove 47 rotates along a plurality of drive posts 61, causing the drive posts 61 to move from the outside to the inside, then from the inside to the outside, and then from the outside to the inside again, reciprocating in this way; The drive post 61 drives the transmission block 6 to reciprocally slide along the through groove 231. The transmission block 6 drives the air outlet pipe 5 to swing reciprocally through the L-shaped plate 63, so that the air outlet at the lower end of the air outlet pipe 5 can swing reciprocally, enabling the cold air blown out by the air outlet pipe 5 to evenly and comprehensively blow on the inside of the annealing furnace heating hood 11 and the internal partition hood 12, thereby achieving uniform cooling inside the electric heating annealing furnace.

[0043] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood 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. Super-temperature cooling fan for copper foil electric heating annealing furnace, including a furnace platform (1), an annealing furnace heating cover (11) is installed at the upper end of the furnace platform (1), and an inner partition cover (12) is installed inside the annealing furnace heating cover (11) at the upper end of the furnace platform (1), characterized in that: A suction pipe (13) is fixedly installed inside the furnace platform (1). An air inlet cylinder (2) is arranged vertically downward through the upper end of the annealing furnace heating hood (11). A support plate (21) and a connecting plate (22) are fixedly installed inside the air inlet cylinder (2) in sequence from top to bottom. A super-temperature cooling fan is fixedly installed at the upper end of the support plate (21). The motor shaft (28) of the super-temperature cooling fan penetrates through the support plate (21) and the connecting plate (22) vertically downward in sequence. A fan blade (29) is fixedly sleeved on the motor shaft (28). An air volume adjusting mechanism is installed on the connecting plate (22). A bottom plate (23) is fixedly installed at the lower end of the air inlet cylinder (2). A plurality of air outlet mechanisms are installed on the bottom plate (23) in an annular array. The upper end of the air outlet mechanism is connected to the connecting plate (22). A driving mechanism is installed at the lower end of the connecting plate (22). A plurality of transmission mechanisms are installed at the lower end of the driving mechanism in an annular array. The transmission mechanism is connected to the air outlet mechanism.

2. The super-temperature cooling fan for the copper foil electrothermal annealing furnace according to claim 1, wherein: A support cylinder (24) is fixedly connected to the lower end of the bottom plate (23). An upper cover plate (25) is fixedly connected to the lower end of the support cylinder (24). A plurality of air inlet slots (26) are opened in an annular array at the lower end of the upper cover plate (25). A wind guiding hopper (27) is fixedly sleeved on the outer side of the upper cover plate (25). The upper end of the inner partition cover (12) is open. The upper cover plate (25) covers the upper end of the inner partition cover (12). A conical reflux cover is fixedly sleeved on the outer side of the lower end of the inner partition cover (12).

3. The over-temperature cooling fan for the copper foil electric heating annealing furnace according to claim 1, wherein: An annular groove (221) is opened at the upper end of the connecting plate (22). A plurality of communication slots (222) are opened in an annular array at the bottom of the annular groove (221). A sector-shaped movable groove (223) is opened inside the annular groove (221) at the upper end of the connecting plate (22). The sector-shaped movable groove (223) communicates with the annular groove (221). A sector-shaped pressing plate (224) is fixedly installed at the upper end of the connecting plate (22). The air volume adjusting mechanism includes an annular adjusting plate (3) rotatably installed in the annular groove (221). A plurality of sector-shaped air slots (31) and multiple groups of ventilation holes (32) are opened in an annular array at the upper end of the annular adjusting plate (3). The multiple sector-shaped air slots (31) and the multiple groups of ventilation holes (32) are alternately distributed. A sector-shaped plate (33) is fixedly connected to the inner side of the annular adjusting plate (3). An electric telescopic rod (34) is arranged on the sector-shaped plate (33). The end of the inner rod of the electric telescopic rod (34) is rotatably connected to the sector-shaped plate (33) through a rotating shaft. The other end of the electric telescopic rod (34) is rotatably connected to the connecting plate (22) through a rotating shaft.

4. The super-temperature cooling fan for the copper foil electrothermal annealing furnace according to claim 3, wherein: The sector-shaped plate (33) is rotatably connected to the sector-shaped movable groove (223). The annular adjusting plate (3) is arranged at the lower end of the sector-shaped pressing plate (224), and the annular adjusting plate (3) is in rotational contact with the lower end of the sector-shaped pressing plate (224).

5. The super-temperature cooling fan for the copper foil electrothermal annealing furnace according to claim 1, wherein: A plurality of through grooves (231) are formed in the upper end of the bottom plate (23) in an annular array. A chute (232) is symmetrically formed at one end of the through groove (231) close to the inner side. The air outlet mechanism includes an air outlet pipe (5) rotatably installed in the through groove (231) through a round shaft. Both the upper and lower ends of the air outlet pipe (5) are open. A plurality of air guide plates (51) are fixedly installed at equal intervals on the inner side of the air outlet pipe (5). A corrugated pipe (52) is fixedly installed at the upper end of the air outlet pipe (5). The corrugated pipe (52) can be telescoped and folded. The upper end of the corrugated pipe (52) is fixedly connected to the lower end of the communication groove (222). The inner cavity of the corrugated pipe (52) is communicated with the communication groove (222). The inner cavity of the corrugated pipe (52) is communicated with the inner cavity of the air outlet pipe (5). Two outer side walls of the corrugated pipe (52) are symmetrically and fixedly connected with connecting columns (53). The connecting columns (53) are arranged above the round shaft. The air outlet pipe (5) is connected to the transmission mechanism through the connecting columns (53).

6. The over-temperature cooling fan for the copper foil electrothermal annealing furnace according to claim 1, wherein: The driving mechanism includes a fixed circular plate (4) arranged below the connecting plate (22). A connecting ring (41) is fixedly connected to the upper end of the fixed circular plate (4). The upper end of the connecting ring (41) is fixedly connected to the lower end of the connecting plate (22). An internal gear ring (42) is arranged below the fixed circular plate (4). A plurality of sector-shaped limiting plates (43) are annularly and snap-connected to the side surface of the fixed circular plate (4). The upper ends of the plurality of sector-shaped limiting plates (43) are fixedly connected to the upper end of the internal gear ring (42). A transmission gear (44) is meshed with the inner side of the internal gear ring (42). The fixed circular plate (4) is sleeved on the lower end of the motor shaft (28). A main gear (45) is fixedly connected to the bottom of the motor shaft (28). The main gear (45) is meshed with the transmission gear (44). The lower end of the internal gear ring (42) is fixedly connected to an adjusting disc (46). An annular wave groove (47) is formed in the lower end of the adjusting disc (46).

7. The super-temperature cooling fan for the copper foil electrothermal annealing furnace according to claim 6, wherein: The upper end of the internal gear ring (42) is in rotational contact with the lower end of the fixed circular plate (4). The transmission gear (44) is rotatably connected to the fixed circular plate (4) through a rotating shaft. The lower end of the rotating shaft is rotatably connected to the adjusting disc (46). The sector-shaped limiting plate (43) is rotatably connected to the fixed circular plate (4). The cross section of the sector-shaped limiting plate (43) is L-shaped.

8. The super-temperature cooling fan for a copper foil electrothermal annealing furnace according to claim 5, characterized in that: The transmission mechanism includes a transmission block (6) slidably installed in the through groove (231). A driving column (61) is fixedly connected to the upper end of the transmission block (6). The driving column (61) is inserted into the annular wave groove (47) and is slidably connected to the annular wave groove (47). Sliders (62) are symmetrically and fixedly connected to both sides of the transmission block (6). L-shaped plates (63) are symmetrically and fixedly connected to both sides of the transmission block (6) above the sliders (62). A limiting groove (64) is formed at one end of the L-shaped plate (63) away from the transmission block (6). The limiting groove (64) is sleeved on the connecting column (53).

9. The super-temperature cooling fan for the copper foil electrothermal annealing furnace according to claim 8, wherein: The slider (62) is slidably connected to the chute (232). The limiting groove (64) is slidably connected to the connecting column (53).

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