A screening device for processing low-smoke, halogen-free materials

Abstract

This utility model belongs to the technical field of low-smoke halogen-free material processing equipment, specifically relating to a screening device for low-smoke halogen-free material processing. It includes a support frame, a base fixedly connected to the top of the support frame, a support plate fixedly connected to the top of the base, and a shaking component on the top of the support plate for shaking during screening. The shaking component includes a motor and an eccentric column. The motor is mounted on the top of the support plate, and its output shaft is connected to a rotating shaft. A disc is fixedly connected to the end of the rotating shaft away from the motor, and the eccentric column is fixedly connected to the outer wall of the disc. This screening device for low-smoke halogen-free material processing uses a dual-axis motor-driven eccentric linkage mechanism to cause the screening shell to reciprocate horizontally. Combined with an inclined screen plate, this results in longer contact time between particles and the screen, more complex collision angles, and effectively reduces particle agglomeration and screen clogging.

Description

Technical Field

[0001] This utility model relates to the technical field of low-smoke halogen-free material processing equipment, specifically a screening device for low-smoke halogen-free material processing. Background Technology

[0002] Low-smoke halogen-free polymers, as environmentally friendly polymer materials, are widely used in fields such as wires and cables and rail transportation. During their processing, the presence of impurities can severely affect product performance, necessitating the screening of low-smoke halogen-free polymers to achieve precise particle size classification.

[0003] Currently, in existing technologies, some screening equipment adopts a single-axis vibration or vertical vibration structure. Due to the high surface friction coefficient and easy moisture absorption and agglomeration of low-smoke halogen-free particles, they are prone to forming clumps in the particle size range, which leads to a decrease in the effective pass rate of the screen and requires frequent shutdowns for cleaning. Therefore, a screening device for processing low-smoke halogen-free materials is proposed. Utility Model Content

[0004] The main objective of this invention is to provide a screening device for processing low-smoke, halogen-free materials, which can solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention proposes a screening device for processing low-smoke, halogen-free materials, comprising a support frame, a base fixedly connected to the top of the support frame, a support plate fixedly connected to the top of the base, and a shaking component for shaking during processing and screening, the shaking component comprising:

[0006] An electric motor is mounted on the top of a support plate. The output shaft of the motor is connected to a rotating shaft, and a disc is fixedly connected to the end of the rotating shaft away from the motor.

[0007] An eccentric column is fixedly connected to the outer wall of the disk, and a connecting rod is hinged to the outer wall of the eccentric column;

[0008] A fixed rod is hinged to the end of the connecting rod away from the eccentric column. A screening housing is fixedly connected to the outer wall of the fixed rod. The screening housing is equipped with a screening component for screening low-smoke halogen-free materials.

[0009] Preferably, the support plate is hinged to the two sides of the screening housing with support rods to provide support for the screening housing.

[0010] Preferably, the support plate is fixedly connected to both sides of the screening shell with fixing blocks, and the fixing blocks are fixedly connected with folding plates to further improve the support effect.

[0011] Preferably, the screening component includes a first sieve plate, a second sieve plate, and a horizontal plate. The first sieve plate, the second sieve plate, and the horizontal plate are fixedly connected to the inner wall of the screening housing. A first discharge port is provided on one side of the screening housing, and a second discharge port and a third discharge port are provided at the bottom of the screening housing. Through the multi-stage decreasing aperture design, impurities are graded and removed, thereby improving the screening accuracy.

[0012] Preferably, the top of the screening housing is bolted to a cover plate, and a feed hopper is fixedly connected to the top of the cover plate.

[0013] Preferably, a dispersing plate is fixedly connected to the top of the screen plate to ensure that the material entering from the feed hopper is evenly dispersed and to avoid local accumulation.

[0014] Preferably, the outer wall of the screening housing is provided with a groove, and a scraper is slidably connected to the inner wall of the groove, so as to clean the screen plate by periodically pushing the scraper.

[0015] This invention provides a screening device for processing low-smoke, halogen-free materials. It has the following beneficial effects:

[0016] (1) The screening device for low-smoke halogen-free processing uses a dual-shaft motor-driven eccentric linkage mechanism to make the screening shell swing horizontally back and forth. Combined with the inclined screen plate, it achieves a longer contact time between particles and screen and a more complex collision angle, effectively reducing particle agglomeration and screen clogging.

[0017] (2) The screening device for low-smoke halogen-free material processing adopts a three-stage decreasing aperture structure of screen plate one, screen plate two, and horizontal plate, which can sequentially separate large impurities, medium particles, and qualified materials, realize the graded and directional discharge of impurities, improve screening efficiency, and the dual feed inlet and V-shaped dispersing plate work together to evenly distribute the material to both sides of the screen plate to avoid local accumulation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall three-dimensional structure of the present invention. Figure 2 ;

[0021] Figure 3This is a partial cross-sectional view of the present invention. Figure 1 ;

[0022] Figure 4 This is a partial cross-sectional view of the present invention. Figure 2 .

[0023] Explanation of icon numbers:

[0024] 1. Support frame; 2. Base; 3. Support plate; 4. Vibration component; 41. Motor; 42. Rotating shaft; 43. Disc; 44. Eccentric column; 45. Connecting rod; 46. Fixing rod; 47. Screening shell; 5. Support rod; 6. Fixing block; 7. Folding plate; 8. Screening component; 81. Screen plate one; 82. Screen plate two; 83. Horizontal plate; 84. Discharge port one; 85. Discharge port two; 86. Discharge port three; 9. Cover plate; 10. Feed hopper; 11. Dispersion plate; 12. Slide chute; 13. Scraper.

[0025] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4 This utility model proposes a screening device for low-smoke, halogen-free material processing, including a support frame 1, a base 2 fixedly connected to the top of the support frame 1, a support plate 3 fixedly connected to the top of the base 2, the support plate 3 being U-shaped, and an inclined plate on one side of the base 2, through which a collection trough can be pushed into the U-shaped support plate 3 for material collection, and a shaking component 4 for shaking during processing and screening is provided on the top of the support plate 3.

[0028] In an embodiment of this utility model, in order to prevent low-smoke, halogen-free materials from clogging the screen plate, the shaking component 4 specifically includes a motor 41, an eccentric column 44, and a fixing rod 46. The motor 41 is a dual-shaft drive and is mounted on the top of the support plate 3. The output shaft of the motor 41 is connected to a rotating shaft 42. A disc 43 is fixedly connected to the end of the rotating shaft 42 away from the motor 41. The eccentric column 44 is fixedly connected to the outer wall of the disc 43. A connecting rod 45 is hinged to the outer wall of the eccentric column 44. The fixing rod 46 is hinged to the end of the connecting rod 45 away from the eccentric column 44. A screening housing 47 is fixedly connected to the outer wall of the fixing rod 46. A screening component 8 for screening low-smoke, halogen-free materials is provided inside the screening housing 47.

[0029] Furthermore, support rods 5 are hinged to both sides of the support plate 3 and the screening housing 47 to provide support for the screening housing 47. Fixing blocks 6 are fixedly connected to both sides of the support plate 3 and the screening housing 47. Folding plates 7 are fixedly connected between the fixing blocks 6. The folding plates 7 are fixed to the two fixing blocks 6 by bolts to further improve the support effect. A cover plate 9 is bolted to the top of the screening housing 47. A feed hopper 10 is fixedly connected to the top of the cover plate 9. There are two feed hoppers 10. The two feed hoppers 10 can increase the feeding speed.

[0030] Furthermore, the screening component 8 includes a first screen plate 81, a second screen plate 82, and a horizontal plate 83. The first screen plate 81, the second screen plate 82, and the horizontal plate 83 are fixedly connected to the inner wall of the screening housing 47. The first screen plate 81, the second screen plate 82, and the horizontal plate 83 are all inclined to facilitate material transport. A discharge port 84 is provided on one side of the screening housing 47, and a collection trough is provided below the discharge port 84. Discharge ports 85 and 86 are provided at the bottom of the screening housing 47. Through a multi-stage decreasing aperture design, impurities are graded and removed, improving screening accuracy. A dispersing plate 11 is fixedly connected to the top of the first screen plate 81. The dispersing plate 11 is V-shaped and there are two of them. The two dispersing plates 11 are located below the two feed hoppers 10 respectively, so that the material entering from the feed hopper 10 is evenly dispersed and local accumulation is avoided. The outer wall of the screening shell 47 is provided with a sliding groove 12. The inner wall of the sliding groove 12 is slidably connected with a scraper 13. There are two sliding grooves 12 and two scrapers 13, which are located between the first screen plate 81 and the second screen plate 82, and between the second screen plate 82 and the horizontal plate 83 respectively. The screen plate is cleaned by periodically pushing the scraper 13.

[0031] It should be noted that the above electrical components are all existing technology products. Those skilled in the art should select, install and complete the circuit debugging work according to the needs of use to ensure that each electrical appliance can work normally. For example, the motor 41 is connected to the mains power. The components are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known by those skilled in the art through technical manuals or conventional experimental methods. No specific restrictions are made here.

[0032] In this invention, during use, low-smoke, halogen-free granules enter the screening housing 47 through the top feed hopper 10 of the cover plate 9. As the material falls, the dispersing plate 11 evenly disperses the material to both sides of the screen plate, ensuring uniform material distribution on the surface of the screen plate 81. The motor 41 is started, and the output shaft of the motor 41 drives the rotating shaft 42 to rotate. The rotating shaft 42 drives the disc 43 to rotate, and the eccentric column 44 rotates with the disc 43. The circular motion is converted into the reciprocating motion of the fixed rod 46 through the connecting rod 45, thereby driving the screening housing 47 to swing horizontally, preventing material from slipping during transmission. When the screen plate is blocked, the material is conveyed on the screen plate. Larger particles of impurities are intercepted and slide along the inclined surface of screen plate 1 81 to discharge port 1 84 for collection. The material that has passed the first screening falls into screen plate 2 82, where medium-sized particles of impurities are intercepted and enter discharge port 2 85 through the bottom inclined guide channel for collection. Qualified material falls onto the horizontal plate 83 and enters discharge port 3 86 through the bottom inclined guide channel for collection, thus achieving precise particle screening. The scraper 13 is periodically slid back and forth along the slide groove 12 to keep it close to the surface of the screen plate, removing the adhering fine particles and preventing screen hole blockage.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A screening device for processing low-smoke, halogen-free materials, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to a base (2) at its top, and a support plate (3) is fixedly connected to the top of the base (2). The top of the support plate (3) is provided with a shaking component (4) for shaking during processing and screening. The shaking component (4) includes: The motor (41) is mounted on the top of the support plate (3). The output shaft of the motor (41) is connected to a rotating shaft (42). A disc (43) is fixedly connected to one end of the rotating shaft (42) away from the motor (41). An eccentric column (44) is fixedly connected to the outer wall of the disk (43), and a connecting rod (45) is hinged to the outer wall of the eccentric column (44). A fixing rod (46) is hinged to the end of the connecting rod (45) away from the eccentric column (44). A screening housing (47) is fixedly connected to the outer wall of the fixing rod (46). A screening assembly (8) for screening low-smoke halogen-free materials is provided inside the screening housing (47).

2. The screening device for processing low-smoke, halogen-free materials according to claim 1, characterized in that: The support plate (3) is hinged to the two sides of the screening shell (47) with support rods (5).

3. The screening device for processing low-smoke, halogen-free materials according to claim 1, characterized in that: The support plate (3) is fixedly connected to both sides of the screening shell (47) by fixing blocks (6), and the fixing blocks (6) are fixedly connected to each other by folding plates (7).

4. The screening device for processing low-smoke, halogen-free materials according to claim 1, characterized in that: The screening component (8) includes a first screen plate (81), a second screen plate (82), and a horizontal plate (83). The first screen plate (81), the second screen plate (82), and the horizontal plate (83) are fixedly connected to the inner wall of the screening housing (47). A discharge port (84) is provided on one side of the screening housing (47), and a second discharge port (85) and a third discharge port (86) are provided at the bottom of the screening housing (47).

5. A screening device for processing low-smoke, halogen-free materials according to claim 1, characterized in that: The top of the screening housing (47) is bolted to a cover plate (9), and the top of the cover plate (9) is fixedly connected to a feed hopper (10).

6. A screening device for processing low-smoke, halogen-free materials according to claim 4, characterized in that: A dispersing plate (11) is fixedly connected to the top of the sieve plate (81).

7. A screening device for processing low-smoke, halogen-free materials according to claim 1, characterized in that: The outer wall of the screening housing (47) is provided with a groove (12), and a scraper (13) is slidably connected to the inner wall of the groove (12).

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