WO2011050759A1 - 一种喷墨打印机上的墨盒 - Google Patents
一种喷墨打印机上的墨盒 Download PDFInfo
- Publication number
- WO2011050759A1 WO2011050759A1 PCT/CN2010/080052 CN2010080052W WO2011050759A1 WO 2011050759 A1 WO2011050759 A1 WO 2011050759A1 CN 2010080052 W CN2010080052 W CN 2010080052W WO 2011050759 A1 WO2011050759 A1 WO 2011050759A1
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- WIPO (PCT)
- Prior art keywords
- ink
- cartridge
- negative pressure
- chamber
- ink cartridge
- Prior art date
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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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/1752—Mounting within the printer
- B41J2/17523—Ink connection
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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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17513—Inner structure
-
- 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
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17503—Ink cartridges
- B41J2/17553—Outer structure
Definitions
- the present invention relates to an ink cartridge on an ink jet printer. Background technique
- the ink cartridge of the existing inkjet printer is provided with a negative pressure mechanism in the ink cartridge.
- the negative pressure mechanism can generate a negative pressure inside the ink cartridge, but the negative pressure is generated at the beginning of the printing of the ink cartridge, and is maintained until the ink consumption.
- the ink cartridge is in a negative pressure state for a long time, it is easy to suck out the ink of the print head, which causes damage to the print head and affects the print quality.
- inkjet printer that uses a non-axial ink supply design that replaces the ink cartridge under the printhead and uses a suction pump to pump ink into the non-replaceable ink cartridge above the printhead.
- the ink cartridge above the print head is in communication with the nozzle and has a negative pressure mechanism to hold the ink.
- the replaceable ink cartridges of such printers only serve to hold the ink.
- the replaceable ink cartridge is a constant pressure structure, and the internal buoy is used to detect the amount of ink. Since the buoy has a certain weight, the buoy cannot accurately detect the amount of ink when the amount of ink is small, so the printer program is set up like this. Function: When the occlusion part on the other side of the buoy is not detected, the printer will prompt the ink to be exhausted after the printer prints 2-3ML of ink according to the internal counting device.
- a replaceable ink cartridge with an ink bag (shown in Figure 1) was invented for use with the printer.
- Such an ink cartridge does not have a passage that is electrically connected to the air, so it does not come into contact with air.
- the ink cartridge divides the ink bag into two parts, one part is used for detection and the other is used for containing ink, and the two are in communication.
- a part of the ink bag is sealed with a silicone film. Because the sealing materials of the two parts of the ink bag are different, the density and toughness of the two ink bags are all the same.
- the present invention provides an ink cartridge for an ink jet printer to solve the technical problem that the ink cartridge on the conventional ink jet printer has been under negative pressure during use, causing damage and deformation of components in the ink cartridge to affect print quality.
- the technical solution drawn by the present invention is:
- An ink cartridge for an inkjet printer comprising a casing, a detecting mechanism for detecting the remaining amount of the ink cartridge and the ink, the casing comprising an ink storage chamber for storing ink, and an ink outlet for supplying ink to the printing head of the printer And an air inlet
- the ink storage chamber includes a first ink chamber and a second ink chamber, and a first negative pressure mechanism is disposed between the first ink chamber and the second ink chamber, wherein the first ink A second negative pressure mechanism is further disposed between the cavity and the second ink chamber, and the first negative pressure mechanism and the second negative pressure mechanism cooperate to control the ink in the first ink chamber to be preferentially consumed than the ink in the second ink chamber.
- the second negative pressure mechanism generates a negative pressure when the ink in the ink storage chamber is printed to a certain amount.
- the first negative pressure mechanism is a gravity valve
- the second negative pressure mechanism is a buoyancy valve
- the gravity valve includes a gravity valve seat and a gravity spool that is denser than the ink.
- the buoyancy valve includes a buoyant valve seat and a buoyant valve seat having a lower density than ink.
- the detecting mechanism for detecting the remaining amount of the ink cartridge and the ink includes a first detecting component matching the first sensor on the printer, a second detecting component matching the second sensor on the printer, and a software disposed on the cartridge body communicating with the ink storage chamber a support cap, the second detecting component comprises a movable rod and a fixed shaft disposed on the box, the movable rod is connected to the casing shaft through a fixed shaft, and the soft support cap is located at the movable rod in gravity The corresponding position of the sagging function is to abut the movable rod when the movable rod position adjusting member exceeds the soft body supporting cap.
- the front wall of the casing provided with the ink outlet is further provided with an elastic member, one end of the elastic member is fixedly connected with the front wall of the casing, and the other end is bent to abut against the wall of the printer ink cartridge accommodating space, the elasticity a support position is provided on the component; the movable lever is supported by the elastic component Support.
- the gravity valve controls a negative pressure value that is greater than a dry resistance value of the software support cap.
- the support position is a hollow portion provided on the elastic member.
- a latching position is disposed on the front wall of the box body for providing the ink outlet, and one end of the elastic member is fixedly connected to the box body through the card position.
- the second negative pressure mechanism since the second negative pressure mechanism is added in the ink storage chamber, the second negative pressure mechanism generates a negative pressure when the ink in the ink storage chamber is printed to a certain amount, in the ink storage chamber.
- the ink is not used to a certain amount, no negative pressure is generated in the ink storage chamber, and the negative pressure is generated only when the remaining amount of ink is small, which solves the problem that the ink cartridge on the existing inkjet printer has been under negative pressure during use.
- the software support cap is used to alarm the remaining amount of ink, the control is more precise and the manufacturing process is simple.
- more ink can be loaded, saving the user's printing cost.
- Figure 1 is a schematic view of an ink cartridge that produces print defects.
- FIG. 2 is a schematic view of an ink cartridge of the present invention.
- Figure 3 is a schematic view showing the state of the ink cartridge at the beginning of loading the printer of the present invention
- Fig. 4 is a schematic view showing the state of the ink cartridge when the buoyancy valve is sealed during printing according to the present invention.
- FIG. 5 is a schematic view showing the dry state of the soft support cap of the present invention.
- Fig. 6 is a schematic view showing the ink cartridge state when the gravity valve of the present invention is opened.
- Figure 7 is a schematic view of a cartridge cartridge in accordance with the present invention.
- Figure 8 is a schematic view of the ink cartridge loading machine of the present invention.
- Figure 9A is a schematic view of the inner buoyancy valve seat and the gravity valve seat of the present invention.
- Figure 9B is a cross-sectional view of the inner buoyancy valve seat and the gravity valve seat of the present invention.
- Figure 9C is a schematic view of the inner software support cap of the present invention.
- Figure 9D is a cross-sectional view of the inner soft body support cap of the present invention.
- Figure 10 is a schematic view showing the fluid flow when the buoyancy valve is opened and the gravity valve is sealed according to the present invention.
- Figure 11 shows the new buoyancy valve seal, and the gravity valve opening is a schematic diagram of fluid flow.
- Buoyancy valve seat 82 Buoyancy valve core 811. Spool seal 812. Fluid passage 813. Seat seal rib
- the ink cartridge for an inkjet printer shown in FIG. 2 includes a casing, a detecting mechanism for detecting the remaining amount of the ink cartridge and the ink, and the casing includes an ink storage chamber for storing ink, and supplies ink to the printing head of the printer.
- the ink outlet port 7 and the air inlet port 2 the ink storage chamber includes a first ink chamber 20 and a second ink chamber 21, and a gravity valve 9 and a buoyancy valve 8 are disposed between the first ink chamber 20 and the second ink chamber 21, and gravity
- the valve 9 and the buoyancy valve 8 cooperate to control the ink in the first ink chamber 20 to be preferentially consumed by the ink in the second ink chamber 21, and the buoyancy valve 8 generates a negative pressure when the ink in the ink storage chamber is printed to a certain amount, the atmospheric inlet 2 is disposed on the first ink chamber 20.
- the detecting mechanism for detecting the remaining amount of the ink cartridge and the ink includes a first detecting member 3 matched with the first sensor on the printer, a second detecting member matching the second sensor on the printer, and a software support disposed on the cartridge body to communicate with the ink storage chamber
- the cap 6, the second detecting component comprises a movable rod member 5 and a fixed shaft disposed on the box body, the movable rod member is connected to the box shaft through the fixed shaft, and the soft body supporting cap is located corresponding to the movable rod member sagging under the action of gravity
- the position abuts the movable rod when the movable rod position adjusting member exceeds the soft body supporting cap, and the front wall of the box body provided with the ink outlet is further provided with an elastic member 4, and one end of the elastic member 4 is fixed to the front wall of the box body.
- the other end is connected to the wall of the printer ink cartridge accommodating space by bending, and the elastic member 4 is provided with a support position; the movable rod member is supported by the support position on the elastic member, and the support position is a hollow portion provided on the elastic member a card position is arranged on the front wall of the ink outlet of the box body, and one end of the elastic component is fixed by the card position and the box body Make a connection.
- the air outside the ink cartridge enters the inside of the casing 1 through the atmosphere inlet.
- the function of the ink outlet 7 is to transfer ink from the inside of the ink cartridge 1 to the print head of the printer.
- the first detecting unit 3 is detected in conjunction with the first sensor 104 of the printer. After the ink cartridge is installed, the first detecting unit 3 blocks the light emitted from the light emitting portion of the first sensor 104, and as shown in Fig. 8, the light receiving portion of the first sensor 104 receives no light. The detection of the ink cartridge installation is successful after the second detecting component 5 is detected in the printer.
- the second detecting unit 5 cooperates with the second sensor 102 of the printer to detect that after the ink cartridge is installed, the second detecting unit 5 blocks the light emitted from the light emitting portion of the second sensor 102, so that the light receiving portion of the second sensor 102 does not receive the light.
- the ink cartridge mounting is successfully detected, as shown in FIG.
- the function of the elastic member 4 is to detect the installation of the second detecting member. Because the ink cartridge is loaded into the printer, it has the following status:
- both sensors in the printer are on.
- the light is emitted from the emitting portion of the second sensor 102, blocked by the movable lever 5, and cannot be returned to the receiving portion of the second sensor 102.
- the second sensor 102 is disconnected, and the first sensor 104 is not
- the contact first detecting member 3 is in an on state.
- the elastic member 4 Since the elastic member 4 contacts the wall of the ink cartridge compartment 10, the elastic member 4 is displaced, and the movable lever member 5 is no longer supported, and the movable lever member 5 is displaced about the fixed axis, and The amount of displacement of the second sensor 102 in the moving direction is greater than that of the second sensor 102.
- the detected position of the movable lever 5 has passed the sensing position of the second sensor 102, and the light is incident on the receiving portion of the second sensor 102.
- the optical path of the two sensors 102 is turned on, and the light emitted from the transmitting portion of the first sensor 104 is blocked by the first detecting unit 3, and the optical path of the first sensor 104 is in an off state.
- the movable lever 5 As the cartridge is installed, light is emitted from the emitting portion of the second sensor 102, and at this time, the movable lever 5 is supported by the soft support cap 6 at the rear, as shown in FIG. 4, the displacement is stopped, and the position is stopped. In the detecting position of the second sensor 102, the movable lever 5 blocks the light emitted by the second sensor 102, and the light cannot return to the receiving portion of the second sensor 102.
- the optical path of the second sensor 102 is disconnected, and the first The light emitted from the emitting portion of the sensor 104 is still blocked by the first detecting member 3, the optical path of the first sensor 104 is also in an off state, and the ink inlet of the printer is engaged with the ink outlet port 7 of the ink cartridge, and the ink is smoothly supplied.
- the elastic member 4 When the elastic member 4 is in the initial state in the above process, as shown in FIG. 3, the movable rod member 5 is supported, and when the movable rod member 5 passes through the detecting position of the second sensor 102 once, the elastic member 4 is no longer supported.
- the elastic member 4 When the ink cartridge is taken out by the printer, the elastic member 4 re-supports the movable lever 5 to reset the movable member 5. In order to reinstall the machine, repeat the above installation process.
- Another function of the elastic member 4 is to eject the cartridge from the cartridge compartment 10 when the cartridge is removed from the printer.
- the process is that when the ink cartridge is loaded into the ink cartridge compartment 10, as shown in FIG. 7, the elastic member 4 is deformed, and since the ink cartridge cover 105 is closed, the elastic member 4 cannot be reset after being deformed, and when the ink cartridge cover 105 is opened, The elastic member 4 is reset and the ink cartridge is ejected.
- the function of the soft support cap 6 is to support the movable lever member 5 after the ink cartridge is installed, so that the second detecting member 5 stays at the detecting position of the second sensor 102, so that the installation detection is successful, as shown in FIG.
- the soft support cap 6 includes: a flexible support film 61 which can support the movable rod member 5 and can be dried according to internal pressure changes; a communication passage 62 can be connected to the ink chamber; a soft support cap seal The rib 63 seals the ink chamber as shown in Figure 9D.
- the ink detection will be performed by the following process: As the printing consumes, the ink quantity is continuously reduced. When the ink of the ink cartridge is exhausted, under the suction of the printer ink supply needle, The inner buoyancy valve 8 and the gravity valve 9 are adjusted. When the ink is almost exhausted, the soft support film 61 of the soft support cap 6 is dry, and the soft support film 61 no longer supports the movable rod 5, and the movable rod 5 The movement continues by gravity, leaving the position that blocks the optical path of the second sensor 102. Light is directed to the light receiving element, at which time the first sensor 104 of the printer is blocked, The second sensor is unoccluded, so that the printer prompts that the ink is about to run out and then signals the user.
- Buoyancy valve 8 the role of the gravity valve 9 is to adjust the pressure inside the ink cartridge, so that the inside of the soft support cap 6 is dry, as shown in Figure 5, and then achieve the purpose of ink detection.
- the buoyancy valve 8 includes: a buoyant valve seat 81 as shown in Fig. 9A and a buoyancy valve core
- buoyancy valve seat 81 is characterized by a valve core sealing portion 811 that cooperates with the buoyancy valve core 82, a fluid passage 812 for communicating the ink chamber and the ink outlet port, and a valve seat 81 can be fixed and
- a spool 82 characterized by a density lower than that of the ink, and can cooperate with the seat sealing portion 811 to seal the fluid passage 812, as shown in Fig. 9B.
- the gravity valve 9 comprises: a gravity valve seat 91 and a gravity valve core 92, wherein the gravity valve seat 91 has the same structural features as the buoyancy valve seat 81; a valve core 92 characterized by a density greater than that of the ink and at a certain pressure ( > -3KPa ) can be fitted with the seat seal to seal the fluid passage, as shown in Figure 8.
- the negative pressure value controlled by the gravity valve is greater than the dry resistance value of the soft support cap.
- the control process of the buoyancy valve 8 and the gravity valve 9 is as follows:
- the buoyancy valve core 82 of the buoyancy valve 8 When the ink in the ink cartridge is not consumed, the buoyancy valve core 82 of the buoyancy valve 8 has a density lower than that of the ink, so that the buoyancy valve core 82 floats above the ink, and the buoyancy valve 8 is in an open state, and the internal pressure of the ink cartridge is the same as the outside. Since the gravity valve 92 of the gravity valve 9 has a density greater than that of the ink, the gravity spool 92 cooperates with the seat seal to close the gravity valve. The flow of ink is shown in the dotted line in Figure 10.
- the ink level continues to decrease, and when the buoyancy spool 82 mates with the seat seal, the buoyancy valve 8 closes, and since the gravity valve 9 is also closed, the chamber adjacent the ink outlet is sealed. Since the ink supply needle of the printer has a certain suction force, it does not affect the printing.
- the pressure of the ink chamber that communicates with the soft support cap 6 gradually decreases with the consumption of printing, and reaches a certain value (-0.5 - -3 KPa), the soft body branch The flexible support film 61 of the cap 6 is deformed to no longer support the second detecting member 5. At this point, the printer indicates that the ink is about to run out (there is still 2-3ml of ink in the cartridge).
- the ink supply needle of the printer will continuously suck the ink.
- the pressure of the ink outlet reaches a certain value (-3KPa)
- the pressure generated by the atmospheric pressure and the pressure difference in the cavity can overcome the gravity valve 9.
- the gravity valve core 92 returns to the sealing position, and the gravity valve 9 is reclosed.
- the gravity valve 9 is continuously turned on and off to balance the pressure in the chamber until the ink is used up.
- This negative pressure control mode has high control precision and can accurately control the pressure of the soft support cap 6 when it is dry, ensuring the accuracy of the printer's ink detection.
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- Ink Jet (AREA)
Description
一种喷墨打印机上的墨盒 技术领域
本发明涉及一种喷墨打印机上的墨盒。 背景技术
现有的喷墨打印机的墨盒在墨盒中都设有一个负压机构, 这种负压机构 可以使墨盒内部产生负压, 但负压在墨盒打印开始时就产生了, 并一直保持 到墨水耗尽, 由于墨盒长期处于负压状态时, 容易将打印头的墨水吸出, 导 致打印头损坏, 而影响打印质量。
还有一类喷墨打印机釆用非在轴式墨水供给设计, 这种打印机可替换的 墨水盒位于打印头的下方, 釆用一个抽吸泵将墨水泵入打印头上方的不可替 换的墨水盒中, 打印头上方的墨盒与喷嘴连通, 并有负压机构来保持墨水。 此类打印机的可替换的墨盒只起到盛装墨水的作用。 但这种可替换的墨盒是 恒压结构, 靠内部的浮标来检测墨水量, 由于浮标有一定重量, 到了墨水量 较少时浮标就无法准确检测墨水量, 于是在打印机的程序中设置有这样的功 能: 当检测不到浮标另一侧的遮挡部时, 打印机根据内部计数装置再打印 2-3ML墨水后, 打印机才提示墨尽。
基于打印机的这种功能, 人们发明了一种带墨水袋(如图一所示) 的可 替换的墨盒来配合此打印机使用。 这样的墨盒没有与空气导通的通道, 所以 不会与空气接触。 但由于要配合打印机墨水量用尽时检测的要求, 此种墨盒 将墨水袋分为两部分, 一部分配合检测使用, 一部分用来盛装墨水, 两者是 相通的。 为了墨盒装机检测的需要, 检测部分墨水袋釆用硅胶膜密封。 由于 两部分墨水袋的密封材料不同, 其密度、 韧性等都 4艮难达到完全相同, 所以 对抽吸力的反映较难控制, 经常会出现盛装墨水的墨水袋首先干瘪, 检测墨 水袋后干瘪的情况。 此时检测部件检测到墨尽时, 墨盒内已不足 2ml墨水。
这样以来, 会导致打印口墨水供给不足, 打印头烧坏的问题。 发明内容
本发明提供一种喷墨打印机上的墨盒, 以解决现有喷墨打印机上的墨盒 在使用过程中一直负压而导致墨盒内的零部件易损坏和变形而影响打印质量 的技术问题。
为了解决以上技术问题, 本发明釆取的技术方案是:
一种喷墨打印机的墨盒, 包括一盒体、 用于检测墨盒和墨水剩余量的检 测机构, 所述盒体包括用于储存墨水的储墨腔、 向打印机的打印头供墨的出 墨口和大气进口, 所述储墨腔包括第一墨水腔和第二墨水腔, 所述第一墨水 腔和第二墨水腔之间设置有第一负压机构,其特征是, 所述第一墨水腔和第二 墨水腔之间还设置有第二负压机构, 所述第一负压机构和第二负压机构配合 控制第一墨水腔内的墨水比所述第二墨水腔墨水优先消耗,所述第二负压机 构使所述储墨腔内的墨水打印到一定量的时候才产生负压。
所述第一负压机构为重力阀, 所述第二负压机构为浮力阀。
所述重力阀包括重力阀座和密度比墨水大的重力阀芯。
所述浮力阀包括浮力阀座和密度比墨水小的浮力阀座。
所述检测墨盒和墨水剩余量的检测机构包括与打印机上第一传感器匹配 的第一检测部件、 与打印机上第二传感器匹配的第二检测部件和设置于盒体 上与储墨腔相通的软体支撑帽,所述第二检测部件包括可活动杆件和设置于 盒体的固定轴, 所述可活动杆件通过固定轴与盒体转轴连接, 所述软体支撑 帽位于可活动杆件在重力作用下下垂的对应位置处以在可活动杆件位置调节 件超过软体支撑帽时抵接可活动杆件。
所述盒体设置出墨口的前壁上还设置有弹性部件, 所述弹性部件一端与 盒体的前壁固定连接, 另一端通过弯曲可与打印机墨盒容纳空间的壁抵接, 所述弹性部件上设置有支撑位; 所述可活动杆件被所述弹性部件上的支撑位
支撑。
所述重力阀控制的负压值大于所述软体支撑帽干瘪阻力值。
所述支撑位为设置于弹性部件上的镂空部。
所述盒体设置出墨口的前壁上设置有一卡位, 所述弹性部件的一端通过 所述卡位与所述盒体固定连接。
在釆用了上述技术方案后, 由于储墨腔内增加了第二负压机构, 第二负 压机构使储墨腔内的墨水打印到一定量的时候才产生负压 , 在储墨腔内的墨 水没有使用到一定量的时候储墨腔内不产生负压, 只在最后墨水剩余量较少 时才产生负压, 解决了现有喷墨打印机上的墨盒在使用过程中一直负压而导 致墨盒内的零部件易损坏和变形而影响打印质量的技术问题。 另外, 由于釆 用了软体支撑帽进行墨水剩余量的报警, 控制更加精确, 并且制作工艺简单。 最后, 由于节省了浮标的空间, 可以装更多的墨水, 节省用户的打印成本。 附图说明
图 1为会产生打印缺陷的墨盒示意图。
图 2为本发明的墨盒示意图。
图 3为本发明装入打印机开始时墨盒状态示意图。
图 4为本发明打印时浮力阀密封时墨盒状态示意图。
图 5为本发明软体支撑帽干瘪状态示意图。
图 6为本发明重力阀开启时墨盒 态示意图。
图 7为本发明配合的墨盒仓示意图。
图 8为本发明所提出的墨盒装机示意图。
图 9A为本发明内浮力阀座和重力阀座示意图。
图 9B为本发明内浮力阀座和重力阀座截面图。
图 9C为本发明内软体支撑帽示意图。
图 9D为本发明内软体支撑帽截面图。
图 10为本发明浮力阀开启, 重力阀密封时流体流动示意图。
图 11为本实用新浮力阀密封, 重力阀开启是流体流动示意图。
图中: 1.墨盒 2.大气进口 3.第一检测部件 4.弹性部件 5.第二检测部件
6.软体支撑帽 7.出墨口 8.浮力阀 9.重力阀 10.墨盒仓 102.第二传感器 104.第 一传感器 105.墨盒仓盖 61.柔质支撑膜 62.连通通道 63.软体支撑帽密封肋
81.浮力阀座 82.浮力阀芯 811.阀芯密封部 812.流体通道 813.阀座密封肋
91.重力阀座 92.重力阀芯。 具体实施方式
如图 2所示的用于喷墨打印机的墨盒, 包括 1盒体、 用于检测墨盒和 墨水剩余量的检测机构, 盒体包括用于储存墨水的储墨腔、 向打印机的打 印头供墨的出墨口 7和大气进口 2,储墨腔包括第一墨水腔 20和第二墨水 腔 21 , 第一墨水腔 20和第二墨水腔 21之间设置有重力阀 9和浮力阀 8, 重力阀 9和浮力阀 8配合控制第一墨水腔 20内的墨水比第二墨水腔 21的 墨水优先消耗, 浮力阀 8使储墨腔内的墨水打印到一定量的时候才产生负 压, 大气进口 2设置在第一墨水腔 20上。
检测墨盒和墨水剩余量的检测机构包括与打印机上第一传感器匹配 的第一检测部件 3、 与打印机上第二传感器匹配的第二检测部件和设置于 盒体上与储墨腔相通的软体支撑帽 6,第二检测部件包括可活动杆件 5和设 置于盒体的固定轴, 可活动杆件通过固定轴与盒体转轴连接, 软体支撑帽 位于可活动杆件在重力作用下下垂的对应位置处以在可活动杆件位置调 节件超过软体支撑帽时抵接可活动杆件, 盒体设置出墨口的前壁上还设置 有弹性部件 4, 弹性部件 4一端与盒体的前壁固定连接, 另一端通过弯曲 可与打印机墨盒容纳空间的壁抵接, 弹性部件 4上设置有支撑位; 可活动 杆件被弹性部件上的支撑位支撑, 支撑位为设置于弹性部件上的镂空部, 盒体设置出墨口的前壁上设置有卡位, 弹性部件的一端通过卡位与盒体固
定连接。
其中墨盒外部的空气通过大气进口进入盒体 1 内部。 出墨口 7的作用 是将墨水由墨盒 1内传输到打印机的打印头中。
第一检测部件 3配合打印机的第一传感器 104检测。 在墨盒装机后, 第一检测部件 3遮挡第一传感器 104发光部发出的光, 如图 8所示, 使第 一传感器 104光接收部接收不到光。 配合第二检测部件 5在打印机中检测 后使墨盒装机检测成功。
第二检测部件 5配合打印机的第二传感器 102检测, 在墨盒装机后, 第二检测部件 5遮挡第二传感器 102发光部发出的光, 使第二传感器 102 光接收部接收不到光。 配合第一检测部件 3在打印机中检测后使墨盒装机 检测成功, 如图 8所示。
弹性部件 4的作用是配合第二检测部件装机检测。 因为在墨盒装入打 印机的过程中, 会有以下状态:
开始时, 打印机内的两传感器都处于接通状态。 随墨盒装机深入, 光 从第二传感器 102发射部发出, 经可活动杆件 5遮挡而无法回到第二传感 器 102的接收部, 此状态第二传感器 102光路断开, 而第一传感器 104未 接触第一检测部件 3属于接通状态。
然后光从第二传感器 102发射部发出, 由于弹性部件 4接触墨盒仓 10 的壁, 弹性部件 4发生位移, 不再支撑可活动杆件 5 , 可活动杆件 5绕固 定轴发生位移, 且在第二传感器 102运动方向上的位移量大于第二传感器 102, 这时可活动杆件 5的检测位置已经划过第二传感器 102感应位置, 光线射到第二传感器 102的接收部, 此状态第二传感器 102光路接通, 而 第一传感器 104的发射部发出的光被第一检测部件 3遮挡,第一传感器 104 光路处于断开状态。
随墨盒装机的深入, 光从第二传感器 102发射部发出, 而此时可活动 杆件 5被后部的软体支撑帽 6支撑, 如图 4所示, 停止发生位移, 且正处
于第二传感器 102的检测位置, 此时可活动杆件 5遮挡住第二传感器 102 发出的光, 光无法回到第二传感器 102接受部, 此状态第二传感器 102光 路断开, 而第一传感器 104的发射部发出的光仍被第一检测部件 3遮挡, 第一传感器 104光路也处于断开状态, 且打印机的进墨口与墨盒出墨口 7 配合, 并流畅供墨。
弹性部件 4在以上过程中初始状态时, 如图 3所示, 支撑可活动杆件 5 , 可活动杆件 5在划过第二传感器 102的检测位置一次时, 弹性部件 4 便不再支撑可活动杆件 5 , 此后可活动杆件 5会由软体支撑帽 6支撑。 在 墨盒由打印机取出时, 弹性部件 4会重新支撑可活动杆件 5 , 使可活动杆 件 5复位。 以便再次装机时重复以上的装机过程。
弹性部件 4的另一作用是在墨盒拆出打印机时 ,将墨盒弹离墨盒仓 10。 此过程是墨盒在装入墨盒仓 10时, 如图 7所示, 弹性部件 4会发生形变, 由于墨盒仓盖 105闭合后,使弹性部件 4形变后无法复位,在墨盒仓盖 105 打开时, 弹性部件 4复位, 会将墨盒弹出。
软体支撑帽 6的作用是在墨盒装机后, 支撑可活动杆件 5 , 使第二检 测部件 5停留在第二传感器 102的检测位置, 以便装机检测成功, 如图 8 所示。
软体支撑帽 6如图 9C所示, 包括: 一柔质支撑膜 61 , 可以支撑可活 动杆件 5 , 并可根据内部压力变化干瘪; 一连通通道 62可与墨水腔相连; 一软体支撑帽密封肋 63可密封墨水腔, 如图 9D所示。
另一个作用是配合打印机的墨尽检测, 墨尽检测会由以下过程: 随着打印的消耗, 墨水量不断减少, 当墨盒的墨水耗尽时, 在打印机 供墨针的抽吸作用下, 由于盒体 1 内浮力阀 8 , 重力阀 9的调节, 墨水快 要用尽时软体支撑帽 6的柔质支撑膜 61干瘪, 柔质支撑膜 61不再支撑可 活动杆件 5 ,可活动杆件 5由重力作用继续移动, 离开遮挡第二传感器 102 光路的位置。光直射到光接收元件,此时打印机的第一传感器 104被遮挡,
第二传感器未被遮挡, 从而打印机提示墨水即将耗尽, 然后发出信号提示 用户。
浮力阀 8 , 重力阀 9的作用是调节墨盒内部的压力, 使软体支撑帽 6 内部干瘪,如图 5所示, 进而达到墨尽检测的目的。
其中浮力阀 8包括: 一个如图 9A所示的浮力阀座 81和一个浮力阀芯
82, 其中浮力阀座 81 特征在于有一个与浮力阀芯 82 配合的阀芯密封部 811 , 一个用于连通墨水腔与出墨口的流体通道 812, 及一个可以将阀座 81 固定, 并使阀座 81周边密封的阀座密封肋 813 ; —个阀芯 82 , 特征在 于其密度小于墨水, 并且可以和阀座密封部 811配合密封流体通道 812, 如图 9B所示。
其中重力阀 9包括: 一个重力阀座 91和一个重力阀芯 92, 其中重力 阀座 91与浮力阀座 81的结构特征一样; 一个阀芯 92, 特征在于其密度大 于墨水, 并且在一定压强 ( > -3KPa ) 下可与阀座密封部配合密封流体通 道, 如图 8所示。 重力阀控制的负压值大于软体支撑帽干瘪阻力值。
浮力阀 8 , 重力阀 9的控制过程如下:
在墨盒内的墨水还未消耗时, 浮力阀 8的浮力阀芯 82 由于密度小于 墨水, 所以浮力阀芯 82浮于墨水上方, 浮力阀 8处于开启状态, 墨盒内 部压力与外部相同。 重力阀 9的重力阀芯 92由于密度大于墨水, 所以重 力阀芯 92与阀座密封部配合, 使重力阀处于闭合状态。 墨水的流动方式 如图 10中的虚线所示。
随着打印的消耗, 墨水位不断下降, 到浮力阀芯 82 与阀座密封部配 合时, 浮力阀 8闭合, 由于重力阀 9也处于闭合状态, 所以临近出墨口的 腔处于密封状态。 由于打印机的供墨针有一定抽吸力, 所以并不会影响打 印。
在浮力阀 8和重力阀 9都闭合后, 随着打印的消耗, 与软体支撑帽 6 连通的墨水腔的压强逐渐减小, 到达一定值(-0.5—— -3KPa ) 时,软体支
撑帽 6的柔性支撑膜 61变形, 不再支撑第二检测部件 5。 此时打印机提示 墨水即将耗尽(此时墨盒内的墨水还有 2-3ml ) 。
提示墨将尽后, 打印机的供墨针还会不断抽吸墨水, 当出墨口压强达 到一定值 ( -3KPa ) 时,由于大气压与腔内的压强差产生的压力已经可以 克服重力阀 9的重力阀芯 92的重力, 重力阀芯 92离开密封位置, 重力阀 9开启, 空气可由流体通道进入与软体支撑帽 6连通的墨水腔, 如图 6所 示, 此时的流体流动如图 11 所示。 当腔内压力减小时, 大气压与腔内的 压强差产生的压力不足以克服重力阀 9的重力阀芯 92的重力时, 重力阀 芯 92重新回到密封位置, 重力阀 9重新闭合。 随着墨水消耗, 重力阀 9 不断的进行开启和关闭的动作, 以便平衡腔内压力, 直到墨水用尽。
此负压控制方式的控制精度较高, 可以准确的控制软体支撑帽 6干瘪 时的压力, 确保了打印机墨尽检测的准确性。
Claims
1、 一种喷墨打印机的墨盒, 包括一盒体、 用于检测墨盒和墨水剩余 量的检测机构, 所述盒体包括用于储存墨水的储墨腔、 向打印机的打印头 供墨的出墨口和大气进口, 所述储墨腔包括第一墨水腔和第二墨水腔, 所 述第一墨水腔和第二墨水腔之间设置有第一负压机构, 其特征是, 所述第 ―墨水腔和第二墨水腔之间还设置有第二负压机构, 所述第一负压机构和 第二负压机构配合控制第一墨水腔内的墨水比所述第二墨水腔墨水优先 消耗,所述第二负压机构使所述储墨腔内的墨水打印到一定量的时候才产 生负压。
2、 如权利要求 1 所述的喷墨打印机的墨盒, 其特征是, 所述第一负 压机构为重力阀, 所述第二负压机构为浮力阀。
3、 如权利要求 2 所述的喷墨打印机的墨盒, 其特征是, 所述重力阀 包括重力阀座和密度比墨水大的重力阀芯。
4、 如权利要求 2 所述的喷墨打印机的墨盒, 其特征是, 所述浮力阀 包括浮力阀座和密度比墨水小的浮力阀芯。
5、 如权利要求 1或 2或 3或 4所述的喷墨打印机的墨盒, 其特征是, 所述检测墨盒和墨水剩余量的检测机构包括与打印机上第一传感器匹配 的第一检测部件、 与打印机上第二传感器匹配的第二检测部件和设置于盒 体上与储墨腔相通的软体支撑帽,所述第二检测部件包括可活动杆件和设 置于盒体的固定轴, 所述可活动杆件通过固定轴与盒体转轴连接, 所述软 体支撑帽位于可活动杆件在重力作用下下垂的对应位置处以在可活动杆 件位置调节件超过软体支撑帽时抵接可活动杆件。
6、 如权利要求 1或 2或 3或 4所述的喷墨打印机的墨盒, 其特征是, 所述盒体设置出墨口的前壁上还设置有弹性部件, 所述弹性部件一端与盒 体的前壁固定连接, 另一端通过弯曲可与打印机墨盒容纳空间的壁抵接, 所述弹性部件上设置有支撑位; 所述可活动杆件被所述弹性部件上的支撑 位支撑。
7、 如权利要求 1或 2或 3或 4所述的喷墨打印机的墨盒, 其特征是, 所述重力阀控制的负压值大于所述软体支撑帽干瘪阻力值。
8、 如权利要求 6 所述的喷墨打印机的墨盒, 其特征是, 所述支撑位 为设置于弹性部件上的镂空部。
9、 如权利要求 6 所述的喷墨打印机的墨盒, 其特征是, 所述盒体设 置出墨口的前壁上设置有卡位, 所述弹性部件的一端通过所述卡位与所述 盒体固定连接。
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Also Published As
Publication number | Publication date |
---|---|
EP2524810A1 (en) | 2012-11-21 |
CN101693424A (zh) | 2010-04-14 |
DE202010001340U1 (de) | 2010-04-08 |
CN101693424B (zh) | 2012-07-18 |
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