Raw material screening device for regenerated plastic production

Abstract

The raw material screening device comprises an adsorption plate, rotating shafts are fixedly connected to the middles of the front wall and the rear wall of the adsorption plate, the rotating shafts penetrate through and are rotationally connected to the middles of the front wall and the rear wall of an opening, gears are fixedly connected to the ends, away from the adsorption plate, of the rotating shafts, and racks are connected to the right sides of the gears in an engaged mode; connecting plates are fixedly connected to the middles of the right side walls of the racks and fixedly connected to the output ends of air cylinders, the air cylinders are fixedly connected to the middles of the top walls of the fixing plates, a collecting box is arranged at the bottom of the right wall of the outer side of the machine shell, and a mounting frame is arranged on the upper middle portion of the right side wall of the machine shell. According to the raw material screening device for reprocessed plastic production, part of iron chips which are large in mass and not blown by a fan fall into the inner side of a water storage tank along with plastic, then a hydraulic cylinder is started, the output end of the hydraulic cylinder extends to enable a collecting shell to move forwards, plastic raw materials floating on the upper side of the water surface are collected and gathered together, secondary screening is conducted on the plastic raw materials, and the screening efficiency is improved. And the raw material screening quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of plastic processing, specifically is raw material screening device for regenerative plastic production. BACKGROUND

[0002] The regenerative plastic is the plastic raw material that the waste plastics is processed after the physical or chemical method such as pretreatment, melt granulation, modification, is the reuse of plastic.

[0003] In the prior art, when the regenerative plastic is recycled, the raw material may contain other impurities such as metal scraps and stones, and if it is directly recycled and melted, the plastic will be mixed with impurities, which will affect the quality of the plastic, so the screening device is needed to screen the internal impurities before recycling and melting. UTILITY MODEL CONTENT

[0004] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0005] The utility model relates to a raw material screening device for regenerative plastic production, which comprises a casing, a plurality of screening mechanisms are arranged on the inner side of the casing,

[0006] The plurality of screening mechanisms comprise an adsorption plate, a rotating shaft is fixedly connected to the middle part of the front and rear walls of the adsorption plate, the rotating shaft penetrates and is rotatably connected to the middle part of the front and rear walls of the opening, a gear is fixedly connected to the end of the rotating shaft away from the adsorption plate, a rack is meshingly connected to the right side of the gear, a connecting plate is fixedly connected to the middle part of the right side wall of the rack, the connecting plate is fixedly connected to the output end of the air cylinder, the air cylinder is fixedly connected to the middle part of the top wall of the fixed plate, a collecting box is arranged at the bottom of the right side wall outside the casing, an installation frame is arranged on the middle and upper part of the right side wall of the casing, and a fan is arranged on the inner side of the installation frame.

[0007] As a preferred technical scheme of the utility model, a feeding hopper is arranged in the middle part of the top wall of the casing, and the fixed plate is fixedly connected to the middle part of the left end of the front and rear walls outside the casing.

[0008] As a preferred technical scheme of the utility model, a chute is arranged at the bottom of the casing, and a water storage tank is slidably connected to the inner side of the chute.

[0009] As a preferred technical scheme of the utility model, a hydraulic cylinder is fixedly connected to the middle and upper part of the rear wall of the water storage tank, and a collecting shell is fixedly connected to the output end of the hydraulic cylinder.

[0010] As a preferred technical scheme of the utility model, a plurality of evenly distributed water leakage holes are arranged on the bottom wall of the collecting shell, and the collecting shell is located on the inner side of the top of the water storage tank.

[0011] As a preferred technical scheme of the utility model, the handle is fixedly connected to the middle part of the front wall of the water storage groove, and the water storage groove is located below the adsorption plate and the fan.

[0012] As a preferred technical scheme of the utility model, the support rods are fixedly connected to the four corners of the bottom wall of the shell, and the power-off switch is arranged on the left side of the middle part of the top wall of the shell.

[0013] The utility model has the advantages of:

[0014] 1. The raw material screening device for regenerated plastic production, when the plastic raw material needs to be screened, the material is slowly poured from the feeding hopper, the fan and the adsorption plate are started at the same time, the material is blown by the fan during the working process to move to the left side, and the material is in contact with the adsorption plate, the iron filings in the material are adsorbed by the adsorption plate to separate the iron filings from the plastic, then the cylinder is started, the output end of the cylinder is extended to move the rack upwards, so that the rotating shaft and the adsorption plate rotate, the side of the material adsorbed by the adsorption plate is located on the upper side of the collecting box, and the power-off switch is pressed, so that the iron filings fall into the collecting box under the action of gravity to complete the collecting operation, and the difficulty of plastic screening is reduced.

[0015] 2. The raw material screening device for regenerated plastic production, the iron filings with large mass that are not blown by the fan fall into the inside of the water storage groove along with the plastic, then the hydraulic cylinder is started, the output end of the hydraulic cylinder is extended to move the collecting shell forward, the plastic raw material floating on the upper side of the water surface is collected and gathered, and the plastic raw material is screened again, so that the screening quality of the raw material is improved. DRAWINGS

[0016] The drawings are used to provide a further understanding of the utility model, constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model. In the drawings:

[0017] Figure 1 It is a whole structure top view schematic view of the raw material screening device for regenerated plastic production of the utility model;

[0018] Figure 2 It is a whole structure side view schematic view of the raw material screening device for regenerated plastic production of the utility model;

[0019] Figure 3 It is a whole structure bottom view schematic view of the raw material screening device for regenerated plastic production of the utility model;

[0020] Figure 4 It is a structure schematic view of the raw material screening device for regenerated plastic production of the utility model.

[0021] In the diagram: 1. Machine casing; 2. Multi-stage screening mechanism; 3. Opening; 4. Adsorption plate; 5. Rotating shaft; 6. Gear; 7. Rack; 8. Cylinder; 9. Fixing plate; 10. Connecting plate; 11. Feed hopper; 12. Mounting frame; 13. Fan; 14. Collection box; 15. Slide chute; 16. Water storage tank; 17. Handle; 18. Collection shell; 19. Drain hole; 20. Hydraulic cylinder; 21. Power off switch; 22. Support rod. Detailed Implementation

[0022] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0023] Example: Figures 1-4 As shown, the present invention provides a raw material screening device for recycled plastic production, including a housing 1, and a multi-stage screening mechanism 2 is provided inside the housing 1.

[0024] The multi-stage screening mechanism 2 includes an adsorption plate 4. An electromagnet is installed inside the adsorption plate 4. The electromagnet is electrically connected to a power-off switch 21. By pressing the power-off switch 21, the electromagnet loses its magnetism, allowing iron filings to slide off the outer wall of the adsorption plate 4. A rotating shaft 5 is fixedly connected to the middle of both the front and rear walls of the adsorption plate 4. The rotating shaft 5 passes through and rotatably connects to the middle of the front and rear walls of the opening 3, enabling the adsorption plate 4 to rotate inside the opening 3. The ends of the rotating shafts 5 away from the adsorption plate 4 are fixedly connected to... Gear 6, rack 7 is meshed with the right side of gear 6, connecting plate 10 is fixedly connected to the middle of the right side wall of rack 7, connecting plate 10 is fixedly connected to the output end of cylinder 8. When cylinder 8 works, rack 7 can move up and down, thereby driving adsorption plate 4 to rotate during the rotation of gear 6. Cylinder 8 is fixedly connected to the middle of the top wall of fixed plate 9. Collection box 14 is set at the bottom of the right side wall of outer casing 1. Mounting frame 12 is set at the upper middle of the right side wall of casing 1. Fan 13 is set inside the mounting frame 12.

[0025] A feed hopper 11 is fixedly connected through the middle of the top wall of the casing 1. Fixed plates 9 are fixedly connected to the middle left ends of the front and rear walls of the outer side of the casing 1. A chute 15 is provided at the bottom of the casing 1. A water storage tank 16 is slidably connected to the inner side of the chute 15. The material to be screened is added into the casing 1 through the feed hopper 11.

[0026] A hydraulic cylinder 20 is fixedly connected to the upper part of the rear wall of the water storage tank 16. A collection shell 18 is fixedly connected to the output end of the hydraulic cylinder 20. The bottom wall of the collection shell 18 is provided with multiple sets of evenly distributed water leakage holes 19. The collection shell 18 is located at the top of the inner side of the water storage tank 16. As the collection shell 18 moves forward, it gathers the plastic on the water surface inside, separating it from other impurities in the water.

[0027] The front wall of the water storage tank 16 is fixedly connected with a handle 17 in the middle part, the water storage tank 16 is located below the adsorption plate 4 and the fan 13, the support rods 22 are fixedly connected at the four corners of the bottom wall of the casing 1, the power-off switch 21 is arranged at the left side of the middle part of the top wall of the casing 1, pressing the power-off switch 21 can control the electromagnet inside the adsorption plate 4, and the support rods 22 can support and fix the casing 1 and the internal components thereof.

[0028] Working principle: when the plastic raw materials need to be screened, the materials are slowly poured from the feeding hopper 11, and the fan 13 and the adsorption plate 4 are started at the same time; the fan 13 blows the materials to move to the left side during the working process, and makes the materials contact with the adsorption plate 4; the iron scraps in the materials are adsorbed by the adsorption plate 4, so that the iron scraps are separated from the plastics; then the air cylinder 8 is started, the output end of the air cylinder 8 is extended to make the rack 7 move upwards, so that the rotating shaft 5 and the adsorption plate 4 rotate, the side of the adsorption plate 4 adsorbing the materials is located on the upper side of the collecting box 14, then the power-off switch 21 is pressed, the iron scraps fall into the collecting box 14 under the action of gravity to complete the collecting operation, and the iron scraps with large quality which are not blown by the fan 13 fall into the inside of the water storage tank 16 together with the plastics, then the hydraulic cylinder 20 is started, the output end of the hydraulic cylinder 20 is extended to make the collecting shell 18 move forward, so that the plastic raw materials floating on the upper side of the water surface are collected and gathered, the plastic raw materials are screened again, and the plastic raw material screening operation is completed.

[0029] Finally, it should be noted that in the description of the utility model, it should be pointed out that the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0030] In the description of the utility model, it should also be pointed out that unless otherwise specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0031] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A raw material screening device for producing recycled plastic, comprising a casing (1), characterized in that: The inside of the shell (1) is provided with a multi-stage screening mechanism (2); The multi-stage screening mechanism (2) comprises an adsorption plate (4), the middle part of the front and back walls of the adsorption plate (4) is fixedly connected with a rotating shaft (5), the rotating shaft (5) penetrates and is rotatably connected to the middle part of the front and back walls of the opening (3), the end of the rotating shaft (5) away from the adsorption plate (4) is fixedly connected with a gear (6), the right side of the gear (6) is meshingly connected with a rack (7), the middle part of the right side wall of the rack (7) is fixedly connected with a connecting plate (10), the connecting plate (10) is fixedly connected to the output end of the air cylinder (8), the air cylinder (8) is fixedly connected to the middle part of the top wall of the fixed plate (9), the outside right wall bottom of the shell (1) is provided with a collecting box (14), the right side wall middle of the shell (1) is provided with a mounting frame (12), the inside of the mounting frame (12) is provided with a fan (13).

2. The raw material screening device for recycled plastic production according to claim 1, characterized in that, The middle part of the top wall of the shell (1) penetrates and is fixedly connected with a feeding hopper (11), the fixed plate (9) is fixedly connected to the middle part of the left end of the front and back walls of the shell (1) outside.

3. The raw material screening device for recycled plastic production according to claim 1, characterized in that, The bottom of the shell (1) is provided with a chute (15), the inside of the chute (15) is slidably connected with a water storage tank (16).

4. The raw material screening device for recycled plastic production according to claim 3, characterized in that, The middle part of the back wall of the water storage tank (16) is fixedly connected with a hydraulic cylinder (20), the output end of the hydraulic cylinder (20) is fixedly connected with a collecting shell (18).

5. The raw material screening device for recycled plastic production according to claim 4, characterized in that, The bottom wall of the collecting shell (18) is provided with a plurality of evenly distributed water leakage holes (19), the collecting shell (18) is located on the inside top of the water storage tank (16).

6. The raw material screening device for recycled plastic production according to claim 3, characterized in that, The middle part of the front wall of the water storage tank (16) is fixedly connected with a handle (17), the water storage tank (16) is located below the adsorption plate (4) and the fan (13).

7. The raw material screening device for recycled plastic production according to claim 1, characterized in that, The bottom wall of the shell (1) is fixedly connected with a support rod (22) at the four corners, and the middle part of the top wall of the shell (1) is provided with a power-off switch (21).

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