Vibrating type plastic particle multi-stage screening device

Abstract

The utility model discloses a vibration type plastic particle multistage screening device which comprises a screen drum, a screen frame and a vibration motor, the screen frame is arranged on the lower side of the screen frame, the inner wall of the screen drum is rotationally connected with a transverse stirring rod, one end of the stirring rod penetrates through the side wall of the screen drum and extends to the outer side, and the outer side end of the stirring rod is connected with a first transmission wheel. A first transmission wheel is rotatably connected to the side wall of the screen frame, a second transmission wheel is rotatably connected to the side wall of the screen frame, the first transmission wheel is matched with the second transmission wheel, rotating teeth are connected to the inner wall of the second transmission wheel and correspond to the side wall of the screen drum in position, a set of scraping plates are connected to the outer side of the screen drum, and reset springs are connected between the set of scraping plates and the side wall of the screen drum. The plastic particles are screened step by step, so that the plastic particles with various diameter specifications are screened at a time, the plastic particle screening efficiency is improved, meanwhile, the stirring rod and the screen drum rotate reversely, the stirring sufficient degree is improved, the screen drum drives the scraper to stir the plastic particles on the upper side of the screen frame, and then the screening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic particle screening, and in particular to a vibrating multi-stage plastic particle screening device. Background Technology

[0002] Screening devices utilize the relative motion between granular materials and the screen surface to allow some particles to pass through the screen holes, separating the material into different grades according to particle size. The screening process is generally continuous. After the raw material is fed onto the screening machine, materials smaller than the screen hole size pass through the screen holes and are called undersize products, while materials larger than the screen hole size are continuously discharged from the screen surface and are called oversize products. In the process of processing plastic granules, the processed plastic granules may be of different sizes, so it is necessary to screen the processed products to separate the plastic granules according to their size for later use. However, the structure of screening devices is relatively simple, making it difficult to screen plastic granules of multiple diameters at the same time, which affects the working efficiency of plastic granule screening.

[0003] To address these issues, we propose a vibrating multi-stage screening device for plastic particles. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a vibrating multi-stage screening device for plastic particles.

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

[0006] A vibrating multi-stage screening device for plastic granules includes a screen cylinder and a screen frame, and a vibrating motor. The screen frame is located on the lower side of the screen cylinder. A transverse stirring rod is rotatably connected to the inner wall of the screen cylinder. One end of the stirring rod extends through the side wall of the screen cylinder to the outer side, and a transmission wheel is connected to the outer end of the stirring rod. A second transmission wheel is rotatably connected to the side wall of the screen frame. The first and second transmission wheels cooperate with each other. A rotating tooth is connected to the inner wall of the second transmission wheel. The rotating tooth corresponds to the position of the side wall of the screen cylinder. A set of scrapers is connected to the outer side of the screen cylinder, and a return spring is connected between the set of scrapers and the side wall of the screen cylinder.

[0007] Preferably, both the screen cylinder and the sidewalls of the screen frame are designed as screen meshes, and the specifications of the screen frame and the screen cylinder are matched.

[0008] Preferably, a set of T-shaped blades are connected to the outer wall of the stirring rod, and the outer wall surface of the set of blades is covered with a soft padding layer.

[0009] Preferably, a transmission belt is fitted on the outer side of the first transmission wheel and the second transmission wheel.

[0010] Preferably, the screen cylinder has a toothed groove on the side wall corresponding to the position of the rotating tooth, and the rotating tooth meshes with the toothed groove.

[0011] Preferably, the scraper has a hollow design and the outer sidewall of the scraper is covered with a brush layer.

[0012] Preferably, a telescopic rod is provided on the inner side of the reset spring, and the two ends of the telescopic rod are respectively connected to the scraper and the side wall of the screen cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In use, this invention utilizes the combined action of the screen cylinder and screen frame to perform step-by-step screening of plastic granules, thereby separating plastic granules of various diameters in a single pass and improving screening efficiency. Simultaneously, the combined action of transmission wheels one and two, along with the synchronous belt, drives the stirring rod to rotate and agitate the plastic granules, ensuring a smoother screening process. Furthermore, the coaxial relationship between the rotating teeth and transmission wheel two, with the teeth meshing, drives the stirring rod and screen cylinder to rotate in opposite directions, enhancing the thoroughness of agitation and further improving screening efficiency. Additionally, the rotation of the screen cylinder moves the scraper, which agitates the plastic granules on the upper side of the screen frame, further improving the screening efficiency of the screen frame. Attached Figure Description

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

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

[0017] Figure 3 This is a schematic diagram of the structure of this utility model from below;

[0018] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 5 This is a schematic diagram of the scraper and its auxiliary structures of this utility model.

[0020] In the diagram: 1-sieve cylinder, 2-sieve frame, 3-stirring rod, 301-blade, 4-drive wheel one, 5-drive wheel two, 501-drive belt, 6-rotating tooth, 601-tooth groove, 7-scraper, 8-reset spring, 801-telescopic rod. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] 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.

[0025] Reference Figure 1-5 A vibrating multi-stage screening device for plastic granules includes a screen cylinder 1, a screen frame 2, and a vibrating motor. The power output end of the vibrating motor is in contact with the side wall of the screen frame 2. When the vibrating motor runs, it drives the screen frame 2 to vibrate, thereby improving its screening efficiency. The screen frame 2 is located on the lower side of the screen cylinder 1. The side walls of both the screen cylinder 1 and the screen frame 2 are screen mesh designs. One end of the screen cylinder 1 is an open design, which can be opened and closed to pick up and put in the plastic granules inside. The screen frame 2 and the screen cylinder 1 are matched in specifications. A transverse stirring rod 3 is rotatably connected to the inner wall of the screen cylinder 1. A set of T-shaped blades 301 are connected to the outer wall of the stirring rod 3. The outer surface of the set of blades 301 is covered with a soft padding layer to avoid damaging the structure of the plastic granules.

[0026] One end of the stirring rod 3 extends through the side wall of the sieve cylinder 1 to the outside, and the outer end of the stirring rod 3 is connected to the first transmission wheel 4. The second transmission wheel 5 is rotatably connected to the side wall of the sieve frame 2. A drive motor is installed on the outside of the second transmission wheel. The power output end of the drive motor is connected to the cable of the second transmission wheel. The first transmission wheel 4 and the second transmission wheel 5 cooperate with each other. A transmission belt 501 is sleeved on the outside of the first transmission wheel 4 and the second transmission wheel 5, which drives the two to rotate synchronously.

[0027] The inner wall of the transmission wheel 2 5 is connected to a rotating tooth 6. The transmission wheel 2 5 and the rotating tooth 6 are coaxially designed. The rotating tooth 6 is positioned opposite to the side wall of the screen cylinder 1. The side wall of the screen cylinder 1 corresponding to the position of the rotating tooth 6 is provided with a tooth groove 601. The rotating tooth 6 meshes with the tooth groove 601, driving the stirring rod 3 and the screen cylinder 1 to rotate in opposite directions, thereby improving the degree of stirring and thus improving the efficiency of screening.

[0028] A set of scrapers 7 is connected to the outside of the screen cylinder 1. The scrapers 7 have a hollow design and the outer side wall of the scraper 7 is covered with a brush layer. The scrapers 7 move to move the plastic particles on the upper side of the screen frame 2, thereby improving the screening efficiency of the screen frame 2. A set of scrapers 7 is connected to the side wall of the screen cylinder 1 by a return spring 8, which drives the scrapers 7 to spring outward so that they contact the side wall of the screen frame 2. A telescopic rod 801 is provided inside the return spring 8. The two ends of the telescopic rod 801 are connected to the scrapers 7 and the side wall of the screen cylinder 1, respectively.

[0029] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

Claims

1. A vibrating multi-stage screening device for plastic granules, comprising a screen cylinder (1) and a screen frame (2), and a vibrating motor, wherein the screen frame (2) is disposed on the lower side of the screen cylinder (1), characterized in that, A horizontal stirring rod (3) is rotatably connected to the inner wall of the sieve cylinder (1). One end of the stirring rod (3) extends through the side wall of the sieve cylinder (1) to the outside. A transmission wheel (4) is connected to the outer end of the stirring rod (3). A transmission wheel (5) is rotatably connected to the side wall of the sieve frame (2). The transmission wheel (4) and the transmission wheel (5) cooperate with each other. A rotating tooth (6) is connected to the inner wall of the transmission wheel (5). The rotating tooth (6) is positioned opposite to the side wall of the sieve cylinder (1). A set of scrapers (7) is connected to the outside of the sieve cylinder (1). A return spring (8) is connected between the set of scrapers (7) and the side wall of the sieve cylinder (1).

2. The vibrating multi-stage screening device for plastic particles according to claim 1, characterized in that, The side walls of the sieve cylinder (1) and the sieve frame (2) are both designed as sieve meshes, and the specifications of the sieve frame (2) and the sieve cylinder (1) are matched.

3. The vibrating multi-stage screening device for plastic particles according to claim 1, characterized in that, A set of T-shaped blades (301) are connected to the outer wall of the stirring rod (3), and the outer wall surface of the set of blades (301) is covered with a cushion layer.

4. The vibrating multi-stage screening device for plastic particles according to claim 1, characterized in that, The transmission wheel one (4) and transmission wheel two (5) are fitted with transmission belts (501).

5. The vibrating multi-stage screening device for plastic particles according to claim 1, characterized in that, The screen cylinder (1) has a toothed groove (601) on its side wall corresponding to the position of the rotating tooth (6), and the rotating tooth (6) meshes with the toothed groove (601).

6. The vibrating multi-stage screening device for plastic particles according to claim 1, characterized in that, The scraper (7) has a hollow design and the outer sidewall of the scraper (7) is covered with a brush layer.

7. The vibrating multi-stage screening device for plastic particles according to claim 1, characterized in that, The return spring (8) is provided with a telescopic rod (801) inside, and the two ends of the telescopic rod (801) are respectively connected to the scraper (7) and the side wall of the screen cylinder (1).

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