A packer-scraper mechanism for an automatic seeder

Abstract

The utility model relates to sowing machine technical field especially automatic seeding machine's tamping scraper mechanism, including conveyer belt, the top fixed mounting of conveyer belt has the portal frame, the inside of portal frame is slidably installed with U -shaped frame through the guide component, the inside rotation of U -shaped frame is installed with tamping roller, the lateral plate of U -shaped frame is equipped with the lifting sleeve, the top of lifting sleeve is connected portal frame through elevating assembly, this mechanism can carry out compaction and scraping to bottom soil respectively through tamping roller and scraper, avoid the firmness of seedling root rooting of bottom soil too loose influence, can adjust the height of tamping roller and scraper simultaneously not only, to adapt to the different height's hole tray, and when meeting hard object, tamping roller and scraper can rise, to avoid hard object and break tamping roller, scraper and conveyer belt in tamping roller and scraper bottom and damage, cause the trouble.

Description

Technical Field

[0001] This utility model relates to the field of seeder technology, and in particular to a soil-pressing and scraping mechanism for an automatic seeder. Background Technology

[0002] The plug tray seedling raising technology mainly utilizes plug trays to provide a carrier for seedling raising and sowing. Appropriate amount of bottom soil is placed in each hole of the plug tray, followed by the placement of a suitable amount of seeds, and then the holes are covered with soil. Existing plug tray seedling raising devices often have independently designed and operating sowing and seedling raising equipment, which cannot achieve continuous sowing and seedling raising.

[0003] A seedling planter with prior art publication number CN102960101A includes a frame and a conveying device. The conveying device is located on the top of the frame, and a soil filling device, a hole-making device, a needle-type tray sowing device, a soil covering device, and a watering device are sequentially arranged on the conveying device along the conveying direction. The seedling planter provided by the present invention realizes the actions of tray conveying, soil filling, hole making, sowing, tray filling and soil covering, and watering by the soil filling device, hole-making device, needle-type tray sowing device, soil covering device, and watering device sequentially arranged on the conveying device. This allows the entire seedling sowing operation to be completed on a single work line, thereby effectively improving the work efficiency of seedling sowing.

[0004] The aforementioned prior art provides a seedling sowing method that sequentially completes the actions of tray delivery, bottom soil filling, hole making, sowing, tray covering with soil, and watering, thereby effectively improving the work efficiency of seedling sowing. However, after the bottom soil is filled, the bottom soil on the tray is directly swept flat with a brush without preliminary compaction, making the bottom soil too loose and affecting the fixation of the seedling roots. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the lack of preliminary compaction of the subsoil, which results in excessively loose subsoil affecting the fixation of seedling roots. Therefore, this invention proposes a compaction and scraping mechanism for an automatic seeder.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design an automatic seeder's compaction and scraping mechanism, including a conveyor belt, a gantry frame fixedly installed on the top of the conveyor belt, a U-shaped frame slidably installed inside the gantry frame via a guide assembly, a compaction roller rotatably installed inside the U-shaped frame, a lifting sleeve covering the cross plate of the U-shaped frame, and the top of the lifting sleeve connected to the gantry frame via a lifting assembly, the lifting assembly being used to lift the sleeve and adjust the distance between the gantry frame;

[0008] The top of the U-shaped frame is provided with an elastic pressing component, which is used to push the U-shaped frame down so that the bottom of the horizontal plate of the U-shaped frame abuts against the lower inner wall of the lifting sleeve.

[0009] Furthermore, a scraper is mounted on the front end face of the U-shaped frame via an adjustment component. The adjustment component is used to adjust the height of the scraper, and the lower half of the scraper is bent and inclined away from the pressing roller.

[0010] Furthermore, the guide assembly includes two pairs of sliding grooves respectively opened on both sides of the U-shaped frame, and a limiting post is slidably installed inside the sliding groove, with the end of the limiting post near the U-shaped frame fixedly connected to the U-shaped frame;

[0011] The limiting post is fixedly connected to a limiting plate at the end away from the U-shaped frame, and the limiting plate is slidably connected to the gantry frame at the end near the U-shaped frame.

[0012] Furthermore, the lifting assembly includes a threaded hole opened on the top of the gantry frame, and a screw is threadedly connected inside the threaded hole. The lower end of the screw passes through and is rotatably connected to the horizontal plate.

[0013] The screw has a pair of limiting rings fixedly connected to its lower outer wall, and the pair of limiting rings are located on the upper and lower sides of the horizontal plate, respectively. The screw has a crank handle fixedly connected to its upper end.

[0014] Furthermore, the adjustment assembly includes a pair of L-shaped plates fixedly installed on the front end face of the gantry frame, and a scraper is installed on the end face of the pair of L-shaped plates away from the gantry frame. A pair of limiting grooves are provided on the end face of the scraper away from the L-shaped plates.

[0015] Among them, screws are threadedly connected to the end faces of the pair of L-shaped plates away from the gantry frame, the screws are slidably installed in the limiting groove, and the scraper is clamped between the screw nut and the L-shaped plate.

[0016] Furthermore, the elastic pressing component includes a pair of uprights fixedly installed on the top of the horizontal plate of the U-shaped frame. The upper ends of the pair of uprights are movably connected to the gantry frame through a pressure adjusting component. Springs are sleeved on the outer walls of the pair of uprights, and the two ends of the springs abut against the horizontal plate and the pressure adjusting component, respectively.

[0017] Furthermore, the pressure regulating assembly includes a second threaded hole opened at the top of the gantry, a sleeve is threadedly connected inside the second threaded hole, a column is inserted into the inside of the sleeve, and a spring is abutted at the lower end of the sleeve.

[0018] The present invention proposes a compaction and scraping mechanism for an automatic seeder, which has the following advantages: the mechanism can compact and level the subsoil through the compaction roller and scraper respectively, avoiding the subsoil being too loose and affecting the stability of seedling roots. At the same time, it can not only adjust the height of the compaction roller and scraper to adapt to seedling trays of different heights, but also raise the compaction roller and scraper when encountering hard objects, so as to prevent hard objects from getting stuck at the bottom of the compaction roller and scraper and damaging the compaction roller, scraper and conveyor belt, causing malfunctions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is an enlarged view of area A of this utility model;

[0021] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 4 This is an enlarged view of area B of this utility model.

[0023] In the diagram: 1. Conveyor belt; 2. Gantry frame; 3. Guide assembly; 31. Slide groove; 32. Limiting post; 33. Limiting plate; 4. U-shaped frame; 41. Horizontal plate; 5. Pressing roller; 6. Lifting sleeve; 7. Lifting assembly; 71. Threaded hole; 72. Screw; 73. Limiting ring; 74. Handle; 8. Elastic pressing assembly; 81. Column; 82. Pressure adjusting assembly; 821. Second threaded hole; 822. Sleeve; 83. Spring; 9. Adjusting assembly; 91. L-shaped plate; 92. Limiting groove; 93. Screw; 931. Nut; 10. Scraper. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figure 1-4 In one embodiment of this utility model, a compaction and scraping mechanism for an automatic seeder is disclosed, including a conveyor belt 1, a gantry frame 2 fixedly installed on the top of the conveyor belt 1, a U-shaped frame 4 slidably installed inside the gantry frame 2 via a guide assembly 3, a compaction roller 5 rotatably installed inside the U-shaped frame 4, a lifting sleeve 6 being sleeved on the cross plate 41 of the U-shaped frame 4, and the top of the lifting sleeve 6 being connected to the gantry frame 2 via a lifting assembly 7, the lifting assembly 7 being used to lift the sleeve 6 and adjust the distance between the gantry frame 2. Preferably, a horizontal shaft is fixedly installed inside the U-shaped frame 4, and the compaction roller 5 is sleeved on the outer wall of the horizontal shaft.

[0026] The top of the U-shaped frame 4 is provided with an elastic pressing component 8, which is used to push the U-shaped frame 4 down so that the bottom of the horizontal plate 41 of the U-shaped frame 4 abuts against the lower inner wall of the lifting sleeve 6.

[0027] Specifically, a scraper 10 is mounted on the front end face of the U-shaped frame via an adjustment component 9. The adjustment component 9 is used to adjust the height of the scraper 10, and the lower half of the scraper 10 is bent and inclined away from the pressing roller 5.

[0028] The seedling trays covered with soil are transported by conveyor belt 1 and pass through the pressing roller 5. The pressing roller 5 compacts the subsoil covering the seedling trays, and the compacted subsoil is leveled by scraper 10. The elastic pressing component 8 presses down the horizontal plate 41 of the U-shaped frame 4 to keep it in close contact with the lifting sleeve 6, so that the U-shaped frame 4 rises and falls with the lifting sleeve 6. For seedling trays of different heights, the lifting component 7 drives the lifting sleeve 6 to rise and fall, thereby driving the U-shaped frame 4 and the pressing roller 5 inside it to rise and fall to adapt to seedling trays of different heights. At the same time, when there are incompressible hard objects on the seedling trays, subsoil, or conveyor belt, when the hard objects pass through the pressing roller 5 and scraper 10 with the conveyor belt 1, the pressing roller 5 rotates and the lower half of the inclined scraper 10 is subjected to the upward squeezing force of the objects, thereby pushing the elastic pressing component 8 upward to resist the upward thrust and prevent the objects from getting stuck under the pressing roller 5 and causing damage to the pressing roller 5 and the conveyor belt.

[0029] For example, the guide component 3 includes two pairs of sliding grooves 31 respectively opened on both sides of the U-shaped frame 4, and a limiting post 32 is slidably installed inside the sliding groove 31. The end of the limiting post 32 near the U-shaped frame 4 is fixedly connected to the U-shaped frame 4.

[0030] Wherein, the end of the limiting post 32 away from the U-shaped frame 4 is fixedly connected to the limiting plate 33, and the end of the limiting plate 33 near the U-shaped frame 4 is slidably connected to the gantry frame 2. Preferably, the outer sides of the U-shaped frame 4 are provided with threaded holes, and the limiting post 32 is threadedly connected to the inside of the threaded holes. The outer wall of the limiting post 32 is threadedly connected to the limiting plate 33.

[0031] The U-shaped frame 4 can only be raised and lowered vertically by two pairs of limiting posts 32 and two pairs of sliding grooves 31. At the same time, the limiting plate 33, together with the U-shaped frame 4, limits the two ends of the limiting posts 32 to prevent them from disengaging from the sliding grooves 31 or tilting within the sliding grooves 31.

[0032] In some embodiments, the lifting assembly 7 includes a threaded hole 71 opened at the top of the gantry 2, and a screw 72 is threadedly connected inside the threaded hole 71. The lower end of the screw 72 passes through and is rotatably connected to the horizontal plate 41.

[0033] Among them, a pair of limiting rings 73 are fixedly connected to the lower outer wall of the screw 72, and the pair of limiting rings 73 are respectively located on the upper and lower sides of the horizontal plate 41. A crank handle 74 is fixedly connected to the upper end of the screw 72.

[0034] The screw 72 is raised and lowered by rotating the crank handle 74, and a pair of limit rings 73 are provided to drive the horizontal plate 41 and the U-shaped frame 4 to rise and fall.

[0035] It should be noted that the adjustment component 9 includes a pair of L-shaped plates 91 fixedly installed on the front end face of the U-shaped frame 4, and a scraper 10 is installed on the end face of the pair of L-shaped plates 91 away from the gantry frame 2. A pair of limiting grooves 92 are opened on the end face of the scraper 10 away from the L-shaped plates 91.

[0036] Among them, screws 93 are threadedly connected to the end faces of the L-shaped plates 91 away from the gantry frame 2. The screws 93 are slidably installed in the limiting groove 92. The scraper 10 is clamped between the nut 931 of the screw 93 and the L-shaped plate 91.

[0037] By loosening screw 93, nut 931 moves forward and contacts the scraper 10 for compression. The scraper 10 can then slide up and down to adapt to different heights of the cavities. After adjusting, screw 93 is tightened again, causing nut 931 to move backward and cooperate with L-shaped plate 91 to compress and clamp the scraper 10.

[0038] Furthermore, the elastic pressing component 8 includes a pair of columns 81 fixedly installed on the top of the horizontal plate 41 of the U-shaped frame 4. The upper ends of the pair of columns 81 are movably connected to the gantry frame 2 through the pressure adjusting component 9. The outer walls of the pair of columns 81 are fitted with springs 83, and the two ends of the springs 83 abut against the horizontal plate 41 and the pressure adjusting component 9, respectively.

[0039] The column 81 guides the spring 83 to keep it vertical, and the spring 83 applies downward pressure to press it against the lower inner wall of the lifting sleeve 6. When subjected to upward thrust, the spring 83 can be compressed to make the pressing roller 5, scraper 10, U-shaped frame 4 and column 81 rise, adapting to hard objects of different heights.

[0040] Furthermore, the pressure regulating component 82 includes a second threaded hole 821 opened on the top of the gantry 2. A sleeve 822 is threadedly connected inside the second threaded hole 821. A column 81 is inserted into the inside of the sleeve 822. The lower end of the sleeve 822 abuts against a spring 83. By rotating the sleeve 822, the sleeve 822 is raised and lowered. When the U-shaped frame 4 is raised and lowered, the compression length of the spring 83 remains unchanged by raising and lowering the sleeve 822, thus maintaining constant pressure.

[0041] Working principle: The conveyor belt 1 transports the soil-covered seedling trays through the pressing roller 5, which compacts the soil covering the seedling trays. The scraper 10 then smooths the compacted soil. Spring 83 presses down the horizontal plate 41 of the U-shaped frame 4 to keep it in close contact with the lifting sleeve 6, so that the U-shaped frame 4 rises and falls with the lifting sleeve 6. For seedling trays of different heights, the screw 72 is rotated to drive the lifting sleeve 6 to rise and fall, which in turn drives the U-shaped frame 4 and the pressing roller 5 inside it to rise and fall to adapt to seedling trays of different heights. At the same time, when there are incompressible hard objects on the seedling trays, soil, or conveyor belt, as the hard objects pass through the pressing roller 5 and scraper 10 with the conveyor belt 1, the pressing roller 5 rotates and the lower half of the inclined scraper 10 is subjected to the upward squeezing force of the objects, which pushes up the spring 83 to resist the upward thrust and prevents the objects from getting stuck under the pressing roller 5 and damaging the pressing roller 5 and the conveyor belt.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A compaction and scraping mechanism for an automatic seeder, comprising a conveyor belt (1), characterized in that: A gantry frame (2) is fixedly installed on the top of the conveyor belt (1). A U-shaped frame (4) is slidably installed inside the gantry frame (2) through a guide assembly (3). A pressing roller (5) is rotatably installed inside the U-shaped frame (4). A lifting sleeve (6) is provided on the cross plate (41) of the U-shaped frame (4). The top of the lifting sleeve (6) is connected to the gantry frame (2) through a lifting assembly (7). The lifting assembly (7) is used to lift the sleeve (6) and adjust the spacing of the gantry frame (2). The top of the U-shaped frame (4) is provided with an elastic pressing component (8), which is used to push the U-shaped frame (4) down so that the bottom of the horizontal plate (41) of the U-shaped frame (4) abuts against the lower inner wall of the lifting sleeve (6).

2. The compaction and scraping mechanism of an automatic seeder according to claim 1, characterized in that: The front end of the U-shaped frame (4) is equipped with a scraper (10) via an adjustment component (9). The adjustment component (9) is used to adjust the height of the scraper (10). The lower half of the scraper (10) is bent and tilted away from the pressing roller (5).

3. The compaction and scraping mechanism of an automatic seeder according to claim 1, characterized in that: The guide assembly (3) includes two pairs of slide grooves (31) respectively opened on both sides of the U-shaped frame (4). A limit post (32) is slidably installed inside the slide groove (31). The end of the limit post (32) near the U-shaped frame (4) is fixedly connected to the U-shaped frame (4). The limiting post (32) is fixedly connected to a limiting plate (33) at the end away from the U-shaped frame (4), and the limiting plate (33) is slidably connected to a gantry frame (2) at the end near the U-shaped frame (4).

4. The compaction and scraping mechanism of an automatic seeder according to claim 1, characterized in that: The lifting assembly (7) includes a threaded hole (71) opened on the top of the gantry (2), and a screw (72) is threaded inside the threaded hole (71). The lower end of the screw (72) passes through and is rotatably connected to the horizontal plate (41). Among them, a pair of limiting rings (73) are fixedly connected to the lower outer wall of the screw (72), and the pair of limiting rings (73) are located on the upper and lower sides of the horizontal plate (41) respectively. A crank handle (74) is fixedly connected to the upper end of the screw (72).

5. The compaction and scraping mechanism of an automatic seeder according to claim 2, characterized in that: The adjustment component (9) includes a pair of L-shaped plates (91) fixedly installed on the front end face of the gantry (2). A scraper (10) is installed on the end face of the pair of L-shaped plates (91) away from the gantry (2). A pair of limiting grooves (92) are provided on the end face of the scraper (10) away from the L-shaped plates (91). Among them, a pair of L-shaped plates (91) are threaded with screws (93) on the end face away from the gantry (2). The screws (93) are slidably installed in the limiting groove (92). The scraper (10) is clamped between the nut (931) of the screw (93) and the L-shaped plate (91).

6. The compaction and scraping mechanism of an automatic seeder according to claim 1, characterized in that: The elastic pressing component (8) includes a pair of columns (81) fixedly installed on the top of the horizontal plate (41) of the U-shaped frame (4). The upper ends of the pair of columns (81) are movably connected to the gantry frame (2) through the pressure adjustment component (82). The outer walls of the pair of columns (81) are fitted with springs (83), and the two ends of the springs (83) abut against the horizontal plate (41) and the pressure adjustment component (82) respectively.

7. The compaction and scraping mechanism of an automatic seeder according to claim 6, characterized in that: The pressure regulating assembly (82) includes a second threaded hole (821) opened on the top of the gantry (2), and a sleeve (822) is threaded inside the second threaded hole (821). A column (81) is inserted into the inside of the sleeve (822), and the lower end of the sleeve (822) abuts against a spring (83).

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