Tobacco planting under-film seedling pulling and ridging equipment

Abstract

The invention belongs to the technical field of tobacco field planting, and particularly relates to tobacco planting under-film seedling pulling and ridging equipment which comprises a movable platform arranged across a tobacco ridge and an outer cylinder arranged corresponding to tobacco seedlings on the ridge and fixedly arranged on the bottom face of the platform, and a circular-truncated-cone-shaped guide table is fixed and coaxially connected with the inner wall of the outer cylinder through a flange at the bottom end. Soil discharging openings are formed in the flange in the circumferential direction at equal intervals, two soil sampling pipes with the bottom ends inclined towards the operation advancing direction are fixedly arranged on the two sides of the platform respectively, the bottom ends of the soil sampling pipes are communicated with buckets, and the tops of the soil sampling pipes are connected and communicated with the outer cylinder; the equipment further comprises a film cutting device, the film cutting device comprises an electric push rod arranged on the platform, the output end of the electric push rod penetrates through the guide table and then is rotationally connected with an inner cylinder coaxially arranged relative to the outer cylinder, and an annular cutting blade is arranged at the bottom end of the inner cylinder. The film breaking and ridging machine is simple in structure, film breaking and ridging operation is achieved in the moving process of the whole machine through transmission cooperation of multiple mechanisms, the operation efficiency is greatly improved, and labor is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco field planting, and in particular relates to a tobacco planting seedling digging and soil-raising device under a film. Background Art

[0002] The seedlings are dug out and soiled when the seedlings grow from transplanting to the early stage of the cluster stage. The closed ground film has affected the upward growth space of the seedlings. At this time, the ground film needs to be cut, and then the seedlings are dug out and exposed from the cut. At this time, the existence of the ground film can also provide a nighttime heat preservation effect for the seedlings. In addition, the seedlings need to be soiled at the same time as the seedlings are dug out to promote the development of the root system. In the prior art, the seedling digging and soiling operation mainly relies on manual operation, which is not only inefficient but also labor-intensive. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a tobacco planting film under the seedling digging soil equipment. The present invention has a simple structure and utilizes the transmission coordination of multiple mechanisms to achieve film breaking and soiling operations during the movement of the whole machine, thereby greatly improving the working efficiency and saving labor.

[0004] To achieve the above object, the present invention provides the following technical solutions: The tobacco planting film under-film seedling digging and soiling equipment comprises a movable platform arranged across the tobacco ridge, and also comprises an outer cylinder arranged corresponding to the tobacco seedlings on the ridge and fixed on the bottom surface of the platform, the truncated cone-shaped guide platform is fixed and coaxially connected to the inner wall of the outer cylinder through the flange at the bottom, and the flange is provided with soil lowering openings at equal intervals in the circumferential direction. Two soil taking pipes with their bottom ends tilted toward the working direction are fixed on both sides of the platform respectively, and the bottom ends of the soil taking pipes are connected to a bucket, and the top ends are connected and communicated with the outer cylinder; The equipment also includes a film cutting device, which includes an electric push rod arranged on the platform. The output end of the electric push rod passes through the guide platform and is rotatably connected to an inner cylinder coaxially arranged relative to the outer cylinder. A circular cutting blade is provided at the bottom end of the inner cylinder.

[0005] Preferably, the film cutting device further comprises a middle cylinder coaxially fixed on the bottom surface of the guide platform, the inner wall of the middle cylinder is provided with a spiral groove and the top end of the outer wall of the inner cylinder is provided with a sliding block slidably matched with the spiral groove.

[0006] Preferably, the outer wall of the middle tube and the inner wall of the outer tube below the flange form a soil lowering channel; the inner wall of the outer tube and the outer wall of the guide platform above the flange form a soil entering channel.

[0007] Preferably, an auger is provided inside the soil taking pipe and the auger is drivingly connected to the output end of the motor on the platform, and the top of the soil taking pipe is connected to the soil feeding channel through a pipeline; When the platform is moving, the bottom end of the bucket cuts into the ditch ground beside the tobacco ridge.

[0008] Preferably, the output end of the electric push rod is fixedly connected to the top surface of the positioning plate, the top of the inner cylinder is rotatably matched with the annular groove provided on the bottom surface of the positioning plate through an annular convex ring, and a positioning column is fixedly disposed on the bottom surface of the positioning plate coaxially with the inner cylinder; A rubber plug is airtightly arranged between the inner cylinder and the positioning column, the top surface of the rubber plug is fixedly connected to the bottom end of a limiting rod penetrating the positioning plate, and the top end of the limiting rod is fixedly connected to the guide platform.

[0009] Preferably, the outer wall of the guide platform is radially connected to a receiving groove at the lower soil opening corresponding to the flange, and a sealing plate for covering the lower soil opening is radially slidably arranged in the space formed by the receiving groove and the lower soil opening, and a spring and a pull rope are respectively provided at one end of the sealing plate facing the receiving groove, the spring is connected to the inner wall of the receiving groove, and the pull rope is connected to the top surface of the positioning plate after passing through the guide rod erected in the receiving groove.

[0010] Preferably, a wedge is provided on the top surface of the flange between adjacent lower soil openings, and the wedge surfaces on both sides of the wedge smoothly transition to the corresponding lower soil openings. The wedge is used to guide the soil to quickly enter the lower soil opening, and on the other hand, to ensure that the soil in the soil entry space can be completely discharged through the lower soil opening without any dead corner residue.

[0011] Preferably, the inner wall of the inner cylinder below the rubber plug is integrally provided with an air-closed ring, the inner ring surface of the air-closed ring is located below the positioning column and the inner diameter of the air-closed ring is smaller than the outer diameter of the positioning column; The suction space below the rubber plug is composed of the inner wall of the inner cylinder, the outer wall of the positioning column and the air-closed ring, and is communicated with the outside world only through the ring hole of the air-closed ring.

[0012] Preferably, the annular hole of the air-closed ring is air-tightly connected to the exhaust port at the top of the suction cup, the suction cup is in the shape of a hollow truncated cone, and the air inlet at the bottom is located above the blade edge at the bottom end of the inner tube.

[0013] Preferably, the air inlet of the suction cup is covered with a filter screen, which is designed to prevent the cut ground film from entering the suction cup and causing the suction cup to be blocked.

[0014] The working process of the present invention is as follows: First, the platform is placed across the current tobacco ridge, that is, the two moving wheels of the platform are placed on both sides of the tobacco ridge, and the bucket cuts into the ridge ditch ground, so that the soil enters the bucket. Then the platform is moved and stops at each tobacco seedling for operation.

[0015] During the movement of the platform, the soil is scooped up by the bucket and enters the soil pipe under the subsequent soil pushing action, and then is sent into the soil feeding channel by the auger driven by the motor. The soil in the soil feeding channel falls along the guide platform and accumulates above the flange. At this moment, the lower soil opening of the flange is closed by the blocking plate.

[0016] When the platform moves to above the tobacco seedlings, it stops moving and the staff turns on the electric push rod. The output end of the electric push rod first extends and pushes the positioning plate to move vertically downward. Since the outer cylinder is fixedly connected to the platform, the outer cylinder, guide platform, middle cylinder and limit rod cannot move, so the positioning plate only drives the positioning column and inner cylinder to move vertically.

[0017] During the vertical movement of the inner cylinder, the slider on its outer wall is slidably matched with the spiral groove on the inner wall of the middle cylinder, so the inner cylinder moves vertically downward and rotates circumferentially. When the output end of the electric push rod reaches the end of the stroke, the blade at the bottom of the inner cylinder contacts the ground film and cuts it. At the same time, during the downward movement of the positioning plate, the limit rod and the rubber plug cannot move, so the suction space below the rubber plug composed of the inner wall of the inner cylinder, the outer wall of the positioning column and the air closed loop will increase in volume and generate negative pressure, thereby causing suction to be generated at the bottom of the suction cup, and the suction is used to suck and pull the circular ground film cut by the blade upward and separate it from the ground film base.

[0018] Similarly, the downward movement of the positioning plate will also drive the pull rope to move downward, thereby allowing the pull rope to overcome the deformation elastic force of the spring and pull the sealing plate into the storage groove of the guide platform and expose the lower soil opening. The soil above the lower soil opening falls from the lower soil opening into the lower soil channel. When this part of the soil contacts the ground film matrix, it is first piled on the outside of the inner tube, and after the inner tube is subsequently reset, it loses its obstruction and falls around the tobacco seedlings to complete the soil cultivation operation.

[0019] Then the output end of the electric push rod drives the positioning plate to reset, the inner cylinder to reset, the suction cup pushes away the adsorbed circular ground film, and at the same time the pull rope and the spring are reset and the blocking plate continues to block the lower soil opening under the action of the spring. The soil in the soil inlet channel no longer falls and waits for the next soiling operation.

[0020] Compared with the prior art, the present invention has the following advantages: the present invention has a simple structure, utilizes the transmission coordination of multiple mechanisms, realizes film breaking and soiling operations during the movement of the whole machine, greatly improves the working efficiency, and saves labor. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the equipment for digging out seedlings and cultivating soil under the film according to the specific implementation method; Figure 2 This is a schematic diagram of the internal structure of the outer cylinder described in the specific implementation method; Figure 3 This is a schematic diagram of the internal structure of the middle cylinder described in the specific implementation method; Figure 4 It is a schematic diagram of the internal structure of the soil sampling pipe described in the specific implementation method; Figure 5 This is a schematic diagram of the structure of the middle cylinder described in the specific implementation method; Figure 6It is a schematic diagram of the internal structure of the guide platform described in the specific implementation method; Figure 7 for Figure 6 A magnified schematic diagram of the structure of the middle A section; Figure 8 It is a schematic diagram of the internal structure of the inner cylinder described in the specific implementation method. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] like Figure 1-8 As shown, the equipment for digging seedlings and raising soil under film for tobacco planting includes a movable platform 1 arranged across the tobacco ridge, a push handle 12 is provided on one side of the platform 1, and also includes an outer cylinder 24 arranged corresponding to the tobacco seedlings on the ridge and fixed on the bottom surface of the platform, a truncated cone-shaped guide platform 25 is fixed and coaxially connected to the inner wall of the outer cylinder 24 through a flange 26 at the bottom end, and soil openings 27 are opened on the flange 26 at equal intervals in the circumferential direction, and wedge blocks 28 are provided on the top surface of the flange 26 between adjacent soil openings 27, and the wedge surfaces on both sides of the wedge block 28 are smoothly transitioned to the corresponding soil openings 27 respectively.

[0024] A middle cylinder 29 is coaxially fixed to the bottom surface of the guide platform 25, and a spiral groove 29 is provided on the inner wall of the middle cylinder 29; the outer wall of the middle cylinder 29 below the flange 26 and the inner wall of the outer cylinder 24 form a soil lowering channel 242; the inner wall of the outer cylinder 24 above the flange 26 and the outer wall of the guide platform 25 form a soil entering channel 241.

[0025] The two bottom ends of the soil taking pipes 2 are tilted toward the working direction and fixed on both sides of the platform 1. A screw 221 is arranged inside the soil taking pipe 2 and the screw 221 is connected to the output end of the motor 22 on the platform. The top of the soil taking pipe 2 is connected to the soil feeding channel 241 through a pipe 23. The bottom end of the soil taking pipe 2 is connected to a bucket 21. When the platform 1 is moving, the bottom end of the bucket 21 cuts into the ridge ditch ground beside the tobacco ridge. The device also includes a film cutting device, which includes an electric push rod 13 arranged on the platform 1, and the output end of the electric push rod 13 passes through the guide platform 5 and is fixedly connected to the top surface of the positioning plate 3 coaxially arranged relative to the outer cylinder 24, and the bottom surface of the positioning plate 3 is provided with an annular groove 38; An inner cylinder 31 is provided below the positioning plate 3 and is coaxially arranged relative to the middle cylinder 29, and a positioning column 39 is fixedly provided coaxially relative to the inner cylinder 31 on the bottom surface of the positioning plate 3. The top of the inner cylinder 31 is rotatably matched with the annular groove 38 through an annular convex ring 313. A slider 36 is provided at the top of the outer wall of the inner cylinder 31 and is slidably matched with the spiral groove 291 on the inner wall of the middle cylinder 29. A circular cutting blade 32 is provided at the bottom end of the inner cylinder 31.

[0026] A rubber plug 314 is airtightly provided between the inner cylinder 31 and the positioning column 39 . The top surface of the rubber plug 314 is fixedly connected to the bottom end of a limiting rod 37 that passes through the positioning plate 3 . The limiting rod 37 is located inside the annular convex ring 313 and the top end of the limiting rod 37 is fixedly connected to the bottom surface of the guide platform 25 .

[0027] The inner wall of the inner cylinder 31 below the rubber plug 314 is integrally provided with an air-closed ring 33, the inner ring surface of the air-closed ring 33 is located below the positioning column 39 and the inner diameter of the air-closed ring 33 is smaller than the outer diameter of the positioning column 39; the suction space 312 below the rubber plug 314, which is composed of the inner wall of the inner cylinder 31, the outer wall of the positioning column 39 and the air-closed ring 33, is connected to the outside world only through the annular hole of the air-closed ring 33. The annular hole of the air-closed ring 33 is airtightly connected to the exhaust port at the top of the suction cup 34, the suction cup 34 is in a hollow truncated cone shape and the air inlet at the bottom is located above the blade 32 at the bottom end of the inner cylinder, and the air inlet of the suction cup 34 is covered with a filter 35.

[0028] The outer wall of the guide platform 25 is radially connected to the lower soil opening 27 of the corresponding flange 26 and is provided with a receiving groove 251. A sealing plate 254 for covering the lower soil opening 27 is radially slidably arranged in the space formed by the receiving groove 251 and the lower soil opening 27. A spring 255 and a pull rope 253 are respectively provided at one end of the sealing plate 254 facing the receiving groove 251. The spring 255 is connected to the inner wall of the receiving groove 251, and the pull rope 253 is connected to the top surface of the positioning plate 3 after bypassing the guide rod 252 erected in the receiving groove.

[0029] The working process of the present invention is as follows: First, the platform 1 is placed across the current tobacco ridge, that is, the two moving wheels 11 of the platform are placed on both sides of the tobacco ridge, and the bucket 21 cuts into the ridge ditch ground, so that the soil enters the bucket 21. Then the platform 1 is moved and stops at each tobacco seedling for operation.

[0030] During the movement of the platform 1, the soil is scooped up by the bucket 21 and enters the soil pipe 2 under the subsequent soil pushing action, and then is sent into the soil feeding channel 241 by the auger 221 driven by the motor 22. The soil in the soil feeding channel 241 falls along the guide platform 25 and accumulates above the flange 26. At this moment, the lower soil opening 27 of the flange 26 is closed by the blocking plate 254.

[0031] When the platform 1 moves to above the tobacco seedlings, it stops moving, and the staff turns on the electric push rod 13. The output end of the electric push rod 13 first extends and pushes the positioning plate 3 to move vertically downward. Since the outer cylinder 24 is fixedly connected to the platform 1, the outer cylinder 24, the guide platform 25, the middle cylinder 29 and the limit rod 37 cannot move, so the positioning plate 3 only drives the positioning column 39 and the inner cylinder 31 to move vertically.

[0032] During the vertical movement of the inner cylinder 31, since the slider 36 on its outer wall is slidably matched with the spiral groove 291 on the inner wall of the middle cylinder 29, the inner cylinder 31 moves vertically downward and rotates circumferentially. When the output end of the electric push rod 13 reaches the end of the stroke, the blade at the bottom of the inner cylinder 31 contacts the ground film and cuts it. At the same time, during the downward movement of the positioning plate 3, the limit rod 37 and the plug 314 cannot move, so the suction space 312 below the plug 314, which is composed of the inner wall of the inner cylinder 31, the outer wall of the positioning column 39 and the air closed loop 33, will increase in volume and generate negative pressure, thereby causing suction to be generated at the bottom of the suction cup 34, and using this suction to suck and pull the circular ground film cut by the blade upward to separate it from the ground film base.

[0033] Similarly, the downward movement of the positioning plate 3 will also drive the pull rope 253 to move downward, thereby allowing the pull rope 253 to overcome the deformation elastic force of the spring 255 and pull the sealing plate 254 into the receiving groove 251 of the guide platform and expose the lower soil opening 27. The soil above the lower soil opening 27 falls from the lower soil opening into the lower soil channel 242. When this part of the soil contacts the ground film matrix, it is first piled on the outside of the inner tube 31, and after the inner tube 31 is subsequently reset, it loses its obstruction and falls around the tobacco seedlings to complete the soil cultivation operation.

[0034] Then the output end of the electric push rod 13 drives the positioning plate 3 to reset, the inner cylinder 31 to reset, the suction cup 34 pushes away the adsorbed circular ground film, and at the same time the pull rope 253 and the spring 255 are reset and the blocking plate 254 continues to block the lower soil opening 27 under the action of the spring 255. The soil in the soil inlet channel 241 does not fall and waits for the next soil cultivation operation.

Claims

1. A tobacco planting film-under-film seedling digging and soil-raising device, comprising a movable platform arranged across tobacco ridges, characterized in that: It also includes an outer cylinder arranged corresponding to the tobacco seedlings on the ridge and fixed on the bottom surface of the platform. The truncated cone-shaped guide platform is fixed and coaxially connected to the inner wall of the outer cylinder through the flange at the bottom. The flange is provided with soil lowering openings at equal intervals in the circumferential direction. Two soil taking pipes with their bottom ends tilted toward the working direction are fixed on both sides of the platform respectively, and the bottom ends of the soil taking pipes are connected to a bucket, and the top ends are connected and communicated with the outer cylinder; The equipment also includes a film cutting device, which includes an electric push rod arranged on the platform. The output end of the electric push rod passes through the guide platform and is rotatably connected to an inner cylinder coaxially arranged relative to the outer cylinder. A circular cutting blade is provided at the bottom end of the inner cylinder.

2. The tobacco planting film-under-film soil-raising equipment according to claim 1, characterized in that: The film cutting device also includes a middle cylinder coaxially fixed on the bottom surface of the guide platform, the inner wall of the middle cylinder is provided with a spiral groove, and the top end of the outer wall of the inner cylinder is provided with a sliding block slidably matched with the spiral groove.

3. The tobacco planting film-under-film soil-raising equipment according to claim 2, characterized in that: The outer wall of the middle cylinder and the inner wall of the outer cylinder below the flange form a soil lowering passage; the inner wall of the outer cylinder and the outer wall of the guide platform above the flange form a soil entering passage.

4. The tobacco planting film-under-film soil-raising equipment according to claim 3, characterized in that: The soil taking pipe is provided with an auger inside and the auger is transmission-connected to the output end of the motor on the platform, and the top of the soil taking pipe is connected to the soil feeding channel through a pipeline; When the platform is moving, the bottom end of the bucket cuts into the ditch ground beside the tobacco ridge.

5. The tobacco planting film-under-film soil-raising equipment according to claim 2, characterized in that: The output end of the electric push rod is fixedly connected to the top surface of the positioning plate, the top of the inner cylinder is rotatably matched with the annular groove provided on the bottom surface of the positioning plate through an annular convex ring, and a positioning column is fixedly arranged on the bottom surface of the positioning plate coaxially with the inner cylinder; A rubber plug is airtightly arranged between the inner cylinder and the positioning column, the top surface of the rubber plug is fixedly connected to the bottom end of a limiting rod penetrating the positioning plate, and the top end of the limiting rod is fixedly connected to the guide platform.

6. The tobacco planting film-under-film soil-raising equipment according to claim 5, characterized in that: The outer wall of the guide platform is radially connected to a receiving groove at the lower soil opening corresponding to the flange, and a sealing plate for covering the lower soil opening is radially slidably arranged in the space formed by the receiving groove and the lower soil opening. A spring and a pull rope are respectively provided at one end of the sealing plate facing the receiving groove, the spring is connected to the inner wall of the receiving groove, and the pull rope is connected to the top surface of the positioning plate after passing through a guide rod erected in the receiving groove.

7. The tobacco planting film-under-film soil-raising equipment according to claim 6, characterized in that: A wedge block is arranged on the top surface of the flange between adjacent lower soil openings, and wedge surfaces on both sides of the wedge block are smoothly transitioned to the corresponding lower soil openings respectively.

8. The tobacco planting film-under-film soil-raising equipment according to claim 5, characterized in that: The inner wall of the inner cylinder below the rubber plug is integrally provided with an air-closed ring, the inner ring surface of the air-closed ring is located below the positioning column and the inner diameter of the air-closed ring is smaller than the outer diameter of the positioning column; The suction space below the rubber plug is composed of the inner wall of the inner cylinder, the outer wall of the positioning column and the air-closed ring, and is communicated with the outside world only through the ring hole of the air-closed ring.

9. The tobacco planting film-under-film soil-raising equipment according to claim 8, characterized in that: The annular hole of the air-closed ring is airtightly connected to the exhaust port at the top of the suction cup. The suction cup is in a hollow frustum shape and the air inlet at the bottom is located above the blade edge at the bottom end of the inner cylinder.

10. The tobacco planting film-under-film soil-raising equipment according to claim 9, characterized in that: The air inlet of the suction cup is covered with a filter screen.

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