An inspection device for wood-plastic sound absorption board processing

Abstract

The application discloses a kind of for wood plastic sound absorption board processing inspection device, including base, controller and two supports, the controller is installed on the upper surface front end of base, two described supports are respectively installed on the upper surface left and right ends of base, support is supported to wood plastic sound absorption board, the upper surface rear side center position of base is equipped with pressurizing mechanism, pressurizing mechanism is pressed to wood plastic sound absorption board, as compression test power, the upper surface of base is equipped with bending detection mechanism.Real compression data corresponding to pressurizing pressure can be obtained without manual intervention, which significantly improves detection accuracy and reliability, providing key technical support for ensuring the production quality of wood plastic sound absorption board;It can comprehensively evaluate the core performance of wood plastic sound absorption board, provide scientific basis for the optimization and adjustment of raw material ratio in the production process, help enterprises to accurately research and develop and produce products that meet the needs of different application occasions, widen the application range of wood plastic sound absorption board, and perfect its performance detection system.

Description

Technical Field

[0001] This invention relates to the field of wood-plastic composite sound-absorbing board testing technology, specifically to an inspection device for processing wood-plastic composite sound-absorbing boards. Background Technology

[0002] Eco-friendly wood acoustic panels (also known as wood-plastic composite acoustic panels) are a new type of environmentally friendly sound-absorbing material made primarily from wood powder and PVC. They combine the acoustic functions of traditional acoustic panels with the core characteristics of eco-friendly wood. This material possesses excellent physical properties such as non-expansion, non-deformation, flame retardancy, pollution resistance, aging resistance, waterproofing, moisture resistance, mildew and corrosion resistance, and termite resistance. Furthermore, it supports cutting and mosaic operations during construction and is easy to maintain, making it widely used in various architectural acoustic applications.

[0003] In the actual production process of wood-plastic composite (WPC) acoustic panels, performance testing is a crucial step in ensuring product quality. However, existing testing technologies still have significant shortcomings: Firstly, while the pressure can be precisely controlled during compression testing, the measurement of the degree of bending of the WPC acoustic panel still relies on manual operation. If the measurement direction cannot be tangent to the bending point of the board, measurement errors are easily introduced, making it difficult to obtain compression data that truly reflects the performance of the board. Secondly, due to the special structure of WPC acoustic panels, which are made of wood powder and PVC composite molding, existing testing methods cannot simultaneously test flexibility when testing their compression strength, resulting in a single testing function. This singular testing mode makes it difficult to achieve a comprehensive evaluation of the overall performance of WPC acoustic panels. This not only hinders the optimization and adjustment of raw material ratios during production but also makes it difficult for companies to accurately develop and produce WPC acoustic panel products suitable for different application needs, thus limiting the further promotion and application of this type of material. Summary of the Invention

[0004] The purpose of this invention is to provide an inspection device for processing wood-plastic composite sound-absorbing panels, so as to at least solve the problem that the prior art cannot automatically detect the compressive strength and flexibility of wood-plastic composite sound-absorbing panels.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an inspection device for processing wood-plastic composite sound-absorbing panels, comprising a base, a controller, and two supports. The controller is installed at the front end of the upper surface of the base, and the two supports are respectively installed at the left and right ends of the upper surface of the base. The supports support the wood-plastic composite sound-absorbing panels. A pressure-applying mechanism is installed at the center of the rear side of the upper surface of the base. The pressure-applying mechanism applies pressure to the wood-plastic composite sound-absorbing panels as a force for pressure resistance testing. A bending detection mechanism is installed on the upper surface of the base, and the bending detection mechanism is located directly below the pressure-applying mechanism. The bending detection mechanism tests the degree of bending of the wood-plastic composite sound-absorbing panels. A visual inspection mechanism is installed on the outer wall of the bending detection mechanism. The pressurizing mechanism includes a vertical plate installed at the center of the rear side of the upper surface of the base. A cylinder electrically connected to the controller is installed on the top of the outer wall of the vertical plate. A pressure plate is installed at the output end of the cylinder. The cylinder drives the pressure plate to move downward, so that the pressure plate applies pressure to the wood-plastic sound-absorbing board. The cylinder drives the pressure plate to descend, providing pressure for the wood-plastic sound-absorbing panel.

[0006] Preferably, the bending detection mechanism includes a housing mounted on the upper surface of the base. A lifting column is vertically inserted into the upper surface of the housing and is located directly below the pressure plate. Two horizontally arranged guide rods are installed at the upper and lower ends of the inner cavity of the housing. Springs and movable seats are respectively sleeved on the left and right ends of the outer walls of the guide rods. The spring force drives the movable seat to move to the right. A slide rail is opened on the outer wall of the movable seat. A roller inserted into the inner cavity of the slide rail is installed at the bottom front end of the lifting column. A first electrode plate is installed on the right side wall of the movable seat. A second electrode plate is installed on the right inner wall of the housing, which is opposite to the position of the first electrode plate. The first electrode plate and the second electrode plate are connected to a power source to charge the first electrode plate and the second electrode plate. A voltmeter is also installed between the first electrode plate and the second electrode plate and is electrically connected to the controller. The position of the moving seat is adjusted by the cooperation of rollers and slides. The distance between the first and second electrodes is changed according to the bending of the wood-plastic sound-absorbing board, and the voltage change between the first and second electrodes is converted into the bending distance of the wood-plastic sound-absorbing board.

[0007] Preferably, the slide rails are distributed on the outer wall of the movable seat from top to bottom and to the right.

[0008] Preferably, the visual inspection mechanism includes two rotating components installed on the left and right outer walls of the housing, and the two rotating components are symmetrical. A lifting component that meshes and drives the rotating components is installed on the front of the housing. A drive component is also installed at the bottom of the front of the housing. The drive component drives the lifting component to move up and down intermittently, so that the rotating component changes the shooting angle of the wood-plastic sound-absorbing panel.

[0009] Preferably, the rotating assembly includes a support base mounted on the outer wall of the housing. A rotating shaft is mounted at the center of the support base via a bearing. Gears and a CCD camera are respectively mounted at the front and rear ends of the rotating shaft. The CCD camera is electrically connected to the controller. The CCD camera takes pictures of the wood-plastic composite sound-absorbing panel and extracts the image of the wood-plastic composite sound-absorbing panel. The controller analyzes the image fed back by the CCD camera and detects whether cracks have occurred on the surface of the wood-plastic composite sound-absorbing panel. The wood-plastic composite sound-absorbing panel is photographed from all angles using a rotating CCD camera to perform visual inspection.

[0010] Preferably, the lifting assembly includes a slide rod vertically mounted on the front of the housing, a slide seat sleeved on the outer wall of the slide rod, the outer wall of the slide rod being rectangular to prevent the slide seat from rotating during lifting, an insert rod installed at the bottom of the right side wall of the slide seat, and crossbars installed at both ends of the slide seat, with a rack connected to a gear on the outer side of the crossbars.

[0011] Preferably, the drive assembly includes a motor mounted on the bottom front of the housing, the motor being electrically connected to the controller, a roller being mounted on the output end of the motor, a guide groove being formed on the outer wall of the roller, and a rod being inserted into the inner cavity of the guide groove; As the driving force for the lifting component, the rack intermittently rises and resets.

[0012] Preferably, one side of the guide groove is stepped, while the other side is a reverse slope that slopes from top to bottom to the right, and the two sides are connected end to end.

[0013] The present invention provides an inspection device for the processing of wood-plastic acoustic panels, which has the following advantages: 1. This invention applies pressure to the board material by driving a pressure plate with a cylinder. Simultaneously, the linkage structure of the lifting column, rollers and inclined slide rails is used to convert the bending action of the board material into the lateral displacement of the moving seat. Then, the voltage signal changes by the change in the distance between the first and second pole plates. The controller accurately calculates the degree of bending of the board material based on the linear change of the voltage. The real compressive strength data corresponding to the applied pressure can be obtained without manual intervention, which significantly improves the accuracy and reliability of the detection and provides key technical support for ensuring the production quality of wood-plastic sound-absorbing panels.

[0014] 2. This invention uses a motor to drive a rotating drum, and the intermittent lifting and lowering of the slide is achieved through the cooperation of guide grooves and insert rods. Then, through the meshing transmission of rack and pinion gears, the two CCD cameras rotate synchronously in opposite directions intermittently, completing the full-angle image acquisition of the wood-plastic composite sound-absorbing board. The controller can accurately determine whether cracks have occurred on the surface of the board by analyzing the images, thus achieving efficient detection of flexibility. This integrated detection mode can comprehensively evaluate the core performance of the wood-plastic composite sound-absorbing board, providing a scientific basis for optimizing the raw material ratio during the production process. It helps enterprises accurately develop and produce products suitable for different application needs, broadens the application range of wood-plastic composite sound-absorbing boards, and improves their performance testing system. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention; Figure 2 This is a perspective view of the pressurization mechanism of the present invention; Figure 3 This is a three-dimensional view of the visual inspection mechanism of the present invention; Figure 4 This is a perspective view of the bending detection mechanism of the present invention; Figure 5This is a perspective view of the lifting component of the present invention; Figure 6 This is a perspective view of the driving component of the present invention; Figure 7 This is a diagram of the unfolded drum of the present invention.

[0016] In the diagram: 1. Base; 2. Controller; 3. Bracket; 4. Pressurizing mechanism; 5. Bending detection mechanism; 6. Vision inspection mechanism; 41. Vertical plate; 42. Cylinder; 43. Pressure plate; 51. Housing; 52. Lifting column; 53. Guide rod; 54. Spring; 55. Moving seat; 56. Slide rail; 57. Roller; 58. First electrode plate; 59. Second electrode plate; 61. Rotating assembly; 62. Lifting assembly; 63. Drive assembly; 611. Support base; 612. Rotating shaft; 613. Gear; 614. CCD camera; 621. Slide rod; 622. Slide seat; 623. Insert rod; 624. Crossbar; 625. Rack; 631. Motor; 632. Roller; 633. Guide groove. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Please see Figure 1-7 The present invention provides a technical solution: an inspection device for processing wood-plastic sound-absorbing panels, comprising a base 1, a controller 2, and two supports 3. The controller 2 is installed at the front end of the upper surface of the base 1, and the two supports 3 are respectively installed at the left and right ends of the upper surface of the base 1. The supports 3 support the wood-plastic sound-absorbing panels. A pressure mechanism 4 is installed at the center of the rear side of the upper surface of the base 1. The pressure mechanism 4 applies pressure to the wood-plastic sound-absorbing panels as a force for pressure resistance testing. A bending detection mechanism 5 is installed on the upper surface of the base 1, and the bending detection mechanism 5 is located directly below the pressure mechanism 4. The bending detection mechanism 5 tests the degree of bending of the wood-plastic sound-absorbing panels. A visual inspection mechanism 6 is installed on the outer wall of the bending detection mechanism 5. The pressurizing mechanism 4 includes a vertical plate 41 installed at the center of the rear side of the upper surface of the base 1. A cylinder 42 electrically connected to the controller 2 is installed on the top of the outer wall of the vertical plate 41. A pressure plate 43 is installed at the output end of the cylinder 42. The cylinder 42 drives the pressure plate 43 to move downward, so that the pressure plate 43 applies pressure to the wood-plastic sound-absorbing board. The cylinder 42 is connected to a pressure gauge to monitor the pressure applied by the pressure plate to the wood-plastic sound-absorbing board.

[0019] As a preferred embodiment, the bending detection mechanism 5 further includes a housing 51 mounted on the upper surface of the base 1. A lifting column 52 is vertically inserted into the upper surface of the housing 51, and the lifting column 52 is located directly below the pressure plate 43. The pressure point of the pressure plate 43 on the wood-plastic sound-absorbing board coincides with the center of the lifting column 52, ensuring that the bending point of the wood-plastic sound-absorbing board is accurately applied to the lifting column 52, thus improving the accuracy of the compressive strength test. Two horizontally arranged guide rods 53 are installed at the upper and lower ends of the inner cavity of the housing 51. Springs 54 and movable seats 55 are respectively sleeved on the left and right ends of the outer wall of the guide rods 53. The spring force of the spring 54 drives the movable seat 55 to move to the right. A slide rail 56 is opened on the outer wall of the movable seat 55. The slide rail 56 is distributed on the outer wall of the movable seat 55 at an angle from top to bottom to the right. The lifting column 52 raises and lowers the roller 57. The movable seat 55 is pressed to the right or left. A roller 57 is installed at the bottom front of the lifting column 52 and is inserted into the inner cavity of the slide 56. The roller 57 rolls in the slide 56, reducing the friction between the roller 57 and the slide 56. A first electrode plate 58 is installed on the right side wall of the movable seat 55, and a second electrode plate 59 is installed on the right inner wall of the outer shell 51, which is opposite to the position of the first electrode plate 58. The first electrode plate 58 and the second electrode plate 59 are connected to a power source to charge the first electrode plate 58 and the second electrode plate 59. A voltmeter is also installed between the first electrode plate 58 and the second electrode plate 59, and the voltmeter is electrically connected to the controller 2. When the distance between the first electrode plate 58 and the second electrode plate 59 increases, the capacitance decreases and the voltage increases. The descent distance of the lifting column 52 is analyzed based on the linear change of voltage, thereby testing the bending degree of the wood-plastic sound-absorbing board.

[0020] When the cylinder 42 in the pressurizing mechanism 4 drives the pressure plate 43 to move downward and applies pressure to the wood-plastic sound-absorbing board supported on the bracket 3, the wood-plastic sound-absorbing board gradually bends downward under the pressure. Its bent part contacts the top of the lifting column 52 and pushes the lifting column 52 to move downward along the insertion hole of the outer shell 51. During the descent of the lifting column 52, the roller 57 at its bottom end rolls along the inclined inner wall of the slide 56. Since the slide 56 is inclined to the right, the roller 57 will generate a lateral thrust on the inner wall of the slide 56 when it rolls. This thrust overcomes the elastic force of the spring 54 and drives the moving seat 55 to move to the left along the guide rod 53. As the moving seat 55 moves to the left, the distance between the first electrode plate 58 and the second electrode plate 59 gradually increases.

[0021] Based on the physical characteristics of a capacitor, with constant plate area and dielectric constant, the capacitance is inversely proportional to the plate spacing; that is, as the plate spacing increases, the capacitance between the two plates decreases. Since the voltage of the external power supply to the two plates is constant, according to the correlation between capacitance and voltage, a decrease in capacitance leads to an increase in the voltage between the two plates, and the voltage change is linearly correlated with the change in plate spacing. A voltmeter collects this voltage change data in real time and transmits it to controller 2. Controller 2 has a built-in preset voltage-spacing conversion algorithm. Through analysis and processing of the voltage signal, it accurately calculates the descent distance of the lifting column 52, and then reversely derives the degree of bending of the wood-plastic acoustic panel. Ultimately, it achieves automated and accurate detection of the bending degree of the wood-plastic acoustic panel, obtaining the true compressive strength data corresponding to the applied pressure without manual intervention.

[0022] After the pressure test is completed, the pressure plate 43 of the pressure mechanism 4 returns to its original position, the bending force of the wood-plastic sound-absorbing board disappears, the spring 54 pushes the moving seat 55 to the right to return to its original position under its own elastic force, and the lifting column 52 rises back to its initial position under the reverse transmission of the slide rail 56, preparing for the next test.

[0023] The bending detection mechanism 5 precisely receives the bending force of the wood-plastic sound-absorbing board after it is compressed by the lifting column 52 located directly below the pressure plate 43. With the help of the linkage structure of the lifting column, rollers, inclined slide and moving seat, the vertical bending displacement of the board is converted into the lateral displacement of the moving seat. Then, through the change of the distance between the first pole plate 58 and the second pole plate 59, the lateral displacement is converted into a quantifiable voltage signal and transmitted to the controller 2. This realizes the full-chain automatic conversion of bending action, mechanical displacement and electrical signal, and provides a direct basis for the evaluation of the board's compressive strength. It avoids the errors of traditional manual measurement, improves the detection accuracy through precise structural design and low friction transmission, and realizes the quantitative correspondence and data linkage between the pressure and bending degree, supporting the comprehensive performance evaluation of the board. At the same time, the fully automated operation and stable repeatability are suitable for industrial batch testing.

[0024] As a preferred embodiment, the visual inspection mechanism 6 further includes two rotating components 61 installed on the left and right outer walls of the housing 51, and the two rotating components 61 are symmetrical. A lifting component 62 that meshes and drives the rotating components 61 is installed on the front of the housing 51. A drive component 63 is also installed at the bottom of the front of the housing 51. The drive component 63 drives the lifting component 62 to move up and down intermittently, so that the rotating component 61 changes the shooting angle of the wood-plastic sound-absorbing panel.

[0025] As a preferred embodiment, the rotating assembly 61 further includes a support base 611 mounted on the outer wall of the housing 51. A rotating shaft 612 is mounted at the center of the support base 611 via a bearing. Gears 613 and a CCD camera 614 are respectively mounted at the front and rear ends of the rotating shaft 612. The gears 613 control the rotation and stopping of the CCD camera 614. The CCD camera 614 is electrically connected to the controller 2. The CCD camera 614 takes pictures of the wood-plastic composite sound-absorbing panel and extracts the image of the wood-plastic composite sound-absorbing panel. The controller 2 analyzes the image fed back by the CCD camera 614 and detects whether cracks have occurred on the surface of the wood-plastic composite sound-absorbing panel.

[0026] As a preferred embodiment, the lifting assembly 62 further includes a slide rod 621 vertically mounted on the front of the housing 51. A slide seat 622 is sleeved on the outer wall of the slide rod 621. The outer wall of the slide rod 621 is rectangular to prevent the slide seat 622 from rotating during lifting. A plug rod 623 is installed at the bottom of the right side wall of the slide seat 622. A crossbar 624 is installed at both ends of the slide seat 622. A rack 625 that meshes with the gear 613 is installed on the outside of the crossbar 624. When the rack 625 and the gear 613 are driven, the two CCD cameras 614 rotate synchronously in opposite directions, allowing the CCD cameras 614 to take pictures along the wood-plastic sound-absorbing panel.

[0027] As a preferred embodiment, the drive assembly 63 further includes a motor 631 mounted on the bottom front of the housing 51. The motor 631 is electrically connected to the controller 2. A roller 632 is mounted on the output end of the motor 631. A guide groove 633 is formed on the outer wall of the roller 632. The insertion rod 623 is inserted into the inner cavity of the guide groove 633. One side of the guide groove 633 is stepped, while the other side is a reverse slope that slopes from top to bottom to the right and is connected end to end. As the roller 632 rotates clockwise, the stepped slope of the guide groove 633 is responsible for pressing the insertion rod 623 upward, and the stepped transverse part is responsible for stopping the insertion rod 623. The other slope is responsible for pressing the insertion rod 623 downward, thereby resetting the insertion rod 623.

[0028] Its detailed connection method is a well-known technology in this field. The following mainly introduces the working principle and process, and the specific work is as follows.

[0029] Step 1: The wood-plastic composite sound-absorbing panel to be tested is placed on the support 3. The cylinder 42 drives the pressure plate 43 to descend, and the pressure plate 43 gradually applies pressure to the wood-plastic composite sound-absorbing panel. The change in the external force on the wood-plastic composite sound-absorbing panel is determined according to the air pressure. As the wood-plastic composite sound-absorbing panel bends downward, it presses down on the lifting column 52. When the roller 57 follows the lifting column 52 down, it squeezes the inclined surface of the slide 56, causing the slide 56 to move to the left under the action of its own inclined surface. The distance between the first electrode plate 58 and the second electrode plate 59 gradually increases. According to the capacitance determination formula, the capacitance decreases as the distance increases, and the voltage increases. The controller 2 calculates the current bending degree of the wood-plastic composite sound-absorbing panel based on the linear change of voltage, and tests the pressure resistance of the wood-plastic composite sound-absorbing panel. Step two: When the wood-plastic acoustic panel is bent, the motor 631 drives the roller 632 to rotate clockwise. The horizontal plane of the roller 632 allows the insertion rod 623 to stay at the current height, while the inclined surface of the stepped position of the guide groove 633 is used to press the insertion rod 623 upward, causing the slide 622 to rise intermittently. Under the transmission conditions of the rack 625 and the gear 613, the gear 613 drives the CCD camera 614 to rotate intermittently. The CCD camera 614 takes pictures of the wood-plastic acoustic panel using the rotation gap. As the CCD camera 614 takes pictures from multiple angles, all images of the wood-plastic acoustic panel are extracted. The controller 2 checks whether cracks appear on the surface of the wood-plastic acoustic panel based on the feedback image signal, thus realizing the quality detection of the wood-plastic acoustic panel.

[0030] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inspection device for processing wood-plastic composite sound-absorbing panels, comprising a base (1), a controller (2), and two supports (3), wherein the controller (2) is mounted on the front end of the upper surface of the base (1), and the two supports (3) are respectively mounted on the left and right ends of the upper surface of the base (1), and the supports (3) support the wood-plastic composite sound-absorbing panels, characterized in that, A pressure mechanism (4) is installed at the center of the rear side of the upper surface of the base (1). The pressure mechanism (4) applies pressure to the wood-plastic sound-absorbing board as a force for pressure resistance testing. A bending detection mechanism (5) is installed on the upper surface of the base (1) and is located directly below the pressure mechanism (4). The bending detection mechanism (5) tests the degree of bending of the wood-plastic sound-absorbing board. A visual inspection mechanism (6) is installed on the outer wall of the bending detection mechanism (5). The pressurizing mechanism (4) includes a vertical plate (41) installed at the center of the rear side of the upper surface of the base (1). A cylinder (42) electrically connected to the controller (2) is installed on the top of the outer wall of the vertical plate (41). A pressure plate (43) is installed at the output end of the cylinder (42). The pressure plate (43) is driven to move downward by the cylinder (42) so that the pressure plate (43) applies pressure to the wood-plastic sound-absorbing board.

2. The inspection device for processing wood-plastic acoustic panels according to claim 1, characterized in that, The bending detection mechanism (5) includes a housing (51) installed on the upper surface of the base (1). A lifting column (52) is vertically inserted into the upper surface of the housing (51), and the lifting column (52) is located directly below the pressure plate (43). Two horizontally arranged guide rods (53) are installed at the upper and lower ends of the inner cavity of the housing (51). A spring (54) and a moving seat (55) are respectively sleeved on the left and right ends of the outer wall of the guide rod (53). The spring (54) drives the moving seat (55) to move to the right. A slide (56) is opened on the outer wall of the moving seat (55). The lifting column (52) is equipped with a roller (57) that is inserted into the inner cavity of the slide (56) at the bottom front end. The moving seat (55) is equipped with a first electrode plate (58) on the right side wall. The outer shell (51) is equipped with a second electrode plate (59) that is opposite to the position of the first electrode plate (58) on the right inner wall. The first electrode plate (58) and the second electrode plate (59) are connected to a power source to charge the first electrode plate (58) and the second electrode plate (59). A voltmeter is also installed between the first electrode plate (58) and the second electrode plate (59), and the voltmeter is electrically connected to the controller (2).

3. The inspection device for processing wood-plastic acoustic panels according to claim 2, characterized in that, The slide (56) is distributed on the outer wall of the movable seat (55) from top to bottom and to the right.

4. The inspection device for processing wood-plastic acoustic panels according to claim 3, characterized in that, The visual inspection mechanism (6) includes two rotating components (61) installed on the left and right outer walls of the housing (51), and the two rotating components (61) are symmetrical. A lifting component (62) that meshes with the rotating component (61) is installed on the front of the housing (51). A drive component (63) is also installed at the bottom of the front of the housing (51). The drive component (63) drives the lifting component (62) to move intermittently up and down, so that the rotating component (61) changes the shooting angle of the wood-plastic sound-absorbing panel.

5. The inspection device for processing wood-plastic acoustic panels according to claim 4, characterized in that, The rotating assembly (61) includes a support base (611) installed on the outer wall of the housing (51). A rotating shaft (612) is installed at the center of the support base (611) via a bearing. Gears (613) and a CCD camera (614) are installed at the front and rear ends of the rotating shaft (612), respectively. The CCD camera (614) is electrically connected to the controller (2). The CCD camera (614) takes pictures of the wood-plastic sound-absorbing panel and extracts the image of the wood-plastic sound-absorbing panel. The controller (2) analyzes the image fed back by the CCD camera (614) and detects whether cracks have occurred on the surface of the wood-plastic sound-absorbing panel.

6. The inspection device for processing wood-plastic acoustic panels according to claim 5, characterized in that, The lifting assembly (62) includes a slide rod (621) vertically mounted on the front of the housing (51). A slide seat (622) is sleeved on the outer wall of the slide rod (621). The outer wall of the slide rod (621) is rectangular to prevent the slide seat (622) from rotating when it is raised or lowered. A plug rod (623) is installed at the bottom of the right side wall of the slide seat (622). A crossbar (624) is installed at both the left and right ends of the slide seat (622). A rack (625) that meshes with a gear (613) is installed on the outside of the crossbar (624).

7. The inspection device for processing wood-plastic acoustic panels according to claim 6, characterized in that, The drive assembly (63) includes a motor (631) installed on the bottom front of the housing (51). The motor (631) is electrically connected to the controller (2). A roller (632) is installed at the output end of the motor (631). A guide groove (633) is provided on the outer wall of the roller (632). A rod (623) is inserted into the inner cavity of the guide groove (633).

8. An inspection device for processing wood-plastic acoustic panels according to claim 7, characterized in that, The guide groove (633) has a stepped shape on one side and a reverse inclined surface that slopes from top to bottom to the right on the other side, and the two sides are connected end to end.

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