A stone floor laser U-shaped groove processing equipment

Abstract

The present application relates to the field of stone floor machining, especially to a kind of stone floor laser U-shaped groove processing equipment.It includes workbench, conveying belt, obliquely arranged cutting blade and two groups of laser heating and pressure wheel forming units arranged in turn along the conveying direction.The present application forms a series of collaborative processing assembly line by setting two groups of laser heating and pressure wheel forming units in front and back.The differential division of labor of preforming with large deformation by front unit and precision sizing by rear unit realizes the collaborative optimization of processing efficiency and forming quality.The scheme not only effectively avoids defects such as insufficient material softening and surface wrinkle, but also widens the adaptation range of process parameters, ensuring high-quality, high-efficiency and no edge collapse processing of stone floor U-shaped groove.

Description

Technical Field

[0001] This invention relates to the field of mechanical processing of crystalline flooring, and more particularly to a laser U-groove processing device for crystalline flooring. Background Technology

[0002] SPC flooring, as a new type of environmentally friendly flooring material, relies heavily on the quality of its click-lock mechanism to determine its installation effect and lifespan. In traditional U-groove processing, increasing efficiency (by accelerating the feed speed) often results in insufficient heating and molding time, leading to inadequate material softening, incomplete molding, and surface wrinkles—all quality defects. Conversely, reducing speed and increasing power or pressure to ensure quality results in low production efficiency, failing to meet the demands of large-scale production. Summary of the Invention

[0003] The present invention aims to provide a laser U-groove processing equipment for stone crystal flooring to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A laser U-groove processing device for crystalline flooring includes a worktable, a conveyor roller rotatably connected to the worktable, a conveyor belt rotatably connected to the conveyor roller, a support frame connected to the worktable, a limit strip connected to the worktable, a connecting frame connected to the worktable, a stepper motor connected to the connecting frame, a cutting blade connected to the output end of the stepper motor, the cutting blade being rotatably connected to the connecting frame, and the cutting blade being inclined; a laser heating unit connected to the worktable; a pressure roller forming unit connected to the support frame; the laser heating unit including a laser connected to the worktable; the pressure roller forming unit including an electric telescopic rod connected to the support frame, a connecting plate connected to the telescopic end of the electric telescopic rod, and a pressure roller rotatably connected to the connecting plate; two sets of laser heating units and pressure roller forming units are provided, arranged sequentially along the conveyor belt conveying direction; and a controller is connected to the worktable.

[0005] Preferably, the bracket is connected to a hydraulic rod, the telescopic end of the hydraulic rod is connected to a horizontal plate, the horizontal plate is slidably connected to the bracket, the horizontal plate is rotatably connected to a limit roller, and the limit roller cooperates with the conveyor belt.

[0006] Preferably, the workbench is connected to a mounting plate, the mounting plate is connected to a servo motor, the output end of the servo motor is connected to a rotating shaft, the rotating shaft is rotatably connected to the workbench, the rotating shaft is connected to a first pulley, the transmission roller is connected to a second pulley, and the first pulley and the second pulley are connected together to a transmission belt.

[0007] Preferably, the limiting strip is L-shaped.

[0008] Preferably, the workbench is connected to a vertical plate, the vertical plate is connected to an electric telescopic rod II, the telescopic end of the electric telescopic rod II is connected to a clamping plate, the clamping plate is slidably connected to the workbench, and the clamping plate cooperates with the limiting strip.

[0009] Preferably, the cutting blade has a tilt angle of 30°.

[0010] Preferably, the circumferential surface of the pressure roller is provided with a shaped curved surface, and the laser head of the laser points to the beveled surface cut by the cutting blade on the crystalline floor.

[0011] Preferably, the laser power in the two sets of laser heating units can be adjusted independently, and the preset power value of the front laser heating unit is greater than the preset power value of the rear laser heating unit; the forming surfaces of the pressure rollers in the two sets of pressure roller forming units have different curvature radii, and the curvature radius of the pressure roller in the front pressure roller forming unit is smaller than the curvature radius of the pressure roller in the rear pressure roller forming unit.

[0012] The beneficial effects of this technical solution compared to existing technologies are as follows: 1. This solution establishes a sequential, collaborative process of "roughing + finishing" by setting up two sets of laser heating and pressure roller forming units, achieving high efficiency and high quality. The front unit uses a high-power laser and a small-curvature pressure roller to handle rapid, large-deformation pre-forming, undertaking the main processing tasks to improve efficiency. The rear unit uses a low-power laser and a standard-curvature pressure roller to perform secondary heating (to eliminate internal stress) and precision rolling shaping of the pre-forming groove, ensuring final dimensional accuracy and surface finish. This division of labor and collaboration broadens the process window, ensuring high-speed production while avoiding defects such as insufficient softening and incomplete forming due to insufficient heating time, achieving stable, high-quality output at high linear speeds.

[0013] 2. By using inclined cutting blades for pre-processing, combined with subsequent laser heating and pressure roller rolling, a smooth bevel is first mechanically cut out, removing most of the excess material and avoiding direct, forceful cutting of the final contour. Then, laser heating softens the material, followed by plastic shaping with pressure rollers. This eliminates the mechanical conditions that cause edge chipping at the source, resulting in a complete and smooth U-shaped groove edge, significantly improving product yield and the long-term durability of the latch.

[0014] 3. By setting up dual lasers with independently adjustable power and dual pressure rollers with different radii of curvature, precise matching and optimization of process parameters are achieved, giving the equipment excellent adaptability and intelligence. The high-power laser at the front ensures sufficient softening, while the low-power laser at the rear acts as a "tempering" agent and precisely controls the temperature to prevent overheating. The small-curvature pressure roller at the front achieves efficient shaping, while the standard pressure roller at the rear completes the final shaping.

[0015] 4. By setting up L-shaped limit strips, clamping plates, hydraulic rods and limit rollers, a three-dimensional constraint and pressing system is formed on the floor from all sides and from top to bottom, ensuring ultra-high positioning accuracy and stability during the processing and preventing any slight displacement or vibration under laser impact and pressure roller pressure.

[0016] 5. By precisely pointing the laser head at the pre-cut beveled surface, extreme precision in energy delivery is achieved, significantly improving heating efficiency and effectively controlling the heat-affected zone, avoiding energy waste and ineffective heating of non-processed areas. This not only reduces energy consumption but, more importantly, minimizes the thermal impact on the floor substrate, preventing board deformation or performance degradation due to overheating, making the processing more energy-efficient, controllable, and reliable.

[0017] 6. By incorporating servo motors and belt drives, a smooth, precise, and programmable feed motion is provided for the conveyor belt. The servo motors, in conjunction with the belt drives, enable precise start / stop, constant speed, or variable speed movement, ensuring that the position and speed of the floorboard strictly meet process requirements as it passes through each processing unit. This precise transmission control is crucial for achieving synchronization between the laser and pressure rollers, ensuring consistent processing conditions for each U-groove, and providing the power guarantee for the high-precision, automated operation of the entire equipment. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is the left view of the present invention; Figure 4 for Figure 3 Enlarged view of point A; Reference numerals in the attached drawings: 1. Workbench; 2. Transmission belt; 3. First pulley; 4. Servo motor; 5. Mounting plate; 6. Controller; 7. Connecting frame; 8. Stepper motor; 9. Hydraulic rod; 10. Electric telescopic rod II; 11. Vertical plate; 12. Bracket; 13. Transmission belt; 14. Second pulley; 15. Clamping plate; 16. Horizontal plate; 17. Limiting roller; 18. Rotating shaft; 19. Transmission roller; 20. Laser; 21. Electric telescopic rod I; 22. Connecting plate; 23. Pressure roller; 24. Limiting strip. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments: like Figure 1-4 The illustrated laser U-groove processing equipment for stone crystal flooring includes a worktable 1, with several transmission rollers 19 rotatably connected to the worktable 1. All transmission rollers 19 are rotatably connected to a conveyor belt 13. A support 12 is connected to the top of the worktable 1. A limit strip 24 is connected to one end of the worktable 1 near the transmission rollers 19. A connecting frame 7 is connected to the worktable 1, and a stepper motor 8 is connected to the connecting frame 7. A cutting blade is connected to the output end of the stepper motor 8. The cutting blade is rotatably connected to the connecting frame 7 and is inclined. A laser heating unit is connected to the worktable 1, and a pressure roller forming unit is connected to the support 12. The laser heating unit includes a laser 20 (CO2 laser 20) connected to the worktable 1. The laser of the CO2 laser 20 is used as a heat source. The basic principle of its generation and its industrial application for heating and cutting non-metallic materials are known and will not be elaborated further here. The pressure roller forming unit includes several electric telescopic rods 21, each connected to a bracket 12. Two electric telescopic rods 21 form a group, and each group's telescopic ends are connected to a connecting plate 22. Each connecting plate 22 is rotatably connected to multiple pressure rollers 23. Two sets of laser heating and pressure roller forming units are provided, arranged sequentially along the conveyor belt 13. A controller 6 is connected to the worktable 1. The controller 6 is electrically connected to all actuators, including the servo motor 4, stepper motor 8, hydraulic rod 9, electric telescopic rods, and laser 20. It coordinates the timing of the entire processing flow and can independently set and control the power of the front and rear lasers 20 and the action parameters of each actuator, achieving intelligent production. The servo motor 4, stepper motor 8, hydraulic rod 9, and electric telescopic rod are existing technologies and will not be described in detail here.

[0020] like Figure 1As shown, the support 12 is connected to multiple hydraulic rods 9. The telescopic ends of all hydraulic rods 9 are connected to a horizontal plate 16. The outer wall of the horizontal plate 16 is slidably connected to the inner wall of the support 12. Several limiting rollers 17 are rotatably connected to the inner wall of the horizontal plate 16. All limiting rollers 17 cooperate with the conveyor belt 13. In use, the hydraulic rods 9 drive the horizontal plate 16 to move downward, so that the limiting rollers 17 on the horizontal plate 16 press the floor vertically onto the conveyor belt 13. This design ensures that the floor will not warp or shift during subsequent cutting, heating, and rolling processes, while allowing the conveyor belt 13 to smoothly drive the floor forward by friction. The side wall of the workbench 1 is connected to a mounting plate 5. The mounting plate 5 is connected to a servo motor 4. The output end of the servo motor 4 is connected to a rotating shaft 18. The rotating shaft 18 is rotatably connected to the workbench 1. The rotating shaft 18 is connected to a first pulley 3. The conveyor roller 19 is connected to a second pulley 14. The first pulley 3 and the second pulley 14 are connected to a drive belt 2. In operation, the servo motor 4 is started, causing its output to drive the rotating shaft 18 to rotate. The first pulley 3 rotates accordingly, and under the transmission of the drive belt 2, the second pulley 14 rotates, driving the transmission rollers 19 to rotate intermittently or at a constant speed. Under the transmission of the conveyor belt 13, all transmission rollers 19 rotate synchronously at the same speed. This servo control ensures extremely precise dwell time and feed speed in each unit of the flooring, forming the basis for fully automated processing. The limit bar 24 is L-shaped. A vertical plate 11 is connected to the top of the worktable 1, and several electric telescopic rods 10 are connected to the vertical plate 11. All the telescopic ends of the electric telescopic rods 10 are connected to a clamping plate 15. The bottom of the clamping plate 15 is slidably connected to the top of the worktable 1, and the clamping plate 15 cooperates with the limit bar 24. The cutting blade has a 30° inclination angle, enabling precise V-shaped bevel cutting at the edge of the flooring. This proactively removes most of the excess material during subsequent laser roll forming, avoiding the crucial pre-treatment that prevents wrinkles and internal stress in the final U-shaped groove.

[0021] The circumferential surface of the pressure roller 23 is provided with a forming curved surface, and the laser head of the laser 20 is pointed at the beveled surface cut by the cutting blade on the crystalline floor. The power of the lasers 20 in the two sets of laser heating units can be adjusted independently, with the preset power value of the front laser heating unit being greater than that of the rear laser heating unit; the radii of curvature of the forming curved surfaces of the pressure rollers 23 in the two sets of pressure roller forming units are different, with the radius of curvature of the pressure roller 23 in the front pressure roller forming unit being smaller than that in the rear pressure roller forming unit. The laser 20 in the first unit uses higher power to rapidly and deeply heat the pre-cut beveled surface, softening it to its optimal plasticity; the pressure roller 23 uses a forming curved surface with a smaller radius of curvature, responsible for initially rolling the softened material under high pressure with a large deformation, quickly forming the basic outline of the U-shaped groove. The laser 20 in the second unit uses lower power to perform secondary heating on the pre-formed groove. The main purpose of this step is to eliminate the internal stress generated in the previous unit and to soften the material appropriately in preparation for finishing. The radius of curvature of the forming surface of the pressure roller 23 is completely consistent with the final design of the U-shaped groove, and the surface finish is extremely high. Its task is to perform the final "ironing" and precision shaping of the groove opening, thereby obtaining a perfect U-shaped groove with accurate dimensions and a smooth, glaze-like surface.

[0022] The specific implementation process is as follows: First, the quartz flooring to be processed is placed on the conveyor belt 13, with one side pressed against the L-shaped limiting strip 24. The electric telescopic rod 10 is activated, pushing the clamping plate 15 to move. Together with the limiting strip 24, the clamping plate and clamp the flooring, achieving precise lateral positioning. This clamping force is precisely calculated and controlled to eliminate assembly gaps while ensuring that excessive friction does not hinder the longitudinal feed movement of the flooring driven by the conveyor belt 13. Simultaneously, the hydraulic rod 9 drives the horizontal plate 16 downwards, causing the limiting roller 17 to press the flooring firmly onto the conveyor belt 13. This pressure primarily provides vertical constraint, preventing the flooring from warping or shifting during processing, while allowing the flooring to pass smoothly under friction.

[0023] Subsequently, the servo motor 4 starts, driving the transmission belt 13 to feed intermittently via the transmission belt 2. The static friction between the transmission belt 13 and the bottom surface of the floor is sufficient to overcome the slight sliding friction brought by the clamping plate 15, allowing the floor to move with the transmission belt. The floor first passes through the inclined cutting blade, and the stepper motor 8 drives the cutting blade to rotate at high speed, precisely cutting a 30° bevel at the edge of the floor.

[0024] After pre-cutting, the floorboards are conveyed to the first processing unit. A first laser 20 emits a laser beam, precisely irradiating the pre-cut bevel, rapidly softening its surface material to a malleable state. Immediately afterwards, a first electrically operated telescopic rod 21 pushes the first pressure roller 23 forward, rolling the softened bevel. Due to the small radius of curvature of the first pressure roller 23 and the high laser power, this unit primarily performs large deformation pre-forming of the material.

[0025] Next, the flooring enters the second processing unit. A second laser 20 heats the pre-formed groove at a lower power to eliminate internal stress and moderately soften the material. Subsequently, a second pressure roller 23 (whose radius of curvature matches the final design of the U-shaped groove) performs finishing rolling to ultimately form a smooth, dimensionally accurate, and stress-free U-shaped groove.

[0026] During the processing, all actions are coordinated and controlled by controller 6. After processing one side is completed, the equipment can repeat the above process to process the other side of the floor, or the equipment can be symmetrically set up to complete the processing of both sides simultaneously.

[0027] The above descriptions are merely embodiments of the present invention, and common knowledge such as specific technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A laser U-groove processing equipment for stone crystal flooring, characterized in that: Includes a worktable (1), the worktable (1) is rotatably connected to a transmission roller (19), the transmission roller (19) is rotatably connected to a transmission belt (13), the worktable (1) is connected to a support (12), the worktable (1) is connected to a limit bar (24), the worktable (1) is connected to a connecting frame (7), the connecting frame (7) is connected to a stepper motor (8), the output end of the stepper motor (8) is connected to a cutting blade, the cutting blade is rotatably connected to the connecting frame (7), the cutting blade is inclined, the worktable (1) is connected to a laser heating unit, and the support (12) is connected to... There is a pressure roller forming unit. The laser heating unit includes a laser (20) and is connected to the worktable (1). The pressure roller forming unit includes an electric telescopic rod (21) and is connected to a bracket (12). The telescopic end of the electric telescopic rod (21) is connected to a connecting plate (22). The connecting plate (22) is rotatably connected to a pressure roller (23). There are two sets of laser heating units and pressure roller forming units. The two sets of laser heating units and pressure roller forming units are arranged sequentially along the conveyor belt conveying direction. The worktable (1) is connected to a controller (6).

2. The laser U-groove processing equipment for stone crystal flooring as described in claim 1, characterized in that: The bracket (12) is connected to a hydraulic rod (9), and the telescopic end of the hydraulic rod (9) is connected to a horizontal plate (16). The horizontal plate (16) is slidably connected to the bracket (12), and the horizontal plate (16) is rotatably connected to a limiting roller (17). The limiting roller (17) cooperates with the conveyor belt (13).

3. The laser U-groove processing equipment for stone crystal flooring as described in claim 1, characterized in that: The workbench (1) is connected to a mounting plate (5), the mounting plate (5) is connected to a servo motor (4), the output end of the servo motor (4) is connected to a rotating shaft (18), the rotating shaft (18) is rotatably connected to the workbench (1), the rotating shaft (18) is connected to a first pulley (3), the transmission roller (19) is connected to a second pulley (14), and the first pulley (3) and the second pulley (14) are connected to a transmission belt (2).

4. The laser U-groove processing equipment for stone crystal flooring as described in claim 1, characterized in that: The limiting strip is L-shaped.

5. The laser U-groove processing equipment for stone crystal flooring as described in claim 4, characterized in that: The workbench (1) is connected to a vertical plate (11), the vertical plate (11) is connected to an electric telescopic rod (10), the telescopic end of the electric telescopic rod (10) is connected to a clamp (15), the clamp (15) is slidably connected to the workbench (1), and the clamp (15) cooperates with the limiting strip (24).

6. The laser U-groove processing equipment for stone crystal flooring as described in claim 1, characterized in that: The cutting blade has a tilt angle of 30°.

7. The laser U-groove processing equipment for stone crystal flooring as described in claim 1, characterized in that: The circumferential surface of the pressure roller (23) is provided with a shaped curved surface, and the laser head of the laser (20) points to the beveled surface cut by the cutting blade on the stone crystal floor.

8. The laser U-groove processing equipment for stone crystal flooring as described in claim 1, characterized in that: The power of the laser (20) in the two sets of laser heating units can be adjusted independently. The preset power value of the laser heating unit in front is greater than the preset power value of the laser heating unit in rear. The curvature radii of the forming surfaces of the pressure rollers (23) in the two sets of pressure roller forming units are different. The curvature radius of the pressure roller (23) in the front pressure roller forming unit is smaller than the curvature radius of the pressure roller (23) in the rear pressure roller forming unit.

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