Mesh belt double-jet printing device

Abstract

The utility model discloses a mesh belt double-jet printing device which comprises a first jet printing machine and a second jet printing machine which are arranged on a machine frame, the machine frame is provided with a buffering device, the buffering device comprises a horizontally-distributed material pressing rod and two vertically-distributed sliding grooves, the two ends of the material pressing rod are connected with the two sliding grooves in a sliding mode respectively, and the two ends of the material pressing rod are connected with the first jet printing machine and the second jet printing machine respectively. And the material pressing rod is used for downwards pressing the printing material conveyed from the first jet printing machine to the second jet printing machine. According to the utility model, the material pressing rod arranged in the sliding chute is used as a buffer device of the two jet printing machines, and the material pressing rod can automatically tension printing materials and play a role in linking the two jet printing machines under the action of gravity by utilizing the self weight of the material pressing rod, so that the synchronism of the two jet printing machines is greatly improved, and the printing and jet printing efficiency is improved; in addition, through different material winding modes, various printing schemes such as front and back face double-spraying, double-machine front face overlapping printing and double-machine independent printing can be compatible. The printing device is simple in structure, high in printing speed, accurate in alignment, time-saving, material-saving and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of spray printing equipment, in particular to a mesh belt double-spray printing device. Background Art

[0002] Most of the existing printing equipment cannot achieve double-sided printing. In order to achieve double-sided printing of printed materials, the general practice is to use a single-sided printing device to print one side of the printed material first, and then use a single-sided printing device to print the other side after completion. The disadvantage of this printing method is that due to the separate printing, the alignment is difficult, resulting in a low yield.

[0003] At present, there are some existing technologies that integrate two printing devices into one device in order to reduce the occupied space, so as to achieve double-sided printing in a smaller occupied space environment. However, since the two printing devices work independently and lack linkage, the printing alignment accuracy and printing efficiency are easily affected by the difference in printing speed between the front and rear printing devices. Utility Model Content

[0004] The purpose of the utility model is to provide a mesh belt double-jet printing device, which can link the two inkjet printers by assembling two independent inkjet printers on a frame using side panels on both sides, and arranging a pressing rod installed in a slide groove as a buffer device for the two inkjet printers, thereby greatly improving the synchronization of the two inkjet printers, improving the printing efficiency, and effectively solving the problem of poor synchronization between the two inkjet printers in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mesh belt dual-jet printing device includes a first jet printer and a second jet printer arranged on a frame, the frame is provided with a buffer device, the buffer device includes a horizontally distributed pressing rod and two vertically distributed slide grooves, the two ends of the pressing rod are respectively slidably connected to the two slide grooves, and the pressing rod is used to press downward the printing material transmitted from the first jet printer to the second jet printer.

[0007] Furthermore, an upper stroke switch is provided at the upper end of any one of the slides, and the upper stroke switch is connected to the second inkjet printer; a lower stroke switch is provided at the lower end of any one of the slides, and the lower stroke switch is connected to the first inkjet printer. In this way, when the pressing rod falls to the bottom of the slide, the pressing rod will abut against and press the lower stroke switch, so that the first inkjet printer automatically pauses printing, and the second inkjet printer will lift the pressing rod upwards when printing and feeding, and as the pressing rod moves up and leaves the lower stroke switch, the first inkjet printer automatically starts to continue working; when the pressing rod rises to the top of the slide, the pressing rod will abut against and press the upper stroke switch, so that the second inkjet printer automatically pauses printing, and as the first inkjet printer prints and discharges materials, the pressing rod will gradually move down and leave the upper stroke switch under the action of gravity, and the second inkjet printer resumes normal printing, thereby achieving better dual-machine linkage printing and solving the problem of poor synchronization of the two inkjet printers.

[0008] Furthermore, buffer connection mechanisms are respectively provided at both ends of the press rod, and the buffer connection mechanisms include a gear shaft, a gear, a positioning bearing and a rolling bearing, one end of the gear shaft is rotationally connected to the end of the press rod through the positioning bearing, and the other end of the gear shaft is rotationally connected to the rolling bearing, the outer peripheral wall of the rolling bearing abuts against the groove wall of the chute, the gear is fixedly connected to the gear shaft, and the chute is connected with a rack along the length direction, and the rack is meshed with the gear. The meshing transmission of the gear and the rack can make the press rod more stable during the up and down movement, so as to better play the role of buffering and tensioning the printing material; in addition, by providing the positioning bearing and the rolling bearing, the friction resistance encountered by the press rod when it moves up and down along the chute can be reduced.

[0009] Furthermore, the first inkjet printer and the second inkjet printer both include a tape guide roller mechanism, a printing assembly located above the tape guide roller mechanism, and a feeding roller and a receiving roller located at both ends of the tape guide roller mechanism. The feeding roller is used to place rolled printing materials, the receiving roller is used to place printed printing materials, and the tape guide roller mechanism is used to transport and move the printing materials.

[0010] Furthermore, the belt guide roller mechanism includes a driving roller, a driven roller, and a transmission mesh belt connected between the driving roller and the driven roller.

[0011] Furthermore, the first inkjet printer has a first material guide rod and a second material guide rod at both ends of the tape guide roller mechanism, and the second inkjet printer has a third material guide rod and a fourth material guide rod at both ends of the tape guide roller mechanism, so as to better guide and transmit the printing material.

[0012] Furthermore, the unwinding roller and the receiving roller are pneumatic shafts. As an example, the printing material is a rolled material tape roll. The pneumatic shaft structure is used as the unwinding roller and the receiving roller, which is convenient for placing the rolled printing material and winding and storing the printed printing material. Specifically, the positions of the unwinding roller and the receiving roller can also be swapped according to the actual printing process requirements.

[0013] Furthermore, an AI scanning device connected to the second inkjet printer is provided between the first inkjet printer and the second inkjet printer, and the AI ​​scanning device is located above the printing material or below the printing material. By setting the AI ​​scanning device, the identification points on one side of the printing material can be identified, and the scanned identification point information can be fed back to the printing software through the AI ​​main control board, and the coordinate information of the printing screen on the other side is automatically generated through information calculation, thereby realizing automatic positioning of double-sided printing. The AI ​​scanning device can have two installation positions according to different printing schemes; specifically, the first installation position is that the AI ​​scanning device is located above the printing material, which can be fixed below the track beam of the second inkjet printer, so as to identify the front information of the printing material and realize overlapping printing on the front side. This printing scheme is mainly used in special processes such as post-stamping process, varnish process, layer process, etc., and is suitable for all processing processes that require secondary positioning and overprinting; the second installation position is that the AI ​​scanning device is located below the printing material, which can be fixed between the guide rod and the driven roller of the second inkjet printer, and is used to identify the back information of the printing material and realize double-sided spraying on the front and back sides.

[0014] Further, the first inkjet printer and the second inkjet printer are distributed left and right, and the buffer device is located between the first inkjet printer and the second inkjet printer; or, the first inkjet printer and the second inkjet printer are distributed up and down, and the buffer device is located below the same side of the first inkjet printer and the second inkjet printer.

[0015] Further, the first inkjet printer and the second inkjet printer are arranged obliquely, or the first inkjet printer and the second inkjet printer are arranged horizontally.

[0016] Compared with the prior art, the utility model provides a mesh belt double-jet printing device, which has the following beneficial effects:

[0017] The utility model assembles two independent inkjet printers on a frame using side panels on both sides, and provides a material pressing rod installed in a slide groove as a buffer device for the two inkjet printers. The material pressing rod can automatically tension the printing material and play a role of linking the two inkjet printers under the action of gravity by utilizing its own weight, thereby greatly improving the synchronization of the two inkjet printers and improving the printing efficiency. In addition, through different winding methods, various printing solutions such as front and back double-spraying, double-machine front overlapping printing, and double-machine independent printing can be compatible.

[0018] The utility model has the advantages of simple structure, fast printing speed, precise alignment, time and material saving and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 Schematic diagram of the material winding in the front and back double spraying process of Example 1;

[0021] Figure 2 is a schematic diagram of the structure of the buffer device;

[0022] Figure 3 It is a schematic diagram of the connection between the press rod and the slide;

[0023] Figure 4 It is a schematic diagram of winding in the front overprinting process of Example 1;

[0024] Figure 5 Schematic diagram of winding in the dual-machine single-spray process of Example 1;

[0025] Figure 6 Schematic diagram of the material winding in the front and back double spraying process of Example 2;

[0026] Figure 7 Schematic diagram of the winding process of Example 2 in the dual-machine single-spray process.

[0027] Figure numerals: 1. first inkjet printer; 11. belt guide roller mechanism; 111. active roller; 112. driven roller; 113. transmission mesh belt; 12. printing and printing assembly; 121. track beam; 122. print head; 13. unwinding roller; 14. receiving roller; 2. second inkjet printer; 3. buffer device; 31. pressing rod; 311. gear shaft; 312. gear; 313. positioning bearing; 314. rolling bearing; 32. slide groove; 33. upper travel switch; 34. lower travel switch; 35. rack; 4. printing material; 5. first guide rod; 6. second guide rod; 7. third guide rod; 8. fourth guide rod; 9. AI scanning device. DETAILED DESCRIPTION

[0028] The technical solution of the utility model will be clearly and completely described below through detailed embodiments and in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] Example 1

[0030] Please refer to Figure 1 to Figure 5 The present embodiment provides a mesh belt dual-jet printing device, comprising a first jet printer 1 and a second jet printer 2 arranged on a frame. The frame is provided with a buffer device 3, and the buffer device 3 comprises a horizontally distributed pressing rod 31 and two vertically distributed slide grooves 32. The two ends of the pressing rod 31 are respectively slidably connected with the two slide grooves 32, and the pressing rod 31 is used to press down the printing material 4 transmitted from the first jet printer 1 to the second jet printer 2. When the second jet printer is feeding, the printing material can be pulled, thereby lifting the pressing rod upward; and when the first jet printer is feeding, the pressing rod will press downward by its own weight, so that the printing material is always in a state of self-weight balance of the pressing rod, and the length of the slide groove corresponds to the active stroke of the pressing rod and the buffer range of the printing material. By assembling two independent inkjet printers on a frame using side panels on both sides, and providing a material pressing rod installed in a slide slot as a buffer device for the two inkjet printers, the material pressing rod can automatically tension the printing material and play the role of linking the two inkjet printers under the action of gravity, thereby greatly improving the synchronization of the two inkjet printers and improving the printing efficiency.

[0031] refer to Figure 2 In some specific embodiments, an upper stroke switch 33 is provided at the upper end of any one of the chutes 32, and the upper stroke switch 33 is connected to the second inkjet printer 2; a lower stroke switch 34 is provided at the lower end of any one of the chutes 32, and the lower stroke switch 34 is connected to the first inkjet printer 1. In this way, when the pressing rod falls to the bottom of the chute, the pressing rod will abut against and press the lower stroke switch, so that the first inkjet printer automatically pauses printing, and the second inkjet printer prints and feeds, which will lift the pressing rod upwards. As the pressing rod moves upwards and leaves the lower stroke switch, the first inkjet printer automatically starts to continue working; when the pressing rod rises to the top of the chute, the pressing rod will abut against and press the upper stroke switch, so that the second inkjet printer automatically pauses printing, and as the first inkjet printer prints and discharges materials, the pressing rod will gradually move downwards and leave the upper stroke switch under the action of gravity, and the second inkjet printer resumes normal printing, thereby achieving better dual-machine linkage printing and solving the problem of poor synchronization of the two inkjet printers.

[0032] More specifically, Figure 2 and Figure 3As shown, buffer connection mechanisms are respectively provided at both ends of the press rod 31, and the buffer connection mechanisms include a gear shaft 311, a gear 312, a positioning bearing 313 and a rolling bearing 314. One end of the gear shaft 311 is rotationally connected to the end of the press rod 31 through the positioning bearing 313, and the other end of the gear shaft 311 is rotationally connected to the rolling bearing 314. The outer peripheral wall of the rolling bearing 314 abuts against the groove wall of the chute 32. The gear 312 is fixedly connected to the gear shaft 311. The chute 32 is connected with a rack 35 along the length direction, and the rack 35 is meshed with the gear 312. The meshing transmission of the gear and the rack can make the press rod more stable in the process of moving up and down, so as to better play the role of buffering and tensioning the printing material; in addition, by providing the positioning bearing and the rolling bearing, the friction resistance encountered by the press rod when moving up and down along the chute can be reduced.

[0033] In some specific embodiments, reference Figure 1 , Figure 4 and Figure 5 , the first inkjet printer 1 and the second inkjet printer 2 both include a belt guide roller mechanism 11, a printing and spraying assembly 12 located above the belt guide roller mechanism 11, and a feed roller 13 and a receiving roller 14 located at both ends of the belt guide roller mechanism 11. The feed roller is used to place the rolled printing material, the receiving roller is used to place the printed printing material, and the belt guide roller mechanism is used to transport and move the printing material. Among them, the belt guide roller mechanism 11 includes an active roller 111, a driven roller 112, and a transmission mesh belt 113 connected between the active roller 111 and the driven roller 112. The active roller and the driven roller rotate synchronously in the same direction, and the transmission mesh belt is provided with an adsorption device for adsorbing the printing material on the side close to the printing and spraying assembly. The printing and spraying assembly 12 includes a track beam 121 distributed laterally along the printing material 4 and a printing head 122 slidably connected to the track beam 121, and a driving component for driving the printing head to slide along the track beam is installed on the track beam. The printing and spraying assembly is a prior art, and the printing head can use the printing carriage as a driving component to drive the printing head to move back and forth along the track beam.

[0034] As an improved implementation, refer to Figure 1 , Figure 4 and Figure 5 The first inkjet printer 1 has a first material guide rod 5 and a second material guide rod 6 at both ends of the tape guide roller mechanism 11, and the second inkjet printer 2 has a third material guide rod 7 and a fourth material guide rod 8 at both ends of the tape guide roller mechanism 11, so as to better guide and transmit the printing material.

[0035] As a preferred embodiment, the unwinding roller 13 and the receiving roller 14 are pneumatic shafts. As an example, the printing material is a rolled material tape roll. The pneumatic shaft structure is used as the unwinding roller and the receiving roller, which is convenient for placing the rolled printing material and winding and storing the printed printing material. Specifically, the positions of the unwinding roller and the receiving roller can also be interchanged according to the actual printing process requirements.

[0036] In some specific embodiments, reference Figure 1 , Figure 4 and Figure 5 , an AI scanning device 9 connected to the second inkjet printer is provided between the first inkjet printer 1 and the second inkjet printer 2, and the AI ​​scanning device 9 is located above the printing material 4 or the AI ​​scanning device 9 is located below the printing material 4. By setting up the AI ​​scanning device, the identification points on one side of the printing material can be identified, and the scanned identification point information is fed back to the printing software through the AI ​​main control board, and the coordinate information of the printing screen on the other side is automatically generated through information calculation, thereby realizing automatic positioning of double-sided printing.

[0037] More specifically, the AI ​​scanning device 9 is a visual recognition module. As an example, the AI ​​scanning device can be a camera using a CIS contact image sensor, which is a relatively mature functional module structure in the prior art.

[0038] The AI ​​scanning device can have two installation positions according to different printing schemes. Figure 4 The first installation position is that the AI ​​scanning device is located above the printing material, which can be fixed under the track beam of the second inkjet printer, so as to identify the front information of the printing material and realize the front overlapping printing. This printing solution is mainly used in the post-stamping process, varnish process, layer process and other special processes, and is suitable for all processing processes that require secondary positioning and overprinting; in addition, refer to Figure 1 and Figure 6 The second installation position is that the AI ​​scanning device is located below the printing material. It can be fixed between the guide rod and the driven roller of the second inkjet printer to identify the back information of the printing material and realize double-sided printing on the front and back sides.

[0039] In this embodiment, reference Figure 1 , Figure 4 and Figure 5 , the first inkjet printer 1 and the second inkjet printer 2 are distributed left and right and are tilted, and the buffer device 3 is located between the first inkjet printer 1 and the second inkjet printer 2. More specifically, as an example, the first inkjet printer 1 and the second inkjet printer 2 are both symmetrical and tilted at 45 degrees.

[0040] This embodiment can be compatible with various printing solutions such as front and back double-jet printing, dual-machine front overlapping printing, and dual-machine independent printing through different winding methods.

[0041] like Figure 1 As shown, the winding situation of the front and back double-jet printing of two machines using the structure of this embodiment is demonstrated. The printing material 4 is wound and placed on the unwinding roller 13 located above the first inkjet printer 1, and the printing material 4 is unfolded and its free end is passed through the first guide rod 5, the transmission mesh belt 113 and the inkjet head 122 located on the first inkjet printer 1, the pressing rod 31, the third guide rod 7, the AI ​​scanning device 9, the transmission mesh belt 113 and the inkjet head 122 located on the second inkjet printer 2 in sequence, and finally wound on the receiving roller 14 located below the second inkjet printer 2. The inkjet head on the first inkjet printer completes the printing of the A side of the printing material, and the AI ​​scanning device is responsible for feeding back the information read on the A side to the second inkjet printer to achieve double-jet registration printing on the B side.

[0042] like Figure 4 As shown, the winding situation of the front-side overprinting of two machines using the structure of this embodiment is demonstrated. The printing material 4 is wound and placed on the unwinding roller 13 located below the first inkjet printer 1, and the printing material 4 is unfolded and its free end is sequentially passed through the transmission mesh belt 113 and the inkjet head 122 located in the first inkjet printer 1, the first material guide rod 5, the material pressure rod 31, the third material guide rod 7, the AI ​​scanning device 9, the transmission mesh belt 113 and the inkjet head 122 located in the second inkjet printer 2, and finally wound on the receiving roller 14 located below the second inkjet printer 2. The inkjet head on the first inkjet printer completes the initial printing on the A side of the printing material, and the AI ​​scanning device is responsible for feeding back the information read on the A side to the second inkjet printer to realize the overprinting printing on the A side.

[0043] like Figure 5 As shown, the winding situation of dual-machine single-jet using the structure of this embodiment is demonstrated. A printing material 4 is wound and placed on the feeding roller 13 located above the first jet printer 1, the printing material 4 is unrolled and its free end is passed through the transmission mesh belt 113 and the printing head 122 located in the first jet printer 1 in sequence, and finally wound on the receiving roller 14 located below the first jet printer 1; at the same time, another printing material 4 is taken and wound on the feeding roller 13 located above the second jet printer 2, the printing material 4 is unrolled and its free end is passed through the transmission mesh belt 113 and the printing head 122 located in the second jet printer 2 in sequence, and finally wound on the receiving roller 14 located below the second jet printer 2. The first jet printer and the second jet printer are used to realize dual-machine independent printing.

[0044] Example 2

[0045] refer to Figure 6 and Figure 7, this embodiment provides a mesh belt dual-jet printing device with a structure. The difference from embodiment 1 is that the first jet printer 1 and the second jet printer 2 of this embodiment are distributed up and down, and the buffer device 3 is located below the same side of the first jet printer 1 and the second jet printer 2. More specifically, as an example, the first jet printer 1 and the second jet printer 2 are distributed in two layers up and down and are both horizontally distributed.

[0046] This embodiment can realize dual-machine front and back dual-jet printing and dual-machine independent printing through different winding methods.

[0047] like Figure 6 As shown, the winding situation of the front and back double-jet printing of two machines using the structure of this embodiment is demonstrated. The printing material 4 is wound and placed on the unwinding roller 13 located at the upper right of the first inkjet printer 1, and the printing material 4 is unfolded and its free end is sequentially passed through the first guide rod 5, the transmission mesh belt 113 and the printing head 122 located at the first inkjet printer 1, the second guide rod 6, the pressing rod 31, the third guide rod 7, the AI ​​scanning device 9, the transmission mesh belt 113 and the printing head 122 located at the second inkjet printer 2, and the fourth guide rod 8, and finally wound on the receiving roller 14 located at the lower right of the second inkjet printer 2. The printing head on the first inkjet printer is used to complete the printing of the A side of the printing material, and the AI ​​scanning device is responsible for feeding back the information read on the A side to the second inkjet printer to realize the double-jet registration printing on the B side.

[0048] like Figure 7 As shown, the winding situation of dual-machine single-jet using the structure of this embodiment is demonstrated. A printing material 4 is wound and placed on the feeding roller 13 located at the upper right of the first inkjet printer 1, the printing material 4 is unrolled and its free end is sequentially passed through the first guide rod 5, the transmission mesh belt 113 and the printing head 122 located at the first inkjet printer 1, and the second guide rod 6, and finally wound on the receiving roller 14 located at the lower left of the first inkjet printer 1; at the same time, another printing material 4 is taken and wound on the feeding roller 13 located at the lower left of the second inkjet printer 2, the printing material 4 is unrolled and its free end is sequentially passed through the third guide rod 7, the transmission mesh belt 113 and the printing head 122 located at the second inkjet printer 2, and the fourth guide rod 8, and finally wound on the receiving roller 14 located at the lower right of the second inkjet printer 2. The first inkjet printer and the second inkjet printer are used to realize dual-machine independent printing.

[0049] The above embodiments are merely illustrative of the concept and technical solution of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by a person with ordinary knowledge in the relevant technical field without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A web belt dual-jet printing device, comprising a first jet printer and a second jet printer arranged on a frame, characterized in that: The frame is provided with a buffer device, which includes a horizontally distributed pressing rod and two vertically distributed sliding grooves. The two ends of the pressing rod are respectively slidably connected to the two sliding grooves. The pressing rod is used to press downward the printing material transmitted from the first inkjet printer to the second inkjet printer.

2. The mesh belt double-jet printing device according to claim 1 is characterized in that: An upper travel switch is provided at the upper end of any one of the slides, and the upper travel switch is connected to the second inkjet printer; a lower travel switch is provided at the lower end of any one of the slides, and the lower travel switch is connected to the first inkjet printer.

3. The mesh belt double-jet printing device according to claim 2 is characterized in that: A buffer connection mechanism is respectively provided at both ends of the press rod, and the buffer connection mechanism includes a gear shaft, a gear, a locating bearing and a rolling bearing. One end of the gear shaft is rotatably connected to the end of the press rod through the locating bearing, and the other end of the gear shaft is rotatably connected to the rolling bearing. The outer peripheral wall of the rolling bearing abuts against the groove wall of the slide groove, the gear is fixedly connected to the gear shaft, and the slide groove is connected with a rack along the length direction, and the rack is meshed with the gear.

4. The mesh belt double-jet printing device according to claim 1, characterized in that: The first inkjet printer and the second inkjet printer both include a tape guide roller mechanism, a printing assembly located above the tape guide roller mechanism, and a feeding roller and a receiving roller located at two ends of the tape guide roller mechanism, respectively.

5. The mesh belt double-jet printing device according to claim 4 is characterized in that: The belt guide roller mechanism comprises a driving roller, a driven roller and a transmission mesh belt connected between the driving roller and the driven roller.

6. The mesh belt double-jet printing device according to claim 5, characterized in that: The first inkjet printer has a first material guide rod and a second material guide rod at both ends of the tape guide roller mechanism, and the second inkjet printer has a third material guide rod and a fourth material guide rod at both ends of the tape guide roller mechanism.

7. The mesh belt double-jet printing device according to claim 4, characterized in that: The unwinding roller and the receiving roller are inflatable shafts.

8. The mesh belt double-jet printing device according to claim 1, characterized in that: An AI scanning device connected to the second inkjet printer is disposed between the first inkjet printer and the second inkjet printer. The AI ​​scanning device is located above the printing material or below the printing material.

9. The mesh belt double-jet printing device according to any one of claims 1 to 8, characterized in that: The first inkjet printer and the second inkjet printer are distributed left and right, and the buffer device is located between the first inkjet printer and the second inkjet printer; or, the first inkjet printer and the second inkjet printer are distributed up and down, and the buffer device is located below the same side of the first inkjet printer and the second inkjet printer.

10. The mesh belt double-jet printing device according to claim 9, characterized in that: The first inkjet printer and the second inkjet printer are arranged obliquely, or the first inkjet printer and the second inkjet printer are arranged horizontally.

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