Plastic particle screening device

Abstract

The utility model provides a plastic particle screening device, which relates to the technical field of plastic particle screening devices and comprises a fixed box, a frame, a first screen, a second screen and a cleaning component, the frame is arranged at one end of the fixed box and connected with the fixed box through an electric push rod, and the first screen is arranged at the top end of the frame and connected with the fixed box through an electric push rod. A second screen is arranged on the frame and located at the lower end of the first screen, a collecting frame is arranged at the lower end of the second screen and located at the bottom end of the frame, cleaning assemblies are arranged at the upper ends of the first screen, the second screen and the collecting frame, discharging holes are formed in one end of the first screen, one end of the second screen and one end of the collecting frame and located on the frame, and a base is arranged at the bottom end of the frame. And the frame is movably connected with the base. According to the device, the first screen, the second screen and the collecting frame can be automatically cleaned, so that manual cleaning is not needed, and labor force is saved.

Description

Technical Field

[0001] This utility model belongs to the technical field of plastic particle screening device, and more specifically, it relates to a plastic particle screening device. Background Technology

[0002] Plastic granules refer to granular plastics, generally classified into more than 200 types, with thousands of subcategories. Common plastic granules include general-purpose plastics, engineering plastics, and specialty plastics. General-purpose plastics include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, polyurethane, and other engineering plastics. Chinese Patent No. CN202323551635.4 discloses a screening device for TPE plastic granule production, including a base. The surface of the base is equipped with a multi-stage screening mechanism, which includes a fixed box, electric push rods, a frame, a first screen, a second screen, an impurity box, pulleys, a sliding groove, a discharge block, a threaded rod, a clamping plate, and bearings. The fixed box is located on one side of the base surface, and the sliding groove is located on the other side. Two sets of electric push rods are located inside the fixed box. This invention, when screening plastic granules, first pours the granules to be screened into the first screen, and then activates the electric push rods to push them back and forth, causing smaller granules to fall into the second screen, thus completing the granule screening. This avoids the problems of high cost and low efficiency of manual screening.

[0003] Based on the above, the inventors have discovered the following problem: the screening device for producing TPE plastic granules can automatically screen the granules, but when it is necessary to clean the screen, it is still troublesome to manually clean it with tools.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a plastic particle screening device in order to achieve a more practical purpose. Utility Model Content

[0005] The purpose and effectiveness of this utility model's plastic granule screening device are achieved through the following specific technical means:

[0006] A plastic granule screening device includes a fixed box, a frame, a first screen, a second screen, and a cleaning assembly. The frame is located at one end of the fixed box, and the frame is connected to the fixed box via an electric push rod. The first screen is located at the top of the frame, and the second screen is located on the frame and below the first screen. A collection frame is located at the bottom of the second screen and at the bottom of the frame. A cleaning assembly is located at the top of the first screen, the second screen, and the collection frame. A discharge hole is located at one end of the first screen, the second screen, and the collection frame and on the frame. A base is located at the bottom of the frame, and the frame is movably connected to the base.

[0007] Furthermore, the cleaning assembly includes a moving block, an electric lead screw, a moving groove, a connecting frame, a locking assembly, and a brush. Moving grooves are provided on both sides of the first screen, the second screen, and the collection frame. An electric lead screw is provided in the moving groove. A moving block is threaded onto the electric lead screw. A pair of moving blocks are connected to both ends of the connecting frame. A brush is connected to the connecting frame via a locking assembly.

[0008] Furthermore, the engaging assembly includes a slot, a locking element, a handle, a spring, a limiting post, and a limiting groove. The brush has a pair of slots at its upper end, and the connecting frame has a pair of chambers. Each chamber has a limiting groove on both sides. The limiting post extends through the chamber and into the limiting groove at both ends. The limiting post is fitted with a locking element and a spring. One end of the spring is connected to the inner wall of the chamber, and the other end of the spring is connected to the locking element. One end of the locking element penetrates the chamber and extends out of the lower end of the connecting frame to engage with the slot. The other end of the locking element penetrates the chamber and extends out of the upper end of the connecting frame, and is provided with a handle.

[0009] Furthermore, the brush is made of plastic.

[0010] Furthermore, the end of the second screen and the collecting frame away from the discharge hole is provided with a groove, which matches the connecting frame.

[0011] Furthermore, the moving trough, screen one, screen two, and collection frame are all inclined.

[0012] Furthermore, the connecting frame and the frame surface are provided with an anti-corrosion coating.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] After the plastic granules are screened, when it is necessary to clean screen one, screen two, and the collection frame, start the electric screw to rotate in the moving groove, which drives the moving block on it to move on the electric screw. This causes the connecting frame to move towards the discharge hole at the top of screen one, screen two, and the collection frame respectively. Then, the lower end of the brush pushes the waste material remaining at the top of screen one, screen two, and the collection frame to the receiving hole. At the same time, the electric push rod is started, which makes the frame shake and discharges the waste material from the receiving hole, thus cleaning screen one, screen two, and the collection frame.

[0015] By pulling a pair of handles towards the spring, the locking piece moves in the same direction on the limit post, causing the locking piece to move in the slot, thus releasing the locking piece from the slot. Then, by pulling the brush, the brush can be separated from the connecting frame, making it easy to replace the damaged brush.

[0016] The groove design allows the electric screw to be activated when the cleaning components are not in use, moving the connecting frame and its brush into the groove so as not to affect the plastic particles falling into the screen and collection frame. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a plastic particle screening device according to this utility model.

[0018] Figure 2 This is an enlarged schematic diagram showing the details of the cleaning component of a plastic particle screening device according to this utility model.

[0019] Figure 3 This is an enlarged cross-sectional schematic diagram of the locking component of a plastic particle screening device according to this utility model.

[0020] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0021] 1. Base; 2. Fixing box; 3. Handle; 4. Frame; 5. Screen 1; 6. Screen 2; 7. Collection frame; 8. Connecting frame; 9. Brush; 10. Chamber; 11. Limiting groove; 12. Electric lead screw; 13. Moving groove; 14. Limiting post; 15. Spring; 16. Card slot; 17. Card; 18. Groove; 19. Moving block. Detailed Implementation

[0022] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0023] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship 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 do not 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. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Example:

[0026] As attached Figure 1 To be continued Figure 3 As shown:

[0027] This utility model provides a plastic granule screening device, including a fixed box 2, a frame 4, a first screen 5, a second screen 6, and a cleaning component. The fixed box 2 is provided with a frame 4 at one end, and the frame 4 is connected to the fixed box 2 by an electric push rod. The first screen 5 is provided at the top of the frame 4, and the second screen 6 is provided on the frame 4 and below the first screen 5. The second screen 6 is provided at the bottom of the frame 4 and below the second screen 6. The cleaning component is provided at the top of the first screen 5, the second screen 6, and the collection frame 7. The first screen 5, the second screen 6, and the collection frame 7 are all provided with a discharge hole at one end of the frame 4. The bottom of the frame 4 is provided with a base 1, and the frame 4 is movably connected to the base 1.

[0028] The electric push rod drives the frame 4 to shake, thereby screening the plastic particles into the prior art design of the aforementioned cited patent.

[0029] The cleaning assembly includes a moving block 19, an electric screw 12, a moving groove 13, a connecting frame 8, a locking assembly, and a brush 9. The first screen 5, the second screen 6, and the collection frame 7 are all provided with moving grooves 13 on both sides. The moving groove 13 is provided with an electric screw 12. The moving block 19 is threadedly connected to the electric screw 12. A pair of moving blocks 19 are connected to both ends of the connecting frame 8. The brush 9 is connected to the connecting frame 8 through the locking assembly.

[0030] After the plastic granules are screened, when it is necessary to clean screen 5, screen 6, and collection frame 7, start the electric screw 12 to rotate in the moving groove 13, which drives the moving block 19 on the electric screw 12 to move. This causes the connecting frame 8 to move towards the discharge hole at the upper end of screen 5, screen 6, and collection frame 7 respectively. Then, the lower end of the brush 9 pushes the waste material remaining at the upper end of screen 5, screen 6, and collection frame 7 to the collection hole. At the same time, the electric push rod is started, which makes the frame 4 shake, so that the waste material is discharged from the collection hole, thus cleaning screen 5, screen 6, and collection frame 7.

[0031] The engaging assembly includes a slot 16, a locking element 17, a handle 3, a spring 15, a limiting post 14, and a limiting groove 11. The brush 9 has a pair of slots 16 on its upper end, and the connecting frame 8 has a pair of chambers 10. Each chamber 10 has a limiting groove 11 on both sides. The limiting post 14 extends through the chamber 10 and into the limiting groove 11 at both ends. The limiting post 14 is fitted with a locking element 17 and a spring 15. One end of the spring 15 is connected to the inner wall of the chamber 10, and the other end of the spring 15 is connected to the locking element 17. One end of the locking element 17 passes through the chamber 10 and extends out of the lower end of the connecting frame 8 to engage with the slot 16. The other end of the locking element 17 passes through the chamber 10 and extends out of the upper end of the connecting frame 8 and is provided with a handle 3.

[0032] By pulling a pair of handles 3 towards the spring 15, the locking piece 17 moves in the same direction on the limiting post 14, causing the locking piece 17 to move in the slot 16, thus releasing the locking piece 17 from the slot 16. Then, by pulling the brush 9, the brush 9 can be separated from the connecting frame 8, and the damaged brush 9 can be easily replaced.

[0033] The brush 9 is made of plastic.

[0034] Among them, the end of the screen 6 and the collection frame 7 away from the discharge hole is provided with a groove 18, and the groove 18 matches the connecting frame 8;

[0035] The groove 18 design allows the electric screw 12 to be activated when the cleaning components are not in use, moving the connecting frame 8 and the brush 9 thereon into the groove 18, thus not affecting the plastic particles falling into the screen 6 and the collection frame 7.

[0036] The moving trough 13, screen 1 5, screen 2 6 and collecting frame 7 are all inclined.

[0037] With the inclined design of screen 5, screen 6, and collection frame 7, plastic particles of different sizes at the top of screen 5, screen 6, and collection frame 7 can easily flow out through the discharge hole. With the inclined design of the moving groove 13, when the cleaning component is activated, the lower end of the brush 9 moves along the trajectory of the moving groove 13, and the upper surface of screen 5, screen 6, and collection frame 7 is always in contact with it, thereby achieving the effect of cleaning screen 5, screen 6, and collection frame 7.

[0038] The connecting frame 8 and the frame 4 are provided with anti-corrosion coatings.

[0039] The anti-corrosion coating design prevents the connecting frame 8 and frame 4 from being oxidized and corroded, thereby enhancing their service life.

[0040] The specific usage and function of this embodiment are as follows:

[0041] When the plastic granules are screened and it is necessary to clean screen 5, screen 6, and collection frame 7, the electric screw 12 is activated to rotate within the moving groove 13, driving the moving block 19 on the screw 12 to move. This causes the connecting frame 8 to move towards the discharge hole at the upper ends of screen 5, screen 6, and collection frame 7. The lower end of the brush 9 then pushes the remaining waste material at the upper ends of screen 5, screen 6, and collection frame 7 to the collection hole. Simultaneously, the electric push rod is activated, causing the frame 4 to shake, discharging the waste material from the collection hole. This completes the cleaning of screen 5, screen 6, and collection frame 7. Cleaning of frame 7: By pulling a pair of handles 3 towards the spring 15, the locking piece 17 moves in the same direction on the limiting post 14, causing the locking piece 17 to move in the slot 16, thus releasing the locking piece 17 from the slot 16. Then, pull the brush 9 to separate the brush 9 from the connecting frame 8, making it easy to replace the damaged brush 9. The groove 18 is designed so that when the cleaning components are not in use, the electric screw 12 can be activated to move the connecting frame 8 and the brush 9 on it into the groove 18, thus not affecting the plastic particles falling into the screen 6 and the collection frame 7.

[0042] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A plastic granule screening device, comprising a fixed box (2), a frame (4), a first screen (5), a second screen (6), and a cleaning assembly, characterized in that: The fixed box (2) is provided with a frame (4) at one end. The frame (4) is connected to the fixed box (2) by an electric push rod. The top of the frame (4) is provided with a screen (5). The frame (4) is provided with a screen (6) at the bottom of the screen (5). The bottom of the screen (6) is provided with a collection frame (7). The screen (5), screen (6) and collection frame (7) are all provided with cleaning components at their upper ends. The screen (5), screen (6) and collection frame (7) are all provided with discharge holes at one end of the screen (5), screen (6) and collection frame (7) on the frame (4). The bottom of the frame (4) is provided with a base (1). The frame (4) and base (1) are movably connected.

2. The plastic granule screening device as described in claim 1, characterized in that: The cleaning assembly includes a moving block (19), an electric screw (12), a moving groove (13), a connecting frame (8), a locking assembly, and a brush (9). Moving grooves (13) are provided on both sides of the first screen (5), the second screen (6), and the collection frame (7). An electric screw (12) is provided in the moving groove (13). The moving block (19) is threaded onto the electric screw (12). A pair of moving blocks (19) are connected to both ends of the connecting frame (8). The brush (9) is connected to the connecting frame (8) through the locking assembly.

3. The plastic granule screening device as described in claim 2, characterized in that: The engaging assembly includes a slot (16), a locking element (17), a handle (3), a spring (15), a limiting post (14), and a limiting groove (11). A pair of slots (16) are provided on the upper end of the brush (9). A pair of chambers (10) are provided on the connecting frame (8). Limiting grooves (11) are provided on both sides of each chamber (10). The two ends of the limiting post (14) pass through the chamber (10) and extend into the limiting groove (11). A locking piece (17) and a spring (15) are fitted on the positioning post (14). One end of the spring (15) is connected to the inner wall of the chamber (10), and the other end of the spring (15) is connected to the locking piece (17). One end of the locking piece (17) passes through the chamber (10) and extends out of the lower end of the connecting frame (8) to engage with the locking groove (16). The other end of the locking piece (17) passes through the chamber (10) and extends out of the upper end of the connecting frame (8) and is provided with a handle (3).

4. The plastic granule screening device as described in claim 3, characterized in that: The brush (9) is made of plastic.

5. The plastic granule screening device as described in claim 4, characterized in that: The screen (6) and the collection frame (7) are provided with a groove (18) at the end away from the discharge hole, and the groove (18) matches the connecting frame (8).

6. The plastic granule screening device as described in claim 5, characterized in that: The moving trough (13), screen one (5), screen two (6) and collection frame (7) are all inclined.

7. The plastic granule screening device as described in claim 6, characterized in that: The connecting frame (8) and the frame (4) are provided with anti-corrosion coating.

Images