Flue-cured tobacco seedling raising hole pressing roller cleaning device
By setting a cleaning unit consisting of a cleaning roller and a brush on the cavitation roller, the problem of substrate adhesion on the cavitation roller is solved, resulting in better cavitation effect and resource utilization.
Patent Information
- Application Number
- CN202520428097.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-12
AI Technical Summary
The existing cavitation rollers cause the matrix to adhere during the cavitation process, affecting the cavitation quality and resulting in poor subsequent treatment effects.
Design a cleaning unit that includes a cleaning roller and a brush. The cleaning roller contacts the pressure roller to clean the adhering matrix and collect it into a receiving box to prevent it from spilling again.
This improved the effectiveness of the pressure treatment, avoided substrate waste and spillage, and ensured the cleanliness and uniformity of the seedling tray holes.
Smart Images

Figure CN223932061U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cleaning device for a tobacco seedling pressing roller, belonging to the field of seedling tray sowing technology. Background Technology
[0002] In agricultural production, especially in flue-cured tobacco cultivation, seed tray sowing is a common seedling method. Seed tray sowing refers to the precise sowing of seeds into the individual cells of a seedling tray, allowing them to germinate and grow into uniform and robust seedlings, laying the foundation for subsequent transplanting and high-quality flue-cured tobacco yield. Before sowing in the seed tray, substrate needs to be filled into the cells and then compacted. Currently, compaction is mainly achieved by rotating a pressing roller mounted on a conveyor platform. However, in actual production, the applicant has found that substrate often adheres to the pressing roller during the pressing process, which affects the subsequent pressing quality, necessitating research and improvement. Utility Model Content
[0003] Based on the above, this utility model provides a cleaning device for the pressing roller of flue-cured tobacco seedlings to overcome the shortcomings of the prior art.
[0004] The technical solution of this utility model is: a cleaning device for tobacco seedling pressing rollers, comprising:
[0005] The cavitation unit includes a carrying conveyor table, cavitation rollers mounted on the carrying conveyor table, and multiple rows of cavitation blocks formed circumferentially on the cavitation rollers;
[0006] The cleaning unit includes a cleaning roller mounted on a conveyor platform, a brush mounted on the cleaning roller, and a receiving box located below the cleaning roller. The brush is configured to contact the pressing roller.
[0007] In one example, the cavitation unit further includes a cavitation frame, the cavitation roller is rotatably mounted on the cavitation frame, and one end of the cavitation roller is connected to a drive mechanism, while the other end is provided with a first transmission wheel; the cleaning unit further includes a cleaning frame, the cleaning roller is rotatably mounted on the cleaning frame, and one end of the cleaning roller is provided with a second transmission wheel, which is connected to the first transmission wheel via a transmission belt.
[0008] In one example, the cleaning unit is located on the front and / or rear side of the pressure roller.
[0009] In one example, the receiving box includes a bottom groove, a vertical section, and a top cover. The bottom groove is recessed, the vertical section is located on the side of the bottom groove away from the pressing roller, and the top cover is located on top of the vertical section.
[0010] In one example, the bottom groove portion has a plurality of slots at intervals on the side near the cavitation roller that match the cavitation block.
[0011] The beneficial effects of this utility model are as follows: by setting a cleaning roller, a brush and a receiving box outside the pressing roller, the brush can clean the adhering substrate before and after the pressing roller presses the holes, so that the pressing effect is better. The cleaned soil falls into the receiving box, which can avoid waste, or it can be spread back onto the seedling tray. Attached Figure Description
[0012] Figure 1 A schematic diagram of a cleaning device for pressing rollers in flue-cured tobacco seedling cultivation;
[0013] Figure 2 Another perspective schematic diagram of the cleaning device for the pressing roller in flue-cured tobacco seedling cultivation;
[0014] Figure 3 This is a schematic diagram of the cavitation unit;
[0015] Figure 4 This is a schematic diagram of the cleaning unit;
[0016] Figure 5 This is a schematic diagram of the cleaning roller and the receiving box;
[0017] Figure 6 This is a schematic diagram of the receiving box;
[0018] Explanation of reference numerals in the attached figures:
[0019] Cavitation unit: 11 Carrying conveyor table, 12 Cavitation roller, 13 Cavitation block, 14 Cavitation frame, 15 Drive mechanism, 16 First transmission wheel;
[0020] Cleaning unit: 21 cleaning roller, 22 brush, 23 receiving box, 231 bottom groove, 232 vertical section, 233 top cover, 234 groove opening, 24 second drive wheel, 25 drive belt, 26 cleaning frame. Detailed Implementation
[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0022] Please see Figures 1 to 6 This embodiment provides a cleaning device for tobacco seedling pressing rollers, which includes a pressing unit and a cleaning unit.
[0023] The pressing unit includes a carrying conveyor platform 11, pressing rollers 12 mounted on the carrying conveyor platform 11, and multiple rows of pressing blocks 13 spaced circumferentially on the pressing rollers 12. Each row of pressing blocks 13 corresponds to a row of holes on the seedling tray. The carrying conveyor platform 11 is mainly used to carry and transport the seedling trays. The carrying conveyor platform 11 can be a conveyor line in the form of a belt or chain. In operation, the carrying conveyor platform 11 drives the seedling trays to move forward continuously. The pressing rollers 12 are mainly used to press the soil in the holes filled with substrate. When the carrying conveyor platform 11 drives the seedling trays forward, the pressing rollers 12 rotate, and the pressing blocks 13 at the bottom press the soil in the holes, facilitating the subsequent sowing process.
[0024] The cleaning unit includes a cleaning roller 21 mounted on a conveyor platform 11, a brush 22 mounted on the cleaning roller 21, and a receiving box 23 located below the cleaning roller 21. The brush 22 is positioned to contact the pressing roller 12. By configuring the cleaning roller 21, brush 22, and receiving box 23, the brush 22 can clean the adhering substrate before and after the pressing roller 12 presses the soil into the seedling trays, resulting in better pressing effect. The cleaned soil falls into the receiving box 23, preventing waste, or it can be spread back onto the seedling trays.
[0025] For ease of operation, the cavitation pressing unit also includes a cavitation pressing frame 14, which is disposed on both sides of the carrying conveyor platform 11. The cavitation pressing roller 12 is rotatably mounted on the cavitation pressing frame 14, and one end of the cavitation pressing roller 12 is connected to a drive mechanism 15, which can be a geared motor. The other end is provided with a first transmission wheel 16. The cleaning unit also includes a cleaning frame 26, which is disposed on both sides of the carrying conveyor platform 11. The cleaning roller 21 is rotatably mounted on the cleaning frame 26, and one end of the cleaning roller 21 is provided with a second transmission wheel 24. The second transmission wheel 24 is connected to the first transmission wheel 16 through a transmission belt 25, so that when the cavitation pressing roller 12 rotates, the cleaning roller 21 also rotates synchronously for cleaning. In this embodiment, the cleaning unit is installed on the front side of the cavitation pressing roller 12. In other embodiments, the cleaning unit may also be installed only on the rear side or both sides.
[0026] To prevent substrate splashing, the receiving box 23 includes a bottom groove 231, a vertical section 232, and a top cover 233. The bottom groove 231 is grooved, the vertical section 232 is located on the side of the bottom groove 231 away from the pressing roller 12, and the top cover 233 is connected to the top of the vertical section 232. The bottom groove 231 receives the cleaned substrate, while the vertical section 232 and the top cover 233 prevent the substrate from splashing outward.
[0027] To improve the cleaning effect, the bottom groove 231 is provided with a plurality of slots 234 at intervals on the side near the pressing roller 12, which match the pressing blocks 13. When the pressing roller 12 rotates, the pressing blocks 13 pass through these slots 234, and the attached substrate can be scraped off by the edges of the slots 234. Furthermore, rubber can be provided on the outer edge of the slots 234.
[0028] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A cleaning device for tobacco seedling pressing rollers, characterized in that, include: The cavitation unit includes a carrier conveyor platform (11), an cavitation roller (12) mounted on the carrier conveyor platform (11), and multiple rows of cavitation blocks (13) formed circumferentially on the cavitation roller (12). The cleaning unit includes a cleaning roller (21) mounted on a carrier conveyor (11), a brush (22) mounted on the cleaning roller (21), and a receiving box (23) mounted below the cleaning roller (21). The brush (22) is configured to contact the pressing roller (12).
2. The tobacco seedling pressing hole cleaning device according to claim 1, characterized in that, The cavitation unit also includes a cavitation frame (14), and the cavitation roller (12) is rotatably mounted on the cavitation frame (14). One end of the cavitation roller (12) is connected to the drive mechanism (15), and the other end is provided with a first transmission wheel (16). The cleaning unit also includes a cleaning frame (26), the cleaning roller (21) is rotatably mounted on the cleaning frame (26), and one end of the cleaning roller (21) is provided with a second transmission wheel (24), the second transmission wheel (24) is connected to the first transmission wheel (16) through a transmission belt (25).
3. The cleaning device for the tobacco seedling pressing roller according to claim 1, characterized in that, The cleaning unit is located on the front and / or rear side of the pressure roller (12).
4. The cleaning device for the tobacco seedling pressing roller according to claim 1, characterized in that, The receiving box (23) includes a bottom groove (231), a vertical section (232) and a top cover (233). The bottom groove (231) is in the shape of a groove. The vertical section (232) is located on the side of the bottom groove (231) away from the pressing roller (12). The top cover (233) is located on the top of the vertical section (232).
5. The cleaning device for the tobacco seedling pressing roller according to claim 4, characterized in that, The bottom groove (231) is provided with a plurality of slots (234) that match the cavitation block (13) on the side near the cavitation roller (12).