Efficient filtering and screening device for plastic particle production

Abstract

The utility model discloses an efficient filtering and screening device for plastic particle production, and belongs to the technical field of plastic particle production. The efficient filtering and screening device for plastic particle production comprises a bottom plate, a screening mechanism is arranged on the upper end face of the bottom plate and comprises a screening box, a mounting plate is mounted on one side of the interior of the screening box, an infrared spectrometer is embedded in the center of one side of the mounting plate, and a photoelectric sensor is arranged at the position, located above the infrared spectrometer, of one side of the mounting plate; an industrial camera is arranged at the position, located below the infrared spectrometer, of one side of the mounting plate, a square groove is formed in the upper end face of the screening box, a communicating box is arranged in the square groove, the outer wall of the communicating box is connected with the inner wall of the square groove, a communicating cavity is formed in the communicating box, a hopper is connected to the upper end face of the communicating box, and the two sides of the inner wall of the hopper are inclined; an opening is formed in the bottom end of the hopper, and the width of the opening is consistent with that of the upper end of the communicating cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic pellet production, in particular to a high-efficiency filtering and screening device for plastic pellet production. Background Art

[0002] Plastic pellets are an industrial raw material typically made by mixing and processing polymers and related additives. Plastic pellets are made by melting, mixing, and processing plastic raw materials into granules of a specified size and shape. They serve as the building block for plastic products. Typically, plastic pellets consist of multiple components, including pellets, fillers, additives, and lubricants. They are characterized by their lightweight, corrosion resistance, strong plasticity, and excellent formability.

[0003] For example, Chinese patent publication number CN209381202U discloses a high-efficiency filtering and screening device for the production of plastic pellets, comprising a bracket, two groups of brackets symmetrically arranged front and back, and a discharge ring fixedly connected to the left side of the bracket, with bearing B inserted in the discharge ring, and bearing A fixedly connected to the right side of the bracket, with a rotating disk inserted in bearing A, a screen cylinder arranged between bearing A and the discharge ring, and the two ends of the screen cylinder respectively inserted in bearing B and the rotating disk, a transport auger welded to the inner wall of the screen cylinder, a feed pipe inserted on the right side of the rotating disk, and a feed funnel welded to the top of the feed pipe, bearing A welded to the right wall of the rotating disk, and a limit ring welded to the center of the right wall of the rotating disk, and an auxiliary positioning frame fixedly fitted on the feed pipe. This device can simultaneously drive the waste particles to be discharged during the screening process of the screen cylinder through the transport auger;

[0004] The technical solution recorded in this proposal is to roll the plastic particles in the screen cylinder by rotating the screen cylinder, so that the plastic particles after screening are leaked out from the bottom of the bracket. However, in actual use, this solution can only screen the plastic particles according to the particle size, and is not convenient for screening according to the color or material type of the plastic particles, thereby reducing the practicality of the screening device. Utility Model Content

[0005] The purpose of the present invention is to provide a high-efficiency filtering and screening device for the production of plastic pellets to solve the problems raised in the above-mentioned background technology.

[0006] In view of the above problems, the technical solution proposed by the present invention is:

[0007] A high-efficiency filtering and screening device for plastic pellet production comprises a base plate, an upper end surface of the base plate is provided with a screening mechanism, the screening mechanism comprises a screening box, a mounting plate is installed on one side of the interior of the screening box, an infrared spectrometer is embedded in the center of one side of the mounting plate, and a photoelectric sensor is provided on one side of the mounting plate located above the infrared spectrometer, an industrial camera is provided on one side of the mounting plate located below the infrared spectrometer, a square groove is provided on the upper end surface of the screening box, a connecting box is provided inside the square groove, the outer wall of the connecting box is connected to the inner wall of the square groove, and a connecting cavity is provided inside the connecting box, the upper end surface of the connecting box is connected to a hopper, both sides of the inner wall of the hopper are inclined, and an opening is provided at the bottom end of the hopper, the width of the opening is consistent with the width of the upper end of the connecting cavity.

[0008] Furthermore, an air nozzle is connected to one side of the mounting plate below the industrial camera, and an air pump is provided on one side of the outer wall of the screening box. The air outlet end of the air pump passes through the screening box and extends to the interior and is connected to a pipe. The end of the pipe away from the air pump passes through the mounting plate and is connected to the air nozzle.

[0009] The beneficial effect of adopting the above further solution is that, through the coordinated use of the air pump, the pipeline and the air nozzle, when the air pump is working, the air nozzle can be ejected under the connection of the pipeline, thereby facilitating subsequent screening according to color or material type.

[0010] Furthermore, the photoelectric sensor is electrically connected to the industrial camera, and a controller is provided on the side of the mounting plate near the air pump, wherein the controller is electrically connected to the air pump, the industrial camera, and the infrared spectrometer. The beneficial effect of adopting the above further scheme is that by electrically connecting the photoelectric sensor and the infrared spectrometer to the industrial camera, and by using the industrial camera and the photoelectric sensor in combination, rapid detection and judgment of two different colored plastic pellets can be achieved. The infrared spectrometer uses infrared spectroscopy technology, based on the principles of molecular vibration and rotational energy level transitions, to identify the material type of the plastic pellets by analyzing the absorption characteristics of the material molecules to infrared light of different wavelengths. By electrically connecting the controller to the air pump, the industrial camera, and the infrared spectrometer, the type data and color data detected by the infrared spectrometer and the industrial camera are transmitted to the controller, and the controller confirms the color and type and controls the operation of the air pump.

[0011] Furthermore, a discharge box is connected to one side of the bottom surface of the screening box, the upper end of the discharge box passes through the screening box and extends to the interior, and a partition is connected to the inner center of the discharge box, and the outer wall sides of the partition and the inner wall sides of the discharge box form a first material cavity and a second material cavity respectively, and the bottom end of the discharge box is located at the first material cavity and the second material cavity and is provided with a discharge port.

[0012] The beneficial effect of adopting the above-mentioned further scheme is that by setting a partition, the interior of the discharge box is divided into a first material chamber and a second material chamber, and the first material chamber and the second material chamber are distributed in sequence from left to right. The screened plastic particles fall into the first material chamber and the second material chamber respectively, and by setting a pair of discharge ports, the plastic particles that have been screened and separated inside the first material chamber and the second material chamber are easily discharged.

[0013] Furthermore, a first wedge block and a second wedge block are connected to both sides of the outer wall of the discharge box near the upper end, and the opposite sides of the first wedge block and the second wedge block are connected to the mounting plate and the inner wall of the screening box respectively.

[0014] The beneficial effect of adopting the above further solution is that by setting the first wedge block and the second wedge block, when two different plastic pellets are screened, they may collide with the oblique edges of the first wedge block and the second wedge block, so that the two different plastic pellets can better fall into the interior of the first material cavity and the second material cavity under the action of the oblique edges of the first wedge block and the second wedge block.

[0015] Furthermore, a feeding mechanism is provided on the upper end surface of the bottom plate on one side of the screening box, and the feeding mechanism includes a cylinder, the interior of the cylinder is rotatably connected to a transmission rod, the outside of the transmission rod is provided with a spiral conveying blade, the upper end of the cylinder is provided with a motor, the output end of the motor is transmission-connected to the transmission rod, and a discharge pipe is connected to one side of the outer wall of the cylinder near the upper end, and a feed port is opened on one side of the outer wall of the cylinder near the bottom end.

[0016] The beneficial effect of adopting the above further scheme is that by setting the feed port, it is convenient to feed into the inside of the cylinder, and by starting the motor, it is convenient to drive the transmission rod and the spiral conveying blade to rotate together, and the rotating spiral conveying blade is used to transport the material to the discharge pipe, so that the plastic pellets are discharged through the discharge pipe.

[0017] Furthermore, a feeding mechanism is provided on the outside of the cylinder near the feed port, and the feeding mechanism includes a feeding box, the bottom surface of the feeding box is connected to the top surface of the bottom plate, and a mounting groove is provided at one end of the feeding box close to the cylinder, the inner wall of the mounting groove is connected to the outer wall of the cylinder, and a feeding groove is provided at the inner center of the feeding box, and the bottom surface of the feeding groove is inclined.

[0018] The beneficial effect of adopting the above further solution is that by setting up a feed box and opening a feed trough at the center of the feed box, since the bottom surface of the feed trough is inclined, it is convenient for plastic particles to enter the interior of the cylinder through the feed trough and the feed port.

[0019] Furthermore, the front and back sides of the bottom plate are connected to support legs, and the upper end surface of the bottom plate located at the screening box is provided with a connecting groove, and the inner wall of the connecting groove is connected to the outer wall of the screening box near the bottom end.

[0020] The beneficial effect of adopting the above further solution is that by providing support feet, the bottom plate is easily supported, so that there is a distance between the bottom surface of the screening box and the bottom surface of the support feet, which facilitates the placement of a plastic pellet collection box at the bottom of the screening box discharge box.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows: the high-efficiency filtering and screening device for the production of plastic pellets is provided with a hopper and a connecting box. Since an opening is provided at the bottom end of the hopper and both sides of the inner wall of the hopper are inclined, the plastic pellets fall into the interior of the connecting box through the opening under the action of the inclination of the inner wall, and enter the interior of the screening box under the action of the connecting cavity. Through the coordinated use of an industrial camera and a photoelectric sensor, rapid detection and judgment of two plastic pellets of different colors can be achieved, thereby facilitating the screening of two plastic pellets of different colors. Through an infrared spectrometer, infrared spectroscopy technology is used to irradiate infrared light on the inspected plastic pellets, and the molecular structure of the plastic pellets is judged by the intensity of the light absorbed or transmitted by the plastic pellets, so as to identify the material types of the two different plastic pellets. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a high-efficiency filtering and screening device for plastic pellet production provided by the utility model Figure 1 ;

[0023] Figure 2 A schematic diagram of the three-dimensional structure of a high-efficiency filtering and screening device for plastic pellet production provided by the utility model Figure 2 ;

[0024] Figure 3 This is an exploded three-dimensional structural diagram of a screening box of a high-efficiency filtering and screening device for producing plastic pellets provided by the utility model;

[0025] Figure 4 A cross-sectional view of a cylinder of a high-efficiency filtering and screening device for producing plastic pellets provided by the utility model;

[0026] Figure 5 The utility model provides a schematic diagram of the front cross-sectional structure of a screening box of a high-efficiency filtering and screening device for producing plastic pellets.

[0027] In the figure: 100, bottom plate; 200, screening mechanism; 2001, screening box; 2002, mounting plate; 2003, photoelectric sensor; 2004, infrared spectrometer; 2005, industrial camera; 2006, controller; 2007, air nozzle; 2008, air pump; 2009, discharge box; 2010, first wedge block; 2011, second wedge block; 300, square trough; 400, connecting box; 500, hopper; 600, opening; 700, feeding mechanism; 7001, cylinder; 7002, transmission rod; 7003, spiral conveying blade; 7004, motor; 7005, discharge pipe; 7006, feed port; 800, feeding mechanism; 8001, feed box; 8002, trough; 900, supporting foot. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-Figure 5The utility model provides a technical solution: a high-efficiency filtering and screening device for producing plastic pellets, comprising a bottom plate 100, a screening mechanism 200 being provided on the upper end surface of the bottom plate 100, the screening mechanism 200 comprising a screening box 2001, a mounting plate 2002 being installed on one side of the interior of the screening box 2001, an infrared spectrometer 2004 being embedded at the center of one side of the mounting plate 2002, and a photoelectric sensor 2003 being provided on one side of the mounting plate 2002 located above the infrared spectrometer 2004, an industrial camera 2005 being provided on one side of the mounting plate 2002 located below the infrared spectrometer 2004, a square groove 300 being provided on the upper end surface of the screening box 2001, a connecting box 400 being provided inside the square groove 300, an outer wall of the connecting box 400 being connected to the inner wall of the square groove 300, and a connecting cavity being provided inside the connecting box 400, a hopper 500 being connected to the upper end surface of the connecting box 400, and an inner wall of the hopper 500 Both sides are inclined, and an opening 600 is provided at the bottom end of the hopper 500, and the width of the opening 600 is consistent with the width of the upper end of the connecting cavity. By setting the hopper 500 and the connecting box 400, since the opening 600 is provided at the bottom end of the hopper 500 and the inner walls of the hopper 500 are inclined, the plastic pellets fall into the interior of the connecting box 400 through the opening 600 under the action of the inclination of the inner wall, and enter the interior of the screening box 2001 under the action of the connecting cavity. Through the coordinated use of the industrial camera 2005 and the photoelectric sensor 2003, rapid detection and judgment of two different colors of plastic pellets can be achieved, thereby facilitating the screening of two different colors of plastic pellets. Through the infrared spectrometer 2004, infrared spectroscopy technology is used to irradiate infrared light on the plastic pellets to be inspected, and the molecular structure of the plastic pellets is judged by the intensity of the light absorbed or transmitted by the plastic pellets to identify the material types of the two different plastic pellets.

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 5The utility model provides a technical solution: one side of the mounting plate 2002 is located below the industrial camera 2005 and is connected to an air nozzle 2007. An air pump 2008 is provided on one side of the outer wall of the screening box 2001. The air outlet of the air pump 2008 passes through the screening box 2001 and extends to the interior and is connected to a pipeline. The end of the pipeline away from the air pump 2008 passes through the mounting plate 2002 and is connected to the air nozzle 2007. The photoelectric sensor 2003 is electrically connected to the industrial camera 2005. The mounting plate 2002 is provided with a side close to the air pump 2008. Controller 2006, controller 2006 is electrically connected to air pump 2008, industrial camera 2005 and infrared spectrometer 2004, one side of the bottom surface of screening box 2001 is connected to discharge box 2009, the upper end of discharge box 2009 passes through screening box 2001 and extends to the inside, and a partition is connected to the inner center of discharge box 2009, the outer wall of the partition and the inner wall of discharge box 2009 form a first material cavity and a second material cavity respectively, the bottom end of discharge box 2009 is located at the first material cavity and the second material cavity and has a discharge port, the discharge box The outer wall of 2009 near the upper end is connected to the first wedge block 2010 and the second wedge block 2011 respectively. The opposite sides of the first wedge block 2010 and the second wedge block 2011 are connected to the mounting plate 2002 and the inner wall of the screening box 2001 respectively. By electrically connecting the controller 2006 with the air pump 2008, the industrial camera 2005 and the infrared spectrometer 2004, the type data and color data detected by the infrared spectrometer 2004 and the industrial camera 2005 are transmitted to the controller 2006, and the controller 2006 confirms the color When the type data and color data detected by the infrared spectrometer 2004 and the industrial camera 2005 are inconsistent with the data set in the controller 2006, the air pump 2008 is controlled to work. When the air pump 2008 is working, the air nozzle 2007 is used to spray air under the effect of the pipeline connection, and the plastic pellets with inconsistent colors or materials are blown into the second material cavity, and the plastic pellets with consistent colors or materials fall into the first material cavity. By setting a pair of discharge ports, the plastic pellets that have been screened and separated in the first and second material cavities can be discharged.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 5The utility model provides a technical solution: the upper end surface of the bottom plate 100 is located on one side of the screening box 2001 and is provided with a feeding mechanism 700, the feeding mechanism 700 includes a cylinder 7001, the interior of the cylinder 7001 is rotatably connected to a transmission rod 7002, the outside of the transmission rod 7002 is provided with a spiral conveying blade 7003, the upper end of the cylinder 7001 is provided with a motor 7004, the output end of the motor 7004 is connected to the transmission rod 7002 , and a discharge pipe 7005 is connected to one side of the outer wall of the cylinder 7001 near the upper end, a feed port 7006 is provided on one side of the outer wall of the cylinder 7001 near the bottom end, a feed mechanism 800 is provided on the outside of the cylinder 7001 near the feed port 7006, and the feed mechanism 800 includes a feed box 8001, the bottom surface of the feed box 8001 is connected to the top surface of the bottom plate 100, and a mounting hole is provided on one end of the feed box 8001 near the cylinder 7001 The trough is installed, and the inner wall of the installation trough is connected to the outer wall of the cylinder 7001, and a trough 8002 is opened at the inner center of the material box. The bottom surface of the trough 8002 is inclined, and the front and back sides of the bottom plate 100 are connected to the supporting feet 900. The bottom plate 100 is located at the upper end surface of the screening box 2001 and is provided with a connecting groove. The inner wall of the connecting groove is connected to the outer wall of the screening box 2001 near the bottom. By setting up the feed box 8001 and opening the trough 8002 at the center of the feed box 8001, since the bottom surface of the trough 8002 is inclined, it is convenient for the plastic pellets to pass through the trough 8002 and the feed port 7006 into the interior of the cylinder 7001. By starting the motor 7004, it is convenient to drive the transmission rod 7002 and the spiral conveying blade 7003 to rotate together, and utilize the rotating spiral conveying blade 7003 to transport the material to the discharge pipe 7005, so that the plastic pellets are discharged through the discharge pipe 7005.

[0034] Specifically, the working principle of the high-efficiency filtering and screening device for the production of plastic pellets is as follows: when in use, a feed box 8001 is set, and a trough 8002 is opened at the center of the feed box 8001. Since the bottom surface of the trough 8002 is inclined, it is convenient for the plastic pellets to enter the interior of the cylinder 7001 through the trough 8002 and the feed port 7006. By starting the motor 7004, it is convenient to drive the transmission rod 7002 and the spiral conveying blade 7003 to rotate together, and the rotating spiral conveying blade 7003 is used to convey the material to the discharge pipe 7005, so that the plastic pellets are discharged through the discharge pipe 7005, thereby making the plastic pellets The plastic pellets fall into the interior of the connecting box 400 through the opening 600 under the action of the inner wall tilt, and enter the interior of the screening box 2001 under the action of the connecting cavity. Through the coordinated use of the industrial camera 2005 and the photoelectric sensor 2003, it is possible to quickly detect and judge the two different colors of plastic pellets, thereby facilitating the screening of the two different colors of plastic pellets. The color data detected by the industrial camera 2005 is transmitted to the controller 2006, and the controller 2006 confirms the color. When the color data detected by the industrial camera 2005 is inconsistent with the data set in the controller 2006, the air pump 2008 is controlled. When the air pump 2008 is working, the air nozzle 2007 can be used to blow air under the effect of the connection of the pipeline, blowing the plastic pellets of inconsistent colors into the second material chamber, and the plastic pellets of consistent color fall into the first material chamber. By setting a pair of discharge ports, the plastic pellets that have been screened and separated in the first and second material chambers can be discharged, thereby screening according to color. The infrared spectrometer 2004 uses infrared spectroscopy technology to irradiate infrared light on the plastic pellets to be tested. The molecular structure of the plastic pellets is judged by the intensity of the light absorbed or transmitted by the plastic pellets, so as to identify the material types of the two different plastic pellets. The infrared spectrometer 200 The material type data detected by the infrared spectrometer 2004 is transmitted to the controller 2006, which confirms the material type. When the material type data detected by the infrared spectrometer 2004 is inconsistent with the data set in the controller 2006, the air pump 2008 is controlled to work. When the air pump 2008 is working, the air nozzle 2007 is blown under the effect of the connection of the pipeline, and the plastic pellets of inconsistent material types are blown into the second material cavity, and the plastic pellets of consistent material types fall into the first material cavity. By setting a pair of discharge ports, the plastic pellets that have been screened and separated in the first and second material cavities are discharged, thereby screening according to the material.

Claims

1. A high-efficiency filtering and screening device for the production of plastic pellets, characterized in that: The invention comprises a bottom plate (100), wherein the upper end surface of the bottom plate (100) is provided with a screening mechanism (200), wherein the screening mechanism (200) comprises a screening box (2001), wherein a mounting plate (2002) is mounted on one side of the interior of the screening box (2001), wherein an infrared spectrometer (2004) is embedded at the center of one side of the mounting plate (2002), and wherein a photoelectric sensor (2003) is mounted on one side of the mounting plate (2002) above the infrared spectrometer (2004), and an industrial camera is mounted on one side of the mounting plate (2002) below the infrared spectrometer (2004). (2005), a square groove (300) is provided on the upper end surface of the screening box (2001), a connecting box (400) is provided inside the square groove (300), the outer wall of the connecting box (400) is connected to the inner wall of the square groove (300), and a connecting cavity is provided inside the connecting box (400), the upper end surface of the connecting box (400) is connected to a hopper (500), both sides of the inner wall of the hopper (500) are inclined, and an opening (600) is provided at the bottom end of the hopper (500), and the width of the opening (600) is consistent with the width of the upper end of the connecting cavity.

2. A high-efficiency filtration and screening device for plastic pellet production according to claim 1, characterized in that: One side of the mounting plate (2002) is located below the industrial camera (2005) and is connected to an air nozzle (2007). An air pump (2008) is provided on one side of the outer wall of the screening box (2001). The air outlet end of the air pump (2008) passes through the screening box (2001) and extends to the interior and is connected to a pipeline. The end of the pipeline away from the air pump (2008) passes through the mounting plate (2002) and is connected to the air nozzle (2007).

3. A high-efficiency filtration and screening device for plastic pellet production according to claim 2, characterized in that: The photoelectric sensor (2003) is electrically connected to the industrial camera (2005); a controller (2006) is provided on a side of the mounting plate (2002) close to the air pump (2008); and the controller (2006) is electrically connected to the air pump (2008), the industrial camera (2005) and the infrared spectrometer (2004).

4. A high-efficiency filtration and screening device for plastic pellet production according to claim 3, characterized in that: A discharge box (2009) is connected to one side of the bottom surface of the screening box (2001), the upper end of the discharge box (2009) extends through the screening box (2001) to the interior, and a partition is connected to the inner center of the discharge box (2009), the outer wall of the partition and the inner wall of the discharge box (2009) form a first material cavity and a second material cavity respectively, and the bottom end of the discharge box (2009) is located at the first material cavity and the second material cavity and is provided with a discharge port.

5. A high-efficiency filtering and screening device for producing plastic pellets according to claim 4, characterized in that: A first wedge block (2010) and a second wedge block (2011) are respectively connected to both sides of the outer wall of the discharge box (2009) near the upper end, and the opposite sides of the first wedge block (2010) and the second wedge block (2011) are respectively connected to the inner wall of the mounting plate (2002) and the screening box (2001).

6. A high-efficiency filtering and screening device for producing plastic pellets according to claim 1, characterized in that: The upper end surface of the bottom plate (100) is located on one side of the screening box (2001) and is provided with a feeding mechanism (700). The feeding mechanism (700) comprises a cylinder (7001). The interior of the cylinder (7001) is rotatably connected to a transmission rod (7002). The exterior of the transmission rod (7002) is provided with a spiral conveying blade (7003). The upper end of the cylinder (7001) is provided with a motor (7004). The output end of the motor (7004) is transmission-connected to the transmission rod (7002). A discharge pipe (7005) is connected to one side of the outer wall of the cylinder (7001) near the upper end. A feed port (7006) is provided to one side of the outer wall of the cylinder (7001) near the bottom end.

7. A high-efficiency filtering and screening device for producing plastic pellets according to claim 6, characterized in that: A feeding mechanism (800) is provided on the outside of the cylinder (7001) near the feeding port (7006), and the feeding mechanism (800) includes a feeding box (8001), the bottom surface of the feeding box (8001) is connected to the top surface of the bottom plate (100), and a mounting groove is provided at one end of the feeding box (8001) near the cylinder (7001), the inner wall of the mounting groove is connected to the outer wall of the cylinder (7001), and a material trough (8002) is provided at the inner center of the material box, and the bottom surface of the material trough (8002) is inclined.

8. The high-efficiency filtering and screening device for producing plastic pellets according to claim 1, characterized in that: The front and back sides of the bottom plate (100) are both connected to supporting feet (900), and the upper end surface of the bottom plate (100) located on the screening box (2001) is provided with a connecting groove, and the inner wall of the connecting groove is connected to the outer wall of the screening box (2001) near the bottom end.

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