WO2015095992A1 - 喷墨打印装置及打印方法 - Google Patents
喷墨打印装置及打印方法 Download PDFInfo
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- WO2015095992A1 WO2015095992A1 PCT/CN2013/090182 CN2013090182W WO2015095992A1 WO 2015095992 A1 WO2015095992 A1 WO 2015095992A1 CN 2013090182 W CN2013090182 W CN 2013090182W WO 2015095992 A1 WO2015095992 A1 WO 2015095992A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/001—Handling wide copy materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J25/00—Actions or mechanisms not otherwise provided for
- B41J25/001—Mechanisms for bodily moving print heads or carriages parallel to the paper surface
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- the present invention relates to an inkjet printing apparatus and a printing method, and more particularly to an inkjet printing apparatus and a printing method for intermittently rotating a plurality of printing platforms to supply an object to be printed.
- the inkjet printing technique refers to a technique of ejecting ink droplets onto an object to be printed through a head to obtain a printed image or text.
- the technology is non-contact printing, and has wide printing speed, low pollution, and can adapt to various objects to be printed, and is widely used in industrial applications.
- Inkjet printing is divided into two types: scanning inkjet printing and onepass inkjet printing according to the movement mode of the printing carriage and the object to be printed, and the scanning inkjet printing includes roll-to-roll inkjet printing.
- Peaceful desktop inkjet printing in which roll-to-roll inkjet printing in the inkjet printing process, the printing carriage moves back and forth along the rail beam relative to the object to be printed, and the object to be printed moves relative to the direction perpendicular to the moving direction of the printing carriage, and is installed.
- the guide rail of the printing carriage is stationary; and the platform inkjet printing has two situations in the inkjet printing process. One is that the rail beam does not move during the inkjet printing process, and the printing carriage moves back and forth along the rail beam, and the printing platform is along the printing platform.
- the printing carriage is stationary during the inkjet process, and the object to be printed moves in one direction at a high speed.
- the use of one-time paper imaging inkjet printing requires high print accuracy and print width of the print head.
- the print accuracy of the print head needs to be the print precision of the image
- the print width of the print head needs to be the print width of the image. Ways to achieve high precision and a wider print width by means of a serial nozzle, but this inevitably increases the number of nozzles, whether using high-precision nozzles or high print accuracy through multiple nozzles, which necessarily makes the printer The cost is increasing.
- the printing platform is mostly stationary, the printing carriage reciprocates along the rail beam relative to the printing medium, and the rail beam is relatively moved in a direction perpendicular to the rail beam to feed the printing medium and improve printing precision.
- the rail beam itself is heavier, the design of the moving mechanism is relatively complicated and costly, and the volume of the whole machine is large.
- an object of the present invention is to provide an ink jet printing apparatus which is simple in structure, low in cost, high in printing precision, and intermittently rotated by a plurality of printing platforms to supply an object to be printed.
- the present invention provides an inkjet printing apparatus comprising a printing carriage, at least one printing head mounted on the printing carriage; a bracket, the bracket is provided with a first driving mechanism, the first driving mechanism is used for Driving the printing carriage to move back and forth along a second direction perpendicular to the rail beam, and the bracket moves substantially at a constant speed in a first direction parallel to the rail beam; a paper feeding mechanism that intermittently rotates Object to be printed; a control system that controls the operation of the paper feed mechanism, carriage, print carriage, and printhead.
- the carriage and the printing carriage are moved in such a manner that the bracket moves from one end in the first direction to the other end, and the manner of returning from the other end to the one end is relative to the object to be printed, and the printing carriage is printed. Relative movement in the second direction relative to the object to be printed in the state of one end.
- the carriage and the printing carriage may be moved in such a manner that after the carriage moves from one end in the first direction to the other end, the printing carriage is in the second direction relative to the object to be printed in the state of the other end of the printing carriage. The relative movement is performed, and then the carriage moves from the other end to the end to be printed in the first direction.
- a second driving mechanism is further disposed on the bracket, and the second driving mechanism drives the printing carriage to move up and down along a third direction perpendicular to the plane of the printing medium.
- the paper feeding mechanism includes at least two printing platforms for arranging objects to be printed, a base and a third driving mechanism, and the plurality of printing platforms are arranged on the base in a circumferential direction, and the third driving mechanism drives more The printing platform rotates around the center axis of the base.
- the printing platform is coupled to the center axis of the base via a spiral arm.
- a curing device is provided at each of the left and right ends of the printing carriage, and the curing device is constituted by a plurality of LED lamps arranged in the second direction.
- Another object of the present invention is to provide an ink jet printing method which ejects ink droplets from a print head mounted on a printing carriage, and irradiates ultraviolet rays to an object to be printed by a curing device disposed at both ends of the printing carriage.
- the carriage is relatively reciprocated relative to the object to be printed in a first direction, and the carriage moves in a stepwise motion relative to the object to be printed in a second direction orthogonal to the first direction;
- the platform intermittently rotates around the central axis of the base, and the inkjet printing method of the present invention comprises the following steps: first, moving the bracket from the one end to the other end in the first direction relative to the first object to be printed, from the print head
- the first object to be printed on the first printing platform ejects ink droplets, and irradiates ultraviolet rays in the self-curing device to solidify the ink droplets; in the second step, the printing carriage is printed in the second direction relative to the first to be printed in the state of the other end.
- the object is relatively moved; in the third step, the holder is ejected from the print head while moving the end of the holder in the first direction from the other end with respect to the object to be printed.
- the ink droplets are superimposed on the ink droplets on the first object to be printed on the first printing platform in the first step, and the ultraviolet rays are irradiated from the curing device to solidify the ink droplets; in the fourth step, the first step is repeated.
- the second step and the third step are until the image is printed on the first object to be printed; in the fifth step, the paper feeding mechanism is rotated to supply the second object to be printed; repeating the first step, the second step, the third step, the fourth step Steps until the image is printed on the second object to be printed; in the sixth step, the first step, the second step, the third step, the fourth step, and the fifth step are repeated until all the objects to be printed are printed.
- the above printing method further includes adjusting the distance between the plane of the nozzle on the printing carriage and the object to be printed to a distance suitable for printing by adjusting the second driving mechanism before starting the first step.
- It is still another object of the present invention to provide another inkjet printing method comprising the steps of: first moving the carriage from one end to the other in a first direction relative to the first object to be printed Ejecting ink droplets from the print head to the first object to be printed on the first printing platform, and irradiating the ultraviolet rays to cure the ink droplets in the self-curing device; in the second step, the brackets are printed in the first direction relative to the first to be printed The object moves from one end to the other end, and the ink droplet ejected from the printing head is superimposed on the ink droplet attached to the first object to be printed on the first printing platform in the first step, and the ultraviolet light is irradiated from the curing device.
- the ink droplet is solidified; in the third step, the printing carriage is stepped in the second direction relative to the first object to be printed in the state of one end; in the fourth step, the first step, the second step and the third step are repeated until Printing the image on the first object to be printed; in the fifth step, the paper feeding mechanism is rotated to supply the second object to be printed; repeating the first step, the second step, the third step, and the fourth step until the second pair to be printed After the print image; a sixth step of repeating the first step, second step, third step, fourth step, fifth step until all objects to be printed has been printed.
- the above printing method further includes adjusting the distance between the plane of the nozzle on the printing carriage and the object to be printed to a distance suitable for printing by adjusting the second driving mechanism before starting the first step.
- the inkjet printing device of the invention has a simple structure, and the scanning printing on the platform can be realized by the movement of the printing carriage in the first direction and the second direction, and the high-precision wide-width printing can be realized by using fewer nozzles, the invention
- the paper feeding mechanism of the inkjet printing device intermittently supplies the object to be printed in a rotary manner, and can realize synchronous feeding, blanking, and printing, thereby improving printing efficiency.
- Figure 1 is a schematic view of an ink jet printing apparatus of the present invention
- Figure 2 is a perspective view of a printing portion of the ink jet printing apparatus of the present invention.
- Figure 3 is a perspective view showing the printing carriage mounted on the bracket in the ink jet printing apparatus of the present invention.
- Figure 4 is a perspective view of the bracket of the ink jet printing apparatus of the present invention.
- Figure 5 is a flow chart of the inkjet printing method of the present invention.
- FIG. 6 is a flow chart of another inkjet printing method of the present invention.
- the ink jet printing apparatus of the present invention comprises a printing carriage 3, a rail beam 1, a bracket 2, a paper feed mechanism 4, and a control system (not shown).
- the rail beam 1 includes a cross bracket 11 and a left pillar 10a and a right pillar 10b.
- a driving mechanism for driving the bracket 2 in the first direction is mounted on the horizontal bracket 11.
- the driving mechanism is composed of a servo motor 15 and a belt 12 and a left pulley 13a and a right pulley 13b which are disposed at one end of the horizontal bracket 11.
- the left pulley 13a and the right pulley 13b are respectively disposed at the left and right ends of the horizontal bracket 11, wherein the left pulley 13a is connected to the servo motor 15, and the belt 12 is connected to the left pulley 13a and the right pulley 13b by the servo motor 15
- the left pulley 13a is rotated to drive the belt 12 to move.
- a grating 17 is also mounted on the cross bracket 11 for positioning the movement position of the printing carriage in the first direction.
- an upper rail 14b and a lower rail 14a are attached to the horizontal bracket 11, and two sliders are mounted on the rear surface of the bracket 2 to be fitted with the upper rail 14b and the lower rail 14a, so that the bracket 2 can be along the upper rail 14b and the lower rail 14a.
- the first direction (left and right direction) is free to move back and forth.
- a tow link plate 16 and an e-chain 18 are also mounted on the horizontal bracket 11. The end of the towline 18 is connected to the bracket 2, and the other end is mounted on the tow link plate 16.
- the tow link plate 16 is a groove structure, and the towline 18 is Movement back and forth within the groove structure.
- the print carriage 3 is mounted on the carriage 2, and a print head including inks for ejecting magenta (M), yellow (Y), cyan (C), and black (K) inks, and a print head for each color ink are mounted on the carriage 3. At least one, in order to increase the printing speed, multiple print heads can be used to print the same color ink. At least one printhead for printing white (W) ink and/or transparent color (V) ink, respectively, may also be mounted on the print carriage of the present invention. An ink cartridge for accommodating ink and a corresponding negative pressure control system may be disposed on the printing carriage 3. The ink used in the printhead of the present invention is UV ink.
- a curing device 32 is attached to each end of the printing carriage 3, respectively.
- the curing device of the present invention is composed of a plurality of LEDs for illuminating ultraviolet rays arranged in the second direction.
- the present invention may also be provided with a curing device at one end of the printing carriage 3, such as a curing device disposed at the left end of the printing carriage 3, Or a curing device is provided at the right end of the printing carriage 3.
- the bracket 2 is mounted on the rail beam 1, and the control system controls the driving mechanism to drive the bracket 2 to reciprocate in the first direction (the direction of the rail beam, the X-axis direction often speaking in the inkjet printing field), and controls the first on the bracket 2
- the driving mechanism drives the printing carriage 3 to perform a stepping motion with respect to the object to be printed in the second direction (the direction of the vertical rail beam, the Y-axis direction often speaking in the inkjet printing field), and is controlled to be installed during the movement of the printing carriage 3
- the printhead on it ejects ink droplets onto the object to be printed.
- the rail beam 1 is mounted on the printing base through the left pillar 10a and the right pillar 10b.
- a servo motor 11 is mounted on the rail beam 1.
- the servo motor 11 drives the bracket 2 through the belt pulley 12 to drive the printing trolley mounted on the bracket 2. 3 moving left and right in the first direction at a substantially constant speed.
- the paper feeding mechanism 4 in one embodiment of the present invention includes a printing platform 41-48, a rotating arm 51-58, a rotating central shaft 6, a third driving mechanism and a base (not shown), and the printing platform 41-48 is wound.
- the central axes of rotation 6 are arranged in a circumferential array, the printing platforms 41-48 are used to mount the objects to be printed, and the printing platforms 41-48 are connected to the central axis of rotation 6 via the arms 51-58, respectively.
- the control system controls the third drive mechanism to drive the printing platforms 41-48 to intermittently rotate to supply the object to be printed.
- the paper feed mechanism of the present invention can also be provided with two, three, four, five, six or other number of printing platforms.
- a first driving mechanism is disposed on the bracket 2, including a motor 21, a lead screw 22, and a nut 23.
- the output end of the motor 21 is connected to the lead screw 22, and the lead screw 23 is mounted on the lead screw 23.
- the nut 23 is connected to the printing carriage 3 through the silk base, and a slider 31 is mounted on each side of the printing carriage 3, and the slider 31 cooperates with the guide rail 25 disposed on both sides of the bracket 2, and the screw 22 is driven by the motor 21.
- the spring 23 rotates to drive the printing carriage 3 to move back and forth in the second direction.
- the bracket 2 and the printing carriage 3 in the present invention are moved in such a manner that the bracket 2 moves from one end in the first direction (the right end in the drawing) to the other end (the left end in the figure), and the manner of returning from the other end to the one end is relatively
- the object to be printed is relatively moved, and then the carriage 3 is relatively moved in the second direction with respect to the object to be printed in a state of one end (moving from the back to the front).
- the motion of the bracket 2 and the printing carriage 3 in the present invention may also be such that after the carriage 2 is moved from one end in the first direction to the other end, the carriage 3 is in the second direction relative to the to-be-printed state in the state of the other end. The object is relatively moved, and then the bracket 2 is moved from the other end in the first direction to the end to be printed with respect to the object to be printed.
- a second driving mechanism for driving the carriage 3 in the third direction may be further disposed on the bracket 2 of the present invention. Move up and down to accommodate different thicknesses of objects to be printed.
- the printing carriage and the rail beam and the bracket are disposed on one side of the paper feeding mechanism.
- the printing carriage and the rail beam and the bracket may also be directly disposed directly above the printing platform in the paper feeding mechanism.
- the direction of the rail beam on which the print carriage is mounted is parallel to the direction in which the cantilever of the printing platform is mounted.
- the present invention can also provide a plurality of printing carriages and rail beams and brackets directly above the paper feeding mechanism.
- Figure 5 is a flow chart showing a printing method of the ink jet printing apparatus of the present invention, which comprises ejecting ink droplets from a head mounted on a printing carriage, and illuminating the object to be printed by a curing device disposed at both ends of the printing carriage Ultraviolet light to cure the ink droplets to achieve printing, the carriage is relatively reciprocated relative to the object to be printed in a first direction, and the printing carriage is stepwise moved relative to the object to be printed in a second direction orthogonal to the first direction;
- the printing method comprises the following steps: in the first step S01, adjusting the second driving mechanism to make the distance between the plane of the nozzle on the printing carriage and the object to be printed is a distance suitable for printing; the second step S02, while the bracket is along the first
- the direction is opposite to the first object to be printed from one end to the other end, and the ink droplet is ejected from the print head to the first object to be printed on the first printing platform, and the ultraviolet light is i
- step S06 Two steps S02, third step S03 and fourth step S04 until the image is printed on the first object to be printed; in step S06, the paper feeding mechanism is rotated to supply the second object to be printed; repeating the second step S02, the third Step S03, fourth step S04 and fifth step S05 until the image is printed on the second object to be printed; in step S07, it is determined whether all the objects to be printed are printed, and if the printing is finished, the printing is ended; if not printing is finished Then, the second step S02, the third step S03, the fourth step S04, the fifth step S05, and the sixth step S06 are repeated until all the objects to be printed are printed.
- the first step S01 further includes the operator installing the first object to be printed to the eighth object to be printed on the first to eighth printing platforms.
- step S06 the paper feeding mechanism rotates to supply the second object to be printed, and the control system controls the printing carriage to return to the initial printing position in the second direction.
- the method further includes: when the paper feeding mechanism rotates and supplies the second object to be printed, the operator removes the first printed object to be printed on the first printing platform, and installs another unprinted object. The object to be printed.
- step S07 above after the printing is finished, the control system controls the printing carriage to return to the initial printing position in the second direction.
- Figure 6 is a flow chart showing another printing method of the ink jet printing apparatus of the present invention, the printing method comprising ejecting ink droplets by a printing head mounted on a printing carriage, and to be printed by a curing device disposed at both ends of the printing carriage
- the object irradiates ultraviolet rays to solidify the ink droplets to achieve printing, and the carriage moves relative to the object to be printed in a first direction relative to the object to be printed, and the printing carriage moves relative to the object to be printed in a second direction orthogonal to the first direction;
- the method comprises the following steps: first step S001, adjusting the second driving mechanism to make the distance between the plane of the nozzle on the printing carriage and the object to be printed is a distance suitable for printing; the second step S002, while the bracket is in the first direction Ejecting ink droplets from the print head to the first object to be printed on the first printing platform, and ejecting ultraviolet rays from the self-curing device to solidify the ink droplets with respect
- the printing carriage is opposite in the second direction in the state of one end.
- step S005 determining whether the image on the first image to be printed is printed, and if printing, entering the printing of the next object to be printed; if not printing, repeating the above Two steps S002, third step S003 and fourth step S004 until the image is printed on the first object to be printed; in step S006, the paper feeding mechanism is rotated to supply the second object to be printed; repeating the second step S002, the third Step S003, the fourth step S004, the fifth step S005 until the image is printed on the second object to be printed; the seventh step S007, determining whether all the objects to be printed are printed, if the printing is finished, the printing is ended; if not printing is finished Then, the second step S002, the third step S003, the fourth step S004, the fifth step S005, and the sixth step S006 are repeated until all the objects to be printed are printed.
- the operator further includes installing the first object to be printed to the eighth object to be printed on the first printing platform to the eighth printing platform.
- control system further controls the printing carriage to return to the initial printing position in the second direction while the paper feeding mechanism is rotated to supply the second object to be printed.
- the method further includes: when the paper feeding mechanism rotates and supplies the second object to be printed, the operator removes the first printed object to be printed on the first printing platform, and installs another unprinted object. The object to be printed.
- control system controls the printing carriage to return to the initial printing position in the second direction.
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Abstract
一种喷墨打印装置，包括一走纸机构（4），该走纸机构（4）以间歇旋转的方式供给待打印对象；一支架（2），用于安装打印小车（3），该支架（2）上设置第一驱动机构，该第一驱动机构用于驱动打印小车（3）沿与导轨梁（1）垂直的第二方向前后移动，并且该支架（2）基本以一恒定的速度沿与导轨梁（1）平行的第一方向左右移动；一打印小车（3），在该打印小车（3）上安装至少一个打印头；一控制系统，该控制系统用于控制走纸机构（4）、支架（2）、打印小车（3）和打印头的工作，实现了高精度宽幅打印，并同时实现同步上料、下料和打印，从而提高打印效率。
Description
本发明涉及一种喷墨打印装置及打印方法，具体说涉及一种多个打印平台间歇旋转供给待打印对象的喷墨打印装置及打印方法。
喷墨打印技术是指通过喷头将墨滴喷射于待打印对象上得到打印图像或文字的技术。该技术为非接触打印，具有打印速度快，污染小，能适应多种待打印对象等优点而广泛应用于工业应用领域。喷墨打印根据打印小车和待打印对象的运动方式分为扫描式（Scanning）喷墨打印和一次走纸成像（Onepass）喷墨打印两种，扫描式喷墨打印包括卷对卷式喷墨打印和平台式喷墨打印两种，其中卷对卷式喷墨打印在喷墨打印过程中打印小车沿导轨梁相对待打印对象来回运动，待打印对象沿垂直于打印小车运动方向的方向相对运动，安装打印小车的导轨梁静止不动；而平台喷墨打印在喷墨打印过程中有两种情况，一种是在喷墨打印过程中导轨梁不动，打印小车沿导轨梁来回运动，打印平台沿垂直于打印小车运动方向的方向相对运动；还有一种是打印平台静止不动，打印小车沿导轨梁相对于待打印对象来回运动，并且打印小车沿垂直于导轨梁的方向相对运动。而一次走纸成像喷墨打印在喷墨过程中打印小车静止不动，待打印对象单向高速运动。采用一次走纸成像喷墨打印对喷头的打印精度和打印宽度要求很高，喷头的打印精度需为图像的打印精度，且喷头的打印宽度需为图像的打印宽度，当然也通过拼插喷头的方式来获得高精度和通过串接喷头的方式来获得更宽的打印宽度，但这必然使得喷头的数量增加，无论是使用高精度的喷头还是通过多个喷头获得高打印精度这必然使得打印机的成本增高。
现有技术中多采用打印平台静止不动，打印小车沿导轨梁相对于打印介质往复移动，并且导轨梁沿垂直于导轨梁的方向相对移动的方式来进给打印介质和提高打印精度，然而采用这种方式由于导轨梁本身较重，相对来说其移动机构设计较复杂成本较高，且整机的体积较大。
针对现有技术存在的问题，本发明的目的在于提出一种结构简单，成本低，打印精度高，多个打印平台间歇旋转供给待打印对象的喷墨打印装置。
为实现所述目的，本发明提出一种喷墨打印装置包括一打印小车，在打印小车上安装至少一个打印头；一支架，该支架上设置一第一驱动机构，该第一驱动机构用于驱动打印小车沿与导轨梁垂直的第二方向前后移动，并且支架基本以一恒定的速度沿与导轨梁平行的第一方向左右移动；一走纸机构，该走纸机构以间歇旋转的方式给待打印对象；一控制系统，该控制系统控制走纸机构、支架、打印小车和打印头的工作。
上述喷墨打印装置中，支架和打印小车的运动方式为：支架以自第一方向上的一端移动至另一端，且自另一端返回到一端的方式相对于待打印对象进行相对移动，打印小车在一端的状态下沿第二方向相对于待打印对象进行相对移动。
上述喷墨打印装置中，支架和打印小车的运动方式还可以为：支架以自第一方向上的一端移动至另一端后，打印小车在另一端的状态下沿第二方向相对于待打印对象进行相对移动，然后支架沿第一方向自另一端相对于待打印对象移动至一端。
上述喷墨打印装置中，在支架上还设置一第二驱动机构，该第二驱动机构驱动打印小车沿垂直于打印介质所在平面的第三方向上下运动。
上述喷墨打印装置中，走纸机构包括至少两个安置待打印对象的打印平台、一底座和一第三驱动机构，多个打印平台沿圆周方向阵列设置在底座上，第三驱动机构驱动多个打印平台绕底座中心轴旋转。
上述喷墨打印装置中，打印平台通过旋臂与底座中心轴连接。
上述喷墨打印装置中，在打印小车的左右两端分别设置一固化装置，该固化装置由沿第二方向排列的多个LED灯构成。
本发明的另一目的在于提出一种喷墨打印方法，该喷墨打印方法由安装于打印小车上的打印头喷出墨滴，并由设置在打印小车两端的固化装置向待打印对象照射紫外线来使墨滴固化从而实现打印，支架沿第一方向相对于待打印对象进行相对往返运动，打印小车沿与第一方向正交的第二方向相对于待打印对象进行步进运动；多个打印平台绕底座中心轴间歇旋转，本发明的喷墨打印方法包括下述步骤：第一步，一边使支架沿第一方向相对于第一待打印对象从一端移动至另一端，一边自打印头向第一打印平台上的第一待打印对象喷射墨滴，且自固化装置中照射紫外线将墨滴固化；第二步，使打印小车在另一端的状态下沿第二方向相对于第一待打印对象进行相对移动；第三步，一边使支架沿第一方向相对于待打印对象从另一端移动一端，一边自打印头喷出的墨滴叠加于上述第一步中附着在第一打印平台上的第一待打印对象上的墨滴上，并且自固化装置中照射紫外线使墨滴固化；第四步，重复上述第一步、第二步和第三步直至在第一待打印对象上打印完图像；第五步，走纸机构旋转供给第二待打印对象；重复上述第一步、第二步、第三步、第四步直至在第二待打印对象上打印完图像；第六步，重复上述第一步、第二步、第三步、第四步、第五步直至将所有待打印对象打印完。
上述打印方法还包括在开始第一步之前通过调节第二驱动机构使打印小车上喷嘴所在平面与待打印对象之间的距离为适于打印的距离。
本发明的又一目的在于提出另一种喷墨打印方法，该喷墨打印方法包括下述步骤：第一步，一边使支架沿第一方向相对于第一待打印对象从一端移动至另一端，一边自打印头向第一打印平台上的第一待打印对象喷射墨滴，且自固化装置中照射紫外线将墨滴固化；第二步，一边使支架沿第一方向相对于第一待打印对象从另一端移动一端，一边自打印头喷出的墨滴叠加于上述第一步中附着在第一打印平台上的第一待打印对象上的墨滴上，并且自固化装置中照射紫外线使墨滴固化；第三步，使打印小车在一端的状态下沿第二方向相对于第一待打印对象进行步进运动；第四步，重复上述第一步、第二步和第三步直至在第一待打印对象上打印完图像；第五步，走纸机构旋转供给第二待打印对象；重复上述第一步、第二步、第三步、第四步直至在第二待打印对象上打印完图像；第六步，重复上述第一步、第二步、第三步、第四步、第五步直至将所有待打印对象打印完。
上述打印方法还包括在开始第一步之前通过调节第二驱动机构使打印小车上喷嘴所在平面与待打印对象之间的距离为适于打印的距离。
本发明的喷墨打印装置结构简单，通过打印小车沿第一方向和第二方向的运动可实现在平台上进行扫描式打印，采用较少的喷头即可实现高精度宽幅打印，本发明的喷墨打印装置的走纸机构以旋转式间歇供给待打印对象，能实现同步上料、下料和打印，提高打印效率。
图1为本发明喷墨打印装置的示意图；
图2为本发明喷墨打印装置中打印部分的立体图；
图3为本发明喷墨打印装置中打印小车安装在支架上的立体图；
图4为本发明喷墨打印装置中支架的立体图；
图5为本发明喷墨打印方法的流程图；
图6为本发明另一喷墨打印方法的流程图。
下面结合附图详细说明本发明的喷墨打印装置及喷墨打印方法。
如图1和图2所示，本发明中的喷墨打印装置包括打印小车3、导轨梁1、支架2、走纸机构4及控制系统（图中未视出）。导轨梁１包括横支架11和左支柱10a和右支柱10b。在横支架11上安装一驱动机构，该驱动机构用于驱动支架2在第一方向运动，驱动机构由设置在横支架11一端的伺服电机15和皮带12及左带轮13a和右带轮13b构成，左带轮13a和右带轮13b分别设置在横支架11的左右两端，其中左带轮13a与伺服电机15连接，皮带12连接左带轮13a和右带轮13b，由伺服电机15带动左带轮13a旋转从而带动皮带12运动。在横支架11上还安装有一光栅17用于定位打印小车在第一方向的运动位置。在横支架11上还安装有上导轨14b和下导轨14a，在支架2的背面安装有两滑块与上导轨14b和下导轨14a嵌合，从而支架2能够沿上导轨14b和下导轨14a在第一方向（左右方向）自如的进行往返运动。在横支架11上还安装一拖链板16及拖链18，拖链18一端与支架2连接，另一端安装在拖链板16上，拖链板16为凹槽结构，拖链18在该凹槽结构内来回运动。
打印小车3安装在支架2上，在打印小车3上安装包括用于喷射品红色（M）、黄色（Y）、青色（C）和黑色（K）墨水的打印头，每一色墨水的打印头至少为一个，为提高打印速度可以采用多个打印头打印同一色墨水。本发明的打印小车上还可以安装至少一个分别用打印白色（W）墨水和/或透明色（V）墨水的打印头。在打印小车3上可设置用于容纳墨水的墨盒及相应的负压控制系统。本发明的打印头使用的墨水为UV墨水。
在打印小车3的两端分别安装一固化装置32。本发明的固化装置由沿第二方向排列设置的多个用于照射紫外线的LED构成，本发明也可以在打印小车3的一端设置一固化装置，如在打印小车3的左端设置一固化装置，或者在打印小车3的右端设置一固化装置。
支架2安装在导轨梁1上，控制系统控制驱动机构驱动支架2沿第一方向（导轨梁所在方向，喷墨打印领域常说的X轴方向）作往复运动，并控制支架2上的第一驱动机构带动打印小车3沿第二方向（垂直导轨梁的方向，喷墨打印领域常说的Y轴方向）相对于待打印对象作步进运动，并在打印小车3运动的过程中控制安装于其上的打印头将墨滴喷射于待打印对象上。导轨梁1通过左支柱10a和右支柱10b安装在打印底座上，在导轨梁1上安装一伺服电机11，该伺服电机11通过皮带带轮12带动支架2从而带动安装于支架2上的打印小车3以一基本恒定的速度沿第一方向左右运动。
本发明一个实施例中的走纸机构4包括打印平台41-48、旋臂51-58、旋转中心轴6、第三驱动机构和底座（图中未视出），打印平台41-48成绕旋转中心轴6成圆周阵列设置，打印平台41-48用于安装待打印对象，打印平台41-48分别通过旋臂51-58连接在旋转中心轴6上。控制系统控制第三驱动机构驱动打印平台41-48间歇旋转以供给待打印对象。本发明的走纸机构也可以设置两个，三个，四个、五个、六个或者其它个数的打印平台。
如图3和图4所示，在支架2上设置有一第一驱动机构包括电机21和丝杆22、丝母23，电机21的输出端与丝杆22连接，丝杆22上安装丝母23，丝母23通过丝母座与打印小车3连接，在打印小车3的两侧各安装一滑块31，滑块31与设置在支架2两侧的导轨25配合，通过电机21带动丝杆22、丝母23转动从而带动打印小车3沿第二方向前后运动。
本发明中的支架2和打印小车3的运动方式为：支架2以自第一方向上的一端（图中右端）移动至另一端（图中左端），且自另一端返回到一端的方式相对于待打印对象进行相对移动，然后打印小车3在一端的状态下沿第二方向相对于待打印对象进行相对移动（由后往前运动）。
本发明中的支架2和打印小车3的运动方式还可以为：支架2以自第一方向上的一端移动至另一端后，打印小车3在另一端的状态下沿第二方向相对于待打印对象进行相对移动，然后支架2沿第一方向自另一端相对于待打印对象移动至一端。
在本发明的支架2上还可以设置一第二驱动机构用于驱动打印小车3沿第三方向（第三方向为与待打印对象所在平面垂直的方向，喷墨打印领域常说的Z轴方向）上下移动以适应不同厚度的待打印对象。
本发明一个实施例中打印小车及导轨梁和支架设置在走纸机构的一侧，本发明的实施例中打印小车及导轨梁和支架也可以直接设置在走纸机构中打印平台的正上方，使安装打印小车的导轨梁所在方向与安装打印平台的悬臂所在方向平行。为提高打印速度，本发明还可以在走纸机构的正上方设置多个打印小车及导轨梁和支架。
图5本发明的喷墨打印装置的一种打印方法的流程图，所述打印方法包括由安装于打印小车的喷头喷出墨滴，并由设置在打印小车两端的固化装置向待打印对象照射紫外线来使墨滴固化从而实现打印，支架沿第一方向相对于待打印对象进行相对往返移动，打印小车沿与第一方向正交的第二方向相对于待打印对象进行步进运动；所述打印方法包括下述步骤：第一步S01，调节第二驱动机构使打印小车上喷嘴所在平面与待打印对象之间的距离为适于打印的距离；第二步S02，一边使支架沿第一方向相对于第一待打印对象从一端移动至另一端，一边自打印头向第一打印平台上的第一待打印对象喷射墨滴，且自固化装置中照射紫外线将墨滴固化；第三步S03，使打印小车在另一端的状态下沿第二方向相对于第一待打印对象进行相对移动；第四步S04，一边使支架沿第一方向相对于待打印对象从另一端移动一端，一边自打印头喷出的墨滴叠加于上述第一步中附着在第一打印平台上的第一待打印对象上的墨滴上，并且自固化装置中照射紫外线使墨滴固化；第五步S05，判断第一待打印图像上的图像是否打印完，若打印完则进入下一待打印对象的打印；若未打印完，则重复上述第二步S02、第三步S03和第四步S04直至在第一待打印对象上打印完图像；第六步S06，走纸机构旋转供给第二待打印对象；重复上述第二步S02、第三步S03、第四步S04和第五步S05直至在第二待打印对象上打印完图像；第七步S07，判断是否所有待打印对象均打印完，若打印完则结束打印；若未打印完，则重复上述第二步S02、第三步S03、第四步S04、第五步S05和第六步S06直至将所有待打印对象打印完。
上述第一步S01中，还包括操作人员在第一打印平台至第八打印平台上安装第一待打印对象至第八待打印对象。
上述第六步S06中，还包括走纸机构旋转供给第二待打印对象的同时，控制系统控制打印小车沿第二方向退回至初始打印位置。
上述第六步中，还包括在走纸机构旋转供给第二待打印对象的同时，操作人员将第一打印平台上的已经打印完的第一待打印对象取下，并安装另一未打印的待打印对象。
上述第七步S07中，还包括结束打印后，控制系统控制打印小车沿第二方向退回至初始打印位置。
图6为本发明的喷墨打印装置的另一种打印方法的流程图，打印方法包括由安装于打印小车上的打印头喷出墨滴，并由设置在打印小车两端的固化装置向待打印对象照射紫外线来使墨滴固化从而实现打印，支架沿第一方向相对于待打印对象进行相对往返移动，打印小车沿与第一方向正交的第二方向相对于待打印对象进行相对移动；打印方法包括下述步骤：第一步S001，调节第二驱动机构使打印小车上喷嘴所在平面与待打印对象之间的距离为适于打印的距离；第二步S002，一边使支架沿第一方向相对于第一待打印对象从一端移动至另一端，一边自打印头向第一打印平台上的第一待打印对象喷射墨滴，且自固化装置中照射紫外线将墨滴固化；第三步S003，一边使支架沿第一方向相对于待打印对象从另一端移动一端，一边自打印头喷出的墨滴叠加于上述第一步中附着在第一打印平台上的第一待打印对象上的墨滴上，并且自固化装置中照射紫外线使墨滴固化；第四步S004，使打印小车在一端的状态下沿第二方向相对于第一待打印对象进行相对移动；第五步S005，判断第一待打印图像上的图像是否打印完，若打印完则进入下一待打印对象的打印；若未打印完，则重复上述第二步S002、第三步S003和第四步S004直至在第一待打印对象上打印完图像；第六步S006，走纸机构旋转供给第二待打印对象；重复上述第二步S002、第三步S003、第四步S004、第五步S005直至在第二待打印对象上打印完图像；第七步S007，判断是否所有待打印对象均打印完，若打印完则结束打印；若未打印完，则重复上述第二步S002、第三步S003、第四步S004、第五步S005、第六步S006直至将所有待打印对象打印完。
上述第一步中，还包括操作人员在第一打印平台至第八打印平台上安装第一待打印对象至第八待打印对象。
上述第六步中，还包括在走纸机构旋转供给第二待打印对象的同时，控制系统控制打印小车沿第二方向退回至初始打印位置。
上述第六步中，还包括在走纸机构旋转供给第二待打印对象的同时，操作人员将第一打印平台上的已经打印完的第一待打印对象取下，并安装另一未打印的待打印对象。
上述第七步中，还包括结束打印后，控制系统控制打印小车沿第二方向退回至初始打印位置。
需要指出的是根据本发明的具体实施方式所作的任何变形，均不脱离本发明的精神以及权利要求记载的范围。
Claims (9)
- 一种喷墨打印装置，包括：一打印小车，所述打印小车上安装至少一个打印头；一支架，所述支架上设置一第一驱动机构，所述第一驱动机构用于驱动所述打印小车沿与导轨梁垂直的第二方向前后移动，并且所述支架基本以一恒定的速度沿与导轨梁平行的第一方向左右移动；一走纸机构，所述走纸机构以间歇旋转的方式供给待打印对象；一控制系统，所述控制系统控制所述走纸机构、所述支架、所述打印小车和所述打印头的工作。
- 如权利要求1所述的喷墨打印装置，其特征在于，所述支架以自所述第一方向上的一端移动至另一端，且自所述另一端返回到所述一端的方式相对于待打印对象进行相对移动，所述打印小车在所述一端的状态下沿所述第二方向相对于待打印对象进行相对移动。
- 如权利要求1所述的喷墨打印装置，其特征在于，所述支架以自所述第一方向上的所述一端移动至所述另一端后，所述打印小车在所述另一端的状态下沿所述第二方向相对于待打印对象进行相对移动，然后所述支架沿所述第一方向自所述另一端相对于待打印对象移动至所述一端。
- 如权利要求1所述的喷墨打印装置，其特征在于，所述支架上还设置一第二驱动机构，所述第二驱动机构驱动打印小车沿垂直于打印介质所在平面的第三方向上下运动。
- 如权利要求1所述的喷墨打印装置，其特征在于，所述走纸机构包括至少用于两个安置待打印对象的打印平台、一底座和一第三驱动机构，所述打印平台沿圆周方向阵列设置在所述底座上，所述第三驱动机构驱动所述打印平台绕底座中心轴旋转。
- 如权利要求5所述的喷墨打印装置，其特征在于，所述打印平台通过旋臂与底座中心轴连接。
- 如权利要求1所述的喷墨打印装置，其特征在于，在所述打印小车的左右两端分别设置一固化装置。
- 根据权利要求1-7中任意一项所述喷墨打印装置的打印方法，其特征在于，所述打印方法由安装于所述打印小车上的打印头喷出墨滴，并由设置在所述打印小车两端的固化装置向待打印对象照射紫外线来使墨滴固化从而实现打印，所述支架沿所述第一方向相对于待打印对象进行相对往返移动，所述打印小车沿与所述第一方向正交的第二方向相对于待打印对象进行相对移动；所述打印平台绕其底座中心轴间歇旋转以供给待打印对象，所述打印方法包括下述步骤：第一步，一边使所述支架沿第一方向相对于第一待打印对象从所述一端移动至所述另一端，一边自所述打印头向第一打印平台上的第一待打印对象喷射墨滴，且自所述固化装置中照射紫外线将墨滴固化；第二步，使所述打印小车在所述另一端的状态下沿所述第二方向相对于第一待打印对象进行相对移动；第三步，一边使所述支架沿所述第一方向相对于待打印对象从所述另一端移动所述一端，一边自所述打印头喷出的墨滴叠加于上述第一步中附着在第一打印平台上的第一待打印对象上的墨滴上，并且自所述固化装置中照射紫外线使墨滴固化；第四步，重复上述第一步、第二步和第三步直至在第一待打印对象上打印完图像；第五步，一边使所述走纸机构旋转供给下一待打印对象，一边使所述打印小车回到所述第二方向的初始位置；然后重复上述第一步、第二步、第三步、第四步直至在第二待打印对象上打印完图像；第六步，重复上述第一步至第五步直至将所有待打印对象打印完。
- 根据权利要求1-7中任意一项所述喷墨打印装置的打印方法，其特征在于，所述打印方法由安装于所述打印小车上的打印头喷出墨滴，并由设置在所述打印小车两端的固化装置向待打印对象照射紫外线来使墨滴固化从而实现打印，所述支架沿所述第一方向相对于待打印对象进行相对往返移动，所述打印小车沿与所述第一方向正交的第二方向相对于待打印对象进行相对移动；所述打印平台绕其底座中心轴间歇旋转以供给待打印对象，所述打印方法包括下述步骤：第一步，一边使所述支架沿第一方向相对于第一待打印对象从所述一端移动至所述另一端，一边自所述打印头向第一打印平台上的第一待打印对象喷射墨滴，且自所述固化装置中照射紫外线将墨滴固化；第二步，一边使所述支架沿所述第一方向相对于第一待打印对象从所述另一端移动所述一端，一边自所述打印头喷出的墨滴叠加于上述第一步中附着在第一打印平台上的第一待打印对象上的墨滴上，并且自所述固化装置中照射紫外线使墨滴固化；第三步，使所述打印小车在所述一端的状态下沿所述第二方向相对于第一待打印对象进行相对移动；第四步，重复上述第一步、第二步和第三步直至在第一待打印对象上打印完图像；第五步，一边使所述走纸机构旋转供给第二待打印对象，一边使所述打印小车沿所述第二方向回到打印前初始位置，然后重复上述第一步、第二步、第三步、第四步直至在第二待打印对象上打印完图像；第六步，重复上述第一步至第五步直至将所有待打印对象打印完。
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| CN106585097A (zh) * | 2016-11-05 | 2017-04-26 | 童舟 | 数码喷印系统 |
| TWI628069B (zh) * | 2016-04-22 | 2018-07-01 | 亞美科科技股份有限公司 | 噴墨列印裝置及列印方法 |
| CN109421387A (zh) * | 2017-09-04 | 2019-03-05 | 克朗斯股份公司 | 用于对容器直接打印的打印机 |
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| JP6390240B2 (ja) * | 2014-07-25 | 2018-09-19 | セイコーエプソン株式会社 | 記録装置 |
| CN109572207B (zh) * | 2018-10-31 | 2020-08-04 | 重庆宏劲印务有限责任公司 | 一种光油喷涂形式在瓶体上打印立体图案的装置和方法 |
| CN110481169B (zh) * | 2019-08-30 | 2024-05-07 | 北京亚美科软件有限公司 | 喷墨打印机用信号选择板及信号选择方法 |
| CN111806097A (zh) * | 2020-07-21 | 2020-10-23 | 北京美科艺数码科技发展有限公司 | 一种喷墨打印装置及其翻面模式打印方法 |
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