Automatic water-soluble fertilizer dispensing and metering device

Abstract

The utility model discloses a kind of water-soluble fertilizer automatic subpackaging metering devices, belong to fertilizer subpackaging equipment technical field.Device includes mixing barrel and motor, its stirring mechanism is located in mixing barrel, including with motor connection driving shaft and annular shell set in the outside of driving shaft;Driving shaft outer wall is equipped with sliding block, annular shell inner wall is equipped with oblique sliding groove, driving shaft is via the cooperation of sliding block and sliding groove, reciprocate up and down while rotating, drive stirring rod to realize three-dimensional stirring.Device bottom is also equipped with cleaning mechanism, by rotating the sleeve outside discharge nozzle, can drive scraper to remove the agglomerate of discharge nozzle inner wall.The utility model passes through composite motion stirring, effectively solve the problem that water-soluble fertilizer mixes unevenly, significantly improve fertilizer liquor uniformity;And through the cleaning mechanism of convenience, solve the problem that discharge nozzle is blocked due to residual and affects the accuracy of metering, structure is ingenious, and practicality is strong.

Description

Technical Field

[0001] This utility model relates to the field of agricultural engineering technology, and in particular to an automatic dispensing and metering device for water-soluble fertilizer. Background Technology

[0002] Water-soluble fertilizers, due to their rapid solubility and high efficiency, are widely used in modern agricultural production, especially in facility agriculture and precision irrigation. To ensure fertilization effectiveness and save costs, precise automated dispensing and metering of water-soluble fertilizers is a crucial step. Currently, common automated dispensing devices for water-soluble fertilizers typically include a mixing tank for dissolving the fertilizer, and a stirring mechanism within the tank mixes the solid fertilizer with water to form a homogeneous fertilizer solution.

[0003] In existing technical solutions, the stirring mechanism mostly uses a motor to drive the stirring rod in a single rotational motion. Although this stirring method can make most of the fertilizer solution flow, it has obvious shortcomings in practical applications. When the stirring rod rotates only on a fixed horizontal plane, eddies are easily formed inside the mixing tank, resulting in a large difference in stirring intensity between the central area of ​​the tank and the edge of the tank wall.

[0004] Especially for fertilizer granules with higher density or lower solubility, they easily settle and accumulate in the central area or corners of the container where the centrifugal force is weaker, creating "dead zones" for mixing. This phenomenon results in uneven concentration of the final fertilizer solution in both the vertical and horizontal directions; the upper layer of fertilizer solution is thinner, while the concentration at the bottom accumulation area is higher. When this non-uniform fertilizer solution is dispensed and metered, even if the volume is the same each time, the effective fertilizer components contained within will vary significantly, directly affecting the precision of fertilization and failing to meet the stringent requirements of precision fertilization in modern agriculture.

[0005] Therefore, this utility model proposes an automatic dispensing and metering device for water-soluble fertilizer to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the problems in the existing automatic dispensing and metering devices for water-soluble fertilizers, the stirring mechanism can only perform a single planar rotational motion, which easily forms a stirring dead zone in the mixing tank, resulting in insufficient dissolution and mixing of fertilizer, uneven fertilizer concentration, and ultimately affecting the accuracy of dispensing and metering. The present invention aims to provide an automatic dispensing and metering device for water-soluble fertilizers with an improved structure that can effectively solve the above problems.

[0007] This utility model provides an automatic dispensing and metering device for water-soluble fertilizer, including: a mixing tank, a support plate disposed on the upper part of the mixing tank, and a motor fixedly connected to the support plate; and a stirring mechanism disposed inside the mixing tank.

[0008] The stirring mechanism includes a square shaft that is driven and connected to the output end of the motor, a drive shaft that is sleeved outside the square shaft and rotates synchronously with it, and an annular shell that is fixedly connected to the lower surface of the support plate and sleeved outside the drive shaft.

[0009] Furthermore, a slider is fixedly connected to the outer wall of the drive shaft, and a sliding groove for the slider to slide is provided on the inner wall of the annular shell. The lower end of the drive shaft is detachably connected to the upper end of the stirring shaft through a connecting ring. A stirring rod is fixedly connected to the outer periphery of the stirring shaft. Through the sliding cooperation between the slider on the drive shaft and the sliding groove on the inner wall of the annular shell, the stirring shaft and the stirring rod are driven to perform axial motion of up and down reciprocating while rotating.

[0010] Preferably, the automatic water-soluble fertilizer dispensing and metering device further includes a cleaning mechanism located at the bottom of the mixing tank. The cleaning mechanism includes a discharge nozzle communicating with the mixing tank. A sleeve is rotatably connected to the outside of the discharge nozzle. A connecting plate is fixedly connected to the lower end of the sleeve. A scraper for scraping off residues from the inner wall of the discharge nozzle is fixedly connected to the connecting plate.

[0011] Preferably, an annular groove is formed on the outer wall of the discharge nozzle, and a limiting ring is fixedly connected to the inner wall of the sleeve, the limiting ring being slidably fitted in the annular groove on the outer wall of the discharge nozzle.

[0012] Preferably, the device further includes a back plate, on the front side wall of which a support block one for supporting the mixing tank and a support block two for supporting the discharge nozzle are fixedly connected.

[0013] Preferably, the sliding groove is an annular groove that obliquely surrounds the inner wall of the annular shell.

[0014] Preferably, the connection between the drive shaft and the stirring shaft is a detachable threaded connection, the connecting ring is a collar with internal threads, and both the lower end of the drive shaft and the upper end of the stirring shaft are provided with external threads that cooperate with it.

[0015] Preferably, at least two stirring rods are fixedly connected to the stirring shaft along its length, and the stirring rods are distributed in a spiral shape.

[0016] Preferably, the device further includes a placement plate, which is horizontally positioned directly below the discharge nozzle and fixedly connected to the lower part of the back plate.

[0017] This utility model has the following beneficial effects:

[0018] 1. This utility model, by setting a motor to drive the active shaft to rotate, and utilizing the cooperation between the slider on the active shaft and the inclined sliding groove opened on the inner wall of the annular shell, enables the stirring rod to perform axial motion up and down while rotating and stirring. This solves the problems of the single stirring method, easy generation of stirring dead corners, and insufficient and uneven mixing of water-soluble fertilizers in the prior art. It achieves the technical effect of stirring materials in all directions without dead corners, and greatly improves the mixing uniformity of fertilizer solution.

[0019] 2. This utility model solves the problem in the prior art where the discharge nozzle is easily clogged by material residue after long-term use, thus affecting the accuracy of dispensing and metering, by setting a manually rotatable sleeve on the outside of the discharge nozzle. The sleeve drives the scraper to rotate inside the discharge nozzle through the connecting plate. This achieves the technical effect of convenient and efficient cleaning of the discharge nozzle without disassembly, ensuring smooth discharge and accurate metering, and improving the long-term reliability of the equipment.

[0020] 3. This utility model integrates a composite motion stirring mechanism with a manual anti-clogging cleaning mechanism, and uses components such as a back plate and support blocks to construct a stable and reliable overall support frame, making it compact, functionally clear, and easy to operate. It solves the two core problems of material mixing uniformity and output metering accuracy, and has high practical value. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of an automatic dispensing and metering device for water-soluble fertilizer proposed in this utility model;

[0022] Figure 2 This is a schematic diagram of the placement plate of an automatic dispensing and metering device for water-soluble fertilizer proposed in this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 This is a schematic diagram of the stirring rod structure of an automatic dispensing and metering device for water-soluble fertilizer proposed in this utility model.

[0025] Legend:

[0026] 1. Back plate; 2. Support block one; 3. Mixing bucket; 4. Support plate; 5. Motor; 6. Support block two; 7. Placement plate; 8. Mixing mechanism; 81. Square shaft; 82. Annular shell; 83. Drive shaft; 831. Slider; 832. Sliding groove; 84. Connecting ring; 85. Mixing shaft; 86. Mixing rod; 9. Cleaning mechanism; 91. Discharge nozzle; 92. Sleeve; 93. Limiting ring; 94. Connecting plate; 95. Scraper. Detailed Implementation

[0027] Example:

[0028] Reference Figures 1 to 4 This utility model provides an automatic water-soluble fertilizer dispensing and metering device, which aims to solve the problems in the prior art where insufficient mixing of water-soluble fertilizer leads to uneven fertilizer concentration, and the discharge nozzle 91 is prone to clumping and blockage, affecting the accuracy of dispensing and metering.

[0029] like Figure 1 As shown, the automatic dispensing and metering device for water-soluble fertilizer includes a back plate 1 as an overall support frame. A support block 2 for supporting the mixing tank 3 is fixedly connected to the front side wall of the back plate 1. The mixing tank 3 is stably installed on the back plate 1 through the support block 2. A support plate 4 is detachably connected to the top of the mixing tank 3. A motor 5 for providing power for the entire mixing process is fixedly connected to the support plate 4.

[0030] The stirring mechanism 8 is installed inside the mixing tank 3. The stirring mechanism 8 can realize the combined rotation and axial reciprocating motion of the stirring components, so as to stir the materials in the mixing tank 3 without dead angles.

[0031] Specifically, such as Figure 1 and Figure 4 As shown, the stirring mechanism 8 includes a square shaft 81 that is connected to the output end of the motor 5. An active shaft 83 is sleeved on the outside of the square shaft 81. The active shaft 83 rotates synchronously with the square shaft 81. An annular shell 82, which is fixedly connected to the lower surface of the support plate 4, is sleeved on the outside of the active shaft 83. A slider 831 is fixedly connected to the outer wall of the active shaft 83. A sliding groove 832 for the slider 831 to slide is opened on the inner wall of the annular shell 82. The sliding groove 832 is an annular groove that is obliquely encircling the inner wall of the annular shell 82. When the motor 5 drives the square shaft 81 and the active shaft 83 to rotate, the slider 831 will move in a circle along the trajectory of the oblique sliding groove 832. This structure enables the active shaft 83 to rotate stably while also periodically performing up-and-down axial motion.

[0032] At the lower end of the drive shaft 83, the upper end of the stirring shaft 85 is detachably connected via a connecting ring 84. The connecting ring 84 is a collar with internal threads. Both the lower end of the drive shaft 83 and the upper end of the stirring shaft 85 are provided with matching external threads. The two can be quickly installed and disassembled by screwing. A stirring rod 86 is fixedly connected to the outer circumference of the stirring shaft 85. At least two stirring rods 86 are fixedly connected to the stirring shaft 85 along its length, and the stirring rods 86 are distributed in a spiral shape. Thus, when the drive shaft 83 performs a combined rotation and lifting motion, it can drive the entire stirring shaft 85 and stirring rods 86 to achieve full and uniform stirring of the water-soluble fertilizer in the mixing tank 3.

[0033] Reference Figure 1 , Figure 2 and Figure 3 The cleaning mechanism 9 includes a discharge nozzle 91 that communicates with the bottom of the mixing tank 3. The discharge nozzle 91 is stably supported by a support block 6 fixedly connected to the back plate 1. A sleeve 92 is rotatably connected to the outside of the discharge nozzle 91. A connecting plate 94 is fixedly connected to the lower end of the sleeve 92. A scraper 95 is fixedly connected to the connecting plate 94. The cutting edge of the scraper 95 is in close contact with the inner wall and bottom outlet of the discharge nozzle 91.

[0034] To achieve stable rotation of the sleeve 92 outside the discharge nozzle 91, an annular groove is provided on the outer wall of the discharge nozzle 91, and a limiting ring 93 is fixedly connected to the inner wall of the sleeve 92. In the assembled state, the limiting ring 93 is slidably fitted in the annular groove on the outer wall of the discharge nozzle 91. This sliding fit structure between the limiting ring 93 and the groove allows the sleeve 92 to rotate freely while applying reliable axial limiting to the sleeve 92 to prevent it from moving up and down.

[0035] When cleaning is required, the sleeve 92 is rotated manually. The sleeve 92 drives the scraper 95 to rotate synchronously via the connecting plate 94, thereby scraping off the material residue and clumps adhering to the inner wall and bottom of the discharge nozzle 91, ensuring the smooth flow of the discharge channel and the accuracy of subsequent dispensing and metering.

[0036] In addition, in order to receive the solution flowing out of the outlet 91, the device also includes a placement plate 7, which is horizontally positioned directly below the outlet 91 and fixedly connected to the lower part of the back plate 1 for placing dispensing containers.

[0037] As a preferred embodiment, to make the composite motion trajectory of the stirring mechanism 8 more stable and precise, please refer to... Figure 4 The sliding groove 832 opened on the inner wall of the annular shell 82 is an annular groove that runs obliquely around the inner wall of the annular shell 82. The drive shaft 83 is able to perform axial motion up and down while rotating with the square shaft 81 by sliding the slider 831 on its outer wall in the sliding groove 832. This structural design simplifies the transmission relationship and improves the reliability of operation.

[0038] As another preferred embodiment, for ease of maintenance and replacement of the stirring assembly, please refer to... Figure 4 The connecting ring 84 between the drive shaft 83 and the stirring shaft 85 is specifically a collar with internal threads. At the same time, the lower end of the drive shaft 83 and the upper end of the stirring shaft 85 are provided with external threads that cooperate with them. The detachable connection between the drive shaft 83 and the stirring shaft 85 can be achieved by screwing, which is convenient to operate.

[0039] For a specific configuration of the 86-type stirring rod, please refer to [the relevant documentation] to improve stirring efficiency and uniformity. Figure 4At least two stirring rods 86 are fixedly connected to the stirring shaft 85 along its length, and the stirring rods 86 are arranged in a spiral shape. This arrangement can produce a more complex shearing and tumbling effect on the material when the stirring rods 86 rotate and rise and fall.

[0040] As a preferred limiting structure, to ensure the smooth rotation of the sleeve 92 in the cleaning mechanism 9, please refer to... Figure 3 An annular groove is provided on the outer wall of the discharge nozzle 91, and a limiting ring 93 is fixedly connected to the inner wall of the sleeve 92. The limiting ring 93 slides in the annular groove on the outer wall of the discharge nozzle 91 to precisely limit the axial movement of the sleeve 92.

[0041] As a preferred overall support solution, please refer to Figure 1 The front side wall of the back plate 1 of the device is not only fixedly connected to the support block 2 for supporting the mixing tank 3, but also fixedly connected to the support block 6 for supporting the discharge nozzle 91. At the same time, the placement plate 7 for receiving the container is also fixedly connected to the lower part of the back plate 1 and is horizontally set directly below the discharge nozzle 91. These support components together constitute a stable and reliable overall frame of the device.

[0042] The working principle is as follows:

[0043] When the device needs to stir water-soluble fertilizer, the motor 5 starts and drives the square shaft 81 connected to it to rotate. Since the drive shaft 83 is sleeved on the outside of the square shaft 81, the drive shaft 83 rotates synchronously. While the drive shaft 83 rotates, the slider 831 fixed on its outer wall moves along the trajectory of the sliding groove 832 that is obliquely surrounded on the inner wall of the fixed annular shell 82. This structure forces the drive shaft 83 to perform periodic up-and-down reciprocating axial motion while performing circular rotation. This composite motion is transmitted to the stirring shaft 85 and the stirring rod 86 fixed on it through the connecting ring 84, thereby realizing the three-dimensional stirring of the stirring rod 86 in the mixing tank 3. Through this synergistic effect of the stirring mechanism 8 and the various components, this utility model effectively solves the problem of uneven fertilizer solution caused by insufficient stirring in the prior art.

[0044] When the device discharges material for an extended period, and the discharge nozzle 91 becomes clogged due to material residue, the sleeve 92 located outside the discharge nozzle 91 can be manually rotated. Since the lower end of the sleeve 92 is fixedly connected to the connecting plate 94, and the connecting plate 94 is fixedly mounted with a scraper 95, the rotation of the sleeve 92 will drive the scraper 95 to rotate synchronously. The cutting edge of the scraper 95 is in close contact with the inner wall and bottom of the discharge nozzle 91, and its rotational motion can effectively scrape off the residual clumps. During this process, the cooperation between the limiting ring 93 and the groove on the outer wall of the discharge nozzle 91 ensures the stability of the rotation of the sleeve 92. Through this structural design of the cleaning mechanism 9, this utility model solves the problem of inaccurate dispensing and metering caused by the blockage of the discharge nozzle 91 in the prior art.

Claims

1. An automatic dispensing and metering device for water-soluble fertilizer, comprising a mixing tank (3), a support plate (4) disposed on the upper part of the mixing tank (3), and a motor (5) fixedly connected to the support plate (4); Its features are, The automatic dispensing and metering device for water-soluble fertilizer also includes a stirring mechanism (8), which is located inside the mixing tank (3); The stirring mechanism (8) includes: A square shaft (81) is connected to the output end of the motor (5) via a transmission connection. An annular shell (82) is fixedly connected to the lower surface of the support plate (4). A drive shaft (83) is sleeved on the outside of the square shaft (81) and rotates synchronously with it. A slider (831) is fixedly connected to the outer wall of the drive shaft (83). A sliding groove (832) for sliding the slider (831) is opened on the inner wall of the annular shell (82). A stirring shaft (85) is detachably connected to the lower end of the drive shaft (83) via a connecting ring (84). A stirring rod (86) is fixedly connected to the outer periphery of the stirring shaft (85).

2. The automatic dispensing and metering device for water-soluble fertilizer according to claim 1, characterized in that, The device also includes a cleaning mechanism (9), which is located at the bottom of the mixing tank (3). The cleaning mechanism (9) includes a discharge nozzle (91) communicating with the mixing tank (3). A sleeve (92) is rotatably connected to the outside of the discharge nozzle (91). A connecting plate (94) is fixedly connected to the lower end of the sleeve (92). A scraper (95) for scraping off the residue on the inner wall of the discharge nozzle (91) is fixedly connected to the connecting plate (94).

3. The automatic dispensing and metering device for water-soluble fertilizer according to claim 2, characterized in that, An annular groove is provided on the outer wall of the discharge nozzle (91), and a limiting ring (93) is fixedly connected to the inner wall of the sleeve (92). The limiting ring (93) is slidably fitted in the annular groove on the outer wall of the discharge nozzle (91) to axially limit the sleeve (92).

4. The automatic dispensing and metering device for water-soluble fertilizer according to claim 2, characterized in that, The device also includes a back plate (1), on the front side wall of which a support block one (2) for supporting the mixing tank (3) and a support block two (6) for supporting the discharge nozzle (91) are fixedly connected.

5. The automatic dispensing and metering device for water-soluble fertilizer according to claim 1, characterized in that, The sliding groove (832) is an annular groove that is obliquely encircling the inner wall of the annular shell (82). The drive shaft (83) slides in the sliding groove (832) via the slider (831), thereby realizing axial movement of reciprocating up and down while rotating with the square shaft (81).

6. The automatic dispensing and metering device for water-soluble fertilizer according to claim 1, characterized in that, The connecting ring (84) is a collar with internal threads. The lower end of the drive shaft (83) and the upper end of the stirring shaft (85) are both provided with external threads that cooperate with it. The detachable connection between the drive shaft (83) and the stirring shaft (85) is achieved by screwing.

7. The automatic dispensing and metering device for water-soluble fertilizer according to claim 1, characterized in that, The stirring shaft (85) is fixedly connected with at least two stirring rods (86) along its length, and the stirring rods (86) are distributed in a spiral shape.

8. The automatic dispensing and metering device for water-soluble fertilizer according to claim 4, characterized in that, The device also includes a placement plate (7), which is horizontally positioned directly below the discharge nozzle (91) and fixedly connected to the lower part of the back plate (1).

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