A polishing machine for wood-plastic floor processing

Abstract

The utility model discloses a polishing machine for wood -plastic floor processing relates to wood -plastic floor polishing technical field, including main part frame, the main part frame top is provided with the conveyer belt, the main part frame top fixed mounting has the cantilever beam, still including the isolating cover, the isolating cover inside is provided with the mounting seat, the isolating cover top fixed mounting has the connecting frame, the connecting frame bottom rotatable mounting has the hollow shaft. The utility model discloses, through adopting the integration design of "cold -blast + ion fan + hollow shaft + airflow groove", through the ion cold -blast direct action in polishing area, reduces the temperature at wood -plastic floor polishing, effectively avoids the plastic layer melting, simultaneously, ion wind neutralizes the debris static electricity, cooperates the purging effect of airflow groove, makes the separation efficiency of debris and polishing piece to promote, and the adhesion rate of abrasive tool is reduced, makes the abrasive tool life to be able to extend, and also improved the processing efficiency, and the board surface roughness has been stably controlled.

Description

Technical Field

[0001] This utility model relates to the field of wood-plastic flooring polishing technology, and in particular to a polishing machine for processing wood-plastic flooring. Background Technology

[0002] Wood-plastic composite flooring, a new type of building material made of wood fiber and plastic (PE / PVC), combines the texture of wood with the weather resistance of plastic. It has been widely used in home decoration, outdoor landscaping, and public facilities. However, its composite characteristics have also brought many technical challenges to the polishing process in the manufacturing stage.

[0003] Among these issues, the low thermal conductivity of the plastic component in wood-plastic composite flooring (only 0.1–0.2 W / m·K) means that the localized heat generated by the high-speed friction between the abrasive and the board during polishing (reaching 80–120°C) can easily cause the plastic layer to melt and soften, thus adhering to the surface of the sanding belt and grinding disc, forming "orange peel texture" or "scratches." This not only affects the surface roughness of the board (Ra value often exceeds 1.6 μm) but also requires frequent machine shutdowns to clean the abrasive, leading to decreased processing efficiency and shortened abrasive life. Traditional polishing machines mostly use a single negative pressure dust collection structure, which can only remove some dust floating in the air. It has a weak ability to adsorb debris attached to the gaps between the abrasive and the surface of the board. At the same time, in a dry environment, debris generates static electricity due to friction, which easily agglomerates and adheres to the inner wall of the equipment and the surface of the abrasive, reducing dust collection efficiency and easily affecting the surface roughness of the board. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a polishing machine for processing wood-plastic composite flooring, which solves the problem that heat and static electricity are generated during the sanding process of wood-plastic composite flooring, causing debris to easily adhere to the surface of the sanding disc and affecting the surface roughness of the board.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A polishing machine for processing wood-plastic flooring includes a main frame, a conveyor belt on the top of the main frame, a cantilever beam fixedly installed on the top of the main frame, an isolation cover, a mounting base inside the isolation cover, a connecting frame fixedly installed on the top of the isolation cover, and a hollow shaft rotatably installed on the bottom of the connecting frame. A drive assembly, which is mounted on a connecting frame and is used to drive the hollow shaft to rotate; A limiting component is installed on the main frame and is used to limit the wood-plastic flooring. A cooling assembly is installed between the main frame and the connecting frame and is used to cool the wood-plastic flooring during sanding. An adjustment assembly, which is mounted on the cantilever beam and is used to adjust the position of the connecting frame; A dust collection assembly is installed between the main frame and the isolation cover and is used to remove sanding debris.

[0006] Preferably, the driving component includes: The motor is fixedly mounted on the top inner wall of the connecting frame. A first synchronous pulley is fixedly mounted on the output end of the motor. A second synchronous pulley is fixedly mounted on the outer wall of the hollow shaft. A synchronous belt is sleeved between the outer walls of the second synchronous pulley and the first synchronous pulley.

[0007] Preferably, the limiting component includes: Two cylinders are fixedly installed on both sides of the top of the main frame. Two opposing limit frames are provided on the top of the conveyor belt. The opposite sides of the two limit frames are fixed to the output ends of the two cylinders respectively.

[0008] Preferably, the cooling assembly includes: A cool air blower is fixedly installed on the bottom inner wall of the main frame. An ion fan is fixedly installed on the inner wall of the connecting frame. The air inlet of the ion fan is connected to the output of the cool air blower through a flexible hose. A rotary joint is fixedly installed on the top inner wall of the connecting frame. The rotating end of the rotary joint is fixed to the upper port of the hollow shaft. The other end of the rotary joint is connected to the air outlet of the ion fan through a pipe.

[0009] Preferably, the adjustment component includes: An electric slide rail is slidably installed on the inner side of a cantilever beam. An electric push rod is fixedly installed on the top of the cantilever beam. The output end of the electric push rod is fixed to the electric slide rail. The top of the connecting frame is fixed to the slider portion of the electric slide rail.

[0010] Preferably, the vacuuming assembly includes: A vacuum cleaner is fixedly installed on the inner bottom of the main frame, and multiple exhaust pipes are fixedly installed through the top of the isolation cover.

[0011] Preferably, a grinding disc is fixedly installed at the bottom of the mounting base, and multiple airflow grooves are opened at the bottom of the grinding disc. The lower end of the hollow shaft passes through the isolation cover and the mounting base and is fixedly connected to the mounting base. The inner hole of the hollow shaft is connected to the multiple airflow grooves.

[0012] Compared with the prior art, the present invention has the following beneficial effects: I. By adopting an integrated design of "cooling fan + ion fan + hollow shaft + airflow channel", the ionized cold air acts directly on the polishing area, reducing the temperature of the wood-plastic flooring being sanded and effectively preventing the plastic layer from melting. At the same time, the ionized air neutralizes the static electricity of the debris, and together with the blowing action of the airflow channel, it improves the separation efficiency of debris from the sanding disc, reduces the adhesion rate of the abrasive, extends the life of the abrasive, and also improves processing efficiency and stabilizes the surface roughness of the board. Attached Figure Description

[0013] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the regional structure of the main frame in this utility model; Figure 3 This is a schematic diagram of the regional structure of the cantilever beam in this utility model; Figure 4 This is a cross-sectional view of the combined structure of the isolation cover, mounting base, and grinding disc in this utility model.

[0015] Legend: 1. Main frame; 2. Conveyor belt; 3. Suspension beam; 4. Electric push rod; 5. Electric slide rail; 6. Cylinder; 7. Limiting frame; 8. Air cooler; 9. Vacuum cleaner; 10. Connecting frame; 11. Motor; 12. Hollow shaft; 13. Isolation cover; 14. Exhaust pipe; 15. Airflow channel; 16. Rotary joint; 17. First synchronous pulley; 18. Synchronous belt; 19. Second synchronous pulley; 20. Ionizing fan; 21. Mounting base; 22. Grinding disc. Detailed Implementation

[0016] This application provides a polishing machine for processing wood-plastic flooring, which effectively solves the problem that heat and static electricity are generated during the sanding process of wood-plastic flooring, causing debris to easily stick to the surface of the polishing disc and affecting the surface roughness of the board.

[0017] Example like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the technical problem that during the sanding process of wood-plastic flooring, heat and static electricity are generated, causing debris to easily adhere to the surface of the sanding pad, which easily affects the surface roughness of the board. The overall idea is as follows: To address the problems existing in the prior art, this utility model provides a polishing machine for processing wood-plastic flooring, including a main frame 1, a conveyor belt 2 on the top of the main frame 1, a suspension beam 3 fixedly installed on the top of the main frame 1, and an isolation cover 13. An installation base 21 is provided inside the isolation cover 13, a connecting frame 10 is fixedly installed on the top of the isolation cover 13, and a hollow shaft 12 is rotatably installed at the bottom of the connecting frame 10. A drive assembly is mounted on the connecting frame 10 and is used to drive the hollow shaft 12 to rotate. A limiting component is installed on the main frame 1 and is used to limit the wood-plastic flooring. A cooling assembly is installed between the main frame 1 and the connecting frame 10 and is used to cool the wood-plastic flooring during sanding. An adjustment component is mounted on the cantilever beam 3 and is used to adjust the position of the connecting frame 10; A dust collection component is installed between the main frame 1 and the isolation cover 13 and is used to remove sanding debris.

[0018] Furthermore, the driving components include: Motor 11 is fixedly installed on the top inner wall of the connecting frame 10. A first synchronous pulley 17 is fixedly installed at the output end of motor 11. A second synchronous pulley 19 is fixedly installed on the outer wall of hollow shaft 12. A synchronous belt 18 is sleeved between the outer walls of the second synchronous pulley 19 and the first synchronous pulley 17.

[0019] Furthermore, the limiting components include: Two cylinders 6 are fixedly installed on both sides of the top of the main frame 1. Two opposing limit frames 7 are provided on the top of the conveyor belt 2. The opposite sides of the two limit frames 7 are fixed to the output ends of the two cylinders 6 respectively.

[0020] Furthermore, the cooling components include: A cooler 8 is fixedly installed on the bottom inner wall of the main frame 1. An ion fan 20 is fixedly installed on the inner wall of the connecting frame 10. The air inlet of the ion fan 20 is connected to the output of the cooler 8 through a flexible hose. A rotary joint 16 is fixedly installed on the top inner wall of the connecting frame 10. The rotating end of the rotary joint 16 is fixed to the upper port of the hollow shaft 12. The other end of the rotary joint 16 is connected to the air outlet of the ion fan 20 through a pipe.

[0021] Furthermore, the adjustment components include: The electric slide rail 5 is slidably installed on the inner side of the suspension beam 3. The top of the suspension beam 3 is fixedly installed with an electric push rod 4. The output end of the electric push rod 4 is fixed to the electric slide rail 5. The top of the connecting frame 10 is fixed to the slider part of the electric slide rail 5.

[0022] Furthermore, the vacuuming components include: Vacuum cleaner 9 is fixedly installed on the inner bottom of the main frame 1. Multiple exhaust pipes 14 are fixedly installed through the top of the isolation cover 13. The multiple exhaust pipes 14 are connected to the suction end of vacuum cleaner 9 through branch hoses.

[0023] Furthermore, a grinding disc 22 is fixedly installed at the bottom of the mounting base 21. The bottom of the grinding disc 22 has multiple airflow grooves 15. The bottom of the mounting base 21 has a groove that communicates with the inner hole of the hollow shaft 12 and the multiple airflow grooves 15.

[0024] Furthermore, the lower end of the hollow shaft 12 passes through the isolation cover 13 and the mounting base 21 and is fixedly connected to the mounting base 21.

[0025] in: Main Frame 1: An all-steel structure providing a stable supporting foundation; Conveyor belt 2: Made of polyurethane, the conveying speed is steplessly adjustable from 0.5 to 5 m / min by a frequency converter. It is laid on top of the main frame 1 and is used to support and convey the wood-plastic flooring. Cantilever beam 3: Made of aluminum alloy, with a U-shaped cross-section, it is fixedly installed on both sides of the top of the main frame 1 and is used to hang the adjustment components and the connecting frame 10; Electric push rod 4 (stroke 200mm, thrust 500N, adjustment accuracy ±0.1mm): It is fixedly installed at the top center of the cantilever beam 3 by a bracket, with the output end facing down and fixedly connected to the slide rail of the electric slide rail 5. The electric push rod 4 controls the up and down movement of the connecting frame 10 (adjustment range 0-200mm), realizing the distance control between the sanding disc 22 and the surface of the board (suitable for wood-plastic flooring with a thickness of 8-25mm). Electric slide rail 5 (stroke 1500mm, speed 0.1~0.5m / s, positioning accuracy ±0.05mm) adopts a linear module structure and is slidably installed on the inner guide rail of the cantilever beam 3. The bottom of its slider is fixed to the top of the connecting frame 10 by bolts. The electric slide rail 5 controls the lateral movement of the connecting frame 10 to achieve full longitudinal coverage polishing of the plate by the grinding disc 22. Cylinder 6: A small pneumatic cylinder (32mm diameter, 100mm stroke) is selected and fixedly installed on both sides of the top of the main frame 1 by angle brackets. The output end faces the center of the conveyor belt 2. The cylinder 6 is controlled to extend and retract by a solenoid valve, which can adjust the spacing of the limit frame 7 within the range of 100-300mm. It is suitable for wood-plastic flooring of different widths, and the rubber buffer pad can avoid squeezing damage to the side of the board when limiting. Limit frame 7: It is a long strip aluminum alloy structure with a rubber buffer pad (5mm thick) pasted on the inside. Two limit frames 7 are set opposite to each other on the top two sides of the conveyor belt 2, and their opposite sides are fixedly connected to the output end of the cylinder 6 by bolts. Air cooler 8 (cooling capacity 1.5kW, outlet air temperature 5-15℃) is fixedly installed on the bottom inner wall of the main frame 1 by bolts, and the air outlet is connected to a high temperature resistant hose; Vacuum Cleaner 9: (Negative pressure -20kPa, air volume 300m³ / h) 3 / h) is fixedly installed on the inner bottom of the main frame 1 by bolts, the air inlet is connected to the branch hose, and the branch pipe of the branch hose is connected to the exhaust pipe 14; Connecting frame 10: It is a "U"-shaped metal frame, which is fixed to the isolation cover 13 by bolts; Motor 11: A servo motor (7.5kW power, stepless speed adjustment from 0-3000r / min) is selected and fixedly installed on the top inner wall of the connecting frame 10 with bolts, and the output shaft is set downward. Hollow shaft 12: Made of stainless steel, with its lower end passing through the isolation cover 13 and the mounting base 21, and is welded and fixed to the mounting base 21; Isolation cover 13: Made of transparent acrylic material, with a 3mm thick silicone ring bonded to the bottom, covering the outside of the mounting base 21, which facilitates observation of the polishing process and prevents debris from flying and the abrasive from scratching the plate. Exhaust pipe 14: Made of PVC, there are 4 pipes in total, which are evenly inserted and glued to the top of the isolation cover 13 (distributed along the circumference of the isolation cover 13). The upper end of the pipe is connected to the branch hose of the vacuum cleaner 9, and the lower end extends into the interior of the isolation cover 13 (30mm away from the surface of the grinding disc 22), forming a ring-shaped dust collection area. Rotary joint 16 (pressure resistant 0.8MPa, temperature resistant 120℃) is fixedly installed on the top inner wall of the connecting frame 10 through a flange. Its rotating end is welded and fixed to the upper port of the hollow shaft 12, and the fixed end is connected to the metal pipe of the ion fan 20 to realize the airflow sealing and delivery when the hollow shaft 12 rotates. First synchronous pulley 17: fixedly connected to the output end of motor 11 via a flat key; Synchronous belt 18: A polyurethane synchronous belt is used, which is sleeved between the first synchronous pulley 17 and the second synchronous pulley 19. The tension is adjusted by the tension wheel (not shown) to achieve stable transmission of motor power and drive the hollow shaft 12 to rotate at a speed of 1500-2000 r / min. Second synchronous pulley 19: Fixed to the outer wall of hollow shaft 12 (near the bottom of connecting frame 10) by a flat key. Ionizing fan 20: (air volume 200m³) 3 / h, ion balance ±5V) is fixedly installed on one side of the inner wall of the connecting frame 10 by a bracket, the air inlet end is connected to the hose of the air cooler 8, and the air outlet end is connected to the metal pipe. Mounting base 21: The bottom has an annular groove that communicates with the inner hole of the hollow shaft 12; Grinding disc 22: It is a silicon carbide abrasive disc (240-400 mesh, 200mm in diameter), which is fixed to the bottom of the mounting base 21 by bolts. Multiple airflow grooves 15 (10mm wide, 3mm deep, distributed along the radial direction) are opened on its surface. The airflow grooves 15 are connected to the annular groove of the mounting base 21 to achieve uniform spraying of cooling airflow.

[0026] Working principle: The first step is to transport the wood-plastic flooring to the space between two limit frames 7 via the conveyor belt 2. Then, by controlling the extension of two cylinders 6, the two limit frames 7 clamp the two sides of the wood-plastic flooring.

[0027] The second step involves extending the electric push rod 4, causing the electric slide rail 5 and connecting frame 10 to move downwards together until the grinding disc 22 contacts the top of the wood-plastic composite flooring. At this point, the silicone ring at the bottom of the isolation cover 13 is close to the top of the wood-plastic composite flooring. By attaching the silicone ring to the bottom of the isolation cover 13, scratches on the surface of the wood-plastic composite flooring can be prevented. Then, the motor 11 on the connecting frame 10 is started, causing the motor 11 to drive the first synchronous pulley 17 to rotate, which is then transmitted through the synchronous belt 18 and the second synchronous pulley 19. The hollow shaft 12 drives the mounting base 21 and the grinding disc 22 to rotate together, thereby polishing the surface of the wood-plastic flooring. Then, by controlling the electric slide rail 5 to drive the connecting frame 10 and its auxiliary structure to move longitudinally, the grinding disc 22 can polish the wood-plastic flooring longitudinally. After the area is polished, the wood-plastic flooring is released by controlling the limit frame 7, and then the conveyor belt 2 transports the wood-plastic flooring a distance in the forward direction. Then, the new area is polished in the same way, and so on.

[0028] The third step involves sanding the wood-plastic composite flooring. By turning on the air cooler 8, cold air is delivered to the ionizer 20 via a flexible hose. The ionizer 20 ionizes the cold air as it passes through, thus eliminating static electricity. The ionized cold air is then delivered through a pipe to the rotary joint 16 and through the inner hole of the hollow shaft 12 to the groove at the bottom of the mounting base 21. The airflow then passes through the airflow channel 15 and is ejected towards the outside of the sanding disc 22. During this process, the ionized cold air not only... The process of removing static electricity from wood-plastic composite flooring debris also cools the sanding area, preventing the plastic layer from melting and adhering to the sanding disc 22. Secondly, ionized cold airflow sprays wood-plastic composite flooring debris from the inside out through the airflow channel 15, effectively separating the debris from the sanding disc 22 and preventing it from sticking together. Finally, by activating the vacuum cleaner 9 and connecting it to the branch hose and exhaust pipe 14, the wood-plastic composite flooring debris blown to the outside of the sanding disc 22 is removed.

[0029] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A polishing machine for processing wood-plastic composite flooring, characterized in that, include: The main frame (1) is provided with a conveyor belt (2) on the top of the main frame (1), and a cantilever beam (3) is fixedly installed on the top of the main frame (1). It also includes an isolation cover (13), an installation seat (21) is provided inside the isolation cover (13), a connecting frame (10) is fixedly installed on the top of the isolation cover (13), and a hollow shaft (12) is rotatably installed at the bottom of the connecting frame (10). A drive assembly, which is mounted on the connecting frame (10) and is used to drive the hollow shaft (12) to rotate; A limiting component is installed on the main frame (1) and is used to limit the wood-plastic flooring; A cooling assembly is installed between the main frame (1) and the connecting frame (10) and is used to cool the wood-plastic flooring during sanding; An adjustment assembly is mounted on the cantilever beam (3) and is used to adjust the position of the connecting frame (10); A dust collection assembly is installed between the main frame (1) and the isolation cover (13) and is used to remove grinding debris.

2. The polishing machine for processing wood-plastic flooring as described in claim 1, characterized in that, The driving component includes: The motor (11) is fixedly installed on the top inner wall of the connecting frame (10). The output end of the motor (11) is fixedly installed with a first synchronous pulley (17). The outer wall of the hollow shaft (12) is fixedly installed with a second synchronous pulley (19). A synchronous belt (18) is sleeved between the outer walls of the second synchronous pulley (19) and the first synchronous pulley (17).

3. The polishing machine for processing wood-plastic flooring as described in claim 1, characterized in that, The limiting component includes: Two cylinders (6) are fixedly installed on both sides of the top of the main frame (1). Two opposing limit frames (7) are provided on the top of the conveyor belt (2). The opposite sides of the two limit frames (7) are fixed to the output ends of the two cylinders (6).

4. A polishing machine for processing wood-plastic flooring as described in claim 1, characterized in that, The cooling assembly includes: A cooler (8) is fixedly installed on the bottom inner wall of the main frame (1). An ion fan (20) is fixedly installed on the inner wall of the connecting frame (10). The air inlet of the ion fan (20) is connected to the output end of the cooler (8) through a hose. A rotary joint (16) is fixedly installed on the top inner wall of the connecting frame (10). The rotating end of the rotary joint (16) is fixed to the upper port of the hollow shaft (12). The other end of the rotary joint (16) is connected to the air outlet of the ion fan (20) through a pipe.

5. A polishing machine for processing wood-plastic flooring as described in claim 1, characterized in that, The adjustment component includes: An electric slide rail (5) is slidably installed on the inner side of a suspension beam (3). An electric push rod (4) is fixedly installed on the top of the suspension beam (3). The output end of the electric push rod (4) is fixed to the electric slide rail (5). The top of the connecting frame (10) is fixed to the slider part of the electric slide rail (5).

6. A polishing machine for processing wood-plastic flooring as described in claim 1, characterized in that, The dust collection assembly includes: Vacuum cleaner (9), the vacuum cleaner (9) is fixedly installed on the inner bottom of the main frame (1), and multiple exhaust pipes (14) are fixedly installed through the top of the isolation cover (13). The multiple exhaust pipes (14) are connected to the suction end of the vacuum cleaner (9) through branch hoses.

7. A polishing machine for processing wood-plastic flooring as described in claim 1, characterized in that: The mounting base (21) has a grinding disc (22) fixedly installed at the bottom. The grinding disc (22) has multiple airflow grooves (15) at the bottom. The mounting base (21) has a groove at the bottom, which is connected to the inner hole of the hollow shaft (12) and the multiple airflow grooves (15).

8. A polishing machine for processing wood-plastic flooring as described in claim 1, characterized in that: The lower end of the hollow shaft (12) passes through the isolation cover (13) and the mounting base (21) and is fixedly connected to the mounting base (21).

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