A plastic particle vibrating screening device

Abstract

The utility model belongs to the field of plastic granules, concretely is a kind of plastic granule vibrating screening device, including frame;The first screen frame and second screen frame are slidably connected on the frame, the bottom of the first screen frame is equipped with first screen plate, the bottom of the second screen frame is equipped with second screen plate, the bottom of the first screen frame and second screen frame is all fixed with a plurality of pedestal, the side of the pedestal is fixed with connecting frame, the side of the connecting frame is hinged with connecting rod, the side of the frame is rotatably connected with crank shaft, the end of the connecting rod and crank shaft are rotatably connected, and the plastic granules of small particle size fall from the second screen plate, and the mesh number of the first screen plate is adapted to the plastic granules of required particle size;In the process of screening, rely on motor-driven crank shaft to rotate, and the crank shaft drives connecting frame to move by connecting rod, and connecting frame drives the reciprocating motion of the first screen frame and second screen frame, to realize the rapid screening of plastic granules, and improve screening speed.

Description

Technical Field

[0001] This utility model relates to the field of plastic granules, specifically a vibrating screening device for plastic granules. Background Technology

[0002] In current technology, in order to facilitate subsequent injection molding, the raw materials of plastic are pre-mixed and extruded into corresponding plastic granules. The preparation process of plastic granules mainly includes four steps: mixing, melt extrusion, cooling and pelletizing. The particle size of plastic granules is controlled by the die of the extruder and the pelletizer.

[0003] However, during use, the plastic granules produced by the pelletizer have a certain defect rate, which affects the uniformity of the particle size. Therefore, a vibrating screening device for plastic granules is proposed to address the above problem. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a plastic particle vibration screening device.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A plastic particle vibration screening device of this utility model includes a frame; a first screen frame and a second screen frame are slidably connected on the frame; a first screen plate is installed at the bottom of the first screen frame; a second screen plate is installed at the bottom of the second screen frame; multiple bases are fixedly connected to the bottom of both the first screen frame and the second screen frame; a connecting frame is fixedly connected to the side of the base; a connecting rod is hinged to the side of the connecting frame; a crankshaft is rotatably connected to the side of the frame; the end of the connecting rod is rotatably connected to the crankshaft; a motor is fixedly connected to the frame; and the output end of the motor is fixedly connected to the crankshaft.

[0006] Preferably, the bottom of the base has a through hole, and a guide post is slidably connected to the middle of the through hole, and the guide post is fixedly connected to the frame.

[0007] Preferably, a conveyor belt is installed at the bottom of the frame, a receiving tray is fixedly connected to the bottom of the frame, a discharge port is opened at the center of the bottom of the receiving tray, the discharge port is located above the conveyor belt, and the receiving tray is located at the bottom of the second screen plate.

[0008] Preferably, a baffle is fixedly connected to the bottom of the first screen frame, and a guide pipe is fixedly connected to the side end of the baffle, with the bottom end of the guide pipe located above the receiving tray.

[0009] Preferably, the first screen frame and the second screen frame are respectively provided with a first sliding groove and a second sliding groove inside, the first screen plate and the first sliding groove are slidably connected, the first screen plate and the first screen frame are detachably connected by fasteners, the second screen plate and the second sliding groove are slidably connected, and the second screen plate and the second screen frame are detachably connected by fasteners.

[0010] Preferably, both the first and second screen frames have guide plates fixed inside, and the ends of the guide plates are inclined.

[0011] The advantages of this utility model are:

[0012] 1. This utility model, by setting up a first screen frame, a second screen frame, a first screen plate, a second screen plate, a crankshaft, a motor, a connecting rod, and a connecting frame, allows the operator to align the first screen frame at the top of the equipment with the discharge port of the pelletizer. The granulated plastic particles then fall onto the first screen plate within the first screen frame. Larger plastic particles fall from the first screen plate, while particles meeting specifications pass through the second screen plate, and smaller plastic particles fall from the second screen plate. The mesh size of the first screen plate is matched to the required particle size of the plastic particles. During the screening process, the motor drives the crankshaft to rotate, which in turn drives the connecting frame via the connecting rod. The connecting frame then drives the first and second screen frames in reciprocating motion, thereby achieving rapid screening of the plastic particles and increasing the screening speed.

[0013] 2. This utility model, by setting up a receiving tray and a conveyor belt, relies on the receiving tray at the bottom of the frame during use. The receiving tray is used to collect unqualified plastic granules, which fall into the conveyor belt through the discharge port. The conveyor belt transports the unqualified plastic granules, making it convenient for workers to collect and remelt and extrude them. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the first screen frame structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the first sieve plate structure of this utility model;

[0018] Figure 4This is a schematic diagram of the first slide groove structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the connecting frame of this utility model.

[0020] In the diagram: 11. Frame; 12. First screen frame; 13. Second screen frame; 14. First screen plate; 15. Second screen plate; 16. Connecting frame; 17. Crankshaft; 18. Motor; 19. Connecting rod; 21. Guide column; 22. Base; 31. Conveyor belt; 32. Receiving tray; 41. Baffle; 42. Guide pipe; 51. First chute; 52. Second chute; 6. Guide plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] Specific implementation examples are given below.

[0023] Please see Figures 1-5 As shown, a vibrating screening device for plastic particles includes a frame 11; a first screen frame 12 and a second screen frame 13 are slidably connected to the frame 11. A first screen plate 14 is installed at the bottom of the first screen frame 12, and a second screen plate 15 is installed at the bottom of the second screen frame 13. Multiple bases 22 are fixedly connected to the bottom of both the first screen frame 12 and the second screen frame 13. A connecting frame 16 is fixedly connected to the side of the base 22, and a connecting rod 19 is hinged to the side of the connecting frame 16. A crank shaft 17 is rotatably connected to the side of the frame 11, and the end of the connecting rod 19 is rotatably connected to the crank shaft 17. A motor 18 is fixedly connected to the frame 11, and the output end of the motor 18 is fixedly connected to the crank shaft 17. A through hole is opened at the bottom of the base 22, and a guide post 21 is slidably connected to the middle of the through hole. The guide post 21 is fixedly connected to the frame 11.

[0024] In use, the operator aligns the first screen frame 12 on top of the equipment with the discharge port of the pelletizer. The pelletized plastic granules then fall onto the first screen plate 14 inside the first screen frame 12. Larger plastic granules fall off the first screen plate 14, while granules that meet the specifications are discharged from the second screen plate 15. Smaller plastic granules fall off the second screen plate 15. The mesh size of the first screen plate 14 is matched to the required particle size of the plastic granules. During the screening process, the crankshaft 17 is rotated by the motor 18. The crankshaft 17 drives the connecting frame 16 to move through the connecting rod 19. The connecting frame 16 drives the first screen frame 12 and the second screen frame 13 to reciprocate, thereby achieving rapid screening of plastic granules and improving the screening speed. In this embodiment, the length of the first screen frame 12 is greater than that of the second screen frame 13.

[0025] During use, the bottom of the first screen frame 12 and the second screen frame 13 are both fixed with bases 22. The bases 22 are supported by guide columns 21 on the frame 11 to slide, thereby realizing the sliding of the first screen frame 12 and the second screen frame 13 on the frame 11. The sliding method also includes sliding supported by guide rails.

[0026] Furthermore, such as Figures 1-5 As shown, a conveyor belt 31 is installed at the bottom of the frame 11, and a receiving tray 32 is fixedly connected to the bottom of the frame 11. A discharge port is opened at the center of the bottom of the receiving tray 32, and the discharge port is located above the conveyor belt 31. The receiving tray 32 is located at the bottom of the second screen plate 15. A baffle 41 is fixedly connected to the bottom of the first screen frame 12, and a guide pipe 42 is fixedly connected to the side end of the baffle 41. The bottom end of the guide pipe 42 is located above the receiving tray 32.

[0027] In use, the material receiving tray 32 at the bottom of the frame 11 is used to collect unqualified plastic granules and they fall into the conveyor belt 31 through the discharge port. The conveyor belt 31 transports the unqualified plastic granules, making it convenient for workers to collect and remelt and extrude them. A baffle 41 is installed at the end of the first screen frame 12, and a guide pipe 42 is fixed on the baffle 41 to guide the plastic granules to fall.

[0028] Furthermore, such as Figures 1-5 As shown, the first screen frame 12 and the second screen frame 13 are respectively provided with a first sliding groove 51 and a second sliding groove 52 inside. The first screen plate 14 and the first sliding groove 51 are slidably connected. The first screen plate 14 and the first screen frame 12 are detachably connected by fasteners. The second screen plate 15 and the second sliding groove 52 are slidably connected. The second screen plate 15 and the second screen frame 13 are detachably connected by fasteners. A guide plate 6 is fixedly connected inside the first screen frame 12 and the second screen frame 13. The end of the guide plate 6 is inclined.

[0029] In use, the first screen frame 12 and the second screen frame 13 are respectively provided with a first sliding groove 51 and a second sliding groove 52. The first screen plate 14 and the second screen plate 15 are respectively inserted into the first sliding groove 51 and the second sliding groove 52. Then, the first screen plate 14 and the second screen plate 15 are fixed by fasteners. With this detachable structure, it is easy to replace screen plates with different mesh sizes. With the material guide plate 6, the rolling path length of the plastic particles can be extended, which facilitates thorough screening.

[0030] Furthermore, such as Figures 1-5 As shown, the two ends of the receiving tray 32 are arranged in a trapezoidal structure.

[0031] Working principle: During use, the operator aligns the first screen frame 12 at the top of the equipment with the discharge port of the pelletizer. The pelletized plastic granules then fall onto the first screen plate 14 inside the first screen frame 12. Larger plastic granules fall out from the first screen plate 14, while granules that meet the specifications are discharged from the second screen plate 15. Smaller plastic granules fall out from the second screen plate 15. The mesh size of the first screen plate 14 is matched with the required particle size of the plastic granules. During the screening process, the motor 18 drives the crankshaft 17 to rotate. The crankshaft 17 drives the connecting frame 16 to move through the connecting rod 19. The connecting frame 16 drives the first screen frame 12 and the second screen frame 13 to reciprocate, thereby achieving rapid screening of plastic granules and improving the screening speed. In this embodiment, the length of the first screen frame 12 is greater than that of the second screen frame 13.

[0032] During use, bases 22 are fixedly connected to the bottom of both the first screen frame 12 and the second screen frame 13. Guide pillars 21 support the bases 22 for sliding on the frame 11, thus enabling the first screen frame 12 and the second screen frame 13 to slide on the frame 11. The sliding method also includes sliding supported by guide rails. During use, a receiving tray 32 at the bottom of the frame 11 collects defective plastic granules, which fall through the discharge port into the conveyor belt 31. The conveyor belt 31 transports the defective plastic granules for easy collection and remelting / extrusion by workers. A baffle 41 is installed at the end of 2, and a guide tube 42 is fixedly connected to the baffle 41. The guide tube 42 is used to guide the plastic particles to fall. In use, the first screen frame 12 and the second screen frame 13 are respectively provided with a first sliding groove 51 and a second sliding groove 52. The first screen plate 14 and the second screen plate 15 are respectively inserted into the first sliding groove 51 and the second sliding groove 52. Then, the first screen plate 14 and the second screen plate 15 are fixed by fasteners. With this detachable structure, it is easy to replace screen plates with different mesh sizes. With the guide plate 6, the rolling path length of the plastic particles can be extended, which facilitates thorough screening.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A vibrating screening device for plastic particles, comprising a frame (11); characterized in that: The frame (11) is slidably connected to a first screen frame (12) and a second screen frame (13). A first screen plate (14) is installed at the bottom of the first screen frame (12), and a second screen plate (15) is installed at the bottom of the second screen frame (13). Multiple bases (22) are fixedly connected to the bottom of both the first screen frame (12) and the second screen frame (13). A connecting frame (16) is fixedly connected to the side of the base (22). A connecting rod (19) is hinged to the side of the connecting frame (16). A crankshaft (17) is rotatably connected to the side of the frame (11). The end of the connecting rod (19) is rotatably connected to the crankshaft (17). A motor (18) is fixedly connected to the frame (11). The output end of the motor (18) is fixedly connected to the crankshaft (17).

2. The vibrating screening device for plastic particles according to claim 1, characterized in that: The bottom of the base (22) has a through hole, and a guide post (21) is slidably connected to the middle of the through hole. The guide post (21) is fixedly connected to the frame (11).

3. The vibrating screening device for plastic particles according to claim 2, characterized in that: A conveyor belt (31) is installed at the bottom of the frame (11), and a receiving tray (32) is fixedly connected to the bottom of the frame (11). A discharge port is opened at the center of the bottom of the receiving tray (32), the discharge port is located above the conveyor belt (31), and the receiving tray (32) is located at the bottom of the second screen plate (15).

4. The vibrating screening device for plastic particles according to claim 3, characterized in that: The bottom of the first screen frame (12) is fixedly connected to a baffle (41), and the side end of the baffle (41) is fixedly connected to a guide pipe (42), the bottom end of the guide pipe (42) is located above the receiving tray (32).

5. The vibrating screening device for plastic particles according to claim 4, characterized in that: The first screen frame (12) and the second screen frame (13) are respectively provided with a first sliding groove (51) and a second sliding groove (52). The first screen plate (14) and the first sliding groove (51) are slidably connected. The first screen plate (14) and the first screen frame (12) are detachably connected by fasteners. The second screen plate (15) and the second sliding groove (52) are slidably connected. The second screen plate (15) and the second screen frame (13) are detachably connected by fasteners.

6. The plastic particle vibration screening device according to claim 5, characterized in that: The first screen frame (12) and the second screen frame (13) are both fixed with guide plates (6), and the ends of the guide plates (6) are inclined.

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