A rapid curing device for epoxy covering film

Abstract

The invention belongs to the technical field of epoxy covering film curing, and discloses an epoxy covering film rapid curing device, comprising a conveying body, on which two rollers are rotatably connected, one of the rollers being fitted and connected with a glass fiber cloth on its outer wall, and the other roller being fixedly connected with a power source on one end; after the hollow metal roller absorbs the heat of the high-temperature gas, the roller body of the hollow metal roller itself is rapidly heated and heated, and the outer wall of the bottom end of the glass fiber cloth can be ironed at high temperature, so that the heat is transferred to the epoxy covering film material, which can accelerate the curing speed and improve the utilization of heat resources, avoiding a large amount of resource waste; when the hollow metal roller rotates, it can also drive the synchronous belt to rotate and transmit, thereby driving the rotating rod and the wind wheel cylinder to rotate synchronously on the ear plate to generate cooling gas, and the epoxy covering film material after being thermally cured by the hollow metal roller and the slot box is subjected to secondary curing of cold air.

Description

Technical Field

[0001] The invention belongs to the technical field of epoxy covering film curing, in particular to a device for rapid curing of epoxy covering film. Background Art

[0002] Epoxy covering film is mainly composed of epoxy resin, polyimide film, acrylate adhesive and other materials. Among them, epoxy resin is used as the main adhesive, polyimide film is used as the base material, and acrylate adhesive is used to improve the bonding strength. Epoxy covering film has excellent electrical conductivity, high bonding strength, good dimensional stability, low fluidity, and good processing performance. At the same time, it also has good solder resistance, chemical resistance and solvent resistance. After the epoxy resin is mixed with the curing agent, a chemical reaction will occur. The process is achieved by relying on the active groups on the molecular structure of the synthetic resin and the curing agent, so that the epoxy covering film is transformed from a low molecular state to a high molecular state. The cured epoxy covering film has excellent durability, decorativeness and construction performance, and can effectively resist acid and alkali corrosion, salt spray erosion and mechanical wear, greatly extending the service life of the substrate. Therefore, curing is an indispensable step in the preparation process of epoxy covering film, which ensures that the covering film has the required physical and chemical properties to meet the requirements of various application scenarios;

[0003] The curing of epoxy covering film is usually achieved by thermal curing, that is, after the epoxy resin monomer and the curing agent are evenly mixed, they are cured for a long time at a relatively high temperature. In the prior art, the epoxy material is also generally applied to the surface of the rolled glass fiber cloth, and then the glass fiber cloth is slowly conveyed in a positioned manner through a conveying device. The surface epoxy material is evenly applied during the conveying process, and then it is cured after passing through the drying box on the conveying device. Since the glass fiber cloth needs to pass through the drying box to achieve continuous curing and molding of the epoxy covering film, this causes the drying box to be unable to be sealed, resulting in large temperature fluidity and inability to continuously maintain the temperature, making the thermal curing efficiency of the epoxy covering film low, and at the same time, part of the heat cannot be used, resulting in a waste of resources. Summary of the invention

[0004] In order to solve the problems raised in the above background technology, the present invention provides a rapid curing device for epoxy covering film.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an epoxy covering film rapid curing device, comprising a conveying body, wherein two rollers are connected to the conveying body for rotation, a glass fiber cloth is fitted and connected to the outer wall of one roller, and a power source is fixedly connected to one end of the other roller, and the outer wall of one end of the power source is fixedly connected to the outer wall of one end of the conveying body, the conveying body is provided with a curing part, the curing part includes a forward and reverse rotating motor, the outer wall of one end of the motor is fixedly connected to the outer wall of one end of the conveying body, a hollow metal roller is also fixedly connected to the rotating shaft of the motor, the surface of the hollow metal roller can be fitted and slidably connected to the outer wall of one end of the glass fiber cloth, the outer wall of the conveying body is also fixedly connected, and a heating high-temperature plate for curing the epoxy material applied on the surface of the glass fiber cloth is fixedly connected to the inner wall of the grooved plate box, so that it is cured to produce an epoxy covering film, and the hollow metal roller is provided with a secondary curing structure for accelerating the curing efficiency of the epoxy covering film.

[0006] Preferably, the secondary solidification structure includes an annular cylinder fixedly connected to one end of the hollow metal roller, and a plurality of air holes are formed around a section of the roller body of the hollow metal roller, and a turntable is fixedly connected to the outer wall of the annular cylinder.

[0007] Preferably, a turning handle is fixedly connected to the side wall at one end of the turntable, a rectangular slot plate is slidably clamped on the outer wall of the turning handle, vertical rods are fixedly connected to the upper and lower side walls of the rectangular slot plate, a limiting plate is slidably connected to the rod body of the vertical rod below, and the outer wall of one end of the limiting plate is fixedly connected to the outer wall of the conveying body.

[0008] Preferably, a bellows is fixedly connected to the rod body of the upper vertical rod, a bent support plate is fixedly connected to the top of the bellows, and one side of the bottom end of the bent support plate is fixedly connected to the top side wall of the trough box.

[0009] Preferably, a straight air pipe is fixedly connected to one end of the bellows near the top, and a one-way valve is fixedly connected to the pipe body of the straight air pipe for controlling the one-way flow of hot gas.

[0010] Preferably, an arc angle air pipe is fixedly connected to one end of the bellows near the bottom, a telescopic air pipe is fixedly connected to the other end of the arc angle air pipe, and a movable ring is fixedly connected to the bottom end of the telescopic air pipe.

[0011] Preferably, the inner wall of the movable sleeve is fixedly connected to a section of the roller body of the hollow metal roller, and an air plug can be intermittently and tightly connected in the inner wall of the ring tube.

[0012] Preferably, elastic telescopic parts are fixedly connected to the outer walls on both sides of one end of the air plug, and T-shaped blocks are fixedly connected to the other ends of the two elastic telescopic parts. A T-shaped ring groove is arranged around the outer wall of one end of the turntable and can be slidably engaged with the two T-shaped blocks.

[0013] Preferably, a synchronous belt is fixedly connected to the roller body of the hollow metal roller, a rotating rod is fixedly connected to the other side of the synchronous belt, and an ear plate is movably sleeved on the other end of the rotating rod.

[0014] Preferably, the bottom end of the ear plate is fixedly connected to the top side wall of the conveyor body, and a wind wheel cylinder is fixedly connected to the outer wall of the rotating rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The invention uses the suction force generated by the telescopic air pipe to drive the air plug near the telescopic air pipe in the hollow metal roller, so that the air plug squeezes the elastic telescopic parts installed on both sides to separate from the ring cylinder and enters the inner cavity of the hollow metal roller under the drive of negative pressure. That is, the hot gas previously entered in the hollow metal roller will flow out through the ring cylinder in large quantities, and when the turntable rotates one circle to drive the vertical rod to move upward, it will squeeze the bellows so that the high-temperature gas sucked inside is introduced into the movable sleeve ring through the telescopic air pipe, and then through the movable sleeve ring rotating inside but not outside, the high-temperature gas can be introduced into the rotating hollow metal roller from multiple air holes. After the hollow metal roller absorbs the heat of the high-temperature gas, the roller body of the hollow metal roller itself quickly heats up and becomes hot. Therefore, when the glass fiber cloth slides past the outer wall of the hollow metal roller, the outer wall of the bottom end of the glass fiber cloth can be ironed at high temperature, so that it can transfer heat to the epoxy covering film material on the top surface of the glass fiber cloth, thereby accelerating its curing speed and improving the utilization of heat resources, thereby avoiding a large amount of resource waste.

[0017] When the hollow metal roller of the present invention rotates, it can also drive the synchronous belt to rotate, thereby driving the rotating rod and the wind wheel cylinder to rotate synchronously on the ear plate. The wind wheel cylinder under rotating operation will immediately generate cooling gas, and perform secondary cold air curing on the epoxy covering film material after heat curing through the hollow metal roller and the grooved plate box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall planar structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the overall cross-sectional structure of the hollow metal roller of the present invention;

[0021] Figure 4It is a schematic diagram of the overall structure of the curing part of the present invention;

[0022] Figure 5 It is a schematic diagram of the partial cross-sectional structure of the curing part of the present invention;

[0023] Figure 6 It is a schematic diagram of the partial split structure of the curing part of the present invention;

[0024] Figure 7 For the present invention Figure 4 A schematic diagram of the partially enlarged structure at center A;

[0025] Figure 8 For the present invention Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0026] In the figure:

[0027] 1. Conveyor body; 11. Roller; 12. Glass fiber cloth;

[0028] 2. Curing unit; 21. Motor; 22. Hollow metal roller; 23. Slot box; 2301. Air hole; 24. Heating high temperature plate; 2401. Ring cylinder; 25. Turntable; 26. Turn handle; 27. Rectangular slot plate; 28. Vertical rod; 29. ​​Limit plate; 230. Bellows; 231. Bending support plate; 232. Straight air pipe; 233. One-way valve; 234. Arc angle air pipe; 235. Telescopic air pipe; 236. Movable sleeve; 237. Air plug; 238. Elastic telescopic part; 239. T-ring slide; 240. Synchronous belt; 241. Turn rod; 242. Ear plate; 243. Wind wheel cylinder. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figures 1 to 8As shown, the present invention provides an epoxy covering film rapid curing device, including a conveyor body 1, two rollers 11 are connected to the conveyor body 1 for rotation, a glass fiber cloth 12 is attached to the outer wall of one roller 11, a power source is fixedly connected to one end of the other roller 11, and the outer wall of one end of the power source is fixedly connected to the outer wall of one end of the conveyor body 1, and a curing part 2 is provided on the conveyor body 1, and the curing part 2 includes a motor 21 of a forward and reverse rotation type, and the outer wall of one end of the motor 21 is fixedly connected to the outer wall of one end of the conveyor body 1. The outer wall of the conveyor body 1 is fixedly connected to the outer wall, and a hollow metal roller 22 is also fixedly connected to the rotating shaft of the motor 21. The surface of the hollow metal roller 22 can be slidably connected to the outer wall of one end of the glass fiber cloth 12. A groove box 23 is also fixedly connected to the outer wall of the conveyor body 1. A heating high-temperature plate 24 for curing the epoxy material applied on the surface of the glass fiber cloth 12 is fixedly connected to the inner wall of the groove box 23, so that it is cured to produce an epoxy covering film. The hollow metal roller 22 is provided with a secondary curing structure for accelerating the curing efficiency of the epoxy covering film.

[0031] The above scheme is adopted: first, the power source on the conveying body 1 in the prior art is started, and the power source is specifically a motor, and the glass fiber cloth 12 that has passed through the two rollers 11 and the hollow metal roller 22 in advance is transmitted. During the transmission process, the unloading structure in the prior art is used to evenly apply the epoxy covering film material on the surface of the glass fiber cloth 12. At the same time, the material is cured at high temperature in real time through the heating high-temperature plate 24 installed in the groove box 23, and the hollow metal roller 22 is driven to rotate synchronously by starting the motor 21.

[0032] The secondary solidification structure includes a ring cylinder 2401 fixedly connected to one end of a hollow metal roller 22, and a plurality of air holes 2301 are opened around a section of the roller body of the hollow metal roller 22. A turntable 25 is fixedly connected to the outer wall of the ring cylinder 2401, and a rotating handle 26 is fixedly connected to the side wall of one end of the turntable 25. A rectangular groove plate 27 is slidably connected to the outer wall of the rotating handle 26. Vertical rods 28 are fixedly connected to the upper and lower side walls of the rectangular groove plate 27. A limiting plate 29 is slidably connected to the rod body of the lower vertical rod 28, and the outer wall of one end of the limiting plate 29 is fixedly connected to the outer wall of the conveying body 1.

[0033] The above scheme is adopted: under the rotational movement of the hollow metal roller 22, the ring cylinder 2401, the turntable 25 and the handle 26 will be driven to rotate synchronously, and the rotating handle 26 can fit the inner wall of the rectangular slot plate 27 in a limited manner for smoothing, thereby driving the rectangular slot plate 27 together with the two vertical rods 28 to move up and down at the same time, and the limit plate 29 installed on the vertical rod 28 can play a horizontal guiding role for the rectangular slot plate 27 moving up and down.

[0034] A bellows 230 is fixedly connected to the rod body of the upper vertical rod 28, a bent support plate 231 is fixedly connected to the top of the bellows 230, one side of the bottom end of the bent support plate 231 is fixedly connected to the top side wall of the slot box 23, a straight air pipe 232 is fixedly connected to the end of the bellows 230 near the top, a one-way valve 233 is fixedly connected to the pipe body of the straight air pipe 232 for controlling the one-way flow of hot gas, an arc angle air pipe 234 is fixedly connected to the end of the bellows 230 near the bottom, a telescopic air pipe 235 is fixedly connected to the other end of the arc angle air pipe 234, a movable collar 236 is fixedly connected to the bottom end of the telescopic air pipe 235, and the inner wall of the movable collar 236 is fixedly connected to a section of the roller body of the hollow metal roller 22.

[0035] By adopting the above scheme, the driven vertical rod 28 can pull the bellows 230 installed under the bent support plate 231 when moving downward, so as to generate negative pressure suction, and suck the hot air away from the glass fiber cloth 12 in the inner wall of the top of the groove box 23 through the straight air pipe 232, and at the same time, a small amount of hot air previously input into the hollow metal roller 22 is sucked through the telescopic air pipe 235, so that the hot air of the two is mixed.

[0036] An air plug 237 is intermittently and tightly connected to the inner wall of the ring cylinder 2401, and elastic telescopic parts 238 are fixedly connected to the outer walls on both sides of one end of the air plug 237, and the other ends of the two elastic telescopic parts 238 are fixedly connected to T-shaped blocks. A T-shaped ring groove 239 that can be slidably engaged with the two T-shaped blocks is arranged around the outer wall of one end of the turntable 25. A synchronous belt 240 is also specifically fixedly connected to the roller body of the hollow metal roller 22, and a rotating rod 241 is fixedly connected to the other side of the synchronous belt 240. An ear plate 242 is movably sleeved on the other end of the rotating rod 241, and the bottom end of the ear plate 242 is fixedly connected to the top side wall of the conveyor body 1, and a wind wheel cylinder 243 is fixedly connected to the outer wall of the rotating rod 241.

[0037] The above scheme is adopted: the suction force generated by the telescopic air pipe 235 will drive the air plug 237 near the telescopic air pipe 235 in the hollow metal roller 22, so that the air plug 237 squeezes the elastic telescopic parts 238 installed on both sides to separate from the ring tube 2401, and enters the inner cavity of the hollow metal roller 22 under the drive of negative pressure. That is, the hot gas that has entered the hollow metal roller 22 in advance will flow out through the ring tube 2401 in large quantities, and when the turntable 25 rotates one circle and drives the vertical rod 28 to move upward, it will squeeze the bellows 230 so that the high-temperature gas sucked in the bellows 230 is introduced into the movable sleeve ring 236 through the telescopic air pipe 235, and then through the movable sleeve ring 236. The sleeve 236 rotates inside but not outside, and can introduce high-temperature gas from the multiple air holes 2301 into the rotating hollow metal roller 22. After the hollow metal roller 22 absorbs the heat of the high-temperature gas, the roller body of the hollow metal roller 22 quickly heats up. As a result, when the glass fiber cloth 12 slides past the outer wall of the hollow metal roller 22, the outer wall of the bottom end of the glass fiber cloth 12 is ironed at high temperature, so that the heat is transferred to the epoxy covering film material on the top surface of the glass fiber cloth 12, thereby accelerating its curing speed and improving the utilization of heat resources, avoiding a large amount of resource waste;

[0038] At the same time, when the hollow metal roller 22 rotates, it can also drive the synchronous belt 240 to rotate, thereby driving the rotating rod 241 and the wind wheel cylinder 243 to rotate synchronously on the ear plate 242. The rotating wind wheel cylinder 243 will immediately generate cooling gas to perform secondary cold air curing on the epoxy covering film material that has been heat-cured through the hollow metal roller 22 and the grooved box 23.

[0039] The working principle and use process of the present invention are as follows: first, the power source on the transmission body 1 in the prior art is started, and the power source is specifically a motor, and the glass fiber cloth 12 that has passed through two rollers 11 and the hollow metal roller 22 in advance is transmitted. During the transmission process, the unloading structure in the prior art is used to evenly apply the epoxy covering film material to the surface of the glass fiber cloth 12. At the same time, the material is cured at high temperature in real time through the heating high-temperature plate 24 installed in the groove box 23. At the same time, the hollow metal roller 22 is driven to rotate synchronously by starting the motor 21. Under the rotation movement of the hollow metal roller 22, the ring cylinder 2401, the turntable 25, and the handle 26 are driven to rotate synchronously. The rotating turntable The handle 26 can be fitted and limited in the inner wall of the rectangular slot plate 27 for smoothing, thereby driving the rectangular slot plate 27 and the two vertical rods 28 to move up and down at the same time. The limit plate 29 installed on one vertical rod 28 can play a horizontal guiding role for the rectangular slot plate 27 moving up and down. As a result, the driven vertical rod 28 can pull the bellows 230 installed under the bent support plate 231 when moving downward, so that it generates negative pressure suction, and sucks the hot air away from the glass fiber cloth 12 in the inner wall of the top of the slot box 23 through the straight air pipe 232. At the same time, a small amount of hot air previously input into the hollow metal roller 22 is sucked through the telescopic air pipe 235, so that the hot air of the two is mixed, and the hot air generated by the telescopic air pipe 235 is sucked. The suction force will drive the air plug 237 near the telescopic air pipe 235 in the hollow metal roller 22, so that the air plug 237 squeezes the elastic telescopic parts 238 installed on both sides to separate from the ring tube 2401, and enters the inner cavity of the hollow metal roller 22 driven by the negative pressure. That is, the hot gas that has entered the hollow metal roller 22 in advance will flow out through the ring tube 2401 in large quantities, and when the turntable 25 rotates one circle to drive the vertical rod 28 to move upward, it will squeeze the bellows 230 so that the high-temperature gas sucked inside is introduced into the movable ring 236 through the telescopic air pipe 235, and then the movable ring 236 rotates inside but not outside, so that the high-temperature gas can be introduced into the rotating hollow metal roller 22 from the multiple air holes 2301. After the hollow metal roller 22 absorbs the heat of the high-temperature gas, the roller body of the hollow metal roller 22 quickly heats up, so that when the glass fiber cloth 12 slides past the outer wall of the hollow metal roller 22, the outer wall of the bottom end of the glass fiber cloth 12 is ironed at high temperature, so that the heat is transferred to the epoxy covering film material on the top surface of the glass fiber cloth 12, thereby accelerating its curing speed and improving the utilization of heat resources, avoiding a large amount of resource waste, and when the high-temperature gas is squeezed and ejected from the telescopic air pipe 235, the impact force generated will immediately drive the gas plug 237 to reset and be clamped in the inner wall of the turntable 25 again, avoiding the loss of the newly input high-temperature gas;

[0040] At the same time, when the hollow metal roller 22 rotates, it can also drive the synchronous belt 240 to rotate, thereby driving the rotating rod 241 and the wind wheel cylinder 243 to rotate synchronously on the ear plate 242. The rotating wind wheel cylinder 243 will immediately generate cooling gas, and perform secondary cold air curing on the epoxy covering film material after heat curing through the hollow metal roller 22 and the grooved box 23, thereby producing a fast and effective curing effect.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An epoxy cover film rapid curing device, comprising a conveyor body (1), characterized in that: The conveyor body (1) is provided with two rollers (11) which are rotatably connected thereto, a glass fiber cloth (12) being attached to the outer wall of one of the rollers (11), a power source being fixedly connected to one end of the other roller (11), and the outer wall of one end of the power source is fixedly connected to the outer wall of one end of the conveyor body (1), the conveyor body (1) is provided with a curing part (2), the curing part (2) includes a forward and reverse rotating motor (21), the outer wall of one end of the motor (21) is fixedly connected to the outer wall of one end of the conveyor body (1), and the motor A hollow metal roller (22) is also fixedly connected to the rotating shaft of (21), and the surface of the hollow metal roller (22) can be slidably connected to the outer wall of one end of the glass fiber cloth (12). A groove box (23) is also fixedly connected to the outer wall of the conveyor body (1), and a heating high-temperature plate (24) is fixedly connected to the inner wall of the groove box (23) for curing the epoxy material applied to the surface of the glass fiber cloth (12), so that it is cured to produce an epoxy covering film. The hollow metal roller (22) is provided with a secondary curing structure for accelerating the curing efficiency of the epoxy covering film.

2. The epoxy cover film rapid curing equipment according to claim 1, characterized in that: The secondary solidification structure comprises a ring cylinder (2401) fixedly connected to one end of the hollow metal roller (22), and a plurality of air holes (2301) are formed around a section of the roller body of the hollow metal roller (22), and a turntable (25) is fixedly connected to the outer wall of the ring cylinder (2401).

3. The epoxy cover film rapid curing equipment according to claim 2, characterized in that: A rotating handle (26) is fixedly connected to the side wall at one end of the rotating disk (25); a rectangular slot plate (27) is slidably engaged with the outer wall of the rotating handle (26); vertical rods (28) are fixedly connected to the upper and lower side walls of the rectangular slot plate (27); a limit plate (29) is slidably connected to the rod body of the lower vertical rod (28); and an outer wall at one end of the limit plate (29) is fixedly connected to the outer wall of the conveyor body (1).

4. The epoxy cover film rapid curing equipment according to claim 3, characterized in that: A bellows (230) is fixedly connected to the rod body of the upper vertical rod (28), a bent support plate (231) is fixedly connected to the top of the bellows (230), and a bottom side of the bent support plate (231) is fixedly connected to the top side wall of the slot box (23).

5. The epoxy cover film rapid curing equipment according to claim 4, characterized in that: A straight air pipe (232) is fixedly connected to one end of the bellows (230) close to the top, and a one-way valve (233) is fixedly connected to the pipe body of the straight air pipe (232) for controlling the one-way flow of hot gas.

6. The epoxy cover film rapid curing equipment according to claim 5, characterized in that: An arc angle air pipe (234) is fixedly connected to one end of the bellows (230) near the bottom, a telescopic air pipe (235) is fixedly connected to the other end of the arc angle air pipe (234), and a movable collar (236) is fixedly connected to the bottom end of the telescopic air pipe (235).

7. The epoxy cover film rapid curing equipment according to claim 6, characterized in that: The inner wall of the movable sleeve (236) is fixedly connected to a section of the roller body of the hollow metal roller (22), and an air plug (237) can be intermittently and tightly connected to the inner wall of the ring cylinder (2401).

8. The epoxy cover film rapid curing equipment according to claim 7, characterized in that: Elastic telescopic parts (238) are fixedly connected to the outer walls on both sides of one end of the air plug (237), and T-shaped blocks are fixedly connected to the other ends of the two elastic telescopic parts (238). A T-shaped ring groove (239) is formed around the outer wall of one end of the rotating disk (25) and can be slidably engaged with the two T-shaped blocks.

9. The epoxy cover film rapid curing equipment according to claim 8, characterized in that: The roller body of the hollow metal roller (22) is also specifically fixedly connected to a synchronous belt (240), the other side of the synchronous belt (240) is fixedly connected to a rotating rod (241), and the other end of the rotating rod (241) is movably sleeved with an ear plate (242).

10. The epoxy cover film rapid curing equipment according to claim 9, characterized in that: The bottom end of the ear plate (242) is fixedly connected to the top side wall of the conveyor body (1), and a wind wheel cylinder (243) is fixedly connected to the outer wall of the rotating rod (241).

Images