Mixing device for preparing polylactic acid composite material
By designing a quantification unit and a conveying unit in the mixing device for preparing polylactic acid composite materials, the quantitative and uniform transport of starch is achieved, the problem of uneven starch mixing in the prior art is solved, and the efficiency of preparation of polylactic acid composite materials is improved.
Patent Information
- Application Number
- CN202421177232.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The existing mixing device cannot achieve quantitative addition of starch, resulting in uneven mixing of starch in the polylactic acid resin melt, reducing the efficiency of polylactic acid composite preparation.
A mixing device for preparing polylactic acid composite materials is designed, including a metering unit and a conveying unit. The metering unit realizes the quantitative addition of starch through a rotating rod and component leaves, and the conveying unit realizes the conveying unit conveys starch through a conveying belt and a push plate.
Through the design of the quantification unit, starch can be mixed with the polylactic acid resin melt faster and more evenly, improving mixing efficiency and effect.
Smart Images
Figure CN222610096U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of preparation of polylactic acid composite materials, and relates to a mixing device for preparing polylactic acid composite materials, in particular to a mixing device for preparing polylactic acid composite materials. Background Art
[0002] Polylactic acid composite material is a biodegradable material made by mixing various types of starch as the main raw materials with polylactic acid resin melt. Polylactic acid composite material can be made into agricultural film, packaging film, domestic garbage bags, etc. It has good degradability and helps to reduce white pollution.
[0003] However, most of the mixing tanks currently on the market do not have the function of adding portions into the mixing tank. If starch is added into the mixing tank at one time and mixed with the polylactic acid resin melt, the starch will accumulate in one piece, so that a long period of stirring is required to evenly mix the starch and the polylactic acid resin melt, thereby reducing the efficiency of preparing the polylactic acid composite material. Summary of the invention
[0004] The utility model aims to provide a mixing device for preparing a polylactic acid composite material in view of the above problems existing in the prior art.
[0005] The purpose of the utility model can be achieved through the following technical solutions: a mixing device for preparing polylactic acid composite materials, characterized in that it includes a mixing tank, a quantitative unit is arranged on the top of the mixing tank, a conveying unit is arranged on one side of the mixing tank, the quantitative unit includes a quantitative shell fixedly arranged on the top of the mixing tank, a rotating rod is rotatably arranged in the quantitative shell, a component blade is fixedly arranged on the surface of the rotating rod, and a motor for rotating the rotating rod is fixedly arranged on one side of the quantitative shell.
[0006] In the above-mentioned mixing device for preparing a polylactic acid composite material, the conveying unit includes a material guide shell fixedly arranged on the top of the quantitative shell, a conveying shell is fixedly arranged at one end of the material guide shell, two transmission rods are rotatably arranged in the conveying shell, and a conveyor belt is arranged between the two rotating rods, and a plurality of push plates are arranged on the surface of the conveyor belt.
[0007] In the above-mentioned mixing device for preparing a polylactic acid composite material, a motor 2 for rotating a transmission rod is fixedly arranged on one side of the conveying shell, a feed hopper is fixedly arranged on one side of the conveying shell, a feed port is arranged between the feed hopper and the conveying shell, and a plurality of supporting legs 2 are arranged at the bottom of the conveying shell and the feed hopper.
[0008] In the above-mentioned mixing device for preparing a polylactic acid composite material, a feed pipe is fixedly arranged on the top of the mixing tank, a rotating rod 2 is arranged inside the mixing tank, a plurality of stirring blades are fixedly arranged on the surface of the rotating rod 2, and a motor 3 for rotating the rotating rod 2 is fixedly arranged on the top of the mixing tank.
[0009] In the above-mentioned mixing device for preparing a polylactic acid composite material, a discharge hopper is fixedly arranged at the bottom of the mixing tank, a valve is arranged on the discharge hopper, and a plurality of supporting legs are fixedly arranged at the bottom of the mixing tank.
[0010] Compared with the prior art, the mixing device for preparing the polylactic acid composite material can put the starch component into the mixing tank through the quantitative unit, so that the starch can be mixed with the polylactic acid resin melt faster, the mixing efficiency is improved, and the mixing effect of the two is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a three-dimensional schematic diagram of a mixing device for preparing the polylactic acid composite material;
[0012] Figure 2 It is a cross-sectional schematic diagram of a mixing device for preparing the polylactic acid composite material.
[0013] In the figure, 1, mixing tank; 2, metering unit; 3, conveying unit; 4, metering shell; 5, rotating rod 1; 6, metering blade; 7, motor 1; 8, material guide shell; 9, conveying shell; 10, transmission rod; 11, conveyor belt; 12, push plate; 13, motor 2; 14, feed hopper; 15, feed port; 16, support leg 2; 17, feed pipe; 18, rotating rod 2; 19, stirring blade; 20, motor 3; 21, discharge hopper; 22, valve; 23, support leg 1. DETAILED DESCRIPTION
[0014] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0015] like Figure 1 , 2As shown, the mixing device for preparing the polylactic acid composite material comprises a mixing tank 1, a dosing unit 2 is arranged on the top of the mixing tank 1, a conveying unit 3 is arranged on one side of the mixing tank 1, the dosing unit 2 comprises a dosing shell 4 fixedly arranged on the top of the mixing tank 1, a rotating rod 5 is rotatably arranged in the dosing shell 4, a component leaf 6 is fixedly arranged on the surface of the rotating rod 5, and a motor 7 for rotating the rotating rod 5 is fixedly arranged on one side of the dosing shell 4. After the polylactic acid resin melt is added into the mixing tank 1, the conveying unit 3 conveys the starch into the dosing shell 4, and the motor 7 is used to drive the rotating rod 5 to rotate, so that the component leaf 6 rotates. At the same time, during the rotation process, the starch in the dosing shell 4 is quantitatively added into the mixing tank 1 to be mixed with the polylactic acid resin melt.
[0016] Preferably, the conveying unit 3 includes a material guide shell 8 fixedly arranged on the top of the quantitative shell 4, the material guide shell 8 is used to guide the starch in the conveying shell 9 into the quantitative shell 4, and a conveying shell 9 is fixedly arranged at one end of the material guide shell 8. Two transmission rods 10 are rotatably arranged in the conveying shell 9, and a conveyor belt 11 is arranged between the two rotating rods. A plurality of push plates 12 are arranged on the surface of the conveyor belt 11. After the starch enters the conveying shell 9, the conveyor belt 11 rotates, so that the push plates 12 convey the starch.
[0017] Preferably, a motor 2 13 for rotating the transmission rod 10 is fixedly provided on one side of the conveying shell 9, a feed hopper 14 is fixedly provided on one side of the conveying shell 9, a feed port 15 is provided between the feed hopper 14 and the conveying shell 9, and a plurality of supporting legs 2 16 are provided at the bottom of the conveying shell 9 and the feed hopper 14. Starch is added into the feed hopper 14, and the starch in the feed hopper 14 enters the conveying shell 9 through the feed port 15. The motor 2 13 is used to rotate the transmission rod 10, so that the conveyor belt 11 runs to feed the starch.
[0018] Preferably, a feeding pipe 17 is fixedly provided on the top of the mixing tank 1, and the polylactic acid resin melt is added into the mixing tank 1 through the feeding pipe 17. A rotating rod 18 is provided in the mixing tank 1, and a plurality of stirring blades 19 are fixedly provided on the surface of the rotating rod 18. A motor 3 20 for rotating the rotating rod 18 is fixedly provided on the top of the mixing tank 1. When mixing, the motor 3 20 is used to drive the rotating rod 18 to rotate, so that the stirring blades 19 mix and stir the polylactic acid resin melt and starch, thereby achieving a better mixing effect.
[0019] Preferably, a discharge hopper 21 is fixedly provided at the bottom of the mixing tank 1, a valve 22 is provided on the discharge hopper 21, and a plurality of supporting legs 23 are fixedly provided at the bottom of the mixing tank 1. After the mixing is completed, the discharge hopper 21 is opened using the valve 22 to take out the material.
[0020] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
[0021] Although this article uses more terms such as mixing tank 1, quantitative unit 2, conveying unit 3, quantitative shell 4, rotating rod 1 5, component blade 6, motor 1 7, guide shell 8, conveying shell 9, transmission rod 10, conveyor belt 11, push plate 12, motor 2 13, feed hopper 14, feed port 15, support leg 2 16, feed pipe 17, rotating rod 2 18, stirring blade 19, motor 3 20, discharge hopper 21, valve 22, support leg 1 23, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.
Claims
1. A mixing device for preparing a polylactic acid composite material, characterized in that: The invention comprises a mixing tank (1), wherein a dosing unit (2) is arranged on the top of the mixing tank (1), a conveying unit (3) is arranged on one side of the mixing tank (1), the dosing unit (2) comprises a dosing shell (4) fixedly arranged on the top of the mixing tank (1), a rotating rod (5) is rotatably arranged in the dosing shell (4), a portioning blade (6) is fixedly arranged on the surface of the rotating rod (5), and a motor (7) for rotating the rotating rod (5) is fixedly arranged on one side of the dosing shell (4).
2. A mixing device for preparing a polylactic acid composite material according to claim 1, characterized in that: The conveying unit (3) comprises a material guide shell (8) fixedly arranged on the top of the quantitative shell (4), a conveying shell (9) fixedly arranged at one end of the material guide shell (8), two transmission rods (10) rotatably arranged in the conveying shell (9), and a conveying belt (11) is arranged between the two rotating rods, and a plurality of push plates (12) are arranged on the surface of the conveying belt (11).
3. A mixing device for preparing a polylactic acid composite material according to claim 2, characterized in that: A second motor (13) for rotating the transmission rod (10) is fixedly provided on one side of the conveying shell (9), a feed hopper (14) is fixedly provided on one side of the conveying shell (9), a feed port (15) is provided between the feed hopper (14) and the conveying shell (9), and a plurality of second supporting legs (16) are provided at the bottom of the conveying shell (9) and the feed hopper (14).
4. A mixing device for preparing a polylactic acid composite material according to claim 1, characterized in that: A feed pipe (17) is fixedly arranged on the top of the mixing tank (1), a rotating rod (18) is arranged inside the mixing tank (1), a plurality of stirring blades (19) are fixedly arranged on the surface of the rotating rod (18), and a motor (20) for rotating the rotating rod (18) is fixedly arranged on the top of the mixing tank (1).
5. A mixing device for preparing a polylactic acid composite material according to claim 1, characterized in that: A discharge hopper (21) is fixedly arranged at the bottom of the mixing tank (1), a valve (22) is arranged on the discharge hopper (21), and a plurality of supporting legs (23) are fixedly arranged at the bottom of the mixing tank (1).