Automatic weighing and sorting device for engineering plastic granulation
By setting up plastic particle baffles and vibrating motors in the engineering plastics sorting device, combined with inclined screening screens and flow guiding structures, the problem of low sorting efficiency caused by rapid plastic falling is solved, and high-precision particle size sorting is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JINREN NEW MATERIAL CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-26
AI Technical Summary
In existing engineering plastic sorting devices, no blocking structure is set above the screening screen, which causes the plastic to fall rapidly under the action of the vibrating motor, resulting in poor sorting efficiency.
Multiple plastic particle baffles are set on the plastic screening mesh. Combined with the vibration of the vibrating motor, plastic particles of different sizes are forced to pass through the screening holes of corresponding pore sizes. With the help of the inclined design and the flow guiding structure, automatic weighing and sorting are achieved.
It improves the sorting accuracy and efficiency of plastic granules, reduces the number of granules discharged directly without screening, and ensures the accuracy of sorting by particle size.
Smart Images
Figure CN224405740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic production technology, and in particular to an automatic weighing and sorting device for engineering plastic granulation. Background Technology
[0002] Engineering plastics are plastics used as engineering materials and to replace metals in the manufacture of machine parts. They possess excellent comprehensive properties, including high rigidity, low creep, high mechanical strength, good heat resistance, and good electrical insulation. They can be used for extended periods in harsh chemical and physical environments and can replace metals as engineering structural materials. However, they are more expensive and have lower production volumes. A sorting device is needed in the processing of engineering plastics. Chinese utility model patent, authorized publication number "CN218014199U", discloses a raw material sorting device for processing engineering plastic particles, including a screening box, clamping plates, and clamping springs. A dust collection box is fixedly connected to one side of the top of the screening box, and a feeding hopper is fixedly connected to the other side of the top of the screening box. A dustproof clamping plate is fixedly connected to the top of the feeding hopper. Guide rails are fixedly connected to both ends of both sides of the dustproof clamping plate. The four guide rails are slidably connected to the two sides of the bottom of the two clamping plates. Connecting columns are fixedly connected to both sides of the top of the clamping plates. The four connecting columns are respectively engaged with the two ends of the two clamping springs. An impurity filter frame is fixedly connected to the middle of the inner cavity of the screening box. A lead screw is rotatably connected to one side of the impurity vertical plate. A sleeve is threadedly connected to the surface of the lead screw. An electromagnet adsorption plate is fixedly connected to the top of the sleeve.
[0003] The above technical solution prevents dust from floating into the working environment during the feeding process and achieves the purpose of removing dust, light floating objects and metal from the material. However, the above technical solution still has certain defects. Since no blocking structure is set above the screening screen, the plastic falls quickly under the action of the vibrating motor when passing through the screening screen, which can easily cause some unscreened plastic to be discharged directly from the discharge plate, resulting in poor sorting efficiency. Therefore, this utility model proposes a new solution. Utility Model Content
[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide an automatic weighing and sorting device for engineering plastic granulation. This device can solve the problem that, due to the lack of a blocking structure above the screening screen, the plastic falls rapidly under the action of the vibrating motor when passing through the screening screen, which easily leads to some unscreened plastic being discharged directly from the discharge plate, resulting in poor sorting efficiency.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic weighing and sorting device for engineering plastic granulation, including a base;
[0006] A plastic sorting assembly is mounted on a base. The plastic sorting assembly includes a screening box, which is installed on the upper part of the base. A second plastic feed hopper is fixedly connected to the upper part of the screening box. An inclined plastic screening screen is fixedly connected inside the screening box. The surface of the plastic screening screen is a downwardly concave arc shape.
[0007] Four plastic discharge pipes are fixedly connected to the front end of the screening box, and four plastic guide grooves are opened on the bottom surface inside the screening box.
[0008] The surface of the plastic screening mesh has multiple plastic screening holes, which are divided into three groups and the size of the holes increases from right to left.
[0009] Multiple second plastic particle baffles are fixedly connected to the surface of the plastic screening mesh.
[0010] Preferably, a belt scale is installed on the upper end of the base, and plastic particle baffles are fixedly connected to both the front and rear sides of the belt scale.
[0011] Multiple baffle connecting plates for supporting the plastic particle baffles are fixedly connected to the inner sides of both plastic particle baffles.
[0012] Preferably, a vibration motor is fixedly connected to the front end of the screening box.
[0013] Preferably, two fixed supports are fixedly connected to the upper end of the base, and a first plastic feed hopper is provided at the upper end of the base;
[0014] Both fixed brackets are fixedly connected to the first plastic feed hopper.
[0015] Preferably, the lower end of the plastic screening mesh is fixedly connected to four "V"-shaped plastic guide plates.
[0016] Preferably, the bottom surface inside the screening box is inclined towards the plastic discharge pipe, and the four plastic guide channels are respectively connected to the corresponding plastic discharge pipes.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. The automatic weighing and sorting device for engineering plastic granulation features multiple plastic particle baffles on the surface of the plastic screening screen. When plastic particles fall onto the screen, these baffles effectively block the particles and reduce their flow speed on the screen surface. This allows plastic particles of different sizes more time to contact the corresponding pore sizes of the plastic screening holes, reducing the situation where particles are discharged directly without being screened due to rapid slippage. This effectively avoids the problem of some plastic being discharged from the discharge plate without being screened, thereby improving the accuracy of sorting engineering plastic particles according to particle size. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0020] Figure 1 This is a schematic diagram of the structure of an automatic weighing and sorting device for engineering plastic granulation according to the present invention.
[0021] Figure 2 This is a schematic diagram of the first plastic feed hopper of this utility model;
[0022] Figure 3 This is a schematic diagram of the baffle connecting plate of this utility model;
[0023] Figure 4 This is a schematic diagram of the screening box of this utility model;
[0024] Figure 5 This is a schematic diagram of the plastic discharge pipe of this utility model;
[0025] Figure 6 This is a schematic diagram of the plastic screening mesh of this utility model.
[0026] Reference numerals in the attached drawings: 1. Base; 2. Belt scale; 3. Screening box; 4. Plastic particle baffle; 5. Baffle connecting plate; 6. Fixed bracket; 7. First plastic feed hopper; 8. Second plastic feed hopper; 9. Vibrating motor; 10. Plastic screening screen; 11. Plastic guide channel; 12. Plastic discharge pipe; 13. Second plastic particle baffle; 14. Plastic guide plate; 15. Plastic screening hole. Detailed Implementation
[0027] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0028] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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 limitations on this utility model.
[0029] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.
[0030] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0031] Please see Figure 1-6 This utility model provides a technical solution: an automatic weighing and sorting device for engineering plastic granulation, including a base 1 and a plastic sorting component. The plastic sorting component is set on the base 1 and includes a screening box 3. The screening box 3 is installed on the upper end of the base 1. A second plastic feed hopper 8 is fixedly connected to the upper end of the screening box 3. An inclined plastic screening screen 10 is fixedly connected inside the screening box 3. The surface of the plastic screening screen 10 is a downwardly concave arc shape. Four plastic discharge pipes 12 are fixedly connected to the front end of the screening box 3. Four plastic guide grooves 11 are opened on the bottom surface inside the screening box 3. Multiple plastic screening holes 15 are opened on the surface of the plastic screening screen 10. The multiple plastic screening holes 15 are divided into three groups and the aperture increases sequentially from right to left. Multiple second plastic particle baffles 13 are fixedly connected to the surface of the plastic screening screen 10.
[0032] A belt scale 2 is installed on the upper end of the base 1. Plastic particle baffles 4 are fixedly connected to both the front and rear sides of the belt scale 2. Multiple baffle connecting plates 5 for supporting the plastic particle baffles 4 are fixedly connected to the inner sides of the two plastic particle baffles 4.
[0033] A vibration motor 9 is fixedly connected to the front end of the screening box 3.
[0034] Two fixed brackets 6 are fixedly connected to the upper end of the base 1, and a first plastic feed hopper 7 is provided at the upper end of the base 1. Both fixed brackets 6 are fixedly connected to the first plastic feed hopper 7.
[0035] Four “V”-shaped plastic guide plates 14 are fixedly connected to the lower end of the plastic screening mesh 10.
[0036] The bottom surface inside the screening box 3 is inclined towards the plastic discharge pipe 12, and the four plastic guide channels 11 are respectively connected to the corresponding plastic discharge pipes 12.
[0037] When using this device, engineering plastic granules are fed from the first plastic feed hopper 7. Since the first plastic feed hopper 7 is installed on the right side above the belt scale 2, the granules naturally fall onto the surface of the belt scale 2. The belt scale 2 adopts the ICS series electronic belt scale, which works on the basis of measuring the weight of the material on the belt conveyor and the belt running speed. Through internal sensors and calculation system, it realizes automatic weighing of plastic granules passing through the belt. During the conveying process, the plastic granule baffles 4 and the baffle connecting plates 5 on the front and rear sides of the belt scale 2 play a role. The plastic granule baffles 4 can prevent plastic granules from falling from both sides of the belt, ensuring stable conveying of materials on the belt. The baffle connecting plates 5 enhance the structural stability of the plastic granule baffles 4, making the entire conveying process more reliable.
[0038] After being weighed, the plastic granules are transported from the left side of the belt scale 2 to the second plastic feed hopper 8 at the top of the screening box 3 as the belt rotates. They then fall evenly onto the plastic screening screen 10 inside the screening box 3 through the second plastic feed hopper 8.
[0039] The plastic screening mesh 10 is inclined and its surface is concave downwards in an arc shape. Multiple plastic screening holes 15 are divided into three groups, with the pore size increasing from right to left. The second plastic particle baffle 13 fixed on the surface of the plastic screening mesh 10 begins to play a key role. When plastic particles fall onto the screening mesh, the second plastic particle baffle 13 blocks them, reducing the flow speed of the plastic particles on the surface of the plastic screening mesh 10, allowing the plastic particles more time to contact the screening holes. At the same time, the vibration motor 9 fixedly connected to the front end of the screening box 3 starts to work, and the vibration generated is transmitted to the entire screening box 3 and the plastic screening mesh 10 inside. Under the action of vibration, the plastic particles jump continuously, further promoting the passage of plastic particles of different sizes through the plastic screening holes 15 with corresponding pore sizes. Smaller plastic particles preferentially pass through the smaller pores on the right side, while larger plastic particles move to the left and pass through the gradually increasing pore sizes of the screening holes.
[0040] Plastic particles passing through the plastic screening holes 15 fall onto four "V"-shaped plastic guide plates 14 fixedly connected to the lower end of the plastic screening mesh 10. The "V"-shaped plastic guide plates 14 can concentrate the falling plastic particles into the plastic guide channels 11 on the bottom surface of the screening box 3. Since the bottom surface of the screening box 3 is inclined towards the plastic discharge pipe 12, and the four plastic guide channels 11 are respectively connected to the corresponding plastic discharge pipes 12, the plastic particles flow along the plastic guide channels 11 under the action of gravity and are finally discharged from the corresponding plastic discharge pipes 12, completing the sorting process according to particle size. The plastic particles discharged from different discharge pipes correspond to different particle size ranges, thereby realizing the automatic weighing and sorting function of engineering plastic granulation.
[0041] Furthermore, multiple second plastic particle baffles 13 are provided on the surface of the plastic screening mesh 10. When plastic particles fall onto the screening mesh, these baffles can effectively block the particles and reduce their flow speed on the screening mesh surface. This allows plastic particles of different sizes to have more time to contact the plastic screening holes 15 of the corresponding pore size, reducing the situation where particles are discharged directly without being screened due to rapid slippage. This effectively avoids the problem of some plastic being discharged from the discharge plate without being screened, thereby improving the accuracy of sorting engineering plastic particles according to particle size.
[0042] When the vibration motor 9 at the front end of the screening box 3 is working, the vibration generated is transmitted to the entire screening box and the plastic screening screen 10 inside, causing the plastic particles to jump continuously. Under the dual action of vibration and the second plastic particle baffle 13, plastic particles of different sizes can find the matching screening holes more quickly and pass through, thus speeding up the screening process. On the other hand, the "V"-shaped plastic guide plate 14 can efficiently guide the plastic particles that pass through the screening holes to the plastic guide channel 11. Combined with the inclined design of the bottom surface of the screening box 3 and the connection structure between the guide channel and the plastic discharge pipe 12, the plastic particles can be discharged quickly and smoothly from the corresponding discharge pipe, which greatly improves the overall sorting efficiency.
[0043] Structural Description: Base 1: Provides a stable support foundation for the entire device, bearing components such as the plastic sorting assembly, belt scale 2, and fixed bracket 6, ensuring the stability of the device during operation;
[0044] Belt scale 2 (ICS series electronic belt scale): It automatically weighs the engineering plastic granules falling from the first plastic feed hopper 7. By measuring the weight of the material on the belt conveyor and the belt running speed, the weight data is obtained through internal sensors and calculation system. At the same time, during the conveying of plastic granules, it works with the plastic granule baffles 4 and baffle connecting plates 5 on the front and rear sides to ensure stable material conveying.
[0045] Plastic granule baffle 4: Installed on both the front and rear sides of belt scale 2 to prevent plastic granules from falling off the sides of the belt during belt conveying, ensuring stable material conveying on the belt;
[0046] Baffle connecting plate 5: Fixed on the inner side of the two plastic particle baffles 4, used to support the plastic particle baffles 4, enhance the structural stability of the plastic particle baffles 4, and make the conveying process more reliable;
[0047] Fixed bracket 6: Fixed to the upper end of the base 1, used to support the first plastic feed hopper 7, ensuring its stable position, so that the engineering plastic particles can fall smoothly into the belt scale 2;
[0048] First plastic feed hopper 7: As the initial feed inlet for engineering plastic granules, it is located on the upper right side of belt scale 2, allowing the granules to fall naturally onto the surface of belt scale 2, providing a material source for subsequent weighing and sorting processes;
[0049] The second plastic feed hopper 8 is connected to the upper end of the screening box 3. It receives plastic particles from the belt scale 2 and evenly guides them onto the plastic screening screen 10 inside the screening box 3, thus serving as a transition feed.
[0050] Screening box 3: It is one of the core components of the plastic sorting assembly. It is equipped with plastic screening screen 10 inside, connected to vibration motor 9 and plastic discharge pipe 12 at the front end, and has plastic guide channel 11 at the bottom, which provides space and structural support for screening and guiding plastic particles.
[0051] Vibration motor 9: Fixed at the front end of screening box 3, it generates vibration during operation, which is transmitted to the entire screening box 3 and the plastic screening screen 10 inside, causing the plastic particles to jump continuously. In conjunction with the second plastic particle baffle 13, it accelerates the speed at which plastic particles of different sizes pass through the corresponding screening holes, thereby improving screening efficiency.
[0052] Plastic screening mesh 10: It is inclined and the surface is concave downward in an arc shape. The surface is provided with three groups of plastic screening holes 15 with the aperture increasing from right to left, and a second plastic particle baffle 13 is fixed thereon. Its function is to sort and screen plastic particles of different sizes through the screening holes. The second plastic particle baffle 13 reduces the flow speed of particles on the surface of the screening mesh and improves the screening accuracy.
[0053] Plastic guide channel 11: It is set inside the bottom surface of the screening box 3. There are four plastic guide channels 11, which are connected to the corresponding plastic discharge pipes 12. Its function is to guide the plastic particles guided by the plastic guide plate 14 to the plastic discharge pipes 12 under the action of gravity, so as to realize the flow of materials.
[0054] Plastic discharge pipe 12: Fixed at the front end of screening box 3, there are four in total, used to discharge plastic particles of different sizes after screening and guiding, and complete the sorting process;
[0055] Second plastic particle baffle 13: Fixed on the surface of plastic screening mesh 10, it blocks plastic particles falling on the screening mesh, reduces their flow speed, and allows plastic particles of different sizes to have more time to contact the screening holes, thereby improving sorting accuracy.
[0056] Plastic guide plate 14: It is V-shaped and fixed at the lower end of the plastic screening screen 10. There are four plastic guide plates 14 in total. Its function is to concentrate the plastic particles passing through the plastic screening hole 15 into the plastic guide groove 11 on the bottom surface of the screening box 3, so as to facilitate the subsequent guidance and discharge of the material.
[0057] Plastic screening holes 15: Distributed on the surface of plastic screening mesh 10, divided into three groups with the pore size increasing from right to left, it is the key structure for sorting plastic particles according to particle size. Plastic particles of different sizes are separated by passing through the screening holes with corresponding pore sizes.
[0058] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. An automatic weighing and sorting device for engineering plastic granulation, characterized in that: Including the base (1); Plastic sorting assembly, the plastic sorting assembly is set on the base (1), the plastic sorting assembly includes a screening box (3), the screening box (3) is installed on the upper end of the base (1), the upper end of the screening box (3) is fixedly connected to a second plastic feed hopper (8), the inside of the screening box (3) is fixedly connected to an inclined plastic screening screen (10), the surface of the plastic screening screen (10) is a downward concave arc shape; Four plastic discharge pipes (12) are fixedly connected to the front end of the screening box (3), and four plastic guide grooves (11) are opened on the bottom surface inside the screening box (3). The surface of the plastic screening mesh (10) is provided with multiple plastic screening holes (15), which are divided into three groups and the pore size increases from right to left. Multiple second plastic particle baffles (13) are fixedly connected to the surface of the plastic screening mesh (10).
2. The automatic weighing and sorting device for engineering plastic granulation according to claim 1, characterized in that: A belt scale (2) is installed on the upper end of the base (1), and plastic particle baffles (4) are fixedly connected to both the front and rear sides of the belt scale (2). Multiple baffle connecting plates (5) for supporting the plastic particle baffles (4) are fixedly connected to the inner sides of both plastic particle baffles (4).
3. The automatic weighing and sorting device for engineering plastic granulation according to claim 1, characterized in that: The front end of the screening box (3) is fixedly connected to a vibration motor (9).
4. The automatic weighing and sorting device for engineering plastic granulation according to claim 1, characterized in that: The upper end of the base (1) is fixedly connected to two fixed brackets (6), and the upper end of the base (1) is provided with a first plastic feed hopper (7). Both fixed brackets (6) are fixedly connected to the first plastic feed hopper (7).
5. An automatic weighing and sorting device for engineering plastic granulation according to claim 1, characterized in that: The lower end of the plastic screening mesh (10) is fixedly connected to four "V"-shaped plastic guide plates (14).
6. The automatic weighing and sorting device for engineering plastic granulation according to claim 1, characterized in that: The bottom surface inside the screening box (3) is inclined toward the plastic discharge pipe (12), and the four plastic guide channels (11) are respectively connected to the corresponding plastic discharge pipe (12).