WO2014154112A1 - 具有缓冲功能的入纸机构及使用该机构的打印装置 - Google Patents

具有缓冲功能的入纸机构及使用该机构的打印装置 Download PDF

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Publication number
WO2014154112A1
WO2014154112A1 PCT/CN2014/073790 CN2014073790W WO2014154112A1 WO 2014154112 A1 WO2014154112 A1 WO 2014154112A1 CN 2014073790 W CN2014073790 W CN 2014073790W WO 2014154112 A1 WO2014154112 A1 WO 2014154112A1
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WO
WIPO (PCT)
Prior art keywords
plate
paper
passage
paper feeding
buffer
Prior art date
Application number
PCT/CN2014/073790
Other languages
English (en)
French (fr)
Inventor
张政民
姜天信
徐善华
张继刚
董述恂
Original Assignee
山东新北洋信息技术股份有限公司
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 山东新北洋信息技术股份有限公司 filed Critical 山东新北洋信息技术股份有限公司
Priority to EP14772900.8A priority Critical patent/EP2979880B1/en
Priority to US14/780,100 priority patent/US9533518B2/en
Publication of WO2014154112A1 publication Critical patent/WO2014154112A1/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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • B41J15/042—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for loading rolled-up continuous copy material into printers, e.g. for replacing a used-up paper roll; Point-of-sale printers with openable casings allowing access to the rolled-up continuous 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
    • 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
    • B41J11/0045—Guides for printing 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/005—Forming loops or sags in webs, e.g. for slackening a web or for compensating variations of the amount of conveyed web material (by arranging a "dancing roller" in a sag of the web material)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/005—Dispensers, i.e. machines for unwinding only parts of web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/10—Arrangements for effecting positive rotation of web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/30—Arrangements for accumulating surplus web
    • B65H20/32—Arrangements for accumulating surplus web by making loops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/048—Registering, tensioning, smoothing or guiding webs longitudinally by positively actuated movable bars or rollers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof

Definitions

  • self-service terminal devices with embedded printing devices are widely used in daily life.
  • people query and print a list of bills through self-service terminal devices; in the bank self-service kiosk, people access funds and print transaction credentials through self-service terminal devices.
  • the self-service terminal equipment generally uses continuous paper to print the voucher, and the continuous paper is wound around the paper cylinder to form a paper roll.
  • the continuous paper is cut by the paper cutting device to form a single document and delivered to the user, when the paper roll is used.
  • the kiosk issues a prompt message prompting the service personnel to replace the paper roll.
  • a large outer diameter paper roll for example, a paper roll having an outer diameter of 200 - 250 mm is often used. Due to the large outer diameter of the paper roll, the weight of the paper roll is heavy, and it is affected by inertia. When the motor starts to print, the load when the motor drags the paper roll from the stationary start is the largest, and the motor is prone to the paper roll, which causes the printing content to be pressed. Shrinking problem.
  • a buffer mechanism is provided between the paper roll and the printing device, as shown in FIG.
  • the buffer mechanism 17' is disposed between the paper roll support frame 13' and the printing device, and the buffer hook 17' includes a swing arm 71', a buffer shaft 73' and an elastic member 74', and two transition rollers 1 ⁇ 2', wherein One end of the swing arm 71' is coupled to the frame (not shown) through the pivot shaft 72', and can be moved around the pivot shaft 72'; the buffer shaft 73' is disposed on the free end of the swing arm ⁇ '; One end of the elastic member 74' is connected to the frame, and the other end is connected to the swing arm 7; in the continuous paper conveying direction, the two transition rollers 16' are respectively located upstream and downstream of the buffer shaft 73', and the continuous paper 24' is fed by the paper roll 7 'Exit, passing over the transition roller 16' upstream of the buffer shaft 73' and passing under the buffer shaft 73', and then passing over the transition roller 1 ⁇ 2' downstream of the buffer shaft 73' into the print head 12' and the rubber roller Between 1 ,
  • An object of the present invention is to provide a paper feeding mechanism having a cushioning function, which is structurally simple, capable of reliably preventing paper feeding errors. It is still another object of the present invention to provide a printing apparatus using the paper feeding mechanism.
  • a paper feeding mechanism having a cushioning function comprising a frame, the frame forming a conveying passage for conveying continuous paper, and further comprising a fixed passage on a paper feeding side of the conveying passage
  • the plate and the baffle plate wherein the baffle plate has an initial position and deviates from the initial position under the compression of the continuous paper, and the baffle plate forms a paper feed path opposite to the fixed channel plate in the initial position, and the paper feed path engages with the transport path.
  • the frame includes a first passage member and a second passage member that form a conveying passage, wherein the fixed passage plate is integrally formed with the first passage member.
  • the frame includes a first passage member and a second passage member forming a conveying passage, wherein the buffer plate is mated with the second passage member.
  • the first channel member includes a first channel plate and side wall plates disposed on both sides of the first channel plate along the width direction of the conveying channel
  • the second channel member includes a second channel pole and a second channel plate edge a wall plate disposed on both sides of the conveying passage in the width direction, wherein a clamping mechanism is disposed between the side wall plate and the wall plate, and the first channel plate and the second channel plate are separated by a predetermined distance to form a conveying aisle.
  • the engaging mechanism includes a resilient hook disposed on one of the side wall panel and the wall panel and a resilient hook attached to the other of the side wall panel and the wall panel Fit the card slot.
  • the above-mentioned snap mechanism further includes a slot disposed on one of the side wall panel and the wall panel and a socket-fitted slot provided on the other of the side wall panel and the wall panel Position the block.
  • the cross section of the conveying passage in the conveying direction of the continuous paper is L-shaped, or the combination of the conveying passage and the paper feeding passage is L-shaped in the conveying direction of the continuous paper.
  • the buffer plate is movably connected to the frame, and the frame is further provided with an elastic returning element for returning the baffle plate to the initial position.
  • the buffer plate is symmetrically disposed on the two sides of the continuous paper in the width direction of the continuous paper, and the first guide post and the second guide post are disposed on the frame, and the frame is provided with a first guide groove and a second joint with the first guide post.
  • the first guiding post in the process of the buffer plate being offset from the initial position, the first guiding post is slid from the starting end of the first guiding groove to the ending end of the first guiding groove and the second guiding column is second The starting end of the guiding groove slides toward the terminating end of the second guiding groove.
  • the longitudinal direction of the first guiding groove is disposed at an angle to the longitudinal direction of the second guiding groove.
  • the length direction of the second guiding groove is parallel to the fixed channel plate, and the first guiding groove is located upstream of the second guiding groove in the conveying direction of the continuous paper.
  • the buffer plate is pivotally connected to the frame by a pivot shaft, and the buffer plate is rotated away from the initial position by being rotated about the pivot axis under the compression of the continuous paper.
  • the buffer plate is disposed on the frame in a linear translation manner, and the frame is provided with a first guiding groove for guiding the buffer plate to linearly translate.
  • the continuous paper is provided by a paper roll, and the initial section of the conveying path and the paper feed path extend in the tangential direction of the outer H of the paper roll, preferably simultaneously in the height direction of the frame.
  • a printing apparatus comprising a paper roll supporting mechanism and a printing mechanism, characterized in that it further comprises a buffering function according to the above described between the paper roll supporting mechanism and the printing mechanism The paper feeding mechanism, wherein the conveying path of the paper feeding mechanism is in communication with the paper feeding port of the printing mechanism.
  • the paper feeding mechanism with buffer function provided by the invention has a conveying passage p on the frame, and in the conveying direction of the continuous paper, the buffer plate and the fixed channel plate are located upstream of the conveying passage p, and the buffer plate has an initial position. And can be deviated from the initial position under the compression of the continuous paper, wherein the buffer plate is opposite to the fixed channel ⁇ in the initial position to form an inlet passage that engages with the conveying passage, the paper feeding passage has a unique paper inlet, and thus is continuously installed In the case of paper, the operator can only feed the continuous paper from the paper inlet into the conveying path ⁇ .
  • the paper feeding mechanism with buffer function provided by the invention not only has a buffer function by providing a buffer plate, but also has a compact fit with the frame of the paper feeding mechanism to form a unique paper inlet, thereby effectively avoiding the user.
  • the problem of installing continuous paper errors improves the usability of the product.
  • FIG 1 is a schematic structural view of a buffer mechanism provided by the prior art
  • FIG. 2 is a schematic structural view of a first embodiment of a paper feeding mechanism with a buffer function provided by the present invention
  • FIG. 3a is a buffering function provided by the present invention.
  • FIG. 1 is a schematic structural view of a buffer mechanism provided by the prior art
  • FIG. 2 is a schematic structural view of a first embodiment of a paper feeding mechanism with a buffer function provided by the present invention
  • FIG. 3a is a buffering function provided by the present invention.
  • 3b is a cross-sectional view showing the structure of the first embodiment of the paper feeding mechanism with a cushioning function provided by the present invention, wherein the baffle plate is offset from the initial position;
  • the first schematic diagram of the structure of the first embodiment of the paper feeding mechanism with buffer function provided by the present invention
  • Figure 4b is a second exploded view of the structure of the first embodiment of the paper feeding mechanism with cushioning function provided by the present invention
  • FIG. 5 is a schematic exploded view of a second embodiment of a paper feeding mechanism with a cushioning function provided by the present invention
  • FIG. 6 is a partial structural schematic view of a first embodiment of a paper feeding mechanism with a cushioning function provided by the present invention, wherein the buffer plate is at Figure 6b is a partial structural view of the first embodiment of the paper feeding mechanism with buffer function provided by the present invention, wherein the buffer plate is offset from the initial position;
  • Figure 7 is a schematic structural view of a third embodiment of a paper feeding mechanism with a cushioning function provided by the present invention
  • Figure 8a is a first schematic view of a partial structure of a paper feeding mechanism with a cushioning function according to the present invention
  • Figure 8b is a second schematic view of a partial structure of a third embodiment of the paper feeding mechanism of the present invention having a cushioning function;
  • Figure 4 is a schematic structural view of a fourth embodiment of a paper feeding mechanism having a cushioning function according to the present invention
  • Figure 1 is a cross-sectional view showing the structure of a paper feeding mechanism having a cushioning function according to a zeroth embodiment of the present invention
  • Fig. 10 is a cross-sectional view showing the structure of an embodiment of a printing apparatus using a paper feeding mechanism having a cushioning function provided by the present invention. Description of the reference numerals
  • 81 a first guiding groove ; 82, a second guiding groove; 100, a printing mechanism; 200, a paper roll supporting mechanism; 300, a paper feeding mechanism; 111, a print head;
  • the paper feeding mechanism with buffer function provided by the present invention comprises a frame 1, a buffer plate 2, at least one elastic member 3, and a fixed passage plate 4.
  • a conveying passage is arranged on the frame 1 P, the paper exit of the conveying passage P communicates with the paper inlet of the printing mechanism; in the continuous paper conveying direction, the buffer plate 2 and the fixed channel plate 4 are located upstream of the conveying passage P, and the buffer plate 2 is movably connected with the frame 1 Initial position and end position.
  • the buffer plate 2 when the buffer plate 2 is in the initial position, it is opposite to the fixed passage plate 4 to form a paper feed passage R that engages with the conveying passage P, and the paper feed passage R has a unique paper inlet, and the operator can only install the continuous paper.
  • the continuous paper is fed into the conveying path P from the paper inlet.
  • One end of the elastic returning element 3 is connected to the frame 1 and the other end is connected to the baffle plate 1. Under the action of the elastic force of the elastic returning element 3, the baffle plate 2 always has a tendency to move toward the initial position.
  • FIG. 4a is a first exploded view of the first embodiment of the paper feeding mechanism having a cushioning function provided by the present invention
  • FIG. 4b is a structural exploded view of the first embodiment of the paper feeding mechanism having a cushioning function according to the present invention. Second schematic. As shown in FIGS.
  • the frame 1 includes a first passage member and a second passage member that are coupled to each other to form a conveying passage P, wherein the first passage member includes the first passage plate 11 and the first passage plate 11 Side wall panels disposed along both sides of the width direction of the conveying passage, that is, the left side wall panel 13 and the right side wall panel 14, wherein the left side wall panel 13 and the right side wall panel 14 are disposed in parallel with each other therebetween The distance is greater than or equal to the maximum width of the continuous paper; the first passage plate 11 is located between the left side wall panel 13 and the right side wall panel 14, and is vertically connected to both the left side wall pole 13 and the right side wall panel 14.
  • the second passage member includes a second passage plate 12 that faces the first wanted plate 11 and is spaced apart by a predetermined distance to form the conveying passage P.
  • the distance between the first channel plate 11 and the second channel plate 12 is the height of the conveying path P
  • the distance between the left side wall plate 13 and the right side wall plate 14 is the width of the conveying path P.
  • the first channel plate 11 and the second channel plate 12 are both L-shaped, and in the continuous paper conveying direction, the fixed channel plate 4 is located upstream of the first channel plate 11, and the first channel plate 11 and the left side wall plate 13 And the right side wall panel 14 and the fixed channel plate 4 are integrally formed, and the second channel plate 12 is located between the left side wall plate 13 and the right side wall plate 14, and two of the second channel plate 12 along the width direction of the conveying channel
  • the side is provided with a wall panel, that is, a left wall panel 121 disposed adjacent to one end of the left side wall panel 13 and a right wall panel 122 disposed adjacent to one end of the right side wall panel 14.
  • the second channel panel 12 passes through the engaging mechanism and the left side wall
  • the plate 13 and the right side wall W are detachably connected.
  • the snap mechanism includes two snap components, the two snap components are symmetrically disposed on the left and right side walls 121 and 13 of the second channel plate 12, and the right side plate 122 and the right side of the second channel plate 12 Between the panels 14.
  • the fixed passage plate 4 is integrally formed with the first passage member, such as a plastic molded piece.
  • the snap assembly includes a resilient hook 51, a positioning block 52, a slot 61, and a slot 62, wherein the positioning block 52 is disposed on one of the second channel plate 12 or the right down wall plate 14 with a setting Width and height, the slot 62 is disposed on the other of the second channel plate 12 or the right side wall plate 14 with the opening direction perpendicular to the surface of the first channel plate 11 and, therefore, perpendicular to the first channel plate 11 moving the second channel plate 12 in the direction of the surface, the positioning block 52 can be mated with the slot 62, and the elastic hook 51 is disposed on one of the second channel plate 12 or the right side wall plate 14 The slot 61 is disposed on the other of the second channel plate 12 or the right side wall plate 14.
  • the elastic hook 51 is engaged with the card slot 61, so that the slot
  • the two-channel plate 12 is fixedly connected to the right side wall plate 14.
  • the elastic hook 51 and the positioning block 52 of the latching assembly between the second channel plate 12 and the right side wall plate 14 are disposed on the right wall plate 122 of the second channel plate 12, and the card slot 61 and the plug
  • the groove 62 is disposed on the right side wall plate 14; the elastic hook 51 and the positioning block 52 of the joint assembly between the second channel plate 12 and the left side wall plate 13 are disposed on the left wall plate 121 of the second channel plate 12,
  • the card slot 61 and the slot 62 are disposed on the left side wall panel 13.
  • the positioning blocks 52 are respectively mated with the insertion holes 62 on the left and right side panels 13 and 14, and the two elastic hooks 51 on the second passage plate 12 are respectively opposite to the left side wall 13 and the right side wall
  • the card slot 61 on the board 14 is snap-fitted to securely connect the second channel plate 12 to the left down wall plate 13 and the right side wall plate 14.
  • the second passage plate 12 is separated from the first passage plate 11 to facilitate the removal of the paper jam.
  • the baffle plate 2 is located between the left side wall panel 13 and the right side wall panel 14 of the frame 1, and is disposed opposite the fixed channel plate 4, and is located upstream of the second channel plate 12 in the continuous paper conveying direction.
  • the length direction of the baffle plate 2 extends along the width direction of the conveying passage P, and the side of the baffle plate 2 away from the second passage plate 12 is a contact portion 24, and preferably, the contact portion 24 S is disposed in a circular arc shape, which can be reduced The resistance of continuous paper during transport.
  • the baffle 2 is movably coupled to the frame 1 and has an initial position and an end position, and is movable between an initial position and an end position.
  • the baffle plate 2 is movably connected to the frame 1 through a guiding mechanism.
  • the guiding mechanism includes a plug portion disposed at both ends of the length of the baffle plate 2 and a corresponding guiding groove provided on the frame 1.
  • the plug portion and the machine on the baffle plate 2 The guide slots on the frame 1 are mated and moved along the guide slots to allow the baffle 2 to move relative to the frame 1 between an initial position and an end position.
  • the guiding groove provided on the frame 1 includes two first guiding grooves 81 and two second guiding grooves 82, wherein the two first guiding grooves 81 are symmetrically disposed on the left side wall plate 13 and the right side.
  • the guiding groove 82 is symmetrically disposed on the left wall plate 121 and the right wall plate 122 of the second channel plate 12, wherein the second guiding groove 82 is disposed adjacent to the second channel plate 12, and the length direction of the second guiding groove 82 and the drawing channel
  • the plate faces of the plates 4 are relatively parallel, and the width center line is spaced apart from the plate faces of the fixed channel plates 4 by a predetermined distance, and the second guiding grooves 82 have a set length and width; in the continuous paper conveying direction, the first guiding grooves 81
  • the first end of the first guiding groove 81 is spaced apart from the fixed channel plate 4 by a predetermined distance, and the longitudinal direction of the first guiding groove 81 extends along the direction of the second guiding port 82, the first guiding groove
  • the longitudinal direction of the 81 is disposed at an angle to the longitudinal direction of the second guide groove 82, and the first guide groove 81 has a set length and width.
  • the plugs on the baffle plate 2 each include a first guide post 21 and a second guide post 22 symmetrically disposed on both sides in the width direction of the continuous paper, wherein the first guide post 21 is located away from the second passage plate 12 of the baffle plate 2.
  • the first guide post 22 is located at one end of the baffle plate 2 adjacent to the second channel plate 12, and the first guide post 21 and the second guide post 11 are both protruded from the side of the baffle plate 1, the first guide post 21 and the first guide post 21
  • the two guide columns 22 are all S columnar, and may also be referred to as a guide column.
  • the two first guide posts 21 are respectively mated with the first guide grooves 81 on the left side wall plate 13 and the right side wall plate 14, and are movable along the length direction of the first guide groove 81, and the two second guide posts 22 are
  • the second guiding groove 82 on both sides of the second channel plate 12 is respectively inserted and engaged to move along the length direction of the second guiding groove 82, so that the buffer plate 2 can be between the initial position and the ending position relative to the frame 1. motion.
  • the first guide post 21 on the buffer plate 2 is located at an end of the first guiding groove 81 close to the first channel plate 11, the buffer plate 2 and the fixed channel plate 4
  • the paper feed passage is formed as shown in FIG. 3b.
  • the first guide post 21 on the buffer plate 2 is located at an end of the first guide groove 81 away from the first passage plate 11, and the buffer plate 2 It is disposed at an angle with respect to the first passage plate 11.
  • the second guide post 22 on the baffle plate 2 is always in the second guide groove 82 and may be along the length of the second guide groove 82.
  • the directional movement, because the second guiding groove 82 is parallel with the first channel plate 11, ensures that the distance between the end of the baffle plate 2 adjacent to the second channel plate 12 and the first channel plate 11 is constant, and is always in communication with the conveying channel P.
  • a one end of the baffle plate 2 remote from the second passage plate 12 and the first passage plate 11 form a single paper feed passage R communicating with the conveying passage P, and the paper feed passage R has a unique paper inlet.
  • the two second guiding slots 82 are disposed on the left wall panel 121 and the right wall panel 122 of the second channel plate 12.
  • the two second guide grooves 82 are symmetrically on the left side wall panel 13 and the right side wall panel 14.
  • One end of the elastic member 3 is connected to the frame 1, and the other end is connected to the baffle plate 2.
  • the love plate 2 Under the elastic force of the elastic member 3, the love plate 2 always has a tendency to move toward the initial position.
  • the elastic member 3 can be in the form of a structure such as a lazan, a twisted treasure, or a compression spring.
  • the elastic member 3 is a torsion spring, and the number is two, respectively located in the frame.
  • the first guide post 21 on the love punch 2 always has a direction toward the first passage plate 11 along the first guide groove 81. The tendency to move so that the baffle 2 always has a tendency to move toward the initial position.
  • the angle between the first guiding groove 81 and the first channel plate 11 is 45 degrees, so that the paper feeding direction of the continuous paper before passing through the buffer plate 2 is perpendicular to the paper discharging direction after passing through the buffer plate 2,
  • the first guiding groove 81 is located on the bisector of the paper feeding direction of the continuous paper and the paper discharging direction.
  • the pressure of the continuous paper to the cushioning plate 2 is the resultant force of the tension applied to the paper feeding direction and the tension of the paper discharging direction. Since the resultant force direction is the same as the longitudinal direction of the first guide groove 81, the first guide post 21 on the baffle plate 2 can smoothly move in the longitudinal direction of the first guide groove 81. Further, as shown in FIG. 6a and FIG.
  • a plurality of inserting plates 23 are disposed at one end of the baffle plate 2 adjacent to the second channel plate 12, and each of the interposing plates 23 has a set length and width;
  • the paper-feeding side of 12 has an arc-shaped flange 125 formed by a plurality of curved blocks, and a slot 123 is formed between each adjacent two-arc block, and the size of each slot is corresponding to the corresponding inserting plate 23 on the buffer plate 2.
  • the dimensions are adapted to be mated with corresponding plug-in plates 23 provided on the baffle plate 2.
  • the slot 123 on the second channel plate 12 is mated with the card 23 on the buffer plate 2; when the buffer plate 2 is deviated from the initial position under the compression of the continuous paper, the buffer plate 2 The upper card 23 is separated from the slot 123 on the second channel plate 12.
  • the buffer plate 2 in the initial state, under the action of the elastic force of the elastic member 3, the buffer plate 2 is positioned at the initial position, and the paper feeding mechanism has a unique paper inlet, and the user can only continue to feed the paper.
  • the paper is fed into the conveying passage P from the paper inlet, and is sent out by the paper exit of the conveying passage P.
  • the cushioning plate 2 is deviated from the initial position and moves from the initial position to the ending position.
  • the contact portion 24 of the baffle plate 2 Under the action of the elastic force of the elastic member 3, the contact portion 24 of the baffle plate 2 will be continuous paper violet.
  • the paper feeding mechanism with cushioning function provided by the invention comprises a frame, a buffer plate, a fixed channel plate, and at least one elastic element.
  • the rack is provided with a » delivery channel P, along the continuous paper conveying direction
  • the buffer plate and the fixed channel plate are located upstream of the conveying channel P
  • the buffer plate is movably connected with the frame, has an initial position, and can be in continuous paper Deviating from the initial position under pressure
  • the buffer plate forms an inlet passage with the fixed passage plate opposite to the fixed passage plate at the initial position
  • the paper feed passage has a unique paper inlet, so when installing the continuous paper, the operator only The continuous paper can be fed into the conveying path P from the paper inlet.
  • the buffer plate When the continuous paper is stationary, the buffer plate is in the elastic element The action of the piece is located at the initial position; when the continuous paper is pulled, the continuous paper JS forces the buffer plate to deviate from the initial position, and at the same time, the buffer plate can maintain the tension state of the continuous paper under the action of the elastic member.
  • the paper feeding mechanism with buffer function provided by the invention not only realizes the buffering function by providing a buffering plate, but also the compact matching of the buffering plate and the frame forms a unique paper inlet, thereby effectively avoiding the user.
  • the problem of installing continuous paper errors improves the usability of the product.
  • FIG. 7 is a schematic structural view of a third embodiment of a paper feeding mechanism with a cushioning function provided by the present invention
  • FIG. 8a is a first schematic view showing a partial structure of a paper feeding mechanism with a cushioning function according to the present invention
  • FIG. 8b is a schematic view A second schematic view of a partial structure of a third embodiment of a paper feeding mechanism having a cushioning function provided by the present invention.
  • the paper feeding mechanism provided in this embodiment is different from the above embodiment in that, in this embodiment, the guiding groove of the guiding mechanism includes two disposed on the frame 1 .
  • the first guiding grooves 81, the insertion portions of the guiding mechanism comprise two first guiding columns 21 arranged on both sides of the buffer plate 2 in the width direction of the continuous paper.
  • the two first guiding grooves 81 are symmetrically disposed on the left side wall plate 13 and the right side wall plate 14, and the longitudinal direction thereof extends in a direction parallel to the plate surface direction of the first channel plate 11;
  • the two first guiding columns 21 Located at an end of the baffle plate 2 away from the second channel plate 12, the first column 21 has a rectangular parallelepiped shape with a width matching the width of the first guiding groove 81 and a length smaller than the length of the first guiding groove 81.
  • the two first guide posts 21 on the baffle plate 2 are respectively mated with the two first guiding slots 81 on the frame 1 and can be moved along the length of the first guiding slot 81, that is, the buffer plate 2 as a whole is parallel to The direction of the plate surface of the fixed passage plate 4 is moved to have an initial position and an end position.
  • the first guide post 21 on the buffer plate 2 is located at an end of the first guiding slot 81 away from the second channel pole 12, and the contact portion 24 of the buffer plate 2 and the second channel plate 12 The distance between the buffer plate 2 is at the end position.
  • the first guide post 21 on the buffer plate 2 is located at one end of the first guiding groove 81 adjacent to the second channel plate 12, and the contact portion 24 of the baffle plate 2 The distance from the second channel plate 12 is the closest.
  • the baffle plate 2 is always between the initial position and the end position, and is located between the initial position and the end position.
  • the buffer plate 2 and the fixed channel plate 4 always form a unique paper feed passage communicating with the conveying passage P, the paper feed passage. It has a unique paper inlet, so the operator can only feed continuous paper from the paper inlet into the conveying channel? .
  • the elastic members 3 are compression springs, two in number, both located in the slots 123 of the second passage plate 12, and symmetrically disposed about the width of the conveying passage P, and the respective ends of the two compression springs Abutting against the second channel plate 12, the other ends of the two pressure plates abutting the insertion plate 23 of the buffer plate 2, and the first guide column on the buffer plate 2 under the elastic force of the two compression springs
  • the 21 always has a tendency to move in the direction away from the second passage plate 12 along the first guide groove 81, so that the baffle plate 2 always has a tendency to move toward the initial position.
  • FIG. 1 is a schematic structural view of a country embodiment of a paper feeding mechanism having a cushioning function provided by the present invention, and is a cross-sectional view showing a structure of a fourth embodiment of a paper feeding mechanism having a cushioning function provided by the present invention.
  • Figure 3 ⁇ 4, Figure 9b As shown in the present embodiment, the difference between the embodiment and the first embodiment is that, in this embodiment, one end of the buffer plate 2 is pivotally connected to the frame 1 , and the other end is movably connected to the frame 1 through a guiding mechanism, and buffered.
  • the plate 2 is rotatable relative to the frame 1 and has an initial position and an end position.
  • the pivot plate 26 is disposed adjacent to one end of the second channel plate 12, and the pivot hole 124 is disposed on the left wall plate 121 and the right wall plate 122 of the second channel plate 12, and the pivot hole is disposed.
  • the distance between the board surface of the first channel plate 11 and the board surface of the first channel plate 11 is pivoted by the pivoting shaft 26 and pivoted around the center of the pivot hole 124.
  • the guiding groove of the guiding mechanism of the present embodiment includes two first guiding grooves 81 symmetrically disposed on the left side wall plate 13 and the right side wall plate 14.
  • the two first guiding grooves 81 are centered on the pivot hole 124.
  • the arc-shaped groove; the insertion portion of the guiding mechanism includes two first guiding columns 21 symmetrically disposed at both ends of the longitudinal direction of the baffle plate 1, the first guiding post 21 S is cylindrical, and the outer diameter thereof is opposite to the first guiding groove 81
  • the width is adapted.
  • the two first guiding posts 21 are respectively inserted into the first guiding slots 81 of the frame 1 and can be moved along the length of the first guiding slot 81, that is, the buffer plate 2 is rotated about the axis of the pivoting hole 124.
  • the buffer plate 2 moves along the length direction of the first guiding groove 81, and is limited by the length of the first guiding groove 81, the buffer plate 2 has an initial position and an ending position, wherein the buffer plate 2 when the buffer plate 2 is at the initial position
  • the upper first guide post 21 is located at one end of the first guiding groove 81 near the fixed channel plate 4, and the distance between the contact portion 24 of the buffer plate 2 and the fixed channel plate 4 is the closest; when the buffer plate 2 is at the end position, the buffer pole
  • the first guide post 21 on the second guiding slot 21 is located at an end of the first guiding groove 81 away from the fixed channel plate 4.
  • the distance between the contact portion 24 of the buffer plate 2 and the fixed channel plate 4 is the most, and the buffer plate 2 and the fixed channel are at this time.
  • the plate 4 is placed at an angle. Wherein, regardless of the initial position, the end position of the baffle plate 2, or between the initial position and the end position, a unique paper feed passage communicating with the conveying passage ⁇ is always formed between the baffle plate 2 and the fixed passage plate 4, the inlet
  • the paper path has a unique paper inlet, and the operator can only feed continuous paper from the paper feed port into the transport path.
  • the elastic members 3 are pull-tabs, and the number is two, which are respectively located outside the left side wall panel 13 and the right side wall panel 14.
  • One end of the tension spring located outside the left side wall plate 13 is connected to the first guide post 21 on the baffle plate 2, and the other end is connected to the left side wall plate 13, and one end of the tension spring located outside the right side wall plate 14
  • the first guide post 21 is connected to the first guide post 21 of the baffle plate 2, and the other end is connected to the right side wall plate 14.
  • the first guide post 21 on the baffle plate 2 always has a first guide along the elastic force of the two pull tabs.
  • FIG. 10 is a cross-sectional view showing an embodiment of a printing apparatus using a paper feeding mechanism having a cushioning function provided by the present invention.
  • the printing apparatus provided in this embodiment includes a printing mechanism 100, a sheet supporting mechanism 200, and a paper feeding mechanism 300.
  • the printing mechanism 100 includes a tangentially matched print head 111 and a rubber roller li2, and the continuous paper passes between the print head 111 and the rubber roller 112, wherein the rubber roller 112 is used to support and move the continuous paper downstream, the print head 111 For printing the preset print content on the continuous paper; in the continuous paper conveying direction, the paper roll support mechanism 200 is disposed upstream of the printing mechanism 100 for supporting the paper roll S for printing, and the paper roll support mechanism 200 may be The support frame or the support shaft, in this embodiment, the paper roll support mechanism 200 is a support shaft.
  • the paper feeding mechanism 300 is located between the printing mechanism 100 and the paper roll support hook 200.
  • the paper exit of the paper feeder hook 300 communicates with the paper feed port of the printing mechanism 100, and the continuous paper is taken up by the paper roll supported by the paper roll support mechanism 200. After passing through the conveying path P of the paper feeding mechanism 300, it can be conveyed between the printing head 111 and the rubber roller 112.
  • the specific implementation manner of the paper feeding mechanism 300 is the same as that of the above embodiment, and details are not described herein again. Next, the operation of the printing apparatus using the paper feeding mechanism having the cushioning function provided by the present invention will be described.
  • the buffer plate 2 of the paper feeding mechanism 300 is at the initial position, the paper feeding mechanism 300 has a unique paper inlet, and the paper exit of the conveying path P of the paper feeding mechanism 300 communicates with the paper inlet of the printing mechanism 100, continuously.
  • the paper is taken up by the paper roll supporting mechanism 200 and can only enter the paper feeding port of the paper feeding mechanism 300 into the conveying path P of the paper feeding mechanism 300, and then enters the printing head 111 of the printing mechanism 100 and the rubber roller 112.
  • the rubber roller 112 rotates to convey the continuous paper downstream, and the printing head 111 prints on the continuous paper.
  • the continuous paper presses the buffer plate 2, and the buffer plate 2 is deviated from the initial position, under the elastic force of the elastic member 3.
  • the buffer wrench 2 will hold the continuous paper tight.
  • the printing device in the example of the present invention has a unique paper inlet when loading paper, which can avoid the installation of continuous paper errors, thereby improving the ease of use of the printing device.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
  • Advancing Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Handling Of Sheets (AREA)

Abstract

一种具有缓冲功能的入纸机构及使用该机构的打印装置，该入纸机构（300）包括机架（1），该机架（1）形成用于输送连续纸的输送通道（P），还包括位于输送通道（P）的入纸侧的固定通道板（4）和缓冲板（2），其中，缓冲板（2）具有初始位置并且在连续纸的压迫下偏离初始位置，缓冲板（2）在初始位置时与固定通道板（4）相对形成入纸通道（R），入纸通道（R）与输送通道（P）衔接。通过设置一个缓冲板（2），不仅实现了缓冲功能，而且该缓冲板（2）与入纸机构（300）的机架（1）紧凑配合形成唯一的入纸口，有效避免了用户安装连续纸错误的问题，提高了产品的易用性。

Description

具有缓冲功能的入纸机构及使用该机构的打印装置 本申请要求 2013 年 3 月 26 日提交至中国知识产权局的、 申请号为 201310099986.8、 名称为 "具有缓冲功能的入纸机构及使用该机构的打印装置"的中 国发明专利申请的优先权， 其全部公幵内容结合于此供参考。 技术领域 本发明涉及一种具有缓冲功能的入纸机构及使用该机构的打印装置。 背景技术
目前， 具有嵌入式打印装置的自助终端设备在日常生活中得到广泛应用。 比如， 在电信营业厅， 人们通过自助终端设备査询并打印话费清单； 在银行自助服务亭， 人 们通过自助终端设备存取款并打印交易凭证。 自助服务终端设备一般使用连续纸打印 凭证， 连续纸缠绕在纸筒上形成纸卷， 每完成一次打印， 由切纸装置将连续纸切断， 形成单张凭证并交付给用户， 当纸卷使用完毕时， 自助服务终端发出提示信息， 提示 服务人员更换纸卷。 为了减少更换纸卷的次数， 降低人力成本， 往往使用大外径的纸 卷， 比如， 外径为 200 -250mm的纸卷。 由于纸卷的外径较大， 纸卷的重量较重， 受惯性作用， 在开始打印时电机拖动纸卷由静止开始转动时的负载最大， 容易出现电 机带不动纸卷导致打印内容压縮的问题。 为了解决上述问题， 现有技术中在纸卷与打印装置之间设置缓冲机构， 如图 1所 示。 缓冲机构 17' 设置在纸卷支撑架 13' 与打印装置之间， 缓冲机钩 17' 包括摆臂 71' 、 缓沖轴 73' 和弹性元件 74' , 以及两个过渡辊½' , 其中， 摆臂 71' 的一端 通过枢接轴 72' 与机架（图中未示出）植接， 可以绕枢接轴 72' S动； 缓冲轴 73' 设置在摆臂 Ή' 的自由端上； 弹性元件 74' 的一端与机架连接， 另一端与摆臂 7 连接；沿连续纸输送方向， 两个过渡辊 16' 分别位于缓冲轴 73' 的上游和下游， 连续 纸 24' 由纸卷 7' 引出，经过位于缓冲轴 73' 上游的过渡辊 16' 的上方后 由缓冲轴 73' 下方经过，然后再经过位于缓冲轴 73' 下游的过渡辊 ½' 的上方进入打印头 12' 与胶辊 1Γ 之间， 此时， 摆臂 7 在弹性元件 74' 的作用下绕枢接轴 72' 转动， 位 于摆臂 71' 上的缓冲轴 73' 始终将连续纸 24' 张紧， 这样， 在打印开始电机启动加 速时， 缓冲轴 73' 能够提供缓冲降低电机的负载， 因此避免了打印内容压縮的问题。 这种缓冲机构的问题在于，在上纸时用户容易误将连续纸不经过缓冲轴 73 ' 而直 接放在打印头 12 ' 与胶辊 11 ' 之间，因而无法起到降低电机负载、避免打印内容压缩 的作用。 发明内容 本发明的目的是提供一种具有缓冲功能的入纸机构， 该入纸机构结构筒单， 能移 可靠地避免上纸错误。 本发明的目的还在于提供一种使用该入纸机构的打印装置。 为此， 根据本发明的一方面， 提供了一种具有缓冲功能的入纸机构， 包括机架， 机架形成用于输送连续纸的输送通道， 还包括位于输送通道的入纸侧的固定通道板和 缓冲板， 其中， 缓冲板具有初始位置并且在连续纸的压迫下偏离初始位置， 缓冲板在 初始位置时与固定通道板相对形成入紙通道， 入纸通道与输送通道衔接。 进一歩地， 上述机架包括形成输送通道的第一通道件和第二通道件， 其中， 固定 通道板与第一通道件一体成型。 进一歩地， 上述机架包括形成输送通道的第一通道件和第二通道件， 其中， 缓冲 板与第二通道件插接配合。 进一步地， 上述第一通道件包括第一通道板和在第一通道板沿输送通道的宽度方 向的两侧设置的侧壁板， 第二通道件包括第二通道极和在第二通道板沿输送通道的宽 度方向的两侧设置的壁板， 其中， 侧壁板和壁板二者之间设有卡接机构， 第一通道板 和第二通道板二者之间相隔预定距离以形成输送通道。 进一步地， 上述卡接机构包括在侧壁板和壁板二者中的一个上设置的弹性卡勾和 在侧壁板和壁板二者中的另一个上设置的与弹性卡勾相卡接配合的卡槽。 进一步地， 上述卡接机构还包括在侧壁板和壁板二者中的一个上设置的插槽和在 侧壁板和壁板二者中的另一个上设置的与插槽插接配合的定位块。
进一步地， 上述输送通道沿连续纸的输送方向的截面呈 L型， 或者上述输送通道 和入纸通道的组合沿连续纸的输送方向的截面呈 L型。 进一步地， 上述缓冲板与机架活动连接， 机架上还设置有使缓冲板回复至初始位 置的弹性复位元件。 进一歩地， 上述缓冲板的沿连续纸的宽度方向的两侧对称设置有第一导柱和第二 导柱， 机架上设有与第一导柱配合的第一导向槽和与第二导柱 K合的第二导向槽， 在 缓冲板偏离初始位置的过程中， 第一导柱由第一导 ^槽的起始端滑向第一导向槽的终 止端并且第二导柱由第二导向槽的起始端滑向第二导向槽的终止端。 进一步地， 上述第一导向槽的长度方向与第二导向槽的长度方向呈夹角设置。 进一步地，上述第二导向槽的长度方向平行于固定通道板，沿连续紙的输送方向， 第一导向槽位于第二导向槽的上游。 进一歩地， 上述缓冲板通过枢接轴与机架枢接， 缓冲板在连续纸的压迫下通过绕 枢接轴旋转而偏离初始位置。
进一步地， 上述缓冲板可直线平移地设置在机架上， 机架上设有引导缓冲板进行 直线平移的第一导向槽。 进一步地， 上述连续纸由纸卷提供， 输送通道的起始段和入纸通道在纸卷的外 H 的切向上延伸， 优选地同时在机架的高度方向上延伸。 根据本发明的另一方面， 提供了一种打印装置， 包括纸卷支撑机构和打印机构》 其特征在于， 还包括设置在纸卷支撑机构和打印机构之间的根据上面所描述的具有缓 冲功能的入纸机构， 其中， 入纸机构的输送通道与打印机构的入纸口连通。 本发明提供的具有缓冲功能的入纸机构， 在机架上设有输送通道 p， 沿连续纸的 输送方向， έ爰冲板和固定通道板位于输送通道 p的上游， 缓冲板具有初始位置， 并且 可以在连续纸的压迫下偏离初始位置， 其中， 缓沖板在初始位置时与固定通道梹相对 形成与输送通道衔接的入口通道， 该入纸通道具有唯一的入纸口， 因此在安装连续纸 时， 操作者只能将连续纸由该入紙口送入输送通道 ρ。 当连续纸静止时， 缓冲板在弹 性元件的作用下位于初始位置； 当拉动连续纸运动时， 连续纸压迫缓冲板偏离初始位 置， 同时， 缓冲板在弹性元件的作用下能够使连续纸保持张紧状态。 与现有技术相比， 本发明提供的具有缓冲功能的入纸机构通过设置一个缓冲板不 仅具有缓冲功能， 而且与入纸机构的机架紧凑配合形成唯一的入纸口， 因此有效避免 了用户安装连续纸错误的问题， 提高了产品的易用性。
除了上面所描述的目的、 特征、 和优点之外， 本发明具有的其它目的、 特征、 和 优点， 将结合附图作进一歩详細的说明。 附图说明
构成本说明书的一部分、 用于进一步理解本发明的附图示出了本发明的优选实施 例， 并与说明书一起用来说明本发明的原理。 图中- 图 1是现有技术提供的缓冲机构的结构示意图； 图 2是本发明提供的具有缓冲功能的入纸机构第一实施例的结构示意图； 图 3a是本发明提供的具有缓冲功能的入紙机构第一实施例的结构剖视图，其中缓 冲板处于初始位置； 图 3b是本发明提供的具有缓冲功能的入纸机构第一实施例的结构剖视图，其中缓 冲板偏离初始位置； 图 ½是本发明提供的具有缓冲功能的入纸机构第一实施例的结构分解第一示意 图；
图 4b是本发明提供的具有缓冲功能的入纸机构第一实施例的结构分解第二示意 圏；
图 5是本发明提供的具有缓冲功能的入纸机构第二实施例的结构分解示意图； 图 6a是本发明提供的具有缓冲功能的入紙机构第一实施例的局部结构示意图，其 中缓冲板处于初始位置； 图 6b是本发明提供的具有缓冲功能的入纸机构第一实施例的局部结构示意图，其 中缓冲板偏离初始位置；
图 7是本发明提供的具有缓冲功能的入纸机构第三实施例的结构示意图； 图 8a是本发明提供的具有缓冲功能的入紙机构第三实施例的局部结构第一示意 圏；
图 8b是本发明提 # ^的具有缓冲功能的入纸机构第三实施例的局部结构第二示意 圏；
图 ¾是本发明提供的具有缓冲功能的入纸机构第四实施例的结构示意图； 图％是本发明提供的具有缓冲功能的入纸机构第 0实施例的结构剖视图； 以及 图 10是使用本发明提供的具有缓冲功能的入纸机构的打印装置一实施例的结构 剖视图。 附图标记说明
I、 机架； 2、 缓冲板；
3、 弹性元件； 4、 固定通道板；
II、 第一通道板; 12、 第二通道板； 13、 左侧壁板； 14、 右側壁板； 21、 第一导柱； 22、 第二导柱； 23、 插板； 24、 接触
26、 枢接轴； P、 输送通道；
51、 弹性卡勾； 52、 定位块； 61、 卡槽； 62、 插槽；
81、 第一导向槽 ; 82、 第二导向槽； 100、 打印机构； 200、 纸卷支撑机构; 300、 入纸机构； 111、 打印头；
112、 麵 121、 左壁板； 122、 右壁板； 123、 插槽； 124、 枢接孔； 125、 弧形翻边。 具体实施方式
以下结合附图对本发明的实爐例进行详细说明， 但是本发明可以由权利要求限定 和覆盖的多种不同方式实施。 如图 2、 图 3a及图 3b所示， 本发明提供的具有缓冲功能的入纸机构包括机架 1、 缓冲板 2、 至少一个弹性元件 3, 以及固定通道板 4。 其中， 在机架 1上设有输送通道 P, 输送通道 P的出纸口与打印机构的入纸口连通； 沿连续纸输送方向， 缓冲板 2和 固定通道板 4位于输送通道 P的上游， 缓冲板 2与机架 1活动连接， 具有初始位置和 终止位置。 其中， 当缓冲板 2位于初始位置时与固定通道板 4相对以形成与输送通道 P衔接的入紙通道 R, 该入纸通道 R具有唯一的入纸口， 操作者在安装连续纸时只能 将连续纸由该入纸口送入输送通道 P。 弹性复位元件 3的一端与机架 1连接， 另一端与缓冲板 1连接， 在弹性复位元件 3的弹性力的作用下， 缓冲板 2始终具有向初始位置运动的趋势。 当连续纸静止时， 缓冲板 2位于初始位置； 当拉动连续纸运动时， 连续纸压迫缓 冲板 2偏离初始位置， 由初始位置向终止位置移动， 同时， 缓冲板 2在弹性复位元件 3的作用下能够使连续纸保持张紧状态。 图 4a是本发明提供的具有缓冲功能的入纸机构第一实施側的结构分解第一示意 圏， 图 4b是本发明提 # ^的具有缓冲功能的入纸机构第一实施例的结构分解第二示意 图。 如图 4a、 图 4b所示， 机架 1包括相互结合以形成输送通道 P的第一通道件和第 二通道件， 其中， 第一通道件包括第一通道板 11和在第一通道板 11沿输送通道宽度 方向的两侧设置的侧壁板， 也即左侧壁板 13和右侧壁板 14, 其中， 左侧壁板 13与右 侧壁板 14相对平行设置， 两者之间的距离大于等于连续纸的最大宽度； 第一通道板 11位于左侧壁板 13与右侧壁板 14之间，与左侧壁极 13和右侧壁板 14均垂直地连接。 第二通道件包括第二通道板 12，第二通道板 12与第一通遁板 11相面对并且间隔 预定距离以形成输送通道 P。 其中， 第一通道板 11和第二通道板 12两者之间的距离 为输送通道 P的高度， 左侧壁板 13和右侧壁板 14两者之间的距离为输送通道 P的宽 度。
本实施例中第一通道板 11与第二通道板 12均呈 L型， 沿连续纸输送方向， 固定 通道板 4位于第一通道板 11的上游， 第一通道板 11与左侧壁板 13以及右侧壁板 14 以及固定通道板 4四者一体成型,第二通道板 12位于左侧壁板 13与右侧壁板 14之间， 在第二通道板 12的沿输送通道宽度方向的两侧设有壁板， 即邻近左侧壁板 13的一端 设置的左壁板 121和临近右侧壁板 14的一端设置的右壁板 122» 第二通道板 12通过 卡接机构与左侧壁板 13以及右侧壁板 W可拆卸地连接。卡接机构包括两个卡接组件， 两个卡接组件对称地设置在第二通道板 12的左壁板 121与左侧壁板 13， 以及第二通 道板 12的右壁板 122与右侧壁板 14之间。 在本实施例中， 固定通道板 4与第一通道件一体成型， 例如为塑料成型件。 下面以第二通道板 12与右侧壁板 14之间的卡接组件为例介绍卡接组件的具体实 施方式。 卡接组件包括弹性卡勾 51、 定位块 52、 槽 61、 以及插槽 62， 其中， 定位 块 52设置在第二通道板 12或右倒壁板 14两者中的一个上， 具有设定的宽度与高度， 插槽 62设置在第二通道板 12或右侧壁板 14两者中的另一个上,其开口方向垂直于第 一通道板 11的表面， 因此， 沿垂直于第一通道板 11表面的方向移动第二通道板 12， 可以使定位块 52与插槽 62插接配合 ·， 弹性卡勾 51设置在第二通道板 12或右侧壁板 14两者中的一个上， 卡槽 61设置在第二通道板 12或右侧壁板 14两者中的另一个上， 当定位块 52与插槽 62插接配合时， 弹性卡勾 51与卡槽 61卡接配合， 使第二通道板 12与右侧壁板 14固定连接。 本实施例中，第二通道板 12与右侧壁板 14之间的卡接组件的弹性卡勾 51和定位 块 52设置在第二通道板 12的右壁板 122上， 卡槽 61和插槽 62设置在右侧壁板 14 上； 第二通道板 12与左侧壁板 13之间的 接组件的弹性卡勾 51和定位块 52设置在 第二通道板 12的左壁板 121上， 卡槽 61和插槽 62设置在左侧壁板 13上， 当第二通 道板 12沿垂直于第一通道板 11的板面方向靠近第一通道板 11时， 第二通道板 12上 的两个定位块 52分别与左倒壁板 13和右侧壁板 14上的插櫓 62插接配合， 第二通道 板 12上的两个弹性卡勾 51分别与左侧壁板 13和右侧壁板 14上的卡槽 61卡接配合， 使第二通道板 12与左倒壁板 13、 右侧壁板 14固定连接。 当连续纸卡塞在输送通道 P内时，扳动弹性卡勾 51，使其脱离卡槽 61，然后沿远 离第一通道板 11的方向移动第二通道板 12， 使定位块 52脱离插槽 62， 第二通道板 12与第一通道板 11分离， 可以方便地清除塞纸。 缓冲板 2位于机架 1的左侧壁板 13与右侧壁板 14之间， 与固定通道板 4相对设 置， 沿连续纸输送方向位于第二通道板 12的上游。缓沖板 2的长度方向沿输送通道 P 的宽度方向延伸， 在缓冲板 2的远离第二通道板 12的一側为接触部 24, 优选地， 接 触部 24 S圆弧形设置， 可以减小连续纸在输送时所受的阻力。 缓冲板 2与机架 1活动连接， 具有初始位置和终止位置， 并且可以在初始位置和 终止位置之间运动。 缓冲板 2通过导向机构与机架 1活动连接， 导向机构包括设置在 缓冲板 2的长度两端的插接部和在机架 1上对应设置的导向槽， 缓冲板 2上的插接部 与机架 1上的导向槽插接配合， 并可以沿导向槽移动， 使缓冲板 2可以相对机架 1在 初始位置和终止位置之间运动。 本实施例中， 机架 1上设置的导向槽包括两个第一导向槽 81和两个第二导向槽 82，其中，两个第一导向槽 81对称地设置在左侧壁板 13和右侧壁板 14上， 两个第二 导向槽 82对称地设置在第二通道板 12的左壁板 121和右壁板 122上， 其中， 第二导 向槽 82临近第二通道板 12设置，第二导向槽 82的长度方向与画定通道板 4的板面相 对平行，其宽度中心线与固定通道板 4的板面之间间隔预定距离，第二导向槽 82具有 设定的长度与宽度； 沿连续纸输送方向， 第一导向槽 81位于第二导向槽 82的上灘， 第一导向槽 81的第一端与固定通道板 4相隔预定距离， 第一导向槽 81的长度方向沿 逐渐接近第二导向櫓 82方向延伸，第一导向槽 81的长度方向与第二导向槽 82的长度 方向呈夹角设置， 第一导向槽 81具有设定的长度和宽度。 缓冲板 2上的插接都包括沿连续纸宽度方向的两侧对称设置的第一导柱 21和第二 导柱 22， 其中，第一导柱 21位于缓冲板 2的远离第二通道板 12的一端， 第二导柱 22 位于缓冲板 2的邻近第二通道板 12的一端，第一导柱 21和第二导柱 11均突出于缓冲 板 1的侧面设置， 第一导柱 21和第二导柱 22均 S柱状， 也可称为导柱。 两个第一导 柱 21分别与左侧壁板 13和右侧壁板 14上的第一导向槽 81插接配合， 可沿第一导向 槽 81的长度方向移动， 两个第二导柱 22分别与第二通道板 12两侧的第二导向槽 82 插接配合， 可沿第二导向槽 82的长度方向运动， 从而使缓冲板 2可以相对于机架 1 在初始位置和终止位置之间运动。
如图 3a所示， 当缓冲板 2位于初始位置时， 缓冲板 2上的第一导柱 21位亍第一 导向槽 81的靠近第一通道板 11的一端， 缓冲板 2与固定通道板 4相对， 形成入纸通 道 如图 3b所示， 当缓冲板 2位于终止位置时， 缓冲板 2上的第一导柱 21位于第 一导向槽 81的远离第一通道板 11的一端，缓冲板 2相对于第一通道板 11呈夹角设置。 无论缓冲板 2位于初始位置、 终止位置， 还是位于初始位置与终止位置之间， 缓冲板 2上的第二导柱 22始终在第二导向槽 82内， 且可沿第二导向槽 82的长度方向运动， 由于第二导向槽 82与第一通道板 11平行， 因此保证了缓冲板 2临近第二通道板 12 的一端与第一通道板 11之间的距离不变，始终与输送通道 P连通，缓冲板 2的远离第 二通道板 12的一端与第一通道板 11之间形成唯一的与输送通道 P连通的入纸通道 R， 该入纸通道 R具有唯一的入纸口。 需要说明的是,本实施例中两个第二导向槽 82设置在第二通道板 12的左壁板 121 和右壁板 122上， 在本发明提供的其他实施例中， 如图 5所示， 也可以将两个第二导 向槽 82对称地设置在左侧壁板 13和右侧壁板 14上。 弹性元件 3的一端与机架 1连接， 另一端与缓冲板 2连接， 在弹性元件 3的弹性 力的作用下， 爱冲板 2始终具有向初始位置运动的趋势。 弹性元件 3可以为拉賛、 扭 寶、 压簧等结构形式。 本实施例中， 弹性元件 3为扭簧， 数量为两个， 分别位于机架
1的左侧壁板 13和右侧壁板 14外侧，其中位于左侧壁板 13外侧的弹性元件 3的一端 与缓冲板 2上的第一导柱 21抵接，另一端与左侧壁板 13连接，位于右側壁板 14外侧 的弹性元件 3的一端与缓冲板 2的第一导柱 21抵接， 另一端与右侧壁板 14连接， 在 两个弹性元件 3的弹性力的作用下，爱冲极 2上的第一导柱 21始终具有沿第一导向槽 81向靠近第一通道板 11的方向移动的运动趋势， 从而使缓冲板 2始终具有向初始位 置运动的趋势。 优选地， 第一导向槽 81与第一通道板 11之间的夹角为 45度，如此， 连续纸在经 过缓冲板 2之前的入纸方向与经过缓冲板 2之后的出纸方向相垂直， 第一导向槽 81 位于连续纸的入纸方向与出纸方向的角平分线上， 此时， 连续纸对缓冲板 2的压力为 入纸方向所受张力与出纸方向所受张力的合力，该合力方向与第一导向槽 81的长度方 向相同，因此缓冲板 2上的第一导柱 21能够很顺畅地沿第一导向槽 81长度方向移动。 进一步地， 如图 6a、 图 6b所示， 在缓冲板 2的临近第二通道板 12的一端设置有 多个插板 23, 各插板 23具有设定的长度与宽度； 在第二通道板 12的入纸侧具有由多 个弧形块形成的弧形翻边 125，每相邻两弧形块之间形成插槽 123，各插槽的尺寸与缓 冲板 2上的对应插板 23的尺寸相适配， 可以与设置在缓冲板 2上的对应的插板 23插 接配合。当缓冲板 2位于初始位置时，第二通道板 12上的插槽 123与缓冲板 2上的插 板 23插接配合； 当缓冲板 2在连续纸的压迫下偏离初始位置时， 缓冲板 2上的插板 23与第二通道板 12上的插槽 123分离。通过在缓冲板 2与第二通道板 12之间设置插 板 23和插槽 123， 使缓冲板 2与第二通道板 12衔接更紧密， 通过设置弧形翻边 125， 可以引导连续纸顺畅地移动。
下面介绍本发明提供的具有缓冲功能的入纸机构的工作过程。 如图 3a所示，初始状态时， 在弹性元件 3的弹性力的作用下，缓冲板 2位亍初始 位置， 此时入紙机构具有唯一的入纸口， 用户在上紙时只能将连续纸由该入纸口送入 输送通道 P, 并由输送通道 P的出紙口送出， 当连续纸压迫缓冲板 2时， 缓冲板 2偏 离初始位置， 由初始位置向终止位置运动， 此时, 在弹性元件 3的弹性力的作用下， 缓冲板 2的接触部 24将连续纸张紫。 本发明提供的具有缓冲功能的入纸机构包括机架、 缓冲板、 固定通道板， 以及至 少一个弹性元件。 其中， 在机架上设有 »送通道 P, 沿连续纸输送方向， 缓冲板和固 定通道板位于输送通道 P的上游， 缓冲板与机架活动连接， 具有初始位置， 并且可 在连续纸的压迫下偏离初始位置， 其中， 缓冲板在扨始位置时与固定通道板相对形成 与输送通道衔接的入口通道， 该入纸通道具有唯一的入纸口， 因此在安装连续纸时， 操作者只能将连续纸由该入纸口送入输送通道 P。 当连续纸静止时， 缓冲板在弹性元 件的作用下位亍初始位置； 当拉动连续纸运动时， 连续纸 JS迫缓沖板偏离初始位置， 同时， 缓冲板在弹性元件的作用下能够 连续纸保持张紧状态。 与现有技术相比， 本 发明提供的具有缓冲功能的入纸机构通过设置一个缓冲板不仅实现了缓冲功能， 而且 该缓冲板与机架紧凑配合形成唯一的入纸口， 因此有效避免了用户安装连续纸错误的 问题， 提高了产品的易用性。
图 7是本发明提供的具有缓冲功能的入纸机构第三实施例的结构示意图， 图 8a 是本发明提供的具有缓冲功能的入纸机构第三实施例的局部结构第一示意图， 图 8b 是本发明提供的具有缓冲功能的入纸机构第三实施例的局部结构第二示意图。如图 7、 图 8a及图 8b所示， 本实施例提供的入纸机构与上述实施例相比， 不同之处在于， 本 实施例中， 导向机构的导向槽包括设置机架 1上的两个第一导向槽 81, 导向机构的插 接部包括设置在缓冲板 2沿连续纸宽度方向的两侧设置的两个第一导柱 21。 其中， 两 个第一导向槽 81对称地设置在左侧壁板 13和右侧壁板 14上，其长度方向沿平行于第 一通道板 11的板面方向延伸； 两个第一导柱 21位于缓冲板 2的远离第二通道板 12 的一端， 第一导柱 21呈长方体形状， 其宽度与第一导向槽 81的宽度相适配， 其长度 小于第一导向槽 81的长度。 缓冲板 2上的两个第一导柱 21分别与机架 1上的两个第一导向槽 81插接配合， 可沿第一导向槽 81的长度方向移动，即缓冲板 2整体沿平行于固定通道板 4的板面的 方向移动， 具有初始位置和终止位置。 其中， 当缓冲板 2位于初始位置时， 缓冲板 2 上的第一导柱 21位于第一导向槽 81的远离第二通道极 12的一端，缓冲板 2的接触部 24与第二通道板 12之间的距离最远； 当缓冲板 2位于终止位置时， 缓沖板 2上的第 一导柱 21位于第一导向槽 81的临近第二通道板 12的一端， 缓冲板 2的接触部 24与 第二通道板 12之间的距离最近。缓冲板 2无论出于初始位置、终止位置， 还是位于初 始位置与终止位置之间， 缓冲板 2与固定通道板 4之间始终形成唯一的与输送通道 P 连通的入纸通道， 该入纸通道具有唯一的入纸口， 因此操作者只能将连续纸由该入纸 口送入输送通道？。 本实脑例中， 弹性元件 3为压簧， 数量为两个， 均位于第二通道板 12的插槽 123 内， 且关于输送通道 P的宽度中心对称设置，两个压簧的各自的一端与第二通道板 12 抵接，两个压寶的各自的另一端与缓冲板 2的插板 23抵接，在两个压簧的弹性力的作 用下，缓冲板 2上的第一导柱 21始终具有沿第一导向槽 81向远离第二通道板 12的方 向移动的运动趋势， 从而使缓冲板 2始终具有向初始位置运动的趋势。
图 是本发明提供的具有缓冲功能的入纸机构第國实施例的结构示意图， 图 是本发明提供的具有缓冲功能的入纸机构第四实施例的结构剖视图。 如图 ¾、 图 9b 所示， 本实施例与第一实施例相比， 不同之处在于， 本实施例中， 缓沖板 2的一端与 机架 1枢接，另一端通过导向机构与机架 1活动连接，缓冲板 2可相对于机架 1转动， 具有初始位置和终止位置。
具体地， 爱冲板 2临近第二通道板 12的一端的设置有枢接轴 26, 在第二通道板 12的左壁板 121和右壁板 122上设置有枢接孔 124,枢接孔 124与第一通道板 11的板 面相隔设定距离，缓冲板 2通过枢接轴 26与植接孔 124枢接，可绕枢接孔 124的圆心 转动。
本实施倒中导向机构的导向槽包括在左侧壁板 13和右侧壁板 14上对称地设置两 个第一导向槽 81， 两个第一导向槽 81为以枢接孔 124为圆心的圆弧槽； 导向机构的 插接部包括在缓冲板 1的长度方向的两端对称地设置两个第一导柱 21， 第一导柱 21 S柱状， 其外径与第一导向槽 81的宽度相适配。
两个第一导柱 21分别与机架 1上的两个第一导向槽 81插接配合， 可沿第一导向 槽 81的长度方向移动， 即缓冲板 2绕枢接孔 124的轴心转动时第一导柱 21沿第一导 向槽 81的长度方向移动， 受第一导向槽 81的长度限制， 缓冲板 2具有初始位置和终 止位置，其中，当缓冲板 2位于初始位置时缓冲板 2上的第一导柱 21位于第一导向槽 81靠近固定通道板 4的一端，缓冲板 2的接触部 24与固定通道板 4之间的距离最近； 当缓冲板 2位于终止位置时， 缓冲极 2上的第一导柱 21位于第一导向槽 81的远离固 定通道板 4的一端，缓冲板 2的接触部 24与固定通道板 4之间的距离最 ¾，此时缓冲 板 2与固定通道板 4呈夹角设置。 其中， 无论缓冲板 2出于初始位置、 终止位置， 还是位于初始位置与终止位置之 间， 缓冲板 2与固定通道板 4之间始终形成唯一的与输送通道 Ρ连通的入纸通道， 该 入纸通道具有唯一的入纸口， 操作者只能将连续纸由该入紙口送入输送通道 Ρ。
本实施例中， 弹性元件 3为拉黉， 数量为两个，分别位于左侧壁板 13和右侧壁板 14的外倒。其中， 位亍左側壁板 13外侧的拉簧的一端与缓沖板 2上的第一导柱 21连 接， 另一端与左侧壁板 13连接， 位于右侧壁板 14外侧的拉簧的一端与缓冲板 2的第 一导柱 21连接， 另一端与右侧壁板 14连接， 在两个拉箫的弹性力的作用下， 缓冲板 2上的第一导柱 21始终具有沿第一导向槽 81向靠近固定 ¾道板 4的方向移动的运动 趋势， 从而使缓冲板 2始终具有枢接孔 124的圆心向初始位置转动的趋势。 图 10是使用本发明提供的具有缓冲功能的入纸机构的打印装置一实施例的结掏 剖视图。 如图 10所示， 本实施例中提供的打印装置包括打印机构 100、 纸桊支撑机构 200， 以及入纸机构 300。 打印机构 100包括相切配合的打印头 111和胶辊 li2,连续纸从打印头 111与胶辊 112之间通过， 其中， 胶辊 112用于支撑并 ¾动连续纸向下游移动， 打印头 111用于 在连续纸上打印预先设定的打印内容； 沿连续纸输送方向， 纸卷支撑机构 200设置在 打印机构 100的上游， 用于支撑打印用的纸卷 S, 纸卷支撑机构 200可以为支撑架或 支撑轴， 本实施例中纸卷支撑机构 200为支撑轴。
入纸机构 300位于打印机构 100与纸卷支撑机钩 200之间， 入纸机钩 300的出纸 口与打印机构 100的入纸口连通， 连续纸由纸卷支撑机构 200支撑的纸卷引出， 经过 入纸机构 300的输送通道 P后能够被输送到打印头 111与胶辊 112之间。入纸机构 300 的具体实施方式与上述实施例相同， 在此不再赘述。 下面介绍使用本发明提供的具有缓冲功能的入纸机构的打印装置的工作过程。 初始状态时， 入纸机构 300的缓冲板 2位于初始位置， 入纸机构 300具有唯一的 入纸口， 入纸机构 300的输送通道 P的出纸口与打印机构 100的入纸口连通， 连续纸 由紙卷支撑机构 200支撑的纸卷引出，只能由入纸机构 300的入纸口进入入纸机构 300 的输送通道 P内， 然后再进入打印机构 100的打印头 111与胶辊 112之间， 胶辊 112 转动, 向下游输送连续纸， 打印头 111在连续纸上进行打印， 此时连续纸压迫缓冲板 2, 使缓冲板 2偏离初始位置，在弹性元件 3的弹性力的作用下，缓沖扳 2将连续纸张 紧。 本实爐例中的打印装置在上纸时具有唯一的入纸口， 可以避免安装连续纸错误， 因此提高了打印装置的易用性。 以上所述仅为本发明的优选实施倒而已， 并不用于限制本发明， 对于本领域的技 术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内， 所作的 任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种具有缓冲功能的入纸机构， 其特征在于， 包括机架（1)， 所述机架 ( 1 )形 成用于输送连续纸的输送通道（P), 还包括位于所述输送通道（P) 的入纸侧 的固定通道板（4)和缓冲板 （2)， 其中， 所述缓冲板（2)具有初始位置并且 在所述连续纸的压迫下偏离所述初始位置， 所述缓冲板（2)在所述初始位置时 与所述固定通道板（4)相对形成入纸通道（R), 所述入纸通道（R)与所述输 送通道（P)衔接。
2. 根据权利要求 1所述的具有缓冲功能的入纸机构， 其特征在于， 所述机架（1 ) 包括形成所述输送通道（P) 的第一通道件和第二通道件， 其中， 所述固定通 道板 （4)与所述第一通道件一体成型。
3. 根据权利要求 1所述的具有缓冲功能的入纸机构， 其特征在于， 所述机架（1 ) 包括形成所述输送通道（P) 的第一通道件和第二通道件， 其中， 所述缓冲板
(2) 与所述第二通道件插接配合。
4. 根据权利要求 2或 3所述的具有缓冲功能的入纸机构， 其特征在于， 所述第一 通道件包括第一通道板 ( 11 )和在所述第一通道板 ( 11 )的沿所述输送通道（P) 的宽度方向的两侧设置的侧壁板， 所述第二通道件包括第二通道板（12)和在 所述第二通道板（12)沿所述输送通道（P) 的宽度方向的两侧设置的壁板， 其中， 所述侧壁板和所述壁板之间设有卡接机构， 所述第一通道板（11 ) 和第 二通道板 ( 12)二者之间相隔预定距离以形成所述输送通道（P)。
5. 根据权利要求 4所述的具有缓冲功能的入纸机构， 其特征在于， 所述卡接机构 包括在所述侧壁板和所述壁板二者中的一个上设置的弹性卡勾 （51 )和在所述 侧壁板和所述壁板二者中的另一个上设置的与所述弹性卡勾 （51 )相卡接配合 的卡槽（61)。
6. 根据权利要求 1所述的具有缓冲功能的入纸机构， 其特征在于， 所述输送通道
(P)沿所述连续纸的输送方向的截面呈 L型， 或者所述输送通道（P)和所述 入纸通道 (R) 的组合沿所述连续纸的 送方向的截面呈 L型。
7. 根据权利要求 1所述的具有缓冲功能的入纸机构，其特征在于，所述缓冲板（2) 与所述机架 ( 1 )活动连接， 所述机架（1)上还设置有使所述缓冲板（2)回复 至所述初始位置的弹性复位元件 （3 )。
8. 根据权利要求 7所述的具有缓冲功能的入纸机构，其特征在于，所述缓冲板（2) 的沿所述连续纸的宽度方向的两侧对称设置有第一导柱（21 )和第二导柱（22), 所述机架 ( 1 )上设有与所述第一导柱（21 )配合的第一导向槽（81 )和与所述 第二导柱（22)配合的第二导向槽 (82), 在所述缓冲板 （2)偏离所述初始位 置的过程中， 所述第一导柱（21 ) 由所述第一导向槽（81 ) 的起始端滑向所述 第一导向槽（81 ) 的终止端并且所述第二导柱（22) 由所 ¾第二导向槽（82) 的起始端滑向所述第二导向槽（82) 的终止端。
9. 根据权利要求 8所述的具有缓冲功能的入纸机构， 其特征在于， 所述第一导向 槽 （81 ) 的长度方向与所述第二导向槽（82) 的长度方向呈夹角设置。
10. 根据权利要求 8或 9所述的具有缓冲功能的入纸机构， 其特征在于， 所述第二 导向槽（82) 的长度方向平行于所述固定通道极（4), 沿所述连续纸的输送方 向， 所述第一导向槽（81 )位于所述第二导向槽（82)的上游。
11. 根据权利要求 7所述的具有缓冲功能的入纸机构，其特征在于，所述缓沖板（2) 通过枢接轴（26)与所述机架（1 )枢接， 所述缓冲板（2)在所述连续纸的压 迫下通过绕所述枢接轴（26)旋转而偏离所述初始位置。
12. 根据权利要求 7所述的具有缓冲功能的入纸机构，其特征在于，所述缓冲板（2) 可直缝平移地设置在所述机架（1 )上， 所述机架 （1 )上设有引导所述缓冲板
(2)进行直线平移的第一导向槽 （81 )„
13. 一种打印机， 包括纸卷支撑机构和打印机构， 其特征在于， 还包括设置在所述 纸卷支撑机构（200)和所述打印机构（100)之间的根据权利要求 1至 12中任 一项所述的具有缓冲功能的入纸机构 ( 300)， 其中， 所述入纸机构（300)的输 送通道与所述打印机构 ( 100) 的入纸口连通。
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