A screening device for freeze-dried edible fungus powder

Abstract

The present invention relates to the technical field of screening equipment, and discloses a screening device for freeze-dried edible fungi powder, comprising a mounting frame, wherein two support plates are symmetrically fixedly mounted on the upper surface of the mounting frame, and the outer surfaces of the adjacent sides of the two support plates are rotatably mounted with rotating shafts, and a screen frame is fixedly mounted between the two rotating shafts. The square push rod of the present invention drives the piston plate to reciprocate up and down, and the piston plate compresses the air inside the compression cylinder, so that it flows alternately from the air pipe and the connecting pipe into the interior of the upper and lower dust hoods, and the air blows the surface of the screen cloth from the dust hood. The device can clean the mesh of the screen cloth in real time to avoid clogging of the mesh of the screen cloth during the screening process, thereby ensuring that the freeze-dried edible fungi powder can smoothly pass through the mesh of the screen cloth, thereby ensuring the screening efficiency of the freeze-dried edible fungi powder.

Description

Technical Field

[0001] The present invention relates to the technical field of screening equipment, in particular to a screening equipment for freeze-dried edible fungus powder. Background Art

[0002] Edible fungi refer to edible mushrooms with large fruiting bodies, commonly known as mushrooms. There are more than 350 known species of edible fungi in China, most of which belong to the Basidiomycota. Making fungi into freeze-dried powder can preserve them for a long time with less loss of nutrients. Freeze-dried powder is made by using the vacuum freeze-drying method of a freeze dryer to freeze the water in the medicinal liquid in advance, and then sublime the frozen water in the medicinal liquid in a vacuum and sterile environment to obtain freeze-dried powder. In short, the water in the medicinal liquid is extracted in a low-temperature environment to retain its original medicinal effect.

[0003] An existing screening device for producing freeze-dried mushroom powder (Announcement No.: CN113441253B) has at least the following drawbacks:

[0004] When the above patent is in use, by setting a sliding hole, a sliding rod, a baffle rod, a rotating rod, an electric push rod, a pushing block, a buffer spring, a top plate and a rubber plate, the electric push rod pushes the screening cylinder, so that the sliding rod and the baffle rod slide through the rotating rod, the screening cylinder contacts the top plate, compresses the buffer spring, and the buffer spring rebounds to push the screening cylinder to move in the opposite direction. The electric push rod pushes the screening cylinder again to repeat the above movement, driving the screening cylinder and the internal freeze-dried powder to shake for screening. During screening, the above patent does not synchronously clean and dredge the screen, so that the mesh of the screen becomes blocked during the screening process, and the material cannot pass through the screen smoothly, thereby reducing the overall screening efficiency and taking longer to complete the screening. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a freeze-dried edible fungus powder screening device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A device for screening freeze-dried powder of edible fungi comprises a mounting frame, wherein two support plates are symmetrically fixedly mounted on the upper surface of the mounting frame, a rotating shaft is rotatably mounted on the outer surfaces of adjacent sides of the two support plates, a screen frame is fixedly mounted between the two rotating shafts, two groups of support blocks are symmetrically fixedly mounted on the outer surfaces of opposite sides of the screen frame in pairs, a winding roller is rotatably mounted between two support blocks in a group, a screen cloth is wound around the outer surfaces of the two winding rollers, one end of the screen cloth is fixedly connected to the circumferential outer surface of one of the winding rollers, The other end of the screen cloth is fixedly connected to the circumferential outer surface of another winding roller, and a gap is provided between the inner walls on opposite sides of the screen frame. The screen cloth is arranged inside the gap and slidably installed on its inner wall. Two dust hoods are fixedly installed symmetrically between the upper and lower support blocks of a group of two. The screen cloth is arranged between the two dust hoods, and the upper and lower surfaces of the screen cloth are respectively flush with the ports of the two dust hoods. The two upper dust hoods are connected by a connecting pipe, and the two lower dust hoods are also connected by a connecting pipe.

[0008] The transmission mechanism that this invention relates to is that two gears are connected, and two gears are connected, and two gears are connected, and two gears are connected, and two gears are connected, and two gears are connected, and two gears are connected, and a gear is connected, and a gear is connected, and a gear is connected, and a gear is connected, and a gear is connected, and a gear is connected, and a gear is connected, and a gear is connected, and a gear is connected

[0009] As a further solution of the present invention, two ventilation blocks are symmetrically fixedly installed on the upper and lower surfaces of the mounting frame, and a Y-shaped groove is opened inside the two ventilation blocks. The end face of the ventilation block away from the arc end face rack is fixedly connected to the air pipe, and the other end of the air pipe is fixedly connected to the outer surface of the connecting pipe, and one end of the Y-shaped groove is connected to the connecting pipe through the air pipe.

[0010] As a further solution of the present invention, the end faces of the other ends of the two ventilation blocks are fixedly installed with a first air outlet nozzle and a second air outlet nozzle, and the first air outlet nozzle and the second air outlet nozzle are respectively connected to the other two ends of the Y-shaped groove. The port of the second air outlet nozzle of the upper ventilation block is fixedly connected to a conduit, and the port of the first air outlet nozzle of the lower ventilation block is fixedly connected to a conduit.

[0011] As a further solution of the present invention, a compression cylinder is fixedly installed on the lower surface of the mounting frame near one end of the ventilation block, and a piston plate is slidably installed on the inner wall of the compression cylinder, and the interior of the compression cylinder is divided into an upper cavity and a lower cavity by the piston plate, and the upper cavity is connected with the second air outlet nozzle of the upper ventilation block through a conduit, and the lower cavity is connected with the first air outlet nozzle of the lower ventilation block through a conduit. The top and bottom ends of the compression cylinder are fixedly connected with a one-way intake valve, and the one-way intake valve is connected with the interior of the compression cylinder, and a square push rod is fixedly installed on the upper surface of the piston plate, and the top end of the square push rod passes through the upper surface of the compression cylinder and is slidably installed on the inner wall of the compression cylinder, and a turntable is fixedly installed on the circumferential outer surface of the crankshaft, and a profiled cam groove is provided on the outer surface of the turntable near the compression cylinder, and a drive column is fixedly installed on the outer surface of the square push rod near the top, and the drive column is slidably installed with the inner wall of the profiled cam groove.

[0012] As a further solution of the present invention, a rotating rod is rotatably installed between the inner walls of the two ventilation blocks, and two brake pads are fixedly installed symmetrically on the upper and lower surfaces of the rotating rod. The brake pads are arranged inside the Y-shaped groove, and the top of the rotating rod passes through the upper surface of the upper ventilation block and is fixedly installed with a driving rod. The driving rod is arranged perpendicular to the brake pads, and a pillar is fixedly installed on the upper surface of the mounting frame near one end of the ventilation block, and a square sliding rod is slidably installed between the inner walls of the pillar near the top, and a sliding column is fixedly installed on the lower surface of the square sliding rod near one end of the driving rod, and a sliding groove is penetrated through the outer surface of the other end of the driving rod, and the sliding column is slidably installed with the inner wall of the sliding groove.

[0013] As a further solution of the present invention, a baffle is fixedly installed on the outer surface of the square slide rod near one end of the driving rod, and a spring is sleeved on the outer surface of the square slide rod, one end of the spring is fixedly connected to the outer surface of the baffle, and the other end of the spring is fixedly connected to the outer surface of the pillar, and a concave-convex ring is fixedly installed on the outer surface of the other side of the turntable, and the end faces of the concave-convex ring are alternately provided with concave and convex surfaces, and the other end of the square slide rod passes through the outer surface of the pillar and is fixedly installed with a guide column, and the guide column is abutted against the concave and convex surface of the concave-convex ring and slidably installed.

[0014] As a further solution of the present invention, a pressure plate is slidably installed on the inner wall of the dust hood, and a plurality of exhaust holes are evenly penetrated on the outer surface of the pressure plate. A plurality of protrusions are provided on the surface of the pressure plate close to the screen cloth. Two T-shaped columns are symmetrically fixedly installed on the outer surface of the other side of the pressure plate. The two T-shaped columns penetrate the outer surface of the dust hood and are slidably installed thereon. A tension spring is sleeved on the outer surface of the T-shaped column, and one end of the tension spring is fixedly connected to one end of the T-shaped column, and the other end of the tension spring is fixedly connected to the outer surface of the dust hood.

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

[0016] 1. The square push rod drives the piston plate to move up and down. The piston plate compresses the air inside the compression cylinder, causing it to flow alternately from the air pipe and the connecting pipe into the upper and lower dust hoods. The air blows from the dust hood to the surface of the screen cloth. This device can clean the mesh of the screen cloth in real time to avoid clogging of the mesh of the screen cloth during the screening process, ensuring that the freeze-dried edible fungi powder can pass through the mesh of the screen cloth smoothly, thereby ensuring the screening efficiency of the freeze-dried edible fungi powder.

[0017] 2. When the compressed air enters the dust hood, the air will first press the pressure plate to move toward the screen cloth, so that the protrusions on the surface of the pressure plate hit the surface of the screen cloth, and the air will be blown out from the exhaust hole to blow on the surface of the screen cloth. Through this device, the surface of the screen cloth can be knocked, so that the edible fungus freeze-dried powder that is firmly adhered to the surface of the screen cloth is knocked off, which is convenient for subsequent cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a freeze-dried edible fungus powder screening device proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom structure of a freeze-dried mushroom powder screening device proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the top view of the edible fungus freeze-dried powder screening equipment proposed by the present invention;

[0021] Figure 4 This is a schematic diagram of the arc end face rack of the edible fungus freeze-dried powder screening equipment proposed by the present invention;

[0022] Figure 5 This is a schematic cross-sectional view of a compression cylinder of a freeze-dried edible fungus powder screening device proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of a ventilation block of a freeze-dried edible fungus powder screening device proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of a turntable of a freeze-dried mushroom powder screening device proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of a square slide bar of a freeze-dried mushroom powder screening device proposed by the present invention;

[0026] Figure 9 This is a schematic diagram of a driving rod of a freeze-dried mushroom powder screening device proposed by the present invention;

[0027] Figure 10This is a schematic diagram of the dust hood of the edible fungus freeze-dried powder screening equipment proposed by the present invention.

[0028] In the figure: 1, mounting frame; 2, support plate; 3, screen frame; 4, screen cloth; 5, support block; 6, rotating shaft; 7, winding roller; 8, pulley; 9, belt; 10, arc end face rack; 11, gear; 12, driving motor; 13, crankshaft; 14, curved neck; 1401, connecting rod; 15, dust cover; 1501, pressure plate; 16, connecting pipe; 17, T-shaped column; 1701, tension spring; 18, ventilation block; 1801, first air outlet nozzle; 180 2. Second air outlet nozzle; 1803. Conduit; 19. Air pipe; 20. Compression cylinder; 2001. One-way air inlet valve; 21. Turntable; 22. Concave-convex ring; 23. Profiled cam groove; 24. Square push rod; 25. Drive column; 26. Piston plate; 27. Support column; 28. Square slide rod; 29. ​​Guide column; 30. Baffle; 31. Spring; 32. Drive rod; 33. Slide groove; 34. Slide column; 35. Turn rod; 36. Gate plate; 37. Y-shaped groove. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0030] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0032] Reference Figures 1-10, a freeze-dried edible fungus powder screening equipment, including a mounting frame 1, the upper surface of the mounting frame 1 is symmetrically fixed with two support plates 2, the outer surfaces of the adjacent sides of the two support plates 2 are rotatably mounted with a rotating shaft 6, a screen frame 3 is fixedly mounted between the two rotating shafts 6, the outer surfaces of the opposite sides of the screen frame 3 are symmetrically fixed with two groups of support blocks 5, a group of two support blocks 5 is rotatably mounted between a winding roller 7, the outer surfaces of the two winding rollers 7 are both wound with a screen cloth 4, one end of the screen cloth 4 is fixedly connected to the circumferential outer surface of one of the winding rollers 7, the screen cloth The other end of 4 is fixedly connected to the circumferential outer surface of another winding roller 7. A gap is provided between the inner walls on opposite sides of the screen frame 3. The screen cloth 4 is provided inside the gap and slidably installed with its inner wall. Two dust-blowing hoods 15 are fixedly installed symmetrically up and down between a group of two support blocks 5. The screen cloth 4 is provided between the two dust-blowing hoods 15. The upper and lower surfaces of the screen cloth 4 are respectively flush with the ports of the two dust-blowing hoods 15. The upper two dust-blowing hoods 15 are connected by a connecting pipe 16, and the lower two dust-blowing hoods 15 are also connected by a connecting pipe 16.

[0033] Compressed air flows alternately from the air pipe 19 and the connecting pipe 16 into the interior of the upper and lower dust hoods 15, and the air blows from the dust hoods 15 to the surface of the screen cloth 4. Through this device, the mesh of the screen cloth 4 can be cleaned in real time to avoid clogging of the mesh of the screen cloth 4 during the screening process, ensuring that the edible fungus freeze-dried powder can pass through the mesh of the screen cloth 4 smoothly, thereby ensuring the screening efficiency of the edible fungus freeze-dried powder.

[0034] In this embodiment, one end of each of the two winding rollers 7 passes through the outer surface of the support block 5 and is fixedly installed with a pulley 8. A belt 9 is wound around the outer surface of the two pulleys 8. The other end of one of the winding rollers 7 passes through the outer surface of the support block 5 and is fixedly installed with a gear 11. The upper surface of the mounting frame 1 is fixedly installed with an arc end face rack 10. The gear 11 is meshed with the arc end face rack 10. The center of the arc end face rack 10 is set at the rotation center position of the rotating shaft 6. The upper surface of the mounting frame 1 is penetrated by an opening A crankshaft 13 is rotatably installed between the inner walls on both sides of the opening. The crankshaft 13 is arranged at one end of the rack 10 close to the arc end face. A curved neck 14 is provided on the circumferential outer surface of the crankshaft 13. A connecting rod 1401 is rotatably installed between the inner walls of the curved neck 14. The top end of the connecting rod 1401 is rotatably installed with the lower surface of one end of the screen frame 3. A driving motor 12 is fixedly installed on the outer surface of one side of the screen frame 3. The output end of the driving motor 12 passes through the inner wall of the screen frame 3 and is fixedly installed with the rotation center of the crankshaft 13.

[0035] The crankshaft 13 is driven to rotate by the driving motor 12, and the crankshaft 13 drives the curved neck 14 to move eccentrically. The curved neck 14 drives the screen frame 3 to reciprocate up and down within an angle range through the connecting rod 1401, and the freeze-dried edible fungi powder is driven to reciprocate on the upper surface of the screen cloth 4 through the screen frame 3, thereby screening the freeze-dried edible fungi powder. The qualified freeze-dried edible fungi powder that has been screened will fall into the collection box below from the opening on the mounting frame 1 and enter the subsequent process. The present device is convenient for screening the freeze-dried edible fungi powder; the reciprocating motion of the screen frame 3 drives the gear 11 to reciprocate, and the gear 11 drives itself to rotate back and forth by meshing with the arc end face rack 10, and drives one of the winding rollers 7 to rotate back and forth through the gear 11, and one of the winding rollers 7 drives the other winding roller 7 to rotate back and forth at the same time through the pulley 8 and the belt 9. The screen cloth 4 inside the screen frame 3 can be replaced in real time by the present device, which is convenient for subsequent cleaning of the screen cloth 4.

[0036] The two air exchange blocks 18 are symmetrically fixedly installed on the upper and lower surfaces of the mounting frame 1. A Y-shaped groove 37 is provided inside the two air exchange blocks 18. The end surface of the air exchange block 18 away from one end of the arc end face rack 10 is fixedly connected to the air pipe 19, and the other end of the air pipe 19 is fixedly connected to the outer surface of the connecting pipe 16. One end of the Y-shaped groove 37 is connected to the connecting pipe 16 through the air pipe 19. The end surface of the other end of the two air exchange blocks 18 is fixedly installed with a first air outlet nozzle 1801 and a second air outlet nozzle 1802. The first air outlet nozzle 1801 and the second air outlet nozzle 1802 are respectively connected to the other two ends of the Y-shaped groove 37. The port of the second air outlet nozzle 1802 located on the upper air exchange block 18 is fixedly connected to a conduit 1803, and the port of the first air outlet nozzle 1801 located on the lower air exchange block 18 is fixedly connected to a conduit 1803. A compression cylinder 20 is fixedly installed on the lower surface of the mounting frame 1 near one end of the air exchange block 18. The piston plate 26 is slidably mounted on the inner wall of 20, and the interior of the compression cylinder 20 is divided into an upper cavity and a lower cavity by the piston plate 26. The upper cavity is connected to the second air outlet nozzle 1802 of the upper ventilation block 18 through a conduit 1803, and the lower cavity is connected to the first air outlet nozzle 1801 of the lower ventilation block 18 through a conduit 1803. The top and bottom ends of the compression cylinder 20 are fixedly connected to a one-way air intake valve 2001, and the one-way air intake valve 2001 is connected to the interior of the compression cylinder 20. The upper surface of the piston plate 26 is fixedly mounted with a square push rod 24, and the top end of the square push rod 24 passes through the upper surface of the compression cylinder 20 and is slidably mounted on its inner wall. The circumferential outer surface of the crankshaft 13 is fixedly mounted with a turntable 21, and the outer surface of the turntable 21 near the compression cylinder 20 is provided with a profiled cam groove 23. The outer surface of the square push rod 24 near the top is fixedly mounted with a drive column 25, and the drive column 25 is slidably mounted on the inner wall of the profiled cam groove 23.

[0037] The crankshaft 13 drives the turntable 21 to rotate, and the turntable 21 drives the square push rod 24 to reciprocate up and down through the profiled cam groove 23 and the drive column 25. The square push rod 24 drives the piston plate 26 to reciprocate up and down. At the same time, the rotation of the turntable 21 drives the concave-convex ring 22 to rotate, and the concave-convex ring 22 drives the square slide rod 28 to reciprocate through the concave-convex surface and the guide column 29, so that when the piston plate 26 moves, it compresses the air inside the compression cylinder 20. When the piston plate 26 moves upward, it compresses the air inside the upper cavity of the compression cylinder 20. The air passes through the conduit 1803 and the inside of the upper ventilation block 18. The Y-shaped groove 37 flows into the interior of the trachea 19, and then flows from the trachea 19 and the connecting pipe 16 into the interior of the two dust hoods 15 above. The air blows the surface of the screen cloth 4 from the dust hood 15, so that the freeze-dried edible fungi powder blocked in the mesh of the screen cloth 4 is blown into the interior of the dust hood 15 below. As the blown air passes through the lower trachea 19 and the connecting pipe 16, it flows into the interior of the lower ventilation block 18, and flows from the Y-shaped groove 37 inside the lower ventilation block 18 through the second air outlet nozzle 1802 into the external filter collection device for air filtering and dust collection.

[0038] In this embodiment, a rotating rod 35 is rotatably installed between the inner walls of the two ventilation blocks 18, and two brake discs 36 are fixedly installed on the outer surface of the rotating rod 35 symmetrically up and down. The brake discs 36 are arranged inside the Y-shaped groove 37. The top of the rotating rod 35 passes through the upper surface of the upper ventilation block 18 and is fixedly installed with a driving rod 32. The driving rod 32 is arranged perpendicular to the brake disc 36. The upper surface of the mounting frame 1 near one end of the ventilation block 18 is fixedly installed with a pillar 27, and a square slide rod 28 is slidably installed between the inner wall near the top of the pillar 27. The lower surface of the square slide rod 28 near one end of the driving rod 32 is fixedly installed with a slide column 34. The outer surface of the other end of the driving rod 32 A sliding groove 33 is provided through the turntable 21, and a sliding column 34 is slidably installed on the inner wall of the sliding groove 33. A baffle 30 is fixedly installed on the outer surface of the square sliding rod 28 near one end of the driving rod 32. A spring 31 is sleeved on the outer surface of the square sliding rod 28, and one end of the spring 31 is fixedly connected to the outer surface of the baffle 30. The other end of the spring 31 is fixedly connected to the outer surface of the pillar 27. A concave-convex ring 22 is fixedly installed on the outer surface of the other side of the turntable 21, and the end face of the concave-convex ring 22 is alternately provided with concave and convex surfaces. The other end of the square sliding rod 28 passes through the outer surface of the pillar 27 and is fixedly installed with a guide column 29. The guide column 29 is abutted against the concave and convex surface of the concave-convex ring 22 and is slidably installed.

[0039] When the piston plate 26 moves upward, it compresses the air inside the upper cavity of the compression cylinder 20. At this time, the square slide rod 28 pulls the drive rod 32 through the slide groove 33 and the slide column 34 to rotate in the direction close to the turntable 21. The drive rod 32 drives the rotating rod 35 to rotate, and the rotating rod 35 drives the two gate plates 36 to seal the flow channel of the two Y-shaped grooves 37 close to the second air outlet nozzle 1802.

[0040] In this embodiment, a pressure plate 1501 is slidably installed on the inner wall of the dust hood 15, and a plurality of exhaust holes are evenly penetrated on the outer surface of the pressure plate 1501. A plurality of protrusions are provided on the surface of the pressure plate 1501 close to the screen cloth 4. Two T-shaped columns 17 are symmetrically fixedly installed on the outer surface of the other side of the pressure plate 1501. The two T-shaped columns 17 penetrate the outer surface of the dust hood 15 and are slidably installed therewith. A tension spring 1701 is sleeved on the outer surface of the T-shaped column 17, and one end of the tension spring 1701 is fixedly connected to one end of the T-shaped column 17, and the other end of the tension spring 1701 is fixedly connected to the outer surface of the dust hood 15.

[0041] When the compressed air enters the dust hood 15, the air will first press the pressure plate 1501 to move toward the screen cloth 4, so that the protrusions on the surface of the pressure plate 1501 hit the surface of the screen cloth 4, and the air will be blown out from the exhaust hole to blow on the surface of the screen cloth 4. Through this device, the surface of the screen cloth 4 can be knocked, so that the freeze-dried edible fungus powder that is firmly adhered to the surface of the screen cloth 4 is knocked off, which is convenient for subsequent cleaning.

[0042] It should be noted that before using the present invention, the operator connects the external filter collection device to the first air outlet nozzle 1801 on the upper end face of the ventilation block 18 and the second air outlet nozzle 1802 on the lower end face of the ventilation block 18 through the connecting air pipes;

[0043] When in use, the operator adds a quantitative amount of freeze-dried edible fungi powder to be screened onto the upper surface of the screen cloth 4 so that the freeze-dried edible fungi powder is located inside the screen frame 3;

[0044] The crankshaft 13 is driven to rotate by the driving motor 12, and the crankshaft 13 drives the curved neck 14 to move eccentrically. The curved neck 14 drives the screen frame 3 to reciprocate up and down within an angle range through the connecting rod 1401. The edible fungus freeze-dried powder is driven to bounce back and forth on the upper surface of the screen cloth 4 through the screen frame 3, thereby screening the edible fungus freeze-dried powder. The qualified edible fungus freeze-dried powder that has been screened will fall from the opening on the mounting frame 1 into the collection box below and enter the subsequent process. The present device is convenient for screening the edible fungus freeze-dried powder.

[0045] The up and down reciprocating motion of the screen frame 3 drives the gear 11 to reciprocate, and the gear 11 drives itself to rotate back and forth by meshing with the arc end face rack 10, and drives one of the winding rollers 7 to rotate back and forth through the gear 11, and one of the winding rollers 7 drives the other winding roller 7 to rotate back and forth at the same time through the pulley 8 and the belt 9. Through this device, the screen cloth 4 inside the screen frame 3 can be replaced in real time, which is convenient for subsequent cleaning of the screen cloth 4;

[0046] The crankshaft 13 drives the turntable 21 to rotate, and the turntable 21 drives the square push rod 24 to reciprocate up and down through the cam groove 23 and the driving column 25, and the square push rod 24 drives the piston plate 26 to reciprocate up and down. At the same time, the rotation of the turntable 21 drives the concave-convex ring 22 to rotate, and the concave-convex ring 22 drives the square slide rod 28 to reciprocate through the concave-convex surface and the guide column 29. When the piston plate 26 moves upward, it compresses the air inside the upper cavity of the compression cylinder 20. At this time, the square slide rod 28 pulls the drive rod 32 to rotate in the direction close to the turntable 21 through the slide groove 33 and the slide column 34, and the drive rod 32 drives the rotating rod 35 to rotate. The rotating rod 35 drives the two gate plates 36 to seal the flow channel of the two Y-shaped grooves 37 near the second air outlet nozzle 1802, so that the air inside the upper cavity of the compression cylinder 20 passes through the conduit 1803 and the Y inside the upper ventilation block 18 The air flows into the interior of the air pipe 19 through the Y-shaped groove 37, and then flows into the interior of the two dust-blowing hoods 15 above from the air pipe 19 and the connecting pipe 16. The air blows the surface of the screen cloth 4 from the dust-blowing hood 15, so that the freeze-dried edible fungi powder blocked in the mesh of the screen cloth 4 is blown into the interior of the dust-blowing hood 15 below. The blown air flows into the interior of the ventilation block 18 below through the air pipe 19 and the connecting pipe 16 below, and flows into the interior of the external filter collection device through the second air outlet nozzle 1802 from the Y-shaped groove 37 inside the ventilation block 18 below for air filtration and dust collection. The mesh of the screen cloth 4 can be cleaned in real time by this device to avoid clogging of the mesh of the screen cloth 4 during the screening process, thereby ensuring that the freeze-dried edible fungi powder can pass through the mesh of the screen cloth 4 smoothly, thereby ensuring the screening efficiency of the freeze-dried edible fungi powder.

[0047] When the compressed air enters the dust hood 15, the air will first press the pressure plate 1501 to move toward the screen cloth 4, so that the protrusions on the surface of the pressure plate 1501 hit the surface of the screen cloth 4, and the air will be blown out from the exhaust hole to blow on the surface of the screen cloth 4. Through this device, the surface of the screen cloth 4 can be knocked, so that the freeze-dried edible fungus powder that is firmly adhered to the surface of the screen cloth 4 is knocked off, which is convenient for subsequent cleaning.

[0048] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A freeze-dried mushroom powder screening device, comprising a mounting frame, characterized in that: The upper surface of the mounting frame is symmetrically fixed with two support plates, and the outer surfaces of the adjacent sides of the two support plates are rotatably mounted with rotating shafts, and a screen frame is fixedly mounted between the two rotating shafts, and the outer surfaces of the opposite sides of the screen frame are symmetrically fixed with two groups of support blocks, and a winding roller is rotatably mounted between two support blocks in a group, and a screen cloth is wound around the outer surfaces of the two winding rollers, one end of the screen cloth is fixedly connected to the circumferential outer surface of one of the winding rollers, and the other end of the screen cloth is fixedly connected to the circumferential outer surface of the other winding roller, a gap is provided between the inner walls of the opposite sides of the screen frame, and the screen The cloth is set inside the gap and slidably installed on its inner wall. Two dust blowing hoods are fixedly installed symmetrically between the upper and lower support blocks of a group. The screen cloth is set between the two dust blowing hoods. The upper surface and lower surface of the screen cloth are flush with the ports of the two dust blowing hoods respectively. The two upper dust blowing hoods are connected by connecting pipes, and the two lower dust blowing hoods are also connected by connecting pipes. A compression cylinder is fixedly installed on the lower surface of the mounting frame near one end of the ventilation block, and a piston plate is slidably installed on the inner wall of the compression cylinder. The interior of the compression cylinder is divided into an upper cavity and a lower cavity by the piston plate, and the upper cavity is connected to the upper cavity through a conduit. The air intake valve is connected to the air outlet of the air exchange block, and the air outlet valve is connected to the first air outlet valve of the air exchange block below through a conduit. The top and bottom ends of the compression cylinder are fixedly connected to a one-way air intake valve, and the one-way air intake valve is connected to the interior of the compression cylinder. A square push rod is fixedly installed on the upper surface of the piston plate, and the top end of the square push rod passes through the upper surface of the compression cylinder and is slidably installed on the inner wall of the compression cylinder. An opening is opened on the upper surface of the mounting frame, and a crankshaft is rotatably installed between the inner walls on both sides of the opening. A turntable is fixedly installed on the circumferential outer surface of the crankshaft, and a contoured convex is provided on the outer surface of the turntable close to the compression cylinder. The wheel groove is provided with a driving column fixedly mounted on the outer surface of the square push rod near the top, and the driving column is slidably mounted on the inner wall of the profiled cam groove, and a pressure plate is slidably mounted on the inner wall of the dust hood, and a plurality of exhaust holes are evenly penetrated through the outer surface of the pressure plate, and a plurality of protrusions are provided on the surface of the pressure plate near the screen cloth, and two T-shaped columns are symmetrically fixedly mounted on the outer surface of the other side of the pressure plate, and the two T-shaped columns penetrate the outer surface of the dust hood and are slidably mounted thereon, and a tension spring is sleeved on the outer surface of the T-shaped column, and one end of the tension spring is fixedly connected to one end of the T-shaped column, and the other end of the tension spring is fixedly connected to the outer surface of the dust hood.

2. The edible fungus freeze-dried powder screening device according to claim 1, characterized in that: The transmission gear of said sliding panel also is connected with the gear train of said sliding panel also is connected with the gear train of said sliding panel also is connected with the gear train of said sliding panel also is connected with the gear train of said sliding panel.

3. The edible fungus freeze-dried powder screening device according to claim 2, characterized in that: Two ventilation blocks are symmetrically fixedly installed on the upper and lower surfaces of the mounting frame, and a Y-shaped groove is provided inside the two ventilation blocks. The end face of the ventilation block away from one end of the arc end face rack is fixedly connected to an air pipe, and the other end of the air pipe is fixedly connected to the outer surface of the connecting pipe, and one end of the Y-shaped groove is connected to the connecting pipe through the air pipe.

4. The edible fungus freeze-dried powder screening device according to claim 3, characterized in that: The end faces of the other ends of the two ventilation blocks are fixedly installed with a first air outlet nozzle and a second air outlet nozzle, and the first air outlet nozzle and the second air outlet nozzle are respectively connected to the other two ends of the Y-shaped groove. The port of the second air outlet nozzle of the upper ventilation block is fixedly connected to a conduit, and the port of the first air outlet nozzle of the lower ventilation block is fixedly connected to a conduit.

5. The edible fungus freeze-dried powder screening device according to claim 1, characterized in that: A rotating rod is rotatably installed between the inner walls of the two ventilation blocks, and two brake pads are fixedly installed symmetrically on the upper and lower outer surfaces of the rotating rod. The brake pads are arranged inside the Y-shaped groove, and the top of the rotating rod passes through the upper surface of the upper ventilation block and is fixedly installed with a driving rod. The driving rod is arranged perpendicular to the brake pads, and a pillar is fixedly installed on the upper surface of the mounting frame near one end of the ventilation block, and a square sliding rod is slidably installed between the inner walls of the pillar near the top, and a sliding column is fixedly installed on the lower surface of the square sliding rod near one end of the driving rod, and a sliding groove is penetrated on the outer surface of the other end of the driving rod, and the sliding column is slidably installed with the inner wall of the sliding groove.

6. The edible fungus freeze-dried powder screening device according to claim 5, characterized in that: A baffle is fixedly installed on the outer surface of the square slide rod near one end of the driving rod, and a spring is sleeved on the outer surface of the square slide rod, one end of the spring is fixedly connected to the outer surface of the baffle, and the other end of the spring is fixedly connected to the outer surface of the pillar, and a concave-convex ring is fixedly installed on the outer surface of the other side of the turntable, and the end faces of the concave-convex ring are alternately provided with concave and convex surfaces, and the other end of the square slide rod passes through the outer surface of the pillar and is fixedly installed with a guide column, and the guide column is abutted against the concave and convex surface of the concave-convex ring and slidably installed.

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