Simple film mulching and punching cabbage transplanting device and method

Abstract

The invention relates to the technical field of crop planting, in particular to a simple film mulching and punching cabbage transplanting device and method.The device comprises a rack and a traction frame arranged on the rack; an unwinding mechanism, a punching mechanism and an operation platform are sequentially arranged on the rack in the operation advancing direction. The two sides of the unwinding mechanism are each provided with a re-pressing mechanism, each re-pressing mechanism comprises a rolling wheel and an adjusting assembly, transplanting is carried out in the mode that mulching film punching is carried out firstly and then manual seedling throwing is carried out, the dependence of equipment on precise mechanical positioning is reduced, a clear reference is provided for seedling throwing through mulching film punching, and workers only need to place seedlings in hole sites; the problem of seedling deflection caused by deviation of hole sites and seedling sites during mechanical seedling planting is effectively solved, the method is particularly suitable for the seedling characteristics of short stems and easy lodging of the cabbages, and the matching precision of the seedlings and the hole sites in the transplanting process is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of crop planting, and specifically relates to a simple film mulching and hole punching device and method for transplanting cabbages. Background Art

[0002] In the field of cabbage planting, the traditional seedling transplanting method faces significant technical bottlenecks: Cabbage transplanting mostly focuses on spring. After the seedlings are dug in the low-temperature environment, the water loss is relatively fast. During the manual transplanting process, in order to maintain the moisture of the seedlings, frequent moisture conservation operations are required, resulting in high labor intensity and low operation efficiency, and it is difficult to meet the labor cost control requirements of large-scale planting.

[0003] In the prior art, Chinese Patent Application Publication No. CN104686037A discloses a device for transplanting and film mulching and hole punching of astragalus seedlings. It integrates functional modules such as ditch opening and seedling planting, fertilization, film mulching and hole punching through a frame, realizing the mechanized operation of astragalus transplanting, and improving the transplanting efficiency and reducing the manual intervention to a certain extent. However, the technical solution of this device is designed according to the biological characteristics of astragalus, and there are essential differences from the planting requirements of cabbages. The device adopts the process route of planting seedlings first and then film mulching and hole punching, and relies on precise hole position positioning and seedling posture control. During the transplanting process of cabbage seedlings, they are prone to skew due to the deviation between the film holes and the seedling positions, which requires extremely high mechanical matching accuracy of the device; moreover, there are significant differences in the seedling morphology of cabbages and astragalus, such as the root diameter, plant height, row and plant spacing, planting depth, etc. Directly applying this device will lead to insufficient adaptability of core components such as the depth control of the ditch opener and the pressure parameters of the seedling pressing wheel; at the same time, cabbage planting pays more attention to the economy and simplicity of operation of the device, while the complex fertilization device and multi-section frame structure and other functional modules in the existing astragalus transplanting device are redundant in the cabbage transplanting scenario, increasing the manufacturing cost and maintenance difficulty. Summary of the Invention

[0004] In view of the above problems, a simple film mulching and hole punching device and method for transplanting cabbages are provided. The transplanting is carried out by the method of film mulching and hole punching first and then manual seedling throwing, reducing the dependence of the device on mechanical precise positioning. By punching holes in the plastic film, a clear benchmark is provided for seedling placement. Workers only need to place the seedlings at the hole positions, effectively avoiding the problem of seedling skew caused by the deviation between the hole positions and the seedling positions during mechanical seedling planting. It is especially suitable for the seedling characteristics of cabbages with short stems and easy lodging, and significantly improves the matching accuracy between the seedlings and the hole positions during the transplanting process.

[0005] To solve the problems of the existing technology, the present invention provides a simple film-covered and hole-punched cabbage transplanting device, which includes a frame and a towing frame arranged on the frame; a film unwinding mechanism for releasing and laying a plastic film on the ground surface, a hole-punching mechanism for punching the laid plastic film, and an operation platform for carrying workers to put cabbage seedlings at the hole positions of the punched plastic film are sequentially arranged on the frame along the operation direction; both sides of the film unwinding mechanism are provided with a recompression mechanism for pressing the film edges, and the recompression mechanism includes a roller in contact with the film edge and an adjustment component for adjusting the pressing force of the roller.

[0006] Preferably, the recompression mechanism further includes a connecting rod hinged to the frame, the roller is rotatably arranged at one end of the connecting rod far from the frame, a driving block is arranged on the frame, and an elastic member is arranged between the driving block and the connecting rod.

[0007] Preferably, a first chute extending in the horizontal direction is arranged on the frame, a driving rod hinged to the middle of the connecting rod is arranged, the other end of the driving rod is slidably arranged on the first chute, and both ends of the elastic member are respectively sleeved on the driving block and the connecting part of the driving rod and the first chute.

[0008] Preferably, the adjustment component includes a rotatable lead screw arranged beside the first chute, the axis of the lead screw extends along the length direction of the first chute, the driving block is sleeved on the lead screw and is in threaded cooperation with it, a second chute extending in the horizontal direction is arranged on the frame, and the driving block is slidably arranged on the second chute.

[0009] Preferably, a support rod parallel to the connecting rod is further arranged beside the connecting rod, and the support rod is hinged to the frame. A support frame is arranged between the bottoms of the support rod and the connecting rod, and a deflecting wheel that can rotate is arranged on the support frame.

[0010] Preferably, the hole-punching mechanism includes a rotating roller arranged on the frame, a plurality of punching columns are arranged on the roller and are equally spaced around its axis, the punching columns extend along the radial direction of the roller, and the punching heads are all hollow cylindrical structures.

[0011] Preferably, the roller is a hollow structure, a plurality of punching columns are all communicated with the inside of the roller, a spiral guiding strip is arranged inside the roller, and opposite threads are arranged at both ends of the guiding strip. Openings are arranged at both ends of the roller.

[0012] Preferably, the operation platform includes two drag plates, and towing ropes connected to the frame are arranged on the two drag plates.

[0013] Preferably, a plurality of guiding blocks are arranged at the bottom of the drag plate along its length direction, and a plurality of mounting seats are arranged on the drag plate along its length direction.

[0014] A method for transplanting cabbages, which is applied to the above-mentioned simple film mulching and hole punching cabbage transplanting device, includes the following steps:

[0015] S1. Connect the transplanting device to an external power device through a towing frame and start it, driving the frame to move along the working direction of the field.

[0016] S2. The film unrolling mechanism releases the plastic film along with the movement of the frame and lays it on the ground surface.

[0017] S3. The rollers of the re-pressing mechanism contact the edge of the plastic film and adjust the pressing force through the adjusting component to compact the edge of the plastic film.

[0018] S4. The hole punching mechanism punches holes in the fixed plastic film at a preset spacing to form transplanting hole positions.

[0019] S5. Workers put cabbage seedlings at the hole positions of the punched plastic film through the operation platform to complete the transplanting operation.

[0020] The beneficial effects of the present invention compared with the prior art are as follows:

[0021] 1. The present invention conducts transplanting by the method of first covering the film and punching holes and then manually putting seedlings, reducing the dependence of the equipment on mechanical precise positioning. By punching holes in the plastic film, a clear benchmark is provided for seedling placement. Workers only need to place the seedlings at the hole positions, effectively avoiding the problem of seedling skew caused by the deviation between the hole position and the seedling position during mechanical seedling planting. It is especially suitable for the characteristics of cabbage seedlings with short stems and easy lodging, significantly improving the matching accuracy between the seedlings and the hole positions during the transplanting process.

[0022] 2. The re-pressing mechanisms arranged on both sides of the film unrolling mechanism of the present invention can dynamically adjust the pressing pressure on the edge of the plastic film through the cooperation of the rollers and the adjusting component for different soil and terrain conditions. It can not only ensure that the edge of the plastic film is closely attached to the ground surface, preventing the film body from shifting due to factors such as wind force and soil humidity changes, but also adapt to the unevenness of the field surface through pressure adjustment, enhancing the stability of the plastic film laying and creating a good heat preservation and moisture preservation environment for the growth of cabbage seedlings.

[0023] 3. Through the parallel hinge setting of the support rod and the connecting rod of the present invention, a stable support structure is provided for the support frame and the guide wheel, enabling the guide wheel to adaptively adjust the height with the undulation of the ground, ensuring that it can roll closely along the ground surface on fields with different flatness, evenly guiding the soil to the edge of the plastic film, realizing the mechanization of the soil covering process, ensuring that the edge of the plastic film is effectively covered by the soil, further improving the fixing effect of the plastic film, and reducing the film body displacement caused by wind force or soil humidity changes, creating a good ground surface environment for the growth of cabbage seedlings. Description of the Drawings

[0024] Figure 1 is a schematic three-dimensional structure of a simple film mulching and hole punching cabbage transplanting deviceFigure 1 .

[0025] Figure 2 is a schematic three - dimensional structure of a simple film - covering and hole - punching cabbage transplanting device Figure 2 .

[0026] Figure 3 is a top - view of a simple film - covering and hole - punching cabbage transplanting device.

[0027] Figure 4 is a schematic three - dimensional structure of the frame, hole - punching mechanism, re - pressing mechanism and film - unreeling mechanism in a simple film - covering and hole - punching cabbage transplanting device Figure 1 .

[0028] Figure 5 is a front - view of the frame, hole - punching mechanism, re - pressing mechanism and film - unreeling mechanism in a simple film - covering and hole - punching cabbage transplanting device

[0029] Figure 6 is a schematic three - dimensional structure of the frame, hole - punching mechanism, re - pressing mechanism and film - unreeling mechanism in a simple film - covering and hole - punching cabbage transplanting device Figure 2 .

[0030] Figure 7 is Figure 6 an enlarged view of part A in

[0031] Figure 8 is Figure 6 an enlarged view of part B in

[0032] Figure 9 is a schematic three - dimensional structure diagram of the frame, hole - punching mechanism and film - unreeling mechanism in a simple film - covering and hole - punching cabbage transplanting device

[0033] Figure 10 is the operation platform in a simple film - covering and hole - punching cabbage transplanting device Figure 6 a schematic three - dimensional structure diagram of part A in

[0034] The reference numerals in the figure are as follows:

[0035] 1. Frame; 11. Tractor frame; 12. Film - unreeling mechanism; 13. Hole - punching mechanism; 131. Roller; 1311. Hole - punching column; 1312. Flow - guiding strip; 1313. Opening; 14. Operation platform; 141. Drag board; 1411. Towing rope; 1412. Flow - guiding block; 1413. Mounting seat; 15. Re - pressing mechanism; 151. Roller; 1511. Connecting rod; 1512. Driving rod; 1513. First sliding groove; 152. Driving block; 1521. Elastic member; 153. Adjusting component; 1531. Second sliding groove; 1532. Lead screw; 154. Support rod; 1541. Support frame; 1542. Flow - guiding wheel; 2. Plastic film. Detailed implementation manners

[0036] In order to further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] As Figures 1 to 6 shown: A simple film-covered and hole-punched cabbage transplanting device includes a frame 1 and a towing frame 11 arranged on the frame 1; along the working travel direction on the frame 1, there are successively arranged a film unwinding mechanism 12 for releasing the plastic film 2 and laying it on the ground surface, a hole-punching mechanism 13 for punching the laid plastic film 2, and an operation platform 14 for carrying workers to put cabbage seedlings at the hole positions of the punched plastic film 2; on both sides of the film unwinding mechanism 12, there are arranged re-pressing mechanisms 15 for pressing the film edges, and the re-pressing mechanism 15 includes rollers 151 in contact with the edges of the plastic film 2 and an adjustment component 153 capable of adjusting the pressing force of the rollers 151.

[0038] This device is connected to an external power source (such as a tractor) through the towing frame 11. Driven by power, the frame 1 moves along the working travel direction of the field. The film unwinding mechanism 12 releases the plastic film 2 and lays it on the ground surface as the frame 1 moves. Subsequently, the two side edges of the plastic film 2 are simultaneously subjected to the pressing action of the rollers 151 in the re-pressing mechanism 15. The pressure applied by the rollers 151 to the edges of the plastic film 2 is adjusted through the adjustment component 153, so that the rollers 151 compact the edges of the plastic film 2 with an appropriate force to ensure that the plastic film 2 will not shift when the subsequent hole-punching mechanism 13 punches holes in the plastic film 2; then the hole-punching mechanism 13 punches holes in the fixed plastic film 2 at a preset interval to form hole positions for transplanting cabbage seedlings; the workers are on the operation platform 14 behind the hole-punching mechanism 13 and put the cabbage seedlings into the holes of the plastic film 2 according to the hole positions to complete the transplanting operation.

[0039] Compared with the prior art, the method of first covering the film and punching holes and then manually putting the seedlings for transplanting is adopted, which reduces the dependence of the equipment on mechanical precise positioning. By punching holes in the plastic film 2, a clear benchmark is provided for seedling placement. The workers only need to place the seedlings at the hole positions, effectively avoiding the problem of seedling skew caused by the deviation between the hole position and the seedling position during mechanical seedling planting. It is especially suitable for the seedling characteristics of cabbage with short stalks and easy lodging, and significantly improves the matching accuracy between the seedlings and the hole positions during the transplanting process.

[0040] Through the cooperation of the rollers 151 and the adjustment component 153 in the re-pressing mechanism 15 arranged on both sides of the film unwinding mechanism 12, the pressing pressure on the edges of the plastic film 2 can be dynamically adjusted according to different soil qualities and terrain conditions. It can not only ensure that the edges of the plastic film 2 are closely attached to the ground surface, preventing the film body from shifting due to factors such as wind force and soil humidity changes, but also adapt to the unevenness of the field surface through pressure adjustment, enhancing the stability of the plastic film 2 laying and creating a good heat preservation and moisture preservation environment for the growth of cabbage seedlings.

[0041] The setting of the operation platform 14 transforms the complex seedling planting process in mechanical transplanting into manual-assisted placement. By leveraging the flexibility of manual operation, it accommodates the morphological differences and transplanting spacing requirements of different varieties of cabbage seedlings, avoiding the high costs and high maintenance difficulties of the complex mechanical seedling clamping and feeding mechanisms in traditional fully automatic transplanting equipment. While ensuring the operation efficiency, it significantly reduces the equipment manufacturing cost and usage threshold, making the device more suitable for the high-efficiency and low-cost transplanting needs in large-scale cabbage planting. It simplifies the cumbersome steps in the traditional transplanting process, improves the coherence and convenience of field operations, and effectively reduces the labor intensity of the staff.

[0042] As Figures 4 to 8 shown: The double-pressing mechanism 15 further includes a connecting rod 1511 hinged to the frame 1. The roller 151 is rotatably arranged at one end of the connecting rod 1511 away from the frame 1. A driving block 152 is arranged on the frame 1, and an elastic member 1521 is arranged between the driving block 152 and the connecting rod 1511.

[0043] When the frame 1 moves along the operation direction, the roller 151 moves synchronously with the frame 1 and contacts the edge of the plastic film 2. Since an elastic member 1521 is arranged between the driving block 152 on the frame 1 and the connecting rod 1511, this elastic member 1521 provides an elastic supporting force for the connecting rod 1511, enabling the connecting rod 1511 to swing relative to the frame 1 around the hinge point. When the ground has undulations or is uneven, the roller 151 undergoes vertical displacement with the changes in the ground height, driving the connecting rod 1511 to swing. At this time, the elastic member 1521 buffers through compression or stretching. While adjusting the pressing angle of the roller 151 on the plastic film 2, it maintains the continuous pressure of the roller 151 on the edge of the plastic film 2, ensuring that the edge of the plastic film 2 is closely attached to the ground surface.

[0044] Through the hinge connection between the connecting rod 1511 and the frame 1, the roller 151 can flexibly adjust its position with the ground undulations, adapting to fields with different flatness levels, avoiding problems such as uneven compaction of the edge of the plastic film 2 or the suspension of the roller 151 caused by ground irregularities, and enhancing the applicability of the device to complex terrains. The elastic member 1521 between the driving block 152 and the connecting rod 1511 can provide a buffering force, slowing down the impact through elastic compression when the roller 151 contacts a ground protrusion and maintaining the pressing effect on the plastic film 2 through elastic stretching when contacting a depression, avoiding the tearing of the plastic film 2 or insufficient pressure that may be caused by rigid compaction, and forming a rigid-flexible combined edge fixing mechanism for the plastic film 2. Compared with traditional fixed pressing wheels, this structure can not only ensure that the edge of the plastic film 2 is effectively compacted to prevent displacement but also adaptively compensate for the contact deviation caused by ground unevenness through elasticity, improving the stability and reliability of the plastic film 2 laying and creating good environmental conditions for the growth of cabbage seedlings.

[0045] As Figures 4 to 8As shown in the figure: A first chute 1513 extending in the horizontal direction is provided on the frame 1. The middle of the connecting rod 1511 is provided with a driving rod 1512 hinged thereto. The other end of the driving rod 1512 is slidably arranged on the first chute 1513. The two ends of the elastic member 1521 are respectively sleeved on the driving block 152 and the connecting part of the driving rod 1512 and the first chute 1513.

[0046] When the frame 1 is towed and moves, the roller 151 moves synchronously with the connecting rod 1511 and compacts the edge of the plastic film 2. If there are undulations on the ground, the roller 151 moves up and down with the terrain, driving the connecting rod 1511 to swing around the hinge point, and then causing the driving rod 1512 to slide in the first chute 1513 through the hinge relationship. At this time, the elastic member 1521 will be stretched or compressed due to the relative displacement of the components, generating an elastic buffer force. When the ground is convex, the roller 151 is lifted, the connecting rod 1511 swings upward, and the elastic member 1521 is compressed or stretched. Its reaction force pushes the roller 151 to maintain the pressure on the plastic film 2, avoiding insufficient compaction caused by suspension; when the ground is concave, the roller 151 sinks, the connecting rod 1511 swings downward, and the elastic member 1521 provides a pulling force or a pushing force through its own deformation, so that the roller 151 continuously adheres to the ground surface, preventing the plastic film 2 from being damaged due to a sudden increase in pressure. Thus, it is ensured that the roller 151 can adaptively adjust through the elastic member 1521 under different terrains, maintain a stable pressure on the edge of the plastic film 2, buffer the ground impact at the same time, and avoid the adverse effects brought by rigid contact.

[0047] In addition to the above connection method of the elastic member 1521, the two ends of the elastic member 1521 can also be respectively sleeved on the driving block 152 and the connecting rod 1511.

[0048] The sliding fit between the first chute 1513 and the driving rod 1512 provides a guiding and moving space for the swing of the connecting rod 1511, enabling the roller 151 to freely adjust the angle and position with the terrain undulation, enhancing the applicability of the device in complex plots such as hills and clay. In addition, this structure automatically completes pressure compensation through mechanical linkage, without the need for manual frequent adjustment of the height or pressure of the roller 151, reducing the manual intervention in field operations, simplifying the operation process, improving the transplanting efficiency, and at the same time, through the combination of rigidity and flexibility design, taking into account the fixing effect of the plastic film 2 and the structural stability of the equipment itself, creating good surface covering conditions for the growth of cabbage seedlings.

[0049] Such as Figures 4 to 8As shown: The adjusting assembly 153 includes a lead screw 1532 that is disposed beside the first sliding groove 1513 and can rotate. The axis of the lead screw 1532 extends along the length direction of the first sliding groove 1513. The driving block 152 is sleeved on the lead screw 1532 and is in threaded cooperation with it. A second sliding groove 1531 that extends in the horizontal direction is provided on the frame 1, and the driving block 152 is slidably disposed on the second sliding groove 1531.

[0050] The second sliding groove 1531 that extends in the horizontal direction on the frame 1 provides sliding guidance for the driving block 152, enabling it to move only along the axial direction of the lead screw 1532. When the lead screw 1532 is rotated, the driving block 152 that is sleeved on the lead screw 1532 and is in threaded cooperation with it will, due to the principle of screw drive, perform a linear motion in the second sliding groove 1531 along the axial direction of the lead screw 1532. Since the driving block 152 is connected to the elastic member 1521, and the other end of the elastic member 1521 is connected to the driving rod 1512 or the connecting rod 1511, the movement of the driving block 152 will change the initial length of the elastic member 1521, causing it to undergo tensile or compressive deformation, thereby adjusting the magnitude of the elastic force exerted by the elastic member 1521 on the driving rod 1512 or the connecting rod 1511.

[0051] Through the threaded cooperation between the lead screw 1532 and the driving block 152, the rotational motion is converted into a linear motion, achieving precise adjustment of the pre-tightening force of the elastic member 1521. Furthermore, it is possible to flexibly adjust the pressing pressure of the roller 151 on the edge of the plastic film 2 according to actual operating conditions such as the material of the plastic film 2 and the type of soil. When operating on soft ground such as sandy soil, the lead screw 1532 can be rotated to move the driving block 152, reducing the pre-tightening force of the elastic member 1521 to avoid the plastic film 2 sinking into the soil or being damaged due to excessive pressure; while when operating on harder ground such as clay soil, the pre-tightening force of the elastic member 1521 can be increased to ensure that the roller 151 can effectively compact the edge of the film and prevent the plastic film 2 from curling. This adjustable pressing pressure method enables the device to adapt to different operating environments, improving the quality and stability of the plastic film 2 laying. The self-locking characteristic of the lead screw 1532 drive enables the driving block 152 to remain in its current position after the adjustment is completed, eliminating the need for an additional locking device, simplifying the operation process, and improving the efficiency of field operations.

[0052] As Figures 4 to 8 shown: A support rod 154 that is parallel to it is also provided beside the connecting rod 1511, and the support rod 154 is hinged to the frame 1. A support frame 1541 is provided between the bottoms of the support rod 154 and the connecting rod 1511, and a deflecting wheel 1542 that can rotate is provided on the support frame 1541.

[0053] When the frame 1 moves forward along the field under the traction force, the connecting rod 1511 and the support rod 154 move synchronously with the frame 1. The two can swing around the frame 1 through the hinge point to adapt to the ground undulation. The support frame 1541 forms a stable connection at the bottom of the connecting rod 1511 and the support rod 154, so that the guide wheel 1542 always keeps in contact with the ground surface. As the frame 1 moves, the guide wheel 1542 rolls on the ground surface, guiding the soil outside the edge of the plastic film 2 or the soil generated by ditch digging to the edge of the plastic film 2, so that the soil covers and accumulates outside the edge of the plastic film 2. Cooperating with the pressing action of the roller 151 on the edge of the plastic film 2, a double fixation of the plastic film 2 is formed.

[0054] Through the parallel hinge setting of the support rod 154 and the connecting rod 1511, a stable support structure for the support frame 1541 and the guide wheel 1542 is provided, enabling the guide wheel 1542 to adaptively adjust its height with the ground undulation, ensuring that it can roll along the ground surface on fields with different flatness, evenly guiding the soil to the edge of the plastic film 2, and avoiding soil covering omission or uneven accumulation caused by uneven ground. The guide wheel 1542 is preferably inclined, and its inclination angle is adjustable. The rotational setting of the guide wheel 1542 reduces the frictional resistance with the soil, enabling it to roll smoothly with the movement of the frame 1. Without additional power drive, it can naturally divert the soil to the edge of the plastic film 2, realizing the mechanization of the soil covering process, eliminating the cumbersome steps of traditional manual soil covering, and reducing the labor intensity. The stable structure formed by the support rod 154, the connecting rod 1511 and the support frame 1541 enhances the overall rigidity and anti-shaking ability of the double pressing mechanism 15, making the soil diversion direction of the guide wheel 1542 more accurate, ensuring that the edge of the plastic film 2 is effectively covered by the soil, further improving the fixing effect of the plastic film 2, and reducing the film body displacement caused by wind or soil humidity changes, creating a good ground environment for the growth of cabbage seedlings.

[0055] As Figures 1 to 4 and Figure 9 shown: The punching mechanism 13 includes a rotating roller 131 arranged on the frame 1. A plurality of punching columns 1311 are arranged on the roller 131 at equal intervals around its axis. The punching columns 1311 extend along the radial direction of the roller 131, and the punching heads are all hollow cylinder structures.

[0056] The rotating roller 131 is rotatably arranged on the frame 1. When the frame 1 moves with the traction power, the rotating roller 131 will rotate, causing the multiple punching columns 1311 evenly distributed at equal intervals around its axis to rotate synchronously with the rotating roller 131. The punching columns 1311 extend radially along the rotating roller 131. When the punching head rotates to the position in contact with the plastic film 2 on the rotating roller 131, it pierces into the plastic film 2 along the rotation direction of the rotating roller 131, and uses the edge of the columnar body with a hollow structure to cut the plastic film 2 to form circular holes matching the diameter of the punching head. Since the punching columns 1311 are evenly distributed at equal intervals, when the rotating roller 131 rotates one week, multiple evenly distributed hole positions will be continuously punched on the plastic film 2 at a preset interval, and regular arranged transplanting holes are formed as the frame 1 moves.

[0057] The design of the punching columns 1311 evenly distributed at equal intervals ensures the uniform distribution of the hole positions on the plastic film 2, can accurately meet the row spacing and plant spacing requirements for cabbage planting, avoids the problem of chaotic seedling spacing caused by manual punching or non-uniform punching, and provides a standardized space layout for the growth of cabbage seedlings.

[0058] As Figures 1 to 4 and Figure 9 shown in the figure: The rotating roller 131 has a hollow structure. Multiple punching columns 1311 are all connected to the inside of the rotating roller 131. A spiral guiding strip 1312 is arranged inside the rotating roller 131, and opposite threads are arranged at both ends of the guiding strip 1312. Openings 1313 are provided at both ends of the rotating roller 131.

[0059] When the rotating roller 131 moves with the frame 1 and rotates around the axis, the hollow-structured rotating roller 131 is connected to the outside through the openings 1313 at both ends. When the punching columns 1311 rotate with the rotating roller 131 and pierce into the plastic film 2, the soil or debris of the plastic film 2 generated during the punching process is introduced into the inside of the rotating roller 131 through their hollow columnar bodies. The spiral guiding strip 1312 inside the rotating roller 131 rotates with the rotating roller 131, and forms a two-way guiding effect by using the opposite threads at both ends. When the rotating roller 131 rotates in the preset direction, the guiding strip 1312 pushes the soil or debris entering the inside of the rotating roller 131 through the spiral surface, making it move along the axis of the rotating roller 131 towards the openings 1313 at both ends and be discharged, avoiding the accumulation and blockage of debris inside the rotating roller 131. The connection structure between the punching columns 1311 and the inside of the rotating roller 131 enables the soil generated during punching to enter the rotating roller 131 through the hollow columnar body, and then be discharged from the openings 1313 at both ends under the guidance of the guiding strip 1312, ensuring that the hollow channels of the punching columns 1311 are always unobstructed and maintaining the stability of continuous punching operations.

[0060] By setting the guide strip 1312, the soil or debris generated by the drilling is discharged from the openings 1313 at both ends of the roller 131, avoiding the debris from being retained in the drilling column 1311 or the roller 131. There is no need for frequent manual cleaning, ensuring that the drilling mechanism 13 can work continuously and stably. It is especially suitable for scenes prone to stickiness such as clay and wet soil, reducing the downtime and maintenance time caused by blockage.

[0061] like Figures 1 to 3 and Figure 10 As shown, the operating platform 14 includes two carriages 141 , and the two carriages 141 are provided with traction ropes 1411 connected with the frame 1 .

[0062] The two carriages 141 of the operating platform 14 are connected to the frame 1 through the traction rope 1411. When the frame 1 moves along the field under the traction power, the carriage 141 moves synchronously with the frame 1 and contacts the ground surface. The traction rope 1411 forms a flexible traction on the carriage 141, so that it can maintain its relative position with the frame 1 and can swing or float up and down with the ground. When the staff stands or sits on the carriage 141 to place the seedlings, the carriage 141 always maintains a suitable operating distance from the hole position of the ground film 2 through the traction of the traction rope 1411, avoiding the platform shaking caused by the bumps of the frame 1 or the uneven ground, and providing a stable working fulcrum for the staff.

[0063] like Figures 1 to 3 and Figure 10 As shown: a plurality of guide blocks 1412 arranged along the length direction are disposed at the bottom of the carriage 141, and a plurality of mounting seats 1413 arranged along the length direction are disposed on the carriage 141.

[0064] The guide blocks 1412 arranged along the length direction at the bottom of the carriage 141 come into contact with the ground when the carriage 141 moves with the random rack 1. The guide blocks 1412 are preferably provided with an inclined or curved surface, so that the soil, gravel or weeds encountered during the movement can be diverted to the sides of the carriage 141 to avoid the accumulation of debris under the carriage 141, reduce the friction resistance between the carriage 141 and the ground, and enable the carriage 141 to move more smoothly with the random rack 1. The mounting seats 1413 arranged along the length direction on the carriage 141 provide adjustable fixed connection points for the staff. According to the operating habits or the requirements for seedling placement, seats, baskets or other auxiliary tools can be installed on the mounting seats 1413 to make the layout of the operating platform 14 more flexible.

[0065] like Figures 1 to 6 As shown: A cabbage transplanting method is applied to the above-mentioned simple film-covered and perforated cabbage transplanting device, comprising the following steps:

[0066] S1. Connect the transplanting device to the external power equipment through the traction frame 11 and start it, driving the frame 1 to move along the field operation direction.

[0067] S2. The unwinding mechanism 12 moves along with the machine frame 1 to release the plastic film 2 and lays it on the ground surface.

[0068] S3. The roller 151 of the double - pressing mechanism 15 contacts the edge of the plastic film 2 and adjusts the pressing force through the adjusting component 153 to compact the edge of the plastic film 2.

[0069] S4. The punching mechanism 13 punches the fixed plastic film 2 at a preset interval to form transplanting hole positions.

[0070] S5. The operator puts the cabbage seedlings at the hole positions of the punched plastic film 2 through the operation platform 14 to complete the transplanting operation.

[0071] The above - mentioned embodiments only represent one or several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A simple film-covered and perforated cabbage transplanting device, comprising a frame and a traction frame arranged on the frame; characterized in that: The frame is provided with an unwinding mechanism for releasing the ground film and laying it on the ground surface, a punching mechanism for punching holes in the laid ground film, and an operating platform for carrying workers to place cabbage seedlings at the holes of the ground film after punching. Both sides of the unwinding mechanism are provided with a re-pressing mechanism for applying pressure to the edge of the film, and the re-pressing mechanism comprises a roller in contact with the edge of the ground film and an adjusting component capable of adjusting the pressure of the roller.

2. The simple film-covered and perforated cabbage transplanting device according to claim 1 is characterized in that: The re-pressing mechanism also includes a connecting rod hinged on the frame, a roller is rotatably arranged on one end of the connecting rod away from the frame, a driving block is arranged on the frame, and an elastic member is arranged between the driving block and the connecting rod.

3. The simple film-covered and perforated cabbage transplanting device according to claim 2 is characterized in that: The frame is provided with a first slide groove extending in the horizontal direction, a driving rod hinged to the connecting rod is provided in the middle part of the connecting rod, the other end of the driving rod is slidably arranged on the first slide groove, and the two ends of the elastic member are respectively sleeved on the connecting part between the driving block and the driving rod and the first slide groove.

4. The simple film-covered and perforated cabbage transplanting device according to claim 3 is characterized in that: The adjusting component includes a screw rod which is arranged beside the first slide groove and can rotate. The axis of the screw rod extends along the length direction of the first slide groove. The driving block is sleeved on the screw rod and cooperates with its thread. A second slide groove extending in the horizontal direction is arranged on the frame, and the driving block is slidably arranged on the second slide groove.

5. The simple film-covered and perforated cabbage transplanting device according to claim 2 is characterized in that: A support rod parallel to the connecting rod is also arranged on the side thereof, and the support rod is hinged to the frame, a support frame is arranged between the support rod and the bottom of the connecting rod, and a rotatable guide wheel is arranged on the support frame.

6. The simple film-covered and perforated cabbage transplanting device according to claim 1, characterized in that: The punching mechanism comprises a rotating roller rotatably arranged on a frame, a plurality of punching columns equidistantly arranged on the rotating roller surrounding its axis are arranged on the rotating roller, the punching columns extend radially along the rotating roller, and the punching heads are all hollow cylindrical structures.

7. The simple film-covered and perforated cabbage transplanting device according to claim 6, characterized in that: The roller is a hollow structure, and a plurality of perforated columns are connected to the interior of the roller. A spiral guide strip is arranged inside the roller, and opposite threads are arranged at both ends of the guide strip. Both ends of the roller are provided with openings.

8. The simple film-covered and perforated cabbage transplanting device according to claim 1, characterized in that: The operating platform comprises two drag plates, on which traction ropes connected with the frame are arranged.

9. The simple film-covered and perforated cabbage transplanting device according to claim 8, characterized in that: The bottom of the carriage is provided with a plurality of guide blocks arranged along the length direction thereof, and the carriage is provided with a plurality of mounting seats arranged along the length direction thereof.

10. A cabbage transplanting method, applied to the simple film-covered and perforated cabbage transplanting device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Connect the transplanting device to the external power equipment through the traction frame and start it, driving the frame to move along the field operation direction; S2, the unwinding mechanism moves randomly to release the ground film and lay it on the ground surface; S3, the roller of the re-pressing mechanism contacts the edge of the ground film and adjusts the pressure through the adjusting component to compact the edge of the ground film; S4, the punching mechanism punches holes in the fixed ground film at a preset interval to form transplanting holes; S5. The staff uses the operating platform to place the cabbage seedlings in the holes of the ground film after drilling to complete the transplanting operation.

Images