Dust removal device used before shiitake mushroom packaging

Abstract

The utility model relates to a dust removal device before mushroom packaging, which solves the technical problems of labor waste and low efficiency of the existing dust removal device, and comprises a bottom shell, a screen device swings at the upper end of the bottom shell, upper swing shafts are fixed on two sides of the screen device, lower swing shafts are fixed at two ends of the bottom shell, and swing rods are arranged between the upper swing shafts and the lower swing shafts. A bidirectional lead screw is rotationally installed in the bottom shell and is in threaded connection with a cleaning brush, the rear end of the bottom shell is connected with a driving shell, the end of the bidirectional lead screw is connected with a driving device, the driving shell is connected with a driving swing shaft, a driving disc is fixed to the end of the driving swing shaft, an eccentric shaft is fixed to the driving disc, and a swing shaft is further fixed to the front end of the screen device. According to the vibrating screen device, the screen device is driven by the driving device to conduct vibrating screening, the screening efficiency is improved, and the labor intensity of workers is relieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal before mushroom packaging, in particular to a dust removal device before mushroom packaging. Background Art

[0002] When preparing dried shiitake mushroom products, the picked shiitake mushrooms need to go through multiple processes such as cleaning, drying, screening, removing impurities, and baking. After multiple strict process treatments, the shiitake mushrooms are bagged and packaged.

[0003] Before packaging, shiitake mushrooms need to undergo a final dust removal and screening process. Because shiitake mushrooms undergo multiple processes before packaging, it is inevitable that there will be foreign particles and dust from the outside world. In order to ensure the cleanliness of the shiitake mushrooms during packaging, a final dust removal process is required before packaging.

[0004] Previously, when removing dust before packaging, a sieve was placed on a platform, and then the mushrooms were spread on the sieve using tools such as wooden shovels. Two workers were then required to shake the sieve to remove impurities and dust. This screening and dust removal method was inefficient and also wasted workers’ labor.

[0005] After every few screenings, the sieve needs to be removed from the platform, and then the dust on the platform needs to be cleaned and placed on the platform for screening again. Otherwise, too much dust will be raised when the sieve is shaken, causing greater pollution to the mushrooms. The reciprocating movement of the sieve and cleaning of the dust also wastes a lot of labor.

[0006] In addition, after each dust removal, workers are required to use wooden shovels to gather the flat mushrooms into piles for packaging. Using wooden shovels can easily damage the quality of the mushrooms, and the packaging efficiency is low, wasting workers' labor.

[0007] However, current vibrating screens are relatively large in size and are mainly used for screening in the early stages of processing of shiitake mushrooms. They are not suitable for dust removal before packaging.

[0008] Therefore, our company has improved the dust removal device on the current production line and proposed a dust removal device before mushroom packaging to solve this problem. Utility Model Content

[0009] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a dust removal device before packaging of shiitake mushrooms. The utility model has a novel structure and ingenious conception, and effectively solves the technical problems of waste of labor and low efficiency caused by the existing dust removal device before packaging that requires workers to shake, carry, clean, and collect it multiple times.

[0010] The swivel chair is provided with an eccentric shaft, and a vibration rod is rotatably installed between the upper and lower swing shafts, and a bidirectional screw rod is rotatably installed in the bottom shell, and guide rods arranged in the bottom shell are fixed on both sides of the bidirectional screw rod, and a sliding plate is threadedly connected with the bidirectional screw rod, and the guide rod runs through both sides of the sliding plate, and a cleaning brush is fixed on the lower end of the sliding plate. The rear end of the bottom shell is connected with a driving shell, and the end head of the bidirectional screw rod is connected with a driving device arranged in the driving shell, and one side of the driving shell is rotatably connected with a driving swing shaft, and the end head of the driving swing shaft is fixed with a driving disk arranged outside the driving shell, and an eccentric shaft is fixed on the driving disk. The front end of the sieve device is also fixed with a swing shaft, and a vibration rod is rotatably installed between the eccentric shaft and the swing shaft, and the driving device is respectively connected with the bidirectional screw rod and the driving swing shaft through a switching mechanism.

[0011] Preferably, the switching mechanism includes a driving motor placed in a driving housing, the driving motor is coaxially connected to a main bevel gear, a switching block is slidably installed in front of the main bevel gear, both ends of the switching block are fixed with symmetrically arranged fixed blocks, a sleeve is fixed on the fixed block, a left bevel gear and a right bevel gear are rotatably installed on the inner sides of the two sleeves, a left driving shaft is inserted in the left bevel gear, the left bevel gear is slidably installed on the left driving shaft, a right driving shaft is inserted in the right bevel gear, the right bevel gear is slidably installed on the right driving shaft, the right driving shaft is coaxially connected to the driving swing shaft, a reversing bevel gear is fixed to the end of the left driving shaft, and the reversing bevel gear is meshed with a screw bevel gear sleeved on the end of the bidirectional screw.

[0012] Preferably, a sliding groove is provided on the driving shell, and the lower end of the switching block is slidably installed in the sliding groove via a sliding block.

[0013] Preferably, a threaded hole is provided on the drive housing, an adjusting screw is threadedly installed in the threaded hole, an adjusting sleeve is fixed on the side wall of the fixed block, and the end of the adjusting screw is rotatably installed in the adjusting sleeve.

[0014] Preferably, the screen device includes a screen frame, the front end of the screen frame is rotatably installed with a screen placed in the screen frame via a screen shaft, the rear end of the bottom shell is provided with a rotating hole, the rotating hole is connected to a clamping hole, an adjusting rod is rotatably installed in the rotating hole, and a clamping plate that can rotate in the clamping hole is fixed to the lower end of the adjusting rod.

[0015] Preferably, a support plate placed below the screen is fixed to the rear side of the screen frame, and a plurality of compression springs are installed between the support plate and the screen.

[0016] Preferably, a pull rope is fixed to the rear end of the screen, and the other end of the pull rope is placed outside the front end of the screen frame.

[0017] Preferably, a packing opening is provided at the front end of the screen frame, and a baffle is hinged at the packing opening via a hinge.

[0018] Preferably, a dust cleaning port is reserved at the front end of the bottom shell, a mounting plate is fixed to the upper end of the dust cleaning port, and a bidirectional screw is rotatably mounted on the mounting plate.

[0019] The utility model has the following technical effects.

[0020] 1. The utility model drives the drive swing shaft to rotate through the driving device, and the drive swing shaft drives the drive disk to rotate. The eccentric shaft on the drive disk rotates eccentrically, and the eccentric shaft pulls the vibration rod to drive the swing shaft to move. The swing shaft enables the screen device to vibrate and screen, thereby replacing the workers' vibration screening, saving time, improving screening efficiency, and reducing the workers' labor intensity.

[0021] 2. When it is necessary to clean the dust, the switching mechanism is used to switch so that the driving device starts to drive the bidirectional screw rod. The bidirectional screw rod enables the sliding plate and the cleaning brush to move in the bottom shell. The cleaning brush cleans the dust in the bottom shell. The bidirectional screw rod enables the cleaning brush to automatically reverse and realize reciprocating motion after moving to the end. When cleaning the dust, there is no need to carry the screen down for cleaning, which saves manual cleaning, improves cleaning efficiency, reduces the labor intensity of workers in cleaning, and improves cleaning efficiency.

[0022] 3. The screen is installed in the screen frame by rotating the screen shaft. When the dust removal is completed, open the pressing plate, pull the pull rope or compress the spring to reset the mushrooms automatically from the rear end to the front, making it convenient to pack the mushrooms. There is no need to manually use a wooden shovel to collect them. At the same time, it also avoids the damage of the mushrooms, improves the packaging efficiency, and reduces the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 It is an overall three-dimensional schematic diagram of the utility model.

[0025] Figure 2 It is an enlarged stereoscopic schematic diagram of the driving device of the utility model.

[0026] Figure 3 It is an enlarged schematic diagram of the baffle rotation connection of the utility model.

[0027] Figure 4 It is a structural schematic diagram of the support plate and the compression spring of the utility model.

[0028] Figure 5 It is a schematic diagram of the internal three-dimensional structure of the bottom shell of the utility model.

[0029] Reference numerals:

[0030] 1- bottom shell, 2- upper swing shaft, 3- lower swing shaft, 4- swing rod, 5- bidirectional screw, 6- guide rod, 7- sliding plate, 8- cleaning brush, 9- driving shell, 10- driving swing shaft, 11- driving plate, 12- eccentric shaft, 13- swing shaft, 14- vibration rod, 15- driving motor, 16- main bevel gear, 17- switching block, 18- fixed block, 19- sleeve, 20- left bevel gear, 21- right bevel gear, 2 2-left drive shaft, 23-right drive shaft, 24-reversing bevel gear, 25-screw bevel gear, 26-sliding groove, 27-sliding block, 28-adjusting screw, 29-adjusting sleeve, 30-screen frame, 31-screen shaft, 32-screen, 33-adjusting rod, 34-pressing plate, 35-support plate, 36-compression spring, 37-pull rope, 38-hinge, 39-baffle, 40-ash cleaning port, 41-mounting plate. DETAILED DESCRIPTION

[0031] The above and other technical contents, features and functions of the present invention are described in detail below with reference to the attached Figures 1 to 5 The details of the embodiments will be clearly presented. The contents mentioned in the following embodiments are all based on the drawings in the specification.

[0032] Various exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0033] The utility model discloses a dust removal device before mushroom packaging, comprising a bottom shell 1, the interior of the bottom shell 1 is a cavity, one end of which is reserved for a dust cleaning port 40, a screen device is swingably arranged at the upper end of the bottom shell 1, the size of the screen device is smaller than the bottom shell 1, so that the screened dust can fall into the bottom shell 1, upper swing shafts 2 are fixed at both sides of the screen device, lower swing shafts 3 are correspondingly fixed at both ends of the bottom shell 1, a swing rod 4 is rotatably sleeved between the corresponding upper swing shafts 2 and lower swing shafts 3, a bidirectional screw rod 5 is rotatably installed in the front and back directions inside the bottom shell 1, a bearing seat is installed at the intersection of the bidirectional screw rod 5 and the bottom shell 1, the bidirectional screw rod 5 is a thread with a positive spiral and a right spiral staggered, and can automatically reverse after the end head, guide rods 6 fixed in the bottom shell 1 are arranged on both sides of the bidirectional screw rod 5, a sliding plate 7 is threadedly connected to the bidirectional screw rod 5, and the two guide rods 6 penetrate the sliding plate 7. The two sides of the plate 7 allow the sliding plate 7 to be limited and slide normally. A cleaning brush 8 is fixed at the lower end of the sliding plate 7. The cleaning brush 8 contacts the surface of the bottom shell 1 and can clean the dust on the bottom shell 1 back and forth. A driving shell 9 is also fixedly connected to the rear end of the bottom shell 1. The end of the bidirectional screw rod 5 is connected to a driving device placed in the driving shell 9. The driving device can drive the bidirectional screw rod 5 to rotate. A driving swing shaft 10 is rotatably installed on one side of the driving shell 9. The driving swing shaft 10 penetrates the side wall of the driving shell 9. The end of the driving swing shaft 10 is fixed with a driving disk 11 placed outside the driving shell 9. An eccentric eccentric shaft 12 is fixed on the driving disk 11. A swing shaft 13 is also fixed to the outer side wall of the front end of the screening device. A vibration rod 14 is rotatably sleeved between the eccentric shaft 12 and the swing shaft 13. The driving device can be connected to the bidirectional screw rod 5 and the driving swing shaft 10 respectively through a switching mechanism.

[0034] When the mushrooms are to be dusted, the driving device causes the driving swing shaft 10 to rotate, the driving swing shaft 10 drives the driving disk 11 to rotate, the driving disk 11 drives the eccentric shaft 12 to rotate eccentrically, the eccentric shaft 12 pulls the swing shaft 13 to swing through the vibration rod 14, and the swing shaft 13 drives the screen device to swing under the swing of the swing rod 4, thereby realizing the swing screening and dust removal of the mushrooms.

[0035] When the dust of the screen device falls into the bottom shell 1 after vibration, the driving device drives the bidirectional screw rod 5 through the switching mechanism at an appropriate time according to the amount of dust that falls into the bottom shell 1. At this time, the driving swing shaft 10 will no longer rotate, and the bidirectional screw rod 5 starts to rotate. The bidirectional screw rod 5 drives the sliding plate 7 and the cleaning brush 8 to move in the bottom shell 1 to clean the dust to the front cleaning port 40 of the bottom shell 1. When it reaches the end, it will automatically perform reverse cleaning under the guidance of the bidirectional screw rod 5. It should be noted here that although the dust will be cleaned to the rear end of the bottom shell 1 in the reverse direction, the cleaning brush 8 is initially facing the cleaning port 40 at the front end. At this time, most of the dust has been cleaned out, and the dust cleaned in the reverse direction will be very small. Only after repeated use will the dust accumulate at the rear end of the bottom shell 1, but there will be no dust in the middle of the bottom shell 1. You only need to use a small shovel to shovel out the dust at the rear end of the bottom shell 1. If it is for the convenience of cleaning, cleaning ports can be opened on the two side walls of the rear end of the bottom shell 1.

[0036] Furthermore, the switching mechanism includes a driving motor 15 fixed in the driving shell 9 in the front-to-back direction, the driving motor 15 is connected to the power supply and the controller, the driving motor 15 is coaxially connected to the main bevel gear 16, a switching block is slidably installed in front of the main bevel gear 16, vertical fixed blocks 18 are symmetrically fixed on both sides of the switching block, a sleeve 19 is fixed above the fixed block 18, and a left bevel gear 20 and a right bevel gear 21 are rotatably installed on the inner side of the sleeve 19, and a fixed cylinder is fixed on the outer side of the left bevel gear 20 or the right bevel gear 21 for rotation connection, an annular groove is opened on the inner side wall of the sleeve 19, and a ring plate is fixed in the annular groove at the end of the fixed cylinder, so that the left bevel gear 20 or the right bevel gear 21 can rotate normally in the sleeve 19, and when the left bevel gear 20 or the right bevel gear 21 slides, the sleeve 19 can be driven to move together.

[0037] A left drive shaft 22 is coaxially inserted in the left bevel gear 20, and a right drive shaft 23 is coaxially inserted in the right bevel gear 21. The left bevel gear 20 can slide on the left drive shaft 22, and the right bevel gear 21 can slide on the right drive shaft 23. Specifically, key blocks are fixed on the left drive shaft 22 and the right drive shaft 23, and key slots are opened on the left bevel gear 20 and the right bevel gear 21, so that the left bevel gear 20 and the right bevel gear 21 can slide normally through the key slots and key blocks, and can also drive the left drive shaft 22 and the right drive shaft 23 to rotate normally.

[0038] The right drive shaft 23 is coaxially connected to the drive swing shaft 10, and can drive the drive swing shaft 10 to rotate normally. A reversing gear 24 is fixedly sleeved on the end of the left drive shaft 22, and the reversing gear 24 is meshed with a screw bevel gear 25 fixedly sleeved on the end of the bidirectional screw 5.

[0039] When screening is performed, the main bevel gear 16 engages with the right bevel gear 21, the driving motor 15 rotates to drive the main bevel gear 16 to rotate, the main bevel gear 16 engages with the right bevel gear 21 to rotate, and the right bevel gear 21 drives the right drive shaft 23 and the drive swing shaft 10 to rotate to achieve vibration screening of the screening device.

[0040] When cleaning dust, the switching block 17 is slid to the right, the right bevel gear 21 is disengaged from the main bevel gear 16, and the left bevel gear 20 is engaged with the main gear 16. At this time, the main bevel gear 16 engages with the left bevel gear 20 to rotate, and the left bevel gear 20 drives the left drive shaft 22 to rotate. The left bevel gear 20 drives the reversing gear 24 to rotate, and the reversing gear 24 engages with the lead screw bevel gear 25 to rotate, thereby cleaning dust.

[0041] Furthermore, in order to achieve sliding of the switching block 17 , a sliding groove 26 is opened in the bottom shell 1 , and a slider 27 is fixed to the lower end of the switching block 17 . The slider 27 can slide in the sliding groove 26 , thereby achieving sliding of the switching block 17 .

[0042] Furthermore, in order to realize the sliding and limiting of the switching block 17, a threaded hole is opened on the side wall of the driving shell 9, and an adjusting screw 28 is threadedly connected in the threaded hole. An adjusting clamping ring is fixed to the end of the adjusting screw 28, and an adjusting sleeve 29 is fixed on the side wall of the fixed block 18 on the right side. A slot is opened in the adjusting sleeve 29, and the adjusting clamping ring is rotatably placed in the slot, so that when the adjusting screw 28 is rotated, it can rotate in the adjusting sleeve 29, and when the adjusting screw 28 moves under the rotation of the threaded hole, it can pull or push the fixed block 18 to move, thereby realizing the movement of the switching block 17, and after the switching block 17 moves stably, it will not deviate or shake under the rotation of the driving motor 15.

[0043] Furthermore, the screen device includes a screen frame 30, an upper swing shaft 2 and a swing shaft 3 are fixed on the screen frame 30, a screen 32 placed in the screen frame 30 is rotatably installed at the front end of the screen frame 30 via a screen shaft 31, a vertical rotating hole is opened on the rear end side wall of the bottom shell 1, and the lower end of the rotating hole is connected to a clamping hole, an adjusting rod 33 is rotatably installed in the rotating hole, a clamping plate 34 is fixed to the lower end of the adjusting rod 33, the clamping plate 34 can rotate in the clamping hole, and the clamping plate 34 is placed on the upper end of the screen 32.

[0044] The screen 32 is blocked by a limit plate, and the screen 32 cannot rotate downward but can only rotate upward. By rotating the adjusting rod 33, the adjusting rod 33 drives the clamping plate 34 to detach from the screen 32. At this time, the screen 32 can rotate. By rotating the adjusting rod 33, the adjusting rod 33 drives the clamping plate 34 to press on the upper end of the screen 32, thereby limiting the rotation of the screen 32.

[0045] When the vibration dust removal of the mushrooms is completed, the adjusting rod 33 is rotated to allow the screen 32 to rotate, and the rear end of the screen 32 is lifted upward, so that the mushrooms slide forward from the rear end of the screen 32, and the mushrooms are automatically gathered forward without the need to use a wooden shovel, which makes it convenient to package the mushrooms.

[0046] Furthermore, in order to realize the rotation of the screen 32 , a support plate 35 placed below the screen 32 is fixed on the rear side of the screen frame 30 , and a plurality of compression springs 36 are installed between the support plate 35 and the screen 32 .

[0047] When the mushrooms need to be packed, the adjusting rod 33 is rotated, and the screen 32 automatically bounces upward and rotates under the action of the compression spring 36.

[0048] Furthermore, in order to realize the rotation of the screen 32 , a pull rope 37 is fixed at the rear end of the screen 32 , and the other end of the pull rope 37 is placed outside the front end of the screen frame 30 .

[0049] When the mushrooms need to be gathered, the adjusting rod 33 is rotated to pull the screen 32 upward and forward, so that the screen 32 is rotated and raised upward.

[0050] The compression spring 36 and the pull rope 37 may be used alone or together.

[0051] Furthermore, in order to prevent the mushrooms from falling off during vibration and facilitate packaging of the mushrooms when folded, a packaging opening is reserved at the front end of the bottom shell 1, and two baffles 39 are rotatably installed at the packaging opening through a hinge 38, and the two baffles 39 are provided with buckles.

[0052] When vibrating and screening, the baffle 39 is closed, and when the mushrooms are collected, the baffle 39 is opened.

[0053] Furthermore, a cleaning port 40 is reserved at the front end of the bottom shell 1. In order to achieve stable rotation of the bidirectional screw 5, a mounting plate 41 is fixed to the upper end of the cleaning port 40, and one end of the bidirectional screw 5 is mounted on the mounting plate 41 via a bearing seat.

[0054] Working principle:

[0055] Initially, the right bevel gear 21 engages with the main bevel gear 16. When the mushrooms are vibrated for dust removal, the drive motor 15 is turned on, the drive motor 15 drives the main bevel gear 16 to rotate, the main bevel gear 16 engages with the right bevel gear 21 to rotate, the right bevel gear 21 drives the right drive shaft 23 to rotate, the right drive shaft 23 drives the drive swing shaft 10 to rotate, the drive swing shaft 10 drives the drive disk 11 to rotate, the drive disk 11 drives the eccentric shaft 12 to rotate, the eccentric shaft 12 drives the vibration rod 14 to pull the swing shaft 13 to rotate, and the swing shaft 13 screens the screen 32 under the action of the swing rod 4.

[0056] When cleaning is required, the adjusting screw 28 is rotated, and the adjusting screw 28 moves and pulls the fixed block 18 to the right, so that the right bevel gear 21 falls off the main bevel gear 16, and the left bevel gear 20 engages with the main bevel gear 16. The rotation of the left bevel gear 20 drives the left drive shaft 22 to rotate, and the left drive shaft 22 drives the reversing bevel gear 24 to rotate. The reversing bevel gear 24 engages the lead screw bevel gear 25 to rotate, and the bidirectional lead screw 5 rotates to drive the cleaning brush 8 to perform reciprocating cleaning in the bottom shell 1 within the limit of the guide rod 6.

[0057] When the mushrooms need to be collected and packaged, the adjusting rod 33 is rotated to make the pressing plate 34 separate from the screen 32. Under the action of the compression spring 36, the screen 32 is rotated and raised upward, and the screen 32 is pulled by the pull rope 37 to make the mushrooms slide forward from the rear end to the front end, and the baffle 39 is opened to collect the mushrooms through the packaging port.

[0058] 1. The utility model drives the drive swing shaft to rotate through the driving device, and the drive swing shaft drives the drive disk to rotate. The eccentric shaft on the drive disk rotates eccentrically, and the eccentric shaft pulls the vibration rod to drive the swing shaft to move. The swing shaft enables the screen device to vibrate and screen, thereby replacing the workers' vibration screening, saving time, improving screening efficiency, and reducing the workers' labor intensity.

[0059] 2. When it is necessary to clean the dust, the switching mechanism is used to switch so that the driving device starts to drive the bidirectional screw rod. The bidirectional screw rod enables the sliding plate and the cleaning brush to move in the bottom shell. The cleaning brush cleans the dust in the bottom shell. The bidirectional screw rod enables the cleaning brush to automatically reverse and realize reciprocating motion after moving to the end. When cleaning the dust, there is no need to carry the screen down for cleaning, which saves manual cleaning, improves cleaning efficiency, reduces the labor intensity of workers in cleaning, and improves cleaning efficiency.

[0060] 3. The screen is installed in the screen frame by rotating the screen shaft. When the dust removal is completed, open the pressing plate, pull the pull rope or compress the spring to reset the mushrooms automatically from the rear end to the front, making it convenient to pack the mushrooms. There is no need to manually use a wooden shovel to collect them. At the same time, it also avoids the damage of the mushrooms, improves the packaging efficiency, and reduces the labor intensity of workers.

[0061] Although the content of the utility model has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the utility model. After reading the above content, various modifications and substitutions of the utility model will be obvious to those skilled in the art. Therefore, the protection scope of the utility model should be limited by the attached claims.

Claims

1. A dust removal device before mushroom packaging, characterized in that: The invention comprises a bottom shell (1), wherein a screen device is swingably mounted at the upper end of the bottom shell (1), upper swing shafts (2) are fixed on both sides of the screen device, lower swing shafts (3) are fixed on both ends of the bottom shell (1), a swing rod (4) is rotatably mounted between the upper swing shaft (2) and the lower swing shaft (3), a bidirectional screw rod (5) is rotatably mounted in the bottom shell (1), guide rods (6) arranged in the bottom shell (1) are fixed on both sides of the bidirectional screw rod (5), a sliding plate (7) is threadedly connected to the bidirectional screw rod (5), the guide rods (6) pass through both sides of the sliding plate (7), a cleaning brush (8) is fixed on the lower end of the sliding plate (7), and the bottom shell (1) is provided with a plurality of cleaning brushes. ) is connected to a driving housing (9) at its rear end, the end of the bidirectional screw rod (5) is connected to a driving device disposed in the driving housing (9), one side of the driving housing (9) is rotatably connected to a driving swing shaft (10), the end of the driving swing shaft (10) is fixed with a driving disk (11) disposed outside the driving housing (9), an eccentric shaft (12) is fixed to the driving disk (11), a swing shaft (13) is also fixed to the front end of the screen device, a vibration rod (14) is rotatably mounted between the eccentric shaft (12) and the swing shaft (13), and the driving device is respectively connected to the bidirectional screw rod (5) and the driving swing shaft (10) via a switching mechanism.

2. A dust removal device before mushroom packaging according to claim 1, characterized in that: The switching mechanism comprises a driving motor (15) disposed in a driving housing (9), the driving motor (15) being coaxially connected to a main bevel gear (16), a switching block (17) being slidably mounted in front of the main bevel gear (16), both ends of the switching block (17) being fixed with symmetrically arranged fixing blocks (18), a sleeve (19) being fixed on the fixing block (18), a left bevel gear (20) and a right bevel gear (21) being rotatably mounted on the inner sides of the two sleeves (19), and the left bevel gear (20) and the right bevel gear (21) being rotatably mounted on the inner sides of the two sleeves (19), respectively. ) is inserted into the left drive shaft (22), the left bevel gear (20) is slidably mounted on the left drive shaft (22), the right bevel gear (21) is inserted into the right drive shaft (23), the right bevel gear (21) is slidably mounted on the right drive shaft (23), the right drive shaft (23) is coaxially connected to the drive swing shaft (10), and a reversing bevel gear (24) is fixed to the end of the left drive shaft (22), and the reversing bevel gear (24) is meshed with a screw bevel gear (25) sleeved on the end of the bidirectional screw (5).

3. A dust removal device before mushroom packaging according to claim 2, characterized in that: The drive housing (9) is provided with a sliding groove (26), and the lower end of the switching block (17) is slidably installed in the sliding groove (26) via a sliding block (27).

4. A dust removal device before mushroom packaging according to claim 3, characterized in that: The drive housing (9) is provided with a threaded hole, an adjusting screw (28) is threadedly installed in the threaded hole, an adjusting sleeve (29) is fixed on the side wall of the fixed block (18), and the end of the adjusting screw (28) is rotatably installed in the adjusting sleeve (29).

5. The dust removal device before mushroom packaging according to claim 1 is characterized in that: The screen device comprises a screen frame (30), a screen (32) placed in the screen frame (30) being rotatably mounted on the front end of the screen frame (30) via a screen shaft (31), a rotation hole being provided at the rear end of the bottom shell (1), the rotation hole being connected to a clamping hole, an adjusting rod (33) being rotatably mounted in the rotation hole, and a clamping plate (34) being rotatable in the clamping hole being fixed at the lower end of the adjusting rod (33).

6. A dust removal device before mushroom packaging according to claim 5, characterized in that: A support plate (35) disposed below the screen (32) is fixed to the rear side of the screen frame (30), and a plurality of compression springs (36) are installed between the support plate (35) and the screen (32).

7. The dust removal device before mushroom packaging according to claim 5, characterized in that: A drawstring (37) is fixed to the rear end of the screen (32), and the other end of the drawstring (37) is placed outside the front end of the screen frame (30).

8. The dust removal device before mushroom packaging according to claim 5, characterized in that: The front end of the screen frame (30) is provided with a packaging opening, and a baffle (39) is hingedly connected to the packaging opening via a hinge (38).

9. The dust removal device before mushroom packaging according to claim 1, characterized in that: A dust cleaning port (40) is reserved at the front end of the bottom shell (1), a mounting plate (41) is fixed to the upper end of the dust cleaning port (40), and a bidirectional screw rod (5) is rotatably mounted on the mounting plate (41).

Images