WO2010121464A1 - 一种盲文打印装置 - Google Patents

一种盲文打印装置 Download PDF

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Publication number
WO2010121464A1
WO2010121464A1 PCT/CN2009/074244 CN2009074244W WO2010121464A1 WO 2010121464 A1 WO2010121464 A1 WO 2010121464A1 CN 2009074244 W CN2009074244 W CN 2009074244W WO 2010121464 A1 WO2010121464 A1 WO 2010121464A1
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WO
WIPO (PCT)
Prior art keywords
paper
printing
base
light source
electromagnet
Prior art date
Application number
PCT/CN2009/074244
Other languages
English (en)
French (fr)
Inventor
郭少鹏
刘俊标
韩立
徐鲁宁
Original Assignee
中国科学院电工研究所
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 中国科学院电工研究所 filed Critical 中国科学院电工研究所
Priority to US13/000,646 priority Critical patent/US20110103864A1/en
Publication of WO2010121464A1 publication Critical patent/WO2010121464A1/zh

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Classifications

    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/32—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing in Braille or with keyboards specially adapted for use by blind or disabled persons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B41J11/0021—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation
    • B41J11/00214—Curing or drying the ink on the copy materials, e.g. by heating or irradiating using irradiation using UV radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/16—Braille printing

Definitions

  • the present invention relates to a Braille printing apparatus, and more particularly to a Braille printing apparatus for performing Braille printing by a glue dispensing method. Background technique
  • Braille printers or printing presses use mechanical impact and rolling to deform the surface of kraft paper to form a raised or depressed Braille point. .
  • This method requires a certain hardness and strength of the kraft paper, and the high cost causes the price of the braille printing product to be high.
  • Japanese Patent Publication JP-A-2000-354805A proposes a Braille article apparatus using photocuring condensed matter.
  • the patent document indicates that the relative movement of the paper table and the nozzle can spray the required Braille points, and the material is a liquid condensed substance which can be condensed under visible light.
  • the shortcoming of the Braille article device proposed in the patent document is that it does not have the functions of paper feeding, paper taking, and paper unloading.
  • the UV inkjet printer of the technology can print large-format drawings. It feeds the paper by using a plurality of pairs of paper feed rollers to press the paper up and down, and to feed the paper by rotating friction.
  • This type of machine is not a device in the field of Braille printing and cannot directly print Braille products; technically, its roller-type feeding and paper-feeding methods cannot be used in high-brad bump printing products.
  • Its ink is very viscous, the pattern is very thin (less than 0.1mm), and it is impossible to print Braille products. Summary of the invention
  • the object of the present invention is to overcome the shortcomings of the prior art ink jet printers which are incapable of printing Braille prints, and to provide a Braille printing apparatus which is simple in structure, complete in function and fully automated; thereby greatly improving the printing speed and print quality of Braille.
  • the Braille printing device comprises a paper taking mechanism, a paper feeding mechanism, a printing mechanism, a curing light source and a paper discharge mechanism.
  • the above five parts cooperate with each other to complete high-speed Braille printing (spraying point); the paper taking mechanism, printing mechanism, curing light source and paper unloading mechanism are sequentially arranged above the base;
  • the paper taking mechanism is installed at one end of the base and fixed on the base by the bracket; the paper discharge electromagnet clip constituting the paper discharge mechanism is installed at the other end of the base;
  • the X direction guide rail is installed in the base, and the paper feeding mechanism is installed in the X direction guide rail in the base
  • the paper feeding mechanism moves in the X direction guide rail; the paper feeding mechanism shuttles under the paper taking mechanism, the printing mechanism, the curing light source and the paper unloading mechanism;
  • the printing mechanism is fixed above the two columns on both sides of the middle portion of the base;
  • the two ends are fixed on the side walls of the two columns; the curing light source and the spray
  • the upper part of the paper take-up mechanism is an input paper box, the lower part is an output guide groove, and the middle part is a core part of the paper picker;
  • the guide groove is a slide rail with ribs on both sides, and the width of the guide groove is slightly wider than the printing paper page;
  • the end of the slot is slightly higher than the paperboard.
  • the paper feeding mechanism includes a paper feeding motor, an X-direction guide rail, a screw rod and a slider transmission mechanism, and the core thereof is a paper board; the inside of the rail is a long screw bar, a slider is embedded in the rail, and the screw rod penetrates the slider and slides
  • the block is a thread mother, and a paper feed motor is arranged at one end of the guide rail, and the paper feed motor shaft and the lead screw are fixed together, and the paper feed motor drives the screw movement and drives the slider (mother) to move along the guide rail.
  • the paperboard is fixed on the slider in the horizontal rail by the connecting member and moves with the slider; the X-direction rail is fixed on the base, and the exit direction of the paper taking mechanism is parallel to the direction of the X-direction rail, and the paper taking mechanism is on the upper
  • the paper mechanism is under; the paper pick-up electromagnet clip and photodetector are mounted on both sides of the back of the paperboard.
  • the paperboard can be moved with the slider to the lower exit of the paper take-up mechanism. At this position, the paper fed by the paper pick-up mechanism can be fed into the paperboard, and both sides of the paper can be picked up by the paper take-off electromagnet clip and the photodetector.
  • the photodetector detects that the paper take-up electromagnet clip can clamp the paper.
  • the paper take-off electromagnet clip clamps the paper, and then the paper feed motor drives the slider and the paperboard to move in the X direction to realize the paper feeding function.
  • the printing mechanism is installed in the middle of the base; the printing mechanism is composed of a printing motor, a Y-direction guide rail and a spray valve mounted on the guide rail slider; two vertical columns are mounted on both sides of the base, and two Y-direction guide rails of the printing mechanism The end is fixed on the column; the Y-direction guide is equipped with a printing motor at one end, and the spray valve is fixed on the slider of the Y-direction guide rail, the spray valve is installed on the left side of the column, and the nozzle of the spray valve points downward to the pallet; The rotation of the screw rod can drive the slider and the spray valve to reciprocate along the Y-direction guide rail; the spray valve completes one line of Braille point spray in each direction of the Y direction, and one round-trip motion completes the injection of two lines of Braille points.
  • the X direction of the Y-direction guide rail and the base paper feed mechanism The direction of the guide rail is perpendicular; the spray valve is sprayed on each line of the Braille point in the Y direction; the paper feed mechanism of the paper feed mechanism advances the paper feed line, so the glue movement in the Y direction and the paper feed motion in the X direction are sprayed.
  • the phases are alternately moving.
  • the curing light source is fixed to the right side of the two columns by connectors.
  • the paperboard passes through the spray valve and the curing light source from below.
  • the curing light source is relatively close according to the spray valve, which can realize the side edge glue edge curing, improve the production efficiency of the printed product, and reduce the volume of the whole machine.
  • the paper unloading mechanism is a paper discharge electromagnet clip that is mounted on the other end of the base. It is at the same level as the pallet.
  • the paperboard carrying paper is printed by a glue valve, and the curing light source is solidified to reach the paper discharge electromagnet clip.
  • the paper on the pallet can be leveld into the opening of the unloading electromagnet clip.
  • the paper take-off electromagnet clip and the unloading electromagnet clip are made of an electromagnet;
  • the electromagnet is composed of a slide bar, a multi-turn coil wound wire package and a return spring;
  • the slide bar has ferromagnetism, and the slide bar passes through the center of the wire package When the power is turned on, the sliding rod moves along the axial direction of the sliding rod.
  • the sliding rod When the power is off, the sliding rod is reset by the return spring; the sliding rod is equipped with a flap at one end, and the sliding piece is a small piece of thin plate, made of metal material or plastic, the piece of the piece
  • the entrance chamfer facilitates paper entry; when the electromagnet is energized or de-energized, the slider moves the flap, and the flap can press or release the paper under the flap to achieve the function of clamping and releasing the paper.
  • the paper feeding mechanism of the invention can produce a high Braille bump dot by using a flat sheet carrying paper method. You can directly take paper, feed, print, solidify, and unload paper on plain paper (such as A4 paper), and print Braille as a very high Braille product.
  • plain paper such as A4 paper
  • Figure 1 is a schematic view of the structure of the apparatus of the present invention, in which: 1 carton, 2 drawers, 3 guide grooves, 4 pallets, 5 paper take-off electromagnet clips, 6 bases, 7 paper discharge electromagnet clips, 8 curing light source , 9 Y direction guide rail, 10 spray valve, 11 paper feed motor, 13 photo detector, 16 columns;
  • Figure 2 is a front elevational view showing the relationship between the base and the paperboard structure of the present invention
  • Figure 3 is a plan view showing the relationship between the base and the paperboard structure of the present invention, in which: 14 the paper discharge opening,
  • Figure 4 is a working flow chart of the printer
  • Figure 5 is a Braille pulse electrical signal diagram
  • Fig. 6 is a drawing of JP-A-2000-354805A. detailed description
  • the Braille printing device comprises a paper taking mechanism, a paper feeding mechanism, a printing mechanism, a curing light source and a paper unloading mechanism, wherein the paper picking mechanism, the printing mechanism, the curing light source and the paper unloading mechanism are four.
  • the parts are arranged above the base 6 in this order.
  • the base 6 has an X-direction guide rail, and the paper feed mechanism is mounted in the X-direction guide rail in the base 6, and the paper feed mechanism moves in the X-direction guide rail.
  • the paper picking mechanism is mounted on the upper end of the base 6 through the bracket.
  • the two vertical pillars 16 erect the Y-direction guide rail of the printing mechanism in the middle of the base 6.
  • the two ends of the curing light source 8 are respectively fixed on the side walls of the two vertical pillars 16 through the brackets.
  • the paper discharge mechanism is mounted at the other end of the base 6. The paper feed mechanism shuttles under the pickup mechanism, the printing mechanism, the curing light source, and the paper discharge mechanism.
  • the paper take-up mechanism is mounted on the front end of the base 6, and is fixed to the base 6 by a bracket.
  • the paper take-up mechanism includes a paper cassette 1 for inputting the upper paper, a guide groove 3 for the lower output paper, and a gripper 2 for the middle.
  • the paper take-up mechanism may be a paper cutter capable of performing a paper take-up function, or a conventional printer having a print function; the present invention uses a conventional finished printer as a paper take-up mechanism. Fix the printer on the base 6 with a bracket and set a certain height.
  • the paper cassette 1 attached to the printer itself is used to store the paper.
  • a guide groove 3 is installed in the lower paper exit of the paper take-up mechanism, and the guide groove 3 is a slide rail with ribs on both sides, and the width of the guide groove 3 is slightly wider than the printing paper page.
  • the guide groove 3 is fixed to the paper exit of the printer.
  • the guide groove 3 guides the movement of the paper pushed out by the gripper 2, the end of the guide groove 3 is slightly higher than the tray 4, and the horizontal movement of the tray 4 does not hit the guide groove 3.
  • the printer's paper feed button is triggered, a piece of paper is ejected from the paper cassette 1 and sent out without printing. If you want to print the plaintext at this time, and finally print the document of the blind civilized text, you can print the document in the clear text.
  • the result of the gripper 2 is to take out the sheet of paper in the paper cassette 1 and feed it into the guide groove 3, and the guiding action of the guide groove 3 can cause the paper cutter 2 (or the printer) to pass down.
  • the leading end of the paper smoothly enters the opening of the pickup electromagnet iron clip 5 on the pallet 4.
  • the base 6 is a rectangular frame structure, and the X-direction guide rail, the lead screw and the paper feed motor 11 are mounted on the side of the base 6.
  • a tray 4 is fixed on the slider 15 in the Y-direction rail, and two paper-taking electromagnet clips 5 and two photodetectors 13 are mounted on the tray 4, and the tray 4 is opened toward the side of the paper-loading electromagnet clip 7. There are two unloading openings 14.
  • the function of the paper feed mechanism is to clamp the fed paper to a position where printing is required.
  • the paper feeding mechanism uses a flat paper feeding method, and its structure is as shown in Figs. 2 and 3.
  • the core of the paper feeding mechanism is the paper feeding.
  • Plate 4 tray 4 is slightly larger than paper (eg, A4 size).
  • the pallet 4 is fixed to the slider 15 of the X-direction rail by a connecting member.
  • the X-direction rail is fixed to one side inside the base 6.
  • the X-direction guide is equipped with a paper feed motor 11 and a screw is placed in the X-direction guide rail.
  • the paper feed motor 11 drives the slider 15 and the paper tray 4 to move by the rotation of the screw.
  • Two pick-up electromagnet clips 5 and two photodetectors 13 are mounted on both sides of the back of the tray 4.
  • the paper picker 2 of the paper take-up mechanism is above the paperboard 4, and the paper is fed by the paper picker 4. From the direction in which the paper is fed, the paper pick-up electromagnet clip 5 is in front, the photodetector 13 is behind, and two paper take-offs are taken.
  • the pitch of the electromagnet clip 5 is the same as the paper width.
  • the paper take-up electromagnet clip 5 When the paper is detected by the photodetector 13, the paper take-up electromagnet clip 5 is powered up, and the paper is clamped. After the paper is clamped, the paper feed motor 11 drives the screw to rotate, and the slider 15 as the nut moves along the X-direction guide rail.
  • the printing mechanism is mounted in the middle of the base 6.
  • the printing mechanism consists of a printing motor, a Y-direction guide 9, and a glue valve 10 mounted on the Y-direction rail slider.
  • Two vertical columns 16 are mounted on both sides of the center of the base 6, and the two ends of the Y-direction guide 9 of the printing mechanism are fixed on the two legs.
  • Printing mechanism One end of the Y-direction guide rail 9 is provided with a printing motor, and the sliding valve 10 is fixed to the slider of the Y-direction guide rail, and the nozzle of the dispensing valve 10 is directed downward toward the supporting cardboard 4.
  • the printing motor is driven by the screw to rotate the slider and the glue valve 10 to reciprocate in the Y direction.
  • the Y-direction guide rail is perpendicular to the direction of the X-direction guide of the base paper feed mechanism.
  • Jet glue can be used with high viscosity curable adhesives with a viscosity greater than 2000, such as UV glue (OG154).
  • the volume of each Braille point is between 0.3uL and luL, and the point height is greater than 0.3mm.
  • Spray valve 10 Each single-pass movement can complete a line of Braille points injection under the control pulse.
  • the 10 can use high-speed piezoelectric spray valve such as EFD company's 744MV-100.
  • the spray valve can complete a Braille point injection within 2 milliseconds, and the rated spray point operating frequency is 150Hz.
  • the number of points in one line is within 60, so the ejection of a line of Braille points can be completed in 0.5 seconds.
  • the controller only needs to send the injection pulse sequence signal according to the content of the printed document, and then complete the printing task of one line of Braille points.
  • the control pulse applied to the glue valve and the Braille point to be printed are - corresponding to Figure 5.
  • the glue valve 10 reciprocates along the Y-direction guide rail 9 and simultaneously ejects the Braille points.
  • the glue valve 10 is in the Y direction for each line of the Braille point ejection mechanism
  • the pallet 4 advances by one line spacing in the X direction, so that the progressive scanning is performed, and finally the ejection of the Braille points of the entire sheet of paper is completed.
  • the curing light source 8 is a row of ultraviolet LEDs having a total width corresponding to the width of the printing paper. The LED light is facing downward toward the paperboard 4, and the distance between the LED light emitting surfaces and the paperboard 4 is 1 cm. Ultraviolet LEDs allow the UV-curable gel to quickly solidify from a liquid to a solid.
  • the curing light source 8 and the glue dispensing valve 10 are respectively located on both sides of the column 16.
  • the paper is continuously sprayed by the Braille point, and the paperboard 4 continuously advances in the X direction, and the sprayed area It will gradually enter below the curing light source 8 and pass through the irradiation zone of the curing light source 8.
  • This method of curing while printing can improve the speed of the entire process and improve the production efficiency of the printed matter.
  • this LED arrangement shortens the length dimension of the whole machine in the X direction and reduces the overall volume.
  • the curing light source 8 uses ultraviolet LED. In order to improve the printing speed, the ultraviolet light has high light intensity.
  • the conventional ultraviolet high-pressure mercury lamp has high power and serious heat, which has safety hazard to the paper, and the ultraviolet light power density of the ordinary fluorescent lamp is relatively small. It requires a long curing time to cure. If it is used in combination with the above high-speed printing, it will inevitably increase the mechanical size of the curing process. Therefore, UV LEDs are used as curing sources.
  • the ultraviolet LED has high luminous efficiency and low heat, so the present invention uses a plurality of UVLEDs arranged in a row along the ejection direction, and the row of UVLEDs is disposed in a position closer to the dispensing valve 10 in the X direction for ejection.
  • the glue points enter the curing zone as quickly as possible, which has the advantages of improved dot quality and full page print output speed, as well as shortened the length of the whole machine. Two rows or even multiple rows of UVLEDs can be considered in a row where the LED curing effect is not ideal.
  • the paper discharge mechanism is a paper discharge electromagnet clip 7, and the paper discharge electromagnet clip 7 is attached to the rear end of the base 6. It is at the same level as the pallet 4 .
  • the paperboard 4 transports the paper from the lower portion and prints through the glue valve 10, and the curing light source 8 is solidified to reach the paper discharge electromagnet clip 7.
  • the upper surface of the paperboard 4 and the opening height of the paper discharge electromagnet clip 7 are uniform, and the paper discharge opening 14 is opened on the paperboard, and the paper discharge electromagnet clip can enter the paper discharge opening 14, and the paper on the paperboard 4 can be horizontal.
  • the ground enters the opening 14 of the paper discharge electromagnet clip 7.
  • the paper take-up electromagnet clip 5 and the paper discharge electromagnet clip 7 are made of an electromagnet.
  • the electromagnet consists of a slide bar, a multi-turn coil wound wire package and a return spring.
  • the slider has ferromagnetism and the slider passes through Line package center. When the power is turned on, the sliding rod moves along the axial direction of the sliding rod, and when the power is off, the sliding rod is reset by the return spring.
  • One end of the slider is equipped with a flap, and the flap is a small piece of thin plate made of metal material or plastic. The entrance chamfer of the flap facilitates the entry of the paper.
  • the electromagnet When the electromagnet is energized or de-energized, the slider moves the flap, and the flap can press or release the paper under the flap to realize the function of clamping and releasing the paper.
  • the workflow of the present invention is as shown in Fig. 4, and paper picking, paper feeding, printing curing, and unloading are sequentially performed. The entire set of actions is done under the control of a computer or other controller.
  • the paper in the paper cassette 1 can be automatically taken out and passed down to the paperboard 4 of the paper feeding mechanism via the paper picker 2, and the photodetector 13 on the paper board can detect whether the paper is in place or not, and automatically put it in place.
  • the paper is sent to the printing mechanism spray valve 10, and the glue valve 10 is printed line by line, and the curing light source 8 sequentially cures the sprayed Braille dots.
  • the paperboard 4 reaches the paper discharge electromagnet clip 7, the paper discharge electromagnet clip 7 unloads the paper, and the paperboard 4 returns to the paper take-up station, and automatically enters the next work cycle.
  • the entire work cycle is fully automated and the output from the carton to the finished product is fully automated.
  • picking up the paper is the process of taking out the single sheet of paper in the paper cassette 1 and feeding it to the paperboard 4.
  • the paperboard 4 is returned to the 1 position, and then the paper stacker 2 (ordinary printer) pulls out a stack of paper in the paper tray, prints the plain text or directly to the guide groove 3, and the paper is in the paper cutter 2 (ordinary Under the thrust of the printer, the paper guide 4 smoothly enters the paper tray 4, and the leading edge of the paper enters the paper take-up electromagnet clip 5 under the guiding action of the guiding groove 3.
  • the photodetector detects the paper, the paper taking electromagnet clip 5 is energized and clamped. Paper.
  • Paper feed After the paper is taken out, most of the paper remains in the guide groove 3, but the paper has been clamped by the paper take-up electromagnet clip 5. At this time, the paperboard 4 is moved under the X-direction guide rail 6 under the paper feed motor 11 to move under the spray valve 10, and the paper is fed directly under the glue spray valve 10, as shown in position 1 in Fig. 1, to be ready for printing.
  • Printing Printing and curing are performed simultaneously with the cooperation of the X-direction paper feed mechanism and the glue valve 10 in the Y-direction guide rail 9.
  • the glue valve 10 only moves back and forth along the Y-direction guide rail.
  • the spray valve 10 can complete the injection of the glue point of one line of Braille every single movement.
  • the paper board 4 is driven.
  • the paper is stepped by one line spacing in the X direction. In this way, the glue movement in the Y direction and the paper feed motion in the X direction are alternately performed, and the glue printing operation of the entire page of Braille can be completed line by line.
  • the Braille ejection action of the glue valve 10 advances in the reciprocating motion OK, so a round-trip movement will spray two lines of Braille.
  • Curing is the process of solidifying the Braille from the liquid spray valve from the liquid to solid. The curing process is not performed until the printing is completely finished.
  • Curing light source 8 ultraviolet LED close to the spray valve, in the process of jetting the spray valve 10, the paper feeding mechanism continuously pushes the paperboard 4 in the X direction, when the portion of the paperboard 4 enters the curing light source 8 The curing work begins. This is done simultaneously with the curing of the light source 8 and the dispensing of the glue valve 10. After the printing operation is completed, the paperboard 4 continues to move in the X direction until the entire Braille glue point of the paper surface is solidified, and the curing work is completely finished.
  • the paper tray 4 feeds the paper to position 3 in Figure 1.
  • the leading edge of the paper is fed into the opening of the paper discharge electromagnet clip 7, and the paper discharge electromagnet clip 7 electrically clamps the paper, and the paper take-off electromagnet clip 5 is powered off to release the paper, and the paperboard 4 is moved from the position 3 to the position 1,
  • the paper remains in position 3 due to the clamping of the paper discharge electromagnet clip 7, and when the paperboard 4 returns to the position 1 of Fig. 1, the paper is completely separated from the paperboard 4, and the paper discharge electromagnet clip 7 is discharged and the paper is under gravity. fall.
  • the entire print job completes one work cycle through the above five workflows, and can enter the next Braille print cycle.

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Description

一种盲文打印装置 本申请要求于 2009 年 04 月 24 日提交中国专利局、 申请号为 200910082584.0、 发明名称为"一种盲文打印装置"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
本发明涉及一种盲文打印装置， 特别涉及釆用喷胶方法进行盲文打印 的盲文打印装置。 背景技术
在传统盲文打印领域， 通常釆用成本高， 具有较高硬度和强度的牛皮 纸来打印盲文， 盲文打印机或印刷机利用机械冲击和碾压等方法使牛皮纸 张表面变形形成突起或凹陷的盲文点位。 这种方法需要牛皮纸张具有一定 硬度和强度， 成本高造成盲文印制品价格高。
日本专利文献 JP特开 2000-354805A提出了一种利用光固化凝聚物质 的盲文制品设备。 如图 6所示， 该专利文献指出托纸台面和喷嘴相对运动 可以喷涂需要的盲文点位， 用料是可见光下可以凝聚的液态凝聚物质。 该 专利文献提出的盲文制品设备的不足是不具备进纸、 取纸、 卸纸等功能。
现在技术的 UV油墨喷绘机， 可以打印大幅图面， 它送料是釆用多对 送纸轮上下压紧纸， 靠转动摩擦力送纸。 这种机器不是盲文印制品领域的 设备， 不能直接打印盲文制品； 在技术上， 它的这种滚轮式进纸、 出纸方 式无法使用于高盲文凸点印制品。 它的油墨是粘度非常小的， 图形非常薄 (小于 0.1mm ) , 无法进行盲文制品打印。 发明内容
本发明的目的是克服现有油墨喷绘机无法打印盲文印刷品的缺点， 提 供一种结构简单、 功能完备， 全自动化的盲文打印装置； 从而极大地提高 盲文打印速度和打印质量。
本发明提供的盲文打印装置包括取纸机构、 送纸机构、 打印机构、 固 化光源和卸纸机构。上述五个部分相互配合下可以完成高速的盲文打印（喷 点）；取纸机构、打印机构、固化光源和卸纸机构顺序排列安装在底座上方； 取纸机构安装在底座一端， 通过支架固定在底座上； 组成卸纸机构的卸纸 电磁铁夹子安装在底座的另一端； 底座内装有 X方向导轨， 送纸机构安装 在底座内的 X方向导轨内， 送纸机构在 X方向导轨内运动； 送纸机构在取 纸机构、 打印机构、 固化光源和卸纸机构的下方穿梭运动； 打印机构固定 在底座中部两侧的两根立柱上方； 固化光源的两端固定在两根立柱的侧壁 上； 固化光源和打印机构的喷胶阀分别位于立柱的两侧。
取纸机构的上部是输入纸盒， 下部为输出导向槽， 中部是它的核心部 分搓纸器； 导向槽为两侧带挡边的滑道，导向槽的宽度比打印纸页面略宽； 导向槽的末端比托纸板略高。
送纸机构包括送纸电机、 X方向导轨、 丝杠、 滑块传动机构， 其核心 是托纸板； 导轨内是一根长丝杠， 导轨内嵌入一滑块， 丝杠穿透滑块， 滑 块是丝母， 导轨一端装有送纸电机， 送纸电机轴和丝杠固定在一起， 送纸 电机带动丝杠运动并驱动滑块（丝母） 沿导轨运动。 托纸板通过连接件固 定在水平导轨内的滑块上， 并随滑块一起运动； X方向导轨固定在底座上， 取纸机构出口方向与 X方向导轨的方向平行， 取纸机构在上， 送纸机构在 下； 托纸板上后部两侧装有取纸电磁铁夹子和光电检测器。 托纸板随滑块 可以运动到取纸机构的下方出口处， 在这个位置， 取纸机构送出的纸张可 被送入托纸板， 纸张的两侧通过取纸电磁铁夹子和光电检测器， 可被光电 检测器检测到， 取纸电磁铁夹子动作可以夹紧纸张。
光电检测器检测到从取纸机构的搓纸器送来的纸张后， 取纸电磁铁夹 子上电夹紧纸张， 然后送纸电机驱动滑块和托纸板运动沿 X方向运动， 实 现送纸功能。
打印机构安装在底座的中部； 打印机构由打印电机、 Y方向导轨以及 安装在导轨滑块上的喷胶阀组成； 底座中部两侧安装两根竖直的立柱， 打 印机构的 Y方向导轨的两端固定在立柱上； Y方向导轨的一端装有打印电 机， Y方向导轨的滑块上固定喷胶阀， 喷胶阀安装在立柱左侧， 喷胶阀的 喷嘴向下指向托纸板； 打印电机通过丝杆转动可带动滑块和喷胶阀沿 Y方 向导轨往返运动； 喷胶阀在 Y方向每个单程运动完成一行盲文点喷胶， 一 个往返运动完成两行盲文点的喷射。 Y方向导轨与底座送纸机构的 X方向 导轨方向相垂直； 喷胶阀在 Y方向上对每行盲文点喷射完毕； 送纸机构的 托纸板都前进送纸一行，所以 Y方向上的喷胶运动和 X方向上送纸运动在 喷胶阶段是交替动作的。
固化光源通过连接件固定在两根立柱右侧。 托纸板从下方先后通过喷 胶阀和固化光源。 固化光源据喷胶阀比较近， 可以实现边喷胶边固化， 提 高打印制品的生产效率， 减小整机体积。
卸纸机构即卸纸电磁铁夹子， 它安装在底座另一端。 它和托纸板处于 同一水平高度。 托纸板携带纸张通过喷胶阀打印， 固化光源固化后到达卸 纸电磁铁夹子。 托纸板上的纸张可水平进入卸纸电磁铁夹子的开口中。
所述取纸电磁铁夹子和卸纸电磁铁夹子由电磁铁制作；电磁铁由滑杆、 多砸线圈绕制的线包和复位弹簧组成； 滑杆具有铁磁性， 滑杆穿过线包中 心； 通电时滑杆沿滑杆轴向动作， 断电时滑杆在复位弹簧作用下复位； 滑 杆一端装有档片， 档片为一小块薄板， 用金属材料或塑料制作， 档片的入 口倒角便于纸张进入； 在电磁铁通电、 断电情况下， 滑杆带动档片运动， 档片可以压紧或松开档片下的纸张， 实现夹紧和松开纸张的功能。
本发明的走纸机构釆用平板承载纸张方式，可以制作高盲文凸点胶点。 可以直接对普通打印纸 （如 A4打印纸）进行取纸、 送纸、 打印、 固化、 卸纸功能， 打印出盲文点为非常高的盲文制品。 附图说明
下面结合附图和具体实施方式对本发明作进一步详细的说明。
图 1是本发明装置的结构示意图， 图中： 1纸盒， 2搓纸器， 3导向槽， 4托纸板， 5取纸电磁铁夹子， 6底座， 7卸纸电磁铁夹子， 8固化光源， 9 Y 方向导轨， 10喷胶阀， 11送纸电机， 13光电检测器， 16立柱；
图 2为本发明底座与托纸板结构关系的主视图；
图 3为本发明底座与托纸板结构关系的俯视图， 图中： 14 卸纸开口，
15 滑块；
图 4是打印机工作流程图；
图 5是盲文喷射脉冲电信号图；
图 6是 JP特开 2000-354805A附图。 具体实施方式
如图 1所示， 本发明提供的盲文打印装置包括取纸机构、 送纸机构、 打印机构、 固化光源和卸纸机构五个部分， 其中取纸机构、 打印机构、 固 化光源和卸纸机构四个部分依此顺序排列安装在底座 6上方。 底座 6内装 有 X方向导轨， 送纸机构安装在底座 6内的 X方向导轨内， 送纸机构在 X 方向导轨内运动。 取纸机构通过支架安装在底座 6—端的上方， 两根立柱 16在底座 6中部架起打印机构的 Y方向导轨，固化光源 8的两端通过支架 分别固定在两根立柱 16的侧壁上。 卸纸机构安装在底座 6的另一端。送纸 机构在取纸机构、 打印机构、 固化光源以及卸纸机构的下方穿梭运动。
取纸机构安装在底座 6前端， 通过支架固定在底座 6上， 取纸机构包 括上部输入纸张的纸盒 1、下部输出纸张的导向槽 3和中部的搓纸器 2。取 纸机构可以是能够完成取纸功能的搓纸器， 或同时具有打印功能的普通打 印机； 本发明釆用现有成品的打印机作为取纸机构。 用支架把打印机固定 在底座 6上并架起一定高度， 打印机本身带有的纸盒 1用于存放打印纸。 取纸机构的下出纸口安装一导向槽 3 , 导向槽 3为两侧带挡边的滑道， 导 向槽 3的宽度比打印纸页面略宽。 导向槽 3固定在打印机的出纸口。 导向 槽 3对搓纸器 2推出的纸张运动具有导向作用， 导向槽 3的末端比托纸板 4略高，托纸板 4的水平运动不会碰上导向槽 3。打印机的走纸按钮受到触 发时， 就会从纸盒 1中搓出一张纸， 并不经打印直接送出。 如果希望此时 打印明文， 并最终打印盲文明文混排的文档， 可以在执行明文文档打印。 无论是否需要打印明文， 搓纸器 2执行的结果都是把纸盒 1中的纸张单张 取出并送入导向槽 3 , 导向槽 3的导向作用可以使搓纸器 2 (或打印机）下 传的纸前端顺利进入托纸板 4上的取纸电磁铁铁夹子 5的开口中。
如图 2和图 3所示， 底座 6是一矩形框结构， 底座 6—侧安装了 X方 向导轨、 丝杠和送纸电机 11。 Y方向导轨内的滑块 15上固定了托纸板 4 , 托纸板 4上安装了两支取纸电磁铁夹子 5和两支光电检测器 13 , 托纸板 4 上向着卸纸电磁铁夹子 7的一边开有两个卸纸开口 14。
送纸机构的功能是把送来的纸夹紧并送到需要打印的位置。 送纸机构 釆用平板式送纸方法， 其结构如图 2和图 3所示。 送纸机构的核心是托纸 板 4 , 托纸板 4比打印纸（如， A4规格）尺寸略大。 托纸板 4通过连接件 固定在 X方向导轨的滑块 15上。 X方向导轨固定在底座 6内的一侧。 X 方向导轨装有送纸电机 11 , X方向导轨内装有丝杠。 送纸电机 11通过丝 杠的转动带动滑块 15和托纸板 4运动。托纸板 4后部两侧装有两支取纸电 磁铁夹子 5和两支光电检测器 13。 取纸机构的搓纸器 2在托纸板 4上方， 纸张由搓纸器 4送来， 从纸张送来的方向讲， 取纸电磁铁夹子 5在前， 光 电检测器 13在后， 两支取纸电磁铁夹子 5的间距和纸张宽度一致。纸张从 搓纸器 2推入时， 纸张的两侧分别经过两支取纸电磁铁夹子 5的开口和两 个光电检测器 13。 当纸张被光电检测器 13检测到后， 取纸电磁铁夹子 5 上电， 纸张被夹紧。 纸张被夹紧后， 送纸电机 11带动丝杠转动， 作为丝母 的滑块 15沿 X方向导轨运动。
打印机构安装在底座 6的中部。 打印机构由打印电机、 Y方向导轨 9 以及安装在 Y方向导轨滑块上的喷胶阀 10组成。 底座 6中部两侧安装两 才艮竖直的立柱 16 ,打印机构的 Y方向导轨 9的两端固定在两^ =艮立柱 16上。 打印机构 Y方向导轨 9的一端装有打印电机， Y方向导轨的滑块上固定喷 胶阀 10 ,喷胶阀 10的喷嘴向下指向托纸板 4。打印电机通过丝杆转动带动 滑块和喷胶阀 10在沿 Y方向导轨往返运动。 Y方向导轨与底座送纸机构 的 X方向导轨方向相垂直。
打印的动作主要由喷胶阀 10沿 Y方向导轨 9的扫描喷射动作来实现。 喷射胶水可釆用粘度大于 2000的高粘度可固化胶， 如紫外胶 (OG154) , 喷 出每个盲文点的体积在 0.3uL ~ luL之间， 点高度大于 0.3mm。 喷胶阀 10 每一个单程运动在控制脉冲的作用下可以完成一行盲文点的喷射。 喷胶阀
10可以釆用高速压电喷胶阀如 EFD公司的 744MV-100。该喷胶阀可以在 2 毫秒之内完成一个盲文点位的喷射， 额定的喷点工作频率是 150Hz。 对于 A4打印纸， 一行的点数在 60之内， 所以可以在 0.5秒内完成一行盲文点 的喷射。 控制器只需要根据打印文档的内容， 发送喷射脉冲序列信号， 即 可完成一行盲文点的打印任务。 施加给喷胶阀的控制脉冲与要打印的盲文 点是——对应的如图 5所示。 喷胶阀 10沿 Y方向导轨 9往返运动并且同 时喷射盲文点。 喷胶阀 10在 Y方向每完成一行盲文的点喷射送纸机构的 托纸板 4在 X方向前进一个行距， 这样逐行扫描喷射， 最终完成整页纸张 的盲文点的喷射。
固化光源 8的两端分别固定在两根立柱 16的侧壁上。托纸板 4从固化 光源 8下方通过固化光源 8。 固化光源 8是一排紫外 LED, 总宽度和打印 纸张的宽度相当， LED发光面向下朝向托纸板 4, LED发光面距托纸板 4 的间距 1厘米。 紫外 LED可以使紫外固化胶很快由液体凝固为固体。
固化光源 8和喷胶阀 10分别位于立柱 16的两侧，在喷胶阀 10打印的 过程中， 纸张不断地被逐行喷射盲文点， 托纸板 4不断沿 X方向前进， 已 被喷射的区域会逐渐进入固化光源 8的下方，并经过固化光源 8的照射区。 这种边打印边固化的方式， 可以提高整个流程的速度， 提高印刷品的生产 效率。 而且这种 LED布置方式缩短了整机 X方向长度尺寸， 减小了整机 体积。 固化光源 8釆用紫外 LED, 为了提高打印速度要求紫外光具有高的 光强度， 常规的紫外高压汞灯功率大、 发热严重对于纸张具有安全隐患， 而普通荧光灯的紫外光功率密度比较小，用它来固化需要很长的固化时间， 如果和上述高速打印配套使用必然会增加固化流程的机械尺寸， 所以釆用 紫外 LED作为固化光源。 紫外 LED具有高的发光效率， 低的热量， 所以 本发明釆用多支 UVLED沿喷射方向排列为一排， 同时这一排 UVLED布 置在沿 X方向距喷胶阀 10较近的位置， 以便喷射的胶点尽快地进入固化 区域， 这样的好处是提高了点的质量和整页的打印输出速度， 以及缩短了 整机的长度尺寸。在一排 LED固化效果不理想的情况下可以考虑布置两排 甚至多排 UVLED。
卸纸机构即卸纸电磁铁夹子 7 , 卸纸电磁铁夹子 7安装在底座 6的尾 端。 它和托纸板 4处于同一水平高度。 托纸板 4从下部输运纸张， 通过喷 胶阀 10打印， 固化光源 8固化后到达卸纸电磁铁夹子 7。 托纸板 4上表面 和卸纸电磁铁夹子 7的开口高度一致， 托纸板上开有卸纸开口 14, 卸纸电 磁铁夹子可以进入卸纸开口 14中，这时托纸板 4上的纸张可以水平地进入 卸纸电磁铁夹子 7的开口 14中。
所述取纸电磁铁夹子 5和卸纸电磁铁夹子 7由电磁铁制作。 电磁铁由 滑杆、 多砸线圈绕制的线包和复位弹簧组成。 滑杆具有铁磁性， 滑杆穿过 线包中心。 通电时滑杆沿滑杆轴向动作， 断电时滑杆在复位弹簧作用下复 位。 滑杆一端装有档片， 档片为一小块薄板， 用金属材料或塑料制作， 档 片的入口倒角便于纸张进入。 在电磁铁通电、 断电情况下， 滑杆带动档片 运动， 档片可以压紧或松开档片下的纸张， 实现夹紧和松开纸张的功能。
本发明的工作流程如图 4所示， 顺序执行取纸、 送纸、 打印固化、 卸 纸。 整套的动作是在计算机或其他控制器的控制下完成。
纸盒 1中的纸张， 可以被自动的取出， 经搓纸器 2下传至送纸机构的 托纸板 4上，托纸板上的光电检测器 13可以检测到纸张到位与否，到位后 自动把纸张送到打印机构喷胶阀 10下， 喷胶阀 10逐行打印， 固化光源 8 把喷射的盲文胶点依次固化。 打印完毕后， 托纸板 4到达卸纸电磁铁夹子 7 , 卸纸电磁铁夹子 7卸纸， 托纸板 4返回到取纸工位， 自动进入下一工作 周期。 整个工作周期完全自动化地实现了从纸盒到成品的输出， 实现了全 自动化功能。
取纸： 如图 1所示， 取纸是把纸盒 1中的打印纸单张取出送到托纸板 4的过程。 首先托纸板 4回到①位置， 然后搓纸器 2 (普通打印机）把纸盒 中的一叠纸搓出单张，打印上明文或直接传送至导向槽 3 ,纸张在搓纸器 2 (普通打印机）的推力下经导向槽 3顺利进入托纸板 4, 纸张前沿在导向槽 3的导向作用下进入取纸电磁铁夹子 5 , 光电检测器检测到纸张后，取纸电 磁铁夹子 5通电夹紧纸张。
送纸： 取纸完毕后， 纸张的大部分还留在导向槽 3中， 但纸张已被取 纸电磁铁夹子 5夹紧。这时托纸板 4在送纸电机 11拖动下沿 X方向导轨 6 向喷胶阀 10下方移动，把纸张送纸喷胶阀 10的正下方，如图 1中位置②， 准备打印。
打印： 打印和固化是在 X向送纸机构和喷胶阀 10沿 Y方向导轨 9运 动的配合下同时进行的。 打印过程中喷胶阀 10只沿 Y方向导轨做往返运 动，在控制信号的作用下喷胶阀 10每一次单程运动可以完成一行盲文的胶 点的喷射， 一次单程运动结束后， 托纸板 4带动纸张沿 X方向步进一个行 距。这样 Y方向的喷胶运动和 X方向的送纸运动交替进行， 可以逐行完成 整页盲文的喷胶打印工作。 喷胶阀 10 的盲文喷射动作在往返运动中都进 行， 所以一个往返运动将喷射两行盲文。
固化： 固化是把打印过程喷胶阀喷出的盲文点由液体固化为固体。 固 化过程不是打印完全结束后才进行。 固化光源 8紫外 LED, 距喷胶阀比较 近， 喷胶阀 10在逐行喷射的过程中， 送纸机构不断把托纸板 4向 X方向 推进， 当托纸板 4部分区域进入固化光源 8下方是， 固化工作就开始了。 这是固化光源 8和喷胶阀 10的喷胶工作都同时进行。 喷胶阀 10打印工作 完毕后，托纸板 4向 X方向继续运动，直至整个纸面的盲文胶点全部固化， 固化工作才完全结束。
卸纸： 在纸打印完毕而且完全固化之后， 托纸板 4把纸张送至图 1位 置③。 纸张前沿送入卸纸电磁铁夹子 7的开口中， 卸纸电磁铁夹子 7上电 夹紧纸张， 同时取纸电磁铁夹子 5断电松开纸张， 托纸板 4由位置③向位 置运动①， 纸张由于卸纸电磁铁夹子 7夹紧而仍留在位置③， 当托纸板 4 返回图 1位置①时纸张完全脱离托纸板 4, 卸纸电磁铁夹子 7断电松开， 纸张在重力作用下落下。
整个打印工作经过上述五个工作流程完成一个工作周期， 同时可以进 入下一个盲文打印周期。

Claims

权 利 要 求
1、 一种盲文打印装置， 其特征在于， 包括取纸机构、 送纸机构、 打印 机构、 固化光源（8)和卸纸机构； 取纸机构、 打印机构、 固化光源和卸纸 机构顺序排列安装在底座（6)上方； 取纸机构安装在底座（6) 的一端， 组成卸纸机构的卸纸电磁铁夹子（ 7 )安装在底座（ 6 )的另一端； 底座（ 6 ) 内装有 X方向导轨， 送纸机构安装在底座（6) 内的 X方向导轨内， 送纸机 构在 X方向导轨内运动； 送纸机构在取纸机构、 打印机构、 固化光源 （8) 和卸纸机构的下方穿梭运动； 打印机构固定在底座（ 6 )中部两侧的两根立 柱（16)上方； 固化光源 （8) 的两端固定在两根立柱 (16)的侧壁上； 固化 光源 （8)和打印机构的喷胶阀 （10)分别位于立柱（16) 的两侧。
2、根据权利要求 1所述的盲文打印装置， 其特征在于， 所述取纸机构 的下出纸口安装一导向槽（3), 导向槽（3)为两侧带挡边的滑道， 导向槽 (3) 的宽度比打印纸页面略宽； 导向槽 （3) 的末端比托纸板（4)略高。
3、 根据权利要求 1所述的盲文打印装置， 其特征在于， 所述送纸机构 的托纸板（4) 固定在底座（6) 内的 X方向导轨的滑块上， X方向导轨装有 送纸电机（11)、 丝杠和滑块， 送纸电机 (11)通过丝杠的转动带动滑块和托 纸板 ( 4 )运动； 托纸板 ( 4 )后部两侧装有两支取纸电磁铁夹子（ 5 )和两 支光电检测器（13)。
4、 根据权利要求 3所述， 其特征在于， 光电检测器检测到从取纸机构 的搓纸器 （2)送来的纸张后， 取纸电磁铁夹子 （5)上电夹紧纸张， 然后 送纸电机（11 )驱动滑块和托纸板运动沿 X方向运动， 实现送纸功能。
5、 根据权利要求 1所述的盲文打印装置， 其特征在于， 打印机构的喷 胶阀 （10)安装在打印机构的 Y方向导轨（9) 的滑块上； 喷胶阀 （10) 的 喷嘴向下指向托纸板（4); 喷胶阀 （10)沿所述 Y方向导轨（9)运动， 喷 胶阀 （10) 的运动方向与底座（6)送纸机构的 X方向导轨方向相垂直。
6、 根据权利要求 5所述的盲文打印装置， 其特征在于， 固化光源 （8) 由多支紫外发光二级管组成， 一排或多排排列的紫外发光二级管的总宽度 和打印纸张的宽度相等， 紫外发光二级管的发光面朝向托纸板（4)。
7、根据权利要求 1或 3所述的盲文打印装置， 其特征在于， 所述卸纸 电磁铁夹子（ Ί )和所述托纸板（ 4 )的取纸电磁铁夹子（ 5 )由电磁铁制成， 在卸纸电磁铁夹子 （7) 夹紧纸张， 托纸板（4)上的取纸电磁铁夹子 （5) 松开纸张时， 托纸板（4)远离卸纸电磁铁夹子（7), 纸张被卸纸电磁铁夹 子（7)从托纸板上（4)拉出， 然后卸纸电磁铁夹子（7)松开纸张， 纸张 因重力而落下来， 实现卸纸功能。
PCT/CN2009/074244 2009-04-24 2009-09-27 一种盲文打印装置 WO2010121464A1 (zh)

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