A surface finishing device for veneered density boards

Abstract

The utility model discloses a surface finishing device of veneer density board relates to veneer density board processing technical field. The utility model discloses a bottom plate, the bottom plate top fixedly connected with the cylinder, the cylinder output fixedly connected with finishing frame, finishing frame one side is provided with multistep polishing mechanism, and the multistep polishing mechanism includes the carousel that rotates and is connected with finishing frame one side. The utility model discloses through the cooperation of integrated multistep polishing mechanism and adjusting mechanism, and three different roughness's polishing roller of rough grinding, fine grinding and fine grinding are integrated on the same carousel structure, and the continuous execution of multistage polishing procedure is realized through the rotation switching, and the space occupancy needed by traditional multistation series connection layout is effectively reduced, and the overall volume and floor area of equipment are reduced significantly, so that the problem that each station in traditional multistation equipment needs to be configured independent dust removal system is solved, and the structure is simplified, and the manufacturing cost and maintenance difficulty are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of surface-finished MDF processing technology, and in particular relates to a surface trimming device for surface-finished MDF. Background Technology

[0002] Veneered MDF, a widely used base material in furniture manufacturing and interior decoration, typically has a decorative veneer to enhance its aesthetics and durability. After the veneer process is completed, minor unevenness, adhesive residue, or attached impurities may remain on the surface of the board. To obtain a final product with extremely high flatness and smoothness, a surface finishing device is required to finish the surface.

[0003] Existing surface finishing processes for veneered MDF generally employ multi-stage grinding, typically consisting of a frame and sequentially arranged coarse grinding, fine grinding, and precision grinding units. Each unit is equipped with grinding rollers of a specific roughness. During operation, the veneered MDF is conveyed by a transport system and passes through these grinding units sequentially. Through progressive grinding from coarse to fine, defects are gradually eliminated to achieve an ideal surface. This multi-stage sequential operation mode has significant limitations. Each grinding station generates a large amount of dust and debris during operation. To prevent the accumulation of these waste chips from affecting grinding accuracy, wearing down equipment, or even polluting the environment, a negative pressure chip removal mechanism must be independently configured near each grinding roller. This results in a complex internal structure, dense piping, and a large overall footprint, significantly increasing the size of the device and production costs.

[0004] To address this issue, we provide a surface finishing device for laminated MDF to solve the aforementioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a surface trimming device for veneered MDF. Through the cooperation of a multi-step grinding mechanism and an adjustment mechanism, it solves the problems of low integration, large footprint, and increased cost in existing veneered MDF surface trimming devices.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a surface finishing device for laminated MDF, comprising a base plate, a cylinder fixedly connected to the top of the base plate, and a finishing frame fixedly connected to the output end of the cylinder; a multi-step grinding mechanism is provided on one side of the finishing frame, the multi-step grinding mechanism including a turntable rotatably connected to one side of the finishing frame, a servo motor fixedly connected to one side of the turntable, a first gear fixedly connected to the output end of the servo motor, a drive rod rotatably connected to one side of the turntable, a second gear fixedly connected to the surface of the drive rod, a protective cover disposed on the surface of the turntable, a first grinding roller disposed on one side of the protective cover, a second grinding roller disposed on the top of the first grinding roller, and a third grinding roller disposed on one side of the second grinding roller; an adjustment mechanism is provided on one side of the grinding roller, the adjustment mechanism including a fixed box fixedly connected to one side of the finishing frame, a drive motor fixedly connected to one side inside the fixed box, a third gear fixedly connected to the output end of the drive motor, a rotating rod fixedly connected to the other side of the turntable, a fourth gear fixedly connected to the surface of the rotating rod, and a limiting component disposed on one side of the fixed box.

[0008] The present invention is further configured such that the limiting component includes a hydraulic cylinder fixedly connected to the top of the trimming frame, a limiting rod fixedly connected to the output end of the hydraulic cylinder, and a limiting groove formed on the surface of the turntable.

[0009] The present invention is further configured such that a guide rod is provided on one side of the trimming frame, and the trimming frame is sleeved on the surface of the guide rod.

[0010] The present invention is further configured such that the first gear and the second gear mesh with each other, and the protective cover and the trimming frame are rotatably connected.

[0011] The present invention is further configured such that the drive rod extends from the side away from the turntable to the side of the protective cover away from the turntable, and the drive rod and the protective cover are rotatably connected.

[0012] The present invention is further configured such that the first grinding roller, the second grinding roller and the third grinding roller are evenly distributed circumferentially on one side of the protective cover, and the surface roughness of the first grinding roller, the second grinding roller and the third grinding roller are different.

[0013] The present invention is further configured such that the third gear and the fourth gear mesh with each other, and the trimming frame and the fixed box are rotatably connected to the rotating rod.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model integrates a multi-step grinding mechanism with an adjustment mechanism, integrating three grinding rollers with different roughnesses—coarse grinding, fine grinding, and precision grinding—on the same turntable structure. By rotating and switching, it achieves continuous execution of multi-level grinding processes, effectively reducing the space required by traditional multi-station serial layouts, significantly reducing the overall size and floor space of the equipment. This solves the problem that each station in traditional multi-station equipment needs to be equipped with an independent dust removal system, simplifies the structure, reduces manufacturing costs and maintenance difficulty, and effectively prevents dust and debris from entering the equipment by using a single protective cover, thus improving the stability and service life of the equipment.

[0016] 2. This utility model locks the position of the turntable by using a hydraulic cylinder and a limit rod, ensuring stable operation during grinding, improving processing accuracy and operational safety, and is suitable for high-requirement surface finishing of veneered MDF.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a perspective view of a surface finishing device for veneered MDF.

[0020] Figure 2 This is a cross-sectional view of a protective cover in a surface finishing device for laminated MDF.

[0021] Figure 3 This is a diagram showing the movement of a limiting rod in a surface finishing device for laminated MDF.

[0022] Figure 4 This is a cross-sectional view of a fixing box in a surface finishing device for veneered MDF.

[0023] Figure 5 This is a rear view of a turntable in a surface finishing device for veneered MDF.

[0024] In the attached diagram: 1. Base plate; 2. Cylinder; 3. Dressing frame; 4. Multi-step grinding mechanism; 41. Turntable; 42. Servo motor; 43. First gear; 44. Drive rod; 45. Second gear; 46. First grinding roller; 47. Second grinding roller; 48. Third grinding roller; 49. Protective cover; 5. Adjustment mechanism; 51. Fixing box; 52. Drive motor; 53. Third gear; 54. Rotating rod; 55. Fourth gear; 56. Limiting assembly; 561. Hydraulic cylinder; 562. Limiting rod; 563. Limiting groove; 6. Guide rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0026] Please see Figures 1-5 This utility model is a surface finishing device for laminated MDF, including a base plate 1, a cylinder 2 fixedly connected to the top of the base plate 1, and a finishing frame 3 fixedly connected to the output end of the cylinder 2; a multi-step grinding mechanism 4 is provided on one side of the finishing frame 3, the multi-step grinding mechanism 4 includes a turntable 41 rotatably connected to one side of the finishing frame 3, a servo motor 42 fixedly connected to one side of the turntable 41, a first gear 43 fixedly connected to the output end of the servo motor 42, a drive rod 44 rotatably connected to one side of the turntable 41, a second gear 45 fixedly connected to the surface of the drive rod 44, and a protective cover 49 provided on the surface of the turntable 41. A first grinding roller 46 is placed on one side of the protective cover 49, a second grinding roller 47 is set on the top of the first grinding roller 46, and a third grinding roller 48 is set on one side of the second grinding roller 47; an adjustment mechanism 5 is provided on one side of the grinding roller, the adjustment mechanism 5 includes a fixed box 51 fixedly connected to one side of the trimming frame 3, a drive motor 52 fixedly connected to one side inside the fixed box 51, a third gear 53 fixedly connected to the output end of the drive motor 52, a rotating rod 54 fixedly connected to the other side of the turntable 41, a fourth gear 55 fixedly connected to the surface of the rotating rod 54, and a limiting component 56 set on one side of the fixed box 51.

[0027] As a preferred embodiment of the above: the base plate 1 has a fixing hole at the top; the turntable 41 is rotatably connected to the dressing frame 3 via a bearing; the drive rod 44 is rotatably connected to the turntable 41 via a bearing; the surface roughness of the first grinding roller 46, the second grinding roller 47, and the third grinding roller 48 decreases sequentially, achieving progressive grinding from coarse to fine; the fixing box 51 is a transparent box; both the protective cover 49 and the top of the fixing box 51 have heat dissipation holes; a dustproof net is fixedly connected inside the heat dissipation holes; and the rotating rod 54 is located away from the turntable. One end of 41 extends into the fixed box 51. The gear ratio between the fourth gear 55 and the third gear 53 is 3:1. Cylinder 2 controls the lifting and lowering of the dressing frame 3 to adjust the grinding height. The dressing frame 3 carries the multi-step grinding mechanism 4 and the adjustment mechanism 5. It is the main structure connecting the various functional modules, ensuring overall rigidity and motion stability. Turntable 41 serves as the grinding mounting platform and can rotate under the drive of the adjustment mechanism 5 to achieve the cutting of the first grinding roller 46, the second grinding roller 47, and the third grinding roller 48. In this system, servo motor 42 provides speed control, drives first gear 43, and then drives drive rod 44 and corresponding grinding rollers to rotate. First gear 43 and second gear 45 form a transmission system, transmitting the power of servo motor 42 to drive rod 44 to realize the rotational movement of first grinding roller 46, second grinding roller 47 and third grinding roller 48. Protective cover 49 encapsulates the grinding rollers to prevent dust from entering and protect the internal structure. Fixed box 51 houses drive motor 52 and its transmission components, providing structural protection and installation positioning. Drive motor 52 drives third gear 53, which drives rotating rod 54 and turntable 41 to rotate through fourth gear 55, realizing the switching of the work positions of first grinding roller 46, second grinding roller 47 and third grinding roller 48. Third gear 53 and fourth gear 55 form another transmission system, transmitting the rotational movement of drive motor 52 to rotating rod 54 to control the angle of turntable 41. Rotating rod 54 connects fourth gear 55 and turntable 41 to transmit torque and realize the rotational positioning of turntable 41. Example

[0028] Please see Figures 1-5Based on embodiment 1, the limiting component 56 includes a hydraulic cylinder 561 fixedly connected to the top of the trimming frame 3, a limiting rod 562 fixedly connected to the output end of the hydraulic cylinder 561, a limiting groove 563 opened on the surface of the turntable 41, a guide rod 6 provided on one side of the trimming frame 3, the trimming frame 3 sleeved on the surface of the guide rod 6, the first gear 43 and the second gear 45 meshing with each other, the protective cover 49 rotatably connected to the trimming frame 3, the drive rod 44 extending from the side away from the turntable 41 to the side of the protective cover 49 away from the turntable 41, the drive rod 44 rotatably connected to the protective cover 49, the first grinding roller 46, the second grinding roller 47 and the third grinding roller 48 are evenly distributed circumferentially on one side of the protective cover 49, the surface roughness of the first grinding roller 46, the second grinding roller 47 and the third grinding roller 48 are different, the third gear 53 and the fourth gear 55 meshing with each other, and the trimming frame 3 and the fixed box 51 are rotatably connected to the rotating rod 54.

[0029] As a preferred embodiment of the above: the output end of the hydraulic cylinder 561 extends into the interior of the protective cover 49 and is connected to the limiting rod 562. The limiting rod 562 and the limiting groove 563 cooperate to limit the turntable 41. The surface of the protective cover 49 also has a limiting groove 563, and the limiting groove 563 on its surface corresponds to the turntable 41. A dust cover is provided on the surface of the protective cover 49, and the dust cover is in close contact with the protective cover 49 to seal and protect the limiting groove 563 on the surface of the protective cover 49. The dust cover is fixedly connected to the trimming frame 3. The bottom of the guide rod 6 is fixedly connected to the base plate 1. The drive rod 44 There are three grinding rollers: the first grinding roller 46, the second grinding roller 47, and the third grinding roller 48 are all fixedly connected to the drive rod 44. The drive rod 44 is rotatably connected to the protective cover 49 via bearings. The dressing frame 3 and the fixed box 51 are rotatably connected to the rotating rod 54 via bearings. The hydraulic cylinder 561 controls the extension and retraction of the limit rod 562 to lock and release the turntable 41, ensuring the stability of the work position during grinding. The limit rod 562 and the limit groove 563 work together. After the turntable 41 rotates to the position, it is inserted into the limit groove 563 to prevent the turntable 41 from rotating during grinding, ensuring processing accuracy and safety.

[0030] The working principle of this utility model is as follows: First, the equipment is installed and fixed in the working position through the fixing holes on the base plate 1. The surface of the veneer MDF to be processed is sent to the bottom of the first grinding roller 46 by the conveying system. The servo motor 42 is started, and the first grinding roller 46 is driven to rotate through the meshing transmission of the first gear 43 and the second gear 45 to perform rough grinding on the surface of the board.

[0031] After rough grinding, hydraulic cylinder 561 actuates, retracting limit rod 562 from limit groove 563 and releasing the lock on turntable 41. Then, drive motor 52 starts, driving rotating rod 54 and turntable 41 to rotate 60 degrees clockwise through the transmission of third gear 53 and fourth gear 55, switching the second grinding roller 47 to the working position. Hydraulic cylinder 561 actuates again, inserting limit rod 562 into the corresponding limit groove 563, locking the position of turntable 41, and starting the second grinding roller 47 for fine grinding. Repeating the above switching and locking process, the third grinding roller 48 can be switched to the working position for fine grinding of the board. Throughout the process, the multi-stage grinding process is switched at a single station by rotating turntable 41, eliminating the need for multiple independent stations and supporting dust collection systems. This saves space and reduces equipment complexity and cost, making it suitable for surface finishing of veneered MDF.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A surface finishing device for laminated MDF, comprising a base plate (1), characterized in that: A cylinder (2) is fixedly connected to the top of the base plate (1), and a trimming frame (3) is fixedly connected to the output end of the cylinder (2). A multi-step polishing mechanism (4) is provided on one side of the trimming frame (3). The multi-step polishing mechanism (4) includes a turntable (41) rotatably connected to one side of the trimming frame (3), a servo motor (42) fixedly connected to one side of the turntable (41), a first gear (43) fixedly connected to the output end of the servo motor (42), a drive rod (44) rotatably connected to one side of the turntable (41), a second gear (45) fixedly connected to the surface of the drive rod (44), a protective cover (49) provided on the surface of the turntable (41), a first polishing roller (46) provided on one side of the protective cover (49), a second polishing roller (47) provided on the top of the first polishing roller (46), and a third polishing roller (48) provided on one side of the second polishing roller (47). An adjustment mechanism (5) is provided on one side of the grinding roller. The adjustment mechanism (5) includes a fixed box (51) fixedly connected to one side of the trimming frame (3), a drive motor (52) fixedly connected to one side inside the fixed box (51), a third gear (53) fixedly connected to the output end of the drive motor (52), a rotating rod (54) fixedly connected to the other side of the turntable (41), a fourth gear (55) fixedly connected to the surface of the rotating rod (54), and a limiting component (56) provided on one side of the fixed box (51).

2. The surface finishing device for laminated MDF according to claim 1, characterized in that: The limiting component (56) includes a hydraulic cylinder (561) fixedly connected to the top of the trimming frame (3), a limiting rod (562) fixedly connected to the output end of the hydraulic cylinder (561), and a limiting groove (563) opened on the surface of the turntable (41).

3. The surface finishing device for veneered MDF according to claim 1, characterized in that: A guide rod (6) is provided on one side of the trimming frame (3), and the trimming frame (3) is sleeved on the surface of the guide rod (6).

4. The surface finishing device for laminated MDF according to claim 1, characterized in that: The first gear (43) meshes with the second gear (45), and the protective cover (49) is rotatably connected to the trimming frame (3).

5. The surface finishing device for laminated MDF according to claim 1, characterized in that: The drive rod (44) extends from the side away from the turntable (41) to the side of the protective cover (49) away from the turntable (41), and the drive rod (44) and the protective cover (49) are rotatably connected.

6. The surface finishing device for veneered MDF according to claim 1, characterized in that: The first grinding roller (46), the second grinding roller (47) and the third grinding roller (48) are evenly distributed in a circle on one side of the protective cover (49), and the surface roughness of the first grinding roller (46), the second grinding roller (47) and the third grinding roller (48) is different.

7. The surface finishing device for veneered MDF according to claim 1, characterized in that: The third gear (53) meshes with the fourth gear (55), and the trimming frame (3) and the fixed box (51) are rotatably connected to the rotating rod (54).

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