Printing equipment and printing system

Abstract

The utility model discloses printing equipment and a printing system, relates to the technical field of solar cell manufacturing, and is used for solving the problem of relatively poor grid line printing efficiency. The printing equipment comprises a conveying mechanism, a printing mechanism and a printing mechanism, the multiple bearing tables are arranged on the conveying mechanism, can circularly move along the conveying path and are used for bearing the sheets; the sheet feeding mechanism comprises a plurality of sheet feeding units arranged side by side, and each sheet feeding unit is used for conveying one sheet to the corresponding bearing table; the multiple printing mechanisms are arranged side by side, each printing mechanism comprises a translation assembly and a printing assembly, the printing assemblies are arranged on the translation assemblies, and the translation assemblies are used for adjusting the printing assemblies to print the sheets in the direction parallel to the conveying path of the conveying mechanism at the printing mechanisms; and the sheet discharging mechanism is used for discharging the sheets on the bearing table.

Description

Technical Field

[0001] This utility model relates to the field of solar cell manufacturing technology, and in particular to a printing device and printing system. Background Technology

[0002] Currently, in the manufacturing process of solar cells, screen printing is commonly used to print grid lines on the conductive paste of the cell, so that the grid line paste forms an ohmic contact with the silicon wafer, producing high-efficiency solar cells.

[0003] Currently, single-head printing presses are used for grid line printing, but the printing efficiency of single-head printing presses is relatively low. Utility Model Content

[0004] The purpose of this invention is to provide a printing device and printing system to improve the efficiency of grid printing.

[0005] In a first aspect, this utility model provides a printing apparatus, comprising:

[0006] The transmission mechanism has a circular transmission path;

[0007] Multiple support platforms are mounted on the transmission mechanism. The support platforms can move cyclically along the transmission path and are used to support the sheet material.

[0008] The sheet feeding mechanism includes multiple sheet feeding units arranged side by side, each sheet feeding unit being used to feed a sheet onto a corresponding carrier platform;

[0009] Multiple printing units are arranged side by side. Each printing unit includes a translation component and a printing component. The printing component is disposed on the translation component. The translation component is used to adjust the printing component to print on the sheet in a direction parallel to the transmission path of the transmission mechanism at the printing unit.

[0010] The film output mechanism is used to output the film from the carrier platform.

[0011] With the above technical solution, multiple printing units are arranged side by side, each dedicated to independently printing one sheet. Compared to existing single-head printing units, the multiple printing units in this application can independently print different sheets from the incoming material, with no interference between the printing operations. This allows for flexible adjustment of printing multiple sheets, facilitating independent control of the operation of each printing unit and improving the flexibility of grid printing. Furthermore, it enables simultaneous printing of multiple sheets, increasing the efficiency of grid printing.

[0012] In some possible implementations, the side length of the rectangular support platform along the transmission path is greater than the short side length of the entire solar cell, the side length of the rectangular support platform perpendicular to the transmission path is greater than the long side length of the entire solar cell, and the sheet is placed on the rectangular support platform in a direction parallel to the transmission path along the direction of the grid lines to be printed. The sheet can be a whole solar cell or a segmented solar cell.

[0013] Thus, when the direction in which multiple feeding mechanisms convey sheet material is consistent with the direction of the solar cells carried on the carrier platform, the long side of the feeding unit corresponds to the long side of the entire solar cell, and the short side of the feeding unit corresponds to the short side of the entire solar cell. That is, the spacing between side-by-side feeding units is the distance between their short sides. This helps reduce the spacing between multiple feeding units arranged side-by-side, thereby saving factory space. Furthermore, it can directly accommodate the printing of whole solar cells or sectional solar cells without requiring any dimensional modifications to the carrier platform of the printing equipment, saving on equipment modification costs.

[0014] In some possible implementations, the carrier platform is driven by wireless power. This eliminates the need for long cables for power connections, simplifying the equipment wiring. Since no cables are required, the ring-shaped magnetic levitation transmission mechanism can have a longer transmission path and accommodate more carrier platforms and printing mechanisms to simultaneously transmit and print on more sheets, thus improving processing efficiency.

[0015] In some possible implementations, a T-slot is provided inside the support platform, running through the transmission path, and a mover drive is installed inside the T-slot;

[0016] The transmission mechanism includes a T-shaped guide rail with a T-shaped cross section, the T-shaped guide rail passes through a T-shaped groove, and the T-shaped guide rail is provided with a stator drive that is opposite to the mover drive. The mover drive and the stator drive are used to form magnetic levitation power to drive the support platform to move relative to the T-shaped guide rail.

[0017] With the above technical solution, the mover and stator drives generate magnetic levitation power after being energized. The stator drive on the T-shaped guide rail of the annular magnetic levitation transmission mechanism remains stationary, driving the mover drive on the support platform to move together with the support platform relative to the T-shaped guide rail. The mover drive is located in the T-slot within the support platform, and the stator drive is located on the T-shaped guide rail opposite to the mover drive. Since the mover drive is hidden within the T-slot, and the stator drive at the location of the support platform is also located within the T-slot, it can protect the mover and stator drives from contact with ink that may be spilled during printing, avoiding wear. Furthermore, being hidden within the support platform reduces the safety risks to external operators, and the magnetic levitation mechanism has a compact space.

[0018] In some possible implementations, a slider is also provided at the bottom of the support platform, and the transmission mechanism includes a slide rail located on at least one side of the T-shaped guide rail, with the slider and slide rail engaging in guiding movement. This arrangement improves the stability of the support platform's movement during its movement, thanks to the guiding interaction between the slider at the bottom of the support platform and the slide rail below.

[0019] In some possible implementations, the printing equipment also includes multiple sheet rotation mechanisms, which include:

[0020] Fixture;

[0021] A rotary drive component is mounted on a fixed frame, and the rotation axis of the rotary drive component is in the vertical direction;

[0022] The vacuum chuck is detachably connected to the rotary output end of the rotary drive component. The vacuum chuck is located above the corresponding sheet feeding unit. The rotary drive component is used to drive the vacuum chuck to rotate horizontally, and the vacuum chuck is used to pick up the sheet.

[0023] When the sheet material is conveyed from the feeding unit to the sheet rotation mechanism, a vacuum chuck picks it up as needed. A rotary drive component then rotates the vacuum chuck and sheet horizontally, adjusting the sheet's orientation in the horizontal plane. Afterward, the vacuum chuck detaches, and the sheet falls back onto the feeding unit. This allows for further adjustment of the sheet's orientation on the carrier platform and at the printing mechanism, improving printing alignment accuracy. Furthermore, the vacuum chuck is detachably connected to the rotary output end of the rotary drive component, facilitating the replacement of appropriately sized vacuum chucks according to the sheet size and improving compatibility with sheets of different dimensions.

[0024] In some embodiments, the transmission path of the transmission mechanism is a rectangular loop path, which includes two sets of opposing first straight paths and second straight paths connected together; the infeed station and the outfeed station are located next to the two first straight paths respectively; the printing station is located next to one of the second straight paths.

[0025] In some possible implementations, the sheet ejection mechanism includes multiple sheet ejection units arranged side by side, each unit ejecting a sheet from its corresponding support platform. With this configuration, multiple sheet ejection units can simultaneously convey multiple sheets to the next drying process. This allows multiple sheet ejection units to supply sheets to the same drying equipment, enabling the drying equipment to dry the sheets more quickly, or to dry more sheets within the same timeframe, thus shortening the drying process time.

[0026] In some possible implementations, each printing unit includes:

[0027] frame;

[0028] A lifting assembly, mounted on the frame, is used for lifting movement. A translation assembly is located on the side of the lifting assembly closest to the operator's position. A printing assembly is located on the side of the translation assembly closest to the operator's position. The printing assembly, mounted on the translation assembly, is used for printing.

[0029] With the above technical solution, each printing unit drives its printing component to move independently up and down via its own lifting assembly, and drives its printing component to move horizontally along a direction parallel to the transport path of the transport mechanism at the printing station via its own translation assembly. Each printing component prints independently, achieving independent movement of multiple printing units without interference, thus improving the flexibility of the printing equipment. Furthermore, the translation assembly is located on the side of the lifting assembly closest to the operator's position, and the printing component is located on the side of the translation assembly closest to the operator's position. The printing component directly faces the operator, ensuring no other parts obstruct the view between the operator and the printing component, facilitating the operator's observation of the printing process.

[0030] In some possible implementations, the lifting component includes:

[0031] A lifting frame is vertically movable on the machine frame, and a translation component is mounted on the lifting frame;

[0032] The first lead screw mechanism includes a first lead screw and a first lead screw nut. The first lead screw is vertically arranged and its two ends are rotatably connected to the frame. The first lead screw nut is fixed to the lifting frame.

[0033] The first motor is driven to one end of the first lead screw and is used to drive the first lead screw to rotate.

[0034] And / or, the translation component includes:

[0035] A translation frame is movable along the printing direction and mounted on a lifting frame, and the printing assembly is mounted on the translation frame;

[0036] The second lead screw mechanism includes a second lead screw and a second lead screw nut. The second lead screw is arranged along the printing direction and its two ends are rotatably connected to the lifting frame. The second lead screw nut is fixed to the translation frame.

[0037] The second motor is connected to one end of the second lead screw and is used to drive the second lead screw to rotate.

[0038] With the above technical solution, both the lifting component and the translation component can achieve lifting and translation movements, and the structure is simple.

[0039] In some possible implementations, the printing mechanism also includes an angle adjustment component, which is mounted on the frame, and a lifting component is mounted on the angle adjustment component. The angle adjustment component is used to adjust the placement angle of the printing component in the horizontal plane.

[0040] The angle adjustment components include:

[0041] Base frame;

[0042] An arc-shaped guide rail is horizontally mounted on the base frame, and the arc-shaped guide rail has an arc.

[0043] An arc-shaped slider is mounted on the frame and engages with the arc-shaped guide rail.

[0044] A drive component, connected to the base frame and the frame, is used to drive the frame to rotate relative to the base frame in a horizontal plane.

[0045] By adopting the above technical solution, the angle adjustment component further increases the degree of freedom of the printing component adjustment, further improves the flexibility of the printing posture of the printing component, and can further adapt to different placement positions of the sheet on the carrier platform, thereby improving printing accuracy.

[0046] In some possible implementations, the platform includes:

[0047] Support frame;

[0048] A conveying component, mounted on a support frame, is used to support the conveying sheet.

[0049] An adsorption component, mounted on a support frame, is used to adsorb and fix the sheet material.

[0050] When the above technical solution is adopted, the sheet material is supported and conveyed by the conveying component, and the placement position of the sheet material on the carrier platform is adjusted. After the sheet material is placed in the correct position, the adsorption component is used to adsorb and fix the sheet material on the carrier platform to prevent the sheet material from shifting during the transmission and printing process, thus ensuring printing accuracy.

[0051] In some possible implementations, the printing equipment also includes multiple first detection mechanisms positioned between the film feeding mechanism and the printing mechanism. These first detection mechanisms detect the state of the sheet material on the corresponding carrier platform and provide feedback to the corresponding printing mechanism via wireless signals. With this configuration, before the carrier platform moves to the printing station, the first detection mechanisms detect the state of the sheet material on the carrier platform, such as its placement. The printing mechanism then adjusts the printing position of the printing components based on the feedback, thereby improving printing accuracy. The wireless signal transmission between the printing mechanism and the first detection mechanisms eliminates the need for cumbersome cable routing and can be applied to transmission mechanisms with a loop transmission path without affecting signal transmission. Compared to the original circular plug-in wiring, it allows for long-distance information transmission without being limited by the size of the loop.

[0052] In some possible implementations, the printing equipment also includes a second inspection mechanism positioned between the printing mechanism and the film output mechanism. This second inspection mechanism is used to inspect the printing quality of the sheet material located on the corresponding support platform. This arrangement allows the second inspection mechanism to check the printing quality of the sheet material after printing; if the printing quality is unsatisfactory, it facilitates subsequent screening of the sheet material.

[0053] Secondly, this utility model also provides a printing system, including a first printing device, a drying device, a sintering device, and a dispensing device; the first printing device is a printing device as described in any of the above, the drying device is used to dry the sheet printed by the printing device, the sintering device is used to sinter the sheet dried by the drying device, and the dispensing device is used to dispense adhesive onto the sintered sheet.

[0054] Since this printing system uses the printing equipment of the first aspect, it has the same beneficial effects as the first aspect, which will not be elaborated further.

[0055] In some possible implementations, the printing system further includes a second printing device, which is different from the first printing device. The second printing device can be selected based on the required printing precision. Attached Figure Description

[0056] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0057] Figure 1 A schematic diagram of the structure of a printing device provided in an embodiment of this utility model;

[0058] Figure 2 for Figure 1 A top view of the printing equipment in the diagram;

[0059] Figure 3 A schematic diagram of the printing mechanism of a printing device provided in an embodiment of this utility model;

[0060] Figure 4 for Figure 3 A top view of the printing press.

[0061] Figure 5 A schematic diagram illustrating the cooperation between a support platform and a transmission mechanism in a printing device, provided for an embodiment of this utility model;

[0062] Figure 6 This is a schematic diagram of another printing device provided in an embodiment of the present utility model;

[0063] Figure 7 This is a schematic diagram of the sheet rotation mechanism of another printing device in an embodiment of the present invention.

[0064] Reference numerals: 1 for transmission mechanism, 11 for T-shaped guide rail, 12 for stator drive, 13 for slide rail, 2 for support platform, 21 for conveying component, 22 for support frame, 23 for mover drive, 24 for slider, 25 for T-slot, 3 for film feeding mechanism, 31 for film feeding unit, 4 for first detection mechanism, 5 for printing mechanism, 51 for frame, 511 for vertical frame, 512 for vertical slide rail, 52 for lifting assembly, 521 for first motor, 522 for lifting frame, 5221 for horizontal plate, 52 22 is a vertical plate, 523 is the first lead screw, 524 is the first lead screw nut, 53 is a translation component, 531 is a translation frame, 532 is a horizontal slide rail, 533 is the second motor, 54 is a printing component, 55 is an angle adjustment component, 551 is a base frame, 552 is an arc-shaped slider, 553 is an arc-shaped guide rail, 6 is the second detection mechanism, 7 is the sheet output mechanism, 71 is the sheet output unit, 8 is the sheet material, 9 is the sheet material rotation mechanism, 91 is a fixing frame, 92 is a rotation drive component, and 93 is a vacuum suction cup. Detailed Implementation

[0065] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0066] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0068] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0069] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0070] like Figures 1-2 As shown, this utility model embodiment provides a printing device, including a transmission mechanism 1, multiple carrier platforms 2, a film feeding mechanism 3, multiple printing mechanisms 5, and a film output mechanism 7. The transmission mechanism 1 has a circular transmission path, and the multiple carrier platforms 2 are disposed on the transmission mechanism 1, capable of cyclically moving along the circular transmission path. Each carrier platform 2 is used to carry a sheet 8 (such as a battery cell, semiconductor sheet, etc., to be printed with paste). The film feeding mechanism 3 includes multiple side-by-side film feeding units 31 arranged beside the transmission path of the transmission mechanism 1, each film feeding unit 31 used to feed a sheet 8 onto the corresponding carrier platform 2. The multiple printing mechanisms 5 are arranged independently side-by-side beside the transmission path; the number of printing mechanisms 5 can be two, three, four, five, or more, and the number of film feeding units 31 and the number of sheets output by the film output mechanism 7 can be the same as the number of printing mechanisms 5. Each printing mechanism 5 includes a translation component 53 and a printing component 54. The printing component 54 is disposed on the translation component 53. The translation component 53 is used to adjust the printing component 54 to print the sheet 8 in a direction parallel to the transmission path of the transmission mechanism 1 at the printing mechanism 5. That is, the printing mechanism 5 is used to independently print a sheet 8 located on the corresponding carrier platform 2, and the printing direction of the printing mechanism 5 is parallel to the transmission path of the transmission mechanism 1 at the printing mechanism 5. The sheet output mechanism 7 is arranged next to the transmission path and is used to output the sheet 8 on the carrier platform 2.

[0071] When the printing equipment is working, the sheet material 8 to be printed is placed on the feeding mechanism 3. Each feeding unit 31 of the feeding mechanism 3 feeds a sheet material 8 to each carrier platform 2 located at the feeding mechanism 3. Then, the multiple carrier platforms 2 carrying the sheet material 8 move to the printing mechanism 5 on the transmission mechanism 1. Each carrier platform 2 moves to a corresponding printing mechanism 5. The multiple printing mechanisms 5 can independently complete the printing of a corresponding sheet material 8. In specific operation, the multiple printing mechanisms 5 can print at the same time to improve printing efficiency. The printing direction of each printing mechanism 5 is parallel to the transmission path at the printing mechanism 5. Then, the carrier platform 2 moves to the output mechanism 7 on the transmission mechanism 1. The output mechanism 7 outputs the sheet material 8 carried on each carrier platform 2.

[0072] This embodiment employs a ring-shaped transport path, where the carrier platform 2 can be positioned on the ring-shaped transport path, closer to the outer edge compared to the disc carrier platform. In other words, the ring-shaped transport path provides more outer space, allowing multiple carrier platforms 2 and multiple printing mechanisms 5 to be arranged side-by-side and printing along the transport path direction, thus facilitating operator work. Furthermore, the film feeding mechanism 3 also includes multiple side-by-side film feeding units 31, capable of simultaneously feeding films 8 to multiple carrier platforms 2, and allowing multiple printing mechanisms 5 to simultaneously print on multiple films 8, further improving printing efficiency.

[0073] In addition, multiple printing units 5 are set up side by side and independently, with each printing unit 5 dedicated to printing one sheet 8 independently. This allows for flexible and independent control of the operation of each printing unit 5, thereby improving the flexibility of grid printing. For example, if the sheet 8 on a certain carrier stage 2 is not functioning properly, the corresponding printing unit can be controlled not to print, thus reducing waste of printing materials.

[0074] In one possible embodiment, the support platform 2 is a rectangular support platform, the side length of the rectangular support platform along the transmission path is greater than the short side length of the whole battery cell, the side length of the rectangular support platform perpendicular to the transmission path is greater than the long side length of the whole battery cell, and the sheet 8 is placed on the support platform 2 in a direction parallel to the transmission path along the printing direction, and the sheet 8 is a whole battery cell or a segmented battery cell.

[0075] The printing direction can correspond to the direction in which the printing assembly 54, located below the printing assembly 54, is transported from the carrier platform 2. Alternatively, the printing direction can also be the direction of fine grid extension. If the sheet 8 is a whole solar cell, and the two sets of sides of the whole solar cell have different lengths, then on the carrier platform 2, the short side of the whole solar cell is parallel to the transport path, i.e., it is transported below the printing mechanism 5, and the short side of the whole solar cell is parallel to the printing direction of the printing mechanism 5. After printing, the whole solar cell is transported with the carrier platform 2 to the sheet ejection mechanism 7 to complete the sheet ejection. Correspondingly, the long and short sides of the rectangular carrier platform carrying the whole solar cell are also larger than the long and short sides of the whole solar cell, respectively. When the direction of conveying sheet 8 by multiple feeding mechanisms 3 is consistent with the direction of the battery cell carried on the support platform 2, the long side of the feeding unit 31 corresponds to the long side of the whole battery cell, and the short side of the feeding unit 31 corresponds to the short side of the whole battery cell. That is, the spacing between the side-by-side feeding units is the distance between the short sides of the feeding units 31. This helps to reduce the spacing between multiple feeding units 31 arranged side by side, thereby saving factory space.

[0076] It should be noted that sheet 8 is a square battery cell, and the long side in the above embodiment can be replaced with the side length of the corresponding square; this application does not limit this. Accordingly, if sheet 8 is square, then the support platform 2 can also be a square support platform.

[0077] If sheet 8 is a half-cell battery, then the half-cell battery rests on the support platform 2 with its long side parallel to the transport path. Typically, a whole cell battery is cut into half-cells along a direction parallel to its short side. Therefore, the placement direction of the half-cell battery and the whole cell battery is actually the same; the half-cell battery simply doesn't completely fill the rectangular support platform. In other words, this embodiment can directly accommodate the printing of whole cells or sectional cells without requiring any dimensional modifications to the support platform of the printing equipment, thus saving equipment modification costs.

[0078] It should be noted that a half-cell is typically half of a full cell. It is cut in half along one side parallel to the full cell, resulting in two half-cells. The side that was cut in half becomes the shorter side of the half-cell, and the other side becomes the longer side. In other words, the shorter side of the full cell corresponds to the longer side of the half-cell. Half of the longer side of the full cell becomes the shorter side of the half-cell.

[0079] It is understood that the support platform 2 in this embodiment can also support other segments, such as 3 segments, 4 segments, 6 segments, etc., and this application does not limit this. In addition, when the segment is a half segment, the half segment can be supported in the middle position of the support platform 2.

[0080] In some embodiments, such as Figure 5As shown, the transmission mechanism 1 and the support platform 2 are magnetically levitated. For example, the support platform 2 has a T-shaped groove 25 extending along the transmission path. The T-shaped groove 25 includes a horizontal groove and a vertical groove. The lower end of the vertical groove extends through the support platform 2. A mover drive 23 is installed inside the T-shaped groove 25. Specifically, the mover drive 23 can be installed on the inner wall of the T-shaped groove 25 facing upwards from the horizontal groove. The transmission mechanism 1 includes a T-shaped guide rail 11 with a T-shaped cross-section. The T-shaped guide rail 11 includes mutually perpendicular horizontal plates and vertical plates. The T-shaped guide rail 11 passes through the T-shaped groove 25, that is, the horizontal plate passes through the horizontal groove and the vertical plate passes through the vertical groove. The T-shaped guide rail 11 is provided with a stator drive 12 that is opposite to the mover drive 23. Specifically, the stator drive 12 can be provided on the lower surface of the horizontal plate. There are two mover drives 23 and two stator drives 12, which are located on both sides of the vertical plate of the T-shaped guide rail 11. The mover drive 23 and the stator drive 12 are used to form magnetic levitation power to drive the support platform 2 to move relative to the T-shaped guide rail 11. Since the mover drive 23 is located in the T-slot 25 within the support platform 2, and the stator drive 12 is located on the T-rail 11 opposite to the mover drive 23, and the stator drive 12 at the location of the support platform 2 is also located in the T-slot 25 and can be located on the lower surface of the T-rail 11, the mover drive 23 and the stator drive 12 are protected from contact with ink that may be spilled during printing, thus avoiding wear between the mover drive 23 and the stator drive 12. Furthermore, being hidden within the support platform 2 reduces the safety risks to external operators. In addition, the magnetic levitation mechanism has a compact structure and occupies little space.

[0081] In some other possible implementations, a slider 24 is also provided at the bottom of the support platform 2, and the transmission mechanism 1 also includes a slide rail 13 located on at least one side of the T-shaped guide rail 11. Slide rails 13 can be provided on both sides of the T-shaped guide rail 11. Both the slide rail 13 and the T-shaped guide rail 11 are annular structures, and the slider 24 is guided and moved in coordination with the slide rail 13. During operation, after the mover drive 23 and the stator drive 12 are energized, they generate magnetic levitation power. The stator drive 12 on the T-shaped guide rail 11 remains stationary, driving the support platform 2 with the mover drive 23 to move relative to the T-shaped guide rail 11. During the movement, the slider 24 at the bottom of the support platform 2 is guided and coordinated with the slide rail 13 below, which improves the stability of the movement of the support platform 2.

[0082] In some embodiments, the carrier platform 2 is driven by wireless power. That is, the components of the carrier platform 2 that require power, such as the mover drive 23, the conveying component 21, and the adsorption component, are connected wirelessly. In this way, there is no need to set up long cables to connect to the carrier platform 2 for power supply, which simplifies the wiring of the equipment. Also, the movement of the carrier platform 2 is not affected by the interference of cables. Since no cables are required, the ring-shaped transmission mechanism 1 can be set with a longer transmission path and more carrier platforms 2 and printing mechanisms 5 can be arranged to simultaneously transmit and print more sheets, thereby improving printing efficiency.

[0083] like Figure 1 and Figure 2 As shown, in some embodiments, the transmission path of the transmission mechanism 1 is a rectangular loop path, which includes two sets of opposing first straight paths and second straight paths. The first straight paths and second straight paths are connected and can be transitioned through an arc path. The film feeding mechanism 3 and the film output mechanism 7 are located next to the two first straight paths, respectively. The printing mechanism 5 is located next to one of the second straight paths. This layout facilitates the connection of the film feeding mechanism 3 and the film output mechanism 7 with the film feeding transmission line and the film output transmission line, respectively, and provides sufficient operating space for the printing mechanism 5. When the printing equipment also includes a first detection mechanism 4 and a second detection mechanism 6, the first detection mechanism 4, the printing mechanism 5, and the second detection mechanism 6 are arranged sequentially and all located next to the same second straight path, facing the operator's side, which facilitates equipment maintenance and operation. In addition, multiple turnover support platforms 2 can be set on another second straight path to shorten the distance and time for the support platform 2 to move from the film output mechanism 7 to the film feeding mechanism 3, thereby improving the efficiency of the support platform's cyclic movement.

[0084] Of course, the transmission path of the transmission mechanism 1 can also be in other forms, such as ellipse, trapezoid, triangle, etc., as long as the support platform 2 can move on it and it is convenient to arrange various mechanisms. It is not limited to the forms listed in this embodiment.

[0085] like Figure 1 and Figure 2As shown, in some embodiments, the number of feeding units 31 can be equal to the number of printing mechanisms 5. With this configuration, one feeding unit 31 can independently transport one sheet 8, further improving the operational flexibility of the equipment. When the corresponding number of carrier platforms 2 move to the feeding mechanism 3, multiple feeding units 31 can simultaneously transport the corresponding number of sheets 8 to the corresponding carrier platform 2. Multiple carrier platforms 2 can also move synchronously to the printing mechanism 5, transferring the corresponding number of sheets 8 to the printing mechanism 5 at once, saving transmission time. Of course, the number of feeding units 31 can also be less than the number of printing mechanisms 5. In this case, one or more feeding units 31 need to transport the sheets 8 to different carrier platforms 2 in batches, ultimately achieving the same goal of transferring the predetermined number of sheets 8 to the printing mechanism 5.

[0086] For example, each sheet feeding unit 31 can be a conveyor belt, a paper winding mechanism, or a conveyor roller mechanism, etc. In order to provide stable support for the sheet, the sheet feeding unit 31 can include at least two narrow conveyor belts or paper winding mechanisms arranged side by side with spacing, or the sheet feeding unit 31 can also include a wider conveyor belt or paper winding mechanism. Sufficient gaps are left between each sheet feeding unit 31 to avoid mutual interference and collision during the transfer of the sheet.

[0087] like Figure 1 and Figure 2 As shown, in some embodiments, the sheet feeding mechanism 7 includes multiple sheet feeding units 71 arranged side-by-side along the transmission path. Each sheet feeding unit 71 is used to feed out one sheet 8 from the corresponding carrier platform 2. This arrangement allows one sheet feeding unit 71 to independently transport one sheet 8, further improving the operational flexibility of the equipment. The number of sheet feeding units 71 can be equal to the number of printing mechanisms 5. Multiple carrier platforms 2 can transmit a corresponding number of sheets 8 to the sheet feeding mechanism 7 at once, and multiple sheet feeding units 71 can feed out the sheets 8 from the corresponding carrier platforms 2 at once. Afterward, they synchronously move back to the sheet feeding mechanism 3, saving transmission time and improving the recycling efficiency of the carrier platforms 2. Of course, the number of sheet feeding units 71 can also be less than the number of printing mechanisms 5. In this case, one or more sheet feeding units 71 need to feed the sheets 8 from different carrier platforms 2 in batches, ultimately achieving the same goal of feeding out a predetermined number of sheets 8.

[0088] For example, each sheet output unit 71 can be a conveyor belt, a paper winding mechanism, or a conveyor roller mechanism, etc. To provide stable support for the sheet, the sheet output unit 71 can include at least two narrow conveyor belts or paper winding mechanisms arranged side by side with spacing, or the sheet output unit 71 can also include a wider conveyor belt or paper winding mechanism. Sufficient gaps are left between each sheet output unit 71 to avoid mutual interference and collision during the transfer of the sheet.

[0089] like Figure 3As shown, in some embodiments, each printing mechanism 5 includes a frame 51, a lifting assembly 52, a translation assembly 53, and a printing assembly 54; wherein, the printing assembly 54 is disposed on the side of the translation assembly 53 near the operator's position, and the translation assembly 53 drives the printing assembly 54 to move horizontally in a direction parallel to the transmission path of the transmission mechanism 1 at the printing mechanism 5; the translation assembly 53 is disposed on the side of the lifting assembly 52 near the operator's position, and the lifting assembly 52 drives the translation assembly 53 and the printing assembly 54 to rise and fall together, the lifting assembly 52 is disposed on the frame 51, and the frame 51 provides support for the entire printing mechanism 5, and the printing assembly 54 is used to print one sheet 8 at a time.

[0090] With the above technical solution, each printing unit 5 drives its printing component 54 to move independently up and down via its own lifting component 52, and drives its own translation component 53 to move horizontally along the direction parallel to the transmission path of the transmission mechanism 1 at the printing unit 5. Each printing component 54 independently prints a sheet 8, realizing the independent movement of multiple printing units 5 without interference, thus improving the flexibility of the printing equipment. Furthermore, the translation component 53 is located on the side of the lifting component 52 closest to the operator's position, and the printing component 54 is located on the side of the translation component 53 closest to the operator's position, directly facing the operator. This ensures that there are no other parts obstructing the operator's view of the printing process, facilitating the operator's observation of the printing process.

[0091] For example, such as Figure 3 and Figure 4 As shown, the lifting assembly 52 can be a screw-driven mechanism. For example, the lifting assembly 52 includes a lifting frame 522, a first screw mechanism, and a first motor 521. A vertical slide rail 512 is provided on the frame 51. The lifting frame 522 has a slider that cooperates with the vertical slide rail 512. The vertical movement of the lifting frame 522 on the frame 51 is achieved through the cooperation of the slider and the vertical slide rail 512. The translation component 53 is provided on the lifting frame 522 and moves vertically together with the lifting frame 522. The first screw mechanism includes a first screw 523 and a first screw nut 524. The first screw nut 524 is fixed to the lifting frame 522. The first screw 523 is vertically arranged and its two ends are rotatably connected to the frame 51. One end of the first screw 523 is driven and connected to the first motor 521. The first motor 521 drives the first screw 523 to rotate, which drives the first screw nut 524 and the lifting frame 522 to move vertically relative to the frame 51, thereby achieving lifting.

[0092] For example, the translation component 53 can also be a lead screw drive mechanism. For instance, the translation component 53 includes a translation frame 531, a second lead screw mechanism, and a second motor 533. The translation frame 531 has a slider, and the lifting frame 522 of the lifting component 52 has a horizontal slide rail 532 that cooperates with the slider. The extension direction of the horizontal slide rail 532 is parallel to the transmission path of the transmission mechanism 1 at the printing mechanism 5, i.e., the printing direction. The cooperation between the slider and the horizontal slide rail 532 enables the translation frame 531 to move along the lifting frame 522 parallel to the transmission path. The horizontal movement connection is as follows: the printing component 54 is mounted on the translation frame 531 and moves horizontally along the direction parallel to the transmission path together with the translation frame 531; the second lead screw mechanism includes a second lead screw and a second lead screw nut, the second lead screw is horizontally set and its two ends are rotatably connected to the lifting frame 522, the second lead screw nut is fixed to the translation frame 531, one end of the second lead screw is driven and connected to the second motor 533, the second motor 533 drives the second lead screw to rotate, thereby causing the second lead screw nut and the translation frame 531 to move horizontally relative to the lifting frame 522.

[0093] Of course, the lifting and translation components can also adopt other structural forms, such as gear and rack, as long as lifting and translation can be achieved. Alternatively, the translation component can be mounted on the frame, the lifting component on the translation component, and the printing component on the lifting component, thus achieving the same lifting and translation movement of the printing component.

[0094] like Figure 3 As shown, in some embodiments, the printing mechanism 5 further includes an angle adjustment component 55, and the frame 51 is disposed on the angle adjustment component 55. The angle adjustment component 55 is used to adjust the placement angle of the printing component 54 in the horizontal plane.

[0095] For example, the angle adjustment assembly 55 includes a base frame 551, an arc-shaped guide rail 553, an arc-shaped slider 552, and a drive component. The arc-shaped guide rail 553 is horizontally mounted on the base frame 551 and has an arc shape. The arc-shaped slider 552 is mounted on the frame 51 and cooperates with the arc-shaped guide rail 553, allowing the frame 51 to rotate within a certain angle range relative to the base frame 551 in the horizontal plane for fine-tuning. The drive component is connected to both the base frame 551 and the frame 51, and is used to drive the frame 51 to rotate relative to the base frame 551. The drive component can be a rotary motor or a telescopic cylinder. The rotary motor is fixed to the base frame 551, with one end connected to the frame 51, driving the frame 51 to rotate relative to the base frame 551. One end of the telescopic cylinder is connected to the base frame 551, and the other end is connected to the frame 51. The horizontal extension and retraction of the telescopic cylinder pushes the frame 51 to rotate relative to the base frame 551.

[0096] The angle adjustment component 55 further increases the degree of freedom of adjustment of the printing component 54, further improves the flexibility of the printing posture of the printing component 54, and can further adapt to different placement positions of the sheet 8 on the carrier stage 2, thereby improving printing accuracy.

[0097] like Figure 3 and Figure 4 As shown, in some embodiments, the frame 51 includes two vertical frames 511 spaced apart along the transmission path direction. Each vertical frame 511 is provided with a vertical slide rail 512, and each vertical frame 511 is provided with a first lead screw 523 and a first motor 521. The lifting frame 522 includes a horizontal plate 5221 and a vertical plate 5222 connected together. The two ends of the horizontal plate 5221 are respectively moved and engaged with the vertical slide rails 512 on the two vertical frames 511 through sliders. The first lead screw nut 524 is provided at both ends of the horizontal plate 5221, and the vertical plate 5222 is located at... On the side of the two vertical frames 511 closest to the operator's position, the translation component 53 is located on the side of the vertical plate 5222 closest to the operator's position. That is, on the side of the vertical plate 5222 facing the operator's position, there is a horizontal slide rail 532, a second lead screw, and a second motor 533. The translation frame 531 of the translation component 53 moves and cooperates with the horizontal slide rail 532 through the slider on it. The translation frame 531 is provided with a second lead screw nut, which cooperates with the second lead screw. The printing component 54 is located on the side of the translation frame 531 facing the operator's position.

[0098] With the above technical solution, the frame structure of the printing mechanism 5 is simple. Since the vertical plate 5222 of the lifting frame 522 is located on the side of the frame 51 near the operator's position, the translation component 53 is directly set on the side of the vertical plate 5222 near the operator's position. The printing component 54 faces the operator directly. There are no other parts obstructing the printing component 54 and the operator, which makes it convenient for the operator to observe the printing situation while standing in the operating position.

[0099] like Figure 5 As shown, in some embodiments, the carrier platform 2 includes a support frame 22, a conveying component 21, and an adsorption component. The conveying component 21 is disposed on the support frame 22 and is used to convey the sheet 8 and adjust its position on the carrier platform 2. The adsorption component is disposed on the support frame 22 and is used to adsorb and fix the sheet 8. For example, the conveying component 21 can be a conveyor belt, a paper winding mechanism, etc. The adsorption component adsorbs and fixes the sheet 8 on the conveying component 21 through vacuum adsorption. During the conveying of the sheet 8 on the carrier platform 2 and during the printing process, the adsorption component maintains the adsorption state. When it is necessary to transfer the sheet 8 to the sheet output mechanism 7, the adsorption component releases the adsorption, and the sheet 8 is conveyed to the sheet output mechanism 7 by the conveying component 21.

[0100] When the above technical solution is adopted, the sheet 8 located on it is supported and conveyed by the conveying component 21, the placement position of the sheet 8 on the carrier platform 1 is adjusted, and after the placement position is correct, the sheet 8 is adsorbed and fixed on the carrier platform 2 by the adsorption component to prevent the sheet 8 from shifting during the transmission and printing process, thus ensuring printing accuracy.

[0101] like Figure 6 and Figure 7 As shown, in some embodiments, the printing equipment further includes multiple sheet rotation mechanisms 9, which are disposed above corresponding feeding units 31. The number of sheet rotation mechanisms 9 is equal to the number of feeding units 31 and they are arranged in a one-to-one correspondence. The sheet rotation mechanism 9 is used to horizontally rotate the sheet 8 located on the feeding unit 31. The sheet rotation mechanism 9 includes a fixing frame 91, a rotation drive component 92, and a vacuum suction cup 93. The fixing frame 91 may include a gantry frame, the crossbeam of which spans across the multiple feeding units 31. Multiple mounting seats are provided on the gantry frame, each mounting seat corresponding to a feeding unit 31. A rotation drive component 92 is mounted on each mounting seat. The rotation axis of the rotation drive component 92 is vertical. The rotary drive component 92 may include a rotary motor, and may also include a rotary motor and a reducer. The rotary drive end of the rotary drive component 92 passes through the mounting base. The vacuum suction cup 93 is detachably connected to the lower end of the rotary output end of the rotary drive component 92, specifically through a threaded connector or a snap-fit ​​connector. The vacuum suction cup 93 is located above the corresponding feeding unit 31. The rotary drive component 92 drives the vacuum suction cup 93 to rotate horizontally. The vacuum suction cup 93 is used to pick up the sheet 8. The vacuum suction cup 93 is connected to a vacuum source and can be a Bernoulli suction cup. The vacuum suction cup 93 can adsorb and fix the sheet 8 to the lower surface of the vacuum suction cup 93 at a height of 1mm to 8mm from the sheet. When the vacuum adsorption is released, the sheet 8 can fall. The size and model of the vacuum suction cup 93 are prepared according to the size of the sheet 8. Multiple sizes and models of vacuum suction cups 93 can be prepared, for example, a half-sheet suction cup for adsorbing half a battery cell, a full-sheet suction cup for adsorbing a whole battery cell, etc.

[0102] When the placement direction of sheet 8 on the feeding mechanism 3 is inconsistent with the aforementioned placement direction on the carrier platform 2, the above-mentioned technical solution allows the sheet 8 to be rotated by the sheet rotation mechanism 9. When sheet 8 is conveyed from the feeding unit 31 to below the sheet rotation mechanism 9, the vacuum chuck 93 picks up sheet 8 as needed, and the rotation drive component 92 drives the vacuum chuck 93 and sheet 8 to rotate horizontally. After adjusting the placement orientation of sheet 8 in the horizontal plane, sheet 8 detaches from the vacuum chuck 93 and falls back onto the feeding unit 31. This adjusts the placement orientation of sheet 8 on the carrier platform 2 and the printing mechanism 5, improving printing alignment accuracy. Furthermore, the vacuum chuck 93 is detachably connected to the rotation output end of the rotation drive component 92, facilitating the replacement of a suitable-sized vacuum chuck 93 according to the size of sheet 8, improving compatibility for the adsorption and printing of sheets of different sizes.

[0103] like Figure 1 and Figure 2 As shown, in some embodiments, the printing equipment further includes multiple first detection mechanisms 4. These first detection mechanisms 4 are positioned beside the transmission path, between the sheet feeding mechanism 3 and the printing mechanism 5. The first detection mechanisms 4 detect the state of the sheet 8 on the corresponding carrier platform 2, such as its placement position, and provide feedback to the corresponding printing mechanism 5 via wireless signals. With this configuration, before the carrier platform 2 moves to the printing mechanism 5, the placement position of the sheet 8 on the carrier platform 2 is detected by the first detection mechanisms 4. The printing mechanism 5 then adjusts the printing position of the printing component 54 based on the feedback placement position, thereby improving printing accuracy. The printing mechanism 5 and the first detection mechanisms 4 transmit information wirelessly, eliminating the need for cumbersome cable routing. This allows for application to transmission mechanisms 1 with a ring-shaped transmission path without affecting signal transmission. Compared to the original circular plug-in wiring, it allows for long-distance information transmission without being limited by the size of the ring.

[0104] The number of first inspection units 4 can be equal to the number of printing units 5, enabling simultaneous inspection of sheets 8 on multiple carrier tables 2, thus improving inspection efficiency. Alternatively, the number of first inspection units 4 can be less than the number of printing units 5, allowing for multi-stage inspection.

[0105] In some possible implementations, the first detection mechanism 4 is associated with the printing mechanism 5, and the first detection mechanism 4 can be used to detect the state of the sheet. The state of the sheet includes broken pieces or normal sheet. If the first detection mechanism 4 detects that the sheet is broken, the corresponding printing mechanism 5, based on the information sent by the detection mechanism, controls itself not to print, thus avoiding waste of printing paste.

[0106] In some embodiments, the printing equipment further includes a second inspection mechanism 6, which is disposed beside the transport path, between the printing mechanism 5 and the sheet output mechanism 7. The second inspection mechanism 6 is used to inspect the printing quality of the sheet 8 located on the corresponding carrier stage 2. This arrangement allows the second inspection mechanism 6 to inspect the printing quality of the sheet 8 after printing, such as the quality of the grid lines, whether it is broken or fragmented. If the printing quality is unqualified, it facilitates subsequent screening of the sheet 8. For example, if the printing quality is unqualified, the sheet 8 is recorded and removed manually or by other removal mechanisms during transport on the corresponding sheet output unit 71, preventing defective products from flowing to the next process.

[0107] The number of second inspection units 6 can be equal to the number of printing units 5, enabling simultaneous inspection of sheets 8 on multiple carrier tables 2, thus improving inspection efficiency. Alternatively, the number of second inspection units 6 can be less than the number of printing units 5, allowing for multi-stage inspection.

[0108] For example, the first detection agency 4 and the second detection agency 6 can be image acquisition agencies, such as cameras, which acquire images of the sheet and process the images, such as obtaining position information, printing quality, etc.

[0109] Based on the printing equipment described in any of the above embodiments, this utility model also provides a printing system, including a first printing device, a drying device, a sintering device, and a dispensing device; wherein the first printing device adopts the printing equipment described in any of the above embodiments. The drying device is used to dry the sheet printed by the printing device, the sintering device is used to sinter the sheet dried by the drying device, and the dispensing device is used to dispense adhesive onto the sintered sheet. Alternatively, the dispensing device can also be the above-described printing equipment; only the printing paste and screen need to be changed.

[0110] During operation, the first printing device prints the paste onto the sheet. Then, the sheet is placed in the drying device to dry the paste. Next, the sheet is placed in the sintering device to sinter the paste, so that the paste and the sheet are firmly bonded. Finally, the adhesive is applied to the sheet using the dispensing device to form a protective film layer.

[0111] Understandably, applying adhesive to the sheet is to prevent scratches when two battery cells are stacked.

[0112] In one possible embodiment, the printing system further includes a second printing device, which is different from the first printing device.

[0113] The printing system in this application embodiment may include multiple printing devices, which may include the printing devices described in the foregoing embodiments of this application, or printing devices different from those described in the foregoing embodiments. For example, the second printing device is a single-head printing device. The single-head printing device has higher printing precision, and in multiple printing processes within a printing system, the printing devices in this application embodiment or the single-head printing device can be selected according to the required printing precision.

[0114] In some embodiments, the second printing device and the first printing device are respectively connected to the drying device.

[0115] The printing system in this application embodiment may include multiple printing devices. Two or more of these printing devices (e.g., a first printing device and a second printing device) may be connected to a drying device. That is, multiple production lines can rapidly produce sheets, allowing two or more printing devices to simultaneously supply sheets to a single drying device, enabling the drying device to dry the sheets more quickly, or to dry more sheets within the same timeframe.

[0116] It is also understood that, in the embodiments of this application, the printing system can be set up with multiple printing processes, and a drying device can be set up after each printing process.

[0117] It is also understood that the second printing equipment can be the same as the first printing equipment, and this application does not limit this.

[0118] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0119] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A printing apparatus characterized by comprising: The printing device comprises: a conveying mechanism having a ring-shaped conveying path; a plurality of carrying tables arranged on the conveying mechanism, the carrying tables being capable of circulating along the conveying path, and the carrying tables being used for carrying the sheets; a sheet feeding mechanism comprising a plurality of sheet feeding units arranged side by side, each of the sheet feeding units being used for feeding one of the sheets onto a corresponding one of the carrying tables; a plurality of printing mechanisms arranged side by side, each of the printing mechanisms comprising a translation assembly and a printing assembly, the printing assembly being arranged on the translation assembly, and the translation assembly being used for adjusting the printing assembly to print the sheets in a direction parallel to the conveying path of the conveying mechanism at the printing mechanism; a sheet discharging mechanism used for discharging the sheets on the carrying tables.

2. The printing apparatus according to claim 1, characterized by The carrying tables are rectangular carrying tables, the length of the edges of the rectangular carrying tables along the conveying path is greater than the short side length of the whole battery sheet, the length of the edges of the rectangular carrying tables perpendicular to the conveying path is greater than the long side length of the whole battery sheet, the sheets are arranged on the rectangular carrying tables in a direction parallel to the direction of the conveying path in the direction of the grid lines to be printed, and the sheets are whole battery sheets or split battery sheets.

3. The printing apparatus according to claim 1, characterized by T-shaped grooves are arranged in the carrying tables and penetrate the carrying tables along the conveying path, and movers are arranged in the T-shaped grooves. The conveying mechanism comprises T-shaped guide rails, the T-shaped guide rails penetrate the T-shaped grooves, the T-shaped guide rails are arranged with stators opposite the movers, and the movers and the stators are used for forming magnetic levitation driving force to drive the carrying tables to move relative to the T-shaped guide rails.

4. The printing apparatus according to claim 3, characterized by The bottom of the carrying tables is further provided with sliding blocks, and the conveying mechanism further comprises sliding rails located on at least one side of the T-shaped guide rails, and the sliding blocks are guided and moved in cooperation with the sliding rails.

5. The printing apparatus according to claim 1, characterized by The printing device further comprises a plurality of sheet rotating mechanisms, and each of the sheet rotating mechanisms comprises: a fixing frame; a rotating driving part arranged on the fixing frame, the rotating axis of the rotating driving part being in a vertical direction; a vacuum chuck connected to the rotating output end of the rotating driving part, the vacuum chuck being located above the sheet feeding units, the rotating driving part being used for driving the vacuum chuck to rotate horizontally, and the vacuum chuck being used for sucking the sheets.

6. The printing apparatus of claim 1, wherein The sheet discharging mechanism comprises a plurality of sheet discharging units arranged side by side, each of the sheet discharging units being used for discharging one of the sheets on a corresponding one of the carrying tables.

7. The printing apparatus of claim 1, wherein Each of the printing mechanisms further comprises: a rack; a lifting assembly arranged on the rack and used for lifting movement, the translation assembly being arranged on one side of the lifting assembly close to a personnel operating position, and the printing assembly being arranged on one side of the translation assembly close to the personnel operating position.

8. The printing apparatus according to any one of claims 1 to 7, characterized by The printing device further comprises a plurality of first detection mechanisms arranged between the sheet feeding mechanism and the printing mechanism, each of the first detection mechanisms being used for detecting the state of the sheets on a corresponding one of the carrying tables and feeding back the state to a corresponding one of the printing mechanisms through a wireless signal. And / or, the printing device further comprises a second detection mechanism, which is arranged between the printing mechanism and the sheet discharging mechanism, and is configured to detect the printing quality of the sheet on the supporting table.

9. A printing system characterized by, The printing system comprises a first printing device, a drying device, a sintering device and a dispensing device; the first printing device is the printing device according to any one of claims 1-8, the drying device is configured to dry the sheet printed by the printing device, the sintering device is configured to sinter the sheet dried by the drying device, and the dispensing device is configured to dispense the sintered sheet.

10. The printing system of claim 9, wherein, The printing system further comprises a second printing device, which is different from the first printing device.

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