Ultraviolet ink-jet printer

Abstract

The invention provides an ultraviolet ink-jet printer which comprises a rack, a loading and unloading mechanism, a printing mechanism, a first bearing table and a second bearing table, and the rack comprises a first track and a second track; the rack comprises a loading and unloading station corresponding to the loading and unloading mechanism and a printing station corresponding to the printing mechanism; the first bearing table and the second bearing table are both used for bearing a to-be-printed piece, and the first bearing table is connected with the first track; the second bearing table is connected with the second track; the first track comprises a first waiting station located between the loading and unloading station and the printing station, and when the first bearing table stays at the first waiting station, the second bearing table can reciprocate between the loading and unloading station and the printing station along the first track; the second track comprises a second waiting station located between the loading and unloading station and the printing station, and when the second bearing table stays at the second waiting station, the first bearing table can reciprocate between the loading and unloading station and the printing station along the first track.

Description

Technical Field

[0001] The present application relates to the field of printing technology, and more specifically to an ultraviolet inkjet printer. Background Art

[0002] Ultraviolet (UV) printing technology refers to a printing process that uses ultraviolet light to dry and cure ink. Printers using ultraviolet printing technology can be called ultraviolet printers, ultraviolet inkjet printers or flatbed printers.

[0003] The process of UV printing technology includes: inkjet printing the ink containing photosensitizer onto the material to be printed, curing it through LED or mercury lamp, so as to quickly complete the drying and curing of the ink. This UV printing technology is not limited by materials and is suitable for color photo-level printing on the surface of various materials. It does not require plate making and can be printed in one go. It has bright and rich colors, is wear-resistant, and is UV-resistant. For example, it can be printed on surfaces such as wood, glass, various signs, crystal, PVC, acrylic, metal, plastic, stone, leather, etc.

[0004] As UV printing technology is gradually accepted by users in the field of certificate and card making, users' requirements for printing speed have begun to gradually increase, and there is an urgent need for low-cost UV printers that can print at high speed. Summary of the invention

[0005] The present application provides an ultraviolet inkjet printer, which can improve printing efficiency.

[0006] The ultraviolet inkjet printer provided in this application includes: including:

[0007] A frame, comprising a first rail and a second rail;

[0008] A loading and unloading mechanism is installed on the frame, and the frame includes a loading and unloading station corresponding to the loading and unloading mechanism;

[0009] A printing mechanism, mounted on the frame, wherein the frame includes a printing station corresponding to the printing mechanism;

[0010] A first carrying platform, used for carrying a workpiece to be printed, wherein the first carrying platform is connected to the first track;

[0011] A second carrying platform, used for carrying the workpiece to be printed, wherein the second carrying platform is connected to the second track;

[0012] Wherein, the first track includes a first waiting station, the first waiting station is located between the loading and unloading station and the printing station, and when the first carrier stays at the first waiting station, the second carrier can reciprocate between the loading and unloading station and the printing station along the first track;

[0013] The second track includes a second waiting station, which is located between the loading and unloading station and the printing station. When the second carrier platform stays at the second waiting station, the first carrier platform can reciprocate between the loading and unloading station and the printing station along the first track.

[0014] In one embodiment, the loading and unloading mechanism and the printing mechanism are distributed in the longitudinal direction, the first track and the second track both extend in the longitudinal direction, and the first track and the second track are spaced apart in the transverse direction; wherein, in the height direction, the first support platform is at a first height relative to the frame at the first waiting station, the loading and unloading station and the printing station, the second support platform is at the first height relative to the frame at the loading and unloading station and the printing station, the second support platform is at a second height at the second waiting station, and the second height is lower or higher than the first height.

[0015] In one embodiment, the number of the first rails is two, and both ends of the first supporting platform are respectively connected to the two first rails; the second rail is located between the two first rails, and the second height is lower than the first height.

[0016] In one embodiment, the ultraviolet inkjet printer also includes a controller, and a first drive unit and a second drive unit electrically connected to the controller, and the loading and unloading mechanism and the printing mechanism are both electrically connected to the controller; the controller controls the first carrier to move along the first track through the first drive unit, and the controller controls the second carrier to move along the second track through the second drive unit, and when the first carrier or the second carrier reaches the loading and unloading station, the controller also controls the loading and unloading mechanism to unload the printed parts on the first carrier or the second carrier, and load the parts to be printed on the first carrier or the second carrier; when the first carrier or the second carrier reaches the printing station, the controller also controls the printing mechanism to perform a printing operation on the parts to be printed carried by the first carrier or the second carrier located at the printing station.

[0017] In one embodiment, the ultraviolet inkjet printer also includes a first sensing component and a second sensing component, and the first sensing component and the second sensing component are both electrically connected to the controller; the first sensing component is used to sense whether the first carrier platform has arrived at the loading and unloading station, the first waiting station or the printing station, and sends a first loading and unloading arrival signal, a first waiting arrival signal and a first printing arrival signal to the controller when arriving; the second sensing component is used to sense whether the second carrier platform has arrived at the loading and unloading station, the second waiting station or the printing station, and sends a second loading and unloading arrival signal, a second waiting arrival signal and a second printing arrival signal to the controller when arriving; the controller controls the loading and unloading mechanism to unload the printed parts and load the parts to be printed according to the first loading and unloading arrival signal or the second loading and unloading arrival signal; and the controller controls the printing mechanism to perform a printing operation according to the first printing arrival signal or the second printing arrival signal.

[0018] In one embodiment, the loading and unloading mechanism includes a monitor. When the first carrier and the second carrier are located at the loading and unloading station, the monitor is used to monitor whether the carrier carries the work to be printed or the printed work, and generate a feedback signal. The controller is electrically connected to the monitor. The controller determines whether the work to be printed has been loaded on the carrier according to the feedback signal of the monitor, and controls the first carrier or the second carrier to leave the loading and unloading station after confirming that the work to be printed has been loaded on the carrier.

[0019] In one embodiment, the first load platform includes at least two load positions, the at least two load positions are sequentially spaced apart in the transverse direction, the first load platform is the same as the second load platform, and the monitor corresponds to the load positions one by one; the loading and unloading mechanism also includes a delivery member, a pickup member and a toggle member, the delivery member and the pickup member are distributed on opposite sides of the loading and unloading station in the transverse direction, the at least two load positions include a first load position adjacent to the delivery member and a second load position adjacent to the pickup member; the pickup member can pick up the printed piece on the second load position, and the delivery member can deliver the piece to be printed to the first load position; the toggle member includes a driving roller, a driven roller, a synchronous belt and a toggle The driving roller and the driven roller are spaced apart in the lateral direction, and the central axes of the driving roller and the driven roller extend in the height direction. The synchronous belt is sleeved on the driving roller and the driven roller. The paddle is arranged on the synchronous belt. There are multiple paddles and they are evenly spaced apart in the lateral direction. The spacing between adjacent paddles is equal to the lateral dimension of the carrying position. The paddle moves with the synchronous belt to move the printed part or the part to be printed at the carrying position toward the pickup part. When the first carrying platform or the second carrying platform is located at the loading and unloading station, the paddle facing the loading and unloading station corresponds to the carrying position one by one to simultaneously move the printed part or the part to be printed at each of the carrying positions.

[0020] In one embodiment, the delivery member may include a first upper roller and a first lower roller spaced apart along the height direction, and the work to be printed can be clamped between the upper roller and the lower roller; and / or, the pickup member may include a second upper roller and a second lower roller spaced apart along the height direction, and the printed work can be clamped between the second upper roller and the second lower roller.

[0021] In one embodiment, the ultraviolet inkjet printer also includes a positioning mechanism, which is installed on the frame, and the positioning mechanism includes a first positioning member and a second positioning member; the first carrier includes a carrier groove, a first opening and a second opening, the carrier groove and the work to be printed correspond one to one, the carrier groove includes a bottom wall and two side walls spaced apart in the longitudinal direction, the work to be printed is accommodated between the two side walls, the carrier groove is located between two adjacent second openings, the first opening is located between two adjacent second openings, and the opening direction of the first opening and the opening direction of the second opening are both toward the printing mechanism; the first carrier is the same as the second carrier; when the first carrier or the second carrier reaches the printing station, the first positioning member is inserted into the first opening, and the second positioning member is inserted into the second opening, and the work to be printed is jointly positioned by the first positioning member, the second positioning member and the side wall of the carrier groove.

[0022] In one embodiment, the positioning mechanism includes a mechanical arm extending in the transverse direction, the first positioning member includes a first elastic member, one end of the first elastic member is connected to the mechanical arm, and the first elastic member can be elastically deformed in the longitudinal direction; and / or, the second positioning member includes a second elastic member, one end of the second elastic member is connected to the mechanical arm, and the second elastic member can be elastically deformed in the transverse direction.

[0023] Through the technical solution of the embodiment of the present application, the first rail and the second rail can be used to make the first carrier and the second carrier move alternately. When the first carrier is in the printing process, the second carrier moves to the loading and unloading station to complete the unloading of the printed parts and the loading of the parts to be printed. Alternatively, when the second carrier is in the printing process, the first carrier moves to the loading and unloading station to complete the unloading of the printed parts and the loading of the parts to be printed. In this way, the loading and unloading time before printing can be saved and the printing efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the prior art description. By reading the detailed description of the following implementation, the advantages and benefits of the solutions become clear to those skilled in the art. The drawings are only used to illustrate the preferred implementation and are not considered to be limitations of the present application. In the drawings:

[0025] Figure 1 A three-dimensional schematic diagram of an ultraviolet inkjet printer provided in some embodiments of the present application is shown.

[0026] Figure 2 A partial stereoscopic schematic diagram of an ultraviolet inkjet printer provided in some embodiments of the present application is shown.

[0027] Figure 3 Another partial three-dimensional schematic diagram of an ultraviolet inkjet printer provided by some embodiments of the present application is shown, in which the second supporting platform is hidden.

[0028] Figure 4 A three-dimensional schematic diagram of a second track in an ultraviolet inkjet printer provided in some embodiments of the present application is shown.

[0029] Figure 5 A three-dimensional schematic diagram of a positioning mechanism and a first carrier platform in an ultraviolet inkjet printer provided in an embodiment of the present application is shown.

[0030] [HXJKJD241009][HS2411227CCN]

[0031] Reference numerals:

[0032] 11-first track, 12-second track, 121-loading and unloading section, 122-printing section, 123-waiting section, 124-slope section;

[0033] 20-loading and unloading mechanism, 21-monitor, 22-delivery member, 23-intake member, 24-push member, 241-driving roller, 242-driven roller, 243-synchronous belt, 244-push piece;

[0034] 30- Printing mechanism,

[0035] 40 - first bearing platform, 41 - first opening, 42 - second opening, 43 - bearing groove, 431 - side wall;

[0036] 50- second bearing platform,

[0037] 60-positioning mechanism, 61-first positioning member, 62-second positioning member, 63-mechanical arm, 64-mechanical finger;

[0038] K1-loading and unloading station, K2-printing station, D1-first waiting station, D2-second waiting station. DETAILED DESCRIPTION

[0039] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0040] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0041] refer to Figure 1The present application provides an ultraviolet inkjet printer, including a frame, a loading and unloading mechanism 20, a printing mechanism 30, a first carrier 40 and a second carrier 50, the frame including a first track 11 and a second track 12; the loading and unloading mechanism 20 is installed on the frame, and the frame includes a loading and unloading station corresponding to the loading and unloading mechanism 20; the printing mechanism 30 is installed on the frame, and the frame includes a printing station corresponding to the printing mechanism 30; the first carrier 40 is used to carry a workpiece to be printed, and the first carrier 40 is connected to the first track 11; the second carrier 50 is used to carry a workpiece to be printed, and the second carrier 50 is used to carry a workpiece to be printed. 50 is connected to the second track 12; wherein, the first track 11 includes a first waiting station, which is located between the loading and unloading station and the printing station, and when the first carrier 40 stays at the first waiting station, the second carrier 50 can reciprocate between the loading and unloading station and the printing station along the first track 11; the second track 12 includes a second waiting station, which is located between the loading and unloading station and the printing station, and when the second carrier 50 stays at the second waiting station, the first carrier 40 can reciprocate between the loading and unloading station and the printing station along the first track 11.

[0042] in, Figure 1 It is a schematic diagram of the first carrying platform 40 being located at the printing station K2 and the second carrying platform 50 being located at the loading and unloading station K1.

[0043] Through the above technical solution, the first rail 11 and the second rail 12 can be used to make the first carrier 40 and the second carrier 50 move alternately. When the first carrier 40 is in the printing process, the second carrier 50 is moved to the loading and unloading station to complete the unloading of the printed parts and the loading of the parts to be printed. Alternatively, when the second carrier 50 is in the printing process, the first carrier 40 is moved to the loading and unloading station to complete the unloading of the printed parts and the loading of the parts to be printed. In this way, the loading and unloading time before printing can be saved and the printing efficiency can be improved.

[0044] Taking the case where the printing time is long and the loading and unloading time is short as an example, when using the above-mentioned ultraviolet inkjet printer, the specific movement process of the first carrier 40 and the second carrier 50 can be referred to as follows:

[0045] S1, the first carrier 40 loads the workpiece to be printed at the loading and unloading station K1 through the loading and unloading structure, and moves from the loading and unloading station K1 to the printing station K2 after completion. During this process, the second carrier 50 is located at the second waiting station D2;

[0046] S2, during the process of printing the workpiece to be printed on the first carrier 40 by the printing mechanism 30, the second carrier 50 moves from the second waiting station D2 to the loading and unloading station K1, and returns to the second waiting station D2 after loading the workpiece to be printed by the loading and unloading structure;

[0047] S3, after printing is completed, the first carrier 40 moves from the printing station K2 to the loading and unloading station K1, and the second carrier 50 moves from the second waiting station D2 to the printing station K2;

[0048] S4, during the process of printing the workpiece to be printed on the second carrier 50 by the printing mechanism 30, the first carrier 40 loads the workpiece to be printed at the loading and unloading station K1 through the loading and unloading structure, and moves from the loading and unloading station K1 to the first waiting station D1 after completion;

[0049] S5, after printing is completed, the second carrier 50 moves from the printing station K2 to the loading and unloading station K1, and then the first carrier 40 moves from the first waiting station D1 to the printing station K2;

[0050] S6, during the process of printing the workpiece to be printed on the first carrier 40 by the printing mechanism 30, the second carrier 50 returns to the second waiting station D2 after loading the workpiece to be printed by the loading and unloading structure at the loading and unloading station K1;

[0051] Then, steps S3, S4, S5, and S6 are repeated cyclically.

[0052] refer to Figure 1 In a possible implementation, the loading and unloading mechanism 20 and the printing mechanism 30 are distributed in the longitudinal direction, the first track 11 and the second track 12 both extend in the longitudinal direction, and the first track 11 and the second track 12 are spaced apart in the transverse direction; wherein, in the height direction, the first carrier 40 is at a first height relative to the frame when it is at the first waiting station, the loading and unloading station, and the printing station, the second carrier 50 is at a first height relative to the frame when it is at the loading and unloading station and the printing station, and the second carrier 50 is at a second height when it is at the second waiting station, and the second height is lower or higher than the first height; the height direction, the transverse direction, and the longitudinal direction are perpendicular to each other.

[0053] It can be seen from the above technical solution that by making the second height lower or higher than the first height, on the one hand, it can be achieved that when the first carrier 40 is located at the first waiting station, the second carrier 50 can move smoothly along the second track 12 to reach the loading and unloading station or the printing station without being affected by the first carrier 40; or, when the second carrier 50 is located at the second waiting station, the first carrier 40 can move smoothly along the first track 11 to reach the loading and unloading station or the printing station without being affected by the second carrier 50. On the other hand, the movement path of the first carrier 40 and the movement path of the second carrier 50 can be overlapped to reduce the volume of the printer.

[0054] In one embodiment, there are two first rails 11, and both ends of the first carrier 40 are connected to the two first rails 11 respectively; the second rail 12 is located between the two first rails 11, and the second height is lower than the first height. In this way, when the second carrier 50 is located at the second waiting position, the first carrier 40 can pass from above the second carrier 50, or when the first carrier 40 is located at the first waiting position, the second carrier 50 can pass from below the first carrier 40. Moreover, the first carrier 40 can move more stably along the first rail 11 through the limitation of the two first rails 11.

[0055] For example, the first carrying platform 40 and the first track 11 are connected in a sliding manner, or the first carrying platform 40 and the first track 11 are connected in a rolling manner.

[0056] In one example, reference Figure 4 The second track 12 includes a loading and unloading section 121, a printing section 122, a waiting section 123 and a slope section 124. The loading and unloading section 121, the printing section 122 and the waiting section 123 all extend in the longitudinal direction. The loading and unloading section 121 and the printing section 122 are at the same height relative to the frame. The height of the waiting section 123 relative to the frame is lower than the height of the loading and unloading section 121 relative to the frame. One end of the waiting section 123 is connected to the loading and unloading section 121 through the slope section 124, and the other end is connected to the printing section 122 through the slope section 124. The second carrier 50 can reach the loading and unloading station only after it reaches the loading and unloading section 121 from the second waiting station via the slope section 124, and can reach the printing station only after it reaches the printing section 122 from the second waiting station via the slope section 124.

[0057] In one example, there are two second rails 12, which are spaced apart in the lateral direction, and both ends of the second carrier 50 are connected to the two second rails 12. In this way, the second carrier 50 can move along the second rails 12 more stably through the limitation of the two second rails 12.

[0058] For example, the second carrying platform 50 and the second rail 12 are connected in a sliding manner, or the second carrying platform 50 and the second rail 12 are connected in a rolling manner.

[0059] In a possible implementation, the ultraviolet inkjet printer also includes a controller, and a first drive unit and a second drive unit electrically connected to the controller, and the loading and unloading mechanism 20 and the printing mechanism 30 are both electrically connected to the controller; the controller controls the first carrier 40 to move along the first track 11 through the first drive unit, and the controller controls the second carrier 50 to move along the second track 12 through the second drive unit, and when the first carrier 40 or the second carrier 50 arrives at the loading and unloading station, the controller also controls the loading and unloading mechanism 20 to unload the printed parts on the first carrier 40 or the second carrier 50, and load the parts to be printed on the first carrier 40 or the second carrier 50; when the first carrier 40 or the second carrier 50 arrives at the printing station, the controller also controls the printing mechanism 30 to perform a printing operation on the parts to be printed carried by the first carrier 40 or the second carrier 50 located at the printing station.

[0060] It can be seen from the above technical solution that the controller can automatically control the first carrier 40 to move along the first track 11, and automatically control the second carrier 50 to move along the second track 12, and can automatically control the loading and unloading mechanism 20 to perform loading and unloading operations, and control the printing mechanism 30 to perform printing operations, which is conducive to improving printing efficiency.

[0061] In a specific embodiment, the controller sends a loading and unloading instruction to the loading and unloading mechanism 20 when the first carrier 40 or the second carrier 50 arrives at the loading and unloading station, and sends a printing instruction to the printing mechanism 30 when the first carrier 40 or the second carrier 50 arrives at the printing station. According to the loading and unloading instruction, the loading and unloading mechanism 20 unloads the printed workpiece from the first carrier 40 or the second carrier 50 located at the loading and unloading station, and loads the workpiece to be printed on the first carrier 40 or the second carrier 50 located at the loading and unloading station. After the workpiece to be printed has been loaded, the controller controls the first carrier 40 or the second carrier 50 to leave the loading and unloading station. According to the printing instruction, the printing mechanism 30 performs a printing operation on the workpiece to be printed carried by the first carrier 40 or the second carrier 50 located at the printing station, and after completing the printing operation, sends a printing completion signal to the controller, and the controller controls the first carrier 40 or the second carrier 50 to leave the printing station according to the printing completion signal.

[0062] Based on the above technical solution, it can be known that after receiving the loading and unloading completion signal, the controller can control the first carrier 40 to move from the loading and unloading station to the first waiting station, and after judging that the second carrier 50 has arrived at the second waiting station from the printing station, the first carrier 40 can be controlled to continue to move from the first waiting station to the printing station. Alternatively, after receiving the loading and unloading completion signal, the controller can control the second carrier 50 to move from the loading and unloading station to the second waiting station, and after judging that the first carrier 40 has arrived at the first waiting station from the printing station, the second carrier 50 can be controlled to continue to move from the second waiting station to the printing station.

[0063] Similarly, after receiving the print completion signal, the controller can control the first carrier 40 to move from the print station to the first waiting station, and after determining that the second carrier 50 has arrived at the second waiting station from the loading and unloading station, the first carrier 40 can be controlled to continue to move from the first waiting station to the loading and unloading station. Alternatively, after receiving the print completion signal, the controller can control the second carrier 50 to move from the print station to the second waiting station, and after determining that the first carrier 40 has arrived at the first waiting station from the loading and unloading station, the second carrier 50 can be controlled to continue to move from the second waiting station to the loading and unloading station.

[0064] In a possible embodiment, in order to accurately determine the positions of the first carrier 40 and the second carrier 50, so that the controller can accurately control the movement of the first carrier 40 and the second carrier 50. The ultraviolet inkjet printer provided in the present application also includes a first sensing component and a second sensing component, and the first sensing component and the second sensing component are both electrically connected to the controller; the first sensing component is used to sense whether the first carrier 40 has reached the loading and unloading station, the first waiting station or the printing station, and sends the first loading and unloading arrival signal, the first waiting arrival signal and the first printing arrival signal to the controller respectively when arriving; the second sensing component is used to sense whether the second carrier 50 has reached the loading and unloading station, the second waiting station or the printing station, and sends the second loading and unloading arrival signal, the second waiting arrival signal and the second printing arrival signal to the controller respectively when arriving; the controller generates and controls the loading and unloading mechanism 20 to unload the printed parts and load the parts to be printed according to the first loading and unloading arrival signal or the second loading and unloading arrival signal; and the controller controls the printing mechanism 30 to implement the printing operation according to the first printing arrival signal or the second printing arrival signal.

[0065] Obviously, the first loading and unloading arrival signal represents that the first carrier 40 has arrived at the loading and unloading station, and the second loading and unloading arrival signal represents that the second carrier 50 has arrived at the loading and unloading station. The first waiting arrival signal represents that the first carrier 40 has arrived at the first waiting station, and the second waiting arrival signal represents that the second carrier 50 has arrived at the second waiting station. The first printing arrival signal represents that the first carrier 40 has arrived at the printing station, and the second printing arrival signal represents that the second carrier 50 has arrived at the printing station. Therefore, the controller can accurately determine the positions of the first carrier 40 and the second carrier 50, so that the movement of the first carrier 40 and the second carrier 50 can be controlled in an orderly manner.

[0066] In a specific embodiment, the controller can generate a loading and unloading instruction according to the first loading and unloading arrival signal or the second loading and unloading arrival signal, and generate a printing instruction according to the first printing arrival signal and the second printing arrival signal. In this way, the loading and unloading mechanism 20 executes the loading and unloading instruction to complete the unloading of the printed workpiece and the loading and unloading of the workpiece to be printed. The printing mechanism 30 executes the printing instruction to perform a printing operation on the workpiece to be printed carried by the first carrier 40 or the second carrier 50 located at the printing station.

[0067] In one example, the first sensing component may include three position sensors, which are respectively arranged on the first track 11 and correspond to the loading and unloading station, the first waiting station, and the printing station respectively. When the first carrier 40 arrives at the loading and unloading station, the corresponding position sensor sends a first loading and unloading arrival signal to the controller. When the first carrier 40 arrives at the first waiting station, the corresponding position sensor sends a first waiting arrival signal to the controller. When the first carrier 40 arrives at the printing station, the corresponding position sensor sends a first printing arrival signal to the controller.

[0068] Similarly, in one example, the second sensing component may include three position sensors, which are respectively arranged on the second track 12 and correspond to the loading and unloading station, the second waiting station, and the printing station. When the second carrier 50 arrives at the loading and unloading station, the corresponding position sensor sends a second loading and unloading arrival signal to the controller. When the second carrier 50 arrives at the second waiting station, the corresponding position sensor sends a second waiting arrival signal to the controller. When the second carrier 50 arrives at the printing station, the corresponding position sensor sends a second printing arrival signal to the controller.

[0069] In one possible embodiment, reference Figure 2 and Figure 3 The loading and unloading mechanism 20 includes a monitor 21. When the first carrier 40 and the second carrier 50 are located at the loading and unloading station, the monitor 21 is used to monitor whether there are to-be-printed or printed parts on the carrier, and generate a feedback signal; the controller is electrically connected to the monitor 21. The controller determines whether the to-be-printed parts have been loaded on the carrier according to the feedback signal of the monitor 21, and controls the first carrier 40 or the second carrier 50 to leave the loading and unloading station after confirming that the to-be-printed parts have been loaded on the carrier. In this way, the monitor 21 is helpful to accurately determine whether the loading of the to-be-printed parts has been completed, so that the controller can timely and accurately control the first carrier 40 or the second carrier 50 to leave the loading and unloading station. At this time, the first carrier 40 leaving the loading and unloading station can reach the first waiting station, or directly reach the printing station. At this time, the first carrier 40 leaving the loading and unloading station can reach the second waiting station, or directly reach the printing station.

[0070] In one example, the monitor 21 may include an infrared sensor, which can monitor whether the carrier located at the loading and unloading station carries the to-be-printed or printed parts. When the carrier does not carry the to-be-printed or printed parts, an empty signal can be fed back to the controller, and when the carrier carries the to-be-printed or printed parts, a load signal can be fed back to the controller. For example, when the first carrier 40 reaches the loading and unloading position, it carries the printed parts. The controller will first receive the first loading and unloading arrival signal, and then receive the load signal sent by the monitor 21; then the printed parts are unloaded, and the controller will receive the empty signal; then the to-be-printed parts are loaded, and the controller will receive the load signal. Based on the first loading and unloading arrival signal, and the alternating load signal and empty signal, the controller can confirm that the loading and unloading mechanism 20 has completed the unloading of the printed parts and the loading of the to-be-printed parts.

[0071] In the printer provided by the present application, the first carrier 40 includes at least two carrying positions, at least two carrying positions are sequentially spaced and distributed in the transverse direction, the first carrier 40 is the same as the second carrier 50, and the monitor 21 corresponds to the carrying position one by one. In this way, each carrier can carry at least two pieces to be printed at the same time, that is, one carrying position can carry one piece to be printed, which is conducive to improving printing efficiency. By making the monitor 21 correspond to the carrying position one by one, it is convenient for the controller to determine whether all the carrying positions on the carrier have carried the pieces to be printed.

[0072] For further reference, Figure 3 The loading and unloading mechanism 20 further includes a delivery member 22, a pickup member 23 and a toggle member 24. The delivery member 22 and the pickup member 23 are distributed on opposite sides of the loading and unloading station in the transverse direction. The at least two carrying positions include a first carrying position adjacent to the delivery member 22 and a second carrying position adjacent to the pickup member 23. The pickup member 23 can pick up the printed piece at the second carrying position, and the delivery member 22 can deliver the piece to be printed to the first carrying position. The toggle member 24 includes a driving roller 241, a driven roller 242, a synchronous belt 243 and a paddle 244. The driving roller 241 and the driven roller 242 are spaced apart in the lateral direction, and the central axes of the driving roller 241 and the driven roller 242 extend in the height direction. The synchronous belt 243 is sleeved on the driving roller 241 and the driven roller 242. The paddle 244 is arranged on the synchronous belt 243. There are multiple paddles 244 and they are evenly spaced apart in the lateral direction. The spacing between adjacent paddles 244 is equal to the size of the bearing position in the lateral direction. The paddle 244 moves with the synchronous belt 243 to toggle the printed or to-be-printed pieces located at the bearing position toward the pickup member 23. When the first bearing platform 40 or the second bearing platform 50 is located at the loading and unloading station, the paddle 244 facing the loading and unloading station corresponds to the bearing position one by one to toggle the printed or to-be-printed pieces at each bearing position at the same time.

[0073] Obviously, based on this technical solution, the paddle 244 can paddle the printed piece toward the pickup member 23 so that the printed piece is picked up by the pickup member 23 and leaves the carrying platform. The paddle 244 can also paddle the piece to be printed on the first carrying position toward the second carrying position so that the first carrying position continues to carry the next piece to be printed delivered by the delivery member 22.

[0074] For example, the first carrier 40 may include three bearing positions, namely, the first bearing position, the middle bearing position, and the second bearing position. At this time, the synchronous belt 243 may be rotated by one beat first, and the paddle 244 may paddle the printed piece on the second bearing position so that it may be picked up by the pickup member 23. At the same time, the printed piece on the middle bearing position moves to the second bearing position under the paddle action of another paddle 244, and the printed piece on the first bearing position moves to the middle bearing position under the paddle action of another paddle 244. At this time, the first bearing position is idle, and the delivery member 22 may be used to deliver the piece to be printed to the first bearing position, and then the synchronous belt 243 may be rotated to the next connecting piece, and as the paddle 244 is paddled, the printed piece on the second bearing position is picked up by the pickup member 23 again, and the first bearing position is idle again, and then the delivery member 22 may be used to deliver the piece to be printed to the first bearing position, and in this way, all the printed pieces may be unloaded, and each bearing position on the first carrier 40 may be loaded with the piece to be printed. Obviously, loading and unloading can be carried out simultaneously, which is conducive to improving loading and unloading efficiency.

[0075] In a possible embodiment, the delivery member 22 may include a first upper roller and a first lower roller spaced apart in the height direction, and the workpiece to be printed can be clamped between the upper roller and the lower roller. In this way, the purpose of transporting the workpiece to be printed can be achieved by making the first upper roller and the first lower roller rotate in opposite directions.

[0076] In one example, the first upper roller and the first lower roller are the same size.

[0077] In an example, there may be a plurality of first upper rollers, the number of first lower rollers and the number of first upper rollers may be the same, and the first upper rollers and the first lower rollers may correspond to each other in the height direction.

[0078] In a possible embodiment, the pickup member 23 may include a second upper roller and a second lower roller spaced apart in the height direction, and the printed piece can be clamped between the second upper roller and the second lower roller. In this way, the purpose of picking up the printed piece can be achieved by making the second upper roller and the second lower roller rotate in opposite directions.

[0079] In one example, the second upper roller and the second lower roller are the same size.

[0080] In an example, the number of the second upper rollers may be multiple, the number of the second lower rollers may be the same as the number of the second upper rollers, and the second upper rollers and the second lower rollers may correspond to each other in the height direction.

[0081] To ensure smooth loading of the workpiece to be printed, the lateral and longitudinal dimensions of the loading slot 43 must be larger than the corresponding dimensions of the workpiece to be printed. However, this will result in a greater positioning accuracy of the workpiece to be printed, and inaccurate positioning of printed fonts or patterns may occur during printing. In order to solve this problem, in a possible implementation, the ultraviolet inkjet printer also includes a positioning mechanism 60, which is installed on the frame, and the positioning mechanism 60 includes a first positioning member 61 and a second positioning member 62; the first carrier 40 includes a bearing groove 43, a first opening 41 and a second opening 42, the bearing groove 43 and the workpiece to be printed correspond one to one, the bearing groove 43 includes a bottom wall and two side walls 431 spaced apart in the longitudinal direction, the workpiece to be printed is accommodated between the two side walls 431, the bearing groove 43 is located between two adjacent second openings 42, the first opening 41 is located between two adjacent second openings 42, and the opening direction of the first opening 41 and the opening direction of the second opening 42 are both toward the printing mechanism 30; the first carrier 40 and the second carrier 50 are the same; when the first carrier 40 or the second carrier 50 arrives at the printing station, the first positioning member 61 is inserted into the first opening 41, and the second positioning member 62 is inserted into the second opening 42, and the workpiece to be printed is jointly positioned by the first positioning member 61, the second positioning member 62 and the side wall 431 of the bearing groove 43.

[0082] Through the above technical solution, by inserting the second positioning member 62 into the second opening 42, the position of the workpiece to be printed in the horizontal direction can be adjusted, the gap can be eliminated, and the positioning of the workpiece to be printed in the horizontal direction can be more accurate. By inserting the first positioning member 61 into the first opening 41, the position of the workpiece to be printed in the vertical direction can be adjusted, the gap can be eliminated, and the positioning of the workpiece to be printed in the vertical direction can be more accurate.

[0083] In one embodiment, reference Figure 5 The positioning mechanism 60 includes a mechanical arm 63 extending in the transverse direction, and the first positioning member 61 includes a first elastic member, one end of which is connected to the mechanical arm 63, and the first elastic member can be elastically deformed in the longitudinal direction. In this way, the first elastic member and the side wall 431 of the bearing groove 43 can cooperate with each other to clamp the workpiece to be printed in the longitudinal direction to prevent the workpiece to be printed from moving in the longitudinal direction during the printing process.

[0084] The first elastic member may include a first section and a second section, the first section extends in the transverse direction, the two ends of the second section are respectively connected to the mechanical arm 63 and the first section, and the extension direction of the second section forms an acute angle with the first section and an acute angle with the mechanical arm 63. In this way, when the first section is pushed toward the mechanical arm 63, the second section may be elastically deformed, so that the first section moves toward the mechanical arm 63.

[0085] In one embodiment, the second positioning member 62 includes a second elastic member, one end of which is connected to the mechanical arm 63, and the second elastic member can be elastically deformed in the lateral direction. In this way, the two second elastic members on both sides of the bearing slot 43 can cooperate with each other to clamp the workpiece to be printed in the lateral direction to prevent the workpiece to be printed from moving in the lateral direction during the printing process.

[0086] The second positioning member 62 may further include a mechanical finger 64 connected to the mechanical arm 63, the mechanical finger 64 extending in the longitudinal direction, the second elastic member may include a third section and a fourth section, the third section extending in the longitudinal direction, the two ends of the fourth section respectively connected to the third section and the mechanical finger 64, the extension direction of the fourth section and the mechanical finger 64 are at an acute angle, and the fourth section is close to the loading and unloading station, and the third section is far away from the loading and unloading station. In this way, the fourth section has an inclined surface inclined relative to the longitudinal direction, and when the second positioning member 62 is inserted into the second opening 42, the inclined surface of the fourth section can play a guiding role, and the fourth section can be elastically deformed in the transverse direction, so that the third section moves toward the mechanical finger 64.

[0087] In addition, the positioning mechanism 60 provided in the present application can be fixed on the frame, and as the first carrier 40 or the second carrier 50 moves toward the printing station, the first opening 41 can be sleeved outside the first positioning member 61, and the second opening 42 can be sleeved outside the second positioning member 62. When the first carrier 40 or the second carrier 50 moves to the printing station, the first positioning member 61 and the second positioning member 62 can just complete the positioning of the workpiece to be printed.

[0088] It should be noted that, under the premise of no conflict, the various embodiments described in this application and / or the technical features in each embodiment can be arbitrarily combined with each other, and the technical solution obtained after the combination should also fall within the protection scope of this application.

[0089] It should be understood that the specific examples in the embodiments of the present application are only to help those skilled in the art to better understand the embodiments of the present application, rather than to limit the scope of the embodiments of the present application. Those skilled in the art can make various improvements and modifications based on the above embodiments, and these improvements or modifications all fall within the scope of protection of the present application.

[0090] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A UV inkjet printer, characterized in that: include: A frame, comprising a first rail (11) and a second rail (12); A loading and unloading mechanism (20) is installed on the frame, and the frame includes a loading and unloading station corresponding to the loading and unloading mechanism (20); A printing mechanism (30) is mounted on the frame, and the frame includes a printing station corresponding to the printing mechanism (30); A first carrying platform (40) is used to carry a workpiece to be printed, and the first carrying platform (40) is connected to the first track (11); A second carrying platform (50) is used to carry a workpiece to be printed, and the second carrying platform (50) is connected to the second track (12); The first track (11) includes a first waiting station, the first waiting station is located between the loading and unloading station and the printing station, and when the first carrier (40) stays at the first waiting station, the second carrier (50) can reciprocate along the first track (11) between the loading and unloading station and the printing station; The second track (12) includes a second waiting station, which is located between the loading and unloading station and the printing station. When the second carrier platform (50) stays at the second waiting station, the first carrier platform (40) can reciprocate between the loading and unloading station and the printing station along the first track (11).

2. The ultraviolet inkjet printer according to claim 1, characterized in that: The loading and unloading mechanism (20) and the printing mechanism (30) are distributed in the longitudinal direction, the first track (11) and the second track (12) both extend in the longitudinal direction, and the first track (11) and the second track (12) are distributed at intervals in the transverse direction; Wherein, in the height direction, the first support platform (40) is at a first height relative to the frame at the first waiting station, the loading and unloading station and the printing station, the second support platform (50) is at the first height relative to the frame at the loading and unloading station and the printing station, and the second support platform (50) is at a second height when at the second waiting station, and the second height is lower or higher than the first height.

3. The ultraviolet inkjet printer according to claim 2, characterized in that: The number of the first rails (11) is two, and the two ends of the first bearing platform (40) are respectively connected to the two first rails (11); The second track (12) is located between the two first tracks (11), and the second height is lower than the first height.

4. The ultraviolet inkjet printer according to claim 1, characterized in that: The ultraviolet inkjet printer further comprises a controller, and a first driving unit and a second driving unit electrically connected to the controller, and the loading and unloading mechanism (20) and the printing mechanism (30) are both electrically connected to the controller; The controller controls the first carrying platform (40) to move along the first track (11) through the first driving unit, and the controller controls the second carrying platform (50) to move along the second track (12) through the second driving unit. When the first carrier (40) or the second carrier (50) arrives at the loading and unloading station, the controller further controls the loading and unloading mechanism (20) to unload the printed work on the first carrier (40) or the second carrier (50), and to load the work to be printed on the first carrier (40) or the second carrier (50); When the first carrier (40) or the second carrier (50) arrives at the printing station, the controller also controls the printing mechanism (30) to perform a printing operation on the workpiece to be printed carried by the first carrier (40) or the second carrier (50) located at the printing station.

5. The ultraviolet inkjet printer according to claim 4, characterized in that: The ultraviolet inkjet printer further comprises a first sensing component and a second sensing component, wherein the first sensing component and the second sensing component are both electrically connected to the controller; The first sensing component is used to sense whether the first carrier (40) has arrived at the loading and unloading station, the first waiting station or the printing station, and when arriving, sends a first loading and unloading arrival signal, a first waiting arrival signal and a first printing arrival signal to the controller respectively; The second sensing component is used to sense whether the second carrier (50) has arrived at the loading and unloading station, the second waiting station or the printing station, and when arriving, sends a second loading and unloading arrival signal, a second waiting arrival signal and a second printing arrival signal to the controller respectively; The controller controls the loading and unloading mechanism (20) to unload the printed parts and load the parts to be printed according to the first loading and unloading arrival signal or the second loading and unloading arrival signal; and The controller controls the printing mechanism (30) to implement a printing operation according to the first print arrival signal or the second print arrival signal.

6. The ultraviolet inkjet printer according to claim 4, characterized in that: The loading and unloading mechanism (20) comprises a monitor (21), and when the first carrying platform (40) and the second carrying platform (50) are located at the loading and unloading station, the monitor (21) is used to monitor whether the carrying platform carries the workpiece to be printed or the printed workpiece, and to generate a feedback signal; The controller is electrically connected to the monitor (21), and the controller determines whether the workpiece to be printed has been loaded on the carrier according to a feedback signal from the monitor (21), and controls the first carrier (40) or the second carrier (50) to leave the loading and unloading station after confirming that the workpiece to be printed has been loaded on the carrier.

7. The ultraviolet inkjet printer according to claim 6, characterized in that: The first carrying platform (40) comprises at least two carrying positions, the at least two carrying positions are sequentially spaced apart in a transverse direction, the first carrying platform (40) and the second carrying platform (50) are identical, and the monitor (21) and the carrying positions correspond one to one; The loading and unloading mechanism (20) further comprises a delivery member (22), an intake member (23) and a toggle member (24), wherein the delivery member (22) and the intake member (23) are distributed on opposite sides of the loading and unloading station in the transverse direction, and the at least two bearing positions comprise a first bearing position adjacent to the delivery member (22) and a second bearing position adjacent to the intake member (23); The pickup member (23) can pick up the printed piece on the second carrying position, and the delivery member (22) can deliver the piece to be printed to the first carrying position; The toggle member (24) comprises a driving roller (241), a driven roller (242), a synchronous belt (243) and a paddle (244); the driving roller (241) and the driven roller (242) are spaced apart in the transverse direction, and the central axes of the driving roller (241) and the driven roller (242) extend in the height direction; the synchronous belt (243) is sleeved on the driving roller (241) and the driven roller (242); the paddle (244) is arranged on the synchronous belt (243); the number of the paddles (244) is multiple and evenly spaced apart in the transverse direction; the spacing between adjacent paddles (244) is equal to the transverse dimension of the carrying position; the paddle (244) moves along with the synchronous belt (243) to toggle the printed piece or the piece to be printed located at the carrying position toward the pickup member (23); When the first carrying platform (40) or the second carrying platform (50) is located at the loading and unloading station, the paddle (244) facing the loading and unloading station corresponds to the carrying position one by one, so as to simultaneously paddle the printed parts or the parts to be printed on each of the carrying positions.

8. The ultraviolet inkjet printer according to claim 7, characterized in that: The delivery member (22) may include a first upper roller and a first lower roller spaced apart in the height direction, and the workpiece to be printed may be clamped between the upper roller and the lower roller; and / or, The pickup member (23) may include a second upper roller and a second lower roller spaced apart in the height direction, and the printed piece may be clamped between the second upper roller and the second lower roller.

9. The ultraviolet inkjet printer according to claim 1, characterized in that: The ultraviolet inkjet printer further comprises a positioning mechanism (60), wherein the positioning mechanism (60) is mounted on the frame, and the positioning mechanism (60) comprises a first positioning member (61) and a second positioning member (62); The first bearing platform (40) comprises a bearing slot (43), a first opening (41) and a second opening (42); the bearing slot (43) corresponds to the workpiece to be printed one by one; the bearing slot (43) comprises a bottom wall and two side walls (431) spaced apart in the longitudinal direction; the workpiece to be printed is accommodated between the two side walls (431); the bearing slot (43) is located between two adjacent second openings (42); the first opening (41) is located between two adjacent second openings (42); and the opening directions of the first opening (41) and the second opening (42) are both oriented toward the printing mechanism (30); The first carrier platform (40) and the second carrier platform (50) are the same; when the first carrier platform (40) or the second carrier platform (50) reaches the printing station, the first positioning member (61) is inserted into the first opening (41), and the second positioning member (62) is inserted into the second opening (42), and the workpiece to be printed is jointly positioned by the first positioning member (61), the second positioning member (62) and the side wall (431) of the carrier groove (43).

10. The ultraviolet inkjet printer according to claim 9, characterized in that: The positioning mechanism (60) comprises a mechanical arm (63) extending in a transverse direction, the first positioning member (61) comprises a first elastic member, one end of the first elastic member is connected to the mechanical arm (63), and the first elastic member can be elastically deformed in a longitudinal direction; and / or, The second positioning member (62) comprises a second elastic member, one end of which is connected to the mechanical arm (63), and the second elastic member is capable of elastically deforming in a lateral direction.

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