WO2019085647A1 - 一种可转换排纸路径的前端进纸前端出纸的打印机 - Google Patents

一种可转换排纸路径的前端进纸前端出纸的打印机 Download PDF

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Publication number
WO2019085647A1
WO2019085647A1 PCT/CN2018/104950 CN2018104950W WO2019085647A1 WO 2019085647 A1 WO2019085647 A1 WO 2019085647A1 CN 2018104950 W CN2018104950 W CN 2018104950W WO 2019085647 A1 WO2019085647 A1 WO 2019085647A1
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Prior art keywords
paper
paper discharge
discharge mechanism
driven roller
guide
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PCT/CN2018/104950
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English (en)
French (fr)
Inventor
林毅
Original Assignee
林毅
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Filing date
Publication date
Application filed by 林毅 filed Critical 林毅
Priority to AU2018359124A priority Critical patent/AU2018359124B2/en
Priority to US16/481,830 priority patent/US11312591B2/en
Priority to CA3048744A priority patent/CA3048744C/en
Priority to KR1020197018747A priority patent/KR102188579B1/ko
Priority to JP2019549437A priority patent/JP6703651B2/ja
Priority to EP18873666.4A priority patent/EP3578489B1/en
Publication of WO2019085647A1 publication Critical patent/WO2019085647A1/zh

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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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/009—Diverting sheets at a section where at least two sheet conveying paths converge, e.g. by a movable switching guide that blocks access to one conveying path and guides the sheet to another path, e.g. when a sheet conveying direction is reversed after printing on the front of the sheet has been finished and the sheet is guided to a sheet turning path for printing on the back
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/58—Article switches or diverters
    • B65H29/60—Article switches or diverters diverting the stream into alternative paths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/24—Pile receivers multiple or compartmented, e.d. for alternate, programmed, or selective filling
    • 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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
    • 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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/02—Rollers
    • 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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • 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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/26—Registering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/12—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers
    • B65H29/125—Delivering or advancing articles from machines; Advancing articles to or into piles by means of the nip between two, or between two sets of, moving tapes or bands or rollers between two sets of rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/20—Delivering or advancing articles from machines; Advancing articles to or into piles by contact with rotating friction members, e.g. rollers, brushes, or cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/52—Stationary guides or smoothers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/58—Article switches or diverters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/02—Pile receivers with stationary end support against which pile accumulates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/60—Other elements in face contact with handled material
    • B65H2404/63—Oscillating, pivoting around an axis parallel to face of material, e.g. diverting means
    • B65H2404/632—Wedge member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/111—Bottom
    • B65H2405/1115—Bottom with surface inclined, e.g. in width-wise direction
    • B65H2405/11151—Bottom with surface inclined, e.g. in width-wise direction with surface inclined upwardly in transport direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/30—Other features of supports for sheets
    • B65H2405/33—Compartmented support
    • B65H2405/332—Superposed compartments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
    • B65H2407/20—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes for manual intervention of operator
    • B65H2407/21—Manual feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/113—Size
    • B65H2701/1131—Size of sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/12—Single-function printing machines, typically table-top machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/15—Digital printing machines

Definitions

  • the present invention relates to a printing apparatus, and in particular to a printer for discharging paper from a leading end of a front end of a switchable paper discharge path.
  • the existing laser printer generally adopts a printing structure in which the front end paper feed end or the front end paper feed end is ejected, but when the existing laser printer is used as an output device and an input device, a host computer, a display, a touch screen, etc.
  • the existing printer structure is extremely inconvenient.
  • the printer 120 is configured as an output device and is disposed in a closed chassis together with other devices.
  • the front side of the chassis is provided with a printing paper exit 1101, and the receiving tray 130 is disposed near the outlet 1101.
  • the specific embodiment is as follows: the transfer and discharge system is increased at a position of 130 mm of the original discharge mechanism of the machine, and the distance from the transfer and discharge system to the front discharge port of the machine is 170 mm, which ensures that the A4 paper is discharged more than 130 mm above the front, and the A5 paper is discharged 20 mm beyond the front. the above.
  • this solution can solve the technical problem of paper exit at the front end of the laser printer, when printing on different paper webs such as A4 and A5 paper, the front end surface of the paper web is different from the front end surface of the printer casing, and the use is not beautiful.
  • a printer for discharging paper from a leading end of a paper-conveying end of a switchable paper discharge path comprising a casing and a paper discharge unit, the paper discharge unit comprising a first paper discharge mechanism and a paper discharge passage composed of upper and lower casings, the outer casing
  • the front end surface is a vertical plane A.
  • the plane A is horizontally provided with a paper feed port and a paper exit port, and the paper feed port is located below the paper exit port; and the paper discharge channel in front of the first paper discharge mechanism is convertible. Paper handling system for the paper path.
  • a paper discharge passage B is disposed between the third paper discharge mechanism and the lower casing; one end of the paper guide is rotatably fixed to the third paper discharge mechanism through a rotating shaft and a paper guide driving motor fixedly connected with the rotating shaft. Below the paper opening, the other end extends toward the third paper discharge mechanism and can be oscillated up and down under the driving of the paper guide driving motor.
  • the printer further includes a control unit, and the paper guide driving motor is electrically connected to a controller of the control unit.
  • the operation of the paper guide drive motor is connected to the controller, and the controller can automatically recognize different paper sizes to automatically convert the print path.
  • the second paper discharge mechanism and the third paper discharge mechanism comprise a second paper discharge roller and a third paper discharge roller, and the second driven paper is respectively connected to the second paper discharge roller and the third paper discharge roller.
  • the first, second, and third rows of paper rollers The roll surface speeds are equal and are connected by a gear or a belt drive;
  • the second paper discharge mechanism further includes a paper output tray, one end of which is fixed on the second driven roller holder, and the other end extends in the paper discharge direction.
  • the printer of the present invention is designed such that the front end surface is a vertical plane, and the paper feed port and the paper exit port are both located on the front end surface, when the printer is configured as an all-in-one machine When using, it is very convenient to put paper and take paper, and the paper exit is close to the front side cover of the integrated machine, and the paper is discharged smoothly.
  • the invention adopts a paper conveying system with a switchable path in a paper discharge passage in front of the first paper discharge mechanism, and prints on paper of different specifications, such as when the A4 paper is vertically fed in and out, and the paper can be discharged when the A5 paper enters and exits laterally.
  • the front end of the paper is equal to the distance from the front end of the printer, neat and beautiful.
  • Figure 3 is a schematic view showing the overall structure of an embodiment of the printer of the present invention.
  • Fig. 6 is a view showing the connection structure of the paper guide of the printer of the first embodiment of the present invention and the third driven roller holder.
  • Fig. 8 is a schematic structural view of a connecting portion of the third driven roller holder of Fig. 6.
  • a printer includes a casing 10, and a front end surface 102 of the casing is a vertical plane A.
  • the plane A is horizontally provided with a paper feed port 30 and a paper exit port 20, and the paper feed port 30 is located at the paper exit.
  • the upper side 101 of the outer casing 10 is provided with an openable upper cover 1011.
  • the upper cover 1011 is rotatably disposed on both sides of the casing 10 through the rotating shaft 1012. The upper cover 1011 is opened to take out the paper stuck in the paper discharge passage.
  • the printer further includes a paper discharge unit 40, and the paper discharge unit 40 includes a first paper discharge mechanism 401, a paper conveying system, and a paper discharge passage 50.
  • the paper discharge path 50 is composed of a movable upper cover 1011 and a lower casing 1012.
  • the paper handling system includes a second paper discharge mechanism 402, a third paper discharge mechanism 403, and a paper guide 404.
  • the second paper discharge mechanism 402 and the third paper discharge mechanism 403 are sequentially disposed in front of the first paper discharge mechanism 401.
  • An A4 paper discharge path B is provided between the third paper discharge mechanism 403 and the lower casing 1012.
  • the second paper discharge mechanism 402 includes a second paper discharge roller 4021, a second driven roller 4022, and a second driven roller bracket 4023.
  • the second paper stick 4021 is a driving roller, and is disposed on the outer casing 10 through a rotating shaft.
  • One end of the rotating shaft is provided with a second transmission gear (not shown), and the second transmission gear is disposed on the first paper discharging roller 4011 and the first
  • a first intermediate transfer gear (not shown) between the two rows of paper sticks 4021 is drivingly coupled to a driving roller gear (not shown) of the first paper discharge mechanism 401; the second driven roller 4022 is rotated.
  • the second driven roller bracket 4023 is frictionally coupled to the second paper discharge roller 4021, and the second driven roller bracket 4023 is fixed to the bottom surface of the outer casing 10.
  • the roll surface diameter and the linear velocity of the second discharge roller 4021 are equal to the roll face diameter and the linear velocity of the first discharge roller 4011.
  • the second row of paper sticks 4021 can also be coupled to the drive roller of the first paper discharge mechanism 401 via a belt.
  • the third paper stick 4031 can also be coupled to the drive roller of the second paper discharge mechanism via a belt.
  • the paper guide 404 is disposed between the third paper discharge mechanism 403 and the second paper discharge mechanism 402, and one end thereof is disposed on the third driven roller bracket 4033 via the rotating shaft 406, and one end of the rotating shaft is connected with the paper guide.
  • Drive motor 407 see Figure 6.
  • the central portion of the paper guide 404 is provided with a coil spring 405 having one end fixedly connected to the rear side of the third driven roller holder 4033 and the other end connected to the lower side of the paper guide 404.
  • the coil spring 405 is compressed when the paper guide 404 is rotated downward, and the coil spring 405 is extended when the paper guide 404 is rotated upward.
  • the paper guide 404 and the third driven roller bracket 4033 are connected in such a manner that the two ends of the front side of the paper guide 404 are provided with protrusions 4041, as shown in FIG.
  • the first through hole 4042 is opened in the thickness direction of the 4041, and the inner wall of the through hole 4042 is provided with an axially extending key groove 4043.
  • a U-shaped protrusion 40331 is disposed at both ends of the front side surface of the third driven roller bracket 4033, and a gap larger than the thickness of the protrusion 4041 is disposed between the two convex portions of the U-shaped protrusion 40331, as shown in FIG.
  • a second through hole 40332 is formed in the U-shaped projection 40331 so as to penetrate through the thickness direction thereof.
  • the two protrusions 4041 of the paper guide are respectively engaged between the two convex portions of the U-shaped projection 40331 of the third driven roller holder.
  • the paper guide driving motor 407 is fixed on the outer casing 10, and the rotating shaft 406 passes through the second through hole 40332, and the first through hole 4042 is axially disposed on the casing 10.
  • the rotating shaft 406 is frictionally connected with the second through hole 40332, and the first The through hole 4042 is fixedly connected by a flat key provided in the key groove 4043.
  • the paper guide driving motor 407 rotates to drive the paper guide 404 to swing up and down.
  • the A5 printing paper is sequentially passed from the first paper discharge mechanism 401.
  • the second paper discharge mechanism 402 and the third paper discharge mechanism 403 are discharged, and s2 is a paper discharge route.
  • the coil spring 405 is in a compressed state; when swinging to the upper side of the paper discharge port of the second paper discharge mechanism 402, as shown in FIG. 4
  • the A4 printing paper is discharged through the first paper discharge mechanism 401, the second paper discharge mechanism 402, and the paper discharge path B, and s1 is a paper discharge path, at which time the coil spring 405 is in an extended state.
  • the automatic control paper guide driving motor 407 when the paper guide driving motor 407 is electrically connected to the controller of the control unit, when the control system recognizes that the selected printing paper is A4 paper, the automatic control paper guide driving motor 407 drives the paper guide 404 to swing upward. At the paper exit of the second paper discharge mechanism 402, A4 paper is automatically discharged from the S1 path; when the control system recognizes that the selected printing paper is A5 paper, the automatic control paper guide driving motor 407 drives the paper guide 404 to swing downward. At the paper exit of the second paper discharge mechanism 402, the A5 paper is automatically discharged from the S2 path under the support of the paper guide 404.
  • the structure of the second embodiment is basically the same as that of the first embodiment, and the same reference numerals are used for the same components as those of Figs. 3 and 4, except that the third driven roller bracket 4033 is fixed.
  • an A4 paper discharge passage B is disposed between the third paper discharge mechanism 403 and the top surface of the outer casing, that is, the upper cover 1011; and the upper end of the front side surface of the second driven roller support 4023 is provided with a paper receiving tray 4024.
  • the paper tray 4024 is for receiving the printing paper dropped from the second paper discharge roller; one end of the paper guide 404 is fixed on both sides of the outer casing 10.
  • the A4 printing paper is discharged through the first paper discharge mechanism 401, the second paper discharge mechanism 402, and the paper discharge path B, and the paper end thereof It falls on the front side of the second driven roller holder 4023 and the paper receiving tray 4024, and s1 is a paper discharge path, at which time the coil spring 405 is in a compressed state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)

Abstract

一种可转换排纸路径的前端进纸前端出纸的打印机，包括外壳（10）及排纸单元（40），排纸单元（40）包括第一排纸机构（401）及由上、下壳体（1011、1012）组成的排纸通道（50），外壳（10）的前端面为一竖直的平面A，平面A上水平设有进纸口（30）及出纸口（20），进纸口（30）位于出纸口（20）的下方；在第一排纸机构（401）前方的排纸通道（50）中设有可转换排纸路径的纸搬运系统。

Description

一种可转换排纸路径的前端进纸前端出纸的打印机 技术领域
本发明涉及打印设备，具体涉及一种可转换排纸路径的前端进纸前端出纸的打印机。
背景技术
激光打印机因其较高的打印清晰度和打印速度得到越来越广泛的应用。现有激光打印机，一般采用前端进纸上端出纸或前端进纸后端出纸的打印结构，但是当现有激光打印机作为输出设备与输入设备、主机、显示器、触摸屏等配置为一体机使用时，如医院、公共服务机构、银行等，现有的打印机结构就显得极不便利，如图1所示的一体机100，打印机120被配置为一个输出设备与其它设备一起设置在一个封闭的机箱110内，机箱的前侧设有打印纸出口1101，靠近出口1101设置接纸盘130。由于现有激光打印机的出纸方向为上端出纸，打印机出纸口距离打印纸出口1101较远，使用人员无法判断打印是否结束纸是否输出，还是缺纸或设备故障。因此，开发出一种前端进纸前端出纸的打印机具有重要的意义。
中国专利CN206872083U公布了一种前端进纸前端出纸的打印机，如图2所示，包括打印机外壳1，所述打印机外壳上设置有进纸口2和出纸口3，所述进纸口2和出纸口3均设置于外壳1的正前方，所述进纸口内设置有大容量进纸盒，所述出纸口处设置有搬送排出系统，所述大容量进纸盒的装纸容量为250页80克A4纸。具体的实施方案是：在机器原有排出机构130mm的位置增加搬送排出系统，搬送排出系统到机器正面出纸口距离为170mm，保证A4纸排出时超出前面130mm以上，A5纸排出时超出前面20mm以上。该方案虽然可以解决激光打印机前端进纸前端出纸的技术问题，但是当使用不同纸幅的纸如A4、A5纸打印时，纸幅前端面超出打印机壳体前端面的距离不同，使用不美观且A4纸排出时超出前面130mm以上容易滑落；且当A5纸设置为横向出纸时，由于搬送排出系统到机器正面出纸口距离为170mm，A5纸根本无法从出纸口排出。
发明内容
为了解决现有前端进纸前端出纸的打印机采用A4、A5纸打印，纸幅前端面超出打印机前端面的距离不同，使用不美观；A5纸横向出纸时无法从出纸口排出的技术问题，本发明提供一种可转换排纸路径的前端进纸前端出纸的打印机，保证打印时纸幅前端面超出打印机前端面的距离相等。
为此，本发明采用的技术方案是：
一种可转换排纸路径的前端进纸前端出纸的打印机，包括外壳及排纸单元，排纸单元包括第一排纸机构及由上、下壳体组成的排纸通道，所述外壳的前端面为一竖直的平面A，平面A上水平设有进纸口及出纸口，进纸口位于出纸口的下方；在第一排纸机构前方的排纸通道中设有可转换排纸路径的纸搬运系统。
进一步地，所述纸搬运系统包括第二排纸机构、第三排纸机构及导纸板；第一排纸机构、第二排纸机构、第三排纸机构依次设置，第三排纸机构靠近出纸口且与壳体间设有排纸通道B，第一排纸机构、第二排纸机构、排纸通道B组成第一排纸路径s1，第一排纸机构、第二排纸机构、第三排纸机构组成第二排纸路径s2，导纸板设于第三排纸机构与第二排纸机构之间，用于转换排纸路径。
进一步地，所述第三排纸机构与下壳体之间设有排纸通道B；导纸板的一端通过转轴及与转轴固定连接的导纸板驱动电机可转动地固定在第三排纸机构进纸口的下方，另一端向第三排纸机构延伸且可在导纸板驱动电机的驱动下做上下摆动，当摆动到靠近第二排纸机构出纸口的上方时，打印纸经第一排纸路径s1；当摆动到第二排纸机构的出纸口的下方时，打印纸经第二排纸路径s2排出。
进一步地，所述第三排纸机构与上壳体之间设有排纸通道B；导纸板的一端通过转轴及与转轴固定连接的导纸板驱动电机可转动地固定在第三排纸机构进纸口的上方，另一端向第三排纸机构延伸且可在导纸板驱动电机的驱动下做上下摆动，当摆动到靠近第二排纸机构出纸口的下方时，打印纸经第一排纸路径s1排出；当摆动到第二排纸机构的出纸口的上方时，打印纸经第二排纸路径s2排出。
进一步地，所述打印机还包括控制单元，所述导纸板驱动电机与控制单元的控制器电连接。将导纸板驱动电机的运转与控制器连接，可通过控制器自动识别不同的纸张尺寸，从而自动转换打印路径。
进一步地，所述导纸板上设有螺旋弹簧，螺旋弹簧的一端固定，另一端与导纸板的下侧面连接，螺旋弹簧与导纸板的连接点位于导纸板的中部，螺旋弹簧用于支持导纸板。导纸板在弹簧的弹力支持下可稳定其位置，且可通过设定导纸板驱动电机的负荷在弹簧弹力范围内来限定电机的转动从而限定导纸板的定位。
进一步地，所述第二排纸机构、第三排纸机构包括第二排纸棍、第三排纸棍，分别与第二排纸棍、第三排纸棍摩擦传动连接的第二从动辊、第三从动辊，及用于支持第二从动辊、第三从动辊的第二从动辊支架、第三从动辊支架；第一、第二、第三排纸棍的辊面线速度相等，且通过齿轮或皮带传动连接；所述第三排纸机构还包括出纸盘，出纸盘一端固定在第三从动辊支架上，另一端沿出纸方向延伸。利用打印机原有动力系统，只增加齿轮或皮带传动驱动第二、第三排纸棍转动，结构简单，控制方便，运行可靠。第三排纸机构与下壳体之间设有排纸通道B时，通过在第三排纸机构上设置出纸盘来承托打印纸。
进一步地，所述第二排纸机构、第三排纸机构包括第二排纸棍、第三排纸棍，分别与第二排纸棍、第三排纸棍摩擦传动连接的第二从动辊、第三从动辊，及用于支持第二从动辊、第三从动辊的第二从动辊支架、第三从动辊支架；第一、第二、第三排纸棍的辊面线速度相等，且通过齿轮或皮带传动连接；所述第二排纸机构还包括出纸盘，出纸盘一端固定在第二从动辊支架上，另一端沿出纸方向延伸。利用打印机原有动力系统，只增加齿轮或皮带传动驱动第二、第三排纸棍转动，结构简单，控制方便，运行可靠。第三排纸机构与上壳体之间设有排纸通道B时，通过在第二排纸机构上设置出纸盘来承托打印纸。
进一步地，所述第二排纸机构与出纸口的间距为200～250mm，第三排纸机构与出纸口的间距为50～100mm。当用于A4、A5打印机时，A4纸竖向进出，A5纸横向进出，可使A4或A5纸的出纸前端与出纸口的距离相等，且为在50～100mm范围内，方便使用者拿取且整齐美观，出纸前端与出纸口的距离太大容易被人碰触而使打印纸掉落或撕裂，太小不方便使用者拿取。
进一步地，所述排纸单元的上壳体设有可开合的上盖，打开上盖可将卡在排纸通道中的纸取出。通过打开上盖的方式拿取卡纸，使用方便且打印机整体设计美观。
本发明的有益效果：与现有技术相比，本发明的打印机其壳体设计为前端面为一竖直平面，进纸口与出纸口均位于前端面上，当打印机被配置为一体机使用时，放纸取纸极为便利，且出纸口靠近一体机前侧盖，出纸顺畅。本发明通过在第一排纸机构前方的排纸通道中设有可转换路径的纸搬运系统，当使用不同规格的纸打印，如当A4纸竖向进出，A5纸横向进出时可使出纸的纸前端面超出打印机前端面的距离相等，整齐美观且拿取便利。
附图说明
图1是现有激光打印机被配置为一体机时的示意图。
图2是现有前端进纸前端出纸的打印机的整体结构示意图。
图3是本发明的打印机的一种实施例的整体结构示意图。
图4是本发明的实施例1的打印机的第一种排纸路线的结构示意图。
图5是本发明的实施例1的打印机的第二种排纸路线的结构示意图。
图6是本发明的实施例1的打印机的导纸板与第三从动辊支架的连接结构示意图。
图7是图6的导纸板的连接部的结构示意图。
图8是图6的第三从动辊支架的连接部的结构示意图。
图9是本发明的实施例2的打印机的第一种排纸路线的结构示意图。
图10是本发明的实施例2的打印机的第二种排纸路线的结构示意图。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将结合附图及一种适用于A4纸和A5打印的打印机实施方式对本发明的技术方案进行清楚、完整地描述。
在以下的描述中，以图2所示打印机的方位为基准，打印纸出纸的方向为本打印机的前方，反之为后。
实施例1
参见图3，一种打印机，包括外壳10，所述外壳的前端面102为一竖直的平面A，平面A上水平设有进纸口30及出纸口20，进纸口30位于出纸口20的下方。外壳10的上侧面101上设有可开合的上盖1011，上盖1011通过转轴1012转动设于壳体10的两侧面上，打开上盖1011可将卡在排纸通道中的纸取出。
参见图4、图5，所述打印机还包括排纸单元40，排纸单元40包括第一排纸机构401、纸搬运系统及排纸通道50。排纸通道50由可活动的上盖1011与下壳体1012组成。
纸搬运系统包括第二排纸机构402、第三排纸机构403及导纸板404。第二排纸机构402、第三排纸机构403依次设于第一排纸机构401的前方。第三排纸机构403与下壳体1012之间设有A4纸排纸通道B。
第二排纸机构402包括第二排纸棍4021、第二从动辊4022及第二从动辊支架4023。第二排纸棍4021为主动辊，通过转轴设于外壳10上，其转轴的一端套装第二传动齿轮(图中未示出)，第二传动齿轮通过设于第一排纸棍4011与第二排纸棍4021之间的第一中间过渡齿轮(图中未示出)与第一排纸机构401的主动辊齿轮(图中未示出)传动连接；第二从动辊4022转动设于第二从动辊支架4023上，与第二排纸棍4021摩擦转动连接，第二从动辊支架4023固定在外壳10的底面上。第二排纸棍4021的辊面直径及线速度与第一排纸棍4011的辊面直径及线速度相等。
在其他实施例中，第二排纸棍4021也可通过皮带与第一排纸机构401的主动辊传动连接。
第三排纸机构403包括第三排纸棍4031、第三从动辊4032、第三从动辊支架4033及出纸盘4034。第三排纸棍4031为主动辊，通过转轴设于外壳10上，其转轴的一端套装第三传动齿轮(图中未示出)，第三传动齿轮通过设于第二排纸棍4021与第三排纸棍4031之间的第二中间过渡齿轮(图中未示出)与第二传动齿轮(图中未示出)传动连接；第三从动辊4032转动设于第三从动辊支架4033上，与第三排纸棍4031摩擦转动连接，第三从动辊支架4033固定在外壳10的侧面上，与外壳的底面1012设有A4纸排出通道B。出纸盘4034一端固定在第三从动辊支架4033的前侧面上，另一端沿出纸方向延伸。第三排纸棍4031的辊面直径及线速度与第二排纸棍4021的辊面直径及线速度相等。
在其他实施例中，第三排纸棍4031也可通过皮带与第二排纸机构的主动辊传动连接。
在本实施例中，导纸板404设于第三排纸机构403与第二排纸机构402之间，其一端通过转轴406设于第三从动辊支架4033上，转轴的一端连接有导纸板驱动电机407，参见图6。导纸板404的中部设有螺旋弹簧405，螺旋弹簧405的一端与第三从动辊支架4033的后侧面固定连接，另一端与导纸板404的下侧面连接。当导纸板404向下转动时螺旋弹簧405压缩，当导纸板404向上转动时螺旋弹簧405伸长。
参见图6～8，在本实施例中，导纸板404与第三从动辊支架4033的连接方式为：导纸板404的前侧面的两端设有凸起4041，如图7所示，凸起4041沿其厚度方向开设有第一通孔4042，通孔4042的内壁设有轴向贯通的键槽4043。第三从动辊支架4033的前侧面的两端设有U形凸起40331，U形凸起40331的两个凸起部之间设有大于凸起4041的厚度的间距，如图8所示，U形凸起40331中沿其厚度方向贯通开设有第二通孔40332。导纸板的两只凸起4041分别卡合在第三从动辊支架的U形凸起40331的两个凸起部之间。导纸板驱动电机407固定在外壳10上，其转轴406穿过第二通孔40332、第一通孔4042轴设在壳体10上，转轴406与第二通孔40332摩擦转动连接，与第一通孔4042通过设置在键槽4043中的平键固定连接。导纸板驱动电机407转动，带动导纸板404上下摆动，当摆动到靠近第二排纸机构402出纸口的下方时，如图5所示，A5打印纸依次经由从第一排纸机构401、第二排纸机构402、第三排纸机构403排出，s2为纸排出路线，此时螺 旋弹簧405处于压缩状态；当摆动到第二排纸机构402的出纸口的上方时，如图4所示，A4打印纸经由第一排纸机构401、第二排纸机构402、排纸通道B排出，s1为纸排出路线，此时螺旋弹簧405处于伸长状态。
在本实施例中，设置第二排纸机构402与出纸口的间距D1为235mm，第三排纸机构403与出纸口的间距为85mm，当打印纸为A4纸时，A4纸竖向进出，选择打印路径S1，A4经第二排纸机构402排出后，A4纸末端落在第二从动辊支架4022的前侧面且其后端面与第二从动辊支架的前侧面齐平，即设定第二从动辊支架4023的前侧面到其中心线的距离为10mm，A4的长度为300mm，此时A4纸的前端面超出打印机出纸口的距离即为75mm；当打印纸为A5纸时，A5纸横向进出，选择打印路径S2，A5纸经第三排纸机构403排出后，其纸末端落在第三从动辊支架4033的前侧面及出纸盘4034上，A5纸的后端面与第三从动辊支架4033的前侧面齐平，即设定第三从动辊支架4033的前侧面到其中心线的距离为10mm，A5的宽度为150mm，此时A5纸的前端面超出打印机出纸口的距离即为75mm。
在其他实施例中，第二排纸机构402与出纸口的间距D1可以根据应用场所的需要在200～250mm或更宽范围内选择，第三排纸机构403与出纸口的间距D2可以在50～100mm或更宽范围内选择，只要满足需要即可。
在本实施例中，将导纸板驱动电机407与控制单元的控制器电连接时，当控制系统识别到所选打印纸为A4纸时，自动控制导纸板驱动电机407带动导纸板404向上摆动高于第二排纸机构402的出纸口，A4纸即自动从S1路径排出；当控制系统识别到所选打印纸为A5纸时，自动控制导纸板驱动电机407带动导纸板404向下摆动低于第二排纸机构402的出纸口，A5纸即在导纸板404的承托下自动从S2路径排出。
实施方式2
参见图9、图10，实施方式2的结构与实施方式1基本相同，对于相同的零部件采用了与图3、图4相同的标号，不同之处仅在于：第三从动辊支架4033固定在外壳10的底面上，第三排纸机构403与外壳的顶面即上盖1011之间设有A4纸排出通道B；第二从动辊支架4023的前侧面的上端设有接纸盘4024，接纸盘4024用于承接从第二排纸棍掉落的打印纸；导纸板404的一端固定在外壳10的两侧面上。
在实施方式2中，导纸板驱动电机407转动，带动导纸板404绕转轴406上下摆动，当摆动到靠近第二排纸机构402出纸口的上方时，如图10所示，A5打印纸依次经由从第一排纸机构401、第二排纸机构402、第三排纸机构403排出，其纸末端落在第三从动辊支架4033的前侧面，s2为纸排出路线，此时螺旋弹簧405处于伸长状态。当摆动到第二排纸机构402的出纸口的下方时，如图9所示，A4打印纸经由第一排纸机构401、第二排纸机构402、排纸通道B排出，其纸末端落在第二从动辊支架4023的前侧面及接纸盘4024上，s1为纸排出路线，此时螺旋弹簧405处于压缩状态。
以上说明书中未做特别说明的部分均为现有技术，或者通过现有技术既能实现。

Claims (10)

  1. 一种可转换排纸路径的前端进纸前端出纸的打印机，包括外壳及排纸单元，排纸单元包括第一排纸机构及由上、下壳体组成的排纸通道，其特征在于，所述外壳的前端面为一竖直的平面A，平面A上水平设有进纸口及出纸口，进纸口位于出纸口的下方；在第一排纸机构前方的排纸通道中设有可转换排纸路径的纸搬运系统。
  2. 如权利要求1所述的打印机，其特征在于，所述纸搬运系统包括第二排纸机构、第三排纸机构及导纸板；第一排纸机构、第二排纸机构、第三排纸机构依次设置，第三排纸机构靠近出纸口且与壳体间设有排纸通道B，第一排纸机构、第二排纸机构、排纸通道B组成第一排纸路径s1，第一排纸机构、第二排纸机构、第三排纸机构组成第二排纸路径s2，导纸板设于第三排纸机构与第二排纸机构之间，用于转换排纸路径。
  3. 如权利要求2所述的打印机，其特征在于，所述第三排纸机构与下壳体之间设有排纸通道B；导纸板的一端通过转轴及与转轴固定连接的导纸板驱动电机可转动地固定在第三排纸机构进纸口的下方，另一端向第三排纸机构延伸且可在导纸板驱动电机的驱动下做上下摆动，当摆动到靠近第二排纸机构出纸口的上方时，打印纸经第一排纸路径s1；当摆动到第二排纸机构的出纸口的下方时，打印纸经第二排纸路径s2排出。
  4. 如权利要求2所述的打印机，其特征在于，所述第三排纸机构与上壳体之间设有排纸通道B；导纸板的一端通过转轴及与转轴固定连接的导纸板驱动电机可转动地固定在第三排纸机构进纸口的上方，另一端向第三排纸机构延伸且可在导纸板驱动电机的驱动下做上下摆动，当摆动到靠近第二排纸机构出纸口的下方时，打印纸经第一排纸路径s1排出；当摆动到第二排纸机构的出纸口的上方时，打印纸经第二排纸路径s2排出。
  5. 如权利要求3或4所述的打印机，其特征在于，还包括控制单元，所述导纸板驱动电机与控制单元的控制器电连接。
  6. 如权利要求3或4所述所述的打印机，其特征在于，所述导纸板上设有螺旋弹簧，螺旋弹簧的一端固定，另一端与导纸板的下侧面连接，螺旋弹簧与导纸板的连接点位于导纸板的中部，螺旋弹簧用于支持导纸板。
  7. 如权利要求3所述的打印机，其特征在于，所述第二排纸机构、第三排纸机构包括第二排纸棍、第三排纸棍，分别与第二排纸棍、第三排纸棍摩擦传动连接的第二从动辊、第三从动辊，及用于支持第二从动辊、第三从动辊的第二从动辊支架、第三从动辊支架；第一、第二、第三排纸棍的辊面线速度相等，且通过齿轮或皮带传动连接；所述第三排纸机构还包括出纸盘，出纸盘一端固定在第三从动辊支架上，另一端沿出纸方向延伸。
  8. 如权利要求4所述的打印机，其特征在于，所述第二排纸机构、第三排纸机构包括第二排纸棍、第三排纸棍，分别与第二排纸棍、第三排纸棍摩擦传动连接的第二从动辊、第三从动辊，及用于支持第二从动辊、第三从动辊的第二从动辊支架、第三从动辊支架； 第一、第二、第三排纸棍的辊面线速度相等，且通过齿轮或皮带传动连接；所述第二排纸机构还包括出纸盘，出纸盘一端固定在第二从动辊支架上，另一端沿出纸方向延伸。
  9. 如权利要求3或4所述所述的打印机，其特征在于，所述第二排纸机构与出纸口的间距为200～250mm，第三排纸机构与出纸口的间距为50～100mm。
  10. 如权利要求3或4所述所述的打印机，其特征在于，所述排纸单元的上壳体设有可开合的上盖，打开上盖可将卡在排纸通道中的纸取出。
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