A waste material recycling device based on wood-plastic board production

Abstract

The application provides a waste recovery device based on wood-plastic board production, belonging to the technical field of waste recovery and treatment, comprising a support frame, a crushing mechanism and a cyclone generating assembly. The crushing mechanism is provided with a crushing cylinder, a crushing cavity, a baffle assembly, an arc-shaped filter plate, a crushing main shaft, a driving assembly, a movable cutter group and fixed blades. The driving assembly drives the crushing main shaft to rotate, and the movable cutter group and the fixed blades are staggered to cut the waste. The front end of the crushing main shaft is fixedly connected with a closed centrifugal impeller in the cyclone generating assembly, realizing synchronous driving by a single power source. The cyclone generating assembly generates high-pressure air, which is introduced into the crushing cavity along the tangential direction of the cylinder wall through the arc-shaped air outlet of the exhaust pipe to form a spiral wall-attached airflow, thereby sweeping the inner wall of the cavity and assisting the arc-shaped filter plate to forcibly screen and discharge the material. The application solves the problems of easy material accumulation on the inner wall of the crushing cavity, easy clogging of the filter screen and lack of auxiliary discharge means in the existing device.

Description

Technical Field

[0001] This invention relates to the field of waste recycling technology, and in particular to a waste recycling device based on wood-plastic composite board production. Background Technology

[0002] Wood-plastic composite (WPC) boards, a new type of composite material combining the processing properties of wood and the anti-corrosion properties of plastics, are widely used in furniture manufacturing, building decoration, and packaging and transportation. During their production and processing, a large amount of scrap, defective products, and cutting debris are inevitably generated. To reduce production costs and achieve resource recycling, waste recycling devices are typically used to crush these waste materials, transforming them into fine particles or powder that can be reused in production. Existing crushing devices for WPC waste recycling generally have a relatively simple structure, typically including a support frame, a crushing cylinder fixed to the support frame, a rotating cutter head assembly inside the cylinder, and fixed blades installed on the inner wall of the cylinder. The rotating cutter head drives the moving blades and fixed blades to interlock and shear, thus crushing the waste material. A filter screen is installed at the bottom of the cylinder to screen out qualified fine powder for final discharge.

[0003] However, the existing waste recycling devices described above have many insurmountable technical defects in actual use. First, the plastic components in wood-plastic composite boards are easily softened or even slightly melted under the frictional heat generated by high-speed cutting. Some of the softened material is thrown against the inner wall of the cylinder under centrifugal force and gradually adheres and accumulates. After long-term operation, the accumulated layer continues to thicken, which not only compresses the effective crushing space but also increases the rotational inertia of the main shaft, and in severe cases, even causes the rotor to jam. At the same time, the screen holes of the bottom filter screen are easily blocked by damp or softened debris. Qualified fine powder can only fall through the screen naturally by gravity without the external force to assist in sieving. When the processing volume is large, a material accumulation layer forms above the screen, and the discharge rate is much lower than the crushing rate, which limits the overall capacity of the machine and requires frequent shutdowns for manual cleaning, seriously affecting the continuity of production and operating efficiency. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is that the existing wood-plastic waste crushing device cannot simultaneously solve the problems of material accumulation on the inner wall of the cylinder and easy clogging of the screen leading to poor material discharge without adding an external power source.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a waste recycling device based on wood-plastic composite board production, comprising: Support frame; The pulverizing mechanism mounted on the support frame includes a pulverizing cylinder fixedly mounted on the top of the support frame. The pulverizing cylinder has a pulverizing chamber inside. A baffle assembly is mounted on the top of the pulverizing chamber. An arc-shaped filter plate is fixedly mounted on the bottom of the pulverizing chamber. A pulverizing main shaft is rotatably connected to the center of the pulverizing chamber. The rear end of the pulverizing main shaft penetrates the rear wall of the pulverizing cylinder and extends to its exterior, where a drive assembly is connected for transmission. A movable blade assembly is fixedly mounted on the outer surface of the pulverizing main shaft. Multiple sets of fixed blades are fixedly mounted on the bottom of the pulverizing chamber, on the upper surface of the arc-shaped filter plate, and on the side walls of the pulverizing chamber. The vortex generator assembly installed on the pulverizing cylinder includes a volute fixedly installed at the front end of the pulverizing cylinder, a closed centrifugal impeller rotatably connected inside the volute, an air inlet pipe installed at the lower right of the volute, a connecting pipe installed at the top of the volute, and an exhaust pipe fixedly connected to the output end of the connecting pipe extending into the pulverizing chamber.

[0008] As a preferred embodiment of the waste recycling device based on wood-plastic composite board production according to the present invention, the top and bottom of the crushing cylinder are respectively provided with a feed inlet and a discharge outlet.

[0009] As a preferred embodiment of the waste recycling device based on wood-plastic composite board production according to the present invention, the baffle assembly includes an arc-shaped baffle fixedly installed in the middle between the feed inlet and the crushing chamber, with the protruding end of the arc-shaped baffle facing upward, and the arc-shaped baffle, the arc-shaped filter plate and the side wall of the crushing chamber together forming a circular crushing space.

[0010] As a preferred embodiment of the waste recycling device based on wood-plastic composite board production according to the present invention, wherein: inclined baffles are symmetrically arranged on the left and right sides of the top of the arc-shaped baffle, the two inclined baffles are inclined from top to bottom, and the bottom ends of the two inclined baffles extend to the top of the arc-shaped baffle and cover its left and right side edges respectively.

[0011] As a preferred embodiment of the waste recycling device based on wood-plastic composite board production according to the present invention, a first feeding gap is left between the bottom end of the inclined baffle and the upper surface of the arc-shaped baffle, and a second feeding gap is left between the left and right side walls of the arc-shaped baffle and the side wall of the crushing chamber, and the crushed material falls onto the arc-shaped filter plate through the first feeding gap and the second feeding gap.

[0012] As a preferred embodiment of the waste recycling device based on wood-plastic composite board production according to the present invention, the movable blade assembly includes three triangular turntables fixedly installed on the outer surface of the crushing spindle and located inside the crushing chamber. The three triangular turntables are respectively installed at the front end, rear end and middle position of the crushing spindle, and the distance between two adjacent triangular turntables is equal.

[0013] As a preferred embodiment of the waste recycling device based on wood-plastic composite board production according to the present invention, three fixed rods are fixedly connected between each pair of adjacent triangular turntables. The three fixed rods are respectively set at the three corners of the corresponding triangular turntables. Each fixed rod is fixedly installed with a movable blade, and each movable blade and multiple sets of fixed blades are staggered along the circumference of the crushing main shaft.

[0014] As a preferred embodiment of the waste recycling device based on wood-plastic composite board production according to the present invention, the exhaust pipe is fixedly installed at the center of the bottom end of the arc-shaped baffle, and an arc-shaped air outlet is provided on the right side of the exhaust pipe. The arc of the arc-shaped air outlet is adapted to the arc of the arc-shaped baffle and the arc of the arc-shaped filter plate.

[0015] As a preferred embodiment of the waste recycling device based on wood-plastic composite board production according to the present invention, the driving component includes a servo motor fixedly installed at the bottom of the support frame, an active pulley fixedly connected to the output shaft of the servo motor, a track meshing with the outer surface of the active pulley, and a driven pulley meshing with the inner side of the other end of the track.

[0016] In a preferred embodiment of the waste recycling device based on wood-plastic composite board production according to the present invention, the rear end of the crushing main shaft is fixedly connected to the front wall of the driven pulley, and the front end of the crushing main shaft penetrates the outer wall of the volute and extends into its interior, where it is fixedly connected to the rear wall of the closed centrifugal impeller.

[0017] The beneficial effects of this invention are: This invention achieves synchronous driving of crushing and airflow generation by extending the front end of the crushing main shaft into the volute and fixing it to a closed centrifugal impeller, thus eliminating the need for an additional independent fan or air pump. Simultaneously, the arc-shaped exhaust port of the exhaust pipe is tangentially angled downwards along the inner wall of the crushing cylinder, causing high-pressure air to adhere tightly to the cylinder wall in a spiral shape and descend at high speed under the wall-attachment effect, forming a downward spiral wall-attachment air curtain. During its movement, this air curtain exerts continuous shearing and peeling action on the softened or molten wood-plastic composite material adhering to the inner wall of the crushing chamber, achieving thorough cleaning of the cylinder wall without dead angles. This effectively avoids problems such as compression of the crushing space, increased rotational inertia, and rotor jamming caused by the thickening of the material layer, significantly extending the continuous operating time of the equipment.

[0018] In this invention, when the spiral downward airflow reaches the bottom of the crushing chamber, a local vortex negative pressure zone is formed on the surface of the filter plate due to the obstruction of the arc-shaped filter plate and the abrupt change in the cross-sectional area of ​​the airflow channel. This negative pressure exerts a downward auxiliary suction force on the material accumulated on the arc-shaped filter plate, forcibly pressing the debris stuck in the mesh through the screen, while actively pushing qualified fine powder towards the mesh to complete the sieving. This significantly increases the fine powder discharge rate and effectively prevents the problems of poor discharge and limited overall machine capacity caused by screen blockage. Moreover, the airflow velocity changes synchronously with the spindle speed. When the processing volume increases, the cleaning force and auxiliary sieving suction force automatically increase, realizing a purely mechanical adaptive matching of air volume and material volume. No sensors or electronic control components are required, resulting in high reliability and low energy consumption. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a three-dimensional front view of the present invention; Figure 2 This is a three-dimensional orthographic sectional view of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a three-dimensional side sectional view of the present invention; Figure 5 This is a three-dimensional orthographic view of the volute portion of the present invention; Figure 6 This is a three-dimensional enlarged view of the swirl generation assembly of the present invention; Figure 7 This is a three-dimensional rear view of the present invention. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0023] Example Reference Figures 1-7 This invention provides a waste recycling device based on wood-plastic composite board production, including a support frame 100 as the mounting base. The support frame 100 provides a stable support foundation for the entire device, ensuring the accuracy and stability of the relative positions of each component during operation. A crushing cylinder 201 is fixedly installed at the top of the support frame 100. The crushing cylinder 201 has a crushing chamber 201a inside for containing waste and crushing it. The crushing chamber 201a serves as the core working space for waste recycling. Its top has an inlet 201b for feeding wood-plastic composite waste to be processed, and its bottom has an outlet 201c for discharging material that meets the particle size requirements after crushing.

[0024] A baffle assembly 202 is installed inside the top of the crushing chamber 201a. The baffle assembly 202 is used to guide the input waste material to accurately enter the crushing area and prevent the material from splashing and flowing back during the crushing process. Specifically, it includes an arc-shaped baffle 202a fixedly installed in the middle between the feed inlet 201b and the crushing chamber 201a. The protruding end of the arc-shaped baffle 202a is set upward, which can play a good guiding and dispersing role for the waste material falling from the feed inlet 201b, so that the material falls evenly into the subsequent crushing area. An arc-shaped filter plate 203 is fixedly installed at the bottom of the crushing chamber 201a. The arc-shaped filter plate 203 is used to screen the crushed material by particle size. It allows the fragments that reach the specified fineness to pass through its mesh and fall into the discharge port 201c for collection. The coarse particles that fail to pass through the screen are retained in the crushing chamber for further cutting. The arc-shaped baffle 202a, the arc-shaped filter plate 203 and the side wall of the crushing chamber 201a together form an approximately circular closed crushing space. This circular structure is conducive to the circulation and tumbling of the material in the chamber, increasing the contact opportunity between the material and the blades, thereby improving the crushing efficiency and uniformity. Two inclined baffles 202b are symmetrically arranged on the left and right sides of the top of the arc-shaped baffle 202a. The two inclined baffles 202b are inclined from top to bottom, and the bottom ends of the two inclined baffles 202b extend to the top of the arc-shaped baffle 202a and cover its left and right side edges. The flow guiding structure formed by the inclined baffles 202b and the arc-shaped baffle 202a can effectively gather the input waste material to the central area of ​​the crushing chamber, avoiding the material from directly hitting the side wall of the crushing chamber and causing rebound and splashing. At the same time, the inclined baffles 202b can also block and fall the material raised during high-speed rotation, preventing the insufficiently crushed coarse particles from flowing back out from the feed inlet 201b, ensuring that the material is always constrained in the crushing space for circulating crushing. A first feeding gap 202c is left between the bottom end of the inclined baffle 202b and the upper surface of the arc-shaped baffle 202a, and a second feeding gap 202d is left between the left and right side walls of the arc-shaped baffle 202a and the side wall of the crushing chamber 201a, ensuring that the waste material can slide smoothly from the feed inlet 201b into the crushing chamber 201a.

[0025] A crushing spindle 204 is rotatably connected at the center of the crushing chamber 201a. The crushing spindle 204 serves as the core of the power transmission of the entire crushing mechanism, and is used to transmit external driving force to the internal movable blade assembly to realize the cutting action. The rear end of the crushing spindle 204 penetrates the rear wall of the crushing cylinder 201 and extends to its exterior. A drive assembly 205 is connected to it for transmission. The drive assembly 205 provides rotational power to the crushing spindle 204. Specifically, it includes a servo motor 205a fixedly mounted on the bottom of the support frame 100. A drive pulley 205b is fixedly connected to the output shaft of the servo motor 205a. A track 205c is meshed with the outer surface of the drive pulley 205b. A driven pulley 205d is meshed with the inner side of the other end of the track 205c. The servo motor 205a transmits power to the crushing spindle 204 smoothly and efficiently through the belt drive mechanism composed of the drive pulley 205b, the track 205c, and the driven pulley 205d. The belt drive structure itself has a certain overload protection function. When the crushing chamber encounters an excessive load, the track can slip, thereby preventing the motor from burning out or the spindle from breaking, thus improving the safety of the whole machine. The rear end of the crushing main shaft 204 is fixedly connected to the front wall of the driven pulley 205d, thereby reliably introducing the rotational power of the servo motor 205a into the crushing chamber. The front end of the crushing main shaft 204 penetrates the outer wall of the volute 301 and extends into its interior, where it is fixedly connected to the rear wall of the closed centrifugal impeller 302. This achieves a dual-output effect where one main shaft simultaneously drives the crushing blade assembly and the cyclone generator assembly, simplifying the transmission structure and reducing the overall energy consumption of the machine.

[0026] A movable blade assembly 206 is fixedly installed on the outer surface of the crushing spindle 204. The movable blade assembly 206 rotates synchronously with the crushing spindle 204 at high speed to apply shearing force to the waste material in the crushing chamber 201a. Specifically, it includes three triangular turntables 206a fixedly installed on the outer surface of the crushing spindle 204 and located inside the crushing chamber 201a. The three triangular turntables 206a are respectively installed at the front end, rear end and middle of the crushing spindle 204, and the distance between two adjacent triangular turntables 206a is equal. The equidistant layout of the three turntables ensures that the cutting force is evenly distributed in all axial sections of the entire crushing area, avoiding local material accumulation or missed cutting. Three fixed rods 206b are fixedly connected between each pair of adjacent triangular turntables 206a. The three fixed rods 206b are respectively set at the three corners of the corresponding triangular turntables 206a. Each fixed rod 206b is fixedly mounted with a movable blade 206c. This triangular evenly distributed structure ensures that each movable blade 206c cuts the material once for every revolution of the crushing main shaft 204. Moreover, the three sets of blades cut in turn in sequence, which has the advantages of high cutting frequency and continuous and uniform impact force compared with single blade or double blade structure, effectively improving the cutting efficiency of a single rotation. Meanwhile, multiple sets of fixed blades 207 are fixedly installed on the bottom of the crushing chamber 201a, on the upper surface of the arc-shaped filter plate 203, and on the side wall of the crushing chamber 201a. The movable blades 206c and the multiple sets of fixed blades 207 are arranged alternately along the circumference of the crushing main shaft 204. When the movable blade group 206 rotates at high speed, a shearing relationship similar to scissors is formed between the movable blades 206c and the fixed blades 207. The high-speed rotation of the movable blades 206c and the static positioning of the fixed blades 207 work together to make the material bear strong shearing and tearing action at the moment when the two pass through each other, so as to achieve rapid and effective crushing of wood-plastic waste. At the same time, this staggered layout can also form a certain material self-holding space between the blades, so that large pieces of waste are confined in this space until they are completely shredded, further improving the thoroughness and uniformity of crushing.

[0027] A vortex generator assembly 300 is also installed at the front end of the crushing cylinder 201. This vortex generator assembly 300 is used to generate a high-pressure airflow using the rotational power of the crushing main shaft 204 and guide it into the crushing chamber 201a to form a spiral airflow for auxiliary cleaning and material discharge. The vortex generator assembly 300 specifically includes a volute 301 fixedly installed at the front end of the crushing cylinder 201. A closed centrifugal impeller 302 is rotatably connected inside the volute 301. The rear wall of the closed centrifugal impeller 302 is fixedly connected to the front end of the crushing main shaft 204. Therefore, when the servo motor 205a drives the crushing main shaft 204 to rotate, the closed centrifugal impeller 302 rotates synchronously, accelerating and pressurizing the air in the volute 301. This allows the vortex generator assembly to work normally without the need for an additional independent power source, achieving pure mechanical linkage. An air inlet pipe 303 is installed on the lower right side of the volute 301. The air inlet pipe 303 is used to introduce outside air into the volute 301 for pressurization by the closed centrifugal impeller 302. A connecting pipe 304 is installed at the top of the volute 301. The high-pressure air after being pressurized by the closed centrifugal impeller 302 is discharged through the connecting pipe 304. The output end of the connecting pipe 304 extends into the pulverizing chamber 201a and is fixedly connected to an exhaust pipe 305. The exhaust pipe 305 is fixedly installed at the center of the bottom end of the arc-shaped baffle 202a. An arc-shaped air outlet 305a is provided on the right side of the exhaust pipe 305. The curvature of the arc-shaped air outlet 305a is adapted to the curvature of the arc-shaped baffle 202a and the arc-shaped filter plate 203, so that the high-pressure air can flow along the inner wall of the crushing chamber 201a when it is discharged, avoiding the airflow from directly impacting the front of the movable blade assembly 206 and interfering with the cutting action. At the same time, the arc-shaped design of the arc-shaped air outlet 305a can also make the airflow diffuse evenly along the cylinder wall, forming a complete airflow coverage network, ensuring that every corner of the inner wall of the entire circular crushing space can be effectively cleaned by the airflow, preventing the formation of cleaning dead corners. When the high-pressure airflow is injected into the crushing chamber 201a through the arc-shaped air outlet 305a, the arc-shaped air outlet 305a is arranged tangentially downward along the inner wall of the crushing cylinder 201, and its arc direction is consistent with the curvature of the inner wall of the crushing chamber 201a. Under the action of the wall adhesion effect, the high-pressure airflow adheres closely to the inner wall of the crushing chamber 201a and descends at high speed in a spiral shape, forming a spiral wall adhesion air curtain from top to bottom. As the spiral air curtain travels along the cylinder wall, it applies a continuous shearing and peeling force to the softened or molten wood-plastic material adhering to the inner wall of the crushing chamber 201a, removing it from the cylinder wall and entraining it into the crushing space to participate in the cutting again, thus achieving a thorough cleaning of the cylinder wall without dead angles.When the spiral downward airflow reaches the bottom area of ​​the grinding chamber 201a, the airflow speed suddenly increases due to the obstruction of the arc-shaped filter plate 203 and the sudden change in cross-sectional area, generating a local vortex negative pressure effect. This negative pressure vortex applies a downward auxiliary suction force to the material accumulated on the arc-shaped filter plate 203, forcibly pressing the debris stuck in the mesh through the screen. At the same time, it actively "pushes" the fine powder that was originally difficult to overcome the resistance of the screen due to its own gravity through the mesh, greatly accelerating the efficiency of qualified fine powder passing through the arc-shaped filter plate 203 and effectively preventing screen blockage.

[0028] The entire airflow process relies entirely on a single drive of the crushing spindle 204, eliminating the need for an additional independent fan or compressed air source. The purely mechanical structure achieves adaptive linkage between airflow velocity and spindle speed: when the servo motor 205a accelerates and the crushing spindle 204 speed increases, the air supply of the closed centrifugal impeller 302 increases synchronously, automatically enhancing the cleaning force and auxiliary sieving suction of the spiral downward airflow. This perfectly matches the increased cleaning and discharge requirements under high-volume processing conditions due to increased material accumulation on the cylinder wall and increased screen load. Conversely, when the crushing spindle 204 speed decreases, the air supply decreases synchronously, preventing excessive airflow that could cause material suspension. This achieves a natural adaptive match between airflow and material volume, significantly reducing equipment energy consumption and improving overall machine stability.

[0029] In summary, this embodiment, through the coordinated operation of the support frame 100, the crushing mechanism 200, and the cyclone generator assembly 300, utilizes a single crushing spindle 204 to simultaneously drive the movable blade assembly 206 to efficiently cut and crush wood-plastic waste. Simultaneously, it drives the closed centrifugal impeller 302 to generate a spiral wall-attached airflow to thoroughly clean the inner wall of the crushing chamber 201a and assist in screening and discharging the material through the arc-shaped filter plate 203. This effectively solves the technical problems of material accumulation on the cylinder wall and screen blockage in existing wood-plastic waste recycling devices. Moreover, the entire process requires no external control system or additional power source, and the pure mechanical linkage is reliable and efficient, significantly improving the continuous operation capability and production efficiency of waste recycling.

[0030] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0031] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0032] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0033] 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 it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A waste recycling device based on wood-plastic composite board production, characterized in that: include, Support frame (100); The pulverizing mechanism (200) mounted on the support frame (100) includes a pulverizing cylinder (201) fixedly mounted on the top of the support frame (100). The pulverizing cylinder (201) has a pulverizing chamber (201a) inside. A baffle assembly (202) is mounted on the top of the pulverizing chamber (201a). An arc-shaped filter plate (203) is fixedly mounted on the bottom of the pulverizing chamber (201a). A pulverizing spindle (204) is rotatably connected to the center of the pulverizing chamber (201a). The rear end of the pulverizing spindle (204) penetrates the rear wall of the pulverizing cylinder (201) and extends to its exterior, where it is connected to a drive assembly (205). A movable blade assembly (206) is fixedly mounted on the outer surface of the pulverizing spindle (204). Multiple sets of fixed blades (207) are fixedly mounted on the bottom of the pulverizing chamber (201a), the upper surface of the arc-shaped filter plate (203), and the side wall of the pulverizing chamber (201a). The vortex generator assembly (300) installed on the pulverizing cylinder (201) includes a volute (301) fixedly installed at the front end of the pulverizing cylinder (201), a closed centrifugal impeller (302) rotatably connected inside the volute (301), an air inlet pipe (303) installed at the lower right of the volute (301), a connecting pipe (304) installed at the top of the volute (301), and an exhaust pipe (305) fixedly connected to the output end of the connecting pipe (304) extending into the pulverizing chamber (201a).

2. The waste recycling device based on wood-plastic composite board production as described in claim 1, characterized in that: The top and bottom of the crushing cylinder (201) are respectively provided with a feed inlet (201b) and a discharge outlet (201c).

3. The waste recycling device based on wood-plastic composite board production as described in claim 2, characterized in that: The baffle assembly (202) includes an arc-shaped baffle (202a) fixedly installed in the middle between the feed inlet (201b) and the crushing chamber (201a). The protruding end of the arc-shaped baffle (202a) is arranged facing upward. The arc-shaped baffle (202a), the arc-shaped filter plate (203), and the side wall of the crushing chamber (201a) together enclose a circular crushing space.

4. The waste recycling device based on wood-plastic composite board production as described in claim 3, characterized in that: The top of the arc-shaped baffle (202a) is symmetrically provided with inclined baffles (202b) on the left and right sides. The two inclined baffles (202b) are inclined from top to bottom, and the bottom ends of the two inclined baffles (202b) extend to the top of the arc-shaped baffle (202a) and cover its left and right side edges.

5. The waste recycling device based on wood-plastic composite board production as described in claim 4, characterized in that: A first feeding gap (202c) is left between the bottom end of the inclined baffle (202b) and the upper surface of the arc-shaped baffle (202a), and a second feeding gap (202d) is left between the left and right side walls of the arc-shaped baffle (202a) and the side wall of the crushing chamber (201a). The crushed material falls onto the arc-shaped filter plate (203) through the first feeding gap (202c) and the second feeding gap (202d).

6. The waste recycling device based on wood-plastic composite board production as described in claim 5, characterized in that: The movable blade assembly (206) includes three triangular turntables (206a) fixedly installed on the outer surface of the crushing spindle (204) and located inside the crushing chamber (201a). The three triangular turntables (206a) are respectively installed at the front end, rear end and middle position of the crushing spindle (204), and the distance between two adjacent triangular turntables (206a) is equal.

7. The waste recycling device based on wood-plastic composite board production as described in claim 6, characterized in that: Three fixed rods (206b) are fixedly connected between each pair of adjacent triangular turntables (206a). The three fixed rods (206b) are respectively set at the three corners of the corresponding triangular turntables (206a). Each fixed rod (206b) is fixedly mounted with a movable blade (206c), and each movable blade (206c) and multiple sets of fixed blades (207) are staggered along the circumference of the crushing main shaft (204).

8. The waste recycling device based on wood-plastic composite board production as described in claim 7, characterized in that: The exhaust pipe (305) is fixedly installed at the center of the bottom end of the arc-shaped baffle (202a). An arc-shaped air outlet (305a) is provided on the right side of the exhaust pipe (305). The arc of the arc-shaped air outlet (305a) is adapted to the arc of the arc-shaped baffle (202a) and the arc of the arc-shaped filter plate (203).

9. The waste recycling device based on wood-plastic composite board production as described in claim 8, characterized in that: The drive assembly (205) includes a servo motor (205a) fixedly mounted on the bottom of the support frame (100). A drive pulley (205b) is fixedly connected to the output shaft of the servo motor (205a). A track (205c) is meshed with the outer surface of the drive pulley (205b). A driven pulley (205d) is meshed with the inner side of the other end of the track (205c).

10. The waste recycling device based on wood-plastic composite board production as described in claim 9, characterized in that: The rear end of the crushing main shaft (204) is fixedly connected to the front wall of the driven pulley (205d), and the front end of the crushing main shaft (204) penetrates the outer wall of the volute (301) and extends into its interior to be fixedly connected to the rear wall of the closed centrifugal impeller (302).

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