A plastic particle impurity removing device for plastic processing

Abstract

The utility model relates to the technical field of plastic particle impurity removal equipment, especially to a plastic particle impurity removal device for plastic processing. Its technical scheme comprises a box body, a material guide groove arranged in the box body for material sliding, and a flushing groove arranged in one end of the box body. The flushing groove is used to receive the material sliding from the material guide groove, and a plurality of fixed brushes are arranged on the flushing groove. The utility model uses the cooperation of the box body, driving plate, combing and scraping material needle and other components. When the device is used, the plastic particles enter the flushing groove through the feeding hopper and the material guide groove, and the water inlet pipe and the spray pipe spray water first. Then, the motor drives the rotating shaft and the clamping sleeve to drive the cleaning brush and the fixed brush to rub and remove impurities. The first and second combing and scraping material needles have a smaller spacing than the particle diameter, which can scrape the embedded particles in the bristles and comb the bristles to avoid knotting. The scraped particles are discharged through the discharge groove, solving the problems of particle embedding, poor discharge and poor brushing effect.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic granule impurity removal equipment, and in particular to a plastic granule impurity removal device for plastic processing. Background Technology

[0002] Currently, plastic granules are the preferred raw material for plastic processing due to their excellent flowability, component stability, and ease of storage, transportation, and metering, making them suitable for injection molding and extrusion processes. However, during production, storage, transportation, or feeding, plastic granules are prone to contamination with impurities such as dust, metal shavings, and foreign plastic fragments. If these impurities directly enter processing equipment, they can lead to quality problems such as scratches, bubbles, and insufficient strength in the finished product. They can also easily damage equipment components such as screws and molds, affecting production efficiency. Therefore, to ensure finished product quality, protect processing equipment, and meet compliance requirements for certain products, plastic granules typically require impurity removal treatment before use.

[0003] For example, Chinese Patent No. CN221066912U discloses a plastic granule impurity removal device for plastic processing. This device is equipped with a fixed brush and a rotating cleaning brush. During operation, the two brushes move relative to each other, rubbing the surface of the plastic granules to remove impurities. At the same time, the rotating cleaning brush also participates in the material discharge. However, this cleaning method has obvious shortcomings: if the gaps between the brush bristles are too large, plastic granules can easily become embedded in the bristles, making it impossible to completely and smoothly discharge them; and the brushes are prone to tangling after long-term use, which affects the cleaning effect. Utility Model Content

[0004] The purpose of this invention is to address the problems existing in the background technology by proposing a plastic particle impurity removal device for plastic processing.

[0005] The technical solution of this utility model is as follows: A plastic granule impurity removal device for plastic processing includes a box and a guide trough disposed inside the box for material to slide down. A rinsing trough is also provided inside one end of the box for receiving material sliding down from the guide trough. Multiple fixed brushes are provided on the rinsing trough. Multiple cleaning brushes arranged in a circular array are also provided inside one end of the box. The device further includes: a rotating shaft disposed inside one end of the box, with a retainer fixedly fitted on the rotating shaft. Multiple driving plates corresponding to the cleaning brushes are fixedly connected to the outer wall of the retainer. Multiple first combing and scraping needles arranged linearly and rotating to comb the fixed brushes are fixedly connected to the driving plates. The distance between the first combing and scraping needles is smaller than the size of the material particles. A scraping and combing mechanism is installed on the inner wall of one end of the box, and the scraping and combing mechanism is correspondingly arranged with the cleaning brushes.

[0006] Optionally, the combing mechanism includes a support plate fixedly connected to the inner wall of one end of the housing. Multiple second combing and scraping needles arranged in a linear pattern and connected to a rotating cleaning brush are fixedly connected to the support plate. The second combing and scraping needles are staggered with the first combing and scraping needles on the drive plate. The distance between the second combing and scraping needles is smaller than the size of the material particles.

[0007] Optionally, the box body is provided with a discharge chute at one end near the support plate, and the support plate and the discharge chute are vertically opposite each other.

[0008] Optionally, a drain pipe is provided at one end of the box body near the discharge trough.

[0009] Optionally, a water inlet pipe is provided at one end of the box body near the discharge trough, and one end of the water inlet pipe is fixedly connected to a spray pipe aligned with the rotating shaft after passing through the box body.

[0010] Optionally, each cleaning brush is fixedly connected to a mounting plate, and the mounting plate is fixedly connected to the outer wall of the sleeve.

[0011] Optionally, a feed hopper is provided at the end of the housing away from the water inlet pipe.

[0012] Optionally, a motor is fixedly connected to the outer wall of the box near the drain pipe. The output shaft of the motor passes through the box and is fixedly connected to the end of the rotating shaft. The end of the rotating shaft away from the motor is rotatably connected to the inner wall of the box.

[0013] In summary, this application includes at least one of the following beneficial technical effects:

[0014] This invention utilizes the cooperation of components such as the housing, drive plate, and combing and scraping needles. When in use, plastic granules enter the rinsing tank through the feed hopper and guide chute, where water is first sprayed from the inlet pipe and spray nozzle for rinsing. Subsequently, the motor drives the rotating shaft and clamping sleeve to cause the cleaning brush to rub against the fixed brush to remove impurities. The distance between the first and second combing and scraping needles is smaller than the particle diameter, effectively scraping away embedded particles and combing the brush bristles to prevent tangling. The scraped-off particles are discharged through the discharge chute, solving the problems of embedded particles, poor discharge, and reduced cleaning effect. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a plastic granule impurity removal device for plastic processing according to this utility model is provided;

[0016] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure;

[0017] Figure 3 for Figure 2 A schematic diagram of the split structure.

[0018] Reference numerals: 1. Housing; 2. Drive plate; 3. Discharge trough; 4. First combing and scraping needle row; 5. Guide trough; 6. Support plate; 7. Second combing and scraping needle row; 8. Water inlet pipe; 9. Drain pipe; 10. Feed hopper; 11. Fixed brush; 12. Spray pipe; 13. Rinsing tank; 14. Rotating shaft; 141. Sleeve; 15. Mounting plate; 16. Cleaning brush; 17. Motor. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0020] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover a 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. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of 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.

[0025] Example

[0026] like Figures 1 to 3 As shown, this utility model proposes a plastic granule impurity removal device for plastic processing, including a housing 1 and a guide trough 5 disposed inside the housing 1 for material to slide down. The housing 1 is equipped with a vibrating screen, which utilizes the inertial force generated by vibration to cause the plastic granules and impurities to separate and stratify on the screen surface. Grading separation is achieved through the difference in screen mesh size, allowing granules to pass through the screen while impurities are retained. The plastic granules after vibration screening flow into the guide trough 5. The guide trough 5 receives the plastic granules fed from the feed hopper 10 and guides them smoothly down into the rinsing tank 13. The feed hopper 10 is located at the end of the housing 1 furthest from the water inlet pipe 8, serving as the input port for the plastic granules, facilitating the entry of the granules to be removed into the device. The rinsing tank 13 is also located inside one end of the housing 1, receiving the granules sliding down from the guide trough 5 and providing working space for spray pipe rinsing and friction impurity removal by the fixed brush and cleaning brush. The rinsing tank 13 is used to collect materials sliding down from the guide trough 5. Several fixed brushes 11 are provided on the rinsing tank 13. The fixed brushes 11 rub against the rotating cleaning brushes 16 to clean and remove impurities from the surface of the plastic granules within the rinsing tank 13. Multiple cleaning brushes 16 arranged in a circular array are also provided inside one end of the housing 1. When the cleaning brushes 16 rotate with the rotating shaft 14, they rub against the fixed brushes 11 to clean impurities from the surface of the plastic granules. Each cleaning brush 16 is fixedly connected to a mounting plate 15, which provides a mounting point for the cleaning brush 16, allowing it to rotate synchronously with the retaining sleeve 141. The mounting plates 15 are all fixedly connected to the outer wall of the retaining sleeve 141. A rotating shaft 14 is provided inside one end of the housing 1, and retaining sleeves 141 are fixedly fitted onto the rotating shaft 14. The retaining sleeves 141 are used to transmit the rotational force of the rotating shaft 14 to the driving plate 2 and the cleaning brushes 16. Multiple drive plates 2, corresponding to cleaning brushes 16, are fixedly connected to the outer wall of the sleeve 141. The drive plates 2 rotate synchronously with the rotating shaft 14, driving the first combing and scraping needles 4 to perform combing and scraping actions. Multiple first combing and scraping needles 4, arranged linearly and rotating to straighten the fixed brush 11, are fixedly connected to the drive plates 2. The spacing between the first combing and scraping needles 4 is smaller than the size of the material particles. As the drive plates 2 rotate, they straighten the fixed brush 11 and scrape away embedded particles, preventing particle residue. The distance between the first combing and scraping needles 4 is smaller than the size of the material particles.

[0027] Among them, such as Figure 2 and Figure 3 As shown, a scraping mechanism is installed on the inner wall of one end of the housing 1. The scraping mechanism is correspondingly arranged with the cleaning brush 16. The scraping mechanism includes a support plate 6 fixedly connected to the inner wall of one end of the housing 1. The support plate 6 provides installation support for the second combing and scraping needles 7, ensuring that the position of the second combing and scraping needles 7 is stable to cooperate with the cleaning brush 16. Multiple second combing and scraping needles 7 are fixedly connected to the support plate 6 in a linear arrangement and connected to the rotating cleaning brush 16. The second combing and scraping needles 7 are staggered with the first combing and scraping needles 4, and the distance between them is smaller than the size of the material particles. When they contact the rotating cleaning brush 16, they comb the bristles and scrape off the particles embedded in the cleaning brush 16. The second combing and scraping needles 7 are staggered with the first combing and scraping needles 4 on the drive plate 2, and the distance between the second combing and scraping needles 7 is smaller than the size of the material particles.

[0028] In addition, such as Figures 1 to 3 As shown, a discharge trough 3 is provided at one end of the box body 1 near the support plate 6. The discharge trough 3 receives the plastic granules after being processed by the first combing and scraping needles 4 and discharges the granules after impurity removal from the box body 1. The support plate 6 and the discharge trough 3 are vertically opposite each other. A drain pipe 9 is provided at one end of the box body 1 near the discharge trough 3. The drain pipe 9 discharges the wastewater generated in the rinsing tank 13 after rinsing the plastic granules.

[0029] It is worth noting that, such as Figures 1 to 3 As shown, a water inlet pipe 8 is provided at one end of the housing 1 near the discharge trough 3. The water inlet pipe 8 supplies rinsing water to the spray pipe 12. One end of the water inlet pipe 8 is fixedly connected to the spray pipe 12 aligned with the rotating shaft 14 after passing through the housing 1. The spray pipe 12 sprays out the water supplied by the water inlet pipe 8 to rinse and remove impurities from the plastic particles in the rinsing tank 13.

[0030] Furthermore, such as Figure 1 As shown, a motor 17 is fixedly connected to the outer wall of the end of the housing 1 near the drain pipe 9. The motor 17 provides a power source for the rotation of the rotating shaft 14. The output shaft of the motor 17 passes through the housing 1 and is fixedly connected to the end of the rotating shaft 14. The end of the rotating shaft 14 away from the motor 17 is rotatably connected to the inner wall of the housing 1.

[0031] In this embodiment, when using the plastic granule impurity removal device for plastic processing, the plastic granules to be removed are first fed into the feed hopper 10. The pre-removed plastic granules slide down the guide chute 5 into the rinsing tank 13. At the same time, the water inlet pipe 8 supplies water to the spray pipe 12, which sprays water onto the granules in the rinsing tank 13 to rinse away dust and other impurities attached to the surface. The wastewater is discharged through the drain pipe 9.

[0032] The motor 17 on the outer wall of the housing 1 is started. The output shaft of the motor 17 drives the rotating shaft 14 to rotate. The rotating shaft 14 drives the mounting plate 15 and the cleaning brush 16 to rotate synchronously through the retainer 141. During the rotation of the cleaning brush 16, it cooperates with the fixed brush 11 on the rinsing tank 13 to rub the surface of the plastic particles, thereby achieving further removal of impurities.

[0033] When the cleaning brush 16 rotates, it will come into contact with the second combing and scraping needles 7 on the support plate 6. Because the spacing of the second combing and scraping needles 7 is smaller than the particle diameter, it can scrape off the particles embedded in the cleaning brush 16 and comb the bristles. The scraped-off particles fall onto the first combing and scraping needles 4.

[0034] The rotating shaft 14 also drives the rotating plate 2 to rotate via the retaining sleeve 141. The rotating plate 2, in turn, drives the first combing and scraping needle 4 to rotate. The rotated first combing and scraping needle 4 and the second combing and scraping needle 7 rotate alternately to avoid mutual obstruction. At the same time, the first combing and scraping needle 4 combs the fixed brush 11 in a comb-like manner, scraping off the embedded particles and straightening the bristles. The first combing and scraping needle 4 is set at an angle. The scraped-off particles and the particles that have been cleaned are discharged from the box 1 through the discharge trough 3 under the action of gravity, completing the entire cleanup process.

[0035] The preferred embodiments of this utility model described above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A plastic granule impurity removal device for plastic processing, comprising a housing (1) and a guide trough (5) disposed inside the housing (1) for material to slide down, wherein a rinsing trough (13) is also provided inside one end of the housing (1), the rinsing trough (13) being used to collect the material sliding down from the guide trough (5), the rinsing trough (13) being provided with a plurality of fixed brushes (11), and a plurality of cleaning brushes (16) arranged in a circumferential array inside one end of the housing (1), characterized in that, Also includes: A rotating shaft (14) is set inside one end of the housing (1). A sleeve (141) is fixedly fitted on the rotating shaft (14). A plurality of driving plates (2) corresponding to the cleaning brush (16) are fixedly connected to the outer wall of the sleeve (141). A plurality of first combing and scraping needles (4) arranged in a linear pattern and combing and straightening the fixed brush (11) after rotation are fixedly connected to the driving plate (2). The distance between the first combing and scraping needles (4) is smaller than the size of the material particles. The scraping and combing mechanism is installed on the inner wall of one end of the housing (1), and the scraping and combing mechanism is correspondingly set with the cleaning brush (16).

2. The plastic granule impurity removal device for plastic processing according to claim 1, characterized in that, The scraping mechanism includes a support plate (6) fixedly connected to the inner wall of one end of the housing (1). Multiple second combing and scraping needles (7) arranged in a linear pattern and connected to a rotating cleaning brush (16) are fixedly connected to the support plate (6). The second combing and scraping needles (7) are staggered with the first combing and scraping needles (4) on the drive plate (2). The distance between the second combing and scraping needles (7) is smaller than the size of the material particles.

3. The plastic granule impurity removal device for plastic processing according to claim 2, characterized in that, The box body (1) is provided with a discharge trough (3) at one end near the support plate (6), and the support plate (6) and the discharge trough (3) are opposite each other.

4. The plastic granule impurity removal device for plastic processing according to claim 3, characterized in that, A drain pipe (9) is provided at one end of the box (1) near the discharge trough (3).

5. The plastic granule impurity removal device for plastic processing according to claim 3, characterized in that, The box (1) is provided with a water inlet pipe (8) at one end near the discharge trough (3). One end of the water inlet pipe (8) is fixedly connected to a spray pipe (12) aligned with the rotating shaft (14).

6. The plastic granule impurity removal device for plastic processing according to claim 1, characterized in that, Each cleaning brush (16) is fixedly connected to a mounting plate (15), and the mounting plate (15) is fixedly connected to the outer wall of the sleeve (141).

7. The plastic granule impurity removal device for plastic processing according to claim 5, characterized in that, The box (1) is provided with a feed hopper (10) at the end away from the water inlet pipe (8).

8. The plastic granule impurity removal device for plastic processing according to claim 4, characterized in that, A motor (17) is fixedly connected to the outer wall of the box (1) near the drain pipe (9). The output shaft of the motor (17) passes through the box (1) and is fixedly connected to the end of the rotating shaft (14). The end of the rotating shaft (14) away from the motor (17) is rotatably connected to the inner wall of the box (1).

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