Polishing machine for medium density fiberboard production

Abstract

The utility model discloses a polishing machine for medium density fiberboard production, which comprises a worktable, a plurality of electric rollers parallelly mounted on the worktable, limiting devices mounted on two sides of the worktable, a mounting frame fixedly connected to the worktable, a mounting seat slidably mounted on the mounting frame, a driving device for driving the mounting seat, and a lifting cylinder with one end fixedly connected with the mounting seat. The connecting base is fixedly connected with the other end of the lifting cylinder, the polishing motor is fixedly connected to the connecting base, the polishing disc is fixedly connected to an output shaft of the polishing motor, and the collecting device comprises a pipe body which is arranged on the output shaft in a sleeving mode and fixedly connected with the polishing motor, a dust suction hood fixedly connected to the pipe body and an annular brush fixedly connected to the lower end of the dust suction hood. The lower end of the adsorption cavity is open, and the lower end of the adsorption cavity is higher than the lower end of the polishing disc; and the adsorption cavity is connected with a negative pressure device through a hose. The scrap collecting device has the advantage that the scrap collecting rate can be improved.

Description

Technical Field

[0001] This utility model relates to the field of sheet material processing equipment, and in particular to a polishing machine for medium fiberboard (MDF) production. Background Technology

[0002] Polishing machines for MDF production are key pieces of equipment specifically designed to improve the surface smoothness and appearance quality of MDF. During the manufacturing process of MDF, the surface of the sheets after hot pressing may have some roughness or imperfections, requiring polishing machines for finishing. Polishing machines are typically equipped with different types of grinding heads or polishing belts, which can be adjusted to the appropriate coarseness to remove minor unevenness, scratches, and other defects on the sheet surface, achieving the desired gloss level.

[0003] Chinese utility model patent announcement CN 219026917 U discloses a polishing mechanism for MDF production. This equipment incorporates key components such as a suction head and a vacuum cleaner to effectively collect polishing debris generated during the polishing process, thereby improving the working environment and reducing the need for cleaning and maintenance. While this patent helps improve the efficiency and quality of MDF surface treatment, its suction head has a relatively limited adsorption range, mainly focusing on specific areas for debris collection. This means it cannot fully cover all areas around the polishing pad where debris might be generated, resulting in unsatisfactory debris collection. Therefore, in actual operation, some polishing debris is still not collected in a timely and effective manner, leaving room for improvement in the overall debris collection effect. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a polishing machine for the production of medium fiberboard.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A polishing machine for producing medium-density fiberboard (MDF) includes a worktable, multiple electric rollers mounted parallel to each other on the worktable, limiting devices mounted on both sides of the worktable, a mounting frame fixed to the worktable, a mounting seat slidably mounted on the mounting frame, a drive device for driving the mounting seat, a lifting cylinder fixed at one end to the mounting seat, a connecting seat fixed at the other end of the lifting cylinder, a polishing motor fixed to the connecting seat, a polishing disc fixed to the output shaft of the polishing motor, and a collection device. The collection device includes a tube sleeved on the output shaft and fixed to the polishing motor, a dust suction hood fixed to the tube, and an annular brush fixed to the lower end of the dust suction hood. The dust suction hood has an annular suction chamber, the lower end of which is open and higher than the lower end of the polishing disc. The suction chamber is connected to a negative pressure device via a flexible hose.

[0007] Preferably, a connecting disc is fixedly connected to the lower end of the tube, and the dust suction hood is connected to the connecting disc via a threaded structure.

[0008] Preferably, the annular brush includes a connecting ring fixedly connected to the dust cover, and a brush bristle body fixedly connected to the lower end of the connecting ring.

[0009] Preferably, the dust cover is made of transparent plastic.

[0010] Preferably, the driving device includes a lead screw rotatably mounted on the mounting frame, a drive motor fixedly connected to the mounting frame and driven by the lead screw, and a lead screw nut threadedly connected to the lead screw and fixedly connected to the mounting base; the mounting base is mounted on the mounting frame via a linear guide rail.

[0011] Preferably, the limiting device includes an adjusting seat fixedly connected to the worktable, an adjusting rod passing through the adjusting seat and movable relative to the adjusting seat, a limiting nut threaded onto the adjusting rod, and a limiting plate fixedly connected to the adjusting rod for limiting the MDF board.

[0012] The above technical solution has the following advantages:

[0013] This invention features a dust collection hood that effectively covers all surrounding areas where polishing discs generate debris during operation. Therefore, compared to existing equipment, this polishing machine collects debris more comprehensively, leaving virtually no blind spots, significantly reducing the amount of uncollected debris and improving the cleanliness of the working environment. Simultaneously, a ring-shaped brush is specially designed at the lower edge of the dust collection hood. This design effectively blocks debris that is easily splashed out during polishing. When the airflow during polishing carries debris attempting to escape, the ring-shaped brush acts like a soft and dense barrier, intercepting these debris and making them easier for the dust collection hood to capture and collect. This not only improves the debris collection rate but also further reduces the possibility of fine particulate matter spreading into the surrounding air, contributing to an improved overall working environment and providing healthier working conditions for operators. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 for Figure 1 The left view;

[0016] Figure 3 for Figure 1 Top view;

[0017] Figure 4 for Figure 1 Enlarged view of section A;

[0018] Figure 5 This is a partial sectional perspective view of the present invention;

[0019] Figure 6 for Figure 5 Enlarged view of section B;

[0020] In the picture:

[0021] 1-Workbench, 2-Electric roller, 3-Limiting device, 4-Mounting bracket, 5-Mounting seat, 6-Drive device, 7-Lifting cylinder, 8-Connecting seat, 9-Polishing motor, 10-Output shaft, 11-Polishing disc, 12-Tube body, 13-Dust hood, 14-Annular brush, 15-Adsorption chamber, 16-Negative pressure device, 17-Connecting disc, 18-Connecting ring, 19-Brush bristle body, 20-Lead screw, 21-Drive motor, 22-Lead screw nut, 23-Linear guide rail, 24-Adjusting seat, 25-Adjusting rod, 26-Limiting nut, 27-Limiting plate, 28-Hose. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] As shown in the attached figure, a polishing machine for medium fiberboard (MDF) production includes a worktable 1, multiple electric rollers 2 mounted in parallel on the worktable 1, limiting devices 3 mounted on both sides of the worktable 1, a mounting frame 4 fixed to the worktable 1, a mounting seat 5 slidably mounted on the mounting frame 4, a drive device 6 for driving the mounting seat 5, a lifting cylinder 7 fixedly connected to the mounting seat 5 at one end, a connecting seat 8 fixedly connected to the other end of the lifting cylinder 7, a polishing motor 9 fixedly connected to the connecting seat 8, and a polishing wheel fixedly connected to the output shaft 10 of the polishing motor 9. The polishing disc 11 and a collection device include a tube 12 sleeved on the output shaft 10 and fixedly connected to the polishing motor 9, a dust suction hood 13 fixedly connected to the tube 12, and an annular brush 14 fixedly connected to the lower end of the dust suction hood 13; the dust suction hood 13 has an annular suction chamber 15, the lower end of the suction chamber 15 is open and its lower end is higher than the lower end of the polishing disc 11; the suction chamber 15 is connected to a negative pressure device 16 through a flexible hose 28; the negative pressure device 16 can adopt existing technology and will not be described in detail.

[0024] As a further improved technical solution in this embodiment, a connecting plate 17 is fixedly connected to the lower end of the tube body 12, and the dust suction hood 13 is connected to the connecting plate 17 through a threaded structure. By turning the dust suction hood 13, the height position of the dust suction hood 13 can be adjusted to achieve the adjustment of the height position of the annular brush 14 relative to the polishing disc 11.

[0025] As a further improved technical solution in this embodiment, the annular brush 14 includes a connecting ring 18 fixedly connected to the dust cover 13, and a brush bristle body 19 fixedly connected to the lower end of the connecting ring 18; the annular brush 14 with this structure can be easily removed and can be connected to the dust cover 13 by snap-fit.

[0026] As a preferred technical solution in this embodiment, the dust cover 13 is made of transparent plastic, which makes it easy to observe the collection of debris.

[0027] As a specific technical solution in this embodiment, the driving device 6 includes a lead screw 20 rotatably mounted on the mounting frame 4, a drive motor 21 fixedly connected to the mounting frame 4 and driven by the lead screw 20, and a lead screw nut 22 threadedly connected to the lead screw 20 and fixedly connected to the mounting base 5; the mounting base 5 is mounted on the mounting frame 4 via a linear guide rail 23. Obviously, the driving device 6 can also adopt other structural forms of driving components.

[0028] As a specific technical solution in this embodiment, the limiting device 3 includes an adjusting seat 24 fixedly connected to the workbench 1, an adjusting rod 25 passing through the adjusting seat 24 and movable relative to the adjusting seat 24, a limiting nut 26 threaded onto the adjusting rod 25, and a limiting plate 27 fixedly connected to the adjusting rod 25 for limiting the MDF board. By adjusting the position of the limiting plate 27, the limiting of MDF boards of different widths can be achieved.

[0029] During processing, MDF is conveyed from upstream equipment to the electric roller 2. The electric roller 2 conveys the MDF in a step-by-step manner according to the polishing requirements. The polishing disc 11 continuously polishes the MDF under the action of the drive device 6. The brush bristles 19 block the polishing material and simultaneously provide circulating air for the air intake of the negative pressure device 16. The lower end of the brush bristles 19 is flush with or slightly exceeds the lower end of the polishing disc 11, and soft bristles can be used to reduce wear. The polishing dust and debris enter the negative pressure device 16 through the adsorption chamber 15 and the hose 28 to complete the collection of polishing debris.

[0030] The dust hood 13 in this invention can effectively cover all surrounding areas of the polishing disc 11 during operation, thus enabling more comprehensive dust collection with virtually no blind spots. This significantly reduces the amount of uncollected dust and improves the cleanliness of the working environment. Simultaneously, the annular brush 14 at the lower edge of the dust hood 13 effectively blocks dust that is easily splashed during polishing, making it easier for the dust hood 13 to capture and collect it.

[0031] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A polishing machine for producing medium fiberboard (MDF), comprising a worktable (1), a plurality of electric rollers (2) mounted in parallel on the worktable (1), limiting devices (3) mounted on both sides of the worktable (1), a mounting frame (4) fixedly connected to the worktable (1), a mounting seat (5) slidably mounted on the mounting frame (4), a driving device (6) for driving the mounting seat (5), a lifting cylinder (7) fixedly connected at one end to the mounting seat (5), a connecting seat (8) fixedly connected to the other end of the lifting cylinder (7), a polishing motor (9) fixedly connected to the connecting seat (8), a polishing disc (11) fixedly connected to the output shaft (10) of the polishing motor (9), and a collecting device, characterized in that: The collection device includes a tube (12) sleeved on the output shaft (10) and fixedly connected to the polishing motor (9), a dust suction hood (13) fixedly connected to the tube (12), and an annular brush (14) fixedly connected to the lower end of the dust suction hood (13); the dust suction hood (13) has an annular suction chamber (15), the lower end of the suction chamber (15) is open and its lower end is higher than the lower end of the polishing disc (11); the suction chamber (15) is connected to a negative pressure device (16) through a hose (28).

2. The polishing machine for medium fiberboard production according to claim 1, characterized in that: The lower end of the tube (12) is fixedly connected to a connecting plate (17), and the dust hood (13) is connected to the connecting plate (17) by a threaded structure.

3. The polishing machine for medium fiberboard production according to claim 1 or 2, characterized in that: The annular brush (14) includes a connecting ring (18) fixedly connected to the dust cover (13), and a bristle body (19) fixedly connected to the lower end of the connecting ring (18).

4. The polishing machine for medium fiberboard production according to claim 1 or 2, characterized in that: The dust cover (13) is made of transparent plastic.

5. The polishing machine for medium fiberboard production according to claim 1 or 2, characterized in that: The drive device (6) includes a lead screw (20) rotatably mounted on the mounting frame (4), a drive motor (21) fixedly connected to the mounting frame (4) and driven by the lead screw (20), and a lead screw nut (22) threadedly connected to the lead screw (20) and fixedly connected to the mounting seat (5); the mounting seat (5) is mounted on the mounting frame (4) via a linear guide rail (23).

6. The polishing machine for medium fiberboard production according to claim 3, characterized in that: The drive device (6) includes a lead screw (20) rotatably mounted on the mounting frame (4), a drive motor (21) fixedly connected to the mounting frame (4) and driven by the lead screw (20), and a lead screw nut (22) threadedly connected to the lead screw (20) and fixedly connected to the mounting seat (5); the mounting seat (5) is mounted on the mounting frame (4) via a linear guide rail (23).

7. The polishing machine for medium fiberboard production according to claim 1 or 2, characterized in that: The limiting device (3) includes an adjusting seat (24) fixedly connected to the worktable (1), an adjusting rod (25) passing through the adjusting seat (24) and movable relative to the adjusting seat (24), a limiting nut (26) threaded onto the adjusting rod (25), and a limiting plate (27) fixedly connected to the adjusting rod (25) for limiting the medium fiberboard.

8. The polishing machine for medium fiberboard production according to claim 3, characterized in that: The limiting device (3) includes an adjusting seat (24) fixedly connected to the worktable (1), an adjusting rod (25) passing through the adjusting seat (24) and movable relative to the adjusting seat (24), a limiting nut (26) threaded onto the adjusting rod (25), and a limiting plate (27) fixedly connected to the adjusting rod (25) for limiting the medium fiberboard.

Images