A furniture board surface polishing device

Abstract

The application discloses a furniture plate surface polishing device and relates to the field of furniture plate polishing.The furniture plate surface polishing device comprises a polishing frame, a polishing mechanism arranged in the polishing frame, a transmission roller, a pressing roller connected to the side of the transmission roller, multiple groups of transmission rollers, an inner side supporting mechanism arranged in the polishing frame and a transmission roller connected in the polishing frame.The transmission roller comprises multiple groups of transmission rollers, which are arranged in parallel between the groups of transmission rollers.The outer side of the multiple groups of transmission rollers is wound with sandpaper.The transmission roller is in transmission connection with a driving mechanism.The sandpaper is wound on the transmission roller, and the polishing surface of the sandpaper faces the outer side and is pressed by the pressing roller.The transmission roller rotates to drive the sandpaper to move quickly like a belt, so that the plate is polished in a mechanical mode, and the polishing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of furniture board sanding, specifically to a furniture board surface sanding device. Background Technology

[0002] In the processing of furniture boards, in order to achieve a glossy surface, it is necessary to locally polish the raised parts after cutting to remove burrs and bumps. Existing technology uses sandpaper friction polishing, which is divided into manual polishing and mechanical polishing. Mechanical polishing uses hard grinding wheels.

[0003] For example, patent application CN110216528A discloses a flexible sanding process for the oil film coating of wooden furniture. This flexible sanding process aims to solve the technical problems of existing technology, where when the wooden furniture panels have complex shapes or have raised or recessed carved panels, sanding can only be done manually, making it difficult to achieve mechanized or automated sanding. Furthermore, the precision of sanding force control is difficult to achieve, resulting in insufficient fullness of the wooden furniture coating. The flexible sanding process includes three steps: sandblasting rough sanding, self-weight fine sanding, and manual finishing. By combining sandblasting rough sanding with self-weight fine sanding and manual finishing, this flexible sanding process can achieve multi-directional and multi-angle sanding of irregularly shaped wooden furniture panels. At the same time, it can stably and evenly control the precision of sanding force, ensuring the fullness of the wooden furniture coating. In addition, it can reduce manual involvement in the sanding process, reducing the harm of sanding dust and odors to the human body.

[0004] However, the flexible polishing process still requires manual finishing, resulting in a large workload and low efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a furniture board surface sanding device to solve the technical problem mentioned in the background art that flexible sanding requires manual fine-tuning.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A furniture board surface sanding device includes a sanding frame, a sanding mechanism inside the sanding frame, a transmission roller, a pressure roller connected to the side of the transmission roller, multiple sets of transmission rollers arranged in parallel, sandpaper wrapped around the outside of the multiple sets of transmission rollers, the transmission rollers being connected to a drive mechanism, and an inner support mechanism located inside the sanding frame.

[0008] Preferably, the grinding frame is a triangular box with three sets of transmission rollers. One side of the grinding frame is open, and a set of transmission rollers is set at each end of the opening. A slide groove is set at one end of the grinding frame, and a slide frame is slidably connected in the slide groove. The slide frame is connected to a screw threaded to one end of the slide groove by a spring. The slide frame is rotatably connected to another transmission roller, and the transmission roller connected to the slide frame is connected to the drive mechanism.

[0009] Preferably, the driving mechanism is a motor, which is slidably connected to the side of the grinding frame.

[0010] Preferably, the transmission roller is provided with a limiting groove on its side, and the clamping roller includes a shaft fixed on the grinding frame, a bushing rotatably connected to the outside of the shaft, and a clamping airbag fixedly connected to the outside of the bushing.

[0011] Preferably, the grinding frame is provided with a chip removal mechanism, which includes an air duct disposed within the grinding frame, the air duct being disposed on both sides of the sandpaper, the air duct being connected to an air duct, and the air duct being provided with fan blades that are connected to the motor drive.

[0012] Preferably, the air duct includes a first hollow plate disposed on the outside of the sandpaper, and the side of the first hollow plate near the outside of the sandpaper is provided with an air hole.

[0013] Preferably, the inner support mechanism includes a second hollow plate disposed on the inner side of the sandpaper, and the side of the second hollow plate closest to the inner side of the sandpaper is provided with air holes.

[0014] Preferably, the air duct and the air cylinder are connected by a flexible hose, the air cylinder is slidably connected to the grinding frame, and the air duct is coaxially and fixedly connected to the output shaft of the motor.

[0015] Preferably, a handle is fixedly connected to the grinding stand, and an arc-shaped notch is provided on the side of the opening of the grinding stand.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. Connect a drive roller inside the grinding frame. Wrap the sandpaper around the drive roller so that the grinding surface of the sandpaper faces outward. Use a pressure roller to press it down. The rotation of the drive roller drives the sandpaper to move quickly like a belt, thereby realizing the mechanical grinding of the board.

[0018] 2. Three sets of transmission rods are set, and one set of transmission rollers is slidably connected to the slide groove on the grinding frame through the slide. The slide is connected to the slide groove through the spring, which can change the pressure to make the sandpaper cover a larger area, making it more suitable for grinding the surface of the board with curvature. The spring is connected to the screw, and the spring deformation can be adjusted by rotating the screw, thereby adjusting the spring force, so as to control the pressure of the sandpaper on the surface of the board.

[0019] 3. A first hollow plate is set up and connected to the air duct. The air blown by the first hollow plate can act on the outside of the sandpaper and blow off the wood chips adhering to it. A second hollow plate is set up on the inside of the sandpaper and connected to the air duct to generate air pressure. The air pressure is used to support the inner end of the sandpaper so that its end can enter between the outer sandpaper and the drive roller, thereby preventing the sandpaper from curling and ensuring the sandpaper rotates in a circular manner. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention;

[0021] Figure 2 This is a cross-sectional view of the grinding frame of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the transmission roller of the present invention;

[0023] Figure 4 This is a cross-sectional view of the airbag of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the sandpaper of the present invention wound on the transmission roller;

[0025] Figure 6 This is a longitudinal sectional view of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of the carriage of the present invention;

[0027] Figure 8 This is a cross-sectional view of the ventilation duct of the present invention;

[0028] Figure 9 This is a cross-sectional view of the second hollow plate of the present invention;

[0029] In the diagram: 1. Grinding frame; 2. Drive mechanism; 21. Motor; 22. Connecting frame; 221. Second grip; 3. Sandpaper; 4. Transmission roller; 41. Limiting groove; 5. Pressure roller; 51. Airbag; 52. Shaft; 53. Bushing; 6. First hollow plate; 7. Second hollow plate; 71. Air hole; 8. Air duct; 81. Fan blade; 82. Hose; 9. Slide; 91. Spring; 92. Screw. Detailed Implementation

[0030] Example 1

[0031] like Figure 1-9As shown, a furniture board surface sanding device includes a sanding frame 1, a sanding mechanism inside the sanding frame 1, a sanding mechanism including a transmission roller 4, a pressure roller 5 connected to the side of the transmission roller 4, multiple sets of transmission roller 4 arranged in parallel, sandpaper 3 wrapped around the outside of the multiple sets of transmission roller 4, the transmission roller 4 being connected to a drive mechanism 2, and an inner support mechanism located inside the sanding frame 1; the sanding frame 1 is a triangular box, with three sets of transmission roller 4, an opening on one side of the sanding frame 1, and a set of transmission roller 4 located at each end of the opening, a slide groove at one end of the sanding frame 1, a slide 9 slidably connected in the slide groove, the slide 9 being connected to a screw 92 threaded to one end of the slide groove via a spring 91, the slide 9 being rotatably connected to another transmission roller 4, and the transmission roller 4 connected to the slide 9 being connected to the drive mechanism 2; the drive mechanism 2 is a motor 21, the motor 21 being slidably connected to the side of the sanding frame 1.

[0032] Before sanding, one end of the sandpaper 3 is passed between the mating drive roller 4 and the pressure roller 5, sequentially passing through the three sets of drive rollers 4. The length of the sandpaper 3 is greater than the sum of the perimeter of the triangle formed by the three sets of drive rollers 4 and the distance between any two sets of drive rollers 4. That is, when one end of the sandpaper 3 is between one set of drive rollers 4 and the pressure roller 5, the other end of the sandpaper 3 has not yet entered the previous set of drive rollers 4 and the pressure roller 5. This ensures stable transmission and prevents the sandpaper 3 from detaching from the pressure roller 5 before one end enters the space between the drive roller 4 and the pressure roller 5. During sanding, hold the handle so that the open side of the sanding frame 1 contacts the board. The drive mechanism 2 drives the drive roller 4 to rotate, causing the sandpaper 3 to rotate rapidly around the drive roller 4. The movement of the sandpaper 3 is the same as that of the conveyor belt. The friction frame is placed on the board, with its bottom higher than the bottom of the drive roller, allowing the sandpaper 3 to contact the board. Contact is achieved through friction. During friction, when encountering a protrusion, the sandpaper 3 is under tension, causing the contact area between the sandpaper 3 and the protrusion to bulge. In this process, the transmission roller 4 connected to the slide 9 slides downward relative to the slide groove, and the spring 91 is stretched, thereby increasing the contact pressure between the sandpaper 3 and the protrusion and accelerating the sanding rate of the protrusion. When sanding curved plates or the edges of plates, the sandpaper 3 is placed on the plate and pressure is applied. The slide 9 slides relative to the friction frame, increasing the contact area between the sandpaper 3 and the plate, thereby accelerating the sanding of the plate. The spring 91 is connected to the screw 92 threaded to the top of the slide groove. The initial deformation of the spring 91 can be changed by rotating the screw 92, thereby changing the elastic force of the spring 91 and thus changing the pressure of the sandpaper 3 on the plate. By setting a notch, the sandpaper 3 can still be used on plates with a certain curvature after a certain deformation.

[0033] Example 2

[0034] like Figure 1-9As shown, a furniture board surface sanding device includes a sanding frame 1, a sanding mechanism inside the sanding frame 1, and a sanding mechanism including a transmission roller 4. A pressure roller 5 is connected to the side of the transmission roller 4. Multiple sets of transmission rollers 4 are arranged parallel to each other. Sandpaper 3 is wound around the outside of the multiple sets of transmission rollers 4. The transmission rollers 4 are connected to a drive mechanism 2. An inner support mechanism is located inside the sanding frame 1. The sanding frame 1 is a triangular box. There are three sets of transmission rollers 4. One side of the sanding frame 1 is open, and a set of transmission rollers 4 is located at each end of the opening. A slide groove is provided at one end, and a slide 9 is slidably connected in the slide groove. The slide 9 is connected to a screw 92 threaded to one end of the slide groove via a spring 91. The slide 9 is rotatably connected to another transmission roller 4. The transmission roller 4 connected to the slide 9 is connected to the drive mechanism 2. The drive mechanism 2 is a motor 21. The motor 21 is slidably connected to the side of the grinding frame 1. A limit groove 41 is provided on the side of the transmission roller 4. The pressure roller 5 includes a shaft 52 fixed on the grinding frame 1. A bushing 53 is rotatably connected to the outside of the shaft 52. A pressure airbag 51 is fixedly connected to the outside of the bushing 53.

[0035] A limiting groove 41 is provided inside the transmission roller 4. The sandpaper 3 is wrapped in the limiting groove 41 and pressed by the airbag 51 to keep the sandpaper 3 axially fixed to the transmission roller 4. During the transmission process, the airbag 51 is pressed on the side of the transmission roller 4, and the sandpaper 3 is pressed on the outside of the airbag 51 to prevent the sandpaper 3 from coming off during rotation.

[0036] Example 3

[0037] like Figure 1-9As shown, a furniture board surface sanding device includes a sanding frame 1, a sanding mechanism inside the sanding frame 1, and a sanding mechanism including a transmission roller 4. A pressure roller 5 is connected to the side of the transmission roller 4. Multiple sets of transmission rollers 4 are arranged parallel to each other. Sandpaper 3 is wound around the outside of the multiple sets of transmission rollers 4. The transmission rollers 4 are connected to a drive mechanism 2. An inner support mechanism is located inside the sanding frame 1. The sanding frame 1 is a triangular box. There are three sets of transmission rollers 4. One side of the sanding frame 1 is open, and a set of transmission rollers 4 is located at each end of the opening. A slide groove is provided at one end of the sanding frame 1, and a slide 9 is slidably connected in the slide groove. The slide 9 is connected to a screw 92 threaded to one end of the slide groove via a spring 91. The slide 9 is rotatably connected to another transmission roller 4. The transmission roller 4 connected to the slide 9 is connected to the drive mechanism 2. The drive mechanism 2 is a motor 21, which is slidably connected to the side of the sanding frame 1. A limiting groove 41 is provided. The pressure roller 5 includes a shaft 52 fixed on the grinding frame 1. A bushing 53 is rotatably connected to the outside of the shaft 52. A pressure airbag 51 is fixedly connected to the outside of the bushing 53. A chip removal mechanism is provided inside the grinding frame 1. The chip removal mechanism includes an air duct provided inside the grinding frame 1. The air duct is located on both sides of the sandpaper 3. The air duct is connected to the air duct 8. A fan blade 81 connected to the motor 21 is provided inside the air duct. The air duct includes a first hollow plate 6 located on the outside of the sandpaper 3. An air hole 71 is provided on the side of the first hollow plate 6 near the outside of the sandpaper 3. The inner support mechanism includes a second hollow plate 7 located on the inside of the sandpaper 3. An air hole 71 is provided on the side of the second hollow plate 7 near the inside of the sandpaper 3. The air duct and the air duct 8 are connected through a hose 82. The air duct 8 is slidably connected to the grinding frame 1. The air duct is coaxially fixedly connected to the output shaft of the motor 21. The air duct 8 is fixed on the slide 9.

[0038] The drive mechanism 2 uses a motor 21, which is slidably connected to the side of the grinding frame 1 via a connecting frame 22. A second handle 221 is fixedly connected to the connecting frame 22, and a first handle is fixed to the top of the grinding frame 1. A slider fixed on the connecting frame 22 is slidably connected to a slide rail on the side of the grinding frame 1. The output shaft of the motor 21 is coaxially and fixedly connected to the fan shaft of the fan blade 81 rotatably connected in the air duct 8. The fan shaft is coaxially and fixedly connected to the transmission roller 4 rotatably connected to the slide 9. When the motor 21 rotates, it can drive the fan blade 81 to rotate, causing the air duct 8 to draw in airflow from one end. The airflow enters the first hollow plate 6 and the second hollow plate 7 through the hose 82. The airflow is discharged from the air holes 71 on the sides of the first hollow plate 6 and the second hollow plate 7. The airflow from the first hollow plate 6 acts on the outside of the sandpaper 3, which can blow off the sawdust adhering to the sandpaper 3. The airflow discharged from the air holes 71 of the second hollow plate 7 acts on the inside of the sandpaper 3. This airflow can play a supporting role, so that when the sandpaper 3 rotates, one end of it moves from the bottom drive roller 4 to the upper drive roller 4. The end of the sandpaper 3 is close to the inside of the outside of the sandpaper 3, so that the end can smoothly enter between the upper drive roller 4 and the pressure roller 5, ensuring the smooth operation of the sandpaper 3. It has stable operation and timely cleaning to ensure the surface friction of the sandpaper 3.

Claims

1. A furniture board surface sanding device, characterized in that, It includes a grinding frame (1), a grinding mechanism is provided inside the grinding frame (1), the grinding mechanism includes a transmission roller (4), a pressure roller (5) is connected to the side of the transmission roller (4), the transmission roller (4) includes multiple sets, the transmission rollers (4) are arranged in parallel, the multiple sets of transmission rollers (4) are wrapped with sandpaper (3) on the outside, the transmission rollers (4) are connected to the drive mechanism (2) for transmission, and an inner support mechanism is provided inside the grinding frame (1); The grinding frame (1) is a triangular box with three sets of transmission rollers (4). The grinding frame (1) has an opening on one side, and a set of transmission rollers (4) is set at each end of the opening. A slide groove is set at one end of the grinding frame (1), and a slide frame (9) is slidably connected in the slide groove. The slide frame (9) is connected to the screw (92) threaded to one end of the slide groove through a spring (91). The slide frame (9) is rotatably connected to another transmission roller (4), and the transmission roller (4) connected to the slide frame (9) is connected to the drive mechanism (2). The transmission roller (4) has a limiting groove (41) on its side. The pressing roller (5) includes a shaft (52) fixed on the grinding frame (1), a bushing (53) rotatably connected to the outside of the shaft (52), and a pressing airbag (51) fixedly connected to the outside of the bushing (53). The grinding frame (1) is equipped with a chip removal mechanism, which includes an air duct installed in the grinding frame (1). The air duct is installed on both sides of the sandpaper (3). The air duct is connected to the air duct (8). The air duct (8) is equipped with a fan blade (81) that is connected to the motor (21) for transmission. The air duct includes a first hollow plate (6) disposed on the outside of the sandpaper (3), and an air hole (71) is provided on the side of the first hollow plate (6) near the outside of the sandpaper (3); The inner support mechanism includes a second hollow plate (7) disposed inside the sandpaper (3), and the second hollow plate (7) has a vent (71) on the side near the inside of the sandpaper (3).

2. The furniture board surface sanding device according to claim 1, characterized in that: The drive mechanism (2) is a motor (21), which is slidably connected to the side of the grinding frame (1).

3. The furniture board surface sanding device according to claim 1, characterized in that: The air duct and the air tube (8) are connected by a flexible hose (82). The air tube (8) is slidably connected to the grinding frame (1). The air duct and the output shaft of the motor (21) are coaxially fixedly connected.

4. The furniture board surface sanding device according to claim 1, characterized in that: A handle is fixedly connected to the grinding stand (1), and an arc-shaped notch is provided on the side of the opening of the grinding stand (1).

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