Quantitative printing seeder for rice seedling raising

Abstract

The utility model discloses a rice seedling raising quantitative printing seeder, and relates to the technical field of printing seeders. The rice seedling raising quantitative printing seeder comprises a bottom plate, a printing mechanism is arranged above the bottom plate, and the conveying assembly is arranged above the bottom plate and used for conveying printing paper; the dispensing assembly comprises a fixing frame arranged above the conveying assembly, a gear pump is fixedly installed on the left side of the fixing frame, a flow dividing pipe is fixedly installed at the liquid discharging end of the gear pump, a hose is fixedly installed on one side of the flow dividing pipe, and a feeding pipe is fixedly installed at the feeding end of the gear pump. The top of the glue barrel is provided with the exhaust pipe and connected with the air compressor, before glue dispensing, the air compressor is started, air above the liquid level of glue in the glue barrel is pumped out through the exhaust pipe, the air pressure above the liquid level is reduced, bubbles in the glue expand and float upwards under the action of pressure difference until breakage is eliminated, the bubbles are prevented from entering a glue dispensing pipeline, and the stable glue dispensing amount is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of printing and seeding machine technology, specifically a quantitative printing and seeding machine for rice seedling cultivation. Background Technology

[0002] The rice printing seeder is a new type of sowing equipment that combines modern agricultural technology with printing principles. Its core function is to achieve efficient, uniform, and standardized sowing of rice seeds through precise "printing" operation, which is of great significance for improving rice planting efficiency, reducing costs, and ensuring seedling quality.

[0003] The existing utility model patent with publication number CN212975688U discloses an automatic printing and sowing machine, including a frame and a conveying assembly for conveying roll paper; a dispensing mechanism for diverting glue and dispensing the diverted glue onto the roll paper; a reciprocating motion mechanism for driving the dispensing mechanism to perform reciprocating dispensing operations; and a control mechanism for controlling the speed of the reciprocating dispensing operation of the dispensing mechanism to match the running speed of the conveying assembly. This utility model uses a servo drive to enable the dispensing mechanism to complete high-speed reciprocating motion, and the control assembly performs high-precision control operations, resulting in high dispensing accuracy and good consistency. It effectively solves the problems of high dispensing speed, strong dispensing consistency, and stable material supply in agricultural printing and sowing operations, effectively improving the smoothness of the production process, increasing production efficiency, and improving the current production situation.

[0004] The aforementioned automatic printing and seeding machine cannot adjust the spacing between the dispensing components according to actual needs to meet the number of seeds per unit area, thereby adjusting the seedling density. Furthermore, the device cannot eliminate air bubbles inside the dispensing material during the dispensing process. Air bubbles in the dispensing mechanism pipeline can cause a sudden reduction in the amount of dispensing or even a break in the dispensing process. After the air bubbles are expelled, the dispensing liquid will overflow excessively due to the instantaneous recovery of the pressure in the pipeline, resulting in an uneven phenomenon of "sometimes more, sometimes less". Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a quantitative printing and sowing machine for rice seedling cultivation, which solves the problems of air bubbles affecting the amount of glue applied and the inability to adjust the spacing between glue dots.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A rice seedling quantitative printing and sowing machine includes a base plate, and a printing mechanism is provided above the base plate.

[0007] A conveying assembly, located above the base plate, is used to convey printing paper;

[0008] The dispensing assembly includes a fixed frame positioned above the conveying assembly. A gear pump is fixedly mounted on the left side of the fixed frame. A diverter pipe is fixedly mounted on the discharge end of the gear pump. A flexible hose is fixedly mounted on one side of the diverter pipe. An inlet pipe is fixedly mounted on the inlet end of the gear pump. A glue cylinder is connected to the bottom end of the inlet pipe. A sealing plug is movably mounted on the top of the glue cylinder. An exhaust pipe is fixedly mounted above the glue cylinder. An air compressor is connected to the end of the exhaust pipe. A thin-walled cylinder is fixedly mounted below the fixed frame. A movable frame is fixedly mounted below the thin-walled cylinder. A guide rod is fixedly mounted below one end of the movable frame. A slider is inserted through the outside of the guide rod. A connecting rod is movably mounted between the sliders. Transmission plates are movably mounted on both sides of the connecting rod. A transmission electric actuator is fixedly mounted on one side of the transmission plate.

[0009] Preferably, the dispensing assembly further includes a gear metering pump fixed to one side of the slider, a storage tube fixedly installed above the gear metering pump, a miniature electric actuator fixedly installed below the gear metering pump, a cavity fixedly installed below the gear metering pump, a dispensing tube fixedly installed at the bottom of the cavity, and a plug movably installed inside the cavity.

[0010] Preferably, the conveying assembly includes a support frame fixedly installed above the base plate, a limit roller movably installed inside the support frame, a winding motor fixedly installed on the left front end of the support frame, a winding roller inserted through the outer side of the rotating shaft of the winding motor, a telescopic rod fixedly installed above the base plate, a spring inserted through the outer side of the telescopic rod, a vibrating frame fixedly installed at the top of the telescopic rod, a vibrating motor fixedly installed inside the vibrating frame, a material distribution bin fixedly installed at the top of the support frame, a suction machine fixedly installed above the material distribution bin, and a material cylinder fixedly installed above the base plate.

[0011] Preferably, the limiting roller and the support frame are rotatably connected, the shaft of the winding motor and the winding roller are slidably connected by interlocking, the winding roller is a split structure, the central shaft and the outer roller are slidably connected, and the inner wall of the left end of the winding roller shaft is provided with a groove that fits into the outer protrusion structure of the winding motor drive shaft, the vibrating frame is movably connected to the base plate through a telescopic rod, the spring is located between the vibrating frame and the base plate, the vibrating motor is fixedly installed on the flat plate structure below the vibrating frame, the bottom end of the material distribution bin is a conical structure, and the bottom end of the feed pipe of the suction machine is located at the center of the bottom of the inner cavity of the material cylinder.

[0012] Preferably, one end of the hose is connected to the diverter pipe, and the other end is connected to the top of the storage pipe. The rubber tube has a closed structure, and the sealing plug is movably connected to the top of the rubber tube through a threaded structure. The bottom end of the feed pipe is located inside the rubber tube, and the top end of the exhaust pipe is flush with the top of the rubber tube. The air inlet of the air compressor is connected to the inner cavity of the rubber tube through the exhaust pipe. The movable frame is movably connected to the fixed frame through a thin-walled cylinder, and the guide rods are symmetrically installed on the front and rear sides of the movable frame.

[0013] Preferably, the slider and the guide rod form a sliding connection, the slider and the connecting rod form a rotating connection, the connecting rod and the transmission plate form a rotating connection, the fixed end of the transmission electric push rod is fixedly connected to the movable frame, the bottom end of the storage tube is fixedly connected to the inlet end of the gear metering pump, the outlet end of the gear metering pump is fixedly connected to the top of the cavity, the cavity is provided with a "T"-shaped pipe structure, the dispensing tube is connected to the gear metering pump through the cavity, the plug and the cavity form a sliding connection, and a rubber ring is fitted on the outside of the plug.

[0014] Beneficial effects

[0015] This utility model provides a quantitative printing and sowing machine for rice seedling raising. Compared with the prior art, it has the following advantages:

[0016] (1) This rice seedling quantitative printing and sowing machine uses an exhaust pipe installed on the top of the glue cylinder and connected to an air compressor. Before dispensing, the air compressor is started, and the air above the liquid surface of the glue in the glue cylinder is extracted through the exhaust pipe, reducing the air pressure above the liquid surface. The air bubbles inside the glue expand and float to the surface under the action of the pressure difference until they burst and are eliminated, preventing air bubbles from entering the dispensing pipeline and ensuring a stable dispensing volume. At the same time, a storage pipe is set above the gear metering pump to store a certain amount of glue. The glue delivered from the glue cylinder first enters the storage pipe. Even if there are a small amount of residual air bubbles in the glue, they will not directly affect the dispensing operation of the dispensing pipeline in the storage pipe, further reducing the interference of air bubbles on the dispensing volume.

[0017] (2) This rice seedling quantitative printing and sowing machine uses a thin-walled cylinder installed below the fixed frame in the dispensing assembly, which drives the movable frame to move up and down. A guide rod is fixed below the movable frame, and a slider is inserted through the guide rod. A connecting rod is installed between the sliders, and a transmission plate is connected to both sides of the connecting rod. A transmission electric actuator is installed on one side of the transmission plate. When it is necessary to adjust the glue dot spacing, the transmission electric actuator is activated, pushing the transmission plate to move and changing the size of the interior angle of the continuous quadrilateral structure formed by the connecting rod, so that the slider slides on the guide rod, thereby adjusting the spacing between the gear metering pumps fixed on one side of the slider, and finally realizing the adjustment of the glue dot spacing to adapt to different seedling density requirements. At the same time, a micro electric actuator is installed below the gear metering pump, which is connected to a plug. When adjusting the glue dot spacing to adapt to different planting densities, the micro electric actuator drives the plug to move, closing or opening the "T"-shaped pipe inside the cavity, controlling the glue delivery of the dispensing tube, and further precisely controlling the sowing density in conjunction with the glue dot spacing adjustment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the vibration motor of this utility model;

[0020] Figure 3 This is a schematic diagram of the glue bucket installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the thin-walled cylinder of this utility model;

[0022] Figure 5 This is a schematic diagram of the transmission plate mounting structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the installation structure of the gear metering pump of this utility model;

[0024] Figure 7 This is a schematic diagram of the plug installation structure of this utility model;

[0025] In the diagram: 1. Base plate; 2. Printing mechanism; 21. Conveying assembly; 211. Support frame; 212. Limiting roller; 213. Rewinding motor; 214. Rewinding roller; 215. Telescopic rod; 216. Spring; 217. Vibrating frame; 218. Vibrating motor; 219. Material distribution bin; 2110. Material suction machine; 2111. Material cylinder; 22. Dispensing assembly; 221. Fixing frame; 222. Gear pump; 223. Diverter pipe; 224. Hose; 225. 226. Feed pipe; 227. Glue tube; 228. Sealing plug; 229. Exhaust pipe; 220. Air compressor; 2210. Thin-walled cylinder; 2211. Movable frame; 2212. Guide rod; 2213. Slider; 2214. Connecting rod; 2215. Transmission plate; 2216. Transmission electric actuator; 2217. Gear metering pump; 2218. Storage pipe; 2219. Miniature electric actuator; 2220. Cavity; 2221. Dispensing tube; 2222. Plug. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-7 This utility model provides a technical solution: a rice seedling quantitative printing and sowing machine, including a base plate 1, and a printing mechanism 2 arranged above the base plate 1.

[0028] A conveying assembly 21, positioned above the base plate 1, is used to convey printing paper. The conveying assembly 21 includes a support frame 211 fixedly mounted above the base plate 1. A limit roller 212 is movably mounted inside the support frame 211. A winding motor 213 is fixedly mounted on the left front end of the support frame 211. A winding roller 214 is inserted through the outer side of the shaft of the winding motor 213. A telescopic rod 215 is fixedly mounted above the base plate 1. A spring 216 is inserted through the outer side of the telescopic rod 215. A vibrating frame 217 is fixedly mounted at the top of the telescopic rod 215. A vibrating motor 218 is fixedly mounted inside the vibrating frame 217. A material distribution bin 219 is fixedly mounted on the top of the support frame 211. A suction machine 2110 is fixedly mounted above the material distribution bin 219. A... The material cylinder 2111 is equipped with a rotatable connection between the limiting roller 212 and the support frame 211. The shaft of the winding motor 213 and the winding roller 214 are slidably connected by interlocking. The winding roller 214 is a split structure with a slidable connection between the central shaft and the outer roller. The inner wall of the left end of the winding roller 214 shaft is provided with a groove that fits into the outer protrusion structure of the drive shaft of the winding motor 213. The vibrating frame 217 is movably connected to the base plate 1 through the telescopic rod 215. The spring 216 is located between the vibrating frame 217 and the base plate 1. The vibrating motor 218 is fixedly installed on the flat plate structure below the vibrating frame 217. The bottom end of the material distribution bin 219 is a conical structure. The bottom end of the feed pipe 225 of the suction machine 2110 is located at the center of the bottom of the inner cavity of the material cylinder 2111.

[0029] The base plate 1 supports the printing mechanism 2, and the support frame 211 restricts the position of the limiting roller 212. The winding motor 213 drives the winding roller 214 to rotate and wind up the printing paper. The outer roller of the winding roller 214 is connected to the central shaft of the winding roller 214 through a sliding groove structure. The inner wall of the outer roller of the winding roller 214 is provided with a protruding structure, and the outer side of the central shaft of the winding roller 214 is provided with a groove that fits into the protruding structure of the inner wall of the outer roller. The outer roller of the winding roller 214 and the central shaft form a sliding connection. The seed in the material cylinder 2111 is transported to the material distribution bin 219 by the suction machine 2110. The conical structure at the bottom of the bin will make the seed fall more evenly on the printing paper. The vibration motor 218 causes the vibration frame 217 to vibrate in the up and down direction. The seeds on the printing paper are spread evenly on the printing paper by vibration so that the colloid adheres to the seeds at each point.

[0030] The dispensing assembly 22 includes a fixed frame 221 disposed above the conveying assembly 21. A gear pump 222 is fixedly installed on the left side of the fixed frame 221. A diverter pipe 223 is fixedly installed at the discharge end of the gear pump 222. A hose 224 is fixedly installed on one side of the diverter pipe 223. An inlet pipe 225 is fixedly installed at the inlet end of the gear pump 222. A glue cylinder 226 is connected to the bottom end of the inlet pipe 225. A sealing plug 227 is movably installed on the top of the glue cylinder 226. An exhaust pipe 228 is fixedly installed above the glue cylinder 226. An air compressor 229 is connected to the end of the exhaust pipe 228. A thin-walled cylinder 2210 is fixedly installed below the fixed frame 221. A movable frame 2211 is fixedly installed below the thin-walled cylinder 2210. A guide rod 2212 is fixedly installed below one end of the movable frame 2211. A slider 2213 is inserted through the outside of the guide rod 2212. A connecting rod 2214 is movably installed between the sliders 2213. A transmission plate 2215 is movably installed on both sides of the connecting rod 2214. A transmission electric actuator 2216 is fixedly installed on one side of the transmission plate 2215. The dispensing assembly 22 also includes a gear metering pump 2217 fixed to one side of the slider 2213. A storage tube 2218 is fixedly installed above the gear metering pump 2217. A miniature electric actuator 2219 is fixedly installed below the gear metering pump 2217. A cavity 2220 is fixedly installed below the gear metering pump 2217. A bottom of the cavity 2220 is fixedly installed with... There is a rubber hose 2221, and a plug 2222 is movably installed inside the cavity 2220. One end of the hose 224 is connected to the diverter pipe 223, and the other end is connected to the top of the storage pipe 2218. The rubber cylinder 226 is a closed structure, and the sealing plug 227 is movably connected to the top of the rubber cylinder 226 through a threaded structure. The bottom end of the feed pipe 225 is located inside the rubber cylinder 226. The top end of the exhaust pipe 228 is flush with the top of the rubber cylinder 226. The air inlet of the air compressor 229 is connected to the inner cavity of the rubber cylinder 226 through the exhaust pipe 228. The movable frame 2211 is movably connected to the fixed frame 221 through the thin-walled cylinder 2210. The guide rod 2212 is symmetrically installed on the front and rear sides of the movable frame 2211. The slider 22... 13 is slidably connected to guide rod 2212, slider 2213 is rotatably connected to connecting rod 2214, connecting rod 2214 is rotatably connected to transmission plate 2215, fixed end of transmission electric push rod 2216 is fixedly connected to movable frame 2211, bottom end of storage pipe 2218 is fixedly connected to inlet end of gear metering pump 2217, outlet end of gear metering pump 2217 is fixedly connected to top of cavity 2220, cavity 2220 has a "T" shaped pipe structure inside, dispensing pipe 2221 is connected to gear metering pump 2217 through cavity 2220, plug 2222 is slidably connected to cavity 2220, and rubber ring is fitted on the outside of plug 2222.

[0031] The fixing bracket 221 restricts the relative position between the gear pump 222 and the diversion pipe 223, so that the gear pump 222 can transport the colloid inside the glue cylinder 226 through the feed pipe 225 to the diversion pipe 223, and then transport it through the array of hoses 224 on one side of the diversion pipe 223 to the inside of the storage pipe 2218. The hoses 224 can accommodate the up, down, left, and right displacement of the gear metering pump 2217 below, so that the upper end of the storage pipe 2218 is always connected to the diversion pipe 223, ensuring a tight seal. After the plug 227 is removed, colloid can be added into the colloid 226 through the opening structure at the top of the colloid 226. When the air compressor 229 starts, it extracts the air above the surface of the colloid liquid in the colloid 226 through the exhaust pipe 228, reducing the air pressure above the liquid surface inside the colloid 226. The air bubbles inside the colloid will rise under the pressure difference until they burst. The thin-walled cylinder 2210 can drive the movable frame 2211 to move up and down, and the guide rod 2212 can restrict the slider 2213. The direction of movement is controlled, and the sliders 2213 are kept in the same plane. The sliders 2213 facilitate the movable connection between the gear metering pump 2217 and the guide rod 2212. The transmission plate 2215 is moved by the transmission electric push rod 2216 to adjust the size of each internal angle of the continuous quadrilateral structure formed by the connecting rod 2214, so as to adjust the spacing between the sliders 2213, thereby controlling the colloid spacing to adapt to different seedling densities. A portion of the colloid is stored above the gear metering pump 2217 through the storage tube 2218 to prevent air bubbles in the colloid from affecting the dispensing operation of the dispensing tube 2221. The plug 2222 is moved by the micro electric push rod 2219 to close the trapezoidal tube inside the cavity 2220, so that the gear metering pump 2217 cannot deliver colloid into the dispensing tube 2221 to adapt to different planting densities. The bottom of the dispensing tube 2221 is made of silicone and the top is made of metal to prevent damage to the printing paper during the dispensing process.

[0032] Specifically, the winding motor 213 is model YLJ100-6-6, the vibratory motor 218 is model DCFZ, the gear pump 222 is model P7200-F160NM4676G, the air compressor 229 is model JBFB-0.6 / 8, the thin-walled cylinder 2210 is model CDUJB6-8DM, the transmission electric actuator 2216 is model YHCD-1, the gear metering pump 2217 is model PFG-214 / RO\20.4L, and the miniature electric actuator 2219 is model MNTL. Furthermore, any content not described in detail in this specification is prior art known to those skilled in the art.

[0033] During operation, the printing paper is guided from the rear to the front limit roller 212 by the winding roller 214 driven by the winding motor 213. The dispensing assembly 22 located at the rear operates first. The gear pump 222 delivers the adhesive in the glue cylinder 226 through the feed pipe 225, the diverter pipe 223, and the hose 224 to the storage pipe 2218. The air compressor 229 removes air bubbles from the glue cylinder 226 through the exhaust pipe 228 to ensure uniform adhesive. The transmission electric actuator 2216 adjusts the spacing of the slider 2213 through the transmission plate 2215 and the connecting rod 2214, thereby adjusting the lateral spacing of the dispensing tube 2221. The gear metering pump 2217 precisely controls the amount of adhesive. The thin-walled cylinder 221... The movable frame 2211 is driven to bring the dispensing tube 2221 close to the printing paper. The glue is squeezed out from the dispensing tube 2221 through the cavity 2220 to form a quantitative glue dot. The micro electric push rod 2219 can drive the plug 2222 to close the cavity 2220 to control the start and stop of dispensing. After dispensing, the printing paper continues to move forward to the vibration mechanism. The feeder 2110 transports the seeds in the material cylinder 2111 to the distribution bin 219. The seeds fall evenly to the glue dot area of ​​the printing paper through the conical bottom. The vibration motor 218 drives the vibration frame 217 to vibrate in cooperation with the telescopic rod 215 and the spring 216, spreading the seeds evenly so that each glue dot can effectively adhere to the seeds, and finally completing the quantitative and uniform printing and sowing.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rice seedling quantitative printing seeder, comprising a base plate (1), characterized in that: A printing mechanism (2) is provided above the base plate (1): A conveying assembly (21) is disposed above the base plate (1) and is used to convey printing paper; The dispensing assembly (22) includes a mounting bracket (221) disposed above the conveying assembly (21). A gear pump (222) is fixedly installed on the left side of the mounting bracket (221). A diverter pipe (223) is fixedly installed at the discharge end of the gear pump (222). A hose (224) is fixedly installed on one side of the diverter pipe (223). An inlet pipe (225) is fixedly installed at the inlet end of the gear pump (222). A glue cylinder (226) is connected to the bottom end of the inlet pipe (225). A sealing plug (227) is movably installed on the top of the glue cylinder (226). An exhaust pipe (228) is fixedly installed above the glue cylinder (226). An air compressor (229) is connected to the end of (228). A thin-walled cylinder (2210) is fixedly installed below the fixed frame (221). A movable frame (2211) is fixedly installed below the thin-walled cylinder (2210). A guide rod (2212) is fixedly installed below one end of the movable frame (2211). A slider (2213) is inserted through the outside of the guide rod (2212). A connecting rod (2214) is movably installed between the sliders (2213). A transmission plate (2215) is movably installed on both sides of the connecting rod (2214). A transmission electric actuator (2216) is fixedly installed on one side of the transmission plate (2215).

2. The rice seedling quantitative printing and sowing machine according to claim 1, characterized in that: The dispensing assembly (22) also includes a gear metering pump (2217) fixed to one side of the slider (2213). A storage tube (2218) is fixedly installed above the gear metering pump (2217). A miniature electric actuator (2219) is fixedly installed below the gear metering pump (2217). A cavity (2220) is fixedly installed below the gear metering pump (2217). A dispensing tube (2221) is fixedly installed at the bottom of the cavity (2220). A plug (2222) is movably installed inside the cavity (2220).

3. The rice seedling quantitative printing and sowing machine according to claim 1, characterized in that: The conveying assembly (21) includes a support frame (211) fixedly installed above the base plate (1). A limit roller (212) is movably installed inside the support frame (211). A winding motor (213) is fixedly installed on the left side of the front end of the support frame (211). A winding roller (214) is inserted through the outside of the rotating shaft of the winding motor (213). A telescopic rod (215) is fixedly installed above the base plate (1). A spring (216) is inserted through the outside of the telescopic rod (215). A vibrating frame (217) is fixedly installed at the top of the telescopic rod (215). A vibrating motor (218) is fixedly installed inside the vibrating frame (217). A material distribution bin (219) is fixedly installed at the top of the support frame (211). A suction machine (2110) is fixedly installed above the material distribution bin (219). A material cylinder (2111) is fixedly installed above the base plate (1).

4. The rice seedling quantitative printing and sowing machine according to claim 3, characterized in that: The limiting roller (212) and the support frame (211) are rotatably connected. The shaft of the winding motor (213) and the winding roller (214) are slidably connected by interlocking. The winding roller (214) is a split structure. The central shaft and the outer roller are slidably connected. The inner wall of the left end of the winding roller (214) shaft is provided with a groove that fits into the outer protrusion structure of the drive shaft of the winding motor (213). The vibrating frame (217) is movably connected to the base plate (1) through the telescopic rod (215). The spring (216) is located between the vibrating frame (217) and the base plate (1). The vibrating motor (218) is fixedly installed on the flat plate structure below the vibrating frame (217). The bottom end of the material distribution bin (219) is a conical structure. The bottom end of the feed pipe (225) of the suction machine (2110) is located at the center of the bottom of the inner cavity of the material cylinder (2111).

5. A rice seedling quantitative printing and sowing machine according to claim 2, characterized in that: One end of the hose (224) is connected to the diverter pipe (223), and the other end is connected to the top of the storage pipe (2218). The rubber cylinder (226) is a closed structure. The sealing plug (227) is connected to the top of the rubber cylinder (226) through a threaded structure. The bottom end of the feed pipe (225) is located inside the rubber cylinder (226). The top end of the exhaust pipe (228) is flush with the top of the rubber cylinder (226). The air inlet of the air compressor (229) is connected to the inner cavity of the rubber cylinder (226) through the exhaust pipe (228). The movable frame (2211) is connected to the fixed frame (221) through a thin-walled cylinder (2210). The guide rod (2212) is symmetrically installed on the front and rear sides of the movable frame (2211).

6. A rice seedling quantitative printing and sowing machine according to claim 5, characterized in that: The slider (2213) and the guide rod (2212) are connected by a sliding connection. The slider (2213) and the connecting rod (2214) are connected by a rotating connection. The connecting rod (2214) and the transmission plate (2215) are connected by a rotating connection. The fixed end of the transmission electric push rod (2216) is fixedly connected to the movable frame (2211). The bottom end of the storage tube (2218) is fixedly connected to the inlet end of the gear metering pump (2217). The outlet end of the gear metering pump (2217) is fixedly connected to the top of the cavity (2220). The cavity (2220) is provided with a "T"-shaped pipe structure. The dispensing tube (2221) is connected to the gear metering pump (2217) through the cavity (2220). The plug (2222) and the cavity (2220) are connected by a sliding connection. A rubber ring is fitted on the outside of the plug (2222).

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