A specific gravity adjusting device for a seedling raising substrate

Abstract

The utility model discloses a specific gravity adjusting device for seedling substrate, including mixing cylinder, the outside of mixing cylinder is equipped with two support seat, two support seat side close to each other all are equipped with bunker, the outer surface fixed connection of mixing cylinder has the support vertical board, the bottom surface fixed mounting of support vertical board has volume sensor, volume sensor is located the top of mixing cylinder, two support seat side close to each other together fixed connection has arc support board, the top of arc support board is equipped with a plurality of weighing assembly, two bunker's outer surface all fixed mounting has vibration motor. The specific gravity adjusting device for seedling substrate, through the cooperation of volume sensor and weighing assembly, cooperate with PLC controller simultaneously, can calculate substrate specific gravity in real time, and regulate and control injection electric valve's opening and closing, can make raw materials from the inside of bunker automatic addition to the inside of mixing cylinder, improve the injection speed when specific gravity regulation.

Description

Technical Field

[0001] This utility model relates to the field of seedling substrates, and in particular to a specific gravity adjustment device for seedling substrates. Background Technology

[0002] Seedling substrate is a specialized cultivation medium used to support seedling growth, provide nutrients, and create a breathable and water-retaining environment. It is usually made up of natural or artificial materials such as peat moss, vermiculite, perlite, and coconut coir mixed in a certain proportion. Its physical properties directly affect the development of seedling roots, and specific gravity, as a key indicator, needs to be adjusted according to different crop varieties, seedling stages, and growth environments. For example, leafy vegetable seedlings require a lighter substrate to ensure aeration, while solanaceous crops require a slightly higher specific gravity to enhance fertilizer retention.

[0003] In current seedling substrate production, specific gravity adjustment relies heavily on manual operation. Workers judge the raw material ratio based on experience, manually add light or heavy components, and then sample and test after stirring. However, manual feeding has poor accuracy, and repeated specific gravity adjustment is troublesome, reducing the efficiency of specific gravity adjustment in seedling substrate production. To address these issues, we propose a specific gravity adjustment device for seedling substrates. Utility Model Content

[0004] The purpose of this invention is to provide a specific gravity adjustment device for seedling substrate to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A specific gravity adjustment device for seedling substrate includes a mixing cylinder. Two support bases are provided on the outside of the mixing cylinder. A hopper is located on one side of each support base that is close to the other. A support plate is fixedly connected to the outer surface of the mixing cylinder. A volume sensor is fixedly installed on the bottom surface of the support plate, located above the mixing cylinder. An arc-shaped support plate is fixedly connected to the side of each support base that is close to the other. Multiple weighing components are located above the arc-shaped support plate. A vibration motor is fixedly installed on the outer surface of each of the two hoppers. A support block is fixedly connected to the side of each support base that is close to the other. A spring is fixedly connected to the upper surface of each support block, and the top ends of the two springs are fixedly connected to the bottom surfaces of the two hoppers, respectively.

[0007] In a further embodiment, the upper surfaces of both support bases are provided with limiting grooves, the inner walls of both limiting grooves are slidably connected to limiting sliders, and the sides of the two limiting sliders that are close to each other are respectively fixedly connected to the outer surfaces of the two hoppers.

[0008] In a further embodiment, the bottom surfaces of both hoppers are fixedly connected to injection pipes, the outer surfaces of both injection pipes are fixedly connected to injection electric valves, the bottom surface of the mixing cylinder is fixedly connected to a discharge pipe, the outer surface of the discharge pipe is fixedly connected to a discharge electric valve, both the discharge electric valve and the injection electric valve are electric rotary valves, and the bottom surface of the arc-shaped support plate is fixedly connected to a support base.

[0009] In a further embodiment, each of the weighing components includes a support cylinder fixedly connected to the upper surface of an arc-shaped support plate, a pressure sensor fixedly installed on the inner bottom wall of each support cylinder, and a plurality of detection pillars fixedly connected to the outer surface of the mixing cylinder, with the detection end of each pressure sensor contacting the bottom end of each detection pillar.

[0010] In a further embodiment, a variable frequency motor is fixedly installed on the bottom surface of the mixing cylinder, a stirring rod is fixedly installed on the output end of the variable frequency motor, a plurality of stirring blades are fixedly connected to the outer surface of the stirring rod, and a PLC controller is fixedly installed on one side of the supporting plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention, through the coordinated operation of a volume sensor and a weighing component, along with a PLC controller, can calculate the substrate specific gravity in real time and control the opening and closing of the electric injection valve. This allows the raw materials to be automatically added from the hopper into the mixing drum. In addition, the hopper is equipped with a vibration feeding structure using a vibrating motor and springs, which prevents the raw materials from clumping and clogging. This allows the raw materials to be injected into the mixing drum quickly, facilitating the adjustment of their specific gravity. This solves the problem of workers relying on experience to judge the raw material ratio and manually adding light or heavy substrates, which is cumbersome. It improves the injection speed during specific gravity adjustment and enhances the efficiency of specific gravity adjustment in seedling substrate production. Attached Figure Description

[0013] Figure 1 A three-dimensional structural diagram of a gravity adjustment device used for seedling substrate, viewed from the front.

[0014] Figure 2 This is a rear-view three-dimensional structural diagram of the gravity adjustment device used for seedling substrate;

[0015] Figure 3 A top-view cross-sectional view of a gravity adjustment device used for seedling substrate;

[0016] Figure 4 This is a side sectional view of a gravity adjustment device used for seedling substrate.

[0017] In the diagram: 1. Support base; 2. Mixing cylinder; 3. Hopper; 4. Support plate; 5. PLC controller; 6. Weighing assembly; 601. Support cylinder; 602. Pressure sensor; 603. Detection column; 7. Arc-shaped support plate; 8. Variable frequency motor; 9. Discharge pipe; 10. Stirring blade; 11. Stirring rod; 12. Discharge electric valve; 13. Volume sensor; 14. Support block; 15. Spring; 16. Limit slider; 17. Limit groove; 18. Support base; 19. Injection pipe; 20. Vibration motor; 21. Injection electric valve. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0019] In terms of circuit structure, the drive and control circuits of this utility model are common and mature technologies. Those skilled in the art can select appropriate circuit components to build the circuit according to the power requirements and control requirements of the equipment. For the power supply components, common general power supply equipment on the market can be used, as long as the voltage and current requirements of the equipment are met. No special design is required. In addition, the electrical components in this application are all common electrical equipment in the prior art. This application will not elaborate on their models or internal structures.

[0020] 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.

[0021] Please see Figures 1-4In this utility model, a specific gravity adjustment device for seedling substrate includes a mixing cylinder 2. Two support bases 1 are provided on the outside of the mixing cylinder 2. A hopper 3 is provided on each side of the two support bases 1 that are close to each other. A support plate 4 is fixedly connected to the outer surface of the mixing cylinder 2. A volume sensor 13 is fixedly installed on the bottom surface of the support plate 4. The volume sensor 13 scans the surface contour of the substrate inside the mixing cylinder 2 by emitting laser or ultrasonic waves. An internal chip calculates the volume of the space enclosed by the contour and the cylinder wall, and transmits the data to a PLC controller 5 in real time, providing volume parameters for specific gravity calculation and achieving non-contact measurement. The volume sensor 13 is located above the mixing cylinder 2, and the two support bases... 1. An arc-shaped support plate 7 is fixedly connected to one side of the two hoppers 3. Multiple weighing components 6 are provided above the arc-shaped support plate 7. Vibration motors 20 are fixedly installed on the outer surfaces of the two hoppers 3. Support blocks 14 are fixedly connected to one side of the two support bases 1. Springs 15 are fixedly connected to the upper surfaces of the two support blocks 14. The tops of the two springs 15 are fixedly connected to the bottom surfaces of the two hoppers 3 respectively. Through the coordinated cooperation of the volume sensor 13 and the weighing components 6, and in cooperation with the PLC controller 5, the specific gravity of the matrix can be calculated in real time, and the opening and closing of the electric valve 21 can be controlled, so that the raw materials can be automatically added from the inside of the hopper 3 into the inside of the mixing cylinder 2.

[0022] In a further embodiment, the upper surfaces of both support bases 1 are provided with limiting grooves 17, and the inner walls of the two limiting grooves 17 are slidably connected to limiting sliders 16. The sides of the two limiting sliders 16 that are close to each other are fixedly connected to the outer surfaces of the two hoppers 3 respectively. Through the sliding connection between the limiting grooves 17 and the limiting sliders 16 on the surface of the hopper 3, the vibration of the hopper 3 can be guided. When the vibration motor 20 works, the hopper 3 moves up and down under the action of the spring 15, and the limiting sliders 16 slide along the inner walls of the limiting grooves 17, which can effectively limit the lateral displacement of the hopper 3 and ensure the stability of the vibration direction.

[0023] In a further embodiment, the bottom surfaces of both hoppers 3 are fixedly connected to injection pipes 19, and the outer surfaces of both injection pipes 19 are fixedly connected to injection electric valves 21. The bottom surface of the mixing cylinder 2 is fixedly connected to a discharge pipe 9, and the outer surface of the discharge pipe 9 is fixedly connected to a discharge electric valve 12. Both the discharge electric valve 12 and the injection electric valve 21 are electric rotary valves. The bottom surface of the arc-shaped support plate 7 is fixedly connected to a support base 18. The injection pipe 19 is the channel for injecting raw materials into the mixing cylinder 2. The injection electric valve 21 is an electric rotary valve, also known as a star-shaped unloader, which consists of a rotor with blades and a stator. The motor drives the rotor to rotate and conveys materials through the volume between the blades. The opening and closing angle can be precisely controlled by the PLC controller 5 to adjust the amount of raw materials injected. The discharge pipe 9 is used to discharge the adjusted and qualified matrix. The discharge electric valve 12 can quickly cut off or open the discharge channel. The support base 18 enhances the overall stability of the equipment during operation.

[0024] In a further embodiment, each weighing component 6 includes a support cylinder 601 fixedly connected to the upper surface of an arc-shaped support plate 7. A pressure sensor 602 is fixedly installed on the inner bottom wall of each support cylinder 601. Multiple detection pillars 603 are fixedly connected to the outer surface of the mixing cylinder 2. The detection end of each pressure sensor 602 contacts the bottom end of each detection pillar 603. A variable frequency motor 8 is fixedly installed on the bottom surface of the mixing cylinder 2. A stirring rod 11 is fixedly installed at the output end of the variable frequency motor 8. Multiple stirring blades 10 are fixedly connected to the outer surface of the stirring rod 11. A PLC controller 5 is fixedly installed on one side of the support plate 4. The support cylinder 601 can transmit pressure... Sensor 602 provides an installation carrier. Pressure sensor 602, through contact with detection support 603 on the outer surface of mixing cylinder 2, can sense the weight change of mixing cylinder 2 and internal matrix in real time, providing weight data for specific gravity calculation. The rotation of stirring rod 11 and stirring blade 10 driven by variable frequency motor 8 can fully mix the injected raw material with the initial matrix, ensuring uniform specific gravity. PLC controller 5 on support plate 4 is the control core of the entire device. It can receive detection data from volume sensor 13 and pressure sensor 602, and regulate the coordinated work of components such as injection electric valve 21, variable frequency motor 8, and discharge electric valve 12 according to preset program to achieve specific gravity adjustment control.

[0025] The working principle of this utility model is as follows: First, light raw materials such as perlite and heavy raw materials such as vermiculite are loaded into two hoppers 3 respectively. Then, the volume sensor 13 monitors the initial matrix volume in the mixing drum 2 in real time. When raw materials need to be added, the PLC controller 5 controls the opening of the electric valve 21 on one side, which can inject light or heavy raw materials. In addition, the PLC controller 5 starts the vibration motor 20 to work, which can make the hopper 3 vibrate up and down along the guide of the limiting slider 16 and the limiting groove 17 under the elastic force of the spring 15, and will inject the raw materials in the hopper 3 into the interior of the mixing drum 2.

[0026] After the raw materials are injected, the variable frequency motor 8 drives the stirring rod 11 and stirring blade 10 to rotate and mix. At the same time, the weighing component 6 starts to work. The detection support column 603 transmits the weight of the mixing cylinder 2 and the internal matrix to the pressure sensor 602 in the support cylinder 601. Combined with the data of the volume sensor 13, the PLC controller 5 calculates the current matrix specific gravity in real time. If the specific gravity deviates from the set value, the PLC controller 5 adjusts the corresponding feeding electric valve 21 to replenish the material. There is no need for repeated manual adjustments. After the adjustment is completed, the discharge electric valve 12 opens and the qualified matrix is ​​discharged through the discharge pipe 9.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A specific gravity adjustment device for seedling substrate, characterized in that: The system includes a mixing cylinder (2), with two support bases (1) on the outside of the mixing cylinder (2). Each of the two support bases (1) has a hopper (3) on one side that is close to each other. A support plate (4) is fixedly connected to the outer surface of the mixing cylinder (2). A volume sensor (13) is fixedly installed on the bottom surface of the support plate (4). The volume sensor (13) is located above the mixing cylinder (2). An arc-shaped support plate (7) is fixedly connected to one side that is close to each other. Multiple weighing components (6) are provided above the arc-shaped support plate (7). A vibration motor (20) is fixedly installed on the outer surface of each of the two hoppers (3). A support block (14) is fixedly connected to one side that is close to each other. A spring (15) is fixedly connected to the upper surface of each of the two support blocks (14). The top ends of the two springs (15) are fixedly connected to the bottom surfaces of the two hoppers (3). A PLC controller (5) is fixedly installed on one side of the support plate (4).

2. The specific gravity adjustment device for seedling substrate according to claim 1, characterized in that: The upper surfaces of the two support bases (1) are provided with limiting grooves (17), and the inner walls of the two limiting grooves (17) are slidably connected to limiting sliders (16). The sides of the two limiting sliders (16) that are close to each other are respectively fixedly connected to the outer surfaces of the two hoppers (3).

3. The specific gravity adjustment device for seedling substrate according to claim 1, characterized in that: The bottom surfaces of the two hoppers (3) are fixedly connected to the injection pipes (19), and the outer surfaces of the two injection pipes (19) are fixedly connected to the injection electric valves (21).

4. The specific gravity adjustment device for seedling substrate according to claim 1, characterized in that: Each of the weighing components (6) includes a support cylinder (601) fixedly connected to the upper surface of the arc-shaped support plate (7). A pressure sensor (602) is fixedly installed on the inner bottom wall of each support cylinder (601). A plurality of detection pillars (603) are fixedly connected to the outer surface of the mixing cylinder (2). The detection end of each pressure sensor (602) is in contact with the bottom end of each detection pillar (603).

5. The specific gravity adjustment device for seedling substrate according to claim 1, characterized in that: A variable frequency motor (8) is fixedly installed on the bottom surface of the mixing cylinder (2), and a stirring rod (11) is fixedly installed at the output end of the variable frequency motor (8). Multiple stirring blades (10) are fixedly connected to the outer surface of the stirring rod (11).

6. The specific gravity adjustment device for seedling substrate according to claim 1, characterized in that: The bottom surface of the mixing cylinder (2) is fixedly connected to the discharge pipe (9), and the outer surface of the discharge pipe (9) is fixedly connected to the discharge electric valve (12). Both the discharge electric valve (12) and the injection electric valve (21) are electric rotary valves. The bottom surface of the arc-shaped support plate (7) is fixedly connected to the support base (18).

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