WO2006015535A1 - An ink cartridge with constant pressure - Google Patents

An ink cartridge with constant pressure Download PDF

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Publication number
WO2006015535A1
WO2006015535A1 PCT/CN2005/001089 CN2005001089W WO2006015535A1 WO 2006015535 A1 WO2006015535 A1 WO 2006015535A1 CN 2005001089 W CN2005001089 W CN 2005001089W WO 2006015535 A1 WO2006015535 A1 WO 2006015535A1
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WO
WIPO (PCT)
Prior art keywords
ink
chamber
constant pressure
cavity
valve
Prior art date
Application number
PCT/CN2005/001089
Other languages
French (fr)
Chinese (zh)
Inventor
Qingguo Xiao
Benyou Jin
Original Assignee
Print-Rite Unicorn Image Products Co., Ltd. Of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Print-Rite Unicorn Image Products Co., Ltd. Of Zhuhai filed Critical Print-Rite Unicorn Image Products Co., Ltd. Of Zhuhai
Publication of WO2006015535A1 publication Critical patent/WO2006015535A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17503Ink cartridges
    • B41J2/17556Means for regulating the pressure in the cartridge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005Typewriters 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
    • B41J2/01Ink jet
    • B41J2/17Ink jet characterised by ink handling
    • B41J2/175Ink supply systems ; Circuit parts therefor
    • B41J2/17503Ink cartridges
    • B41J2/17513Inner structure

Definitions

  • the present invention relates to an ink supply device for use with an ink jet printer, and more particularly to a constant pressure ink cartridge having an automatic constant pressure ink supply structure. Background technique
  • the Chinese Patent Application Specification No. CN1358137A discloses a positioning device for an ink cartridge which is provided on one side of the ink cartridge housing to be mounted on a printer.
  • the positioning device includes a pin hole provided on one side of the housing for mounting and positioning. The pin fits to position the ink cartridge to ensure that the ink supply port is stably docked with the printer.
  • the ink cartridge has a gas-tight box with a flexible ink bag. In order to allow ink to enter the printer, there must be an air passage that supplies air pressure between the casing and the bag. The liquid is supplied to the height required by the printhead to achieve constant pressure ink supply to the printhead.
  • the structure of the ink cartridge is relatively complicated and the processing cost is relatively high.
  • the object of the present invention is to design a constant pressure ink cartridge which has a simple structure and is capable of supplying ink to the print head at a substantially constant pressure by the structure of the ink cartridge itself after the height of the cartridge is fixed relative to the height of the print head; Design a constant pressure ink cartridge that can be opened by the airway when the machine is installed in place, and the airway can be closed by itself when the printer is removed.
  • the constant pressure ink cartridge provided by the present invention adopts a casing for accommodating ink and sealing, and a side wall of the casing has an ink supply port for supplying ink to the printing head after installation, and a side wall of the ink supply port. There is also a pin hole for inserting a positioning pin when the constant pressure ink cartridge is installed.
  • the casing has a partition wall separating the ink chamber into a first chamber and a second chamber, and the first chamber and the second chamber are connected through a hole provided at a lower portion of the partition wall.
  • the top of the first chamber is provided with an airway valve inside and outside the first cavity opened when the positioning pin is inserted.
  • Figure 1 is a schematic structural view of the present invention
  • Figure 2 is a structural view of the preferred embodiment
  • Figure 3 is a left side view of Figure 2;
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
  • Figure 5 is a cross-sectional view taken along line C-C of Figure 4.
  • Figure 6 is a partial enlarged view of D of Figure 5;
  • Figure 7 is a cross-sectional view taken along the line B-B of Figure 3;
  • Figure 8 is a partial enlarged view of E of Figure 7;
  • Figure 9 is a rear elevational view of Figure 2;
  • Figure 10 is an exploded view of the structure of Figure 2;
  • Figure 11 is an exploded view of the structure of Figure 9. detailed description
  • Figure 1 is a structural view taken along a side wall of the ink cartridge, the casing 4 being substantially rectangular in cross section.
  • An ink supply port 12 is disposed on the side wall, and an inlet 7 of the ink tube 6 is disposed at the lowest point of the second chamber 5.
  • An air passage valve 2 is disposed at the top of the first chamber 11, and the ink cartridge is loaded into the printer and then on the printer.
  • the positioning pin penetrates from the pin hole 1 and presses the airway valve 2 to open, and the gas can enter the first cavity 11 through the airway valve 2, the air hole 13 is an air hole of the airway valve cavity, and the hole 8 is the first cavity 11 A gas-liquid exchange hole with the second chamber 5.
  • the ink in the ink chamber has a level below the top of the first chamber 11 (including the airway valve chamber), i.e., the same level as the liquid level in the second chamber 5 of FIG.
  • the liquid level in the first chamber 11 is lowered, and the second chamber 5 keeps the liquid level unchanged due to the inaccessibility of the air, and the liquid level in the first chamber 11 drops to the map.
  • air enters the second chamber 5 from the hole 8 and at the same time, the ink in the second chamber 5 also flows into the first chamber 11 due to air entrapment, that is, the liquid level of the first chamber 11 rises to the hole.
  • the gas-liquid exchange process occurring at the hole 8 is stopped, and so on, that is, the constant pressure supply of the print head is started, and the ink supply pressure of the print head is maintained at the height of the head near the hole 8 until The ink in the second chamber 5 drops to the hole 8 Underneath, the constant pressure ink supply process ends, and the remaining ink is located at the lowest point of the second chamber 5 because the inlet 7 is located in the ink chamber, and the residual ink can be depleted as long as the ink cartridge is placed within the suction range of the print head.
  • FIG. 2 is a structural view of the open cover state, and some reinforcing ribs 15 are arranged in the casing 4 to improve the structural strength, one side wall behind The end is further provided with a concave hand-held position 16, and the outer surfaces of the upper and lower side walls of the box body 4 are further provided with a plurality of bumps 14 for cooperating with the printer, for conveniently arranging the ink cartridges and preventing the ink cartridges of different colors from being armored. .
  • an ink supply port 12 is disposed in the middle of the side wall of the ink cartridge, and a pin hole 1 is provided on the upper and lower sides of the ink supply port 12, respectively, and is coordinated with two positioning pins on the printer to ensure the print head and the ink supply port. 12 docking.
  • the ink in the ink chamber enters from the inlet 7 at the bottom of the chamber and is fed from the ink supply port 12 to the printhead via the ink tube 6.
  • the ink tube 6 of this example is formed on one side wall of the ink cartridge, and the lower end of the ink tube 6 extends laterally into the ink chamber to form an inlet 7.
  • a partition wall 10 is formed between the first chamber 11 and the second chamber 5 constituting the ink chamber, and the partition wall 10 also forms a spring valve chamber at the top of the first chamber 11 for supporting the air passage valve 2. .
  • the airway valve 2 is composed of a valve body 21, a sealing ring 22 and a spring 23.
  • the valve core 21 has a valve stem having a small diameter at the upper end and a large diameter at the lower end, and a valve cap at the lower end.
  • the valve stem and the spring are open.
  • the upper tapered hole is matched, the sealing ring 22 is located between the bonnet and the lower surface of the tapered hole, and the top end of the valve stem is located on the trajectory line of the positioning pin with respect to the insertion of the ink cartridge. Therefore, when the positioning pin is inserted, the spool 21 is pressed downward, that is, the air passage is opened. Valve 2, when the positioning pin is withdrawn, the spool 21 is lifted by the action of the spring 23, and the airway valve 2 is closed.
  • the ink tube 6 is formed on this side wall of the ink cartridge with a sealing plate 62 as described above for reasons of process considerations.
  • a sealing ring 17 is built in the ink supply port.
  • an ink supply passage for sealing to the outside is formed.
  • Two pin holes 1 are also provided on the side wall of the ink supply port 12 for ensuring accurate positioning of the ink supply port 12.
  • the upper pin hole 1 also has the function of pressing the airway valve spool 21 when the positioning pin is introduced. .
  • the ink tube 6 is composed of a groove 61 formed on the side wall, a sealing film 63, and a sealing plate.
  • the airway valve 2 can be changed from the vertical position of the above example to the transverse direction, so that the axis of the valve core 21 is coaxial with the positioning pin, thereby reducing the lateral direction during the docking process of the ink supply port. Force. Industrial applicability.
  • the invention eliminates the flexible bag, and the structure is greatly simplified.
  • the ink chamber is divided into the first cavity and the second cavity, and communicates through a hole in the lower part of the partition wall, so as to satisfy the basic constant pressure. Ink supply requirements.
  • an airway valve is arranged at the top of the first cavity, and the valve is opened only by the positioning pin on the printer when the machine is installed, and is used for the first cavity to communicate with the outside, so that the ink chamber that continuously consumes ink is replenished with gas.
  • the negative pressure in the ink chamber is lowered, and when the ink cartridge is removed from the printer, the valve can be automatically closed, which can effectively prevent the ink cartridge from being leaked after being taken out.

Abstract

The invention relates to an ink-supplying device used with an ink jet printer, especially to an ink cartridge with a constant-pressure ink­supplying structure and including a closed ink container. In one side of the container, there is a port for supplying ink to a print head and pinholes for inserting pins of the print head thereinto while mounting the cartridge, A partition divides the container into a first chamber and a second chamber, the two chambers communicating with each other via an opening in the lower of the partition. Located in the top of the first chamber is an air valve, which is actuated when the pins are inserted into the pinholes. It has simple structure, can supply ink under the constant pressure, and can prevent the ink from leaking while the cartridge is removed.

Description

技术领域 Technical field
本发明涉及与喷墨打印机配套使用的供墨装置,特别是一种具有自动恒压 供墨结构的恒压墨盒。 背景技术  The present invention relates to an ink supply device for use with an ink jet printer, and more particularly to a constant pressure ink cartridge having an automatic constant pressure ink supply structure. Background technique
CN1358137A 号中国发明专利申请说明书公开了一种在墨盒, 在墨盒外壳 的一面设置有装至打印机上时用的定位装置,定位装置包括设置在外壳一面上 的销孔, 其用于装机时和定位销配合, 使墨盒得以定位, 确保供墨口与打印机 稳定对接。该墨盒有一个气密的盒体, 内置一个容墨的柔性袋, 为使墨液能进 入打印机,必须有一个向盒体内与袋之间提供气压的气道,用气体挤压墨袋达 到墨液到打印头所需的高度,实现相对打印头恒压供墨。这种墨盒的结构比较 复杂, 加工成本也比较高。  The Chinese Patent Application Specification No. CN1358137A discloses a positioning device for an ink cartridge which is provided on one side of the ink cartridge housing to be mounted on a printer. The positioning device includes a pin hole provided on one side of the housing for mounting and positioning. The pin fits to position the ink cartridge to ensure that the ink supply port is stably docked with the printer. The ink cartridge has a gas-tight box with a flexible ink bag. In order to allow ink to enter the printer, there must be an air passage that supplies air pressure between the casing and the bag. The liquid is supplied to the height required by the printhead to achieve constant pressure ink supply to the printhead. The structure of the ink cartridge is relatively complicated and the processing cost is relatively high.
此外, 不使用袋式墨盒结构的其他墨盒通常有一个向墨腔内补充气体, 以 降低腔内负压与外界压差的气道,现有这类墨盒的气道口在运输及初次使用前 由一贴膜密封, 使用时撕开, 当墨液未尽中途取下墨盒或用尽取下时, 常有墨 液自供墨口漏出, 原因是气道无法再次封闭。 发明内容  In addition, other ink cartridges that do not use the structure of the bag type ink cartridge generally have an air passage for replenishing the ink chamber to reduce the pressure difference between the negative pressure in the chamber and the outside. The air passages of the existing ink cartridges are transported and used for the first time. A film is sealed and is torn open during use. When the ink is removed from the ink cartridge or is used up, the ink often leaks from the ink supply port because the air passage cannot be closed again. Summary of the invention
发明的目的是设计一种结构简单、 盒体所处高度相对打印头高度固定 后, 能靠墨盒本身结构保证以基本恒定的压力向打印头供墨的恒压墨盒; 本发明的另一目的是设计一种装机到位后气道能自行打开,自打印机取下 时气道能自行关闭的恒压墨盒。  SUMMARY OF THE INVENTION The object of the present invention is to design a constant pressure ink cartridge which has a simple structure and is capable of supplying ink to the print head at a substantially constant pressure by the structure of the ink cartridge itself after the height of the cartridge is fixed relative to the height of the print head; Design a constant pressure ink cartridge that can be opened by the airway when the machine is installed in place, and the airway can be closed by itself when the printer is removed.
为实现上述目的, 本发明提供的恒压墨盒采用一个容纳墨液且密封的盒 体,盒体的一个侧壁上有装机后向打印头输出墨液的供墨口,供墨口所在侧壁 上还有用于恒压墨盒装机时定位销插入用的销孔,盒体内有一分隔墨腔为第一 腔和第二腔的隔壁,第一腔与第二腔通过设在该隔壁下部的孔连通,第一腔的 顶部设有定位销插入时开启的第一腔内外的气道阀。  In order to achieve the above object, the constant pressure ink cartridge provided by the present invention adopts a casing for accommodating ink and sealing, and a side wall of the casing has an ink supply port for supplying ink to the printing head after installation, and a side wall of the ink supply port. There is also a pin hole for inserting a positioning pin when the constant pressure ink cartridge is installed. The casing has a partition wall separating the ink chamber into a first chamber and a second chamber, and the first chamber and the second chamber are connected through a hole provided at a lower portion of the partition wall. The top of the first chamber is provided with an airway valve inside and outside the first cavity opened when the positioning pin is inserted.
1 1
确 认 本 附图说明 Confirmation DRAWINGS
图 1本发明的结构原理图;  Figure 1 is a schematic structural view of the present invention;
图 2最佳实施例的结构图;  Figure 2 is a structural view of the preferred embodiment;
图 3是图 2的左视图;  Figure 3 is a left side view of Figure 2;
图 4是图 3的 A- A阶梯剖视图;  Figure 4 is a cross-sectional view taken along line A-A of Figure 3;
图 5是图 4的 C-C剖视图; ·  Figure 5 is a cross-sectional view taken along line C-C of Figure 4;
图 6是图 5的 D局部放大图;  Figure 6 is a partial enlarged view of D of Figure 5;
图 7是图 3的 B-B阶梯剖视图;  Figure 7 is a cross-sectional view taken along the line B-B of Figure 3;
图 8是图 7的 E局部放大图;  Figure 8 is a partial enlarged view of E of Figure 7;
图 9是图 2的后视图;  Figure 9 is a rear elevational view of Figure 2;
图 10是图 2的结构分解图;  Figure 10 is an exploded view of the structure of Figure 2;
图 11是图 9的结构分解图。 具体实施方式  Figure 11 is an exploded view of the structure of Figure 9. detailed description
以下通过依据本发明给出的最佳实施例及其附图作进一步详细说明: 参见图 1 , 图 1是紧贴墨盒一个侧壁剖开的结构示图, 盒体 4在该剖面基 本为矩形, 内有一个被隔壁 10分隔成第一腔 11和第二腔 5的密封的墨腔,两 个矩形空间 3、 9是供打印机定位销自左向右插入并与外界连通的空间, 即空 间 3、 9不是墨腔的一部分。 侧壁上设有一个供墨口 12, 墨管 6的入口 7设在 第二腔 5的最低处, 在第一腔 11的顶部设有一个气道阀 2, 墨盒装入打印机 后, 打印机上的定位销自销孔 1穿入, 压迫气道阀 2使其开启, 气体可经气道 阀 2进入第一腔 11, 气孔 13是气道阀腔的过气孔, 孔 8是第一腔 11与第二 腔 5间的气液交换孔。 墨盒装入打印机时, 墨腔内的墨液具有第一腔 11 (包 括气道阀腔)顶部以下的液位,即有与如图 1中第二腔 5中的液位相同的高度。 在打印过程中, 随着墨液的消耗, 首先是第一腔 11 内的液位下降, 第二腔 5 由于空气无法进入而保持液位不变, 当第一腔 11内的液位下降到图 1示的状 态时, 空气从孔 8进入第二腔 5, 同时, 第二腔 5内的墨液也由于空气补入而 流向第一腔 11, 即第一腔 11的液位会上升至孔 8之上, 使得发生在孔 8处的 气液交换过程停止, 如此反复, 即幵始对打印头进行恒压供墨, 相对打印头的 供墨压力将保持在孔 8 附近的水头高度, 直到第二腔 5 内的墨液下降到孔 8 之下时,恒压供墨过程结束,余下的墨液因入口 7位于墨腔也是第二腔 5的最 低处, 只要墨盒搁置在打印头吸力范围内, 仍可将残墨耗尽。 The following is a further detailed description of the preferred embodiment and the accompanying drawings in accordance with the present invention: Referring to Figure 1, Figure 1 is a structural view taken along a side wall of the ink cartridge, the casing 4 being substantially rectangular in cross section. There is a sealed ink chamber partitioned by the partition wall 10 into the first cavity 11 and the second cavity 5, and the two rectangular spaces 3, 9 are spaces for the printer positioning pin to be inserted from the left to the right and communicate with the outside, that is, the space. 3, 9 is not part of the ink chamber. An ink supply port 12 is disposed on the side wall, and an inlet 7 of the ink tube 6 is disposed at the lowest point of the second chamber 5. An air passage valve 2 is disposed at the top of the first chamber 11, and the ink cartridge is loaded into the printer and then on the printer. The positioning pin penetrates from the pin hole 1 and presses the airway valve 2 to open, and the gas can enter the first cavity 11 through the airway valve 2, the air hole 13 is an air hole of the airway valve cavity, and the hole 8 is the first cavity 11 A gas-liquid exchange hole with the second chamber 5. When the ink cartridge is loaded into the printer, the ink in the ink chamber has a level below the top of the first chamber 11 (including the airway valve chamber), i.e., the same level as the liquid level in the second chamber 5 of FIG. During the printing process, with the consumption of the ink, firstly, the liquid level in the first chamber 11 is lowered, and the second chamber 5 keeps the liquid level unchanged due to the inaccessibility of the air, and the liquid level in the first chamber 11 drops to the map. In the state shown in Fig. 1, air enters the second chamber 5 from the hole 8, and at the same time, the ink in the second chamber 5 also flows into the first chamber 11 due to air entrapment, that is, the liquid level of the first chamber 11 rises to the hole. Above 8 , the gas-liquid exchange process occurring at the hole 8 is stopped, and so on, that is, the constant pressure supply of the print head is started, and the ink supply pressure of the print head is maintained at the height of the head near the hole 8 until The ink in the second chamber 5 drops to the hole 8 Underneath, the constant pressure ink supply process ends, and the remaining ink is located at the lowest point of the second chamber 5 because the inlet 7 is located in the ink chamber, and the residual ink can be depleted as long as the ink cartridge is placed within the suction range of the print head.
以下给出本发明的一个最佳实施例,所有附图 (包括图 1)中相同的标号具 有相同的含义。  DETAILED DESCRIPTION OF THE INVENTION A preferred embodiment of the present invention is given below, and the same reference numerals are used in all drawings (including Fig. 1) to have the same meanings.
参见图 2, 从工艺考虑, 将盒体 4的一个侧壁设计成盖, 图 2是开盖状态 的结构图, 盒体 4内设置了一些加强筋 15, 以提高结构强度, 一个侧壁后端 还设有内凹的手持位 16, 盒体 4的上下两个侧壁外表面还设有若干个与打印 机配合的凸块 14, 用于方便墨盒就位及防止不同颜色的墨盒被篡装。  Referring to FIG. 2, from the viewpoint of the process, one side wall of the casing 4 is designed as a cover, and FIG. 2 is a structural view of the open cover state, and some reinforcing ribs 15 are arranged in the casing 4 to improve the structural strength, one side wall behind The end is further provided with a concave hand-held position 16, and the outer surfaces of the upper and lower side walls of the box body 4 are further provided with a plurality of bumps 14 for cooperating with the printer, for conveniently arranging the ink cartridges and preventing the ink cartridges of different colors from being armored. .
参见图 3, 墨盒的这个侧壁中部设有供墨口 12, 供墨口 12的上下各有一 个销孔 1, 分别与打印机上的两只定位销配合进行定位, 确保打印头与供墨口 12对接。  Referring to FIG. 3, an ink supply port 12 is disposed in the middle of the side wall of the ink cartridge, and a pin hole 1 is provided on the upper and lower sides of the ink supply port 12, respectively, and is coordinated with two positioning pins on the printer to ensure the print head and the ink supply port. 12 docking.
参见图 4, 墨腔内的墨液从位于腔底部的入口 7进入, 经墨管 6自供墨口 12送往打印头。  Referring to Figure 4, the ink in the ink chamber enters from the inlet 7 at the bottom of the chamber and is fed from the ink supply port 12 to the printhead via the ink tube 6.
参见图 5、 图 6, 基于工艺性考虑, 本例墨管 6成型在墨盒的一个侧壁上, 墨管 6的下端横向伸入墨腔内则形成入口 7。  Referring to Fig. 5 and Fig. 6, based on the technical considerations, the ink tube 6 of this example is formed on one side wall of the ink cartridge, and the lower end of the ink tube 6 extends laterally into the ink chamber to form an inlet 7.
参见图 7, 构成墨腔的第一腔 11与第二腔 5间有一个隔壁 10, 隔壁 10 在第一腔 11的顶部还形成一个弹簧阀腔, 用于支撑气道阀 2。 .  Referring to Fig. 7, a partition wall 10 is formed between the first chamber 11 and the second chamber 5 constituting the ink chamber, and the partition wall 10 also forms a spring valve chamber at the top of the first chamber 11 for supporting the air passage valve 2. .
参见图 8, 气道阀 2由阀芯 21、 密封圈 22及弹簧 23构成, 阀芯 21有一 个上端直径小、下端直径大的阀杆及位于下端的阀帽构成, 阀杆与弹簧阔腔上 部的锥孔配合, 密封圈 22位于阀帽与锥孔下表面间, 阀杆顶端位于定位销相 对墨盒插入的轨迹线上, 因此, 定位销插入时将压迫阀芯 21下行, 即开启气 道阀 2, 定位销退出时, 在弹簧 23的作用下阀芯 21上行, 关闭气道阀 2。  Referring to Fig. 8, the airway valve 2 is composed of a valve body 21, a sealing ring 22 and a spring 23. The valve core 21 has a valve stem having a small diameter at the upper end and a large diameter at the lower end, and a valve cap at the lower end. The valve stem and the spring are open. The upper tapered hole is matched, the sealing ring 22 is located between the bonnet and the lower surface of the tapered hole, and the top end of the valve stem is located on the trajectory line of the positioning pin with respect to the insertion of the ink cartridge. Therefore, when the positioning pin is inserted, the spool 21 is pressed downward, that is, the air passage is opened. Valve 2, when the positioning pin is withdrawn, the spool 21 is lifted by the action of the spring 23, and the airway valve 2 is closed.
参见图 9, 如前述基于工艺性考虑的原因, 墨管 6成型在墨盒的这个侧壁 上, 其有一块封板 62。  Referring to Figure 9, the ink tube 6 is formed on this side wall of the ink cartridge with a sealing plate 62 as described above for reasons of process considerations.
参见图 10, 为保证供墨口 12与打印头密封地对接, 在供墨口内置了一只 密封圈 17, 当打印头吸墨针剌入时构成一个对外界密封的输墨通道。 供墨口 12所在侧壁上还设有二只销孔 1, 用于保证供墨口 12的准确定位, 同时, 上 部的销孔 1还具有引入定位销时压迫气道阀阀芯 21的作用。  Referring to Fig. 10, in order to ensure that the ink supply port 12 is sealingly interfaced with the print head, a sealing ring 17 is built in the ink supply port. When the ink suction needle of the printing head is inserted, an ink supply passage for sealing to the outside is formed. Two pin holes 1 are also provided on the side wall of the ink supply port 12 for ensuring accurate positioning of the ink supply port 12. At the same time, the upper pin hole 1 also has the function of pressing the airway valve spool 21 when the positioning pin is introduced. .
参见图 11, 墨管 6由成型在侧壁上的槽 61、 封膜 63及封板构成。  Referring to Fig. 11, the ink tube 6 is composed of a groove 61 formed on the side wall, a sealing film 63, and a sealing plate.
本实用新型的技术构思并不仅限于上述实施例,还可以依据本实用新型的 构思得到许多不同的具体方案,例如,可以将气道阀 2由上例的竖置改为横置, 使阀芯 21的轴线与定位销共轴线, 从而减小供墨口对接过程中的横向受力。 工业应用性 . The technical idea of the present invention is not limited to the above embodiments, and may also be according to the present invention. It is conceivable to obtain many different specific solutions. For example, the airway valve 2 can be changed from the vertical position of the above example to the transverse direction, so that the axis of the valve core 21 is coaxial with the positioning pin, thereby reducing the lateral direction during the docking process of the ink supply port. Force. Industrial applicability.
本发明相对于袋式墨盒, 本发明省去了柔性袋, 结构大为简化, 墨腔分隔 成第一腔和第二腔, 并在隔壁下部通过一只孔连通, 可以实现满足基本恒压的 供墨要求。 同时, 设置了一个位于第一腔顶部的气道阀, 该阀仅在装机时靠打 印机上的定位销开启,用于第一腔与外界连通,使不断消耗墨液的墨腔得到气 体补充, 降低墨腔内的负压, 墨盒自打印机取下时, 该阀能自动关闭, 能有效 防止取下后的墨盒漏墨。  Compared with the bag type ink cartridge, the invention eliminates the flexible bag, and the structure is greatly simplified. The ink chamber is divided into the first cavity and the second cavity, and communicates through a hole in the lower part of the partition wall, so as to satisfy the basic constant pressure. Ink supply requirements. At the same time, an airway valve is arranged at the top of the first cavity, and the valve is opened only by the positioning pin on the printer when the machine is installed, and is used for the first cavity to communicate with the outside, so that the ink chamber that continuously consumes ink is replenished with gas. The negative pressure in the ink chamber is lowered, and when the ink cartridge is removed from the printer, the valve can be automatically closed, which can effectively prevent the ink cartridge from being leaked after being taken out.

Claims

权利要求书 Claim
1、 恒压墨盒, 包括  1, constant pressure ink cartridges, including
一个容纳墨液且密封的盒体;  a box containing ink and sealed;
盒体的一个侧壁上设有装机后可向打印头输出墨液的供墨口;  An ink supply port for outputting ink to the print head after installation is provided on one side wall of the casing;
供墨口所在侧壁上还有用于恒压墨盒装机时定位销插入用的销孔; 盒体内有一分隔墨腔为第一腔和第二腔的隔壁,第一腔与第二腔通过设在 该隔壁下部的孔连通;  The side wall of the ink supply port also has a pin hole for inserting the positioning pin when the constant pressure ink cartridge is installed; the casing has a partition wall separating the ink chamber into the first cavity and the second cavity, and the first cavity and the second cavity are disposed through The holes in the lower part of the partition wall are connected;
其特征在于- 第一腔的顶部设有定位销插入时开启的连通所述第一腔内外的气道阀。  The utility model is characterized in that - the top of the first cavity is provided with an airway valve which is opened when the positioning pin is inserted and communicates with the inside and outside of the first cavity.
2、 根据权利要求 1所述的恒压墨盒, 其特征在于: 2. The constant pressure ink cartridge according to claim 1, wherein:
所述第二腔的最低处设有通向所述供墨口的墨管入口。  The lowest point of the second chamber is provided with an ink tube inlet leading to the ink supply port.
3、 根据权利要求 1或 2所述的恒压墨盒, 其特征在于: 3. The constant pressure ink cartridge according to claim 1 or 2, wherein:
所述气道阀由一弹簧将阀芯顶压在所述盒体上阀孔而构成;  The airway valve is formed by a spring pressing a valve core against a valve hole on the casing;
阀芯具有穿过阀孔伸出所述第一腔的伸出部,且该伸出部处于所述定位销 相对墨盒插入时的轨迹线上。  The spool has a projection extending through the valve bore from the first cavity, and the projection is on a trajectory line of the locating pin with respect to the insertion of the cartridge.
4、 根据权利要求 3所述的恒压墨盒, 其特征在于: 4. The constant pressure ink cartridge according to claim 3, wherein:
所述阀芯与所述阀孔的密封面间还设有一只密封圈。  A sealing ring is further disposed between the valve core and the sealing surface of the valve hole.
5、 根据权利要求 4所述的恒压墨盒, 其特征在于- 所述供墨口内设有与打印头密封对接的密封装置。 5. The constant pressure ink cartridge according to claim 4, wherein - the ink supply port is provided with a sealing means that is in sealing engagement with the print head.
PCT/CN2005/001089 2004-08-10 2005-07-21 An ink cartridge with constant pressure WO2006015535A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNU2004200895916U CN2741774Y (en) 2004-08-10 2004-08-10 Constant pressure ink box
CN200420089591.6 2004-08-10

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WO2006015535A1 true WO2006015535A1 (en) 2006-02-16

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CN112026173B (en) 2018-07-13 2021-10-08 惠普发展公司,有限责任合伙企业 Interface structure, interface structure assembly, printing liquid supply device and printing kit
MX2020010777A (en) 2018-07-13 2020-12-10 Hewlett Packard Development Co Print liquid supply.
WO2020013835A1 (en) 2018-07-13 2020-01-16 Hewlett-Packard Development Company, L.P. Print liquid supply
BR112020021113A2 (en) 2018-07-13 2021-02-17 Hewlett-Packard Development Company, L.P. printing liquid supply

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HK1074970A2 (en) 2005-11-25

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