WO2020134256A1 - 喷墨打印设备及其清洁方法 - Google Patents
喷墨打印设备及其清洁方法 Download PDFInfo
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- WO2020134256A1 WO2020134256A1 PCT/CN2019/108441 CN2019108441W WO2020134256A1 WO 2020134256 A1 WO2020134256 A1 WO 2020134256A1 CN 2019108441 W CN2019108441 W CN 2019108441W WO 2020134256 A1 WO2020134256 A1 WO 2020134256A1
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- WO
- WIPO (PCT)
- Prior art keywords
- solvent
- ink
- injection hole
- inkjet printing
- print head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
-
- 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
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
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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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/17—Cleaning arrangements
Definitions
- the present application belongs to the technical field of printers, and more particularly, to an inkjet printing device and a cleaning method thereof.
- An inkjet printing system generally includes a print head with one or more nozzle holes, and the ink is ejected from the nozzle holes in the form of ink droplets, and finally deposited on the corresponding position of the substrate to form a pre-designed pattern.
- the ink is likely to infiltrate, flow or overflow on the surface of the print head.
- the ink remaining on the surface of the print head is more likely to dry out, resulting in solutes in the print head
- Precipitation on the surface can easily lead to blockage of the nozzle holes, resulting in problems such as no ink ejection from the nozzle holes or changes in the size of the ink droplets, smearing, and deviation in the flight direction, which reduces the stability of ink printing and greatly affects the print quality. Therefore, in order to maintain good print quality, it is necessary to clean the ink remaining on the surface of the print head, especially the dried ink residue.
- the surface of the print head is generally wiped by using a dry and clean wiping cloth to remove the remaining ink around, but this method cannot effectively remove the dried residue.
- the ink on the surface of the print head during inkjet printing Residues are easy to block, affecting printing efficiency and quality.
- One of the objectives of the embodiments of the present application is to provide an inkjet printing device and a cleaning method thereof, to solve the problem that the printhead surface cannot be effectively cleaned during the use of the inkjet printing device in the prior art. Printing efficiency and quality issues.
- an inkjet printing device including:
- a solvent storage container the solvent storage container is used to store a solvent that can dissolve ink residues; and [0010] a print head, the print head is provided on the surface of the ink storage container respectively At least one ink ejection hole and at least one solvent ejection hole connected to the liquid end and the outlet end pipeline of the solvent storage container, and the solvent ejection hole is arranged at an edge of the ink ejection hole.
- a method for cleaning an inkjet printing device includes an ink storage container, a solvent storage container, and a print head. At least one ink injection hole and at least one solvent injection hole connected to the outlet end of the ink storage container and the outlet end of the solvent storage container, the solvent injection hole is arranged at an edge of the ink injection hole ;
- the cleaning method includes:
- the discharge end of the solvent storage container is opened to extrude the solvent through the solvent spray hole and hang on the surface of the print head to be wiped.
- the beneficial effect of the cleaning method of the inkjet printing device is that: the solvent sprayed by the solvent spray hole first wets the surface of the print head, and it is easy to dissolve the ink precipitates adhering to the surface of the print head, It is beneficial to take away when wiping, so that the print head is effectively cleaned, and the printing efficiency and quality are improved.
- FIG. 1 is a schematic structural diagram of an inkjet printing apparatus according to a first embodiment of the present application
- FIG. 2 is a schematic structural diagram of an inkjet printing apparatus according to a second embodiment of the present application.
- FIG. 3 is a schematic structural diagram of an inkjet printing apparatus according to a third embodiment of the present application.
- FIG. 4 is a schematic structural diagram of a first type of nozzle hole distribution provided by an embodiment of the present application.
- FIG. 5 is a schematic structural diagram of a second type of nozzle hole distribution provided by an embodiment of the present application.
- FIGS. 6(A) and 6(B) are schematic structural diagrams of third and four types of nozzle hole distributions provided by the embodiments of the present application;
- FIG. 7 is an inkjet printing provided by the first embodiment of the present application Flow chart of equipment cleaning method;
- FIG. 8 is a flowchart of a cleaning method of an inkjet printing apparatus according to a second embodiment of the present application.
- first and second are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
- the features defined as “first” and “second” may explicitly or implicitly include one or more of the features.
- the meaning of “plurality” is two or more, unless otherwise specifically limited.
- the inkjet printing apparatus includes an ink reservoir 101, a solvent reservoir 102, and a print head 110.
- the ink storage container 101 is used to store ink
- the solvent storage container 102 is used to store a solvent that can dissolve ink residues
- the other end (ie, liquid discharge) of the ink storage container 101 is opened on the surface of the print head 110 End) and the other end of the solvent storage container 102 (that is, the liquid discharge end) at least one ink injection hole 201 and at least one solvent injection hole 202 connected to the pipeline for ejecting ink for normal printing
- the solvent injection hole 202 is arranged in the ink jet The edge of the hole 201.
- Solvent spray hole 202 is used to provide solvent to dissolve the dried ink residue around to be wiped
- the inkjet printing apparatus further includes a positive and negative pressure generator 13 and a positive and negative pressure generator 13 for storing the ink storage container 101 and the solvent.
- the liquid container 102 provides positive and negative pressure.
- One end of the ink storage container 101 is connected to the pipeline of the positive and negative pressure generator 13; one end of the solvent storage container 102 is connected to the pipeline of the positive and negative pressure generator 13.
- the positive and negative pressure generator 13 is used to apply positive pressure to the ink reservoir 101 through the pipeline so that the ink is ejected/extruded through the ink ejection hole 201.
- the positive and negative pressure generator is used 13 Negative pressure is applied to the ink reservoir 101 through the pipe to stop the ink from being discharged.
- the positive and negative pressure generator 13 is used to apply positive pressure to the solvent storage container 102 through the pipeline so that the solvent is extruded through the solvent injection hole 202, and the positive and negative pressure generator 13 is used to apply negative pressure to one end of the solvent storage container 102.
- the solvent extruded from the solvent injection hole 202 is suspended on the surface of the print head 110, the surface of the print head 110 is moistened to dissolve the dried ink residue around, and the solvent can be taken away by manually or automatically wiping the surface of the print head 110 with a wiping cloth As well as the dissolved ink residue, the purpose of cleaning the surface of the print head 110 is achieved.
- the other end of the ink reservoir 101 is connected to the ink ejection hole 201 through a first solenoid valve 11 i, and the other end of the solvent reservoir 102 is passed through a second solenoid valve 112 Connected to the solvent injection hole 202.
- the positive and negative pressure generator 13 includes a positive pressure generator 131 and a negative pressure generator 132, one end of the ink reservoir 101 is connected to the positive pressure generator 131 and the negative pressure generator 132, The other end of the solvent storage container 102 is pipe-connected to the positive pressure generator 131 and the negative pressure generator 132.
- the positive pressure generator 131 and the negative pressure generator 132 may be two independent components, or they may be integrated to provide a positive and negative pressure generating device that provides positive pressure and/or negative pressure at the same time.
- the positive pressure generator 131 is used to drive the liquid to be ejected from the spray hole, and the negative pressure generator 132 is used to apply a negative pressure to the pipeline to counteract the gravity of the liquid itself so that the liquid does not drip.
- one end of the ink reservoir 101 is connected to the negative pressure generator 132 through the third solenoid valve 114, and one end of the ink reservoir 101 is also connected to the positive through the fourth solenoid valve 113
- the pressure generator 131 is connected.
- One end of the solvent storage container 102 is connected to the negative pressure generator 132 through a fifth solenoid valve 116, and one end of the solvent storage container 102 is also connected to the positive pressure generator 131 through a sixth solenoid valve 115.
- the inkjet printing apparatus further includes a wiping device with a wiping cloth 141 14.
- the wiping device 14 can be used to automatically wipe the surface of the print head 110.
- the wiping cloth 141 is disposed opposite to the surface of the print head 110, and the wiping device 14 is used to move the wiping cloth 141 relative to the surface of the print head 110 in a preset direction to wipe the solvent and ink residue on the surface of the print head 110; and/or the print head 110 causes its surface to frictionally move with the wiping cloth 141 in a preset direction to wipe the solvent and ink residue on the surface of the print head 110.
- the wiping timing may be that the solvent dissolves the dried ink residue around and wipes, and when the dissolution process of the ink residue is relatively fast, it can be wiped immediately when the solvent is squeezed out and adheres to the surface of the print head 110, to Improve work efficiency.
- a plurality of ink jetting holes 201 and a plurality of solvent jetting holes 202 are arranged in an array, and the periphery of each ink jetting hole 201 There are at least two oppositely arranged solvent injection holes 202. Please refer to Figs. 4, 5, 6(A) and 6(B), which show four different arrangements of the ink injection holes 201 and the solvent injection holes 202, respectively.
- a plurality of ink injection holes 201 are arranged on the surface of the print head 110 at intervals in the first direction x to form an ink injection hole row 11; a plurality of solvent injection holes 202 are divided into two columns, respectively
- the first solvent injection hole row 21 and the second solvent injection hole row 22 the holes of the first solvent injection hole row 21 are arranged at intervals in the direction parallel to the first direction x, and the holes of the second solvent injection hole row 22 Arranged at intervals in a direction parallel to the first direction x, the ink ejection hole array 11 is located between the first solvent ejection hole array 21 and the second solvent ejection hole array 22.
- each hole in the first solvent injection hole row 21 corresponds to each ink injection hole 201, and the center is aligned; each hole in the second solvent injection hole row 22 corresponds to each ink injection hole 201, and the center The misalignment is relative.
- the center of each hole in the second solvent ejection hole array 22 is located on the midline of the line connecting two adjacent ink ejection holes 201, that is, the two adjacent ink ejection holes 201 are relatively adjacent to each other.
- the solvent injection holes 202 in the second solvent injection hole row 22 are symmetrical in center
- the direction in which the surface of the print head 110 is wiped with the wiping cloth 141 may be wiped in the first direction x or in the opposite direction.
- FIG. 5 shows that a plurality of ink injection holes 201 are arranged on the surface of the print head 110 at intervals in the first direction x to form an ink injection hole row 11; a plurality of solvent injection holes 202 are divided into three rows, respectively:
- the holes of the hole row 22 are parallel to the first direction x Arranged at intervals, the ink injection hole array 11 is located between the first solvent injection hole array 21 and the second solvent injection hole array 22, and the holes in the third solvent injection hole array 23 are arranged at intervals in a direction parallel to the first direction x, And each hole in the third solvent ejection hole row 23 is located in the middle of the gap between two adjacent ink ejection holes 201 respectively.
- the center of the solvent injection hole 202 in the first solvent injection hole row 21, the center of the corresponding solvent injection hole 202 in the second solvent injection hole row 22, and the center of the corresponding ink injection hole 201 are located at The first direction x is perpendicular to the second direction y.
- the direction in which the surface of the print head 110 is wiped with the wiping cloth 141 may be wiped in the first direction x or the opposite direction, or may be wiped in the second direction y or the opposite direction .
- FIGS. 6(A) and 6(B) show two different ways of arranging the ink injection holes 201 and the solvent injection holes 202 in a matrix form. Wipe in any direction. Other spray hole layout methods will not be described one by one, and their specific implementation process can be set differently according to actual needs.
- the distance setting is 0.01-0.05 inch.
- the diameter of the ink injection hole 201 is 10-30 um.
- the diameter of the solvent injection hole 202 is 100-500um. In some embodiments, the distance between the solvent orifice 202 and the ink orifice 201 is 0.02-0.2 inch.
- the solvent stored in the solvent storage container 102 is a solvent of the same or similar type of ink stored in the ink storage container 101.
- the solvent in the solvent storage container 102 may be an alcoholic solvent such as ethanol, ethylene glycol, n-hexanol, or alcohol ether Solvents such as glycol ether and other solvents.
- the solvent in the solvent reservoir 102 may be a long-chain alkane solvent such as n-hexane, or an aromatic hydrocarbon solvent such as toluene , Or halogenated aromatic hydrocarbon solvents such as bromobenzene iodobenzene and other organic solvents.
- a long-chain alkane solvent such as n-hexane
- an aromatic hydrocarbon solvent such as toluene
- halogenated aromatic hydrocarbon solvents such as bromobenzene iodobenzene and other organic solvents.
- an embodiment of the present application also provides a cleaning method based on the above inkjet printing device, the cleaning method includes:
- Step S12 the liquid outlet of the ink storage container is turned off.
- the positive and negative pressure generator 13 or the piston mechanism may be used to generate negative pressure to close the outlet of the ink storage container 101, or may be used in the ink storage container 101.
- the pipeline valve at the discharge end is closed.
- Step S14 Open the outlet end of the solvent storage container to extrude the solvent through the solvent spray hole and hang it on the surface of the print head to be wiped.
- the positive and negative pressure generator 13 or the piston mechanism may be used to generate positive pressure to open the outlet end of the solvent storage container 102, or may be used in the solvent storage container 102.
- the pipeline valve at the outlet end is opened, and then the solvent is extruded through the solvent injection hole 202 by applying positive pressure.
- the squeezed solvent hangs on the surface of the print head to dissolve the surrounding dry ink residues to be wiped manually or automatically.
- the cleaning method includes, closing the first solenoid valve 111, the third solenoid valve 114, the fourth solenoid valve 113, at this time both ends of the ink reservoir 101 are closed, Ink does not work.
- the second solenoid valve 112 and the sixth solenoid valve 115 are opened, and the solvent is extruded through the solvent spray hole 201 under the action of the positive pressure generator 132, and then the sixth solenoid valve 115 is immediately closed and the fifth solenoid valve 116 is opened.
- the squeezed solvent is hung on the print head surface 200 by the negative pressure generator 131 without dripping.
- the solvent hanging on the print head surface 200 gradually dissolves the dried ink residues around, and then wiped with a dry and clean wiping cloth to take away the solvent and the dissolved ink residues from the print head surface 200 to achieve the cleaning of the print head surface 200 purpose.
- the cleaning method includes:
- Step S22 Turn off the discharge end of the ink storage container.
- Step S24 opening the discharge end of the solvent storage container so that the solvent is extruded through the solvent spray hole and hung on the surface of the print head to be wiped;
- Step S26 driving a wiping device having a wiping cloth to make the wiping cloth move in a frictional direction with the surface of the print head in a preset direction to wipe the solvent and ink residue on the surface of the print head; and/or drive
- the printing head causes its surface to frictionally move with the wiping cloth in a preset direction to wipe the solvent and ink residue on the surface of the printing head, wherein the wiping cloth is disposed opposite to the surface of the printing head. That is, the surfaces of the wiping cloth 141 and the printing head 110 make relative frictional movements separately or simultaneously, so that the wiping cloth 141 wipes the surface of the printing head 110.
- FIG. 3 that is, the surfaces of the wiping cloth 141 and the print head 110 make relative friction motions separately or simultaneously, so that the wiping cloth 141 wipes the surface of the print head 110.
- Figure 5 6(A) and 6(B) are described in the specific embodiments.
- the inkjet printing apparatus provided in the embodiments of the present application can also be used for normal printing, and the normal printing includes the following steps:
- the second solenoid valve 112, the fourth solenoid valve 113, the fifth solenoid valve 116, and the sixth solenoid valve 115 are closed, and the first solenoid valve 111 and the third solenoid valve 114 are opened. Both ends of the liquid container 102 are closed, and the solvent does not work.
- the upper end of the ink storage container 101 communicates with the negative pressure generator 131, and the lower end communicates with the ink ejection hole 201. Under the command operation of the operating system, (adjust the negative pressure generator 131 (Pressure)
- the ink is ejected from the ink ejection holes 201 in the form of ink droplets to provide normal printing.
Landscapes
- Ink Jet (AREA)
Abstract
一种喷墨打印设备,其包括墨水储液容器(101)、溶剂储液容器(102)以及打印头(110),打印头(110)表面上开设有分别与墨水储液容器(101)的出液端和溶剂储液容器(102)的出液端管道连接的至少一个墨水喷孔(201)和至少一个溶剂喷孔(202),溶剂喷孔(202)布置于墨水喷孔(201)的边缘。利用溶剂喷孔(202)喷出的溶剂先将打印头(110)表面进行润湿,容易将打印头(110)表面附着的墨水析出物溶解,有利于在擦拭时带走,使得打印头(110)有效清洁,提高打印效率和质量。
Description
喷墨打印设备及其清洁方法
[0001] 本申请要求于 2018年 12月 29日在中国专利局提交的、 申请号为 201811632912.5
、 发明名称为“喷墨打印设备及其清洁方法”的中国专利申请的优先权, 其全部内 容通过引用结合在本申请中。
技术领域
[0002] 本申请属于打印机技术领域, 更具体地说, 是涉及一种喷墨打印设备及其清洁 方法。
背景技术
[0003] 喷墨打印系统通常包括带有一个或者多个喷孔的打印头, 墨水从喷孔中以墨滴 的形式喷出, 最终沉积在承印物的相应位置, 形成预先设计的图案。 在墨滴的 形成过程中, 墨水容易在打印头表面处发生浸润、 流淌或溢出, 而对于溶剂沸 点较低的墨水来说, 打印头表面残留的墨水更容易变干, 从而导致溶质在打印 头表面处析出, 进而易导致喷孔的阻塞, 造成喷孔不出墨或者墨滴尺寸变化、 拖尾、 飞行方向偏移等问题, 降低了墨水打印稳定性, 大大影响打印质量。 因 此, 为了保持良好的打印质量, 必须要对打印头表面残留的墨水特别是已经干 燥的墨水残留物进行清洁。
[0004] 目前一般是通过使用干燥洁净的擦拭布对打印头表面进行擦拭, 除去周围残留 的墨水, 但是这种方式对于已经干燥的残留物无法进行有效的去除, 喷墨打印 时打印头表面墨水残留易阻塞、 影响打印效率和质量。
发明概述
技术问题
[0005] 本申请实施例的目的之一在于: 提供一种喷墨打印设备及其清洁方法, 以解决 5见有技术中存在的喷墨打印设备的使用过程中打印头表面无法有效清洁, 影响 打印效率和质量的问题。
问题的解决方案
技术解决方案
[0006] 为解决上述技术问题, 本申请实施例采用的技术方案是:
[0007] 第一方面, 提供了一种喷墨打印设备, 其包括:
[0008] 墨水储液容器;
[0009] 溶剂储液容器, 所述溶剂储液容器用于存储能溶解墨水残留物的溶剂; 以及 [0010] 打印头, 所述打印头表面上开设有分别与所述墨水储液容器的出液端和所述溶 剂储液容器的出液端管道连接的至少一个墨水喷孔和至少一个溶剂喷孔, 所述 溶剂喷孔布置于所述墨水喷孔的边缘。
[0011] 第二方面, 提供了一种喷墨打印设备的清洁方法, 所述喷墨打印设备包括墨水 储液容器、 溶剂储液容器、 以及打印头, 所述打印头表面上开设有分别与所述 墨水储液容器的出液端和所述溶剂储液容器的出液端管道连接的至少一个墨水 喷孔和至少一个溶剂喷孔, 所述溶剂喷孔布置于所述墨水喷孔的边缘;
[0012] 所述清洁方法包括:
[0013] 关断所述墨水储液容器的出液端;
[0014] 开通所述溶剂储液容器的出液端使溶剂通过溶剂喷孔挤出并悬挂在所述打印头 表面以待擦拭。
[0015] 本申请实施例提供的喷墨打印设备的清洁方法的有益效果在于: 利用溶剂喷孔 喷出的溶剂先将打印头表面进行润湿, 容易将打印头表面附着的墨水析出物溶 解, 有利于在擦拭时带走, 使得打印头有效清洁, 提高打印效率和质量。
发明的有益效果
对附图的简要说明
附图说明
[0016] 图 1为本申请第一实施例提供的喷墨打印设备的结构示意图;
[0017] 图 2为本申请第二实施例提供的喷墨打印设备的结构示意图;
[0018] 图 3为本申请第三实施例提供的喷墨打印设备的结构示意图;
[0019] 图 4为本申请实施例提供的第一种喷孔分布的结构示意图;
[0020] 图 5为本申请实施例提供的第二种喷孔分布的结构示意图;
[0021] 图 6(A)、 6(B)分别为本申请实施例提供的第三、 四种喷孔分布的结构示意图; [0022] 图 7为本申请第一实施例提供的喷墨打印设备的清洁方法的流程图;
[0023] 图 8为本申请第二实施例提供的喷墨打印设备的清洁方法的流程图。 发明实施例
本发明的实施方式
[0024] 为了使本申请的目的、 技术方案及优点更加清楚明白, 以下结合附图及实施例 , 对本申请进行进一步详细说明。 应当理解, 此处所描述的具体实施例仅用以 解释本申请, 并不用于限定本申请。
[0025] 需要说明的是, 当元件被称为“固定于”或“设置于”另一个元件, 它可以直接在 另一个元件上或者间接在该另一个元件上。 当一个元件被称为是“连接于”另一个 元件, 它可以是直接连接到另一个元件或间接连接至该另一个元件上。
[0026] 需要理解的是, 术语“长度”、 “宽度”、 “上”、 “下”、 “前”、 “后”、 “左”、 “右”、 “竖直”、 “水平”、 “顶”、 “底”“内”、 “外”等指示的方位或位置关系为基于附图所 示的方位或位置关系, 仅是为了便于描述本申请和简化描述, 而不是指示或暗 示所指的装置或元件必须具有特定的方位、 以特定的方位构造和操作, 因此不 能理解为对本申请的限制。
[0027] 此外, 术语“第一”、 “第二”仅用于描述目的, 而不能理解为指示或暗示相对重 要性或者隐含指明所指示的技术特征的数量。 由此, 限定有“第一”、 “第二”的特 征可以明示或者隐含地包括一个或者更多个该特征。 在本申请的描述中, “多个” 的含义是两个或两个以上, 除非另有明确具体的限定。
[0028] 请参阅图 1, 现对本申请提供的喷墨打印设备进行说明。 所述喷墨打印设备包 括墨水储液容器 101、 溶剂储液容器 102及打印头 110。
[0029] 墨水储液容器 101用于存储墨水, 溶剂储液容器 102用于存储能溶解墨水残留物 的溶剂, 打印头 110表面上开设有分别与墨水储液容器 101的另一端 (即出液端 ) 和溶剂储液容器 102的另一端 (即出液端) 管道连接的至少一个用以喷射墨水 以正常打印的墨水喷孔 201和至少一个溶剂喷孔 202 , 溶剂喷孔 202布置于墨水喷 孔 201的边缘。 溶剂喷孔 202用于提供溶剂溶解周围干燥的墨水残留物以待擦拭
[0030] 请参阅图 2, 在一个可选的实施例中, 所述喷墨打印设备还包括正负压发生器 1 3 , 正负压发生器 13用于给墨水储液容器 101和溶剂储液容器 102提供正、 负压。
墨水储液容器 101的一端与正负压发生器 13管道连接; 溶剂储液容器 102的一端 与正负压发生器 13管道连接。
[0031] 本实施例中, 利用正负压发生器 13通过管道对墨水储液容器 101施加正压使得 墨水通过墨水喷孔 201中喷出 /挤出以事实打印过程, 利用正负压发生器 13通过管 道对墨水储液容器 101施加负压使得墨水停止喷出。 另外, 利用正负压发生器 13 通过管道对溶剂储液容器 102施加正压使得溶剂通过溶剂喷孔 202中挤出, 利用 正负压发生器 13给溶剂储液容器 102的一端加载负压, 使得溶剂喷孔 202挤出的 溶剂悬挂在所述打印头 110表面, 将打印头 110表面润湿以溶解周围干燥的墨水 残留物, 使用擦拭布手动或自动擦拭打印头 110表面即可带走溶剂以及被溶解的 墨水残留物, 达到清洁打印头 110表面的目的。
[0032] 在其他实施方式中, 可以使用在为管状的墨水储液容器 101和溶剂储液容器 102 中设置连杆、 活塞等机构以驱动墨水储液容器 101和溶剂储液容器 102中的液体
[0033] 请参阅图 3, 在一些实施方式中, 墨水储液容器 101的另一端通过第一电磁阀 11 i与墨水喷孔 201相连, 溶剂储液容器 102的另一端通过第二电磁阀 112与溶剂喷 孔 202相连。
[0034] 在一些实施方式中, 正负压发生器 13包括正压发生器 131和负压发生器 132, 墨 水储液容器 101的一端与正压发生器 131和负压发生器 132管道连接, 溶剂储液容 器 102的另一端与正压发生器 131和负压发生器 132管道连接。 可以理解的是, 正 压发生器 131和负压发生器 132可以为两个相互独立的部件, 也可以是两者一体 可以提供同时提供正压和 /或负压的正负压发生设备。 正压发生器 131用于驱动液 体从喷孔中喷出, 负压发生器 132用于给管道施以一负压, 抵消液体自身重力, 使液体不滴落。
[0035] 请参阅图 3, 本实施例中, 墨水储液容器 101的一端通过第三电磁阀 114与负压 发生器 132相连, 墨水储液容器 101的一端还通过第四电磁阀 113与正压发生器 13 1相连。 溶剂储液容器 102的一端通过第五电磁阀 116与负压发生器 132相连, 溶 剂储液容器 102的一端还通过第六电磁阀 115与所述正压发生器 131相连。
[0036] 请参阅图 3, 在一些实施例中, 喷墨打印设备还包括具有擦拭布 141的擦拭装置
14, 擦拭装置 14可用于自动擦拭打印头 110表面。 擦拭布 141与打印头 110表面相 对设置, 擦拭装置 14用于使擦拭布 141按预设方向与打印头 110表面相对摩擦运 动以擦拭打印头 110表面的溶剂和墨水残留物; 和 /或打印头 110使其表面按预设 方向与擦拭布 141相对摩擦运动以擦拭打印头 110表面的溶剂和墨水残留物。 即 擦拭布 141和打印头 110的表面分别或同时作相对摩擦运动, 使擦拭布 141擦拭打 印头 110表面。 其中, 擦拭的时机可以是溶剂溶解周围干燥的墨水残留物后擦拭 , 而当墨水残留物的溶解过程比较快时, 可以在有溶剂被挤出并附着在打印头 1 10表面时立即擦拭, 以提高工作效率。
[0037] 墨水喷孔 201和溶剂喷孔 202为两个以上 (视为多个) 时, 多个墨水喷孔 201和 多个溶剂喷孔 202阵列排布, 且每个墨水喷孔 201的周边至少有两个相对布置的 溶剂喷孔 202。 请参阅图 4、 5、 6(A)及 6(B), 分别示出了四种不同的墨水喷孔 201 和溶剂喷孔 202排列方式。
[0038] 请参阅图 4, 示出的是多个墨水喷孔 201在打印头 110表面按第一方向 x间隔排列 形成墨水喷孔列 11 ; 多个溶剂喷孔 202划分成两列, 分别为第一溶剂喷孔列 21和 第二溶剂喷孔列 22, 第一溶剂喷孔列 21的各孔在平行于第一方向 x的方向间隔排 歹 IJ, 第二溶剂喷孔列 22的各孔在平行于第一方向 x的方向间隔排列, 墨水喷孔列 11位于第一溶剂喷孔列 21和第二溶剂喷孔列 22之间。 第一溶剂喷孔列 21中的各 孔分别与各个墨水喷孔 201—一对应, 且中心相对齐; 第二溶剂喷孔列 22中的各 孔与各个墨水喷孔 201—一对应, 且中心错位相对。 在其中一个实施例中, 第二 溶剂喷孔列 22中的各孔的中心位于相邻的两个墨水喷孔 201连线的中线上, 即相 邻的两个墨水喷孔 201相对相邻的第二溶剂喷孔列 22中的溶剂喷孔 202中心对称
[0039] 对于本实施例的喷孔布置方式, 利用擦拭布 141擦拭打印头 110表面的方向可以 按第一方向 x或与其相反的方向擦拭。
[0040] 请参阅图 5, 示出的是多个墨水喷孔 201在打印头 110表面按第一方向 x间隔排列 形成墨水喷孔列 11 ; 多个溶剂喷孔 202划分成三列, 分别为第一溶剂喷孔列 21、 第二溶剂喷孔列 22及第三溶剂喷孔列 23 , 第一溶剂喷孔列 21的各孔在平行于第 一方向 x的方向间隔排列, 第二溶剂喷孔列 22的各孔在平行于第一方向 x的方向
间隔排列, 墨水喷孔列 11位于第一溶剂喷孔列 21和第二溶剂喷孔列 22之间, 第 三溶剂喷孔列 23上的各孔在平行于第一方向 x的方向间隔排列, 且第三溶剂喷孔 列 23中各孔分别位于相邻的两个墨水喷孔 201之间的间隙中间。 在其中一个实施 例中, 第一溶剂喷孔列 21中的溶剂喷孔 202的中心、 与对应第二溶剂喷孔列 22中 的溶剂喷孔 202的中心及对应墨水喷孔 201的中心位于与第一方向 x相互垂直的第 二方向 y上。
[0041] 对于本实施例的喷孔布置方式, 利用擦拭布 141擦拭打印头 110表面的方向可以 按第一方向 x或与其相反的方向擦拭, 也可以按第二方向 y或与其相反的方向擦 拭。
[0042] 请参阅图 6(A)和 6(B), 示出的是两种不同的矩阵形式排布墨水喷孔 201和溶剂喷 孔 202的方式, 对于这两种喷孔布置方式, 可以按任意方向擦拭。 其他的喷孔布 置方式不再一一赘述, 其具体实施过程中可以根据实际需求不同设置。
[0043] 请参阅 4、 图 5、 图 6(B)和 6(B), 对于上述的墨水喷孔 201和溶剂喷孔 202, 在一 些实施例中, 相邻的两个墨水喷孔 201等距设置, 间距为 0.01-0.05 inch。 墨水喷 孔 201的孔径为 10-30 um。 溶剂喷孔 202的孔径为 100-500um。 在一些实施例中, 溶剂喷孔 202与墨水喷孔 201之间的距离为 0.02-0.2 inch。
[0044] 在一些实施例中, 溶剂储液容器 102中所储存的溶剂为墨水储液容器 101所储存 墨水相同或相似类型的溶剂。
[0045] 例如, 当墨水储液容器 101所储存墨水为 PEDOT、 TFB、 NPB等有机材料时, 溶剂储液容器 102中的溶剂可以为醇类溶剂如乙醇、 乙二醇、 正己醇或醇醚类溶 剂如乙二醇乙醚等溶剂。
[0046] 作为可替代方案, 当墨水储液容器 101所储存墨水为量子点等材料时, 溶剂储 液容器 102中的溶剂可以为长链烷烃类溶剂如正己烷, 或芳香烃类溶剂如甲苯, 或卤代芳香烃类溶剂如溴苯碘苯等有机溶剂。 这样相同或相似类型的溶剂更容 易将析出的墨水残留物溶解, 并在后续的擦拭过程中擦除。
[0047] 请参阅图 1和图 7, 本申请实施例还提供了一种基于上述的喷墨打印设备的清洁 方法, 清洁方法包括:
[0048] 步骤 S12, 关断墨水储液容器的出液端。
[0049] 请参结合 2和图 3 , 具体地, 可以利用正负压发生器 13或活塞机构产生负压关闭 墨水储液容器 101的出液端, 也可以利用设置在墨水储液容器 101的出液端的管 道阀门关闭。
[0050] 步骤 S14, 开通溶剂储液容器的出液端使溶剂通过溶剂喷孔挤出并悬挂在所述 打印头表面以待擦拭。
[0051] 请参结合 2和图 3 , 具体地, 可以利用正负压发生器 13或活塞机构产生正压开通 溶剂储液容器 102的出液端, 也可以利用设置在溶剂储液容器 102的出液端的管 道阀门开通, 其后通过加载正压将溶剂通过溶剂喷孔 202挤出。 挤出的溶剂挂在 打印头表面以溶解周围干燥的墨水残留物以待手动或自动擦拭。
[0052] 在更详细的实施例中, 请参阅图 3, 清洁方法包括, 关闭第一电磁阀 111、 第三 电磁阀 114、 第四电磁阀 113 , 此时墨水储液容器 101两端封闭, 墨水不发挥作用 。 首先打开第二电磁阀 112、 第六电磁阀 115, 在正压发生器 132的作用下将溶剂 通过溶剂喷孔 201中挤出, 随后立即关闭第六电磁阀 115并打开第五电磁阀 116, 使挤出的溶剂在负压发生器 131的作用下挂在打印头表面 200而不滴落。 挂在打 印头表面 200的溶剂逐渐溶解周围干燥的墨水残留物, 然后使用干燥洁净的擦拭 布擦拭即可带走打印头表面 200的溶剂以及被溶解的墨水残留物, 达到清洁打印 头表面 200的目的。
[0053] 请参阅图 8, 在另一个实施例中, 清洁方法包括:
[0054] 步骤 S22, 关断墨水储液容器的出液端。
[0055] 步骤 S24, 开通溶剂储液容器的出液端使溶剂通过溶剂喷孔挤出并悬挂在所述 打印头表面以待擦拭;
[0056] 步骤 S26 , 驱动具有擦拭布的擦拭装置使所述擦拭布按预设方向与所述打印头 表面相对摩擦运动以擦拭所述打印头表面的溶剂和墨水残留物; 和 /或驱动所述 打印头使其表面按预设方向与所述擦拭布相对摩擦运动以擦拭所述打印头表面 的溶剂和墨水残留物, 其中, 擦拭布与打印头表面相对设置。 即擦拭布 141和打 印头 110的表面分别或同时作相对摩擦运动, 使擦拭布 141擦拭打印头 110表面。
[0057] 具体地, 请参阅图 3, 即擦拭布 141和打印头 110的表面分别或同时作相对摩擦 运动, 使擦拭布 141擦拭打印头 110表面。 具体擦拭方向请参照上述图 4、 图 5、
图 6(A)和 6(B)具体实施方式中的描述。
[0058] 进一步地, 本申请实施例提供的喷墨打印设备还可以用于正常打印, 正常打印 时包括以下步骤:
[0059] 请参阅图 3, 关闭第二电磁阀 112、 第四电磁阀 113、 第五电磁阀 116、 第六电磁 阀 115 , 打开第一电磁阀 111、 第三电磁阀 114, 此时溶剂储液容器 102两端封闭 , 溶剂不起作用, 墨水储液容器 101上端与负压发生器 131连通, 下端与墨水喷 孔 201连通, 在操作系统的指令操作下, (调节负压发生器 131的压力) 墨水以 墨滴的形式从墨水喷孔 201中喷出以提供正常打印。
[0060] 以上所述仅为本申请的较佳实施例而已, 并不用以限制本申请, 凡在本申请的 精神和原则之内所作的任何修改、 等同替换和改进等, 均应包含在本申请的保 护范围之内。
Claims
[权利要求 1] 一种喷墨打印设备, 其特征在于, 包括:
墨水储液容器;
溶剂储液容器, 所述溶剂储液容器用于存储能溶解墨水残留物的溶剂 ; 以及
打印头, 所述打印头表面上开设有分别与所述墨水储液容器的出液端 和所述溶剂储液容器的出液端管道连接的至少一个墨水喷孔和至少一 个溶剂喷孔, 所述溶剂喷孔布置于所述墨水喷孔的边缘。
[权利要求 2] 如权利要求 1所述的喷墨打印设备, 其特征在于: 还包括具有擦拭布 的擦拭装置, 所述擦拭布与所述打印头表面相对设置;
所述擦拭装置用于使所述擦拭布按预设方向与所述打印头表面相对摩 擦运动以擦拭所述打印头表面的溶剂和墨水残留物; 和 /或所述打印 头使其表面按预设方向与所述擦拭布相对摩擦运动以擦拭所述打印头 表面的溶剂和墨水残留物。
[权利要求 3] 如权利要求 1所述的喷墨打印设备, 其特征在于: 多个墨水喷孔和多 个溶剂喷孔阵列排布, 且每个所述墨水喷孔的周边至少有两个相对布 置的溶剂喷孔。
[权利要求 4] 如权利要求 1、 2或 3所述的喷墨打印设备, 其特征在于: 多个所述墨 水喷孔在所述打印头表面按第一方向间隔排列形成墨水喷孔列; 多个 所述溶剂喷孔划分成两列, 分别为第一溶剂喷孔列和第二溶剂喷孔列 , 所述第一溶剂喷孔列的各孔在平行于第一方向的方向间隔排列, 所 述第二溶剂喷孔列的各孔在平行于第一方向的方向间隔排列, 所述墨 水喷孔列位于所述第一溶剂喷孔列和所述第二溶剂喷孔列之间。
[权利要求 5] 如权利要求 4所述的喷墨打印设备, 其特征在于: 所述第一溶剂喷孔 列中的各孔分别与各个所述墨水喷孔一一对应, 且中心相对齐; 所述 第二溶剂喷孔列中的各孔与各个所述墨水喷孔一一对应, 且中心错位 相对。
[权利要求 6] 如权利要求 5所述的喷墨打印设备, 其特征在于: 所述第二溶剂喷孔
列中的各孔的中心位于相邻的两个所述墨水喷孔连线的中线上。
[权利要求 7] 如权利要求 4所述的喷墨打印设备, 其特征在于: 多个所述溶剂喷孔 还划分有第三溶剂喷孔列, 所述第三溶剂喷孔列上的各孔在平行于第 一方向的方向间隔排列, 且所述第三溶剂喷孔列中各孔分别位于相邻 的两个所述墨水喷孔之间的间隙中间。
[权利要求 8] 如权利要求 6所述的喷墨打印设备, 其特征在于: 所述第一溶剂喷孔 列中的溶剂喷孔的中心、 与对应所述第二溶剂喷孔列中的溶剂喷孔的 中心及对应所述墨水喷孔的中心位于与所述第一方向相互垂直的第二 方向上。
[权利要求 9] 如权利要求 1所述的喷墨打印设备, 其特征在于: 所述墨水喷孔的孔 径小于所述溶剂喷孔的孔径。
[权利要求 10] 如权利要求 4所述的喷墨打印设备, 其特征在于: 相邻的两个所述墨 水喷孔间距为 0.01-0.05 inch。
[权利要求 11] 如权利要求 4所述的喷墨打印设备, 其特征在于: 所述墨水喷孔的孔 径为 10-30 um。
[权利要求 12] 如权利要求 4所述的喷墨打印设备, 其特征在于: 所述溶剂喷孔的孔 径为 100-500um。
[权利要求 13] 如权利要求 4所述的喷墨打印设备, 其特征在于: 所述溶剂喷孔与所 述墨水喷孔之间的距离为 0.02-0.2 inch
[权利要求 14] 如权利要求 4所述的喷墨打印设备, 其特征在于: 相邻的两个所述墨 水喷孔等距设置。
[权利要求 15] 如权利要求 1所述的喷墨打印设备, 其特征在于: 还包括正负压发生 器, 所述正负压发生器用于给所述墨水储液容器和所述溶剂储液容器 提供正、 负压。
[权利要求 16] 如权利要求 15所述的喷墨打印设备, 其特征在于, 利用所述正负压发 生器对所述溶剂储液容器加压使得溶剂通过所述溶剂喷孔中挤出, 利 用所述正负压发生器给所述溶剂储液容器的一端加载负压, 使得所述 溶剂喷孔挤出的溶剂在挂在所述打印头表面, 将所述打印头表面润湿
以溶解周围干燥的墨水残留物以待擦拭。
[权利要求 17] 如权利要求 15或 16所述的喷墨打印设备, 其特征在于, 所述正负压发 生器包括正压发生器和负压发生器, 所述墨水储液容器的一端与所述 正压发生器和所述负压发生器管道连接, 所述溶剂储液容器的另一端 与所述正压发生器和所述负压发生器管道连接。
[权利要求 18] 如权利要求 17所述的喷墨打印设备, 其特征在于: 所述墨水储液容器 的两端分别通过电磁阀与所述正负压发生器、 所述墨水喷孔相连, 所 述溶剂储液容器的两端分别通过电磁阀与所述正负压发生器、 所述溶 剂喷孔相连。
[权利要求 19] 一种喷墨打印设备的清洁方法, 其特征在于, 所述喷墨打印设备包括 墨水储液容器、 溶剂储液容器、 以及打印头, 所述打印头表面上开设 有分别与所述墨水储液容器的出液端和所述溶剂储液容器的出液端管 道连接的至少一个墨水喷孔和至少一个溶剂喷孔, 所述溶剂喷孔布置 于所述墨水喷孔的边缘;
所述清洁方法包括:
关断所述墨水储液容器的出液端;
开通所述溶剂储液容器的出液端使溶剂通过溶剂喷孔挤出并悬挂在所 述打印头表面以待擦拭。
[权利要求 20] 如权利要求 19所述的清洁方法, 其特征在于, 还包括:
驱动具有擦拭布的擦拭装置使所述擦拭布按预设方向与所述打印头表 面相对摩擦运动以擦拭所述打印头表面的溶剂和墨水残留物; 和 /或 驱动所述打印头使其表面按预设方向与所述擦拭布相对摩擦运动以擦 拭所述打印头表面的溶剂和墨水残留物;
其中, 所述擦拭布与所述打印头表面相对设置。
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| CN201811632912.5A CN111376589B (zh) | 2018-12-29 | 2018-12-29 | 喷墨打印设备及其清洁方法 |
| CN201811632912.5 | 2018-12-29 |
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| JP2015085660A (ja) * | 2013-11-01 | 2015-05-07 | 富士フイルム株式会社 | インクジェットヘッド洗浄装置及びインクジェットヘッド洗浄方法 |
| CN107150505A (zh) * | 2016-03-02 | 2017-09-12 | 松下知识产权经营株式会社 | 喷墨头的清洁装置、清洁方法以及打印装置 |
| JP2018030047A (ja) * | 2016-08-22 | 2018-03-01 | 住友重機械工業株式会社 | インクジェット装置及びインクジェット装置の洗浄方法 |
| CN108297548A (zh) * | 2017-01-06 | 2018-07-20 | 京瓷办公信息系统株式会社 | 记录头和具备记录头的喷墨记录装置 |
| CN207955022U (zh) * | 2018-01-13 | 2018-10-12 | 东莞市万邦印刷有限公司 | 一种印刷用喷墨装置 |
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| US7128410B2 (en) * | 2004-03-17 | 2006-10-31 | Videojet Technologies Inc. | Ink jet print head cleaning system |
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| KR20080099498A (ko) * | 2007-05-09 | 2008-11-13 | 삼성전자주식회사 | 잉크젯 화상형성장치 |
| FR2937584B1 (fr) * | 2008-10-28 | 2010-12-24 | Imaje Sa | Imprimante a tete d'impresssion a jet continu et dispositif de nettoyage de la tete |
| US10155389B2 (en) * | 2017-01-11 | 2018-12-18 | Kyocera Document Solutions Inc. | Head cleaning mechanism and ink jet recording apparatus including the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW583100B (en) * | 2003-06-30 | 2004-04-11 | Ritdisplay Corp | Method and apparatus for cleaning an ink-jetting head |
| JP2015085660A (ja) * | 2013-11-01 | 2015-05-07 | 富士フイルム株式会社 | インクジェットヘッド洗浄装置及びインクジェットヘッド洗浄方法 |
| CN107150505A (zh) * | 2016-03-02 | 2017-09-12 | 松下知识产权经营株式会社 | 喷墨头的清洁装置、清洁方法以及打印装置 |
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| CN207955022U (zh) * | 2018-01-13 | 2018-10-12 | 东莞市万邦印刷有限公司 | 一种印刷用喷墨装置 |
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