Automatic laser engraving equipment for rubber tire

Abstract

The automatic laser engraving equipment comprises a tire conveying mechanism, L-shaped fixed supporting plates are arranged on the two longitudinal sides of the tire conveying mechanism, a fixed mounting frame is arranged between the tops of the L-shaped fixed supporting plates, and a laser engraving assembly is slidably connected between the two transverse ends of the top of the fixed supporting frame in the longitudinal direction; an overturning assembly is arranged on one longitudinal side of the laser engraving assembly and is in sliding connection with the top of the fixed mounting frame in the longitudinal direction. The device has the beneficial effects that the device is reasonable in design, stable and firm in overall structure and high in practicability; the rubber tire laser engraving device is simple in structure, convenient to use, capable of achieving double-face laser engraving of the rubber tire and improving the rubber tire production and machining efficiency, capable of positioning and clamping the rubber tire so as to guarantee the position stability of the rubber tire in the laser engraving machining process and improve the effect and precision of laser engraving machining of the rubber tire, and suitable for application and popularization.

Description

Technical Field

[0001] This invention relates to the field of laser engraving technology for tires, specifically to an automated laser engraving device for rubber tires. Background Technology

[0002] Rubber tires are ring-shaped, elastic rubber products that are fitted onto various vehicles or machinery and roll on the ground. They are typically mounted on metal rims. Their main functions include supporting the vehicle body, cushioning external impacts, and ensuring contact with the road surface to guarantee vehicle performance. After production, rubber tires undergo a process of engraving characters and patterns on both sides to display important information and characteristics, including brand, model, size, rated load capacity, and maximum speed.

[0003] Chinese patent CN119077142A discloses a tire laser marking and engraving device and its usage method. This device uses a light source assembly and a camera to determine the tire's outline coordinates and marking position. Then, an industrial robot drives a marking laser to mark specified characters, numbers, or patterns. However, the laser marking and engraving device in this patent generates vibrations of varying degrees during actual operation. Since the tire lacks effective positioning and clamping mechanisms, this causes a displacement deviation between the actual tire position and the position captured by the camera, affecting the accuracy of the laser marking and engraving. Furthermore, the device can only mark and engrave on one side of the tire; the other side requires manual rotation, reloading, conveying, and positioning before marking and engraving can begin. This not only increases manual labor intensity but also reduces the overall efficiency of tire production and processing, requiring further development and improvement. Summary of the Invention

[0004] The purpose of this invention is to provide an automated laser engraving device for rubber tires, which addresses the problems of existing laser engraving equipment for rubber tires being inconvenient for engraving characters and patterns on both sides of the rubber tire, and the tendency for the actual position of the rubber tire monitored by the equipment to deviate during the engraving process.

[0005] The present invention achieves the above-mentioned objective through the following technical solution: an automated laser engraving device for rubber tires, comprising a tire conveying mechanism, wherein L-shaped fixed support plates are provided on both longitudinal sides of the tire conveying mechanism, a fixed mounting frame is provided between the top of the L-shaped fixed support plates, a laser engraving component is slidably connected longitudinally between the two transverse ends of the top of the fixed mounting frame, a flipping component is provided on one longitudinal side of the laser engraving component, the flipping component is slidably connected longitudinally to the top of the fixed mounting frame, a positioning clamping component is provided between the L-shaped fixed support plates on the inner side of the fixed mounting frame, and a control device is provided on the outer surface of the L-shaped fixed support plate on one longitudinal side of the tire conveying mechanism.

[0006] Furthermore, a through-beam photoelectric sensor is provided on one side of the fixed mounting bracket that is laterally close to the feed end of the tire conveying mechanism, and a U-shaped support mounting plate is provided on the other side. A CCD vision camera is installed at the bottom of the U-shaped support mounting plate to monitor the state of the rubber tire before it is conveyed to the pre-processing position and to detect the surface characters and patterns of the rubber tire after it is engraved.

[0007] Furthermore, the laser engraving assembly includes a first movable support plate and a U-shaped sliding mounting plate. The bottom ends of the first movable support plate are slidably connected longitudinally to the top two ends of the fixed mounting frame. The top inner surface of the U-shaped sliding mounting plate is slidably connected laterally to the top of the first movable support plate, and the bottom inner surface of the U-shaped sliding mounting plate is slidably connected laterally to the bottom of the first movable support plate. A five-axis linkage robotic arm is provided at the bottom of the U-shaped sliding mounting plate, and a laser engraving head is mounted on the five-axis linkage robotic arm. By combining the longitudinal sliding of the first movable support plate with the lateral sliding of the U-shaped sliding mounting plate, the overall lateral and longitudinal positions of the five-axis linkage robotic arm and the laser engraving head can be flexibly adjusted. The five-axis linkage robotic arm provides multi-dimensional and highly flexible degrees of freedom of movement, which can drive the laser engraving head to achieve complex spatial motion trajectories. It works in conjunction with the laser engraving head to accurately perform engraving operations, effectively improving engraving accuracy and quality, and enhancing the versatility of the equipment.

[0008] Furthermore, the flipping assembly includes a second movable support plate. The bottom two ends of the second movable support plate are slidably connected longitudinally to the top two transverse ends of the fixed mounting frame. A lifting device is provided on the top of the second movable support plate. The bottom output end of the lifting device extends to below the second movable support plate and is fitted with a lifting support mounting plate. Guide rods are provided at both transverse ends of the top of the lifting support mounting plate, and these guide rods are plugged into the second movable support plate. A U-shaped fixed mounting plate is provided at the bottom of the lifting support mounting plate, and a laser scanner is mounted on the bottom of the U-shaped fixed mounting plate. A transmission screw is provided on the inner side of the U-shaped fixed mounting plate, and support rotation seats are provided at both ends of the transmission screw. The top of the rotating support is connected to the bottom of the lifting support mounting plate. A first rotary motor is installed on the outside of the rotating support at one end of the transmission screw. The first rotary motor is installed on the bottom of the lifting support mounting plate, and its output end is connected to one end of the transmission screw. Ball bearing nut seats are installed between the transmission screw and the U-shaped fixed mounting plate and the rotating support. The top of the ball bearing nut seat is slidably connected to the bottom of the lifting support mounting plate in the lateral direction. A support mounting plate is installed at the bottom of the ball bearing nut seat, and a rotating shaft is installed at one end of the bottom of the support mounting plate. A second rotary motor is installed on the outer surface of the support mounting plate on the lateral side of the laser scanner. The output end of the second rotary motor is connected to the... A rotating shaft is connected at one end, and an arc-shaped rotating support mounting plate is provided at the other end of the rotating shaft. An arc-shaped clamping plate is provided on the side of the arc-shaped rotating support mounting plate away from the rotating shaft. A pressure sensor is provided on the surface of the arc-shaped rotating support mounting plate near the arc-shaped clamping plate. Support plug rods are provided at both ends of the arc-shaped clamping plate. One end of the support plug rod passes through the arc-shaped rotating support mounting plate and is fitted with a limit block. One side surface of the pressure sensor is fixedly connected to the arc-shaped rotating support mounting plate, and the other force-bearing surface is in contact with the arc-shaped clamping plate. A levelness sensor is provided on the arc-shaped rotating support mounting plate. A rubber anti-slip layer is provided on the surface of the arc-shaped clamping plate away from the pressure sensor. A limiting plug-in block is provided at the top of one axial end of the support mounting plate. The limiting plug-in block is plugged into the support mounting plate. The support mounting plate is provided with a telescopic device above the second rotary motor. The output end of the telescopic device is connected to one end of the limiting plug-in block to realize the automatic rotation operation of the rubber tire. It can be applied to rubber tires of different sizes and specifications. At the same time, it can monitor and control the clamping force during the rubber tire rotation operation to avoid the tire being unable to be held due to insufficient clamping force, or the tire being deformed due to excessive clamping force. It can also monitor and control the radial direction of the arc-shaped rotating support mounting plate and the arc-shaped clamping plate to ensure that the arc-shaped clamping plate is in the same radial direction as the rubber tire before clamping it, thereby improving the rotation accuracy and effect. In addition,Before laser engraving, a laser scanner can be used to scan and position the rubber tire to be laser engraved, thus determining the specific location for the engraving.

[0009] Furthermore, the positioning and clamping assembly includes a fixed mounting plate disposed below the tire conveying mechanism. The fixed mounting plate has its longitudinal ends connected to the inner surfaces of the L-shaped fixed support plates on both longitudinal sides of the tire conveying mechanism. Two lower support rotating seats are symmetrically arranged on the top of the fixed mounting plate on both longitudinal sides of the tire conveying mechanism. Upper support rotating seats are arranged on the top of the L-shaped fixed support plates corresponding to the positions of the lower support rotating seats. Two parallel support rotating shafts are arranged horizontally and vertically between the upper and lower support rotating seats. A fixed support connecting plate is disposed between the longitudinal ends of the upper and lower support rotating seats. A first transmission gear is disposed below the upper support rotating seat on each support rotating shaft. A rotating positioning frame is disposed above the upper support rotating seat on each support rotating shaft. A positioning roller is vertically disposed at one end of the rotating positioning frame. The two first transmission gears at the longitudinal end of the fixed mounting plate mesh with each other. A rotating mounting shaft is located in the middle of the plate. A third rotary motor is located at the bottom of the fixed mounting plate. The top output end of the third rotary motor is connected to one end of the bottom of the rotating mounting shaft. A second transmission gear is installed at the top end of the rotating mounting shaft. Sliding mounting plates are slidably connected longitudinally on both sides of the top of the fixed mounting plate located laterally to the second transmission gear. A first transmission rack is installed on the top of the sliding mounting plate on one side of the second transmission gear, and a second transmission rack is installed on the top of the sliding mounting plate on the other side. Both the first and second transmission racks mesh with the second transmission gear. The first transmission gear on one longitudinal side of the second transmission gear meshes with the first transmission rack, and the first transmission gear on the other longitudinal side meshes with the second transmission rack. The fixed support connecting plate has cutouts corresponding to the sliding mounting plate positions to achieve positioning and clamping operations for the rubber tire, ensuring the stability of the rubber tire's position during laser engraving.

[0010] Furthermore, the ball nut seat includes a sliding mounting seat, on the inner side of which a ball nut is provided. The ball nut is mounted on the transmission screw. The top of the sliding mounting seat is slidably connected to the bottom of the lifting support mounting plate in the lateral direction. The support mounting plate is mounted on the bottom of the sliding mounting seat, providing precise lateral position adjustment power for the support mounting plate and subsequent clamping components, avoiding jamming or offset during adjustment, and improving the reliability of the rubber tire clamping action.

[0011] Furthermore, linear transmission mechanisms are provided between the first movable support plate and the fixed mounting frame, between the U-shaped sliding mounting plate and the first movable support plate, and between the second movable support plate and the fixed mounting frame. The linear transmission mechanism is a transmission structure in which a drive motor is equipped with a gear and a rack meshing, so as to enable the first movable support plate and the second movable support plate to move linearly in the longitudinal direction, and to enable the U-shaped sliding mounting plate to move linearly in the transverse direction, so as to ensure that the position of each component is accurate and the movement is smooth when moving in the longitudinal or transverse direction, and to reduce adjustment errors.

[0012] Furthermore, the tire conveying mechanism is connected to the L-shaped fixed support plate, the L-shaped fixed support plate is connected to the fixed mounting frame, and the fixed mounting plate is connected to the L-shaped fixed support plate by welding, so as to ensure the stability and firmness of the connection structure and improve the service life and safety of use.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention is reasonably designed, with a stable and robust overall structure and strong practicality. It can not only realize laser engraving on both sides of rubber tires, improving the efficiency of rubber tire production and processing, but also position and clamp the rubber tires to ensure the stability of their position during the laser engraving process, thereby improving the effect and accuracy of the laser engraving process. 2. Specifically, in the laser engraving assembly, the first movable support plate can slide longitudinally and the U-shaped sliding mounting plate can slide laterally, thereby enabling the five-axis linkage robotic arm and the laser engraving head to move laterally and longitudinally, providing a foundation for engraving covering different areas of the tire's lateral and longitudinal directions; the five-axis linkage robotic arm provides multi-dimensional and highly flexible degrees of freedom of movement, enabling the laser engraving head to complete complex spatial motion trajectories, while the laser engraving head performs specific engraving tasks; through the combination of longitudinal and lateral movement and multi-dimensional motion, it can not only fully cover all areas of the tire and adapt to the complex shape of the tire, ensuring engraving accuracy, but also meet the engraving needs of tires of different specifications; 3. Specifically, the flipping assembly uses a screw drive to move two support mounting plates closer together or further apart, achieving synchronous opening and closing of the two arc-shaped clamping plates. This allows for clamping operations on rubber tires of different sizes and specifications. After the arc-shaped clamping plates clamp the rubber tire, the lifting device raises the lifting support mounting plate, and the clamped rubber tire follows. Then, the second rotary motor, in conjunction with the rotating shaft, rotates the arc-shaped rotary support mounting plate 180 degrees, thus achieving automatic flipping of the rubber tire. The arc-shaped rotary support mounting plate, arc-shaped clamping plates, pressure sensor, support connector, and limit block work together to monitor the operation of the tire. The clamping force of the rubber tire is designed to prevent it from falling due to insufficient clamping force or deforming due to excessive clamping force, thus improving the tire's flipping effect. Simultaneously, through the coordinated use of pressure sensors, limit plugs, and telescopic devices, the radial direction of the arc-shaped rotating support mounting plate and the arc-shaped clamping plate can be monitored and controlled to ensure that the arc-shaped clamping plate maintains the same radial direction as the rubber tire before clamping it, further improving the tire's flipping effect. Furthermore, before laser engraving, a laser scanner can scan the positioned and clamped rubber tire to obtain its coordinate position and contour information, facilitating the determination of the area for laser engraving.

[0014] 4. Specifically, the positioning and clamping assembly provides a stable support base through a fixed mounting plate. The third rotary motor drives the second transmission gear, which meshes with the first and second transmission racks, causing the sliding mounting plate to slide. This, in turn, drives the first transmission gear to rotate the support rotation shaft, enabling the positioning rollers on both sides of the rotating positioning frame to move synchronously in opposite directions. Therefore, all four positioning rollers are driven synchronously by the third rotary motor, which avoids inconsistent movement between the positioning rollers and thus prevents them from affecting the positioning and clamping effect on the rubber tire. It is also suitable for positioning and clamping rubber tires of different sizes and specifications, ensuring the stability of the rubber tire's position during laser engraving and improving the laser engraving effect on the rubber tire. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention; Figure 3 This is a three-dimensional structural diagram of the laser engraving component in this invention; Figure 4 This is a three-dimensional structural diagram of the flipping component in this invention; Figure 5 This is the main view of the flip component in this invention; Figure 6 This is a bottom view of the flipping component in this invention; Figure 7 for Figure 6 Enlarged view of section A; Figure 8 This is a three-dimensional structural diagram of the positioning and clamping component in this invention.

[0016] In the diagram: 1-Tire conveying mechanism, 2-L-shaped fixed support plate, 3-Fixed mounting bracket, 4-Laser engraving assembly, 5-Flipping assembly, 6-Positioning clamping assembly, 7-Control device, 8-Through-beam photoelectric sensor, 9-U-shaped support mounting plate, 10-CCD vision camera, 11-Linear transmission mechanism; 401-First movable support plate, 402-U-shaped sliding mounting plate, 403-Five-axis linkage robotic arm, 404-Laser engraving head; 501-Second movable support plate, 502-Lifting device, 503-Lifting support mounting plate, 504-Guide plug rod, 505-U-shaped fixed mounting plate, 506-Laser scanner, 507-Transmission screw, 508-Support rotating seat, 509-First rotary motor, 510-Ball nut seat, 511-Support mounting plate, 512-Second rotary motor, 513-Arc-shaped rotary support mounting plate, 514-Arc-shaped clamping plate, 515-Pressure sensor, 516-Support plug rod, 517-Limit block, 518-Limit plug block, 519-Telescopic device; 601-Fixed mounting plate, 602-Lower support rotating seat, 603-Upper support rotating seat, 604-Support rotating shaft, 605-Fixed support connecting plate, 606-First transmission gear, 607-Rotating positioning frame, 608-Positioning roller, 609-Third rotating motor, 610-Second transmission gear, 611-Sliding mounting plate, 612-First transmission rack, 613-Second transmission rack. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] Combination Figures 1 to 2 The illustrated automated laser engraving equipment for rubber tires includes a tire conveying mechanism 1. L-shaped fixed support plates 2 are provided on both longitudinal sides of the tire conveying mechanism 1. A fixed mounting frame 3 is provided between the tops of the L-shaped fixed support plates 2. A laser engraving component 4 is slidably connected longitudinally between the two transverse ends of the top of the fixed mounting frame 3. A flipping component 5 is provided on one longitudinal side of the laser engraving component 4. The flipping component 5 is slidably connected longitudinally to the top of the fixed mounting frame 3. A positioning clamping component 6 is provided between the L-shaped fixed support plates 2 inside the fixed mounting frame 3. A control device 7 is provided on the outer surface of the L-shaped fixed support plate 2 on one longitudinal side of the tire conveying mechanism 1.

[0020] A through-beam photoelectric sensor 8 is provided on the side surface of the fixed mounting frame 3 that is laterally close to the feed end of the tire conveying mechanism 1 to monitor whether a tire has passed through the conveyed to the predetermined processing position below the fixed mounting frame 3; a U-shaped support mounting plate 9 is provided on the other side surface, and a CCD vision camera 10 is installed at the bottom of the U-shaped support mounting plate 9 to detect the characters and patterns on the surface of the tire after engraving.

[0021] like Figure 3As shown, the laser engraving assembly 4 includes a first movable support plate 401 and a U-shaped sliding mounting plate 402. The bottom ends of the first movable support plate 401 are slidably connected longitudinally to the top horizontal ends of the fixed mounting frame 3. The inner surface of the top of the U-shaped sliding mounting plate 402 is slidably connected laterally to the top of the first movable support plate 401, and the inner surface of the bottom of the U-shaped sliding mounting plate 402 is slidably connected laterally to the bottom of the first movable support plate 401. A five-axis linkage robotic arm 403 is mounted at the bottom of the U-shaped sliding mounting plate 402, and a laser engraving head 404 is mounted on the five-axis linkage robotic arm 403. The U-shaped sliding mounting plate 402 can slide longitudinally and laterally, thereby enabling the five-axis linkage robotic arm 403 and laser engraving head 404 mounted at the bottom of the U-shaped sliding mounting plate 402 to move laterally or longitudinally, providing a basis for engraving covering different areas of the tire in both the lateral and longitudinal directions. The five-axis linkage robotic arm 403 at the bottom of the U-shaped sliding mounting plate 402 provides multi-dimensional and highly flexible degrees of freedom of movement, enabling the laser engraving head 404 to achieve complex spatial motion trajectories. The laser engraving head 404 mounted on the five-axis linkage robotic arm 403 is the component used to perform laser engraving operations.

[0022] like Figures 4 to 7As shown, the flipping assembly 5 includes a second movable support plate 501. The bottom ends of the second movable support plate 501 are slidably connected longitudinally to the top horizontal ends of the fixed mounting bracket 3, thereby adjusting the overall longitudinal position of the flipping assembly 5. A lifting device 502 is provided on the top of the second movable support plate 501. A lifting support mounting plate 503 is installed below the second movable support plate 501 at the bottom output end of the lifting device 502. Guide insertion rods 504 are provided on the top of the lifting support mounting plate 503 at both horizontal ends of the lifting device 502. The guide insertion rods 504 are connected to the second movable support plate 501. The support plate 501 is plugged in to enable the lifting support mounting plate 503 to rise and fall, while preventing horizontal rotation during the lifting process. The second movable support plate 501 is provided with a straight bushing corresponding to the guide plug rod 504 to ensure smooth lifting and falling of the lifting support mounting plate 503. A U-shaped fixed mounting plate 505 is provided at the bottom of the lifting support mounting plate 503, and a laser scanner 506 is installed at the bottom of the U-shaped fixed mounting plate 505 to scan the positioning and clamping rubber tire to determine its coordinate position and the area for laser engraving.A transmission screw 507 is provided on the inner side of the U-shaped fixed mounting plate 505. Support rotating seats 508 are provided at both ends of the transmission screw 507. Rotary bearings are provided between the support rotating seats 508 and the transmission screw 507. The top of the support rotating seats 508 is connected to the bottom of the lifting support mounting plate 503. A first rotary motor 509 is provided on the outer side of the support rotating seat 508 at one end of the transmission screw 507. The first rotary motor 509 is installed at the bottom of the lifting support mounting plate 503. The output end of the first rotary motor 509 is connected to one end of the transmission screw 507. Ball bearing nut seats 510 are installed between the transmission screw 507 and the U-shaped fixed mounting plate 505 and the support rotating seats 508. The top of the ball bearing nut seats 510 is connected to the lifting support... The bottom of the support mounting plate 503 is slidably connected laterally. A support mounting plate 511 is provided at the bottom of the ball nut seat 510. A rotating shaft is provided at one end of the bottom of each support mounting plate 511. A second rotary motor 512 is provided on the outer surface of the support mounting plate 511 on one side of the laser scanner 506. The output end of the second rotary motor 512 is connected to one end of the rotating shaft. An arc-shaped rotary support mounting plate 513 is provided at the other end of the rotating shaft. An arc-shaped clamping plate 514 is provided on the side of the arc-shaped rotary support mounting plate 513 away from the rotating shaft. A pressure sensor 515 is provided on the surface of the arc-shaped rotary support mounting plate 513 near the arc-shaped clamping plate 514. Support insertion rods 516 are provided at both ends of the arc-shaped clamping plate 514. A limit block 517 is installed at one end of the arc-shaped rotary support mounting plate 513. A straight bushing is provided between the arc-shaped rotary support mounting plate 513 and the support plug rod 516. One side surface of the pressure sensor 515 is fixedly connected to the arc-shaped rotary support mounting plate 513, and the other side force-bearing surface is in contact with the arc-shaped clamping plate 514. A level sensor is provided on the arc-shaped rotary support mounting plate 513. The surface of the arc-shaped clamping plate 514 away from the pressure sensor 515 is provided with a rubber anti-slip layer. A limit plug block 518 is provided at the top of one axial end of the arc-shaped rotary support mounting plate 513. The limit plug block 518 is plugged into the support mounting plate 511. The support mounting plate 511 is located on the second rotary motor 512. The device is equipped with a telescopic device 519, the output end of which is connected to one end of a limit plug 518. One end of the limit plug 518 is chamfered. The two support mounting plates 511 are driven to move closer or further apart through a screw drive, so as to realize the synchronous opening and closing of the two arc-shaped clamping plates 514. This device is suitable for clamping rubber tires of different sizes and specifications. After the arc-shaped clamping plates 514 clamp the rubber tire, the lifting device 502 can be controlled to drive the lifting support mounting plate 503 to rise. After the clamped rubber tire rises, the second rotary motor 512 is controlled to drive the arc-shaped rotary support mounting plate 513 to rotate 180 degrees with the help of the rotating shaft, so as to realize the flipping of the rubber tire.The arc-shaped rotating support mounting plate 513, arc-shaped clamping plate 514, pressure sensor 515, support plug-in rod 516, and limiting block 517 work together to monitor the clamping force on the rubber tire, preventing insufficient clamping force from failing to hold the tire and excessive clamping force from causing tire deformation, thus improving the tire's flipping effect. Furthermore, the pressure sensor 515, limiting plug-in block 518, and telescopic device 519 work together to monitor and control the radial direction of the arc-shaped rotating support mounting plate 513 and arc-shaped clamping plate 514, ensuring that the arc-shaped clamping plate 514 maintains the same radial direction as the rubber tire before clamping it, further improving the tire's flipping effect. Before laser engraving, the laser scanner 506 scans the positioned and clamped rubber tire to obtain its coordinate position and contour information, facilitating the determination of the area for laser engraving.

[0023] like Figure 8As shown, the positioning and clamping assembly 6 includes a fixed mounting plate 601 disposed below the tire conveying mechanism 1. The two longitudinal ends of the fixed mounting plate 601 are connected to the inner surfaces of L-shaped fixed support plates 2 on both longitudinal sides of the tire conveying mechanism 1. Two lower support rotating seats 602 are symmetrically arranged on the top of the fixed mounting plate 601 on both longitudinal sides of the tire conveying mechanism 1. Upper support rotating seats 603 are provided on the top of the L-shaped fixed support plates 2 corresponding to the positions of the lower support rotating seats 602. Two parallel support rotating shafts 604 are arranged horizontally and vertically between the upper support rotating seats 603 and the lower support rotating seats 602. The upper support rotating seats 603 and the lower support rotating seats 602 are connected at one longitudinal end... A fixed support connecting plate 605 is provided. A first transmission gear 606 is provided below the upper support rotating seat 603, and a rotation positioning frame 607 is provided above the upper support rotating seat 603. A positioning roller 608 is vertically provided at one end of the rotation positioning frame 607. Two first transmission gears 606 are meshed at one longitudinal end of the fixed mounting plate 601. A rotation mounting shaft is provided in the middle of the fixed mounting plate 601. A third rotation motor 609 is provided at the bottom of the fixed mounting plate 601. The top output end of the third rotation motor 609 is connected to one end of the bottom of the rotation mounting shaft. A second transmission gear is installed at the top end of the rotation mounting shaft. 610. A fixed mounting plate 601 has sliding mounting plates 611 slidably connected longitudinally to both sides of the second transmission gear 610 on its top. A first transmission rack 612 is mounted on the top of the sliding mounting plate 611 on one side of the second transmission gear 610, and a second transmission rack 613 is mounted on the top of the sliding mounting plate 611 on the other side. Both the first and second transmission racks 612 and 613 mesh with the second transmission gear 610. A first transmission gear 606 on one longitudinal side of the second transmission gear 610 meshes with the first transmission rack 612, and a first transmission gear 606 on the other longitudinal side meshes with the second transmission rack 613. A fixed support connecting plate 605 corresponds to the sliding... The movable mounting plate 611 has a cutout at each position, and the fixed mounting plate 601 provides a stable support base. The third rotary motor 609 drives the second transmission gear 610, which meshes with the first transmission rack 612 and the second transmission rack 613 to drive the sliding mounting plate 611 to slide. This, in turn, drives the first transmission gear 606 to rotate the support rotation shaft 604, so that the positioning rollers 608 on both sides of the rotating positioning frame 607 can open and close synchronously in opposite directions. This enables the positioning and clamping operation of the rubber tire, ensuring the stability of the rubber tire's position during laser engraving and improving the engraving accuracy. In addition, the cutout of the fixed support connecting plate 605 provides movement space for the sliding mounting plate.

[0024] The ball nut seat 510 includes a sliding mounting seat with a ball nut inside. The ball nut is mounted on the transmission screw 507. The top of the sliding mounting seat is slidably connected to the bottom of the lifting support mounting plate 503 in a lateral direction. The support mounting plate 511 is mounted on the bottom of the sliding mounting seat, providing precise lateral position adjustment power for the support mounting plate 511 and subsequent clamping components, avoiding jamming or offset during adjustment, and improving the reliability of the rubber tire clamping action. The first movable support plate 401 is connected to the fixed mounting frame 3, the U-shaped sliding mounting plate 402 is connected to the first movable support plate 401, and the second movable support... Linear transmission mechanisms 11 are provided between plate 501 and fixed mounting bracket 3. The linear transmission mechanism 11 is a transmission structure with a drive motor and a gear and rack meshing, used to enable the first movable support plate 401 and the second movable support plate 501 to move linearly in the longitudinal direction, and to enable the U-shaped sliding mounting plate 402 to move linearly in the transverse direction. The gear and rack meshing transmission provides high precision and fast response, ensuring accurate positioning and smooth operation of each component during longitudinal or transverse movement, reducing adjustment errors. The tire conveying mechanism 1 is connected to the L-shaped fixed support plate 2, the L-shaped fixed support plate 2 is connected to the fixed mounting bracket 3, and the fixed mounting bracket 3 is connected to the L-shaped fixed support plate 2. The mounting plate 601 and the L-shaped fixed support plate 2 are connected by welding to ensure the stability and firmness of the connection structure, improve service life and safety. In addition, the tire conveying mechanism 1 includes a drive motor, a through-beam photoelectric sensor 8, a CCD vision camera 10, a drive motor in the linear transmission mechanism 11, a drive motor in the five-axis linkage robotic arm 403, a laser engraving head 404, a lifting device 502, a laser scanner 506, a first rotary motor 509, a second rotary motor 512, a pressure sensor 515, a level sensor, a telescopic device 519, and a third rotary motor 609. All are electrically connected to the control device 7 to receive data transmitted from the through-beam photoelectric sensor 8, CCD vision camera 10, laser scanner 506, pressure sensor 515 and level sensor, and to control the working status of the drive motor in the tire conveying mechanism 1, the drive motor in the linear transmission mechanism 11, the drive motor in the five-axis linkage robotic arm 403, the laser engraving head 404, the lifting device 502, the first rotary motor 509, the second rotary motor 512, the telescopic device 519 and the third rotary motor 609, wherein the lifting device 502 is a hydraulic cylinder or a servo electric cylinder, and the telescopic device 519 is a pneumatic cylinder.

[0025] Working principle: The initial positions of each component are as follows: the laser engraving component and the flipping component are respectively located at the two ends of the longitudinal direction of the fixed mounting frame, the positioning rollers in the positioning clamping component are in a state of being far apart and open, the support mounting plate is also in a state of being far apart, and the telescopic device drives the limit plug block forward so that the bottom of the limit plug block contacts the top of one axial end of the arc-shaped rotating support mounting plate. The rubber tire to be laser engraved is transported by a tire conveying mechanism. When the through-beam photoelectric sensor detects the passing of the rubber tire, the control device stops the tire conveying mechanism when the rubber tire reaches the predetermined processing position below the fixed mounting frame, based on the conveying speed of the tire conveying mechanism. Subsequently, the positioning and clamping assembly is activated, and the third rotary motor drives the second transmission gear. Through the structure that meshes with the first and second transmission racks, the sliding mounting plate is driven to slide, which in turn drives the first transmission gear to rotate the support rotation shaft. This enables the positioning rollers on both sides of the rotating positioning frame to move synchronously towards each other, thus firmly clamping the rubber tire and ensuring stable positioning during engraving. Next, with the help of the linear transmission mechanism, the entire flipping assembly is moved to above the rubber tire. The laser scanner inside scans the positioned rubber tire to obtain its coordinate position and contour information, which is then transmitted to the control device. The control device plans the laser engraving path accordingly. Subsequently, the flipping assembly returns to its initial position at one end of the fixed mounting frame. The laser engraving assembly begins to work. Driven by the linear transmission mechanism, the first moving support plate slides longitudinally and the U-shaped sliding mounting plate slides laterally. In conjunction with the multi-dimensional movement of the five-axis linkage robotic arm, the laser engraving head precisely engraves one side of the rubber tire. After one side of the rubber tire is engraved, the positioning and clamping assembly releases the rubber tire. A linear transmission mechanism moves the flipping assembly directly above the rubber tire. A lifting device lowers the arc-shaped clamping plate to one side of the rubber tire. Then, a transmission screw, driven by the first rotary motor, moves the ball nut seat, bringing the arc-shaped clamping plate closer to and clamping the rubber tire. A pressure sensor monitors the clamping force in real time to prevent it from being too loose or too tight. Next, the lifting device raises the rubber tire to a designated height. The telescopic device then moves the limit plug backward, disengaging it from the top of the arc-shaped rotating support mounting plate. Finally, the second rotary motor drives the arc-shaped clamping plate... The curved rotating support mounting plate rotates 180 degrees to flip the rubber tire. Then, the telescopic device drives the limit plug block forward to contact the top of the curved rotating support mounting plate. Next, the lifting device drives the rubber tire down to contact the top of the tire conveying mechanism. Then, the first rotary motor drives the transmission screw to rotate in the opposite direction, so that the curved clamping plate moves away from the rubber tire. At the same time, the lifting device drives the curved clamping plate up. Then, the positioning clamping component once again positions and clamps the rubber tire. Meanwhile, the laser scanner scans the un-engraved side of the rubber tire after positioning and clamping to obtain relevant data information for engraving processing. Driven by the linear transmission mechanism, the flipping component moves to one longitudinal end of the fixed support frame. Driven by the linear transmission mechanism, the first moving support plate slides longitudinally and the U-shaped sliding mounting plate slides laterally. In conjunction with the multi-dimensional movement of the five-axis linkage robotic arm, the laser engraving head is driven to perform precise engraving on the other side of the rubber tire, thus completing the double-sided engraving operation of the rubber tire.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automated laser engraving device for rubber tires, comprising a tire conveying mechanism (1), characterized in that: The tire conveying mechanism (1) is provided with L-shaped fixed support plates (2) on both longitudinal sides. A fixed mounting frame (3) is provided between the top of the L-shaped fixed support plates (2). A laser engraving component (4) is slidably connected between the two transverse ends of the top of the fixed mounting frame (3) along the longitudinal direction. A flipping component (5) is provided on one longitudinal side of the laser engraving component (4). The flipping component (5) is slidably connected to the top of the fixed mounting frame (3) along the longitudinal direction. A positioning clamping component (6) is provided between the L-shaped fixed support plates (2) on the inner side of the fixed mounting frame (3). A control device (7) is provided on the outer surface of the L-shaped fixed support plate (2) on one longitudinal side of the tire conveying mechanism (1).

2. The automated laser engraving equipment for rubber tires according to claim 1, characterized in that: The fixed mounting bracket (3) is laterally close to the feed end of the tire conveying mechanism (1) and is provided with a through-beam photoelectric sensor (8) on one side surface and a U-shaped support mounting plate (9) on the other side surface. A CCD vision camera (10) is installed at the bottom of the U-shaped support mounting plate (9).

3. The automated laser engraving equipment for rubber tires according to claim 1, characterized in that: The laser engraving assembly (4) includes a first movable support plate (401) and a U-shaped sliding mounting plate (402). The bottom ends of the first movable support plate (401) are slidably connected to the top two ends of the fixed mounting frame (3) in a longitudinal direction. The top inner surface of the U-shaped sliding mounting plate (402) is slidably connected to the top of the first movable support plate (401) in a transverse direction. The bottom inner surface of the U-shaped sliding mounting plate (402) is slidably connected to the bottom of the first movable support plate (401) in a transverse direction. A five-axis linkage robotic arm (403) is provided at the bottom of the U-shaped sliding mounting plate (402). A laser engraving head (404) is installed on the five-axis linkage robotic arm (403).

4. The automated laser engraving equipment for rubber tires according to claim 3, characterized in that: The flipping assembly (5) includes a second movable support plate (501). The bottom ends of the second movable support plate (501) are slidably connected longitudinally to the top horizontal ends of the fixed mounting bracket (3). A lifting device (502) is provided on the top of the second movable support plate (501). The bottom output end of the lifting device (502) extends to the bottom of the second movable support plate (501) and a lifting support mounting plate (503) is installed thereon. The top of the lifting support mounting plate (503) is provided with guide plug-in rods (504) at both horizontal ends of the lifting device (502). The guide plug-in rods (504) are plugged into the second movable support plate (501). The bottom of the lifting support mounting plate (503) is provided with... A U-shaped mounting plate (505) is provided, and a laser scanner (506) is mounted on the bottom of the U-shaped mounting plate (505). A transmission screw (507) is provided on the inner side of the U-shaped mounting plate (505), and a support rotating seat (508) is provided at both ends of the transmission screw (507). The top of the support rotating seat (508) is connected to the bottom of the lifting support mounting plate (503). A first rotary motor (509) is provided on the outer side of the support rotating seat (508) at one end of the transmission screw (507). The first rotary motor (509) is installed at the bottom of the lifting support mounting plate (503), and the output end of the first rotary motor (509) is connected to one end of the transmission screw (507). A ball bearing nut seat (510) is installed between the U-shaped fixed mounting plate (505) and the support rotating seat (508) of the transmission screw (507). The top of the ball bearing nut seat (510) is slidably connected to the bottom of the lifting support mounting plate (503) in the lateral direction. A support mounting plate (511) is provided at the bottom of the ball bearing nut seat (510). A rotating shaft is provided at one end of the bottom of the support mounting plate (511). A second rotary motor (512) is provided on the outer surface of the support mounting plate (511) on the lateral side of the laser scanner (506). The output end of the second rotary motor (512) is connected to one end of the rotating shaft. An arc-shaped rotating support mounting plate (513) is provided at the other end of the rotating shaft. An arc-shaped clamping plate (514) is provided on the side of the arc-shaped rotary support mounting plate (513) away from the rotation axis. A pressure sensor (515) is provided on the surface of the arc-shaped rotary support mounting plate (513) near the arc-shaped clamping plate (514). Support plug rods (516) are provided at both ends of the arc-shaped clamping plate (514). One end of the support plug rod (516) passes through the arc-shaped rotary support mounting plate (513) and a limit block (517) is installed. One side of the pressure sensor (515) is fixedly connected to the arc-shaped rotary support mounting plate (513), and the other side of the force-bearing surface is in contact with the arc-shaped clamping plate (514). A levelness sensor is provided on the arc-shaped rotary support mounting plate (513).The surface of the arc-shaped clamping plate (514) away from the pressure sensor (515) is provided with an anti-slip layer made of rubber. A limit plug (518) is provided at the top of one axial end of the arc-shaped rotary support mounting plate (513). The limit plug (518) is plugged into the support mounting plate (511). A telescopic device (519) is provided on the support mounting plate (511) above the second rotary motor (512). The output end of the telescopic device (519) is connected to one end of the limit plug (518).

5. The automated laser engraving equipment for rubber tires according to claim 4, characterized in that: The positioning clamping assembly (6) includes a fixed mounting plate (601) disposed below the tire conveying mechanism (1). The two longitudinal ends of the fixed mounting plate (601) are respectively connected to the inner surfaces of the L-shaped fixed support plates (2) on both longitudinal sides of the tire conveying mechanism (1). The top of the fixed mounting plate (601) is symmetrically provided with two lower support rotating seats (602) on both longitudinal sides of the tire conveying mechanism (1). The top of the L-shaped fixed support plate (2) is provided with an upper support rotating seat (603) corresponding to the position of the lower support rotating seat (602). The upper support rotating seat (603) and the lower support rotating seat (602) are connected to each other. Two parallel supporting rotating shafts (604) are arranged horizontally and vertically between the upper supporting rotating seat (603) and the lower supporting rotating seat (602). A fixed supporting connecting plate (605) is provided between the longitudinal ends of the upper supporting rotating seat (603) and the lower supporting rotating seat (602). A first transmission gear (606) is provided below the upper supporting rotating seat (603) on the supporting rotating shaft (604). A rotating positioning frame (607) is provided above the upper supporting rotating seat (603) on the supporting rotating shaft (604). A positioning roller (608) is vertically provided at one end of the rotating positioning frame (607). Two parallel supporting rotating shafts (604) are provided between the longitudinal ends of the fixed mounting plate (601) and the lower supporting rotating seat (602). The first transmission gear (606) meshes with the fixed mounting plate (601), a rotating mounting shaft is provided in the middle position of the fixed mounting plate (601), a third rotating motor (609) is provided at the bottom of the fixed mounting plate (601), the top output end of the third rotating motor (609) is connected to one end of the bottom of the rotating mounting shaft, a second transmission gear (610) is installed at one end of the top of the rotating mounting shaft, and sliding mounting plates (611) are slidably connected longitudinally on both sides of the second transmission gear (610) on the top of the fixed mounting plate (601). The sliding mounting plate (611) on the other side is equipped with a first transmission rack (612), and the top of the sliding mounting plate (611) on the other side is equipped with a second transmission rack (613). Both the first transmission rack (612) and the second transmission rack (613) mesh with the second transmission gear (610). The first transmission gear (606) on one longitudinal side of the second transmission gear (610) meshes with the first transmission rack (612), and the first transmission gear (606) on the other side meshes with the second transmission rack (613). The fixed support connecting plate (605) has a hollow opening at the position corresponding to the sliding mounting plate (611).

6. The automated laser engraving equipment for rubber tires according to claim 5, characterized in that: The ball nut seat (510) includes a sliding mounting seat, on the inner side of which a ball nut is provided. The ball nut is mounted on the transmission screw (507). The top of the sliding mounting seat is slidably connected to the bottom of the lifting support mounting plate (503) in the lateral direction. The support mounting plate (511) is mounted on the bottom of the sliding mounting seat.

7. The automated laser engraving equipment for rubber tires according to claim 5, characterized in that: A linear transmission mechanism (11) is provided between the first movable support plate (401) and the fixed mounting frame (3), between the U-shaped sliding mounting plate (402) and the first movable support plate (401), and between the second movable support plate (501) and the fixed mounting frame (3). The linear transmission mechanism (11) is a transmission structure in which a drive motor is equipped with a gear and a rack meshing.

8. The automated laser engraving equipment for rubber tires according to claim 5, characterized in that: The tire conveying mechanism (1) is connected to the L-shaped fixed support plate (2), the L-shaped fixed support plate (2) is connected to the fixed mounting frame (3), and the fixed mounting plate (601) is connected to the L-shaped fixed support plate (2) by welding.

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