Flying laser die cutting machine

Abstract

The utility model belongs to cutting equipment technical field especially for high -speed laser die -cutting machine. Including frame, the frame is installed with marble mesa, and the middle part of marble mesa is installed with punch platform, and the left and right sides of marble mesa are installed with material feeding frame and material pulling frame respectively, and the material pulling frame is installed with incremental encoder, and the periphery of marble mesa is installed with stand. The utility model is provided with three -dimensional dynamic focusing galvanometer, and the Z -axis real -time dynamic focusing adjustment is adjusted, and the XY -axis is cooperated with control, ensures that the full width of any position can keep focal point precision, and the laser generator is cooperated with work, realizes the high speed, accurate direction and focusing control of laser beam in three -dimensional space, and the equipment is equipped with CCD visual positioning, can realize multiple sleeve cutting, can also realize seamless splicing beyond the width of the drawing, realizes the same cutting efficiency as flat cutter die cutting, and the equipment carries the winding material frame, can achieve the semi -automatic processing of roll materials.

Description

Technical Field

[0001] This utility model relates to the field of cutting equipment technology, specifically a high-speed laser die-cutting machine. Background Technology

[0002] The gantry laser cutting machine adopts a gantry structure, with the cutting worktable separated from the main unit. This design ensures that the worktable will not affect the machine tool accuracy due to thermal deformation during the cutting process. Its working principle is to use a laser beam emitted from the laser generator, which is focused into a high-power-density laser beam by the optical path system. When the laser beam irradiates the material surface, the material absorbs the laser energy, and the temperature rises sharply. After reaching the boiling point, it begins to vaporize and form a hole. Accompanied by a high-pressure airflow, the material forms a kerf as the relative position of the beam and the workpiece moves. The laser can move with the gantry, breaking through the limitations of the size range of traditional flying optical path laser cutting.

[0003] Most laser die-cutting equipment on the market uses a gantry flying optical path structure, which uses a laser focusing cutting head or a common galvanometer terminal to move in the X and Y axes to achieve cutting. Since the lead screw module drives the entire heavy cutting head (or galvanometer) and Z-axis structure, in complex die-cutting patterns, frequent starts and stops, high-speed connection of small line segments, and corner deceleration make the actual effective processing speed much lower than the theoretical maximum speed of the lead screw. The insufficient dynamic performance of the lead screw system is particularly obvious when frequently starting and stopping and processing small line segments. The processing time of this type of structure is relatively long, which limits it mainly to the sampling and small-batch production stage.

[0004] Therefore, we proposed the high-speed laser die-cutting machine to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention provides a high-speed laser die-cutting machine, which solves the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0009] A high-speed laser die-cutting machine includes a frame on which a marble table is mounted. A perforated plate is mounted in the center of the marble table. A feeding rack and a pulling rack are mounted on the left and right sides of the marble table, respectively. An incremental encoder is mounted on the pulling rack. Columns are mounted around the marble table, and a top plate is mounted on the columns. A laser generator, a beam expander, and a three-dimensional dynamic focusing galvanometer are mounted on the top plate. The three-dimensional dynamic focusing galvanometer is connected to the laser generator through the beam expander. A Y-axis linear module is mounted on the marble table, and an X-axis linear module is mounted on the slide of the Y-axis linear module. A CCD vision camera is mounted on the slide of the X-axis linear module.

[0010] Furthermore, a cover is installed on the upper part of the frame, and an industrial control panel is embedded on the front side of the cover.

[0011] Furthermore, the incremental encoder, laser generator, three-dimensional dynamic focusing galvanometer, Y-axis linear module, X-axis linear module, and CCD vision camera are electrically connected to the industrial control panel.

[0012] Furthermore, a slide rail is installed on the front side of the machine cover, and a sliding door is installed on the slide rail.

[0013] Furthermore, the machine cover has inlets and outlets on the left and right sides, and the feeding rack and pulling rack correspond to the positions of the inlets and outlets.

[0014] Furthermore, U-shaped support plates are installed at both ends of the marble countertop, and the Y-axis linear module is fixed to the U-shaped support plates.

[0015] Furthermore, the center of the marble countertop has a hollow structure, and the perforated plate is fixed in the hollow structure.

[0016] Furthermore, a dust collection hopper is installed in the frame, and a suction port is provided on the rear side of the dust collection hopper. The dust collection hopper is located directly below the punching table.

[0017] Furthermore, a dust collection hood is installed on the rear side of the marble countertop, and the dust collection hood corresponds to the position of the perforated countertop.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a high-speed laser die-cutting machine, which has the following beneficial effects:

[0020] This invention features a three-dimensional dynamic focusing galvanometer that adjusts its focus in real time along the Z-axis, in conjunction with XY-axis coordinated control, ensuring that the focus accuracy is maintained at any position across the entire surface. Working in conjunction with the laser generator, it achieves high-speed, precise pointing and focusing control of the laser beam in three-dimensional space. The equipment is equipped with CCD vision positioning, enabling multiple overlapping cuts. It can also seamlessly splice drawings that exceed the surface area, achieving the same cutting efficiency as flatbed die-cutting. The equipment also includes a take-up rack, enabling semi-automatic processing of roll materials. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a partial rear view of the present invention;

[0023] Figure 3 This is a partial schematic diagram of the present invention;

[0024] Figure 4 For the present utility model Figure 3 Exploded view.

[0025] In the diagram: 1. Frame; 2. Marble countertop; 3. Perforated table; 4. Feed rack; 5. Pull rack; 6. Incremental encoder; 7. Column; 8. Top plate; 9. Laser generator; 10. Beam expander; 11. 3D dynamic focusing galvanometer; 12. Y-axis linear module; 13. X-axis linear module; 14. CCD vision camera; 15. Machine cover; 16. Industrial control panel; 17. Slide rail; 18. Sliding door; 19. Inlet / outlet; 20. U-shaped support plate; 21. Dust hopper; 22. Suction inlet; 23. Dust hood. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example

[0028] like Figures 1-4As shown, a high-speed laser die-cutting machine according to one embodiment of this utility model includes a frame 1, on which a marble tabletop 2 is mounted, and a perforated plate 3 is mounted in the center of the marble tabletop 2. A feeding rack 4 and a pulling rack 5 are respectively mounted on the left and right sides of the marble tabletop 2, and an incremental encoder 6 is mounted on the pulling rack 5. Columns 7 are mounted around the marble tabletop 2, and a top plate 8 is mounted on the columns 7. A laser generator 9, a beam expander 10, and a three-dimensional dynamic focusing galvanometer 11 are mounted on the top plate 8, and the three-dimensional dynamic focusing galvanometer 11 is connected to the laser generator 9 through the beam expander 10. A Y-axis linear module 12 is mounted on the marble tabletop 2. Furthermore, an X-axis linear module 13 is mounted on the slide of the Y-axis linear module 12, and a CCD vision camera 14 is mounted on the slide of the X-axis linear module 13. The three-dimensional dynamic focusing galvanometer 11 is dynamically adjusted in real time through the Z-axis, and coordinated with the XY-axis to ensure that the focus accuracy can be maintained at any position on the full-width surface. It works in conjunction with the laser generator 9 to achieve high-speed, precise pointing and focusing control of the laser beam in three-dimensional space. The equipment is equipped with CCD vision positioning, which can realize multiple overlapping cuts. It can also achieve seamless splicing of drawings that exceed the width of the sheet, achieving the same cutting efficiency as flat die cutting. The equipment carries a take-up rack, which can achieve semi-automatic processing of roll materials.

[0029] like Figure 1 As shown, in some embodiments, a cover 15 is installed on the upper part of the frame 1, and an industrial control panel 16 is embedded on the front side of the cover 15. The industrial control panel 16 is a core component of the industrial automation system, mainly used to realize the automated control and real-time monitoring of the production process. It realizes the automated control logic through a programmable logic controller (PLC) or an industrial computer (industrial control computer), supports sequential control, data acquisition, equipment linkage and other operations, and ensures that the production process is executed efficiently according to the preset program.

[0030] like Figures 1-3As shown, in some embodiments, the incremental encoder 6, laser generator 9, three-dimensional dynamic focusing galvanometer 11, Y-axis linear module 12, X-axis linear module 13, and CCD vision camera 14 are electrically connected to the industrial control panel 16. The incremental encoder 6 is mainly used to detect the angular or linear displacement of the roll material and convert these physical displacements into electrical signals for transmission and processing. Specifically, the encoder generates periodic electrical signals through changes in the bright and dark stripes on the code disk, using the number of pulses to represent the displacement magnitude. When the roll material moves, the encoder outputs a pulse signal proportional to the rotation or movement distance of the roll material. It is commonly used in positioning, speed measurement, and other scenarios in control systems. The laser generator 9 is used to generate a high-energy-density laser beam and is the core component of the entire system. Common lasers include CO2 lasers, ultrafast ultraviolet picosecond lasers, and femtosecond lasers. The three-dimensional dynamic focusing galvanometer 11 mainly consists of XY two-dimensional galvanometers, a Z-axis dynamic focusing module, control software, and supporting optical components (such as beam expanders and scanning lenses). The XY galvanometers are responsible for planar scanning, and the Z-axis compensates for optical path difference by moving back and forth to ensure that the focus is always aligned with the processing surface. The software controls the Z-axis in coordination with the X and Y axes, accurately matching the optical path as the light spot moves to different positions in the two-dimensional plane, so that any position on the full-width plane is at the focal point of the laser. The Y-axis linear module 12 and the X-axis linear module 13 are used to convert rotational motion into linear motion, enabling the CCD vision camera 14 to move in the two-dimensional plane. Machine 14 is a high-tech inspection device based on an industrial computer, mainly used for the identification, positioning, and quality inspection of precision-machined products in industrial production. Its core consists of a CCD image sensor, an image processing unit, and a programmable interface. It converts three-dimensional spatial information into two-dimensional image data through an optical sensor, and then achieves spatial positioning through coordinate system transformation and algorithm analysis. Essentially, it maps the geometric features of the physical world to a pixel coordinate system, ultimately converting them into control commands in a mechanical coordinate system. The output port of the laser generator 9 connects to standard connectors such as QBH / QD / FC fiber optic cables, using high-power carbon dioxide radio frequency lasers or ultrafast lasers for transmission. The three-dimensional galvanometer scanning head is equipped with a laser incident interface, where the fiber optic cable is connected. Inside the galvanometer system, a collimating lens first... The diverging laser beam is converted into collimated (parallel) light and then fed into the subsequent XY galvanometer and dynamic focusing module. The laser generator 9 outputs a free-space beam (usually pre-collimated), which is guided by the beam expander 10 (ensuring the beam diameter matches the galvanometer aperture and optimizing beam quality). The beam is directly aligned with the entrance aperture of the 3D galvanometer scanning head. The galvanometer control card is the brain of the system, usually installed as a PCIe card in an industrial computer or as a separate external box connected to the galvanometer scanning head. It connects to the X-axis galvanometer motor drive signal (usually a ±10V analog voltage signal to control the deflection angle of the X-axis mirror) and the Y-axis galvanometer motor drive signal (also a ±10V analog voltage signal to control the deflection angle of the Y-axis mirror).Connect the dynamic focusing (Z-axis) drive signal (usually ±10V or 0-10V analog voltage signal, controlling the precise displacement of the lens in the dynamic focusing module). The galvanometer control card receives the processing data stream (X, Y, Z three-dimensional coordinate sequence + laser parameter instructions) from the host computer software (such as GalvoTools, Scanlab RTC, or equipment-specific control software), and decomposes and calculates the three-dimensional coordinate points (X, Y, Z):

[0031] X and Y coordinates are converted into corresponding X-axis and Y-axis galvanometer driving voltages.

[0032] Z-coordinate -> Converted into the driving voltage of the dynamic focusing lens through a pre-stored height-voltage calibration curve (F-theta or Z-map);

[0033] Based on path and speed requirements, generate smooth, synchronized X / Y / Z analog drive signals;

[0034] Based on processing requirements (such as marking, cutting, welding), generate precise timing laser control signals (TTL pulses / Q-switch, or analog modulation voltage). The laser pulse (or modulation signal) must be precisely triggered the instant the laser focus reaches the target position (X, Y, Z). During high-speed scanning, the movement of the Z-axis (dynamic focusing) must be perfectly matched with the movement of the X / Y axes to ensure that the spot is always in the best focused state throughout the entire scanning path.

[0035] like Figure 2 As shown, in some embodiments, a slide rail 17 is installed on the front side of the machine cover 15, and a sliding door 18 is installed on the slide rail 17. The sliding door 18 is made by the slide rail 17 (a combination of a slider and a guide rail). The slider is a moving part installed on the sliding door 18, and the guide rail is a fixed part installed on the machine cover 15. When the door needs to be opened, the slider moves horizontally along the guide rail with the door panel. The door panel does not occupy too much space during the sliding process, which is convenient for operation. When the door panel is closed, the slider will return to its original position, and the door panel will be fixed on the machine cover 15 again. This can ensure the working safety of the cutting equipment and ensure that the operator will not be affected by danger when the door panel is opened during the processing.

[0036] like Figure 1 As shown, in some embodiments, the machine cover 15 is provided with inlets and outlets 19 on the left and right sides. The feeding rack 4 and the pulling rack 5 correspond to the positions of the inlets and outlets 19. The feeding rack 4 is used to unroll the rolled metal strip to ensure that the metal strip enters the processing stage flat and wrinkle-free. The pulling rack 5 uses a motor to drive a conveyor belt or chain and other conveying devices to transport the material from the inlet to the outlet to realize continuous material conveying. When processing rolled materials, the inlets and outlets 19 are for the convenience of the introduction and flow of rolled materials.

[0037] like Figure 4 As shown, in some embodiments, U-shaped support plates 20 are installed at both ends of the marble countertop 2, and the Y-axis linear module 12 is fixed on the U-shaped support plate 20. The U-shaped support plate 20 is for convenient positioning of the unfolded roll material, and also serves to avoid misalignment.

[0038] like Figure 4 As shown, in some embodiments, the center of the marble countertop 2 is a hollow structure, and the perforated plate 3 is fixed in the hollow structure. During laser cutting, the high-energy laser beam causes the material surface to melt, vaporize or burn rapidly, producing metal or non-metal fragments and dust, and the fragments fall downward from the holes in the perforated plate 3.

[0039] like Figure 2-3 As shown, in some embodiments, a dust collection hopper 21 is installed in the frame 1, and an intake port 22 is provided on the rear side of the dust collection hopper 21. The dust collection hopper 21 is located directly below the punching plate 3. The dust collection hopper 21 collects particulate matter in the dust-laden gas by means of gravity settling or airflow separation, and stores it in a concentrated manner for subsequent processing.

[0040] like Figure 2 As shown, in some embodiments, a dust collection hood 23 is installed on the rear side of the marble countertop 2, and the dust collection hood 23 corresponds to the position of the perforated table plate 3. Before use, the suction port 22 at the bottom of the dust collection hopper 21 and the interface of the dust collection hood 23 are connected to the vacuum cleaner through a hose. The air force is used to instantly suck in the smoke and dust generated during cutting. After the smoke and dust are filtered by the purification unit in the vacuum cleaner, clean gas is discharged, which can prevent particulate matter from spreading to other areas of the equipment.

[0041] In operation, automated control logic is implemented via the industrial control panel 16. The CCD vision camera 14 acquires images through photoelectric conversion, transforming three-dimensional spatial information into two-dimensional image data. Spatial positioning is then achieved through coordinate system transformation and algorithm analysis. The laser generator 9 generates a high-energy-density laser beam, which is guided by the optical beam expander 10. The beam is directly aligned with the entrance aperture of the three-dimensional galvanometer scanning head. The galvanometer control card in the three-dimensional dynamic focusing galvanometer 11 receives data from the host computer software (such as GalvoTools, Scanlab). The RTC (or dedicated equipment control software) generates a processing data stream (X, Y, Z three-dimensional coordinate sequence + laser parameter commands). Based on processing requirements, it generates precise timing laser control signals (TTL pulses / Q-switch, or analog modulation voltage). When the laser focus reaches the target position (X, Y, Z), an extremely fine focal point is formed. The focused laser beam irradiates the workpiece surface, rapidly heating the material to its melting or vaporization temperature. Under the action of the laser beam, the auxiliary gas (such as compressed air) reacts chemically with the high-temperature material, further accelerating the melting and blowing process. The CNC system then processes the data according to the pre-set parameters. The device sets the cutting path and parameters to control the movement of the laser beam, enabling the cutting of complex shapes. The three-dimensional dynamic focusing galvanometer 11 is dynamically adjusted in real time via the Z-axis, and works in conjunction with the XY-axis to ensure that the focus accuracy is maintained at any position on the entire surface. Working in conjunction with the laser generator 9, it achieves high-speed, precise pointing and focusing control of the laser beam in three-dimensional space. The device is equipped with CCD vision positioning, which can achieve multiple overlapping cuts. It can also achieve seamless splicing of drawings that exceed the surface size, achieving the same cutting efficiency as flat die-cutting. The device carries a take-up rack, which can achieve semi-automatic processing of roll materials.

[0042] In summary, the three-dimensional dynamic focusing galvanometer 11, through real-time dynamic focusing adjustment along the Z-axis and coordinated control along the XY-axis, ensures that the focus accuracy can be maintained at any position across the entire width. Working in conjunction with the laser generator 9, it achieves high-speed, precise pointing and focusing control of the laser beam in three-dimensional space. The equipment is equipped with CCD vision positioning, enabling multiple overlapping cuts. It can also seamlessly splice drawings that exceed the width, achieving the same cutting efficiency as flatbed die-cutting. The equipment carries a take-up rack, enabling semi-automatic processing of roll materials.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-speed laser die-cutting machine, comprising a frame (1), characterized in that: A marble tabletop (2) is installed on the frame (1), and a perforated plate (3) is installed in the middle of the marble tabletop (2). A feeding rack (4) and a pulling rack (5) are installed on the left and right sides of the marble tabletop (2), and an incremental encoder (6) is installed on the pulling rack (5). Columns (7) are installed around the marble tabletop (2), and a top plate (8) is installed on the column (7). A laser generator (9), a beam expander (10) and a three-dimensional dynamic focusing galvanometer (11) are installed on the top plate (8), and the three-dimensional dynamic focusing galvanometer (11) is connected to the laser generator (9) through the beam expander (10). A Y-axis linear module (12) is installed on the marble tabletop (2), and an X-axis linear module (13) is installed on the slide of the Y-axis linear module (12). A CCD vision camera (14) is installed on the slide of the X-axis linear module (13).

2. The high-speed laser die-cutting machine according to claim 1, characterized in that: The upper part of the frame (1) is equipped with a cover (15), and the front side of the cover (15) is fitted with an industrial control panel (16).

3. The high-speed laser die-cutting machine according to claim 2, characterized in that: The incremental encoder (6), laser generator (9), three-dimensional dynamic focusing galvanometer (11), Y-axis linear module (12), X-axis linear module (13) and CCD vision camera (14) are electrically connected to the industrial control panel (16).

4. The high-speed laser die-cutting machine according to claim 2, characterized in that: The front side of the machine cover (15) is equipped with a slide rail (17), and a sliding door (18) is installed on the slide rail (17).

5. The high-speed laser die-cutting machine according to claim 2, characterized in that: The machine cover (15) has inlets and outlets (19) on the left and right sides, and the feeding rack (4) and the pulling rack (5) correspond to the positions of the inlets and outlets (19).

6. The high-speed laser die-cutting machine according to claim 1, characterized in that: The marble countertop (2) is equipped with U-shaped support plates (20) at both ends, and the Y-axis linear module (12) is fixed on the U-shaped support plate (20).

7. The high-speed laser die-cutting machine according to claim 1, characterized in that: The marble countertop (2) has a hollow structure in the middle, and the perforated plate (3) is fixed in the hollow structure.

8. The high-speed laser die-cutting machine according to claim 1, characterized in that: A dust collection hopper (21) is installed in the frame (1), and a suction port (22) is provided on the rear side of the dust collection hopper (21). The dust collection hopper (21) is located directly below the punching table (3).

9. The high-speed laser die-cutting machine according to claim 1, characterized in that: A dust collection hood (23) is installed on the rear side of the marble countertop (2), and the dust collection hood (23) corresponds to the position of the perforated tabletop (3).

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