Raisin processing and cleaning device with grading function

Abstract

The invention relates to the field of raisin cleaning equipment, in particular to a raisin processing and cleaning device with a grading function, which comprises a base, the top of the base is connected with a cleaning box, an upper screening net and a lower screening net are obliquely mounted in the middle of the cleaning box, and the diameter of the screening hole of the upper screening net is larger than that of the screening hole of the lower screening net. And receiving plates capable of moving left and right are arranged on the upper left side and the lower right side in the cleaning box correspondingly, the two receiving plates are located on the lower sides of the two screening nets correspondingly, and three collecting frames used for collecting raisins are placed at the top of the base from left to right at intervals. A disc rotates, an L-shaped slotting plate can be shifted through a shifting rod to drive a material receiving plate to shake left and right, so that raisins on the material receiving plate are flattened and washed, the height accumulation of the raisins is reduced, and the cleaning effect is improved; and through cooperation of a screening net and a material receiving plate, the cleaned raisins with different sizes can be put into the three collecting frames to be collected, and size grading of the raisins is achieved, so that the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of raisin cleaning equipment, and more particularly to a raisin processing and cleaning device with grading function. Background Technology

[0002] Raisins are a food product made by dehydrating grapes using the heat of the sun or artificial heating. Since grapes are generally dried in the open air during processing, some mud and dust accumulate on the surface of the raisins. Therefore, cleaning equipment is needed to clean the raisins to remove the impurities.

[0003] A search revealed a patent with publication number CN117044956A, which discloses a multi-stage cleaning device for raisins. The device includes a vibrating feeder box, a feeding belt at the output end of the vibrating feeder box, a cleaning box at the output end of the feeding belt, a filter box at the top of the cleaning box, the filter box being inclined at a certain angle, a water pump inside the filter box, and a water pipe connected to the input end of the water pump, extending into the cleaning box. Several sets of positioning frames are equidistantly installed inside the filter box.

[0004] Although the above-mentioned patent can clean raisins, it still has some shortcomings in actual use, such as: 1. It only separates water and raisins through the first and second filters, and cannot classify the raisins by size, which requires subsequent size classification of the raisins and reduces production efficiency; 2. It cannot flatten the raisins for rinsing, which easily leads to high accumulation of raisins and unsatisfactory cleaning effect. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and to propose a raisin processing and cleaning device with grading function that can both flatten and rinse raisins and grade them by size.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a raisin processing and cleaning device with grading function, comprising a base, a cleaning box connected to the top of the base, the left and right sides and the bottom of the cleaning box being open, a feeding hopper connected to the top right side of the cleaning box, two sieves installed at an angle in the middle of the cleaning box, the upper sieve having a larger sieve hole diameter than the lower sieve, a guide plate for guiding raisins to the upper sieve connected to the upper right side of the cleaning box, and receiving plates that can move left and right on the upper left and lower right sides of the cleaning box, the two receiving plates being located below the two sieves respectively, the top of the receiving plates being designed with an incline. Three high-pressure spray pipes are installed on both the front and back sides of the washing box from left to right. The water inlets of the high-pressure spray pipes extend outside the washing box. The high-pressure spray pipes on the left and right sides are located above the left and right receiving plates, respectively. The high-pressure spray pipe in the middle is located above the upper screening screen. Three collection frames for collecting raisins are placed on the top of the base from left to right. The lower front of the washing box has an inlet and outlet for the middle collection frame to enter and exit. The upper left and lower right sides of the washing box are rotatably connected to roller brushes via rotating shaft I. The two roller brushes are located on the upper sides of the two receiving plates. A drive mechanism is provided on the front of the washing box. The drive mechanism is used to drive the receiving plates to shake left and right. The drive mechanism can also drive rotating shaft I to rotate the roller brushes.

[0007] Preferably, the collection frame includes a frame body, a drain pipe, and a drain net. The drain pipe is connected to the bottom of the frame body, the drain net is connected to the inside of the frame body, and three guide grooves are spaced apart from left to right on the base for the drain pipe to enter and exit.

[0008] Preferably, the drive mechanism includes a rotating shaft II and a disc. The upper left and lower right sides of the front side of the cleaning tank are rotatably connected to the disc via the rotating shaft II. An L-shaped slotted plate is connected to the front side of the receiving plate, and the L-shaped slotted plate is slidably connected to the cleaning tank. A lever is connected to the eccentric position on the front side of the disc, and the lever is located in the slot of the L-shaped slotted plate. A motor is installed in the middle of the front side of the cleaning tank. The output shaft of the motor is rotatably connected to the rotating shaft II via a belt drive assembly I. A gear set is connected between the rotating shaft II and the rotating shaft I. The gear set consists of a large gear and a small gear.

[0009] Preferably, the cleaning box is equipped with a clearing mechanism for clearing the screening screen. The clearing mechanism includes a guide rod and a brush. The front side of the cleaning box has two inclined grooves, one above the other. The guide rod is connected in the inclined groove. The guide rod is slidably connected to the guide rod and can move left and right. The two brushes are slidably engaged with the two screening screens respectively. The bristles on the brushes are inserted into the screen holes of the screening screens from bottom to top. The front side of the cleaning box is equipped with a triggering component for driving the brushes to move left and right along the screening screens.

[0010] Preferably, the triggering component includes a rotating shaft III and a winding wheel. The front side of the cleaning tank is rotatably connected to two rotating shafts III, and a winding wheel is connected to the rotating shaft III. The two winding wheels are located on the lower side of two inclined grooves, respectively. The front side of the cleaning tank is rotatably connected to two fixed pulleys, and the two fixed pulleys are located on the upper side of the two winding wheels, respectively. Pull ropes are wound on both winding wheels. The two pull ropes pass over the two fixed pulleys and are connected to two brushes, respectively. Racks are connected to the right side of the left receiving plate and the left side of the right receiving plate. Spur gears are connected to both rotating shafts III. The two spur gears mesh with the two racks, respectively. A spring I is connected between the brush and the cleaning tank.

[0011] Preferably, the lower part of the washing box is provided with a leveling mechanism for spreading the raisins inside the frame. The leveling mechanism includes three sets of rotating shafts IV rotatably connected to the lower part of the washing box. The three sets of rotating shafts IV are located on the upper side of the three frames respectively. A lever is connected to the rotating shaft IV. The lever is located inside the washing box. The rightmost rotating shaft IV is connected to the right rotating shaft I through a belt drive assembly II. Each pair of adjacent rotating shafts IV is connected through a belt drive assembly III.

[0012] Preferably, the actuating frame includes a U-shaped sleeve connected to the rotating shaft IV, a U-shaped actuating rod slidably connected inside the U-shaped sleeve, and two springs II symmetrically connected between the U-shaped actuating rod and the U-shaped sleeve.

[0013] Preferably, the lower part of the cleaning tank is connected to two baffles, with the bottom of the left baffle contacting the top left side of the middle frame and the bottom of the right baffle contacting the top right side of the middle frame.

[0014] The beneficial effects of this invention are as follows: 1. The rotating disc, via a lever, can move the L-shaped slotted plate, causing the receiving plate to shake left and right, thus flattening the raisins on the receiving plate for rinsing, reducing the height of the raisins and improving the cleaning effect; through the cooperation of the screening screen and the receiving plate, the raisins of different sizes after washing can be placed into three collection boxes for collection, realizing the grading of raisins by size and improving production efficiency.

[0015] 2. The brush moves back and forth along the sieve screen to push the raisins stuck on the screen upwards, thus clearing the screen and preventing blockage, thereby improving the efficiency and effect of raisin grading. It can also wash the raisins on the screen, thereby improving the efficiency and effect of raisin cleaning.

[0016] 3. By rotating the rack, the raisins inside the frame can be spread out evenly, allowing them to drain on the draining net and preventing them from piling up in one place, thus enhancing the subsequent draining effect. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a partial three-dimensional structural schematic diagram of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the driving mechanism of the present invention.

[0020] Figure 4 This is a partial three-dimensional structural diagram of the driving mechanism of the present invention.

[0021] Figure 5 This is a schematic diagram of the installation of the unblocking mechanism of the present invention.

[0022] Figure 6 This is a three-dimensional structural diagram of the unblocking mechanism of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the flattening mechanism of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the toggle frame of the present invention.

[0025] Figure 9 This is a schematic diagram of the connection of the baffle of the present invention.

[0026] In the diagram: 1-Base, 2-Washing box, 21-Guide chute, 22-Inclined chute, 3-Feed hopper, 4-Screening screen, 5-Guide plate, 6-Receiving plate, 7-High-pressure spray pipe, 8-Collection frame, 81-Frame body, 82-Drain pipe, 83-Draining screen, 9-Rotating shaft I, 10-Roller brush, 111-Rotating shaft II, 112-Disc, 113-Lever, 114-L-shaped slotted plate, 115-Motor, 116-Belt drive assembly I, 11 7-Gear set, 121-Guide rod, 122-Brush, 123-Shaft III, 124-Winding wheel, 125-Fixed pulley, 126-Pull rope, 127-Rack, 128-Spur gear, 129-Spring I, 131-Shaft IV, 132-Actuating frame, 1321-U-shaped sleeve, 1322-U-shaped actuating rod, 1323-Spring II, 133-Belt drive assembly II, 134-Belt drive assembly III, 14-Baffle. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Example: A raisin processing and cleaning device with grading function, please refer to [link / reference]. Figures 1-4 The system includes a base 1, with a washing tank 2 connected to the top of the base 1. The washing tank 2 is open on the left, right, and bottom sides. A feed hopper 3 is connected to the top right side of the washing tank 2. Two sieves 4 are installed at an angle in the middle of the washing tank 2, with the upper sieve 4 having a larger mesh diameter than the lower sieve 4. A guide plate 5 for guiding raisins to the upper sieve 4 is connected to the upper right side of the washing tank 2. A receiving plate 6 that can move left and right is slidably connected to the upper left and lower right sides of the washing tank 2 via a sliding groove. The two receiving plates 6 are located below the two sieves 4, and the top of the receiving plates 6 is designed with an sloping surface, with the top of the receiving plates 6 closest to the sieve 4. Above the top of the receiving plate 6, away from the screening screen 4, three high-pressure spray pipes 7 are installed on both the front and back sides of the washing box 2 from left to right. The water inlets of the high-pressure spray pipes 7 extend outside the washing box 2. The high-pressure spray pipes 7 on the left and right sides are located above the left and right receiving plates 6 respectively, and the high-pressure spray pipe 7 in the middle is located above the upper screening screen 4. Three collection frames 8 for collecting raisins are placed on the top of the base 1 from left to right. The lower front side of the washing box 2 has an inlet and outlet for the middle collection frame 8 to enter and exit. The collection frame 8 includes a frame body 81, a drain pipe 82, and a drain net 83. The drain pipe 82 is connected to the bottom of the frame body 81, and the drain net 83 is connected inside the frame body 81. The base 1 is arranged from left to right. Three guide slots 21 are spaced apart to the right for the inlet and outlet of the drain pipe 82. Roller brushes 10 are rotatably connected to the upper left and lower right sides of the cleaning tank 2 via rotating shaft I9. Two roller brushes 10 are located above two receiving plates 6. A drive mechanism is provided on the front side of the cleaning tank 2. The drive mechanism is used to drive the receiving plates 6 to vibrate left and right. The drive mechanism can also drive rotating shaft I9 to rotate the roller brushes 10. The drive mechanism includes rotating shaft II111 and a disc 112. The disc 112 is rotatably connected to the upper left and lower right sides of the front side of the cleaning tank 2 via rotating shaft II111. An L-shaped slotted plate 114 is connected to the front side of the receiving plate 6. The L-shaped slotted plate 114 is slidably connected to the cleaning tank 2. The disc 112 is in front of... A lever 113 is connected to an eccentric position on the side. The lever 113 is located in the groove of the L-shaped slotted plate 114. A motor 115 is installed in the middle of the front side of the cleaning tank 2. The output shaft of the motor 115 is rotatably connected to the rotating shaft II 111 through a belt drive assembly I 116. The belt drive assembly I 116 consists of two pulleys and a belt. The two pulleys are respectively connected to the rotating shaft II 111 and the output shaft of the motor 115. The belt is sleeved between the two pulleys. A gear set 117 is connected between the rotating shaft II 111 and the rotating shaft I 9. The gear set 117 consists of a large gear and a small gear. The large gear is connected to the rotating shaft II 111, and the small gear is connected to the rotating shaft I 9. The large gear and the small gear mesh.

[0029] Raisins are fed into the washing tank 2 through the feed hopper 3. Guided by the guide plate 5, the raisins flow onto the upper screening screen 4. Raisins larger than the screen openings of the upper screening screen 4 slide down onto the left receiving plate 6 and then fall into the left collection frame 8 for collection. Raisins smaller than the screen openings of the upper screening screen 4 fall onto the lower screening screen 4. Raisins larger than the screen openings of the lower screening screen 4 slide down onto the right receiving plate 6 and then fall into the right collection frame 8 for collection. Raisins smaller than the screen openings of the lower screening screen 4 fall into the middle collection frame 8 for collection. This process achieves raisin size grading to improve production efficiency. By connecting the high-pressure spray pipe 7 to an external infusion device, clean water can be introduced into the high-pressure spray pipe 7 and sprayed onto the raisins to rinse them. The motor 115 drives the rotating shaft 111 to rotate through the belt drive assembly I 116, which in turn drives the lever 113 to rotate through the disc 112. The rotation of the lever 113 pushes the L-shaped slotted plate 114 to move the receiving plate 6 back and forth, which makes the receiving plate 6 shake left and right to flatten the raisins on it for rinsing, reducing the height of the raisins and improving the cleaning effect. The rotation of the rotating shaft II 111 drives the rotating shaft I 9 to rotate through the gear set 117, which makes the roller brush 10 rotate to brush the raisins on the receiving plate 6, ensuring that the raisins are cleaned and improving the cleaning quality of the raisins. Since the collection frame 8 is composed of a frame 81, a drain pipe 82 and a drain net 83, the drain net 83 can drain the raisins, further improving the cleaning quality of the raisins, and the drain pipe 82 can drain the water, preventing water from accumulating in the frame 81.

[0030] Please see Figures 5-6The cleaning tank 2 is equipped with a clearing mechanism for clearing the screening screens 4. The clearing mechanism includes a guide rod 121 and a brush 122. Two inclined grooves 22 are opened on the front side of the cleaning tank 2, and the guide rod 121 is connected inside the inclined grooves 22. A brush 122 that can move left and right is slidably connected to the guide rod 121. The two brushes 122 are slidably engaged with the two screening screens 4 respectively. The bristles on the brushes 122 are inserted into the screen holes of the screening screens 4 from bottom to top. A triggering component is provided on the front side of the cleaning tank 2 to drive the brushes 122 to move left and right along the screening screens 4. The triggering component includes a rotating shaft Ⅲ 123 and a winding wheel 124. Two rotating shafts Ⅲ 123 are rotatably connected to the front side of the cleaning tank 2, and a winding wheel 124 is connected to the rotating shaft Ⅲ 123. Two winding wheels 124 are located on the lower side of two inclined grooves 22. The front side of the cleaning box 2 is rotatably connected to two fixed pulleys 125, which are located on the upper side of the two winding wheels 124. Each winding wheel 124 is wound with a pull rope 126. The two pull ropes 126 pass over the two fixed pulleys 125 and are connected to the two brushes 122 respectively. The right side of the left receiving plate 6 and the left side of the right receiving plate 6 are both connected to racks 127. Each of the two rotating shafts III 123 is connected to a spur gear 128. The two spur gears 128 mesh with the two racks 127 respectively. A spring I 129 is sleeved on the guide rod 121. The spring I 129 abuts against the brushes 122 and the cleaning box 2.

[0031] When the receiving plate 6 moves left and right, it drives the rack 127 to move left and right, which in turn drives the spur gear 128 to drive the rotating shaft III 123 to rotate alternately in both directions. This causes the winding wheel 124 to rotate alternately in both directions, repeatedly winding and unwinding the pull rope 126. When the pull rope 126 is wound up, it pulls the brush 122 to move along the screening screen 4, and the spring I 129 is compressed accordingly. When the pull rope 126 is released, the brush 122 moves and resets along the screening screen 4 under the reset action of the spring I 129. This allows the brush 122 to move back and forth along the screening screen 4. The back and forth movement of the brush 122 along the screening screen 4 can push the raisins stuck on the screening screen 4 upwards to clear the screen 4 and prevent it from clogging, thereby improving the raisin grading efficiency and effect. It can also wash the raisins on the screening screen 4 to improve the raisin cleaning efficiency and effect.

[0032] Please see Figures 7-8The lower part of the washing tank 2 is provided with a leveling mechanism for spreading the raisins inside the frame 81. The leveling mechanism includes three sets of rotating shafts IV 131 rotatably connected to the lower part of the washing tank 2. The three sets of rotating shafts IV 131 are located on the upper side of the three frames 81 respectively. The rotating shafts IV 131 are arranged in pairs, and the two rotating shafts IV 131 in each pair are arranged left and right. A lever 132 is connected to the rotating shafts IV 131. The lever 132 is located inside the washing tank 2. The lever 132 includes a U-shaped sleeve 1321 connected to the rotating shafts IV 131. A U-shaped lever 1322 is slidably connected inside the U-shaped sleeve 1321. The U-shaped lever 1322 and the lever 1322 are connected to the rotating shafts IV 131. Two springs II1323 are symmetrically connected between the U-shaped sleeves 1321. The rightmost rotating shaft IV131 is connected to the right rotating shaft I9 via a belt drive assembly II133. The belt drive assembly II133 consists of two pulleys and a belt. The two pulleys are connected to the rightmost rotating shaft IV131 and the right rotating shaft I9, respectively. The belt is sleeved between the two pulleys. Each pair of adjacent rotating shafts IV131 is connected via a belt drive assembly III134. The belt drive assembly III134 consists of two pulleys and a belt. The pulleys are connected to rotating shafts IV131I, and the belt is sleeved between the two pulleys.

[0033] The rotation of the right-side pivot I9 drives the rightmost pivot IV131 to rotate via belt drive assembly II133, which in turn drives the remaining pivot IV131 to rotate via belt drive assembly III134. This allows the actuating frame 132 to rotate, spreading the raisins inside the frame 81 evenly so that they are laid flat on the draining net 83 for drainage, preventing them from piling up in one place and thus enhancing the subsequent drainage effect. The actuating frame 132 consists of a U-shaped sleeve 1321 and a U-shaped actuating rod 13... Composed of 22 and spring II 1323, as the number of raisins in the frame 81 increases, the U-shaped actuating rod 1322 can be gradually retracted into the U-shaped sleeve 1321 under the pushing action of the raisins. The spring II 1323 is then compressed. Under the action of the spring II 1323, the U-shaped actuating rod 1322 can maintain contact with the raisins to flatten them. In this way, the actuating frame 132 can adjust the contact state with the raisins in real time to ensure that the raisins are more evenly distributed in the frame 81.

[0034] Please see Figure 9 The lower part of the washing box 2 is connected to two baffles 14. The bottom of the left baffle 14 contacts the top left side of the middle frame 81, and the bottom of the right baffle 14 contacts the top right side of the middle frame 81. The baffles 14 can block and separate the raisins to ensure that the raisins after size grading fall accurately into the corresponding frame 81 for collection, thereby improving the accuracy of grading.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A raisin processing and cleaning device with grading function, comprising a base (1), a cleaning tank (2) connected to the top of the base (1), the left and right sides and the bottom of the cleaning tank (2) being open, and a feed hopper (3) connected to the top right side of the cleaning tank (2), characterized in that, Two sieves (4) are installed at an angle in the middle of the washing box (2). The diameter of the sieve hole of the upper sieve (4) is larger than that of the sieve hole of the lower sieve (4). A guide plate (5) for guiding raisins to the upper sieve (4) is connected to the upper right side of the washing box (2). A receiving plate (6) that can move left and right is provided on the upper left and lower right sides of the washing box (2). The two receiving plates (6) are located on the lower side of the two sieves (4) respectively. The top of the receiving plate (6) is designed with a slope. Three high-pressure spray pipes (7) are installed from left to right on both the front and back sides of the washing box (2). The water inlet of the high-pressure spray pipe (7) extends out of the washing box (2). The high-pressure spray pipes on the left and right sides are installed at intervals. The pipe (7) is located above the left and right receiving plates (6) respectively. The high-pressure spray pipe (7) in the middle is located above the upper screening screen (4). Three collection frames (8) for collecting raisins are placed at intervals from left to right on the top of the base (1). The front lower part of the washing box (2) has an inlet and outlet for the middle collection frame (8) to enter and exit. The upper left and lower right sides of the washing box (2) are rotatably connected to roller brushes (10) through the rotating shaft I (9). The two roller brushes (10) are located on the upper side of the two receiving plates (6) respectively. The front side of the washing box (2) is provided with a drive mechanism. The drive mechanism is used to drive the receiving plate (6) to shake left and right. The drive mechanism can also drive the rotating shaft I (9) to drive the roller brushes (10) to rotate.

2. The raisin processing and cleaning device with grading function according to claim 1, characterized in that, The collection box (8) includes a frame (81), a drain pipe (82) and a drain net (83). The drain pipe (82) is connected to the bottom of the frame (81), and the drain net (83) is connected inside the frame (81). There are three guide slots (21) on the base (1) spaced from left to right for the drain pipe (82) to enter and exit.

3. The raisin processing and cleaning device with grading function according to claim 1, characterized in that, The drive mechanism includes a rotating shaft II (111) and a disc (112). The upper left and lower right sides of the front side of the cleaning box (2) are rotatably connected to the disc (112) via the rotating shaft II (111). The front side of the receiving plate (6) is connected to an L-shaped slotted plate (114). The L-shaped slotted plate (114) is slidably connected to the cleaning box (2). A lever (113) is connected to the eccentric position on the front side of the disc (112). The lever (113) is located in the slot of the L-shaped slotted plate (114). A motor (115) is installed in the middle of the front side of the cleaning box (2). The output shaft of the motor (115) is rotatably connected to the rotating shaft II (111) via a belt drive assembly I (116). A gear set (117) is connected between the rotating shaft II (111) and the rotating shaft I (9). The gear set (117) consists of a large gear and a small gear set (117).

4. The raisin processing and cleaning device with grading function according to claim 1, characterized in that, The cleaning box (2) is equipped with a dredging mechanism for dredging the screening screen (4). The dredging mechanism includes a guide rod (121) and a brush (122). The front side of the cleaning box (2) has two inclined grooves (22) with upper and lower openings. The guide rod (121) is connected in the inclined groove (22). The brush (122) that can move left and right is slidably connected on the guide rod (121). The two brushes (122) are slidably engaged with the two screening screens (4) respectively. The bristles on the brush (122) are inserted into the screen holes of the screening screen (4) from bottom to top. The front side of the cleaning box (2) is equipped with a trigger component for driving the brush (122) to move left and right along the screening screen (4).

5. A raisin processing and cleaning device with grading function according to claim 4, characterized in that, The triggering assembly includes a rotating shaft III (123) and a winding wheel (124). The front of the cleaning tank (2) is rotatably connected to two rotating shafts III (123), with a winding wheel (124) connected to each shaft III (123). The two winding wheels (124) are located below two inclined grooves (22). The front of the cleaning tank (2) is rotatably connected to two fixed pulleys (125), with each fixed pulley (125) located above the two winding wheels (124). Each of the two pull ropes (126) is wound around a pull rope. The two pull ropes (126) pass over two fixed pulleys (125) and are connected to two brushes (122). The right side of the left receiving plate (6) and the left side of the right receiving plate (6) are connected to racks (127). The two rotating shafts III (123) are connected to spur gears (128). The two spur gears (128) mesh with the two racks (127) respectively. A spring I (129) is connected between the brush (122) and the cleaning box (2).

6. A raisin processing and cleaning device with grading function according to claim 2, characterized in that, The lower part of the washing box (2) is provided with a flattening mechanism for flattening the raisins in the frame (81). The flattening mechanism includes three sets of rotating shafts IV (131) rotatably connected to the lower part of the washing box (2). The three sets of rotating shafts IV (131) are located on the upper side of the three frames (81). A lever (132) is connected to the rotating shaft IV (131). The lever (132) is located inside the washing box (2). The rightmost rotating shaft IV (131) is connected to the right rotating shaft I (9) through a belt drive assembly II (133). Each pair of adjacent rotating shafts IV (131) is connected through a belt drive assembly III (134).

7. A raisin processing and cleaning device with grading function according to claim 6, characterized in that, The actuating frame (132) includes a U-shaped sleeve (1321) connected to the rotating shaft IV (131), and a U-shaped actuating rod (1322) is slidably connected inside the U-shaped sleeve (1321). Two springs II (1323) are symmetrically connected between the U-shaped actuating rod (1322) and the U-shaped sleeve (1321).

8. A raisin processing and cleaning device with grading function according to claim 2, characterized in that, The bottom of the cleaning tank (2) is connected to two baffles (14) on the left and right. The bottom of the left baffle (14) contacts the top left side of the middle frame (81), and the bottom of the right baffle (14) contacts the top right side of the middle frame (81).

Images