A screening device for plastic production
Patent Information
- Application Number
- CN202521953030.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-09-11
AI Technical Summary
[0003]然而，在现有的塑料生产筛选装置中，筛板上的筛孔在长时间使用后容易出现堵塞现象，严重影响了筛选效果和生产效率，当筛孔被堵塞后，不仅会导致合格塑料颗粒的通过率降低，还可能使筛选装置的筛选精度下降，增加生产成本和次品率
1.本实用新型通过在倾斜板的凹槽内设置滑动条、安装条以及顶杆等结构，能够有效清理筛选孔内部堵塞的塑料颗粒。当推动滑动条时，滑动条带动安装条快速移动，顶杆与筛选孔对齐，在连接弹簧的瞬时弹力作用下，将卡在筛选孔中的塑料颗粒推出，从而避免筛选孔被堵塞，保障了筛选效果，提高了塑料生产筛选装置的工作效率和筛选质量，减少了因堵塞导致的生产中断和原料浪费，提升了整个塑料生产过程的流畅性和稳定性。
Smart Images
Figure CN224881018U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic screening technology, and in particular to a screening device for plastic production. Background Technology
[0002] In the plastic production process, the screening of plastic granules is a crucial step. Screening devices can effectively remove impurities and granules that do not meet the required size from the plastic granules, ensuring that the product quality meets the requirements for subsequent processing and use.
[0003] However, in existing plastic production screening equipment, the screen holes on the screen plate are prone to clogging after long-term use, which seriously affects the screening effect and production efficiency. When the screen holes are clogged, it will not only reduce the pass rate of qualified plastic particles, but also reduce the screening accuracy of the screening equipment, increase production costs and the defect rate.
[0004] To address the problem of difficult-to-clean screen holes in existing technologies, this invention proposes a screening device for plastic production. Through ingenious structural design, it can effectively clean the blockages in the screen holes while preventing the sliding bars from moving arbitrarily, thus ensuring the stable operation of the screening device. Utility Model Content
[0005] To achieve the above objectives, this utility model proposes a screening device for plastic production, including a vibrating table and a screening box fixedly installed on the upper surface of the vibrating table. The screening box has a first discharge port on its side. An inclined plate is fixedly connected to the inner wall of the first discharge port. A screening hole is opened on the upper surface of the inclined plate, and a groove is opened on the lower surface of the inclined plate. Two sliding strips are slidably installed inside the groove. An installation strip is installed on the opposite side of the two sliding strips. A T-shaped groove is opened on the upper surface of the installation strip. A top rod is slidably installed inside the T-shaped groove. A connecting spring is installed on the opposite side of the top rod and the T-shaped groove. The top of the top rod is hemispherical. An operating rod is fixedly connected to the sliding bar at the position facing the discharge port of the inclined plate, and an operating block is fixedly installed on the end face of the operating rod.
[0006] In one example, a sleeve is fixedly connected to the side of the inclined plate, the sleeve is fitted onto the surface of the operating rod, and several elastic arc plates are fixedly connected to the end face of the sleeve.
[0007] In one example, the inner annular surface of the elastic arc plate overlaps with the surface of the operating rod.
[0008] In one example, the sleeve is threaded with a hexagonal ring, and an arc-shaped ring is fixedly connected to the inner ring surface of the hexagonal ring. The inner ring surface of the arc-shaped ring overlaps with the outer ring surface of the elastic arc plate.
[0009] In one example, a limit block is fixedly connected to the surface of the slider.
[0010] In one example, the inner wall of the groove has a limiting groove, and the surface of the limiting block overlaps with the inner wall of the limiting groove.
[0011] In one example, the screening box has a second discharge port on its side, and a discharge plate is fixedly connected to the inner wall of the second discharge port.
[0012] The screening device for plastic production proposed in this utility model can bring the following beneficial effects: 1. This utility model, by incorporating a sliding bar, mounting bar, and push rod within the groove of an inclined plate, effectively clears plastic particles clogging the screening holes. When the sliding bar is pushed, it causes the mounting bar to move rapidly, aligning the push rod with the screening hole. Under the instantaneous elastic force of the connecting spring, the plastic particles stuck in the screening hole are pushed out, thus preventing clogging and ensuring screening effectiveness. This improves the working efficiency and screening quality of the plastic production screening device, reduces production interruptions and raw material waste caused by clogging, and enhances the smoothness and stability of the entire plastic production process.
[0013] 2. This utility model, through a clamping mechanism composed of a sleeve, an elastic arc plate, a hexagonal ring, and an arc-shaped ring, effectively prevents the sliding bar from moving arbitrarily, ensuring the stable operation of the screening device. When not performing cleaning operations, rotating the hexagonal ring moves the arc-shaped ring, causing the arc-shaped ring to press the elastic arc plate inward and tighten it against the operating rod. Friction force clamps the operating rod, preventing accidental movement of the sliding bar from affecting the normal working state of the screening holes. Simultaneously, when cleaning operations are required, it facilitates quick release of the operating rod, making the operation process more convenient and efficient, and enhancing the reliability and ease of use of the device. Attached Figure Description
[0014] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of a screening device for plastic production. Figure 2 This is a schematic diagram of an inclined plate structure for a screening device used in plastic production. Figure 3 This is a screening device for plastic production. Figure 2 Enlarged structural diagram at point A in the middle; Figure 4 This is a schematic diagram of the internal structure of a sleeve in a screening device for plastic production. Figure 5 This is a schematic diagram of a sliding bar structure for a screening device used in plastic production. Figure 6 This is a schematic diagram of the internal structure of the mounting strip of a screening device used in plastic production. The attached figures are labeled as follows: 1. Vibrating table, 2. Screening box, 3. Inclined plate, 4. Sliding bar, 5. Mounting bar, 6. Top rod, 7. Connecting spring, 8. Operating rod, 9. Discharge plate, 10. Limiting block, 11. Sleeve, 12. Elastic arc plate, 13. Hexagonal ring, 14. Arc ring. Detailed Implementation
[0015] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.
[0016] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0018] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0019] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.
[0020] like Figures 1 to 6 As shown, this utility model proposes a screening device for plastic production, including a vibrating table 1, a screening box 2 installed on the upper surface of the vibrating table 1, the vibrating table 1 is composed of a base and a vibrating seat installed on the base, a support spring is installed between the vibrating seat and the base, and limit posts are installed on the upper surface of the base and the lower surface of the vibrating seat inside the support spring. A vibrating motor is fixedly installed on the lower surface of the vibrating seat. The vibration of the vibrating motor can drive the vibrating seat to vibrate, thereby driving the screening box 2 to vibrate for screening.
[0021] The screening box 2 has a first discharge port on its side. An inclined plate 3 is fixedly connected to the inner wall of the first discharge port. A screening hole is formed on the upper surface of the inclined plate 3, and a groove is formed on the lower surface of the inclined plate 3. Two sliding strips 4 are slidably installed inside the groove. An mounting strip 5 is installed on the opposite side of the two sliding strips 4. A top rod 6 for cleaning the inside of the screening hole is installed on the upper surface of the mounting strip 5. A T-shaped groove is formed on the upper surface of the mounting strip 5. The top rod 6 is slidably installed inside the T-shaped groove, and a connecting spring 7 is installed on the opposite side of the top rod 6 and the T-shaped groove. The top of the device is hemispherical. By pushing the sliding bar 4, the sliding bar 4 drives the mounting bar 5 to move quickly. At this time, the sliding bar 4 moves to the bottom of the screening hole. Since it is an instantaneous push, when the top rod 6 is aligned with the screening hole, the instantaneous elastic force of the connecting spring 7 pushes out the plastic particles stuck in the screening hole, thereby clearing the plastic particles stuck in the screening hole and preventing the screening hole from being blocked and affecting the screening effect. At the same time, the hemispherical design of the top of the top rod 6 means that when the sliding bar 4 is pulled back, the hemispherical surface of the top rod 6 will be subjected to force and move downward to be stored in the T-shaped groove, thereby detaching from the screening hole.
[0022] To facilitate the movement of the sliding bar 4, an operating rod 8 is installed at the position of the sliding bar 4 facing the discharge port of the inclined plate 3. A sliding hole is provided in the inner wall of the groove, and the surface of the operating rod 8 overlaps with the inner wall of the sliding hole. An operating block is fixedly installed on the end face of the operating rod 8. To ensure that the top rod 6 is aligned with the screening hole when the sliding bar 4 is pushed, a limiting block 10 is installed on the surface of the sliding bar 4. A limiting groove is provided in the inner wall of the groove, and the limiting block 10 slides in the limiting groove. When the limiting block 10 moves to the blocking position of the limiting groove, it ensures that the top rod 6 is aligned with the screening hole.
[0023] To prevent the sliding bar 4 from moving arbitrarily, a sleeve 11 is installed on the side of the inclined plate 3. The sleeve 11 covers the operating rod 8, and an elastic arc plate 12 is fixedly connected to the end face of the sleeve 11. The inner ring surface of the elastic arc plate 12 overlaps with the surface of the operating rod 8. A hexagonal ring 13 is threadedly connected to the surface of the sleeve 11, and an arc surface ring 14 is fixedly connected to the inner ring surface of the hexagonal ring 13. By rotating the hexagonal ring 13, the arc surface ring 14 is moved. The arc surface ring 14 squeezes the elastic arc plate 12 inward and tightens it against the operating rod 8. The operating rod 8 is clamped by friction, which can prevent the operating rod 8 from moving, thereby preventing the sliding bar 4 from moving.
[0024] The screening box 2 has a second discharge port on its side, and a discharge plate 9 is fixedly connected to the inner wall of the second discharge port. The screened plastic granules can be discharged through the discharge plate 9.
[0025] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.
[0026] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.
Claims
1. A screening device for plastic production, comprising a vibrating table (1) and a screening box (2) fixedly mounted on the upper surface of the vibrating table (1), characterized in that: The screening box (2) has a first discharge port on its side. An inclined plate (3) is fixedly connected to the inner wall of the first discharge port. A screening hole is opened on the upper surface of the inclined plate (3). A groove is opened on the lower surface of the inclined plate (3). Two sliding strips (4) are slidably installed inside the groove. An installation strip (5) is installed on the opposite side of the two sliding strips (4). A T-shaped groove is opened on the upper surface of the installation strip (5). A top rod (6) is slidably installed inside the T-shaped groove. A connecting spring (7) is installed on the opposite side of the top rod (6) and the T-shaped groove. The top of the top rod (6) is hemispherical. The sliding bar (4) is fixedly connected to the operating rod (8) at the position of the discharge port of the inclined plate (3), and an operating block is fixedly installed on the end face of the operating rod (8).
2. The screening device for plastic production according to claim 1, characterized in that: The inclined plate (3) is fixedly connected to a sleeve (11) on its side. The sleeve (11) is sleeved on the surface of the operating rod (8). Several elastic arc plates (12) are fixedly connected to the end face of the sleeve (11).
3. A screening device for plastic production according to claim 2, characterized in that: The inner ring surface of the elastic arc plate (12) overlaps with the surface of the operating rod (8).
4. A screening device for plastic production according to claim 3, characterized in that: The sleeve (11) is threaded with a hexagonal ring (13), and an arc ring (14) is fixedly connected to the inner ring surface of the hexagonal ring (13). The inner ring surface of the arc ring (14) overlaps with the outer ring surface of the elastic arc plate (12).
5. A screening device for plastic production according to claim 1, characterized in that: The surface of the sliding bar (4) is fixedly connected to a limiting block (10).
6. A screening device for plastic production according to claim 5, characterized in that: The inner wall of the groove is provided with a limiting groove, and the surface of the limiting block (10) overlaps with the inner wall of the limiting groove.
7. A screening device for plastic production according to claim 1, characterized in that: The screening box (2) has a second discharge port on its side, and a discharge plate (9) is fixedly connected to the inner wall of the second discharge port.