Plastic screening device
Through the intermittent discharge and bumping structure, combined with the up and down movement of the bump plate and the vibration of the vibration motor, the problem of low screening effect and efficiency in traditional plastic particle screening equipment is solved, and efficient plastic particle screening is achieved.
Patent Information
- Application Number
- CN202422473102.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-14
AI Technical Summary
Traditional plastic particle screening equipment is prone to accumulation during continuous discharge, resulting in a decrease in screening effect and efficiency.
The intermittent discharge and bumping material structure is adopted, and the combination of the up and down vibration of the vibration motor through the combination of the bumping plate, ensuring that the plastic particles are evenly dispersed into the screening frame to avoid accumulation.
It effectively avoids the accumulation of plastic particles in the screening frame, and improves the screening effect and efficiency.
Smart Images
Figure CN223173353U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening equipment, and particularly relates to a screening device for plastics. Background Art
[0002] With the accelerating advancement of industrialization and urbanization, plastic products have become an indispensable part of people's daily lives and industrial production. As the basic materials of the plastic industry, they are widely and diversely applied, from simple plastic bags and plastic bottles to complex automotive parts and electronic and electrical accessories.
[0003] With the improvement of environmental awareness and the promotion of environmental protection policies, fully biodegradable plastic particles have been gradually popularized. Such plastic particles can be rapidly degraded in the natural environment, effectively reducing environmental pollution caused by plastic waste. They are widely used in fields such as packaging, agriculture, daily necessities, and construction. During the production process of plastic particles, in order to remove impurities, improve product quality, and ensure uniform particle size, it is necessary to screen plastic particles. However, traditional plastic particle screening equipment generally adopts a continuous discharging method. Although it has high efficiency, it is prone to the phenomenon of plastic particles accumulating in the screening frame, resulting in some plastic particles being inversely discharged without being screened, reducing the screening effect of plastic particles. Therefore, this application proposes a screening device for plastics. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a screening device for plastics, which adopts an intermittent discharging and winnowing structure, can effectively avoid the phenomenon of plastic particles continuously discharging and accumulating in the screening frame, and ensures the screening effect and screening efficiency of plastic particles.
[0005] To achieve the above purpose, the utility model provides the following technical solutions:
[0006] A screening device for plastics, including a main frame body. A screening frame for screening plastic particles is arranged inside the main frame body. Above one end of the screening frame, a feeding hopper is provided. At the bottom of the feeding hopper, a winnowing plate is provided. One end of the winnowing plate is rotatably installed at the bottom of the feeding hopper, and the end of the winnowing plate far from the feeding hopper is distributed towards the middle side of the screening frame. A driving mechanism for driving the winnowing plate to winnow up and down is arranged on the main frame body.
[0007] Preferably, fixing arms are fixed on both sides of the feeding hopper, and a pair of the fixing arms are fixed on the main frame body. The end of the winnowing plate located at the bottom of the feeding hopper is rotatably connected to the fixing arms.
[0008] Preferably, a blanking frame is arranged at the bottom end of the feeding hopper, and a rubber cylinder that can be horizontally blocked by the winnowing plate is connected to the bottom end of the blanking frame.
[0009] Preferably, the driving mechanism includes a fixed cantilever fixed on the side wall of the main frame body, a driving motor installed at the end of the fixed cantilever, a rotating arm radially sleeved on the driving shaft end of the driving motor, a connecting arm rotatably connected to the end of the rotating arm, and a connecting shaft rod rotatably connected to the end of the connecting arm away from the rotating arm. The connecting shaft rod is connected to the end of the winnowing plate away from the feeding hopper.
[0010] Preferably, the bottom end of the main frame body is arranged in a hopper-shaped structure and is communicated with a discharge frame. One end of the screening frame away from the feeding hopper has an opening. The end of the screening frame with the opening penetrates through the end wall of the main frame body. A material receiving box is arranged on the end wall of the main frame body below the opening end of the screening frame.
[0011] Preferably, a screening plate is arranged at the bottom of the screening frame, and the screening plate is arranged to gradually incline downward towards the opening end of the screening frame.
[0012] Preferably, a plurality of springs are connected between the outer side wall of the screening frame and the inner side wall of the main frame body, and a vibration motor is assembled on the outer side wall of the screening frame.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] With the setting of the vibration motor in the present utility model, in cooperation with the spring connection between the screening frame and the inner wall of the main frame body, plastic particles are put into the feeding hopper. The plastic particles fall from the blanking frame onto the winnowing plate, and then are discharged from the winnowing plate into the screening frame. When the vibration motor is started to drive the screening frame to vibrate, the screening plate can vibrate and screen the plastic particles. The screened plastic particles pass through the screening plate and are discharged and collected by the discharge frame. The plastic particles that do not pass through the screening roll down along the inclined screening plate into the material receiving box for collection. The continuous screening operation of the plastic particles can be realized, and the screening efficiency is relatively high.
[0015] With the setting of the winnowing plate in the present utility model, when the driving motor is started to drive the rotating arm to rotate, the rotating arm drives the connecting arm to swing, and the connecting arm pulls the connecting shaft rod to drive the winnowing plate to move up and down. Thus, when the end of the winnowing plate away from the feeding hopper inclines downward, a gap appears between the winnowing plate and the rubber cylinder, and the plastic particles in the feeding hopper fall on the winnowing plate. When the end of the winnowing plate away from the feeding hopper inclines upward to the horizontal position, the winnowing plate is in horizontal contact with the bottom end of the rubber cylinder to block the bottom end of the rubber cylinder, and the plastic particles in the feeding hopper no longer discharge. At the same time, during the upward inclination process of the winnowing plate, the plastic particles on the winnowing plate can be winnowed out, so that the plastic particles are scattered into the screening frame in a parabolic trajectory. This intermittent discharging and winnowing structural mode can effectively avoid the phenomenon of continuous discharging of plastic particles and accumulation in the screening frame, ensuring the screening effect and screening efficiency of the plastic particles.
[0016] Of course, when implementing any product of the present utility model, it is not necessarily required to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is the overall structural schematic diagram of the present utility model;
[0018] Figure 2 is the structural schematic diagram of the feeding hopper and the winnowing plate of the present utility model;
[0019] Figure 3 is the structural schematic diagram of the driving mechanism of the present utility model;
[0020] Figure 4 is the structural schematic diagram of the main frame body of the present utility model;
[0021] Figure 5 is the structural schematic diagram of the screening frame of the present utility model.
[0022] In the figure: 1, main frame body; 2, screening frame; 3, feeding hopper; 4, winnowing plate; 5, material receiving box; 6, discharge frame; 7, fixed arm; 8, driving mechanism; 9, blanking frame; 10, rubber cylinder; 11, fixed cantilever; 12, driving motor; 13, rotating arm; 14, connecting arm; 15, connecting shaft rod; 16, screening plate; 17, spring; 18, vibration motor. Specific embodiments
[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. The following will introduce each embodiment of the present utility model in detail with reference to the drawings.
[0024] Embodiment
[0025] Please refer to Figures 1 to 5 , the present utility model preferably provides the following technical solutions:
[0026] A screening device for plastics, comprising a main frame body 1. Inside the main frame body 1, there is a screening frame 2 for screening plastic particles. Above one end of the screening frame 2, there is a feeding hopper 3. On both sides of the feeding hopper 3, there are fixed arms 7, and a pair of fixed arms 7 are fixed on the main frame body 1. The bottom end of the main frame body 1 is set as a hopper-shaped structure and is connected with a discharge frame 6. One end of the screening frame 2 away from the feeding hopper 3 has an opening, and the end of the screening frame 2 with the opening penetrates through the end wall of the main frame body 1. On the end wall of the main frame body 1, there is a material receiving box 5 located below the opening end of the screening frame 2. At the bottom of the screening frame 2, there is a screening plate 16, and the screening plate 16 is arranged to gradually incline downward towards the opening end of the screening frame 2. Between the outer side wall of the screening frame 2 and the inner side wall of the main frame body 1, there are several springs 17 connected. On the outer side wall of the screening frame 2, there is a vibration motor 18 installed. Through the above structural method, plastic particles are put into the feeding hopper 3, and the plastic particles fall into the screening frame 2. By using the connection of springs 17 between the screening frame 2 and the inner wall of the main frame body 1, starting the vibration motor 18 to drive the screening frame 2 to vibrate can make the screening plate 16 vibrate and screen the plastic particles. The screened plastic particles pass through the screening plate 16 and are discharged and collected by the discharge frame 6. The plastic particles that do not pass through the screening roll down along the inclined screening plate 16 into the material receiving box 5 for collection. The continuous screening operation of plastic particles can be realized, and it has a high screening efficiency.
[0027] In a further embodiment, a winnowing plate 4 is arranged at the bottom of the feeding hopper 3. One end of the winnowing plate 4 is rotatably installed at the bottom of the feeding hopper 3. Specifically, the end of the winnowing plate 4 located at the bottom of the feeding hopper 3 is rotatably connected with the fixed arm 7. The end of the winnowing plate 4 away from the feeding hopper 3 is distributed towards one side of the middle of the screening frame 2. On the main frame body 1, there is a driving mechanism 8 for driving the winnowing plate 4 to winnow up and down. At the bottom end of the feeding hopper 3, there is a blanking frame 9, and at the bottom end of the blanking frame 9, there is a rubber cylinder 10 that can be horizontally blocked by the winnowing plate 4. By using the driving mechanism 8 to drive the winnowing plate 4 to winnow up and down, when the end of the winnowing plate 4 away from the feeding hopper 3 inclines downward, there is a gap between the winnowing plate 4 and the rubber cylinder 10, and the plastic particles in the feeding hopper 3 fall on the winnowing plate 4. When the end of the winnowing plate 4 away from the feeding hopper 3 inclines upward to the horizontal position, the winnowing plate 4 is in horizontal contact with the bottom end of the rubber cylinder 10, blocking the bottom end of the rubber cylinder 10, and the plastic particles in the feeding hopper 3 no longer discharge, realizing intermittent discharging. And during the process of the winnowing plate 4 inclining upward, the plastic particles on the winnowing plate 4 can be winnowed out, so that the plastic particles are scattered into the screening frame 2 in a parabolic trajectory. The combination of intermittent discharging and winnowing can effectively avoid the phenomenon of plastic particles continuously discharging and piling up in the screening frame 2, ensuring the screening effect and screening efficiency of plastic particles.
[0028] In this embodiment, the driving mechanism 8 includes a fixed cantilever 11 fixed on the side wall of the main frame 1, a driving motor 12 installed at the end of the fixed cantilever 11, a rotating arm 13 radially sleeved on the driving shaft end of the driving motor 12, a connecting arm 14 rotatably connected to the end of the rotating arm 13, and a connecting shaft rod 15 rotatably connected to the end of the connecting arm 14 away from the rotating arm 13. The connecting shaft rod 15 is connected to the end of the winnowing plate 4 away from the feeding hopper 3. Starting the driving motor 12 drives the rotating arm 13 to rotate, the rotating arm 13 drives the connecting arm 14 to swing, and the connecting arm 14 pulls the connecting shaft rod 15 to drive the winnowing plate 4 to winnow up and down, so as to realize the winnowing of plastic particles.
[0029] During use, plastic particles are put into the feeding hopper 3. The plastic particles fall from the blanking frame 9 onto the winnowing plate 4, and then are discharged from the winnowing plate 4 into the screening frame 2. By starting the vibration motor 18 and cooperating with the connection between the screening frame 2 and the inner wall of the main frame 1 by springs 17, the screening frame 2 is driven to vibrate, so that the screening plate 16 can vibrate and screen the plastic particles. The screened plastic particles pass through the screening plate 16 and are discharged and collected by the discharge frame 6. The plastic particles that do not pass through the screening roll down along the inclined screening plate 16 into the material receiving box 5 for collection, realizing the continuous screening operation of plastic particles. Further, starting the driving motor 12 drives the rotating arm 13 to rotate, the rotating arm 13 drives the connecting arm 14 to swing, and the connecting arm 14 pulls the connecting shaft rod 15 to drive the winnowing plate 4 to winnow up and down. Thus, when the end of the winnowing plate 4 away from the feeding hopper 3 tilts downward, a gap appears between the winnowing plate 4 and the rubber cylinder 10, and the plastic particles in the feeding hopper 3 fall on the winnowing plate 4. When the end of the winnowing plate 4 away from the feeding hopper 3 tilts upward to the horizontal, the winnowing plate 4 is in horizontal contact with the bottom end of the rubber cylinder 10, blocking the bottom end of the rubber cylinder 10. At this time, the plastic particles in the feeding hopper 3 no longer discharge. At the same time, during the upward tilt of the winnowing plate 4, the plastic particles on the winnowing plate 4 can be winnowed out, so that the plastic particles are scattered into the screening frame 2 in a parabolic trajectory. This intermittent discharging and winnowing structural method can effectively avoid the accumulation of plastic particles during continuous discharging in the screening frame 2, ensuring the screening effect and screening efficiency of plastic particles.
[0030] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Among them, there are various ways of detachable installation. For example, it can be by the way of cooperation of plugging and buckling, or by the way of bolt connection, etc.
[0031] The above combines the embodiments and the drawings to clearly and completely describe the concept, specific structure and technical effects of the present utility model, so as to fully understand the purpose, features and effects of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present utility model. In addition, all the connection / linkage relationships mentioned in the text do not refer only to the direct connection of components, but refer to the formation of a more optimal connection structure by adding or reducing connection accessories according to the specific implementation situation.
[0032] The above specific description of the present utility model is only used to further illustrate the present utility model and cannot be understood as a limitation on the protection scope of the present utility model. Any non-essential improvements and adjustments made by those skilled in the art to the present utility model based on the content of the above utility model fall within the protection scope of the present utility model.
Claims
1. A screening device for plastics, comprising a main frame body (1), characterized in that: A screening frame (2) for screening plastic particles is arranged inside the main frame body (1). Above one end of the screening frame (2), a feeding hopper (3) is provided. At the bottom of the feeding hopper (3), a winnowing plate (4) is provided. One end of the winnowing plate (4) is rotatably installed at the bottom of the feeding hopper (3). The end of the winnowing plate (4) away from the feeding hopper (3) is distributed towards one side of the middle of the screening frame (2). A driving mechanism (8) for driving the winnowing plate (4) to winnow up and down is arranged on the main frame body (1).
2. The screening device for a plastic according to claim 1, characterized in that: Fixed arms (7) are fixed on both sides of the feeding hopper (3). A pair of the fixed arms (7) are fixed on the main frame body (1). The end of the winnowing plate (4) located at the bottom of the feeding hopper (3) is rotatably connected to the fixed arms (7).
3. A screening device for plastics according to claim 1, characterized in that: A blanking frame (9) is arranged at the bottom end of the feeding hopper (3). A rubber cylinder (10) that can be horizontally blocked by the winnowing plate (4) is connected to the bottom end of the blanking frame (9).
4. A screening device for plastics according to claim 1, characterized in that: The driving mechanism (8) includes a fixed cantilever (11) fixed on the side wall of the main frame body (1), a driving motor (12) installed at the end of the fixed cantilever (11), a rotating arm (13) radially sleeved on the driving shaft end of the driving motor (12), a connecting arm (14) rotatably connected to the end of the rotating arm (13), and a connecting shaft rod (15) rotatably connected to the end of the connecting arm (14) away from the rotating arm (13). The connecting shaft rod (15) is connected to the end of the winnowing plate (4) away from the feeding hopper (3).
5. A screening device for plastics according to claim 1, characterized in that: The bottom end of the main frame body (1) is arranged in a funnel-shaped structure and is communicated with a discharge frame (6). One end of the screening frame (2) away from the feeding hopper (3) has an opening. The end of the screening frame (2) with the opening penetrates through the end wall of the main frame body (1). A receiving box (5) is arranged on the end wall of the main frame body (1) below the opening end of the screening frame (2).
6. The screening device for plastics according to claim 5, characterized in that: A screening plate (16) is arranged at the bottom of the screening frame (2). The screening plate (16) is arranged to incline gradually downward towards the opening end of the screening frame (2).
7. A screening device for plastics according to claim 1, characterized in that: A plurality of springs (17) are connected between the outer side wall of the screening frame (2) and the inner side wall of the main frame body (1). A vibration motor (18) is assembled on the outer side wall of the screening frame (2).