Metal middle frame ink jet device

Abstract

The utility model discloses a metal middle frame ink jet device, and belongs to the technical field of electronic equipment manufacturing. The ink jet device comprises a rack, an X / Y / Z axis moving module, a UV axis adjusting mechanism and a metal middle frame fixing mechanism. The Y-axis moving module is arranged on a workbench of the rack, and the UV-axis adjusting mechanism is fixed to the Y-axis moving module. The metal middle frame is loaded in the jig and then is fixed on the metal middle frame fixing mechanism; the UV shaft adjusting mechanism is used for controlling the metal middle frame fixing mechanism and the metal middle frame to rotate by 360 degrees; the X-axis moving module and the Z-axis moving module are fixed above the Y-axis moving module, one end, close to the Y-axis moving module, of the Z-axis moving module is provided with an ink-jet needle head fixing position, and a nozzle of the ink-jet needle head is downwards fixed on the ink-jet needle head fixing position. According to the scheme, the problems of dislocation and blurring of ink spraying are avoided, all-directional high-precision ink spraying treatment on the metal middle frame is achieved, the product quality is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electronic equipment manufacturing technology, and in particular to a metal frame inkjet device. Background Technology

[0002] In modern electronic devices, the casing typically uses a metal frame structure. The metal frame not only offers wear resistance and excellent heat dissipation, but also enhances the product's appearance and gives users a premium impression. During the production and assembly process, the metal frame is first machined using CNC machine tools. Then, electronic components such as the capacitive touchscreen, battery, and camera are mounted on it, ultimately forming a complete device. To ensure image quality and visual effects, the areas on the metal frame corresponding to the camera, photosensitive hole, and earpiece hole usually require light-shielding treatment to prevent light leakage from affecting the user experience.

[0003] Currently, most manufacturers use manual inkjet printing to apply ink to areas requiring shade. Specifically, operators use a spray gun, powered by compressed air, to ablate ink into tiny droplets and spray them onto the product surface. However, this traditional method has several problems:

[0004] (1) Unstable product quality: The large amount of ink sprayed and the inaccuracy of manual operation can easily lead to problems such as ink overflow, ink accumulation, uneven spraying, and white exposure. The first-pass yield is only about 74%, requiring a lot of rework, which wastes production efficiency and consumes manpower.

[0005] (2) Waste of resources: According to data, about 4,000 grams of finished ink are required for every 8,000 pieces of material. The amount of ink used is large and the cost is high.

[0006] (3) Environmental pollution, health hazards, and safety risks: Due to the large volume of ink sprayed from the spray gun, most of the ink fumes cannot be absorbed in time and remain in the processing area, resulting in severe pollution of heavy metals and volatile organic compounds in the air, causing adverse effects on the environment. Long-term exposure to ink fumes can harm the health of operators, such as respiratory diseases and other chronic illnesses. Ink fumes are flammable substances, and improper use of electricity in the workshop can easily cause fire accidents, increasing the risks in the production process.

[0007] In summary, existing manual inkjet masking methods are not only inefficient and costly, but also pose serious environmental and safety problems, and urgently need improvement. Utility Model Content

[0008] This invention addresses the aforementioned problems in the prior art by providing a metal frame inkjet device that enables automatic and precise inkjet printing.

[0009] The metal frame inkjet device provided by this utility model includes a frame, an inkjet controller, an X-axis moving module, a Y-axis moving module, a Z-axis moving module, a UV axis adjustment mechanism, and a metal frame fixing mechanism.

[0010] The Y-axis moving module is mounted on the worktable of the frame, and the UV-axis adjusting mechanism is fixed on the Y-axis moving module; the metal frame fixing mechanism is fixedly connected to the UV-axis adjusting mechanism, and the metal frame is loaded into the fixture and then fixed to the metal frame fixing mechanism; the UV-axis adjusting mechanism is used to control the 360° rotation of the metal frame fixing mechanism and the metal frame;

[0011] The X-axis moving module and the Z-axis moving module are fixed above the Y-axis moving module. The Z-axis moving module is fixedly connected to the X-axis moving module. An inkjet needle fixing position is provided at one end of the Z-axis moving module near the Y-axis moving module. The inkjet needle nozzle is fixed downward on the inkjet needle fixing position. Under the drive of the cylinder, the inkjet is precisely sprayed onto the inkjet position of the metal frame.

[0012] In the metal frame inkjet device provided by this utility model, the UV axis adjustment mechanism includes a sliding base, a U-axis motor, a V-axis motor, a U-axis rotating platform, a V-axis fixed connector, and a V-axis rotating platform.

[0013] The sliding base includes a base plate and a vertical plate that are perpendicular to each other. The base plate is fixed on the slider of the Y-axis moving module. The U-axis motor is mounted on one side of the vertical plate that is perpendicular to the extension direction of the guide rail of the Y-axis moving module. The U-axis rotating platform is disposed on the other side of the vertical plate that is perpendicular to the extension direction of the guide rail of the Y-axis moving module. The U-axis motor drives the U-axis rotating platform to rotate along the extension direction of the guide rail of the Y-axis moving module. The V-axis fixed connector is fixedly connected to one side of the U-axis rotating platform. The V-axis motor is disposed on the side of the V-axis fixed connector away from the Y-axis moving module. The V-axis motor (630) and the U-axis motor (620) are arranged perpendicular to each other. The V-axis rotating platform is disposed on the side of the V-axis fixed connector close to the Y-axis moving module. The metal frame fixing mechanism is disposed on the side of the V-axis rotating platform away from the V-axis fixed connector.

[0014] In the metal frame inkjet device provided by this utility model, the fixture includes a fixture top cover and a fixture bottom shell, and the fixture top cover and the fixture bottom shell are provided with openings that match the position and shape of the metal frame to be inkjetted.

[0015] In the metal frame inkjet device provided by this utility model, the metal frame fixing mechanism includes a first fixing platform and a second fixing platform; the first fixing platform is fixed parallel to the V-axis rotation platform, and the second fixing platform is fixed perpendicularly to the first fixing platform; the fixture bottom shell is magnetically fixed to the second fixing platform.

[0016] The metal frame inkjet printer provided by this utility model further includes an air source filter assembly; the air inlet of the air source filter assembly is connected to the air supply pipeline of the factory's compressed air station, and the air outlet is connected to the inkjet needle.

[0017] The metal frame inkjet device provided by this utility model further includes an air suction component, which is used to suck up the gaseous ink particles ejected by the inkjet needle.

[0018] This utility model has the following beneficial effects: The metal frame inkjet device provided by this utility model includes a frame, an X-axis moving module, a Y-axis moving module, a Z-axis moving module, a UV-axis adjusting mechanism, and a metal frame fixing mechanism. The Y-axis moving module is set on the worktable of the frame, and the UV-axis adjusting mechanism is fixed on the Y-axis moving module; the metal frame fixing mechanism is fixedly connected to the UV-axis adjusting mechanism, and the metal frame is loaded into the fixture and then fixed to the metal frame fixing mechanism; the UV-axis adjusting mechanism is used to control the 360° rotation of the metal frame fixing mechanism and the metal frame; the X-axis moving module and the Z-axis moving module are fixed above the Y-axis moving module, and an inkjet needle fixing position is provided at one end of the Z-axis moving module near the Y-axis moving module. The inkjet needle nozzle is fixed downward on the inkjet needle fixing position, and under the drive of the cylinder, the inkjet is precisely sprayed onto the inkjet position of the metal frame. This invention achieves precise positioning of the inkjet printing position through a five-axis linkage mechanism and precise control of the ink volume through the inkjet nozzle, avoiding misalignment and blurring of ink spraying. It enables high-precision inkjet printing of the metal frame from all directions, improving product quality, reducing production costs, reducing environmental pollution and health hazards, and eliminating safety risks. Attached Figure Description

[0019] Figure 1-2 A three-dimensional structural diagram of the metal frame inkjet device provided in an embodiment of this utility model.

[0020] Figure 3 A three-dimensional structural diagram of the main body of the metal frame inkjet device provided in an embodiment of this utility model.

[0021] Figure 4 A three-dimensional structural diagram of the UV axis adjustment mechanism of the metal frame inkjet device provided in this embodiment of the utility model.

[0022] Figure 5 A three-dimensional structural diagram of the metal frame fixing mechanism of the metal frame inkjet device provided in this embodiment of the utility model.

[0023] Figure 6 This is a schematic diagram of the inkjet printing area on the front of the metal frame provided in Embodiment 1 of this utility model.

[0024] Figure 7 This is a schematic diagram of the inkjet printing area on the reverse side of the metal frame provided in Embodiment 1 of this utility model.

[0025] Figure 8 This is a three-dimensional structural diagram of the fixture provided in Embodiment 1 of this utility model.

[0026] Figure 9 This is a schematic diagram of the fixture cover structure provided in Embodiment 1 of this utility model.

[0027] Figure 10 This is a schematic diagram of the bottom shell structure of the fixture provided in Embodiment 1 of this utility model.

[0028] In the attached diagram:

[0029] 100. Rack;

[0030] 200. Inkjet controller;

[0031] 300. X-axis moving module; 310. X-axis motor; 320. X-axis guide rail; 330. X-axis slider;

[0032] 400. Y-axis moving module; 410. Y-axis motor; 420. Y-axis guide rail; 430. Y-axis slider;

[0033] 500. Z-axis moving module; 510. Z-axis motor; 520. Z-axis guide rail; 530. Z-axis slider; 540. Inkjet needle fixing position;

[0034] 600. UV axis adjustment mechanism; 610. Sliding base; 611. Base plate; 612. Vertical plate; 620. U-axis motor; 630. V-axis motor; 640. U-axis rotating platform; 650. V-axis fixed connector; 660. V-axis rotating platform;

[0035] 700. Metal frame fixing mechanism; 710.

[0036] 800. Air source filter assembly;

[0037] 900, screen. Detailed Implementation

[0038] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0039] The metal frame inkjet device provided by this utility model is used to spray ink onto the inkjet position of the metal frame.

[0040] like Figure 1-5 As shown, this utility model embodiment provides a metal frame inkjet device, which includes a frame 100, an inkjet controller 200, an X-axis moving module 300, a Y-axis moving module 400, a Z-axis moving module 500, a UV axis adjusting mechanism 600, and a metal frame fixing mechanism 700.

[0041] The Y-axis moving module 400 is mounted on the worktable of the frame 100, and the UV-axis adjusting mechanism 600 is fixed on the Y-axis moving module 400. The metal frame fixing mechanism 700 is fixedly connected to the UV-axis adjusting mechanism 600. The metal frame is loaded into the fixture and then fixed to the metal frame fixing mechanism 700. The UV-axis adjusting mechanism 600 is used to control the 360° rotation of the metal frame fixing mechanism 700 and the metal frame.

[0042] The X-axis moving module 300 and the Z-axis moving module 500 are fixed above the Y-axis moving module 400. The Z-axis moving module 500 is fixedly connected to the X-axis moving module 300. An inkjet needle fixing position 540 is provided at one end of the Z-axis moving module 500 near the Y-axis moving module 400. The inkjet needle nozzle is fixed downward on the inkjet needle fixing position 540. Under the drive of the cylinder, the inkjet is precisely sprayed onto the inkjet position of the metal frame.

[0043] In this embodiment of the invention, the main structure of the metal frame inkjet device is located above the frame 100, such as... Figure 2 As shown, the portion above the rack 100 can also be fitted with cabinet doors, which enclose the main structure to form a cabinet. Furthermore, as... Figure 1-2 As shown, the bottom of the frame is also equipped with columns and rollers. The columns are used to support the frame and suspend its bottom to prevent it from getting damp; the rollers facilitate the movement of the device.

[0044] like Figure 1 , Figure 3As shown in the embodiment of this utility model, the X-axis moving module 300, Y-axis moving module 400, and Z-axis moving module 500 are all conventional moving modules. The X-axis moving module 300 is fixed to the frame 100 by two columns. The X-axis moving module 300 includes an X-axis motor 310, an X-axis guide rail 320, and an X-axis slider 330. The X-axis motor 310 is located at one end of the X-axis guide rail 320, and the X-axis slider 330 is slidably mounted on the X-axis guide rail 320. The Y-axis moving module 400 includes a Y-axis motor 410, a Y-axis guide rail 420, and a Y-axis slider 430. The Y-axis motor 410 is located at one end of the Y-axis guide rail 420, and the Y-axis slider 430 is slidably mounted on the Y-axis guide rail 420. The Z-axis moving module 500 is mounted on the Y-axis guide rail 420. The Z-axis moving module 500 includes a Z-axis motor 510, a Z-axis guide rail 520, and a Z-axis slider 530. The Z-axis guide rail 520 is fixed on the X-axis slider 330. The Z-axis motor 510 is mounted on one end of the Z-axis guide rail 520. The Z-axis slider 530 is slidably mounted on the Z-axis guide rail 520. An inkjet needle fixing position 540 is provided at one end of the Z-axis guide rail 520 near the Y-axis moving module 400. The inkjet needle is positioned facing the Y-axis moving module 400.

[0045] like Figure 1 As shown in this embodiment of the invention, the metal-framed inkjet device further includes a screen 900, which serves as the input / output unit of the inkjet controller 200 and is communicatively connected to it. The inkjet controller 200 includes a controller unit and a drive circuit. The controller unit is the core of the inkjet controller, responsible for receiving and processing instructions from a host computer or user interface to control the inkjet process. The controller unit includes a microprocessor, memory, and input / output interfaces. The drive circuit amplifies the signals emitted by the controller unit to drive the inkjet nozzles. The drive circuit includes voltage amplification circuits and current amplification circuits to ensure that the inkjet head or nozzles can work precisely according to instructions, achieving precise control of the inkjet process, including parameters such as inkjet volume, inkjet speed, and inkjet angle. The inkjet controller helps ensure inkjet quality and effect. Through optimized control algorithms and energy-saving design measures, the inkjet controller can reduce energy consumption and pollution while ensuring inkjet quality and effect.

[0046] In this embodiment of the invention, the inkjet nozzle includes a nozzle, an ink channel, and a drive element. The nozzle is a key component of the inkjet nozzle and has a small-hole or tall cylindrical structure. To ensure the mechanical strength of the printhead, the nozzle plate cannot be too thin; this structural design helps ensure the stability and durability of the nozzle. The ink channel is mainly responsible for transporting ink from the ink cartridge to the nozzle, and it has a significant impact on the ink flow and the nozzle's ejection effect. The drive element is a drive system composed of standard components such as a striker, adjusting rod, cylinder, piston, and air inlet, and its main function is to control the ink ejection. This embodiment of the inkjet nozzle uses a pneumatic inkjet method, pressurizing the ink through air to propel the ink droplets out. The inkjet nozzle can precisely control the amount of ink ejected each time, avoiding the excessive ink problem common in traditional spray guns, ensuring a clear and uniform inkjet effect. The principle of the inkjet nozzle is similar to that of the printhead in a dispensing machine, and will not be described in detail here.

[0047] In this embodiment of the invention, the manual inkjet printing method is replaced with an automatic inkjet printing method. A five-axis linkage platform is formed by the X-axis moving module 300, Y-axis moving module 400, Z-axis moving module 500, and UV-axis adjustment mechanism 600. This platform achieves precise positioning, avoiding misalignment and ambiguity. The amount of ink ejected from the inkjet nozzles is precisely controlled by cylinders, significantly improving the appearance quality and consistency of the products. Compared to manual inkjet printing, the yield rate is increased by 24% because excessive ink ejection is avoided. In manual inkjet printing, the average output per person is approximately 400-450 pieces per shift. The automatic inkjet printing process increases efficiency by 60% compared to manual inkjet printing, increasing average output per person by over 100%, with a single person and machine producing 8500-9000 pieces per shift. Precise quantitative inkjet printing reduces ink consumption. Automated production can be achieved through simple programming of the inkjet controller. The five-axis linkage platform allows for 360° rotation of the metal frame, enabling precise positioning of the inkjet nozzles at any point on the frame. This achieves high-precision inkjet processing from all angles, without blind spots, and is suitable for metal frame products of different models and inkjet positioning requirements, meeting diverse production needs. After being loaded into the fixture, the metal frame is fixed to the metal frame fixing mechanism, ensuring stability and repeatability during processing and further improving the yield rate.

[0048] like Figure 3 , Figure 4 As shown in the embodiment of this utility model, the UV axis adjustment mechanism 600 includes a sliding base 610, a U-axis motor 620, a V-axis motor 630, a U-axis rotation platform 640, a V-axis fixed connector 650, and a V-axis rotation platform 660.

[0049] The sliding base 610 includes a base plate 611 and a vertical plate 612 that are perpendicular to each other. The base plate 611 is fixed on the slider of the Y-axis moving module 400. The U-axis motor 620 is mounted on one side of the vertical plate 611 that is perpendicular to the extension direction of the guide rail of the Y-axis moving module 400. The U-axis rotating platform 640 is disposed on the other side of the vertical plate 611 that is perpendicular to the extension direction of the guide rail of the Y-axis moving module 400. The U-axis motor 620 drives the U-axis rotating platform 640 along the extension direction of the guide rail of the Y-axis moving module 400. Rotation; the V-axis fixed connector 650 is fixedly connected to one side of the U-axis rotating platform 640, the V-axis motor 630 is located on the side of the V-axis fixed connector 650 away from the Y-axis moving module 400, the V-axis motor 630 and the U-axis motor 620 are arranged perpendicular to each other, the V-axis rotating platform 630 is located on the side of the V-axis fixed connector 650 close to the Y-axis moving module 400, and the metal frame fixing mechanism 700 is located on the side of the V-axis rotating platform 660 away from the V-axis fixed connector 650.

[0050] In this embodiment of the invention, the fixture includes a fixture top cover and a fixture bottom shell. Both the fixture top cover and the fixture bottom shell have openings that match the inkjet printing position and shape of the metal frame. The fixture top cover and the fixture bottom shell are connected by a fitting or interference fit. In this embodiment of the invention, different models and inkjet printing positions of metal frame products require corresponding fixtures. The fixture is made of bakelite material, is lightweight, and facilitates operator replacement of fixtures and switching of product models.

[0051] like Figure 5 As shown in the embodiment of this utility model, the metal frame fixing mechanism 700 includes a first fixing platform 710 and a second fixing platform 720; the first fixing platform 710 is fixed parallel to the V-axis rotation platform 660, and the second fixing platform 720 is fixed perpendicular to the first fixing platform 710; the fixture bottom shell is magnetically fixed to the second fixing platform 720. In this embodiment of the utility model, the second fixing platform 720 is the support platform of the fixture, and the fixture bottom shell is magnetically fixed to the second fixing platform 720. The magnetic fixing method is firm and convenient for placing and removing the fixture.

[0052] In this embodiment of the invention, the U-axis motor 620 controls the metal frame product to rotate along the Y-axis guide rail, and the V-axis motor 630 controls the metal frame product to rotate along a direction perpendicular to the Y-axis guide rail. Under the combined action of the U-axis motor 620 and the V-axis motor 630, the metal frame product can achieve 360° rotation, thereby enabling inkjet printing at various inkjet printing positions on the sidewalls, front, and back of the metal frame. Initially, the U-axis motor 620 is adjusted to make the second fixed platform 720 parallel to the horizontal plane; subsequently, only the V-axis motor 630 needs adjustment.

[0053] like Figure 1 As shown in the embodiment of this utility model, the metal frame inkjet device further includes an air source filter assembly 800; the air inlet of the air source filter assembly 800 is connected to the air supply pipeline of the factory's compressed air station, and the air outlet is connected to the inkjet needle. The air source filter assembly typically consists of a housing and a filter element. The housing serves as the main body of the filter, with internal space designed for installing the filter element and other auxiliary components. The filter element is the core component of the filter, used to intercept and remove impurities from the air source. The material and precision of the filter element directly affect the filtration effect. Common filter element materials include paper, metal mesh, and fiber, with filtration precision reaching the micron level. The air inlet of the air source filter assembly is directly connected to the air supply pipeline of the factory's compressed air station, and the other end is connected to the equipment's air supply end, such as standard components like pneumatic valves, cylinders, pressure gauges, and exhaust valves on the equipment. The air source filter assembly is a key component in the pneumatic system to ensure air source quality. It removes impurities from the air source through the interception action of the filter element, stabilizing air source quality and protecting pneumatic equipment from contamination damage. When selecting and using air source filter components, users should make reasonable selections and perform maintenance according to specific process requirements and equipment characteristics to ensure the normal operation and efficient production of the pneumatic system.

[0054] In this embodiment of the invention, the metal-frame inkjet device further includes an air suction component for extracting the gaseous ink particles ejected from the inkjet nozzle. Traditional manual ink spraying methods suffer from drawbacks: large ink volumes, significant ink vapor buildup that cannot be promptly removed, heavy metals and volatile organic compounds in the ink pollute the air and pose health risks, and the flammable nature of the ink vapor increases the risk of fire if electricity is not used properly. This invention utilizes an inkjet nozzle, which produces less ink and less ink vapor in the air. Furthermore, the metal-frame inkjet device incorporates an air suction component to promptly extract the gaseous ink particles ejected from the nozzle, ensuring the health and safety of workers at the processing site, improving the working environment, and preventing ink vapor pollution or fires.

[0055] The working principle of the metal frame inkjet device of this utility model will be described in detail below using a specific embodiment as an example.

[0056] Example 1

[0057] like Figures 6-7 As shown, the metal frame of Example 1 includes a metal border and a metal middle plate. A1-A4 are four inkjet printing areas. A1 is part of the metal border, A2-A3 are on the front of the metal middle plate, and A4 is on the back of the metal middle plate. This example has high requirements for the inkjet printing quality of each area: the sidewalls of area A1 need to be blackened, and ink must not be sprayed onto the surface; the photosensitive foam bonding area and the sidewalls of the photosensitive holes in area A2 need to be blackened, and ink must not be sprayed onto the upper and left welding areas; the inclined and vertical surfaces of area A3 must be covered with ink, with more than 1 / 2 of the sidewall area blackened, and no ink is allowed on the back; no foreign objects are allowed on the upper surface, inclined surface, corners, and vertical surfaces; the blackened areas must be completely covered, and no dotted or linear un-blackened areas are allowed; the ink thickness of area A4 is controlled, with a single layer of ink of 0.008mm and a total thickness controlled according to ma × 0.15mm.

[0058] like Figures 8-10 The fixture shown is from Embodiment 1. The upper cover of the fixture is opposite the front side of the metal middle plate containing A1-A3, and the lower cover is opposite the back side of the metal middle plate containing A4. The upper cover has three openings, B1-B3, corresponding to the three inkjet areas A1-A3 respectively. The lower cover has an opening, B4, corresponding to the inkjet area A4. The upper cover and lower cover are fixedly connected by a fitting or interference fit. Furthermore, the lower cover has four magnetic attachment points B5, which magnetically attach the lower cover to the metal middle frame fixing mechanism.

[0059] The workflow of using the metal frame inkjet device of this embodiment to perform inkjet printing on the four inkjet areas A1-A4 is as follows:

[0060] (1) Fix the metal middle frame between the upper cover of the fixture and the bottom shell of the fixture, and fix the metal middle frame to the metal middle frame fixing mechanism through the bottom shell of the fixture, with the front of the metal middle plate facing up.

[0061] (2) The X-axis motor drives the X-axis slider to move according to the instructions of the inkjet controller, which drives the inkjet needle to move to the right. The Z-axis motor drives the inkjet needle to move downward to above the A1 spraying area according to the instructions. At the same time, the Y-axis motor drives the Y-axis slider to move according to the instructions, which drives the metal frame fixing mechanism to move inward, so that the side wall of the metal frame is exposed. While the X-axis motor drives the inkjet needle to move to the right according to the instructions, the driving element in the inkjet needle drives the ink to be ejected from the nozzle, thus realizing inkjet spraying of the A1 area.

[0062] (3) The Z-axis motor controls the Z-axis slider to move upward according to the instruction to prevent the product from colliding with the inkjet needle. The Y-axis slider is controlled to move the A2 area below the inkjet needle. The V-axis motor controls the metal frame fixing mechanism to rotate according to the instruction, so that the product tilts inward to ensure that the ink can be sprayed onto the inner wall of the photosensitive hole of the product. The Z-axis slider descends and the inkjet needle sprays ink onto the A2 area.

[0063] (4) The Z-axis motor controls the Z-axis slider to move upward, the Y-axis motor controls the A3 area to move below the inkjet needle, the Z-axis slider descends, and the inkjet needle sprays ink onto the A3 area.

[0064] (5) The Z-axis motor controls the Z-axis slider to move upward, the V-axis motor controls the second fixed platform to rotate 180 degrees so that the A4 inkjet area faces upward, the Y-axis motor controls the A4 area to move below the inkjet needle, the Z-axis slider descends, and the inkjet needle sprays ink onto the A4 area.

[0065] (6) After the inkjet printing is completed, the Z-axis motor controls the Z-axis slider to move upward, the V-axis motor controls the second fixed platform to rotate 180°, the metal middle plate faces upward, the X and Y axis sliders move to the initial position, and the operator takes out the metal middle frame.

[0066] This utility model has the following beneficial effects: The metal frame inkjet device provided by this utility model includes a frame, an X-axis moving module, a Y-axis moving module, a Z-axis moving module, a UV-axis adjusting mechanism, and a metal frame fixing mechanism. The Y-axis moving module is set on the worktable of the frame, and the UV-axis adjusting mechanism is fixed on the Y-axis moving module; the metal frame fixing mechanism is fixedly connected to the UV-axis adjusting mechanism, and the metal frame is loaded into the fixture and then fixed to the metal frame fixing mechanism; the UV-axis adjusting mechanism is used to control the 360° rotation of the metal frame fixing mechanism and the metal frame; the X-axis moving module and the Z-axis moving module are fixed above the Y-axis moving module, and an inkjet needle fixing position is provided at one end of the Z-axis moving module near the Y-axis moving module. The inkjet needle nozzle is fixed downward on the inkjet needle fixing position, and under the drive of the cylinder, the inkjet is precisely sprayed onto the inkjet position of the metal frame. This invention achieves precise positioning of the inkjet printing position through a five-axis linkage mechanism and precise control of the ink volume through the inkjet nozzle, avoiding misalignment and blurring of ink spraying. It enables high-precision inkjet printing of the metal frame from all directions, improving product quality, reducing production costs, reducing environmental pollution and health hazards, and eliminating safety risks.

[0067] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many modifications under the guidance of the present invention without departing from the spirit and scope of the claims. All of these modifications are within the protection scope of the present invention.

Claims

1. A metal-framed inkjet printer, characterized in that, The metal frame inkjet device includes a frame (100), an inkjet controller (200), an X-axis moving module (300), a Y-axis moving module (400), a Z-axis moving module (500), a UV axis adjusting mechanism (600), and a metal frame fixing mechanism (700). The Y-axis moving module (400) is mounted on the worktable of the frame (100), and the UV-axis adjusting mechanism (600) is fixed on the Y-axis moving module (400); the metal frame fixing mechanism (700) is fixedly connected to the UV-axis adjusting mechanism (600), and the metal frame is loaded into the fixture and then fixed to the metal frame fixing mechanism (700); the UV-axis adjusting mechanism (600) is used to control the metal frame fixing mechanism (700) and the metal frame to rotate 360°. The X-axis moving module (300) and the Z-axis moving module (500) are fixed above the Y-axis moving module (400). The Z-axis moving module (500) is fixedly connected to the X-axis moving module (300). An inkjet needle fixing position (540) is provided at one end of the Z-axis moving module (500) near the Y-axis moving module (400). The inkjet needle nozzle is fixed downward on the inkjet needle fixing position (540) and accurately inkjet to the inkjet position of the metal frame under the drive of the cylinder.

2. The metal frame inkjet device according to claim 1, characterized in that, The UV axis adjustment mechanism (600) includes a sliding base (610), a U-axis motor (620), a V-axis motor (630), a U-axis rotating platform (640), a V-axis fixed connector (650), and a V-axis rotating platform (660); The sliding base (610) includes a base plate (611) and a vertical plate (612) that are perpendicular to each other. The base plate (611) is fixed on the slider of the Y-axis moving module (400). The U-axis motor (620) is mounted on one side of the vertical plate (612) perpendicular to the extension direction of the guide rail of the Y-axis moving module (400). The U-axis rotating platform (640) is disposed on the other side of the vertical plate (612) perpendicular to the extension direction of the guide rail of the Y-axis moving module (400). The U-axis motor (620) drives the U-axis rotating platform (640) to extend along the guide rail of the Y-axis moving module (400). The direction of rotation is as follows: the V-axis fixed connector (650) is fixedly connected to one side of the U-axis rotating platform (640); the V-axis motor (630) is located on the side of the V-axis fixed connector (650) away from the Y-axis moving module (400); the V-axis motor (630) and the U-axis motor (620) are arranged perpendicular to each other; the V-axis rotating platform (660) is located on the side of the V-axis fixed connector (650) close to the Y-axis moving module (400); and the metal frame fixing mechanism (700) is located on the side of the V-axis rotating platform (660) away from the V-axis fixed connector (650).

3. The metal frame inkjet device according to claim 2, characterized in that, The fixture includes a fixture top cover and a fixture bottom shell, and the fixture top cover and the fixture bottom shell are provided with openings that match the position and shape of the metal middle frame to be inkjet printed.

4. The metal frame inkjet device according to claim 3, characterized in that, The metal frame fixing mechanism (700) includes a first fixing platform (710) and a second fixing platform (720); the first fixing platform (710) is fixed parallel to the V-axis rotation platform (660), and the second fixing platform (720) is fixed perpendicular to the first fixing platform (710); the fixture bottom shell is magnetically fixed to the second fixing platform (720).

5. The metal frame inkjet device according to claim 1, characterized in that, The metal frame inkjet device also includes an air source filter assembly (800); the air inlet of the air source filter assembly (800) is connected to the air supply pipeline of the factory's compressed air station, and the air outlet is connected to the inkjet needle.

6. The metal frame inkjet device according to claim 1, characterized in that, The metal frame inkjet device also includes an air suction component, which is used to suck up the gaseous ink particles ejected by the inkjet needle.

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