CN113650427A

CN113650427A - Full-automatic double-sided multi-color printing equipment

Info

Publication number: CN113650427A
Application number: CN202110986365.6A
Authority: CN
Inventors: 周晓丽
Original assignee: Hangzhou Saiyang Futuo Image Technology Co ltd
Current assignee: Hangzhou Saiyang Digital Technology Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2021-11-16

Abstract

The invention discloses a full-automatic double-sided multicolor printing device, which comprises a conveying mechanism, a printing mechanism, a temporary storage mechanism and a cutting mechanism, wherein the printing mechanism comprises a printing support, a first printer and a second printer are arranged on the printing support, a conversion roller is arranged between the first printer and the second printer, a first dryer and a second dryer are arranged on the printing support, the first printer and the second printer respectively comprise a plurality of nozzles, a plurality of ink supply boxes and a plurality of ink return pipes, the ink supply boxes are provided with ink supply pipes, the ink supply pipes are provided with ink supply cavities, the ink supply pipes are provided with a plurality of first adjusting blocks, the first adjusting blocks are provided with first electromagnetic adjusting valves, the first adjusting blocks are connected with the nozzles through hoses, pressure sensors are arranged in the first adjusting blocks, the ink return pipes are provided with second adjusting blocks, the second adjusting blocks are provided with second electromagnetic adjusting valves, the second adjusting block is connected with the nozzle through a hose, and the ink return pipe is connected with the ink storage tank, so that continuous multicolor high-quality double-sided printing is realized.

Description

Full-automatic double-sided multi-color printing equipment

Technical Field

The invention belongs to the field of ink-jet printers, and particularly relates to a full-automatic double-sided multicolor printing device.

Background

The ink jet printing technology is to become the superfine particle and spray on beating printing paper with liquid printing ink through the shower nozzle, and the printer among the prior art is mostly the printer of single equipment, and the equipment can only carry out the ink jet printing promptly, can't carry out effective quick extensive continuous printing, and to the printing demand that needs carry out two-sided printing, general printer can not carry out continuous printing, can only accomplish earlier in the single face prints back and then sends into the printer with beating the printing paper reverse side, and two-sided printing is inefficient.

And current polychrome printer is in order to improve printing efficiency, and the shower nozzle of every colour all is provided with a plurality ofly, and sets up in the inside of printer and has different colours ink and the great holding vessel of volume, and the holding vessel passes through the less confession ink horn of pipe connection printer internal volume, supplies the ink horn to pass through a plurality of hose connection shower nozzles again, and when supplying ink, the delivery pump in the holding vessel carries the ink to supplying the ink horn, and rethread hose is carried to the shower nozzle.

When the transfer pump is used for transferring ink, the distances between the same ink supply box and the plurality of spray heads are different, so that the ink supply box can cause the printing quality to be reduced after certain pressure difference is generated between the spray heads during ink supply and printing for a long time, and the continuous printing effect of the printer is influenced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a full-automatic double-sided multi-color printing device, which can realize continuous multi-color double-sided printing and improve the printing quality.

In order to achieve the purpose, the invention provides the following technical scheme: a fully automated dual-sided multi-color printing apparatus, comprising: the conveying mechanism is used for continuously conveying the package printing paper to the printing mechanism; the printing mechanism comprises a printing support, a first printer and a second printer are arranged on the printing support, a conversion roller is arranged between the first printer and the second printer, a first dryer and a second dryer are arranged on the printing support, the first printer and the second printer respectively comprise a plurality of nozzles, a plurality of ink supply boxes and a plurality of ink return pipes, the ink supply boxes are provided with ink supply pipes, ink supply cavities are arranged in the ink supply pipes, the ink supply pipes are provided with a plurality of first adjusting blocks, the first adjusting blocks are provided with first electromagnetic adjusting valves, the first adjusting blocks are connected with the nozzles through hoses, pressure sensors are arranged inside the first adjusting blocks, the ink return pipes are provided with second adjusting blocks, the second adjusting blocks are provided with second electromagnetic adjusting valves, and the second adjusting blocks are connected with the nozzles through hoses, the ink return pipe is connected with the ink storage tank; the temporary storage mechanism is positioned between the printing mechanism and the cutting mechanism and is used for temporarily storing the printed paper; and the cutting mechanism is used for cutting the printing paper after printing.

Further, the first dryer and the second dryer both comprise drying ovens, a plurality of conveying rollers and a plurality of heating rods are arranged in the drying ovens, and air blowers are arranged on the drying ovens.

Further, the cutting mechanism comprises a cutting support, a longitudinal cutting area, a transverse cutting area and a collecting area are arranged on the cutting support, a longitudinal cutting knife block is arranged in the longitudinal cutting area, a longitudinal cutting knife is arranged on the longitudinal cutting knife block, a first knife roller and a second knife roller which are distributed vertically are arranged in the transverse cutting area, the transverse cutting knife which correspond to each other is arranged on the first knife roller and the second knife roller respectively, and a first conveying belt and a second conveying belt are arranged in the collecting area.

Furthermore, a pressing plate is arranged above the first conveying belt, a plurality of pressing wheels are arranged on the pressing plate, a third conveying belt is arranged above the second conveying belt, and the second conveying belt is connected with a lifting mechanism.

Further, the temporary storage mechanism comprises a temporary storage box, a fixed support and a movable support capable of vertically sliding are arranged in the temporary storage box, a plurality of first fixed rollers are arranged on the fixed support in a rotating mode, a plurality of second fixed rollers are arranged on the movable support in a rotating mode, and the first fixed rollers and the second rollers are arranged in a staggered mode.

Furthermore, all be provided with the carriage on first printer and the second printer, the center of carriage is for printing the district, is provided with the support step around printing the district, be provided with the shower nozzle bottom plate on the support step, the shower nozzle installation with on the shower nozzle bottom plate, be provided with the clearance between the side of shower nozzle bottom plate and the carriage, the carriage is provided with adjusting bolt on paper direction of delivery's front and back both sides, adjusting bolt and carriage threaded connection, adjusting bolt's tip and the side of shower nozzle bottom plate are inconsistent.

Further, the below of shower nozzle bottom plate is provided with useless ink horn, be provided with scraper blade mechanism on the useless ink horn, scraper blade mechanism includes scavenge pipe and pivot, be provided with a plurality of water jets on the scavenge pipe, be connected with water supply mechanism on the scavenge pipe, the pivot rotates with useless ink horn to be connected, be provided with a plurality of scraper blades that correspond the water jet in the pivot, be provided with revolving cylinder on the useless ink horn, revolving cylinder's piston rod connection pivot.

Further, be provided with ink cooling mechanism on the printing mechanism, ink cooling mechanism includes the cooling cylinder, be provided with inlet tube and outlet pipe on the cooling cylinder, be provided with the cooling tube on the cooling cylinder, the cooling tube includes first ink pipe and second ink pipe, first ink pipe is the bending form, the second ink pipe is the straight line shape.

Compared with the prior art, the invention has the beneficial effects that: the paper to be printed is conveyed into the printing mechanism through the conveying mechanism, first printing of the first surface of the paper is carried out through the first printer on the printing support, then the first dryer is used for carrying out rapid drying, then the printing surface conversion of the paper is carried out through the plurality of conversion rollers, the second surface of the paper is printed through the second printer, then the second dryer is used for carrying out rapid drying on the paper again, then the paper enters the temporary storage mechanism for temporary storage, and the paper after temporary storage is cut through the cutting mechanism, so that the production efficiency is improved; meanwhile, the printing quality of the paper is improved through the integrated ink supply boxes on the first printer and the second printer.

Drawings

FIG. 1 is a schematic view of the overall front structure of a printing apparatus according to the present invention;

FIG. 2 is a schematic plan view of an integrated ink supply cartridge;

FIG. 3 is a schematic side view of an integrated ink supply cartridge;

FIG. 4 is a schematic top view of a showerhead baseplate;

FIG. 5 is a schematic top view of the showerhead baseplate after rotational adjustment on the support frame;

FIG. 6 is a schematic diagram of the structure of the squeegee for wiping and cleaning;

FIG. 7 is a schematic structural view of the wiping and cleaning device;

FIG. 8 is a schematic front view of the printing mechanism;

fig. 9 is a front view of the cutting mechanism;

FIG. 10 is a schematic cross-cut configuration of a first knife roll and a second knife roll in a cutting configuration;

FIG. 11 is a schematic view of the first conveyor belt and the second conveyor belt in the collection area;

FIG. 12 is a schematic structural diagram of a temporary storage mechanism;

fig. 13 is a schematic structural view of the ink cooling mechanism.

Reference numerals: 1. a conveying mechanism; 2. a printing mechanism; 201. a printing support; 202. a first printer; 203. a second printer; 204. a switching roller; 205. a first dryer; 206. a second dryer; 207. a spray head; 208. an ink supply cartridge; 209. an ink return pipe; 210. an ink supply tube; 211. an ink supply chamber; 213. a first regulating block; 214. a second regulating block; 215. a first electromagnetic regulating valve; 216. an oven; 217. a conveying roller; 218. a heating rod; 219. a blower; 3. a temporary storage mechanism; 301. a temporary storage box; 302. fixing a bracket; 303. moving the support; 304. a first fixed roller; 305. a second fixed roller; 306. a guide post; 4. a cutting mechanism; 401. cutting a support; 402. a slitting zone; 403. a cross-cut zone; 404. a collection region; 405. a longitudinal cutter block; 406. a slitting knife; 407. a first knife roll; 408. a second knife roll; 409. a transverse cutter; 410. a first conveyor belt; 411. a second conveyor belt; 412. pressing a plate; 413. a pinch roller; 414. a third conveyor belt; 415. a lifting mechanism; 416. a driving roller; 417. a scanner; 501. a support frame; 502. supporting a step; 503. a nozzle base plate; 504. a gap; 505. adjusting the bolt; 506. a kidney-shaped hole; 507. fixing the bolt; 601. a waste ink cartridge; 602. cleaning the tube; 603. a rotating shaft; 604. a water jet; 605. a squeegee; 606. a rotating cylinder; 607. a moving mechanism; 701. a cooling cylinder; 702. a water inlet pipe; 703. a water outlet pipe; 704. a first ink tube; 705. a second ink tube.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a number" or "a number" means two or more unless explicitly specified otherwise.

The present invention is further explained with reference to fig. 1 to 13.

A fully automated dual-sided multi-color printing apparatus, comprising: a transport mechanism 1 for continuously transporting the roll paper to the printing mechanism 2; the printing mechanism 2 comprises a printing support 201, a first printer 202 and a second printer 203 are arranged on the printing support 201, a conversion roller 204 is arranged between the first printer 202 and the second printer 203, a first dryer 205 and a second dryer 206 are arranged on the printing support 201, the first printer 202 and the second printer 203 respectively comprise a plurality of spray heads 207, a plurality of ink supply boxes 208 and a plurality of ink return pipes 209, an ink supply pipe 210 is arranged on the ink supply box 208, an ink supply cavity 211 is arranged in the ink supply pipe 210, a plurality of first adjusting blocks 213 are arranged on the ink supply pipe 210, a first electromagnetic adjusting valve 215 is arranged on each first adjusting block 213, the first adjusting blocks 213 are connected with the spray heads 207 through hoses, a pressure sensor (not shown in the drawing) is arranged inside each first adjusting block 213, and a second adjusting block 214 is arranged on each ink return pipe 209, a second electromagnetic regulating valve (not shown in the figures) is arranged on the second regulating block 214, the second regulating block 214 is connected with the spray head 207 through a hose, and the ink return pipe 209 is connected with an ink storage tank; a temporary storage mechanism 3 located between the printing mechanism 2 and the cutting mechanism 4 for temporarily storing the printed paper; and a cutting mechanism 4 for cutting the printed printing paper.

Preferably, conveying mechanism 1 includes the transfer gantry, can place the package on the transfer gantry and beat printing paper, and can make the package beat printing paper and rotate and put paper, still be provided with a plurality of tensioning rollers on the transfer gantry, make promptly beat printing paper and keep certain tensile force in transportation process through the tensioning roller, improve and print the quality.

As shown in fig. 1 and 8, during printing, the printing paper is fed into the first printer 202 through the feeding mechanism 1 to perform single-sided inkjet printing, then the printed paper is fed into the first dryer 205 to be dried rapidly, when the printing paper comes out from the first dryer 205, the non-printed side of the printing paper is fed into the second printer 203 through the conversion roller 204 to be printed, and then the printing paper is dried through the second dryer 206, and is temporarily stored through the temporary storage mechanism 3, and finally the printing paper is fed to the cutting mechanism 4 to be cut, and packaging is completed, so that continuous full-automatic double-sided printing is performed on the printing paper through continuous feeding of the rolled printing paper, and the printing efficiency of double-sided printing is improved.

As shown in fig. 8, preferably, in the present embodiment, three conversion rollers 204 are provided, that is, when a first side of the printing paper is printed, the printing side is fed into the first printer 202, and by converting three consecutive conversion rollers 204, the printing paper can be fed into the second printer 203 with the first side facing downward and the opposite second side facing upward, so that the printing paper can be effectively changed, and the printing efficiency can be improved.

As shown in fig. 2 and 3, before printing, the first electromagnetic regulating valve 215 is closed, the ink tank on the printer supplies ink to the ink supply box 208, so that the ink supply box 208 and the ink supply cavity 211 of the ink supply tube 210 are filled with ink, during printing, the first electromagnetic regulating valve 215 is opened to communicate the ink supply cavity 211 of the ink supply tube 210 with the regulating block, so that ink can enter the nozzles 207 through the regulating block to perform ink jet printing, and during printing, the pressure of the ink flowing through the regulating block is detected in real time by a pressure sensor in the regulating block, and the pressure of the ink entering the nozzles 207 is changed by regulating the amount of the ink flowing through the regulating block through the first electromagnetic regulating valve 215, so that the pressure of the ink between the nozzles 207 is kept at the same level, and during each ink jet, the amount of the ink entering the nozzles 207 is much smaller than the ejection amount of the ink from the nozzles 207, the ink flowing through the nozzles 207 flows out from the nozzles 207 and enters the ink return tube 209, the remaining ink is delivered to the ink tank through the ink return pipe 209 for circulation, and when the pressure of the ink flowing through one of the nozzles 207 drops, the pressure of the ink can be adjusted through the adjustment effect of the second electromagnetic adjusting valve, so that the printing quality of each nozzle 207 is ensured to be consistent.

As shown in fig. 8, the first dryer 205 and the second dryer 206 of the preferred embodiment each include an oven 216, a plurality of conveying rollers 217 and a plurality of heating rods 218 are disposed in the oven 216, and an air blower 219 is disposed on the oven 216, so that when the printed paper enters the oven 216 and is conveyed around the plurality of conveying rollers 217, the printed paper is dried by heating of the heating rods 218, and air is blown into the oven 216 by the air blower 219, thereby accelerating drying of the printed paper and improving drying efficiency.

As shown in fig. 9 to 11, the cutting mechanism 4 preferred in this embodiment includes a cutting support 401, the cutting support 401 is provided with a longitudinal cutting area 402, a transverse cutting area 403 and a collecting area 404, the longitudinal cutting area 402 is provided with a longitudinal cutting block 405, the longitudinal cutting block 405 is provided with a longitudinal cutter 406, printing paper can be longitudinally cut into half and half by the longitudinal cutter 406 on the longitudinal cutting block 405, the transverse cutting area 403 is provided with a first cutter roller 407 and a second cutter roller 408 which are distributed up and down, the first cutter roller 407 and the second cutter roller 408 are respectively provided with a transverse cutter 409 corresponding to each other, when transverse cutting is performed, the first cutter roller 407 and the second cutter roller 408 are synchronously rotated, when another transverse cutter 409 contacts with each other, the paper can be cut by the contact extrusion of the two transverse cutters 409, the collecting area 404 is provided with a first conveyer belt 410 and a second conveyer belt 411, and the paper after longitudinal cutting and transverse cutting is successively conveyed and laminated to a package by the first conveyer belt 410 and the second conveyer belt 411 Bench to directly pack by the workman, improve the cutting efficiency and the packing efficiency of paper.

Preferably, a telescopic mechanism is arranged between the longitudinal cutter block 405 and the longitudinal cutter 406 to realize the telescopic of the longitudinal cutter 406; the cutting support 401 is provided with a driving mechanism for driving the first knife roller 407 and the second knife roller 408 to rotate, so as to drive the first knife roller 407 and the second knife roller 408 to rotate synchronously, ensure that the two transverse cutters 409 can accurately abut together after rotating for a circle, and improve the cutting quality.

As shown in fig. 9, preferably, the cutting support 401 is provided with a plurality of pairs of driving rollers 416, and the pairs of driving rollers 416 are respectively distributed on two sides of the longitudinal cutting area 402 and the transverse cutting area 403, so as to facilitate conveying of paper during cutting of the paper, and the driving rollers 416 are wrapped with a sponge layer, so that printing content on the paper is prevented from being worn during conveying.

As shown in fig. 9, preferably, a scanner 417 is disposed on the cutting frame 401, and the scanner 417 is located in the slitting area 402, and scans and checks the printed content on the paper in real time, and notifies a worker to perform processing after cutting, so as to ensure the printing quality.

As shown in fig. 11, in the preferred embodiment, a pressing plate 412 is disposed above the first conveying belt 410, a plurality of pressing wheels 413 are disposed on the pressing plate 412, when the cut paper enters the first conveying belt 410, the paper is pressed flat by the pressing wheels 413 on the pressing plate 412, so as to prevent the edge of the cut paper from tilting and affecting the stacking quality of the paper, a third conveying belt 414 is disposed above the second conveying belt 411, a lifting mechanism 415 is connected to the second conveying belt 411, when the paper is pressed flat, the paper can be brought onto the second conveying belt 411 with the aid of the third conveying belt 414, at this time, the second conveying belt 411 stops operating, and when the paper is stacked on the second conveying belt 411, the lifting mechanism 415 moves the second conveying belt 411 downward by a distance so that subsequent paper can be stacked continuously, when the number of paper on the second conveying belt 411 reaches a certain stacking number, and the second conveyor belt 411 is started again to convey the stacked paper to the packaging table, so that the packaging efficiency of the paper is improved.

Preferably, a placing groove is formed in the pressing plate 412, and when the pressing wheel 413 is installed, the rotating shaft of the pressing wheel 413 is directly placed in the placing groove, that is, the paper is pressed flatly by the gravity of the pressing wheel 413, so that the pressing mark on the paper is avoided.

As shown in fig. 12, the temporary storage mechanism 3 of the preferred embodiment includes a temporary storage box 301, a fixed bracket 302 and a movable bracket 303 capable of sliding vertically are disposed in the temporary storage box 301, a plurality of first fixed rollers 304 are rotated on the fixed bracket 302, a plurality of second fixed rollers 305 are rotated on the movable bracket 303, the first fixed rollers 304 and the second fixed rollers are arranged in a staggered manner, before temporary storage, the movable bracket 303 is moved upward to the highest point, when printing paper enters the temporary storage box 301, the printing paper bypasses the first fixed rollers 304 and the second fixed rollers 305 in a staggered manner until all the first fixed rollers 304 and the second fixed rollers 305 wind paper, so that the printed paper can be temporarily stored, when the printing mechanism 2 temporarily stores printing paper and before it reproduces printing paper, the movable bracket 303 can be moved downward to reduce the distance to the fixed bracket 302, thereby avoiding the operation of the temporary cutting mechanism 4, the normal production and packaging efficiency of the paper are ensured.

Preferably, a lifting motor is arranged on the temporary storage box 301, and the lifting motor is connected with the movable support 303 through a lifting belt, so as to drive the movable support 303 to vertically move.

As shown in fig. 12, the temporary storage box 301 preferably has a plurality of guide posts 306 socially free, and the moving rack 303 is slidably connected to the guide posts 306, so that the guide posts 306 improve the moving efficiency of the moving rack 303 and prevent the sliding during the moving.

As shown in fig. 4 and 5, in the present embodiment, a support frame 501 is disposed on each of the first printer 202 and the second printer 203, a center of the support frame 501 is a printing region, a support step 502 is disposed around the printing region, a head base plate 503 is disposed on the support step 502, the head 207 is mounted on the head base plate 503, a gap 504 is disposed between a side edge of the head base plate 503 and the support frame 501, adjusting bolts 505 are disposed on the support frame 501 on front and rear sides in a paper conveying direction, the adjusting bolts 505 are in threaded connection with the support frame 501, an end of the adjusting bolt 505 abuts against a side surface of the head base plate 503, the head base plate 503 on the support frame 501 is angularly adjusted before reprinting, and when adjusting, the head base plate 503 can rotate on the support step 502 of the support frame 501 by loosening or tightening the adjusting bolts 505 on both sides of the support frame 501, and then screwing all the adjusting bolts 505 to fix the nozzle bottom plate 503 on the supporting step 502, then performing a distance trial printing on the paper, and repeating the process until the printed content on the paper does not deviate any more, thereby improving the subsequent printing quality.

As shown in fig. 4 and 5, preferably, the nozzle base plate 503 is provided with through waist-shaped holes 506 on the left and right sides in the paper conveying direction, the waist-shaped holes 506 are provided with fixing bolts 507, the fixing bolts 507 are in threaded connection with the supporting steps 502, the width of the waist-shaped holes 506 is larger than the screw diameter of the fixing bolts 507 and smaller than the diameter of the heads of the fixing bolts 507, the heads of the fixing bolts 507 are in contact with the nozzle base plate 503, that is, when the nozzle base plate 503 needs to be adjusted, the fixing bolts 507 are firstly unscrewed, then the nozzle base plate 503 is rotationally adjusted by the adjusting bolts 505, and during adjustment, the screws of the fixing bolts 507 can move in the waist-shaped holes 506, and after each adjustment, the fixing bolts 507 are not screwed until the adjustment is completed, the fixing bolts 507 are screwed to further fix the nozzle base plate 503, the printing quality is improved.

As shown in fig. 6, preferably, a moving mechanism 607 is disposed between the supporting frame 501 and the printing support 201, and the supporting frame 501 and the nozzle bottom plate 503 can be driven by the moving mechanism 607 to move, so as to improve the printing quality.

As shown in fig. 6 and 7, in the present embodiment, a waste ink cartridge 601 is preferably disposed below the nozzle bottom plate 503, a scraper 605 mechanism is disposed on the waste ink cartridge 601, the scraper 605 mechanism includes a cleaning pipe 602 and a rotating shaft 603, a plurality of water nozzles 604 are disposed on the cleaning pipe 602, a water supply mechanism is connected to the cleaning pipe 602, the rotating shaft 603 is rotatably connected to the waste ink cartridge 601, a plurality of scrapers 605 corresponding to the water nozzles 604 are disposed on the rotating shaft 603, a rotary cylinder 606 is disposed on the waste ink cartridge 601, and a piston rod of the rotary cylinder 606 is connected to the rotating shaft 603.

After the printing device finishes one complete printing, the rotary cylinder 606 is started to drive the rotary shaft 603 to rotate, so that the end of the scraper 605 on the rotary shaft 603 faces the nozzle bottom plate 503 upwards, then the nozzle bottom plate 503 is lowered until the scraper 605 is abutted against the bottom surface of the nozzle bottom plate 503, then the nozzle bottom plate 503 is moved transversely leftwards, so that the end of the scraper 605 simultaneously scrapes ink on the bottom surfaces of the nozzle 207 and the nozzle bottom plate 503, when the nozzle bottom plate 503 moves to the end point and then rises and moves rightwards to return to the starting point of scraping, at this time, the rotary cylinder 606 drives the rotary shaft 603 to rotate again, so that the scraper 605 on the rotary shaft 603 faces the water spraying port 604 of the cleaning pipe 602, then water is supplied into the cleaning pipe 602 through a water supply system, clean water is sprayed onto the scraper 605 through the water spraying port 604, so that the ink on the scraper 605 is washed, and the washed waste ink is collected through the waste ink box 601, after washing the completion, revolving cylinder 606 restarts again, with the pivot 603 turn back again and strike off the position, strike off scraper blade 605 again after waiting for shower nozzle bottom plate 503 to descend, strike off the scraping that can accomplish the ink after striking off once more, shower nozzle bottom plate 503 moves to the printing position and begins to print, scraper blade 605 then washes through scavenge pipe 602 once more, wait for next scraping off, thereby in time strike off remaining ink on shower nozzle 207 and shower nozzle bottom plate 503 after printing the completion at every turn, avoid influencing the printing quality of paper, and need not to strike off the ink on the shower nozzle bottom plate 503 through artifical manual, improve and strike off efficiency.

Preferably, after the rotating shaft 603 rotates, a certain included angle is formed between the scraper 605 on the rotating shaft 603 and the nozzle bottom plate 503, that is, an acute angle is formed between the scraper 605 and the nozzle bottom plate 503, so that the scraping efficiency of the ink is improved.

As shown in fig. 13, the printing mechanism 2 of the preferred embodiment is provided with an ink cooling mechanism, the ink cooling mechanism includes a cooling cylinder 701, the cooling cylinder 701 is provided with a water inlet pipe 702 and a water outlet pipe 703, the cooling cylinder 701 is provided with a cooling pipe, the cooling pipe includes a first ink pipe 704 and a second ink pipe 705, the first ink pipe 704 is curved, the second ink pipe 705 is straight, during printing, the cooling water enters the cooling cylinder 701 through the water inlet pipe 702, and then is discharged out of the cooling cylinder 701 through the water outlet pipe 703, the ink enters the cooling pipe from the first ink pipe 704 and is discharged out of the second ink pipe 705, that is, after the ink enters the cooling cylinder, the ink is cooled through heat exchange with the cooling water in the cooling cylinder 701, thereby preventing the ink quality from being affected by the rise of the temperature of the ink during printing, and when the cooled ink enters the nozzle 207, can absorb the heat on the shower nozzle 207, carry out certain cooling to shower nozzle 207, the cooling arrangement on the printer of deuterogamying improves the cooling effect to shower nozzle 207, improves shower nozzle 207's life, improves the quality of printing in succession.

Preferably, a plurality of cooling pipes are arranged in the cooling cylinder 701, so that the ink with different colors can be cooled on the multicolor printer.

As shown in fig. 13, the first ink tube 704 may be bent in a folded shape or a spiral shape, so as to increase a contact area of the first ink tube 704 with the cooling water in the cooling cylinder 701, thereby increasing the cooling effect of the ink.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A fully automatic duplex multi-color printing apparatus, comprising:

the conveying mechanism is used for continuously conveying the package printing paper to the printing mechanism;

the printing mechanism comprises a printing support, a first printer and a second printer are arranged on the printing support, a conversion roller is arranged between the first printer and the second printer, a first dryer and a second dryer are arranged on the printing support, the first printer and the second printer respectively comprise a plurality of nozzles, a plurality of ink supply boxes and a plurality of ink return pipes, the ink supply boxes are provided with ink supply pipes, ink supply cavities are arranged in the ink supply pipes, the ink supply pipes are provided with a plurality of first adjusting blocks, the first adjusting blocks are provided with first electromagnetic adjusting valves, the first adjusting blocks are connected with the nozzles through hoses, pressure sensors are arranged inside the first adjusting blocks, the ink return pipes are provided with second adjusting blocks, the second adjusting blocks are provided with second electromagnetic adjusting valves, and the second adjusting blocks are connected with the nozzles through hoses, the ink return pipe is connected with the ink storage tank;

the temporary storage mechanism is positioned between the printing mechanism and the cutting mechanism and is used for temporarily storing the printed paper;

and the cutting mechanism is used for cutting the printing paper after printing.

2. The fully automated dual-sided multi-color printing apparatus of claim 1, wherein: the first dryer and the second dryer both comprise drying ovens, a plurality of conveying rollers and a plurality of heating rods are arranged in the drying ovens, and air blowers are arranged on the drying ovens.

3. The fully automated dual-sided multi-color printing apparatus of claim 2, wherein: the cutting mechanism comprises a cutting support, wherein a longitudinal cutting area, a transverse cutting area and a collecting area are arranged on the cutting support, a longitudinal cutting knife block is arranged in the longitudinal cutting area, a longitudinal cutting knife is arranged on the longitudinal cutting knife block, a first knife roller and a second knife roller which are distributed vertically are arranged in the transverse cutting area, the transverse cutting knife which correspond to each other is arranged on the first knife roller and the second knife roller respectively, and a first conveying belt and a second conveying belt are arranged in the collecting area.

4. The fully automated dual-sided multi-color printing apparatus of claim 3, wherein: the conveying device is characterized in that a pressing plate is arranged above the first conveying belt, a plurality of pressing wheels are arranged on the pressing plate, a third conveying belt is arranged above the second conveying belt, and the second conveying belt is connected with a lifting mechanism.

5. The fully automated dual-sided multi-color printing apparatus of claim 4, wherein: the temporary storage mechanism comprises a temporary storage box, a fixed support and a movable support capable of vertically sliding are arranged in the temporary storage box, a plurality of first fixed rollers are arranged on the fixed support in a rotating mode, a plurality of second fixed rollers are arranged on the movable support in a rotating mode, and the first fixed rollers and the second rollers are arranged in a staggered mode.

6. The fully automated dual-sided multi-color printing apparatus of claim 5, wherein: all be provided with the carriage on first printer and the second printer, the center of carriage is for printing the district, is provided with the support step around printing the district, be provided with the shower nozzle bottom plate on the support step, on shower nozzle installation and the shower nozzle bottom plate, be provided with the clearance between the side of shower nozzle bottom plate and the carriage, the carriage is provided with adjusting bolt on both sides around paper direction of delivery, adjusting bolt and carriage threaded connection, adjusting bolt's tip is inconsistent with the side of shower nozzle bottom plate.

7. The fully automated dual-sided multi-color printing apparatus of claim 5, wherein: the utility model discloses a shower nozzle bottom plate, including shower nozzle bottom plate, pivot, scraper blade, shower nozzle bottom plate, the below of shower nozzle bottom plate is provided with useless ink horn, be provided with scraper blade mechanism on the useless ink horn, scraper blade mechanism includes scavenge pipe and pivot, be provided with a plurality of water jets on the scavenge pipe, be connected with water supply mechanism on the scavenge pipe, the pivot rotates with useless ink horn to be connected, be provided with a plurality of scraper blades that correspond the water jet in the pivot, be provided with revolving cylinder on the useless ink horn, revolving cylinder's piston rod connection pivot.

8. The fully automated dual-sided multi-color printing apparatus of claim 5, wherein: the last ink cooling body that is provided with of printing mechanism, ink cooling body includes the cooling cylinder, be provided with inlet tube and outlet pipe on the cooling cylinder, be provided with the cooling tube on the cooling cylinder, the cooling tube includes first ink pipe and second ink pipe, first ink pipe is crooked form, the second ink pipe is the linear.