A device for synchronized hole punching and seeding and a method of operation thereof

Abstract

This invention discloses a device for synchronous punching and sowing and its working method. The device includes a mounting frame for connecting to a mobile sowing platform. A mounting plate is located at the front of the mounting frame, and a contoured wheel is located at the bottom of the mounting plate. A motor is mounted on the mounting plate, and a cam is located at the output end of the motor. A punching mechanism and a synchronous sowing mechanism are mounted on the mounting plate. The punching mechanism includes a swing arm shaft mounted on the mounting plate, with a rotatable punching swing arm mounted on the swing arm shaft. One end of the punching swing arm has a punch, and the other end has a roller for engaging with the cam. A tension spring is mounted on the mounting plate. The synchronous sowing mechanism includes a synchronous connecting rod rotatably mounted on the cam, and the synchronous connecting rod is rotatably connected to a seed box, which is rotatably mounted on the mounting plate. This invention has the advantages of stable sowing operation, high efficiency, and high precision.

Description

Technical Field

[0001] This invention belongs to the field of agricultural seeding machinery technology, specifically relating to a device for simultaneous hole punching and seeding and its working method. Background Technology

[0002] Rapeseed is one of my country's major oilseed crops. In planting areas, spring droughts and low temperatures, coupled with large diurnal temperature variations, easily lead to water shortages and unstable yields in spring rapeseed production. Furthermore, in winter rapeseed producing areas, the sowing period is often delayed due to the conflict between rapeseed and rice crop rotation. Covering the soil with plastic film can improve soil temperature and humidity, reduce weed growth, promote rapeseed growth, and improve water and fertilizer utilization efficiency, thereby increasing rapeseed yield. Currently, there are two main types of film-laying sowing: one is sowing first and then laying the film, which requires manually punching holes after seed germination to expose the seedlings, resulting in high labor intensity and time-consuming work; the other is laying the film first and then punching holes in it for sowing. Currently, the commonly used hole-punching sowing device is the roller-type duckbill hole sowing device. This device simultaneously punches holes with the duckbill, allowing the seeds to fall into the film holes, achieving synchronous sowing. It is mainly suitable for peanuts, corn, cotton, and other medium to large-diameter seeds.

[0003] The shortcomings of existing hole-punching sowing technology are that soil blockage of the seed stalks affects normal sowing; and when using a seed metering device, there are problems with insufficient accuracy in seed landing point and sowing quantity. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a device for simultaneous hole punching and seeding, which has the advantages of stable seeding operation, high efficiency, and high precision.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a device for synchronous punching and sowing, comprising an installation frame for connecting a mobile sowing platform, an installation plate at the front of the installation frame, a contoured wheel at the bottom of the installation plate, a motor on the installation plate, a cam at the output end of the motor, a punching mechanism and a synchronous sowing mechanism on the installation plate, the punching mechanism comprising a swing arm shaft on the installation plate, a rotatable punching swing arm on the swing arm shaft, a punch at one end of the punching swing arm, and a roller for cooperating with the cam at the other end of the punching swing arm, a tension spring on the installation plate for connecting with the punching swing arm, and a synchronous sowing mechanism comprising a synchronous connecting rod rotatably mounted on the cam, a seed box rotatably connected to the synchronous connecting rod, the seed box being rotatably mounted on the installation plate, and a seed inlet and a seed outlet on the top of the seed box.

[0006] In the above scheme, the device is positioned by connecting the mounting frame to the mobile sowing platform. The mobile sowing platform drives the device to move and sow seeds. The mounting plate is used to install and position the cam, punching mechanism, and synchronous sowing mechanism. The contoured ground wheel is used to support the device, keeping the device at a constant distance from the bottom surface to facilitate punching and sowing. The motor is used to drive the cam to rotate, providing power to the punching mechanism and synchronous sowing mechanism. The punching swing arm is rotatably mounted on the swing arm shaft. One end of the punch is used for punching holes, and the roller at the other end is in contact with the outer ring of the cam under the action of the tension spring. Thus, the periodic punching action of the punch is realized by the rotation of the cam. One end of the synchronous connecting rod rotates periodically with the cam, and the other end is used to drive the seed box to swing back and forth. During each swing, the seeds first enter the seed box from the seed inlet and then exit from the seed outlet into the hole punched by the punch.

[0007] Furthermore, a seed channel is provided in the middle of the seed box, the seed channel including a seed inlet channel and a seed outlet channel, the seed inlet channel and the seed outlet channel are not arranged in a collinear manner.

[0008] Seeds are temporarily stored through the seed inlet channel. When the seed outlet is facing downwards, the seeds are dropped through the seed outlet channel, effectively controlling the stability of the number of seeds discharged. The seed inlet channel and the seed outlet channel are set in a zigzag shape with a certain angle, and the structure is simple.

[0009] Furthermore, the angle between the seed inlet channel and the seed outlet channel is 70°-110°, and the cross-sectional area at the inlet of the seed inlet channel is larger than the cross-sectional area at the outlet.

[0010] The angle between the seed inlet channel and the seed outlet channel facilitates seed inlet and outlet. The cross-sectional area at the inlet of the seed inlet channel is larger to temporarily store seeds and facilitate seed discharge, while the cross-sectional area at the outlet is smaller to control the total amount of seeds discharged from the seed outlet channel each time.

[0011] Furthermore, a rotating shaft is provided on the mounting plate, and the seed box is rotatably mounted on the rotating shaft.

[0012] By setting a rotating shaft to rotate and connect with the seed box, it is convenient for the synchronous connecting rod to drive the seed box to swing.

[0013] Furthermore, the seed box is connected to a seed delivery hose, and the seed delivery hose is connected to a seed metering device.

[0014] The seed metering device continuously delivers seeds into the seed box through a seed delivery hose, making it easy to use and allowing for continuous operation.

[0015] Furthermore, several sets of height adjustment mechanisms are provided between the mounting frame and the mounting plate. The height adjustment mechanism includes a contouring connecting rod and double-ended bolts provided on the mounting frame and the mounting plate. The two ends of the contouring connecting rod are rotatably connected to the double-ended bolts.

[0016] By setting up a height adjustment mechanism in conjunction with contour-following ground wheels, the device is kept in close contact with the ground while connected to the moving sowing platform, ensuring that the punching posture of the puncher and the seed drop height of the seed box are consistent each time, thus improving the punching and sowing effect. Contour-following connecting rods are connected between the two ends of the double-headed bolts on the mounting frame and the mounting plate to keep the rear of the device in a vertical position.

[0017] Furthermore, the mounting plate body includes a mounting plate one and a mounting plate two arranged opposite to each other, and a U-shaped connecting plate is provided between the mounting plate one and the mounting plate two.

[0018] Mounting plates one and two are used to support and position the contour wheel, drilling mechanism, and synchronous sowing mechanism, while a U-shaped connecting plate ensures the structural stability of the mounting plate body.

[0019] A method for operating a synchronous perforation and sowing device as described above includes the following steps: During the forward movement of the sowing platform, a stepper motor drives a cam to rotate, and a roller, under the action of a tension spring and the cam, drives a perforation swing arm to swing periodically, so that the perforator forms film holes of stable size and spacing on the mulch film; at the same time, the synchronous connecting rod, driven by the cam, drives the seed box to swing periodically, cooperating with the perforator to store and drop seeds.

[0020] In the above scheme, the device is moved by a mobile sowing platform, and a stepper motor provides power to drive the cam to rotate. The roller rotates with the cam and drives the swing arm to swing, so that the punch makes holes in the plastic film. After the holes are made, the synchronous connecting rod drives the seed box to swing, so that the seeds fall into the holes and the sowing is completed. Subsequently, when the punch is in a high position, the seed box swings to the seed storage position to receive the seeds and wait for the next sowing.

[0021] Furthermore, during the seed storage process, both the seed inlet and the seed outlet face upwards, and the seeds fall from the seed inlet into the connection between the seed inlet and the seed outlet.

[0022] During the seed storage process, the seed inlet and outlet face upwards, which facilitates seed intake. At the same time, the seeds fall into the connection between the seed inlet and outlet and will not be discharged, which facilitates the subsequent seed dispensing process.

[0023] Furthermore, the cam rotation speed is designed using the following formula:

[0024] ;

[0025] Where: vm—machine forward speed, mm / s; w—cam rotation speed, rad / s; s—plant spacing, mm.

[0026] The formula allows for adjustment of the cam rotation speed based on the plant spacing and forward speed, resulting in good hole-punching and sowing effects and ease of use.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. The cam is driven by a motor to rotate, which synchronously drives the punching mechanism and the seeding mechanism. This causes the punch to oscillate periodically to perform the punching operation, and the seed box to oscillate periodically to release seeds into the corresponding film holes after punching. The structure is simple and the operation is stable. It overcomes the clogging problem of the duckbill seeding structure and improves the working efficiency and stability.

[0029] 2. By using contour-following ground wheels, the punching mechanism and synchronous sowing mechanism maintain a constant distance from the ground. This works in conjunction with the seed box for sowing. By aligning the punching cone with the seed drop opening of the seed box, the accuracy of seed drop point and quantity is improved, ensuring consistent punching and sowing conditions each time and guaranteeing the stability of punching and sowing operations. Combined with the contour-following connecting rod, the device can be used on uneven ground structures, improving sowing accuracy.

[0030] 3. When the punching cone emerges from the soil, its absolute velocity (horizontal component) is opposite to the direction of the moving seeding platform, effectively avoiding the tearing of the film when the punching cone emerges from the soil, thus ensuring the effectiveness of punching and seeding.

[0031] 4. The cam simultaneously drives the perforating cone and the seed box to achieve synchronization between the membrane holes and the rapeseed seeds. The power source is singular and easy to manufacture. Attached Figure Description

[0032] Figure 1 This is a three-dimensional representation of the synchronous punching and seeding device in Embodiment 1 of the present invention. Figure 1 ;

[0033] Figure 2 This is a three-dimensional representation of the synchronous punching and seeding device in Embodiment 1 of the present invention. Figure 2 ;

[0034] Figure 3 This is a top view of the device for simultaneous hole punching and seeding in Embodiment 1 of the present invention;

[0035] Figure 4 This is a bottom view of the device for synchronous hole punching and seeding in Embodiment 1 of the present invention;

[0036] Figure 5 This is a schematic diagram of the mounting frame structure in Embodiment 1 of the present invention;

[0037] Figure 6This is a front view of the cam in Embodiment 1 of the present invention;

[0038] Figure 7 This is a front view of the mounting plate in Embodiment 1 of the present invention;

[0039] Figure 8 This is a diagram showing the installation structure of the seed metering device in Embodiment 1 of the present invention;

[0040] Figure 9 This is a front view of the perforated rocker arm in Embodiment 1 of the present invention;

[0041] Figure 10 This is a perspective view of the punched awl in Embodiment 1 of the present invention;

[0042] Figure 11 This is a front view of the seed box in Embodiment 1 of the present invention;

[0043] Figure 12 This is a cross-sectional view of the seed box in Embodiment 1 of the present invention;

[0044] In the diagram: 101. Mounting frame; 102. Double-ended bolt; 103. U-shaped connecting plate one; 104. Contouring connecting rod; 201. Mounting plate one; 202. U-shaped connecting plate two; 203. Mounting plate two; 204. Motor bracket; 205. Stepper motor; 206. T-shaped plate; 207. Contouring ground wheel; 208. Wheel axle; 301. Coupling; 302. Cam; 303. Camshaft; 304. Roller; 305. Rocker arm shaft; 306. Perforated rocker arm; 307. L-shaped connecting bracket; 308. Perforated tapered nail; 309. Diamond bearing seat; 310. Tension spring; 401. Synchronous shaft; 402. Synchronous connecting rod; 403. Seed box rotating shaft; 404. Seed box; 405. Seed box fixing shaft; 101a. Frame connection hole; 101b, connecting plate mounting hole; 302a, camshaft hole; 302b, synchronous shaft hole; 201a, double-ended bolt hole; 201b, coupling hole; 201c, motor bracket hole; 201d, bearing housing mounting hole; 201e, fixed shaft mounting hole; 201f, two holes in U-shaped connecting plate; 201g, tension spring mounting hole; 201h, T-plate mounting hole; 306a, roller mounting hole; 306b, tension spring mounting hole; 306c, bearing housing mounting hole; 306d, connecting frame mounting hole; 308a, tapered nail mounting hole; 405a, box rotating shaft hole; 405b, box fixed shaft hole; 405c, seed inlet channel; 405d, seed outlet channel; 5. seed metering device; 6. seed conveying hose. Detailed Implementation

[0045] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the terms front, back, left, right, etc., indicating orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0046] Example 1

[0047] like Figure 1-12 As shown, a device for synchronous punching and sowing includes a mounting frame 101 for connecting a mobile sowing platform. A mounting plate is provided at the front of the mounting frame 101, and a contoured wheel 207 is provided at the bottom of the mounting plate. A motor is mounted on the mounting plate, and a cam 302 is provided at the output end of the motor. A punching mechanism and a synchronous sowing mechanism are provided on the mounting plate. The punching mechanism includes a swing arm shaft 305 mounted on the mounting plate, and a rotatable punching swing arm 30 is mounted on the swing arm shaft 305. 6. One end of the punching lever 306 is provided with a puncher, and the other end of the punching lever 306 is provided with a roller 304 for cooperating with the cam 302. The mounting plate is provided with a tension spring 310 for connecting with the punching lever 306. The synchronous sowing mechanism includes a synchronous connecting rod 402 rotatably mounted on the cam 302. The synchronous connecting rod 402 is rotatably connected to a seed box 404. The seed box 404 is rotatably mounted on the mounting plate. The seed box 404 has a seed inlet and a seed outlet.

[0048] In the above scheme, the device is positioned by connecting the mounting frame 101 to the mobile sowing platform. The mobile sowing platform drives the device to move and sow seeds. The mounting plate is used to install and position the cam 302, the punching mechanism, and the synchronous sowing mechanism. The contour wheel 207 is used to support the device, keeping the device at a constant distance from the bottom surface, which facilitates punching and sowing. The motor is used to drive the cam 302 to rotate, providing power to the punching mechanism and the synchronous sowing mechanism. The punching swing rod 306 is rotatably mounted on the swing rod shaft 305. The punch at one end is used for punching holes, and the roller 304 at the other end is in contact with the outer ring of the cam 302 under the action of the tension spring 310, so that the periodic punching action of the punch is realized under the rotation of the cam 302. One end of the synchronous connecting rod 402 rotates periodically with the cam 302, and the other end is used to drive the seed box 404 to swing back and forth. During each swing, the seeds first enter the seed box 404 from the seed inlet and then exit from the seed outlet into the hole punched by the punch.

[0049] The punch includes a punching awl 308. During the non-film-breaking stage of the punching awl 308, the seed box 404 receives and stores the rapeseed seeds introduced by the mobile sowing platform. During the film-breaking stage of the punching awl 308, the rapeseed seeds roll and fall into the film holes on the constrained seed channel under the drive of the seed box 404, realizing the synchronization of the film holes and the seeds.

[0050] The cam 302 has a camshaft hole 302a for connecting the camshaft 303 and a synchronous shaft hole 302b for connecting the synchronous connecting rod 402. The mounting plate has a double-headed bolt hole 201a, a coupling hole 201b, a motor bracket hole 201c, a bearing housing mounting hole 201d, a fixed shaft mounting hole 201e, two holes 201f for the U-shaped connecting plate, a tension spring mounting hole 201g, and a T-shaped plate mounting hole 201h. The seed box 404 has a box rotation shaft hole 405a and a box fixing shaft hole 405b.

[0051] Furthermore, a seed channel is provided in the middle of the seed box 404. The seed channel includes a seed inlet channel and a seed outlet channel, which are not arranged on the same line.

[0052] Seeds are temporarily stored through the seed inlet channel. When the seed outlet is facing downwards, the seeds are dropped through the seed outlet channel, effectively controlling the stability of the number of seeds discharged. The seed inlet channel and the seed outlet channel are set in a zigzag shape with a certain angle, and the structure is simple.

[0053] Furthermore, the angle between the seed inlet channel and the seed outlet channel is 70°-110°, and the cross-sectional area at the inlet of the seed inlet channel is larger than the cross-sectional area at the outlet.

[0054] The angle between the seed inlet channel and the seed outlet channel facilitates seed inlet and outlet. The cross-sectional area at the inlet of the seed inlet channel is larger to temporarily store seeds and facilitate seed discharge, while the cross-sectional area at the outlet is smaller to control the total amount of seeds discharged from the seed outlet channel each time.

[0055] The exit of the seed inlet channel is equipped with an arc-shaped constriction structure.

[0056] Furthermore, a rotating shaft is provided on the mounting plate, and the seed box 404 is rotatably mounted on the rotating shaft.

[0057] By setting a rotating shaft to rotate and connect with the seed box 404, it is convenient for the synchronous connecting rod 402 to drive the seed box 404 to swing.

[0058] Furthermore, the seed box 404 is connected to a seed delivery hose, and the seed delivery hose is connected to a seed metering device.

[0059] The seed metering device continuously delivers seeds to the seed box 404 through the seed delivery hose, making it easy to use and allowing for continuous operation.

[0060] Furthermore, a number of height adjustment mechanisms are provided between the mounting frame 101 and the mounting plate. The height adjustment mechanism includes a contouring connecting rod 104 and a double-ended bolt 102 provided on the mounting frame 101 and the mounting plate. The two ends of the contouring connecting rod 104 are rotatably connected to the double-ended bolt 102.

[0061] By setting a height adjustment mechanism in conjunction with the contour wheel 207, the device is kept in close contact with the ground while connected to the moving sowing platform, ensuring that the punching posture of the puncher and the seed drop height of the seed box 404 are consistent each time, thus improving the punching and sowing effect. The contour connecting rod 104 is connected between the two ends of the double-headed bolt 102 on the mounting frame 101 and the mounting plate to keep the rear of the device in a vertical position.

[0062] Furthermore, the mounting plate body includes a first mounting plate 201 and a second mounting plate 203 arranged opposite to each other, and a U-shaped connecting plate is provided between the first mounting plate 201 and the second mounting plate 203.

[0063] Mounting plates 201 and 203 are used to support and position the contour wheel 207, the drilling mechanism, and the synchronous sowing mechanism, while a U-shaped connecting plate ensures the structural stability of the mounting plate body.

[0064] A method for operating a synchronous perforation and sowing device as described above includes the following steps: During the forward movement of the sowing platform, the stepper motor 205 drives the cam 302 to rotate, and the roller 304, under the action of the tension spring 310 and the cam 302, drives the perforation swing arm 306 to swing periodically, so that the perforator forms film holes of stable size and spacing on the mulch film; at the same time, the synchronous connecting rod 402, driven by the cam 302, drives the seed box 404 to swing periodically, cooperating with the perforator to store and drop seeds.

[0065] In the above scheme, the device is moved by a mobile sowing platform, and the stepper motor 205 provides power to drive the cam 302 to rotate. The roller 304 rotates with the cam 302 and drives the swing arm to swing, so that the punch makes holes in the film. After the holes are made, the synchronous connecting rod 402 drives the seed box 404 to swing, so that the seeds fall into the punched holes and the sowing is completed. Subsequently, when the punch is in a high position, the seed box 404 swings to the seed storage position to receive the seeds and wait for the next sowing.

[0066] Furthermore, during the seed storage process, both the seed inlet and the seed outlet of seed box 404 face upwards, and the seeds fall from the seed inlet into the connection between the seed inlet and the seed outlet.

[0067] During the seed storage process, the seed inlet and outlet face upwards, which facilitates seed intake. At the same time, the seeds fall into the connection between the seed inlet and outlet and will not be discharged, which facilitates the subsequent seed dispensing process.

[0068] During the seed storage process, the seeds fall to the corner where the seed inlet and seed outlet channels connect. When discharging seeds, only the seeds at the corner are discharged to avoid excessive seed discharge.

[0069] Furthermore, the rotational speed of the cam 302 is designed using the following formula:

[0070] ;

[0071] Where: vm—machine forward speed, mm / s; w—cam 302 rotation speed, rad / s; s—plant spacing, mm.

[0072] The rotation speed of cam 302 can be adjusted according to the plant spacing and forward speed using the formula, resulting in good hole punching and sowing effect and convenient use.

[0073] A device for synchronous punching and sowing includes a mounting frame 101, which is connected to a mobile sowing platform through a frame connection hole 101a. U-shaped connecting plates 103 are provided on both sides of the mounting frame 101 and are connected to the mounting frame 101 through mounting holes 101b.

[0074] The contouring mechanism is equipped with four contouring connecting rods 104, connecting the mounting frame 101 to the mounting plate. The mounting plate is equipped with contouring ground wheels 207, ensuring that the contouring ground wheels 207 are in contact with the ground when the mobile film-laying and seeding platform moves forward on the ground. As the terrain undulates, the device maintains a stable height from the ground under the action of the contouring connecting rods 104, thus ensuring that the drilling cone nail 308 maintains a stable drilling depth during drilling. The length of the contouring rods is designed using the following formula:

[0075] ;

[0076] Where: H—formation amount, mm; l—length of formation link 104, mm; γ—rotation angle of formation link 104, °; γ0—initial angle of formation link 104, °.

[0077] The drilling mechanism uses a "passive membrane breaking, active soil removal" method to drill holes in the membrane. One end of the tension spring 310 is fixed to the mounting plate 201, and the other end is fixed to the drilling lever 306. During the push stroke of the cam 302, the tension spring 310 is gradually stretched, and the drilling cone 308 is forced to break the membrane and remove the soil under the action of the cam 302, moving away from the mulch film. During the return stroke of the cam 302, the tension spring 310 gradually returns to its original length. The rebound force of the tension spring 310 forces the drilling cone 308 into the soil and punctures the mulch film to form a membrane hole. The tension spring 310 has an original length of 50 mm, a wire diameter of 1.8 mm, and a maximum stretch of 16 mm during the movement of the mechanism.

[0078] The punching cone 308 of the punching mechanism exits the soil in the opposite direction of its forward speed during soil removal, swinging out of the membrane hole to prevent the cutting edge of the punching cone 308 from further tearing or picking at the un-drilled membrane during soil removal. The punching cone 308 contains three blades with four cutting edges for breaking the membrane: a set of front and rear cutting edges for cutting longitudinal membrane to ensure the length of the membrane hole, and a set of left and right cutting edges for cutting transverse membrane to ensure the width of the membrane hole.

[0079] The seed inlet channel 405c and the seed outlet channel 405 are perpendicular to each other. During the movement of the mechanism, the seed box 404 swings at an angle of 65°. The limit angle for the seed storage state is 45°, and the limit angle for the seed dispensing state is 20°, which ensures that rapeseed seeds can be effectively stored and dispensed.

[0080] The synchronous sowing mechanism includes a synchronous connecting rod 402 and a seed box 404. A motor drives a cam 302 to rotate, which in turn moves the synchronous connecting rod 402, causing the seed box 404 to oscillate periodically. During the pushing phase of the cam 302, the perforating cone 308 emerges from the soil, and the seed box 404 rotates clockwise to receive and store the seeds introduced by the moving sowing platform. During the returning phase of the cam 302, the perforating cone 308 breaks through the film and enters the soil, and the seed box 404 rotates counterclockwise, allowing the seeds stored in the seed box 404 to be placed into the film holes. The synchronization of the seeds and the film holes is ensured by the coordinated actions of the perforating cone 308 actively emerging from the soil and the seed box 404 storing seeds, and the passively entering the soil and placing seeds.

[0081] The U-shaped connecting plate 103 is equipped with a double-ended bolt 102, and the double-ended bolt 102 is equipped with a contoured connecting rod 104. The other side of the contoured connecting rod 104 is connected to the double-ended bolt 102 on the mounting plate 201 and the mounting plate 203. The mounting plate 201 and the mounting plate 203 are connected by the U-shaped connecting plate 202. The mounting plate 201 and the mounting plate 203 are equipped with a T-shaped plate 206 and a diamond-shaped bearing seat 309. The T-shaped plate 206 is equipped with a contoured ground wheel 207, which is connected to the T-shaped plate 206 through a wheel axle 208. The contoured ground wheel contacts the ground, and under the action of the contoured connecting rod, the device maintains a stable height above the ground as the terrain undulates.

[0082] The mounting plate 201 is equipped with a motor bracket 204, and the motor bracket 204 is equipped with a stepper motor 205, which provides power to the punching mechanism and the synchronous sowing mechanism. The stepper motor 205 is equipped with a coupling 301 and is connected to a camshaft 303, and the camshaft 303 is connected to a cam 302 via a flat key.

[0083] The diamond-shaped bearing seats 309 on mounting plate one and mounting plate two are provided with rocker arm shafts 305. The rocker arm shafts 305 are provided with perforated rocker arm 306. The perforated rocker arm 306 is axially positioned by the set screw of the diamond-shaped bearing seat 309. A roller is provided on the right side of the perforated rocker arm 306. The axial position of the perforated rocker arm 306 is adjusted to ensure that the roller is in contact with the cam.

[0084] A tension spring 310 is provided on the right side of the perforated rocker arm 306, near the center of the rocker arm shaft 305. The other end of the tension spring 310 is connected to the mounting plate 201 by bolts. An L-shaped connecting bracket 307 is provided on the left side of the perforated rocker arm 306. The L-shaped connecting bracket 307 is connected to the perforated rocker arm 306 by bolts.

[0085] The perforated rocker arm 306 has a roller mounting hole 306a, a tension spring mounting hole 306b, a bearing housing mounting hole 306c, and a connecting bracket mounting hole 306d. The perforated tapered nail 308 has a tapered nail mounting hole 308a.

[0086] The cam 302 is connected to the synchronous shaft 401 via a flat key. The synchronous shaft 401 is connected to one end of the synchronous connecting rod 402, and the other end of the synchronous connecting rod 402 is connected to the seed box rotating shaft 403. The seed box rotating shaft 403 is connected to the seed box 404. The seed box 404 is connected to the mounting plate 201 and the mounting plate 203 via the seed box fixing shaft 405. By adjusting the position of the seed box on the seed box fixing shaft, the center of the punching cone is aligned with the center of the seed box's seed drop opening.

[0087] In the above scheme, a mobile sowing platform lays mulch film on the ground in the early stage, driving the device to move at a constant speed in a straight line. A stepper motor 205 provides power, driving the cam 302 to rotate. Driven by the cam 302, the perforating swing rod 306 begins to swing periodically, driving the perforating cone 308 to perform a periodic "breaking the film and entering the soil - exiting the soil" motion. Simultaneously, the cam 302 drives the synchronous connecting rod 402 to move, driving the seed box 404 to swing periodically "counterclockwise - clockwise". When the seed box 404 swings counterclockwise, it gradually tilts downwards, and the seeds roll along the seed channel constrained by the seed box and fall into the film holes. When the seed box 404 swings clockwise, it gradually tilts upwards, receiving and storing the seeds introduced from the mobile sowing platform. This device uses a cam to simultaneously drive the perforating cone and the seed box to complete the film perforation and seed placement operations, resulting in a single power source and a simple structure.

[0088] The working process of this device is as follows: During field sowing, the seed box 404 is first placed in the seed storage state, and the perforating cone 308 is at its highest swing point. The stepper motor 205 is powered on to keep the perforating mechanism and the synchronous sowing mechanism in this state, and the control box is adjusted to select an appropriate speed. When the moving sowing platform begins to lay the mulch and introduce seeds into the seed box 404, the stepper motor 205 is started. As the moving sowing platform moves forward, the cam 302 rotates, the tension spring 310 gradually returns to its original length, and the roller 304, under the tension of the tension spring 310, drives the right side of the perforating swing rod 306 to rotate upward and the left side of the perforating swing rod 306 to rotate downward. The cutting edge of the perforating cone 308 interacts with the mulch to form a hole in the mulch. At the same time, the synchronous connecting rod 402, driven by the cam 302, drives the seed box 404 to rotate counterclockwise. The seed box 404 gradually tilts downward, and the seeds roll down from the seed box 404 and fall into the hole in the mulch. As the stepper motor 205 continues to rotate, the tension spring 310 gradually lengthens. Under the action of the cam 302, the roller 304 drives the right side of the perforating swing rod 306 to swing downward, while the left side rotates upward, causing the perforating cone 308 to move diagonally backward and exit the soil, ensuring that the perforating cone 308 does not tear or lift the film when exiting the soil. At the same time, the synchronous connecting rod 402, driven by the cam 302, drives the seed box 404 to rotate clockwise, and the internal plane of the seed box 404 gradually tilts upward, ensuring that the seeds do not fall out of the seed box 404. The seed box 404 continues to receive seeds falling into the seed box 404 from the carrier platform. As the carrier platform moves to the right, the perforating cone 308 periodically interacts with the mulch film, forming film holes of stable size and plant spacing on the mulch film. At the same time, the seed box 404 performs synchronous periodic oscillation in coordination with the perforating cone 308 for seed storage and dispensing.

[0089] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for synchronized hole drilling and seeding, the apparatus comprising: The device includes a mounting frame for connecting a mobile seeding platform. The front of the mounting frame has a mounting plate, and the bottom of the mounting plate has contoured wheels. A motor is mounted on the mounting plate, and a cam is located at the motor's output end. The mounting plate also includes a punching mechanism and a synchronous seeding mechanism. The punching mechanism comprises a swing arm shaft mounted on the mounting plate, with a rotatable punching swing arm mounted on the swing arm shaft. One end of the punching swing arm has a punch, and the other end has a roller for engaging with the cam. A tension spring is mounted on the mounting plate for connecting to the punching swing arm. During the cam's return stroke, the tension spring forces the punch into the soil and punctures the mulch film using its rebound force. During the cam's push stroke, the tension spring is gradually stretched, and the punch breaks through the mulch film and emerges from the soil under the action of the cam. The synchronous sowing mechanism includes a synchronous connecting rod rotatably mounted on a cam. The synchronous connecting rod is rotatably connected to a seed box, which is rotatably mounted on a mounting plate. During the cam's push stroke, the seed box receives and stores seeds. During the cam's return stroke, the seeds in the seed box are inserted into the membrane holes. The synchronization between the seeds and the membrane holes is ensured by the linkage of two actions: the active soil removal by the perforator and the seed storage in the seed box, and the passive soil insertion by the perforator and the seed insertion in the seed box. The seed box has a seed inlet and a seed outlet on its top, and a seed channel is provided in the middle of the seed box. The seed channel includes a seed inlet channel and a seed outlet channel. The seed inlet channel and the seed outlet channel are not collinear. The included angle between the seed inlet channel and the seed outlet channel is 70°-110°. The cross-sectional area at the inlet of the seed inlet channel is larger than the cross-sectional area at the outlet. The outlet of the seed inlet channel is provided with an arc-shaped constriction structure. Several sets of height adjustment mechanisms are provided between the mounting frame and the mounting plate. Each height adjustment mechanism includes a contouring connecting rod and double-ended bolts mounted on the mounting frame and the mounting plate. The two ends of the contouring connecting rod are rotatably connected to the double-ended bolts. The length of the contouring connecting rod is designed using the following formula: ； Where: H—formation amount, mm; l—formation link length, mm; γ—formation link rotation angle, °; γ0—formation link initial angle.

2. The apparatus for synchronized punch seeding of claim 1, wherein, The mounting plate is provided with a rotating shaft, and the seed box is rotatably mounted on the rotating shaft.

3. The device for simultaneous hole punching and seeding according to claim 1, characterized in that, The seed box is connected to a seed delivery hose, and the seed delivery hose is connected to a seed metering device.

4. The device for simultaneous hole punching and seeding according to claim 1, characterized in that, The mounting plate body includes a mounting plate one and a mounting plate two arranged opposite to each other, and a U-shaped connecting plate is provided between the mounting plate one and the mounting plate two.

5. A method for operating the device for synchronous punching and seeding as described in any one of claims 1-4, characterized in that... The process includes the following steps: During the forward movement of the mobile seeding platform, the stepper motor drives the cam to rotate, and the roller, under the action of the tension spring and the cam, drives the punching lever to swing periodically, so that the puncher forms film holes of stable size and spacing on the mulch film; at the same time, the synchronous linkage, driven by the cam, drives the seed box to swing periodically, which works with the puncher to store and drop seeds.

6. The method of operation of the apparatus for synchronized punch seeding according to claim 5, characterized in that, During the seed storage process, both the seed inlet and the seed outlet face upwards, and the seeds fall from the seed inlet into the connection between the seed inlet and the seed outlet.

7. The working method of the device for synchronous hole punching and seeding according to claim 5, characterized in that, The cam rotation speed is designed using the following formula: ； Where: v m — Machine forward speed, mm / s; w — Cam rotation speed, rad / s; s — Plant spacing, mm.

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