Dual-platform shuttle printing machine and printing method

Abstract

The present invention discloses a dual-platform shuttle printing machine and a printing method, which include a dual printing mechanism, a shuttle conveying mechanism, and an oven mechanism provided on a frame. An oven mechanism is provided at each of the transverse ends of the frame. A shuttle conveying mechanism is provided between each oven mechanism and the dual printing mechanism. A stack code synchronous loading and unloading mechanism is provided on the other side of each oven mechanism. The shuttle conveying mechanism is configured to, during the process that another shuttle conveying mechanism conveys a carrier board carrying a first printed product to the corresponding oven mechanism for baking, correspondingly receive a carrier board carrying a second printed product, and convey the received carrier board to the dual printing mechanism; the oven mechanism is configured to bake the first printed product; the stack code synchronous loading and unloading mechanism is configured to be movably docked with the shuttle conveying mechanism, and after receiving a carrier board carrying a third printed product, push the carrier board carrying the second printed product onto the corresponding shuttle conveying mechanism, so that the corresponding shuttle conveying mechanism conveys the carrier board carrying the second printed product to the dual printing mechanism.

Description

Technical Field

[0001] The present invention relates to the technical field of screen printing equipment, and in particular to a dual-platform shuttle printing machine and a printing method. Background Art

[0002] Screen printing, also known as "silk screen printing", transfers ink through the mesh holes of the graphic part to the substrate by the extrusion of a squeegee during printing, forming the same graphic as the original manuscript. Screen printing is widely used because of its simple equipment, convenient operation, simple printing and plate-making, low cost, and strong adaptability.

[0003] The shuttle screen printing machines in the related art include single-platform (single-direction) and dual-platform printing methods. The single-platform printing method has low processing efficiency and cannot meet the requirements of high-speed printing. When using the dual-platform (two-way feeding) method for printing, when printing in one direction, the other direction needs to pause and wait. However, the existing dual-platform printing machines do not optimize the printing process for the paused waiting side, thus wasting a large amount of waiting time, reducing the printing efficiency, and increasing the printing cost.

[0004] At present, no effective solution has been proposed for the problem of low printing efficiency of the shuttle screen printing machines in the related art. Summary of the Invention

[0005] In view of this, it is necessary to provide a dual-platform shuttle printing machine and a printing method to at least solve the problem of low printing efficiency of the shuttle screen printing machines in the related art.

[0006] In a first aspect, the present invention provides a technical solution as follows: A dual-platform shuttle printing machine includes a dual printing mechanism, a shuttle conveying mechanism, and an oven mechanism disposed on a horizontally extending frame. One oven mechanism is provided at each of the two horizontal ends of the frame. A shuttle conveying mechanism is provided between each oven mechanism and the dual printing mechanism. A stacking and synchronizing loading and unloading mechanism that is movably docked with the shuttle conveying mechanism shuttling into the corresponding oven mechanism is provided on the other side of each oven mechanism away from the shuttle conveying mechanism. Among them, the shuttle conveying mechanism is at least used for, during the process that another shuttle conveying mechanism conveys a carrier board carrying a first printed product to one of the two oven mechanisms for baking, receiving at a corresponding oven mechanism the carrier board carrying a second printed product, and conveying the received carrier board to the dual printing mechanism, and shuttling and conveying between two printing components of the dual printing mechanism. Here, the first printed product is a printed product that has been completed, and the second printed product is a printed product to be printed; the oven mechanism is used for baking the first printed product placed on the corresponding carrier board; the stacking and synchronizing loading and unloading mechanism is used for movably docking with the shuttle conveying mechanism placed in the corresponding oven mechanism, and after receiving the carrier board carrying a third printed product, pushing the carrier board carrying a second printed product to the shuttle conveying mechanism located in the oven mechanism, so that the corresponding shuttle conveying mechanism conveys the carrier board carrying the second printed product to the dual printing mechanism. The third printed product is a printed product that has been baked.

[0007] In a second aspect, the present invention further provides a technical solution as follows: A printing method includes the dual-platform shuttle printing machine in the first aspect. The printing method includes the following steps:

[0008] Step S1: During the process that another shuttle conveying mechanism conveys the carrier board carrying the first printed product to one of the two oven mechanisms for baking, one shuttle conveying mechanism conveys the carrier board carrying the third printed product corresponding to the previous printing to the corresponding stacking and synchronizing loading and unloading mechanism at the docking position with the corresponding oven mechanism, then receives the carrier board carrying the second printed product pushed by one stacking and synchronizing loading and unloading mechanism, and conveys the received carrier board to the dual printing mechanism;

[0009] Step S2: One shuttle conveying mechanism conveys the corresponding carrier board to drive a plurality of second printed products to be successively placed below the two printing components, so that the two printing components successively perform two-color printing or double-color printing on each second printed product;

[0010] Step S3, after the two printing components complete printing of all the second printed products and obtain the first printed products, one of the shuttle conveyor mechanisms conveys the corresponding carrier plate to drive the plurality of first printed products to shuttle back to the corresponding oven mechanism for baking, and the other shuttle conveyor mechanism located in the corresponding oven mechanism, after completing conveying the carrier plate carrying the third printed product to the other stacking synchronous loading and unloading mechanism, receives the carrier plate carrying the second printed product pushed by the other stacking synchronous loading and unloading mechanism, and conveys the received carrier plate to the double printing mechanism for printing;

[0011] Step S4: the shuttle transmission mechanism, the oven mechanism and the synchronous loading and unloading mechanism for stacking located on both sides of the double printing mechanism cooperate with the double printing mechanism to repeat the operations of steps S1 to S3 until the preset number of printings is completed.

[0012] Compared with the prior art, the double-platform shuttle printing machine and printing method provided in the embodiment of the present application include a double printing mechanism, a shuttle conveying mechanism and an oven mechanism arranged on a laterally extending frame, an oven mechanism is arranged at each of the lateral ends of the frame, a shuttle conveying mechanism is arranged between each of the oven mechanisms and the double printing mechanism, and each of the oven mechanisms is provided with a synchronous loading and unloading mechanism for stacking which is movably docked with the shuttle conveying mechanism that shuttles into the corresponding oven mechanism on the other side of the oven mechanism away from the shuttle conveying mechanism, and the carrier plate carrying the first printed product is transported to one of the two oven mechanisms by the shuttle conveying mechanism in the other shuttle conveying mechanism and baked, and in the corresponding oven mechanism The carrier plate carrying the second printed product is received at the dual printing mechanism, and the received carrier plate is transferred to the dual printing mechanism, and shuttled between the two printing components of the dual printing mechanism; the first printed product placed on the corresponding carrier plate is baked by the oven mechanism; and after receiving the carrier plate carrying the third printed product, the carrier plate carrying the second printed product is pushed to the shuttle conveying mechanism located in the oven mechanism by the stacking synchronous loading and unloading mechanism, so that the corresponding shuttle conveying mechanism transfers the carrier plate carrying the second printed product to the dual printing mechanism, thereby realizing the dual-platform synchronous cycle of uninterrupted printing, conveying, baking, unloading and loading operations, improving printing efficiency, and solving the problem of low printing efficiency of shuttle screen printing machines in related technologies. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of a three-dimensional structure of a double-platform shuttle printing machine according to an embodiment of the present application;

[0014] Figure 2 A schematic diagram of a single platform side of a double-platform shuttle printing machine according to an embodiment of the present application;

[0015] Figure 3 It is the assembly drawing of the double printing mechanism, shuttle transfer mechanism and oven mechanism of the embodiment of the present application;

[0016] Figure 4 It is the three-dimensional view of the shuttle transfer mechanism of the embodiment of the present application;

[0017] Figure 5 It is the assembly schematic diagram of the lifting unit and the material-carrying conveying unit of the embodiment of the present application;

[0018] Figure 6 It is the assembly drawing of the shuttle transfer mechanism and the double printing mechanism of the embodiment of the present application;

[0019] Figure 7 It is the three-dimensional view of the printing assembly of the embodiment of the present application;

[0020] Figure 8 It is another three-dimensional view of the printing assembly of the embodiment of the present application;

[0021] Figure 9 It is the three-dimensional view of the stacking and synchronizing loading and unloading mechanism of the embodiment of the present application.

[0022] Accompanying drawings

[0023] 100, frame;

[0024] 200, double printing mechanism; 21, printing assembly; 22, rotating shaft assembly; 23, lifting assembly; 24, slide rail; 25, gantry sliding seat; 26, synchronous drive unit; 27, screen plate support frame; 28, squeegee telescopic bracket; 29, ink return knife telescopic bracket; 211, frame seat; 212, squeegee drive unit; 213, squeegee bracket; 214, ink return drive unit; 215, ink return bracket; 221, rotating shaft mounting seat; 222, rotating shaft; 223, shaft seat; 231, reduction gearbox; 232, transmission shaft; 233, transmission cam; 234, crank; 235, bearing seat;

[0025] 300, shuttle transfer mechanism; 31, lifting unit; 32, material-carrying conveying unit; 33, shuttle feeding assembly; 34, linear guide rail; 35, sliding table; 36, vacuum suction plate; 37, positioning assembly; 38, linear motor; 311, bottom plate; 312, guide post; 313, lifting drive unit; 314, U-shaped bracket; 321, synchronous drive belt; 322, V-shaped seat; 323, synchronous drive unit; 371, limit post; 372, longitudinal push alignment unit; 373, transverse push alignment unit; 374, drive cylinder; 375, alignment seat;

[0026] 400, oven mechanism;

[0027] 500, synchronous loading and unloading mechanism for stacking; 51, turnover shelf; 52, stacking conveyor; 53, chassis; 54, lifting transmission assembly; 55, upper conveyor; 56, lower conveyor; 511, storage layer;

[0028] 600, carrier board. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.

[0032] See also Figures 1 to 9 The double-platform shuttle printing machine of the embodiment of the present application comprises a double printing mechanism 200, a shuttle transmission mechanism 300 and an oven mechanism 400 arranged on a horizontally extending frame 100. An oven mechanism 400 is arranged at both horizontal ends of the frame 100. A shuttle transmission mechanism 300 is arranged between each oven mechanism 400 and the double printing mechanism 200. A stacking synchronous loading and unloading mechanism 500 is arranged on the other side of each oven mechanism 400 away from the shuttle transmission mechanism 300, and is movably docked with the shuttle transmission mechanism 300 that shuttles into the corresponding oven mechanism 400.

[0033] The shuttle transfer mechanism 300 is at least used to receive the carrier plate 600 carrying the second printed matter at a corresponding oven mechanism 400 while another shuttle transfer mechanism 300 transfers the carrier plate 600 carrying the first printed matter to one of the two oven mechanisms 400 for baking, and to transfer the received carrier plate 600 to the double printing mechanism 200 and shuttle it between the two printing assemblies 21 of the double printing mechanism 200. Here, the first printed matter is the printed matter that has been completed, and the second printed matter is the to-be-printed matter.

[0034] In this embodiment, when starting printing, one of the two shuttle transfer mechanisms 300 needs to convey the carrier plate 600 carrying the second printed matter loaded from the stack synchronization loading and unloading mechanism 500 to the double printing mechanism 200. Then, the shuttle transfer mechanism 300 carries the carrier plate 600 carrying multiple second printed matters and places them successively below the two printing assemblies 21. And the two printing assemblies 21 print each second printed matter in turn. After printing is completed, the shuttle transfer mechanism 300 will shuttle the carrier plate 200 carrying the printed matter that has been completed (corresponding to the first printed matter) back to the position for receiving the printed matter, that is, back to the oven mechanism 400, to at least bake the printed matter that has been completed; after the first operation, while one shuttle transfer mechanism 300 transfers the second printed matter to the double printing mechanism 200 for printing, the other shuttle transfer mechanism 300 will transfer the first printed matter printed in the previous time to the corresponding oven mechanism 400 for baking, and after baking is completed, receive a new to-be-printed second printed matter. Thus, when the second printed matter transferred by this one shuttle transfer mechanism 300 is completed and transferred to the corresponding oven mechanism 400 for baking, this other shuttle transfer mechanism 300 can carry the new to-be-printed second printed matter to the double printing mechanism 200 for printing.

[0035] It can be understood that in this embodiment, the two shuttle transfer mechanisms 300 alternately transfer the second printed matter to the double printing mechanism 200 for printing and transfer the printed first printed matter back to the corresponding oven mechanism 400 for baking in a cycle. In this way, cyclic printing operations are carried out to achieve double-platform printing operations. At the same time, the printing waiting time caused by baking the printed matter is also reduced, and the printing efficiency is improved.

[0036] The oven mechanism 400 is used to bake the first printed matter placed on the corresponding carrier plate 600.

[0037] In this embodiment, the oven mechanism 400 includes, but is not limited to, a mini tunnel oven, and the oven mechanism 400 is nested with the frame 100. The cavity of the oven mechanism 400 forms a part of the channel for the shuttle transfer mechanism 300 to drive the corresponding carrier plate 600 to move. The oven mechanism 400 uses the hot air drying method to dry the first printed product. When the shuttle transfer mechanism 300 conveys the corresponding carrier plate 600 into the oven mechanism 400 and places it at the docking position with the stack synchronization loading and unloading mechanism 500, the carrier plate 600 is also located in the corresponding baking area, so as to dry the first printed product. It should be understood that in this embodiment, to ensure that double-platform cyclic uninterrupted printing can be achieved, the printing time of the oven mechanism 400 for the first printed product is matched with the time for another shuttle transfer mechanism 300 to drive the corresponding carrier plate 600 to drive all the second printed products to shuttle to the double printing mechanism 200, and the two printing components 21 sequentially perform two-color printing on all the second printed products. That is, when the printed product on the horizontal side of the frame 100 is completed printing at the double printing mechanism 200, the printed product on the other horizontal side of the frame 100 is at least dried and unloaded to the corresponding stack synchronization loading and unloading mechanism 500, and the loading of the new second printed product to be printed is completed. Furthermore, when the printed product that has completed printing is conveyed to the corresponding oven mechanism 400, the new second printed product to be printed on the other side is conveyed to the double printing mechanism 200 for printing.

[0038] The stack synchronization loading and unloading mechanism 500 is used to actively dock with the shuttle transfer mechanism 300 placed in the corresponding oven mechanism 400. After receiving the carrier plate 600 carrying the third printed product, the carrier plate 600 carrying the second printed product is pushed onto the shuttle transfer mechanism 300 located in the oven mechanism 400, so that the corresponding shuttle transfer mechanism 300 conveys the carrier plate 600 carrying the second printed product to the double printing mechanism 200, and the third printed product is the printed product that has completed baking.

[0039] In this embodiment, the conveyors provided in the stack synchronization loading and unloading mechanism 500 are stacked up and down and correspond to the storage layers 511 on its turnover shelf 51. The upper and lower storage layers 511 are also respectively defined as storage layers 511 for placing carrier plates with different printed products, so as to ensure that each conveyor corresponds to one storage layer 511, realizing the synchronous unloading of the carrier plate 600 carrying the third printed product to the stack synchronization loading and unloading mechanism 500 and the loading of the carrier plate 600 carrying the second printed product onto the corresponding conveyor. Furthermore, after receiving the carrier plate 600 carrying the third printed product, the carrier plate 600 carrying the second printed product is then conveyed onto the shuttle transfer mechanism 300. In this way, synchronous loading and unloading are achieved, and double-platform shuttle feeding, printing, return feeding, and baking cyclic operations are also maintained.

[0040] It can be understood that, in order to meet the requirements of multiple printing operations, the turnover shelves 51 of the stack code synchronous loading and unloading mechanism 500 provided on the transverse sides of the frame 100 can also be set to be able to turnover with each other. That is, when the printed matter on the left side of the double printing mechanism 200 completes one printing, through the mutual turnover of the turnover shelves 51, and then when it is transferred to the right side, it is printed again, so as to realize the printing of the printed matter that needs to be printed multiple times; it can also be understood that after the printed matter on a certain side is printed, the printed matter that has completed printing previously can be re-loaded from the stack code synchronous loading and unloading mechanism 500 where it is located, and then printed again, so as to meet the printing of the printed matter that needs to be printed multiple times.

[0041] In the above double-platform shuttle printing machine, when the shuttle conveying mechanism 300 conveys the carrier board 600 carrying the first printed matter to one of the two oven mechanisms 400 and bakes it, at a corresponding oven mechanism 400, the carrier board 600 carrying the second printed matter is received, and the received carrier board 600 is conveyed to the double printing mechanism 200 and shuttled between the two printing components 21 of the double printing mechanism 200; the first printed matter placed on the corresponding carrier board 600 is baked by the oven mechanism 400; and after the stack code synchronous loading and unloading mechanism 500 receives the carrier board 600 carrying the third printed matter, the carrier board 600 carrying the second printed matter is pushed onto the shuttle conveying mechanism 300 located in the oven mechanism 400, so that the corresponding shuttle conveying mechanism 300 conveys the carrier board 600 carrying the second printed matter to the double printing mechanism 200, realizing double-platform synchronous cyclic and uninterrupted printing, conveying, baking, unloading, and loading operations, improving the printing efficiency, and solving the problem of low printing efficiency of the shuttle screen printing machine in the related art.

[0042] To realize the transfer of the carrier boards 600 carrying different printed matters between the stack code synchronous loading and unloading mechanism 500 and the shuttle conveying mechanism 300, referring to Figures 1 to 6 , in some embodiments, the shuttle conveying mechanism 300 includes a jacking unit 31, a material-carrying conveying unit 32, and a shuttle feeding assembly 33. The jacking unit 31 is installed on one transverse side of the frame 100 and is used to drive the vertically moving material-carrying conveying unit 32 connected to it in transmission. The shuttle feeding assembly 33 is movably arranged on the frame 100, wherein,

[0043] After the lifting unit 31 drives the material-carrying conveying unit 32 to move vertically and lifts the carrier board 600 carrying the first printed product from the shuttle feeding assembly 33, the material-carrying conveying unit 32 laterally conveys the corresponding carrier board 600 to the docking position with the stacking and unstacking synchronous loading and unloading mechanism 500; the material-carrying conveying unit 32 is also used for, after receiving the carrier board 600 carrying the second printed product that is loaded laterally by the stacking and unstacking synchronous loading and unloading mechanism 500, laterally transporting the corresponding carrier board 600 to a position directly above the shuttle feeding assembly 33, and during the process of being driven by the lifting unit 31 to move vertically downward, placing the carrier board 600 carrying the second printed product on the shuttle feeding assembly 33.

[0044] In this embodiment, when the material-carrying conveying unit 32 is in the initial position, it is lower than the position of the carrier board 600 placed on the corresponding shuttle feeding assembly 33, and the material-carrying conveying unit 32 is a carrier conveying unit with a hollow middle, that is, when the material-carrying conveying unit 32 moves vertically up and down, it will not be blocked by the shuttle feeding assembly 33. When the material-carrying conveying unit 32 is placed at a position lower than the shuttle feeding assembly 33, the material-carrying conveying unit 32 moves vertically upward and can lift the carrier board 600 located on the shuttle feeding assembly 32. When the material-carrying conveying unit 32 is placed at a position higher than the shuttle feeding assembly 33, the material-carrying conveying unit 32 moves vertically downward and can place the carried carrier board 600 on the shuttle feeding assembly 32; in this embodiment, when it is necessary to convey the carrier board 600 carrying the first printed product to the stacking and unstacking synchronous loading and unloading mechanism 500, the lifting unit 31 drives the material-carrying conveying unit 32 to move vertically upward, lifts the carrier board 600 located on the shuttle feeding assembly 32, and cooperates with its own lateral transmission to convey the corresponding carrier board 600 to the stacking and unstacking synchronous loading and unloading mechanism 500; when the material-carrying conveying unit 32 receives the corresponding carrier board 300 loaded from the stacking and unstacking synchronous loading and unloading mechanism 500, the lifting unit 31 drives the material-carrying conveying unit 32 to move vertically downward and lifts the carrier board 600 located on the shuttle feeding assembly 32, so that the carrier board 600 carrying the second printed product is placed on the shuttle feeding assembly 33.

[0045] The shuttle feeding assembly 33 is used to shuttle the carrier board 600 carrying the second printed product received through two printing assemblies 21, so that the printing assemblies 21 sequentially print the second printed product placed on the carrier board 600, and to return the carrier board 600 carrying the first printed product from the double printing mechanism 200 to the corresponding material-carrying conveying unit 32.

[0046] In this embodiment, as a transportation component, it is used to convey the carrier board 600 carrying multiple second printed products to the double printing mechanism 200, and after all the second printed products on the carrier board 600 are printed, to return the carrier board 600 and multiple corresponding first printed products to the corresponding oven mechanism 400, which is also the docking position with the stacking and unstacking synchronous loading and unloading mechanism 500.

[0047] It can be understood that, with such an arrangement, the lifting unit 31 is used to drive the loading and conveying unit 32 to move vertically, and cooperate with the lateral transmission of the loading and conveying unit 32, so as to realize the transfer of the carrier 600 carrying different printed products to the synchronous loading and unloading mechanism 500 of the stacking stack or place it on the shuttle feeding component 33; through the transportation of the shuttle feeding component 33, the printed products are transported to the dual printing mechanism 200 and corresponding printing is carried out. While realizing the transmission of the carrier 600 carrying different printed products between the synchronous loading and unloading mechanism 500 of the stacking stack and the shuttle transmission mechanism 300, it also assists the dual printing mechanism 200 to print.

[0048] In some of these embodiments, reference Figures 1 to 6 The lifting unit 31 includes a bottom plate 311, a guide column 312, a lifting drive unit 313 and a U-shaped bracket 314. The material conveying unit 32 includes a synchronous transmission belt 321, a V-shaped seat 322 and a synchronous drive unit 323. The bottom plate 311 is fixed on the frame 100. The U-shaped bracket 314 is movably connected to the bottom plate 311 through the guide column 312. The U-shaped bracket 314 is also connected to the lifting drive unit 313 fixed on the bottom plate 311. The two side walls of the U-shaped bracket 314 are provided with synchronous transmission belts 321. Each synchronous transmission belt 321 is fixed with a plurality of V-shaped seats 322. The two synchronous transmission belts 321 are connected to the synchronous drive unit 323.

[0049] The lifting drive unit 313 is used to drive the U-shaped bracket 314 to drive the loading and conveying unit 32 to move vertically, so that the loading and conveying unit 32 lifts the carrier 600 carrying the first printed product from the shuttle feeding assembly 33 or places the carrier 600 carrying the second printed product on the shuttle feeding assembly 33.

[0050] In this embodiment, the lifting drive unit 313 includes but is not limited to one of the following: a driving cylinder, a ball screw module, and an electric cylinder. In this embodiment, the lifting drive unit 313 provides power to enable the loading and conveying unit 32 to move vertically.

[0051] The synchronous drive unit 323 is used to drive the two synchronous transmission belts 321 to synchronously drive the corresponding multiple V-shaped seats 322 to rotate, and drive the carrier 600 supported by the V-shaped seat 322 to move horizontally to the shuttle feeding assembly 33 located in the U-shaped groove of the U-shaped bracket 314, or to remove the carrier 600 located on the shuttle feeding assembly 33.

[0052] In this embodiment, the synchronous drive unit 323 includes but is not limited to a servo motor; in this embodiment, a plurality of V-shaped seats 322 are fixed to the synchronous transmission belt 321. When two synchronous transmission belts 321 synchronously drive the corresponding plurality of V-shaped seats 322 to perform cyclic rotation, the V-shaped seats 322 located on the horizontal plane will first move horizontally until they move to the front and rear ends of the synchronous transmission belt 321, and then rotate. The carrier plate 600 is stuck on the V-shaped seat 322. When the V-shaped seat 322 moves horizontally, it will drive the carrier plate 600 to move horizontally. When the corresponding V When the V-shaped seat 322 needs to be rotated, the carrier plate 600 will continue to move horizontally due to the drive of other V-shaped seats 322 in the horizontal plane, or when the V-shaped seat 322 needs to be rotated, the carrier plate 600 has been partially received by the shuttle feeding assembly 33 or the synchronous loading and unloading mechanism 500 of the stacking stack, and under the push of the V-shaped seat 322 located behind the V-shaped seat 322 that needs to be rotated, the carrier plate 600 can continue to move horizontally until it is completely placed on the shuttle feeding assembly 33 or the synchronous loading and unloading mechanism 500 of the stacking stack, so as to realize the horizontal transmission of the carrier plate 600.

[0053] To realize the transfer of the carrier plate 600 between the double printing mechanism 200 and the oven mechanism 400, refer to Figures 1 to 6 In some embodiments, the shuttle feeding assembly 33 includes a linear guide rail 34, a sliding table 35, a vacuum suction plate 36, a positioning assembly 37 and a linear motor 38. Two linear guide rails 34 extending along the length direction of the frame 100 are provided on both sides of the width direction of the frame 100. The linear guide rails 34 are also located on the longitudinal outer sides of the two synchronous transmission belts 321 in the setting position. The sliding table 35 is movably connected with the two linear guide rails 34 and is transmission-connected with the linear motor 38 installed on the frame 100. The vacuum suction plate 36 is arranged on the sliding table 35. The positioning assembly 37 is installed on the sliding table 35 and distributed around the vacuum suction plate 36.

[0054] After the carrier 600 carrying the second printed product is placed on the vacuum suction plate 36 by the material conveying unit 32 , the positioning assembly 37 is used to perform lateral and longitudinal alignment on the carrier 600 so as to place the carrier 600 at a preset position.

[0055] The vacuum suction plate 36 is used to absorb and fix the corresponding carrier 600 after the carrier 600 carrying the second printed product is calibrated to a preset position, and to release the corresponding carrier 600 after the shuttle feeding component 33 returns the carrier 600 carrying the first printed product to dock with the corresponding carrier conveying unit 32.

[0056] A linear motor 38 is used to drive the sliding table 35 to drive the vacuum suction plate 36 and the positioning assembly 37 to move between the docking position with the loading and conveying unit 32 and the docking position with the double printing mechanism 200, so as to shuttle the carrier plate 600 carrying the second printed product through the two printing assemblies 21 and return the carrier plate 600 carrying the first printed product to the corresponding loading and conveying unit 32.

[0057] In this embodiment, the linear motor 38 adopts an electromagnetic induction linear motor.

[0058] In some embodiments, the positioning assembly 37 includes a limit post 371, a longitudinal pushing and alignment unit 372, and a transverse pushing and alignment unit 373. A limit post 371 and a longitudinal pushing and alignment unit 372 are provided at each of the top corners on the two lateral sides of the sliding table 35, and a transverse pushing and alignment unit 373 is fixedly provided on each of the two lateral sides of the sliding table 35. The longitudinal pushing and alignment unit 372 and the transverse pushing and alignment unit 373 both include a driving cylinder 374 and an alignment seat 375. Among them,

[0059] The two limit posts 371 are used to be inserted into the limit holes 61 of the carrier plate 600 when the corresponding carrier plate 600 is placed on the vacuum suction plate 36, so as to perform initial positioning on the carrier plate 600.

[0060] The driving cylinders 374 of the longitudinal pushing and alignment unit 372 and the transverse pushing and alignment unit 373 respectively drive the corresponding alignment seats 375 to move in the corresponding directions, so as to drive the corresponding carrier plate 600 to perform lateral and / or longitudinal fine adjustment relative to the limit post 371 until it moves to a preset position.

[0061] In this embodiment, when the carrier plate 600 is placed on the vacuum suction plate 36, the limit holes 61 of the carrier plate 600 are sleeved on the two limit posts 371. At this time, the carrier plate 600 is preliminarily limited and fixed, but there is still a certain gap between the limit holes 61 and the limit posts 371. At this time, the driving cylinders 374 of the longitudinal pushing and alignment unit 372 and the transverse pushing and alignment unit 373 respectively drive the corresponding alignment seats 375 to push the carrier plate 600 to move, so that the carrier plate 600 is closely attached to the limit post 371 in both the longitudinal direction and the lateral direction. In this way, it means that the lateral and / or longitudinal fine adjustment of the carrier plate 600 is completed, that is, the carrier plate 600 is adjusted to a preset position; after the positioning of the carrier plate 600 is completed, when the carrier plate 600 is conveyed to a set position below the printing assembly 21 (the in-place inspection can be performed by setting corresponding photoelectric sensors), the corresponding printed product is placed at a preset printing position. In this way, accurate printing of the printed product is realized through the printing assembly 21.

[0062] To realize feeding the second printed product to be printed onto the shuttle conveying mechanism 300 located in the oven mechanism 400 or receiving the carrier plate 600 carrying the third printed product, refer to Figure 1 、 Figure 2 andFigure 9 , in some of these embodiments, the stacking and synchronizing loading and unloading mechanism 500 includes a turnover shelf 51 and a stacking conveyor 52. The stacking conveyor 52 includes a lifting transmission assembly 54 provided on the side wall of the chassis 53. The lifting transmission assembly 54 is drivingly connected to an upper conveyor 55 and a lower conveyor 56 which are stacked. Both the upper conveyor 55 and the lower conveyor 56 are arranged to face the shuttle transfer mechanism 300 and the turnover shelf 51. Among them,

[0063] In this embodiment, the turnover shelf 51 is provided with multiple layers of storage layers. The upper and lower layers are respectively defined as storage layers for placing carriers 600 carrying different printed products, that is, the upper and lower storage layers are arranged in a cross manner. When the lower storage layer is set as the storage layer for placing the carrier 600 carrying the second printed product (to-be-printed product), the upper storage layer is set as the storage layer for placing the carrier 600 carrying the third printed product (printed product after drying). Thus, the upper conveyor 55 and the lower conveyor 56 are docked with different storage layers, and respectively load (transfer the carrier 600 carrying the second printed product to the shuttle transfer mechanism 300) or unload (transfer the carrier 600 carrying the third printed product from the shuttle transfer mechanism 300) the carriers 600 carrying different printed products. In this way, the loading and unloading are carried out synchronously, and the cyclic operations of double-platform conveying, printing, returning and conveying, and baking are also maintained.

[0064] After the oven mechanism 400 bakes the first printed product into the third printed product, the lifting transmission assembly 54 drives the upper conveyor 55 and the lower conveyor 56 to move vertically, so that the lower conveyor 56 and the upper conveyor 55 are sequentially and movably docked with the shuttle transfer mechanism 300.

[0065] In this embodiment, the lifting transmission assembly 54 is composed of a vertically arranged linear module, a vertically arranged linear slide rail, and a slide plate hung on two linearly spaced slide rails. The slide plate is drivingly connected to the linear module. The upper conveyor 55 and the lower conveyor 56 are connected to the slide plate. The linear module drives the slide plate to drive the upper conveyor 55 and the lower conveyor 56 to slide along the linear slide rail, correspondingly driving the lower conveyor 56 and the upper conveyor 55 to be sequentially and movably docked with the shuttle transfer mechanism 300, and respectively docked with the corresponding storage layers 511.

[0066] The lower conveyor 56, when being driven to be docked with the shuttle transfer mechanism 300, receives the carrier 600 carrying the third printed product pushed by the corresponding shuttle transfer mechanism 300, and when being flush with the corresponding storage layer 511 of the turnover shelf 51, transfers the carrier 600 carrying the third printed product to the corresponding storage layer 511.

[0067] The upper conveyor 55, when being driven to dock with the shuttle conveyor mechanism 300, transfers the carrier plate 600 carrying the second printed product to the shuttle conveyor mechanism 300 located in the corresponding oven mechanism 400, and before being transferred to dock with the shuttle conveyor mechanism 300, receives the carrier plate 600 carrying the second printed product loaded from the corresponding storage layer 511.

[0068] In this embodiment, the lifting transmission assembly 54 synchronously drives the upper conveyor 55 and the lower conveyor 56 to move, and when the lower conveyor 56 is docked with the shuttle transmission mechanism 300, the upper conveyor 55 is docked with the corresponding storage layer 511. Similarly, when the upper conveyor 55 is docked with the shuttle transmission mechanism 300, the lower conveyor 56 remains docked with another storage layer 511, thereby realizing synchronous unloading of the carrier plate 600 carrying the third printed product to the turnover shelf 51 and loading of the carrier plate 600 carrying the second printed product onto the upper conveyor 55, and after the lower conveyor 56 receives the carrier plate 600 carrying the third printed product, the upper conveyor 55 is then loaded. It is capable of transferring the carrier 600 carrying the second printed product to the shuttle transport mechanism 300; it can be understood that the upper conveyor 55 receives the carrier 600 carrying the second printed product, and it can be that the lower conveyor 56 receives the carrier 600 carrying the third printed product pushed by the corresponding shuttle transport mechanism 300. At this time, there is a corresponding carrier 600 on the storage layer 511 corresponding to the upper conveyor 55, or it can be that the lower conveyor 56 is flush with the storage layer 511 corresponding to the turnover shelf 51 and transfers the carrier 600 carrying the third printed product to the corresponding storage layer 511, but at least before the upper conveyor 55 is transferred to dock with the shuttle transport mechanism 300.

[0069] In this embodiment, the upper conveyor 55 and the lower conveyor 56 include but are not limited to a synchronous belt conveyor and a chain conveyor;

[0070] In order to realize printing of printed products, refer to Figures 1 to 3 , Figure 6 and Figure 8 In some embodiments, the dual printing mechanism 200 further includes a rotating shaft assembly 22 and a lifting assembly 23 respectively disposed on the longitudinal front and rear sides of each printing assembly 21, wherein:

[0071] The rotating shaft assembly 22 includes a rotating shaft mounting seat 221, a rotating shaft 222 and an axle seat 223. The rotating shaft 222 is installed on the frame 100 through multiple rotating shaft mounting seats 221. The rotating shaft 222 is also connected to the axle seat 223 fixed at the bottom of the frame seat 211 of the corresponding printing assembly 21. The frame seat 211 rotates with the rotating shaft 222 to enable the printing assembly 21 to pivot and open and close.

[0072] The lifting assembly 23 includes a speed reducer 231, a transmission shaft 232, a transmission cam 233 and a crank 234. The speed reducer 231 is fixedly arranged on the tabletop of the frame 100 and is in transmission connection with the transmission shaft 232 installed through a bearing seat 235. The transmission cam 233 is arranged on the transmission shaft 232. The crank 234 is fixedly arranged at the bottom of the longitudinal front side of the frame seat 211. The speed reducer 231 drives the transmission cam 233 to rotate eccentrically through the transmission shaft 232 and intermittently pushes the crank 234 to drive the frame seat 211 to drive the printing assembly 21 to pivot and open and close. Among them, before the shuttle feeding assembly 33 drives the corresponding carrier plate 600 to move to the lower part of the printing assembly 21 and after the printing assembly 21 completes the corresponding printing, the lifting assembly 23 lifts the printing assembly 21 to open, so that the shuttle feeding assembly 33 drives the corresponding carrier plate 600 to move into or out of the double printing mechanism 200; when the lifting assembly 23 releases the lifting of the printing assembly 21, the frame seat 211 is horizontally placed and is flush with the shuttle feeding assembly 33 that shuttles to the lower part of the printing assembly 21, so that the printing assembly 21 prints the second printed matter on the corresponding carrier plate 600.

[0073] In some embodiments, the printing assembly 21 further includes slide rails 24 arranged on the transverse side walls of the frame seat 211 and extending longitudinally. The two slide rails 24 are movably connected with a gantry sliding seat 25 spanning transversely. The frame seat 211 is provided with a synchronous driving unit 26 for driving the gantry sliding seat 25 to slide along the slide rails 24. The frame seat 211 further includes a screen plate supporting frame 27 connected with the frame seat 211. The gantry sliding seat 25 is further provided with a squeegee telescopic bracket 28 and an ink return knife telescopic bracket 29. One end of the squeegee telescopic bracket 28 far away from the gantry sliding seat 25 is connected with a squeegee bracket 213 in transmission connection with a squeegee driving unit 212. One end of the ink return knife telescopic bracket 29 far away from the gantry sliding seat 25 is connected with an ink return bracket 215 in transmission connection with an ink return driving unit 214. Among them,

[0074] When the shuttle transfer mechanism 300 transfers the carrier plate 600 carrying the second printed matter to the lower part of the corresponding printing assembly 21, the lifting assembly 23 drives the printing assembly 21 to close, so that the screen plate supporting frame 27 drives the screen plate to be placed on the corresponding second printed matter.

[0075] After the screen plate is placed on the corresponding second printed matter, the squeegee driving unit 212 drives a squeegee (not shown in the figure) installed on the squeegee bracket 213 to feed through the squeegee telescopic bracket 28, and the ink return driving unit 214 drives an ink return knife (not shown in the figure) installed on the ink return bracket 215 to feed through the ink return knife telescopic bracket 29, and cooperates with the synchronous driving unit 26 to drive the gantry sliding seat 25 to move longitudinally to print the second printed matter placed on the corresponding carrier plate 600.

[0076] In this embodiment, to match and carry screen plates of different sizes, the screen plate carrier frame 27 includes a fixed bracket fixedly connected to the longitudinal front side wall of the frame base 211 and a movable bracket movably connected to the two slide rails 24. A clamping cylinder for clamping and fixing the screen plate is further provided on the movable bracket. By clamping one side edge of the screen plate with the clamping cylinder, cooperating with the limiting and carrying of the fixed bracket and the carrying of the movable bracket, the fixing of screen plates of different sizes is satisfied, thereby ensuring that the printed patterns are not misaligned and ensuring the printing quality.

[0077] In this embodiment, both the squeegee driving unit 212 and the ink returning driving unit 214 are screw electric cylinders.

[0078] The embodiment of the present application further provides a printing method for printing using the double-platform shuttle printing machine of the first aspect. Refer to Figures 1 to 9 , the printing method includes the following steps:

[0079] Step S1: While another shuttle conveying mechanism 300 conveys the carrier plate 600 carrying the first printed product to one of the two oven mechanisms 400 for baking, at the docking position corresponding to one oven mechanism 400, the carrier plate 600 carrying the third printed product corresponding to the previous printing is conveyed to the corresponding palletizing synchronous loading and unloading mechanism 500, and then the carrier plate 600 carrying the second printed product pushed by one palletizing synchronous loading and unloading mechanism 500 is received and the received carrier plate 600 is conveyed to the double printing mechanism 200;

[0080] Step S2: One shuttle conveying mechanism 300 conveys the corresponding carrier plate 600 to drive a plurality of second printed products to be successively placed below the two printing assemblies 21, so that the two printing assemblies 21 successively perform two-color printing or double-color printing on each second printed product;

[0081] Step S3: After the two printing assemblies 21 complete the printing of all second printed products and obtain the first printed product, one shuttle conveying mechanism 300 conveys the corresponding carrier plate 600 to drive a plurality of first printed products to shuttle back to the corresponding oven mechanism 400 for baking. Another shuttle conveying mechanism 300 located in the corresponding oven mechanism 400, after completing the conveyance of the carrier plate 600 carrying the third printed product to another palletizing synchronous loading and unloading mechanism 500, receives the carrier plate 600 carrying the second printed product pushed by another palletizing synchronous loading and unloading mechanism 500 and conveys the received carrier plate 600 to the double printing mechanism 200 for printing;

[0082] Step S4: The shuttle conveying mechanisms 300, oven mechanisms 400, and palletizing synchronous loading and unloading mechanisms 500 located on the transverse two sides of the double printing mechanism 200, in cooperation with the double printing mechanism 200, repeat the operations of Step S1 to Step S3 until the printing of the preset number of times is completed.

[0083] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0084] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present invention and are not used to limit the present invention. As long as appropriate changes and variations made to the above embodiments fall within the scope of the spirit of the present invention, they fall within the scope of protection required by the present invention.

Claims

1. A dual-platform shuttle printing machine, characterized in that, It includes a double printing mechanism (200), a shuttle transfer mechanism (300) and an oven mechanism (400) provided on a horizontally extending frame (100). One oven mechanism (400) is provided at each of the two horizontal ends of the frame (100). A shuttle transfer mechanism (300) is provided between each oven mechanism (400) and the double printing mechanism (200). A stack code synchronous loading and unloading mechanism (500) that is movably docked with the shuttle transfer mechanism (300) shuttling into the corresponding oven mechanism (400) is provided on the other side of each oven mechanism (400) facing away from the shuttle transfer mechanism (300). Among them, The shuttle transfer mechanism (300) is at least used to receive the carrier board (600) carrying the second printed product at a corresponding oven mechanism (400) during the process that another shuttle transfer mechanism (300) transfers the carrier board (600) carrying the first printed product to one of the two oven mechanisms (400) for baking, and transfer the received carrier board (600) to the double printing mechanism (200) and shuttle it between the two printing components (21) of the double printing mechanism (200). Among them, the first printed product is a printed product that has been completed, and the second printed product is a printed product to be printed. The shuttle transfer mechanism (300) includes a lifting unit (31), a material-carrying conveying unit (32) and a shuttle feeding component (33). The lifting unit (31) is installed on one horizontal side of the frame (100) and is used to drive the material-carrying conveying unit (32) connected to it to move vertically. The shuttle feeding component (33) is movably arranged on the frame (100). Among them, after the lifting unit (31) drives the material-carrying conveying unit (32) to move vertically and lifts the carrier board (600) carrying the first printed product from the shuttle feeding component (33), the material-carrying conveying unit (32) laterally transfers the corresponding carrier board (600) to the docking position with the stack code synchronous loading and unloading mechanism (500). The material-carrying conveying unit (32) is also used to laterally transfer the corresponding carrier board (600) to a position directly above the shuttle feeding component (33) after receiving the carrier board (600) carrying the second printed product that is horizontally loaded by the stack code synchronous loading and unloading mechanism (500), and place the carrier board (600) carrying the second printed product on the shuttle feeding component (33) during the process of being driven vertically downward by the lifting unit (31). The oven mechanism (400) is used to bake the first printed product placed on the corresponding carrier board (600). The synchronous loading and unloading mechanism (500) for stacking is used to flexibly dock with the shuttle conveyor mechanism (300) disposed in the corresponding oven mechanism (400), and after receiving the carrier plate (600) carrying the third printed product, push the carrier plate (600) carrying the second printed product onto the shuttle conveyor mechanism (300) disposed in the oven mechanism (400), so that the corresponding shuttle conveyor mechanism (300) conveys the carrier plate (600) carrying the second printed product to the dual printing mechanism (200), and the third printed product is a printed product that has been baked.

2. The dual-platform shuttle printing machine according to claim 1, wherein The shuttle feeding assembly (33) is used to shuttle the carrier plate (600) carrying the second printed product through the two printing assemblies (21) so that the printing assemblies (21) can print the second printed product on the carrier plate (600) in turn, and to return the carrier plate (600) carrying the first printed product from the dual printing mechanism (200) to the corresponding carrier conveying unit (32).

3. The dual-platform shuttle printing machine according to claim 2, wherein The lifting unit (31) comprises a bottom plate (311), a guide column (312), a lifting drive unit (313) and a U-shaped bracket (314); the material carrying and conveying unit (32) comprises a synchronous transmission belt (321), a V-shaped seat (322) and a synchronous drive unit (323); the bottom plate (311) is fixed on the frame (100); the U-shaped bracket (314) is movably connected to the bottom plate (311) via the guide column (312); the U-shaped bracket (314) is also drivingly connected to the lifting drive unit (313) fixed on the bottom plate (311); the synchronous transmission belt (321) is provided on both side walls of the U-shaped bracket (314); a plurality of V-shaped seats (322) are fixed on each of the synchronous transmission belts (321); the two synchronous transmission belts (321) are both drivingly connected to the synchronous drive unit (323); wherein: The lifting drive unit (313) is used to drive the U-shaped bracket (314) to drive the material transport unit (32) to move vertically, so that the material transport unit (32) lifts the carrier plate (600) carrying the first printed product from the shuttle feeding assembly (33) or places the carrier plate (600) carrying the second printed product on the shuttle feeding assembly (33); The synchronous drive unit (323) is used to drive the two synchronous drive belts (321) to synchronously drive the corresponding plurality of V-shaped seats (322) to rotate, and to drive the carrier plate (600) supported by the V-shaped seats (322) to move horizontally to the shuttle feeding assembly (33) located in the U-shaped groove of the U-shaped bracket (314), or to remove the carrier plate (600) located on the shuttle feeding assembly (33).

4. The dual-platform shuttle printing machine according to claim 3, wherein, The lifting drive unit (313) comprises one of the following: a driving cylinder, a ball screw module, an electric cylinder, and / or the synchronous drive unit (323) comprises a servo motor.

5. The dual-platform shuttle printing machine according to claim 3, characterized in that, The shuttle feeding assembly (33) comprises a linear guide rail (34), a sliding table (35), a vacuum suction plate (36), a positioning assembly (37) and a linear motor (38). Two linear guide rails (34) extending along the length direction of the frame (100) are provided on both sides of the frame (100) in the width direction. The linear guide rails (34) are also located on the longitudinal outer sides of the two synchronous transmission belts (321) in terms of the setting position. The sliding table (35) is movably connected to the two linear guide rails (34) and is transmission-connected to the linear motor (38) installed on the frame (100). The vacuum suction plate (36) is arranged on the sliding table (35). The positioning assembly (37) is installed on the sliding table (35) and is distributed around the vacuum suction plate (36). After the material transport unit (32) places the carrier plate (600) carrying the second printed product on the vacuum suction plate (36), the positioning assembly (37) is used to perform transverse and longitudinal calibration on the carrier plate (600) so as to place the carrier plate (600) at a preset position; The vacuum suction plate (36) is used to absorb and fix the corresponding carrier plate (600) after the carrier plate (600) carrying the second printed product is calibrated to a preset position, and to release the corresponding carrier plate (600) after the shuttle feeding component (33) returns the carrier plate (600) carrying the first printed product to dock with the corresponding carrier conveying unit (32); The linear motor (38) is used to drive the sliding table (35) to drive the vacuum suction plate (36) and the positioning assembly (37) to move between a docking position with the material transport unit (32) and a docking position with the dual printing mechanism (200), so as to shuttle the carrier plate (600) carrying the second printed product through the two printing assemblies (21) and return the carrier plate (600) carrying the first printed product to the corresponding material transport unit (32).

6. The double-platform shuttle printing press according to claim 5, characterized in that, The positioning assembly (37) comprises a limiting column (371), a longitudinal push calibration unit (372) and a transverse push calibration unit (373); a limiting column (371) and a longitudinal push calibration unit (372) are each provided at a vertex angle on both lateral sides of the sliding platform (35); a transverse push calibration unit (373) is each fixedly provided on both lateral sides of the sliding platform (35); the longitudinal push calibration unit (372) and the transverse push calibration unit (373) each comprise a driving cylinder (374) and a calibration seat (375), wherein: The two limiting posts (371) are used to be inserted into the limiting holes (61) of the carrier plate (600) when the corresponding carrier plate (600) is placed on the vacuum suction plate (36), so as to initially position the carrier plate (600); The driving cylinders (374) of the longitudinal pushing and alignment unit (372) and the transverse pushing and alignment unit (373) respectively drive the corresponding alignment seats (375) to move in the corresponding directions, so as to drive the corresponding carrier plates (600) to perform lateral and / or longitudinal fine adjustment relative to the limit posts (371) until they move to the preset positions.

7. The dual-platform shuttle printing machine according to claim 2, wherein, The stacking and synchronous loading and unloading mechanism (500) includes a turnover rack (51) and a stacking conveyor (52). The stacking conveyor (52) includes a lifting transmission component (54) provided on the side wall of the machine case (53). The lifting transmission component (54) is drivingly connected to the upper conveyor (55) and the lower conveyor (56) which are stacked. The upper conveyor (55) and the lower conveyor (56) are both arranged to face the shuttle transfer mechanism (300) and the turnover rack (51). Among them, After the oven mechanism (400) bakes the first printed product into the third printed product, the lifting transmission component (54) drives the upper conveyor (55) and the lower conveyor (56) to move vertically, so that the lower conveyor (56) and the upper conveyor (55) are sequentially and movably docked with the shuttle transfer mechanism (300); The lower conveyor (56), when being driven to be docked with the shuttle transfer mechanism (300), receives the carrier plate (600) carrying the third printed product pushed by the corresponding shuttle transfer mechanism (300), and when being flush with the corresponding storage layer (511) of the turnover rack (51), conveys the carrier plate (600) carrying the third printed product to the corresponding storage layer (511); The upper conveyor (55), when being driven to be docked with the shuttle transfer mechanism (300), conveys the carrier plate (600) carrying the second printed product to the shuttle transfer mechanism (300) located in the corresponding oven mechanism (400), and before being conveyed to be docked with the shuttle transfer mechanism (300), receives the carrier plate (600) carrying the second printed product loaded from the corresponding storage layer (511).

8. The double-platform shuttle printing press according to claim 2, wherein, The double printing mechanism (200) further includes a rotating shaft assembly (22) and a lifting component (23) respectively arranged on the longitudinal front and rear sides of each printing component (21). Among them, The rotating shaft assembly (22) includes a rotating shaft mounting seat (221), a rotating shaft (222) and a shaft seat (223). The rotating shaft (222) is installed on the frame (100) through a plurality of rotating shaft mounting seats (221). The rotating shaft (222) is also connected to the shaft seat (223) fixed to the bottom of the frame seat (211) of the corresponding printing component (21). The frame seat (211) rotates following the rotating shaft (222) to enable the printing component (21) to pivot and open and close; The lifting assembly (23) includes a speed reducer (231), a transmission shaft (232), a transmission cam (233) and a crank (234). The speed reducer (231) is fixedly arranged on the tabletop of the frame (100) and is in transmission connection with the transmission shaft (232) installed through a bearing seat (235). The transmission cam (233) is arranged on the transmission shaft (232). The crank (234) is fixedly arranged at the bottom of the front side in the longitudinal direction of the frame seat (211). The speed reducer (231) drives the transmission cam (233) to rotate eccentrically through the transmission shaft (232), and intermittently pushes the crank (234) to drive the frame seat (211) to drive the printing assembly (21) to rotate and pivot open and close. Wherein, before the shuttle feeding assembly (33) drives the corresponding carrier plate (600) to move to a position below the printing assembly (21) and after the printing assembly (21) completes the corresponding printing, the lifting assembly (23) lifts the printing assembly (21) to open, so that the shuttle feeding assembly (33) drives the corresponding carrier plate (600) to move into or out of the double printing mechanism (200); when the lifting assembly (23) releases the lifting of the printing assembly (21), the frame seat (211) is horizontally placed and is flush with the shuttle feeding assembly (33) that shuttles to a position below the printing assembly (21), so that the printing assembly (21) prints the second printed matter located on the corresponding carrier plate (600).

9. The dual-platform shuttle printing press according to claim 8, wherein, The printing assembly (21) further includes slide rails (24) arranged on the transverse side walls of the frame seat (211) and extending longitudinally. The two slide rails (24) are movably connected to a gantry sliding seat (25) spanning transversely. A driving unit (26) for driving the gantry sliding seat (25) to slide along the slide rails (24) is arranged on the frame seat (211). A screen plate support frame (27) connected to the frame seat (211) is further arranged inside the frame seat (211). A squeegee telescopic bracket (28) and an ink return knife telescopic bracket (29) are further arranged on the gantry sliding seat (25). One end of the squeegee telescopic bracket (28) far away from the gantry sliding seat (25) is connected to a squeegee bracket (213) in transmission connection with a squeegee driving unit (212). One end of the ink return knife telescopic bracket (29) far away from the gantry sliding seat (25) is connected to an ink return bracket (215) in transmission connection with an ink return driving unit (214). Wherein, When the shuttle transmission mechanism (300) conveys the carrier plate (600) carrying the second printed matter to a position below the corresponding printing assembly (21), the lifting assembly (23) drives the printing assembly (21) to close, so that the screen plate support frame (27) drives the screen plate to be placed on the corresponding second printed matter; After the stencil is placed on the corresponding second printed product, the squeegee driving unit (212) drives the squeegee installed on the squeegee bracket (213) to feed through the squeegee telescopic bracket (28), and the flood blade driving unit (214) drives the flood blade installed on the flood blade bracket (215) to feed through the flood blade telescopic bracket (29), and cooperates with the driving unit (26) to drive the gantry sliding seat (25) to move longitudinally, so as to print the second printed product placed on the corresponding carrier plate (600).

10. A printing method, comprising the dual-platform shuttle printing press according to any one of claims 1 to 9, characterized in that, The printing method includes the following steps: Step S1: While another shuttle transfer mechanism (300) transfers the carrier plate (600) carrying the first printed product to one of the two oven mechanisms (400) for baking, one shuttle transfer mechanism (300) transfers the carrier plate (600) carrying the third printed product corresponding to the previous printing to the corresponding palletizing synchronous loading and unloading mechanism (500) at the docking position with the corresponding one of the oven mechanisms (400), then receives the carrier plate (600) carrying the second printed product pushed by one palletizing synchronous loading and unloading mechanism (500), and transfers the received carrier plate (600) to the double printing mechanism (200); Step S2: One shuttle transfer mechanism (300) transfers the corresponding carrier plate (600) to drive a plurality of second printed products to be sequentially placed below the two printing assemblies (21), so that the two printing assemblies (21) sequentially perform two-color printing or double-color printing on each second printed product; Step S3: After the two printing assemblies (21) complete the printing of all second printed products and obtain the first printed product, one shuttle transfer mechanism (300) transfers the corresponding carrier plate (600) to drive a plurality of first printed products to shuttle back to the corresponding oven mechanism (400) for baking. Another shuttle transfer mechanism (300) located in the corresponding oven mechanism (400), after completing the transfer of the carrier plate (600) carrying the third printed product to another palletizing synchronous loading and unloading mechanism (500), receives the carrier plate (600) carrying the second printed product pushed by another palletizing synchronous loading and unloading mechanism (500), and transfers the received carrier plate (600) to the double printing mechanism (200) for printing; Step S4: The shuttle transfer mechanisms (300), the oven mechanisms (400) and the palletizing synchronous loading and unloading mechanisms (500) located on the transverse two sides of the double printing mechanism (200), cooperate with the double printing mechanism (200) to repeat the operations of Step S1 to Step S3 until the printing of the preset number of times is completed.

Images