A laser marking infeed device

Abstract

This invention relates to the field of laser marking machine technology and discloses a laser marking feeding device, comprising: a worktable with a fixed platform on top; a feeding screw, rotatably connected to the platform and arranged in parallel, driven by a motor, with a ball nut threadedly connected to it, a positioning seat fixed on the ball nut, a feeding tray detachably mounted on the positioning seat, and a pressure sensor electrically connected to a corresponding motor embedded in the center of the feeding tray; a picking plate, located at the end of the feeding screw conveyor above the platform, driven to rise and fall by an electric push rod, which is driven by a screw driver to move along the conveying direction of the feeding screw; and a laser marking device, located above the platform and facing downwards, driven by a multi-axis drive mechanism, with a control console fixed on the platform for controlling the multi-axis drive mechanism and the motor. The advantages of this invention are: it allows for simultaneous feeding at multiple stations, sequentially performing laser marking of multiple specifications, thus having wider applicability.

Description

Technical Field

[0001] This invention relates to the field of laser marking machine technology, specifically to a laser marking feeding device. Background Technology

[0002] Laser marking machines are opto-mechatronic devices that use high-energy-density laser beams to create permanent marks on material surfaces. Their core principle is that a laser generates a beam, which, after being focused by an optical system, causes physical and chemical changes on the material surface, such as vaporization, ablation, or discoloration, thereby imprinting text, QR codes, patterns, and other markings. The equipment typically consists of a laser, a galvanometer scanning system, a cooling system, and control software. It employs non-contact processing, eliminates tool wear, and achieves micron-level precision. Mainstream types include fiber optic, CO2, and ultraviolet laser marking machines, suitable for metals, non-metals, and heat-sensitive precision materials, respectively, and are widely used in product traceability and anti-counterfeiting labeling in the electronics, automotive, and medical device industries.

[0003] Currently, most laser marking machines use a single-station cyclic feeding system. During operation, the entire process of loading, marking, and unloading must be completed before the next cycle can begin, making it impossible to perform loading / unloading and processing concurrently. This structure not only makes it difficult to achieve synchronous or alternating multi-station operations but also suffers from limited tooling and fixture adaptability, hindering rapid switching of positioning references. When faced with workpieces of different sizes, shapes, or positioning requirements, the machine must be stopped to change fixtures and readjust parameters, disrupting continuous production and limiting the equipment's adaptability to multi-variety, small-batch production scenarios. Summary of the Invention

[0004] To solve the above-mentioned problems, this invention proposes a laser marking feeding device that can realize simultaneous feeding at multiple workstations and sequentially perform laser marking work of multiple specifications, thus having a wider range of applications.

[0005] To solve the above-mentioned technical problems, the technical solution proposed by this invention is: a laser marking feeding device, comprising: The workbench has a fixed platform on top; A feeding screw is rotatably connected to a platform, and several are arranged in parallel. It is driven by a motor fixed on the platform. A ball nut is threadedly connected to the screw. A positioning seat is fixed on the ball nut. A feeding tray is detachably mounted on the positioning seat. A pressure sensor electrically connected to the corresponding motor is embedded in the center of the feeding tray. The material handling plate is located at the end of the feeding screw conveyor above the platform and is driven to rise and fall by an electric push rod. The electric push rod is driven by a screw driver fixed on the platform to move along the feeding screw conveyor direction. The laser marking machine is positioned above the table, facing downwards, and is driven by a multi-axis drive mechanism. A control console for controlling the multi-axis drive mechanism and the motor is fixed on the table.

[0006] Furthermore, the platform is provided with slots that correspond one-to-one with the feed screws, and the feed screws are embedded in the slots.

[0007] Furthermore, the positioning seat is integrally formed with guide strips on both sides, and the inner wall of the groove is provided with guide grooves that match the guide strips.

[0008] Furthermore, the positioning seat has a cross-shaped groove at its center, and the bottom surface of the feeding tray has a cross-shaped protrusion that can be tightly engaged in the cross-shaped groove.

[0009] Furthermore, the material-taking plate is arranged across each feeding screw, and the edge of the platform near the conveying end of the feeding screw is inclined, and the width of the inclined surface is greater than the width of the material-taking plate.

[0010] Furthermore, the multi-axis drive mechanism includes an electric telescopic rod, cylinder one, and cylinder two. The electric telescopic rod is embedded in the platform, and its end is fixed with a base plate that is driven to move left and right. Cylinder one is fixed on the base plate, and cylinder two is fixed at the driving end of cylinder one and is driven to move back and forth by cylinder one. The laser marking device is fixed at the driving end of cylinder two and is driven to move up and down by cylinder two.

[0011] Furthermore, a display screen is fixedly installed on the front wall of the worktable to display the status of the feed screw and the working status of the laser marking device.

[0012] Compared with the prior art, the advantages of this invention are: the device adopts multiple parallel feeding screws for independent driving, and with the help of a stable guiding structure, it can drive multiple positioning seats and feeding trays to run at the same time, realize multi-station parallel feeding, and break the limitation that loading, marking and unloading cannot be done in parallel in the traditional single-station cycle mode.

[0013] The feeding tray adopts a cross-clamp structure for quick assembly and disassembly, ensuring precise positioning and convenient replacement. It allows for rapid switching of the appropriate tray based on workpiece size, shape, and positioning requirements, eliminating the need for prolonged machine downtime for fixture adjustments and meeting the needs of multi-variety, small-batch production. Combined with a multi-axis movable laser marking device, it can flexibly adjust the marking position and height, sequentially completing marking operations on workpieces of different specifications at different workstations, achieving continuous processing of multi-specification workpieces. Attached Figure Description

[0014] Figure 1 This is a perspective view of the present invention; Figure 2 This is a top view of the present invention; Figure 3 This is the front view of the present invention; Figure 4 This is a side view of the present invention.

[0015] As shown in the figure: 1. Workbench; 2. Tabletop; 3. Feed screw; 4. Motor; 5. Ball nut; 6. Positioning seat; 7. Feed tray; 8. Pressure sensor; 9. Pick-up plate; 10. Electric push rod; 11. Screw driver; 12. Laser marking device; 13. Control console; 14. Slot; 15. Cross slot; 16. Cylinder 1; 17. Cylinder 2; 18. Base plate; 19. Display screen. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings.

[0017] Combined with appendix Figure 1 Appendix Figure 2 A laser marking feeding device includes: a worktable 1 with a table plate 2 fixedly mounted on top; a feeding screw 3 rotatably connected to the table plate 2 and arranged in parallel with several screws, driven by a motor 4 fixed on the table plate 2, with ball nuts 5 threadedly connected to the motor 4; the table plate 2 has grooves 14 corresponding to the feeding screws 3 one by one; the feeding screws 3 are embedded in the grooves 14, which can reduce wear caused by exposed screws and improve feeding stability.

[0018] Combined with appendix Figure 1 The ball nut 5 is fixedly provided with a positioning seat 6. The positioning seat 6 is integrally formed with guide strips on both sides. The inner wall of the groove 14 is provided with a guide groove that matches the guide strip. The guide strip and the guide groove can guide the positioning seat 6 to move smoothly along the direction of the feeding screw 3, prevent the positioning seat 6 from deviating or tilting, and ensure the conveying accuracy of the feeding tray 7.

[0019] Combined with appendix Figure 1 Appendix Figure 2 The positioning seat 6 is detachably equipped with a feeding tray 7. The center of the feeding tray 7 is embedded with a pressure sensor 8 that is electrically connected to the corresponding motor 4. The center of the positioning seat 6 is provided with a cross groove 15. The bottom surface of the feeding tray 7 is provided with a cross protrusion that can be tightly inserted into the cross groove 15. This not only enables the feeding tray 7 to be quickly detached and installed, but also ensures accurate positioning after installation and facilitates the replacement of trays of different specifications.

[0020] Combined with appendix Figure 2 Appendix Figure 3 Appendix Figure 4The material picking plate 9 is located above the platform 2 at the end of the feeding screw 3 and is driven to rise and fall by an electric push rod 10. The electric push rod 10 is driven by a screw driver 11 fixed on the platform 2 to move along the feeding direction of the feeding screw 3. The material picking plate 9 is set across each feeding screw 3. The edge of the platform 2 near the end of the feeding screw 3 is inclined, and the width of the inclined surface is greater than the width of the material picking plate 9. It can simultaneously push materials on multiple sets of feeding trays 7. The inclined surface design at the end of the platform 2 expands the picking space and can also guide the materials, improving the picking efficiency.

[0021] Combined with appendix Figure 1 Appendix Figure 2 Appendix Figure 4 The laser marking device 12 is positioned above the platform 2, facing downwards, and is driven by a multi-axis drive mechanism. A control console 13, which controls the multi-axis drive mechanism and the motor 4, is fixedly mounted on the platform 2. The multi-axis drive mechanism includes an electric telescopic rod, a first cylinder 16, and a second cylinder 17. The electric telescopic rod is embedded in the platform 2, and its end is fixed to a base plate 18 that is driven to move left and right. The first cylinder 16 is fixed to the base plate 18, and the second cylinder 17 is fixed to the driving end of the first cylinder 16, driving it to move back and forth. The laser marking device 12 is fixed to the driving end of the second cylinder 17, driving it to move up and down. This allows the laser marking device 12 to move in multiple directions (left, right, forward, backward, up, and down), flexibly adapting to the marking needs of materials in different positions and of different specifications, thus improving marking flexibility.

[0022] Combined with appendix Figure 1 Appendix Figure 3 The front wall of the workbench 1 is fixedly equipped with a display screen 19 that displays the status of the feeding screw 3 and the working status of the laser marking device 12. The display screen 19 can display the working status of the feeding screw 3 and the laser marking device 12 in real time, so that the operator can grasp and manage the equipment operation in a timely manner, and can quickly deal with any abnormalities, reducing the time for troubleshooting.

[0023] Specific implementation of the present invention: The device is connected to an external power supply. Before use, the operator sets the feeding speed, marking position, and multi-axis drive mechanism parameters via the control console 13. The display screen 19 displays the initial status of the equipment in real time. According to the workpiece specifications, the matching feeding tray 7 is inserted into the cross slot 15 of the positioning seat 6 through the cross protrusion, and the electrical connection between the pressure sensor 8 and the motor 4 is completed.

[0024] After starting the equipment, the material to be marked is placed on the corresponding feeding tray 7. The pressure sensor 8 receives the pressure signal and controls the motor 4 to work. The motor 4 drives multiple feeding screws 3 to rotate synchronously. The ball nut 5 drives the positioning seat 6 to move smoothly along the guide groove in the groove 14, and multiple stations feed simultaneously. When the feeding tray 7 reaches the marking area, the laser marking machine 12, under the linkage of the electric telescopic rod, cylinder 16 and cylinder 2 17, completes the precise adjustment of the left-right, front-back, and up-down positions to laser mark the workpiece.

[0025] After marking, the material is continuously conveyed to the end by the feeding screw 3 and then stops. After all the material on each feeding screw 3 has been conveyed to the end, the electric push rod 10 is controlled to move the picking plate 9 upward above each material. The screw driver 11 drives the electric push rod 10 until the picking plate 9 is moved from the material discharge side to the other side. The picking plate 9 is lowered by the electric push rod 10. The screw driver 11 drives the picking plate 9 to move in the opposite direction through the electric push rod 10, pushing the material towards the discharge end until the material falls along the inclined surface at the end of the platform 2. After the pressure sensor senses the material removal signal, it controls the motor to drive the feeding screw 3 to work in the opposite direction and reset the positioning seat 6. The status can be monitored throughout the process through the display screen 19, and the machine can be stopped in time if any abnormality occurs.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; those skilled in the art can understand the specific meaning of the above term in this invention according to the specific circumstances.

[0027] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A laser marking feeding device, characterized in that, include: A workbench (1) with a fixed tabletop (2) on top; A feeding screw (3) is rotatably connected to the platform (2) and several are arranged in parallel. It is driven by a motor (4) fixed on the platform (2). A ball nut (5) is threaded on the screw. A positioning seat (6) is fixed on the ball nut (5). A feeding tray (7) is detachably provided on the positioning seat (6). A pressure sensor (8) electrically connected to the corresponding motor (4) is embedded in the center of the feeding tray (7). The material pick-up plate (9) is located above the platform (2) at the end of the feeding screw (3) and is driven to rise and fall by an electric push rod (10). The electric push rod (10) is driven by a screw driver (11) fixed on the platform (2) to move along the feeding direction of the feeding screw (3). The laser marking device (12) is located above the platform (2) and faces downward. It is driven by a multi-axis drive mechanism. The platform (2) is fixed with a control console (13) that controls the multi-axis drive mechanism and the motor (4).

2. The laser marking feeding device according to claim 1, characterized in that: The platform (2) is provided with a groove (14) corresponding to the feeding screw (3), and the feeding screw (2) is embedded in the groove (14).

3. The laser marking feeding device according to claim 2, characterized in that: The positioning seat (6) is integrally formed with guide strips on both sides, and the inner wall of the groove (14) is provided with a guide groove matching the guide strips.

4. The laser marking feeding device according to claim 1, characterized in that: The positioning seat (6) has a cross groove (15) at its center, and the bottom surface of the feeding tray (7) has a cross protrusion that can be tightly inserted into the cross groove (15).

5. The laser marking feeding device according to claim 1, characterized in that: The material taking plate (9) is set across each feeding screw (3), and the edge of the platform (2) near the end of the feeding screw (3) is inclined, and the width of the inclined surface is greater than the width of the material taking plate (9).

6. The laser marking feeding device according to claim 1, characterized in that: The multi-axis drive mechanism includes an electric telescopic rod, cylinder one (16) and cylinder two (17). The electric telescopic rod is embedded in the platform (2) and its end is fixedly provided with a base plate (18) that is driven to move left and right. Cylinder one (16) is fixedly provided on the base plate (18). Cylinder two (17) is fixedly provided on the driving end of cylinder one (16) and is driven to move back and forth by cylinder one (16). The laser marking device (12) is fixedly provided on the driving end of cylinder two (17) and is driven to move up and down by cylinder two (17).

7. The laser marking feeding device according to claim 1, characterized in that: The front wall of the workbench (1) is fixedly equipped with a display screen (19) that displays the status of the feed screw (3) and the working status of the laser marking device (12).

Images