CN218343077U - Ink-jet printing device - Google Patents

Abstract

The utility model relates to an ink-jet printing device, including print module, base and translation device, print module installs in the top of base, print module includes main frame and lift drive, a plurality of shower nozzle position adjusting devices are installed to the bottom of main frame, shower nozzle position adjusting device includes bottom plate, shower nozzle installing frame, fixed block and adjusting unit, and the shower nozzle is installed in shower nozzle installing frame, and shower nozzle installing frame is installed on the bottom plate, the fixed block is located the left and right both ends of shower nozzle installing frame and installs on the bottom plate, adjusting unit locates on the fixed block and with the butt of shower nozzle installing frame, lift drive set up in on the main frame; the translation device is connected with the printing module and the base respectively. The utility model discloses can realize the adjustment to the height of shower nozzle, inclination, left and right sides position, front and back position, beat angle to have print stable, print high quality's beneficial effect.

Description

Ink-jet printing device

Technical Field

The utility model relates to an inkjet printing equipment technical field, concretely relates to inkjet printing device.

Background

In the printing process of the ink-jet printer, the requirement on the printing precision of the spray head is high, and in the actual use process of the spray head, the following problems exist:

due to the processing error of the bottom plate or the deformation of the bottom plate after processing, the nozzle can generate an inclination angle after being installed on the bottom plate, and the drop point of ink drops sprayed by the obliquely installed nozzle is inaccurate, so that the printing resolution is influenced; in addition, since the height of the head from the printing medium is also maintained within a target range, the height and inclination angle of the head need to be adjusted.

In actual printing, the printing module is located above the printing platform, the printing medium is flatly laid on the printing platform, the distance between the spray head and the side line of the printing medium needs to meet the preset requirement, when more spray heads are installed on the bottom plate, the initial positions of the spray heads located in the same row are located on the same straight line, in addition, the long edge of the spray head needs to be perpendicular to the side line of the printing medium, otherwise, the printed patterns are inclined, and therefore the left position and the right position of the spray head and the deflection angle need to be adjusted.

In the printing process, ink can be mixed with bubbles when flowing through each component, the bubbles easily cause the empty spraying of the printing nozzle, the empty spraying can cause the broken line of the printed pattern, and the printing quality is influenced.

In large-scale high-speed one-pass inkjet printer, the printing medium is placed on the platform that induced drafts of printing dolly below, the top of the platform that induced drafts is arranged in to the printing dolly, in order to realize the printing of the high-speed wide breadth of polychrome, need to install multiunit shower nozzle group on the printing dolly, every group shower nozzle group is formed by the vertical crisscross concatenation of a plurality of shower nozzles, a plurality of shower nozzle groups are arranged side by side along the printing medium moving direction, consequently, the whole shared area of printing module is great, then its below complex platform that induced drafts also can be longer along the size of printing medium moving direction, when printing platform is longer, the laminating degree of printing medium and platform will reduce, lead to the roughness decline of printing medium, in the moving process of printing medium, the phenomenon of bulging appears easily, not only make the motion control precision of printing medium worsen, print quality pattern is poor, the easy shower nozzle that scratches of the printing medium that rises leads to the shower nozzle damage.

In addition, the air suction platform with high flatness has higher cost; when the air suction platform is installed, the technical difficulty of leveling is high; the contact area between the air suction platform and the printing medium is large, and when the printing medium runs at high speed, static electricity can be generated to adsorb ink drops, so that the drop points of the ink drops are inaccurate, and the printing quality is influenced; when the surface of the printing medium is provided with the special coating, the friction between the printing medium and the air suction platform can damage the coating on the surface of the printing medium due to large contact area.

In summary, the prior art has the following problems:

1) The height, the inclination angle, the front and back positions, the left and right positions and the deflection angle of the spray head need to be adjusted;

2) An air suction platform is arranged in a printing area to support and adsorb a printing medium to keep the printing medium flat, but the air suction platform has the problems of high cost, difficulty in leveling, inaccurate drop point of ink droplets caused by static electricity generation, damage to a coating on the surface of the printing medium and damage to a pattern on the surface of the printed medium;

3) The ink may be mixed with bubbles when flowing through each component, the bubbles easily cause the empty spraying of the printing nozzle, the empty spraying can cause the broken line of the printed pattern, and the printing quality is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an ink-jet printing device to solve the not enough that exists among the prior art, the utility model discloses the technical problem who solves realizes through following technical scheme.

An ink-jet printing device comprises a printing module, a base and a translation device, wherein the printing module is installed above the base and comprises a main frame and a lifting driving device, a plurality of spray head position adjusting devices are installed at the bottom of the main frame, ink curing devices are installed on the lateral sides of the spray head position adjusting devices, each spray head position adjusting device comprises a bottom plate, a spray head installing frame, a fixed block and an adjusting unit, a spray head is installed in each spray head installing frame, the spray head installing frames are installed on the bottom plates, the fixed blocks are located at the left end and the right end of each spray head installing frame and are installed on the bottom plates, the adjusting units are arranged on the fixed blocks and are abutted against the spray head installing frames, and the adjusting units are used for adjusting the height, the inclination angle, the front-back position, the left-right position and the deflection angle of each spray head installing frame; the lifting driving device is arranged on the main frame and is used for driving the spray head position adjusting device to move up and down; the translation device is respectively connected with the printing module and the base and used for adjusting the front and back positions of the printing module.

Preferably, an ink supply device is arranged on the main frame above the spray head position adjusting device, and the ink supply device comprises a degassing circulation device and an anti-suck-back device; the degassing circulation device comprises a secondary ink box, a degas filter and an ink pump which are respectively communicated with the secondary ink box, and the suck-back prevention device comprises a buffer ink box and an electromagnetic valve which are mutually connected; the ink outlet of the secondary ink box is communicated with the spray head and is used for supplying ink to the spray head, and the buffer ink box is communicated with the secondary ink box.

Preferably, the main frame includes outer side plates respectively located at the left and right sides, a back plate is transversely arranged between the two outer side plates, a lifting plate is arranged at the front side of the back plate, the nozzle position adjusting device and the ink solidifying device are mounted on the lifting plate, the lifting driving device is arranged between the back plate and the lifting plate, and the lifting driving device drives the lifting plate to move up and down so as to enable the nozzle position adjusting device to move up and down.

Preferably, the left side and the right side of the front surface of the lifting plate are respectively and longitudinally provided with an inner side plate, the inner side plates are positioned on the inner sides of the outer side plates, the front side of each inner side plate is provided with a front side plate, the lifting plate, the inner side plates and the front side plates are mutually enclosed to form an installation frame, and the spray head position adjusting device and the ink curing device are installed in the installation frame.

Preferably, a plurality of material rollers are installed on the base, the material rollers are used for bearing and conveying printing media, the material rollers comprise a first material roller, a second material roller, a third material roller and a fourth material roller which are located below the printing module, the bottom surface of a spray head on the printing module is parallel to the upper surface of the printing media below the spray head, the height of the first material roller is lower than that of the second material roller, and the height of the fourth material roller is lower than that of the third material roller.

Preferably, the adjusting unit comprises a height adjusting unit, a front and back position adjusting unit and a deflection adjusting unit, the height adjusting unit is used for adjusting the height and the inclination angle of the sprayer mounting frame, the front and back position adjusting unit is used for adjusting the front and back position of the sprayer mounting frame, and the deflection adjusting unit is used for adjusting the left and right position and the deflection angle of the sprayer mounting frame.

Preferably, the height adjustment unit includes a ball spring plunger I and ball adjustment screws I, the ball spring plunger I is mounted on the fixing blocks located at the front and rear ends of the shower nozzle mounting frame, the ball head portion of the lower end of the ball spring plunger I abuts against the upper surfaces of the front and rear ends of the shower nozzle mounting frame, the number of the ball adjustment screws I is three, and the ball head portions of the ball adjustment screws I are mounted on the bottom plate, one of the ball adjustment screws I abuts against the lower surface of the front end portion or the rear end portion of the shower nozzle mounting frame, and the other two ball adjustment screws I abut against the left and right sides of the rear end portion or the lower surface of the front end portion of the shower nozzle mounting frame, respectively.

Preferably, the front and rear position adjusting unit comprises a ball head adjusting screw II and a ball head spring plunger II which are respectively arranged on the fixing blocks at the front end and the rear end of the spray head mounting frame, and the ball head portions of the ball head adjusting screw II and the ball head spring plunger II are respectively abutted to the front side face and the rear side face of the spray head mounting frame.

Preferably, the deflection adjusting unit comprises a ball head adjusting screw III and a ball head spring plunger III, the ball head adjusting screw III is mounted on the fixed block, and the ball head portion of the ball head adjusting screw III abuts against the left side surface or the right side surface of the front end and the rear end of the nozzle mounting frame respectively; the ball head spring plunger III is arranged on the fixed block and located on the opposite side of the ball head adjusting screw III, and the ball head portion of the ball head spring plunger III is respectively abutted to the right side face or the left side face of the front end and the rear end of the spray head mounting frame.

Preferably, the number of the spray nozzle installation frames on the bottom plate is at least two, the spray nozzle installation frames are longitudinally arranged on the bottom plate and are arranged in parallel along the transverse direction, the spray nozzle installation frames are isosceles trapezoids, and the front ends and the rear ends of the adjacent spray nozzle installation frames are arranged in an inverted mode.

The utility model discloses following beneficial effect has:

1) Can realize effectively improving printing quality to the adjustment of the height of shower nozzle, inclination, left and right sides position, front and back position, beat angle, dismantle and change convenient and fast, effectively saved manpower and time cost.

2) The degassing circulation device is arranged to avoid the influence of the empty spraying of the spray head in the printing process on the printing quality;

3) The arrangement of the suck-back prevention device can prevent components from being damaged or a printer from being failed due to the fact that ink is sucked back into the negative pressure air path, so that the printer is safer and more reliable to work;

4) The printing area is divided into three small printing areas by the four material rollers, the distance between the two supporting rollers is shortened, and the shaking of the printing medium in the running process caused by overlong distance can be avoided, so that the printing medium in the printing area runs more stably to improve the printing quality.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a three-dimensional structure of the base of the present invention;

fig. 3 is a front view of the base of the present invention;

fig. 4 is a schematic perspective view of a printing module according to the present invention;

fig. 5 is a schematic perspective view of the lifting driving device of the present invention;

fig. 6 is a schematic perspective view of the main frame 1 according to the present invention;

fig. 7 is a schematic perspective view of the guiding device of the present invention;

FIG. 8 is a schematic perspective view of the ink solidifying device according to the present invention;

fig. 9 is a front view of the front side plate of the present invention;

fig. 10 is a schematic perspective view of a device for adjusting the position of a nozzle according to the present invention;

fig. 11 is a schematic top view of the device for adjusting the position of the nozzle according to the present invention;

fig. 12 is a schematic top view of the middle bottom plate according to the present invention;

fig. 13 is a schematic perspective view of an adjusting unit of the present invention;

fig. 14 is a schematic perspective view of another angle of the adjusting unit according to the present invention;

fig. 15 is a schematic top view of the adjusting unit of the present invention;

fig. 16 is a schematic perspective view of the nozzle mounting frame of the present invention;

fig. 17 is a schematic three-dimensional structure view of the middle fixing block of the present invention;

fig. 18 is a schematic perspective view of the ink supply device of the present invention;

the reference numbers in the figures are, in order: 1. a main frame, 11, an outer side plate, 12, a back plate, 13, a lifting plate, 14, an inner side plate, 15, a front side plate, 16, a support plate, 17, a blocking plate, 18, a rib plate, 19, a housing, 2, a nozzle position adjusting device, 21, a bottom plate, 211, a groove, 212, a sink groove, 213, a through hole, 22, a nozzle mounting frame, 221, a nozzle mounting hole, 222, a boss I,223, a boss II,224, a positioning column, 225, a platform, 226, an adjusting block, 227, a boss III,23, a nozzle, 231, a positioning block I,232, a positioning block II,24, a fixing block, 241, a fixing hole, 242, a receiving groove, 243, a bump, 2511, a ball spring plunger I,2512, a ball adjusting screw I,2521 and a ball adjusting screw II,2522, ball spring plungers II,2531, ball adjusting screws III,2532, ball spring plungers III,3, an ink curing device, 31, a support, 4, an ink supply device, 41, a secondary ink box, 42, a buffer ink box, 43, an electromagnetic valve, 44, a degas filter, 45, an ink pump, 51, a motor, 52, an axle seat, 53, a nut mounting seat, 54, a nut, 55, a screw rod, 561, a position sensor, 562, a travel switch, 57, an axle seat mounting plate, 58, a guide rail I,59, a slide block I,61, a guide rail II,62, a slide block II,63, a limiter, 7, a base, 71, a first material roller, 72, a second material roller, 73, a third material roller, 74 and a fourth material roller.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1:

referring to fig. 1, 4, 8, 10 and 11, an inkjet printing apparatus is improved in that: the printing module is arranged above the base 7 and comprises a main frame 1 and a lifting driving device, a plurality of spray head position adjusting devices 2 are arranged at the bottom of the main frame 1, an ink curing device 3 is arranged on the lateral side of each spray head position adjusting device 2, each spray head position adjusting device 2 comprises a bottom plate 21, a spray head mounting frame 22, a fixed block 24 and an adjusting unit, a spray head 23 is arranged in each spray head mounting frame 22, each spray head mounting frame 22 is arranged on the corresponding bottom plate 21, the fixed blocks 24 are located at the left end and the right end of each spray head mounting frame 22 and are arranged on the corresponding bottom plate 21, each adjusting unit is arranged on the corresponding fixed block 24 and is abutted against the corresponding spray head mounting frame 22, and each adjusting unit is used for adjusting the height, the inclination angle, the front position, the rear position, the left position, the right position and the deflection angle of the spray head mounting frame 22; the lifting driving device is arranged on the main frame 1 and used for driving the spray head position adjusting device 2 to move up and down; the translation device is respectively connected with the printing module and the base 7 and is used for adjusting the front and back positions of the printing module.

In this embodiment, the height of the head position adjusting device 2 is roughly adjusted by the lifting driving device, so that the height of the head 23 is roughly adjusted; roughly adjusting the front and back positions of the printing module through a translation device, so as to roughly adjust the front and back positions of the spray head 23; then, the height, the inclination angle, the front-back position, the left-right position and the deflection angle of the nozzle 23 are finely adjusted by the adjusting unit, so that the nozzle 23 and the printing medium below the nozzle are at a proper height, the bottom surface of the nozzle 23 is parallel to the upper surface of the printing medium below the nozzle, the long edge of the nozzle 23 is perpendicular to the side line of the printing medium, and the initial positions of the nozzles in the same row are on the same straight line, thereby improving the printing quality.

Due to the structural limitation of the nozzle 23, the height, the inclination angle, the front-back position, the left-right position, the deflection angle, and other parameters of the nozzle 23 cannot be directly adjusted by the adjusting unit, because the adjusting unit directly applies force to the nozzle 23 itself, which is likely to damage the outer surface of the nozzle, thereby affecting the service life of the nozzle 23, and in addition, the structure of the nozzle 23 does not have a point of force convenient for the adjusting unit to adjust, therefore, the nozzle mounting frame 22 is provided in the present embodiment, the nozzle 23 is fixedly mounted in the nozzle mounting frame 22, and then the position of the nozzle mounting frame 22 is adjusted by the adjusting unit to adjust the position of the nozzle 23.

As shown in fig. 11, the front and rear ends of the nozzle 23 are respectively provided with an L-shaped positioning block I231 and a positioning block II232 having a V-shaped groove, as shown in fig. 16, the front and rear ends of the nozzle mounting frame 22 are respectively provided with positioning columns 224, the inner side of the L-shaped corner of the positioning block I231 abuts against the positioning column 224 at one end of the nozzle mounting frame 22, the V-shaped groove at the outer side of the positioning block II232 abuts against a positioning bead 224 at the other end of the nozzle mounting frame 22, so as to position the nozzle 23 and the nozzle mounting frame 22, the positioning blocks I231 and II232 are respectively provided with mounting holes, and the positioning blocks I231 and II232 are connected with the nozzle mounting frame 22 by screws, so as to fix the positions of the nozzle 23 and the nozzle mounting frame 22. As shown in fig. 17, the fixing block 24 is provided with fixing holes 241, the fixing block 24 is fixedly mounted on the bottom plate 21 by screws, the fixing block 24 is located at the front and rear sides of the head mounting frame 22, and the adjusting unit is provided on the fixing block 24 and abuts against the head mounting frame 22.

When the nozzle 23 needs to be replaced, the nozzle 23 is replaced by detaching the nozzle 23 from the nozzle mounting frame 22. The nozzle mounting hole on the nozzle mounting frame 22 is formed by fine machining, and the position of the nozzle 23 can be finely adjusted through the positioning block I231, the positioning block II232 and the positioning column 224, so that the mounting precision of the nozzle 23 mounted on the nozzle mounting frame 22 can be ensured; the installation position of the nozzle installation frame 22 relative to the bottom plate 21 is adjusted and meets the requirements, namely the installation position of the nozzle installation frame 22 relative to the printing medium is adjusted and meets the requirements, so that the printing requirements can be met without secondary adjustment, the nozzle installation frame is convenient and quick to detach and replace, and manpower and time cost are effectively saved.

The ink solidifying device 3 is arranged between the adjacent nozzle position adjusting devices 2,

this embodiment can realize effectively improving printing quality to the adjustment of the height of shower nozzle, inclination, left and right sides position, front and back position, beat angle, dismantles and changes convenient and fast, has effectively saved manpower and time cost.

Further, referring to fig. 6, the main frame 1 includes outer side plates 11 respectively located at left and right sides, a back plate 12 is transversely disposed between the two outer side plates 11, a lifting plate 13 is disposed at a front side of the back plate 12, the nozzle position adjusting device 2 and the ink solidifying device 3 are mounted on the lifting plate 13, the lifting driving device is disposed between the back plate 12 and the lifting plate 13, and the lifting driving device drives the lifting plate 13 to move up and down so as to move the nozzle position adjusting device up and down.

Further, referring to fig. 5, the lifting driving device includes a motor 51, a nut 54 and a screw 55, the motor 51 is mounted on the back plate 12, an output end of the motor 51 is connected with one end of the screw 55 through a coupler, and the nut 54 is mounted on the lifting plate 13 and is connected with the screw 55 in a matching manner.

Further, a shaft seat 52 is installed on the back plate 12, the motor 51 is installed on the lower end surface of the shaft seat 52, the coupler is installed on the shaft seat 52, a bearing is installed on the shaft seat 52, and the lower end of the lead screw 55 is arranged in the bearing in a penetrating manner and is rotatably connected with the shaft seat 52. During the lifting operation, the motor 51 rotates to drive the screw rod 55 to rotate, so as to drive the nut 54 to move up and down relative to the screw rod 55, and further drive the lifting plate 13 to move up and down, so as to adjust the height of the spray head position adjusting device 2.

Further, a nut mounting seat 53 is mounted on a rear surface of the lifting plate 13, and a nut 54 is mounted on the nut mounting seat 53.

Further, a position sensor 561 is installed on the rear surface of the back plate 12, and the position sensor 561 is matched with the nut mounting seat 53 in position and used for positioning the zero point position of the lifting driving device.

Further, travel switches 562 are respectively installed at the limit positions of the up-and-down movement of the nut mounting seat 53, and the travel switches 562 are used for controlling the up-and-down movement range of the nut mounting seat 53 within a safety stroke.

Further, a guiding device is arranged between the back plate 12 and the lifting plate 13.

Further, as shown in fig. 7, the guiding device includes a guide rail I58 mounted on the front surface of the back plate 12 and a slider I59 mounted on the rear surface of the lifting plate 13 and matching with the guide rail I58, wherein the guide rail I58 and the slider I59 are cooperatively connected.

Further, the translation device is a manual translation device or an electric translation device.

Further, referring to fig. 1, the translation device includes a guide rail II61 installed on the base 7 and located on the left and right sides of the printing module, and a slider II62 installed on the left and right sides of the printing module and connected with the guide rail II61 in a mutually matched manner, and a stopper 63 is further disposed on the guide rail II61 and located on the lateral side of the slider II 62. In this embodiment, the translation device is manual mobile device, and during the operation, the manual print module that promotes to make slider II62 slide for guide rail II61, thereby carry out coarse adjustment to the front and back position of print module, slider II62 is from taking the hasp, and the back is accomplished in the adjustment, and is fixed with the position locking of slider II62 through the hasp, with the rigidity that will print the module. The stopper 63 is disposed at a limit position of the forward and backward movement of the printing module to prevent the forward and backward movement of the printing module from exceeding a range.

Further, the front side and the rear side of the main frame 1 are respectively covered with a shell 19, and the shells 19 are movably connected with the main frame 1 through hinges.

Further, referring to fig. 6, inner side plates 14 are respectively and longitudinally arranged on the left side and the right side of the front surface of the lifting plate 13, the inner side plates 14 are located on the inner side of the outer side plate 11, a front side plate 15 is arranged on the front side of the inner side plate 14, the lifting plate 13, the inner side plates 14 and the front side plate 15 are enclosed with each other to form an installation frame, and the head position adjusting device 2 and the ink curing device 3 are installed in the installation frame.

Further, a support plate 16 is respectively disposed on the front surface of the lower end of the lifting plate 13 and the rear surface of the lower end of the front side plate 15, and the head position adjusting device 2 and the ink curing device 3 are erected on the support plate 16.

Further, the left and right sides in the installation frame is equipped with closure plate 17 respectively, backup pad 16 sets up in two between the closure plate 17.

Further, the ink curing device 3 is mounted on the support plate 16 by a bracket 31.

Further, the ink curing device 3 is installed on the same side of the head position adjusting device 2 as the moving direction of the printing medium. By the arrangement, the ink drops on the printing medium can be solidified conveniently and timely.

Further, the ink curing device 3 is a UV lamp.

Furthermore, a plurality of rib plates 18 are arranged on the supporting plate 16 to increase the strength.

Example 2:

on the basis of embodiment 1, referring to fig. 4 and 18, an ink supply device 4 is arranged on the main frame 1 above the nozzle position adjusting device 2, and the ink supply device 4 comprises a degassing circulation device and an anti-suck-back device; the degassing circulation device comprises a secondary ink box 41, a degas filter 44 and an ink pump 45 which are respectively communicated with the secondary ink box 41, and the suck-back prevention device comprises a buffer ink box 42 and an electromagnetic valve 43 which are mutually connected; the ink outlet of the secondary ink box 41 is communicated with the spray head 23 and is used for supplying ink to the spray head 23, and the buffer ink box 42 is communicated with the secondary ink box 41.

In this embodiment, an ink outlet of the secondary ink tank 41 is connected to the ink pump 45, the ink pump 45 pumps the ink in the secondary ink tank 41 through the degas filter 44 to remove the bubbles in the ink, and then the ink flows back into the secondary ink tank 41, so as to circularly degas the ink, thereby reducing the content of bubbles in the ink in the secondary ink tank 41, and avoiding the influence on the printing quality due to the occurrence of idle ejection of the nozzle 23 during the printing process.

The secondary ink box 41 is connected with a negative pressure gas path and used for adjusting a negative pressure value in an ink cavity of the secondary ink box 41, the negative pressure gas path is communicated with the secondary ink box 41 and is sequentially communicated with the electromagnetic valve 43 and the buffer ink box 42, the arrangement is characterized in that when a liquid level sensor in the ink cavity of the secondary ink box 41 fails, ink overflow due to excessive ink in the secondary ink box 41 possibly occurs, suck-back occurs along the negative pressure gas path, components in the negative pressure gas path are easily damaged during suck-back, the buffer ink box 42 is arranged, when suck-back occurs, the ink can be firstly sucked into the buffer ink box 42, a liquid level sensor is arranged in the buffer ink box 42, and when the liquid level sensor detects the ink amount, the ink supply from the main ink tank to the secondary ink box 41 can be controlled to stop, so that the components are damaged or the printer fails due to the suck-back of the ink into the negative pressure gas path, and the printer works more safely and reliably.

Example 3:

on the basis of embodiment 1 or 2, referring to fig. 2 and 3, a plurality of material rollers are mounted on the base 7, and the material rollers are used for carrying and conveying a printing medium, and include a first material roller 71, a second material roller 72, a third material roller 73 and a fourth material roller 74, which are located below the printing module, the bottom surface of the spray head 23 on the printing module is parallel to the upper surface of the printing medium below the spray head, the height of the first material roller 71 is lower than that of the second material roller 72, and the height of the fourth material roller 74 is lower than that of the third material roller 73.

Further, a first printing area is formed between the first material roller 71 and the second material roller 72, and the first printing area is an inclined plane; a second printing area is formed between the second material roller 72 and the third material roller 73, and the second printing area is a plane; a third printing area is formed between the third material roller 73 and the fourth material roller 74, and the third printing area is an inclined plane.

Further, the number of the nozzle position adjusting devices 2 is three, and the three nozzle position adjusting devices are respectively located above the first printing area, the second printing area and the third printing area.

Further, as shown in fig. 9 and 6, the front plate 15 and the support plate 16 are provided with inclined portions at left and right sides thereof, respectively, so that the heads 23 are parallel to the upper surface of the printing medium below the head position adjusting device 2 after the head position adjusting device is mounted on the support plate 16.

In the embodiment, the printing medium is supported and transmitted by the material roller, so that compared with a mode of supporting the printing medium by the air suction platform in the prior art, the cost is lower, and the adjustment of the flatness is converted into the adjustment of the parallelism, so that the adjustment is easier; the contact area between the supporting roller and the printing medium is reduced, and the roller rotates along with the movement of the printing medium, so that the relative motion between the roller and the printing medium is reduced, and the condition of damaging a coating or a pattern on the surface of the printing medium caused by friction is avoided; static electricity is not easy to generate, and the printing effect is better; according to the mode, the printing area is divided into three small printing areas through the four material rollers, the distance between the two supporting rollers is shortened, the phenomenon that the printing medium runs in the process due to the overlong distance can be avoided, and the printing medium in the printing area runs more stably to improve the printing quality.

Example 4:

on the basis of any of the foregoing embodiments, the adjusting unit includes a height adjusting unit, a front-back position adjusting unit, and a yaw adjusting unit, where the height adjusting unit is configured to adjust the height and the inclination angle of the nozzle mounting frame 22, the front-back position adjusting unit is configured to adjust the front-back position of the nozzle mounting frame 22, and the yaw adjusting unit is configured to adjust the left-right position and the yaw angle of the nozzle mounting frame 22.

In this embodiment, the height and the inclination angle of the nozzle mounting frame 22 are adjusted by the height adjusting unit, so that the height between the nozzle 23 and the printing medium is at a proper distance, and the bottom surface of the nozzle 23 is parallel to the plane of the printing medium, thereby avoiding the inaccuracy of the drop point of the ink droplet ejected by the nozzle 23; the front and rear positions of the nozzle mounting frame 22 are adjusted by the front and rear position adjusting unit, so that the initial positions of the nozzles 23 in the same row are positioned on the same straight line, and the process printing is facilitated; the left and right positions and the deflection angle of the nozzle mounting frame 22 are adjusted by the deflection adjusting unit, so that the long edge of the nozzle 23 is perpendicular to the side line of the printing medium, and the printed pattern is prevented from deflecting.

Further, the number of the nozzle installation frames 22 on the bottom plate 21 is at least two, the nozzle installation frames 22 are longitudinally arranged on the bottom plate 21 and are arranged in parallel along the transverse direction, the nozzle installation frames 22 are isosceles trapezoids, and the front end and the rear end of each of the adjacent nozzle installation frames 22 are arranged in an inverted mode.

In this embodiment, the nozzle installation frames 22 are isosceles trapezoids, and the front and rear ends of two adjacent nozzle installation frames 22 are arranged in an inverted manner, so that the distance between the nozzles 23 can be shortened to the maximum extent, and the space is saved more.

Further, the number of the nozzle mounting frames 22 on the bottom plate 21 is two.

Further, platforms 25 are respectively arranged at the left end and the right end of the sprayer mounting frame 2, adjusting blocks 26 protruding outwards are arranged on the outer side surfaces of the platforms 25, an accommodating groove 42 is formed in the lower portion of one side of the fixing block 4, and the adjusting blocks 26 are arranged in the accommodating groove 42 after the sprayer mounting frame 2 is mounted on the bottom plate 1.

In this embodiment, the arrangement of the accommodating groove 42 and the adjusting block 26 can shorten the distance between the adjacent nozzles 3 to the maximum extent, thereby saving more space.

Furthermore, a nozzle mounting hole 221 is formed in the nozzle mounting frame 22, bosses III227 are respectively arranged at the front end and the rear end of the nozzle mounting hole 221 on the bottom surface of the nozzle mounting frame 22, and the nozzle 23 is mounted in the nozzle mounting hole 221 and the lower surface of the nozzle does not exceed the lower surface of the boss III 227.

Further, referring to fig. 16, bosses I222 are provided at front and rear ends of the nozzle mounting frame 22 in the nozzle mounting hole 21, a boss II223 is provided at a side of the boss I222 away from the nozzle mounting frame 22, and the positioning post 224 is provided on the boss II 223. The front end and the rear end of the spray head 23 are provided with platforms, a positioning block I231 and a positioning block II232 are respectively arranged on the platforms, the spray head 23 is arranged on the spray head mounting frame 22, the rear platform is lapped on the boss I222, and the positioning block I231 and the positioning block II232 are lapped on the boss II223 and are respectively abutted to the positioning column 224.

Further, referring to fig. 12, a groove 211 is formed in the bottom plate 21, a sinking groove 212 is formed in the groove 211, a through hole 213 is formed in the sinking groove 212, the boss III227 is disposed in the through hole 213 after the nozzle mounting frame 22 is mounted in the sinking groove 212, and the platform 225 is disposed on the groove 211.

Example 5:

in addition to embodiment 4, referring to fig. 13 and 14, the height adjustment unit includes a ball spring plunger I2511 and ball adjustment screws I2512, the ball spring plungers I2511 are mounted on fixing blocks 24 located at the front and rear ends of the head mounting frame 22, ball heads at the lower ends of the ball spring plungers I2511 abut against the upper surfaces of the front and rear ends of the head mounting frame 22, the number of the ball adjustment screws I2512 is three and mounted on the bottom plate 21, a ball head of one of the ball adjustment screws I2512 abuts against the lower surface of the front end or the rear end of the head mounting frame 22, and ball heads of the other two ball adjustment screws I2512 abut against the left and right sides of the lower surface of the rear end or the front end of the head mounting frame 22.

In this embodiment, the ball head adjusting screw I2512 is mounted on the bottom plate 21, a ball head portion at an upper end of the ball head adjusting screw I2512 penetrates through an upper surface of the bottom plate 21 and abuts against a lower surface of the nozzle mounting frame 22, the ball head spring plunger I2511 is mounted on the fixed block 24, a ball head portion at a lower end abuts against the upper surface of the nozzle mounting frame 22, the ball head adjusting screw I2512 is screwed from below the bottom plate 21 to adjust the height of the upper end of the ball head adjusting screw I2512 extending out of the upper surface of the bottom plate 21, so as to adjust the height position of the nozzle mounting frame 22, and the ball head spring plunger I2511 presses downward under the elastic force of the spring and allows the height of the nozzle mounting frame 22 to change; the number of the ball head adjusting screws I2512 is three, a three-point positioning mode is adopted, over-positioning caused by surface contact is avoided, the height and the inclination angle of the sprayer mounting frame 22 can be conveniently adjusted, the length of the ball head spring plunger I2511 extending out of the fixing block 24 is adjustable, and the pressure of the ball head spring plunger I2511 on the sprayer mounting frame 22 is adjustable.

Example 6:

in embodiment 4 or 5, referring to fig. 13 and 15, the front-rear position adjusting unit includes a ball head adjusting screw II2521 and a ball head spring plunger II2522 that are respectively mounted on the fixing blocks 24 located at the front and rear ends of the head mounting frame 22, and the ball head portions of the ball head adjusting screw II2521 and the ball head spring plunger II2522 respectively abut against the front and rear side surfaces of the head mounting frame 22.

In this embodiment, the ball head portion of the ball head adjusting screw II2521 is mounted on the side of the fixing block 24 at one end of the nozzle mounting frame 22, the ball head portion of the ball head adjusting screw II2521 penetrates through the fixing block 24 and abuts on the side of one end of the nozzle mounting frame 22, the front and rear positions of the nozzle mounting frame 22 are adjusted by adjusting the length of the ball head adjusting screw II2521 extending out of the fixing block 24, the ball head portion of the ball head spring plunger II2522 is mounted on the fixing block 24 at the other end of the nozzle mounting frame 22 and abuts on the side of the other end of the nozzle mounting frame 22, the ball head spring plunger II2522 applies pressure to the nozzle mounting frame 22 under the elastic force of a spring and allows the front and rear positions of the nozzle mounting frame 22 to change, the length of the ball head spring plunger II2522 extending out of the fixing block 24 is adjustable, that is, the pressure of the ball head spring plunger II2522 on the nozzle mounting frame 22 is adjustable.

Example 7:

in any of embodiments 4 to 6, referring to fig. 13 and 15, the yaw adjustment unit includes a ball adjustment screw III2531 and a ball spring plunger III2532, the ball adjustment screw III2531 is mounted on the fixed block 24, and a ball portion of the ball adjustment screw III2531 abuts against a left side surface or a right side surface of front and rear ends of the head mounting frame 22; the ball spring plunger III2532 is mounted on the fixed block 24 and located on the opposite side of the ball adjusting screw III2531, and the ball head portion of the ball spring plunger III2532 abuts against the right side surface or the left side surface of the front end and the rear end of the nozzle mounting frame 22 respectively.

In this embodiment, ball head adjusting screws III2531 and ball head spring plungers III2532 are respectively mounted on the left side and the right side of the fixing block 24, the fixing block 24 is located on the front side and the rear side of the nozzle mounting frame 22, that is, the opposite sides of the front end and the rear end of the nozzle mounting frame 22 are respectively abutted with the ball head adjusting screws III2531 and the ball head spring plungers III2532, as shown in fig. 13, the ball head adjusting screws III2531 are respectively mounted on the rear sides of the front end and the rear end of the nozzle mounting frame 22, and the left-right position and the deflection angle of the nozzle mounting frame 22 are adjusted by adjusting the length of the ball head portions of the ball head adjusting screws III2531 extending out of the fixing block 24; the front sides of the front end and the rear end of the nozzle mounting frame 22 are respectively provided with a ball spring plunger III2532, the ball spring plungers III2532 press the nozzle mounting frame 22 under the elastic force of the springs and allow the left position and the right position of the nozzle mounting frame 22 to change, the length of the ball spring plungers III2532 extending out of the fixing block 24 can be adjusted, namely the pressure of the ball spring plungers III2532 on the nozzle mounting frame 22 can be adjusted.

It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in other sequences than those illustrated or otherwise described herein.

Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements explicitly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be oriented in other different ways, such as by rotating it 90 degrees or at other orientations, and the spatially relative descriptors used herein interpreted accordingly.

In the foregoing detailed description, reference is made to the accompanying drawings, which form a part hereof. In the drawings, like numerals typically identify like components, unless context dictates otherwise. The illustrated embodiments described in the detailed description, drawings, and claims are not meant to be limiting. Other embodiments may be utilized, and other changes may be made, without departing from the spirit or scope of the subject matter presented here.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An inkjet printing apparatus, characterized in that: the ink jet printing device comprises a printing module, a base (7) and a translation device, wherein the printing module is installed above the base (7), the printing module comprises a main frame (1) and a lifting driving device, a plurality of spray head position adjusting devices (2) are installed at the bottom of the main frame (1), an ink curing device (3) is installed on the lateral side of each spray head position adjusting device (2), each spray head position adjusting device (2) comprises a bottom plate (21), a spray head installation frame (22), a fixed block (24) and an adjusting unit, a spray head (23) is installed in each spray head installation frame (22), each spray head installation frame (22) is installed on the corresponding bottom plate (21), the fixed blocks (24) are located at the left end and the right end of each spray head installation frame (22) and are installed on the corresponding bottom plate (21), the adjusting units are arranged on the fixed blocks (24) and are abutted to the spray head installation frames (22), and the adjusting units are used for adjusting the height, the inclination angle, the front position and the rear position, the left position and the right position and the swing angle of each spray head installation frame (22); the lifting driving device is arranged on the main frame (1) and is used for driving the spray head position adjusting device (2) to move up and down; the translation device is respectively connected with the printing module and the base (7) and is used for adjusting the front and back positions of the printing module.

2. Inkjet printing apparatus according to claim 1 wherein: an ink supply device (4) is arranged on the main frame (1) above the spray head position adjusting device (2), and the ink supply device (4) comprises a degassing circulating device and an anti-suck-back device; the degassing circulating device comprises a secondary ink box (41), a degas filter (44) and an ink pump (45), wherein the degas filter and the ink pump are respectively communicated with the secondary ink box (41), and the suck-back prevention device comprises a buffer ink box (42) and an electromagnetic valve (43) which are connected with each other; the ink outlet of the secondary ink box (41) is communicated with the spray head (23) and is used for supplying ink to the spray head (23), and the buffer ink box (42) is communicated with the secondary ink box (41).

3. Inkjet printing apparatus according to claim 1 wherein: the ink jet printing head is characterized in that the main frame (1) comprises outer side plates (11) which are respectively located on the left side and the right side, a back plate (12) is transversely arranged between the outer side plates (11), a lifting plate (13) is arranged on the front side of the back plate (12), a nozzle position adjusting device (2) and an ink curing device (3) are installed on the lifting plate (13), a lifting driving device is arranged between the back plate (12) and the lifting plate (13), and the lifting driving device drives the lifting plate (13) to move up and down so that the nozzle position adjusting device moves up and down.

4. An inkjet printing apparatus according to claim 3 wherein: the left and right sides of the front surface of lifter plate (13) vertically is equipped with interior plate (14) respectively, interior plate (14) are located the inboard of outer panel (11), the front side of interior plate (14) is equipped with preceding curb plate (15), lifter plate (13), interior plate (14) and preceding curb plate (15) enclose each other and close and form the installation frame, shower nozzle position control device (2) with ink solidification equipment (3) install in the installation frame.

5. Inkjet printing apparatus according to claim 1 wherein: install a plurality of material rollers on base (7), the material roller is used for bearing and carrying print media, the material roller is including first material roller (71), second material roller (72), third material roller (73) and fourth material roller (74) that are located print module below, the bottom surface of shower nozzle (23) on the print module is parallel to each other with the upper surface of the print media of its below, the height of first material roller (71) is less than the height of second material roller (72), the height of fourth material roller (74) is less than the height of third material roller (73).

6. Inkjet printing apparatus according to claim 1 wherein: the adjusting unit comprises a height adjusting unit, a front position adjusting unit, a rear position adjusting unit and a deflection adjusting unit, wherein the height adjusting unit is used for adjusting the height and the inclination angle of the sprayer mounting frame (22), the front position adjusting unit and the rear position adjusting unit are used for adjusting the front position and the rear position of the sprayer mounting frame (22), and the deflection adjusting unit is used for adjusting the left position, the right position and the deflection angle of the sprayer mounting frame (22).

7. Inkjet printing apparatus according to claim 6 wherein: the height adjusting unit comprises ball spring plungers I (2511) and ball adjusting screws I (2512), the ball spring plungers I (2511) are mounted on fixing blocks (24) located at the front end and the rear end of the sprayer mounting frame (22), the ball heads at the lower ends of the ball spring plungers I (2511) abut against the upper surfaces of the front end and the rear end of the sprayer mounting frame (22), the number of the ball adjusting screws I (2512) is three, the ball adjusting screws I (2512) are mounted on the bottom plate (21), the ball head of one ball adjusting screw I (2512) abuts against the lower surface of the front end portion or the rear end portion of the sprayer mounting frame (22), and the ball heads of the other two ball adjusting screws I (2512) abut against the left side and the right side of the lower surface of the rear end portion or the front end portion of the sprayer mounting frame (22) respectively.

8. Inkjet printing apparatus according to claim 6 wherein: the front and rear position adjusting unit comprises a ball head adjusting screw II (2521) and a ball head spring plunger II (2522) which are respectively arranged on fixing blocks (24) positioned at the front end and the rear end of the spray head mounting frame (22), and the ball head parts of the ball head adjusting screw II (2521) and the ball head spring plunger II (2522) are respectively abutted against the front side surface and the rear side surface of the spray head mounting frame (22).

9. Inkjet printing apparatus according to claim 6 wherein: the deflection adjusting unit comprises a ball head adjusting screw III (2531) and a ball head spring plunger III (2532), the ball head adjusting screw III (2531) is installed on the fixing block (24), and the ball head part of the ball head adjusting screw III (2531) is abutted to the left side surface or the right side surface of the front end and the rear end of the sprayer installing frame (22) respectively; the ball head spring plunger III (2532) is mounted on the fixing block (24) and located on the opposite side of the ball head adjusting screw III (2531), and the ball head portion of the ball head spring plunger III (2532) abuts against the right side face or the left side face of the front end and the rear end of the spray head mounting frame (22) respectively.

10. Inkjet printing apparatus according to claim 6 wherein: the quantity of shower nozzle installing frame (22) is two at least on bottom plate (21), shower nozzle installing frame (22) vertically set up in on bottom plate (21) and along transversely arranging side by side, shower nozzle installing frame (22) are isosceles trapezoid, and adjacent two the front and back both ends of shower nozzle installing frame (22) are invertd each other and are arranged.

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