Plastic particle material screening machine

Abstract

The utility model provides a plastic particle material screening machine, which belongs to the technical field of screening machines, and comprises a mounting floor, a plurality of groups of foot edge fixing columns arranged on the mounting floor, a bearing frame arranged on the plurality of groups of foot edge fixing columns, and a screening barrel arranged on the bearing frame, a first filter plate, a second filter plate and a third filter plate are sequentially arranged in the screen barrel from top to bottom, a cleaning assembly used for cleaning the filter holes is arranged on the screen barrel and comprises a motor, the motor is located above the mounting floor, a rotating shaft is arranged on the bearing frame in a penetrating mode, and the rotating shaft penetrates through the bearing frame to be arranged on the screen barrel in a penetrating mode; one end of the rotating shaft is connected with the shaft end of the motor; according to the device, through the arrangement of the cleaning assembly, the filtering holes of the filtering plate in the screening barrel can be cleaned, after the filtering holes are blocked due to long-time use, the motor is started to drive the rotating shaft and the cleaning sweeping strip arranged in the sleeving mode to rotate so as to clean the filtering holes, and a user does not need to frequently disassemble the filtering plate for cleaning.

Description

Technical Field

[0001] This utility model belongs to the field of screening machine technology, and more specifically, it relates to a screening machine for plastic granule materials. Background Technology

[0002] In the plastics processing and production process, plastic granule screening machines are a commonly used quality control device, widely applied in the particle size screening stage of the plastic granule production process. This allows users to easily classify plastic granules of different sizes to meet the production needs of various subsequent plastic products. However, traditional devices typically consist of simple fixed screens. These screens are fixed in place and lack effective cleaning mechanisms, making timely and convenient cleaning impossible. After prolonged use, plastic granules and impurities easily clog the screen's filter holes. This not only significantly reduces screening efficiency and affects production progress but also lowers screening accuracy, allowing granules that do not meet the size requirements to mix into qualified products, thus reducing product quality. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a plastic granule material screening machine, which solves the technical problem that in the prior art, traditional devices are usually simple fixed screens with fixed settings and lack effective cleaning structures, making it impossible to clean the screens in a timely and convenient manner.

[0004] The purpose and effectiveness of this utility model's plastic granule material screening machine are achieved through the following specific technical means:

[0005] A plastic granule material screening machine includes a mounting floor with multiple sets of foot-side fixing columns. Each set of foot-side fixing columns has a support frame, and a screen barrel is mounted on the support frame. Inside the screen barrel, a first filter plate, a second filter plate, and a third filter plate are arranged sequentially from top to bottom. A cleaning assembly for cleaning the filter holes is provided on the screen barrel. The cleaning assembly includes a motor located above the mounting floor. A rotating shaft passes through the support frame and is threaded through the screen barrel. One end of the rotating shaft is connected to the motor shaft, and multiple sets of cleaning brooms are fitted onto the rotating shaft.

[0006] According to a preferred embodiment, a multi-stage filter frame is mounted on the sieve barrel, and the first filter plate, the second filter plate, and the third filter plate are respectively mounted on the multi-stage filter frame.

[0007] According to a preferred embodiment, the multi-stage filter frame is provided with multiple sets of fixed reinforcing columns, and the multiple sets of fixed reinforcing columns pass through the first filter plate, the second filter plate and the third filter plate on the multi-stage filter frame.

[0008] According to a preferred embodiment, the first filter plate, the second filter plate, and the third filter plate are all provided with filter holes, the diameter of the filter holes decreasing from top to bottom, and a feed cover plate is fitted onto one end of the screen barrel.

[0009] According to a preferred embodiment, one end of each of the three sets of cleaning sweeping strips is respectively fitted with a flow direction scraper, multiple sets of outlets are opened on the periphery of the screen barrel, each set of outlets is provided with an outflow pipe on one side, multiple sets of guide plates are fitted on the multi-stage filter frame, and the multiple sets of outflow pipes are respectively connected to the screen barrel by bolts.

[0010] According to a preferred embodiment, an instrument protection frame is provided on the mounting floor, the instrument protection frame is connected to the mounting floor by fixing bolts, the sieve barrel and the support frame are both provided with leakage holes on one side, the sieve barrel and the support frame are connected by bolts, and the motor position is clamped on the instrument protection frame.

[0011] According to a preferred embodiment, the mounting floor is provided with multiple sets of particle collection boxes, the bottom of the mounting floor is provided with multiple sets of suction cups, and one end of each set of support frames is engaged with the mounting floor.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This device, through its cleaning components, allows users to clean the filter holes of the filter plates inside the sieve drum, enhancing the device's continuous screening capability. After prolonged use leading to filter hole blockage, users can start the motor to rotate the shaft and the attached cleaning brooms to clean the filter holes. This eliminates the need for frequent disassembly and cleaning of the filter plates, improving the device's ability to maintain screening efficiency.

[0014] 2. When using this device, users can feed plastic granules of different sizes into the screen barrel through the feed cover plate. The granules are then graded and screened using the first, second, and third filter plates with progressively smaller apertures, allowing users to obtain plastic granules of different sizes and improving the ease of screening. Then, through the outflow pipes located around the screen barrel and the guide plates on the multi-stage filter frames, the device can separately discharge and collect the plastic granules after each stage of screening, facilitating the collection of products of different sizes and enhancing the practicality of the device in actual production. Attached Figure Description

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

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

[0017] Figure 3 yes Figure 2 Enlarged view of area a in the middle;

[0018] Figure 4 It is a front view;

[0019] Figure 5 This is a schematic diagram of the internal structure;

[0020] Figure 6 This is a front view of the internal structure;

[0021] Figure 7 It is an exploded view of the internal structure.

[0022] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0023] 11. Floor installation; 12. Foot support post; 13. Load-bearing frame; 14. Screen barrel; 15. First filter plate; 16. Second filter plate; 17. Third filter plate; 18. Motor; 19. Rotating shaft; 21. Cleaning sweeper; 22. Multi-stage filter frame; 23. Fixed reinforcing post; 24. Flow direction scraper; 25. Outlet pipe; 26. Guide plate; 27. Instrument protection frame; 28. Particle collection box; 29. ​​Suction cup; 31. Feed cover plate. Detailed Implementation

[0024] 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 used to illustrate the technical solution of this utility model, but should not be used to limit the scope of protection of this utility model.

[0025] Example:

[0026] like Figures 1 to 4As shown, this utility model provides a plastic granule material screening machine, including a mounting base 11. The mounting base 11 serves as the foundation support for the entire screening machine, providing a stable mounting surface for all other components. Multiple sets of edge fixing posts 12 are installed on the mounting base 11, vertically fixed to the edges of the mounting base 11, further stabilizing the support. The multiple sets of edge fixing posts 12 are connected to a support frame 13, which is mounted on top of the multiple sets of edge fixing posts 12. The support frame 13 serves as the support component for the screen barrel 14, firmly supporting the screen barrel 14 and ensuring its stability during the screening process, preventing shaking or displacement that could affect the screening effect. Inside the screen barrel 14, from top to bottom, a first filter plate 15, a second filter plate 16, and a third filter plate 17 are sequentially arranged to achieve plastic granule size screening. A multi-stage filter frame 22 is mounted on the screen barrel 14, providing a mounting framework for the first filter plate 15, the second filter plate 16, and the third filter plate 17. The first filter plate 15, the second filter plate 16, and the third filter plate 17 are respectively secured to the multi-stage filter frame 22, maintaining a fixed position within the screen barrel 14. Multiple sets of reinforcing posts 23, installed on the multi-stage filter frame 22, penetrate the first filter plate 15, the second filter plate 16, and the third filter plate 17, and are again installed on the multi-stage filter frame 22, further enhancing the stability of the connection between the three filter plates and the multi-stage filter frame 22. This prevents the filter plates from shifting or loosening due to particle impact during screening, ensuring screening accuracy. The first filter plate 15, the second filter plate 16, and the third filter plate 17 all have filter holes, with the hole diameter decreasing sequentially from top to bottom. This arrangement allows plastic particles fed into the screen barrel 14 to pass through filter plates of different hole diameters according to their particle size, achieving graded screening. A feed cover 31 fitted onto one end of the screen barrel 14 serves two purposes: guiding the plastic particles into the screen barrel 14 and preventing particles from overflowing from the feed end during screening.

[0027] The cleaning assembly is mounted on the screen barrel 14, with its motor 18 located above the mounting base 11 and protected by the instrument protection frame 27. The instrument protection frame 27 is connected to the mounting base 11 by fixing bolts, securely holding the motor 18 within it to prevent interference or damage from external factors during operation. A rotating shaft 19, passing through the support frame 13, connects at one end to the shaft end of the motor 18, and the other end passes through the support frame 13 and extends to the screen barrel 14. Multiple sets of cleaning brooms 21, fitted onto the rotating shaft 19, rotate as the shaft 19 rotates. Their function is to clean the filter holes on the first filter plate 15, the second filter plate 16, and the third filter plate 17, preventing plastic particles and impurities from clogging the filter holes and ensuring the continuous and efficient screening process. Three sets of cleaning brushes 21 each have a flow-directing scraper 24 attached to one end. When the cleaning brushes 21 rotate, the flow-directing scraper 24 changes the flow direction of particles within the sieve barrel 14, promoting a more even distribution of particles on the filter plates and improving screening efficiency. Multiple outlets are located around the sieve barrel, corresponding to particles screened by different levels of filter plates. Each outlet has an outlet pipe 25 on one side, connected to the sieve barrel 14 by bolts, to discharge the plastic particles screened by the corresponding filter plates. Multiple guide plates 26 attached to the multi-stage filter frame 22 guide the particles to their corresponding outlet pipes 25, ensuring that particles of different sizes are accurately discharged through their respective outlet pipes 25. Multiple particle collection boxes 28 mounted on the mounting base 11, corresponding to the outlet positions of the outlet pipes 25, are used to collect plastic particles of different sizes discharged from the outlet pipes 25, achieving classified collection of the screened particles. Multiple suction cups 29 installed at the bottom of the mounting floor 11 can adhere to the ground, increasing the friction between the entire screening machine and the ground, preventing the screening machine from slipping during operation, and further improving the stability of the screening machine during operation. One end of the support frame 13 is clamped onto the mounting floor 11, forming a stable connection with the mounting floor 11, ensuring the integrity and stability of the entire screening machine structure.

[0028] like Figures 2 to 7As shown, when using this device, the user first places the mounting base 11 stably on the work site. The mounting base 11 serves as the foundation support for the entire screening machine. Multiple sets of foot-mounted supports 12 are vertically connected to the mounting base 11, supporting the upper support frame 13. The support frame 13 supports the screen barrel 14, ensuring its stability during screening operations and preventing interference from external vibrations, thus ensuring accurate and continuous screening. Inside the screen barrel 14, from top to bottom, are arranged a first filter plate 15, a second filter plate 16, and a third filter plate 17, which are used to screen plastic particles. A multi-stage filter frame 22 is mounted on the screen barrel 14, with the first filter plate 15, second filter plate 16, and third filter plate 17 respectively mounted on the multi-stage filter frame 22. Multiple sets of fixed reinforcing columns 23 are installed on the multi-stage filter frame 22. These columns pass through the first filter plate 15, the second filter plate 16, and the third filter plate 17, and then back through the multi-stage filter frame 22, strengthening the connection between the filter plates and the frame. This prevents the filter plates from loosening or shifting due to the impact of plastic particles during screening, ensuring stable and reliable screening results. The first filter plate 15, the second filter plate 16, and the third filter plate 17 all have filter holes, with the hole diameter gradually decreasing from top to bottom. This allows plastic particles fed into the screen barrel 14 from the feed cover 31 to pass through different levels of filter plates according to their particle size, achieving graded screening. The feed cover 31 is fitted over one end of the screen barrel 14, guiding the plastic particles into the interior of the screen barrel 14 while preventing particles from overflowing from the feed end, ensuring orderly screening within a relatively enclosed space. The cleaning components on the screen barrel 14 are an important part of ensuring the long-term stable operation of the screening machine.

[0029] The motor 18 in the cleaning assembly is located above the mounting base 11 and protected by the instrument protection frame 27. The instrument protection frame 27 is connected to the mounting base 11 by fixing bolts, firmly securing the motor 18 and preventing damage from external interference. A rotating shaft 19 passes through the support frame 13. One end of the rotating shaft 19 is connected to the shaft of the motor 18, and the other end extends through the support frame 13 to the screen barrel 14. The rotating shaft 19 is fitted with multiple sets of cleaning brushes 21. When the rotating shaft 19 rotates, it drives the cleaning brushes 21 to rotate, which cleans the filter holes of the first filter plate 15, the second filter plate 16, and the third filter plate 17, preventing the filter holes from being blocked by plastic particles and impurities, and ensuring continuous and efficient screening. Each of the three sets of cleaning brushes 21 has a flow direction scraper 24 at one end. When the cleaning brushes 21 rotate, the flow direction scraper 24 changes the flow direction of particles in the screen barrel 14, allowing the particles to be more evenly distributed on the filter plates and improving screening efficiency. The screen barrel 14 has multiple sets of outlets on its circumference, each connected to an outlet pipe 25, which is fixed to the screen barrel 14 with bolts. Multiple sets of guide plates 26 are mounted on the multi-stage filter frame 22 to guide particles to their corresponding outlet pipes 25, ensuring that particles of different sizes are accurately discharged through their respective outlet pipes 25, thus achieving the separation of particles of different sizes.

[0030] The specific usage and function of this embodiment are as follows:

[0031] When using this device, first place the mounting base 11 on a stable surface, with its bottom suction cup 29 adhering to the ground to ensure stability. Pour the plastic granules to be screened into the screen barrel 14 through the feed cover 31. The granules first contact the first filter plate 15, where larger granules are trapped, while smaller ones pass through. They then pass through the second filter plate 16 and the third filter plate 17, with decreasing apertures, achieving graded screening. The motor 18 starts, driving the rotating shaft 19 and cleaning sweeper 21 to rotate, cleaning the filter holes of the three filter plates to prevent clogging and maintain screening efficiency. The flow direction scraper 24 on the cleaning sweeper 21 changes the flow direction of the granules, making their distribution more even and improving the screening effect. After being screened by different levels of filter plates, the granules are guided by the guide plate 26 and discharged from the peripheral outlet of the screen barrel 14 through the outflow pipe 25, falling into the corresponding granule collection box 28, completing the classification and collection of plastic granules of different sizes.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments.

Claims

1. A plastic granule material screening machine, comprising a mounting floor (11), characterized in that: Multiple sets of foot-side fixing posts (12) are provided on the mounting floor (11). A support frame (13) is provided on the multiple sets of foot-side fixing posts (12). A sieve barrel (14) is provided on the support frame (13). A first filter plate (15), a second filter plate (16), and a third filter plate (17) are arranged sequentially from top to bottom in the sieve barrel (14). A cleaning assembly for cleaning the filter holes is provided on the sieve barrel (14). The cleaning assembly includes a motor (18). The motor (18) is located above the mounting floor (11). A rotating shaft (19) is passed through the support frame (13). The rotating shaft (19) passes through the support frame (13) and is installed on the sieve barrel (14). One end of the rotating shaft (19) is connected to the shaft end of the motor (18). Multiple sets of cleaning brooms (21) are sleeved on the rotating shaft (19).

2. The plastic granule material screening machine according to claim 1, characterized in that: The sieve barrel (14) is fitted with a multi-stage filter frame (22), and the first filter plate (15), the second filter plate (16) and the third filter plate (17) are respectively fitted on the multi-stage filter frame (22).

3. The plastic granule material screening machine according to claim 2, characterized in that: The multi-stage filter frame (22) is provided with multiple sets of fixed reinforcing columns (23), and the multiple sets of fixed reinforcing columns (23) pass through the first filter plate (15), the second filter plate (16) and the third filter plate (17) on the multi-stage filter frame (22).

4. A plastic granule material screening machine according to claim 3, characterized in that: The first filter plate (15), the second filter plate (16) and the third filter plate (17) are all provided with filter holes, and the diameter of the filter holes decreases from top to bottom. The screen barrel (14) is fitted with a feed cover plate (31) at one end.

5. A plastic granule material screening machine according to claim 4, characterized in that: One end of each of the three sets of cleaning sweeping strips (21) is respectively fitted with a flow direction scraper (24). The screen barrel (14) has multiple sets of outlets on its periphery. Each of the multiple sets of outlets is provided with an outflow pipe (25) on one side. The multi-stage filter frame (22) is fitted with multiple sets of guide plates (26). The multiple sets of outflow pipes (25) are respectively connected to the screen barrel (14) by bolts.

6. A plastic granule material screening machine according to claim 1, characterized in that: An instrument protection frame (27) is provided on the mounting floor (11). The instrument protection frame (27) is connected to the mounting floor (11) by fixing bolts. The sieve barrel (14) and the bearing frame (13) are both provided with leakage holes on one side. The sieve barrel (14) and the bearing frame (13) are connected by bolts. The motor (18) is mounted on the instrument protection frame (27).

7. A plastic granule material screening machine according to claim 6, characterized in that: Multiple sets of particle collection boxes (28) are provided on the mounting floor (11), multiple sets of suction cups (29) are provided at the bottom of the mounting floor (11), and one end of multiple sets of bearing frames (13) is fixed on the mounting floor (11).

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