Gantry suspension spraying device

Abstract

The utility model relates to the technical field of spraying, and particularly discloses a gantry suspension spraying device which comprises a portal frame, longitudinal linear guide rails are arranged on the portal frame, and vertical linear guide rails are arranged on the longitudinal linear guide rails and connected with the longitudinal linear guide rails in a matched mode. The bottom end of the vertical linear guide rail is provided with a six-axis robot arm, the six-axis robot arm is provided with a character spraying machine, one side of the character spraying machine is provided with a controller, the controller is electrically connected with the character spraying machine, the lower end of the character spraying machine is provided with a laser range finder, and the laser range finder is electrically connected with the controller; an ink box is arranged on one side of the character spraying machine, the ink box is communicated with the character spraying machine, and the problem that due to the fact that the surface of a maintenance vehicle is uneven, a mark foggy edge or a spray head interferes with a vehicle body is solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle painting technology, specifically to a gantry-mounted painting device. Background Technology

[0002] In industrial production, especially in vehicle manufacturing and repair, marking and painting vehicle bodies is a crucial process. For repair vehicles, particularly open wagons, the surface is prone to unevenness after use, requiring precise and high-quality painting to ensure clear and aesthetically pleasing markings. Traditional painting methods often employ manual operation or simple mechanical devices; however, these methods are frequently inefficient, produce inconsistent paint quality, and are ill-suited to the complexities of vehicle surfaces.

[0003] With the expansion of production scale and the increasing demands for coating quality, traditional coating methods have gradually revealed many shortcomings. For example, manual coating is labor-intensive, inefficient, and its quality is easily affected by the operator's skill level and working condition, making it difficult to guarantee the consistency and accuracy of markings. Some simple mechanical coating devices, when faced with uneven and complex shapes on vehicle surfaces, cannot achieve precise positioning and uniform coating, easily resulting in blurred markings and hazy edges. Furthermore, some coating schemes occupy a large space, affecting the normal operation of other equipment such as overhead cranes, and numerous ground-based auxiliary facilities can significantly disrupt the on-site production environment, impacting production flow and safety.

[0004] Currently, the main solutions to these problems are as follows:

[0005] Using multi-axis robotic arms for painting offers high flexibility, but it is costly, complex to maintain, and has limited adaptability to large-scale continuous production. Using painting equipment with fixed tracks improves positioning accuracy, but limits the painting range and makes it difficult to handle the complex shapes of the vehicle body.

[0006] The advantage of multi-axis robotic arm solutions is that they can achieve complex movements and high-precision spraying, but the disadvantages are high cost and difficult maintenance, making them unsuitable for large-scale application. Fixed-track spraying equipment has the advantages of relatively simple structure and low cost, but its limitations lie in insufficient spraying range and flexibility. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a gantry-mounted spraying device that effectively solves the problems of fogged edges on markings or interference between the spray nozzle and the vehicle body caused by uneven surfaces on the vehicle being inspected.

[0008] To solve the above problems, the technical solution adopted by this utility model is: a gantry-type suspended spraying device, characterized in that it includes a gantry frame, on which a longitudinal linear guide rail is provided, and a vertical linear guide rail is provided on the longitudinal linear guide rail and connected to the longitudinal linear guide rail; a six-axis robotic arm is provided at the bottom end of the vertical linear guide rail, on which a printing machine is provided, and a controller is provided on one side of the printing machine, which is electrically connected to the printing machine; a laser rangefinder is provided at the lower end of the printing machine, which is electrically connected to the controller; an ink cartridge is provided on one side of the printing machine, and the ink cartridge is connected to the printing machine.

[0009] The principle of this solution is as follows: The gantry provides stable support for the entire device, and the longitudinal linear guide moves horizontally on the gantry, thereby driving the connected vertical linear guide to change position in the horizontal direction. The vertical linear guide can extend and retract in the vertical direction, realizing the adjustment of the height of the six-axis robotic arm. The six-axis robotic arm has a high degree of flexibility and freedom, and can accurately control the inkjet printer to perform spraying operations at various angles and positions. The ink cartridge continuously supplies ink to the inkjet printer. The controller acts as the control center, sending instructions to the inkjet printer to control its spraying action and receiving distance information from the laser rangefinder. The laser rangefinder measures the distance between the inkjet printer and the surface to be sprayed in real time and feeds the data back to the controller. The controller adjusts the movement of the vertical linear guide and the robotic arm according to the distance information to adapt to the uneven surface of the vehicle being inspected, ensuring that the inkjet printer maintains a suitable distance from the vehicle surface, thereby avoiding interference between the nozzle and the vehicle body, reducing the phenomenon of fogging on the markings, and achieving a precise, uniform, and high-quality spraying effect.

[0010] The beneficial effects of this plan are:

[0011] 1. This system enables independent marking and spraying on both sides of the side walls and end walls, ensuring precise positioning and spraying quality. It does not occupy upper space, does not interfere with overhead crane operations, and requires minimal ground-level equipment, minimizing disruption to the production environment. A laser rangefinder measures the distance to the surface in real time, and the controller adjusts the vertical linear guides and robotic arm movements based on this distance information. This ensures the printer maintains a suitable distance from the vehicle surface, achieving precise spraying, effectively reducing marking haze, and improving marking clarity and accuracy. The automated spraying system also reduces manual operation time and labor intensity, enabling rapid and continuous spraying operations, significantly improving production efficiency. The controller precisely controls the entire spraying process, avoiding the instability in spraying quality caused by fatigue and varying skill levels during manual operation, ensuring consistently high-standard results for each spray.

[0012] Furthermore, the lettering machine has multiple nozzles arranged in combination, each nozzle containing a solenoid valve electrically connected to a controller. A processor is located on one side of the lettering machine and is also electrically connected to the controller. The controller controls the lettering machine to achieve the spraying of various forms and contents of markings, meeting diverse and complex spraying needs and increasing the applicability of the device. Simultaneously, multiple nozzles can work concurrently or selectively, allowing for rapid completion of lettering, reducing spraying time, and improving production efficiency. Furthermore, since each nozzle is relatively independent, it is easier to locate and repair faulty nozzles when a malfunction occurs, reducing equipment maintenance difficulty and downtime.

[0013] Furthermore, a UV lamp is installed on one side of the lettering nozzle, flush with the nozzle. The UV lamp can irradiate the coating immediately after spraying, greatly shortening the time for the coating to dry or cure naturally. This allows the lettering process to proceed immediately, thereby accelerating the entire production process and improving overall production efficiency. The hardened coating surface is more stable and robust, and the lettering adheres more clearly and accurately to the coating during lettering, reducing problems such as blurring, diffusion, or penetration, and ensuring the quality and clarity of the lettering.

[0014] Furthermore, a base is provided at the lower end of the gantry frame. The base is mounted on a slide rail and is slidably connected to the slide rail, allowing the entire gantry-mounted spraying device to move on the slide rail, thereby covering a larger working area. It is not limited to a fixed position and can perform spraying operations on a larger area of ​​the vehicle body.

[0015] Furthermore, the vertical linear guide rail can be vertically raised and lowered, allowing for flexible adjustment of the height of the inkjet printer and nozzle to accommodate different types and sizes of maintenance vehicles. This ensures precise spraying of vehicle surfaces of various heights. When there are local unevenness or bumps on the vehicle surface, the vertical linear guide rail can be raised and lowered to maintain a suitable distance between the nozzle and the surface, thereby achieving a uniform spraying effect.

[0016] Furthermore, the longitudinal linear guide rail is designed to slide horizontally back and forth, enabling the inkjet printer to move horizontally and cover a larger area of ​​the vehicle body surface without moving the entire gantry or vehicle body. This improves work efficiency and facilitates spraying at different horizontal positions on the vehicle body, ensuring the continuity and integrity of the spraying, whether on straight or curved sections.

[0017] Furthermore, the robotic arm is a six-axis robotic arm, which can achieve flexible movement in multiple directions and angles in three-dimensional space, and can accurately reach various complex positions on the surface of the vehicle body, adapting to vehicle bodies of different shapes and structures.

[0018] Furthermore, the controller is a PLC controller, which is electrically connected to the processor. It can be flexibly programmed according to specific spraying requirements and process flow, making it easy to modify and optimize the control logic to adapt to different production tasks and changes. At the same time, it can quickly process a large amount of data from components such as sensors and processors, and make accurate control decisions in a timely manner, thereby improving the system's response speed and control accuracy.

[0019] Furthermore, a reader is installed on one side of the laser rangefinder. This reader is electrically connected to the processor, which contains an automatic marking intelligent and information system module. After the reader automatically scans the vehicle model and license plate number information, it transmits the data to the automatic marking intelligent and information system module. Based on the vehicle model and license plate number information, the automatic marking intelligent and information system module automatically generates non-fixed information such as scheduled inspection information and weight information for the corresponding vehicle number and transmits this information, along with the vehicle model and license plate number information, to the marking and marking robot. The robot automatically generates a marking plan and performs the marking. Simultaneously, by automatically scanning and generating the marking plan, the time for manual input and setting is greatly reduced, enabling rapid marking and marking, significantly improving production efficiency, avoiding errors that may occur when manually identifying vehicle model and license plate number and inputting related information, and ensuring the accuracy and consistency of the marking information.

[0020] Furthermore, a paint spray gun is installed at the upper end of the lettering machine. The paint spray gun is electrically connected to the controller, enabling lettering and painting operations to be performed on the same equipment without the need to change equipment or adjust the work station, thus improving work efficiency and continuity. Attached Figure Description

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

[0022] Figure 2 This is a schematic diagram of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of this utility model;

[0025] Figure 5 This is a structural schematic diagram of the present invention.

[0026] Figure 6 This is a structural schematic diagram of the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of this utility model;

[0028] Figure 8 yes Figure 7 A magnified view of part I. Detailed Implementation

[0029] The reference numerals in the accompanying drawings include: gantry frame 1, vertical linear guide rail 2, longitudinal linear guide rail 3, robotic arm 4, base 5, slide rail 6, controller 7, laser rangefinder 8, inkjet printer 9, ultraviolet light 10, ink cartridge 11, reader 12, inkjet nozzle 13, solenoid valve 14.

[0030] Example 1 is basically as shown in the appendix. Figure 1-8 As shown: A gantry-mounted spraying device includes a gantry frame 1, on which a longitudinal linear guide rail 3 is provided, which can slide horizontally back and forth along the gantry frame 1. A vertical linear guide rail 2 is connected to the longitudinal linear guide rail 3, which can be vertically raised, lowered and extended. The bottom end of the vertical linear guide rail 2 is connected to a six-axis robotic arm 4, which can move flexibly in three-dimensional space to realize various complex spraying actions.

[0031] A lettering sprayer 9 is installed on the six-axis robotic arm 4. The lettering sprayer 9 has multiple spray nozzles 13 arranged in a matrix. A solenoid valve 14 is installed inside the spray nozzle 13. The controller 7 controls the opening and closing of the solenoid valve 14 to achieve the spraying of various forms and contents of marking letters. Moreover, when individual nozzles malfunction, it is easy to locate and repair them, reducing the difficulty of equipment maintenance and downtime.

[0032] A controller 7 is installed on one side of the inkjet printer 9. The controller 7 is electrically connected to the inkjet printer 9 and can precisely control the spraying action of the inkjet printer 9. A laser rangefinder 8 is installed at the lower end of the inkjet printer 9. The laser rangefinder 8 is electrically connected to the controller 7 and measures the distance between the inkjet printer 9 and the surface to be sprayed in real time. The data is fed back to the controller 7. The controller 7 adjusts the action of the vertical linear guide rail 2 and the robotic arm 4 according to the distance information to ensure that the inkjet printer 9 maintains a suitable distance from the vehicle body surface, so as to achieve precise spraying, reduce the haze phenomenon of marking, and improve the clarity and accuracy of marking.

[0033] A cartridge 11 is also installed on one side of the inkjet printer 9. The cartridge 11 is connected to the inkjet printer 9 and continuously supplies ink to the inkjet printer 9. A base 5 is installed at the lower end of the gantry 1. The base 5 is mounted on the slide rail 6 and is slidably connected to the slide rail 6. This allows the entire device to move on the slide rail 6, covering a larger working area and enabling spraying operations on a larger area of ​​the vehicle body.

[0034] A UV lamp 10 is installed on one side of the lettering nozzle 13, and the UV lamp 10 is flush with the lettering nozzle 13. After the spraying is completed, the UV lamp 10 can immediately irradiate the coating. The UV lamp can quickly harden the coating and then the lettering can be sprayed on the coating. This greatly shortens the time waiting for the coating to dry or cure naturally, so that the lettering process can be carried out immediately. This speeds up the entire production process, improves the overall production efficiency, and eliminates the need to set up large drying or curing equipment and space separately for coating curing, saving production space and equipment investment.

[0035] The longitudinal linear guide rail 3 is designed with a horizontally reciprocating sliding structure, which allows the inkjet printer 9 to move in the horizontal direction, covering a larger area of ​​the vehicle body surface, ensuring the continuity and integrity of the spraying, and improving work efficiency.

[0036] Controller 7 is a PLC controller 7, which can be flexibly programmed according to specific spraying requirements and process flow, making it easy to modify and optimize the control logic, adapt to different production tasks and changes, and at the same time, it can quickly process a large amount of data from components such as sensors and processor 12, and make accurate control decisions in a timely manner, thereby improving the system's response speed and control accuracy.

[0037] A recognizer 12 is installed on one side of the laser rangefinder 8. The controller 7 of the recognizer 12 is equipped with an automatic painting intelligent and information system module. After the recognizer 12 automatically scans the vehicle model and license plate information, it transmits the data to the automatic painting intelligent and information system module. It automatically generates non-fixed information such as the scheduled inspection information and weight information of the corresponding license plate number and transmits it along with the vehicle model and license plate information to the marking and painting robot. The robot automatically generates the painting plan and marks the vehicle. The recognizer 12 used above can be a camera, a recognition sensor, or a scanner. By scanning and recognizing, the time for manual input and setting is greatly reduced, production efficiency is significantly improved, and the accuracy and consistency of the marking information are ensured.

[0038] The upper end of the lettering machine 9 is equipped with a paint spray gun 15, which is electrically connected to the controller 7. This enables lettering and painting operations to be performed on the same equipment without the need to change equipment or adjust the work station, thus improving work efficiency and continuity.

[0039] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings. However, this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A gantry-mounted spraying device, characterized in that, The device includes a gantry frame with a longitudinal linear guide rail. A vertical linear guide rail is mounted on the longitudinal linear guide rail and connected to it. A six-axis robotic arm is mounted at the bottom of the vertical linear guide rail. A typewriter is mounted on the six-axis robotic arm. A controller is mounted on one side of the typewriter and is electrically connected to it. A laser rangefinder is mounted at the lower end of the typewriter and is electrically connected to the controller. An ink cartridge is mounted on one side of the typewriter and is connected to it.

2. The gantry-mounted spraying device according to claim 1, characterized in that: The inkjet printer has multiple nozzles arranged in combination. Each nozzle is equipped with a solenoid valve, which is electrically connected to the controller. A processor is located on one side of the inkjet printer and is electrically connected to the controller.

3. The gantry-mounted spraying device according to claim 2, characterized in that: A UV lamp is installed on one side of the lettering nozzle, and the UV lamp is flush with the lettering nozzle.

4. The gantry-mounted spraying device according to claim 1, characterized in that: The lower end of the gantry frame is provided with a base, which is mounted on a slide rail and is slidably connected to the slide rail.

5. The gantry-mounted spraying device according to claim 1, characterized in that: The vertical linear guide rail can be vertically raised, lowered, extended, and retracted.

6. The gantry-mounted spraying device according to claim 1, characterized in that: The longitudinal linear guide rail is configured to slide horizontally back and forth.

7. A gantry-mounted spraying device according to claim 1, characterized in that: The controller is a PLC controller, which is electrically connected to a computer.

8. A gantry-mounted spraying device according to claim 1, characterized in that: A reader is provided on one side of the laser rangefinder. The reader is electrically connected to the processor, which contains an automatic painting intelligent and information system module.

9. A gantry-mounted spraying device according to claim 1, characterized in that: The upper end of the inkjet printer is equipped with a paint spray gun, which is electrically connected to the controller.

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