A screening mechanism for plastic particle processing
By introducing dispersing and vibration damping components into the plastic pellet processing equipment, the problem of poor pellet agglomeration screening was solved, achieving efficient screening and stable equipment operation, and improving screening quality and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN MAGIC CHEM TECH CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-09
Smart Images
Figure CN224334772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic processing equipment technology, specifically a screening mechanism for processing plastic granules. Background Technology
[0002] Plastics are a class of high molecular organic compounds, also known as plastics. They are mainly composed of synthetic or natural resins and can be molded into various shapes under certain temperature and pressure conditions, and can maintain their shape at room temperature.
[0003] The applicant discovered through a search that a Chinese patent, "A Screening Mechanism for Plastic Particle Processing," with publication number "CN 217862271 U," mainly utilizes a screening plate installed at the bottom of a discharge plate. Multiple discharge holes of varying sizes are opened inside the screening plate. Rotating the screening plate causes the discharge holes, from smallest to largest, to overlap with the through holes, allowing plastic particles smaller than the hole diameter to fall through. This enables the screening and classification of plastic particles, thereby improving the screening quality. However, this device cannot effectively screen for agglomerates or lumps. Therefore, we propose a screening mechanism for plastic particle processing. Utility Model Content
[0004] The purpose of this invention is to provide a screening mechanism for processing plastic granules.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a screening mechanism for processing plastic granules, comprising an upper screen plate and a lower screen plate, wherein a first outer shell is provided on the outer side of the upper screen plate, and a dispersing component is provided on the upper screen plate;
[0006] The dispersing assembly includes a first motor, a bracket, a dispersing disc, hydraulic rods, a baffle plate, a positioning rod, and a movable frame. Three sets of brackets are provided, all mounted on the top of the first outer shell. A slot is formed in the middle of each bracket. One side of the movable frame is located within this slot. A placement plate is installed in the middle of the movable frame. The first motor is mounted on the placement plate. The dispersing disc is mounted on the output end of the first motor. Two sets of hydraulic rods are provided, mounted in the slots on both sides. The upper ends of the hydraulic rods are located below the movable frame. A positioning hole is formed on the surface of the rear movable frame. The positioning rod is installed in the slot and passes through the positioning hole. The baffle plate is mounted on the top of the upper screen plate.
[0007] As a further embodiment of this utility model: multiple sets of first leakage holes are opened on the surface of the upper sieve plate and the barrier plate, two sets of locking holes are opened on the surface of the barrier plate, the locking holes penetrate the upper sieve plate, a pin is installed in the locking hole, and a limit strip is provided below the dispersing plate.
[0008] As a further embodiment of this utility model: a second outer shell is installed on the outer side of the lower screen plate, a feeding plate is installed below the lower screen plate, a third outer shell is installed on the outer side of the feeding plate, and four sets of load-bearing columns are installed on the outer side of the first outer shell, the load-bearing columns being fixed to the outer sides of the second and third outer shells.
[0009] As a further embodiment of this utility model: a vibration damping assembly is provided below the load-bearing column. The vibration damping assembly includes a spring, a damper, a support plate, a protrusion, and a limiting rod. The upper end of the spring is installed on the bottom surface of the load-bearing column, and the lower end of the spring is installed on the top of the support plate. The damper is installed on the top of the support plate and is located inside the spring. The protrusion is installed on both sides of the load-bearing column, and a limiting hole is formed on the surface of the protrusion. The limiting rods are all installed on both sides of the support plate and pass through the limiting hole. A locking block is installed on the upper end of the limiting rod.
[0010] As a further embodiment of this utility model: a base plate is installed on the inner side of the load-bearing column, a second motor is installed on the top of the base plate, a transmission shaft is installed at the output end of the second motor, four sets of support columns are installed on the top of the base plate, and the upper end of the support columns is installed on the bottom surface of the feeding plate.
[0011] As a further embodiment of this utility model: the drive shaft passes through the bottom surface of the feeding plate, the upper end of the drive shaft is installed on the bottom surface of the lower screen plate, and the drive shaft passes through the top of the lower screen plate. The drive shaft is also installed on the bottom surface of the upper screen plate, and the lower screen plate is uniformly provided with second leakage holes.
[0012] As a further embodiment of this utility model: a control panel is installed on the front of the load-bearing column.
[0013] Compared with the prior art, the beneficial effects of this utility model by adopting the above technical solution are as follows:
[0014] 1. This utility model can block the leakage holes on the upper screen plate by rotating the baffle plate into another locking hole. The hydraulic rod can move the movable frame up and down in the slot of the support, thereby driving the first motor and the dispersing plate to adjust the height. At this time, the first motor drives the dispersing plate to rotate at high speed, which can effectively disperse the plastic granule agglomerates or lumps. The limiting strip under the dispersing plate enhances the disturbance of the granules, ensuring that the dispersing is comprehensive and effective, improving the screening efficiency and accuracy. The positioning rod passes through the positioning hole of the movable frame to ensure the stable movement of the movable frame and ensure continuous and efficient screening.
[0015] 2. This utility model utilizes the coordinated operation of springs and dampers to absorb the vibration energy generated by the equipment during screening operations, effectively reducing the impact of vibration on the equipment and the surrounding environment. At the same time, the damper can dissipate vibration energy in a timely manner, preventing resonance. The limiting hole on the protrusion cooperates with the limiting rod to limit the displacement of the load-bearing column during equipment vibration, ensuring that it always maintains the correct position and preventing the equipment from shifting or tipping over due to vibration, thus improving the safety of equipment operation.
[0016] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description
[0017] Figure 1 This is an overall schematic diagram of an embodiment of the present utility model;
[0018] Figure 2 This is a schematic diagram of the explosion of the barrier plate in an embodiment of this utility model;
[0019] Figure 3 This is a schematic cross-sectional view of the support portion in an embodiment of the present utility model;
[0020] Figure 4 This is a schematic front view of the overall embodiment of this utility model;
[0021] Figure 5 for Figure 4 An enlarged diagram of A in the diagram.
[0022] In the diagram: 1. Upper screen plate; 2. Lower screen plate; 3. First outer shell; 31. Second outer shell; 32. Third outer shell; 4. Dispersing assembly; 41. First motor; 42. Support; 43. Dispersing disc; 44. Hydraulic rod; 45. Baffle plate; 46. Positioning rod; 47. Movable frame; 48. First drain hole; 49. Pin; 5. Feeding plate; 6. Load-bearing column; 7. Vibration damping assembly; 71. Spring; 72. Damper; 73. Support plate; 74. Protrusion; 75. Limiting rod; 8. Base plate; 81. Second motor; 82. Drive shaft; 9. Second drain hole. Detailed Implementation
[0023] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand this utility model, but does not constitute a limitation on this utility model.
[0024] Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0025] Please see the appendix Figure 1 -Appendix Figure 5 This utility model discloses a screening mechanism for processing plastic granules, including an upper screen plate 1 and a lower screen plate 2. A first outer shell 3 is provided on the outer side of the upper screen plate 1, providing a solid protective barrier and effectively preventing plastic granules from overflowing from the upper screen plate 1. Three sets of brackets 42 in the dispersing component 4 of the upper screen plate 1 are stably installed on the first outer shell 3. The specially opened slots inside the brackets provide ample space for the flexible movement of the movable frame 47. One side of the movable frame 47 is perfectly embedded in the slot. A first motor 41 is installed on the placement plate, and the dispersing disc 43 connected to its output end can rotate at high speed under the drive of the motor to disperse the agglomerates of plastic granules. For efficient dispersing of lumpy materials, two sets of hydraulic rods 44 are symmetrically installed in the empty slots on both sides, with their upper ends resting against the bottom of the movable frame 47. Operators can flexibly adjust the height of the movable frame 47 through the hydraulic rods 44 according to actual needs, thereby precisely adjusting the distance between the dispersing disc 43 and the upper screen plate 1 to accommodate plastic particles with different properties. The positioning holes on the surface of the movable frame 47 cooperate with the positioning rods 46 in the empty slots to ensure that the movable frame 47 is stable and does not shift during movement. The baffle plate 45 installed on the upper screen plate 1 can effectively block the leakage holes to prevent plastic particles from leaking through the leakage holes during dispersing, thereby improving the overall efficiency and quality of screening.
[0026] In Embodiment 1, multiple sets of first leakage holes 48 are opened on the surface of the upper screen plate 1 and the barrier plate 45. Two sets of locking holes are opened on the surface of the barrier plate 45. The locking holes penetrate the upper screen plate 1 and a pin 49 is installed in the locking holes. A limit strip is provided under the dispersing plate 43. A second outer shell 31 is installed on the outside of the lower screen plate 2. A discharge plate 5 is installed under the lower screen plate 2. A third outer shell 32 is installed on the outside of the discharge plate 5. Four sets of load-bearing columns 6 are installed on the outside of the first outer shell 3. The load-bearing columns 6 are fixed on the outside of the second outer shell 31 and the third outer shell 32.
[0027] Specifically, multiple sets of first perforations 48 are evenly distributed on the surfaces of the upper screen plate 1 and the baffle plate 45. These perforations allow qualified plastic particles, after being dispersed by the dispersing disc 43, to fall quickly, ensuring efficient screening. Two sets of locking holes on the surface of the baffle plate 45 penetrate the upper screen plate 1, and the pins 49 installed in the locking holes enable the baffle plate 45 to change position. The limiting strip under the dispersing disc 43 enhances the disturbance to the material, ensuring more thorough dispersal. The second outer shell 31 installed on the outer side of the lower screen plate 2 also serves to block the internal particles. The outer side of the discharge plate 5 below it is provided with a third outer shell 32 for receiving the screened material. The four sets of load-bearing columns 6 on the outer side of the first outer shell 3 are firmly fixed to the outer side of the second and third outer shells 32, which not only provide stable support for the entire screening mechanism but also enhance the connection stability between the components, ensuring smooth operation of the equipment.
[0028] In embodiment two, a vibration damping assembly 7 is installed below the load-bearing column 6. The vibration damping assembly 7 includes a spring 71, a damper 72, a support plate 73, a protrusion 74, and a limiting rod 75. The upper end of the spring 71 is installed on the bottom surface of the load-bearing column 6, and the lower end of the spring 71 is installed on the top surface of the support plate 73. The damper 72 is installed on the top surface of the support plate 73 and is located inside the spring 71. The protrusion 74 is installed on both sides of the load-bearing column 6, and limiting holes are formed on the surface of the protrusion 74. The limiting rod 75 is installed on both sides of the support plate 73 and passes through the limiting holes. A locking block is installed at the top, a base plate 8 is installed inside the load-bearing column 6, a second motor 81 is installed on the top of the base plate 8, a drive shaft 82 is installed at the output end of the second motor 81, four sets of support columns are installed on the top of the base plate 8, the upper ends of the support columns are installed on the bottom surface of the feeding plate 5, the drive shaft 82 passes through the bottom surface of the feeding plate 5, the upper end of the drive shaft 82 is installed on the bottom surface of the lower screen plate 2, and the drive shaft 82 passes through the top of the lower screen plate 2. The drive shaft 82 is also installed on the bottom surface of the upper screen plate 1. Second leakage holes 9 are evenly opened on the surface of the lower screen plate 2, and a control panel is installed on the front of the load-bearing column 6.
[0029] Specifically, in the vibration damping assembly 7, the upper end of the spring 71 is tightly connected to the bottom surface of the load-bearing column 6, and the lower end is firmly placed on the support plate 73. Utilizing its own elasticity, it effectively buffers the vibrations generated during equipment operation, significantly reducing the impact on the surrounding environment. The damper 72, built into the spring 71, can promptly dissipate vibration energy, preventing excessive oscillation of the spring 71, avoiding equipment resonance, ensuring stable operation, and extending the equipment's service life. The protrusions 74 on both sides of the load-bearing column 6 have surface limiting holes that precisely match the limiting rods 75 on both sides of the support plate 73. The limiting rods 75 pass through the limiting holes and are fixed by top-end locking blocks, restricting the displacement of the load-bearing column 6 and ensuring that the equipment vibrates effectively. It can also maintain stability, avoid tipping, and improve operational safety. The base plate 8 on the inner side of the load-bearing column 6 not only provides an installation platform for the second motor 81, but the four sets of support columns on it also firmly support the discharge plate 5, ensuring the stability of material receiving and transfer. The second motor 81 drives the transmission shaft 82, which passes through the discharge plate 5, the lower screen plate 2 and all the way to the bottom surface of the upper screen plate 1, driving the upper screen plate 1 and the lower screen plate 2 to rotate. The diameter of the first screen hole is larger than that of the second screen hole, realizing the size screening of materials. The control panel installed on the front of the load-bearing column 6 makes it convenient for operators to control and monitor the equipment, improving the ease of operation and the efficiency of equipment operation and management.
[0030] Working principle:
[0031] First, place the plastic granules to be screened on the upper screen plate 1. Start the equipment via the control panel. When it is necessary to break up agglomerates or lumps of plastic granules, first rotate the baffle plate 45 to a suitable position and fix it in the locking hole with the pin 49 to block the leakage hole of the upper screen plate 1. Adjust the height of the movable frame 47 via the hydraulic rod 44, which drives the first motor 41 and the dispersing disc 43 to adjust the height. The positioning rod 46 passes through the positioning hole of the movable frame 47 to ensure the stable movement of the movable frame 47. The first motor 41 drives the dispersing disc 43 to rotate at high speed. The limit strip under the dispersing disc 43 enhances the disturbance to the granules and efficiently disperses the material. After dispersing, rotate the baffle plate 45 to another locking hole so that the upper screen plate 1 is connected to the first leakage hole 48 on the surface of the baffle plate 45. The second motor 81 drives the second motor 43 to rotate at high speed. The drive shaft 82 rotates, causing the upper screen plate 1 and the lower screen plate 2 to rotate synchronously. At this time, smaller plastic particles fall onto the lower screen plate 2 through the first perforation 48. The second perforation 9, which is evenly distributed on the surface of the lower screen plate 2, further screens the plastic particles that fall onto it. Particles that meet the size of the second perforation 9 pass through the lower screen plate 2 and fall onto the discharge plate 5, where they are received and collected by the third housing 32. During the operation of the equipment, the vibration damping component 7 under the load-bearing column 6 plays a role. The spring 71 absorbs the vibration energy generated by the equipment, and the damper 72 consumes the vibration energy, preventing the spring 71 from oscillating excessively and avoiding resonance. The limiting hole on the protrusion 74 cooperates with the limiting rod 75 to limit the displacement of the load-bearing column 6, ensuring the stable and safe operation of the equipment. At this point, the entire workflow is completed.
[0032] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.
[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limiting the scope of protection of this utility model.
[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.
[0035] For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments without departing from the principles and spirit of this utility model will still fall within the protection scope of this utility model.
Claims
1. A screening mechanism for processing plastic granules, comprising an upper screen plate (1) and a lower screen plate (2), wherein a first outer shell (3) is provided on the outer side of the upper screen plate (1), characterized in that: The upper sieve plate (1) is provided with a dispersing component (4); The dispersing assembly (4) includes a first motor (41), a bracket (42), a dispersing disc (43), a hydraulic rod (44), a baffle plate (45), a positioning rod (46), and a movable frame (47). Three sets of brackets (42) are provided, and each bracket (42) is mounted on top of the first outer shell (3). A slot is formed in the middle of each bracket (42), and one side of the movable frame (47) is located within the slot. A placement plate is installed in the middle of the movable frame (47). The first motor (41) is mounted on... Above the placement plate, the dispersing disc (43) is installed at the output end of the first motor (41). Two sets of hydraulic rods (44) are provided, and the two sets of hydraulic rods (44) are installed in the slots on both sides. The upper end of the hydraulic rod (44) is located below the movable frame (47). The movable frame (47) is provided with positioning holes on its surface. The positioning rod (46) is installed in the slot and passes through the positioning hole. The baffle plate (45) is installed on the upper screen plate (1).
2. The screening mechanism for processing plastic granules according to claim 1, characterized in that: Multiple sets of first leakage holes (48) are opened on the surface of the upper sieve plate (1) and the barrier plate (45). Two sets of locking holes are opened on the surface of the barrier plate (45). The locking holes penetrate the upper sieve plate (1). A pin (49) is installed in the locking hole. A limit strip is provided under the dispersing plate (43).
3. The screening mechanism for processing plastic granules according to claim 1, characterized in that: A second outer shell (31) is installed on the outside of the lower screen plate (2), a feeding plate (5) is installed below the lower screen plate (2), a third outer shell (32) is installed on the outside of the feeding plate (5), and four sets of load-bearing columns (6) are installed on the outside of the first outer shell (3). The load-bearing columns (6) are fixed on the outside of the second outer shell (31) and the third outer shell (32).
4. The screening mechanism for processing plastic granules according to claim 3, characterized in that: A vibration damping assembly (7) is provided below the load-bearing column (6). The vibration damping assembly (7) includes a spring (71), a damper (72), a support plate (73), a protrusion (74), and a limiting rod (75). The upper end of the spring (71) is installed on the bottom surface of the load-bearing column (6), and the lower end of the spring (71) is installed on the top of the support plate (73). The damper (72) is installed on the top of the support plate (73) and is located inside the spring (71). The protrusion (74) is installed on both sides of the load-bearing column (6), and a limiting hole is opened on the surface of the protrusion (74). The limiting rod (75) is installed on both sides of the support plate (73) and passes through the limiting hole. A locking block is installed on the upper end of the limiting rod (75).
5. The screening mechanism for processing plastic granules according to claim 4, characterized in that: A base plate (8) is installed on the inner side of the load-bearing column (6). A second motor (81) is installed on the top of the base plate (8). A transmission shaft (82) is installed at the output end of the second motor (81). Four sets of support columns are installed on the top of the base plate (8). The upper end of the support columns is installed on the bottom surface of the feeding plate (5).
6. The screening mechanism for processing plastic granules according to claim 5, characterized in that: The drive shaft (82) passes through the bottom surface of the feeding plate (5). The upper end of the drive shaft (82) is installed on the bottom surface of the lower screen plate (2), and the drive shaft (82) passes through the top of the lower screen plate (2). The drive shaft (82) is also installed on the bottom surface of the upper screen plate (1). The surface of the lower screen plate (2) is uniformly provided with second leakage holes (9).
7. A screening mechanism for processing plastic granules according to claim 6, characterized in that: A control panel is installed on the front of the load-bearing column (6).