Polishing device for intelligent manufacturing of wooden cabinet plate

Abstract

The invention discloses a grinding device for intelligent manufacturing of a wooden cabinet plate, and belongs to the field of plate grinding, the grinding device for intelligent manufacturing of the wooden cabinet plate comprises a grinding table, an electric push rod is assembled on the other side of the grinding table, a rotating motor is assembled at the bottom of the electric push rod, and a first connecting rod is assembled at an output shaft of the rotating motor; three grinding assemblies distributed in an annular mode are assembled on the outer side of the first connecting rod. By arranging the three annularly arranged grinding assemblies, when the grinding assemblies are driven by the electric push rod to enter holes with different hole diameters, according to the change of the rotating speed of the rotating motor, under the action of centrifugal force, grinding blocks can automatically stretch out and draw back in the radial direction to be tightly attached to the hole walls. By means of the design, a series of holes of different specifications can be continuously processed through a single device without halting to replace parts, the production efficiency and the equipment flexibility are remarkably improved, and the requirements of intelligent manufacturing for flexibility and continuous operation are met.

Description

Technical Field

[0001] This invention belongs to the field of board sanding, specifically relating to a sanding device for intelligent manufacturing of wooden cabinet boards. Background Technology

[0002] In the field of intelligent manufacturing for panel furniture and customized home furnishings, cabinet panels (such as side panels, shelves, and back panels) require extensive drilling during production to accommodate connectors (such as three-in-one connectors), hinge bases, cable holes, or functional handle holes. The inner walls of these holes often retain burrs, wood fibers, or minor chips after drilling. If left untreated, these not only affect the smoothness and stability of subsequent hardware installation but can also cause scratches to installers and negatively impact the final product's aesthetics and quality. Therefore, meticulous polishing of the inner walls of cabinet panel holes is a crucial process for improving overall product quality.

[0003] Currently, the common methods for sanding cabinet panel holes on the market mainly rely on two technologies: one is manual processing using sandpaper of specific sizes or small handheld sanding tools to process each hole individually, which is extremely inefficient, labor-intensive, and the sanding quality is affected by the worker's skill level, making it difficult to meet the needs of intelligent, mass production; the other is the use of semi-automatic or fully automatic specialized sanding equipment. However, existing automated sanding devices have significant limitations in dealing with the diverse specifications of cabinet panel holes. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a sanding device for intelligent manufacturing of wooden cabinet panels, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides a sanding device for intelligent manufacturing of wooden cabinet panels, including a sanding table, an electric clamp plate mounted on one side of the sanding table, an electric push rod mounted on the other side of the sanding table, a rotary motor mounted at the bottom of the electric push rod, a connecting rod 1 mounted at the output shaft of the rotary motor, and three sanding components arranged in a ring on the outer side of the connecting rod 1. The grinding assembly includes a hollow bracket fixed to one side of a connecting rod and a grinding block. The hollow bracket has three internal grooves, each through which a slider is slidably connected. The front end of each slider is fixedly connected to the inner side of the grinding block via a second connecting rod. The back of each slider is connected to the inner wall of the hollow bracket via a spring. Each slider has through slots at its top and bottom, and dampers are fixed to both sides of each slider near the second connecting rod. This application, by setting three grinding assemblies arranged in a ring, allows the grinding block to automatically extend and retract radially and tightly fit the hole wall under centrifugal force as the rotation speed of the motor changes, driven by an electric push rod when the grinding assembly enters holes of different diameters. This design allows a single device to continuously process a series of holes of different sizes without stopping to replace parts, significantly improving production efficiency and equipment flexibility, and meeting the requirements of intelligent manufacturing for flexible and continuous operation.

[0006] Preferably, the front end of the damper adopts a spherical structure, and the damper as a whole adopts a movable sealed telescopic rod.

[0007] Preferably, multiple rubber spherical blocks are fixed at the top and bottom of the inner wall of the groove in the middle of the hollow bracket.

[0008] Preferably, grooves are provided on both sides of the middle slider, and resistance components with adjustable resistance are installed in both grooves.

[0009] Preferably, the resistance assembly includes two long rods symmetrically hinged inside the groove, and two long plates symmetrically hinged inside the groove. A rubber wheel is rotatably connected to one side of each of the two long rods, and a second long plate is fixed to the other side of each of the two long rods. Spring pieces are fixed between each of the second long plate and the first long plate. A threaded rod is fixed inside the groove, and a threaded knob is threaded onto the outside of the threaded rod. Two symmetrical compression blocks are fixed to the outside of the threaded knob. This application achieves precise control of the dynamic stability of the grinding process by using an adjustable resistance assembly in conjunction with the synergistic effect of the rubber spherical blocks. The resistance assembly adjusts the compression force on the long rods via the threaded knob, which changes the resistance when the rubber wheel contacts the rubber spherical block, thereby precisely controlling the extension rate and restoring force of the slider and grinding block.

[0010] Preferably, the plurality of rubber spherical blocks are arranged in a linear array and located on the movement trajectory of the rubber wheel.

[0011] Preferably, the middle part of the connecting rod is equipped with an air inlet assembly, the air inlet assembly includes a circular plate, the interior of the circular plate has four circularly distributed air inlet slots 1 and 4 circularly distributed air inlet slots 2, the top of each air inlet slot 1 is fixed with a guide plate 1, and the interior of each air inlet slot 2 is hinged with a guide plate 2.

[0012] Preferably, the air intake assembly further includes four ring-shaped limiting blocks and four ring-shaped arc-shaped tracks fixed to the upper surface of the circular plate. Each arc-shaped track has a sliding actuating plate inside, and an elastic telescopic rod is fitted between the actuating plate and the inner wall of the arc-shaped track. This application achieves integrated sanding and dust removal by setting an air intake assembly capable of cleaning dust. The centrifugal force generated when the connecting rod rotates at high speed using a rotating motor serves as the power source. Air enters the air intake slot through the guide plate and is sent downwards. Simultaneously, during rotation, the guide plate rotates upwards under the action of the actuating plate, and then guides the air into the air intake slot. This airflow effectively blows away sawdust and dust generated during sanding, preventing them from accumulating in the holes or wearing down parts.

[0013] Preferably, the upper surface of the actuating plate has an inclined structure and is located between the second air inlet slot and the second guide plate.

[0014] The advantages of this application are: (1) This application sets up three grinding components arranged in a ring. When the grinding components enter holes of different diameters under the drive of the electric push rod, the grinding block can automatically extend and retract in the radial direction under the action of centrifugal force according to the change of the rotation speed of the rotating motor, and fit tightly against the hole wall. This design allows a single device to continuously process a series of holes of different specifications without stopping to replace parts, which significantly improves production efficiency and equipment flexibility, and meets the requirements of intelligent manufacturing for flexible and continuous operation.

[0015] (2) This application achieves precise control of the dynamic stability of the grinding process by setting an adjustable resistance component in conjunction with the rubber spherical block. The resistance component adjusts the squeezing force on the long rod through the threaded knob, which can change the resistance when the rubber wheel contacts the rubber spherical block, thereby precisely controlling the extension and retraction rate and restoring force of the slider and grinding block.

[0016] (3) This application achieves the integration of sanding and dust removal by setting up an air intake component that can clean dust. It uses the centrifugal force generated when the connecting rod is rotated at high speed by the rotating motor as the power source. Air enters the air intake slot through the guide plate and is sent downward. At the same time, the guide plate rotates upward under the action of the deflector plate during rotation, and then guides the air into the air intake slot through the guide plate. This airflow can effectively blow away the sawdust and dust generated during sanding, preventing them from accumulating in the holes or wearing parts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 3 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 4 This is a schematic diagram of the grinding component structure of the present invention; Figure 5 This is a schematic diagram of the grinding component structure of the present invention; Figure 6 This is the invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the overall structure of the present invention. Figure 3 ; Figure 8 This is a schematic diagram of the overall structure of the present invention. Figure 4 ; Figure 9 This is the invention Figure 8 Enlarged view at point B in the middle; Figure 10 This is a partial structural schematic diagram of the resistance component of the present invention; Figure 11 This is a schematic diagram of the air intake assembly structure of the present invention; Figure 12 This is the invention Figure 11 Enlarged view of point C in the middle.

[0018] Explanation of key figure labels: 100. Grinding table; 200. Electric clamp; 300. Electric push rod; 400. Rotary motor; 500. Grinding assembly; 600. Resistance assembly; 700. Air inlet assembly; 800. Connecting rod one; 501. Hollowed-out bracket; 502. Grinding block; 503. Slide groove; 504. Slider; 505. Connecting rod two; 506. Spring; 507. Through groove; 508. Damper; 601. Rubber spherical block; 602. Groove; 603. Long rod; 604. Rubber wheel; 605. Long plate two; 606. Long plate one; 607. Spring piece; 608. Threaded rod; 609. Threaded knob; 610. Extrusion block; 701. Circular plate; 702. Air inlet slot one; 703. Guide plate one; 704. Air inlet slot two; 705. Guide plate two; 706. Limiting block; 707. Arc-shaped track; 708. Actuating plate; 709. Elastic telescopic rod. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0020] Example 1, as Figures 1-10 As shown, a sanding device for intelligent manufacturing of wooden cabinet panels includes a sanding table 100, an electric clamp 200 is mounted on one side of the sanding table 100, an electric push rod 300 is mounted on the other side of the sanding table 100, a rotary motor 400 is mounted at the bottom of the electric push rod 300, a connecting rod 800 is mounted at the output shaft of the rotary motor 400, and three sanding components 500 arranged in a ring are mounted on the outer side of the connecting rod 800. The grinding assembly 500 includes a hollow bracket 501 fixed to the side of the connecting rod 800 and a grinding block 502. The hollow bracket 501 has three grooves 503 inside, and each groove 503 has a slider 504 that is slidably connected through it. The front end of each slider 504 is fixedly connected to the inside of the grinding block 502 through the connecting rod 505. The back of each slider 504 is connected to the inner wall of the hollow bracket 501 through a spring 506. Each slider 504 has a through groove 507 at its top and bottom. Each slider 504 has a damper 508 fixed on both sides near the connecting rod 505. The front end of the damper 508 has a spherical structure. The damper 508 is a movable sealed telescopic rod. Multiple rubber spherical blocks 601 are fixed at the top and bottom of the inner wall of the groove 503 in the middle of the hollow bracket 501. This application employs a three-ringed grinding assembly 500. When the grinding assembly 500, driven by the electric push rod 300, enters holes of different diameters, the grinding block 502 automatically extends and retracts radially under centrifugal force, adapting to the changing rotational speed of the motor 400, thus tightly fitting the hole wall. This design allows a single device to continuously process a series of holes of different sizes without stopping to replace parts, significantly improving production efficiency and equipment flexibility, and meeting the demands of intelligent manufacturing for flexible and continuous operation.

[0021] The middle slider 504 has grooves 602 on both sides. Each groove 602 is equipped with a resistance component 600 with adjustable resistance. The resistance component 600 includes two long rods 603 symmetrically hinged inside the groove 602 and two long plates 606 symmetrically hinged inside the groove 602. A rubber wheel 604 is rotatably connected to one side of each of the two long rods 603. A second long plate 605 is fixed to the other side of each of the two long rods 603. A spring piece 607 is fixed between the second long plate 605 and the first long plate 606. A threaded rod 608 is fixed inside the groove 602. A threaded knob 609 is threadedly sleeved on the outside of the threaded rod 608. Two symmetrical extrusion blocks 610 are fixed on the outside of the threaded knob 609. Multiple rubber spherical blocks 601 are arranged in a linear array and are located on the movement trajectory of the rubber wheel 604. This application achieves precise control over the dynamic stability of the grinding process by using an adjustable resistance component 600 in conjunction with the rubber spherical block 601. The resistance component 600 adjusts the squeezing force on the long rod 603 via a threaded knob 609, which changes the resistance when the rubber wheel 604 contacts the rubber spherical block 601, thereby precisely controlling the extension and retraction rate and restoring force of the slider 504 and the grinding block 502.

[0022] In practical use, the above-mentioned equipment is first used to place the wooden cabinet panel to be sanded (such as a side panel with various connecting holes already drilled) on the sanding table 100 and secure it firmly with the electric clamp 200, ensuring that the holes are aligned with the axis of the sanding assembly 500. The equipment is then started, and the electric push rod 300 is controlled to move the rotary motor 400 and its connected connecting rod 800 toward the cabinet panel until the sanding assembly 500 is positioned within the hole.

[0023] Simultaneously, the rotating motor 400 is started, driving the connecting rod 800 and the three sanding components 500 installed on the outside of the connecting rod 800 to begin rotating. Initially, under the preload of the spring 506, the three sanding blocks 502 are in a radially contracted initial position, with their outer diameter smaller than the minimum diameter of the hole to be sanded. Under the centrifugal force generated by the high rotation speed, the slider 504 and the sanding blocks 502 tend to expand outward. This tendency, together with the restoring force of the spring 506, the dynamic damping provided by the damper 508, and the reaction force of the hole wall, constitutes a dynamic balance system. At this time, the sanding blocks 502 are in contact with the hole wall for sanding. The damper 508 (whose front end adopts a spherical structure to reduce sliding friction) works continuously during this process, absorbing radial high-frequency micro-vibrations caused by slight unevenness of the hole wall or unevenness of the wood material, ensuring that the sanding blocks 502 maintain stable movement when floating radially, and avoiding uneven sanding or damage to the hole wall caused by "jumping".

[0024] For higher precision sanding requirements, the adjustable resistance component 600 in this embodiment comes into play. Before the equipment is started, the operator can rotate the threaded knob 609 according to the hole size, wood hardness, and target sanding finish. The threaded knob 609 drives the two symmetrical pressing blocks 610 on its outer side to rotate axially along the threaded rod 608. When the pressing blocks 610 rotate, they press the two long plates 605, forcing the long rod 603 to rotate around its hinge point, so that the rubber wheel 604 installed on the other side of the long rod 603 presses more tightly against the surface. The linear array of rubber spherical blocks 601 on the inner wall of the groove 503 allows for precise control of the contact pressure (i.e., friction) between the rubber wheel 604 and the rubber spherical blocks 601 by adjusting the screw depth of the threaded knob 609. This enables adjustment of the resistance of the slider 504 sliding within the groove 503. This mechanism allows for fine-tuning of the radial extension response speed of the grinding block 502 and the pressure applied to the hole wall, enabling it to better adapt to different material properties from softwood to hardwood and achieve parameterized control from coarse grinding to fine grinding.

[0025] Throughout the grinding process, the electric push rod 300 controls the grinding component 500 to reciprocate or feed at a constant speed within the hole, ensuring that the entire length of the hole wall is uniformly treated. After grinding one hole, the electric push rod 300 retracts, the grinding component 500 exits the hole, and returns to its original position under the action of the spring 506. Subsequently, by moving the cabinet plate, continuous operation can be performed on the next hole with a different diameter, without the need to change any grinding components throughout the entire process. Example 2, as Figure 1 , Figure 11 , Figure 12As shown, based on Embodiment 1, in this application, an air inlet assembly 700 is assembled in the middle of the connecting rod 800. The air inlet assembly 700 includes a circular plate 701. The interior of the circular plate 701 has four circularly distributed air inlet slots 702 and four circularly distributed air inlet slots 704. A guide plate 703 is fixed to the top of each air inlet slot 702. A guide plate 705 is hinged inside each air inlet slot 704. The air inlet assembly 700 also includes four ring-shaped limiting blocks 706 and four ring-shaped arc tracks 707 fixed to the upper surface of the circular plate 701. A toggle plate 708 is slidably connected inside each arc track 707. An elastic telescopic rod 709 is assembled between the toggle plate 708 and the inner wall of the arc track 707. The upper surface of the toggle plate 708 is a sloping structure and is located between the air inlet slots 704 and the guide plates 705. This application integrates sanding and dust removal by incorporating a dust-cleaning air intake assembly 700. Utilizing the centrifugal force generated by the high-speed rotation of the connecting rod 800 driven by the rotating motor 400 as a power source, air enters the air intake slot 702 through the guide plate 703 and is then expelled downwards. Simultaneously, the guide plate 705 rotates upwards under the action of the actuating plate 708 during rotation, subsequently guiding air into the air intake slot 704. This airflow effectively removes sawdust and dust generated during sanding, preventing their accumulation in holes or on worn parts.

[0026] In practical use, when the above-mentioned equipment is performing a grinding operation as described in Embodiment 1, the high-speed rotating connecting rod 800 synchronously drives the air intake assembly 700 fixed in its middle to rotate. Under the action of centrifugal force, the gas around the air intake assembly 700 is thrown to all sides, forming a low-pressure zone in the central area of ​​the circular plate 701. Under the action of pressure difference, external air is mainly drawn in through two pathways: The guide plate 703 fixed at the top of the air inlet slot 702 guides the airflow. Some air enters through the air inlet slot 702, forming a concentrated airflow that flows downward (towards the direction of the cabinet panel holes). The guide plate 705, which is hinged inside the air inlet slot 704, hangs down naturally under gravity when stationary or at low speed. When the component rotates at high speed, the actuating plate 708, which is located between the air inlet slot 704 and the guide plate 705, begins to function. The upper surface of the actuating plate 708 is a sloping structure and is connected to the inner wall of the arc-shaped track 707 through the elastic telescopic rod 709. Under the combined action of the centrifugal force generated by rotation and the impact of airflow, the actuating plate 708 slides along the arc-shaped track 707 and squeezes the elastic telescopic rod 709. Its sloping structure will push up the guide plate 705, causing it to rotate upward around the hinge point to a certain angle, thereby opening and optimizing the air intake channel of the air inlet slot 704 and efficiently introducing more air.

[0027] The drawn-in air forms a stable airflow inside the device, flowing from the middle of the connecting rod 800 towards the area of ​​the sanding block 502 (i.e., inside the hole). This airflow blows precisely towards the area where sanding is being performed. The wood chips and fine dust generated during sanding are instantly blown away from the surface of the sanding block 502 and the hole wall by this directional airflow. The dust blown up is discharged outside the hole mainly through the through groove 507 on the slider 504, the gap of the hollow bracket 501, and the gap between the sanding block 502 and the hole wall. This effectively prevents dust from accumulating inside the hole (affecting the sanding field of vision and smoothness), adhering to the moving parts of the sanding assembly 500, or spreading into the working environment.

[0028] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sanding device for intelligent manufacturing of wooden cabinet panels, comprising a sanding table (100), characterized in that, An electric clamp (200) is mounted on one side of the grinding table (100), and an electric push rod (300) is mounted on the other side of the grinding table (100). A rotary motor (400) is mounted at the bottom of the electric push rod (300), and a connecting rod (800) is mounted at the output shaft of the rotary motor (400). Three grinding components (500) arranged in a ring are mounted on the outside of the connecting rod (800). The polishing assembly (500) includes a hollow bracket (501) fixed to the side of the connecting rod (800) and a polishing block (502). The hollow bracket (501) has three sliding grooves (503) inside. Each sliding groove (503) has a slider (504) that is slidably connected through it. The front end of each slider (504) is fixedly connected to the inside of the polishing block (502) through the connecting rod (505). The back of each slider (504) is connected to the inner wall of the hollow bracket (501) through a spring (506). Each slider (504) has a through groove (507) at the top and bottom. Each slider (504) has a damper (508) fixed on both sides near the connecting rod (505).

2. The sanding device for intelligent manufacturing of wooden cabinet panels according to claim 1, characterized in that, The front end of the damper (508) adopts a spherical structure, and the damper (508) as a whole adopts a movable sealed telescopic rod.

3. The sanding device for intelligent manufacturing of wooden cabinet panels according to claim 1, characterized in that, Multiple rubber spherical blocks (601) are fixed at the top and bottom of the inner wall of the groove (503) in the middle of the hollow bracket (501).

4. The sanding device for intelligent manufacturing of wooden cabinet panels according to claim 3, characterized in that, The slider (504) in the middle has grooves (602) on both sides, and each of the two grooves (602) is equipped with a resistance component (600) with adjustable resistance.

5. A sanding device for intelligent manufacturing of wooden cabinet panels according to claim 4, characterized in that, The resistance assembly (600) includes two long rods (603) symmetrically hinged inside the groove (602) and two long plates (606) symmetrically hinged inside the groove (602). A rubber wheel (604) is rotatably connected to one side of each of the two long rods (603), and a long plate (605) is fixed to the other side of each of the two long rods (603). A spring piece (607) is fixed between each of the two long plates (605) and the two long plates (606). A threaded rod (608) is fixed inside the groove (602), and a threaded knob (609) is threaded onto the outside of the threaded rod (608). Two symmetrical compression blocks (610) are fixed to the outside of the threaded knob (609).

6. A sanding device for intelligent manufacturing of wooden cabinet panels according to claim 5, characterized in that, The plurality of rubber spherical blocks (601) are arranged in a linear array and are located on the movement trajectory of the rubber wheel (604).

7. A sanding device for intelligent manufacturing of wooden cabinet panels according to claim 1, characterized in that, The middle part of the connecting rod (800) is equipped with an air inlet assembly (700). The air inlet assembly (700) includes a circular plate (701). The circular plate (701) has four circularly distributed air inlet slots (702) inside. The circular plate (701) has four circularly distributed air inlet slots (704) inside. Each air inlet slot (702) has a guide plate (703) fixed at its top. Each air inlet slot (704) has a guide plate (705) hinged inside.

8. A sanding device for intelligent manufacturing of wooden cabinet panels according to claim 7, characterized in that, The air intake assembly (700) also includes four ring-shaped limiting blocks (706) and four ring-shaped arc tracks (707) fixed on the upper surface of the circular plate (701). Each arc track (707) has a sliding actuating plate (708) inside it. An elastic telescopic rod (709) is assembled between the actuating plate (708) and the inner wall of the arc track (707).

9. A sanding device for intelligent manufacturing of wooden cabinet panels according to claim 7, characterized in that, The upper surface of the actuating plate (708) is a sloping structure and is located between the second air inlet slot (704) and the second guide plate (705).

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