Mixing device for EVA (Ethylene Vinyl Acetate) particle processing

Abstract

The utility model discloses a mixing device for EVA particle processing, which comprises a stirring box, the top of the stirring box is fixedly connected with a filter box, the top of the filter box is provided with a feed inlet, the bottom of the stirring box is fixedly connected with a discharge pipe in an inserted manner, one end of the filter box is fixedly connected with a first discharge plate, the first discharge plate is located on the outer side of the filter box, and the first discharge plate is connected with a second discharge plate. And the other end of the filter box is fixedly connected with a second discharge plate, and the second discharge plate is positioned in the filter box. According to the EVA particle screening device, EVA particles with the largest particle size are screened out through the first screening plate, then the EVA particles with the largest particle size roll into the collecting box below along the first discharging plate to be collected, then the EVA particles with the largest particle size roll into the collecting box below along the first discharging plate to be collected, and therefore EVA particle screening is achieved. And the screened EVA particles can be discharged in time, so that the EVA particles are prevented from being accumulated in the filter box.

Description

Technical Field

[0001] This utility model relates to the field of mixing technology, and in particular to a mixing device for processing EVA particles. Background Technology

[0002] EVA granules refer to copolymers of ethylene and vinyl chloride. EVA granules are non-toxic, odorless white powder or granules with an overall milky white appearance. When mixing EVA granules with plasticizers, they need to be sieved. Sieving can separate EVA granules of different sizes, making the particle size distribution of the product more uniform. Uniform particle size helps to ensure the consistency of product thickness uniformity, mechanical properties and other indicators, and improves the stability of product quality.

[0003] Currently, the existing EVA particles have poor screening effect during processing, and the EVA particles filtered out by the filter screen will still remain in the filter box. When too many EVA particles accumulate, it will reduce the filtration efficiency of the filter screen. Utility Model Content

[0004] The purpose of this invention is to solve the problem of reduced filtration efficiency of existing filters by proposing a mixing device for EVA particle processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A mixing device for processing EVA particles includes a mixing box, a filter box fixedly connected to the top of the mixing box, a feed inlet at the top of the filter box, and a discharge pipe fixedly inserted into the bottom of the mixing box. A first discharge plate is fixedly connected to one end of the filter box, located outside the filter box, and a second discharge plate is fixedly connected to the other end of the filter box, located inside the filter box. A first screening plate and a second screening plate are rotatably connected between the inner walls of the two sides of the filter box. Two springs are fixedly connected to the top of the first screening plate, with the top ends of the springs fixedly connected to the inner wall of the top of the filter box. A connecting plate is fixedly connected to one end between the first screening plate and the second screening plate, and a discharge port is provided on the second screening plate.

[0007] Furthermore, the top of the first screening plate is provided with a groove, a slider is slidably connected in the groove, the top of the slider is rotatably connected to a connecting rod, and the top of the connecting rod is fixedly connected to a sliding plate.

[0008] Furthermore, two positioning rods are fixedly connected to the top outer wall of the filter box, and the sliding plate is slidably sleeved with the positioning rods.

[0009] Furthermore, a second motor is fixedly connected to the top outer wall of the filter box, and a pressing block is fixedly connected to the output end of the second motor, with the pressing block in contact with the slide plate.

[0010] Furthermore, a protective shell is fixedly connected to the top of the first screening plate, and the protective shell covers the top of the chute.

[0011] Furthermore, a feeding pipe is sealed and connected to one end of the mixing tank.

[0012] Furthermore, a first motor is fixedly connected to the outer wall of one end of the mixing tank, a rotating shaft is fixedly connected to the output end of the first motor, and multiple stirring blades are fixedly connected to the outer wall of the rotating shaft, with the stirring blades located inside the mixing tank.

[0013] Furthermore, a control panel is fixedly connected to one side of the outer wall of the mixing tank, and the control panel is electrically connected to the first motor and the second motor.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The largest EVA particles are screened out by the first screening plate. Then, the largest EVA particles roll down the first discharge plate into the collection box below for collection. This process of screening EVA particles and timely discharge of the screened EVA particles avoids the accumulation of EVA particles in the filter box.

[0016] 2. Driven by the second motor, the extrusion block rotates and presses the slide plate downward, causing one end of the first and second screening plates to rotate downward. When the extrusion block is not in contact with the slide plate, the first and second screening plates are reset under the elastic action of the spring, thereby causing the first and second screening plates to shake up and down, thus improving the efficiency of EVA particle screening.

[0017] 3. Driven by the first motor, the stirring blades rotate, ensuring that the EVA particles and plasticizer are thoroughly and evenly mixed for convenient and quick subsequent use. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a mixing device for EVA particle processing proposed in this utility model;

[0019] Figure 2 This is a cross-sectional structural schematic diagram of a mixing device for EVA particle processing proposed in this utility model;

[0020] Figure 3 This is an enlarged structural diagram of the drying and separating box of a mixing device for EVA particle processing proposed in this utility model;

[0021] Figure 4This is a partial three-dimensional structural diagram of a mixing device for EVA particle processing proposed in this utility model.

[0022] In the diagram: 1. Mixing tank; 2. Filtering tank; 3. Discharge pipe; 4. Control panel; 5. First motor; 6. Mixing blade; 7. First discharge plate; 701. Second discharge plate; 8. Feed inlet; 9. First screening plate; 901. Second screening plate; 10. Connecting plate; 11. Discharge port; 12. Spring; 13. Second motor; 14. Extrusion block; 15. Slide groove; 1501. Sliding block; 16. Connecting rod; 1601. Slide plate; 17. Positioning rod; 18. Protective shell; 19. Feeding pipe. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figures 1-4 A mixing device for processing EVA particles includes a mixing tank 1. A filter box 2 is bolted to the top of the mixing tank 1. The top of the filter box 2 is provided with a feed inlet 8. A discharge pipe 3 is fixedly connected to the bottom of the mixing tank 1. A valve is provided on the discharge pipe 3. A first discharge plate 7 is welded to one end of the filter box 2. The largest EVA particles are discharged along the first discharge plate 7. The first discharge plate 7 is located on the outside of the filter box 2. A second discharge plate 701 is welded to the other end of the filter box 2. The smallest EVA particles are discharged from the second discharge plate 701. The second discharge plate 701 is located inside the filter box 2. A first screening plate 9 and a second screening plate 901 are rotatably connected between the inner walls of the two sides of the filter box 2. The largest and smallest EVA particles are screened out by the first screening plate 9 and the second screening plate 901, while medium-sized EVA particles are retained.

[0025] Two springs 12 are welded to the top of the first screening plate 9. The top of the springs 12 are fixedly connected to the inner wall of the top of the filter box 2. A connecting plate 10 is bolted to one end between the first screening plate 9 and the second screening plate 901. The second screening plate 901 is provided with a discharge port 11. The top of the first screening plate 9 is provided with a slide groove 15. A slider 1501 is slidably connected in the slide groove 15. The top of the slider 1501 is rotatably connected to a connecting rod 16. A sliding plate 1601 is welded to the top of the connecting rod 16. Two positioning rods 17 are welded to the outer wall of the top of the filter box 2. The sliding plate 1601 is slidably sleeved with the positioning rods 17. A second motor 13 is bolted to the outer wall of the top of the filter box 2. The output of the second motor 13... An extrusion block 14 is fixed to the end by bolts. The extrusion block 14 contacts the slide plate 1601. Driven by the second motor 13, the extrusion block 14 rotates. When the extrusion block 14 contacts the slide plate 1601, the extrusion block 14 will press the slide plate 1601 downward, thereby driving the connecting rod 16 to move downward, so that the slider 1501 moves in the slide groove 15, thereby causing one end of the first screening plate 9 and the second screening plate 901 to rotate downward. When the extrusion block 14 is not in contact with the slide plate 1601, the first screening plate 9 and the second screening plate 901 are reset under the elastic action of the spring 12, thereby causing the first screening plate 9 and the second screening plate 901 to shake up and down, thereby screening the EVA particles.

[0026] A protective shell 18 is welded to the top of the first screening plate 9. The protective shell 18 covers the top of the chute 15 to prevent EVA particles from falling into the chute 15 and affecting the movement of the slider 1501. A feeding pipe 19 is sealed and inserted into one end of the mixing box 1. Plasticizer is put into the mixing box 1 through the feeding pipe 19. A first motor 5 is fixed to the outer wall of one end of the mixing box 1 by bolts. A rotating shaft is fixed to the output end of the first motor 5 by bolts. Multiple stirring blades 6 are fixed to the outer wall of the rotating shaft by bolts. The stirring blades 6 are located inside the mixing box 1. The stirring blades 6 rotate under the drive of the first motor 5, so that the EVA particles and plasticizer are fully and evenly mixed. A control panel 4 is fixed to one side of the outer wall of the mixing box 1 by bolts. The control panel 4 is electrically connected to the first motor 5 and the second motor 13.

[0027] The working principle of this embodiment is as follows: In use, a collection box is placed below the first discharge plate 7 and the second discharge plate 701. First, EVA particles are put into the filter box 2 through the feed port 8. Then, the EVA particles fall onto the first screening plate 9. The largest EVA particles are screened out by the first screening plate 9. The largest EVA particles roll down along the first screening plate 9. Then, the largest EVA particles roll down along the first discharge plate 7 and are collected in the collection box below. Next, the remaining EVA particles fall onto the second screening plate 901 through the first screening plate 9. The smallest EVA particles fall onto the second discharge plate 701 through the second screening plate 901 and roll down along the second discharge plate 701 to be collected in the collection box below. Then, the medium-sized EVA particles are trapped on the second screening plate 901. Then, the medium-sized EVA particles roll down along the second screening plate 901 and fall into the mixing box from the discharge port 11, thereby realizing the screening of EVA particles.

[0028] During screening, the second motor 13 is started, and the extrusion block 14 rotates under the drive of the second motor 13. When the extrusion block 14 contacts the slide plate 1601, the extrusion block 14 will press the slide plate 1601 downward, thereby driving the connecting rod 16 to move downward, so that the slider 1501 moves in the slide groove 15, thereby causing one end of the first screening plate 9 and the second screening plate 901 to rotate downward. When the extrusion block 14 is not in contact with the slide plate 1601, the first screening plate 9 and the second screening plate 901 are reset under the elastic action of the spring 12, thereby causing the first screening plate 9 and the second screening plate 901 to shake up and down, thereby improving the screening efficiency of EVA particles.

[0029] During mixing, plasticizer is fed into mixing tank 1 through feeding pipe 19. Then, the first motor 5 is started, and the stirring blade 6 is rotated under the drive of the first motor 5, so that EVA particles and plasticizer are fully and evenly mixed for subsequent use. After mixing, the valve is opened to discharge EVA particles from discharge pipe 3.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mixing device for processing EVA particles, comprising a mixing tank (1), characterized in that, A filter box (2) is fixedly connected to the top of the mixing tank (1). The filter box (2) has an inlet (8) at the top and a discharge pipe (3) is fixedly inserted into the bottom of the mixing tank (1). A first discharge plate (7) is fixedly connected to one end of the filter box (2). The first discharge plate (7) is located outside the filter box (2). A second discharge plate (701) is fixedly connected to the other end of the filter box (2). The second discharge plate (701) is located inside the filter box (2). A first screening plate (9) and a second screening plate (901) are rotatably connected between the inner walls of the two sides of the filter box (2). Two springs (12) are fixedly connected to the top of the first screening plate (9). The top of the springs (12) is fixedly connected to the inner wall of the top of the filter box (2). A connecting plate (10) is fixedly connected to one end between the first screening plate (9) and the second screening plate (901). A discharge port (11) is provided on the second screening plate (901).

2. The mixing device for EVA particle processing according to claim 1, characterized in that, The top of the first screening plate (9) is provided with a sliding groove (15), and a slider (1501) is slidably connected in the sliding groove (15). The top of the slider (1501) is rotatably connected to a connecting rod (16), and the top of the connecting rod (16) is fixedly connected to a sliding plate (1601).

3. The mixing device for EVA particle processing according to claim 2, characterized in that, The top outer wall of the filter box (2) is fixedly connected to two positioning rods (17), and the sliding plate (1601) is slidably sleeved with the positioning rods (17).

4. The mixing device for EVA particle processing according to claim 3, characterized in that, The top outer wall of the filter box (2) is fixedly connected to a second motor (13), and the output end of the second motor (13) is fixedly connected to a pressing block (14), which is in contact with the slide plate (1601).

5. The mixing device for EVA particle processing according to claim 2, characterized in that, A protective shell (18) is fixedly connected to the top of the first screening plate (9), and the protective shell (18) covers the top of the chute (15).

6. The mixing device for EVA particle processing according to claim 1, characterized in that, A feeding pipe (19) is sealed and inserted into one end of the mixing tank (1).

7. The mixing device for EVA particle processing according to claim 1, characterized in that, A first motor (5) is fixedly connected to the outer wall of one end of the mixing tank (1). A rotating shaft is fixedly connected to the output end of the first motor (5). Multiple stirring blades (6) are fixedly connected to the outer wall of the rotating shaft. The stirring blades (6) are located inside the mixing tank (1).

8. The mixing device for EVA particle processing according to claim 7, characterized in that, A control panel (4) is fixedly connected to one side of the outer wall of the mixing tank (1), and the control panel (4) is electrically connected to the first motor (5) and the second motor (13).

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