Screening device for producing modified regenerated plastic particles

Abstract

The utility model relates to the technical field of modified regenerated plastic particle production, in particular to a screening device for modified regenerated plastic particle production. Comprising supporting plates, a shell, a discharging port, a vibration motor, a discharging port, a screen and a sorting discharging port, the multiple supporting plates distributed in a triangular structure are fixedly connected to the edge of the lower portion of the shell, the discharging port is fixedly connected to the center of the shell, the vibration motor is installed on the right side wall of the lower portion of the shell, and the discharging port is fixedly connected to the center of the top of the shell; two screens are fixedly connected into the shell, and sorting discharging openings are fixedly connected to the left side of the middle and the left side of the lower portion of the shell. By arranging the scraping mechanism, plastic particles on the screen can be scraped to be distributed, the screen leakage phenomenon is reduced, the plastic particles clamped in the screen holes of the screen can be loosened, the plastic particles clamped in the screen holes are shaken out when the screen vibrates, the situation that the screen holes are blocked is reduced, it is ensured that the screening process is conducted smoothly, and the screening efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of modified recycled plastic particle production, in particular to a screening device for the production of modified recycled plastic particles. Background Art

[0002] Modified recycled plastic pellets are made by processing waste plastic raw materials and adding various additives to improve their properties. They not only contribute to environmental protection but also offer cost advantages and are widely used across multiple industries. Screening is a crucial step in the production of modified recycled plastic pellets. It ensures consistent particle size, improving product quality and processing efficiency. This is crucial for ensuring the performance and market competitiveness of the final product.

[0003] The patent with the authorization announcement number CN217891513U discloses a plastic particle screening device for plastic processing, comprising a first screen plate, a first baffle fixedly connected to both sides of the first screen plate, a plurality of first filter holes formed on the top of the first screen plate, a first fixed plate fixedly connected to both sides of the first screen plate, two first support plates provided on both sides of the first screen plate, a first vibration motor provided at the bottom of the first screen plate, and an inclined plate provided below the first screen plate. Although the above patent can improve the screening effect by providing the first screen plate and the second screen plate, there are still some deficiencies in actual use. For example, in the process of screening plastic particles, the plastic particles may get stuck in the sieve holes of the first screen plate and the second screen plate, causing the sieve holes of the first screen plate and the second screen plate to be blocked, thereby affecting the screening efficiency.

[0004] Therefore, there is a particular need for a screening device for producing modified recycled plastic particles to solve the above problems. Utility Model Content

[0005] In order to overcome the disadvantage of the existing patent that plastic particles may get stuck in the sieve holes of the first sieve plate and the second sieve plate, causing the sieve holes to be blocked and affecting the screening efficiency, the utility model provides a screening device for the production of modified recycled plastic particles.

[0006] The utility model is achieved through the following technical approaches: a screening device for the production of modified recycled plastic particles, including a support plate, an outer shell, a discharge port, a vibration motor, a feed port, a screen and a sorting and discharging port, a plurality of support plates distributed in a triangular structure are fixedly connected at the edge position of the lower portion of the outer shell, a discharge port is fixedly connected at the center position, a vibration motor is installed on the right side wall of the lower portion of the outer shell, a feed port is fixedly connected at the center position of the top of the outer shell, two screens are fixedly connected inside the outer shell, and the sorting and discharging ports are fixedly connected on the left side of the middle portion and the left side of the lower portion of the outer shell, and a scraping mechanism is also included, and a scraping mechanism is provided on the outer shell.

[0007] More preferably, the scraping mechanism includes a ring gear, a bracket, a scraper, a servo motor and a gear. The ring gear is rotatably connected to the upper part of the outer shell, and a servo motor is installed on the right side of the upper part of the outer shell. A gear is fixedly connected to the output shaft of the servo motor, and the gear and the ring gear are engaged with each other. A bracket is fixedly connected to the inside of the ring gear, and two scrapers are fixedly connected to the bracket. Each scraper is located above each screen and contacts with it.

[0008] More preferably, the vibration motor is located between the two screens.

[0009] More preferably, the sorting discharge port is designed to be inclined.

[0010] More preferably, the gear and the ring gear have the same thickness.

[0011] More preferably, the scraper is provided with a plurality of partitions evenly spaced apart.

[0012] From the above description of the structure of the present invention, it can be seen that the design starting point, concept and advantages of the present invention are:

[0013] The utility model is provided with a scraping mechanism, which can not only scrape the distribution of plastic particles on the screen to reduce the leakage of screening, but also loosen the plastic particles stuck in the screen holes of the screen, so that the plastic particles stuck in the screen holes can be shaken out when the screen vibrates, reducing the blockage of the screen holes, ensuring the smooth screening process, and improving the screening efficiency.

[0014] The utility model provides a vibration motor, and the vibration of the vibration motor causes the screen to vibrate, so that the plastic particles move on the screen, thereby more effectively separating the plastic particles and further improving the screening efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a partial cross-sectional view of the support plate, shell, discharge port and other components of the utility model.

[0017] Figure 3 It is a three-dimensional structural diagram of the servo motor, gears, sorting and discharge ports and other components of the utility model.

[0018] Figure 4 It is a three-dimensional structural diagram of the gear ring, bracket, scraper and other components of the utility model.

[0019] The meanings of the reference numerals in the figure are: 1. support plate, 2. outer shell, 3. discharge port, 4. vibration motor, 5. discharge port, 9. ring gear, 10. bracket, 11. scraper, 12. screen, 13. servo motor, 1301, gear, 14. sorting discharge port. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example: A screening device for producing modified recycled plastic particles, see Figure 1-Figure 4 As shown, it includes a support plate 1, a shell 2, a discharge port 3, a vibration motor 4, a feed port 5, a screen 12 and a sorting discharge port 14. The lower edge of the shell 2 is connected to a plurality of support plates 1 distributed in a triangular structure by welding, and the center position is connected to the discharge port 3 by welding. The right side wall of the lower part of the shell 2 is connected to the vibration motor 4 by bolts, and the center position of the top of the shell 2 is connected to the feed port 5 by welding. Two screens 12 are connected to the inside of the shell 2 by welding, and the vibration motor 4 is located between the two screens 12, which can ensure that the vibration is more Evenly transferred to the two screens 12, it helps to improve the screening effect. The middle left side and the lower left side of the shell 2 are connected to the sorting discharge port 14 by welding. The upper sorting discharge port 14 is aligned with the upper screen 12, and the lower sorting discharge port 14 is aligned with the lower screen 12, so that the plastic particles screened by the screen 12 can be discharged from the corresponding sorting discharge port 14, and the sorting discharge port 14 is inclined. The design helps to improve the fluidity of the plastic particles and makes it easier for the plastic particles to slide down and be discharged along the sorting discharge port 14. It also includes a scraping mechanism, and a scraping mechanism is provided on the shell 2.

[0022] See Figure 2-Figure 4As shown, the scraping mechanism includes a ring gear 9, a bracket 10, a scraper 11, a servo motor 13 and a gear 1301. The upper part of the housing 2 is rotatably connected to the ring gear 9, and the servo motor 13 is connected to the right side of the upper part of the housing 2 by bolts. The output shaft of the servo motor 13 is connected to the gear 1301 by welding. The gear 1301 and the ring gear 9 are meshed with each other, and the gear 1301 and the ring gear 9 have the same thickness, which can achieve uniform load distribution, reduce the risk of wear and damage, and help reduce vibration caused by unbalanced load, improve operation stability, and the ring gear 9 A bracket 10 is connected inside by welding, and two scrapers 11 are connected to the bracket 10 by welding. Each scraper 11 is located above each screen 12 and contacts it. A rubber pad is provided on the contact surface between the scraper 11 and the screen 12 to prevent scratches, and a plurality of partitions are evenly spaced on the scraper 11, which can increase the contact area between the scraper 11 and the plastic particles, help to scrape the plastic particles more thoroughly, and help to guide the flow direction of the plastic particles, reduce the turbulence of the plastic particles during the scraping process, and improve the orderliness of the flow of the plastic particles.

[0023] When it is necessary to screen the plastic particles, the staff will first place the three prepared receiving frames under the discharge port 3, the upper sorting discharge port 14 and the lower sorting discharge port 14 respectively, and then turn on the vibration motor 4 and the servo motor 13, and then pour the plastic particles to be screened into the shell 2 from the discharge port 5. The plastic particles first contact the upper screen 12 for primary screening. During screening, the larger plastic particles stay on the upper screen 12, and the smaller plastic particles and small particle impurities fall onto the lower screen 12 for secondary screening. During screening, the smaller plastic particles stay on the lower screen 12, and the small particle impurities fall into the discharge port 3 for discharge and fall into one of the pre-placed collection frames, thereby realizing multi-stage screening of plastic particles and collection of small particle impurities. In this process, the vibration motor 4 The vibration causes the screen 12 to vibrate, causing the plastic particles to move on the screen 12. At the same time, the output shaft of the servo motor 13 drives the gear 1301 to rotate, so that it meshes with the ring gear 9, and then the ring gear 9 drives the bracket 10 and the scraper 11 to rotate, so that the scraper 11 scrapes the plastic particles on the screen 12 to reduce the leakage phenomenon and loosen the plastic particles stuck in the sieve holes of the screen 12. When the screen 12 vibrates, the plastic particles stuck in the sieve holes are shaken out, reducing the blockage of the sieve holes. During the screening process, the larger plastic particles and the smaller plastic particles screened out on the upper screen 12 and the lower screen 12 are discharged from the upper sorting discharge port 14 and the lower sorting discharge port 14 respectively, and fall into the other two collection frames placed in advance. When the screening of the plastic particles is completed, the vibration motor 4, the fan and the servo motor 13 are turned off.

[0024] Although the present disclosure has been shown and described with reference to certain exemplary embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made to the present disclosure without departing from the spirit and scope of the present disclosure as defined by the appended claims and their equivalents. Therefore, the scope of the present disclosure should not be limited to the above-described embodiments, but should be determined not only by the appended claims but also by the equivalents of the appended claims.

Claims

1. A screening device for producing modified recycled plastic particles, comprising a support plate (1), a shell (2), a discharge port (3), a vibration motor (4), a feed port (5), a screen (12) and a sorting discharge port (14), wherein a plurality of support plates (1) distributed in a triangular structure are fixedly connected to the lower edge of the shell (2), the discharge port (3) is fixedly connected to the center, a vibration motor (4) is installed on the lower right wall of the shell (2), the feed port (5) is fixedly connected to the center of the top of the shell (2), two screens (12) are fixedly connected inside the shell (2), and the sorting discharge port (14) is fixedly connected to the left side of the middle and the left side of the lower part of the shell (2), characterized in that It also includes a scraping mechanism, and the outer shell (2) is provided with the scraping mechanism.

2. A screening device for producing modified recycled plastic particles according to claim 1, characterized in that: The scraping mechanism comprises a gear ring (9), a bracket (10), a scraper (11), a servo motor (13) and a gear (1301). The gear ring (9) is rotatably connected to the upper inner portion of the housing (2). The servo motor (13) is installed on the right upper portion of the housing (2). The output shaft of the servo motor (13) is fixedly connected to the gear (1301). The gear (1301) and the gear ring (9) are meshed with each other. The bracket (10) is fixedly connected to the inner portion of the gear ring (9). Two scrapers (11) are fixedly connected to the bracket (10). Each scraper (11) is located above each screen (12) and contacts the screen (12).

3. A screening device for producing modified recycled plastic particles according to claim 2, characterized in that: The vibration motor (4) is located between the two screens (12).

4. A screening device for producing modified recycled plastic particles according to claim 3, characterized in that: The sorting discharge port (14) is designed to be inclined.

5. A screening device for producing modified recycled plastic particles according to claim 4, characterized in that: The gear (1301) and the gear ring (9) have the same thickness.

6. A screening device for producing modified recycled plastic particles according to claim 5, characterized in that: The scraper (11) is provided with a plurality of partitions evenly spaced apart.

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