A seedling substrate mixing device

Abstract

This utility model discloses a seedling substrate mixing device, belonging to the field of agricultural seedling technology. It includes an overflow-proof bucket to prevent the mixture from overflowing during mixing. Inside the overflow-proof bucket is a mixing bucket for holding the seedling substrate. Two rotating frames are rotatably mounted inside the mixing bucket. Each of the two rotating frames has multiple guide grooves for rotational guidance. A spring is connected inside each of the guide grooves, with one end of the spring connected to the inner wall of the guide groove and the other end connected to a rotating column. The rotating column is rotatably positioned inside the rotating frame, which has a flow guide groove. Multiple curved disturbance plates for the movement of the mixture are installed at one end of the rotating column. This device allows different raw materials to fully interweave, significantly improving mixing uniformity. Simultaneously, the efficient disturbance reduces the mixing time required, thereby improving overall mixing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural seedling technology, and in particular to a seedling substrate mixing device. Background Technology

[0002] In agricultural seedling cultivation, the quality of the seedling substrate directly affects the growth of seedlings. Seedling substrates are usually composed of a mixture of various raw materials, such as peat moss, perlite, and vermiculite. Seedling substrate raw materials with different densities and particle sizes (such as lightweight perlite and heavier peat moss) are difficult to fully interweave and blend, easily resulting in "layering". Weak disturbance ability will significantly reduce the uniformity of mixing, prolong the mixing time, and reduce efficiency.

[0003] A search of Chinese patent documents (authorization announcement number CN208627057U) reveals that this utility model belongs to the field of agricultural production equipment technology, specifically relating to a seedling substrate mixing device. The device includes a support frame, a tank, and a cover. The tank is mounted on the support frame, and the cover is detachably mounted on the tank via bolts. The support frame has a first support platform and a second support platform. A first drive motor is mounted on the first support platform, and a support rod is mounted on the second support platform, with a second drive motor mounted on the support rod. The tank contains a first stirring shaft and a second stirring shaft. One end of the first stirring shaft passes through a first bearing and is connected to the first drive motor, while the other end has a first stirring blade. One end of the second stirring shaft passes through a second bearing and is connected to the second drive motor, while the other end has a second stirring blade. A third bearing is mounted on the first stirring shaft. The bottom of the tank has a conical plate and a discharge port, with the upper end of the conical plate connected to the third bearing. This utility model improves the mixing uniformity and efficiency of the seedling substrate, and the device can meet basic usage requirements. However, its weak agitation capability significantly reduces mixing uniformity, prolongs mixing time, and lowers efficiency. Utility Model Content

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

[0005] To achieve the above objectives, the present invention provides the following technical solution: a seedling substrate mixing device, comprising an overflow-proof bucket for preventing the mixture from overflowing during seedling substrate mixing, wherein a mixing bucket for holding the seedling substrate is installed inside the overflow-proof bucket; The mixing tank is internally mounted with two rotating frames. Each of the two rotating frames has multiple guide grooves for rotational guidance. Each guide groove is connected to a spring. One end of the spring is connected to the inner wall of the guide groove, and the other end is connected to a rotating column. The rotating column is rotatably mounted inside the rotating frame. The rotating frame has a flow guide groove inside. One end of the rotating column is equipped with multiple curved disturbance plates for the movement of the mixture, and the other end of the rotating column is equipped with multiple baffles for contact with the mixture. Each baffle has multiple through holes on its surface.

[0006] Preferably, three stirring plates for increasing mixing efficiency are installed between the two rotating frames, and the surface of the stirring plates is provided with multiple square grooves for stirring.

[0007] Preferably, the top of the overflow tank is equipped with a drive unit for providing power, and the output end of the drive unit is equipped with a rotating shaft via a coupling. The outer circumference of the rotating shaft is fixedly connected to the rotating frame.

[0008] Preferably, the outer periphery of the rotating shaft is equipped with stirring blades for increasing mixing efficiency, and the bottom of the rotating shaft is fixedly equipped with triangular stirring blades.

[0009] Preferably, a support frame for limiting the displacement of the rotating shaft is fixedly installed on the vertical inner wall of the mixing tank, and the rotating shaft is rotatably disposed inside the support frame.

[0010] Preferably, the top of the overflow prevention bucket is provided with an inlet for the seedling substrate raw materials to enter, and the bottom of the overflow prevention bucket is equipped with a discharge control pipe.

[0011] Preferably, the bottom of the overflow bucket is fixedly equipped with support legs for supporting the overflow bucket.

[0012] Compared with the prior art, the technical effects and advantages of this utility model are as follows: This seedling substrate mixing device benefits from the structure of curved disturbance plates and baffles. When the rotating frame rotates, the curved disturbance plates and baffles come into contact with the mixture. Under the action of resistance, they drive the rotating column to rotate, causing the spring to deform. The restoring force of the spring causes them to reciprocate within a certain angle. This reciprocating motion greatly enhances the disturbance capability, allowing different raw materials to fully interweave and significantly improving the mixing uniformity. At the same time, the efficient disturbance reduces the time required for raw material mixing, thereby improving the overall mixing efficiency.

[0013] This seedling substrate mixing device, thanks to the structure of its mixing paddles and triangular mixing blades, uses the mixing paddles to radially agitate the substrate in the upper part of the mixing tank, pushing the substrate from the edges towards the center, while the triangular mixing blades specifically agitate the substrate at the bottom to prevent sedimentation. The combined effect covers different height areas within the mixing tank, avoiding the problem of insufficient mixing in certain areas, further ensuring the quality of substrate mixing, and indirectly improving mixing efficiency. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This utility model Figure 2 Enlarged view of point A in the middle; Figure 5 This utility model Figure 3 Enlarged view of point B in the middle.

[0016] Explanation of reference numerals in the attached figures: In the diagram: 1. Overflow tank; 101. Support leg; 102. Mixing tank; 103. Drive unit; 104. Rotating shaft; 105. Discharge control pipe; 106. Feed inlet; 107. Support frame; 2. Rotating frame; 201. Guide channel; 202. Guide groove; 203. Spring; 204. Rotating column; 205. Bending disturbance plate; 206. Baffle plate; 207. Through hole; 3. Stirring plate; 301. Stirring blade; 302. Triangular stirring blade. Detailed Implementation

[0017] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0018] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0019] like Figures 1 to 5 The seedling substrate mixing device shown includes an overflow tank 1 for preventing the mixture from overflowing during the mixing of seedling substrates, and a mixing tank 102 for holding the seedling substrate is installed inside the overflow tank 1. Inside the mixing tank 102, two rotating frames 2 are rotatably mounted. Each rotating frame 2 has multiple guide grooves 202 for rotational guidance. A spring 203 is connected inside each guide groove 202. One end of the spring 203 is connected to the inner wall of the guide groove 202, and the other end is connected to a rotating column 204. The rotating column 204 is rotatably mounted inside the rotating frame 2. The rotating frame 2 has a flow guide groove 201 inside. Multiple curved disturbance plates 205 for the movement of the mixture are mounted at one end of the rotating column 204, and multiple baffle plates 206 for contact with the mixture are mounted at the other end. Multiple through holes 207 are provided on the surface of each baffle plate 206. After the drive unit 103 is activated, its output end drives the rotating shaft 104 to rotate via a coupling. Since the outer circumference of the rotating shaft 104 is fixedly connected to the two rotating frames 2, the rotating frames 2 rotate synchronously with the rotating shaft 104. During the rotation of the rotating frame 2, the bending disturbance plates 205 and baffles 206 at the ends of the multiple rotating columns 204 inside it come into contact with the mixture. Under the resistance of the mixture, the bending disturbance plates 205 and baffles 206 drive the rotating columns 204 to rotate, at which time the spring 203 deforms. Due to the restoring action of the spring 203, the bending disturbance plates 205 and baffles 206 will reciprocate within a certain rotation angle: when the resistance of the mixture is greater than the elastic force of the spring 203, the rotating column 204 rotates along the guide groove 202 and stretches the spring 203; when the elastic force of the spring 203 is greater than the resistance of the mixture, it drives the rotating column 204 to rotate in the opposite direction to reset. This reciprocating motion greatly increases the frequency and range of disturbance to the mixture, significantly improving the mixing efficiency.

[0020] Three stirring plates 3 for increasing mixing efficiency are installed between the two rotating frames 2. The surface of the stirring plates 3 is provided with multiple square grooves for stirring. A drive unit 103 for providing power is installed on the top of the overflow tank 1. The output end of the drive unit 103 is connected to a rotating shaft 104 via a coupling. The outer periphery of the rotating shaft 104 is fixedly connected to the rotating frame 2. Stirring blades 301 for increasing mixing efficiency are installed on the outer periphery of the rotating shaft 104. A triangular stirring blade 302 is fixedly installed at the bottom of the rotating shaft 104. A support frame 107 for limiting the displacement of the rotating shaft 104 is fixedly installed on the vertical inner wall of the mixing tank 102. The rotating shaft 104 is rotatably disposed inside the support frame 107. While the rotating frame 2 rotates, the three stirring plates 3 between the two rotating frames 2 rotate synchronously with the rotating frame 2. Multiple square grooves on the surface of the mixing plate 3 cut the matrix flow during agitation, breaking large matrix pieces into smaller ones. Simultaneously, the matrix is ​​briefly retained within the grooves before being ejected, increasing the probability of collisions between the matrix pieces and thus improving mixing efficiency. The stirring blades 301 mounted on the outer periphery of the rotating shaft 104 and the triangular stirring blades 302 at the bottom also rotate at high speed with the rotating shaft 104. The stirring blades 301 primarily perform radial agitation on the matrix in the upper part of the mixing tank 102, pushing the matrix at the edges towards the center. The triangular stirring blades 302 agitate the matrix at the bottom of the mixing tank 102, preventing matrix deposition and ensuring that matrix at different heights within the tank is thoroughly mixed. Furthermore, the support frame 107 fixedly installed on the vertical inner wall of the mixing tank 102 limits the rotation shaft 104, ensuring that it does not shift during high-speed rotation and guaranteeing the stable operation of all agitation structures.

[0021] The top of the overflow-proof tank 1 is equipped with an inlet 106 for the seedling substrate raw materials to enter, and the bottom of the overflow-proof tank 1 is equipped with a discharge control pipe 105. Support legs 101 are fixedly installed at the bottom of the overflow-proof tank 1 to support it. The seedling substrate raw materials enter the device through the inlet 106 at the top of the overflow-proof tank 1 and fall directly into the mixing tank 102. The overflow-proof tank 1 effectively prevents the substrate from splashing out during mixing, ensuring a clean working environment. At this time, the mixing tank 102 serves as the main container for substrate mixing, providing space for subsequent stirring operations. After the coordinated stirring of the above-mentioned multiple structures, the uniformly mixed seedling substrate is discharged through the discharge control pipe 105 at the bottom of the overflow-proof tank 1, completing one mixing operation. Throughout the process, the support legs 101 at the bottom of the overflow-proof tank 1 provide stable support for the device, preventing it from shifting due to vibration. This device, through multiple structural designs, avoids environmental influences and ensures stable operation. For example, the overflow tank 1 forms a closed space, and its top feed inlet 106 is equipped with a closable cover. After the raw materials are added, the cover is closed promptly to prevent external dust and impurities from entering the mixing tank 102. It also prevents internal matrix from splashing and polluting the environment, and avoids direct intrusion of humid air that could affect the dryness of the matrix. The bottom support legs 101 of the device are made of non-slip and wear-resistant material to increase friction with the ground and reduce device displacement and shaking caused by uneven ground or external vibrations, ensuring the operational stability of components such as the rotating shaft 104 and the rotating frame 2. The inner wall of the mixing tank 102 is treated with anti-corrosion material to resist the erosion of the matrix in a humid environment and extend its service life. The drive unit 103 is equipped with a dustproof and moisture-proof cover to isolate external moisture and dust, preventing them from entering the motor and affecting its operation. The discharge control pipe 105 is equipped with a valve that closes when operation is paused to prevent environmental debris from entering the pipe and causing blockages. It also prevents undischarged substrate from clumping due to environmental humidity. Furthermore, the support frame 107 strengthens the stability of the rotating shaft 104, reducing shaft misalignment caused by environmental vibrations and ensuring precise operation of components such as the mixing blades 301 and triangular mixing blades 302, guaranteeing that the mixing effect is not affected by external factors. These designs form a closed loop in terms of protection, stability, and isolation, effectively mitigating the adverse effects of environmental factors on the device's operation. Environmental considerations are not an innovative aspect of this seedling substrate mixing device and will not be discussed further.

[0022] Working principle In this seedling substrate mixing device, the seedling substrate raw materials first enter through the feed inlet 106 at the top of the overflow tank 1 and fall into the internal mixing tank 102. The overflow tank 1 prevents the substrate from overflowing during mixing, and the support legs 101 at the bottom provide stable support. After the drive unit 103 is started, it drives the rotating shaft 104 to rotate through the coupling, and the two rotating frames 2 fixed to the rotating shaft 104 rotate synchronously. When the rotating frames 2 rotate, the bending disturbance plate 205 and the baffle plate 206 at the end of the internal rotating column 204 come into contact with the mixture. Under the action of resistance, the rotating column 204 rotates, causing the spring 203 to deform. With the help of the restoring force of the spring 203, the bending disturbance plate 205 and the baffle plate 206 reciprocate within a certain angle, increasing the frequency and range of disturbance. At the same time, the three stirring plates 3 between the two rotating frames 2 rotate with them, and the square grooves on the surface cut the substrate flow, divide the large pieces of substrate, and increase the collision. The stirring blades 301 on the rotating shaft 104 radially stir the upper part of the substrate, while the triangular stirring blades 302 at the bottom agitate the substrate at the bottom to prevent sedimentation. The support frame 107 inside the mixing tank 102 restricts the displacement of the rotating shaft 104 to ensure stable operation. Finally, the uniformly mixed substrate is discharged through the discharge control pipe 105 at the bottom of the overflow tank 1, completing the mixing operation.

[0023] It should be noted that in this article, relational terms such as one and two are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0024] 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 seedling substrate mixing device, comprising an overflow-proof bucket (1) for preventing the mixture from overflowing during seedling substrate mixing, characterized in that: The overflow-proof bucket (1) has a mixing bucket (102) installed inside for holding the seedling substrate. The mixing tank (102) has two rotating frames (2) rotatably mounted inside. Each of the two rotating frames (2) has multiple guide grooves (202) for rotational guidance. Each of the multiple guide grooves (202) is connected to a spring (203). One end of the spring (203) is connected to the inner wall of the guide groove (202), and the other end of the spring (203) is connected to a rotating column (204). The rotating column (204) is rotatably mounted inside the rotating frame (2). The rotating frame (2) has a flow guide groove (201) inside. One end of the rotating column (204) is equipped with multiple curved disturbance plates (205) for the movement of the mixture, and the other end of the rotating column (204) is equipped with multiple baffles (206) for contact with the mixture. Each of the multiple baffles (206) has multiple through holes (207) on its surface.

2. The seedling substrate mixing device according to claim 1, characterized in that: Three stirring plates (3) for increasing mixing efficiency are installed between the two rotating frames (2), and the surface of the stirring plates (3) is provided with multiple square grooves for stirring.

3. The seedling substrate mixing device according to claim 1, characterized in that: The top of the overflow tank (1) is equipped with a drive unit (103) for providing power. The output end of the drive unit (103) is equipped with a rotating shaft (104) through a coupling. The outer periphery of the rotating shaft (104) is fixedly connected to the rotating frame (2).

4. The seedling substrate mixing device according to claim 3, characterized in that: The outer periphery of the rotating shaft (104) is equipped with stirring blades (301) for increasing mixing efficiency, and a triangular stirring blade (302) is fixedly installed at the bottom of the rotating shaft (104).

5. The seedling substrate mixing device according to claim 3, characterized in that: The mixing tank (102) has a support frame (107) fixedly installed on its vertical inner wall to limit the displacement of the rotating shaft (104), and the rotating shaft (104) is rotatably disposed inside the support frame (107).

6. The seedling substrate mixing device according to claim 1, characterized in that: The top of the overflow tank (1) is provided with an inlet (106) for the entry of seedling substrate raw materials, and the bottom of the overflow tank (1) is provided with a discharge control pipe (105).

7. The seedling substrate mixing device according to claim 1, characterized in that: The bottom of the overflow bucket (1) is fixedly equipped with a support leg (101) for supporting the overflow bucket (1).

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