A rice strip-shaped degradable seedling raising tray and a rice cutting and throwing machine

Abstract

The present invention relates to a rice strip-shaped degradable seedling raising tray and a block-cutting and seedling throwing machine. The seedling raising tray includes a plurality of pot holes arranged in a single row. The pot holes are in the shape of a regular quadrangular pyramid with a large top and a small bottom. A circle of upper side walls are arranged around the top of the pot holes. The cross-sections of the upper side walls on each side are rectangular. Adjacent pot holes are connected as a whole through the upper side walls. The block-cutting and seedling throwing machine includes a walking chassis and a transverse seedling feeding mechanism, a longitudinal seedling feeding mechanism, a transverse block cutting mechanism and a seedling dropping guide mechanism installed thereon through a frame. A plurality of rectangular frames are arranged side by side in the transverse direction on the top of the frame, and each rectangular frame corresponds to a block-cutting and seedling throwing unit. The seedling raising tray of the present invention is convenient for transportation and not easy to deform. When the machine throws the seedlings, only transverse block cutting is required, which can reduce the damage to the pot shape and the damage to the root system and improve the integrity of the pot-shaped seedling blocks. The seedling throwing machine only needs a first-level transverse cutting mechanism, and has the advantages of simple structure, high reliability, high seedling throwing efficiency, good uprightness of the seedlings after throwing, and stable spacing between plants and rows.

Description

Technical Field

[0001] The invention relates to the field of agricultural machinery, and in particular to a rice strip-shaped degradable seedling raising tray and a rice cutting and throwing machine. Background Art

[0002] Mechanized transplanting of rice is a high-yield and stable planting method. First, the seedlings are cultivated in the seedling tray, and then the seedlings are taken out of the seedling tray and transplanted to the field by machine. Rice machine transplanting and machine throwing are the two main methods of mechanized transplanting of rice. The seedlings used in rice machine transplanting are blanket seedlings, and the seedling tray used is a plastic ordinary flat tray. The roots are intertwined with each other. The seedling claws will cause serious tearing damage to the roots of the seedlings when picking the seedlings. In addition, the planting depth is large, which makes the transplanted seedlings have a 5-7d green period, resulting in a prolonged rice growth cycle. Rice machine throwing is a high-yield and high-quality cultivation agronomic technology with the characteristics of light planting injury, shallow planting depth, fast greening, early tillering, and stable and high yield. The machine throwing uses seedlings as pot seedlings. The pot seedlings grow separately in the pot holes of the plastic pot seedling tray. They need to be taken out of the pot holes of the seedling tray by the seedling removal mechanism before they can be thrown. The seedling retrieval mechanism is mainly divided into the ejection type and the pulling type. The ejection type seedling retrieval uses the ejector mechanism to push the seedlings out, and then they enter the seedling delivery mechanism. There are many seedling retrieval links, cumbersome mechanism, low reliability, high seedling cultivation requirements, and easy damage to the seedling root system and soil structure. The pulling type seedling retrieval uses a rotating mechanism to pull the seedlings out, and then the seedling delivery link is carried out. The rotating mechanism is complex, low reliability, and easy to damage the root and stem of the seedlings, which is not conducive to the later greening of the living plants.

[0003] The seedlings cultivated in the degradable seedling tray are also seedlings in pots. Each seedling hole is independent of each other. When transplanting, the seedling tray enters the mud together with the seedlings in the pots, which does not damage the root system of the seedlings and can be degraded to supply nutrients to the seedlings. It is an environmentally friendly product. The degradable seedling tray for seedlings in pots is generally composed of a pot hole, side walls and a tray body. The pot holes are distributed in the tray body with equal spacing in the longitudinal and transverse directions. Degradable seedling trays for seedlings in pots are generally used for machine transplanting. For example, the invention patent with patent number 202211125892.9, "A fully degradable rice pot blanket-like machine transplanting seedling tray and its application", proposes a fully degradable rice pot blanket-like machine transplanting seedling tray, including a pot hole, side walls and a tray body. The pot hole, side walls and tray body are integrated and made of rice straw. The bottom surface of the pot hole has no opening and there are no pores inside the pot hole. This seedling tray cultivates high-quality seedlings and is used for machine transplanting of rice seedlings. It reduces the damage to the roots by the seedling claws to a certain extent and shortens the greening period. However, the main problem is that the transplanter needs to use the seedling claws to pick up the seedlings according to the pot during machine transplanting, and the accuracy is difficult to ensure. The seedling claws can easily damage the plant material wrapped around the seedlings, which not only causes the matrix wrapped around the seedling roots to scatter, but also causes root damage, reduces the survival rate of seedling transplanting, increases the greening period, and cannot give full play to the agronomic advantages of seedling transplanting. In addition, the planting depth is large, which affects the seedlings' slow greening and early growth, and causes more high-node tillers, which reduces the ear formation rate.

[0004] Degradable seedling trays are sometimes also used for machine seedling throwing. First, the degradable seedling trays with seedlings must be divided into separate complete pot-shaped seedling blocks before they can be thrown. At present, this type of seedling throwing machine requires multi-stage cutting. First, it must be cut into strips longitudinally, and then cut into blocks transversely. Not only is the structure complex, but the cutting resistance is large and the efficiency is low. The cutting accuracy cannot be guaranteed, causing damage to the pot shape, leading to root damage, and the seedlings have a green period. The above problems all reduce the quality of seedling throwing. For example, the invention patent with patent number 201911219173.1, "A pneumatic orderly seedling throwing machine and seedling throwing method suitable for degradable seedling trays", proposes a pneumatic orderly seedling throwing machine suitable for degradable seedling trays. The device mainly includes a seedling box, a seedling feeding belt, a seedling retrieval component, a seedling separation component, a fan, a distributor, a planting seedling tube, etc. The rice seedlings in pots are accurately placed on the seedling box in whole trays, and are sent to the seedling retrieval part in whole rows by the seedling feeding belt. After the seedlings are taken in whole rows by the seedling retrieval part, each row of pot seedlings is divided into several individual pot seedlings, and the whole rows are sent to the seedling separation part. Under the action of the seedling separation part, the whole row of individual pot seedlings are accurately divided into several rows according to the predetermined row spacing, and then fall into the planting seedling tubes under each row. The individual pot seedlings are planted and stand in the paddy field in an orderly manner under the action of gravity and spiral airflow. This rice seedling throwing machine is not only complex in structure and too large in lateral dimensions, but also has the following problems: one tray of seedlings is used for multiple rows of seedlings throwing, the frequency of seedling placement is high, and the labor intensity is high; a number of disc knives are needed to cut the entire row of degradable seedling trays longitudinally, which not only has great cutting resistance, but also the disc knife surface is in contact with the side of the seedling tray at all times, resulting in great resistance to longitudinal seedling feeding; each pot hole of the degradable seedling tray is provided with breaking lines on both longitudinal sides, which greatly reduces the rigidity and strength of the seedling tray. When there are seedlings, it is not only inconvenient to carry, but also easy to deform and break, and it is also very difficult to place it on the seedling box.

[0005] Therefore, the problems of machine transplanting and machine throwing of degradable plant seedlings in pots have greatly reduced the advantages of green, environmental protection, high yield and high efficiency of degradable plant seedlings in pots. Summary of the invention

[0006] In view of the defects of the prior art, the purpose of the present invention is to provide a rice strip-shaped degradable seedling tray and a block-cutting and seedling-casting machine for the seedling tray. The rice strip-shaped degradable seedling tray is simple for sowing and seedling raising, convenient for transportation, and not easy to deform. When the machine is used to cast the seedlings, it does not need to cut strips longitudinally, but only needs to cut into blocks transversely, which can greatly reduce the damage to the pot shape and the damage to the root system, and improve the integrity of the pot-shaped seedling blocks. The block-cutting and seedling-casting machine does not need to cut strips longitudinally, but only needs to cut into blocks transversely at one level. It has a simple structure, high reliability, no damage to the seedlings, high seedling-casting efficiency, good uprightness of the seedlings after casting, and stable spacing between plants and rows.

[0007] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0008] A rice strip-shaped biodegradable seedling raising tray comprises a plurality of pot holes arranged in a single row, wherein the pot holes are in the shape of a regular quadrangular pyramid that is larger at the top and smaller at the bottom, a circle of upper side walls are arranged around the top of the pot holes, the cross-sections of the upper side walls on each side are rectangular, adjacent pot holes are connected as a whole via the upper side walls, and a bottom hole is provided at the bottom center of each pot hole.

[0009] As a further improvement of the above technical solution:

[0010] The width of the seedling raising tray is ≤20mm, the length is ≤590mm, the height is ≤30mm, the volume of a single pot hole is ≥3ml, and the center distance between the bottom holes of adjacent pot holes is ≤20mm.

[0011] As a general inventive concept, the present invention also provides a cutting and throwing machine for the above-mentioned rice strip-shaped biodegradable seedling raising tray, comprising a walking chassis, a horizontal seedling feeding mechanism, a longitudinal seedling feeding mechanism, a horizontal cutting mechanism and a seedling dropping guide mechanism are installed on the top of the walking chassis through a frame, and the seedling dropping guide mechanism comprises a plurality of groups of vertically arranged seedling dropping guide tubes, and a plurality of rectangular frames surrounded by side panels are arranged side by side in the horizontal direction on the top of the frame; the horizontal seedling feeding mechanism comprises a plurality of groups of horizontal seedling feeding belt transmissions arranged in each of the rectangular frames, and the plurality of groups of horizontal seedling feeding belt transmissions are all connected to a horizontal seedling feeding drive component and driven by the same to operate simultaneously; the belt output end of each horizontal seedling feeding belt transmission forms a first longitudinal seedling feeding channel between the adjacent side panels, and a gap is provided between the side panels at the rear end of the adjacent rectangular frames, which is connected to the first longitudinal seedling feeding channel and has the same width; the longitudinal seedling feeding mechanism comprises a plurality of groups of longitudinal seedling feeding belt transmissions arranged directly below each first longitudinal seedling feeding channel, and the plurality of groups of longitudinal seedling feeding belt transmissions are all connected to a longitudinal seedling feeding drive component The lateral cutting mechanism comprises a plurality of guide frames for delivering and cutting seedlings located at the output ends of the transmission of the longitudinal seedling delivering belts, a second longitudinal seedling delivering channel connected to the first longitudinal seedling delivering channel is arranged on the guide frame for delivering and cutting seedlings, and a seedling outlet is formed at the output end of the second longitudinal seedling delivering channel, and each seedling outlet is connected to the top of a seedling dropping guide tube; a group of cutting blade assemblies is arranged at one end of each group of guide frames for delivering and cutting seedlings near the seedling outlet, and all the cutting blade assemblies are connected to a transverse cutting blade drive assembly and driven by the same to perform transverse cutting. Move back and forth; when the horizontal seedling feeding belt transmission is working, the seedling tray placed thereon is transported horizontally to the first longitudinal seedling feeding channel and falls onto the longitudinal seedling feeding belt transmission; when the longitudinal seedling feeding belt transmission works to transport the seedling tray to one end of which is located at the seedling outlet, the cutting knife assembly moves back and forth to cut the seedling tray horizontally, and the independent pot blocks after cutting fall into the seedling guide tube under the push of the uncut seedling tray at the back, and are accelerated to penetrate into the mud under the action of gravity to complete the seedling throwing, and the corresponding seedling throwing spacing is obtained according to the driving speed of the walking chassis.

[0012] As a further improvement of the above technical solution:

[0013] Furthermore, the side panels include short side panels, spacer panels and long side panels, and the plurality of rectangular frames are surrounded by long side panels, a plurality of short side panels and spacer panels. The long side panels span the frame and are vertically arranged at the top front end of the frame, a plurality of short side panels are arranged side by side at the top rear end of the frame, a plurality of spacer panels are connected between the long side panels and each short side panel, and the gaps are provided between adjacent short side panels.

[0014] Furthermore, the transverse seedling feeding belt transmission includes a transverse seedling feeding belt and two horizontally arranged transverse seedling feeding belt rollers, of which one is an active roller and the other is a driven roller, and both ends of the transverse seedling feeding belt roller are respectively supported on the long side plate and the corresponding short side plate, and the transverse seedling feeding belt is wound around the two transverse seedling feeding belt rollers and the two side edges are respectively in contact with the short side plate and the long side plate, and the outer cylindrical surface of the input end of the transverse seedling feeding belt is tangent to the partition plate on one side, and the first longitudinal seedling feeding channel is formed between the output end and the partition plate on the other side, and the length of the first longitudinal seedling feeding channel is consistent with the length of the seedling raising tray, and the width is slightly larger than the width of the seedling raising tray; the width of the transverse seedling feeding belt is consistent with the length of the seedling raising tray, and the center distance between the two transverse seedling feeding belt rollers is preferably such that at least 14 seedling raising trays can be placed on the transverse seedling feeding belt, and each transverse seedling feeding distance of the transverse seedling feeding belt is consistent with the width of the seedling raising tray.

[0015] Furthermore, the transverse seedling delivery drive assembly includes a third motor, a transverse seedling delivery drive shaft and multiple groups of bevel gear transmissions corresponding one to one with the transverse seedling delivery belt transmissions. The third motor is installed on one side of the frame through a motor bracket, and the transverse seedling delivery drive shaft is installed horizontally on the outer side surface of the long side plate through a plurality of first supports, and one end is connected to the output shaft of the third motor. The driving bevel gears in each group of bevel gear transmissions are installed on the transverse seedling delivery drive shaft, and the driven bevel gears are installed on the roller shafts of each transverse seedling delivery belt roller serving as the driving roller. The transmission ratio of the driven bevel gear to the driving bevel gear is 1:1.

[0016] Furthermore, the longitudinal drive assembly includes a first motor, a longitudinal seedling delivery drive shaft, and a longitudinal seedling delivery driven shaft; the first motor is horizontally mounted on the other side of the frame through a motor bracket, the longitudinal seedling delivery drive shaft is horizontally arranged and mounted on the inner side of the long side plate through a plurality of second supports, one end of the longitudinal seedling delivery drive shaft is connected to the output shaft of the first motor, the longitudinal seedling delivery driven shaft is horizontally supported on the shaft holes opened on each seedling delivery and cutting guide frame, and is parallel to the longitudinal seedling delivery drive shaft, and the lengths of the longitudinal seedling delivery drive shaft and the longitudinal seedling delivery driven shaft correspond to the distance between the first and last two first longitudinal seedling delivery channels.

[0017] Furthermore, each set of longitudinal seedling sending belt transmission includes two longitudinal seedling sending pulleys and a longitudinal seedling sending belt wound thereon, the longitudinal seedling sending belts are located directly below the first longitudinal seedling sending channel and have the same width, one of the longitudinal seedling sending pulleys is coaxially mounted on the longitudinal seedling sending drive shaft as a driving pulley, and the other longitudinal seedling sending pulley is coaxially mounted on the longitudinal seedling sending driven shaft and is located in the second longitudinal seedling sending channel as a driven pulley; the center distance between the two longitudinal seedling sending pulleys is greater than the length of the first longitudinal seedling sending channel; the distance of the longitudinal seedling sending mechanism sending the seedlings longitudinally each time is consistent with the longitudinal pot distance of the seedling raising tray, and the longitudinal seedling sending mechanism sends the seedlings longitudinally once each time the transverse cutting mechanism completes a transverse cutting.

[0018] Furthermore, the bottom end of the seedling sending and cutting guide frame is installed on the top of the frame, including two guide side wall plates arranged in parallel and spaced apart to form the second longitudinal seedling sending channel, the ends of the two guide side wall plates away from the seedling outlet are fixedly connected to two adjacent short side plates, and a guide bottom plate is connected between the bottoms of the ends close to the seedling outlet, the output end of the longitudinal seedling sending belt is located in the second longitudinal seedling sending channel and smoothly transitions with the guide bottom plate to jointly form the bottom of the second longitudinal seedling sending channel; the outer sides of the ends of the two guide side wall plates close to the seedling outlet are provided with vertically arranged and laterally extended sliding cutter guide plates, the sliding cutter guide plates are provided with knife grooves, the knife grooves on both sides are connected and pass through the guide bottom plate, and the distance between the knife grooves and the seedling outlet is the longitudinal pot distance of the seedling tray.

[0019] Furthermore, an axial hole is provided in the middle of the two guide side wall plates, and the longitudinal seedling feeding driven shaft is passed through and supported in each axial hole; an upper guide strip is provided at the inner upper end of the two guide side wall plates, and the distance between the lower end surface of the upper guide strip and the upper end surface of the guide bottom plate is slightly higher than the height of the seedling tray.

[0020] Furthermore, the transverse block cutting drive assembly includes a second motor, a driving strip, a gear bar and a cylindrical gear. The second motor is installed on the side end of the frame through a motor bracket. The driving strip is horizontally supported on the frame through a plurality of limit supports and is located below the sliding cutter guide plate. A gear bar is installed below one end of the driving strip close to the second motor. The output shaft of the second motor is equipped with a cylindrical gear that meshes with the gear bar for transmission. The cutter assembly is installed above the driving strip and is driven by it to move left and right.

[0021] Furthermore, the cutter assembly includes a sliding cutter and a cutter seat. The sliding cutter is provided with sliding cutting edges on both sides, and its lower end is mounted on the cutter seat. The cutter seat is mounted above the driving strip plate through bolts. In the initial position, the sliding cutting edge of the sliding cutter is located in the cutter groove on one side. When the second motor is working, the gear bar drives the sliding cutter to move left and right within the range of the two cutter grooves.

[0022] Furthermore, the limiting support is a U-shaped structure, the bottom of the U-shaped structure is installed on the frame, and two upper and lower limiting wheels are provided on the inner sides of the two side walls, and the driving strip is slidably supported between the two limiting wheels.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] The rice strip-shaped degradable pot seedling raising tray of the present invention is composed of a plurality of pot holes connected in a single row, and is simple to sow and raise seedlings, convenient to transport, and not easy to deform. When the rice seedlings are thrown by a machine, only transverse cutting is required instead of longitudinal strip cutting, which can greatly reduce damage to the pot shape and the root system and improve the integrity of the pot-shaped seedling blocks.

[0025] The block-cutting and seedling-casting machine suitable for the above-mentioned strip-shaped degradable seedling-raising tray for pot seedlings of the present invention is used for seedling-casting and planting after the seedling-raising tray is sequentially transported horizontally, transported vertically and cut horizontally, so only a first-level horizontal cutting mechanism is required, and there is no complicated seedling-taking mechanism. The structure is simple, the reliability is high, the seedlings are not damaged, the seedling-casting efficiency is high, the seedlings have good uprightness after planting, and the spacing between plants and rows is stable. The block-cutting and seedling-casting machine for the strip-shaped degradable seedling-raising tray for pot seedlings not only has the technical advantages of early growth and rapid development of pot seedling cultivation, can give full play to the potential of rice yield, but also is green and environmentally friendly, and can effectively improve the economic benefits of mechanized rice transplanting. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the seedling raising tray of the present invention.

[0027] Figure 2 It is a top view of the seedling raising tray of the present invention.

[0028] Figure 3 It is a schematic diagram of arrangement of the seedling raising tray of the present invention in a 7-inch common flat tray when raising seedlings.

[0029] Figure 4 It is a schematic diagram of arrangement of the seedling raising tray of the present invention in a 9-inch common flat tray when raising seedlings.

[0030] Figure 5 It is a three-dimensional schematic diagram of the rice seedling raising tray with rice seedlings of the present invention.

[0031] Figure 6 It is a three-dimensional structural schematic diagram of the block-cutting and seedling-throwing machine of the present invention.

[0032] Figure 7 It is a three-dimensional structural schematic diagram of the block cutting and seedling throwing device in the block cutting and seedling throwing machine of the present invention.

[0033] Figure 8 It is a front view of a block-cutting and seedling-casting device in a block-cutting and seedling-casting machine of the present invention.

[0034] Fig. 9 The utility model is a bottom view of the block cutting and seedling throwing device in the block cutting and seedling throwing machine of the present invention.

[0035] Fig.10 yes Figure 7 Schematic diagram of the enlarged structure of part A.

[0036] Fig.11 yes Figure 8 Schematic diagram of the enlarged structure of part B.

[0037] Fig.12 It is a schematic diagram of the process of the sliding cutter in the block seedling throwing machine of the present invention moving from left to right (the left figure is when the sliding cutter is located in the left knife groove, the middle figure is when the sliding cutter moves to the seedling outlet, and the right figure is when the sliding cutter moves to the right knife groove).

[0038] Fig.13 It is a three-dimensional structural schematic diagram of different viewing angles of the guide frame for delivering and cutting rice seedlings in the cutting and throwing rice seedling machine of the present invention.

[0039] Fig.14 The utility model is a three-dimensional schematic diagram of the process of installing the sliding cutter on the cutter seat in the block seedling throwing machine of the present invention.

[0040] Fig.15 It is a three-dimensional structural schematic diagram of the horizontal seedling sending transmission in the block-cutting and seedling-throwing machine of the present invention.

[0041] Fig.16 The three-dimensional schematic diagram of the working steps (I) of the block-cutting and seedling-throwing machine of the present invention.

[0042] Fig.17 It is a three-dimensional schematic diagram of the working steps (II) of the block-cutting and seedling-throwing machine of the present invention.

[0043] Fig.18 It is a three-dimensional schematic diagram of the working steps (three) of the block-cutting and seedling-throwing machine of the present invention.

[0044] Fig.19 It is a three-dimensional schematic diagram of the working step (four) of the block-cutting and seedling-throwing machine of the present invention.

[0045] Legend:

[0046] 1. Pot hole; 2. Upper wall; 3. Bottom hole; 4. 7-inch ordinary flat plate; 5. 9-inch ordinary flat plate; 6. Seedlings; 7. Walking chassis; 8. First motor; 9. Second motor; 10. Third motor; 11. Frame; 12. Seedling guide tube; 13. Horizontal seedling conveying belt; 14. Short side plate; 15. Spacer plate; 16. Long side plate; 17. First support; 18. Driven bevel gear; 19. Active bevel gear; 20. Horizontal seedling conveying drive shaft; 21. Motor bracket; 22. Belt shaft support; 23. Limit support; 2 4. Driving strip; 25. Second support; 26. Longitudinal seedling delivery driving shaft; 27. Longitudinal seedling delivery belt; 28. Longitudinal seedling delivery pulley; 29. ​​Longitudinal seedling delivery driven shaft; 30. Seedling delivery and cutting guide frame; 31. Limiting wheel; 32. Knife seat; 33. Gear bar; 34. Cylindrical gear; 35. Sliding cutter; 36. Upper guide strip; 37. Sliding cutter guide plate; 38. Knife groove; 39. Guide bottom plate; 40. Guide side wall plate; 41. Axis hole; 42. Seedling outlet; 43. Horizontal seedling delivery belt roller; 44. Independent pot block. DETAILED DESCRIPTION

[0047] The invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] The rice strip-shaped degradable seedling raising tray of the present invention is as follows:

[0049] like Figure 1-Figure 5 As shown, an embodiment of a rice strip-shaped biodegradable seedling raising tray of the present invention is made of rice straw and other biodegradable materials, and includes a plurality of pot holes 1 arranged in a single row. The pot holes 1 are in the shape of a regular quadrangular pyramid with a larger top and a smaller bottom. A circle of upper side walls 2 are integrally provided around the top of the pot holes 1. The cross-sections of the upper side walls 2 on each side are rectangular. Adjacent pot holes 1 are connected as a whole by the upper side walls 2. A bottom hole 3 is provided at the bottom center of each pot hole 1.

[0050] In this embodiment, the width of the seedling tray is ≤20mm, the length is ≤590mm, the height is ≤30mm, the volume of a single pot hole 1 is ≥3ml, and the center distance between the bottom holes 3 of adjacent pot holes 1 is ≤20mm, which is the longitudinal pot distance.

[0051] The rice strip-shaped degradable pot seedling raising tray of the present invention adopts the form of a cover tray when raising and sowing rice seedlings, and the outer cover tray is a 7-inch ordinary flat tray 4 or a 9-inch ordinary flat tray 5 (such as Figure 3 , Figure 4 ). Arrange the rice strip-shaped degradable pot seedling raising tray of the present invention horizontally from one side of the tray, aligning the head and tail up and down until the tray is full. Taking the width of the rice seedling raising tray as an example, a 7-inch ordinary flat tray 4 can arrange 12 rice strip-shaped degradable pot seedling raising trays (such as Figure 3), 9-inch ordinary flat plate 5 can arrange 14 rice strip degradable pot seedling trays (such as Figure 4 After the tray is installed, the seeding is carried out by using a seedling raising production line or manually, and other seedling field management methods are the same as conventional seedling raising. When the seedlings meet the transplanting requirements, the strip-shaped degradable pot seedling raising tray with seedlings 6 (such as Figure 5 ) is taken out from the tray and placed on the cutting and throwing machine for transplanting. The seedling raising tray of the present invention is simple for sowing and raising seedlings, convenient for transportation, and not easy to deform. When the machine throws the seedlings, it does not need to cut them longitudinally, but only needs to cut them transversely, which can greatly reduce the damage to the pot shape and the damage to the root system, and improve the integrity of the pot-shaped seedling blocks.

[0052] Embodiment of the cutting and throwing machine of the present invention:

[0053] like Figure 6-Figure 19 As shown, an embodiment of a cutting and throwing machine for the above-mentioned rice strip-shaped degradable pot seedling raising tray of the present invention comprises a walking chassis 7 and a cutting and throwing device arranged at the rear end of the top of the walking chassis 7 (with its forward direction as the front end) through a frame 11, and the cutting and throwing device comprises a horizontal seedling sending mechanism, a longitudinal seedling sending mechanism, a horizontal cutting mechanism and a seedling dropping guide mechanism, and the seedling dropping guide mechanism comprises a plurality of groups of vertically arranged seedling dropping guide pipes 12. The walking chassis 7 pulls the whole machine to travel, and generally a high-speed riding type rice transplanter chassis is selected.

[0054] In this embodiment, the frame 11 is integral, spanning the entire walking chassis 7, and a plurality of rectangular frames surrounded by side panels are arranged side by side in the horizontal direction on the top of the frame; the transverse seedling delivery mechanism includes multiple groups of transverse seedling delivery belt transmissions arranged in each rectangular frame, and the multiple groups of transverse seedling delivery belt transmissions are connected to a transverse seedling delivery drive assembly and driven by it to operate simultaneously; the belt output end of each transverse seedling delivery belt transmission forms a first longitudinal seedling delivery channel between the adjacent partition plates 15, and the gap width between the adjacent short side plates 14 is consistent with the width of the first longitudinal seedling delivery channel. The longitudinal seedling delivery mechanism includes multiple groups of longitudinal seedling delivery belt transmissions arranged directly below each first longitudinal seedling delivery channel, and the multiple groups of longitudinal seedling delivery belt transmissions are connected to a longitudinal seedling delivery drive assembly and driven by it to operate simultaneously. The transverse cutting mechanism includes a plurality of groups of guide frames 30 for sending and cutting seeds, which are located at the output end of each longitudinal seedling sending belt transmission. The guide frames 30 for sending and cutting seeds are provided with a second longitudinal seedling sending channel connected with the first longitudinal seedling sending channel. The output end of the second longitudinal seedling sending channel forms a seedling outlet 42, and each seedling outlet 42 is connected with the top of a seedling falling guide tube 12; each group of guide frames 30 for sending and cutting seeds is provided with a group of cutting knife assemblies at one end close to the seedling outlet 42, and all the cutting knife assemblies are connected with a transverse cutting drive assembly and driven by it to make transverse reciprocating movements. When the transverse seedling conveying belt transmission is working, the seedling raising plate placed thereon is transversely conveyed to the first longitudinal seedling conveying channel and falls onto the longitudinal seedling conveying belt transmission. When the longitudinal seedling conveying belt transmission works to convey the seedling raising plate to one end of which is located at the seedling outlet 42, the cutter assembly moves back and forth to cut the seedling raising plate transversely. The independent pot blocks 44 after cutting fall into the seedling dropping guide tube 12 under the push of the uncut seedling raising plate behind, and accelerate into the mud to complete the seedling throwing under the action of gravity. The corresponding seedling throwing plant spacing is obtained according to the driving speed of the walking chassis 7. The block-cutting and seedling throwing machine of the present invention is suitable for the above-mentioned strip-shaped degradable pot seedling raising plate. The seedling raising plate is successively transported transversely, transported longitudinally and cut transversely before seedling throwing and planting. Therefore, the block-cutting and seedling throwing machine only needs a first-level transverse cutting mechanism. It has a simple structure, high reliability, no damage to the pot seedlings, high seedling throwing efficiency, good uprightness of the seedlings after throwing, and stable plant spacing and row spacing. The strip-shaped biodegradable seedling tray for cutting and throwing not only has the technical advantage of early growth and rapid development of seedlings in pot cultivation, which can fully tap the potential of rice production, but is also green and environmentally friendly, and can effectively improve the economic benefits of mechanized rice transplanting.

[0055] In this embodiment, the side panels include long side panels 16, short side panels 14 and spacer panels 15, and a plurality of rectangular frames are formed by the long side panels 16, a plurality of short side panels 14 and spacer panels 15. The long side panels 16 span the frame 11 and are vertically arranged at the top front end of the frame 11. A plurality of short side panels 14 are arranged side by side at the top rear end of the frame 11. A plurality of spacer panels 15 are connected between the long side panels 16 and each short side panel 14. A gap is provided between adjacent short side panels 14. The lower ends of the short side panels 14, the spacer panels 15 and the long side panels 16 are all fixedly mounted on the top surface of the frame 11. One block-cutting and seedling-casting unit corresponds to each other between adjacent spacer panels 15.

[0056] In this embodiment, each transverse seedling-feeding belt transmission includes a transverse seedling-feeding belt 13 and two transverse seedling-feeding belt rollers 43. Among the two transverse seedling-feeding belt rollers 43, one is an active roller and the other is a driven roller. The two ends of the transverse seedling-feeding belt roller 43 are supported on the long side plate 16 and the corresponding short side plate 14 through the belt shaft support 22. The transverse seedling-feeding belt 13 is wound around the two transverse seedling-feeding belt rollers 43. The width of the transverse seedling-feeding belt 13 is consistent with the length of the seedling-raising tray. The two sides are in contact with the short side plate 14 and the long side plate 16 respectively, which can play a good guiding role for the seedling-raising tray when the seedlings are sent horizontally. The transverse seedling-feeding belt 13 bypasses the outer circumferential surface of the active transverse seedling-feeding belt roller 43 and is tangent to the partition plate 15. The transverse seedling-feeding belt 13 bypasses the outer circumferential surface of the driven transverse seedling-feeding belt roller 43 and forms a first longitudinal seedling-feeding channel between the outermost end and the partition plate 15. The length of the first longitudinal seedling-feeding channel is consistent with the length of the seedling-raising tray, and the width is slightly larger than the width of the seedling-raising tray. The center distance between the two transverse seedling conveying belt rollers 43 is preferably such that at least 14 seedling raising trays can be placed on the transverse seedling conveying belt 13. The transverse seedling conveying distance of each transverse seedling conveying belt is consistent with the width of the seedling raising tray.

[0057] In this embodiment, the transverse seedling delivery drive assembly includes a third motor 10, a transverse seedling delivery drive shaft 20 and multiple groups of bevel gear transmissions corresponding to the transverse seedling delivery belt transmissions. The third motor 10 is installed on one side of the frame 11 through a motor bracket 21. The transverse seedling delivery drive shaft 20 is horizontally installed on the outer side surface of the long side plate 16 through a plurality of first supports 17, and one end is connected to the output shaft of the third motor 10. The active bevel gear 19 in each group of bevel gear transmissions is installed on the transverse seedling delivery drive shaft 20, and the driven bevel gear 18 is installed on the roller shaft of one end of each active transverse seedling delivery belt roller 43 supported on the long side plate 16. The transmission ratio of the driven bevel gear 18 to the active bevel gear 19 is 1:1.

[0058] The working process of the transverse seedling feeding mechanism is as follows: the seedling raising tray is placed transversely on the transverse seedling feeding belt 13, and the transverse seedling feeding is an intermittent motion. The third motor 10 drives the transverse seedling feeding drive shaft 20 to rotate a certain angle each time, and the transverse seedling feeding drive shaft 20 drives all active bevel gears 19 to rotate. The active bevel gears 19 drive the corresponding driven bevel gears 18, and the driven bevel gears 18 drive the active transverse seedling feeding belt roller 43 to rotate. The distance traveled by the transverse seedling feeding belt 13 each time is the width of the seedling raising tray, that is, the transverse seedling feeding distance each time is consistent with the width of the seedling raising tray. When there is a seedling raising tray in the first longitudinal seedling feeding channel, the transverse seedling feeding mechanism does not work. When the seedling raising tray completely enters the second longitudinal seedling feeding channel under the action of the longitudinal seedling feeding mechanism, the transverse seedling feeding belt 13 performs the next transverse seedling feeding.

[0059] In this embodiment, the longitudinal drive assembly includes a first motor 8, a longitudinal seedling delivery drive shaft 26 and a longitudinal seedling delivery driven shaft 29. Each longitudinal seedling delivery belt transmission includes two longitudinal seedling delivery pulleys 28 and a longitudinal seedling delivery belt 27 wound thereon, both of which are located below the transverse seedling delivery belt 13. The longitudinal seedling delivery belt 27 is located directly below the first longitudinal seedling delivery channel and has the same width. One of the two longitudinal seedling delivery pulleys 28 is active and the other is driven. The longitudinal seedling delivery drive shaft 26 is arranged horizontally and supported on the inner side of the long side plate 16 by a plurality of second supports 25, and is fixedly connected to each active longitudinal seedling delivery pulley 28 to drive all longitudinal seedling delivery belts 27. The first motor 8 is fixedly mounted on the side end of the frame 11 through the motor bracket 21 and is fixedly connected to the longitudinal seedling delivery drive shaft 26.

[0060] In this embodiment, the longitudinal seedling-feeding driven shaft 29 is fixedly connected to each driven longitudinal seedling-feeding belt pulley 28, and is supported on the shaft holes 41 of a plurality of seedling-feeding and cutting guide frames 30, and the driven longitudinal seedling-feeding belt pulley 28 is located between two guide side wall plates 40. The center distance between the two longitudinal seedling-feeding belt pulleys 28 is greater than the length of the first longitudinal seedling-feeding channel, so most of the longitudinal seedling-feeding belt 27 is located in the first longitudinal seedling-feeding channel, and a small part is located in the second longitudinal seedling-feeding channel.

[0061] The working process of the longitudinal seedling feeding mechanism is as follows: under the action of the transverse seedling feeding belt 13 and gravity, and under the guidance of the partition plate 15, the seedling raising tray falls onto the longitudinal seedling feeding belt 27. The longitudinal seedling feeding is an intermittent motion. The first motor 8 drives the longitudinal seedling feeding drive shaft 26 to rotate a certain angle each time, and the longitudinal seedling feeding drive shaft 26 drives each active longitudinal seedling feeding belt pulley 28 to rotate. The longitudinal seedling feeding belt 27 travels each time The distance is the center distance between the bottom holes 3 of the longitudinally adjacent pots, that is, each longitudinal seedling feeding distance is consistent with the longitudinal pot distance of the seedling raising tray. Each time the transverse cutting mechanism completes a transverse cutting, the longitudinal seedling feeding mechanism longitudinally feeds the seedlings once.

[0062] In this embodiment, the bottom end of the seedling sending and cutting guide frame 30 is fixedly supported on the top of the frame 11, and includes two parallel and spaced guide side wall plates 40, and a second longitudinal seedling sending channel is formed between the two guide side wall plates 40. The ends of the two guide side wall plates 40 away from the seedling outlet 42 are fixedly connected to two adjacent short side plates 14, and a guide bottom plate 39 is connected between the bottoms of the ends close to the seedling outlet 42. The output end of the longitudinal seedling sending belt 27 is located in the second longitudinal seedling sending channel and smoothly transitions with the guide bottom plate 39 to jointly form the bottom of the second longitudinal seedling sending channel; the outer sides of the ends of the two guide side wall plates 40 close to the seedling outlet 42 are provided with vertically arranged and laterally extended sliding knife guide plates 37, and the sliding knife guide plates 37 are provided with knife grooves 38. The knife grooves 38 on both sides are connected and penetrate the guide bottom plate 39, and the distance between the knife grooves 38 and the seedling outlet 42 is the longitudinal pot distance of the seedling tray.

[0063] In this embodiment, the middle of the two guide side wall plates 40 is provided with an axis hole 41 for passing the longitudinal seedling feeding driven axis 29. The upper ends of the inner sides of the two guide side wall plates 40 are respectively provided with upper guide strips 36, and the distance between the lower end surface of the upper guide strips 36 and the upper end surface of the guide bottom plate 39 is slightly higher than the height of the seedling raising tray, so that the seedling raising tray can be limited up and down when cutting horizontally.

[0064] In this embodiment, the transverse block cutting drive assembly includes a second motor 9, a driving strip plate 24, a gear bar 33 and a cylindrical gear 34. The second motor 9 is installed on the side end of the frame 11 through the motor bracket 21. The driving strip plate 24 is horizontally supported on the frame 11 through a plurality of limit supports 23 and is located below the sliding cutter guide plate 37. A gear bar 33 is installed below one end of the driving strip plate 24 close to the second motor 9. The output shaft of the second motor 9 is equipped with a cylindrical gear 34 that meshes with the gear bar 33 for transmission. The cutter assembly is installed above the driving strip plate 24 and is driven by it to move left and right.

[0065] In this embodiment, the cutter assembly includes a sliding cutter 35 and a cutter holder 32. The sliding cutter 35 has sliding cutting edges on both sides. The lower end of the sliding cutter 35 is installed in the cutter holder 32 by bolts with the cutting edge facing upward. The cutter holder 32 is installed above the driving strip plate 24 by bolts. In the initial position, each sliding cutter 35 is located in the cutter groove 38 on one side. When the second motor 9 is working, the gear bar 33 drives all the sliding cutters 35 to move left and right within the range of the corresponding two cutter grooves 38.

[0066] In this embodiment, the limit support 23 is a U-shaped structure, the bottom of the U-shaped structure is supported on the frame 11, and two upper and lower limit wheels 31 are provided on the inner sides of the two side walls. The end of the driving strip 24 that is not provided with a gear bar 33 is slidably supported between the two limit wheels 31 to limit the upper and lower positions of the driving strip 24.

[0067] Working process of the transverse slicing mechanism: Taking the initial position of the sliding cutter at the leftmost side of the knife groove 38 as an example, the transverse slicing is an intermittent motion. Under the action of the longitudinal seedling feeding belt 27, the seedling raising plate enters the second longitudinal seedling feeding channel. When one end of the seedling raising plate reaches the seedling outlet 42, the cylindrical gear 34 rotates clockwise by an angle under the drive of the second motor 9, and the driving gear bar 33 drives the driving strip plate 24 to move horizontally to the right, and the sliding cutter 35 moves from the leftmost side to the rightmost side. At this time, a transverse slicing is completed, and the seedling raising plate is cut into independent pot blocks 44 by the transversely moving sliding cutter 35. At this time, the longitudinal seedling feeding belt 27 delivers the seedlings, and the independent pot blocks 44 fall to the seedling falling guide tube 12 under the push of the uncut seedling raising plate behind. One end of the seedling raising plate reaches the seedling outlet 42 again, and the cylindrical gear 34 rotates counterclockwise by an angle to perform the next transverse slicing.

[0068] In this embodiment, the seedling guide mechanism includes a plurality of seedling guide tubes 12, which are fixedly mounted on the frame 11 and are used to receive the independent pot blocks 44 falling from the seedling outlet 42. The upper end of the seedling guide tube 12 is provided with a notch connected to the seedling outlet 42. The independent pot blocks 44 are adjusted and guided in the seedling guide tube 12 to ensure the uprightness of the seedlings. The independent pot blocks 44 are accelerated to penetrate the mud under the action of gravity to complete the seedling throwing. The distance between the lower end outlets of each seedling guide tube 12 is the seedling throwing row spacing.

[0069] The working principle of the block-throwing machine of the present invention is:

[0070] The rice strip-shaped degradable seedling raising tray (hereinafter referred to as "seedling raising tray") with the seedlings 6 is aligned head to tail and placed one by one on the transverse seedling conveying belt 13, the upper side walls 2 of adjacent seedling raising trays are in contact with each other, the length direction of the seedling raising tray is perpendicular to the transverse seedling conveying direction, and the seedling raising tray moves transversely intermittently under the action of the transverse seedling conveying belt 13. When the seedling raising tray reaches the edge of the transverse seedling conveying belt 13, it falls onto the longitudinal seedling conveying belt 27 under the action of the transverse seedling conveying belt 13 and gravity. At this time, the seedling raising tray moves longitudinally intermittently under the action of the longitudinal seedling conveying belt 27. When one end of the seedling raising tray reaches the seedling outlet 42, it is cut into independent pot blocks 44 by the transversely moving sliding cutter 35. The independent pot blocks 44 fall to the seedling dropping guide tube 12 under the push of the uncut seedling raising tray behind, and accelerate into the mud under the action of gravity to complete the seedling throwing. The corresponding seedling throwing spacing is obtained according to the driving speed of the walking chassis 7.

[0071] The cutting and throwing machine for the strip-shaped degradable seedling tray of potted seedlings of the present invention only needs a first-level transverse cutting mechanism, does not have a complicated seedling taking mechanism, has a simple structure, high reliability, does not damage the seedlings, has a high efficiency of throwing, and the seedlings have good uprightness after throwing, and the spacing between plants and rows is stable. The cutting and throwing machine for the strip-shaped degradable seedling tray of potted seedlings not only has the technical advantages of early growth and rapid development of potted seedlings, gives full play to the potential of rice yield, but is also green and environmentally friendly, and can effectively improve the economic benefits of mechanized rice transplanting.

[0072] The working process of the block-cutting and seedling-throwing machine of the present invention is as follows:

[0073] The following is an example of a 6-row cutting and transplanting machine using a strip-shaped biodegradable seedling tray with a width of 20 mm, a center distance of 19 mm between the bottom holes of adjacent pots, 31 pots in the longitudinal direction.

[0074] Working steps (I) Fig.16 ):

[0075] Align the rice strip-shaped biodegradable seedling trays with seedlings (hereinafter referred to as "seedling trays") one by one on the transverse seedling conveying belt, with the upper side walls of adjacent seedling trays in contact with each other, and the length direction of the seedling trays is perpendicular to the transverse seedling conveying direction. When the transverse seedling conveying belt is filled with seedling trays, the third motor drives the transverse seedling conveying drive shaft to rotate a certain angle, and the transverse seedling conveying drive shaft drives the active bevel gear of each block-cutting and seedling throwing unit to rotate, and the driven bevel gear meshing with it drives the active transverse seedling conveying belt roller to rotate, and the transverse seedling conveying belt travels 20mm, and the seedling tray located near the first longitudinal seedling conveying channel is separated from the transverse seedling conveying belt, and under the action of gravity, it falls onto the longitudinal seedling conveying belt under the guidance of the partition plate. Each time the transverse seedling conveying is completed, there will be one less seedling tray on the side of the transverse seedling conveying belt close to the partition plate, which can be supplemented in time or after several trays are missing.

[0076] Working steps (II) Fig.17 ):

[0077] When there is a seedling tray in the first longitudinal seedling delivery channel, the transverse seedling delivery belt does not work. When the first seedling tray enters the first longitudinal seedling delivery channel, there is no seedling tray in the second longitudinal seedling delivery channel at this time, and the longitudinal seedling delivery belt first works continuously to deliver the end of the seedling tray to the knife groove position. At this time, the first motor drives the longitudinal seedling delivery drive shaft to rotate a certain angle, and the longitudinal seedling delivery drive shaft drives the active longitudinal seedling delivery pulley of each cutting and throwing unit to rotate, and the longitudinal seedling delivery belt travels 19mm, and the end of the seedling tray reaches the seedling outlet to wait for transverse cutting.

[0078] Working steps (three) Fig.18 ):

[0079] Driven by the second motor, the cylindrical gear rotates an angle, driving the gear bar to move horizontally, thereby driving the sliding cutter to move from one side of the knife groove to the other side of the knife groove. At this time, a horizontal cutting is completed, and the seedling tray is cut into independent pot blocks by the horizontally moving sliding cutter.

[0080] Working steps (IV) Fig.19 ):

[0081] At this time, repeat step (ii), use the longitudinal seedling feeding belt to feed the seedlings, and the independent pot blocks fall into the seedling guide tube under the push of the uncut seedling raising tray at the back. One end of the seedling raising tray reaches the seedling outlet again, and repeat step (iii) for the next horizontal cutting.

[0082] Working steps (five):

[0083] The independent pot blocks are adjusted and guided in the seedling guide tube to ensure the uprightness of the seedlings, and are accelerated to penetrate into the mud under the action of gravity to complete the seedling throwing.

[0084] When the seedling tray completely enters the second longitudinal seedling delivery channel under the action of the longitudinal seedling delivery belt, step (1) is repeated, and the transverse seedling delivery belt performs the next transverse seedling delivery. At this time, since the second longitudinal seedling delivery channel has the remaining seedling trays from the previous seedling cutting and throwing, and the first longitudinal seedling delivery channel has the complete seedling trays delivered transversely, the two can be connected end to end, and the latter pushes the former to continue moving forward, so that cutting can be carried out uninterruptedly.

[0085] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A rice seedling cutting and throwing machine for a rice strip-shaped degradable seedling raising tray, comprising a walking chassis (7), wherein a horizontal seedling feeding mechanism, a vertical seedling feeding mechanism, a horizontal cutting mechanism and a seedling dropping guide mechanism are installed on the top of the walking chassis (7) through a frame (11), wherein the seedling dropping guide mechanism comprises a plurality of groups of vertically arranged seedling dropping guide tubes (12), wherein the rice strip-shaped degradable seedling raising tray comprises a plurality of pot holes (1) arranged in a single row, wherein the pot holes (1) are in the shape of a regular tetrahedral pyramid with a larger top and a smaller bottom, wherein a circle of upper side walls (2) are integrally provided around the top of the pot holes (1), wherein the cross-sections of the upper side walls (2) on each side are rectangular, and adjacent pot holes (1) are connected as a whole through the upper side walls (2), wherein a bottom hole (3) is provided at the bottom center of each pot hole (1), wherein the pot holes (1) are characterized in that: A plurality of rectangular frames surrounded by side panels are arranged side by side in the transverse direction on the top of the frame (11); The transverse seedling delivery mechanism comprises a plurality of transverse seedling delivery belt transmissions arranged in each of the rectangular frames, and the plurality of transverse seedling delivery belt transmissions are connected to a transverse seedling delivery drive assembly and driven thereby to operate simultaneously; the belt output ends of the transverse seedling delivery belt transmissions form a first longitudinal seedling delivery channel between the adjacent side plates, and a gap having the same width as that of the first longitudinal seedling delivery channel is provided between the side plates at the rear ends of the adjacent rectangular frames; The longitudinal seedling delivery mechanism comprises a plurality of longitudinal seedling delivery belt transmissions arranged directly below each first longitudinal seedling delivery channel, and the plurality of longitudinal seedling delivery belt transmissions are all connected to a longitudinal seedling delivery drive assembly and driven by the longitudinal seedling delivery drive assembly to operate simultaneously; The transverse slicing mechanism comprises a plurality of groups of seedling-feeding and slicing guide frames (30) located at the output ends of the transmission of each longitudinal seedling-feeding belt, the seedling-feeding and slicing guide frames (30) being provided with a second longitudinal seedling-feeding channel connected to the first longitudinal seedling-feeding channel, the output end of the second longitudinal seedling-feeding channel forming a seedling outlet (42), each seedling outlet (42) being connected to the top of a seedling-dropping guide tube (12); a group of cutting blade assemblies are provided at one end of each group of seedling-feeding and slicing guide frames (30) close to the seedling outlet (42), and all the cutting blade assemblies are connected to a transverse slicing drive assembly and driven thereby to perform transverse reciprocating movement; When the transverse seedling conveying belt drive is in operation, the seedling raising tray placed thereon is transversely conveyed to the first longitudinal seedling conveying channel and falls onto the longitudinal seedling conveying belt drive. When the longitudinal seedling conveying belt drive is in operation and conveys the seedling raising tray to a point where one end thereof is located at the seedling outlet (42), the cutter assembly moves back and forth to transversely cut the seedling raising tray into pieces. The cut independent pot pieces (44) fall into the seedling dropping guide tube (12) under the push of the uncut seedling raising tray behind them and are accelerated to penetrate the mud under the action of gravity to complete the seedling throwing. The corresponding seedling throwing spacing is obtained according to the travel speed of the walking chassis (7).

2. The block-cutting and throwing machine according to claim 1, characterized in that: The side panels comprise short side panels (14), spacer panels (15) and long side panels (16); the plurality of rectangular frames are surrounded by the long side panels (16), the plurality of short side panels (14) and the spacer panels (15); the long side panels (16) span the frame (11) and are vertically arranged at the top front end of the frame (11); the plurality of short side panels (14) are arranged side by side at the top rear end of the frame (11); the plurality of spacer panels (15) are connected between the long side panels (16) and each short side panel (14); and the gaps are provided between adjacent short side panels (14).

3. The block-cutting and throwing machine according to claim 2, characterized in that: The transverse seedling conveying belt transmission comprises a transverse seedling conveying belt (13) and two horizontally arranged transverse seedling conveying belt rollers (43), one of the two transverse seedling conveying belt rollers (43) being an active roller and the other being a driven roller, the two ends of the transverse seedling conveying belt roller (43) being respectively supported on the long side plate (16) and the corresponding short side plate (14), the transverse seedling conveying belt (13) being wound around the two transverse seedling conveying belt rollers (43) and the two side edges being respectively in contact with the short side plate (14) and the long side plate (16), the outer circumferential surface of the input end of the transverse seedling conveying belt (13) being tangent to the spacer plate (15) on one side, and the first longitudinal seedling conveying channel being formed between the output end and the spacer plate (15) on the other side, the length of the first longitudinal seedling conveying channel being consistent with the length of the seedling raising tray, and the width being slightly greater than the width of the seedling raising tray; The width of the transverse seedling conveying belt (13) is consistent with the length of the seedling raising tray, the center distance between the two transverse seedling conveying belt rollers (43) is preferably such that at least 14 seedling raising trays can be placed on the transverse seedling conveying belt (13), and the transverse seedling conveying distance of each transverse seedling conveying belt (13) is consistent with the width of the seedling raising tray.

4. The block-cutting and transplanting machine according to claim 3, characterized in that: The transverse seedling delivery drive assembly comprises a third motor (10), a transverse seedling delivery drive shaft (20), and a plurality of bevel gear transmissions corresponding to the transverse seedling delivery belt transmissions. The third motor (10) is mounted on one side of the frame (11) via a motor bracket (21). The transverse seedling delivery drive shaft (20) is horizontally mounted on the outer side surface of the long side plate (16) via a plurality of first supports (17) in a transverse direction, and one end is connected to the output shaft of the third motor (10). The driving bevel gears (19) in each group of bevel gear transmissions are mounted on the transverse seedling delivery drive shaft (20), and the driven bevel gears (18) are mounted on the roller shafts of the transverse seedling delivery belt rollers (43) serving as driving rollers. The transmission ratio between the driven bevel gears (18) and the driving bevel gears (19) is 1:

1.

5. The block-cutting and throwing machine according to claim 1, characterized in that: The longitudinal seedling delivery drive assembly comprises a first motor (8), a longitudinal seedling delivery drive shaft (26), and a longitudinal seedling delivery driven shaft (29); the first motor (8) is horizontally mounted on the other side of the frame (11) via a motor bracket (21); the longitudinal seedling delivery drive shaft (26) is horizontally arranged and mounted on the inner side surface of the long side plate (16) via a plurality of second supports (25); one end of the longitudinal seedling delivery drive shaft (26) is connected to the output shaft of the first motor (8); the longitudinal seedling delivery driven shaft (29) is horizontally supported on an axis hole (41) provided on each seedling delivery and cutting guide frame (30) and is parallel to the longitudinal seedling delivery drive shaft (26); the lengths of the longitudinal seedling delivery drive shaft (26) and the longitudinal seedling delivery driven shaft (29) both correspond to the distance between the first and last first longitudinal seedling delivery channels.

6. The block-cutting and throwing machine according to claim 5, characterized in that: Each set of longitudinal seedling delivery belt transmission comprises two longitudinal seedling delivery pulleys (28) and a longitudinal seedling delivery belt (27) wound thereon, the longitudinal seedling delivery belt (27) being located directly below the first longitudinal seedling delivery channel and having the same width, one of the longitudinal seedling delivery pulleys (28) being coaxially mounted on the longitudinal seedling delivery drive shaft (26) as a driving pulley, and the other longitudinal seedling delivery pulley (28) being coaxially mounted on the longitudinal seedling delivery driven shaft (29) and being located in the second longitudinal seedling delivery channel as a driven pulley; the center distance between the two longitudinal seedling delivery pulleys (28) being greater than the length of the first longitudinal seedling delivery channel; The distance that the longitudinal seedling delivery mechanism delivers the seedlings longitudinally each time is consistent with the longitudinal pot distance of the seedling raising tray. Each time the transverse cutting mechanism completes transverse cutting, the longitudinal seedling delivery mechanism delivers the seedlings longitudinally once.

7. The block-cutting and throwing machine according to claim 6, characterized in that: The bottom end of the seedling delivery and cutting guide frame (30) is mounted on the top of the frame (11), and comprises two parallel and spaced guide side wall plates (40) which form the second longitudinal seedling delivery channel. One end of the two guide side wall plates (40) away from the seedling outlet (42) is fixedly connected to two adjacent short side plates (14), and a guide bottom plate (39) is connected between the bottoms of the ends close to the seedling outlet (42). The output end of the longitudinal seedling delivery belt (27) is located in the second longitudinal seedling delivery channel and smoothly transitions with the guide bottom plate (39) to form the bottom of the second longitudinal seedling delivery channel. The outer sides of the ends of the two guide side wall plates (40) close to the seedling outlet (42) are provided with vertically arranged and laterally extended sliding knife guide plates (37), and knife grooves (38) are provided in the sliding knife guide plates (37). The knife grooves (38) on both sides are connected and penetrate the guide bottom plate (39), and the distance between the knife grooves (38) and the seedling outlet (42) is the longitudinal pot distance of the seedling raising tray.

8. The block-cutting and throwing machine according to claim 7, characterized in that: The shaft hole (41) is provided in the middle of the two guide side wall plates (40), and the longitudinal seedling feeding driven shaft (29) is passed through and supported in each shaft hole (41); the inner upper ends of the two guide side wall plates (40) are provided with an upper guide strip (36), and the distance between the lower end surface of the upper guide strip (36) and the upper end surface of the guide bottom plate (39) is slightly higher than the height of the seedling raising tray.

9. The block-cutting and transplanting machine according to claim 7, characterized in that: The transverse cutting drive assembly comprises a second motor (9), a driving strip plate (24), a gear bar (33) and a cylindrical gear (34); the second motor (9) is mounted on a side end of the frame (11) through a motor bracket (21); the driving strip plate (24) is horizontally supported on the frame (11) through a plurality of limit supports (23) and is located below the sliding cutter guide plate (37); a gear bar (33) is mounted below one end of the driving strip plate (24) close to the second motor (9); the output shaft of the second motor (9) is mounted with a cylindrical gear (34) meshing with the gear bar (33) for transmission; the cutter assembly is mounted above the driving strip plate (24) and is driven by the driving strip plate (24) to move left and right.

10. The block-cutting and throwing machine according to claim 9, characterized in that: The cutter assembly comprises a sliding cutter (35) and a cutter holder (32). The sliding cutter (35) is provided with sliding cutting edges on both sides. The lower end of the sliding cutter (35) is mounted on the cutter holder (32) with the cutting edges facing upward. The cutter holder (32) is mounted above the driving strip plate (24) by means of bolts. In an initial position, the sliding cutter (35) is located in a cutter groove (38) on one side. When the second motor (9) is working, the gear bar (33) drives the sliding cutter (35) to move left and right within the range of the two cutter grooves (38).

11. The block-cutting and throwing machine according to claim 9, characterized in that: The limiting support (23) is in a U-shaped structure, the bottom of the U-shaped structure is mounted on the frame (11), two upper and lower limiting wheels (31) are provided on the inner sides of the two side walls, and the driving strip (24) is slidably supported between the two limiting wheels (31).

12. The block-cutting and throwing machine according to claim 1, characterized in that: The width of the seedling raising tray is ≤20 mm, the length is ≤590 mm, the height is ≤30 mm, the volume of a single pot hole (1) is ≥3 ml, and the center distance between the bottom holes (3) of adjacent pot holes (1) is ≤20 mm.

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