Wood furniture plate material leftover recycling processing device

Abstract

The utility model relates to timber processing equipment technical field, specifically disclose a kind of wooden furniture board material surplus material recycling and reusing processing device, comprising: rack, pretreatment mechanism, crushing mechanism and impurity separation mechanism, preliminary classification is carried out according to surplus material size by the cooperation setting of screening board and vibration assembly, so that different specifications of surplus material sequentially enters crushing mechanism, avoid the impact load caused by large block material to crushing roller, the accurate control of crushing gap is realized between main crushing roller and vice crushing roller through gap adjusting assembly, so as to obtain the crushing product with more concentrated particle size distribution, winnowing passage separates light dust and wooden chippings using airflow density difference, magnetic separation drum effectively adsorbs iron foreign matter mixed in material, dust hood synchronously collects fugitive dust, realizes the integrated operation of crushing, sorting and dust removal, significantly improves wooden surplus material processing efficiency and secondary material quality.

Description

Technical Field

[0001] This utility model relates to the technical field of wood processing equipment, specifically to a device for recycling and reusing leftover wood furniture boards. Background Technology

[0002] The manufacturing process of wooden furniture generates a large amount of leftover materials, including scraps, cutting waste, and defective products. If these leftover materials are not effectively processed, they will not only occupy storage space but may also cause resource waste and environmental pollution. At present, some companies use manual sorting and simple crushing to preliminarily process the leftover materials so that they can be used for the production of low-value-added products such as fiberboard or fuel pellets. This kind of processing method has achieved material reuse to a certain extent.

[0003] However, in actual operation, there is a lack of targeted pretreatment methods for waste materials of different sizes, moisture contents and surface attachments, resulting in unstable crushing efficiency and poor uniformity of particle size of the obtained material. In addition, existing processing devices usually do not integrate dust removal or impurity separation functions, which easily generate dust pollution during the crushing process. At the same time, it is difficult to effectively remove foreign objects such as metal nails and plastic veneers, affecting the purity of recycled materials and subsequent processing performance. Therefore, there is still room for further optimization in existing technologies in terms of waste material classification and pretreatment, crushing particle size control and synergistic removal of impurities. To this end, we propose a waste material recycling and reuse processing device for wood furniture boards. Utility Model Content

[0004] The purpose of this utility model is to provide a recycling and reuse device for wood furniture board scraps, in order to solve the problems mentioned in the background art, such as the lack of targeted pretreatment methods for scraps of different sizes, moisture contents and surface attachments, which leads to unstable crushing efficiency and poor uniformity of particle size of the obtained material. In addition, existing processing devices usually do not integrate dust removal or impurity separation functions, which easily generate dust pollution during the crushing process, and it is difficult to effectively remove foreign objects such as metal nails and plastic veneers, affecting the purity of recycled materials and subsequent processing performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a recycling and reuse device for leftover wood furniture boards, comprising: a frame, a pretreatment mechanism, a crushing mechanism, and an impurity separation mechanism, wherein: the pretreatment mechanism is installed on the upper part of the frame and includes a feeding hopper, a screening plate, a vibration assembly, and a humidity sensing probe; the feeding hopper is fixedly connected to the top of the frame; the screening plate is inclinedly arranged below the feeding hopper, with its high end connected to the bottom of the feeding hopper and its low end extending to the inlet of the crushing mechanism; the surface of the screening plate has screen holes with increasing apertures; the vibration assembly includes an eccentric wheel, a drive shaft, and a support spring; the eccentric wheel is fixedly sleeved on the outer wall of the drive shaft; one end of the drive shaft is connected to a drive motor, and the other end is connected to the frame through a bearing seat; both ends of the support spring are fixedly connected to the bottom of the screening plate and the inner wall of the frame, respectively; and the humidity sensing probe is embedded in the upper surface of the screening plate. The crushing mechanism is located in the middle of the frame and includes a crushing chamber, a main crushing roller, an auxiliary crushing roller, and a gap adjustment component. The top of the crushing chamber is connected to the bottom of the screening plate, and the bottom is provided with a discharge port. The main crushing roller and the auxiliary crushing roller are arranged parallel to each other in the crushing chamber. The outer walls of both rollers are provided with staggered crushing teeth. The main crushing roller is driven by a first reduction motor. The auxiliary crushing roller is slidably connected to the inner wall of the crushing chamber through a sliding bearing seat. The gap adjustment component includes an adjusting screw, a guide rail, and a limit stop. One end of the adjusting screw is threadedly connected to the sliding bearing seat, and the other end is provided with a handwheel. The guide rail is fixed to the inner wall of the crushing chamber, and the sliding bearing seat is slidably engaged with the guide rail. The limit stop is fixed to the end of the guide rail. The impurity separation mechanism is located below the crushing mechanism and includes an air separation channel, a magnetic separation drum, and a dust collection hood. The upper end of the air separation channel is connected to the discharge port of the crushing chamber, and the lower end is divided into a light material outlet and a heavy material outlet. A blower interface is provided on the side wall. The magnetic separation drum is rotatably located at the heavy material outlet. It has a permanent magnet inside and a non-magnetic stainless steel layer on the outer wall. It is driven by a second geared motor. The dust collection hood is located above the air separation channel and has a dust discharge pipe at the top.

[0006] The screening plate includes a first screening section, a second screening section, and a third screening section. The first screening section is close to the feed hopper and has a screen aperture of 5 mm. The second screening section is located in the middle and has a screen aperture of 10 mm. The third screening section is close to the crushing mechanism and has a screen aperture of 15 mm. Guide ribs are provided between each screening section.

[0007] The crushing teeth are truncated cones with a height of 20 mm and a bottom diameter of 12 mm. The distance between adjacent crushing teeth is 8 mm, and the crushing teeth of the main crushing roller and the auxiliary crushing roller mesh with each other.

[0008] The gap adjustment component also includes a dial, which is fixedly connected to the outer wall of the crushing chamber. A pointer is provided on the outer wall of the adjusting screw, and the pointer and the dial work together to display the displacement of the auxiliary crushing roller.

[0009] The air separation channel is equipped with a guide plate, which is fixed at an angle of 30 degrees to the inner wall of the air separation channel.

[0010] The inner wall of the dust collection hood is lined with a layer of sound-absorbing cotton.

[0011] The bottom of the frame is equipped with casters and support feet. The casters have a self-locking device, and the support feet are connected to the frame by threads.

[0012] This utility model has at least the following beneficial effects:

[0013] This waste wood furniture board recycling and reuse device uses a combination of screening plates and vibration components to initially classify the waste materials according to their size, allowing different sizes of waste materials to enter the crushing mechanism sequentially. This avoids large pieces of material from impacting the crushing rollers. At the same time, a humidity sensor probe can provide real-time feedback on the material status, providing a basis for subsequent process parameter adjustments. The gap between the main crushing roller and the auxiliary crushing roller is precisely controlled through a gap adjustment component, resulting in crushed products with a more concentrated particle size distribution. The air separation channel uses the difference in airflow density to separate light dust from wood chips, while the magnetic separation roller effectively adsorbs iron foreign objects mixed in the material. The dust collection hood collects the scattered dust simultaneously, realizing an integrated operation of crushing, sorting, and dust removal. The overall structure is compact, and all mechanisms work together to significantly improve the efficiency of wood waste processing and the quality of recycled materials. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the frame structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the magnetic separator drum structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the air separation channel structure of this utility model;

[0018] Figure 5 This is a cross-sectional view of the feed hopper structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the feed hopper structure of this utility model;

[0020] Figure 7 This is a schematic diagram of the main crushing roller structure of this utility model;

[0021] Figure 8 This is a schematic diagram of the screening plate structure of this utility model;

[0022] Figure 9 This is a schematic diagram of the vibration component structure of this utility model.

[0023] In the diagram: 1. Frame; 2. Feed hopper; 3. Screening plate; 4. Vibration assembly; 5. Crushing chamber; 6. Main crushing roller; 7. Auxiliary crushing roller; 8. Air separation channel; 9. Magnetic separation drum; 10. Dust collection hood. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 9 This utility model provides a technical solution: a recycling and reuse device for leftover wood furniture boards. The device is installed on a frame 1 and is used to classify, crush, and remove impurities from various leftover materials generated during the production of wood furniture. The frame 1 is a frame structure welded from steel profiles. It is equipped with casters and support feet at the bottom. The casters have self-locking devices. The support feet are connected to the frame 1 by threads and are used to adjust the overall level of the device. A pre-treatment mechanism is fixedly installed on the upper part of the frame 1, a crushing mechanism is installed in the middle, and an impurity separation mechanism is configured at the bottom. The three are arranged in sequence along the material flow direction to form a continuous processing flow.

[0026] The pretreatment mechanism includes a feed hopper 2, a screening plate 3, a vibration assembly 4, and a humidity sensor. The feed hopper 2 is fixedly connected to the top of the frame 1, and its inner wall is lined with a wear-resistant liner made of high manganese steel with a thickness of eight millimeters to resist friction and wear of wood residue during its fall. The screening plate 3 is inclinedly positioned below the feed hopper 2, with its high end connected to the bottom of the feed hopper 2 and its low end extending to the inlet of the crushing mechanism. The surface of the screening plate 3 has multiple screen holes with increasing apertures, divided into a first screening zone, a second screening zone, and a third screening zone. The first screening zone is close to the feed hopper 2 with a screen hole diameter of five millimeters, the second screening zone is located in the middle with a screen hole diameter of ten millimeters, and the third screening zone is close to the crushing mechanism with a screen hole diameter of fifteen millimeters. There are guide ridges between each screening zone to guide residue of different particle sizes to fall into the corresponding area or continue to be conveyed forward. The humidity sensor is embedded in the upper surface of the screening plate 3 to detect the surface humidity of the residue and transmit the signal to an external monitoring system.

[0027] The vibration assembly 4 includes an eccentric wheel, a drive shaft, and a support spring. The eccentric wheel is fixedly sleeved on the outer wall of the drive shaft. One end of the drive shaft is connected to the output end of the drive motor, and the other end is connected to the frame 1 through a bearing seat. The two ends of the support spring are fixedly connected to the bottom of the screening plate 3 and the inner wall of the frame 1, respectively. When the drive motor starts, the drive shaft drives the eccentric wheel to rotate, generating periodic vibration, which causes the screening plate 3 to continuously shake under the elastic action of the support spring. This causes the residual material to roll on the screening plate 3 and be classified according to size. Fine particles pass through the corresponding screen holes and fall into the collection area below, while larger pieces of material slide down the screening plate 3 to the inlet of the crushing mechanism.

[0028] The crushing mechanism includes a crushing chamber 5, a main crushing roller 6, an auxiliary crushing roller 7, and a gap adjustment assembly. The crushing chamber 5 is a box-shaped structure that runs vertically through the crushing chamber. Its top is connected to the bottom of the screening plate 3, and a discharge port is provided at the bottom. The inner wall of the crushing chamber 5 is provided with a removable protective liner. The protective liner is connected to the crushing chamber 5 by bolts for easy replacement and maintenance. The main crushing roller 6 and the auxiliary crushing roller 7 are arranged in parallel inside the crushing chamber 5. Both of them have staggered crushing teeth on their outer walls. The crushing teeth are truncated cone-shaped, with a height of 20 mm and a bottom diameter of 12 mm. The distance between adjacent crushing teeth is 8 mm. The two ends of the main crushing roller 6 are rotatably connected to the side wall of the crushing chamber 5 through bearings and are driven to rotate by a first reduction motor. The two ends of the auxiliary crushing roller 7 are slidably connected to the inner wall of the crushing chamber 5 through sliding bearing seats.

[0029] The gap adjustment assembly includes an adjusting screw, a guide rail, a limit stop, and a dial. One end of the adjusting screw passes through the side wall of the crushing chamber 5 and is threadedly connected to the sliding bearing seat of the auxiliary crushing roller 7. The other end is equipped with a handwheel. The guide rail is fixedly connected to the inner wall of the crushing chamber 5. The sliding bearing seat slides in cooperation with the guide rail to ensure that the auxiliary crushing roller 7 moves only in the horizontal direction. The limit stop is fixedly connected to the end of the guide rail to limit the maximum travel of the auxiliary crushing roller 7. The dial is fixedly connected to the outer wall of the crushing chamber 5. A pointer is provided on the outer wall of the adjusting screw. The pointer cooperates with the dial to display the displacement of the auxiliary crushing roller 7, thereby achieving precise control of the crushing gap between the main crushing roller 6 and the auxiliary crushing roller 7. When it is necessary to adjust the crushing particle size, the operator turns the handwheel, drives the adjusting screw to rotate, pushes the sliding bearing seat to move along the guide rail, and thus changes the position of the auxiliary crushing roller 7, so that the meshing gap between the two crushing rollers changes to adapt to the crushing requirements of different specifications of waste material.

[0030] The impurity separation mechanism includes an air classifier channel 8, a magnetic separator drum 9, and a dust collection hood 10. The air classifier channel 8 is an inclined rectangular pipe, with its upper end connected to the discharge port of the crushing chamber 5, and its lower end divided into a light material outlet and a heavy material outlet. A blower interface is provided on the side wall of the air classifier channel 8, through which an external blower supplies airflow into the air classifier channel 8. A guide plate is installed inside the air classifier channel 8, inclined and fixed to the inner wall of the air classifier channel 8 at an angle of 30 degrees, used to guide the airflow direction and prolong the residence time of the material in the air classifier channel 8. When the crushed material enters the air classifier channel 8, under the action of the airflow, the less dense wood chips are blown towards the light material outlet and discharged, while the denser heavy impurities such as metals and stones fall into the heavy material outlet due to gravity.

[0031] The magnetic separator 9 is rotatably mounted at the outlet of the heavy material. It has a permanent magnet inside and a non-magnetic stainless steel layer on the outer wall. The magnetic separator 9 is driven to rotate by a second geared motor at a speed of 60 revolutions per minute. The surface linear velocity is matched with the falling speed of the material at the outlet of the heavy material. When the heavy material containing ferrous foreign matter passes through the surface of the magnetic separator 9, the ferrous particles are attracted by the permanent magnet and automatically fall off after rotating with the magnetic separator 9 to the area away from the magnetic field, thus achieving effective separation of ferrous impurities.

[0032] The dust collection hood 10 is installed above the air separation channel 8. The top of the hood is equipped with a dust discharge pipe, which is connected to the external dust removal equipment. The inner wall of the dust collection hood 10 is equipped with a sound-absorbing cotton layer to reduce the noise generated during the air separation process. During the air separation operation, some dust may escape from the air separation channel 8. The dust collection hood 10 collects this dust through negative pressure suction and transports it to the external dust removal equipment through the dust discharge pipe to prevent environmental pollution.

[0033] In actual operation, the leftover wood furniture boards to be processed are first fed into the feed hopper 2, and after being buffered by the wear-resistant liner, they fall into the screening plate 3. After the vibration component 4 is started, the screening plate 3 generates continuous vibration, causing the leftover materials to roll forward on the screening plate 3 and pass through the screen holes of different diameters according to their size. Particles smaller than five millimeters fall directly into the collection area below, particles of five to ten millimeters pass through the first screening section and fall into the second screening section for further screening, particles of ten to fifteen millimeters pass through the second screening section and enter the third screening section, and blocky leftover materials larger than fifteen millimeters slide down the screening plate 3 to the inlet of the crushing chamber 5. The humidity sensing probe monitors the surface humidity of the leftover materials in real time and feeds the data back to the control system for reference of subsequent process parameters.

[0034] The remaining material entering the crushing chamber 5 is squeezed and sheared by the meshing crushing teeth between the main crushing roller 6 and the auxiliary crushing roller 7, and crushed into fragments of the required particle size. By adjusting the gap adjustment component, the particle size distribution of the crushed product can be precisely controlled. The crushed material falls from the bottom outlet of the crushing chamber 5 into the air separation channel 8. Under the action of the airflow provided by the blower, the light wood chips are blown to the light material outlet, while the heavy impurities fall into the heavy material outlet by gravity. During the fall, the heavy material passes through the magnetic separator 9, where the mixed iron foreign objects are adsorbed and separated. At the same time, the dust collection hood 10 effectively captures the dust generated during the air separation process to ensure a clean working environment.

[0035] The entire device has a compact structure and all mechanisms work together to achieve fully automated processing of wood waste from feeding, screening, crushing to impurity separation, which significantly improves the uniformity and purity of recycled materials and meets the requirements of subsequent processing and utilization.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for recycling and reusing leftover wood furniture boards, comprising: The machine includes a frame, a pretreatment mechanism, a crushing mechanism, and an impurity separation mechanism. The pretreatment mechanism, mounted on the upper part of the frame, includes a feed hopper, a screening plate, a vibration assembly, and a humidity sensor. The feed hopper is fixedly connected to the top of the frame. The screening plate is inclined below the feed hopper, with its high end connected to the bottom of the feed hopper and its low end extending to the inlet of the crushing mechanism. The surface of the screening plate has screen holes with increasing aperture sizes. The vibration assembly includes an eccentric wheel, a drive shaft, and a support spring. The eccentric wheel is fixedly sleeved on the outer wall of the drive shaft. One end of the drive shaft is connected to a drive motor, and the other end is connected to the frame via a bearing seat. Both ends of the support spring are fixedly connected to the bottom of the screening plate and the inner wall of the frame, respectively. The humidity sensor is embedded in the upper surface of the screening plate. The feature is that it further includes: the crushing mechanism is located in the middle of the frame, including a crushing chamber, a main crushing roller, an auxiliary crushing roller and a gap adjustment component. The top of the crushing chamber is connected to the bottom of the screening plate, and the bottom is provided with a discharge port. The main crushing roller and the auxiliary crushing roller are arranged parallel to each other in the crushing chamber. The outer walls of both rollers are provided with staggered crushing teeth. The main crushing roller is driven by a first reduction motor. The auxiliary crushing roller is slidably connected to the inner wall of the crushing chamber through a sliding bearing seat. The gap adjustment component includes an adjusting screw, a guide rail and a limit stop. One end of the adjusting screw is threadedly connected to the sliding bearing seat, and the other end is provided with a handwheel. The guide rail is fixed to the inner wall of the crushing chamber. The sliding bearing seat is slidably engaged with the guide rail. The limit stop is fixed to the end of the guide rail. The impurity separation mechanism is located below the crushing mechanism and includes an air separation channel, a magnetic separation drum, and a dust collection hood. The upper end of the air separation channel is connected to the discharge port of the crushing chamber, and the lower end is divided into a light material outlet and a heavy material outlet. A blower interface is provided on the side wall. The magnetic separation drum is rotatably located at the heavy material outlet. It has a permanent magnet inside and is covered with a non-magnetic stainless steel layer on the outer wall. It is driven by a second geared motor. The dust collection hood is located above the air separation channel and has a dust discharge pipe at the top.

2. The device for recycling and reusing leftover wood furniture boards according to claim 1, characterized in that: The screening plate includes a first screening section, a second screening section, and a third screening section. The first screening section is close to the feed hopper and has a screen aperture of 5 mm. The second screening section is located in the middle and has a screen aperture of 10 mm. The third screening section is close to the crushing mechanism and has a screen aperture of 15 mm. Guide ribs are provided between each screening section.

3. The device for recycling and reusing leftover wood furniture boards according to claim 1, characterized in that: The crushing teeth are truncated cones with a height of 20 mm and a bottom diameter of 12 mm. The distance between adjacent crushing teeth is 8 mm, and the crushing teeth of the main crushing roller and the auxiliary crushing roller mesh with each other.

4. The device for recycling and reusing leftover wood furniture boards according to claim 1, characterized in that: The gap adjustment assembly also includes a dial, which is fixedly connected to the outer wall of the crushing chamber. A pointer is provided on the outer wall of the adjusting screw, and the pointer cooperates with the dial to display the displacement of the auxiliary crushing roller.

5. The device for recycling and reusing leftover wood furniture boards according to claim 1, characterized in that: The air separation channel is equipped with a guide plate, which is fixed at an angle of 30 degrees to the inner wall of the air separation channel.

6. The device for recycling and reusing leftover wood furniture boards according to claim 1, characterized in that: The inner wall of the dust collection hood is provided with a layer of sound-absorbing cotton.

7. The device for recycling and reusing leftover wood furniture boards according to claim 1, characterized in that: The bottom of the frame is equipped with casters and support feet. The casters have a self-locking device, and the support feet are connected to the frame by threads.

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