An oblique cutting mechanism for edge banding

Abstract

A beveled cutting mechanism for edge banding strips, relating to the field of edge banding machine processing technology, includes a worktable with a clamping mechanism and an angle driving mechanism. A cutting wheel is mounted on the angle driving mechanism, which can drive the cutting wheel to change its displacement to cut the edge banding strip. The clamping mechanism of this invention is used to clamp and fix the edge banding strip. The angle driving mechanism controls the cutting wheel to cut the edge banding strip beveled, achieving wrinkle-free cutting and forming a concealed beveled fracture. This has the advantages of avoiding wrinkles and deformation of the edge banding strip, hiding fracture marks, eliminating manual finishing processes, and improving the aesthetics of the finished product.

Description

Technical Field

[0001] This utility model relates to the field of edge banding machine technology, and more specifically, to an oblique cutting mechanism for edge banding strips. Background Technology

[0002] Currently, edge banding machines generally use a straight-line cutting method during processing, which involves the cooperation of a fixed blade and a moving blade to cut the edge banding strip. This traditional cutting method has obvious drawbacks: First, the straight-line cutting process easily causes wrinkles and deformation of the edge banding strip, affecting the appearance quality of the product; second, the cut edge banding strip has a right-angled end face, which easily exposes the cutting marks during subsequent installation, affecting the overall aesthetics.

[0003] To address the aforementioned issues, existing technologies have introduced improved solutions using circular saw blades for cutting, such as the edge banding tape cutting device disclosed in Chinese Patent CN105382872B. This device uses an electric motor to drive the circular blade for cutting. While it can achieve relatively neat cut edges, it still has significant shortcomings: the cut edge banding strip still requires a few millimeters of length for manual refinishing. This not only increases the complexity of the process but also makes it difficult to guarantee the quality of manual refinishing, easily resulting in uneven breaks at the joints, severely affecting the overall aesthetics of the finished board.

[0004] To address the aforementioned issues, existing technologies urgently need improvement. Utility Model Content

[0005] The purpose of this utility model is to solve the problems mentioned in the background art, and then to propose an oblique cutting mechanism for edge banding strips, which has the advantages of avoiding wrinkles and deformation of edge banding strips, hiding break marks, and improving the aesthetics of finished products.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An oblique cutting mechanism for edge banding includes a worktable, on which a clamping mechanism and an angle driving mechanism are provided. A cutting wheel is mounted on the angle driving mechanism, which can drive the cutting wheel to change its displacement to cut the edge banding.

[0008] Furthermore, the angle driving mechanism includes a fixed plate, a first hinge seat on the fixed plate, a mounting groove formed on one side of the fixed plate, a mounting plate rotatably connected in the mounting groove, a swing plate on the mounting plate, a first cylinder rotatably connected to the first hinge seat, the telescopic rod of the first cylinder rotatably connected to the swing plate, a motor on the mounting plate, and a cutting wheel connected to the output shaft of the motor.

[0009] Furthermore, the fixing plate is provided with an arc-shaped groove, and the worktable surface is provided with a plurality of threaded holes. The threaded holes cooperate with the arc-shaped groove, and the bolts can pass through the arc-shaped groove and be threaded into the threaded holes so that the fixing plate is fixedly connected to the worktable surface.

[0010] Furthermore, the angle adjustment range of the cutting wheel is preferably between -5° and 20°.

[0011] Furthermore, the clamping mechanism includes a double-headed cylinder, which is fixedly connected to the worktable. The telescopic rod of the double-headed cylinder is connected to a clamping block. A connecting plate is provided at the top of the double-headed cylinder, and a limiting plate is provided at the bottom of the connecting plate. The two ends of the limiting plate are fixedly connected to the worktable by bolts.

[0012] Furthermore, the limiting plate cooperates with the clamping block.

[0013] Furthermore, when the edge banding strip is clamped between the limiting plate and the clamping block, the cutting wheel can move under the action of the first cylinder and rotate under the action of the motor to cut the edge banding strip obliquely.

[0014] Furthermore, the fixing plate is provided with a vertical plate, and a dust suction hood is installed on the vertical plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the clamping mechanism of this utility model is used to clamp and fix the edge banding strip, and the cutting wheel is controlled to cut into the edge banding strip obliquely through the angle driving mechanism to achieve wrinkle-free cutting and form a hidden oblique fracture. It has the advantages of avoiding wrinkles and deformation of the edge banding strip, hiding fracture traces, eliminating manual trimming process, and improving the aesthetics of the finished product. Attached Figure Description

[0016] Figure 1 This is a schematic diagram showing the usage state of this utility model;

[0017] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the present invention after the dust cover has been removed;

[0019] Figure 4 This is a schematic diagram of the angle drive mechanism;

[0020] Figure 5 This is a schematic diagram of the clamping mechanism.

[0021] The components include: 1. Workbench, 11. Fixing plate, 111. Arc-shaped groove, 12. Threaded hole, 21. Mounting groove, 22. Mounting plate, 23. First hinge seat, 24. First cylinder, 25. Swing plate, 26. Motor, 27. Cutting wheel, 31. Double-headed cylinder, 32. Connecting plate, 33. Limiting plate, 34. Clamping block, 100. Edge banding machine, 200. Edge banding strip, 201. Guide plate, 300. Edge banding strip oblique cutting mechanism. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments:

[0023] In existing technologies, edge banding machines typically use linear drive blades or rotary saw blades to cut the edge banding strips. Linear cutting easily results in wrinkles in the edge banding, while saw blade cutting, although producing neat edges, still requires leaving some length for manual trimming. Improper manual trimming can expose the cut at the joint, reducing the aesthetic appeal of the board. This has become a key bottleneck restricting the improvement of edge banding process quality.

[0024] To address the aforementioned issues, designers noticed that the exposed fracture surface stemmed from the cut direction being perpendicular to the extension direction of the edge banding strip. Changing the cut to an angled position would allow the cut to be concealed using a beveled surface. However, traditional linear drive mechanisms struggle to achieve angle adjustment, and direct modification would significantly increase the equipment's size. Analysis revealed that controlling the spatial displacement trajectory of the cutting wheel is crucial for changing the cut angle, but integrating angle adjustment functionality within a limited space is necessary. Ultimately, an articulated drive mechanism was chosen, using rotational motion to change the cutting wheel's position, achieving angle adjustment while maintaining a compact structure.

[0025] like Figures 1-5 As shown, an edge banding strip oblique cutting mechanism 300 is installed on the edge banding machine 100. The edge banding strip 200 is inserted into the edge banding strip oblique cutting mechanism through the guide plate 201, which can realize the oblique cutting of the edge banding strip.

[0026] An oblique cutting mechanism for edge banding strips includes a worktable 1, which is mounted on an edge banding machine. The worktable is provided with a clamping mechanism and an angle driving mechanism. A cutting wheel 27 is mounted on the angle driving mechanism. The clamping mechanism is used to clamp and fix the edge banding strip, and the angle driving mechanism can drive the cutting wheel to change its displacement in order to cut the edge banding strip.

[0027] The worktable refers to the base plane of the supporting mechanism, which can be installed on the existing table of the edge banding machine. The clamping mechanism is the component that clamps the edge banding strip using a mechanical device; specifically, it can be achieved by using a double-headed cylinder to drive the clamping block in conjunction with the limiting plate for fixation. The angle drive mechanism is the adjustment device that controls the spatial position of the cutting wheel; specifically, it can be a cylinder-driven hinged rocker arm structure that changes the tilt angle of the cutting wheel by swinging. The cutting wheel refers to a disc cutter with a rotary cutting function; specifically, it can use a carbide blade with a diameter of 80-150mm, a speed range set at 12000rpm, and a blade thickness of 1.5-3mm.

[0028] Specifically, the edge banding strip is inserted through a guide plate and then fixed by a clamping mechanism. An angle drive mechanism moves the cutting wheel along a preset trajectory, rotating and cutting under motor drive. The cutting wheel's cutting direction forms an angle with the edge banding strip, creating a beveled cut. This bevel naturally conceals the cut area after the edge banding strip is installed, eliminating the need for manual secondary trimming. The worktable directly utilizes the existing structure of the edge banding machine, and the angle drive mechanism achieves a compact layout through hinge points, ensuring the entire mechanism can be directly added to existing equipment.

[0029] Compared to existing technologies, the vertical cut created by straight cutting inevitably exposes the fracture surface. While saw blade cutting improves cut quality, it still requires allowance for manual trimming. This solution, through its oblique cutting design, directly forms a shielding structure during the cutting process, eliminating the risk of exposed fracture surfaces. Compared to traditional angle adjustment mechanisms that require complex structures such as linear guides, this solution uses a rotary swing mechanism to achieve angle adjustment, reducing the space occupied by the mechanism while maintaining the same functionality.

[0030] Through the above technical solution, this application effectively eliminates the defect of exposed edge banding strip breaks, improving the appearance quality of edge banding panels. The oblique cutting action simultaneously completes cut formation and break concealment in a single processing step, avoiding manual trimming and improving production efficiency. The integrated design of the angle drive mechanism and cutting wheel ensures convenient equipment modification and can be directly adapted to most edge banding machine models.

[0031] In at least one embodiment, the angle driving mechanism includes a fixed plate 11, a first hinge seat 23 on the fixed plate, a mounting groove 21 formed on one side of the fixed plate, a mounting plate 22 rotatably connected in the mounting groove, a swing plate 25 on the mounting plate, a first cylinder 24 rotatably connected on the first hinge seat, the telescopic rod of the first cylinder rotatably connected to the swing plate, a motor 26 on the mounting plate, and a cutting wheel connected to the output shaft of the motor.

[0032] The fixed plate is the basic support structure that bears the angle drive mechanism. It can be made from a steel plate to form a planar structure, and its function is to provide a fixed reference for the mounting slot and the first hinge seat. The mounting slot is a recessed area on the side of the fixed plate, which can be formed by milling. Its function is to provide spatial constraints for the rotational connection of the mounting plate. The first hinge seat is a rotating fulcrum structure used to connect the cylinder. It can be made from a metal block with a shaft hole that is welded or bolted. Its function is to convert the direction of the driving force by rotating the first cylinder. The swing plate is a force-transmitting component that is linked to the cylinder's telescopic rod. It can be made from a metal plate with hinge holes, and its function is to convert the linear motion of the cylinder into the rotational displacement of the mounting plate.

[0033] Specifically, the fixed plate is rotatably connected to the mounting plate via a mounting slot, allowing the cutting wheel to rotate around the side axis of the fixed plate. When the first cylinder's telescopic rod pushes the swing plate, the mounting plate causes the cutting wheel to swing around the axis of the mounting slot, thereby changing the horizontal distance between the cutting wheel and the edge banding strip. The motor is directly fixed to the mounting plate and drives the cutting wheel to rotate via its output shaft, eliminating the need for an additional transmission mechanism.

[0034] Compared to existing technologies, traditional edge banding cutting mechanisms use linear guides or cylinders to directly drive the cutting wheel for linear displacement, requiring the drive components to be arranged along the cutting direction, thus occupying a large amount of longitudinal space. For example, in Chinese patent CN105382872B, the motor and circular blade are arranged in a linear fashion, resulting in an increase in the overall structural length. This solution, however, uses a rotating connection design with a mounting groove on the side of the fixed plate to convert the displacement of the cutting wheel into rotational motion around an axis, reducing the longitudinal space requirement by more than 50%. Simultaneously, the hinged linkage between the first cylinder and the swing plate replaces the sliding structure of the traditional linear guide, further reducing the lateral layout dimensions.

[0035] Through the above technical solution, this application solves the problem of longitudinal space occupation caused by the linear drive method of traditional edge banding cutting mechanisms. This compact design allows the cutting mechanism to adapt to the narrow installation space of the edge banding machine, while meeting the cutting requirements at different angles.

[0036] Furthermore, the fixing plate is provided with an arc-shaped groove 111, and in conjunction with it, a plurality of threaded holes 12 are provided on the worktable. The threaded holes and the arc-shaped groove are matched, and the bolts can pass through the arc-shaped groove and be threaded into the threaded holes, so that the fixing plate is fixedly connected to the worktable. In order to prevent the bolts from loosening, spring washers can be used.

[0037] The reason for setting the cutting wheel angle adjustment is that the bevel angles of the outer arc, straight line and inner arc are different when they are joined. The purpose of angle adjustment is to improve the aesthetics of the edge banding. In this case, the angle range of the cutting wheel relative to the edge banding or edge banding strip after adjustment is preferably between -5° and 20°.

[0038] The arc-shaped groove refers to a curved through-hole on the fixed plate, specifically formed by machining an arc-shaped trajectory. Its length can be a size suitable for the adjustment angle range, such as covering the adjustment range of -5 degrees to 20 degrees. The threaded holes refer to multiple threaded connection holes distributed along the worktable surface. The position distribution of the threaded holes corresponds to the trajectory of the arc-shaped groove, forming multiple fixing points to lock different cutting angles. The bolt is a fastener that passes through the arc-shaped groove and connects to the threaded hole. Its diameter is adapted to the width of the arc-shaped groove, for example, using an M8 standard bolt. The bolt, in conjunction with a spring washer, achieves an anti-loosening function. The spring washer is a combination structure of a standard flat washer and a spring washer.

[0039] Specifically, when the cutting angle needs adjustment, the bolts can be loosened to allow the fixing plate to rotate along the arc-shaped groove trajectory. Once the cutting wheel reaches the target angle, the bolts are passed through the corresponding threaded holes and tightened. The trajectory of the arc-shaped groove constrains the rotation path of the fixing plate, ensuring the linear controllability of the cutting wheel angle adjustment. The fit between the threaded holes and the groove forms a discrete angle positioning structure. Spring washers compensate for the preload attenuation caused by vibration through elastic deformation, preventing bolt loosening and angle deviation. This structure allows operators to perform angle adjustments without disassembling parts, for example, to meet the processing needs of different batches of sheet metal.

[0040] Through the above technical solution, this application achieves rapid and precise adjustment of the cutting angle. After the cutting wheel angle is locked, the spring washer can effectively suppress the angle deviation caused by equipment vibration and ensure the consistency of the cut plane during the oblique cutting process.

[0041] In at least one embodiment, the clamping mechanism includes a double-headed cylinder 31, which is fixedly connected to the worktable. A clamping block 34 is connected to the telescopic rod of the double-headed cylinder. A connecting plate 32 is provided at the top of the double-headed cylinder, and a limiting plate 33 is provided at the bottom of the connecting plate. Both ends of the limiting plate are fixedly connected to the worktable by bolts. The clamping block and limiting plate are made of plastic or bakelite. After initial assembly, the clamping block and limiting plate can be cut with a cutting wheel to form cutting grooves, thus facilitating the subsequent oblique cutting of the edge banding strip.

[0042] The dual-head cylinder refers to a linear drive device with bidirectional synchronous output function, which can be implemented using a dual-piston rod cylinder or a parallel dual-cylinder structure. Its function is to achieve balanced clamping through symmetrical force application. The clamping block is the clamping component that directly contacts the edge banding tape, and can be made of plastic or bakelite. Its function is to cooperate with the limiting plate to form a clamping surface. The connecting plate is the transition structure connecting the dual-head cylinder and the limiting plate, and can be implemented by welding steel plates or bolting. The limiting plate is a plastic or bakelite board with a positioning structure, and its two ends are fixedly connected to the moving plate by bolts to constrain the movement trajectory of the clamping block.

[0043] Specifically, the double-headed cylinder is rigidly connected to the worktable via a fixed end. Its telescopic rod synchronously drives the clamping blocks on both sides to move towards the limiting plate, forming a symmetrical clamping force that presses the edge banding strip between the clamping blocks and the limiting plate. When the cutting wheel cuts obliquely along the groove, the edge banding strip can be cut. The contact surfaces of the clamping blocks and the limiting plate adopt a planar fit, forming a surface contact clamping under the pressure of the double-headed cylinder, eliminating deformation of the edge banding strip caused by local stress concentration.

[0044] This application achieves bidirectional symmetrical clamping during the oblique cutting of the edge banding strip, eliminating slippage or twisting deformation of the edge banding strip caused by single-point pressure, and ensuring that the cut surface precisely matches the preset oblique angle. The cooperation between the limiting plate groove and the cutting wheel allows the cutting action to be completed within a controlled space, avoiding burrs or misalignment of the cut surface caused by the wobble of the cutting wheel, and directly forming a flat oblique cut surface that does not require secondary trimming.

[0045] Furthermore, the limiting plate cooperates with the clamping block.

[0046] Furthermore, when the edge banding strip is clamped between the limiting plate and the clamping block, the cutting wheel can move under the action of the first cylinder and rotate under the action of the motor to cut the edge banding strip obliquely.

[0047] Specifically, after the edge banding strip is fixed in a rigid clamping area formed by the clamping block and the limiting plate, the cutting wheel maintains a high-speed rotation under the drive of the motor. The first cylinder pushes the swing mechanism that mounts the cutting wheel to move along a predetermined trajectory, causing the rotating cutting wheel blade to cut into the edge banding strip at an inclined angle. The vertical cross-section formed by the traditional straight cutting method must retain a 3-5mm allowance for subsequent manual trimming, while this solution forms a beveled cut surface that meets the decorative requirements in one go through bevel cutting. Although existing saw blade cutting can form neat edges, the exposed cut surface still needs to be manually treated. This solution, however, automatically hides the cut surface at the joint of the board through a specific angled cutting design.

[0048] Through the above technical solution, this application can directly form a beveled cut surface that meets the decoration requirements, eliminate the defect of exposed fracture caused by improper manual trimming in traditional processes, and omit the processing step of reserving allowance, thereby improving the efficiency of the edge banding cutting process by about 40%.

[0049] In at least one embodiment, the fixing plate is provided with a vertical plate 41, and a dust suction hood 42 is installed on the vertical plate. The dust suction hood can be connected to a negative pressure mechanism for sucking away the powder generated during the cutting of the edge banding tape.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bevel cutting mechanism for edge banding strips, characterized in that, The system includes a worktable with a clamping mechanism and an angle driving mechanism. A cutting wheel is mounted on the angle driving mechanism, which can cause the cutting wheel to shift to cut the edge banding strip. The angle driving mechanism includes a fixed plate with a first hinge seat. A mounting groove is formed on one side of the fixed plate, and a mounting plate is rotatably connected in the mounting groove. A swing plate is provided on the mounting plate. A first cylinder is rotatably connected to the first hinge seat. The telescopic rod of the first cylinder is rotatably connected to the swing plate. A motor is provided on the mounting plate, and the output shaft of the motor is connected to a cutting wheel.

2. The oblique cutting mechanism for the edge banding strip according to claim 1, characterized in that, The fixing plate is provided with an arc-shaped groove, and the worktable is provided with several threaded holes. The threaded holes are matched with the arc-shaped groove, and the bolts can pass through the arc-shaped groove and be threaded into the threaded holes so that the fixing plate is fixedly connected to the worktable.

3. The oblique cutting mechanism for the edge banding strip according to claim 1 or 2, characterized in that, The clamping mechanism includes a double-headed cylinder, which is fixedly connected to the workbench. The telescopic rod of the double-headed cylinder is connected to a clamping block. A connecting plate is provided at the top of the double-headed cylinder, and a limiting plate is provided at the bottom of the connecting plate. The two ends of the limiting plate are fixedly connected to the workbench by bolts.

4. The oblique cutting mechanism for the edge banding strip according to claim 3, characterized in that, The limiting plate cooperates with the clamping block.

5. The oblique cutting mechanism for the edge banding strip according to claim 3, characterized in that, When the edge banding strip is clamped between the limiting plate and the clamping block, the cutting wheel can move under the action of the first cylinder and rotate under the action of the motor to cut the edge banding strip at an angle.

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