Plastic particle powder filtering device for granulator
By using a vibrating motor-driven screening device in the granulator, the powder and strip-shaped particles in the plastic particles are separated, solving the problem of powder and particle mixing and improving screening efficiency and purity.
Patent Information
- Application Number
- CN202520559518.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-28
AI Technical Summary
In the existing technology, the powder generated by the plastic strips cut by the granulator is screened down together with the cut granules, which affects the screening effect of plastic particles.
The mounting frame, driven by a vibration motor, moves the plastic particles on the placement tray to the fine sieve tray and the coarse sieve tray. The fine sieve tray first screens out the powder, and then the coarse sieve tray screens out the strip-shaped particles. Combined with baffles and a collection device, the powder and particles are separated, reducing the probability of mixing and spillage. The height of the sieve tray is adjusted by a jack to improve the screening efficiency.
It effectively separates powder and granules, reduces the mixing of powder and granules, and improves the screening efficiency and purity of plastic particles.
Smart Images
Figure CN223904281U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to a granulator granulation technical field, in particular to a plastic particle filtering powder device for a granulator. BACKGROUND
[0002] Most polymers must be mixed and then granulated into a saleable raw material before being made into final products. The molten polymer is extruded from a hot die to form a long strip, which is then cooled and cut into granules by a pelletizer.
[0003] Because there are uncut strip particles in the cut granules of the granulator, the existing technology usually screens the particles after the plastic strip is cut into granules to separate the strip particles in the granules.
[0004] According to the related technology in the above, the inventor believes that when the cut granules of the granulator are screened, the powder generated by cutting the plastic strip will be screened together with the cut granules, which will affect the screening of the plastic particles. CONTENT OF THE INVENTION
[0005] The purpose of the application is to provide a plastic particle filtering powder device for a granulator to improve the problem that when the cut granules of the granulator are screened, the powder generated by cutting the plastic strip will be screened together with the cut granules, which will affect the screening of the plastic particles.
[0006] The plastic particle filtering powder device for a granulator provided by the application adopts the following technical scheme:
[0007] The plastic particle filtering powder device for a granulator comprises a mounting frame, the mounting frame is provided with a placing disc for placing plastic particles, one end of the placing disc is provided with a fine sieve disc for filtering powder, the position of the fine sieve disc away from the placing disc is provided with a coarse sieve disc, the lower side of the coarse sieve disc is provided with a collection plate for collecting screened plastic particles, the lower side of the mounting frame is provided with a base floatingly connected with the mounting frame, and the mounting frame is provided with a vibration motor.
[0008] By adopting the above technical scheme, the base is arranged below the mounting frame, the mounting frame and the base are floatingly connected, the vibration motor on the mounting frame can drive the mounting frame to vibrate when the vibration motor is started, the plastic particles on the placing disc are moved to the fine sieve disc through vibration, the powder in the plastic particles is first screened out by the fine sieve disc, and then the strip particles in the granules are screened out by the coarse sieve disc, thereby reducing the influence of the powder and the granules with the same size being screened together on the screening of the plastic particles.
[0009] Optionally, the base is provided with an elastic member connected with the mounting frame, the mounting frame is provided with a fixed block on both sides, the fixed block is provided with a connecting groove, the base is provided with a protection rod inserted into the connecting groove on both sides of the mounting frame, and the diameter of the protection rod is smaller than the inner diameter of the connecting groove.
[0010] By adopting the above technical scheme, the elastic member is arranged between the base and the mounting frame, so that the mounting frame is less likely to deviate from the cutter when vibrating with the vibration motor. The connecting groove is arranged on the fixed block, the protection rod is arranged on the base, the protection rod is inserted into the connecting groove, and the diameter of the protection rod is smaller than the inner diameter of the connecting groove, so as to determine the position of the mounting frame and reduce the possibility that the mounting frame deviates from the base when vibrating.
[0011] Optionally, the coarse sieve disc and the fine sieve disc are flatly connected with each other at the position close to each other, and a baffle connected with the collecting plate is arranged below the connection position of the coarse sieve disc and the fine sieve disc.
[0012] By adopting the above technical scheme, the fine sieve disc and the coarse sieve disc are flatly connected with each other, so that the plastic particles can smoothly move to the coarse sieve disc. The baffle is arranged below the connection position of the coarse sieve disc and the fine sieve disc, so as to separate the powder screened by the fine sieve disc from the particles of the same size screened by the coarse sieve disc, and reduce the possibility that part of the powder is mixed into the particles again and part of the particles is bounced off the collecting plate due to vibration.
[0013] Optionally, a collecting hopper for collecting the powder is arranged below the fine sieve disc, and a powder box is arranged below the mounting frame.
[0014] By adopting the above technical scheme, the collecting hopper is arranged below the fine sieve disc, and the powder box is arranged below the mounting frame, so that the powder screened by the fine sieve disc directly enters the powder box through the collecting hopper, and the possibility that the powder is mixed with the screened particles on the collecting plate again due to vibration of the mounting frame is reduced.
[0015] Optionally, a jack is arranged at one end of the mounting frame close to the placing disc, the driving end of the jack is rotationally connected with the placing disc, a supporting rod abutting against the placing disc is arranged below the mounting frame, and the coarse sieve disc is rotationally connected with the mounting frame at a position away from the placing disc.
[0016] By adopting the above technical scheme, the placing disc, the fine sieve disc and the coarse sieve disc are lifted and rotated around the rotating position of the coarse sieve disc by the jack, so that the placing disc is slightly higher than the fine sieve disc, and the fine sieve disc is slightly higher than the coarse sieve disc. Since the frictional forces between different types of plastic particles and the sieve discs are different, the placing disc is lifted by the jack, so that the particles on the placing disc can quickly pass through the fine sieve disc and the coarse sieve disc for screening when the mounting frame vibrates, and the screening efficiency of different types of plastic particles is improved.
[0017] Optionally, the coarse screen disc is provided with a guide plate at a position away from the fine screen disc, and the guide plate is inclined downward away from the coarse screen disc.
[0018] By adopting the above technical scheme, the guide plate is installed at a position away from the coarse screen disc, and the guide plate is inclined downward away from the coarse screen disc, so that the strip-shaped particles left on the coarse screen disc slide along the guide plate under vibration, thereby preventing the strip-shaped particles accumulated on the coarse screen disc from causing blockage of the coarse screen disc.
[0019] Optionally, the guide plate is provided with a collecting groove body at a side away from the coarse screen disc, and the collecting groove body is provided with a discharge pipe opening at an inclined downward end.
[0020] By adopting the above technical scheme, the strip-shaped particles slide along the guide plate and then enter the collecting groove body, and the collecting groove body is connected with the discharge pipe opening at an inclined downward position, and a cloth bag is sleeved on the discharge pipe opening, so that the strip-shaped particles are collected in the cloth bag after sliding from the guide plate, and the strip-shaped particles are recycled.
[0021] Optionally, an elastic gasket is arranged between the protective rod and the inner side wall of the connecting groove.
[0022] By adopting the above technical scheme, the elastic gasket is arranged between the protective rod and the inner side wall of the connecting groove, so as to reduce the mutual collision of the protective rod and the fixed block when the mounting frame vibrates, and the plastic particles on the mounting frame are partially spilled.
[0023] In summary, the present application has at least one of the following beneficial technical effects:
[0024] 1. The base is arranged below the mounting frame, the mounting frame and the base are connected by the floating chain, so that the mounting frame can vibrate together when the vibration motor on the mounting frame is started, the plastic particles on the placing disc are moved to the fine screen disc by vibration, the powder in the plastic particles is first screened out by the fine screen disc, and then the strip-shaped particles in the particles are screened out by the coarse screen disc, thereby reducing the influence of the powder and the particles with the same size on the screening of the plastic particles;
[0025] 2. The baffle is arranged below the connection between the coarse screen disc and the fine screen disc, so as to separate the powder screened out by the fine screen disc and the particles with the same size screened out by the coarse screen disc, thereby reducing the possibility that part of the powder is mixed into the particles again and part of the particles is bounced off the collecting plate due to vibration; the collecting hopper is arranged below the fine screen disc, and the powder box is arranged below the mounting frame, so that the powder screened out by the fine screen disc directly enters the powder box through the collecting hopper, thereby reducing the possibility that the powder is mixed with the screened particles on the mounting frame again;
[0026] 3. The jack drives the placement disc, fine sieve disc and coarse sieve disc to rotate around the rotating part of the coarse sieve disc, so that the placement disc is slightly higher than the fine sieve disc, and the fine sieve disc is slightly higher than the coarse sieve disc. Due to the different friction between different types of plastic particles and the sieve disc, the placement disc is raised by the jack, so that the particles on the placement disc can quickly pass through the fine sieve disc and the coarse sieve disc for screening when the mounting frame vibrates, thereby improving the screening efficiency of different types of plastic particles. BRIEF DESCRIPTION OF DRAWINGS
[0027] Figure 1 is a schematic diagram of the whole plastic particle powder filtering device for a granulator;
[0028] Figure 2 is a partial sectional view of the plastic particle powder filtering device for a granulator in the embodiment.
[0029] In the figure, 1, mounting frame; 11, vibration motor; 12, fixed block; 121, connecting groove; 13, jack; 14, support rod; 2, placement disc; 3, fine sieve disc; 31, baffle; 32, collecting hopper; 33, powder box; 4, coarse sieve disc; 41, guide plate; 42, collecting groove body; 43, discharge port; 5, collecting plate; 6, base; 61, elastic member; 62, protection rod; 63, elastic washer. DETAILED DESCRIPTION
[0030] The following will be described in detail in combination with the accompanying Figure 1 - the accompanying Figure 2 , the present application is further described in detail.
[0031] The plastic particle powder filtering device for a granulator, referring to Figure 1 , includes a mounting frame 1, a placement disc 2 is installed at one end of the mounting frame 1 close to the pelletizer, used to hold the plastic particles cut off by the pelletizer, a fine sieve disc 3 is welded at one end of the placement disc 2, and a coarse sieve disc 4 is welded at a position away from the placement disc 2, so that the placement disc 2, the fine sieve disc 3 and the coarse sieve disc 4 are connected to each other in a flat manner, and the placement disc 2, the fine sieve disc 3 and the coarse sieve disc 4 are made of thin steel plates; a base 6 is installed below the mounting frame 1 and placed on the ground, an elastic member 61 is fixedly installed between the base 6 and the mounting frame 1, the elastic member 61 is an anti-vibration spring, a vibration motor 11 connected to a power source is fixed on the mounting frame 1 by bolts, the mounting frame 1 is vibrated on the base 6 through the anti-vibration spring driven by the vibration motor 11, so that the plastic particles on the placement disc 2 are screened through the fine sieve disc 3 and the coarse sieve disc 4; a collecting plate 5 is installed below the coarse sieve disc 4 to receive the screened plastic particles, and the screened plastic particles enter a material box for storing plastic particles along with the vibration of the mounting frame 1 on the collecting plate 5.
[0032] Referring to Figure 1 and Figure 2Metal fixing block 12 is welded on both sides of mounting frame 1, connecting groove 121 is formed on fixing block 12, protective rod 62 is fixed on base 6 by bolts, protective rod 62 is inserted into connecting groove 121, the diameter size of protective rod 62 is smaller than the inner diameter size of connecting groove 121, the position of mounting frame 1 is determined, and the possibility that mounting frame 1 is deviated from base 6 when vibrating is reduced; elastic gasket 63 made of elastic rubber is arranged between protective rod 62 and the inner side wall of connecting groove 121, the collision between protective rod 62 and fixing block 12 when mounting frame 1 is vibrating is reduced, and the possibility that the plastic particles on mounting frame 1 are spilled is reduced; hydraulic jack 13 is fixed on mounting frame 1 by bolts, the driving end of hydraulic jack 13 is rotatably connected with placing disc 2 through a rotating shaft, supporting rod 14 is welded below mounting frame 1, supporting rod 14 supports placing disc 2 when hydraulic jack 13 is not working; coarse screening disc 4 is rotatably connected with mounting frame 1 through a rotating shaft and a bearing at a position away from placing disc 2, placing disc 2, fine screening disc 3 and coarse screening disc 4 are driven to rise by hydraulic jack 13, and are rotated around the rotating part of coarse screening disc 4, so that placing disc 2 is higher than coarse screening disc 4, and the different kinds of plastic particles on placing disc 2 can still quickly pass through fine screening disc 3 and coarse screening disc 4 for screening when mounting frame 1 is vibrating, and the screening efficiency of the plastic particles is improved.
[0033] With reference to Figure 1 And Figure 2 A baffle plate 31 is welded below the connecting position of fine screening disc 3 and coarse screening disc 4, baffle plate 31 is welded with collecting plate 5, the powder screened by fine screening disc 3 and the particles with the same size screened by coarse screening disc 4 are separated, a collecting hopper 32 is fixed below fine screening disc 3 by bolts, and a powder box 33 is fixed below collecting hopper 32 by bolts, so that the powder screened by fine screening disc 3 directly enters powder box 33 through collecting hopper 32, and the possibility that the powder screened by fine screening disc 3 is mixed with the screened particles on collecting plate 5 again when mounting frame 1 is vibrating is reduced.
[0034] With reference to Figure 2 An inclined guide plate 41 is welded at a position away from fine screening disc 3 of coarse screening disc 4, after the plastic particles are screened by coarse screening disc 4 and the strip-shaped particles are left above coarse screening disc 4, the strip-shaped particles move to guide plate 41 and slide off from guide plate 41 due to the vibration of mounting frame 1, so that the strip-shaped particles accumulated on coarse screening disc 4 do not cause the blockage of coarse screening disc 4; collecting groove body 42 is welded on the side of guide plate 41 away from coarse screening disc 4, a discharging pipe opening 43 is welded on the downwardly inclined position of collecting groove body 42 and communicates with collecting groove body 42, and a cloth bag is sleeved on discharging pipe opening 43, so that the strip-shaped particles slide off from guide plate 41, fall into the cloth bag from discharging pipe opening 43 through collecting groove body 42, and are collected, and the strip-shaped particles are recycled.
[0035] The implementation principle of the embodiment of the application is as follows:
[0036] In actual operation, after the plastic strip is cut into plastic particles by the cutting machine, the plastic particles are sent to the placing disc 2, the jacks 13 on the mounting frame 1 lift the placing disc 2, the placing disc 2, the fine sieve disc 3 and the coarse sieve disc 4 rotate around the rotation position of the coarse sieve disc 4 and the mounting frame 1, the placing disc 2 is slightly higher than the fine sieve disc 3, and the fine sieve disc 3 is slightly higher than the coarse sieve disc 4; then the vibration motor 11 is started, the mounting frame 1 vibrates on the base 6, the plastic particles on the placing disc 2 move to the fine sieve disc 3 along with the vibration, the powder in the plastic particles is sieved out by the fine sieve disc 3, the powder enters the powder box 33 along with the collecting hopper 32 below the fine sieve disc 3, then the plastic particles continue to move to the coarse sieve disc 4, the strip-shaped particles in the plastic particles are sieved out by the coarse sieve disc 4, the plastic particles with the same size fall from the coarse sieve disc 4 to the collecting plate 5 and enter the material box along with the vibration, the strip-shaped particles on the coarse sieve disc 4 fall into the collecting groove 42 along with the vibration from the guide plate 41 and slide to the discharge pipe opening 43, the strip-shaped particles enter the cloth bag along with the discharge pipe opening 43, and the strip-shaped particles are recycled. The powder in the plastic particles is sieved out by the fine sieve disc 3 first, then the strip-shaped particles in the particles are sieved out by the coarse sieve disc 4, the powder is reduced to be sieved out together with the particles with the same size, and the influence of the sieving of the plastic particles is reduced.
[0037] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not limited to the protection scope of the present application, wherein the same parts are indicated by the same reference numerals. Therefore, any equivalent changes made according to the structure, shape and principle of the present application should be covered in the protection scope of the present application.
Claims
1. A device for filtering powder from plastic particles for a pelletizer, characterized by: The application relates to a plastic particle screening device, which comprises a mounting frame (1) provided with a placing disc (2) for placing plastic particles, a fine sieve disc (3) for filtering powder arranged at one end of the placing disc (2), a coarse sieve disc (4) arranged away from the placing disc (2), a collecting plate (5) for collecting screened plastic particles arranged below the coarse sieve disc (4), a base (6) floatingly connected with the mounting frame (1) arranged below the mounting frame (1), and a vibrating motor (11) arranged on the mounting frame (1).
2. The plastic pellet filter powder device for a granulator according to claim 1, characterized by: An elastic member (61) connected with the mounting frame (1) is arranged above the base (6), fixed blocks (12) are arranged on both sides of the mounting frame (1), the fixed blocks (12) are provided with connecting grooves (121), the base (6) is provided with protection rods (62) inserted into the connecting grooves (121) and arranged on both sides of the mounting frame (1), and the diameter of the protection rods (62) is smaller than the inner diameter of the connecting grooves (121).
3. The plastic pellet filter powder device for a granulator according to claim 1, characterized by: The coarse sieve disc (4) is connected with the fine sieve disc (3) in a flat mode, and a baffle (31) connected with the collecting plate (5) is arranged below the connecting position of the coarse sieve disc (4) and the fine sieve disc (3).
4. The plastic pellet filter powder device for a granulator according to claim 3, characterized by: A collecting hopper (32) for collecting powder is arranged below the fine sieve disc (3), and a powder box (33) is arranged below the mounting frame (1) and the collecting hopper (32).
5. The plastic pellet filter powder device for a granulator according to claim 4, characterized by: A jack (13) is arranged at one end of the mounting frame (1) close to the placing disc (2), the driving end of the jack (13) is rotationally connected with the placing disc (2), a supporting rod (14) abutting against the placing disc (2) is arranged below the mounting frame (1) and the placing disc (2), and the coarse sieve disc (4) is rotationally connected with the mounting frame (1) away from the placing disc (2).
6. The plastic pellet filter powder device for a granulator according to claim 5, characterized by: A guide plate (41) is arranged away from the fine sieve disc (3) and the coarse sieve disc (4), and the guide plate (41) is arranged to be inclined downward away from the coarse sieve disc (4).
7. The plastic pellet filter powder device for a granulator according to claim 6, characterized by: A collecting groove body (42) is arranged on the side of the guide plate (41) away from the coarse sieve disc (4), and a discharging pipe opening (43) is arranged at the downward inclined end of the collecting groove body (42).
8. The plastic pellet filter powder device for a granulator according to claim 2, characterized by: An elastic gasket (63) is arranged between the protection rod (62) and the inner wall of the connecting groove (121).