Raw material mixing device for agricultural film production

Abstract

This utility model relates to the field of agricultural film production technology and discloses a raw material mixing device for agricultural film production, comprising: a mixing tank with an inlet pipe and an outlet pipe respectively provided on the upper and lower walls, a heating component provided on the side wall, and several support legs fixedly provided at the lower end of the side wall; a stirring mechanism including a stirring shaft and several stirring blades, the stirring shaft being rotatably connected inside the mixing tank and driven to rotate by a motor fixedly provided on the upper wall of the mixing tank, the stirring blades being fixedly provided on the side wall of the stirring shaft; and a lifting mechanism including a lifting plate and lifting rods, the lifting plate being provided above the mixing tank and driven to rise and fall by a cylinder fixedly provided on the mixing tank, the lifting rods being fixedly provided below the lifting plate and having several of them, the lower end of which slides through the mixing tank and is connected to a lifting head, the side wall of the lifting head having several lifting grooves. The advantage of this utility model is that, based on the traditional stirring, heating and hot melting method, an auxiliary uniform mixing structure is added to mix the hot-melted raw materials and chemical agents.

Description

Technical Field

[0001] This utility model relates to the field of agricultural film production technology, specifically to a raw material mixing device for agricultural film production. Background Technology

[0002] Agricultural film is a type of plastic film used to cover farmland in agricultural production and is an important agricultural production material. It can be classified by material into polyethylene film, polyvinyl chloride film, ethylene-vinyl acetate copolymer film, etc.; and by function into ordinary mulch film, reflective film, weed-control film, heat-insulating film, etc. Its main functions include heat and moisture retention, creating a suitable temperature and humidity environment for crop growth by blocking heat loss from the soil and reducing water evaporation; suppressing weed growth, as the mulch blocks sunlight and inhibits weed germination; conserving soil and fertilizer, reducing soil erosion from wind and rain, and minimizing nutrient loss; and extending the crop growing season, allowing for earlier sowing or delayed harvesting, thereby increasing yield and quality. Agricultural film is widely used in the cultivation of vegetables, fruits, flowers, grains, and other crops.

[0003] Before agricultural film is blown into shape, the hot melting of raw materials and mixing with chemical agents are key steps. The hot-melted agricultural film raw materials have a high viscosity, like a thick colloid, which makes it difficult for chemical agents such as antioxidants and light stabilizers to be fully dispersed. This can easily lead to uneven distribution of components in certain areas, affecting the performance of the agricultural film. For example, uneven distribution of antioxidants will accelerate aging, and insufficient light stabilizers will weaken the ability to resist ultraviolet rays. Utility Model Content

[0004] To solve the above-mentioned problems, this utility model proposes a raw material mixing device for agricultural film production, which adds an auxiliary uniform mixing structure to the traditional stirring, heating and hot melting process for mixing hot-melting raw materials and chemical agents.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this utility model is: a raw material mixing device for agricultural film production, comprising:

[0006] The mixing tank has an inlet pipe and an outlet pipe on the upper and lower walls, a heating component on the side wall, and several support legs fixed at the lower end of the side wall.

[0007] A stirring mechanism includes a stirring shaft and several stirring blades. The stirring shaft is rotatably connected inside a mixing tank and is driven to rotate by a motor fixed to the upper wall of the mixing tank. The stirring blades are fixed to the side wall of the stirring shaft.

[0008] The lifting mechanism includes a lifting plate and a lifting rod. The lifting plate is located above the mixing tank and is driven to lift by a cylinder fixed on the mixing tank. The lifting rod is fixed below the lifting plate and has several of them. Its lower end slides through the mixing tank and is connected to a lifting head. The side wall of the lifting head has several lifting grooves.

[0009] Furthermore, a control valve is provided on the discharge pipe.

[0010] Furthermore, the heating assembly includes several heating rings that are equidistantly distributed on the side wall of the mixing tank.

[0011] Furthermore, the stirring blades are arranged in two sets, one above the other, with each set of stirring blades equidistantly distributed around the stirring shaft, and the two sets of stirring blades are staggered.

[0012] Furthermore, two cylinders are symmetrically arranged below the lifting plate and work synchronously.

[0013] Furthermore, the lifting rods are equidistantly distributed around the stirring mechanism, and the upper wall of the mixing tank is provided with guide tubes that match the lifting rods, with the lifting rods sliding through the guide tubes.

[0014] Furthermore, the lifting head is cylindrical, and the lifting grooves are arranged around the lifting head, with the lifting grooves being evenly distributed vertically.

[0015] Compared with existing technologies, this invention has the following advantages: The two sets of staggered stirring blades in the stirring mechanism create a composite axial and radial flow field, eliminating dead zones and allowing the hot-melt raw materials and chemical agents to fully collide and fuse during rotation. The heating rings are equidistantly distributed on the sidewall of the mixing tank, ensuring uniform circumferential temperature and consistent heating of the raw materials, avoiding localized overheating or uneven plasticization, and laying a temperature foundation for uniform agent dispersion. The cylindrical lifting head of the lifting mechanism has a surrounding lifting groove, which can lift the high-viscosity material at the bottom during up-and-down movement, forming convective mixing with the upper material. This is particularly suitable for high-viscosity raw materials, solving the problem of low mixing efficiency of traditional stirring for viscous materials. The synergistic effect of multiple structures allows for dual uniformity of temperature and composition during stirring, heating, and lifting, improving mixing quality and production controllability. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 This is the front view of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the mixing tank of this utility model.

[0020] As shown in the figure: 1. Mixing tank; 2. Feed pipe; 3. Discharge pipe; 4. Support leg; 5. Stirring shaft; 6. Stirring blade; 7. Motor; 8. Lifting plate; 9. Lifting rod; 10. Cylinder; 11. Lifting head; 12. Control valve; 13. Heating ring; 14. Guide tube. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] Combined with appendix Figure 1 Appendix Figure 3 A raw material mixing device for agricultural film production includes: a mixing tank 1, with an inlet pipe 2 and an outlet pipe 3 respectively provided on the upper and lower walls. The outlet pipe 3 is equipped with a control valve 12, which can accurately control the outlet flow rate and timing to avoid material overflow or leakage and improve the controllability of the production process.

[0023] Combined with appendix Figure 2 Appendix Figure 3 A heating component is provided on the side wall of the mixing tank 1, and several support legs 4 are fixedly provided at the lower end of the side wall. The heating component includes several electric heating rings 13, which are equidistantly distributed on the side wall of the mixing tank 1. This enables the mixing tank 1 to have a uniform circumferential temperature, ensures that the raw materials are heated evenly, and improves the mixing quality and plasticizing effect.

[0024] Combined with appendix Figure 1 Appendix Figure 4 The mixing mechanism includes a mixing shaft 5 and several mixing blades 6. The mixing shaft 5 is rotatably connected inside the mixing tank 1 and is driven to rotate by a motor 7 fixed on the upper wall of the mixing tank 1. The mixing blades 6 are fixed on the side wall of the mixing shaft 5. There are two sets of mixing blades 6 arranged vertically. Each set of mixing blades 6 is equidistantly distributed around the mixing shaft 5. The two sets of mixing blades 6 are staggered to form a three-dimensional mixing flow field, which enhances the axial and radial mixing effect, reduces the mixing dead angle, and improves the mixing efficiency and uniformity.

[0025] Combined with appendix Figure 1 Appendix Figure 3 The lifting mechanism includes a lifting plate 8 and a lifting rod 9. The lifting plate 8 is located above the mixing tank 1 and is driven to lift by a cylinder 10 fixed on the mixing tank 1. Two cylinders 10 are symmetrically arranged below the lifting plate 8 and work synchronously to balance the force on the lifting mechanism, avoid tilting and jamming during the lifting process, and ensure that the lifting head 11 moves smoothly.

[0026] Combined with appendix Figure 1 Appendix Figure 4 The lifting rods 9 are fixedly installed below the lifting plate 8 and are provided in several kinds. Their lower ends slide through the mixing tank 1 and are connected to the lifting head 11. The lifting rods 9 are evenly distributed around the stirring mechanism. The upper wall of the mixing tank 1 is provided with a guide tube 14 that matches the lifting rods 9. The lifting rods 9 slide through the guide tube 14, which can reduce frictional resistance and prevent swaying, so that the lifting head 11 can move stably along the axial direction and extend the service life of the mechanism.

[0027] Combined with appendix Figure 4The lifting head 11 has several lifting grooves on its side wall. The lifting head 11 is cylindrical, and the lifting grooves are arranged around the lifting head 11. The lifting grooves are evenly distributed vertically, which can form a good material lifting and mixing effect when moving up and down, especially for mixing and dispersing high-viscosity raw materials.

[0028] The specific implementation of this utility model is as follows: Hot-melt raw materials and chemical agents are fed into the mixing tank 1 through the feed pipe 2 on the upper wall. Then, the side-wall heating rings 13 are activated. The equidistantly distributed heating rings 13 uniformly heat the tank circumferentially, bringing the raw materials to the preset hot-melt temperature. Next, the upper wall motor 7 is turned on, driving the stirring shaft 5 to rotate two sets of staggered stirring blades 6, forming an axial and radial composite flow field for initial mixing of the materials. When it is necessary to enhance the dispersion of high-viscosity materials, the cylinder 10 is activated to push the lifting plate 8, causing the lifting rod 9 fixed below it to move the lifting head 11 up and down along the guide pipe 14. The lifting groove on the side wall of the lifting head 11 lifts the bottom material during movement, creating convection with the upper material. After mixing is complete, the control valve 12 on the discharge pipe 3 is opened to precisely control the flow rate and discharge the material. Throughout the process, the stirring mechanism, heating components, and lifting mechanism work together to ensure efficient mixing of the raw materials and agents in a uniform temperature environment.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A raw material mixing device for agricultural film production, characterized in that, include: The mixing tank (1) has an inlet pipe (2) and an outlet pipe (3) on its upper and lower walls, a heating component on its side wall, and several support legs (4) fixedly installed at the lower end of the side wall. The stirring mechanism includes a stirring shaft (5) and several stirring blades (6). The stirring shaft (5) is rotatably connected to the mixing tank (1) and is driven to rotate by a motor (7) fixed on the upper wall of the mixing tank (1). The stirring blades (6) are fixed on the side wall of the stirring shaft (5). The lifting mechanism includes a lifting plate (8) and a lifting rod (9). The lifting plate (8) is located above the mixing tank (1) and is driven to lift by a cylinder (10) fixed on the mixing tank (1). The lifting rod (9) is fixed below the lifting plate (8) and has several of them. Its lower end slides through the mixing tank (1) and is connected to a lifting head (11). The side wall of the lifting head (11) has several lifting grooves.

2. The raw material mixing device for agricultural film production according to claim 1, characterized in that: The discharge pipe (3) is equipped with a control valve (12).

3. The raw material mixing device for agricultural film production according to claim 1, characterized in that: The heating assembly includes several heating rings (13) that are equidistantly distributed on the side wall of the mixing tank (1).

4. The raw material mixing device for agricultural film production according to claim 1, characterized in that: The stirring blades (6) are arranged in two sets, one above the other. Each set of stirring blades (6) is equidistantly distributed around the stirring shaft (5), and the two sets of stirring blades (6) are staggered.

5. The raw material mixing device for agricultural film production according to claim 1, characterized in that: Two cylinders (10) are symmetrically arranged below the lifting plate (8) and work synchronously.

6. The raw material mixing device for agricultural film production according to claim 1, characterized in that: The lifting rods (9) are equidistantly distributed around the stirring mechanism. The upper wall of the mixing tank (1) is provided with a guide tube (14) matching the lifting rods (9). The lifting rods (9) slide through the guide tube (14).

7. The raw material mixing device for agricultural film production according to claim 1, characterized in that: The lifting head (11) is cylindrical, and the lifting grooves are arranged around the lifting head (11) and are distributed at equal intervals above and below.

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