A plastic pellet screening and impurity removal device

Abstract

This utility model relates to a plastic granule screening and impurity removal device, including an impurity removal box. A fixing block is fixedly installed at the bottom of the screening box, a backing plate is hinged to the bottom of the fixing block, a slide rail is fixedly installed at the bottom of the backing plate, a slide rod is slidably installed inside the slide rail, a swing rod is rotatably installed outside the slide rod, a sliding sleeve is slidably installed outside the swing rod, and a connecting rod is hinged to the outside of the sliding sleeve. A motor is fixedly installed inside the impurity removal box, and a limit rod is fixedly installed at the bottom of the screening box. This plastic granule screening and impurity removal device, when the motor is turned on, adjusts the thickness of the falling plastic granules by controlling the gap size through the connecting rod, sliding sleeve, swing rod, slide rod, slide rail, backing plate, and guide plate. The thickness of the falling plastic granules is adapted to the airflow of the fan, which can effectively remove dust mixed in with the plastic granules. The filter screen prevents the plastic granules from being blown out of the impurity removal box during the impurity removal process.

Description

Technical Field

[0001] This utility model relates to the field of plastic pellet technology, specifically to a plastic pellet screening and impurity removal device. Background Technology

[0002] Plastic granules are short for plastic pellets. They are raw materials for storing, transporting, and processing plastics in a semi-finished state. Plastics are a type of polymer material. They can be made from petroleum as a raw material, such as ethylene, propylene, and vinyl chloride. The molecules of these substances can react with each other under certain conditions to form compounds with very large molecular weights, i.e., polymers.

[0003] A search revealed a plastic granule screening and impurity removal device disclosed in Chinese utility model patent CN218256134U. This utility model patent includes a box body, a feeding pipe fixedly connected to the top of the box body, a feeding hopper fixedly connected to the top of the feeding pipe, a cover plate movably connected to one side of the box body, and a handle fixedly connected to one side of the cover plate. A fine filter screen is installed, and a screening chamber is fixedly connected to the outside of the fine filter screen. A vibrating rod is fixedly connected to one side of the screening chamber, and a connecting rod is movably connected to the bottom of the screening chamber. A vibrating device is fixedly connected to the bottom of each connecting rod, and the box body is fixedly connected to the bottom of the vibrating device. A motor is fixedly connected to one side inside the box body, and a lever is fixedly connected to the output end of the motor. When the motor is turned on, the lever rotates, striking the vibrating rod. Through the vibrating device, the screening chamber vibrates and screens, removing smaller impurities from the plastic granules inside the screening chamber through the fine filter screen. This effectively improves the quality of the produced plastic granules, reduces manual screening time, and increases production capacity.

[0004] In the above comparative examples, the dust mixed with the plastic granules is removed by the automatic falling of plastic granules in conjunction with the exhaust fan. However, the above comparative examples lack a structure to control the quantitative amount of plastic granules falling. When the thickness of the automatically falling plastic granules is relatively large, it can easily affect the effect of removing impurities from the plastic granules. Therefore, a plastic granule screening and impurity removal device is proposed to solve the above problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a plastic granule screening and impurity removal device, which has advantages such as controlling the feeding of plastic granules. It solves the problem in the above comparative example where the automatic falling of plastic granules is combined with a fan to remove dust mixed with the plastic granules. However, the above comparative example lacks a structure to control the quantitative amount of plastic granules falling. When the thickness of the automatically falling plastic granules is relatively large, it can easily affect the impurity removal effect of the plastic granules.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plastic pellet screening and impurity removal device, comprising an impurity removal box, wherein a screening box is installed inside the impurity removal box, and a quantitative structure is installed at the bottom of the screening box;

[0007] The quantitative structure includes a fixed block, a fixed block is fixedly installed at the bottom of the screening box, a backing plate is hinged to the bottom of the fixed block, a slide rail is fixedly installed at the bottom of the backing plate, a slide rod is slidably installed inside the slide rail, a swing rod is rotatably installed outside the slide rod, a sliding sleeve is slidably installed outside the swing rod, a connecting rod is hinged to the outside of the sliding sleeve, a motor is fixedly installed inside the impurity removal box, and a limit rod is fixedly installed at the bottom of the screening box.

[0008] Furthermore, a filter plate is fixedly installed inside the screening box, a guide plate is fixedly installed at the bottom of the screening box, a limit frame is fixedly installed on the inner wall of the impurity removal box, a fan is fixedly installed on the outside of the limit frame, and a filter screen is fixedly installed on the inner wall of the impurity removal box.

[0009] Furthermore, the top of the impurity removal box is open, the inner wall of the screening box is inclined, and the bottom of the screening box has a discharge port.

[0010] Furthermore, a slot is provided on the left side of the abutment, and a guide rail is provided on the outside of the guide plate, with the slot of the abutment fitting into the guide rail on the outside of the guide plate.

[0011] Furthermore, the swing rod passes through the sliding sleeve and is slidably connected to the sliding sleeve, and the output shaft of the motor passes through the impurity removal box and is fixedly connected to the connecting rod.

[0012] Furthermore, the swing rod is hinged to the limiting rod, the fan and the filter screen are distributed in a relative state, and the front of the impurity removal box has a collection port.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] This plastic pellet screening and impurity removal equipment, when the motor is turned on, uses a connecting rod, sliding sleeve, swing rod, sliding bar, slide rail, stop plate, and guide plate to control the size of the gap, thereby adjusting the thickness of the plastic pellets as they fall. The thickness of the plastic pellets as they fall is adapted to the wind force of the fan, which can effectively remove dust mixed in with the plastic pellets. The filter screen prevents the plastic pellets from being blown out of the impurity removal box during the impurity removal process. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0017] Figure 3 This is an enlarged view of the quantitative structure of this utility model;

[0018] Figure 4This is a perspective view of the guide plate of this utility model.

[0019] In the diagram: 1. Impurity removal box; 2. Screening box; 3. Filter plate; 4. Guide plate; 5. Quantitative structure; 501. Fixing block; 502. Support plate; 503. Slide rail; 504. Slide rod; 505. Swing rod; 506. Sliding sleeve; 507. Connecting rod; 508. Motor; 509. Limiting rod; 6. Limiting frame; 7. Fan; 8. Filter screen. Detailed Implementation

[0020] 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 protection scope of the present utility model.

[0021] Please see Figure 1-4 The plastic pellet screening and impurity removal device in this embodiment includes an impurity removal box 1, a screening box 2 installed inside the impurity removal box 1, a filter plate 3 fixedly installed inside the screening box 2, a guide plate 4 fixedly installed at the bottom of the screening box 2, a quantitative structure 5 installed at the bottom of the screening box 2, a limit frame 6 fixedly installed on the inner wall of the impurity removal box 1, a fan 7 fixedly installed on the outside of the limit frame 6, and a filter screen 8 fixedly installed on the inner wall of the impurity removal box 1.

[0022] The quantitative structure 5 includes a fixed block 501. The bottom of the screening box 2 is fixedly installed with the fixed block 501. The bottom of the fixed block 501 is hinged with a backing plate 502. The bottom of the backing plate 502 is fixedly installed with a slide rail 503. The slide rail 503 is slidably installed with a slide rod 504 inside. The slide rod 504 is rotatably installed with a swing rod 505 outside. The swing rod 505 is slidably installed with a sliding sleeve 506 outside. The sliding sleeve 506 is hinged with a connecting rod 507 outside. The impurity removal box 1 is fixedly installed with a motor 508 inside. The bottom of the screening box 2 is fixedly installed with a limit rod 509.

[0023] exist Figure 2 When the abutment plate 502 and the guide plate 4 are tightly attached, the screened plastic particles will remain stationary inside the screening box 2. The front and rear sides of the guide plate 4 are also attached to the front and rear sides of the abutment plate 502.

[0024] exist Figure 2 In the middle, the fan 7 and the filter screen 8 are distributed in a relative state. A vent is opened on the right side of the impurity removal box 1, and the limiting frame 6 is located inside the vent. Air convection is formed between the vent and the filter screen 8, which facilitates the removal of impurities from the plastic particles.

[0025] exist Figure 2In the middle, the front of the impurity removal box 1 is provided with a collection port. The collected container is placed into the bottom of the impurity removal box 1 through the collection port. A collection plate is installed below the fan 7 and the filter screen 8. The collection plate facilitates the collection of plastic granules that have completed impurity removal.

[0026] During implementation, the following steps are performed: When in use, the plastic granules enter the screening box 2 from the top of the impurity removal box 1. The plastic granules are screened by passing through the filter plate 3. By turning on the motor 508, the thickness of the plastic granules when they fall can be adjusted. The thickness of the plastic granules when they fall is matched with the wind force of the fan 7, which can effectively remove the dust mixed in with the plastic granules. The filter screen 8 prevents the plastic granules from being blown out of the impurity removal box 1 during impurity removal.

[0027] In summary, this plastic granule screening and impurity removal equipment allows plastic granules to enter the screening box 2 from the top of the impurity removal box 1. The plastic granules pass through the filter plate 3, thus completing the screening process. The screened plastic granules adhere to the side wall opposite the guide plate 4 and the abutment plate 502. By activating the motor 508, the connecting rod 507 swings, causing the sliding sleeve 506 to change position. Based on the movement of the swing rod 505 and the sliding of the sliding rod 504 within the slide rail 503, a gap is created between the abutment plate 502 and the guide plate 4. This gap is controlled by the control unit. The size of the gap allows for adjustment of the thickness of the falling plastic pellets. The thickness of the falling plastic pellets is matched with the air force of the fan 7, which can effectively remove dust mixed in with the plastic pellets. The filter screen 8 prevents the plastic pellets from being blown out of the impurity removal box 1 during impurity removal. This solves the problem in the above comparative example where the automatic falling of plastic pellets, combined with the exhaust fan 7, removes impurities mixed with dust from the plastic pellets. However, the above comparative example lacks a structure to control the quantitative amount of falling plastic pellets. When the thickness of the automatically falling plastic pellets is too thick, it can easily affect the impurity removal effect of the plastic pellets.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic pellet screening and impurity removal device, comprising an impurity removal box (1), characterized in that: The inside of the impurity removal box (1) is equipped with a screening box (2), and the bottom of the screening box (2) is equipped with a quantitative structure (5). The quantitative structure (5) includes a fixed block (501), the bottom of the screening box (2) is fixedly installed with the fixed block (501), the bottom of the fixed block (501) is hinged with a backing plate (502), the bottom of the backing plate (502) is fixedly installed with a slide rail (503), the slide rail (503) is slidably installed with a slide rod (504) inside, the slide rod (504) is rotatably installed with a swing rod (505) outside, the swing rod (505) is slidably installed with a sliding sleeve (506) outside, the sliding sleeve (506) is hinged with a connecting rod (507) outside, the impurity removal box (1) is fixedly installed with a motor (508), and the bottom of the screening box (2) is fixedly installed with a limit rod (509).

2. The plastic granule screening and impurity removal equipment according to claim 1, characterized in that: The filter plate (3) is fixedly installed inside the screening box (2), the guide plate (4) is fixedly installed at the bottom of the screening box (2), the limit frame (6) is fixedly installed on the inner wall of the impurity removal box (1), the fan (7) is fixedly installed on the outside of the limit frame (6), and the filter screen (8) is fixedly installed on the inner wall of the impurity removal box (1).

3. The plastic granule screening and impurity removal equipment according to claim 2, characterized in that: The top of the impurity removal box (1) is open, the inner wall of the screening box (2) is inclined, and the bottom of the screening box (2) has a discharge port.

4. The plastic granule screening and impurity removal equipment according to claim 2, characterized in that: The left side of the abutment (502) is provided with a slot, and the outside of the guide plate (4) is provided with a guide rail. The slot of the abutment (502) fits into the guide rail outside the guide plate (4).

5. The plastic granule screening and impurity removal equipment according to claim 1, characterized in that: The swing rod (505) passes through the sliding sleeve (506) and is slidably connected to the sliding sleeve (506). The output shaft of the motor (508) passes through the impurity removal box (1) and is fixedly connected to the connecting rod (507).

6. The plastic pellet screening and impurity removal equipment according to claim 2, characterized in that: The swing rod (505) is hinged to the limiting rod (509), the fan (7) and the filter screen (8) are distributed in a relative state, and the front of the impurity removal box (1) is provided with a collection port.

Images