Device for removing bent shavings from shaving board

Abstract

The utility model relates to the technical field of shaving boards, and provides a device for removing bent shavings from shaving boards, which comprises a plurality of removing and screening rollers arranged in sequence, a plurality of removing and screening sheets arranged on the removing and screening rollers and arranged in sequence along the axial direction of the removing and screening rollers, a removing and screening interval is formed between every two adjacent removing and screening sheets, and the removing and screening rollers are arranged on the removing and screening rollers. The material removing pieces extend into the material removing intervals on the other adjacent material removing and screening roller, the material removing pieces are provided with one or more material removing notches, and when the number of the material removing notches is more than one, the material removing notches are circumferentially arranged in the circumferential direction of the material removing pieces. By means of the technical scheme, the problem that in the prior art, bent wood shavings cannot be discharged in the material distributing process, and the quality of finished products is affected is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of particleboards, and particularly to a device for removing bent particles from particleboards. Background Art

[0002] During the operation of a particleboard production line, materials enter the cloth-feeding device from a metering device. Through a throwing roller, the materials fall onto a screening roller below. The materials pass through the screening roller and enter a squirrel-cage roller below to complete cloth-feeding. However, during the cloth-feeding process, some bent particles cannot be discharged and enter the squirrel-cage roller below, causing warping on the surface of the board and affecting the surface flatness of the slab. Currently, there is no effective measure in the industry to solve this problem. Content of the Utility Model

[0003] The utility model provides a device for removing bent particles from particleboards, which solves the problem that in the related art, bent particles cannot be discharged during the cloth-feeding process in particleboard production, affecting the quality of the finished product.

[0004] The technical solution of the utility model is as follows:

[0005] A device for removing bent particles from particleboards, used to remove bent particle flakes from particle flakes, includes

[0006] Screening rollers for removing particles, several of which are arranged in sequence.

[0007] Particle-removing pieces, which are arranged on the screening rollers for removing particles. There are several particle-removing pieces, which are arranged in sequence along the axial direction of the screening rollers for removing particles. A particle-removing interval is formed between two adjacent particle-removing pieces. The particle-removing pieces extend into the particle-removing intervals on the adjacent other screening rollers for removing particles. The particle-removing pieces have particle-removing notches, and there is one or more particle-removing notches. When there are multiple particle-removing notches, they are arranged in a circumferential pattern on the circumferential direction of the particle-removing pieces.

[0008] As a further technical solution,

[0009] A frame, on which the screening rollers for removing particles are rotatably arranged.

[0010] Waste discharging parts, which are arranged on the frame and are located on one side of the screening rollers for removing particles.

[0011] Guide plates, one end of which is arranged on the waste discharging parts, and the other end extends into the particle-removing intervals and gradually rises close to the screening rollers for removing particles.

[0012] As a further technical solution, it further includes

[0013] Throwing rollers, which are rotatably arranged on the frame and are arranged in sequence in an inclined manner.

[0014] Fine sieve roller, the fine sieve roller is rotatably arranged on the frame, the fine sieve rollers are arranged in several rows, the fine sieve roller and the waste discharging member are respectively arranged on both sides of the screening roller, and the throwing roller is located above the fine sieve roller and the screening roller.

[0015] As a further technical solution, the surface of the throwing roller is provided with throwing pieces, the throwing pieces are in plate shape or column shape, and are arranged in a circle in several numbers. When the throwing roller rotates, the throwing pieces on the two throwing rollers abut against each other or cancel the abutment; the surface of the fine sieve roller is evenly distributed with several rhombic protrusions, and between adjacent two fine sieve rollers is for the falling of the flake.

[0016] As a further technical solution, it further includes

[0017] Cage roller, the cage roller is rotatably arranged on the frame, the cage rollers are arranged in several rows, and the cage roller is located below the fine sieve roller and the screening roller.

[0018] As a further technical solution, it further includes

[0019] Conveyor belt, the conveyor belt is arranged below the cage roller and is used for receiving the flakes falling from the cage roller.

[0020] As a further technical solution, it further includes

[0021] Spreading box, the spreading box is arranged on the frame and has a blanking port at the bottom, and the throwing rollers are arranged obliquely in sequence at the blanking port.

[0022] As a further technical solution, it further includes

[0023] Cover body, the screening roller, the waste discharging member, the guide plate, the throwing roller, the fine sieve roller, the cage roller and the spreading box are all arranged in the cover body.

[0024] As a further technical solution, the cover body has a feeding port, and the feeding port is located above the spreading box.

[0025] As a further technical solution, the screening notches on adjacent two screening rollers are symmetrically arranged.

[0026] The working principle and beneficial effects of the present utility model are:

[0027] In the present utility model, a screening roller is designed. The core component for removing bent wood shavings is a number of screening rollers arranged in sequence, and these screening rollers constitute a continuous operation removal system. The arrangement of each screening roller ensures that the material can pass through the entire removal process continuously and evenly. The screening rollers are driven by a chain, with a simple structure and not easily damaged. A number of material removal blades are provided on each screening roller. These material removal blades are arranged along the axial direction of the screening roller to form a series of orderly material removal intervals. The material removal blades on adjacent screening rollers are arranged staggeredly. The material removal blades and the corresponding material removal blades on the adjacent same screening roller together form a material removal interval, which is a key screening area. Each material removal blade is designed with one or more material removal notches. When there are multiple notches, they are arranged along the circumferential circle of the material removal blade. Such a design is to accurately "capture" and remove bent or non-compliant-sized wood shavings. The principle of removing bent wood shavings is that during the working process, the raw wood shavings pass through each material removal interval with the rotation of the screening roller. Due to the existence of the material removal notches, those bent wood shavings that do not meet the requirements in terms of size or shape cannot pass through these notches smoothly when passing through, and thus are effectively intercepted and removed from the material removal process. While the straight and properly sized wood shavings can pass through smoothly and continue to the next process. At the same time, the setting of the material removal notches enables the bent wood shavings to be smoothly transferred in sequence by the material removal notches under the rotation of the material removal blades driven by the chain, so that the removed materials can be smoothly discharged. In summary, through the fine design of the material removal blades and the ingenious layout of the material removal intervals, the device realizes the efficient screening of wood shavings, removes the bent wood shavings that affect the quality of the finished product, provides raw materials with better quality for the subsequent particleboard pressing process, and thus improves the quality and production efficiency of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above characteristics, technical features, advantages and their implementation manners of the present utility model will be further described below in a clear and understandable manner in combination with the drawings and preferred embodiments.

[0029] Figure 1 is a schematic structural diagram of the present utility model;

[0030] Figure 2 is a schematic structural diagram of the throwing roller in the present utility model;

[0031] Figure 3 is a schematic structural diagram of the screening roller in the present utility model;

[0032] Figure 4 is a schematic structural diagram of the rat cage roller in the present utility model.

[0033] In the figure: screening roller - 1, material removal piece - 2, material removal interval - 201, material removal notch - 202, frame - 3, waste discharging piece - 4, guiding plate - 5, throwing roller - 6, fine screening roller - 7, throwing piece - 601, squirrel cage roller - 8, paving box - 9, blanking port - 901, cover body - 10, feeding port - 1001. Detailed implementation manners

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will describe the specific implementation manners of the present invention with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to these drawings, and other implementation manners can also be obtained.

[0035] To make the drawings concise, only the parts related to the utility model are schematically shown in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also means "more than one" situation, and "several" includes "two" and "more than two".

[0036] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0037] In addition, in the description of this application, the terms "first", "second", etc. are only used for distinguishing descriptions, and cannot be understood as indicating or implying relative importance.

[0038] Referring to Figures 1 to 4 , for the embodiment of the present invention, a device for removing bent wood shavings from particleboard is proposed, which is used to remove bent wood shavings from wood shavings. It includes a screening roller 1, and a plurality of screening rollers 1 are arranged in sequence. Material removal pieces 2 are arranged on the screening roller 1. There are a plurality of material removal pieces 2 and they are arranged in sequence along the axial direction of the screening roller 1. A material removal interval 201 is formed between two adjacent material removal pieces 2. The material removal piece 2 extends into the material removal interval 201 on the adjacent other screening roller 1. The material removal piece 2 has a material removal notch 202. The material removal notch 202 is one or more. When there are multiple ones, they are arranged in a circumferential arrangement in the circumferential direction of the material removal piece 2.

[0039] In this embodiment, a screening roller 1 is designed. The core component for removing bent wood chips is a number of screening rollers 1 arranged in sequence, and these screening rollers 1 constitute a continuous-operation removal system. The arrangement of each screening roller 1 ensures that the material can pass through the entire removal process continuously and evenly. The screening roller 1 is driven by a chain, with a simple structure and not easily damaged. A number of chip-removing blades 2 are provided on each screening roller 1. These chip-removing blades 2 are arranged along the axial direction of the screening roller 1, forming a series of orderly chip-removing intervals 201. The chip-removing blades 2 on adjacent screening rollers 1 are arranged staggeredly. The chip-removing blade 2 and the corresponding chip-removing blade 2 on the same adjacent screening roller 1 together form the chip-removing interval 201, which is a key screening area. Each chip-removing blade 2 is designed with one or more chip-removing notches 202. When there are multiple such notches, they are arranged in a circumferential circle along the chip-removing blade 2. Such a design is to accurately "capture" and remove bent or non-conforming-size wood chips. The principle of removing bent wood chips is that during the working process, the raw wood chips pass through each chip-removing interval 201 as the screening roller 1 rotates. Due to the existence of the chip-removing notches 202, those bent wood chips that do not meet the requirements in terms of size or shape cannot pass through these notches smoothly when passing through, and thus are effectively intercepted and removed from the chip-removing process. While the straight and properly sized wood chips can pass through smoothly and continue to the next process. At the same time, the setting of the chip-removing notches 202 enables the bent wood chips to be smoothly transferred in sequence by the chip-removing notches 202 under the rotation of the chip-removing blades 2 driven by the chain, so that the removed materials can be smoothly discharged. In summary, through the fine design of the chip-removing blades 2 and the ingenious layout of the chip-removing intervals 201, this device realizes the efficient screening of wood chips, removes the bent wood chips that affect the quality of the finished product, provides raw materials with better quality for the subsequent particleboard pressing process, and thus improves the quality and production efficiency of the final product.

[0040] Furthermore, there is a frame 3. The screening roller 1 is rotatably arranged on the frame 3. The waste discharging member 4 is arranged on the frame 3 and is located on one side of the screening roller 1. One end of the guide plate 5 is arranged on the waste discharging member 4, and the other end extends into the chip-removing interval 201 and gradually rises close to the screening roller 1.

[0041] In this embodiment, a frame 3 is designed, and the entire rejection device is installed on a stable frame 3. The frame 3 provides a reliable support platform for the screening roller 1, ensuring the stability and precise alignment of all components during continuous operation. The waste discharging member 4 is arranged on the frame 3 and is adjacent to one side of the screening roller 1. Its main function is to collect and discharge the unqualified wood shavings removed from the rejection interval 201, such as bent or non-standard sized wood shavings, ensuring the continuity of the production process and the cleanliness of the working environment. The guide plate 5 is an important auxiliary component in the device. One end of it is fixed on the waste discharging member 4, and the other end extends into the rejection interval 201 and is designed to gradually incline upward towards the screening roller 1. The ingenuity of this design lies in that the guide plate 5 not only helps guide the wood shavings to smoothly pass through the rejection interval 201, but also through its gradually rising structure, can further promote the natural sliding of the unqualified wood shavings into the waste discharging member 4, improving the rejection efficiency and accuracy. The angle and position of the guide plate 5 are reasonably designed, which can effectively prevent the qualified wood shavings from being mistakenly rejected while ensuring the efficient and smooth rejection process. Through these designs, the device not only realizes the effective rejection of bent wood shavings, but also further optimizes the rejection process through the ingenious layout of the guide plate 5, reduces material waste, improves production efficiency and product quality, and is an indispensable high-efficiency rejection device on the modern particleboard production line.

[0042] Furthermore, it further includes a throwing roller 6 which is rotatably arranged on the frame 3 and is arranged in a number of sequentially inclined arrangements, and a fine screening roller 7 which is rotatably arranged on the frame 3 and is arranged in a number of arrangements. The fine screening roller 7 and the waste discharging member 4 are respectively arranged on both sides of the screening roller 1, and the throwing roller 6 is located above the fine screening roller 7 and the screening roller 1.

[0043] In this embodiment, a number of throwing rollers 6 arranged obliquely in sequence are designed. These throwing rollers 6 are also installed on the frame 3 and are located above the screening roller 1 and the fine screening roller 7. The oblique arrangement design of the throwing rollers 6 helps the uniform dispersion and transfer of materials at different stages, improving the processing efficiency. The fine screening roller 7 is also arranged on the frame 3 in the form of a number of rollers, and is respectively arranged on both sides of the waste discharging part 4 with respect to the screening roller 1. The function of the fine screening roller 7 is to conduct more meticulous grading and screening on the shavings after preliminary screening, and send the small and fine shavings into the conveyor belt as the surface layer of the particle board to ensure the surface quality of the shavings. Generally speaking, the addition of the throwing rollers 6 and the fine screening roller 7 not only optimizes the flow path of materials in the device for removing bent shavings, but also further refines the screening and grading process. Through its oblique arrangement, the throwing roller 6 effectively promotes the flow and distribution of materials, while the fine screening roller 7 conducts secondary treatment on the materials screened by the screening roller 1 to ensure the purity and size consistency of the shavings finally entering the production process, which is crucial for improving the finished product quality of the particle board. This series of designs jointly construct an efficient and precise shaving processing system, which is more suitable for large-scale and high-demand particle board production environments.

[0044] Furthermore, the surface of the throwing roller 6 is provided with throwing pieces 601. The throwing pieces 601 are in plate shape or column shape, and are arranged in a number of circumferences. When the throwing roller 6 rotates, the throwing pieces 601 on two throwing rollers 6 abut against each other or cancel the abutment; the surface of the fine screening roller 7 is evenly distributed with a number of rhombic protrusions, and the space between two adjacent fine screening rollers 7 is for the falling of shaving pieces.

[0045] In this embodiment, a number of plate-shaped throwing pieces 601 are assembled on the surface of the throwing roller 6. These throwing pieces 601 are evenly arranged along the circumference of the throwing roller 6. When the throwing roller 6 rotates, the throwing pieces 601 on adjacent throwing rollers 6 abut against each other or separate. Such a design can effectively stir and disperse the fed shavings, ensure the uniform distribution of materials, avoid stacking and blockage, and improve the uniformity and efficiency of subsequent screening. Among them, the plate-shaped throwing pieces 601 of the throwing roller 6 can also be in column shape to achieve the dispersion of materials. The surface of the fine screening roller 7 is specially designed with a number of rhombic protrusions, and these rhombic protrusions are evenly distributed on the surface of the fine screening roller 7. The rhombic protrusions not only increase the contact area with the materials, contribute to more thorough screening and separation of smaller-sized shaving pieces, but also form a channel for the smooth falling of qualified shaving pieces at the gap between two adjacent fine screening rollers 7, and the fine shavings are further screened out during this process, thereby improving the quality of the surface layer and the core layer of the particle board. In summary, the addition of these design details enables the entire device for removing bent shavings to more precisely control the material flow direction during the processing, improve the screening accuracy, ensure that the shaving pieces can pass through layers of screening and enter the next production process, which is of great significance for improving the final quality and production efficiency of the particle board.

[0046] Further, it also includes a squirrel-cage roller 8 which is rotatably arranged on the frame 3. A number of squirrel-cage rollers 8 are arranged in a row and are located below the fine sieve roller 7 and the screening roller 1.

[0047] In this embodiment, the squirrel-cage roller 8 is designed. A number of squirrel-cage rollers 8 are added to the device. These squirrel-cage rollers 8 are also designed to be rotatably arranged on the frame 3, but they are located below the fine sieve roller 7 and the screening roller 1. Such a layout indicates that the squirrel-cage roller 8 undertakes subsequent sorting and conveying tasks in the material processing process. The name of the squirrel-cage roller 8 comes from its structural characteristics. Usually, the surface of this type of roller is designed with a cage-like grille or protrusion structure, which can perform final sorting and guiding on the wood shavings screened by the fine sieve roller 7. During the rotation of the squirrel-cage roller 8, the qualified wood shavings under the fine sieve roller 7 can be effectively combed evenly, and at the same time, any possible remaining small debris can be removed to ensure the quality of the wood shavings finally entering the next process. The addition of the squirrel-cage roller 8 makes the entire process of removing bent wood shavings more complete and efficient. From the initial screening roller 1 removing bent wood shavings, to the further screening by the fine sieve roller 7, and then to the final sorting by the squirrel-cage roller 8, each step is to improve the accuracy and efficiency of material processing, reduce waste, and ensure the high-quality supply of raw materials in the particleboard production process. In summary, the introduction of the squirrel-cage roller 8 not only supplements the function of the device for removing bent wood shavings, but also improves the automation level and production efficiency of the entire production line, and is one of the key links to ensure the quality of the particleboard finished product.

[0048] Further, it also includes a conveyor belt which is arranged below the squirrel-cage roller 8 and is used to receive the wood shavings falling from the squirrel-cage roller 8.

[0049] In this embodiment, the conveyor belt is designed. A conveyor belt is installed below the device, and its position is exactly below the squirrel-cage roller 8. The purpose of this design is to efficiently and smoothly receive the qualified wood shavings falling after being processed by the squirrel-cage roller 8, ensuring that the materials can be continuously conveyed to the subsequent processing links. The use of the conveyor belt makes the entire process of removing bent wood shavings more automated and continuous. After the qualified wood shavings are subjected to multiple processes such as screening, sieving, and squirrel-cage sorting, they naturally fall onto the conveyor belt by gravity. The conveyor belt then starts and conveys these wood shavings to the next process, such as drying, mixing, hot pressing, etc., without manual intervention, greatly improving the production efficiency and reducing the labor intensity. The addition of the conveyor belt forms a closely connected operation chain with the previous screening roller 1, fine sieve roller 7, squirrel-cage roller 8 and other components. Each link is closely connected, not only optimizing the smoothness of material flow, but also ensuring the efficiency and accuracy of the operation of removing bent wood shavings, laying a solid foundation for the production of high-quality particleboard. In summary, the integration of the conveyor belt not only improves the material transmission system of the entire device for removing bent wood shavings, but also promotes the overall automation level of the production line, ensuring the continuity and efficiency of the production process.

[0050] Furthermore, it further includes a paving box 9, which is arranged on the frame 3 and has a blanking port 901 at the bottom. The throwing rollers 6 are arranged obliquely in sequence at the blanking port 901.

[0051] In this embodiment, the paving box 9 is designed. The paving box 9 is installed on the frame 3, and its bottom is designed with a blanking port 901. The function of the paving box 9 is to collect the raw materials discharged from the screening process. The design of the paving box 9 improves the environment during the particleboard paving process, which is beneficial to improving the working environment of workers and ensuring the health of workers.

[0052] Furthermore, it further includes a cover 10. The screening roller 1, the waste discharging part 4, the guide plate 5, the throwing rollers 6, the fine screening roller 7, the squirrel cage roller 8 and the paving box 9 are all arranged inside the cover 10.

[0053] In this embodiment, the cover 10 is designed to make the whole particleboard bending particle removing device more enclosed, safe and easy to maintain. The specific features are as follows: The covering of the cover 10: As a closed structure, the cover 10 encapsulates all the key components such as the screening roller 1, the waste discharging part 4, the guide plate 5, the throwing rollers 6, the fine screening roller 7, the squirrel cage roller 8 and the paving box 9 inside it. Such a design has the following important functions. Safety protection: The existence of the cover 10 effectively isolates the high-speed rotating mechanical components from the external environment, preventing operators from contacting the rotating components during the production process, reducing potential safety hazards and ensuring production safety. Dust control: During the particle processing process, a certain amount of wood chips and dust will be generated. The cover 10 can significantly reduce the diffusion of these particulate substances, helping to maintain a clean workshop environment. At the same time, in cooperation with the possibly installed dust removal system, it further improves the working environment quality. Noise suppression: The closed cover 10 also helps to reduce the noise generated by the equipment operation, providing a relatively quiet working environment for workers, meeting the environmental protection and employee health requirements of modern factories. Maintenance convenience: The design of the cover 10 usually considers a structure that is easy to open and close, facilitating regular equipment inspection, cleaning and maintenance operations, ensuring production efficiency and the long-term stable operation of the equipment. In summary, the integration of the cover 10 not only improves the safety and environmental protection of production operations, but also provides convenience for the maintenance management of the equipment. It is an indispensable part of the modern production line, ensuring the efficient, safe and sustainable operation of the particleboard bending particle removing device.

[0054] Furthermore, the cover 10 has a feeding port 1001, and the feeding port 1001 is located above the paving box 9.

[0055] In this embodiment, the cover 10 is provided with a feeding port 1001, and this feeding port 1001 is specially arranged directly above the paving box 9. Such a design ensures that the raw material particle flakes can be directly put in from the feeding port 1001 and smoothly enter the whole processing system.

[0056] Furthermore, the material removal notches 202 on two adjacent screening rollers 1 are symmetrically arranged.

[0057] In this embodiment, the symmetrically arranged material removal notches 202 ensure that no matter from which angle the wood chips pass through the screening roller 1, they will be treated with a consistent screening standard. This symmetric design reduces the uneven screening caused by position deviation, ensuring the accuracy and consistency of removing the bent wood chips. The symmetric layout enables the wood chips passing through the material removal interval 201 to be evenly stressed, avoiding material damage or screening errors caused by uneven stress, thus improving the efficiency of the removal process and the material removal effect. The symmetric design enhances the stability of the entire screening system in the mechanical structure, reduces vibration and noise during operation, extends the service life of the equipment, and at the same time improves the comfort of the production environment. When adjustment or maintenance of the material removal gap is required, the symmetric layout simplifies the operation process because only by adjusting the material removal notch 202 on one side can the consistency of the overall screening standard be ensured, reducing the maintenance cost and complexity. In summary, the design feature that the material removal notches 202 on two adjacent screening rollers 1 are symmetrically arranged not only optimizes the efficiency and accuracy of removing the bent wood chips, but also improves the overall stability of the equipment and the convenience of operation, which is one of the key elements for realizing high-efficiency and high-quality particleboard production.

[0058] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. A device for removing bent shavings from a particle board, used for removing bent shavings from shavings, characterized in that: include A screening roller (1), wherein a plurality of screening rollers (1) are arranged in sequence. A material picking piece (2), the material picking piece (2) being arranged on the screening roller (1), the material picking pieces (2) being a plurality and being arranged in sequence along the axial direction of the screening roller (1), a material picking gap (201) being formed between two adjacent material picking pieces (2), the material picking piece (2) extending into the material picking gap (201) on another adjacent screening roller (1), the material picking piece (2) having a material picking notch (202), the material picking notch (202) being one or more, and when being a plurality, being arranged in a circle in the circumferential direction of the material picking piece (2).

2. The device for removing bent particles from particleboard according to claim 1, characterized in that: A frame (3), wherein the screening roller (1) is rotatably arranged on the frame (3). A waste discharge member (4), wherein the waste discharge member (4) is arranged on the frame (3) and is located on one side of the screening roller (1). A guide plate (5), one end of the guide plate (5) being arranged on the waste discharge member (4), and the other end of the guide plate (5) extending into the material removal interval (201) and gradually rising to approach the removal screen roller (1).

3. The device for removing bent particles from particleboard according to claim 2, characterized in that: Also includes A throwing roller (6), wherein the throwing roller (6) is rotatably arranged on the frame (3), and is a plurality of throwing rollers (6) arranged in an inclined manner in sequence. A fine screen roller (7), wherein the fine screen roller (7) is rotatably arranged on the frame (3), and a plurality of the fine screen rollers (7) are arranged in an array, wherein the fine screen roller (7) and the waste discharge member (4) are respectively arranged on both sides of the screening roller (1), and the throwing roller (6) is located above the fine screen roller (7) and the screening roller (1).

4. The device for removing bent particles from particleboard according to claim 3, characterized in that: The surface of the throwing roller (6) has a throwing sheet (601), the throwing sheets (601) are plate-shaped or column-shaped, and are arranged in a plurality of circles. When the throwing roller (6) rotates, the throwing sheets (601) on two throwing rollers (6) abut against each other or cancel the abutment. The surface of the fine screen roller (7) has a plurality of prismatic protrusions evenly distributed, and the space between two adjacent fine screen rollers (7) is used for the falling of wood chips.

5. The device for removing bent particles from particleboard according to claim 3, characterized in that: Also includes A squirrel cage roller (8), the squirrel cage roller (8) being rotatably arranged on the frame (3), the squirrel cage roller (8) being arranged in a plurality of rows, and the squirrel cage roller (8) being located below the fine screen roller (7) and the screening roller (1).

6. The device for removing bent particles from particleboard according to claim 5, characterized in that: Also includes A conveyor belt, wherein the conveyor belt is arranged below the squirrel cage roller (8) and is used to receive wood shavings falling from the squirrel cage roller (8).

7. The device for removing bent particles from particleboard according to claim 5, characterized in that: Also includes A paving box (9), the paving box (9) is arranged on the frame (3), and has a material drop opening (901) at the bottom, and the throwing rollers (6) are arranged in sequence and tilted at the material drop opening (901).

8. The device for removing bent particles from particleboard according to claim 7, characterized in that: Also includes The cover body (10) is provided with the screening roller (1), the waste discharge member (4), the guide plate (5), the material throwing roller (6), the fine screening roller (7), the squirrel cage roller (8) and the laying box (9) all arranged in the cover body (10).

9. The device for removing bent particles from particleboard according to claim 8, characterized in that: The cover body (10) has a feed inlet (1001), and the feed inlet (1001) is located above the paving box (9).

10. The device for removing bent particles from particleboard according to claim 1, characterized in that: The material removing notches (202) on two adjacent screening rollers (1) are symmetrically arranged.

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