TW201639636A - Synchronous single/double-sided digital printing machine and cloth winding method thereof - Google Patents

Abstract

The present invention relates to a printing machine and, more particularly, to a synchronous single/double-sided digital printing machine and a cloth winding method thereof. The printing machine comprises a rack, a cloth releasing roll, a cloth receiving roll, two small printing cars and two active rolls. The two small printing cars are respectively installed on two tracks of the rack for performing a reciprocating motion. Each of the two small printing cars has a spray nozzle. A printing platform is installed on the rack under each of the two small printing cars. One active roll is installed under each of the two small printing cars. The two active rolls are respectively installed on two independent drive devices on the rack for being driven and reversely rotated. In the present invention, one active roll is installed under each printing platform. The two active rolls are synchronously and reversely rotated by the independent drive devices, respectively, which guarantees the stepping precision of the double-sided printing. The present invention not only performs the double-sided precise printing, but also performs the single-sided printing for two pieces of printing cloth on one machine, so as to realize a multi-purpose machine.

Description

Synchronous single-sided digital inkjet printer and winding method thereof

The invention belongs to an inkjet device, in particular to a synchronous single-sided digital inkjet printer and a winding method thereof.

At present, inkjet printers that can perform double-sided inkjet printing have been used more and more in the industry. Because it can be printed on the front and back of the inkjet material, the color of the screen is bright and full when it is used to create the lightbox advertisement, which is very popular among industry personnel.

Most of the existing double-sided inkjet printers adopt the method of step-by-step printing, that is, firstly spray one side of the material, then unload the material, and then turn it over and install it on the inkjet printer and the other side of the inkjet material. This double-sided inkjet printer is labor intensive and time-consuming, and the accuracy of front and rear alignment is difficult to guarantee.

With the continuous development, there has also been a simultaneous two-sided printing machine. However, when these two-sided inkjet printers are printing on both sides, the precision of synchronous printing is relatively low, and the objection error is large, and the painted canvas pattern may appear ghost or the pattern is faint. In addition, when printing a single side, the nozzle group for backside printing is idle, which wastes 50% of the head resources.

In order to solve the low synchronization precision of the existing synchronous double-sided inkjet printer, single-sided inkjet printing The problem of slow speed and idle nozzle is to provide a synchronous single-sided digital inkjet printer and a winding method thereof.

The object of the present invention is achieved by the following technical solutions: the synchronous single-sided digital inkjet printer of the present invention comprises a frame, a cloth discharge roller, a cloth discharge roller, two sets of inkjet trolleys and a driving roller, and the two groups of inkjet trolleys Reciprocating motion on two sets of rail beams installed on the frame respectively, the two sets of inkjet trolleys are provided with nozzles, and the inkjet platforms installed on the racks are arranged under the two sets of inkjet trolleys; A driving roller is arranged below the inkjet trolley, and the two driving rollers are respectively driven to rotate in reverse by two independent driving devices mounted on the frame; the discharging roller and the collecting roller are respectively installed on both sides of the two driving rollers On the outer frame of the rack or the outer side of each of the driving rollers, a set of cloth discharging rollers and a collecting roller mounted on the frame are arranged, and the canvas printed on one side of the discharging roller is driven by a driving roller, and The cloth is collected by the same side of the collecting roller, and the canvas which is double-sidedly sprayed on the discharging roller is driven by the two driving rollers, and is taken up by the collecting roller on the other side.

Wherein: the two sets of inkjet carts are a back-jet printing car and a front-jet printing car, and the back inkjet car and the front inkjet car are respectively provided with a back printing platform and a front inkjet platform; the two driving rollers are the first active a roller and a second driving roller, the first and second driving rollers are symmetrically mounted on the frame, and the highest point of the first driving roller is located below the printing surface of the back printing platform or is equal to the back printing platform, the second active The highest point of the roller is located below the printing surface of the front printing platform or is equal to the front printing platform, and the first driving roller and the second driving roller are respectively located on the side of the rear printing platform and the front printing platform; The outer side of the roller and the second driving roller are provided with two cloth rollers mounted on the frame, and the two cloth rollers on each side are respectively a cloth discharging roller and a cloth discharging roller when printing on one side, and the cloth roller is disposed on each side. The canvas passes the initiative on the side The roller drives the cloth and is received by the cloth collecting roller on the same side; the outer side of the first driving roller is provided with a first discharging roller and a first collecting roller respectively mounted on the frame, and the first discharging roller The canvas is driven by the first driving roller and is received by the first collecting roller; the outer side of the second driving roller is provided with a second discharging roller and a second collecting roller respectively mounted on the frame. The canvas on the second laying roller is driven by the second driving roller and is received by the second collecting roller; the outer sides of the first driving roller and the second driving roller are respectively provided with two mounted on the frame a cloth roll, one of the two cloth rolls on one side of the double-side printing is a cloth discharge roller, and one of the two cloth rolls on the other side is a cloth discharge roller, and the canvas on the cloth discharge roller passes the first The first and second driving rollers drive the cloth and receive the cloth by the collecting roller; the front and back sides of the canvas are in contact with the first and second driving rollers in sequence, and the first and second driving rollers are respectively driven by two independent driving devices. Driving synchronous reverse rotation; the first and second driving rollers are respectively provided with a cloth roller mounted on the frame, and the canvas is driven by the first driving roller and the clamp It passes between the driving roller and the second roller or cloth roller; change machine frame is provided with a plurality of guide rollers to the canvas.

The synchronous single-sided double-digit digital inkjet printing machine is equivalent to two single-sided inkjet printers when single-sided inkjet printing, that is, the canvas between the discharging roller and the collecting roller outside the first driving roller is driven by the first driving roller. The inkjet is carried out when the carriage is printed on the back side; the canvas between the discharge roller and the take-up roller on the outside of the second drive roller is driven by the second driving roller, and is sprayed when the front side of the trolley is printed; The winding route of the canvas between the discharge roller and the take-up roller on the outer side of the first and second driving rollers is "S" shape, and the canvas sequentially bypasses the back printing platform, the first driving roller, the front printing platform and the second active Roller, driven by the first and second driving rollers; one of the canvas The surface is first sprayed by the nozzle on the back of the painted car, and then the surface is changed between the first and second active rollers, and the other side of the canvas is sprayed by the nozzle on the front of the painted car to realize the double-sided printing of the canvas.

The synchronous single-sided digital inkjet printer of the invention comprises a frame, a cloth discharge roller, a cloth discharge roller, two sets of inkjet trolleys and a driving roller, and the two sets of inkjet trolleys are respectively arranged on two sets of rail beams mounted on the frame. In the reciprocating motion, there are nozzles on both sets of inkjet carts. Underneath the two sets of inkjet carts, there are inkjet platforms installed on the racks; under the two jetting carts, there are active rollers, two The driving rollers are respectively driven to rotate in the same direction by two independent driving devices mounted on the frame; the discharging roller and the collecting roller are respectively mounted on the frames on both sides of the two driving rollers, and the feeding roller is double-speeded The face-painted canvas is driven by two of the driving rollers that rotate in the same direction, and is taken up by the collecting roller on the other side.

Wherein: the two sets of inkjet carts are a back-jet printing car and a front-jet printing car, and the back inkjet car and the front inkjet car are respectively provided with a back printing platform and a front inkjet platform; the two driving rollers are the first active a roller and a second driving roller, the first and second driving rollers are symmetrically mounted on the frame, and the highest point of the first driving roller is located below the printing surface of the back printing platform or is equal to the back printing platform, the second active The highest point of the roller is located below the printing surface of the front printing platform or is equal to the front printing platform. The first driving roller is located on one side of the printing direction of the rear printing platform, and the second driving roller is located at the direction of the front printing platform. The two sides of the first driving roller and the second driving roller are respectively provided with two cloth rollers mounted on the frame, and one of the two cloth rollers on one side of the double-speed single-side printing is a cloth discharging roller, and the other One of the two cloth rolls on the side is a cloth collecting roller, and the canvas on the cloth discharging roller drives the cloth through the first and second driving rollers, and is received by the cloth receiving roller; the opposite side of the canvas is sequentially The first and second drive rollers are in contact, The first The first and second driving rollers are respectively driven by two independent driving devices to rotate in the same direction.

When the synchronous single-sided double-digit digital inkjet printer is printing on the double-speed single-sided printing, the canvas on the discharge roller outside the first active roller sequentially bypasses the first driving roller, the rear printing platform, the front printing platform and the second driving roller, The first and second driving rollers drive the cloth; the front side of the canvas is first printed by the nozzle on the back printing carriage, and the PASS number of the other half is printed by the nozzle on the front printing carriage to realize the double speed of the canvas. Inkjet printing.

The advantages and positive effects of the present invention are:

1. The invention has a driving roller disposed under each printing platform, and the two driving rollers are respectively driven by the independent driving device to synchronously rotate in reverse, thereby ensuring the stepping precision of the double-sided printing.

2. The invention can simultaneously synthesize double-sided precise inkjet printing, and can simultaneously perform single-sided inkjet printing of two canvases on one machine, thereby realizing multi-purpose of one machine.

3. The printing surface of the invention can be a plane or a curved surface. When the plane is flat, the wide nozzle printing can be applied while ensuring the printing precision; the plane printing surface can also be applied to the installation of multiple sets of nozzles without increasing the roller diameter, which is more convenient. Bit operation.

1‧‧‧First guide roller

2‧‧‧First discharge roller

3‧‧‧First Cloth Roller

4‧‧‧First cloth roll

5‧‧‧First active roller

6‧‧‧Second guide roller

7‧‧‧Back printing platform

8‧‧‧First nozzle

9‧‧‧Backside printing trolley

10‧‧‧Backside painted rail beam

11‧‧‧3rd guide roller

12‧‧‧fourth guide roller

13‧‧‧ wall panel

14‧‧‧Fifteen guide roller

15‧‧‧Front inkjet guide beam

16‧‧‧Front inkjet trolley

17‧‧‧Second nozzle

18‧‧‧6th guide roller

19‧‧‧Front inkjet platform

20‧‧‧Second drive roller

21‧‧‧Second cloth roll

22‧‧‧Second Cloth Roller

23‧‧‧Second release roller

24‧‧‧ canvas

25‧‧‧ seventh guide roller

26‧‧‧Single-side inkjet printing roller

27‧‧‧Double-sided inkjet roller

28‧‧‧Single-sided printing and collecting roller

29‧‧‧Double-sided printing and collecting roller

30‧‧‧8th guide roller

31‧‧‧Ninth guide roller

32‧‧‧Multi-speed single-sided inkjet printing roller

33‧‧‧Multi-speed single-sided printing and collecting roller

1 is a schematic structural view of a first embodiment of an inkjet printer of the present invention (single-sided inkjet); FIG. 2 is a schematic structural view of a second embodiment of the inkjet printer of the present invention (single-sided inkjet); FIG. 3 is a structure of a third embodiment of the inkjet printer of the present invention. Schematic diagram (double-sided inkjet); FIG. 4 is a schematic structural view (double-sided inkjet) of the fourth embodiment of the inkjet printer of the present invention; FIG. 5 is a schematic structural view of a fifth embodiment of the ink jet printer of the present invention (double speed single-sided inkjet printing).

The invention will be further described in detail below with reference to the accompanying drawings.

The digital inkjet printer of the invention comprises a frame, a cloth discharge roller, a cloth discharge roller, two sets of inkjet trolleys and a driving roller, and the two sets of inkjet trolleys respectively reciprocate on two sets of rail beams mounted on the frame, two The group of inkjet cars are equipped with nozzles. Under the two sets of inkjet trolleys, there are inkjet platforms installed on the frame. The inkjet surface of the inkjet platform can be flat or curved; in two inkjet trolleys The lower part is provided with a driving roller, and the two driving rollers are respectively driven by two independent driving devices mounted on the frame to rotate in opposite directions; the discharging roller and the collecting roller are respectively installed on both sides of the two driving rollers On the outer frame of the rack, or on the outer side of each of the driving rollers, a set of cloth discharging rollers and a collecting roller mounted on the frame are arranged, and the canvas 24 of the single-side printing on the discharging roller is driven by the driving roller. And the cloth is collected by the same side of the collecting roller, and the canvas 24 which is double-sidedly sprayed on the discharging roller is driven by the two driving rollers, and is taken up by the collecting roller on the other side.

Embodiment 1 (single-sided inkjet)

The digital inkjet printer of the embodiment can simultaneously perform two-side printing on two rolls of canvas 24 on one machine to form a double-speed digital inkjet printer; double speed is a machine, and two single-sided inkjet printing can be simultaneously performed. As shown in FIG. 1, the digital inkjet printer of the embodiment includes a frame, a cloth discharge roller, a cloth discharge roller, a rear inkjet carriage 9, a front inkjet carriage 16, a first drive roller 5, and a second drive roller 20. The frame is composed of two side wall panels 13 and a rail beam installed between the two wall panels 13. The first and second driving rollers 5, 20 are symmetrically arranged and are respectively rotatably mounted on the wall panel 13. The outer sides of the first driving roller 5 and the second driving roller 20 are provided with two cloths mounted on the frame The roller, the two cloth rollers outside the first driving roller 5 are the first discharging roller 2 and the first collecting roller 3, and the two cloth rollers outside the second driving roller 20 are the second discharging roller 23 and the second receiving roller The cloth roll 22; the first collecting roller 3 on the same side and the first cloth discharging roller 2 are disposed above and below, both are located below the outer side of the first driving roller 5, so as to facilitate the operator to receive and discharge the cloth; the second receiving cloth on the same side The roller 22 and the second discharge roller 23 are disposed above and below, and are located below the outer side of the second driving roller 20, so as to facilitate the operator to receive and discharge the cloth. A first clothizing roller 4 mounted on the frame is disposed below the first driving roller 5, and a second clothizing roller 21 mounted on the frame is disposed below the second driving roller 20, the first and second cloths The rollers 4 and 21 need to be in contact with the first and second driving rollers 5 and 20, respectively, under the action of the cylinder.

The frame is provided with a rear inkjet rail beam 10 and a front inkjet rail beam 15, which are parallel to each other and parallel to the horizontal plane. The rear inkjet carriage 9 and the front inkjet carriage 16 can reciprocate along the length direction of the rear inkjet rail beam 10 and the front inkjet rail beam 15, respectively, and the back inkjet carriage 9 is provided with a first nozzle 8 and a front inkjet carriage 16 With a second nozzle 17. A rear inkjet platform 7 and a front inkjet platform 19 mounted on the wall panel 13 are respectively disposed under the rear inkjet carriage 9 and the front inkjet carriage 16, and the upper surface of the rear inkjet platform 7 and the front inkjet platform 19 is the canvas 24 On the inkjet surface of the two inkjet platforms, the inkjet surfaces of the two inkjet platforms may be planar and parallel to the horizontal plane, or may be curved surfaces.

The first driving roller 5 and the second driving roller 20 are respectively located on the side of the rear printing platform 7 and the front printing platform 19, and the highest point of the first driving roller 5 is located below the printing surface of the rear printing platform 7 or with the back printing. The platform 7 is contoured, and the highest point of the second driving roller 20 is located below the printing surface of the front printing platform 19 or is equal to the front printing platform 19; the first driving roller 5 of the embodiment is located on the left side below the rear printing platform 7. The second drive roller 20 is located on the right side below the front inkjet platform 19. There are multiple changes to the canvas 24 on the rack. The guide roller, the embodiment has seven guide rollers mounted on the wall panel 13, respectively, a second guide roller 6 on the right side of the rear printing platform 7, located under the second guide roller 6 and located at the first The first guide roller 1 on the right side of the driving roller 5 and the first clothizing roller 4, and the third cloth guiding roller 11 and the fourth cloth guiding roller 12 on the left and right sides above the rear printing platform 7 are located on the front printing platform 19 a sixth guide roller 18 on the left side, a seventh guide roller 25 located below the sixth guide roller 18 and located to the left of the second drive roller 20 and the second cloth roller 21, located at the second guide roller 6 and The fifth guide roller 14 is located before the sixth guide roller 18 and below the fourth guide roller 12.

The canvas 24 on the first placing roller 2 is driven by the first driving roller 5, and is taken up by the first collecting roller 3 on the same side, and the canvas 24 on the second discharging roller 23 passes through the second driving roller 20. The cloth is driven and received by the second collecting roller 22 on the same side.

The winding method of the embodiment is that the digital inkjet printer of the embodiment is equivalent to two single-sided inkjet printers when printing on one side. The canvas 24 on the first discharge roller 2 is sequentially wound around the first guide roller 1, the second guide roller 6, the rear printing platform 7, and then wound on the first driving roller 5, and the first driving roller 5 and the first The cloth passing roller 4 passes between and finally wound on the first collecting roller 3; the canvas 24 is driven by the first driving roller 5, and the first nozzle 8 on the rear printing carriage 9 performs the single surface of the canvas 24. The inkjet, inkjet finished canvas 24 is received by the first take-up roller 3. Similarly, the canvas 24 on the second discharge roller 23 sequentially passes around the seventh guide roller 25, the sixth guide roller 18, the front printing platform 19, and then wound on the second driving roller 20, and the second driving roller 20 Passing through between the second clothizing roller 21 and finally winding on the second collecting roller 22; the canvas 24 is driven by the second driving roller 20, and the second nozzle 17 on the front printing carriage 16 is opposite to the canvas 24. The single side is inkjet, and the inkjet finished canvas 24 is received by the second take-up roll 22. When printing on one side, the first and second driving rollers 5, 20 can rotate synchronously. It is also possible to rotate without synchronization, depending on the actual situation.

Example 2 (single-sided inkjet)

As shown in Fig. 2, the difference between this embodiment and the first embodiment is that the first and second cloth rolls 4, 21 are replaced by the eighth cloth guide roller 30 and the ninth cloth guide roller 31. The eighth guide roller 30 is located below the right side of the first drive roller 5, and the ninth guide roller 31 is located below the left side of the second drive roller 20.

The winding method of the embodiment is that the digital inkjet printer of the embodiment is equivalent to two single-sided inkjet printers when printing on one side. The canvas 24 on the first discharge roller 2 is sequentially wound around the first guide roller 1, the second guide roller 6, the rear printing platform 7, and then wound on the first driving roller 5, by the first driving roller 5 and the eighth The guide rollers 30 pass between each other and are finally wound on the first take-up roller 3; the canvas 24 is driven by the first driving roller 5, and the first nozzle 8 on the rear printing carriage 9 performs one side of the canvas 24. The inkjet, inkjet finished canvas 24 is received by the first take-up roller 3. Similarly, the canvas 24 on the second discharge roller 23 sequentially passes around the seventh guide roller 25, the sixth guide roller 18, the front printing platform 19, and then wound on the second driving roller 20, and the second driving roller 20 Passing through between the ninth guide roller 31 and finally winding on the second collecting roller 22; the canvas 24 is driven by the second driving roller 20, and the second nozzle 17 on the front printing carriage 16 is opposite to the canvas 24. The single side is inkjet, and the inkjet finished canvas 24 is received by the second take-up roll 22. In the single-sided printing, the first and second driving rollers 5, 20 can be rotated synchronously or asynchronously, depending on actual needs.

Example 3 (double-sided inkjet)

As shown in FIG. 3, the difference between the embodiment and the first embodiment is that the two cloth rolls on the outer side of the first driving roller 5 in the first embodiment are the first cloth collecting rollers 3 located above. The other is the first laying roller 2 located below, and in this embodiment, the first collecting roller 3 is placed as a double-sided printing and discharging roller 27, and the first discharging roller 2 is still used as a single-side printing and discharging roller. 26, in this embodiment does not participate in the work; likewise, in the first embodiment, the two cloth rollers outside the second driving roller 20, one is the second collecting roller 22 located above, and the other is the second laying below The cloth roll 23, and in this embodiment, the second take-up roll 22 is still used as the single-side print-receiving roll 28, which does not participate in the work in this embodiment, and the second discharge roll 23 is used as the double-side print-off roll 29 Closing. In this embodiment, the front and back sides of the canvas 24 are sequentially in contact with the first and second driving rollers 5, 20, and the first and second driving rollers 5, 20 are respectively driven by two independent driving devices to synchronously rotate in opposite directions.

The first cloth roller 4 and the second cloth roller 21 in this embodiment can simultaneously abut the first driving roller 5 and the second driving roller 20, or only the first cloth roller 4 and the first driving roller 5 can be abutted. Connected, or neither of them, depending on the receiving power of the double-sided printing and collecting roller 29.

The winding method of the embodiment is: when the digital inkjet printer of the embodiment is on the double-sided inkjet printing, the winding route of the canvas 24 between the double-side inkjet printing roller 27 and the double-sided inkjet roller 29 is "S" shaped. The canvas 24 on the double-sided inkjet discharge roller 27 on one side of the rack sequentially bypasses the third guide roller 11, the fourth guide roller 12, the fifth guide roller 14, the second guide roller 6, and the back surface. The printing platform 7, the first driving roller 5 (passed between the first driving roller 5 and the first cloth roller 4), the sixth cloth guiding roller 18, the front printing platform 19, and the second driving roller 20 (by the second After passing between the driving roller 20 and the second clothizing roller 21, it is wound on the double-sided printing and collecting roller 29 on the other side of the frame; one side of the canvas 24 is first printed on the back of the carriage 9 The nozzle 8 performs inkjet printing, and then the surface is changed between the first driving roller 5 and the second driving roller 20. The other side of the canvas 24 is further printed by the second nozzle 17 on the front printing carriage 16 to realize the canvas 24. Double-sided inkjet, double-sided inkjet painting The cloth 24 is received by the double-sided inkjet roller 29. When the canvas 24 of the embodiment is printed on both sides, the first and second driving rollers 5, 20 are synchronously rotated in the reverse direction to ensure the precision of the double-sided printing, and the canvas 24 does not pleat during the running.

Embodiment 4 (double-sided inkjet)

As shown in FIG. 4, the difference between this embodiment and the third embodiment is that the first and second cloth rolls 4, 21 are replaced by the eighth cloth guide roller 30 and the ninth cloth guide roller 31. The eighth guide roller 30 is located below the right side of the first drive roller 5, and the ninth guide roller 31 is located below the left side of the second drive roller 20.

The winding method of the embodiment is: when the digital inkjet printer of the embodiment is on the double-sided inkjet printing, the winding route of the canvas 24 between the double-side inkjet printing roller 27 and the double-sided inkjet roller 29 is "S" shaped. The canvas 24 on the double-sided inkjet discharge roller 27 on one side of the rack sequentially bypasses the third guide roller 11, the fourth guide roller 12, the fifth guide roller 14, the second guide roller 6, and the back surface. The printing platform 7, the first driving roller 5 (passed between the first driving roller 5 and the eighth guiding roller 30), the sixth guiding roller 18, the front printing platform 19, and the second driving roller 20 (by the second After passing between the driving roller 20 and the ninth guide roller 31, it is wound on the double-sided inkjet roller 29 on the other side of the frame; one side of the canvas 24 is first printed on the back of the carriage 9 The nozzle 8 performs inkjet printing, and then the surface is changed between the first driving roller 5 and the second driving roller 20. The other side of the canvas 24 is further printed by the second nozzle 17 on the front printing carriage 16 to realize the canvas 24. The double-sided inkjet printing and the double-sided inkjet painting 24 are received by the double-sided inkjet collecting roller 29. When the canvas 24 of the embodiment is printed on both sides, the first and second driving rollers 5, 20 are synchronously rotated in the reverse direction to ensure the precision of the double-sided printing, and the canvas 24 does not pleat during the running.

Embodiment 5 (double speed single-sided inkjet printing)

As shown in FIG. 5, this embodiment differs from the first embodiment in that, in the first embodiment, two cloth rolls on the outer side of the first driving roller 5, one is the first collecting roller 3 located above, and the other is located below. The first cloth discharge roller 2, and in this embodiment, the first cloth discharge roller 3 is disposed as a double-speed single-side discharge cloth discharge roller 32, and the first cloth discharge roller 2 is still used as a single-side discharge cloth discharge roller 26, In the embodiment, the two cloth rolls outside the second driving roller 20 in the first embodiment, one is the second collecting roller 22 located above, and the other is the second discharging roller 23 located below. In the present embodiment, the second take-up roll 22 is still used as the single-side draw-off roll 28, and in the present embodiment, the second take-up roll 23 is not taken into operation, and the second discharge roll 23 is taken as the double-speed single-side discharge take-up roll 33. In this embodiment, the reverse side of the canvas 24 is sequentially in contact with the first and second driving rollers 5, 20, and the first and second driving rollers 5, 20 are respectively driven by two independent driving devices to rotate in the same direction.

The eighth cloth guide roller 30 and the ninth guide roller 31 of the present embodiment can also be replaced by the first cloth roller 4 and the second cloth roller 21.

The winding method of the embodiment is: when the digital inkjet printer of the embodiment is in the single-speed printing, the canvas 24 on the double-speed single-side printing and discharging roller 32 on one side of the rack sequentially bypasses the eighth guiding roller 30. a first driving roller 5 (passed between the first driving roller 5 and the eighth guiding roller 30), a rear printing platform 7, a second guiding roller 6, a fifth guiding roller 14, and a sixth guiding roller 18 (from the rear printing platform 7 after the second cloth guide roller 6, above the fifth cloth guide roller 14, above the sixth cloth guide roller 18 into the front inkjet platform 19), the front inkjet platform 19, the second driving roller 20 (passed between the second driving roller 20 and the ninth guide roller 31), the ninth guide roller 31, and wound on the double-speed single-sided printing and collecting roller 33 on the other side of the frame; the canvas 24 The front is first painted by the back The first nozzle 8 on the car 9 prints half of the PASS number (the number of times the screen is formed to be printed, that is, the number of times of coverage per unit area), and the PASS number of the other half is completed by the second head 17 on the front inkjet carriage 16 Printing, the double-speed single-sided printing of the canvas 24 is realized. The double-speed single-sided inkjet painting 24 is received by the double-speed single-sided inkjet collecting roller 33. When the canvas 24 of the present embodiment is printed on the single-speed double-speed, the first and second driving rollers 5, 20 are synchronously rotated in the same direction.

The invention can realize the single-side printing of two canvases at the same time by one machine, and can simultaneously synthesize two-sided inkjet printing with two sets of nozzles, and can also print the PASS number of one canvas 24 in half, and the back printing carriage 9 first. The half of the PASS number is printed, and the other half is completed by the front inkjet carriage 16, which realizes a multi-purpose machine.

1‧‧‧First guide roller

2‧‧‧First discharge roller

3‧‧‧First Cloth Roller

4‧‧‧First cloth roll

5‧‧‧First active roller

6‧‧‧Second guide roller

7‧‧‧Back printing platform

8‧‧‧First nozzle

9‧‧‧Backside printing trolley

10‧‧‧Backside painted rail beam

11‧‧‧3rd guide roller

12‧‧‧fourth guide roller

13‧‧‧ wall panel

14‧‧‧Fifteen guide roller

15‧‧‧Front inkjet guide beam

16‧‧‧Front inkjet trolley

17‧‧‧Second nozzle

18‧‧‧6th guide roller

19‧‧‧Front inkjet platform

20‧‧‧Second drive roller

21‧‧‧Second cloth roll

22‧‧‧Second Cloth Roller

23‧‧‧Second release roller

24‧‧‧ canvas

25‧‧‧ seventh guide roller

Claims (15)

A synchronous single-sided digital inkjet printer comprising a frame, a cloth discharge roller, a cloth discharge roller, two sets of inkjet trolleys and a driving roller, wherein the two sets of inkjet trolleys are respectively mounted on the frame Reciprocating movement on the track beam, the two sets of inkjet trolleys are equipped with nozzles, and there are inkjet platforms installed on the frame below the two sets of inkjet trolleys; Roller, the two driving rollers are respectively driven to rotate in reverse by two independent driving devices mounted on the frame; the discharging roller and the collecting roller are respectively mounted on the racks on both sides of the two driving rollers, or each driving roller The outer side of the cloth is provided with a set of cloth discharge rollers and a cloth discharge roller, and the canvas printed on one side of the cloth discharge roller is driven by a driving roller, and is received by the same side of the cloth collecting roller. The canvas on both sides of the discharge roller is driven by two of the driving rollers, and is taken up by the collecting roller on the other side. The synchronous single-sided digital inkjet printer according to claim 1, wherein the two sets of inkjet vehicles are a rear inkjet carriage and a front inkjet carriage, and the rear inkjet carriage and the front inkjet carriage are respectively provided with a back surface. The printing platform and the front printing platform; the two driving rollers are a first driving roller and a second driving roller, wherein the first and second driving rollers are symmetrically mounted on the frame, and the highest point of the first driving roller is located on the back printing platform Below the surface or the same height as the back printing platform, the highest point of the second driving roller is located below the printing surface of the front printing platform or is equal to the front printing platform, and the first driving roller and the second driving roller are respectively located on the back printing platform The side with the front inkjet platform in the direction of the cloth. The synchronous single-sided digital inkjet printer according to claim 2, wherein the outer sides of the first driving roller and the second driving roller are provided with two cloth rollers mounted on the frame, and two cloth rollers on each side. When printing on one side, it is a cloth discharge roller and a cloth discharge roller, and the canvas on each side of the cloth discharge roller passes the driving roller on the side. Drive the cloth and take it off by the same side of the cloth. The synchronous single-sided digital inkjet printer of claim 3, wherein the outer side of the first driving roller is provided with a first discharging roller and a first collecting roller respectively mounted on the frame, and the first discharging roller The upper canvas is driven by the first driving roller and is received by the first collecting roller; the outer side of the second driving roller is provided with a second discharging roller and a second collecting roller respectively mounted on the frame The canvas on the second discharge roller is driven by the second driving roller and is received by the second receiving roller. The synchronous single-sided digital inkjet printer according to claim 2, wherein the outer sides of the first driving roller and the second driving roller are provided with two cloth rollers mounted on the frame, and one side of the double-sided inkjet printing One of the two cloth rolls is a cloth discharge roller, and one of the two cloth rolls on the other side is a cloth discharge roller, and the canvas on the cloth discharge roller is driven by the first and second driving rollers, and The take-up roll is received. The synchronous single-sided digital inkjet printer of claim 5, wherein the front and back sides of the canvas are in contact with the first and second driving rollers, respectively, and the first and second driving rollers are respectively driven by two independent driving devices. Synchronous reverse rotation. The synchronous single-sided digital inkjet printer according to any one of claims 2 to 6, wherein the first and second driving rollers are provided with a cloth roller mounted on the frame, and the canvas is provided by the first Between a drive roller and the cloth roll or between the second drive roller and the cloth roll. A synchronous single-sided digital inkjet printer according to any one of claims 2 to 6, wherein the frame is provided with a plurality of guide rollers for changing the direction of the canvas. A synchronous single-sided digital inkjet printer comprising a frame, a cloth discharge roller, a cloth discharge roller, two sets of inkjet trolleys and a driving roller, wherein the two sets of inkjet trolleys are respectively mounted on the frame Reciprocating movement on the track beam, the two sets of inkjet trolleys are equipped with nozzles, and there are inkjet platforms installed on the frame below the two sets of inkjet trolleys; there are mains under the two inkjet trolleys. a moving roller, the two driving rollers are respectively driven to rotate in the same direction by two independent driving devices mounted on the frame; the discharging roller and the collecting roller are respectively mounted on the racks on both sides of the two driving rollers, and the distributing cloth The double-speed single-sided inkjet canvas on the roller is driven by two of the driving rollers rotating in the same direction, and is taken up by the collecting roller on the other side. The synchronous single-sided digital inkjet printer according to claim 9, wherein the two sets of inkjet vehicles are a rear inkjet carriage and a front inkjet carriage, and the rear inkjet carriage and the front inkjet carriage are respectively provided with a back surface. The printing platform and the front printing platform; the two driving rollers are a first driving roller and a second driving roller, wherein the first and second driving rollers are symmetrically mounted on the frame, and the highest point of the first driving roller is located on the back printing platform Below the surface or the same height as the back printing platform, the highest point of the second driving roller is located below the printing surface of the front printing platform or is equal to the front printing platform, and the first driving roller is located on the side of the back printing platform. The second driving roller is located on one side of the front printing plane of the front printing platform. The synchronous single-sided digital inkjet printer according to claim 10, wherein the outer sides of the first driving roller and the second driving roller are provided with two cloth rollers mounted on the frame, and one side of the double-speed single-sided printing Either of the two cloth rolls is a cloth discharge roller, and one of the two cloth rolls on the other side is a cloth discharge roller, and the canvas on the cloth discharge roller is driven by the first and second driving rollers, and The cloth is received by the take-up roll. The synchronous single-sided digital inkjet printer of claim 11, wherein the reverse side of the canvas is in contact with the first and second driving rollers, and the first and second driving rollers are respectively driven by two independent driving devices. Rotate. A method for winding a synchronous single-sided digital inkjet printer according to claim 3, characterized in that: the synchronous single-sided digital inkjet printer is equivalent to two single-sided inkjet printers when first-sided inkjet printing, that is, the first The canvas between the discharge roller and the take-up roller on the outside of the driving roller is driven by the first driving roller The cloth is sprayed when the carriage is printed on the back side; the canvas between the discharge roller and the take-up roller on the outside of the second drive roller is driven by the second driving roller, and is sprayed when the front side is painted. A method for winding a synchronous single-sided digital inkjet printer according to claim 5, characterized in that, in the double-sided printing, the cloth of the canvas between the first and second driving rollers and the cloth discharging roller are wound. The route is "S" shape, and the canvas sequentially bypasses the back printing platform, the first driving roller, the front printing platform and the second driving roller, and the first and second driving rollers drive the cloth; one side of the canvas is first printed by the back. The upper nozzle is sprayed, and then the surface is changed between the first and second driving rollers, and the other side of the canvas is sprayed by the nozzle on the front side of the painting carriage to realize double-sided printing of the canvas. A method for winding a synchronous single-sided digital inkjet printer according to claim 11, wherein the synchronous single-sided digital inkjet printer is on a single-side inkjet printing machine, and is disposed on a discharge roller outside the first active roller The canvas sequentially bypasses the first driving roller, the rear printing platform, the front printing platform and the second driving roller, and the first and second driving rollers drive the cloth; the front side of the canvas is firstly sprayed by the nozzle on the back printing carriage. The number of PASS and the PASS number of the other half are printed by the nozzle on the front inkjet carriage to realize the double-speed single-sided printing of the canvas.