Edge band slotting device

Abstract

The application relates to the technical field of edge band slotting, and discloses an edge band slotting device, which comprises a mounting frame, an edge band limiting unit and a driving motor, wherein: an opening is arranged on the top plate of the mounting frame; the edge band limiting unit is arranged at a position close to the opening; the driving motor is arranged in the mounting frame, the driving motor moves in the horizontal direction and the vertical direction through a position adjusting unit, a motor shaft of the driving motor penetrates through the opening, and a disc cutter is arranged at the end of the motor shaft of the driving motor. The application has the effects of reducing the occurrence of carding of the driving motor and improving the slotting effect on the edge band.

Description

Technical Field

[0001] This application relates to the field of edge banding grooving technology, and in particular to an edge banding grooving device. Background Technology

[0002] The conventional process for edge banding of boards involves first applying hot melt adhesive evenly to the edge of the substrate, and then pressing the edge banding tape onto the adhesive layer. For boards with both straight and beveled surfaces on the same edge, where the two meet at a 45° or other angle, the edge banding tape must be bent synchronously at the corner.

[0003] If a V-shaped or U-shaped stress groove is not pre-cut on the back of the edge banding, the shrinkage stress generated when the hot melt adhesive cools will cause the edge banding to curl up at the corner, forming a "white edge" or "open mouth" defect.

[0004] The most common grooving method currently used is to directly drive a disc cutter with a motor. The cutter cuts into the back of the sealing tape, cutting intermittent or continuous grooves while feeding the material.

[0005] However, at the moment the system starts up, the cutter has already made contact with the edge banding tape, the motor has not yet reached its rated speed, and the output torque is insufficient. The edge banding tape generates a counter-pull force due to instantaneous resistance, which can easily cause the motor to stall, trip, or even burn out. At the same time, the edge banding tape is stretched thin and torn, producing serrated burrs, which affects the subsequent bonding strength and appearance quality. Utility Model Content

[0006] In order to reduce the jamming of the drive motor and improve the grooving effect on the edge banding, this application provides an edge banding grooving device.

[0007] The edge banding grooving device provided in this application adopts the following technical solution: A grooving device for edge banding includes a mounting frame, an edge banding limiting unit, and a drive motor, wherein: The top plate of the mounting bracket has an opening; The edge banding limiting unit is located near the opening; The drive motor is placed inside the mounting bracket. The drive motor can move in the horizontal and vertical directions through the position adjustment unit. The motor shaft of the drive motor passes through the opening, and a disc cutter is provided at the end of the motor shaft.

[0008] Optionally, the edge banding limiting unit includes a reference plate, a transverse limiting unit, a longitudinal limiting unit, and a limiting wheel, wherein: The reference plate is fixedly installed on the top plate of the mounting bracket, and the reference plate is provided with a cutting opening; Both the lateral limiting unit and the longitudinal limiting unit are located on the top plate of the mounting frame near the reference plate. The limiting wheel is located near the cutting opening.

[0009] Optionally, the lateral limiting unit includes a pair of vertical rollers, which are rotatably positioned on the top plate of the mounting frame.

[0010] Optionally, the longitudinal limiting unit includes a pair of transverse rollers, which are distributed along a horizontal plane and mounted on the top plate of the mounting frame via a limiting bracket.

[0011] Optionally, the limiting wheel can only rotate in the same direction.

[0012] Optionally, the top plate of the mounting bracket is provided with a fixing frame, and the limiting wheel is mounted on the fixing frame by rotation; The limiting wheel rotates around the vertical axis and engages with the rotating frame, and the rotating frame rotates around the vertical axis and engages with the fixed frame. A spring is provided between the rotating frame and the fixed frame.

[0013] Optionally, the fixing frame is provided with a limiting groove; The rotating frame is provided with a limiting plate that is inserted into the limiting slot.

[0014] Optionally, the position adjustment unit includes a longitudinal movement unit and a lateral movement unit, wherein: The longitudinal moving unit is disposed on the top plate of the mounting frame; The lateral movement unit is disposed on the longitudinal movement unit; The drive motor is mounted on the lateral movement unit.

[0015] In summary, this application includes at least one of the following beneficial technical effects: 1. The position adjustment unit enables the motor to accelerate under no-load conditions before the cutter contacts the cutting surface. This ensures that the drive motor has established its rated speed and sufficient torque before contacting the edge banding tape, thereby reducing the risk of stalling, tripping, or even motor burnout due to insufficient torque at startup. 2. By combining the edge banding plate limiting unit with the smooth cutting force brought by the full-speed cutting of the disc cutter, the thinning, tearing, displacement or vibration of the edge banding during the processing is effectively reduced, so that the stress groove is regular in shape, uniform in depth and smooth without burrs.

[0016] 3. The spring-loaded floating limit wheel can adapt to edge banding tapes of different thicknesses and always provide a stable lateral clamping force, enhancing the equipment's tolerance to material tolerances. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the edge banding tape conveying state in an embodiment of this application.

[0018] Figure 2 This is a schematic diagram of the overall structure of an embodiment of this application.

[0019] Figure 3 This is a schematic diagram illustrating the edge banding limiting unit structure in the embodiments of this application.

[0020] Figure 4 This is a schematic diagram illustrating the structure of the position adjustment unit in the embodiments of this application.

[0021] Explanation of reference numerals in the attached figures: 1. Mounting bracket; 11. Opening; 2. Edge banding tape limiting unit; 21. Base plate; 211. Cutting opening; 22. Lateral limiting unit; 23. Longitudinal limiting unit; 24. Limiting wheel; 25. Fixing bracket; 251. Limiting groove; 26. Rotating bracket; 261. Limiting plate; 27. Spring; 3. Drive motor; 31. Disc cutter; 4. Position adjustment unit; 41. Longitudinal movement unit; 42. Lateral movement unit; 5. Edge banding tape. Detailed Implementation

[0022] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0023] This application discloses a grooving device for edge banding.

[0024] An edge banding tape grooving device mainly consists of a mounting frame 1, an edge banding tape limiting unit 2, and a drive motor 3. The top plate of the mounting frame 1 has an opening 11. The edge banding tape limiting unit 2 is positioned near this opening 11 to guide and position the edge banding tape 5. The drive motor 3 is installed inside the mounting frame 1 and is connected to the mounting frame 1 via a position adjustment unit 4, allowing it to be adjusted in both horizontal and vertical directions. The motor shaft of the drive motor 3 passes upward through the opening 11 in the top plate, and a disc cutter 31 for grooving is installed at its end.

[0025] The drive motor 3 smoothly accelerates to its rated speed under no-load conditions, obtaining sufficient rotational inertia and output torque. Then, the position adjustment unit 4 smoothly delivers the high-speed rotating disc cutter 31 to the back of the edge banding 5 for cutting, ensuring sufficient power at the moment of cutting, thereby overcoming the instantaneous resistance of the edge banding 5. The disc cutter 31 contacts the edge banding 5 at full speed, reducing the cutting resistance and preventing the edge banding 5 from being thinned or torn due to instantaneous overload, thus reducing the serrated burrs on the grooved edge.

[0026] The edge banding tape limiting unit 2 consists of a reference plate 21, a transverse limiting unit 22, a longitudinal limiting unit 23, and a limiting wheel 24. The reference plate 21 is fixedly mounted on the top plate of the mounting frame 1, and a cutting opening 211 is provided on the reference plate 21 for the disc cutter 31 to pass through. The transverse limiting unit 22 and the longitudinal limiting unit 23 are both located on the top plate of the mounting frame 1 near the reference plate 21. The limiting wheel 24 is installed closest to the cutting opening 211 and acts directly on the edge banding tape 5.

[0027] The reference plate 21 serves as a positional reference. The lateral limiting unit 22 constrains the left and right positions of the edge banding 5 to prevent it from deviating. The longitudinal limiting unit 23 constrains the up and down movement of the edge banding 5 to ensure that the band body is flat. The limiting wheel 24 located next to the cutting opening 211 suppresses the slight displacement or vibration of the edge banding 5 caused by the cutting force to the maximum extent at the moment of grooving. Thus, it effectively counteracts the lateral force and vibration generated by cutting, ensuring the accuracy of the grooving position and the smoothness of the groove edge.

[0028] The lateral limiting unit 22 includes a pair of vertical rollers, which are rotatably mounted on the top plate of the mounting frame 1 and located on both sides of the predetermined path of the edge sealing strip 5. This pair of vertical rollers forms a slit channel with adjustable width, which constrains the edge sealing strip 5 from the left and right sides of its travel direction to prevent it from deviating or swaying laterally during transport.

[0029] As the edge banding tape 5 moves forward, it drives the vertical rollers to rotate, converting sliding friction into rolling friction. The vertical rollers continuously correct the lateral deviation of the edge banding tape 5, ensuring that it enters the subsequent cutting area in the correct position and orientation.

[0030] The longitudinal limiting unit 23 includes a pair of transverse rollers, both of which are arranged on the top surface of the edge banding 5. The two rollers are arranged back and forth along the traveling direction of the edge banding 5 and are installed on the top plate of the mounting frame 1 through the limiting frame.

[0031] By acting together on the top of the edge banding 5, the edge banding 5 is pressed against the top plate of the mounting frame 1 below, thereby limiting the floating or jumping of the edge banding 5 during the conveying process and providing a stable longitudinal cutting reference for the disc cutter 31.

[0032] The limiting wheel 24 can only rotate in the same direction. The limiting wheel 24 is equipped with a one-way bearing and can only rotate freely in the forward direction of the sealing strip 5. It is locked in the opposite direction.

[0033] During normal feeding, the edge banding 5 pushes the limit wheel 24 to rotate in its forward direction, passing smoothly. If the edge banding 5 has a momentary tendency to retreat due to increased cutting resistance at the moment of grooving, the one-way locking function of the limit wheel 24 will immediately take effect, firmly locking the edge banding 5 and preventing any slight reverse movement, so as to ensure that the relative position between the edge banding 5 and the disc cutter 31 remains absolutely fixed at the moment of cutting.

[0034] A fixed frame 25 is provided on the top plate of the mounting frame 1. A limiting wheel 24 is mounted on this fixed frame 25 via a rotating frame 26. The limiting wheel 24 can rotate relative to the rotating frame 26 about a vertical axis; at the same time, the entire rotating frame 26 can rotate relative to the fixed frame 25 about another vertical axis. A spring 27 is provided between the rotating frame 26 and the fixed frame 25, with one end of the spring 27 connected to the fixed frame 25 and the other end of the spring 27 connected to the rotating frame 26.

[0035] The function of spring 27 is to enable the limiting wheel 24 to adapt to edge banding strips 5 of different thicknesses, and to apply a pressure to the edge banding strip 5 pointing towards the reference plate 21 through the limiting wheel 24. In addition, when the disc cutter 31 is cutting, the spring 27 can push the limiting wheel 24, which in turn abuts the edge banding strip 5 to resist the cutting force and prevent the edge banding strip 5 from shifting.

[0036] When edge banding strips 5 of different thicknesses are fed in, the spring 27 causes the limiting wheel 24 to float via the rotating frame 26, always keeping it close to the side of the strip and applying a lateral pressure so that the other side of the edge banding strip 5 is close to the reference plate 21.

[0037] When the disc cutter 31 cuts into the edge banding 5, a lateral cutting force is generated that attempts to push the edge banding 5 away. At this time, the spring 27 is compressed and stores energy, and applies a thrust in the opposite direction through the limit wheel 24, firmly holding the edge banding 5 in place, counteracting the offset effect of the cutting force, and ensuring that the edge banding 5 remains stable at the moment of grooving.

[0038] A limiting groove 251 is provided on the fixed frame 25. Correspondingly, a limiting plate 261 is provided on the rotating frame 26 to be inserted into the limiting groove 251.

[0039] The limiting groove 251 and the limiting plate 261 together form a rotation limiting mechanism. The swing of the limiting plate 261 in the limiting groove 251 is used to limit the maximum allowable rotation angle of the rotating frame 26 relative to the fixed frame 25. When the rotating frame 26 rotates, the limiting plate 261 moves in the limiting groove 251. When the limiting plate 261 contacts the groove wall of the limiting groove 251, the rotation is stopped.

[0040] The position adjustment unit 4 consists of a longitudinal moving unit 41 and a transverse moving unit 42. The longitudinal moving unit 41 is mounted on the top plate of the mounting bracket 1, and the transverse moving unit 42 is mounted on the moving part of the longitudinal moving unit 41. The drive motor 3 is mounted on the transverse moving unit 42. The longitudinal moving unit 41 uses a high-precision lead screw module, and the transverse moving unit 42 is a cylinder. The end of the piston rod of the cylinder is directly fixed to the slider of the lead screw module, and a sliding frame is also mounted on the slider of the lead screw module. The end of the cylinder body is connected to this sliding frame, and the drive motor 3 is vertically fixed on this sliding frame.

[0041] A combination of two driving methods is used to achieve precise positioning of the disc cutter 31 in a two-dimensional plane. During grooving, the control system commands the lead screw module to move, driving its slider, sliding frame, cylinder, and the entire drive motor 3 assembly longitudinally to the predetermined grooving starting position. When grooving is required, the cylinder piston rod extends, pushing the sliding frame, the drive motor 3 mounted on it, and the disc cutter 31 to move laterally together, allowing the high-speed rotating cutter to smoothly cut into the back of the edge banding 5. After the grooving action is completed, the cylinder piston rod retracts, pulling the entire cutting head laterally back, so that the cutter completely disengages from the edge banding 5.

[0042] The implementation principle of the edge banding grooving device in this application embodiment is as follows: The drive motor 3 first accelerates smoothly to the rated speed under no-load conditions, so that the disc cutter 31 obtains sufficient rotational inertia and output torque. Then, the lead screw module of the position adjustment unit 4 drives the entire drive motor 3 assembly to move longitudinally to the predetermined grooving starting position. The cylinder piston rod extends to push the drive motor 3 and the disc cutter 31 to move laterally, so that the fully rotating disc cutter 31 smoothly cuts into the back of the edge banding 5, which is constrained and positioned by the reference plate 21, the vertical roller of the lateral limiting unit 22, the lateral roller of the longitudinal limiting unit 23, and the limiting wheel 24 with one-way bearing. During the cutting process, the limiting wheel 24 adapts to the thickness of the edge banding 5 under the action of the spring 27 and applies lateral pressure to offset the cutting force. At the same time, the one-way locking function of the limiting wheel 24 prevents the edge banding 5 from retracting, ensuring that the position of the edge banding 5 is absolutely fixed at the moment of grooving. After grooving is completed, the cylinder piston rod retracts and drives the cutter to withdraw laterally, completing a precise and smooth back grooving operation.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A grooving device for edge banding, characterized in that: Includes mounting bracket, edge banding limit unit, and drive motor, wherein: The top plate of the mounting bracket has an opening; The edge banding limiting unit is located near the opening; The drive motor is placed inside the mounting bracket. The drive motor can move in the horizontal and vertical directions through the position adjustment unit. The motor shaft of the drive motor passes through the opening, and a disc cutter is provided at the end of the motor shaft.

2. The edge banding grooving device according to claim 1, characterized in that: The edge banding limiting unit includes a reference plate, a transverse limiting unit, a longitudinal limiting unit, and limiting wheels, wherein: The reference plate is fixedly installed on the top plate of the mounting bracket, and the reference plate is provided with a cutting opening; Both the lateral limiting unit and the longitudinal limiting unit are located on the top plate of the mounting frame near the reference plate. The limiting wheel is located near the cutting opening.

3. The edge banding grooving device according to claim 2, characterized in that: The lateral limiting unit includes a pair of vertical rollers, which are rotatably positioned on the top plate of the mounting frame.

4. The edge banding grooving device according to claim 2, characterized in that: The longitudinal limiting unit includes a pair of transverse rollers, which are distributed along the horizontal plane and are mounted on the top plate of the mounting frame via a limiting bracket.

5. The edge banding grooving device according to claim 2, characterized in that: The limiting wheel can only rotate in the same direction.

6. The edge banding grooving device according to claim 2, characterized in that: The top plate of the mounting frame is provided with a fixed frame, and the limiting wheel is mounted on the fixed frame by rotation; The limiting wheel rotates around the vertical axis and engages with the rotating frame, and the rotating frame rotates around the vertical axis and engages with the fixed frame. A spring is provided between the rotating frame and the fixed frame.

7. The edge banding grooving device according to claim 6, characterized in that: The fixing frame is provided with a limiting groove; The rotating frame is provided with a limiting plate that is inserted into the limiting slot.

8. The edge banding grooving device according to claim 1, characterized in that: The position adjustment unit includes a longitudinal movement unit and a lateral movement unit, wherein: The longitudinal moving unit is disposed on the top plate of the mounting frame; The lateral movement unit is disposed on the longitudinal movement unit; The drive motor is mounted on the lateral movement unit.

Images