Intermittent dicing and seedling throwing machine for bowl blanket-shaped rice seedlings

Abstract

The invention discloses a rice bowl blanket-shaped seedling intermittent dicing and throwing machine which comprises a rack and a primary seedling feeding device, a secondary seedling feeding device, a strip cutting device and a rotary dicing device which are arranged on the rack, the primary seedling feeding device and the secondary seedling feeding device are linked to synchronously feed seedlings, the strip cutting device cuts blanket-shaped seedlings into strips, the rotary dicing device cuts the seedlings into blocks, and the rotary dicing device cuts the seedlings into blocks. The slitting device comprises a disc cutter shaft group, a cutter motor and two groups of cam lifting mechanisms which are respectively arranged at two ends of the disc cutter shaft group and are used for driving the disc cutter shaft group to lift; the disc cutter shaft group comprises a cutter shaft which is horizontally arranged and disc cutters which are arranged on the cutter shaft side by side at intervals; the cam lifting mechanism comprises a cam and lifting assemblies, the two ends of the cutter shaft are connected with the lifting assemblies respectively, the cutter motor is arranged on the lifting assemblies, and the cam is arranged on the rack and is in transmission connection with the power output end of the rotary dicing device through the chain transmission mechanism to achieve linkage of dicing and slitting operation. And the accuracy of conveying, strip cutting and block cutting can be ensured.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural engineering, and in particular to a rice pot-shaped blanket seedling discontinuous cutting and throwing machine. Background Art

[0002] There are three main rice planting methods: direct seeding, transplanting, and broadcasting. While direct seeding is simple and convenient, it suffers from issues like poor crop rotation continuity and a high incidence of weeds, pests, and diseases. Transplanting, while somewhat addressing these issues, still presents drawbacks such as a complex structure, high cost, a limited number of rows, and low efficiency. Furthermore, the transplanting process can cause significant damage to the seedling blanket, leading to a prolonged seedling regreening period.

[0003] Rice seedling broadcasting mainly involves throwing rice seedlings in pots. Because the seedlings come with their own soil pots, broadcasting does not damage the roots and allows for rapid regrowth. However, this type of broadcasting machine requires specialized seedling trays for growing seedlings, making loading and transporting the seedlings difficult, resulting in low production efficiency and high labor costs. Rice seedling blankets in pots combine the advantages of rapid regrowth and the ability to be rolled up and easily loaded and transported. However, the existing method of broadcasting rice seedling blankets by cutting and broadcasting rice seedlings is inefficient and cannot achieve continuous seedling transportation and broadcasting production. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the existing technology and provide a rice pot blanket seedling intermittent cutting and blocking machine. Its structural layout is compact, and the accuracy of the transportation, strip cutting and blocking of the pot blanket seedlings can be ensured through two-stage seedling feeding linkage control and linkage control of strip cutting and blocking.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: A rice seedling intermittent cutting and throwing machine for blanket-shaped seedlings in a pot, comprising a frame and a first-level seedling feeding device, a strip-cutting seedling feeding device and a rotary cutting device arranged on the frame and arranged in sequence along the conveying direction of the blanket-shaped seedlings, the strip-cutting seedling feeding device comprising a second-level seedling feeding device and a strip-cutting device located below the second-level seedling feeding device, the first-level seedling feeding device and the second-level seedling feeding device being connected by a seedling feeding power transmission mechanism to realize linked seedling feeding, the first-level seedling feeding device being used to transport the blanket-shaped seedlings to the second-level seedling feeding device to be cut into seedlings by the strip-cutting device, the second-level seedling feeding device being used to transport the seedlings to the rotary cutting device to be cut into block-shaped pot seedlings, the strip-cutting device comprising a group of disc cutting knife shaft groups, a cutting knife motor for driving the disc cutting knife shaft group to rotate, and two groups of cam lifting mechanisms arranged at both ends of the disc cutting knife shaft group for driving it to rise and fall, the disc cutting knife shaft The group includes a horizontally arranged cutting shaft and disc cutting knives installed side by side on the cutting shaft. A distance consistent with the width of the saplings is set between adjacent disc cutting knives, and the rotation direction of the disc cutting knives is the same as the movement direction of the blanket seedlings; the cam lifting mechanism includes a cam and a lifting assembly driven by the cam, the two ends of the cutting shaft are respectively connected to a lifting assembly, the cutting knife motor is installed on the lifting assembly, and the cam is installed on the frame through a cam driving shaft. The power input end of the cam driving shaft is connected to the power output end of the rotary cutting device through a cam driving chain transmission mechanism. When the rotary cutting device performs cutting operation, its power is transmitted to the cam to make it rotate synchronously, and the lifting assembly then drives the cutting shaft and the disc cutting knife to rise and fall to perform strip cutting operation, thereby realizing the linkage between cutting and strip cutting operations.

[0006] Furthermore, the frame includes more than two frames arranged side by side and extending along the conveying direction, and the outer side of the frame corresponding to the strip cutting device is provided with a mounting plate extending downward and parallel to each other; the two groups of lifting components each include two groups of guide shafts, two groups of guide tubes, rollers and a cutter shaft mounting plate, the two groups of guide shafts are arranged vertically and the upper and lower ends are mounted on the mounting seats of the mounting plate, the two groups of guide tubes are movably sleeved on a guide shaft, the cutter shaft mounting plate is fixedly connected to the two groups of guide tubes, the two ends of the cutter shaft pass through the vertical strip holes provided on the mounting plate and are rotatably connected to the cutter shaft mounting plate, the roller is mounted on the cutter shaft mounting plate and contacts the top of the cam, the cutter motor is mounted on the cutter shaft mounting plate through the motor mounting plate, and when the cam rotates, the roller rises and falls accordingly to drive the cutter shaft mounting plate to move up and down along the guide shaft.

[0007] Furthermore, a cutting support plate is also installed on the cutter shaft mounting plate. The cutting support plate is a horizontally placed U-shaped plate. The two side plates of the U-shaped plate are respectively connected to the cutter shaft mounting plate by connecting bolts, and are located on the side close to the rotating cutting device. When the cutter shaft mounting plate moves up and down along the guide shaft, the cutting support plate rises and falls synchronously with the cutter shaft mounting plate to support and position the slender strips after the cutting operation, and cooperate with the rotating cutting device to perform the cutting operation.

[0008] Furthermore, the first-level seedling-feeding device includes a first-level seedling-feeding active shaft and a first-level seedling-feeding driven shaft rotatably mounted on the bottom of the two frames and parallel to the cutter shaft, and the first-level seedling-feeding active shaft and the first-level seedling-feeding driven shaft are connected through a first-level conveyor belt transmission assembly; a seedling-pushing plate for pushing the pot seedlings is also provided above the first-level conveyor belt transmission assembly, and the seedling-pushing plate is parallel to the first-level seedling-feeding active shaft; the first-level conveyor belt transmission assembly includes a first-level seedling-feeding active wheel mounted in the middle of the first-level seedling-feeding active shaft, a first-level seedling-feeding driven wheel mounted in the middle of the first-level seedling-feeding driven shaft, and a first-level seedling-feeding active wheel and The two ends of the seedling pushing plate are respectively connected to the first-level seedling feeding chain on the corresponding side and are located above the first-level seedling feeding conveyor belt and move synchronously with it. When the first-level seedling feeding chain moves one section, the first-level seedling feeding conveyor belt sends the seedlings forward once.

[0009] Furthermore, the secondary seedling feeding device includes a secondary seedling feeding active shaft and a secondary seedling feeding driven shaft installed on the mounting plate, and the secondary seedling feeding active shaft and the secondary seedling feeding driven shaft are transmission-connected through N groups of secondary conveyor belt assemblies arranged at intervals, and the intervals correspond one-to-one to the disc cutting knife; the secondary conveyor belt assembly includes a secondary seedling feeding active wheel provided on the secondary seedling feeding active shaft, a secondary seedling feeding driven wheel provided on the secondary seedling feeding driven shaft, and a secondary seedling feeding conveyor belt transmission-connected to the secondary seedling feeding active wheel and the secondary seedling feeding driven wheel; the secondary seedling feeding active shaft is arranged adjacent to the primary seedling feeding active shaft; the secondary seedling feeding device also includes a tensioning shaft installed on the mounting plate and parallel to the secondary seedling feeding active shaft, and the tensioning shaft is located below between the secondary seedling feeding active shaft and the secondary seedling feeding driven shaft to tension the secondary seedling feeding conveyor belt outward.

[0010] Furthermore, the rotary cutting device includes an intermediate shaft parallel to the cutter shaft, a roller-type cutting mechanism coaxially mounted on the intermediate shaft, and a cutter adjustment mechanism. Both ends of the intermediate shaft are rotatably mounted on the frame through bearings, and one end is connected to the cutting power transmission mechanism, and the other end is connected to the cam drive chain transmission mechanism as the power output end of the rotary cutting device; the roller-type cutting mechanism includes two groups of triangular side brackets and three groups of cutting blade shaft assemblies, the two groups of triangular side brackets are coaxially mounted at both ends of the intermediate shaft and located on the inner side of the frame, a group of the cutting blade shaft assembly is installed between the corresponding top ends of the two groups of triangular side brackets, the three groups of cutting blade shaft assemblies are all parallel to the intermediate shaft and are evenly arranged in a concentric circle around its circumference. When the intermediate shaft rotates, the cutting blade shaft assembly is driven to rotate synchronously through the triangular side brackets; the cutting blade shaft assembly includes a hollow cutting blade. The knife mounting shaft and the cutting knife support shaft, the two ends of the cutting knife support shaft are respectively connected to the triangular side bracket through bearings, the cutting knife mounting shaft is sleeved on the cutting knife support shaft, and linear bearings are installed between the two ends of the inner cavity of the cutting knife mounting shaft and the outer wall of the cutting knife support shaft and fixed by a retaining spring. A row of cutting knives corresponding to the number of slender strips is axially provided on the outside of the cutting knife mounting shaft, and the cutting plane of the cutting knife is perpendicular to the cutting surface of the blanket seedlings. The distance between adjacent cutting knives on the same cutting knife mounting shaft is consistent with the width of the slender strips. The cutting knives on adjacent cutting knife mounting shafts are staggered by the distance of one pot seedling in sequence along the axial direction. The width of the slender strips is consistent with the width of 3 pot seedlings; the cutting knife adjustment mechanism is connected to one end of the cutting knife support shaft and is used to ensure that the cutting plane of the cutting knife always remains perpendicular to the cutting surface of the blanket seedlings when the intermediate shaft rotates.

[0011] Furthermore, the cutter adjustment mechanism includes an eccentric wheel, a triangular spoke plate, and a connecting rod. One side of the eccentric wheel is mounted on the frame via a connecting bolt, and the other side is provided with a protruding concentric ring and is mounted in the center hole of the triangular spoke plate via a bearing. An eccentric through hole is provided on the eccentric wheel in the concentric ring. The power input end of the intermediate shaft passes through the eccentric through hole and is rotatably connected to the frame. The center line of the eccentric wheel is parallel to and directly below the axis of the intermediate shaft. The triangular spoke plate is located between the eccentric wheel and the triangular side bracket, and each vertex of the triangular spoke plate is connected to each cutting knife support shaft through the connecting rod. One end of the connecting rod is provided with a through hole and is fixedly connected to the end of the cutting knife support shaft, and the other end is provided with a connecting rod shaft parallel to the cutting knife support shaft and hinged to the vertex of the triangular spoke plate. The axis of the connecting rod shaft and the cutting knife support shaft are located in the same vertical plane and are parallel to the cutting knife plane. When the cutting knife support shaft rotates around the intermediate shaft, the triangular spoke plate rotates synchronously around the center of the eccentric wheel, so that the cutting knife support shaft does not rotate on its own, and the cutting plane of the cutting knife always remains perpendicular to the cutting surface of the blanket seedling.

[0012] Furthermore, the rotary cutting device also includes a transverse adjustment component for driving the cutting knife to perform transverse movement on the carpet-like seedling cutting surface, the transverse adjustment component includes a transverse shaft, a transverse groove, a compression spring and a transverse trigger plate, the transverse groove is axially arranged on the side wall of the cutting knife support shaft away from the triangular spoke plate, one end of the transverse shaft is coaxially mounted on the inner cavity of the cutting knife support shaft and is connected to the cutting knife mounting shaft through a connecting bolt provided in the transverse groove to form an integral structure, the other end of the transverse shaft is located outside the cutting knife support shaft and is in the shape of a ball head, and the transverse trigger plate is vertically The traverse is mounted on a frame near the end of the transverse shaft and matches the motion trajectory of the cutting knife support shaft. The transverse trigger plate protrudes from the middle inner side of the transverse shaft and gradually concave at both ends. The compression spring is sleeved on one end of the cutting knife support shaft close to the triangular spoke plate and rests between the cutting knife mounting shaft and the triangular side bracket. When the intermediate shaft rotates to a predetermined position, the ball head end of the transverse shaft contacts the inner side of the transverse trigger plate and is pushed to move transversely along the transverse groove and drive the cutting knife to move transversely through the cutting knife mounting shaft. The compression spring is used to reset the cutting knife mounting shaft after the transverse shaft leaves the transverse trigger plate.

[0013] Furthermore, the cutting knife is L-shaped, including a handle in a vertical section and a cutting plane in a horizontal section. The handle is vertically mounted on the cutting knife mounting shaft, and the cutting plane is located in a vertical plane parallel to the axial direction of the cutting knife mounting shaft and extends toward the end where a compression spring is provided. The bottom and end of the horizontal section are both provided with cutting edges. The cutting knives on each cutting knife mounting shaft are arranged in the order of cutting along the direction of rotation of the intermediate shaft, namely, cutting knife No. 1, cutting knife No. 2 and cutting knife No. 3. The cutting knife No. 1 corresponds to the first potted seedling of the slender, the cutting knife No. 2 corresponds to the second potted seedling in the middle of the slender, and the cutting knife No. 3 corresponds to the third potted seedling of the slender.

[0014] Furthermore, the cutting power transmission mechanism includes a cutting motor installed on the frame, a cutting sprocket installed on the output shaft of the cutting motor, a cutting device driven sprocket installed on the power input end of the intermediate shaft, and a cutting chain connected to the cutting device driven sprocket and the cutting sprocket. The cutting chain transmits the power of the cutting motor to the driven sprocket of the cutting device, drives the intermediate shaft to rotate, and realizes the rotary cutting movement of the rotating cutting knife mechanism; the cam drive chain transmission mechanism includes a cam drive sprocket, a cam drive active sprocket and a cam drive chain. The cam drive active sprocket is installed on the power output end of the intermediate shaft, and the cam drive sprocket is installed on the power input end of the cam drive shaft. The cam drive active sprocket transmits power to the cam drive sprocket through the cam drive chain, drives the cam to rotate, and realizes the lifting and cutting movement of the disc cutting knife.

[0015] Furthermore, the seedling sending power transmission mechanism includes a seedling sending motor mounted on a mounting plate, the output shaft of the seedling sending motor is parallel to and located below the first-level seedling sending active shaft, the end of the output shaft passes through the mounting plate and is equipped with a seedling sending sprocket, the power input end of the first-level seedling sending active shaft is equipped with a first-level seedling sending sprocket, and the power input end of the second-level seedling sending active shaft is equipped with a second-level seedling sending sprocket, the seedling sending sprocket, the first-level seedling sending sprocket and the second-level seedling sending sprocket are arranged in a triangle and are connected by a seedling sending drive chain, driving the second-level seedling sending active shaft and the first-level seedling sending active shaft to operate synchronously and in the same direction.

[0016] Furthermore, the frame further includes a seedling delivery plate and a seedling cutting plate provided at the bottom of the frame, a blanket-shaped seedling conveying trough and a seedling strip conveying trough are respectively formed between the frame and the seedling delivery plate and the seedling cutting plate, the first-level seedling delivery device is provided below the blanket-shaped seedling conveying trough, and a first installation notch for passing the first-level seedling delivery conveyor belt is provided on the seedling delivery plate; The secondary seedling delivery device and the strip cutting device are arranged below the seedling conveying trough. The cutting seedling loading board is provided with a cutting knife slot and a second installation notch for passing the secondary seedling delivery conveyor belt. The cutting knife slot is located between two adjacent groups of secondary seedling delivery conveyor belts. The disc cutting knife performs strip cutting through the cutting knife slot when operating; a frame connecting plate is provided at the end of the frame, and two seedling loading connecting plates are installed below the seedling delivery board by connecting bolts, and the two ends of the seedling loading connecting plate are connected to the bottom of the frame by the seedling loading board mounting parts; the two sides of the cutting seedling loading board are connected to the bottom of the frame and are lower than the seedling delivery board.

[0017] Furthermore, the seedling pushing plates are provided with two pieces, the spacing between the two seedling pushing plates is smaller than the length of the seedling delivery and loading plate, the top of the seedling pushing plates is provided with serrations, and the end of the cutting and loading plate close to the seedling delivery and loading plate is provided with trapezoidal teeth matching the serrations.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention relates to a rice seedling planting machine for intermittent cutting and dicing of blanket-shaped rice seedlings in a rice pot. The stripping device comprises a disc cutting blade assembly, a cutting blade motor for driving the disc cutting blade assembly to rotate, and a cam lifting mechanism for driving the disc cutting blade assembly to lift and lower for stripping. The structure is simple. The cam drive chain transmission mechanism transmits the power in the rotating cutting blade assembly to the cam in the stripping device to rotate it, driving the disc cutting blade assembly to lift and lower, so that the disc cutting blade assembly lifts and lowers while rotating to cut strips. This achieves the coordinated operation of the stripping device and the cutting blade assembly, forming an organic whole. The secondary seedling delivery device and the primary seedling delivery device are synchronized in motion through the seedling delivery power transmission chain mechanism, ensuring the accuracy of seedling delivery, stripping, and dicing, and achieving high cutting efficiency. When the seedling delivery device is delivering seedlings, the disc cutting blade assembly in the stripping device can be hidden under the frame by lifting and lowering, which can prevent the movement of the cutting blade assembly during the seedling delivery operation from affecting the accuracy of the seedling delivery. The direction of rotation of the cutting blade is the same as the direction of motion of the seedlings in the pot, which can prevent the stripping movement from affecting the normal delivery of the seedlings in the pot.

[0019] 2. The rice seedling blanket-shaped intermittent cutting and transplanting machine of the present invention adopts a chain to connect the seedling pushing rod to achieve accurate delivery of the seedlings to the tray during the seedling delivery operation. The length of the chain link is the length of the seedling. When the chain moves one link, the seedling moves one seedling position, which can achieve accurate delivery of the seedlings.

[0020] 3. The intermittent cutting and transplanting machine for rice blanket seedlings in pots of the present invention has a strip cutting device that can cut the blanket seedlings in pots into strips at set intervals. The cutting knives on adjacent cutting knife mounting shafts are staggered one distance apart from each other along the axial direction. The rotary cutting device rotates one circle in a specific order. The cutting knives on the three groups of cutting knife mounting shafts can complete the cutting operation of the three seedlings in the strips in turn. The rotary cutting device is provided with a transverse adjustment component to realize the transverse movement and resetting of the cutting knife, and the entire transplanting process is efficient and orderly.

[0021] 4. The rice seedlings in a pot are cut into pieces and transplanted by the rice seedling transplanter. The front end and the end of the cutting knife that come into contact with the seedlings in the pot are both provided with cutting edges, which can realize the rapid cutting of the seedlings in the pot. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the rice transplanter of the present invention.

[0023] Figure 2 It is a schematic diagram of the exploded structure of the entire rice transplanter of the present invention.

[0024] Figure 3 It is a structural schematic diagram of a frame in a rice seedling throwing machine of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the first-level seedling delivery device in the rice seedling throwing machine of the present invention.

[0026] Figure 5 It is a structural schematic diagram of the secondary seedling delivery device in the rice seedling throwing machine of the present invention.

[0027] Figure 6 It is a structural schematic diagram of the strip cutting device in the rice seedling throwing machine of the present invention.

[0028] Figure 7 It is a structural schematic diagram of the up and down movement of the strip cutting device in the rice seedling throwing machine of the present invention.

[0029] Figure 8 It is a structural schematic diagram of the rotary cutting device in the rice seedling throwing machine of the present invention.

[0030] Figure 9 It is a structural schematic diagram of the cutting knife shaft assembly in the rice seedling throwing machine of the present invention.

[0031] Figure 10 It is a diagram of the cutting sequence of the rotary cutting device in the rice seedling throwing machine of the present invention.

[0032] Figure 11 It is a schematic diagram of the power transmission structure of the entire rice transplanter of the present invention.

[0033] Figure 12 The present invention is a schematic diagram of the disassembled structure of the rotary cutting device in the rice seedling throwing machine.

[0034] Legend: DETAILED DESCRIPTION

[0035] The invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1-12As shown, an embodiment of a rice pot blanket seedling intermittent cutting and throwing machine of the present invention includes a frame B and a first-level seedling feeding device C, a strip-cutting seedling feeding device, a rotary cutting device F and a universal device G which are arranged on the frame B and arranged in sequence along the conveying direction of the pot blanket seedlings A. The strip-cutting seedling feeding device includes a second-level seedling feeding device D and a strip-cutting device E located therebelow. The first-level seedling feeding device C and the second-level seedling feeding device D are connected by a seedling feeding power transmission chain mechanism to realize synchronous seedling feeding. The first-level seedling feeding device C is used to transport the pot blanket seedlings A to the second-level seedling feeding device D to be cut into strips by the strip-cutting device E. The second-level seedling feeding device D is used to transport the strips to the rotary cutting device F to be cut into block pot seedlings. The strip cutting device E includes a group of disc cutting knife shaft groups, a cutting knife motor E6 for driving the disc cutting knife shaft group to rotate, and two groups of cam lifting mechanisms arranged at both ends of the disc cutting knife shaft group for driving it to rise and fall. The disc cutting knife shaft group includes a horizontally arranged cutting knife shaft E1 (preferably a hexagonal shaft) and a disc cutting knife E2 mounted side by side on the cutting knife shaft E1. The disc cutting knife E2 is connected and fixed to the cutting knife shaft E1 through a disc cutting knife mounting part E3. A distance consistent with the width of the sapling is set between adjacent disc cutting knives E2. The rotation direction of the disc cutting knife E2 is the same as the movement direction of the pot-shaped blanket seedling A. The cam lifting mechanism includes a cam E7 and a lifting assembly driven by the cam E7 to be lifted and lowered. The two ends of the cutter shaft E1 are respectively connected to a lifting assembly. The cutter motor E6 is installed on the lifting assembly. The cam E7 is installed on the frame B through the cam drive shaft E12. The power input end of the cam drive shaft E12 is transmission-connected to the power output end of the rotary cutting device F through a cam drive chain transmission mechanism. When the rotary cutting device F performs the cutting operation, its power is transmitted to the cam E7 to cause it to rotate synchronously. The lifting assembly then drives the cutter shaft E1 and the disc cutter E2 to lift and lower to perform the stripping operation, realizing the linkage of the cutting and stripping operations. The structure of the present invention is simple. Through the synchronous linkage of the two-stage seedling feeding and the coordinated linkage of strip cutting and block cutting, an organic whole is formed. It can ensure the accuracy of seedling feeding, strip cutting and block cutting, and has high cutting efficiency. Moreover, when the seedling feeding device is feeding the seedlings, the disc cutter group in the strip cutting device can be hidden under the frame by lifting and lowering, which can prevent the strip cutting device from affecting the accuracy of seedling feeding during the seedling feeding operation.

[0037] In this embodiment, the universal device G comprises a chain box G1, a chain box G2, a bearing block G3, and connecting bolts G4. The frame B is equipped with three frames B4 spaced side by side and extending in the seedling transport direction, as well as a seedling delivery and loading plate B3 and a seedling cutting and loading plate B6 located at the bottom of the frames B4. Two conveyor troughs are defined between the frames B4, the seedling delivery and loading plates B3, and the seedling cutting and loading plates B6. Within each conveyor trough, a blanket seedling delivery trough and a sapling delivery trough are provided, in order of delivery sequence. The primary seedling delivery device C is located below the blanket seedling delivery trough, while the secondary seedling delivery device D and the sapling cutting device E are located below the sapling delivery trough. The frames B4 are fixedly connected at the bottom of the initial seedling delivery end by a transversely arranged frame connecting plate B1. On the outer sides of the two outermost frames B4 corresponding to the sapling cutting device E, downwardly extending and parallel mounting plates C6 are attached via connecting bolts G4. The lower ends of the two mounting plates C6 are connected by a connecting rod to form a single structure. The first chain box G1 and the second chain box G2 are respectively mounted on the frames B4 on both sides through connecting bolts G4.

[0038] In this embodiment, the seedling delivery board B3 is mounted on two seedling loading connecting plates B2 located below it via connecting bolts G4. The seedling loading connecting plates B2 are parallel to the frame connecting plate B1 and connected to the bottom of the frame B4 at both ends via seedling loading plate mounting members B5. The two sides of the cutting seedling loading plate B6 are connected to the bottom of the frame B4. The upper surface of the cutting seedling loading plate B6 is slightly lower than the upper surface of the seedling delivery board B3. The side close to the seedling delivery board B3 is equipped with trapezoidal teeth, and the side away from the seedling delivery board B3 is flush with the end of the frame B4. The cutting seedling loading plate B6 is provided with cutting knife notches B61 arranged side by side and extending longitudinally. The cutting knife notches B61 correspond to the position and number of the disc cutting knives E2. When the disc cutting knife E2 is in operation, the cutting knife E2 cuts the strips through the cutting knife notches B61.

[0039] In this embodiment, both lifting assemblies include two sets of guide shafts E4, two sets of guide tubes E10, rollers E8 and cutter shaft mounting plates E9. The two sets of guide shafts E4 are arranged vertically and the upper and lower ends are mounted on the mounting seats of the mounting plate C6. The two sets of guide tubes E10 are movably mounted on one guide shaft E4 respectively. The cutter shaft mounting plate E9 is fixedly connected to the two sets of guide tubes E10. The two ends of the cutter shaft E1 pass through the vertical strip holes provided on the mounting plate C6 and are connected to the cutter shaft mounting plate E9 through the bearing seat G3. The roller E8 is mounted on the cutter shaft mounting plate E9 and contacts the top of the cam E7. The cutter motor E6 is mounted on the cutter motor mounting plate E5. The cutter motor mounting plate E5 is mounted on the cutter shaft mounting plate E9 through the connecting bolt G4. The cam drive shaft E12 is connected between the two mounting plates C6 through the bearing seat G3. When the cam E7 rotates, the roller E8 rises and falls, driving the cutter shaft mounting plate E9 to move up and down along the guide shaft E4.

[0040] In this embodiment, a cutting support plate E11 is installed on the cutter shaft mounting plate E9. The cutting support plate E11 is in the shape of a horizontally placed U-shaped plate. The two side plates of the U-shaped plate are respectively connected to the cutter shaft mounting plate E9 by connecting bolts G4. The bottom plate of the U-shaped plate is located on the side close to the rotating cutting device F. When the cutter shaft mounting plate E9 moves up and down along the guide shaft E4, the cutting support plate E11 moves up and down synchronously with the cutter shaft mounting plate E9, supporting the slender strips after the cutting operation, and cooperating with the rotating cutting device F to perform the cutting operation.

[0041] In this embodiment, the first-level seedling delivery device C includes a first-level seedling delivery active shaft C11 (preferably a hexagonal shaft) and a first-level seedling delivery driven shaft C12 parallel to the cutter shaft E1. The ends of the first-level seedling delivery active shaft C11 and the first-level seedling delivery driven shaft C12 are mounted on the bottom of the two outermost frames B4 through bearing seats G3, and the two are connected by a first-level conveyor belt transmission assembly. A seedling pushing plate C3 for pushing the pot seedlings is also provided above the first-level conveyor belt transmission assembly. The seedling pushing plate C3 is parallel to the first-level seedling delivery active shaft C11. In this embodiment, there are preferably three groups of seedling pushing plates C3, and the spacing between two adjacent groups of seedling pushing plates C3 is appropriate to the length of the blanket seedlings to be transported. The top of the seedling pushing plate C3 is provided with serrations, which cooperate with the trapezoidal teeth provided at one end of the seedling delivery and loading plate B3.

[0042] In this embodiment, the primary conveyor belt transmission assembly includes a primary seedling delivery driving wheel C5 mounted in the middle of the primary seedling delivery driving shaft C11, a primary seedling delivery driven wheel C1 mounted in the middle of the primary seedling delivery driven shaft C12, and a primary seedling delivery conveyor belt C2 that is transmission-connected to the primary seedling delivery driving wheel C5 and the primary seedling delivery driven wheel C1. A seedling delivery loading plate B3 defines a first mounting notch, through which the primary seedling delivery conveyor belt C2 is inserted, with its upper surface positioned above the seedling delivery loading plate B3. Both ends of the first-stage seedling delivery driving shaft C11 are equipped with a first-stage seedling delivery driving sprocket C13, and both ends of the first-stage seedling delivery driven shaft C12 are equipped with a first-stage seedling delivery driven sprocket C14. The first-stage seedling delivery driving sprocket C13 and the first-stage seedling delivery driven sprocket C14 are both located on the inner side of the frame B4. The first-stage seedling delivery driving sprocket C13 and the first-stage seedling delivery driven sprocket C14 on the corresponding side are connected by the first-stage seedling delivery chain C4. The two ends of the seedling pushing plate C3 are respectively connected to the first-stage seedling delivery chain C4 on the corresponding side and are located above the first-stage seedling delivery conveyor belt C2 and move synchronously with it. The first-stage seedling delivery conveyor belt C2 moves forward once for each section of the first-stage seedling delivery chain C4. The cooperation between the seedling pushing plate and the first-stage seedling delivery conveyor belt achieves precise seedling delivery.

[0043] In this embodiment, the secondary seedling delivery device D includes a secondary seedling delivery drive shaft D2 (preferably a hexagonal shaft) and a secondary seedling delivery driven shaft D6, which are mounted on the mounting plate C6 via a bearing seat G3. The secondary seedling delivery drive shaft D2 and the secondary seedling delivery driven shaft D6 are connected by a transmission mechanism of N sets of spaced-apart secondary conveyor belt assemblies, each spaced one-to-one with the disc cutter E2. The secondary conveyor belt assembly includes a secondary seedling delivery drive wheel D3 mounted on the secondary seedling delivery drive shaft D2, a secondary seedling delivery driven wheel D7 mounted on the secondary seedling delivery driven shaft D6, and a secondary seedling delivery conveyor belt D4, which is transmission-connected to the secondary seedling delivery drive wheel D3 and the secondary seedling delivery driven wheel D7. The seedling cutting plate B6 also has a second mounting notch, through which the secondary seedling delivery conveyor belt D4 is inserted. A cutting blade notch B61 is located between two adjacent sets of secondary seedling delivery conveyor belts D4, through which the disc cutter E2 cuts the seedlings into strips.

[0044] In this embodiment, the secondary seedling feeding active shaft D2 is arranged adjacent to the primary seedling feeding active shaft C11 and is connected to it by a seedling feeding power transmission chain mechanism. The seedling feeding power transmission chain mechanism includes a seedling feeding motor C7 (preferably a servo motor) mounted on a mounting plate C6 via connecting bolts G4. The output shaft of the seedling feeding motor C7 is parallel to and located below the primary seedling feeding active shaft C11. The end of the output shaft passes through the mounting plate C6 and is equipped with a seedling feeding sprocket C8. The power input end of the primary seedling feeding active shaft C11 is equipped with a primary seedling feeding sprocket C10, and the power input end of the secondary seedling feeding active shaft D2 is equipped with a secondary seedling feeding sprocket D1. The seedling feeding sprocket C8, the primary seedling feeding sprocket C10, and the secondary seedling feeding sprocket D1 are all located outside the frame B4 on the side away from the cutting blade motor E6, arranged in a triangle, and connected to each other by a seedling feeding drive chain C9, which drives the secondary seedling feeding active shaft D2 and the primary seedling feeding active shaft C11 to operate synchronously and in the same direction. The two-stage conveying method of seedling blanket conveying and seedling strip conveying is adopted, which can not only ensure the smooth connection of the front and rear seedling trays, but also make the seedling strip conveying smoother and more accurate.

[0045] In this embodiment, the secondary seedling delivery device D also includes a tensioning shaft D5 parallel to the secondary seedling delivery active shaft D2. The tensioning shaft D5 is installed on the mounting plate C6 through the bearing seat G3, and is located below between the secondary seedling delivery active shaft D2 and the secondary seedling delivery driven shaft D6 to tension the secondary seedling delivery conveyor belt D4 outward.

[0046] In this embodiment, the rotary dicing device F comprises an intermediate shaft F1 parallel to the cutter axis E1, a drum-type dicing mechanism coaxially mounted on the intermediate shaft F1, and a cutter adjustment mechanism. The intermediate shaft F1 is rotatably mounted on the frame B4 via bearings at both ends. One end is connected to the dicing power transmission mechanism, and the other end, serving as the power output of the rotary dicing device F, is connected to the cam drive chain transmission mechanism. The drum-type dicing mechanism comprises two sets of triangular side brackets F5 (preferably three-pronged spoke-type brackets) and three sets of dicing blade shaft assemblies. The two sets of triangular side brackets F5 are coaxially mounted at both ends of the intermediate shaft F1 and located inside the frame B4. A set of dicing blade shaft assemblies is mounted between the corresponding top ends of the two sets of triangular side brackets F5. The three sets of dicing blade shaft assemblies are parallel to the intermediate shaft F1 and uniformly arranged in a concentric circle around its circumference. Adjacent sets of dicing blade shaft assemblies are circumferentially spaced 120 degrees apart. When the intermediate shaft F1 rotates, the triangular side bracket F5 drives the cutting knife shaft assembly to rotate synchronously, thereby realizing the drum-type cutting mechanism to cut the slender strips into pieces.

[0047] In this embodiment, the dicing power transmission mechanism includes a dicing motor F18 mounted on the frame B4 via connecting bolts G4, a dicing sprocket F17 mounted on the output shaft of dicing motor F18, a dicing device driven sprocket F2 mounted on the power input end of intermediate shaft F1, and a dicing chain F16 drivingly connected to dicing device driven sprocket F2 and dicing sprocket F17. The dicing chain F16 transmits power from the dicing motor F18 to the dicing device driven sprocket F2, driving the intermediate shaft F1 to rotate and realize the rotary dicing motion of the rotary dicing blade mechanism. The power output end of the intermediate shaft F1 is in driving connection with the cam drive chain transmission mechanism to transmit power. The dicing power transmission mechanism is located within the first chain box G1.

[0048] In this embodiment, the cam-driven chain transmission mechanism includes a cam-driven sprocket E13, a cam-driven driving sprocket F12, and a cam-driven chain E14. Cam-driven driving sprocket F12 is mounted on the power output end of intermediate shaft F1, while cam-driven sprocket E13 is mounted on the power input end of cam-driven shaft E12. Cam-driven driving sprocket F12 transmits power to cam-driven sprocket E13 via cam-driven chain E14, driving cam E7 to rotate, thereby achieving the lifting and cutting motion of disc cutter E2. The cam-driven chain transmission mechanism is located within chain box G2.

[0049] In this embodiment, the dicing blade shaft assembly includes a hollow dicing blade mounting shaft F8 and a dicing blade support shaft F15. The ends of the dicing blade support shaft F15 are mounted on triangular side brackets F5 via bearings. The dicing blade mounting shaft F8 is sleeved onto the dicing blade support shaft F15. Linear bearings F14 are installed between the inner ends of the dicing blade mounting shaft F8 and the outer wall of the dicing blade support shaft F15, and are secured by retaining springs F13. A row of dicing blades F9 corresponding to the number of rice seedlings is axially arranged on the outer side of the dicing blade mounting shaft F8. The cutting planes of the dicing blades F9 are perpendicular to the cutting surface of the blanket seedlings (i.e., the plane on which the blanket seedlings of the rice pot are located). The distance between adjacent dicing blades F9 on the same dicing blade mounting shaft F8 corresponds to the width of the rice seedlings. The dicing blades F9 on adjacent dicing blade mounting shafts F8 are axially staggered by the distance of one rice seedling. In this embodiment, the width of the rice seedlings is preferably the width of three rice seedlings, meaning that every third rice seedling is cut into strips.

[0050] In this embodiment, the blade adjustment mechanism is connected to one end of the dicing blade support shaft F15 and is used to ensure that the cutting plane of the dicing blade F9 is always perpendicular to the cutting surface of the blanket seedlings when the intermediate shaft F1 rotates. The blade adjustment mechanism includes an eccentric wheel F3, a triangular spoke F4 (preferably an equilateral triangular spoke), and a connecting rod F6. One side of the eccentric wheel F3 is mounted to the frame B4 via a connecting bolt G4. The other side is provided with a protruding concentric ring and is mounted via a bearing within the center hole of the triangular spoke F4. The eccentric wheel F3 has an eccentric through-hole within the concentric ring. The power input end of the intermediate shaft F1 passes through the eccentric through-hole and is rotatably connected to the frame B4. The centerline of the eccentric wheel F3 is parallel to and directly below the axis of the intermediate shaft F1. The triangular spoke F4 is located between the eccentric F3 and the triangular side bracket F5. Each vertex of the triangular spoke F4 is connected to each cutting blade support shaft F15 via a connecting rod F6. One end of the connecting rod F6 has a through hole fixedly connected to the end of the cutting blade support shaft F15. The other end has a connecting rod shaft parallel to the cutting blade support shaft F15. The connecting rod shaft is hinged to the hinge holes in the vertex of the triangular spoke F4. The axis of the connecting rod shaft and the cutting blade support shaft F15 lies in the same vertical plane and is parallel to the cutting blade plane. When the cutting blade support shaft F15 rotates about the intermediate axis F1, the connecting rod F6 drives the triangular spoke F4 to rotate synchronously about the center of the eccentric F3, preventing the cutting blade support shaft F15 from rotating. The cutting blade plane of the cutting blade F9 always remains perpendicular to the cutting surface of the blanket seedling.

[0051] In this embodiment, the rotary cutting device F also includes a transverse adjustment component for driving the cutting knife F9 to move laterally on the cutting surface of the blanket seedling. The transverse adjustment component includes a transverse shaft F10, a transverse groove F151, a compression spring F7 and a transverse trigger plate F11. The transverse groove F151 is axially arranged on the side wall of the cutting knife support shaft F15 away from the triangular spoke F4. One end of the transverse shaft F10 is coaxially mounted on the inner cavity of the cutting knife support shaft F15 and is connected to the cutting knife mounting shaft F8 through a connecting bolt G4 passing through the transverse groove F151 to form an integral structure. The other end of the transverse shaft F10 is located outside the cutting knife support shaft F15 and is in the shape of a ball head. The transverse trigger plate F11 is vertically mounted close to the transverse shaft. The traverse trigger plate F11 is raised against the inner middle part of the traverse shaft F10 and gradually concave at both ends. The compression spring F7 is sleeved on one end of the traverse support shaft F15 close to the triangular spoke F4 and abuts against the traverse mounting shaft F8 and the triangular side bracket F5. When the intermediate shaft F1 rotates to the predetermined cutting position, the ball head end of the traverse shaft F10 contacts the inner side of the traverse trigger plate F11 and is pushed to move laterally along the traverse groove F151 and drive the traverse of the traverse mounting shaft F8 to achieve cutting. The compression spring F7 is used to reset the traverse mounting shaft F8 after the traverse shaft F10 leaves the traverse trigger plate F11. The lateral adjustment component allows the cutting knife to be inserted from the middle of two seedlings to the inner side of the seedlings. While the cutting knife cuts downward perpendicular to the cutting surface, it drives the cutting knife to move laterally so that the cutting knife moves to the inner and rear sides of the seedlings, and then cuts the pot-shaped blanket seedlings, so that the pot-shaped blanket seedlings are cut into independent units. The lateral adjustment function of the lateral adjustment component can prevent the cutting knife from cutting the seedlings and improve the quality of transplanting.

[0052] In this embodiment, the cutting blade F9 is L-shaped and includes a vertical handle and a horizontal straight blade. The handle is mounted perpendicularly to the cutting blade mounting shaft F8. The straight blade is located in a vertical plane parallel to the axis of the cutting blade mounting shaft F8 and extends toward the end provided with a compression spring F7. The bottom and end of the straight blade are both provided with a cutting edge. The cutting blades F9 on each cutting blade mounting shaft F8 are arranged in the order of cutting along the rotation direction of the intermediate shaft F1, namely, cutting blade No. 1 F91, cutting blade No. 2 F92, and cutting blade No. 3 F93. Cutting blade No. 3 F93 corresponds to the third seedling in the pot of the slender, cutting blade No. 2 F92 corresponds to the second seedling in the middle of the slender, and cutting blade No. 1 F91 corresponds to the first seedling in the pot of the slender. After the slender is cut, the vertical handle of the cutting blade F9 pushes it into the subsequent seedling guiding and throwing process during the lateral movement.

[0053] Working principle: 1) Principle of precise delivery The seedling delivery motor C7 is preferably a servo motor, which can accurately realize the rotational power output according to the control signal to ensure the accuracy of seedling delivery. The seedling delivery motor C7 transmits power to the secondary seedling delivery active shaft D2 and the primary seedling delivery active shaft C11 through the seedling delivery drive chain C9, realizing the synchronization of movement of the secondary seedling delivery active shaft D2 and the primary seedling delivery active shaft C11; the secondary seedling delivery active shaft D2 transmits power to the secondary seedling delivery driven shaft D6 through the secondary seedling delivery conveyor belt D4, realizing the delivery of the seedlings after cutting.

[0054] The first-level seedling feeding active shaft C11 transmits power to the first-level seedling feeding driven shaft C1 through the first-level seedling feeding conveyor belt C2, and a first-level seedling feeding active sprocket C13 is installed on the first-level seedling feeding active shaft C11, and a first-level seedling feeding driven sprocket C14 is installed on the first-level seedling feeding driven shaft C1. The first-level seedling feeding active sprocket C13 and the first-level seedling feeding driven sprocket C14 are connected by a first-level seedling feeding chain C4. A seedling pushing plate C3 is installed between the two groups of first-level seedling feeding chains C4. The seedling pushing plate C3 cooperates with the first-level seedling feeding conveyor belt C2 to move. The first-level seedling feeding chain C4 moves one section to perform a seedling feeding operation, thereby ensuring the accuracy of the seedling feeding operation.

[0055] 2) Principle of strip cutting motion The cutting knife motor E6 is directly connected to the cutting knife shaft E1 to realize the rotation of the cutting knife E2. The cutting knife shaft E1 is connected to the lifting component of the cam lifting mechanism to realize the lifting of the cutting knife E2. Through the rotation and lifting of the cutting knife E2, every three seedlings in the pot are cut into strips.

[0056] 3) Principle of cutting motion The cutting motor F18 drives the intermediate shaft F1 of the cutting device to rotate, and the intermediate shaft F1 of the cutting device drives the triangular bracket F5 to rotate, and the triangular bracket F5 drives the cutting knife installation shaft F8 to rotate, and then drives the No. 1 cutting knife F91, No. 2 cutting knife F92, and No. 3 cutting knife F93 to move. During the cutting operation, along the rotation direction of the intermediate shaft F1 and in the order of cutting, the No. 1 cutting knife F91 first cuts off the seedlings that have been cut into strips. After completing the cutting operation of the first seedling, the No. 2 cutting knife F92 moves. After completing the cutting operation of the second seedling, the No. 3 cutting knife F93 moves to complete the cutting operation of the third seedling. Figure 10As shown, the first, second, and third cutting blades F91, F92, and F93 form a group of three. One set of cutting blade shafts can be equipped with multiple sets of cutting blades. The order of the cutting blades, from right to left, is: first cutting blade F91, second cutting blade F92, and third cutting blade F93. The disc cutter E2 first cuts the right side of the first seedling's blanket. The handle of the first cutting blade F91 cuts the blanket connecting the first and second seedlings. The straight blade of the first cutting blade F91 cuts the back of the first seedling. When the first cutting blade F91 completes its cutting, all the blankets connected to the first seedling are severed, and the first seedling is divided into independent units ready for transplanting. The cutting operation of cutting blade F91 cuts the mat connecting the first and second seedlings. Therefore, cutting blade F92 cuts the mat connecting the second and third seedlings, as well as the mat behind the second seedling, and the second seedling is cut into an independent unit ready for transplanting. Since each seedling forms a group of three, when cutting blade F93 cuts, the mat connecting the third seedling to the second seedling has already been cut by cutting blade F92, and the third seedling and the first seedling of the next group have already been cut by disc cutting blade E2. Therefore, when cutting blade F93 cuts, its straight blade cuts the mat behind the third seedling, and the third seedling is cut into an independent unit ready for transplanting. The coordinated operation of the L-shaped cutting knife F9 and the disc cutting knife E2 and the sequential cutting operation of the L-shaped cutting knife F9 enable the L-shaped cutting knife F9 with only two-side cutting edges to achieve three-sided cutting, thereby realizing the cutting operation of the pot-shaped blanket seedlings.

[0057] 4) Principle of linkage operation of cutting into blocks and strips When the cutting motor F18 drives the intermediate shaft F1 of the cutting device to rotate, the cam drives the active sprocket F12 to drive the cam drive shaft E12 to move through the cam drive chain E14. The cam E7 installed on the cam drive shaft E12 lifts the cutter shaft E1 through the gap, and the disc cutter E2 performs the strip cutting operation. At the same time, the cutting support plate E11 rises and cooperates with the cutting knife F9 to complete the cutting action. After completing a cutting operation cycle, the cam E7 disengages from the roller E8, the cutter shaft E1 returns to its original position, the disc cutter E2 descends and hides under the cutting seedling loading plate B6, and the first-level seedling delivery device C performs the next round of seedling delivery operation.

[0058] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A rice seedling planting machine for intermittently cutting and planting rice seedlings in a pot, comprising a frame (B) and a first-stage seedling delivery device (C), a strip-cutting seedling delivery device, and a rotary cutting device (F) arranged on the frame (B) and arranged in sequence along the conveying direction of the pot-shaped blanket seedlings (A), the strip-cutting seedling delivery device comprising a second-stage seedling delivery device (D) and a strip-cutting device (E) located therebelow, the first-stage seedling delivery device (C) and the second-stage seedling delivery device (D) being connected via a seedling delivery power transmission chain mechanism to achieve synchronous seedling delivery, the first-stage seedling delivery device (C) being used to deliver the pot-shaped blanket seedlings (A) to the second-stage seedling delivery device (D) to be cut into strips by the strip-cutting device (E), and the second-stage seedling delivery device (D) being used to deliver the strips to the rotary cutting device (F) to be cut into block-shaped pot seedlings, characterized in that: The strip cutting device (E) comprises a set of disc cutting shafts, a cutting motor (E6) for driving the disc cutting shafts to rotate, and two sets of cam lifting mechanisms arranged at both ends of the disc cutting shafts for driving the disc cutting shafts to move upward and downward. The disc cutting shafts comprise a horizontally arranged cutting shaft (E1) and disc cutting knives (E2) arranged side by side on the cutting shaft (E1). A distance corresponding to the width of the strip is provided between adjacent disc cutting knives (E2). The direction of rotation of the disc cutting knives (E2) is the same as the direction of movement of the pot-shaped blanket seedlings (A). The cam lifting mechanism includes a cam (E7) and a lifting assembly driven to lift by the cam (E7); both ends of the cutter shaft (E1) are respectively connected to a lifting assembly; the cutter motor (E6) is mounted on the lifting assembly; the cam (E7) is mounted on the frame (B) via a cam drive shaft (E12); the power input end of the cam drive shaft (E12) is connected to the power output end of the rotary cutting device (F) via a cam drive chain transmission mechanism; while the rotary cutting device (F) performs a cutting operation, its power is transmitted to the cam (E7) to cause it to rotate synchronously; the lifting assembly then drives the cutter shaft (E1) and the disc cutter (E2) to lift and lower to perform a strip cutting operation, thereby realizing the linkage between the cutting and strip cutting operations.

2. The rice seedling cutting and throwing machine according to claim 1, characterized in that: The frame (B) includes two or more frames (B4) arranged side by side and extending along the conveying direction, and mounting plates (C6) extending downward and parallel to each other are provided on the outer sides of the frames (B4) corresponding to the strip cutting devices (E); The two sets of lifting components each include two sets of guide shafts (E4), two sets of guide tubes (E10), rollers (E8) and a cutter shaft mounting plate (E9). The two sets of guide shafts (E4) are arranged vertically and the upper and lower ends are both mounted on the mounting seats of the mounting plate (C6). The two sets of guide tubes (E10) are movably mounted on one guide shaft (E4) respectively. The cutter shaft mounting plate (E9) is fixedly connected to the two sets of guide tubes (E10). The two ends of the cutter shaft (E1) are passed through The vertical strip hole provided on the mounting plate (C6) is rotatably connected to the cutter shaft mounting plate (E9), the roller (E8) is mounted on the cutter shaft mounting plate (E9) and contacts the top of the cam (E7), and the cutter motor (E6) is mounted on the cutter shaft mounting plate (E9) through the cutter motor mounting plate (E5). When the cam (E7) rotates, the roller (E8) rises and falls accordingly, driving the cutter shaft mounting plate (E9) to move up and down along the guide shaft (E4).

3. The rice seedling cutting and throwing machine according to claim 2, characterized in that: The cutter shaft mounting plate (E9) is further provided with a cutting support plate (E11) for cooperating with the rotary cutting device (F) to perform a cutting operation. The cutting support plate (E11) is a horizontally placed U-shaped plate. The two side plates of the U-shaped plate are respectively connected to the cutter shaft mounting plate (E9) via connecting bolts (G4) and are located on a side close to the rotary cutting device (F). When the cutter shaft mounting plate (E9) moves up and down along the guide shaft (E4), the cutting support plate (E11) rises and falls synchronously with the cutter shaft mounting plate (E9) to support the slivers after the slicing operation.

4. The rice seedling cutting and throwing machine according to claim 2, characterized in that: The first-level seedling delivery device (C) comprises a first-level seedling delivery active shaft (C11) and a first-level seedling delivery driven shaft (C12) rotatably mounted at the bottom of the two frames (B4) and parallel to the cutter shaft (E1), wherein the first-level seedling delivery active shaft (C11) and the first-level seedling delivery driven shaft (C12) are connected by a first-level conveyor belt transmission assembly; a seedling pushing plate (C3) for pushing the potted seedlings is further provided above the first-level conveyor belt transmission assembly, wherein the seedling pushing plate (C3) is parallel to the first-level seedling delivery active shaft (C11); The primary conveyor belt transmission assembly comprises a primary seedling delivery driving wheel (C5) mounted in the middle of a primary seedling delivery driving shaft (C11), a primary seedling delivery driven wheel (C1) mounted in the middle of a primary seedling delivery driven shaft (C12), and a primary seedling delivery conveyor belt (C2) transmission-connected to the primary seedling delivery driving wheel (C5) and the primary seedling delivery driven wheel (C1); Both ends of the first-stage seedling delivery driving shaft (C11) are equipped with a first-stage seedling delivery driving sprocket (C13), and both ends of the first-stage seedling delivery driven shaft (C12) are equipped with a first-stage seedling delivery driven sprocket (C14). The first-stage seedling delivery driving sprocket (C13) and the first-stage seedling delivery driven sprocket (C14) are both located on the inner side of the frame (B4). The first-stage seedling delivery driving sprocket (C13) and the first-stage seedling delivery driven sprocket (C14) on the corresponding side are connected by transmission via the first-stage seedling delivery chain (C4). Both ends of the seedling pushing plate (C3) are respectively connected to the first-stage seedling delivery chain (C4) on the corresponding side and are located above the first-stage seedling delivery conveyor belt (C2) and move synchronously therewith. When the first-stage seedling delivery chain (C4) moves one section, the first-stage seedling delivery conveyor belt (C2) delivers seedlings forward once.

5. The rice seedling cutting and throwing machine for blanket-shaped rice seedlings in pots according to claim 4, characterized in that: The secondary seedling delivery device (D) comprises a secondary seedling delivery active shaft (D2) and a secondary seedling delivery driven shaft (D6) mounted on the mounting plate (C6), the secondary seedling delivery active shaft (D2) and the secondary seedling delivery driven shaft (D6) being transmission-connected via N groups of secondary conveyor belt assemblies arranged at intervals, the intervals corresponding one-to-one to the disc cutting blades (E2); The secondary conveyor belt assembly comprises a secondary seedling delivery driving wheel (D3) provided on a secondary seedling delivery driving shaft (D2), a secondary seedling delivery driven wheel (D7) provided on a secondary seedling delivery driven shaft (D6), and a secondary seedling delivery conveyor belt (D4) transmission-connected to the secondary seedling delivery driving wheel (D3) and the secondary seedling delivery driven wheel (D7); the secondary seedling delivery driving shaft (D2) is arranged adjacent to the primary seedling delivery driving shaft (C11); The secondary seedling delivery device (D) further comprises a tensioning shaft (D5) mounted on the mounting plate (C6) and parallel to the secondary seedling delivery active shaft (D2); the tensioning shaft (D5) is located below between the secondary seedling delivery active shaft (D2) and the secondary seedling delivery driven shaft (D6) to tension the secondary seedling delivery conveyor belt (D4) outward.

6. The rice seedling cutting and throwing machine for blanket-shaped rice seedlings in pots according to claim 5, characterized in that: The rotary cutting device (F) comprises an intermediate shaft (F1) parallel to the cutter shaft (E1), a roller-type cutting mechanism coaxially mounted on the intermediate shaft (F1), and a cutter adjustment mechanism. Both ends of the intermediate shaft (F1) are rotatably mounted on the frame (B4), one end of which is connected to the cutting power transmission mechanism, and the other end of which serves as the power output end of the rotary cutting device (F) and is connected to the cam drive chain transmission mechanism. The drum-type cutting mechanism comprises two sets of triangular side brackets (F5) and three sets of cutting blade shaft assemblies. The two sets of triangular side brackets (F5) are coaxially mounted at both ends of the intermediate shaft (F1) and are located inside the frame (B4). A set of the cutting blade shaft assembly is mounted between the corresponding top ends of the two sets of triangular side brackets (F5). The three sets of cutting blade shaft assemblies are all parallel to the intermediate shaft (F1) and are evenly arranged in a concentric circle around the circumference thereof. When the intermediate shaft (F1) rotates, the cutting blade shaft assemblies are driven to rotate synchronously through the triangular side brackets (F5). The cutting blade shaft assembly comprises a hollow cutting blade mounting shaft (F8) and a cutting blade support shaft (F15). The two ends of the cutting blade support shaft (F15) are respectively connected to the triangular side brackets (F5) through bearings. The cutting knife mounting shaft (F8) is sleeved on the cutting knife support shaft (F15), and linear bearings (F14) are installed between the two ends of the inner cavity of the cutting knife mounting shaft (F8) and the outer wall of the cutting knife support shaft (F15) and fixed by a retaining spring (F13). A row of cutting knives (F9) corresponding to the number of slender strips is axially provided on the outer side of the cutting knife mounting shaft (F8), and the cutting plane of the cutting knife (F9) is perpendicular to the cutting surface of the blanket seedling. The distance between adjacent cutting knives (F9) on the same cutting knife mounting shaft (F8) is consistent with the width of the slender strips. The cutting knives (F9) on adjacent cutting knife mounting shafts (F8) are staggered in sequence along the axial direction by the distance of one potted seedling. The width of the slender strips is consistent with the width of three potted seedlings. The cutter adjustment mechanism is connected to one end of the cutter support shaft (F15) and is used to ensure that the cutting plane of the cutter (F9) is always perpendicular to the cutting surface of the blanket seedling when the intermediate shaft (F1) rotates.

7. The rice seedling cutting and throwing machine according to claim 6, characterized in that: The cutter adjustment mechanism includes an eccentric wheel (F3), a triangular spoke plate (F4), and a connecting rod (F6); one side of the eccentric wheel (F3) is mounted on the frame (B4) via a connecting bolt (G4); the other side is provided with a protruding concentric ring and is mounted in the center hole of the triangular spoke plate (F4) via a bearing; an eccentric through hole is provided on the eccentric wheel (F3) in the concentric ring; the power input end of the intermediate shaft (F1) passes through the eccentric through hole and is rotatably connected to the frame (B4); the center line of the eccentric wheel (F3) is parallel to and directly below the axis of the intermediate shaft (F1); The triangular spoke (F4) is located between the eccentric wheel (F3) and the triangular side bracket (F5). Each vertex of the triangular spoke (F4) is connected to each cutting knife support shaft (F15) through the connecting rod (F6). One end of the connecting rod (F6) is provided with a through hole fixedly connected to the end of the cutting knife support shaft (F15), and the other end is provided with a connecting rod shaft parallel to the cutting knife support shaft (F15) and hinged to the vertex of the triangular spoke (F4). The axis of the connecting rod shaft and the cutting knife support shaft (F15) are located in the same vertical plane and are parallel to the cutting knife plane. When the cutting knife support shaft (F15) rotates around the intermediate axis (F1), the triangular spoke (F4) rotates synchronously around the center of the eccentric wheel (F3), so that the cutting knife support shaft (F15) does not rotate on its own, and the cutting knife plane of the cutting knife (F9) always remains perpendicular to the cutting surface of the blanket seedling.

8. The rice seedling cutting and throwing machine for blanket-shaped rice seedlings in pots according to claim 7, characterized in that: The rotary cutting device (F) also includes a transverse adjustment component for driving the cutting knife (F9) to move transversely on the cutting surface of the blanket seedling, and the transverse adjustment component includes a transverse shaft (F10), a transverse groove (F151), a compression spring (F7) and a transverse trigger plate (F11). The transverse groove (F151) is axially arranged on the side wall of the cutting knife support shaft (F15) away from the triangular spoke (F4). One end of the transverse shaft (F10) is coaxially mounted in the inner cavity of the cutting knife support shaft (F15) and is connected to the cutting knife mounting shaft (F8) through a connecting bolt (G4) passing through the transverse groove (F151) to form an integrated structure. The other end of the transverse shaft (F10) is located outside the cutting knife support shaft (F15) and is in the shape of a ball head. The transverse trigger plate (F11) is vertically mounted close to the transverse shaft (F15). 10) end and matches the motion trajectory of the cutting knife support shaft (F15), the transverse trigger plate (F11) is raised against the inner middle part of the transverse shaft (F10) and gradually concave towards both ends, the compression spring (F7) is sleeved on one end of the cutting knife support shaft (F15) close to the triangular spoke plate (F4) and abuts between the cutting knife mounting shaft (F8) and the triangular side bracket (F5), when the intermediate shaft (F1) rotates to the predetermined cutting position, the ball head end of the transverse shaft (F10) contacts the inner side of the transverse trigger plate (F11) and is pushed to move transversely along the transverse groove (F151) and drive the cutting knife (F9) to move transversely through the cutting knife mounting shaft (F8) to achieve cutting, and the compression spring (F7) is used to reset the cutting knife mounting shaft (F8) after the transverse shaft (F10) leaves the transverse trigger plate (F11).

9. The rice seedling cutting and throwing machine for blanket-shaped rice seedlings in pots according to claim 8, characterized in that: The cutting knife (F9) is L-shaped and includes a handle in a vertical section and a cutting plane in a horizontal section. The handle is vertically mounted on the cutting knife mounting shaft (F8). The cutting plane is located in a vertical plane parallel to the axial direction of the cutting knife mounting shaft (F8) and extends toward one end provided with a compression spring (F7). The bottom and end of the horizontal section are both provided with cutting edges. The cutting knives (F9) on each cutting knife mounting shaft (F8) are arranged in the order of cutting along the rotation direction of the intermediate shaft (F1), namely, a No. 1 cutting knife (F91), a No. 2 cutting knife (F92), and a No. 3 cutting knife (F93). The No. 3 cutting knife (F93) corresponds to the third potted seedling in the slender line, the No. 2 cutting knife (F92) corresponds to the second potted seedling in the middle of the slender line, and the No. 1 cutting knife (F91) corresponds to the first potted seedling in the slender line.

10. The rice seedling cutting and transplanting machine according to any one of claims 6 to 9, characterized in that: The cutting power transmission mechanism includes a cutting motor (F18) mounted on a frame (B4), a cutting sprocket (F17) mounted on an output shaft of the cutting motor (F18), a cutting device driven sprocket (F2) mounted on a power input end of an intermediate shaft (F1), and a cutting chain (F16) connected to the cutting device driven sprocket (F2) and the cutting sprocket (F17). The cutting chain (F16) transmits power from the cutting motor (F18) to the cutting device driven sprocket (F2), thereby driving the intermediate shaft (F1) to rotate, thereby realizing the rotary cutting motion of the rotary cutting blade mechanism. The cam-driven chain transmission mechanism comprises a cam-driven sprocket (E13), a cam-driven active sprocket (F12), and a cam-driven chain (E14). The cam-driven active sprocket (F12) is mounted on the power output end of the intermediate shaft (F1), and the cam-driven sprocket (E13) is mounted on the power input end of the cam-driven shaft (E12). The cam-driven active sprocket (F12) transmits power to the cam-driven sprocket (E13) via the cam-driven chain (E14), thereby driving the cam (E7) to rotate, thereby realizing the lifting and strip-cutting motion of the disc cutter (E2).

11. The rice seedling planting blanket-shaped intermittent cutting and transplanting machine according to any one of claims 5 to 9, characterized in that: The seedling delivery power transmission chain mechanism comprises a seedling delivery motor (C7) mounted on a mounting plate (C6); an output shaft of the seedling delivery motor (C7) is parallel to and located below the first-level seedling delivery active shaft (C11); an end of the output shaft passes through the mounting plate (C6) and is equipped with a seedling delivery sprocket (C8); a power input end of the first-level seedling delivery active shaft (C11) is equipped with a first-level seedling delivery sprocket (C10); and a power input end of the second-level seedling delivery active shaft (D2) is equipped with a second-level seedling delivery sprocket (D1); the seedling delivery sprocket (C8), the first-level seedling delivery sprocket (C10), and the second-level seedling delivery sprocket (D1) are arranged in a triangle and are connected by a seedling delivery drive chain (C9), thereby driving the second-level seedling delivery active shaft (D2) and the first-level seedling delivery active shaft (C11) to operate synchronously and in the same direction.

12. The rice seedling planting blanket-shaped intermittent cutting and transplanting machine according to any one of claims 6 to 9, characterized in that: The frame (B) further comprises a seedling delivery and loading plate (B3) and a seedling cutting and loading plate (B6) provided at the bottom of the frame (B4); a blanket-shaped seedling conveying trough and a seedling strip conveying trough are respectively formed between the frame (B4) and the seedling delivery and loading plate (B3) and the seedling cutting and loading plate (B6); the first-level seedling delivery device (C) is provided below the blanket-shaped seedling conveying trough; the seedling delivery and loading plate (B3) is provided with a first installation notch for passing the first-level seedling delivery conveying belt (C2); The secondary seedling delivery device (D) and the strip cutting device (E) are arranged below the seedling delivery trough. The seedling cutting plate (B6) is provided with a cutting knife notch (B61) and a second installation notch for passing the secondary seedling delivery conveyor belt (D4). The cutting knife notch (B61) is located between two adjacent groups of secondary seedling delivery conveyor belts (D4). When the disc cutting knife (E2) is in operation, it performs strip cutting through the cutting knife notch (B61). The ends of the frame (B4) are connected via a frame connecting plate (B1); the seedling delivery and loading plate (B3) is mounted on two seedling loading connection plates (B2) located below via connecting bolts (G4); the two ends of the seedling loading connection plates (B2) are connected to the bottom of the frame (B4) via seedling loading plate mounting members (B5); and the two sides of the cutting and loading plate (B6) are connected to the bottom of the frame (B4).

13. The rice seedling blanket-shaped intermittent cutting and throwing machine according to claim 12, characterized in that: The seedling pushing plates (C3) are provided with two pieces, the spacing between the two seedling pushing plates (C3) is smaller than the length of the seedling delivery and loading plates (B3), the tops of the seedling pushing plates (C3) are provided with saw teeth, and the end of the cutting and loading plates (B6) close to the seedling delivery and loading plates (B3) is provided with trapezoidal teeth that match the saw teeth.

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