Negative pressure type small-particle seed hole tray seeding device

Abstract

The invention discloses a negative pressure type small-particle seed hole tray seeding device, and belongs to the field of agricultural planting. A negative pressure type small-particle seed hole tray seeding device comprises a seeding table and further comprises a seeding box rotationally arranged on the seeding table; the first electromagnetic plate and the second electromagnetic plate are fixedly arranged in the seeding box; the plurality of material distribution pipes are distributed between the first electromagnetic plate and the seeding table in a rectangular shape; the material pumping pipe is connected into the material distributing pipe in a sealed and sliding mode, and a first metal ring and a second metal ring are fixedly connected to the material pumping pipe; the breathable screen cloth is fixedly arranged on the lower side of the material pumping pipe; the controller is fixedly arranged on the seeding table; the collecting mechanisms are arranged on the two sides of the seeding box; quantification is carried out through the material distributing pipes, the planting efficiency and the planting effect of small-particle seeds are effectively improved, and meanwhile, seed residues on the material distributing pipes and the breathable mesh cloth are effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural planting, and in particular to a negative pressure type small-particle seed plug tray sowing device. Background Art

[0002] Plug tray seedling cultivation is a commonly used sowing and seedling cultivation method in modern agricultural production. It has the advantages of neat emergence, high survival rate, uniform growth of seedlings, and no damage to the root system during transplanting. When planting small-particle seeds, a negative pressure sowing device is generally used for sowing. It mainly uses a vacuum pump to vacuum the box so that the seeds are adsorbed in the suction holes, and the seeds are sown into the seed holes of the plug tray by flipping the seed suction tray for sowing.

[0003] The current negative pressure small particle seed plug tray sowing device uses suction holes for direct adsorption. On the one hand, the seeds are easily stuck in the suction holes. On the other hand, the suction holes are generally set small, and the amount of seed adsorption will also vary. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a negative pressure small particle seed plug tray sowing device that can overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A negative pressure type small particle seed hole tray sowing device comprises: a sowing platform, and also comprises: a sowing box, which is rotatably arranged on the sowing platform; a first electromagnetic plate and a second electromagnetic plate, both of which are fixedly arranged in the sowing box; a plurality of material distribution pipes, which are distributed in a rectangular shape between the first electromagnetic plate and the sowing platform; a material extraction pipe, which is sealingly and slidably connected in the material extraction pipe, and a first metal ring and a second metal ring are fixedly connected to the material extraction pipe; a breathable mesh cloth, which is fixedly arranged on the lower side of the material extraction pipe; a controller, which is fixedly arranged on the sowing platform; a collecting mechanism, which is arranged on both sides of the sowing box; a vacuum exhaust component, which is arranged on the sowing platform, and the vacuum exhaust component is used to extract gas in the sowing box.

[0007] Furthermore, a cylinder is symmetrically fixedly connected to the sowing table, an output end of the cylinder is fixedly connected to a support table, two ends of the sowing box are symmetrically fixedly connected to connecting shafts, the connecting shafts are rotatably set on the support tables, a first motor is fixedly connected to one of the support tables, and the output end of the first motor is fixedly connected to the connecting shaft.

[0008] Preferably, the vacuum extraction component includes a vacuum pump fixedly arranged on the sowing table, the extraction end of the vacuum pump is fixedly connected with an extraction pipe, the extraction pipe is connected with a connecting shaft away from the first motor, the connecting shaft is connected with the upper end of the sowing box, the extraction pipe is fixedly connected with an exhaust pipe, and the exhaust pipe is fixedly connected with an electromagnetic valve.

[0009] In order to facilitate the collection of excess seeds, the collecting assembly further includes a collecting box symmetrically fixed at both ends of the sowing box, a plurality of guide blocks matching the feed pipe are fixedly connected in the collecting box, and the ends of the guide blocks are symmetrically provided with inclined surfaces.

[0010] Furthermore, the sowing table is symmetrically and fixedly connected with tracks, a carrying plate is slidably arranged between two of the tracks, a plug tray body is arranged on the carrying plate, two groups of rollers matching the tracks are symmetrically and fixedly connected to the carrying plate, and a plurality of limit blocks matching the plug tray body are fixedly connected to the carrying plate.

[0011] Preferably, a limit rod and a screw rod are rotatably provided on the lower side of the seeding box, a scraper is slidably provided on the limit rod, the scraper is threadedly connected to the screw rod, a second motor is fixedly connected to one side of the seeding box, and the output end of the second motor is fixedly connected to the screw rod.

[0012] Preferably, a rubber pad is fixedly connected to the lower side of the second electromagnetic plate.

[0013] In order to facilitate adjustment to a single seeding amount, further, an electric telescopic rod is symmetrically fixedly connected to the seeding box, and the output end of the electric telescopic rod is fixedly connected to the second electromagnetic plate.

[0014] In order to facilitate the limiting of the bearing plate, further, the sowing platform is fixedly connected to a limiting plate, a rotating plate is rotatably provided on the side of the sowing platform away from the limiting plate, a third motor is fixedly connected to the sowing platform, and an output end of the third motor is fixedly connected to the rotating plate.

[0015] In order to facilitate the detection of the position of the supporting plate, a sliding cavity is further provided in the limit plate, a first contact block is slidably provided in the sliding cavity, a spring is fixedly connected between the first contact block and the bottom of the sliding cavity, and a second contact block matching the first contact block is fixedly connected in the sliding cavity.

[0016] Compared with the prior art, the present invention provides a negative pressure small particle seed plug tray sowing device, which has the following beneficial effects:

[0017] 1. The negative pressure type small-particle seed plug tray sowing device controls the first motor to rotate a specified angle through a controller, so that the open end of the distribution tube faces upward, and then the small-particle seeds are poured onto the sowing box, the seeds are flattened and fall into the distribution tube, and then the vacuum pump is controlled by the controller to work, the vacuum pump generates negative pressure in the sowing box, so as to adsorb the seeds in the distribution tube, the plug tray body is placed under the sowing box, the sowing box is driven to rotate by the first motor, so that the open end of the distribution tube faces downward, and then the vacuum pump is turned off by the controller, and the sowing box is opened at the same time to restore normal pressure, so that the seeds fall onto the plug tray body for planting, and the distribution tube is used for quantitative measurement, which effectively improves the planting efficiency of small-particle seeds.

[0018] 2. The negative pressure type small particle seed hole tray sowing device controls the second electromagnetic plate to be energized through the controller, and the second electromagnetic plate adsorbs the second metal ring, so that there is a certain gap between the distribution pipe and the breathable mesh cloth, so as to realize quantitative extraction. When the seeds in the distribution pipe need to be discharged, the vacuum pump is closed, the electromagnetic valve is opened, and some seeds fall naturally. Then, the first electromagnetic plate is energized through the controller, and the second electromagnetic plate is de-energized. At this time, the extraction pipe moves downward instantly, and under the action of inertia and impact force, the seeds remaining in the distribution pipe fall, thereby effectively preventing seeds from remaining on the distribution pipe and the breathable mesh cloth.

[0019] 3. The negative pressure small-particle seed hole tray sowing device drives the sowing box to rotate in the opposite direction through the first motor, so that the seeds in the collecting box move along the guide block to another collecting box. At this time, the seeds in the collecting box are first replenished in the distribution pipe, and after rotating 1.5 circles, the corresponding seeds are replenished in the distribution pipe for sowing again, thereby effectively improving the utilization rate of the seeds and effectively improving the seed sowing efficiency.

[0020] The parts not involved in the device are the same as the existing technology or can be implemented by the existing technology. The present invention uses the distribution pipe to perform quantitative measurement, which effectively improves the planting efficiency and planting effect of small-particle seeds, and effectively prevents seeds from remaining on the distribution pipe and the breathable mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a negative pressure small-particle seed plug tray sowing device proposed by the present invention;

[0022] Figure 2 A negative pressure small particle seed plug tray sowing device proposed by the present invention Figure 1 The enlarged schematic diagram of point A in the middle;

[0023] Figure 3 A cross-sectional view of a negative pressure small-particle seed tray sowing device proposed by the present invention Figure 1 ;

[0024] Figure 4 A negative pressure small particle seed plug tray sowing device proposed by the present invention Figure 3 The enlarged schematic diagram of point B in the middle;

[0025] Figure 5 A cross-sectional view of a negative pressure small-particle seed tray sowing device proposed by the present invention Figure 2 ;

[0026] Figure 6 A negative pressure small particle seed plug tray sowing device proposed by the present invention Figure 5 Enlarged image of center C.

[0027] In the figure: 1. sowing table; 101. vacuum pump; 102. exhaust pipe; 103. exhaust pipe; 104. solenoid valve; 105. controller; 106. cylinder; 107. support table; 108. first motor; 109. track; 2. sowing box; 201. material distribution pipe; 202. first electromagnetic plate; 203. second electromagnetic plate; 204. rubber pad; 205. electric telescopic rod; 206. collection box; 207. guide block; 208. inclined surface; 209 , connecting shaft; 3, extraction tube; 301, breathable mesh; 302, first metal ring; 303, second metal ring; 304, scraper; 305, second motor; 306, screw; 307, limit rod; 4, carrier plate; 401, roller; 402, limit block; 403, hole plate body; 404, rotating plate; 405, third motor; 406, limit plate; 407, sliding cavity; 408, first contact block; 409, second contact block; 410, spring. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example 1: Reference Figure 1-Figure 6 A negative pressure type small particle seed hole tray sowing device comprises: a sowing platform 1, and also comprises: a sowing box 2, which is rotatably arranged on the sowing platform 1; a first electromagnetic plate 202 and a second electromagnetic plate 203, both of which are fixedly arranged in the sowing box 2; a plurality of material distribution pipes 201, which are rectangularly distributed between the first electromagnetic plate 202 and the sowing platform 1; a material extraction pipe 3, which is sealed and slidably connected in the material extraction pipe 201, and a first metal ring 302 and a second metal ring 303 are fixedly connected to the material extraction pipe 3; a breathable mesh 301, which is fixedly arranged on the lower side of the material extraction pipe 3; a controller 105, which is fixedly arranged on the sowing platform 1; a collecting mechanism, which is arranged on both sides of the sowing box 2; a vacuum exhaust component, which is arranged on the sowing platform 1, and the vacuum exhaust component is used to extract the gas in the sowing box 2.

[0030] The sowing table 1 is symmetrically fixedly connected with a cylinder 106, and the output end of the cylinder 106 is fixedly connected with a support table 107. The two ends of the sowing box 2 are symmetrically fixedly connected with connecting shafts 209, and the connecting shafts 209 are rotatably set on the support tables 107. A first motor 108 is fixedly connected to one of the support tables 107, and the output end of the first motor 108 is fixedly connected to the connecting shaft 209.

[0031] The vacuum extraction component includes a vacuum pump 101 fixedly arranged on the sowing table 1, the extraction end of the vacuum pump 101 is fixedly connected with an extraction pipe 102, the extraction pipe 102 is connected with a connecting shaft 209 away from the first motor 108, the connecting shaft 209 is connected with the upper end of the sowing box 2, the extraction pipe 102 is fixedly connected with an exhaust pipe 103, and the exhaust pipe 103 is fixedly connected with an electromagnetic valve 104.

[0032] When planting small-particle seeds in the hole tray body 403, the controller 105 controls the first motor 108 to rotate a specified angle so that the open end of the distribution tube 201 faces upward, and then the small-particle seeds are poured onto the seeding box 2, and the seeds are flattened so that they fall into the distribution tube 201. Then, the controller 105 controls the vacuum pump 101 to work, and the vacuum pump 101 generates negative pressure in the seeding box 2, thereby adsorbing the seeds in the distribution tube 201, and the hole tray body 403 is placed under the seeding box 2. The seeding box 2 is driven to rotate by the first motor 108 so that the open end of the distribution tube 201 faces downward, and then the vacuum pump 101 is closed by the controller 105, and the solenoid valve 104 is opened at the same time to restore the normal pressure in the seeding box 2, so that the seeds fall onto the hole tray body 403 for planting. The distribution tube 201 is used for quantitative determination, which effectively improves the planting efficiency of small-particle seeds.

[0033] Before adding seeds into the distribution pipe 201, the second electromagnetic plate 203 is energized through the controller 105, and the second electromagnetic plate 203 adsorbs the second metal ring 303, so that there is a certain gap between the distribution pipe 201 and the breathable mesh 301 to achieve quantitative extraction. When the seeds in the distribution pipe 201 need to be discharged, the vacuum pump 101 is closed, the electromagnetic valve 104 is opened, and some seeds fall naturally. Then, the first electromagnetic plate 202 is energized through the controller 105, and then the second electromagnetic plate 203 is de-energized. At this time, the extraction pipe 3 moves downward instantly, and under the action of inertia and impact force, the seeds remaining in the distribution pipe 201 fall, thereby effectively preventing seeds from remaining on the distribution pipe 201 and the breathable mesh 301.

[0034] Example 2: Reference Figure 1-Figure 6A negative pressure small particle seed hole tray sowing device is basically the same as Example 1. Further, the collecting component includes a collecting box 206 symmetrically fixed at both ends of the sowing box 2, and a plurality of guide blocks 207 matching the feeding pipe 201 are fixedly connected in the collecting box 206, and the ends of the guide blocks 207 are symmetrically provided with inclined surfaces 208.

[0035] When the first motor 108 drives the seeding box 2 to reverse, the seeds remaining on the side of the seeding box 2 close to the material distribution pipe 201 slide to one side and enter the collecting box 206, thereby effectively preventing the seeds from falling and reusing the seeds.

[0036] When the sowing box 2 is reversed upward, the first motor 108 drives the sowing box 2 to rotate in the opposite direction, so that the seeds in the collecting box 206 move along the guide block 207 to another collecting box 206. At this time, the seeds in the collecting box 206 first replenish the distribution pipe 201, and after rotating 1.5 circles, the corresponding seeds are replenished into the distribution pipe 201 for sowing again, thereby effectively improving the utilization rate of the seeds and effectively improving the seed sowing efficiency.

[0037] Example 3: Reference Figure 1-Figure 6 A negative pressure small particle seed plug tray sowing device is basically the same as Example 1, and further, a track 109 is symmetrically fixedly connected to the sowing platform 1, a carrying plate 4 is slidably arranged between the two tracks 109, a plug tray body 403 is arranged on the carrying plate 4, two groups of rollers 401 matching the track 109 are symmetrically fixedly connected to the carrying plate 4, and a plurality of limit blocks 402 matching the plug tray body 403 are fixedly connected to the carrying plate 4.

[0038] A limit rod 307 and a screw rod 306 are rotatably arranged on the lower side of the sowing box 2, a scraper 304 is slidably arranged on the limit rod 307, the scraper 304 is threadedly connected to the screw rod 306, a second motor 305 is fixedly connected to one side of the sowing box 2, and the output end of the second motor 305 is fixedly connected to the screw rod 306.

[0039] A rubber pad 204 is fixedly connected to the lower side of the second electromagnetic plate 203 .

[0040] The sowing box 2 is symmetrically and fixedly connected with an electric telescopic rod 205 , and the output end of the electric telescopic rod 205 is fixedly connected to the second electromagnetic plate 203 .

[0041] A limit plate 406 is fixedly connected to the sowing table 1 , a rotating plate 404 is rotatably provided on one side of the sowing table 1 away from the limit plate 406 , a third motor 405 is fixedly connected to the sowing table 1 , and an output end of the third motor 405 is fixedly connected to the rotating plate 404 .

[0042] A sliding cavity 407 is provided in the limiting plate 406 , a first contact block 408 is slidably provided in the sliding cavity 407 , a spring 410 is fixedly connected between the first contact block 408 and the bottom of the sliding cavity 407 , and a second contact block 409 matching the first contact block 408 is fixedly connected in the sliding cavity 407 .

[0043] The hole tray body 403 is placed on the supporting plate 4, and is limited by a plurality of limit blocks 402, and the supporting plate 4 is pushed toward the lower side of the seeding box 2. When the supporting plate 4 squeezes the first contact block 408 and contacts the second contact block 409, the controller 105 obtains that the circuit where the first contact block 408 and the second contact block 409 are located is energized. At this time, the controller 105 controls the third motor 405 to drive the rotating plate 404 to rotate to limit the supporting plate 4, thereby effectively positioning the hole tray body 403 to prevent the seeds from failing to accurately enter the grooves of the hole tray body 403.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A negative pressure small particle seed tray sowing device, comprising: The sowing station (1) is characterized by further comprising: A sowing box (2) rotatably disposed on the sowing platform (1); The first electromagnetic plate (202) and the second electromagnetic plate (203) are both fixedly arranged in the seeding box (2); A plurality of material distribution pipes (201) are distributed in a rectangular shape between the first electromagnetic plate (202) and the sowing table (1); A material extraction pipe (3) is sealingly and slidably connected in the material distribution pipe (201), and a first metal ring (302) and a second metal ring (303) are fixedly connected to the material extraction pipe (3); A breathable mesh cloth (301) is fixedly arranged on the lower side of the material extraction pipe (3); A controller (105) fixedly arranged on the sowing platform (1); A collecting mechanism is arranged on both sides of the seeding box (2); A vacuum extraction component is arranged on the sowing table (1), and is used to extract gas from the sowing box (2); The sowing platform (1) is symmetrically fixedly connected with a cylinder (106), the output end of the cylinder (106) is fixedly connected with a support platform (107), the two ends of the sowing box (2) are symmetrically fixedly connected with connecting shafts (209), the connecting shafts (209) are rotatably arranged on the support platforms (107), one of the supporting platforms (107) is fixedly connected with a first motor (108), and the output end of the first motor (108) is fixedly connected to the connecting shaft (209); The vacuum exhaust assembly comprises a vacuum pump (101) fixedly arranged on the sowing platform (1); an exhaust pipe (102) is fixedly connected to an exhaust end of the vacuum pump (101); the exhaust pipe (102) is connected to a connecting shaft (209) away from the first motor (108); the connecting shaft (209) is connected to the upper end of the sowing box (2); an exhaust pipe (103) is fixedly connected to the exhaust pipe (102); and a solenoid valve (104) is fixedly connected inside the exhaust pipe (103); The second electromagnetic plate (203) adsorbs the second metal ring (303) so that a certain gap exists between the distribution tube (201) and the breathable mesh (301) to achieve quantitative extraction. When it is necessary to discharge the seeds in the distribution tube (201), the vacuum pump (101) is closed and the electromagnetic valve (104) is opened, so that some seeds fall naturally. Then, the controller (105) controls the first electromagnetic plate (202) to be powered on and then controls the second electromagnetic plate (203) to be powered off. The extraction tube (3) moves downward instantly and the seeds remaining in the distribution tube (201) fall under the action of inertia and impact force.

2. A negative pressure small particle seed tray sowing device according to claim 1, characterized in that: The collecting assembly comprises a collecting box (206) symmetrically fixed at two ends of the sowing box (2), a plurality of guide blocks (207) matching the material distribution pipe (201) are fixedly connected inside the collecting box (206), and inclined surfaces (208) are symmetrically arranged at the ends of the guide blocks (207).

3. A negative pressure small particle seed plug tray sowing device according to claim 1, characterized in that: The sowing platform (1) is symmetrically and fixedly connected with rails (109), a carrying plate (4) is slidably arranged between the two rails (109), a plug tray body (403) is arranged on the carrying plate (4), two groups of rollers (401) matching the rails (109) are symmetrically and fixedly connected to the carrying plate (4), and a plurality of limit blocks (402) matching the plug tray body (403) are fixedly connected to the carrying plate (4).

4. A negative pressure small particle seed plug tray sowing device according to claim 1, characterized in that: A limit rod (307) and a screw rod (306) are rotatably arranged on the lower side of the sowing box (2); a scraper (304) is slidably arranged on the limit rod (307); the scraper (304) is threadedly connected to the screw rod (306); a second motor (305) is fixedly connected to one side of the sowing box (2); and an output end of the second motor (305) is fixedly connected to the screw rod (306).

5. The negative pressure small particle seed plug tray sowing device according to claim 1, characterized in that: A rubber pad (204) is fixedly connected to the lower side of the second electromagnetic plate (203).

6. A negative pressure small particle seed plug tray sowing device according to claim 1, characterized in that: The seeding box (2) is symmetrically and fixedly connected with an electric telescopic rod (205), and the output end of the electric telescopic rod (205) is fixedly connected to the second electromagnetic plate (203).

7. A negative pressure small particle seed tray sowing device according to claim 3, characterized in that: A limit plate (406) is fixedly connected to the sowing platform (1), a rotating plate (404) is rotatably provided on a side of the sowing platform (1) away from the limit plate (406), a third motor (405) is fixedly connected to the sowing platform (1), and an output end of the third motor (405) is fixedly connected to the rotating plate (404).

8. The negative pressure small particle seed plug tray sowing device according to claim 7, characterized in that: A sliding cavity (407) is provided in the limit plate (406), a first contact block (408) is slidably provided in the sliding cavity (407), a spring (410) is fixedly connected between the first contact block (408) and the bottom of the sliding cavity (407), and a second contact block (409) matching the first contact block (408) is fixedly connected in the sliding cavity (407).

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