Vibration sieve mechanism for plastic material particles of automobile protection plate

Abstract

The invention relates to the technical field of screening equipment, in particular to an automobile protection plate plastic material particle vibration screening mechanism which comprises an outer box body located on the outer side and a screening box located on the inner side, the screening box vibrates in the outer box body and screens raw materials, the outer box body collects the screened raw materials, a plurality of vibration structures are arranged on the inner wall of the outer box body, and the vibration structures are arranged on the outer box body. The oscillation structure is used for driving the screen box to vibrate; through the design of multi-direction vibration, namely composite vibration in the horizontal direction and the vertical direction, raw materials can be fully mixed in the screen box and rapidly pass through screen holes, the phenomenon of raw material accumulation caused by traditional one-way vibration is avoided, the screening speed is greatly increased, the screening efficiency is greatly improved, the mode that the screen holes are formed in the multiple faces of the screen box is utilized, and the screening efficiency is improved. According to the multi-directional screening device, the raw materials can smoothly penetrate through the screening holes from the upper direction, the lower direction, the left direction and the right direction of the screening box, so that the multi-directional screening work of the raw materials is realized spatially, and the screening efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of screening equipment, in particular to a vibrating screening mechanism for plastic material particles of automobile guard plates. Background Art

[0002] In the modern automobile manufacturing industry, automobile guard plates are important components that protect the bottom of the vehicle from external factors such as stones, dust, and moisture. The selection of materials and processing technology have a direct impact on the quality of the finished product. With the advancement of technology, more and more high-performance plastics are used in the production of automobile guard plates to meet the requirements of lightweight, corrosion resistance, impact resistance, etc. However, in the production process of these high-performance plastics, the quality control of raw material particles has become one of the key links to ensure the quality of the final product.

[0003] In the preparation process of raw material particles, there may be different sizes and shapes, which not only affects the consistency and efficiency of subsequent processing, but also may lead to a decline in the quality of finished products. Therefore, the screening of raw material particles is one of the important links in product processing. The traditional screening method is to use the vibration of the sieve plate to make the raw materials with composite requirements on the sieve plate pass through the sieve holes at the bottom of the sieve plate, while the large particles of raw materials are intercepted on the sieve plate to achieve screening. However, since the raw materials can only be screened and discharged from the bottom, this screening method requires screening layer by layer, and the screening speed is slow and the work efficiency is low. In addition, the sieve plate can only perform unidirectional reciprocating vibration, and the vibration mode is single, and it is impossible to quickly exchange the position of the upper unscreened raw materials and the lower intercepted raw materials. The raw materials intercepted by the sieve plate will hinder the unscreened raw materials and affect the screening efficiency. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a vibrating screening mechanism for plastic material particles of automobile guard plates, and the specific technical solution adopted is: According to a first aspect of the present invention, a vibrating screening mechanism for plastic material particles of automobile fenders is provided, comprising an outer box located on the outside and a screen box located on the inside, the screen box vibrates in the outer box and screens the raw materials, the outer box collects the screened raw materials, and a plurality of groups of vibration structures are arranged on the inner wall of the outer box, the vibration structures are used to drive the screen box to vibrate; The oscillating structure includes a turntable, an eccentric column and a connecting plate, wherein the axis of the turntable is inclined in the vertical direction, the eccentric column is eccentrically mounted on the bottom surface of the turntable, and the eccentric column is rotatably connected to the connecting plate, and the connecting plate is horizontally fixed on the outer wall of the screen box; The outer wall of the screen box is densely covered with screen holes, a feed hose is connected to one end of the screen box along the length direction of the screen box, and a discharge hose is connected to the other end of the screen box. The vertical plane where the turntable axis is located is perpendicular to the length direction of the screen box.

[0005] Furthermore, a plurality of ribs are arranged at the bottom of the inner wall of the screen box, the length direction of the ribs is perpendicular to the length direction of the screen box, the plurality of ribs are arranged along the length direction of the screen box, the surface of the ribs facing the feed hose is set as an inclined surface, and the surface of the ribs facing the discharge hose is set as a vertical surface.

[0006] Furthermore, the top surface of the screen box and the bottom surface of the outer box body are both configured as cambered surfaces, the middle area of ​​the bottom surface of the outer box body is configured as an inclined area, and the lowest point of the inclined area is connected to a discharge channel.

[0007] Furthermore, the oscillation structure includes an arc-shaped groove plate, a sliding rod and a first support ring. The arc-shaped groove plate is embedded in the side wall of the outer box body. The center of the arc-shaped groove plate coincides with the center point of the turntable. The sliding rod passes through the arc-shaped groove plate, and the sliding rod slides along the track of the arc-shaped groove plate. The first support ring is sleeved on the outer wall of the turntable, and the turntable rotates on the first support ring. The first support ring is fixedly connected to the sliding rod.

[0008] Furthermore, the oscillation structure further comprises a vertical main shaft, which is inserted into the outer box body and rotates on the outer box body, a first spherical disk is arranged at the bottom of the main shaft, and a second spherical disk is arranged on the end surface of the turntable, the center of the first spherical disk and the center of the second spherical disk both coincide with the center point of the turntable, and the first spherical disk and the second spherical disk are in friction contact; The first spherical disc and the second spherical disc are connected through friction transmission, and the second spherical disc and the eccentric column are located on both sides of the rotating disc.

[0009] Furthermore, a fixed ring is rotatably sleeved on the main shaft, and fixed frames are fixed on the front and rear outer walls of the fixed ring. Fixed columns are inserted and fixed on the fixed frames. The axis of the fixed columns coincides with the center point of the turntable, and the fixed columns are rotatably connected to the outer wall of the first support ring.

[0010] Furthermore, an eccentric disk is eccentrically arranged on the outer wall of the main shaft outside the outer box body, a second support ring is rotatably sleeved on the outer wall of the eccentric disk, a push-pull plate is fixed on the outer wall of the second support ring, and the push-pull plate is rotatably connected to the sliding rod outside the outer box body through a connecting rod; Wherein, a moving sleeve is arranged on the sliding sleeve of the push-pull plate, a guide frame is arranged at the bottom of the moving sleeve, and the moving sleeve slides on the guide frame, and the guide frame is fixed on the outer box body.

[0011] Furthermore, a transmission wheel is arranged at the bottom of the main shaft, and a plurality of transmission wheels are connected by a transmission belt. A fixing plate is fixed on the top of the outer box body, a main motor is arranged on the fixing plate, and an output end of the main motor is connected to a transmission wheel.

[0012] The beneficial effects of the present invention are: Through the design of multi-directional vibration, that is, composite vibration in horizontal and vertical directions, the raw materials can be fully mixed in the screen box and quickly pass through the screen holes, avoiding the raw material accumulation caused by traditional unidirectional vibration, thereby greatly improving the screening speed and efficiency, and by opening screen holes on multiple surfaces of the screen box, the raw materials can pass through the screen holes smoothly from the top, bottom, left and right directions of the screen box, thereby realizing multi-directional screening of the raw materials in space, greatly improving the screening efficiency; by making the raw materials move naturally along the length direction of the screen box in the screen box, the continuous supply and discharge of the raw materials are realized, avoiding the problem of long-term accumulation of raw materials in a certain area, and ensuring the continuity and stability of the screening process; by adopting the eccentric rotation mechanism of the turntable and the eccentric column, the multi-directional vibration mode of the screen box can be realized by relying only on the static rotation movement of the turntable, simplifying the structural mode and improving the screening diversity; in summary, the technical scheme not only effectively solves many problems existing in the traditional screening method, but also provides a new solution for the efficient and accurate screening of raw material particles of automobile guard plate plastic materials through technological innovation, which is of great significance to improving the production efficiency and product quality of the automobile parts manufacturing industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure of the Chinese and foreign boxes; Figure 3 yes Figure 2 A schematic diagram of the enlarged structure of the medium oscillation structure; Figure 4 yes Figure 3 Another perspective structural diagram of; Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle screen box; Figure 6 yes Figure 1 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0015] Reference numerals: 1. Outer box; 2. Screen box; 3. Oscillation structure; 4. Turntable; 5. Eccentric column; 6. Connecting plate; 7. Feed hose; 8. Discharge hose; 9. Ribs; 10. Discharge channel; 11. Arc groove plate; 12. Slide bar; 13. First support ring; 14. Main shaft; 15. First spherical disk; 16. Second spherical disk; 17. Fixed ring; 18. Fixed frame; 19. Fixed column; 20. Eccentric disk; 21. Second support ring; 22. Push-pull plate; 23. Connecting rod; 24. Guide frame; 25. Moving sleeve; 26. Transmission wheel; 27. Transmission belt; 28. Fixed plate; 29. ​​Main motor. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by “center”, “up”, “down”, “left”, “right”, “vertical”, “horizontal”, “inside” and “outside”, etc., are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. This embodiment is written in a progressive manner.

[0019] like Figures 1 to 6 As shown, a vibrating screening mechanism for plastic material particles of automobile guard plates of the present invention comprises an outer box body 1 located on the outside and a screen box 2 located on the inside, the screen box 2 vibrates in the outer box body 1 and screens the raw materials, the outer box body 1 collects the screened raw materials, and a plurality of groups of vibration structures 3 are arranged on the inner wall of the outer box body 1, and the vibration structures 3 are used to drive the screen box 2 to vibrate; The oscillating structure 3 includes a turntable 4, an eccentric column 5 and a connecting plate 6. The axis of the turntable 4 is inclined in the vertical direction. The eccentric column 5 is eccentrically installed on the bottom surface of the turntable 4. The eccentric column 5 is rotatably connected to the connecting plate 6. The connecting plate 6 is horizontally fixed to the outer wall of the screen box 2. Among them, the outer wall of the screen box 2 is densely covered with sieve holes, a feed hose 7 is connected to one end of the screen box 2 along the length direction of the screen box 2, and a discharge hose 8 is connected to the other end of the screen box 2. The vertical plane where the axis of the turntable 4 is located is perpendicular to the length direction of the screen box 2.

[0020] In detail, the screen box 2 is in the shape of an elongated strip, and the interior of the screen box 2 is a closed space. Screen holes are provided on the left and right sides and the upper and lower sides in the width direction of the screen box 2. The two ends of the screen box 2 in the length direction can be flat and used to connect the feed hose 7 and the discharge hose 8. In order to facilitate feeding, the feed hose 7 is tilted upward, and in order to facilitate discharging, the discharge hose 8 is installed at the bottom of the screen box 2. The raw material enters the screen box 2 through the feed hose 7. Since the screen box 2 is in a vibrating state, the raw material diffuses to the surroundings due to the vibration. Therefore, along the length direction of the screen box 2, The raw material will move from the feed hose 7 toward the discharge hose 8, so that the raw material can be transported horizontally in the screen box 2 without continuously accumulating near the feed hose 7. Therefore, the screen box 2 is a continuous supply and discharge screening method for the raw material, that is, the raw material can be continuously screened. The screen box 2 is installed on the inner wall of the outer box body 1 through multiple groups of oscillation structures 3, and the multiple groups of oscillation structures 3 can be evenly divided into two rows on the left and right to facilitate connection with the screen box 2. The outer box body 1 is used to collect the raw materials screened by the screen box 2. The turntable 4 is inclined and the eccentric column 5 is eccentrically installed on the end surface of the turntable 4. Therefore, when the turntable 4 rotates, the eccentric column 5 will perform a circular motion. In the horizontal direction, the eccentric column 5 performs a circular motion. In the vertical direction, the eccentric column 5 performs an up-and-down motion. In this way, the eccentric column 5 drives the screen box 2 to synchronously run the composite motion mode. The connecting plate 6 is used to connect the turntable 4 and the screen box 2. The vibration of the screen box 2 in the horizontal direction can make the raw material roll in the screen box 2 and pass through the sieve hole. The vibration of the screen box 2 in the vertical direction can make the bottom raw material and the upper raw material exchange positions, thereby avoiding the large particle raw material intercepted in the screen box 2 from blocking the small particle raw material to be screened, so as to facilitate the small particle raw material to quickly pass through the sieve hole and be discharged into the outer box body 1, thereby improving the raw material screening efficiency. In addition, the distribution of the sieve holes on the screen box 2 and the vertical movement of the raw material in the screen box 2 can make the raw material discharged from any direction on the screen box 2, thereby realizing multi-directional screening of the raw material in space, rather than the limitation that the screening work can only be performed at the bottom of the sieve plate in the traditional way, which greatly improves the screening efficiency.

[0021] It should be pointed out that, in order to facilitate material discharge, a groove may be provided at the tail of the screen box 2 during the actual processing of the screen box 2, so that the groove is connected to the material discharge hose 8, thereby facilitating material collection.

[0022] Through the design of multi-directional vibration, that is, the composite vibration in the horizontal and vertical directions, the raw materials can be fully mixed in the screen box 2 and quickly pass through the screen holes, avoiding the raw material accumulation caused by traditional unidirectional vibration, thereby greatly improving the screening speed and efficiency. In addition, by opening screen holes on multiple surfaces of the screen box 2, the raw materials can pass through the screen holes smoothly from the top, bottom, left and right directions of the screen box 2, thereby realizing multi-directional screening of the raw materials in space, greatly improving the screening efficiency; by making the raw materials move naturally in the screen box 2 along the length direction of the screen box 2, the continuous supply and discharge of the raw materials is realized, avoiding The problem of long-term accumulation of raw materials in a certain area is solved, and the continuity and stability of the screening process are ensured; by adopting the eccentric rotation mechanism of the turntable 4 and the eccentric column 5, the multi-directional vibration mode of the screen box 2 can be achieved by relying solely on the static rotation movement of the turntable 4, thereby simplifying the structural mode and improving the screening diversity; in summary, this technical solution not only effectively solves many problems existing in traditional screening methods, but also provides a new solution for the efficient and accurate screening of raw material particles of automobile guard plate plastic materials through technological innovation, which is of great significance to improving the production efficiency and product quality of the automobile parts manufacturing industry.

[0023] Furthermore, a plurality of ribs 9 are arranged at the bottom of the inner wall of the screen box 2, the length direction of the ribs 9 is perpendicular to the length direction of the screen box 2, and the plurality of ribs 9 are arranged along the length direction of the screen box 2. The surface of the ribs 9 facing the feed hose 7 is set as an inclined surface, and the surface of the ribs 9 facing the discharge hose 8 is set as a vertical surface.

[0024] In detail, by adopting the structural mode of the ribs 9, when the screen box 2 vibrates and screens the raw materials, the raw materials can move smoothly along the inclined surface of the ribs 9 toward the discharge hose 8, and the vertical surface of the ribs 9 can block the raw materials from moving toward the feed hose 7, thereby facilitating the smooth movement of the raw materials in the screen box 2 along the length direction of the screen box 2, realizing the automatic, continuous, and unidirectional movement of the raw materials during the screening process, and avoiding the accumulation of raw materials in the screen box 2.

[0025] Furthermore, the top surface of the screen box 2 and the bottom surface of the outer box body 1 are both configured as cambered surfaces, the middle area of ​​the bottom surface of the outer box body 1 is configured as an inclined area, and a discharge channel 10 is connected to the lowest point of the inclined area.

[0026] In detail, the curved surface on the upper surface of the screen box 2 can prevent the raw materials from accumulating on the upper surface of the screen box 2, making it convenient for the screened raw materials to quickly slide into the outer box body 1, and the curved surface on the bottom of the outer box body 1 can gather the raw materials toward the middle area of ​​the bottom surface of the outer box body 1, and the inclined setting of the middle area of ​​the bottom surface of the outer box body 1 can make the raw materials automatically roll toward the discharge channel 10 and be discharged through the discharge channel 10.

[0027] Furthermore, the oscillation structure 3 includes an arcuate groove plate 11, a slide rod 12 and a first support ring 13. The arcuate groove plate 11 is embedded in the side wall of the outer box body 1. The center of the arcuate groove plate 11 coincides with the center point of the turntable 4. The slide rod 12 passes through the arcuate groove plate 11, and the slide rod 12 slides along the track of the arcuate groove plate 11. The first support ring 13 is sleeved on the outer wall of the turntable 4, and the turntable 4 rotates on the first support ring 13. The first support ring 13 is fixedly connected to the slide rod 12.

[0028] In detail, the arc-shaped groove plate 11, the slide bar 12 and the first support ring 13 can support the turntable 4. When the turntable 4 tilts toward the left, the screen box 2 performs a circular translation motion on the surface where the turntable 4 is located. The movement mode of the screen box 2 is decomposed in the horizontal direction and the vertical direction, thereby obtaining a composite movement mode of the screen box 2. When the turntable 4 tilts toward the right, the screen box 2 will still perform a circular translation motion on the surface where the turntable 4 is located, and because the inclination direction of the turntable 4 is opposite, the movement trajectory of the screen box 2 is different. In this way, when the turntable 4 tilts alternately to the left and to the right, the screen box 2 can realize an alternating movement mode.

[0029] It should be noted that when the turntable 4 is tilted in only one direction, the raw materials in the screen box 2 will gather toward one side wall of the screen box 2 along the width direction of the screen box 2, while there will be less raw materials on the other side wall of the screen box 2. This will result in the raw materials being unable to be fully dispersed and causing screening obstruction. Only by alternating the tilt direction of the turntable 4 can the raw materials be alternately moved in the width direction of the screen box 2, thereby avoiding the aggregation of raw materials. To achieve the above purpose, the slide bar 12 can be made to reciprocate up and down on the arc groove plate 11, and the slide bar 12 moves along the trajectory of the arc groove plate 11, thereby reciprocatingly adjusting the direction of the turntable 4, and the first support ring 13 is used to connect the slide bar 12 and the turntable 4.

[0030] Furthermore, the oscillating structure 3 further includes a vertical main shaft 14, which is inserted into the outer box body 1 and rotates on the outer box body 1. A first spherical disk 15 is provided at the bottom of the main shaft 14, and a second spherical disk 16 is provided on the end surface of the turntable 4. The center of the first spherical disk 15 and the center of the second spherical disk 16 both coincide with the center point of the turntable 4, and the first spherical disk 15 and the second spherical disk 16 are in friction contact. The first spherical disk 15 and the second spherical disk 16 are connected via friction transmission, and the second spherical disk 16 and the eccentric column 5 are located on both sides of the rotating disk 4 .

[0031] In detail, the main shaft 14 can drive the turntable 4 to rotate through the first spherical disk 15 and the second spherical disk 16. When the slide rod 12 moves on the arc groove plate 11, the first spherical disk 15 and the second spherical disk 16 can always maintain a surface contact state, thereby enabling the main shaft 14 to always provide power for the turntable 4.

[0032] Furthermore, a fixing ring 17 is rotatably sleeved on the main shaft 14, and fixing frames 18 are fixed on the front and rear outer walls of the fixing ring 17, and a fixing column 19 is inserted and fixed on the fixing frame 18, the axis of the fixing column 19 coincides with the center point of the turntable 4, and the fixing column 19 is rotatably connected to the outer wall of the first support ring 13.

[0033] In detail, since the first spherical disk 15 and the second spherical disk 16 are in contact, and the transmission function is achieved through friction, in order to avoid vibration causing the turntable 4 to move in the vertical direction and separate the first spherical disk 15 and the second spherical disk 16, it is necessary to use a fixing ring 17, a fixing frame 18 and a fixing column 19 to achieve direct connection between the main shaft 14 and the turntable 4, thereby ensuring the stability of the transmission state.

[0034] Furthermore, an eccentric disk 20 is eccentrically arranged on the outer wall of the main shaft 14 outside the outer box body 1, a second support ring 21 is rotatably sleeved on the outer wall of the eccentric disk 20, a push-pull plate 22 is fixed on the outer wall of the second support ring 21, and the push-pull plate 22 is rotatably connected to the slide bar 12 outside the outer box body 1 through a connecting rod 23; A moving sleeve 25 is provided on the push-pull plate 22 , and a guide frame 24 is provided at the bottom of the moving sleeve 25 . The moving sleeve 25 slides on the guide frame 24 , and the guide frame 24 is fixed on the outer box body 1 .

[0035] In detail, since the arc groove plate 11 is embedded in the outer box body 1 and the slide rod 12 passes through the arc groove plate 11, one end of the slide rod 12 extends to the outside of the outer box body 1, and the two ends of the connecting rod 23 are rotatably connected to the push-pull plate 22 and the slide rod 12 through two connecting balls. Since the eccentric disk 20 is eccentrically arranged on the main shaft 14, when the main shaft 14 rotates, the main shaft 14 will drive the eccentric disk 20 and the second support ring 21 to perform eccentric movement, and the second support ring 21 will pull the slide rod 12 up and down through the push-pull plate 22 and the connecting rod 23, thereby providing power for the tilting and swinging of the turntable 4, and this structural method mainly utilizes the rotation of the main shaft 14, so the main shaft 14 can provide both rotational power and swinging power for the turntable 4.

[0036] The guide frame 24 and the movable sleeve 25 are mainly provided to limit the direction of the push-pull plate 22 so as to fix the direction of the push-pull plate 22 and prevent it from rotating arbitrarily following the second support ring 21. The sliding direction of the push-pull plate 22 on the movable sleeve 25 is perpendicular to the sliding direction of the movable sleeve 25 on the guide frame 24.

[0037] Furthermore, a transmission wheel 26 is provided at the bottom of the main shaft 14, and multiple transmission wheels 26 are connected to each other through a transmission belt 27. A fixing plate 28 is fixed on the top of the outer box body 1, and a main motor 29 is provided on the fixing plate 28. The output end of the main motor 29 is connected to a transmission wheel 26.

[0038] In detail, the main motor 29 can provide power for multiple transmission wheels 26 and transmission belts 27, thereby driving multiple main shafts 14 to rotate, and the fixed plate 28 provides support for the main motor 29.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vibrating screening mechanism for plastic material particles of automobile guard plates, characterized in that: It includes an outer box body located on the outside and a screen box located on the inside. The screen box vibrates in the outer box body and screens the raw materials. The outer box body collects the screened raw materials. A plurality of oscillating structures are arranged on the inner wall of the outer box body. The oscillating structures are used to drive the screen box to vibrate. The oscillating structure includes a turntable, an eccentric column and a connecting plate, wherein the axis of the turntable is inclined in the vertical direction, the eccentric column is eccentrically mounted on the bottom surface of the turntable, and the eccentric column is rotatably connected to the connecting plate, and the connecting plate is horizontally fixed on the outer wall of the screen box; The outer wall of the screen box is densely covered with screen holes, a feed hose is connected to one end of the screen box along the length direction of the screen box, and a discharge hose is connected to the other end of the screen box. The vertical plane where the turntable axis is located is perpendicular to the length direction of the screen box.

2. The automobile guard plate plastic material particle vibrating screening mechanism according to claim 1, characterized in that: A plurality of ribs are arranged at the bottom of the inner wall of the screen box, the length direction of the ribs is perpendicular to the length direction of the screen box, and the plurality of ribs are arranged along the length direction of the screen box. The surface of the ribs facing the feed hose is set as an inclined surface, and the surface of the ribs facing the discharge hose is set as a vertical surface.

3. The automobile guard plate plastic material particle vibrating screening mechanism according to claim 2, characterized in that: The top surface of the screen box and the bottom surface of the outer box body are both configured as cambered surfaces, the middle area of ​​the bottom surface of the outer box body is configured as an inclined area, and a discharge channel is connected to the lowest point of the inclined area.

4. The automobile guard plate plastic material particle vibrating screening mechanism according to claim 3, characterized in that: The oscillation structure includes an arc-shaped groove plate, a sliding rod and a first support ring. The arc-shaped groove plate is embedded in the side wall of the outer box body. The center of the arc-shaped groove plate coincides with the center point of the turntable. The sliding rod passes through the arc-shaped groove plate and slides along the track of the arc-shaped groove plate. The first support ring is sleeved on the outer wall of the turntable, and the turntable rotates on the first support ring. The first support ring is fixedly connected to the sliding rod.

5. The automobile guard plate plastic material particle vibrating screening mechanism according to claim 4, characterized in that: The oscillating structure further includes a vertical main shaft, which is inserted into the outer box body and rotates on the outer box body. A first spherical disk is arranged at the bottom of the main shaft, and a second spherical disk is arranged on the end surface of the turntable. The center of the first spherical disk and the center of the second spherical disk both coincide with the center point of the turntable, and the first spherical disk and the second spherical disk are in friction contact. The first spherical disc and the second spherical disc are connected through friction transmission, and the second spherical disc and the eccentric column are located on both sides of the rotating disc.

6. The automobile guard plate plastic material particle vibrating screening mechanism according to claim 5, characterized in that: A fixed ring is rotatably sleeved on the main shaft, and fixed frames are fixed on the front and rear outer walls of the fixed ring. Fixed columns are inserted and fixed on the fixed frames. The axis of the fixed columns coincides with the center point of the turntable, and the fixed columns are rotatably connected to the outer wall of the first support ring.

7. The automobile guard plate plastic material particle vibrating screening mechanism according to claim 6, characterized in that: An eccentric disk is eccentrically arranged on the outer wall of the main shaft outside the outer box body, a second support ring is rotatably sleeved on the outer wall of the eccentric disk, a push-pull plate is fixed on the outer wall of the second support ring, and the push-pull plate is rotatably connected to the sliding rod outside the outer box body through a connecting rod; Wherein, a moving sleeve is arranged on the sliding sleeve of the push-pull plate, a guide frame is arranged at the bottom of the moving sleeve, and the moving sleeve slides on the guide frame, and the guide frame is fixed on the outer box body.

8. The automobile guard plate plastic material particle vibrating screening mechanism according to claim 7, characterized in that: A transmission wheel is arranged at the bottom of the main shaft, and a plurality of transmission wheels are connected through a transmission belt. A fixing plate is fixed on the top of the outer box body, and a main motor is arranged on the fixing plate. The output end of the main motor is connected to a transmission wheel.

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