Lifting structure of cross beam of UV printer

Abstract

The utility model relates to the technical field of printers, in particular to a lifting structure of a UV printer beam, which comprises a printer frame, a nozzle trolley guide rail, a lifting support plate, a motor, a transmission shaft, a worm, a slider guide rail, a slider, a support plate mounting block, a worm gear, a threaded column, a lifting block, a driving wheel, a driven wheel, a transmission belt, a limit switch and a trigger part. The lifting device is ingenious in structure, the motor drives the driving wheel, the driven wheel and the transmission shaft are driven to rotate through the transmission belt, the worm is meshed with the worm gear, power is transmitted to the threaded column, the threaded column rotates to enable the lifting block to drive the nozzle trolley guide rail to ascend and descend, and the transmission mode is stable in transmission ratio and high in precision; the nozzle trolley guide rail can be prevented from sliding down accidentally, the lifting assemblies on the two sides work synchronously, the two sliding block guide rails are matched with the sliding blocks, it is guaranteed that the nozzle trolley guide rail is kept horizontal in the lifting process, and the printing precision is prevented from being influenced by inclination.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, specifically to a lifting structure for the crossbeam of a UV printer. Background Technology

[0002] UV printers are devices capable of printing high-quality images on various material surfaces and are widely used in advertising, decoration, packaging, signage, and other fields. In recent years, UV printer technology has developed rapidly, with significant improvements in printing speed, accuracy, and color reproduction. However, the crossbeam, also known as the guide rail, of the printhead carriage in existing UV printers still has some problems. For example, some UV printers lack an automatic lifting function for the crossbeam, which requires replacing the printer or manually adjusting the crossbeam height when printing larger products. This not only increases operational complexity but also wastes time and manpower. Some printers use electric push rods for adjustment, but due to the large mass of the crossbeam and printhead carriage, they are not only prone to damage and have poor stability, but also have limitations in terms of precision control during adjustment. Utility Model Content

[0003] The purpose of this utility model is to provide a lifting structure for the crossbeam of a UV printer to solve the aforementioned technical problems.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a lifting structure for a UV printer beam, including a printer frame and a printhead carriage guide rail. Lifting components are arranged on two parallel sides of the printer frame. A transmission component is installed on the printer frame. The lifting component includes two slider guide rails, each with a slider slidably connected to it. The sliders and slider guide rails are in a high-precision linear sliding fit to ensure smooth lifting. A support plate mounting block is fixedly installed on one side of each slider. A lifting block is fixedly connected to the center of one side of the support plate mounting block. A threaded post is vertically threaded through the lifting block, and a worm gear is fixedly sleeved on the threaded post. The transmission component includes a motor, a transmission shaft, and a transmission belt. Worms are fixedly sleeved at both ends of the transmission shaft, meshing with the worm gear. A driven wheel is fixedly sleeved on the transmission shaft. The motor is mounted on the printer frame, and a driving wheel is fixedly sleeved at the motor output end. The driving wheel and the driven wheel are connected by a transmission belt.

[0005] Preferably, the two ends of the threaded column are rotatably mounted on the printer frame via bearings and bearing seats, and the two ends of the drive shaft are rotatably mounted on the printer frame via bearings and bearing seats.

[0006] Preferably, a lifting support plate is fixedly installed on one side of the support plate mounting block, and the top of the lifting support plate is fixedly connected to the nozzle trolley guide rail.

[0007] Preferably, two limit switches are arranged vertically on one side of the printer frame, and a trigger part is provided at the bottom of the lifting support plate of the lifting assembly near the limit switches to limit the highest and lowest positions of the printhead carriage guide rail.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] This invention features a clever structure. A motor drives the drive wheel, which in turn drives the driven wheel and drive shaft via a transmission belt. A worm gear meshes with a worm wheel, transmitting power to a threaded column. The rotation of the threaded column causes the lifting block to raise and lower the printhead carriage guide rail. This transmission method offers stable transmission ratios and high precision. Furthermore, the worm gear transmission has self-locking properties, preventing accidental slippage of the printhead carriage guide rail. The lifting components on both sides work synchronously. Through the cooperation of two slider guide rails and the sliders, the printhead carriage guide rail remains horizontal during lifting, preventing tilting that could affect printing accuracy. The limit switches and trigger mechanism accurately limit the highest and lowest positions of the printhead carriage guide rail, preventing excessive lifting and lowering that could damage the equipment, thus improving equipment safety and reliability. Attached Figure Description

[0010] Figure 1 This is a side view of the three-dimensional structure of the present invention;

[0011] Figure 2 This is a schematic diagram showing the connection between the lifting assembly and the drive assembly of this utility model;

[0012] Figure 3 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 4 This utility model Figure 3 The right view.

[0014] In the diagram: 1. Printer frame; 2. Printhead carriage guide rail; 3. Lifting support plate; 4. Motor; 5. Drive shaft; 6. Worm gear; 7. Slider guide rail; 8. Slider; 9. Support plate mounting block; 10. Worm gear; 11. Threaded column; 12. Lifting block; 13. Driving wheel; 14. Driven wheel; 15. Drive belt; 16. Limit switch; 17. Trigger unit. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1 to 4 This utility model provides a technical solution: a lifting structure for a UV printer beam, including a printer frame 1 and a printhead carriage guide rail 2. Lifting components are arranged on two parallel sides of the printer frame 1. A transmission component is installed on the printer frame 1. The lifting components include two slider guide rails 7, each with a slider 8 slidably connected to it. The slider 8 and the slider guide rails 7 have a high-precision linear sliding fit to ensure the smoothness of the lifting process. A support plate mounting block 9 is fixedly installed on one side of each of the two sliders 8. A lifting block 12 is fixedly connected to the center of one side of the support plate mounting block 9. A threaded post 11 is vertically threaded through the lowering block 12, and a worm gear 10 is fixedly sleeved on the threaded post 11. The transmission assembly includes a motor 4, a transmission shaft 5, and a transmission belt 15. The transmission belt 15 is a synchronous belt to ensure that there is no slippage when the driving wheel 13 and the driven wheel 14 are driven, resulting in more precise transmission. Worms 6 are fixedly sleeved at both ends of the transmission shaft 5, and the worms 6 mesh with the worm gear 10. The driven wheel 14 is fixedly sleeved on the transmission shaft 5. The motor 4 is mounted on the printer frame 1, and the output end of the motor 4 is fixedly sleeved on the driving wheel 13. The driving wheel 13 and the driven wheel 14 are connected by the transmission belt 15.

[0017] Furthermore, the two ends of the threaded column 11 are rotatably mounted on the printer frame 1 via bearings and bearing seats, and the two ends of the drive shaft 5 are rotatably mounted on the printer frame 1 via bearings and bearing seats.

[0018] Furthermore, a lifting support plate 3 is fixedly installed on one side of the support plate mounting block 9, and the top of the lifting support plate 3 is fixedly connected to the nozzle trolley guide rail 2.

[0019] Furthermore, two limit switches 16 are arranged vertically on one side of the printer frame 1, and a trigger part 17 is provided at the bottom of the lifting support plate 3 of the lifting assembly near the limit switch 16 to limit the highest and lowest positions of the printhead carriage guide rail 2.

[0020] The working process of this utility model is as follows:

[0021] like Figure 1 - Figure 4As shown, in actual use, motor 5 is controlled by a servo controller. When motor 4 starts, the drive wheel 13 at its output end rotates, driving the driven wheel 14 through the transmission belt 15, causing the transmission shaft 5 to rotate. The worm gears 6 at both ends of the transmission shaft 5 rotate accordingly, meshing with the worm wheel 10, driving the threaded column 11 to rotate. Since the threaded column 11 and the lifting block 12 are threadedly connected, when the threaded column 11 rotates, the lifting block 12 moves up and down along the threaded column 11. The lifting block 12 drives the support plate mounting block 9, the lifting support plate 3, and the printhead carriage guide rail 2 to rise and fall synchronously. The lifting components on both sides work together to ensure that the printhead carriage guide rail 2 rises and falls smoothly. When the printhead carriage guide rail 2 rises and falls to the set position, the trigger part 17 touches the limit switch 16, the motor 4 stops working, and the printhead carriage guide rail 2 is limited to continue rising and falling, avoiding excessive rising and falling and damaging the equipment. This achieves precise rising and falling of the printhead carriage guide rail 2 within the set range, meeting the different printing needs of the UV printer.

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lifting structure for the crossbeam of a UV printer, characterized in that: The printer includes a printer frame (1) and a printhead carriage guide rail (2). Lifting components are provided on both parallel sides of the printer frame (1). A transmission component is provided on the printer frame (1). The lifting components include two slider guide rails (7), each with a slider (8) slidably connected to it. A support plate mounting block (9) is fixedly installed on one side of each slider (8). A lifting block (12) is fixedly connected to the center of one side of the support plate mounting block (9). A threaded post (11) is vertically threaded through the lifting block (12). The threaded column (11) is fixedly fitted with a worm gear (10). The transmission assembly includes a motor (4), a transmission shaft (5) and a transmission belt (15). Worms (6) are fixedly fitted at both ends of the transmission shaft (5). The worms (6) mesh with the worm gear (10). A driven wheel (14) is fixedly fitted on the transmission shaft (5). The motor (4) is mounted on the printer frame (1). The output end of the motor (4) is fixedly fitted with a driving wheel (13). The driving wheel (13) and the driven wheel (14) are connected by a transmission belt (15).

2. The lifting structure of the UV printer beam according to claim 1, characterized in that: The two ends of the threaded column (11) are rotatably mounted on the printer frame (1) via bearings and bearing seats.

3. The lifting structure of the UV printer beam according to claim 2, characterized in that: A lifting support plate (3) is fixedly installed on one side of the support plate mounting block (9), and the top of the lifting support plate (3) is fixedly connected to the nozzle trolley guide rail (2).

4. The lifting structure of the UV printer beam according to claim 1, characterized in that: The drive shaft (5) is rotatably mounted on the printer frame (1) at both ends via bearings and bearing seats.

5. The lifting structure of the UV printer beam according to claim 1, characterized in that: Two limit switches (16) are arranged vertically on one side of the printer frame (1). A trigger part (17) is provided at the bottom of the lifting support plate (3) of the lifting assembly near the limit switch (16) to limit the highest and lowest positions of the printhead carriage guide rail (2).

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