A graphite polystyrene particle screening device

Abstract

The utility model provides a kind of graphite polystyrene particle screening device, belong to graphite polystyrene particle processing technical field, including rack, screening subassembly, feeding subassembly and drive assembly.Sliding frame and screen are contained in screening subassembly, first sliding frame is arranged in rack along first direction sliding, screen is installed in first sliding frame inside, and storage space for placing material collecting box is equipped below screen;Feeding subassembly contains second sliding frame and feeding hopper, second sliding frame is arranged in rack sliding, feeding hopper is fixedly connected in second sliding frame and is located above screen, and second sliding frame sliding can drive feeding hopper to move feeding along screen extension direction;Drive assembly is arranged on rack, for driving first sliding frame reciprocating movement along first direction, to make screen realize material screening in turn.The utility model provides a kind of graphite polystyrene particle screening device, can effectively avoid that particle appears collision breakage in screening.

Description

Technical Field

[0001] This utility model belongs to the field of graphite polystyrene particle processing technology, and more specifically, it relates to a graphite polystyrene particle screening device. Background Technology

[0002] Graphite polystyrene granules are widely used in thermal insulation materials due to their excellent fire resistance, low thermal conductivity, and strong dimensional stability. After extrusion processing, graphite polystyrene granules need to be separated into different particle sizes using a screening device; granules that do not meet the size requirements need to be reprocessed.

[0003] The factory's current screening equipment is a general-purpose vibrating screen available on the market. In use, the material is first piled up on the screen through the feeding hopper, and then the vibrating motor is started to make the screen vibrate up and down to disperse and screen the piled material. However, during the screening process, on the one hand, the vibrating screen will impact the graphite polystyrene particles, and on the other hand, the vibrating graphite polystyrene particles will also collide violently with each other. This will cause some graphite polystyrene particles to break, which will have an adverse effect on the particle size requirements of the graphite polystyrene particles. Utility Model Content

[0004] The purpose of this invention is to provide a graphite polystyrene particle screening device, which aims to solve the problem that graphite polystyrene particles are easily broken during screening.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a graphite polystyrene particle screening device, comprising: a frame, a screening component, a feeding component, and a driving component; The screening component includes a first sliding frame and a screen. The first sliding frame is slidably disposed on the frame along a first direction. The screen is disposed inside the first sliding frame. Below the screen is a storage space for placing a collection box. The feeding assembly includes a second sliding frame and a feeding hopper. The second sliding frame is slidably disposed on the frame, and the feeding hopper is fixedly connected to the second sliding frame and located above the screen. The second sliding frame is slidably used to drive the feeding hopper to move along the extension direction of the screen to feed material. The drive assembly is mounted on the frame and is used to drive the first sliding frame to reciprocate along the first direction so that the screen screens the material.

[0006] In one possible implementation, the drive assembly includes a motor, a reducer, a drive wheel, and a drive rod. The motor and the reducer are both fixed to the frame. The input shaft of the reducer is driven by the motor. The output shaft of the reducer is fixed to the drive wheel. The drive wheel has a connecting block along its edge. One end of the drive rod is hinged to the connecting block, and the other end is hinged to the first sliding frame.

[0007] In one possible implementation, the frame includes two opposing and spaced-apart support portions, each of which has a first crossbeam fixed to its inner side along the first direction, and the first sliding frame is located between the two support portions and slidably mounted on the two first crossbeams.

[0008] In one possible implementation, a second crossbeam is fixed to the top of the support along the first direction, and the second sliding frame is slidably disposed on the two second crossbeams.

[0009] In one possible implementation, the first sliding frame includes an inner frame and an outer frame, the outer frame is slidably disposed on the frame, the screen is disposed inside the inner frame, the middle part of the inner frame is rotatably connected to the outer frame, and a limiting member is provided between the inner frame and the outer frame to restrict the rotation of the inner frame.

[0010] In one possible implementation, a guide rail is provided on the second crossbeam along its length, and a track wheel is provided at the bottom of the second sliding frame corresponding to the guide rail. The track wheel is rolled on the guide rail, and both ends of the guide rail are provided with blocks to limit the movement range of the second sliding frame.

[0011] In one possible implementation, the feeding hopper is fixed inside the second sliding frame and extends along a second direction perpendicular to the first direction. The feeding hopper includes a straight cylindrical section and a constricted section connected vertically. The cross-section of the constricted section decreases from top to bottom, and a feeding outlet is provided at the bottom of the constricted section.

[0012] In one possible implementation, silicone scrapers are provided on both sides of the feeding outlet.

[0013] In one possible implementation, the surface of the screen is coated with a smooth coating.

[0014] In one possible implementation, grip handles are provided on both sides of the second sliding frame.

[0015] The beneficial effects of the graphite polystyrene particle screening device provided by this utility model are as follows: Compared with the prior art, the graphite polystyrene particle screening device of this utility model, by setting a driving component to drive the first sliding frame to drive the screen to slide smoothly along the path without violent up and down vibration, only generates a gentle contact force between the screen and the particles, completely eliminating "screen impact and breakage"; at the same time, the second sliding frame drives the feeding hopper to move and feed, which can make the particles evenly spread on the screen surface without dense accumulation, and there is no space for squeezing and collision between particles. During the sliding process, the relative movement of particles is gentle, further avoiding "particle collision and breakage", and ultimately significantly reducing the breakage rate of graphite polystyrene particles and ensuring that the particle size meets the processing requirements. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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 these drawings without creative effort.

[0017] Figure 1 A schematic diagram of the main structure of a graphite polystyrene particle screening device provided in an embodiment of this utility model; Figure 2 A top view of a graphite polystyrene particle screening device provided in this embodiment of the present invention; Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle; Figure 4 for Figure 3 A magnified structural diagram at point M in the diagram; Figure 5 This is a cross-sectional view of the inner frame in an inclined state, as provided in an embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 1. Frame; 101. Support column; 102. First crossbeam; 103. Second crossbeam; 104. Reinforcing rib; 105. First connecting beam; 106. Second connecting beam; 107. Limiting wheel; 108. Guide rail; 109. Stop block; 11. Extension frame; 111. First platform; 112. Second platform; 2. First sliding frame; 21. Outer frame; 211. Traveling wheel; 212. Strip block; 213. Slot; 22. Inner frame; 221. Short shaft; 3. Screen; 4. Second sliding frame; 41. Track wheel; 42. Handle; 5. Feed hopper; 51. Straight section; 52. Necked section; 53. Feed outlet; 6. Silicone scraper; 7. Drive assembly; 71. Motor; 72. Reducer; 73. Drive wheel; 74. Drive rod; 75. Connecting shaft; 76. Connecting block. Detailed Implementation

[0019] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0021] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 limitations on this utility model.

[0022] 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.

[0023] Please see Figures 1 to 4The present invention provides a graphite polystyrene particle screening device. The graphite polystyrene particle screening device includes a frame 1, a screening assembly, a feeding assembly, and a drive assembly 7.

[0024] The screening component includes a first sliding frame 2 and a screen 3. The first sliding frame 2 is slidably mounted on the frame 1 along a first direction, and the screen 3 is located inside the first sliding frame 2 and slides synchronously with the frame. The storage space reserved below the screen 3 is used to place a collection box to receive qualified particles. This configuration of the screening component fundamentally eliminates the power source of "screen 3 impacting particles," achieving screening through the inertial force generated by sliding, rather than relying on violent vibration.

[0025] The feeding assembly includes a second sliding frame 4 and a feeding hopper 5. The second sliding frame 4 is also slidably mounted on the frame 1, and the feeding hopper 5 is fixed to the frame and suspended above the screen 3. The second sliding frame 4 can drive the feeding hopper 5 to move along the extension direction of the screen 3 (such as the length or width direction of the screen 3), so that the material changes from "concentrated accumulation" to "uniform dispersion", creating conditions to reduce particle collision.

[0026] The drive assembly 7 is mounted on the frame 1, providing stable power to the first sliding frame 2, driving the frame to reciprocate along the first direction, and driving the screen 3 to move synchronously to screen materials.

[0027] When using this device, first place the collection box into the storage space below the screen 3, adjust the position of the collection box to ensure that its opening completely covers the material drop area below the screen 3 to prevent qualified particles from spilling out; slowly pour the graphite polystyrene particles to be screened into the moving feeding hopper 5, and manually push the second sliding frame 4 to drive the feeding hopper 5 to move along the extension direction of the screen 3 at a preset speed, so that the particles to be screened are evenly distributed on the surface of the screen 3 after passing through the outlet of the feeding hopper 5. Then, activate the drive component 7 to make the first sliding frame... 2. Drive the screen 3 to slide smoothly back and forth along the first direction; during the sliding process of the screen 3, the particles will generate a gentle relative motion on the surface of the screen 3 due to inertial force. Particles that meet the particle size requirements will gradually fall into the collection box through the mesh of the screen 3, while unqualified particles will remain on the surface of the screen 3; after a batch of materials is fed and screening continues for 1-2 minutes (to ensure that qualified particles fall in fully), turn off the drive component 7; use scrapers or other tools to collect the unqualified particles remaining on the surface of the screen 3 for subsequent reprocessing; remove the collection box to complete the transfer of qualified particles.

[0028] This utility model provides a graphite polystyrene particle screening device. Compared with the prior art, by setting a driving component 7 to drive the first sliding frame 2 to drive the screen 3 to slide smoothly along the path without violent up and down vibration, only a gentle contact force is generated between the screen 3 and the particles, completely eliminating "screen 3 impact and breakage". At the same time, the second sliding frame 4 drives the feeding hopper 5 to move and feed the material, which can make the particles evenly spread on the surface of the screen 3 without dense accumulation. There is no space for squeezing and collision between particles. The relative movement of particles during the sliding process is gentle, further avoiding "particle collision and breakage", ultimately significantly reducing the breakage rate of graphite polystyrene particles and ensuring that the particle size meets the processing requirements.

[0029] In some embodiments, please refer to Figures 1 to 3 The frame 1 mentioned above includes two opposing and spaced-apart support parts. Each support part has a first crossbeam 102 fixedly connected to its inner side along a first direction. The first sliding frame 2 is located between the two support parts and is slidably mounted on the two first crossbeams 102. The top of the support part is fixedly connected to a second crossbeam 103 along the first direction. The second sliding frame 4 is slidably mounted on the two second crossbeams 103.

[0030] In specific applications, the aforementioned support consists of multiple mutually spaced support columns 101. The multiple support columns 101 are spaced apart along a first direction, and adjacent support columns 101 are connected by a first connecting beam 105. The aforementioned first crossbeam 102 is fixed to the inner side of the upper end of the support column 101 by welding or bolting, and the aforementioned second crossbeam 103 is fixed to the top of the support column 101 by welding or bolting. It should be noted that in this embodiment, each first crossbeam 102 and second crossbeam 103 is simultaneously fixedly connected to multiple support columns 101 on the same side. Moreover, in order to improve the connection strength between the first crossbeam 102 and the support column 101, a reinforcing rib plate 104 is welded between the lower end of the first crossbeam 102 and each support column 101, and the two ends of the two first crossbeams 102 are connected by a second connecting beam 106, so that the two support parts are connected as one unit.

[0031] In this embodiment, please refer to Figures 1 to 3The first sliding frame 2 is horizontally mounted on two first crossbeams 102. The length direction of the first sliding frame 2 is defined as the first direction, and the width direction as the second direction. The first sliding frame 2 specifically includes an inner frame 22 and an outer frame 21. Each side of the outer frame 21 has a traveling wheel 211 mounted on its bottom. In this embodiment, two traveling wheels 211 are located on the same side, supporting the outer frame 21 above the two first crossbeams 102. The traveling wheels 211 allow the outer frame 21 to move on the first crossbeams 102. To improve the stability of the outer frame 21 during movement, limiting wheels 107 are provided on the inner side of the second crossbeams 103 relative to the edge of the outer frame 21. Two limiting wheels 107 are present on each second crossbeam 103. During application, the four limiting wheels 107 on both sides abut against the edge of the outer frame 21, restricting the outer frame 21 from moving in its width direction and improving the stability of the edge movement.

[0032] In this embodiment, please refer to Figure 2 , Figure 3 and Figure 5 The screen 3 is bolted or welded into the inner frame 22. Short shafts 221 are provided in the middle of the two sidewalls of the inner frame 22 in the width direction. A slot 213 is provided on the inner sidewall of the outer frame 21 corresponding to the short shafts 221. The short shafts 221 are inserted into the slots 213. With the help of these short shafts 221, the inner frame 22 overlaps with the outer frame 21 and can rotate relative to the outer frame 21 in the vertical plane. However, to prevent the inner frame 22 from rotating during operation, a limiting component is provided between the inner frame 22 and the outer frame 21 to restrict its rotation. Specifically, the limiting component is a strip block 212 provided on both sidewalls of the outer frame 21 in the length direction. One end of the strip block 212 has a through hole through which a through hole is inserted. A bolt is provided, and a threaded hole is provided on the outer frame 21 corresponding to the strip block 212. In use, the strip block 212 is set along the length direction of the outer frame 21, with one end of the strip block 212 extending into the outer frame 21 and blocking the upper part of the inner frame 22. The strip block 212 is fixed to the outer frame 21 by the bolt. In this way, the two strip blocks 212 can restrict the two ends of the inner frame 22 in the length direction, preventing the inner frame 22 from rotating. After screening is completed, the bolt can be loosened so that the strip block 212 is arranged along the width direction of the outer frame 21, so that it can avoid the inner frame 22, and the inner frame 22 can resume its rotation function. By rotating the inner frame 22, it can be tilted, and the unqualified particles remaining on the screen 3 can be collected quickly.

[0033] In some embodiments, please refer to Figure 2 and Figure 3An extension frame 11 is connected to one side of the frame 1 along the first direction. The extension frame 11 includes a first platform 111 and a second platform 112 arranged vertically. The aforementioned drive assembly 7 includes a motor 71, a reducer 72, a drive wheel 73, and a drive rod 74. The motor 71 and reducer 72 are both fixed to the second platform 112. The drive wheel 73 is horizontally positioned on the first platform 111. The input shaft of the reducer 72 is connected to the motor 71. The output shaft of the reducer 72 is connected to the drive wheel 73 via a connecting shaft 75, which extends upward through the first platform 111 and is fixed to the middle of the drive wheel 73. To maintain the connection... The rotation of shaft 75 is stable. A bearing is installed between the connecting shaft 75 and the first platform 111. In this embodiment, a connecting block 76 is provided on the edge of the drive wheel 73. One end of the drive rod 74 is hinged to the connecting block 76, and the other end is hinged to the outer frame 21. When the connecting block 76 moves in a circular motion with the drive wheel 73, the drive rod 74 will change angle with the displacement of the connecting block 76, and push or pull the first sliding frame 2 to move along the first direction. The drive wheel 73 continues to rotate, and the first sliding frame 2 realizes "reciprocating sliding" under the drive of the drive rod 74, thereby driving the screen 3 to move synchronously and complete the screening.

[0034] In some embodiments, please refer to Figures 1 to 3 A guide rail 108 is provided on the upper end surface of the second crossbeam 103 along its length. In this embodiment, the guide rail 108 is a V-shaped angle steel rail. At the bottom of the second sliding frame 4, a track wheel 41 is provided corresponding to the V-shaped angle steel rail. There are four track wheels 41, and every two track wheels 41 correspond to one guide rail 108. With the rolling cooperation between the track wheels 41 and the guide rail 108, the second sliding frame 4 is moved and set on the second crossbeam 103. In application, in order to avoid restricting the movement range of the second sliding frame 4, a stop block 109 is provided at both ends of each guide rail 108.

[0035] In this embodiment, please refer to Figures 1 to 4 The feeding hopper 5 is fixed inside the second sliding frame 4 and extends along the second direction (the width direction of the outer frame 21). In this embodiment, the length of the feeding hopper 5 in the second direction accounts for 4 / 5 of the width of the screen 3, so that the feeding hopper 5 can cover most of the area in the width direction of the screen 3. In this embodiment, the feeding hopper 5 includes a straight cylindrical section 51 and a necked section 52 connected vertically. The cross-section of the necked section 52 decreases from top to bottom. A feeding outlet 53 is provided at the bottom of the necked section 52. The feeding outlet 53 is a rectangular elongated opening. Longitudinally arranged silicone scrapers 6 are connected on both sides of the feeding outlet 53. The length of the silicone cover plate is the same as the length of the feeding outlet 53. During the feeding process, the silicone scrapers 6 can spread the particles to be screened on the screen 3 evenly.

[0036] In this embodiment, in order to facilitate personnel to push the second sliding frame 4, grip handles 42 are provided on both sides of the second sliding frame 4.

[0037] In some embodiments, a smooth coating is sprayed onto the surface of the screen 3. In this embodiment, the smooth coating refers to a functional coating material with low friction coefficient, high surface smoothness, and wear resistance. Common materials include polytetrafluoroethylene, modified epoxy resin, and ultra-high molecular weight polyethylene coating. In this embodiment, the smooth coating does not only cover the upper surface of the screen 3, but also targets key areas of particle contact, including the upper surface of the screen 3, the inner edges of the mesh openings, and part of the lower surface. This is because graphite polystyrene particles not only slide along the upper surface of the screen 3 during screening, but also come into contact with the edges of the mesh openings during screening (especially particles with a particle size close to the mesh opening diameter). If only the upper surface is coated, the rough surface of the mesh opening edges may still scratch the particles. By setting a smooth coating, the particles flow smoothly, reducing local accumulation and further reducing the probability of collision and breakage between particles, ultimately ensuring that the particle size of the screened particles meets the requirements.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A graphite polystyrene particle screening device, characterized in that, It includes a frame (1), a screening assembly, a feeding assembly, and a drive assembly (7); The screening component includes a first sliding frame (2) and a screen (3). The first sliding frame (2) is slidably disposed on the frame (1) along a first direction. The screen (3) is disposed inside the first sliding frame (2). The screen (3) has a storage space below it for placing a collection box. The feeding assembly includes a second sliding frame (4) and a feeding hopper (5). The second sliding frame (4) is slidably disposed on the frame (1). The feeding hopper (5) is fixed to the second sliding frame (4) and located above the screen (3). The second sliding frame (4) is slidably used to drive the feeding hopper (5) to move along the extension direction of the screen (3) to feed materials. The drive assembly (7) is mounted on the frame (1) and is used to drive the first sliding frame (2) to reciprocate along the first direction so that the screen (3) screens the material.

2. The graphite polystyrene particle screening device as described in claim 1, characterized in that, The drive assembly (7) includes a motor (71), a reducer (72), a drive wheel (73), and a drive rod (74). The motor (71) and the reducer (72) are both fixed to the frame (1). The input shaft of the reducer (72) is connected to the motor (71) in a transmission manner. The output shaft of the reducer (72) is fixed to the drive wheel (73). The edge of the drive wheel (73) is provided with a connecting block (76). One end of the drive rod (74) is hinged to the connecting block (76), and the other end is hinged to the first sliding frame (2).

3. The graphite polystyrene particle screening device as described in claim 1, characterized in that, The frame (1) includes two opposing and spaced-apart support parts, and a first crossbeam (102) is fixedly connected to the inner side of each support part along the first direction. The first sliding frame (2) is located between the two support parts and is slidably disposed on the two first crossbeams (102).

4. The graphite polystyrene particle screening device as described in claim 3, characterized in that, The top of the support is fixedly connected to a second crossbeam (103) along the first direction, and the second sliding frame (4) is slidably disposed on the two second crossbeams (103).

5. The graphite polystyrene particle screening device as described in claim 1, characterized in that, The first sliding frame (2) includes an inner frame (22) and an outer frame (21). The outer frame (21) is slidably disposed on the frame (1). The screen (3) is disposed inside the inner frame (22). The middle part of the inner frame (22) is rotatably connected to the outer frame (21). A limiting member restricting the rotation of the inner frame (22) is provided between the inner frame (22) and the outer frame (21).

6. The graphite polystyrene particle screening device as described in claim 4, characterized in that, The second crossbeam (103) is provided with a guide rail (108) along its length direction. The bottom of the second sliding frame (4) is provided with a track wheel (41) corresponding to the guide rail (108). The track wheel (41) is rolled on the guide rail (108). Both ends of the guide rail (108) are provided with a stop block (109) to limit the movement range of the second sliding frame (4).

7. The graphite polystyrene particle screening device as described in claim 4, characterized in that, The feeding hopper (5) is fixed inside the second sliding frame (4) and extends along the second direction, which is perpendicular to the first direction. The feeding hopper (5) includes a straight cylindrical section (51) and a constricted section (52) connected vertically. The cross-section of the constricted section (52) decreases from top to bottom. The bottom of the constricted section (52) is provided with a feeding outlet (53).

8. The graphite polystyrene particle screening device as described in claim 7, characterized in that, Both sides of the feeding outlet (53) are equipped with silicone scrapers (6).

9. The graphite polystyrene particle screening device as described in claim 1, characterized in that, The surface of the screen (3) is coated with a smooth coating.

10. The graphite polystyrene particle screening device as described in claim 1, characterized in that, The second sliding frame (4) is provided with handles (42) on both sides.

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