Self-cleaning rice turning and mixing device

Abstract

The utility model discloses a self -cleaning formula paddy material mixing device relates to paddy material mixing equipment technical field, including base, the base is provided with adjusting groove, the adjusting groove is connected with transmission case in height sliding, be provided with drive assembly in transmission case, the utility model discloses a reset spring is elastically connected between the limiting slide bar and the limiting slide sleeve with the cleaning scraper, when the mixing bucket rises, can compress reset spring, make the lower wall of cleaning scraper and the inner bottom wall of mixing bucket keep close adhesion, at the same time, the cooperation of adjusting telescopic link and tension spring can make the vertical section of cleaning scraper automatic close adhesion the lateral wall of mixing bucket. This elasticity self -adaptation design can effectively compensate the barrel body deformation of mixing bucket processing tolerance and long -term use, overcomes the defect that the cleaning effect is poor in the rigid scraper structure of the scraper and the barrel wall close adhesion, and will not cause rigid damage to the inner wall of the barrel.

Description

Technical Field

[0001] This utility model relates to the technical field of rice turning and mixing equipment, specifically a self-cleaning rice turning and mixing device. Background Technology

[0002] Rice mixing is a crucial step in grain processing. Mixing different varieties of rice in the correct proportions can improve the taste of the rice and optimize processing quality. Currently, rice mixing devices generally use a rotating stirring paddle to turn the rice over. However, in actual use, rice particles are small and have a certain degree of adhesion. During the turning process, the rice easily sticks to the inner and bottom walls of the mixing tank. After mixing, the rice stuck to the tank walls is difficult to detach on its own, which not only wastes materials but also causes the residual rice to deteriorate and mold if stored in the tank for a long time, affecting the hygiene and quality of subsequent mixing and processing. To address this issue, some mixing equipment has incorporated scraper structures into the mixing components, attempting to clean the tank walls simultaneously during mixing. However, existing scrapers are mostly rigidly connected, making it difficult for them to maintain a tight fit with the tank walls when there are dimensional tolerances in the mixing tank manufacturing process or when the tank body deforms after long-term use, significantly reducing the cleaning effect. Furthermore, the installation and disassembly of the mixing components are inconvenient, and the replacement of the mixing tank is cumbersome, impacting the equipment's efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a self-cleaning rice turning and mixing device. It solves the technical problems of existing devices where the scrapers are mostly rigidly connected, making it difficult for the scrapers to maintain a tight fit with the barrel wall when there are dimensional tolerances in the mixing barrel manufacturing process or when the barrel body deforms after long-term use, resulting in a significant reduction in cleaning effect. In addition, the installation and disassembly of the stirring components are inconvenient, and the replacement operation of the mixing barrel is relatively cumbersome, affecting the efficiency of equipment use.

[0004] To achieve the above objectives, this utility model provides the following technical solution: A self-cleaning rice turning and mixing device includes a base with an adjustment groove. A transmission box is slidably connected along the height of the adjustment groove. A drive assembly is installed inside the transmission box, and a mixing tank is mounted on the drive assembly. The device also includes: an anti-rotation telescopic rod fixedly installed on the upper wall of the base and adjacent to the adjustment groove; a connecting platform fixedly installed at the drive end of the anti-rotation telescopic rod; a stirring base slidably connected along the length of the connecting platform; a stirring assembly elastically connected along the height of the drive end of the stirring base; two tension springs fixedly connected between the stirring assembly and the drive end of the anti-rotation telescopic rod; an adjustment telescopic rod fixedly installed at the drive end of the anti-rotation telescopic rod, with its driving direction the same as the sliding direction of the stirring assembly along the connecting platform; a wedge fixedly installed on the lower wall of the transmission box; and an adjustment assembly adapted to the wedge provided on the side wall of the adjustment groove.

[0005] Preferably, the driving assembly includes: a drive motor, fixedly installed at the center of the bottom wall of the transmission box, with a turntable rotatably connected to the upper end of the transmission box; a positioning platform, fixedly installed at the center of the turntable, with a plurality of evenly distributed limiting blocks fixedly installed on the upper wall of the turntable, and a bottom positioning groove for the mixing tank being inserted and adapted to the positioning platform and the limiting blocks on the lower wall; and a bevel gear seat ring, fixedly installed on the lower wall of the positioning platform and arranged coaxially with the positioning platform, with a drive bevel gear meshing with the bevel gear seat ring fixedly installed at the drive end of the drive motor.

[0006] Preferably, the stirring assembly includes: a limiting slide rod, the lower wall of which is fixedly fitted with a limiting ring and fixedly installed at the center of the lower wall of the stirring base; a limiting sleeve is fitted on the outer wall of the limiting slide rod, the top end of the limiting sleeve engaging with the limiting ring; a plurality of limiting sliders are fixedly installed on the outer wall of the limiting slide rod and evenly distributed; the top end of the limiting sleeve has a limiting groove adapted to the sliding of the limiting sliders; a return spring is fixedly installed between the lower wall of the limiting slide rod and the bottom wall of the limiting sleeve; and a cleaning scraper is fixedly installed on the lower wall of the limiting sleeve, with a plurality of evenly distributed stirring blades fixedly installed on the cleaning scraper.

[0007] Preferably, the connecting platform has a slide rail along its length, and a load-bearing slider adapted to the slide rail is fixedly installed on the upper end of the stirring base; two sets of spring fixing brackets are respectively fixedly installed on the drive end of the anti-rotation telescopic rod and on both sides of the stirring base, and the two sets of spring fixing brackets are respectively fixedly connected to the two ends of two tension springs.

[0008] Preferably, the bottom wall of the mixing tank is provided with a rounded chamfer, and the lower wall of the cleaning scraper is provided with an arc edge that matches the rounded chamfer.

[0009] Preferably, the adjustment assembly includes: a servo electric cylinder, fixedly installed in the base and extending along the side wall of the adjustment groove; a positioning frame, fixedly installed at the drive end of the servo electric cylinder, the side wall of the positioning frame being rotatably connected to an adjustment roller, the adjustment roller having an axial limiting groove along the axial direction, the axial limiting groove being adapted to the wedge block for limiting, and the side wall of the positioning frame also being rotatably connected to a load-bearing roller, the load-bearing roller contacting the bottom wall of the adjustment groove.

[0010] Preferably, the sidewall of the adjusting groove is provided with a plurality of evenly distributed guide grooves, and the outer sidewall of the transmission box is fixedly installed with a plurality of guide rods that are slidably adapted to the guide grooves.

[0011] This utility model provides a self-cleaning rice turning and mixing device, which has the following beneficial effects: 1. This utility model uses a cleaning scraper that is elastically connected to the mixing base and a stirring paddle that is fixedly installed on the cleaning scraper. This allows the cleaning scraper to continuously scrape off the sticky rice grains on the walls and bottom of the mixing tank when the mixing tank rotates. Mixing and cleaning are carried out simultaneously, avoiding the accumulation and deterioration of residual materials in the tank after mixing.

[0012] 2. This utility model uses a return spring to elastically connect the cleaning scraper between the limiting slide rod and the limiting slide sleeve. When the mixing tank rises, it compresses the return spring, ensuring that the lower wall of the cleaning scraper is in close contact with the inner bottom wall of the mixing tank. Simultaneously, the adjustment of the telescopic rod and the tension spring allows the vertical section of the cleaning scraper to automatically adhere to the side wall of the mixing tank. This elastic adaptive design effectively compensates for manufacturing tolerances and deformation of the mixing tank caused by long-term use, overcoming the shortcomings of existing rigid scraper structures where the scraper does not adhere tightly to the tank wall and the cleaning effect is poor, without causing rigid damage to the inner wall of the tank.

[0013] 3. This utility model achieves rapid positioning and disassembly of the mixing tank through the insertion and cooperation of the positioning platform, the limiting block, and the positioning groove at the bottom of the tank; the anti-rotation telescopic rod drives the stirring component to rise and fall, and the adjustment component drives the mixing tank to rise and fall, so that the process of adjusting the contact between the cleaning scraper and the bottom wall of the mixing tank is automated, eliminating the need for repeated manual adjustments, greatly simplifying the operation process and improving the efficiency of the equipment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 for Figure 1 A half-section view; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 This is a schematic diagram showing the connection between the transmission box and the guide groove of this utility model; Figure 5 This is a schematic diagram showing the connection between the mixing tank and the turntable of this utility model; Figure 6 This is a schematic diagram showing the connection between the connecting platform and the stirring base of this utility model.

[0015] In the diagram: 1. Base; 2. Adjustment groove; 3. Transmission box; 4. Mixing tank; 5. Anti-rotation telescopic rod; 6. Connecting platform; 7. Stirring base; 8. Tension spring; 9. Adjustment telescopic rod; 10. Wedge block; 11. Drive motor; 12. Turntable; 13. Positioning platform; 14. Limiting block; 15. Tank bottom positioning groove; 16. Conical tooth seat ring; 17. Drive conical tooth; 18. Limiting slide rod; 19. Limiting ring; 20. Limiting sleeve; 21. Limiting slider; 23. Return spring; 24. Cleaning scraper; 25. Stirring paddle; 26. Slide rail; 27. Load-bearing slider; 28. Spring fixing frame; 29. ​​Rounded chamfer; 30. Servo electric cylinder; 31. Positioning frame; 32. Adjusting roller; 33. Axial limiting groove; 34. Load-bearing roller; 35. Guide groove; 36. Guide rod. Detailed Implementation

[0016] 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.

[0017] like Figure 1-6 As shown, a self-cleaning rice turning and mixing device includes a base 1, and an adjustment groove 2 is provided on the upper wall of the base 1; a transmission box 3 is slidably connected in the height direction inside the adjustment groove 2, and a number of guide rods 36 are fixedly installed on the outer side wall of the transmission box 3. The four side walls of the adjustment groove 2 are provided with a corresponding number of guide grooves 35. The guide rods 36 and the guide grooves 35 are slidably matched to ensure the straightness of the vertical movement of the transmission box 3. like Figure 5 As shown, a drive assembly is installed inside the transmission box 3 to drive the mixing tank 4 to rotate. The drive assembly includes a drive motor 11, a turntable 12, a positioning platform 13, four limit blocks 14, a bevel gear seat 16, and a drive bevel gear 17. The drive motor 11 is a geared motor and is fixedly installed at the center of the bottom wall of the transmission box 3. The upper end of the transmission box 3 is rotatably connected to the circular turntable 12 via bearings. A cylindrical positioning platform 13 is fixedly installed at the center of the upper wall of the turntable 12. Four limit blocks 14 are evenly fixedly installed along the circumferential direction on the upper wall of the turntable 12. Positioning block 14, the lower wall of mixing tank 4 is provided with a central positioning groove and four side positioning grooves, which together form the bottom positioning groove 15 of the tank, which is respectively inserted and adapted to the positioning platform 13 and the four limiting blocks 14 to ensure that the mixing tank 4 can rotate synchronously with the turntable 12 and will not rotate relative to each other; the bevel gear seat ring 16 is fixedly installed on the lower wall of the positioning platform 13 and is arranged coaxially with the positioning platform 13; the drive end of the drive motor 11 extends upward and is fixedly installed with a drive bevel gear 17, which meshes with the bevel gear seat ring 16 for transmission.

[0018] like Figure 6As shown, an anti-rotation telescopic rod 5 is fixedly installed on the upper wall of the base 1. The anti-rotation telescopic rod 5 can be driven by an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder. The anti-rotation telescopic rod 5 is located on one side of the adjustment groove 2 and can only extend and retract along the height direction without rotation. A horizontally set connecting platform 6 is fixedly installed at the driving end of the anti-rotation telescopic rod 5. A T-shaped slide rail 26 is opened on the upper wall of the connecting platform 6 along the length direction. A T-shaped load-bearing slider 27 is fixedly installed at the lower end of the stirring base 7. The load-bearing slider 27 is slidably adapted to the slide rail 26, so that the stirring base 7 can slide along the length direction of the connecting platform 6.

[0019] like Figure 3 As shown, a vertically downward limiting slide rod 18 is fixedly installed at the center of the lower wall of the stirring base 7, and a limiting ring 19 is fixedly installed on the lower wall of the limiting slide rod 18; a limiting sleeve 20 is sleeved on the outer wall of the limiting slide rod 18, and the inner diameter of the top end of the limiting sleeve 20 is smaller than the outer diameter of the limiting ring 19, which limits and cooperates with the limiting ring 19 to prevent the limiting sleeve 20 from falling off the limiting slide rod 18; four limiting sliders 21 are evenly fixedly installed on the outer wall of the limiting slide rod 18 along the circumferential direction, and four limiting grooves are correspondingly opened at the top end of the limiting sleeve 20, which slides and adapts to the limiting grooves to prevent relative rotation between the limiting sleeve 20 and the limiting slide rod 18; a return spring 23 is fixedly installed between the lower wall of the limiting slide rod 18 and the inner bottom wall of the limiting sleeve 20 to provide downward elastic force for the limiting sleeve 20.

[0020] like Figure 6 As shown, an L-shaped cleaning scraper 24 is fixedly installed on the lower wall of the limiting sleeve 20. The vertical section of the cleaning scraper 24 is parallel to the side wall of the mixing tank 4, and the horizontal section is parallel to the bottom wall of the mixing tank 4. The lower wall of the horizontal section of the cleaning scraper 24 has an arc edge that matches the rounded chamfer 29 of the inner bottom wall of the mixing tank 4, ensuring that it can completely fit the rounded corner of the bottom of the tank. Several evenly distributed stirring paddles 25 are fixedly installed on the inner side wall of the cleaning scraper 24. like Figure 6 As shown, two tension springs 8 are connected between the drive end of the anti-rotation telescopic rod 5 and the stirring base 7. The two tension springs 8 are symmetrically arranged on both sides of the connecting platform 6. Spring fixing brackets 28 are fixedly installed on the drive end of the anti-rotation telescopic rod 5 and the two side walls of the stirring base 7, respectively. The two ends of the tension springs 8 are respectively hooked on the corresponding spring fixing brackets 28, providing the stirring base 7 with a pulling force in the direction of the anti-rotation telescopic rod 5. The adjusting telescopic rod 9 is fixedly installed on the drive end of the anti-rotation telescopic rod 5, with its drive end facing the stirring base 7, and is used to push the stirring base 7 to slide along the slide 26.

[0021] like Figure 4As shown, a wedge 10 is fixedly installed at the center of the lower wall of the transmission box 3, with the inclined surface of the wedge 10 facing the side wall of the adjustment groove 2; the side wall of the adjustment groove 2 is provided with an adjustment assembly for driving the transmission box 3 to move up and down; the adjustment assembly includes a servo cylinder 30, a positioning frame 31, an adjustment roller 32, and a load-bearing roller 34; the servo cylinder 30 is horizontally fixedly installed inside the base 1, with its driving end extending into the adjustment groove 2; the positioning frame 31 is fixedly installed at the driving end of the servo cylinder 30, and its side wall is rotatably connected to the adjustment roller 32 through a bearing; the outer circumferential surface of the adjustment roller 32 is provided with an axial limiting groove 33 along the axial direction, and the lower end of the wedge 10 is embedded in the axial limiting groove 33 and rolls in contact with the adjustment roller 32; the lower wall of the positioning frame 31 is rotatably connected to the load-bearing roller 34 through a bearing, and the load-bearing roller 34 rolls in contact with the bottom wall of the adjustment groove 2 and bears the weight of the positioning frame 31.

[0022] Specific First, the operator places the empty mixing tank 4 on the turntable 12, aligning the bottom positioning groove 15 on the lower wall of the mixing tank 4 with the positioning platform 13 and the limiting block 14 on the turntable 12 and inserting them into place. Then, start the telescopic rod 9. The telescopic rod 9 extends and pushes the stirring base 7 forward along the slide 26, and the tension spring 8 is stretched; until the stirring base 7 drives the cleaning scraper 24 past the edge of the mixing tank 4 and is located directly above the mixing tank 4. Then, the anti-rotation telescopic rod 5 is activated, which drives the connecting platform 6 and the mixing assembly to move downwards. When the anti-rotation telescopic rod 5 descends to the lowest point, the cleaning scraper 24 is located inside the mixing tank 4, but does not contact the bottom wall of the mixing tank 4. Then, the servo cylinder 30 is activated, which drives the positioning frame 31 to move forward. The adjusting roller 32 on the positioning frame 31 rolls along the inclined surface of the wedge block 10, converting the horizontal thrust into vertical lift, which drives the transmission box 3 to move upward along the guide groove 35. The transmission box 3 drives the mixing tank 4 to rise synchronously through the turntable 12. When the bottom wall of the mixing tank 4 contacts the lower wall of the cleaning scraper 24, the continued rise will compress the return spring 23, causing the limiting sleeve 20 to slide upward along the limiting slide rod 18. When the limiting sleeve 20 rises to the set position, it means that the lower end of the cleaning scraper 24 is completely in contact with the bottom wall of the mixing tank 4, and the servo cylinder 30 stops and self-locks. Then adjust the telescopic rod 9 to slowly reset. Under the rebound force of the tension spring 8, the stirring base 7 slides along the slide 26 toward the anti-rotation telescopic rod 5 until the vertical section of the cleaning scraper 24 is limited by the side wall of the mixing tank 4 and completely adheres to the side wall. Finally, the different varieties of rice weighed according to the ratio are added into the mixing tank 4, and the drive motor 11 is started. The drive motor 11 drives the turntable 12 to rotate through the drive bevel gear 17 and bevel gear seat 16. The turntable 12 drives the mixing tank 4 to rotate synchronously through the limit block 14. When the mixing tank 4 rotates, the fixed stirring paddle 25 stirs and mixes the rice in the tank, while the cleaning scraper 24, which is in close contact with the tank wall, scrapes off the rice adhering to the tank wall and bottom wall, so as to achieve the simultaneous stirring and cleaning. After mixing is complete, turn off the drive motor 11; start the anti-rotation telescopic rod 5 to rise, driving the stirring component to exit from the mixing tank 4; then remove the mixing tank 4 from the turntable 12 and pour out the mixed rice; finally start the servo electric cylinder 30 to reset, driving the transmission box 3 and the mixing tank 4 to descend to the initial position, ready for the next mixing.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-cleaning rice turning and mixing device, characterized in that, The system includes a base (1), which has an adjustment groove (2). A transmission box (3) is slidably connected to the adjustment groove (2) along its height. A drive assembly is installed inside the transmission box (3), and a mixing tank (4) is installed on the drive assembly. The system also includes: An anti-rotation telescopic rod (5) is fixedly installed on the upper wall of the base (1) and adjacent to the adjustment groove (2). A connecting platform (6) is fixedly installed on the driving end of the anti-rotation telescopic rod (5). A stirring base (7) is slidably connected to the connecting platform (6) along the length direction. A stirring assembly is elastically connected to the driving end of the stirring base (7) along the height direction. Two tension springs (8) are fixedly connected between the stirring assembly and the driving end of the anti-rotation telescopic rod (5). Adjust the telescopic rod (9), which is fixedly installed at the drive end of the anti-rotation telescopic rod (5), and the driving direction is the same as the sliding direction of the stirring assembly along the connecting table (6); A wedge (10) is fixedly installed on the lower wall of the transmission box (3), and an adjustment component adapted to the wedge (10) is provided on the side wall of the adjustment groove (2).

2. The self-cleaning rice turning and mixing device according to claim 1, characterized in that, The driving component includes: A drive motor (11) is fixedly installed at the center of the bottom wall of the transmission box (3), and a turntable (12) is rotatably connected to the upper end of the transmission box (3). The positioning platform (13) is fixedly installed at the center of the turntable (12). Several evenly distributed limiting blocks (14) are fixedly installed on the upper wall of the turntable (12). The bottom positioning groove (15) of the mixing tank (4) is opened on the lower wall and is compatible with the positioning platform (13) and the limiting blocks (14). A bevel gear seat (16) is fixedly installed on the lower wall of the positioning table (13) and arranged coaxially with the positioning table (13). The drive end of the drive motor (11) is fixedly installed with a drive bevel gear (17) that meshes with the bevel gear seat (16).

3. The self-cleaning rice turning and mixing device according to claim 1, characterized in that, The stirring assembly includes: The limiting slide rod (18) has a limiting ring (19) fixedly installed on its lower wall and fixedly installed at the center of the lower wall of the stirring base (7). The limiting slide rod (18) is fitted with a limiting sleeve (20) on its outer wall. The top of the limiting sleeve (20) is matched with the limiting ring (19). Several limiting sliders (21) are fixedly installed on the outer wall of the limiting slider (18) and are evenly distributed. The top of the limiting sleeve (20) is provided with a limiting groove that is adapted to the sliding of the limiting slider (21). A return spring (23) is fixedly installed between the lower wall of the limiting slider (18) and the bottom wall of the limiting sleeve (20). A cleaning scraper (24) is fixedly installed on the lower wall of the limiting sleeve (20), and several evenly distributed stirring paddles (25) are fixedly installed on the cleaning scraper (24).

4. The self-cleaning rice turning and mixing device according to claim 3, characterized in that, The connecting platform (6) has a slide (26) along its length, and the upper end of the stirring base (7) is fixedly installed with a load-bearing slider (27) that is compatible with the slide (26). Two sets of spring fixing brackets (28) are fixedly installed on the drive end of the anti-rotation telescopic rod (5) and on both sides of the stirring base (7). The two sets of spring fixing brackets (28) are fixedly connected to the two ends of the two tension springs (8).

5. The self-cleaning rice turning and mixing device according to claim 3, characterized in that, The bottom wall of the mixing tank (4) is provided with a rounded chamfer (29), and the lower wall of the cleaning scraper (24) is provided with an arc edge that matches the rounded chamfer (29).

6. The self-cleaning rice turning and mixing device according to claim 1, characterized in that, The adjustment component includes: The servo electric cylinder (30) is fixedly installed in the base (1) and extends along the side wall of the adjustment groove (2); The positioning frame (31) is fixedly installed on the drive end of the servo electric cylinder (30). The side wall of the positioning frame (31) is rotatably connected to the adjusting roller (32). The adjusting roller (32) is provided with an axial limiting groove (33) along the axial direction. The axial limiting groove (33) is matched with the wedge block (10) for limiting. The side wall of the positioning frame (31) is also rotatably connected to the load-bearing roller (34). The load-bearing roller (34) is in contact with the bottom wall of the adjusting groove (2).

7. The self-cleaning rice turning and mixing device according to claim 1, characterized in that, The side wall of the adjustment groove (2) is provided with several evenly distributed guide grooves (35), and the outer side wall of the transmission box (3) is fixedly installed with several guide rods (36) that are slidably adapted to the guide grooves (35).

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