CN213920331U

CN213920331U - Continuous ink-jet printer with improved spray head arrangement structure

Info

Publication number: CN213920331U
Application number: CN202021712932.6U
Authority: CN
Inventors: 李立涛
Original assignee: Guangdong Lichai Digital Technology Co Ltd
Current assignee: Guangdong Lichai Digital Technology Co Ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-08-10
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a continuous ink-jet printer with improved spray nozzle arrangement structure, which comprises a printing platform for bearing printing stock and a continuous ink-jet device arranged above the printing platform, wherein the bottom of the continuous ink-jet device is provided with a spray nozzle mounting bottom plate, at least two rows of spray nozzle groups are fixedly arranged on the spray nozzle mounting bottom plate along the X-axis direction, and at least one spray nozzle is fixedly arranged on each row of spray nozzle groups along the Y-axis direction; the nozzles in two adjacent rows of nozzle groups are staggered along the Y-axis direction, the ink-jet areas of the nozzles are spliced into an effective printing area below the nozzle mounting base plate along the Y-axis direction, and the projections of two ink-jet areas which are adjacently arranged along the Y-axis direction in the X-axis direction have overlapping parts or the edges of the opposite sides of the two ink-jet areas which are adjacently arranged along the Y-axis direction are aligned along the X-axis direction. The spray head does not need to move, the printing stock is continuously fed, and the spray head continuously sprays ink, so that the printing efficiency is improved. The probability of rubbing the spray head is reduced, the service life of the spray head is long, and the use cost of customers is reduced.

Description

Continuous ink-jet printer with improved spray head arrangement structure

Technical Field

The utility model belongs to the technical field of the ink jet printing equipment and specifically relates to an improve continuous ink jet printer of shower nozzle range structure and relate to.

Background

With the technological progress of large format inkjet printers, large format inkjet printers are gradually applied to industrial production, including advertisement painting, printing on clothing and shoes, wall paper painting, printing on artworks, and the like. In order to improve the production efficiency, the large-format printer with multiple nozzles is popularized and applied, and occupies a leading position in the market. The existing large-format ink-jet printer with multiple nozzles needs one-step printing and one-step printing, has low printing efficiency, and can finish the printing of patterns only by ink-jet printing for a plurality of times for one-step patterns, so that the printing precision is low, the printing efficiency is low, and the nozzles jet ink on a printing platform for a plurality of times back and forth, thereby causing easy paper arching; the probability of rubbing the spray head is increased in multiples, the rejection rate of the spray head is increased, and the use cost of a customer is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an improve continuous inkjet printer of shower nozzle range structure, simple structure, it is with low costs, print efficiency and precision height to prior art exist.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a continuous ink-jet printer with an improved nozzle arrangement structure comprises a printing platform for bearing a printing stock and a continuous ink-jet device arranged above the printing platform, wherein the advancing direction of the printing stock is set to be an X-axis direction, a Y-axis direction in a horizontal plane is perpendicular to the X-axis direction, a nozzle mounting base plate is arranged at the bottom of the continuous ink-jet device, at least two rows of nozzle groups are fixedly arranged on the nozzle mounting base plate along the X-axis direction, and at least one nozzle is fixedly arranged on each row of nozzle groups along the Y-axis direction;

the bottom surface of each spray head is provided with an ink jet area, and each ink jet area is provided with at least one nozzle; the nozzles in two adjacent rows of nozzle groups are staggered along the Y-axis direction, the ink-jet areas of the nozzles are spliced into an effective printing area below the nozzle mounting base plate along the Y-axis direction, and the projections of two ink-jet areas which are adjacently arranged along the Y-axis direction in the X-axis direction have overlapping parts or the edges of the opposite sides of the two ink-jet areas which are adjacently arranged along the Y-axis direction are aligned along the X-axis direction.

In a further technical scheme, the nozzles of two adjacent rows of the nozzle groups are arranged at intervals or aligned along the Y-axis direction, and the width of the overlapping part is equal to or less than the width of the ink jetting area of a single nozzle in the Y-axis direction.

In a further aspect, the width of the overlap is less than 1/2 of the width of the ink ejection area of a single head in the Y-axis direction.

In a further technical scheme, the number of each row of spray heads is equal or unequal, 2-6 rows of spray head groups are arranged on the spray head mounting bottom plate along the X-axis direction, and 1-20 spray heads are arranged on each row of spray head groups.

In a further technical scheme, the printing stock is provided with a pattern printing area, the effective printing area covers the pattern printing area along the Y-axis direction, and the width of the effective printing area is equal to that of the pattern printing area.

In a further technical scheme, the continuous ink jet printer comprises a printer body, the printer body is provided with a printing platform, the printer body is provided with a continuous ink jet device, the positions of the spray heads relative to the printing stock and/or the printing platform along the Y-axis direction are kept unchanged, the printer body is provided with a conveying mechanism for continuously conveying the printing stock to advance along the X-axis direction, and a channel for the printing stock to pass through along the X-axis direction is arranged between the bottom surface of the spray head along the Z-axis direction and the printing platform.

In a further technical scheme, a nozzle mounting hole is formed in the position, corresponding to the nozzle, of the nozzle mounting bottom plate, and the nozzle penetrates through the nozzle mounting hole and extends out of the bottom surface of the nozzle mounting bottom plate; the edge periphery of nozzle mounting hole is provided with the shower nozzle mounting hole, and the both sides of nozzle mounting hole are provided with the shower nozzle locating hole.

In a further technical scheme, the conveying mechanism comprises a printing stock unwinding roller, a printing stock winding roller and an adsorption device for adsorbing the printing stock, and the printing stock winding roller is arranged on the rear side of the continuous ink jet device along the X-axis direction; along the X-axis direction, a printing stock unwinding roller is arranged on the front side of the printing platform; adsorption equipment installs in print platform's bottom surface, and print platform has seted up a plurality of through-holes to the realization adsorbs the stock in print platform's top surface.

In a further technical scheme, the continuous ink jet printer is provided with a control device, the control device is provided with a driving device and a nozzle driving device, the control device is electrically connected with the driving device and the nozzle driving device, the driving device is connected with a printing stock winding roller in a driving mode, a sliding rail vertically installed along a Z axis is arranged on the top surface of the rear side of the printing platform, the continuous ink jet device is installed on the sliding rail in a sliding mode, and the nozzle driving device is connected with the continuous ink jet device in a driving mode so as to drive the continuous ink jet device to ascend or descend.

In a further technical scheme, an ink stack which horizontally moves along the X-axis direction of the printing platform is arranged on the top surface of the printing platform.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the shower nozzle need not to remove, and the stock feeds in succession, and the shower nozzle is continuous to be inkjet, need not further step-by-step printing, and it is extravagant to practice thrift the raw materials, reduces printing time, improves and prints efficiency. The sprayer does not need to move when working, the scraping and rubbing probability of the sprayer is reduced, the service life of the sprayer is long, and the use cost of customers is reduced.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the printing state of the present invention;

FIG. 3 is a schematic structural view of the sprinkler head of the present invention;

FIG. 4 is a schematic structural view of one of the nozzle mounting base plates for mounting nozzles of the present invention with three rows and eight heads;

FIG. 5 is a schematic structural view of one of the two rows of nozzle mounting plates for mounting nozzles according to the present invention;

FIG. 6 is a schematic structural view of two rows of nozzle mounting plates for mounting nozzles according to the present invention;

FIG. 7 is a schematic structural view of one of the two rows of three-head nozzle mounting base plates for mounting nozzles according to the present invention;

FIG. 8 is a schematic structural view of one of the two rows of three-head nozzle mounting base plates for mounting nozzles according to the present invention;

FIG. 9 is a schematic structural view of one of the three rows and three heads of the nozzle mounting base plate for mounting nozzles according to the present invention;

FIG. 10 is a schematic structural view of one of the three rows and three heads of the nozzle mounting base plate of the present invention;

FIG. 11 is a schematic structural view of one of the three rows and three heads of the nozzle mounting base plate of the present invention;

fig. 12 is a schematic structural view of one of the four rows and four heads of the nozzle mounting base plate for mounting the nozzles according to the present invention;

fig. 13 is a schematic structural view of one of the four rows and four heads of the nozzle mounting base plate for mounting the nozzles according to the present invention;

fig. 14 is a schematic structural view of one of the four rows and four heads of the nozzle mounting base plate for mounting the nozzles according to the present invention;

fig. 15 is a schematic structural view of a two-row four-head nozzle mounting base plate for mounting nozzles according to the present invention;

fig. 16 is a schematic structural view of one of the nozzle mounting base plates for mounting nozzles of the present invention, which has three rows and four heads;

fig. 17 is a schematic structural view of one of the nozzle mounting base plates for mounting nozzles of the present invention, which has three rows and four heads;

fig. 18 is a schematic structural view of a nozzle mounting base plate for mounting five rows and five heads according to the present invention;

FIG. 19 is a schematic structural view of two rows of five-head nozzle mounting plates of the present invention;

FIG. 20 is a schematic structural view of a bottom plate for mounting nozzles of the present invention, which has four rows and five heads;

fig. 21 is a schematic structural view of one of the nozzle mounting base plates for mounting the nozzles of the present invention, which has three rows and six heads;

fig. 22 is a schematic structural view of one of the nozzle mounting base plates for mounting the nozzles of the present invention, which has three rows and six heads;

fig. 23 is a schematic structural view of one of the nozzle mounting base plates for mounting nozzles of the present invention, which has three rows and six heads;

FIG. 24 is a schematic structural view of one of the nozzle mounting plates for mounting nozzles of the present invention with three rows and six heads;

FIG. 25 is a schematic structural view of a two-row six-head nozzle mounting base plate of the present invention;

fig. 26 is a schematic structural view of a nozzle mounting base plate for mounting nozzles of the present invention, which has three rows and seven heads;

fig. 27 is a schematic structural view of a nozzle mounting base plate for mounting nozzles, according to the present invention, with four rows and seven heads;

fig. 28 is a schematic structural view of a two-row eight-head nozzle mounting base plate for mounting nozzles according to the present invention;

fig. 29 is a schematic structural view of one of the nozzle mounting base plates for mounting the nozzles according to the present invention;

FIG. 30 is a schematic structural view of one of the nozzle mounting plates for four rows and eight heads of the present invention;

fig. 31 is a schematic structural view of one of the nozzle mounting base plates for mounting the nozzles according to the present invention, which has four rows and eight heads;

fig. 32 is a schematic structural view of a nozzle mounting base plate for mounting nozzles of the present invention, which has five rows and eight heads;

fig. 33 is a schematic structural view of a nozzle mounting base plate for mounting nozzles in three rows and twelve heads according to the present invention;

fig. 34 is a schematic structural view of a nozzle mounting base plate for mounting nozzles, according to the present invention, with twelve nozzles arranged in four rows;

fig. 35 is a schematic structural view of a nozzle mounting base plate for mounting four rows and sixteen nozzles according to the present invention;

fig. 36 is a schematic structural view of two rows of sixteen nozzle mounting base plates for mounting nozzles according to the present invention;

fig. 37 is a schematic structural view of a nozzle mounting base plate for mounting nozzles in three rows and twenty-four heads according to the present invention;

fig. 38 is a schematic structural view of a nozzle mounting base plate for mounting nozzles in four rows of thirty-two heads according to the present invention.

In the figure:

1, a printer body, 11 printing stock unwinding rollers and 12 printing stock winding rollers;

2, printing platform, 21 through hole;

3 continuous ink jet device, 31 spray head driving device, 32 slide rail;

4 spray heads, 41 spray nozzles;

5, a spray head mounting bottom plate, a 51 spray nozzle mounting hole, a 52 spray head mounting hole and a 53 spray head positioning hole;

6 ink stacks.

Detailed Description

The following are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby.

A continuous ink-jet printer with an improved nozzle arrangement structure is disclosed, as shown in fig. 1 to 3, and comprises a printing platform 2 for bearing a printing stock and a continuous ink-jet device 3 arranged above the printing platform 2, wherein the advancing direction of the printing stock is set to be an X-axis direction, a Y-axis direction is perpendicular to the X-axis direction in a horizontal plane, a nozzle mounting base plate 5 is arranged at the bottom of the continuous ink-jet device 3, at least two rows of nozzle groups are fixedly arranged on the nozzle mounting base plate 5 along the X-axis direction, and at least one nozzle 4 is fixedly arranged on each row of nozzle groups along the Y-axis direction; the bottom surface of each spray head 4 is provided with an ink jet area, and each ink jet area is provided with at least one nozzle 41; the nozzles 4 in two adjacent rows of nozzle groups are staggered along the Y-axis direction, the ink-jet areas of the nozzles 4 are spliced into an effective printing area below the nozzle mounting base plate 5 along the Y-axis direction, and the projections of two adjacent ink-jet areas along the Y-axis direction in the X-axis direction have overlapping parts or the edges of the opposite sides of the two adjacent ink-jet areas along the Y-axis direction are aligned along the X-axis direction.

The existing ink-jet printer needs further step-by-step printing of the printing stock, and the spray head 4 carries out ink-jet while moving transversely on each step-by-step printing stock; when most of ink-jet printers print a step pattern, a printing blind area is formed because a gap exists between ink-jet areas on the opposite facing sides of two adjacent rows of nozzles 4, and the nozzles 4 are required to be matched with printing stock to feed so as to spray and paint the printing blind area again; the printing blind area is eliminated in a small part by adjusting the arrangement of the spray heads 4, but the spray heads 4 still need to move transversely for spray painting, so that the printing is discontinuous, the printing efficiency is low, and the scraping risk is high due to the back-and-forth movement of the spray heads 4. The spray head 4 of the utility model is fixed above the printing platform 2 during spray painting, and does not need to move; the projections of two ink ejection areas adjacently arranged in the Y-axis direction in the X-axis direction have an overlapping portion or the edges of opposite sides of two ink ejection areas adjacently arranged in the Y-axis direction are aligned in the X-axis direction. The printing blind area is eliminated, the arrangement mode of the spray heads 4 is adjusted according to the patterns to be printed, and the effective printing area covers the pattern printing area of the printing stock. The printing stock is fed continuously, the spray head 4 does not need to move, the spray head 4 continuously sprays ink, the printing efficiency is high, the scraping and rubbing probability of the spray head 4 is reduced, the service life of the spray head 4 is prolonged, the yield is improved, and the production cost of the ink-jet printer is reduced.

The nozzle mounting base plate 5 is provided with 2-6 rows of nozzle groups along the X-axis direction, each row of nozzle groups is provided with 1-20 nozzles 4, and the arrangement of the nozzles 4 is specifically shown in fig. 4-38.

Specifically, the arrangement of the heads 4 is set to an arrangement of three rows and eight heads, as shown in fig. 4, the heads 4 are respectively arranged in three rows, the first row has three heads 4, the second row has two heads 4, the third row has three heads 4, the three heads 4 in the first row and the two heads 4 in the second row have a gap in the ink ejection area in the Y-axis direction, and the three heads 4 in the third row are located at the gap in the ink ejection area in the Y-axis direction of the heads 4 in the first row and the second row. As shown in fig. 5 and 8, the edges of the opposite sides of two ink ejection areas where the ejection heads 4 of the first row and the ejection heads 4 of the second row are adjacently disposed in the Y-axis direction are aligned in the X-axis direction, including but not limited to the above list. The spray head 4 only needs to be arranged according to the following requirements: the nozzles 4 in two adjacent rows of nozzle groups are staggered along the Y-axis direction, the projections of two ink-jet areas which are adjacently arranged along the Y-axis direction in the X-axis direction have overlapping parts or the edges of the opposite sides of the two ink-jet areas which are adjacently arranged along the Y-axis direction are aligned along the X-axis direction, an effective printing area without a printing blind area can be formed, a printing stock passes through the lower part of the nozzles 4, and the nozzles 4 perform continuous spray painting, namely continuous ink-jet printing.

Preferably, the number of the spray heads 4 in each row is equal, 2-6 rows of spray head groups are arranged on the spray head mounting base plate 5 along the X-axis direction, and 1-20 spray heads 4 are arranged on each row of spray head groups. The number of heads 4 in each row is the same, and the heads 4 are arranged in three rows and six heads, as shown in fig. 22, the heads 4 in the first row and the heads 4 in the second row have overlapping ink ejection areas in the X-axis direction, and the heads 4 in the second row and the heads 4 in the third row have overlapping ink ejection areas in the X-axis direction.

Preferably, the number of the nozzles 4 in each row is not equal, 2-6 rows of nozzle groups are arranged on the nozzle mounting base plate 5 along the X-axis direction, and 1-20 nozzles 4 are arranged in each row of nozzle groups. The number of the heads 4 in each row is different, the heads 4 are arranged in three rows and six heads, as shown in fig. 21, the heads 4 in the second row and the heads 4 in the third row have overlapping ink ejection areas in the X-axis direction, and any one of the heads in the first row and the heads in the second row 4 have overlapping ink ejection areas in the X-axis direction.

The above arrangement may be applied to the arrangement of the heads 4 with a larger number of rows, and the arrangement of the heads 4 only needs to be in accordance with the condition that the projections of the two ink ejection areas adjacently arranged along the Y-axis direction in the X-axis direction have an overlapping portion or the edges of the opposite sides of the two ink ejection areas adjacently arranged along the Y-axis direction are aligned along the X-axis direction. By analogy, the specific number of the nozzles 4 can be set according to actual production needs, and the arrangement mode of the nozzles 4 can be set according to actual production conditions and specific spray-painting patterns so as to achieve better printing effect.

Preferably, the heads 4 of two adjacent rows of the head groups are arranged at intervals or aligned in the Y-axis direction, and the width of the overlapping portion is equal to or less than the width of the ink ejection area of a single head 4 in the Y-axis direction. Specifically, as shown in fig. 6, the heads 4 are respectively provided in two rows, one head 4 is provided in each row, and the width of the overlapping portion of the heads of the first row and the second row is equal to the width of the ink ejection area of a single head 4 in the Y-axis direction.

Preferably, the width of the overlapping portion is smaller than 1/2 of the width of the ink ejection area of the single head 4 in the Y-axis direction. As shown in fig. 7, the heads 4 are respectively provided in two rows, the first row has two heads 4, the second row has one head 4, and the width of the two overlapping portions of the heads of the first row and the second row is smaller than 1/2 of the width of the ink ejection area of the single head 4 in the Y-axis direction.

Preferably, the substrate has a pattern printing area, the effective printing area covers the pattern printing area along the Y-axis direction, and the width of the effective printing area is equal to the width of the pattern printing area. The effective printing area covers the width of the printing stock, so that any position of the printing stock can be printed, and any pattern can be printed.

Specifically, continuous inkjet printer includes printer body 1, and printer body 1 is provided with print platform 2, and printer body 1 installs continuous inkjet device 3, and the position of each shower nozzle 4 relative stock and/or print platform 2 along Y axle direction all keeps unchangeable, and printer body 1 is provided with the conveying mechanism who is used for carrying the stock to advance along the X axle direction in succession, has the passageway that supplies the stock that advances along the X axle direction to pass between the bottom surface of Z axle direction shower nozzle 4 and print platform 2.

Specifically, a nozzle mounting hole 51 is formed in the position of the nozzle 4 corresponding to the nozzle mounting base plate 5, and the nozzle 41 passes through the nozzle mounting hole 51 and extends out of the bottom surface of the nozzle mounting base plate 5; the periphery of the edge of the nozzle mounting hole 51 is provided with a nozzle mounting hole 52, and two sides of the nozzle mounting hole 51 are provided with nozzle positioning holes 53; the nozzle penetrates through the nozzle mounting base plate 5 and protrudes out of the bottom surface of the nozzle mounting base plate 5, when the nozzle 4 is used for spray painting, the lower part of the nozzle 41 is not shielded, a better spray painting effect can be achieved, and the ink scraping plate is convenient to scrape ink on the nozzle 4.

Specifically, the conveying mechanism comprises a printing stock unwinding roller 11, a printing stock winding roller 12 and an adsorption device for adsorbing the printing stock, and the printing stock winding roller 12 is arranged on the rear side of the continuous ink jet device 3 along the X-axis direction; along the X-axis direction, a printing stock unwinding roller 11 is arranged on the front side of the printing platform 2; adsorption equipment installs in print platform 2's bottom surface, and print platform 2 has seted up a plurality of through-holes 21 to the realization adsorbs the stock in print platform 2's top surface. The printing stock is mostly a roll package, the surface is uneven when printing, even has an arch, and the printing stock is not completely attached to a printing platform; before the stock arrived shower nozzle 4 below, adsorption equipment sees through print platform's through-hole 21, adsorbs the stock at the print platform top surface, makes stock surfacing, prevents that the stock from along Y axle direction displacement, reduces the defective rate, has improved printing efficiency.

Specifically, the continuous ink jet printer is provided with a control device, the control device is provided with a driving device and a nozzle driving device 31, the control device is electrically connected with the driving device and the nozzle driving device 31, the driving device is connected with the printing stock winding roller 12 in a driving mode, the top surface of the rear side of the printing platform 2 is provided with a sliding rail 32 vertically installed along the Z axis, the continuous ink jet device 3 is installed on the sliding rail 32 in a sliding mode, and the nozzle driving device 31 is connected with the continuous ink jet device 3 in a driving mode so that the continuous ink jet device 3 can be driven to ascend or descend. The control device is internally provided with a set software control program, and the printer executes a printing task according to the software control program. The printing stock that will wait to print is placed on printing stock unwinding roll 11, waits that printing stock initial printing end pulls out from printing stock unwinding roll 11, passes the passageway between the bottom surface of shower nozzle 4 and print platform 2, twines on printing stock unwinding roll 12, and drive arrangement drives printing stock unwinding roll 12 according to the software control program that sets up, drives the printing stock and removes along the X axle direction of print platform 2, and shower nozzle 4 carries out continuous inkjet simultaneously. Preferably, the nozzle driving device 31 drives the nozzle 4 to ascend or descend along the Z-axis direction of the printing platform 2 on the slide rail, and when the nozzle 4 needs to be replaced or maintained, the nozzle 4 is driven to ascend, so that the maintenance and the replacement are convenient.

Specifically, as shown in fig. 2, the top surface of the printing platform 2 is provided with an ink stack 6 that moves horizontally in the X-axis direction of the printing platform 2. When the nozzle 4 is maintained, the nozzle 4 is lifted, the nozzle 4 is lowered after the ink stack 6 moves to the position below the nozzle 4, and the nozzle 41 is immersed in the ink stack 6, so that the nozzle 4 is prevented from being blocked and the nozzle 4 is cleaned; when the spray head 4 works, the spray head 4 rises, and after the ink stack 6 moves out of the position below the spray head 4, the spray head 4 descends to the printing height for spray painting.

The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims

1. The utility model provides an improve continuous inkjet printer of shower nozzle range structure, includes printing platform (2) and the continuous inkjet device (3) of setting in the top of printing platform (2) that are used for bearing stock, and the advancing direction of stock sets for X axle direction, and Y axle direction perpendicular to X axle direction in the horizontal plane, the bottom of continuous inkjet device (3) is provided with shower nozzle mounting plate (5), its characterized in that: at least two rows of nozzle groups are fixedly arranged on the nozzle mounting base plate (5) along the X-axis direction, and at least one nozzle (4) is fixedly arranged on each row of nozzle groups along the Y-axis direction;

the bottom surface of each spray head (4) is provided with an ink jet area, and each ink jet area is provided with at least one nozzle (41); the nozzles (4) in two adjacent rows of nozzle groups are staggered along the Y-axis direction, the ink-jet areas of the nozzles (4) are spliced into an effective printing area below the nozzle mounting base plate (5) along the Y-axis direction, and the projections of two ink-jet areas which are adjacently arranged along the Y-axis direction in the X-axis direction have overlapping parts or the edges of the opposite sides of the two ink-jet areas which are adjacently arranged along the Y-axis direction are aligned along the X-axis direction.

2. A continuous ink jet printer with improved head arrangement according to claim 1, wherein: the nozzles (4) of two adjacent rows of the nozzle groups are arranged at intervals or aligned along the Y-axis direction, and the width of the overlapping part is equal to or less than the width of the ink jet area of a single nozzle (4) in the Y-axis direction.

3. A continuous ink jet printer with improved head arrangement according to claim 1, wherein: the width of the overlapping portion is smaller than 1/2 of the width of the ink ejection area of a single head (4) in the Y-axis direction.

4. A continuous ink jet printer with improved head arrangement according to claim 1, wherein: the number of the spray heads (4) in each row is equal or unequal, 2-6 rows of the spray head groups are arranged on the spray head mounting bottom plate (5) along the X-axis direction, and 1-20 spray heads (4) are arranged on each row of the spray head groups.

5. A continuous ink jet printer with improved head arrangement according to claim 1, wherein: the printing stock has a pattern printing area, the effective printing area covers the pattern printing area along the Y-axis direction, and the width of the effective printing area is equal to that of the pattern printing area.

6. A continuous ink jet printer with improved head arrangement according to any one of claims 1 to 5, wherein: continuous ink jet printer is including printing organism (1), and printing organism (1) is provided with print platform (2), and it installs to print organism (1) continuous inkjet device (3), along Y axle direction each shower nozzle (4) are relative stock and/or print platform (2)'s position all keeps unchangeable, and printing organism (1) is provided with and is used for carrying the stock to advance along X axle direction continuously conveying mechanism, has the passageway that supplies the stock that advances along X axle direction between the bottom surface of Z axle direction shower nozzle (4) and print platform (2) to pass.

7. A continuous ink jet printer with improved head arrangement according to claim 6, wherein: a nozzle mounting hole (51) is formed in the position, corresponding to the nozzle (4), of the nozzle mounting bottom plate (5), and the nozzle (41) penetrates through the nozzle mounting hole (51) and extends out of the bottom surface of the nozzle mounting bottom plate (5); the periphery of the edge of the nozzle mounting hole (51) is provided with a nozzle mounting hole (52), and two sides of the nozzle mounting hole (51) are provided with nozzle positioning holes (53).

8. A continuous ink jet printer with improved head layout structure as claimed in claim 7, wherein: the conveying mechanism comprises a printing stock unwinding roller (11), a printing stock winding roller (12) and an adsorption device for adsorbing the printing stock, and the printing stock winding roller (12) is arranged on the rear side of the continuous ink jet device (3) along the X-axis direction; along the X-axis direction, a printing stock unwinding roller (11) is arranged on the front side of the printing platform (2); adsorption equipment installs in the bottom surface of print platform (2), and a plurality of through-holes (21) have been seted up in print platform (2) to the realization adsorbs the stock in the top surface of print platform (2).

9. A continuous ink jet printer with improved head arrangement according to claim 8, wherein: the continuous ink jet printer is provided with a control device, the control device is provided with a driving device and a nozzle driving device (31), the control device is electrically connected with the driving device and the nozzle driving device (31), the driving device is connected with the printing stock winding roller (12) in a driving mode, a sliding rail (32) vertically installed along a Z axis is arranged on the top surface of the rear side of the printing platform (2), the continuous ink jet device (3) is installed on the sliding rail (32) in a sliding mode, and the nozzle driving device (31) is connected with the continuous ink jet device (3) in a transmission mode so as to drive the continuous ink jet device (3) to ascend or descend.

10. A continuous ink jet printer with improved head arrangement according to claim 9, wherein: and the top surface of the printing platform (2) is provided with an ink stack (6) which horizontally moves along the X-axis direction of the printing platform (2).