Automatic metering and packaging device for water-soluble fertilizer

Abstract

The present invention relates to the technical field of subpackaging devices, and discloses an automatic metering and subpackaging device for water-soluble fertilizers, comprising a base, wherein two support plates are symmetrically fixedly mounted on the upper surface of the base, and cylinders are rotatably mounted on the outer surfaces of the adjacent sides of the tops of the two support plates. The present invention causes the end of the plug block to abut against the lower surface of the card block, so that the card block drives the arc slide plate to slide upward along the arc groove, and the arc baffle plate, because there is no obstruction of the arc slide plate, pushes the arc discharge shell out of the discharge port under the action of the water-soluble fertilizer liquid pressure, at this time, the outlet on the lower surface of the arc discharge shell is opened, and the water-soluble fertilizer liquid inside the storage bin passes through the outlet, and then flows into the storage barrel inside the storage barrel through the guide groove, and the water-soluble fertilizer can be automatically metered and subpacked by the device, and when the water-soluble fertilizer is metered and subpacked in batches, the metering and subpackaging efficiency will be greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of packaging devices, and in particular to an automatic metering and packaging device for water-soluble fertilizer. Background Art

[0002] Water-soluble fertilizer is a liquid or solid fertilizer that is dissolved or diluted in water and used for irrigation, foliar fertilization, soilless cultivation, seed soaking and root dipping. The production process of water-soluble fertilizer involves automatic packaging, which requires a metering device for metering.

[0003] When the existing packaging device is in use, the operator weighs the water-soluble fertilizer through a weight measuring scale, and the water-soluble fertilizer is packaged only after the weight reaches the standard. The existing device requires the operator to manually control the weight when weighing, which greatly reduces the efficiency of metering and packaging when the water-soluble fertilizer is metered and packaged in batches. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose an automatic metering and packaging device for water-soluble fertilizer.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A water-soluble fertilizer automatic metering and packaging device comprises a base, wherein two support plates are symmetrically fixedly installed on the upper surface of the base, cylinders are rotatably installed on the outer surfaces of the adjacent sides of the tops of the two support plates, an arc-shaped barrel is fixedly installed between the two cylinders, the outer shape of the arc-shaped barrel is spindle-shaped, the adjacent ends of the two cylinders penetrate the end surface of the arc-shaped barrel and are connected with the interior thereof, a plurality of partitions are equidistantly fixedly installed on the inner wall of the cylinder, a storage bin is arranged between the partition and the inner wall of the arc-shaped barrel, a plurality of fixed plates are equidistantly fixedly installed on the inner wall of the arc-shaped barrel, square sliding columns are slidably inserted on the upper surfaces of the plurality of fixed plates, and the The bottom end of the square sliding column passes through the lower surface of the fixed plate and is fixedly installed with a floating plate, the floating plate is arranged inside the storage bin, the inner wall of the arc-shaped barrel is equidistantly penetrated with a plurality of discharge ports, the upper surface of the base is fixedly installed with a sealing ring, the sealing ring is sleeved on the circumferential outer surface of the arc-shaped barrel and fits with the circumferential outer surface, the sealing ring is slidably installed with the arc-shaped barrel, the circumferential outer surface of the sealing ring is provided with a discharge port, the discharge port is connected with the discharge port, the lower surface of the floating plate is provided with pits, through the setting of the pits, a negative pressure space is formed between the water-soluble fertilizer liquid and the lower surface of the floating plate, so that the floating plate is pulled down synchronously when the water-soluble fertilizer descends.

[0007] As a further solution of the present invention, an arc-shaped discharge shell is slidably installed on the inner wall of the discharge port, an outlet is penetrated through the lower surface of the arc-shaped discharge shell, a support is fixedly installed on the circumferential outer surface of the sealing ring, a rotating rod is rotatably installed on the inner wall of the support, the bottom end of the rotating rod is fixedly installed on the outer surface of the arc-shaped discharge shell, and an arc baffle is fixedly installed on the top of the rotating rod, and the center of the arc baffle and the arc-shaped discharge shell coincides with the rotation center of the rotating rod.

[0008] As a further solution of the present invention, an inlet and an outlet are provided on the circumferential outer surface of the sealing ring, and the arc baffle is slidably installed with the inner wall of the inlet and the outlet, a sliding groove is provided on the outer surface of one side of the sealing ring, and an arc groove is also provided on the outer surface of one side of the sealing ring, and an arc slide is slidably installed on the inner wall of the arc groove, one end of the arc baffle passes through the inner wall of the inlet and outlet and abuts against the outer surface of the arc slide, a bayonet is provided on the inner wall of the arc groove near the top, and a clamping block is slidably installed on the inner wall of the bayonet, and the clamping block is fixedly connected to the outer surface of the top of the arc slide, a spring is fixedly installed on the end face of the top of the arc slide, and the top of the spring is fixedly installed on the top wall of the arc groove, and the discharge port is staggered from the sliding groove.

[0009] As a further solution of the present invention, the inner wall of the arc-shaped barrel is provided with a plurality of holes at equal intervals, and the inner walls of the plurality of holes are slidably mounted with plug blocks, and a driving column is fixedly mounted on the inner wall of the plug block near one end of the square sliding column, and a driving groove is penetrated through the outer surface of the square sliding column near the top, and the driving column is slidably mounted on the inner wall of the driving groove, and the other end of the plug block penetrates the hole and abuts against the lower surface of the block.

[0010] As a further solution of the present invention, an opening is provided on the circumferential outer surface of the sealing ring, a shift block is slidably installed on the inner wall of the opening, one end of the shift block is fixedly connected to the outer surface of the top end of the arc skateboard, a protrusion is provided at the bottom end of the arc skateboard, and a groove matching the protrusion is provided on the upper surface of the arc baffle.

[0011] As a further solution of the present invention, a material guide groove is fixedly installed on the circumferential outer surface of the sealing ring, and the material guide groove is arranged directly below the discharge port. A placement barrel is fixedly installed on the upper surface of the base, and a storage barrel is arranged inside the placement barrel, and the placement barrel is arranged directly below the material guide groove.

[0012] As a further solution of the present invention, an L-shaped feed pipe is fixedly installed on the outer surface of one of the support plates near the top, the bottom end of the L-shaped feed pipe is inserted into the interior of one of the cylinders, and a feed hopper is fixedly installed on the top of the L-shaped feed pipe, and the feed hopper is connected to the interior of the arc barrel through the L-shaped feed pipe.

[0013] As a further scheme of the present invention, a support plate is fixedly installed on the end face of the L-shaped feed pipe near the bottom end, and an exhaust fan is rotatably installed on the outer surface of the support plate near the L-shaped feed pipe side, one end of the exhaust fan passes through the outer surface of the support plate and a second gear is fixedly installed, the outer surface of one side of the support plate is rotatably installed with a first gear, the first gear is meshed with the second gear, an annular internal gear is fixedly installed on the inner wall of one end of the arc-shaped barrel, the annular internal gear is meshed with the first gear, a driven gear is fixedly installed on the circumferential outer surface of the other cylinder, a servo motor is fixedly installed on the outer surface of one side of the support plate, the output end of the servo motor passes through the outer surface of the support plate and a driving gear is fixedly installed, the driving gear is meshed with the driven gear, and the other end of the other cylinder passes through the outer surface of the support plate and a cover plate is fixedly installed.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The end of the insert block is against the lower surface of the card block, so that the card block drives the arc slide plate to slide upward along the arc groove. At this time, the outer surface of the arc slide plate near the bottom leaves the end of the arc baffle. Because there is no arc slide plate to block the arc baffle, under the action of the water-soluble fertilizer liquid pressure, the arc discharge shell is pushed out of the discharge port. At this time, the outlet on the lower surface of the arc discharge shell is opened, and the water-soluble fertilizer liquid inside the storage bin passes through the outlet and then flows into the storage barrel inside the storage barrel through the guide groove. The device can automatically measure and pack the water-soluble fertilizer, which will greatly improve the efficiency of measuring and packing when measuring and packing the water-soluble fertilizer in batches;

[0016] 2. When the water-soluble fertilizer inside the storage bin gradually decreases, the floating plate will gradually move down. At this time, the arc slide plate will also move down. When the protrusion at the bottom of the arc slide plate slides into the inside of the groove, the arc baffle is restricted from sliding, and the arc-shaped discharge shell can be kept in an open state. This device makes it easier for the water-soluble fertilizer to be discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an automatic metering and packaging device for water-soluble fertilizers proposed by the present invention;

[0018] Figure 2 This is a front structural schematic diagram of an automatic metering and packaging device for water-soluble fertilizer proposed by the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of an automatic metering and packaging device for water-soluble fertilizers proposed by the present invention;

[0020] Figure 4 A schematic diagram of a partition of an automatic metering and packaging device for water-soluble fertilizers proposed by the present invention;

[0021] Figure 5 A schematic diagram of a discharge port of an automatic metering and packaging device for water-soluble fertilizers proposed by the present invention;

[0022] Figure 6 A schematic diagram of a sealing ring of an automatic metering and packaging device for water-soluble fertilizers proposed by the present invention;

[0023] Figure 7 A schematic diagram of a chute of an automatic metering and packaging device for water-soluble fertilizers proposed by the present invention;

[0024] Figure 8 A schematic diagram of an arc slide plate of an automatic metering and packaging device for water-soluble fertilizer proposed by the present invention;

[0025] Fig. 9 for Figure 3 A partial enlarged schematic diagram in the middle;

[0026] Fig.10 for Figure 6 Partial enlargement of point B in the middle.

[0027] In the figure: 1, base; 2, support plate; 3, sealing ring; 301, slide; 4, placement barrel; 5, cylinder; 6, curved barrel; 601, discharge port; 602, plug hole; 7, L-shaped feed pipe; 8, feed hopper; 9, servo motor; 10, driven gear; 11, driving gear; 12, guide trough; 13, partition; 14, fixed plate; 15, square slide column; 16, floating plate; 17, plug block; 1701, driving column; 1702 , driving groove; 18, arc-shaped discharge shell; 19, rotating rod; 20, arc baffle; 2001, protrusion; 2002, groove; 21, arc groove; 22, inlet and outlet; 23, support; 24, exhaust fan; 25, support plate; 26, first gear; 27, second gear; 28, gear inside the ring; 29, arc slide plate; 2901, shift block; 2902, clamping block; 2903, bayonet; 2904, opening; 30, spring. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Reference Figure 1-Figure 10A water-soluble fertilizer automatic metering and packaging device comprises a base 1, two support plates 2 are symmetrically fixedly installed on the upper surface of the base 1, cylinders 5 are rotatably installed on the outer surfaces of the adjacent sides of the tops of the two support plates 2, an arc barrel 6 is fixedly installed between the two cylinders 5, and the arc barrel 6 is arranged in a spindle shape. The adjacent ends of the two cylinders 5 penetrate the end surface of the arc barrel 6 and are connected with the inside thereof, a plurality of partitions 13 are fixedly installed on the inner wall of the cylinder 5 at equal intervals, a storage bin is arranged between the partition 13 and the inner wall of the arc barrel 6, and the arc barrel 6 is provided with a plurality of partitions 13. The inner wall is fixedly installed with multiple fixed plates 14 at equal intervals, and the upper surfaces of the multiple fixed plates 14 are slidably inserted with square sliding columns 15. The bottom ends of the square sliding columns 15 penetrate the lower surfaces of the fixed plates 14 and are fixedly installed with floating plates 16. The floating plates 16 are arranged inside the storage bin. The inner wall of the arc-shaped barrel 6 is equidistantly penetrated with multiple discharge ports 601. The upper surface of the base 1 is fixedly installed with a sealing ring 3. The sealing ring 3 is sleeved on the circumferential outer surface of the arc-shaped barrel 6 and fits with its circumferential outer surface. The sealing ring 3 is slidably installed with the arc-shaped barrel 6, and the circumference of the sealing ring 3 The outer surface is provided with a discharge port, which is connected to the discharge port 601. The lower surface of the floating plate 16 is provided with a pit. The inner wall of the discharge port is slidably mounted with an arc-shaped discharge shell 18. The lower surface of the arc-shaped discharge shell 18 is penetrated with an outlet. The circumferential outer surface of the sealing ring 3 is fixedly mounted with a support 23. The inner wall of the support 23 is rotatably mounted with a rotating rod 19. The bottom end of the rotating rod 19 is fixedly mounted with the outer surface of the arc-shaped discharge shell 18. The top of the rotating rod 19 is fixedly mounted with an arc baffle 20. The arc baffle 20 and the arc discharge The center of the shell 18 is arranged to coincide with the rotation center of the rotating rod 19, and a plurality of insertion holes 602 are equidistantly provided on the inner wall of the arc-shaped barrel 6, and an insertion block 17 is slidably installed on the inner wall of each of the plurality of insertion holes 602, and a driving column 1701 is fixedly installed on the inner wall of the insertion block 17 near one end of the square sliding column 15, and a driving groove 1702 is penetrated through the outer surface of the square sliding column 15 near the top, and the driving column 1701 is slidably installed on the inner wall of the driving groove 1702, and the other end of the insertion block 17 penetrates the insertion hole 602 and abuts against the lower surface of the block 2902.

[0032] When the arc barrel 6 stops rotating for a distance, the end of the plug block 17 abuts against the lower surface of the block 2902, so that the block 2902 drives the arc slide plate 29 to slide upward along the arc groove 21. At this time, the outer surface of the arc slide plate 29 near the bottom leaves the end of the arc baffle 20. Because there is no obstruction of the arc slide plate 29, the arc baffle 20 pushes the arc discharge shell 18 out of the discharge port under the action of the water-soluble fertilizer liquid pressure. At this time, the outlet on the lower surface of the arc discharge shell 18 is opened, and the water-soluble fertilizer liquid inside the storage bin passes through the outlet and then flows into the storage barrel inside the placement barrel 4 through the guide groove 12. When the water-soluble fertilizer inside the storage bin is less, the floating plate 16 cannot rise to a sufficient height. At this time, the arc discharge shell 18 cannot be opened, and no water-soluble fertilizer liquid will flow out. The water-soluble fertilizer can be automatically metered and packaged by this device, which will greatly improve the efficiency of metering and packaging when the water-soluble fertilizer is metered and packaged in batches.

[0033] In this embodiment, an inlet and outlet 22 is provided on the circumferential outer surface of the sealing ring 3, and the arc baffle 20 is slidably installed on the inner wall of the inlet and outlet 22. A slide groove 301 is provided on the outer surface of one side of the sealing ring 3, and an arc groove 21 is also provided on the outer surface of one side of the sealing ring 3. An arc slide plate 29 is slidably installed on the inner wall of the arc groove 21. One end of the arc baffle 20 passes through the inner wall of the inlet and outlet 22 and abuts against the outer surface of the arc slide plate 29. A bayonet 2903 is provided on the inner wall of the arc groove 21 near the top, and a block 2902 is slidably installed on the inner wall of the bayonet 2903. The block 2902 is fixedly connected to the outer surface of the top of the arc slide plate 29, and a spring 30 is fixedly installed on the end face of the top of the arc slide plate 29. The top of the spring 30 is fixedly installed on the top wall of the arc groove 21, and the discharge port 601 is staggered from the slide groove 301. This setting prevents the water-soluble fertilizer liquid from leaking from the slide groove 301.

[0034] The end of the insert block 17 abuts against the lower surface of the clamping block 2902 , so that the clamping block 2902 drives the arc sliding plate 29 to slide upward along the arc groove 21 .

[0035] In this embodiment, an opening 2904 is provided on the circumferential outer surface of the sealing ring 3, and a shift block 2901 is slidably installed on the inner wall of the opening 2904. One end of the shift block 2901 is fixedly connected to the outer surface of the top of the arc slide 29, and a protrusion 2001 is provided at the bottom end of the arc slide 29. The upper surface of the arc baffle 20 is provided with a groove 2002 matching the protrusion 2001.

[0036] When the water-soluble fertilizer inside the storage bin gradually decreases, the float plate 16 will gradually move downward. At this time, the arc slide plate 29 will also move downward. When the protrusion 2001 at the bottom of the arc slide plate 29 slides into the inside of the groove 2002, the arc baffle 20 is restricted from sliding, and the arc-shaped discharge shell 18 can be kept in an open state. This device makes it easy for the water-soluble fertilizer to be discharged.

[0037] In this embodiment, a material guide groove 12 is fixedly installed on the circumferential outer surface of the sealing ring 3, and the material guide groove 12 is arranged directly below the discharge port. A placement barrel 4 is fixedly installed on the upper surface of the base 1, and a storage barrel is arranged inside the placement barrel 4, and the placement barrel 4 is arranged directly below the material guide groove 12.

[0038] The water-soluble fertilizer liquid in the storage bin flows through the outlet and then through the guide groove 12 into the storage barrel inside the placement barrel 4.

[0039] In this embodiment, an L-shaped feed pipe 7 is fixedly installed on the outer surface of one of the support plates 2 near the top, the bottom end of the L-shaped feed pipe 7 is inserted into the interior of one of the cylinders 5, and a feed hopper 8 is fixedly installed on the top of the L-shaped feed pipe 7. The feed hopper 8 is connected to the interior of the arc barrel 6 through the L-shaped feed pipe 7.

[0040] When in use, the operator adds a certain amount of water-soluble fertilizer liquid from the feed hopper 8, which enters the interior of the arc-shaped barrel 6 through the L-shaped feed pipe 7, and the amount of water-soluble fertilizer added does not exceed the height of the cylinder 5.

[0041] In this embodiment, a support plate 25 is fixedly installed on the end surface of the L-shaped feed pipe 7 near the bottom end, and an exhaust fan 24 is rotatably installed on the outer surface of the support plate 25 near the L-shaped feed pipe 7. One end of the exhaust fan 24 passes through the outer surface of the support plate 25 and is fixedly installed with a second gear 27. A first gear 26 is rotatably installed on the outer surface of one side of the support plate 25, and the first gear 26 is meshed with the second gear 27. An annular internal gear 28 is fixedly installed on the inner wall of one end of the arc barrel 6, and the annular internal gear 28 is meshed with the first gear 26. A driven gear 10 is fixedly installed on the circumferential outer surface of another cylinder 5, and a servo motor 9 is fixedly installed on the outer surface of one side of the support plate 2. The output end of the servo motor 9 passes through the outer surface of the support plate 2 and is fixedly installed with a drive gear 11, which is meshed with the driven gear 10. The other end of the other cylinder 5 passes through the outer surface of the support plate 2 and is fixedly installed with a cover plate.

[0042] Through the rotation of the arc barrel 6, the annular inner gear 28 drives the exhaust fan 24 to rotate through the first gear 26 and the second gear 27. The rotation of the exhaust fan 24 puts the interior of the arc barrel 6 in a negative pressure state. Due to the existence of the negative pressure state, external air will enter the arc barrel 6 through the outlet on the lower surface of the arc discharge shell 18. Due to the large negative pressure, the arc discharge shell 18 will be driven to retract into the inside of the discharge port, and then the arc slide plate 29 will continue to move down to the bottom to resist the arc baffle 20 again. Through this device, it is convenient to continuously measure and pack the water-soluble fertilizer.

[0043] It should be noted that when the present invention is used, the operator adds a certain amount of water-soluble fertilizer liquid from the feed hopper 8, which enters the interior of the arc-shaped barrel 6 through the L-shaped feed pipe 7, and the amount of water-soluble fertilizer added does not exceed the height of the cylinder 5;

[0044] The servo motor 9 drives the driving gear 11 to rotate in a certain angle, and the driving gear 11 drives the arc barrel 6 to rotate in a certain angle through the driven gear 10 and one of the cylinders 5;

[0045] When the arc barrel 6 rotates an angle, the partition 13 inside it will bring part of the water-soluble fertilizer liquid into the storage bin. When the arc barrel 6 stops rotating, since there is water-soluble fertilizer liquid inside the storage bin, the water-soluble fertilizer liquid will drive the float 16 to rise. The float 16 drives the plug 17 to move in the direction close to the sealing ring 3 through the driving column 1701 and the driving groove 1702, so that one end of the plug 17 moves to the inside of the slide groove 301. When the arc barrel 6 stops rotating for a distance, the end of the plug 17 abuts against the lower surface of the block 2902, so that the block 2902 drives the arc slide 29 to slide upward along the arc groove 21. At this time, the outer surface of the arc slide 29 near the bottom is away from the arc slide 29. The end of the arc baffle 20 is opened. Because the arc baffle 20 is not blocked by the arc slide plate 29, the arc discharge shell 18 is pushed out of the discharge port under the pressure of the water-soluble fertilizer liquid. At this time, the outlet on the lower surface of the arc discharge shell 18 is opened, and the water-soluble fertilizer liquid inside the storage bin passes through the outlet and then flows into the storage barrel inside the placement barrel 4 through the guide groove 12. When the water-soluble fertilizer inside the storage bin is less, the floating plate 16 cannot be raised to a sufficient height. At this time, the arc discharge shell 18 cannot be opened, and no water-soluble fertilizer liquid will flow out. The device can automatically measure and pack the water-soluble fertilizer, and the efficiency of measuring and packing can be greatly improved when the water-soluble fertilizer is measured and packed in batches.

[0046] When the water-soluble fertilizer inside the storage bin gradually decreases, the floating plate 16 will gradually move down, and at this time, the arc slide plate 29 will also move down accordingly. When the protrusion 2001 at the bottom of the arc slide plate 29 slides into the inside of the groove 2002, the arc baffle 20 is restricted from sliding, and the arc-shaped discharge housing 18 can be kept in an open state. Through this device, the water-soluble fertilizer can be discharged cleanly;

[0047] When the arc barrel 6 continues to rotate to the next angle, the rotation of the arc barrel 6 causes the annular inner gear 28 to drive the exhaust fan 24 to rotate through the first gear 26 and the second gear 27. The rotation of the exhaust fan 24 causes the interior of the arc barrel 6 to be in a negative pressure state. Due to the existence of the negative pressure state, external air will enter the arc barrel 6 through the outlet on the lower surface of the arc discharge shell 18. Due to the large negative pressure, the arc discharge shell 18 will be driven to retract into the interior of the discharge port, and then the arc slide plate 29 will continue to move down to the bottom to resist the arc baffle 20 again. This device facilitates continuous metering and packaging of water-soluble fertilizers.

[0048] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A water-soluble fertilizer automatic metering and packaging device, comprising a base (1), characterized in that: Two support plates (2) are symmetrically fixedly mounted on the upper surface of the base (1), and cylinders (5) are rotatably mounted on the outer surfaces of the adjacent sides of the top ends of the two support plates (2). An arc barrel (6) is fixedly mounted between the two cylinders (5), and the arc barrel (6) is arranged in a spindle shape. The adjacent ends of the two cylinders (5) penetrate the end surface of the arc barrel (6) and are connected with the interior thereof. A plurality of partitions (13) are fixedly mounted on the inner wall of the arc barrel (6) at equal intervals, and a material storage bin is arranged between the partitions (13) and the inner wall of the arc barrel (6). A plurality of fixed plates (14) are fixedly mounted on the inner wall of the arc barrel (6) at equal intervals, and square slide columns (15) are slidably inserted on the upper surfaces of the plurality of fixed plates (14). The bottom ends of the square slide columns (15) penetrate the lower surface of the fixed plates (14) and are fixedly mounted with a floating plate (16), and the floating plate (16) is arranged on the inner wall of the material storage bin. Inside, the inner wall of the arc-shaped barrel (6) is equidistantly penetrated with a plurality of discharge ports (601), the upper surface of the base (1) is fixedly mounted with a sealing ring (3), the sealing ring (3) is sleeved on the circumferential outer surface of the arc-shaped barrel (6) and fits with the circumferential outer surface thereof, the sealing ring (3) and the arc-shaped barrel (6) are slidably mounted, the circumferential outer surface of the sealing ring (3) is provided with a discharge port, the discharge port is communicated with the discharge port (601), the lower surface of the floating plate (16) is provided with a pit, the circumferential outer surface of the sealing ring (3) is fixedly mounted with a support (23), the inner wall of the support (23) is rotatably mounted with a rotating rod (19), the outer surface of one side of the sealing ring (3) is provided with an arc groove (21), the inner wall of the arc groove (21) is slidably mounted with an arc slide plate (29), and the outer surface of the square sliding column (15) near the top is penetrated with a driving groove (1702).

2. The automatic metering and packaging device for water-soluble fertilizer according to claim 1, characterized in that: An arc-shaped discharge shell (18) is slidably mounted on the inner wall of the discharge port, an outlet is penetrated through the lower surface of the arc-shaped discharge shell (18), the bottom end of the rotating rod (19) is fixedly mounted on the outer surface of the arc-shaped discharge shell (18), and an arc-shaped baffle (20) is fixedly mounted on the top end of the rotating rod (19), and the center of the arc-shaped baffle (20) and the arc-shaped discharge shell (18) coincides with the rotation center of the rotating rod (19).

3. The automatic metering and packaging device for water-soluble fertilizer according to claim 2, characterized in that: The sealing ring (3) is provided with an inlet and outlet (22) on its circumferential outer surface, the arc baffle (20) is slidably mounted on the inner wall of the inlet and outlet (22), a slide groove (301) is provided on the outer surface of one side of the sealing ring (3), one end of the arc baffle (20) penetrates through the inner wall of the inlet and outlet (22) and abuts against the outer surface of the arc slide plate (29), a bayonet (2903) is provided on the inner wall near the top of the arc groove (21), a clamping block (2902) is slidably mounted on the inner wall of the bayonet (2903), the clamping block (2902) is fixedly connected to the outer surface of the top of the arc slide plate (29), a spring (30) is fixedly mounted on the end surface of the top of the arc slide plate (29), the top of the spring (30) is fixedly mounted on the top wall of the arc groove (21), and the discharge port (601) is arranged to be staggered from the slide groove (301).

4. The automatic metering and packaging device for water-soluble fertilizer according to claim 3, characterized in that: The inner wall of the arc-shaped barrel (6) is provided with a plurality of equidistant insertion holes (602), and the inner walls of the plurality of insertion holes (602) are all slidably mounted with insertion blocks (17), and the inner wall of the insertion block (17) close to one end of the square sliding column (15) is fixedly mounted with a driving column (1701), and the driving column (1701) is slidably mounted with the inner wall of the driving groove (1702), and the other end of the insertion block (17) passes through the insertion hole (602) and abuts against the lower surface of the clamping block (2902).

5. The automatic metering and packaging device for water-soluble fertilizer according to claim 3 is characterized in that: The sealing ring (3) is provided with an opening (2904) on its circumferential outer surface, a shifting block (2901) is slidably mounted on the inner wall of the opening (2904), one end of the shifting block (2901) is fixedly connected to the outer surface of the top end of the circular arc slide plate (29), a protrusion (2001) is provided at the bottom end of the circular arc slide plate (29), and a groove (2002) matching the protrusion (2001) is provided on the upper surface of the circular arc baffle (20).

6. The automatic metering and packaging device for water-soluble fertilizer according to claim 1, characterized in that: A material guide groove (12) is fixedly mounted on the circumferential outer surface of the sealing ring (3), and the material guide groove (12) is arranged directly below the discharge port. A placement barrel (4) is fixedly mounted on the upper surface of the base (1), and a storage barrel is arranged inside the placement barrel (4), and the placement barrel (4) is arranged directly below the material guide groove (12).

7. The automatic metering and packaging device for water-soluble fertilizer according to claim 1, characterized in that: An L-shaped feed pipe (7) is fixedly mounted on the outer surface of one of the support plates (2) near the top end, the bottom end of the L-shaped feed pipe (7) is inserted into the interior of one of the cylinders (5), and a feed hopper (8) is fixedly mounted on the top end of the L-shaped feed pipe (7), and the feed hopper (8) is connected to the interior of the arc-shaped barrel (6) through the L-shaped feed pipe (7).

8. The automatic metering and packaging device for water-soluble fertilizer according to claim 7, characterized in that: A support plate (25) is fixedly mounted on the end surface of the L-shaped feed pipe (7) near the bottom end, an exhaust fan (24) is rotatably mounted on the outer surface of the support plate (25) near the L-shaped feed pipe (7), one end of the exhaust fan (24) passes through the outer surface of the support plate (25) and is fixedly mounted with a second gear (27), a first gear (26) is rotatably mounted on the outer surface of one side of the support plate (25), the first gear (26) meshes with the second gear (27), and an inner wall of one end of the arc-shaped barrel (6) is fixedly mounted with an annular internal gear (2 8), the annular inner gear (28) meshes with the first gear (26), a driven gear (10) is fixedly mounted on the circumferential outer surface of the other cylinder (5), a servo motor (9) is fixedly mounted on the outer surface of one side of the support plate (2), an output end of the servo motor (9) passes through the outer surface of the support plate (2) and a driving gear (11) is fixedly mounted thereon, the driving gear (11) meshes with the driven gear (10), and a cover plate is fixedly mounted on the other end of the other cylinder (5) passing through the outer surface of the support plate (2).

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