CN217863334U - Online ink jet printer - Google Patents

Abstract

The utility model discloses an online ink-jet printer, which comprises a base, wherein a printing platform and a printing and conveying mechanism are arranged on the base, the printing and conveying mechanism comprises a conveying frame, an ink-jet printing mechanism is arranged above the printing platform, a butt-joint feeding seat and a butt-joint discharging seat are arranged at two ends of the base, and the ink-jet printing mechanism is arranged between the butt-joint feeding seat and the butt-joint discharging seat; print platform is equipped with and holds the logical groove of stepping down of conveying frame, the logical groove of stepping down runs through print platform's relative both sides surface, the both ends of conveying frame are passed the logical groove of stepping down stretches out print platform's the outside, and the both ends of conveying frame extend respectively to dock the feeding seat and to connect the unloading seat. Lead to the groove through setting up the stepping down on print platform, lead to the inslot setting at the stepping down and print conveying mechanism, through set up butt joint feeding seat and butt joint ejection of compact seat on the frame, realize printing the online of product, need not the transfer and carry the product, reduce artifical intensity of labour, improve production efficiency.

Description

Online ink jet printer

Technical Field

The utility model relates to a printer technical field, concretely relates to online ink jet printer.

Background

The ink-jet printing technology starts in the 70 s of the 20 th century, the resolution of the current ink-jet printing can realize hundreds of DPI (deep package inspection) and even thousands of DPI (deep package inspection), the requirement of the production of electronic circuit boards can be completely met, and the leap from the graphic display technology to the functional graphic technology is realized, so that the current processing of the electronic circuit boards cannot be separated from an ink-jet printer.

The existing ink-jet printer is generally provided with conveying mechanisms on two sides of a printing platform and a manipulator on the side of the printing platform, so that materials to be printed are conveyed or output to the printing platform, and the existing ink-jet printer is complex in overall structure, large in size and high in manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the disappearance that prior art exists, provide an online ink jet printer, it can simplify the printer structure, reduces printer manufacturing cost, improves printer work efficiency.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an online ink-jet printer comprises a base, wherein a printing platform and a printing conveying mechanism are arranged on the base, the printing conveying mechanism comprises a conveying frame, an ink-jet printing mechanism is arranged above the printing platform, a butt joint feeding seat and a butt joint discharging seat are arranged at two ends of the base, and the ink-jet printing mechanism is arranged between the butt joint feeding seat and the butt joint discharging seat; print platform is equipped with and holds the logical groove of stepping down of conveying frame, the logical groove of stepping down runs through print platform's relative both sides surface, the both ends of conveying frame are passed the logical groove of stepping down stretches out print platform's the outside, and the both ends of conveying frame extend respectively to dock the feeding seat and to connect the unloading seat. The printing platform is provided with the abdicating through groove, and the printing conveying mechanism is arranged in the abdicating through groove, so that a product to be printed can be directly conveyed to the printing platform through the printing conveying mechanism, and the product is conveyed to the next procedure through the printing conveying mechanism after printing is finished, so that the complexity of the ink-jet printer is reduced, and the working efficiency of the printer is improved; through set up butt joint feed seat and butt joint ejection of compact seat on the frame to realize the quick butt joint of printer and upstream equipment and low reaches equipment, realize printing the online of product, need not the transfer and carry the product, reduce artifical intensity of labour, improve production efficiency.

Print conveying mechanism still including encircle the conveyer belt that the conveying frame set up and drive conveyer belt encircle the transport drive assembly of conveying frame activity, be equipped with the butt joint feed inlet on the butt joint feed seat, be equipped with the butt joint discharge gate on the butt joint discharge seat, the both ends of conveying frame extend to respectively butt joint feed inlet and butt joint discharge gate. As a preferred scheme, the conveying frame includes two relative parallel arrangement's conveying board, and two conveying boards pass through connecting plate fixed connection, conveying board length direction's both ends are equipped with the synchronizing wheel, the conveyer belt encircles the synchronizing wheel setting, and two adjacent synchronizing wheels pass through driven shaft transmission and connect, be equipped with on the driven shaft from the driving wheel, carry drive assembly to include conveying motor and by the hold-in range of conveying motor control activity, the one end of hold-in range is connected with conveying motor's action wheel, the other end of hold-in range with from driving wheel connection.

As a preferable scheme, the printing platform is provided with a conveying lifting mechanism, the conveying frame is connected with the driving end of the conveying lifting mechanism and can be controlled by the conveying lifting mechanism to move up and down, the conveying frame can descend to a position lower than the upper surface of the printing platform, and the conveying frame can ascend to a position exposed out of the opening of the yielding through groove. The conveying lifting mechanism is arranged, so that the conveying frame is controlled to move up and down, and when the product to be printed is conveyed to the printing platform, the conveying lifting mechanism controls the conveying frame to move down, so that the product to be printed falls on the printing platform; when printing is finished or products need to be conveyed, the conveying lifting mechanism controls the conveying frame to move upwards, so that the products are in contact with the conveying belt on the conveying frame, and the products are conveyed in or out through the conveying belt.

As a preferred scheme, the conveying lifting mechanism is a conveying lifting cylinder, and a movable rod of the conveying lifting cylinder extends upwards to be connected with the conveying frame. The utility model discloses in, carry elevating system to be equipped with two sets ofly, two sets of transport elevating system intervals set up.

As a preferred scheme, a material blocking positioning mechanism is arranged on the printing platform and comprises a stop rod and a material blocking cylinder for controlling the stop rod to move up and down.

As an optimal solution, print platform still is equipped with and keeps off material adjustment mechanism, keep off material adjustment mechanism including keep off the material adjust the slide rail, locate the fender material on keeping off the material adjust the slide rail adjust the slide and control keep off the material of adjusting the slide activity and adjust drive assembly, keep off the material and adjust the extending direction of slide rail and the extending direction of conveying frame and parallel, keep off the material cylinder and locate and keep off the material and adjust on the slide to can adjust the slide activity along with keeping off the material, print platform is last to be equipped with the horizontal guide slot that supplies the pin to upwards stretch out, and the extending direction of the horizontal guide slot of palm and the extending direction who keeps off the material and adjust the slide rail parallel.

As an optimal scheme, the material blocking positioning mechanism comprises two groups, the material blocking adjusting mechanism comprises two material blocking adjusting sliding seats which are arranged at intervals, the material blocking cylinders of the two material blocking positioning mechanisms are arranged on the corresponding material blocking adjusting sliding seats, and the movable rods of the material blocking cylinders extend upwards to be connected with the stop rods. Keep off material regulation drive assembly including keeping off the material and adjusting driving motor, adjust the fender material regulation movable belt that driving motor controlled the activity by keeping off the material, two keep off the material and adjust the slide respectively with keep off the material and adjust both sides fixed connection in movable belt to can adjust movable belt control by keeping off the material and keep away from relatively or be close to. It should be understood that the material blocking adjusting driving assembly can also adopt a mode of matching a motor and a screw rod.

As a preferred scheme, the material blocking and positioning mechanism is arranged between the two conveying plates.

As a preferred scheme, the two sides of the conveying frame on the printing platform are provided with edge pressing mechanisms, each edge pressing mechanism comprises a pressing plate and an edge pressing cylinder for controlling the pressing plate to move up and down, the pressing plate is fixedly arranged at the upper end of a movable rod of the edge pressing cylinder and protrudes to one side close to the conveying frame, and the length direction of the pressing plate is parallel to the extension direction of the conveying frame.

As a preferred scheme, still be equipped with blank pressing adjustment mechanism on the print platform, blank pressing adjustment mechanism includes that the blank pressing adjusts the slide rail, locates the blank pressing on the blank pressing adjusts the slide rail and control the blank pressing of blank pressing and adjust the slide activity and adjust drive assembly, the extending direction that the slide rail was adjusted to the blank pressing is mutually perpendicular with the extending direction of conveying frame, the blank pressing cylinder is located on the blank pressing adjusts the slide to can adjust the slide activity along with the blank pressing.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, specifically speaking, through setting up the logical groove of stepping down on print platform, set up the printing conveying mechanism in the logical groove of stepping down, thus can print the conveying mechanism and directly convey the product to be printed on the print platform, through printing the conveying mechanism and conveying the product to the next process after printing, reduce the complexity of the ink jet printer, has improved the work efficiency of the printer; through set up butt joint feed seat and butt joint ejection of compact seat on the frame to realize printer and upstream equipment and low reaches equipment and dock fast, the equipment of being convenient for is used, realizes the product and carries in the automation of upper and lower reaches, realizes the online printing of product, need not the transfer and carries the product, reduces artifical intensity of labour, improves production efficiency.

To more clearly illustrate the structural features, technical means, and specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments:

drawings

FIG. 1 is an assembly diagram of an embodiment of the present invention;

FIG. 2 is a block diagram of an ink jet printing mechanism according to an embodiment of the present invention;

FIG. 3 is a block diagram of a cleaning mechanism according to an embodiment of the present invention;

fig. 4 is a mounting structure view of the printing conveyance mechanism according to the embodiment of the present invention;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

fig. 6 is an internal structural view of a printing platform according to an embodiment of the present invention;

fig. 7 is an enlarged schematic view at B in fig. 6.

The attached drawings indicate the following:

10. base 11, Y-axis mechanism 12 and X-axis mechanism

13. Butt joint feed inlet 14, butt joint discharge gate 20, print platform

201. Transverse guide groove 202, longitudinal guide groove 21 and yielding through groove

22. Conveying lifting mechanism 23, material blocking positioning mechanism 231 and material blocking cylinder

232. Stop rod 233, stop adjusting slide 234 and stop adjusting slide rail

24. Blank pressing mechanism 241, blank pressing cylinder 242 and pressing plate

243. Sliding rail is adjusted to horizontal plate 244, montant 245, blank pressing

246. Blank holder adjusting slide 30, printing and conveying mechanism 31 and conveying plate

32. Conveyor belt 33, driven shaft 34, and conveying motor

35. Timing belt 40, ink jet printing mechanism 41, and head base

42. Nozzle 43, ink cartridge 44, CCD camera

45. UV lamp 46, sweep yard rifle 50, wiper mechanism

51. A cleaning seat 52, a cleaning cylinder 53 and a cleaning head.

Detailed Description

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1-7, an online inkjet printer, including frame 10, be equipped with print platform 20 and printing conveying mechanism 30 on the frame 10, print platform 20's top is equipped with inkjet printing mechanism 40, both ends on the frame 10 are equipped with butt joint feed seat and butt joint discharge seat, be equipped with butt joint feed inlet 13 on the butt joint feed seat, be equipped with butt joint discharge gate 14 on the butt joint discharge seat, print conveying mechanism 30 includes the conveying frame of horizontal extension, encircles the conveyer belt 32 that conveying frame set up and the conveying drive assembly that conveying frame activity is encircleed to conveyer belt 32 and drive conveyer belt 32, print platform 20 is equipped with the logical groove 21 of stepping down that corresponds with conveying frame, the logical groove 21 of stepping down extends along the activity direction of conveyer belt 32 to run through print platform 20's relative both sides surface and print platform 20's the upside surface of printing, conveying frame is located in the logical groove 21 of stepping down, conveying frame's both ends are passed logical groove 21 of stepping down and are extended out print platform 20's the outside, and the both ends of conveying frame extend to butt joint feed inlet 13 and butt joint discharge gate 14 respectively.

The inkjet printing mechanism 40 comprises a nozzle base 41, a nozzle 42 arranged at the lower end of the nozzle base 41, an ink box 43 arranged at the upper side of the nozzle base 41, a UV lamp 45 arranged at one side of the nozzle and a printing lifting driving assembly for driving the nozzle to move up and down, wherein the nozzle base 41 is also provided with a CCD camera 44 for photographing and positioning a product conveyed to the printing platform 20 and a code scanning gun 46 for scanning the product; the printing machine is characterized in that a Y-axis mechanism 11 is arranged on the machine base 10, an X-axis mechanism 12 and a Y-axis driving motor for controlling the X-axis mechanism 12 to move along the Y-axis direction are arranged on the Y-axis mechanism 11, and the printing lifting driving assembly is arranged on the X-axis mechanism 12 and can be controlled by the X-axis driving motor to move along the X-axis direction. In the embodiment, the X-axis driving motor and the Y-axis driving motor are both linear motors, and can be driven by a module or a mode of matching the motors with the screw rods in actual use; the printing lifting driving assembly comprises a motor and a screw rod.

In the present invention, one side of the docking inlet 13 is provided with a cleaning mechanism 50 for cleaning the nozzle 42 of the inkjet printing mechanism 40. The cleaning mechanism 50 comprises a cleaning seat 51 and a cleaning cylinder 52 for controlling the cleaning seat 51 to move up and down, and a cleaning head 53 is arranged on the cleaning seat 51. When the nozzle 42 needs to be cleaned, the Y-axis mechanism 11 and the X-axis mechanism 12 cooperate to move the inkjet printing mechanism 40 above the cleaning mechanism 50, the piston rod of the cleaning cylinder 52 extends out to make the cleaning head 53 on the cleaning seat 51 contact the nozzle 42, so that the liquid remaining on the nozzle 42 is adsorbed by the negative pressure in the cleaning head 53, and then the printing lifting driving assembly controls the nozzle 42 to move upwards, so as to clean the nozzle 42.

As shown in fig. 4-7, the conveying frame includes two conveying plates 31 of relative parallel arrangement, and two conveying plates 31 pass through connecting plate fixed connection, every conveying plate 31 length direction's both ends are equipped with the synchronizing wheel, conveyer belt 32 encircles the synchronizing wheel setting, and two adjacent synchronizing wheels pass through driven shaft 33 transmission and connect, be equipped with on the driven shaft 33 from the driving wheel, carry drive assembly including conveying motor 34 and by conveying motor 34 control activity hold-in range 35, the one end of hold-in range 35 is connected with conveying motor 34's action wheel, hold-in range 35's the other end with follow driving wheel and be connected.

The printing platform 20 is provided with a conveying lifting mechanism 22, and the conveying frame is connected with the driving end of the conveying lifting mechanism 22 and can move up and down under the control of the conveying lifting mechanism 22; the depth of the yielding through groove is larger than or equal to the thickness of the conveying frame and the conveyor belt, so that the conveying frame can descend to a position lower than the upper surface of the printing platform, and the conveying frame can ascend to a position exposed out of the opening of the yielding through groove.

The conveying lifting mechanism 22 is arranged to control the conveying frame to move up and down, and when the product to be printed is conveyed to the printing platform 20, the conveying lifting mechanism 22 controls the conveying frame to move down, so that the product to be printed falls on the printing platform 20; when printing is finished or products need to be conveyed, the conveying lifting mechanism 22 controls the conveying rack to move upwards, so that the products are in contact with the conveying belt 32 on the conveying rack, and the products are input or output through the conveying belt 32. The conveying lifting mechanism 22 is a conveying lifting cylinder, and a movable rod of the conveying lifting cylinder extends upwards to be connected with the conveying frame. The utility model discloses in, carry elevating system 22 to be equipped with two sets ofly, two sets of 22 intervals settings of carrying elevating system.

Be equipped with the fender material positioning mechanism 23 on print platform 20, the fender material positioning mechanism 23 is located between two conveying plates 31, the fender material positioning mechanism 23 includes the fender material cylinder 231 of pin 232 and the upper and lower activity of control pin 232. Print platform 20 still is equipped with and keeps off material adjustment mechanism, keep off material adjustment mechanism including keep off the material adjust slide rail 234, locate keep off the material on keeping off material adjust slide rail 234 and control keep off the material of adjusting the slide 233 and adjust the drive assembly, keep off the material and adjust the extending direction of slide 234 and the extending direction of conveying frame and parallel, keep off material cylinder 231 and locate and keep off the material and adjust on the slide 233 to can adjust the slide 233 along with keeping off the material and move, print platform 20 is last to be equipped with the horizontal guide slot 201 that supplies pin 232 to upwards stretch out, the extending direction of horizontal guide slot 201 parallels with the extending direction who keeps off material and adjust slide rail 234.

In this embodiment, the material blocking positioning mechanism 23 is two sets of, corresponding including being equipped with, the material blocking adjusting mechanism adjusts the slide 233 including the material blocking of two interval settings, and the material blocking cylinder 231 of two sets of material blocking positioning mechanisms 23 is located on the material blocking adjusting slide 233 that corresponds, two the movable rod of material blocking cylinder 231 upwards stretches out and is connected with the pin 232. Keep off material and adjust drive assembly and adjust driving motor, adjust the fender material regulation movable belt of driving motor control activity including keeping off the material, two keep off material and adjust slide 233 respectively with keep off material regulation movable belt's both sides fixed connection to can adjust movable belt control by keeping off the material and keep away from relatively or be close to. It should be understood that the material blocking adjusting driving assembly can also adopt a mode of matching a motor and a screw rod. By arranging the material blocking positioning mechanism 23, when the product is conveyed to the printing platform 20, the material blocking cylinder 231 controls the stop rod 232 to extend upwards, so that the product stops moving; through setting up the fender material adjustment mechanism to the position of adjustable fender material positioning mechanism 23, thereby realize fixing a position different products, improve the printer suitability.

The printing platform 20 is provided with edge pressing mechanisms 24 on two sides of the conveying frame, each edge pressing mechanism 24 comprises a pressing plate 242 and an edge pressing cylinder 241 for controlling the pressing plate 242 to move up and down, the pressing plate 242 is fixedly arranged at the upper end of a movable rod of the edge pressing cylinder 241, the pressing plate 242 protrudes towards one side close to the conveying frame, and the length direction of the pressing plate 242 is parallel to the extending direction of the conveying frame. When printing, the pressing plate 242 is controlled by the edge pressing cylinder 241 to press the side edge of the product downwards, so that the product is prevented from moving in the printing process, and the printing quality is improved. Still be equipped with blank pressing adjustment mechanism on print platform 20, blank pressing adjustment mechanism includes blank pressing adjustment slide rail 245, locates blank pressing adjustment slide 246 on blank pressing adjustment slide rail 245 and controls the blank pressing adjustment drive assembly that blank pressing adjustment slide 246 was movable, the extending direction of blank pressing adjustment slide rail 245 is mutually perpendicular with the extending direction of conveying frame, blank pressing cylinder 241 is located on blank pressing adjustment slide 246 to can adjust the slide 246 activity along with the blank pressing. The utility model discloses in, fixed diaphragm 243 that is equipped with in the movable rod upper end of blank pressing cylinder 241, be equipped with the montant 244 that upwards stretches out on the diaphragm 243, clamp plate 242 and montant 244's upper end fixed connection, be equipped with the vertical guide slot 202 that corresponds with montant 244 on the print platform 20. Through setting up blank pressing adjustment mechanism to and be equipped with the vertical guide slot 202 that corresponds with montant 244 on print platform 20, thereby can adjust the position of blank pressing mechanism 24 as required, the adaptation carries out the blank pressing to different products.

In conclusion, the yielding through groove is formed in the printing platform, and the printing conveying mechanism is arranged in the yielding through groove, so that a product to be printed can be directly conveyed to the printing platform through the printing conveying mechanism, and the product is conveyed to the next procedure through the printing conveying mechanism after printing is finished, so that the complexity of the ink-jet printer is reduced, and the working efficiency of the printer is improved; through set up butt joint feed seat and butt joint ejection of compact seat on the frame to realize printer and upstream equipment and low reaches equipment and dock fast, the equipment of being convenient for is used, realizes the product and carries in the automation of upstream and downstream, realizes the online printing of product, need not the transfer and carries the product, reduces artifical intensity of labour, improves production efficiency.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, so any modifications, equivalent replacements, improvements, etc. made to the above embodiments by the technology of the present invention are all within the scope of the technical solution of the present invention.

Claims (10)

1. An online ink-jet printer comprises a base, a printing platform and a printing and conveying mechanism are arranged on the base, the printing and conveying mechanism comprises a conveying frame, an ink-jet printing mechanism is arranged above the printing platform, and the online ink-jet printer is characterized in that,

the two ends of the machine base are provided with a butt joint feeding seat and a butt joint discharging seat, and the ink-jet printing mechanism is arranged between the butt joint feeding seat and the butt joint discharging seat;

print platform is equipped with and holds the logical groove of stepping down of conveying frame, the logical groove of stepping down runs through print platform's relative both sides surface, the both ends of conveying frame are passed the logical groove of stepping down stretches out print platform's the outside, and the both ends of conveying frame extend respectively to dock the feeding seat and to connect the unloading seat.

2. The on-line inkjet printer of claim 1 wherein the print delivery mechanism further comprises a conveyor belt disposed around the carriage and a delivery drive assembly for driving the conveyor belt to move around the carriage, the docking feed seat is provided with a docking feed port, and the docking discharge seat is provided with a docking discharge port;

and two ends of the conveying frame respectively extend to the butt joint feed port and the butt joint discharge port.

3. An online ink-jet printer as claimed in claim 2, wherein the printing platform is provided with a conveying lifting mechanism, the transmission frame is connected with the driving end of the conveying lifting mechanism and can be controlled by the conveying lifting mechanism to move up and down;

and the conveying frame can be descended to a position lower than the upper surface of the printing platform, and the conveying frame can be ascended to a position exposed out of the opening of the yielding through groove.

4. An online ink jet printer as claimed in claim 2 or 3 wherein the transport frame comprises two transport plates arranged in parallel, the two transport plates are fixedly connected through a connecting plate, synchronizing wheels are arranged at the two ends of the transport plates in the length direction, the transport belts are arranged around the synchronizing wheels, two adjacent synchronizing wheels are connected through a driven shaft in a transmission manner, a driven wheel is arranged on the driven shaft, the transport driving assembly comprises a transport motor and a synchronous belt controlled to move by the transport motor, one end of the synchronous belt is connected with a driving wheel of the transport motor, and the other end of the synchronous belt is connected with the driven wheel.

5. The online ink jet printer according to claim 4, wherein the printing platform is provided with a stop positioning mechanism, and the stop positioning mechanism comprises a stop rod and a stop cylinder for controlling the stop rod to move up and down.

6. The online ink jet printer according to claim 5, wherein the print platform further comprises a material blocking adjusting mechanism, the material blocking adjusting mechanism comprises a material blocking adjusting slide rail, a material blocking adjusting slide seat arranged on the material blocking adjusting slide rail and a material blocking adjusting drive assembly for controlling the material blocking adjusting slide seat to move, the extending direction of the material blocking adjusting slide rail is parallel to the extending direction of the conveying frame, the material blocking cylinder is arranged on the material blocking adjusting slide seat and can move along with the material blocking adjusting slide seat, the print platform is provided with a transverse guide groove for the blocking rod to extend upwards, and the extending direction of the transverse guide groove is parallel to the extending direction of the material blocking adjusting slide rail.

7. The online ink jet printer according to claim 6, wherein the material blocking positioning mechanisms comprise two sets, the material blocking adjusting mechanism comprises two material blocking adjusting sliding seats arranged at intervals, the material blocking cylinders of the two sets of material blocking positioning mechanisms are arranged on the corresponding material blocking adjusting sliding seats, and the movable rods of the two material blocking cylinders extend upwards to be connected with the stop rods.

8. An in-line ink jet printer as claimed in claim 7 wherein the striker positioning mechanism is located between two transfer plates.

9. The on-line inkjet printer according to claim 1 wherein the printing platform has edge pressing mechanisms disposed on both sides of the carriage, the edge pressing mechanisms include a pressing plate and an edge pressing cylinder for controlling the pressing plate to move up and down, the pressing plate is fixed on the upper end of the movable rod of the edge pressing cylinder, the pressing plate protrudes toward one side close to the carriage, and the length direction of the pressing plate is parallel to the extending direction of the carriage.

10. The on-line inkjet printer according to claim 9 wherein the printing platform further comprises a hold-down adjusting mechanism, the hold-down adjusting mechanism comprises a hold-down adjusting slide rail, a hold-down adjusting slide carriage disposed on the hold-down adjusting slide rail, and a hold-down adjusting driving assembly for controlling the movement of the hold-down adjusting slide carriage, the hold-down adjusting slide rail extends in a direction perpendicular to the direction of the transport frame, and the hold-down cylinder is disposed on the hold-down adjusting slide carriage and is movable with the hold-down adjusting slide carriage.

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