A high polymer plastic particle screening device

Abstract

The utility model discloses a macromolecular plastics granule screening device, include: bottom plate, the top of bottom plate is provided with drive assembly, the top of bottom plate is movably provided with screening subassembly, and drive assembly includes support frame, motor no.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule processing, and in particular to a polymer plastic granule screening device. Background Technology

[0002] In the plastics processing industry, the screening of plastic granules is a crucial step. Plastic granules of different sizes have different application requirements in subsequent processing techniques. For example, in injection molding, uniformly sized plastic granules ensure product quality stability and consistency, avoiding molding defects such as shrinkage cavities and cracks caused by inconsistent particle sizes. In plastic film manufacturing, a suitable particle size distribution helps improve the film's strength, transparency, and uniformity. Therefore, accurate and efficient screening of plastic granules is a key step in ensuring the quality of plastic products.

[0003] Traditional methods for screening plastic granules mainly rely on manual screening or vibrating screen equipment. Manual screening is not only labor-intensive and inefficient, but also difficult to guarantee screening accuracy, easily affected by human factors, leading to inconsistent screening results. While vibrating screen equipment improves screening efficiency to some extent, its screening method is relatively simple, typically only achieving basic particle size classification. This makes it difficult to meet the diverse production needs of plastic products with strict particle size distribution requirements. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a polymer plastic particle screening device.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] This utility model discloses a polymer plastic particle screening device, comprising: A base plate is provided with a driving assembly on its top. A screening assembly is movably arranged above the base plate. The driving assembly includes a support frame, a first motor, a lead screw, a moving plate, a first connecting seat, a second connecting seat, and a support rod. The support frame is installed on the top of the base plate. The first motor is installed on one side of the support frame. The lead screw is rotatably installed inside the support frame. The rotating shaft of the first motor is connected to one end of the lead screw. The moving plate is threadedly connected to the outside of the lead screw. Limit grooves are formed on both sides of the inside of the support frame. Both ends of the moving plate extend into the inside of the limit grooves and are slidably connected to the limit grooves. Three first connecting seats are installed on the top of the moving plate. One end of the support rod is hinged to the first connecting seat.

[0007] As a preferred technical solution of this utility model, the screening assembly includes a screening cylinder, a second motor, a cover plate, a rotating disk, a first lever, a second lever, a first filter cylinder, and a second filter cylinder. The bottom of the screening cylinder is provided with a base, and the bottom of the base is equipped with three second connecting seats. The interior of each second connecting seat is hinged to one end of one of the three support rods.

[0008] As a preferred technical solution of this utility model, the bottom surface of the base is in contact with the top surface of the support frame, a support frame one is installed on the top side of the base plate, and a support frame two is installed on the bottom side of the base, with the support frame two being hinged to the support frame one.

[0009] As a preferred technical solution of this utility model, the cover plate is fixedly installed on one side of the screening cylinder by bolts, the second motor is installed on the outer side of the cover plate, the rotating disk is rotatably installed inside the cover plate, and two levers and two levers are installed on the inner side of the rotating disk.

[0010] As a preferred technical solution of this utility model, the first filter cylinder and the second filter cylinder are fixedly installed on one side of the inner side of the screening cylinder. The first filter cylinder is adapted to the first lever, and the second filter cylinder is adapted to the second lever. The first filter cylinder is located inside the second filter cylinder, and the filter hole diameter of the first filter cylinder is larger than that of the second filter cylinder.

[0011] As a preferred technical solution of this utility model, a feed inlet is provided on one side of the screening cylinder, and a cap is threaded on the outer side of the feed inlet.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention achieves multi-stage fine screening of plastic particles by setting up filter cylinder one and filter cylinder two with different pore sizes. During the stirring and screening process, the plastic particles can be classified according to different particle size ranges, greatly improving the screening accuracy. Motor two drives a rotating disk, which in turn rotates levers one and two installed inside the rotating disk, stirring the plastic particles in filter cylinders one and two. This stirring method increases the contact opportunities and movement frequency between the plastic particles and the filter cylinders, allowing the plastic particles to pass through the filter cylinders with corresponding pore sizes more quickly and thoroughly, effectively improving screening efficiency and shortening screening time. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a perspective view of the drive component of this utility model; Figure 4 This is a perspective view of the support frame of this utility model; Figure 5 This is a two-dimensional view of the filter cartridge of this utility model; Figure 6 This is a partial three-dimensional view of the structure of this utility model; In the diagram: 1. Base plate; 2. Drive assembly; 201. Support frame; 202. Motor 1; 203. Lead screw; 204. Moving plate; 205. Connecting seat 1; 206. Connecting seat 2; 207. Support rod; 3. Screening assembly; 301. Screening cylinder; 302. Motor 2; 303. Cover plate; 304. Rotating disc; 305. Lever 1; 306. Lever 2; 307. Filter cylinder 1; 308. Filter cylinder 2; 4. Limiting groove; 5. Base; 6. Feed inlet. Detailed Implementation

[0014] 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.

[0015] In the attached diagram, all identical reference numerals refer to the same components.

[0016] like Figure 1-6 As shown, this utility model provides a polymer plastic particle screening device, comprising: A base plate 1 is provided, and a drive assembly 2 is provided on the top of the base plate 1. A screening assembly 3 is movably provided above the base plate 1. The drive assembly 2 includes a support frame 201, a motor 202, a lead screw 203, a moving plate 204, a connecting seat 205, a connecting seat 206, and a support rod 207. The support frame 201 is installed on the top of the base plate 1. The motor 202 is installed on one side of the support frame 201. The lead screw 203 is rotatably installed inside the support frame 201. The rotating shaft of the motor 202 is connected to one end of the lead screw 203. The moving plate 204 is threadedly connected to the outside of the lead screw 203. Limiting grooves 4 are opened on both sides inside the support frame 201. Both ends of the moving plate 204 extend into the interior of the limiting grooves 4 and are slidably connected to the limiting grooves 4. Three connecting seats 205 are installed on the top of the moving plate 204. One end of the support rod 207 is hinged to the connecting seat 205.

[0017] Specifically, the motor 202 drives the lead screw 203 to rotate, which in turn drives the moving plate 204 to move. Through the cooperation of the connecting seat 205, the connecting seat 206, and the support rod 207, the base 5 can be driven to rotate around the mounting frame 1 and the mounting frame 2 fulcrum, thereby changing the tilt angle of the screening device 3 to facilitate the material feeding operation.

[0018] In this embodiment, the screening assembly 3 includes a screening cylinder 301, a second motor 302, a cover plate 303, a rotating disk 304, a first lever 305, a second lever 306, a first filter cylinder 307, and a second filter cylinder 308. The bottom of the screening cylinder 301 is provided with a base 5, and three second connecting seats 206 are installed on the bottom of the base 5. The interior of the second connecting seats 206 is respectively hinged to one end of the three support rods 207.

[0019] Specifically, the rotating disk 304 is driven by motor 2 302 to rotate, which in turn drives lever 1 305 and lever 2 306 to rotate, stirring and agitating the plastic particles inside filter cylinder 1 307 and filter cylinder 2 308, thereby improving screening efficiency.

[0020] In this embodiment, the bottom surface of the base 5 contacts the top surface of the support frame 201, a support frame one is installed on the top side of the base plate 1, and a support frame two is installed on the bottom side of the base 5. The support frame two is hinged to the support frame one.

[0021] Furthermore, a cover plate 303 is fixedly installed on one side of the screening cylinder 301 by bolts. A motor 302 is installed on the outside of the cover plate 303. A rotating disk 304 is rotatably installed inside the cover plate 303. Two levers 305 and two levers 306 are installed on the inside of the rotating disk 304.

[0022] Furthermore, a filter cylinder 307 and a filter cylinder 308 are fixedly installed on one side of the inside of the screening cylinder 301. The filter cylinder 307 is adapted to the lever 305, and the filter cylinder 308 is adapted to the lever 306. The filter cylinder 307 is located inside the filter cylinder 308, and the filter hole diameter of the filter cylinder 307 is larger than that of the filter cylinder 308.

[0023] Furthermore, a feed inlet 6 is provided on one side of the screening cylinder 301, and a cap is threaded on the outer side of the feed inlet 6.

[0024] Working principle: When in use, connect the device to an external power supply and controller. When plastic granule screening is required, open the threaded cap on the outside of the feed port 6, pour the polymer plastic granules to be screened from the feed port 6 into the filter cylinder 307 inside the screening cylinder 301, and then tighten the cap again to start the screening process.

[0025] Internal stirring and sieving of the screening assembly: Motor 2 (302) is started, driving the rotating disk 304 to rotate inside the cover plate 303. Two levers (305 and 306) installed inside the rotating disk 304 rotate accordingly, stirring the plastic particles inside the filter cylinders 307 and 308 fixed to one side of the screening cylinder 301. Because the filter cylinders 307 and 308 have different apertures, during stirring, plastic particles of different sizes are sieved through them respectively. Larger plastic particles remain inside filter cylinder 307, while smaller particles pass through filter cylinder 308 for further sieving, causing even smaller particles to fall onto the screening cylinder 301, thus achieving the grading of plastic particles of different sizes.

[0026] After screening, the bolts on the cover plate 303 are unscrewed, and the cover plate 303 is removed. Then, motor 202 is started, and the rotating shaft of motor 202 drives the lead screw 203 to rotate inside the support frame 201. Since the moving plate 204 is threadedly connected to the lead screw 203, and both ends of the moving plate 204 slide within the limiting groove 4 inside the support frame 201, the moving plate 204 moves linearly along the axial direction of the lead screw 203. The three connecting seats 205 at the top of the moving plate 204 move linearly accordingly, driving one end of the support rod 207 hinged to the connecting seats 205 to move linearly. The other end of the support rod 207 is hinged to the connecting seat 206 at the bottom of the base 5 in the screening assembly 3. With the hinged cooperation of the support frame 1 and the support frame 2, the support rod 207 pushes the base 5 of the screening assembly 3 to rotate around the hinge point of the support frame 1 and the support frame 2, so that the screening cylinder 301 is tilted. Then, the plastic particles inside the filter cylinder 1 307, the filter cylinder 2 308, and the screening cylinder 301 can be fed into the filter cylinder 1 307, and the three groups of plastic particles can be collected separately, thereby completing the screening of plastic particles.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A polymer plastic particle screening device, characterized in that, include: A base plate (1) is provided with a driving assembly (2) on its top. A screening assembly (3) is movably arranged above the base plate (1). The driving assembly (2) includes a support frame (201), a motor (202), a lead screw (203), a moving plate (204), a connecting seat (205), a connecting seat (206), and a support rod (207). The support frame (201) is installed on the top of the base plate (1). The motor (202) is installed on one side of the support frame (201). The motor (202) is rotatably installed inside the support frame (201). The screw (203) is connected to one end of the rotating shaft of the motor (202). The external thread of the screw (203) is connected to the moving plate (204). Limiting grooves (4) are opened on both sides of the inside of the support frame (201). Both ends of the moving plate (204) extend into the inside of the limiting grooves (4) and are slidably connected to the limiting grooves (4). Three connecting seats (205) are installed on the top of the moving plate (204). One end of the support rod (207) is hinged to the connecting seats (205).

2. The polymer plastic particle screening device according to claim 1, characterized in that, The screening assembly (3) includes a screening cylinder (301), a second motor (302), a cover plate (303), a rotating disk (304), a first lever (305), a second lever (306), a first filter cylinder (307), and a second filter cylinder (308). The bottom of the screening cylinder (301) is provided with a base (5), and the bottom of the base (5) is equipped with three second connecting seats (206). The interior of the second connecting seat (206) is hinged to one end of the three support rods (207).

3. The polymer plastic particle screening device according to claim 2, characterized in that, The bottom surface of the base (5) is in contact with the top surface of the support frame (201). A support frame one is installed on the top side of the base plate (1), and a support frame two is installed on the bottom side of the base (5). The support frame two is hinged to the support frame one.

4. The polymer plastic particle screening device according to claim 2, characterized in that, The cover plate (303) is fixedly installed on one side of the screening cylinder (301) by bolts. The motor (302) is installed on the outside of the cover plate (303). The rotating disk (304) is rotatably installed inside the cover plate (303). Two levers (305) and two levers (306) are installed on the inside of the rotating disk (304).

5. The polymer plastic particle screening device according to claim 4, characterized in that, The first filter cylinder (307) and the second filter cylinder (308) are fixedly installed on one side of the inside of the screening cylinder (301). The first filter cylinder (307) is adapted to the first lever (305), and the second filter cylinder (308) is adapted to the second lever (306). The first filter cylinder (307) is located inside the second filter cylinder (308), and the filter aperture of the first filter cylinder (307) is larger than that of the second filter cylinder (308).

6. The polymer plastic particle screening device according to claim 5, characterized in that, The screening cylinder (301) has a feed inlet (6) on one side, and the feed inlet (6) has a cap threaded on the outside.

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