WO2014071823A1 - 薄片类介质的分离方法和分离机构 - Google Patents
薄片类介质的分离方法和分离机构 Download PDFInfo
- Publication number
- WO2014071823A1 WO2014071823A1 PCT/CN2013/086500 CN2013086500W WO2014071823A1 WO 2014071823 A1 WO2014071823 A1 WO 2014071823A1 CN 2013086500 W CN2013086500 W CN 2013086500W WO 2014071823 A1 WO2014071823 A1 WO 2014071823A1
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- WO
- WIPO (PCT)
- Prior art keywords
- roller
- sheet
- medium
- separating
- paper
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/063—Rollers or like rotary separators separating from the bottom of pile
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
- B65H3/52—Friction retainers acting on under or rear side of article being separated
- B65H3/5246—Driven retainers, i.e. the motion thereof being provided by a dedicated drive
- B65H3/5276—Driven retainers, i.e. the motion thereof being provided by a dedicated drive the retainers positioned over articles separated from the bottom of the pile
- B65H3/5284—Retainers of the roller type, e.g. rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/50—Driving mechanisms
- B65H2403/51—Cam mechanisms
- B65H2403/514—Cam mechanisms involving eccentric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/70—Clutches; Couplings
- B65H2403/72—Clutches, brakes, e.g. one-way clutch +F204
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- 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
- B65H2701/19—Specific article or web
- B65H2701/1912—Banknotes, bills and cheques or the like
Definitions
- the conventional sheet-type medium separating mechanism includes a frame, at least one set of conveying rollers 110, a separating roller 120, a reverse roller 130, and a driving assembly, and at least one of the conveying rollers 110 and the separating roller 120 respectively passes through A rotating shaft 210 and a second rotating shaft 220 are supported on the frame, the reverse roller 130 is supported on the frame by the second rotating shaft 230, and the reverse roller 130 is tangent to the separating roller 120;
- the driving assembly includes a first driving component and a second driving component, configured to drive the conveying roller 110 and the separating roller 120, wherein the first driving component comprises a motor 332 and a synchronous toothed belt 331 respectively connected to the first rotating shaft 210 and the second rotating shaft 220, and can drive the first A rotating shaft 210 and a second rotating shaft 220 are rotated in the paper feeding direction, and
- the separation roller 120 drives the sheet-like medium in contact therewith to be transported downstream, and the reverse roller 130 drives the sheet-like medium in contact with it to be transported upstream, thereby realizing Separation, when the sheet-like medium between the separation roller 120 and the branching roller 130 is a single sheet, the separation roller 120 drives the sheet-like medium to be conveyed downstream against the resistance to which the reverse roller 130 is rotated.
- the separation mechanism has a problem in that, when a single sheet-like medium enters between the separation roller 120 and the reverse roller 130, the reverse roller 130 and the separation roller 120 are respectively in contact with both sides of the sheet-like medium, wherein the separation roller 120
- the sheet-like medium that is driven and transported to the sheet is conveyed downstream, and the reverse roller 130 directly drives the sheet-like medium of the sheet to be transported upstream, causing the sheet-like medium of the sheet to wrinkle due to the opposite direction of the surface force, which is not smooth.
- An object of the present invention is to provide a separation method and a separation mechanism for a sheet-like medium, which can smoothly convey a single sheet-like medium.
- an aspect of the present invention provides a method for separating a sheet-like medium, comprising: separating a roll-driven sheet-like medium to move in a paper feed direction, and a paper-removing roller disposed opposite the separation roller intermittently rotating in a paper-retracting direction to realize a sheet Separation of class media. Further, the paper ejection roller is driven to rotate intermittently by the separation roller, and the paper ejection roller intermittently rotates once during each revolution of the separation roller.
- a separation mechanism for a sheet-like medium comprising a frame, a separation roller and a paper ejection roller disposed opposite to each other on a frame, and a driving mechanism for driving the separation roller to rotate, and further including a sleeve An eccentric member disposed on the separation roller, a one-way bearing disposed on the paper-removing roller and rotatable in a paper-retracting direction, and a lever that is disposed on the one-way bearing and that is slidable by the eccentric member, wherein the separation roller drives the sheet
- the type media moves in the paper feed direction, and the paper ejection roller intermittently rotates in the paper ejection direction.
- the separating mechanism further includes an elastic member that abuts the lever on the eccentric member.
- the eccentric member is a cam.
- the drive mechanism includes a motor and a transmission assembly disposed between the motor and the separation roller.
- the separating mechanism further includes a conveying roller located upstream of the separating roller in the paper feeding direction, and the conveying roller is drivingly coupled to the separating roller.
- the separating mechanism further includes a paper blocking plate located upstream of the paper ejection roller in the paper feeding direction.
- the above-mentioned frame includes a left side wall, a right side wall, a first passage plate and a second passage plate which form a conveying passage of the sheet-like medium between the left side wall and the right side wall, and the separation roller and the eject roller are both Includes a mandrel and a roller that enters the delivery channel. Further, the frictional force between the separation roller and the sheet-like medium is greater than the friction between the paper-removing roller and the sheet-like medium. According to the separation method provided by the present invention, the eject roller rotates only intermittently, and the rotation is stopped for the rest of the time, thus reducing the conveying resistance to a single sheet-like medium, thereby achieving smooth conveyance of a single sheet-like medium.
- FIG. 1 is a schematic view showing the structure of a separating mechanism for a sheet-like medium in the prior art
- Fig. 2 is a flow chart showing a method for separating a sheet-like medium according to the present invention
- Fig. 3 is a separation of a sheet-like medium according to the present invention.
- FIG. 4 is a cross-sectional view showing an embodiment of a separating mechanism for a sheet-like medium according to the present invention.
- FIG. 5 is a simplified structure of an embodiment of a separating mechanism for a sheet-like medium according to the present invention.
- BRIEF DESCRIPTION OF THE DRAWINGS Fig. 6 is a partially exploded perspective view showing an embodiment of a separating mechanism for a sheet-like medium according to the present invention. Description of the reference numerals
- 122 a second roller
- 122a a segmented roller
- the separation method of the sheet medium of the present invention comprises: the separation roller drives the sheet medium to move in the paper feed direction, and the paper ejection roller disposed opposite to the separation roller intermittently rotates in the paper ejection direction to realize the sheet medium. Separation.
- the separating roller rotationally drives the sheet-like medium to move in the paper feeding direction while driving the paper-removing roller to rotate a predetermined angle in the paper-releading direction, and then The eject roller stops rotating and the separation roller continues to rotate.
- two driving mechanisms may be provided to respectively drive the paper ejection roller and the separation roller, and the first driving mechanism drives the separation roller to rotate in the paper feeding direction each time the leading end of the sheet-like medium enters between the separation roller and the paper ejection roller.
- the second driving mechanism drives the paper-removing roller to rotate a predetermined angle in the paper-retracting direction
- the driving of the paper-removing roller is stopped; preferably, only one driving mechanism is provided to drive the separating roller, wherein the paper-removing roller is driven by the separating roller and intermittently Rotating, the eject roller is intermittently rotated once per revolution of the separation roller.
- a preferred separation mechanism for implementing the separation method will be described in detail below.
- 3 to 6 are views showing the structure of a separating mechanism of a sheet-like medium according to the present invention. As shown in FIGS. 3 to 6, the separating mechanism of the sheet-like medium provided by the present invention comprises a frame, a separating assembly 1 and a driving assembly 2.
- the rack includes a left side wall 81, a right side wall 82, a first channel plate 84a, and a second channel plate 84b, wherein the left side wall 81 and the right side wall 82 are parallel to each other and spaced apart by a predetermined distance, Between width and width The maximum width of the medium-like medium; the first passage plate 84a and the second passage plate 84b are vertically supported between the left side wall 81 and the right side wall 82, and a conveying passage for the sheet-like medium is formed therebetween.
- the separation unit 1 includes a separation roller 11 and a paper ejection roller 12 disposed on opposite sides of the conveying path for separating a single sheet-like medium from a plurality of sheets of the sheet-like medium and conveying it in the paper feeding direction.
- a direction opposite to the sheet feeding direction of the sheet-like medium is referred to as a paper ejection direction.
- the separation roller 11 is for driving the sheet-like medium in contact therewith to be transported downstream.
- the separation roller 11 is located at one side of the conveying passage, and the axial direction of the separating roller 11 extends in the width direction of the sheet-like medium to be rotatable about its own axis.
- the separation roller 11 includes a first spindle 111 and a first roller 112. Wherein, both ends of the first mandrel 111 are supported by the frame, and under the driving of the driving assembly 2, the first mandrel 111 can rotate in the paper feeding direction about its own axis; the first roller 112 is fixedly disposed on the first mandrel
- the circumference of the outer circumference of 111 is greater than the length of the sheet-like medium in the conveying direction, and may be an integral roller whose length is adapted to the maximum width of the sheet-like medium, or may be axially spaced along the first mandrel 111.
- the segmented roller of the cloth when the first mandrel 111 rotates, the first roller 112 rotates synchronously, and the friction between the first roller 112 and the sheet medium is greater than the friction between the sheet media.
- the material of the first roller 112 is rubber.
- the separation roller 11 is located on a side of the second passage plate 84b facing away from the conveying passage, and the first roller 112 includes two segmented rollers 112a disposed axially along the first mandrel 111, and the first roller 112 is worn.
- a notch (not shown) through the second channel plate 84b enters the delivery channel.
- the paper ejection roller 12 is opposed to the separation roller 11, and is located on the other side of the conveying path for driving the sheet-like medium in contact therewith to move in the paper ejection direction.
- the paper ejection roller 12 includes a second spindle 121 and a second roller 122.
- the two ends of the second mandrel 121 are supported by the left side wall 81 and the right side wall 82, the axis of which is parallel with the first mandrel 111 of the separation roller 11, and the second mandrel 121 is freely rotatable about its own axis;
- the wheel 122 is fixedly disposed on the outer circumference of the second mandrel 121, and is disposed opposite to the first roller 112 of the separation roller 11, and may be an integral roller whose length is adapted to the maximum width of the sheet-like medium, or may be along the second
- the mandrel 121 is axially spaced apart from the segmented rollers.
- the paper take-off roller 12 is located on a side of the first passage plate 84a facing away from the conveying passage, and the second roller 122 is axially arranged along the second mandrel 121 and is opposite to the first roller 112 of the separating roller 11.
- the second roll 122 passes through a notch (not shown) on the first channel plate 84a into the delivery channel.
- the drive assembly 2 is drivingly coupled to the separation assembly 1 for driving the separation assembly 1 for a separating operation.
- the drive assembly 2 includes a motor 21, a transmission assembly, a one-way bearing 26, a shift lever 23, an eccentric member, and a resilient member 25.
- the motor 21 is fixedly disposed on the support wall 83 of the frame for driving the separation roller 11 to rotate in the paper feed direction.
- the support wall 83 is located on a side of the left side wall 81 or the right side wall 82 facing away from the conveying passage; the transmission assembly is used for electricity
- the output torque of the motor is transmitted to the separation roller 11.
- the transmission assembly includes a motor pulley 211, a first pulley 111a and a toothed belt 22, wherein the motor pulley 211 is fixedly connected to the output shaft of the motor 21,
- the first pulley 111a is fixedly coupled to one end of the first spindle 111.
- One end of the toothed belt 22 is meshed with the motor pulley 211, and the other end is meshed with the first pulley 111a for outputting the torque of the motor 21.
- the first mandrel 111 is delivered to the separation roller 11.
- the inner ring of the one-way bearing 26 is connected to one end 121a of the second mandrel 121 of the paper take-off roller 12, and the outer ring of the one-way bearing 26 is connected to the inner hole 23a of one end of the shift lever 23, and the unaligned one of the lever 23 One end of the connection of the bearing 26 is suspended.
- the push lever 23 drives the one-way bearing 26 to rotate in the paper feed direction
- the one-way bearing 26 and the second spindle 121 of the paper-removing roller 12 slip, and the second spindle 121 is fixed, that is, the paper-removing roller 12
- the push lever 23 drives the one-way bearing 26 to rotate in the paper ejection direction
- the one-way bearing 26 holds the second spindle 121 and drives the second spindle 121, that is, the paper take-off roller 12 is synchronized with the one-way bearing 26.
- the eccentric member is fixedly sleeved with one end of the first mandrel 111, and is located downstream of the hanging end of the lever 23 in the paper feeding direction.
- the eccentric member in this embodiment is a cam 24 which includes a working surface 24a extending away from the center of rotation thereof.
- the working surface 24a can be in contact with or separated from the free end of the lever 23.
- the lever 23 can be pushed to drive the one-way bearing 26 to rotate in the ejecting direction.
- One end of the elastic member 25 is connected to the lever 23, and the other end is connected to the frame. Under the elastic force of the elastic member 25, the floating end of the lever 23 always has a tendency to move toward the initial position in the direction of the cam 24.
- the support wall 83 is located outside the right side wall 82 of the frame, and the cam 24 and the first pulley 111a are juxtaposed at one end of the first mandrel 111 adjacent to the right side wall 82.
- the transmission assembly is also composed of a plurality of gears, and the torque output from the motor 21 is transmitted to the separation roller 11 by the meshing of the gears.
- the first mandrel 111 is fixedly sleeved with a first gear
- the output shaft of the motor 21 is fixedly sleeved with a motor gear.
- the first gear and the motor gear are connected by a plurality of gears.
- the motor 21 of the driving unit 2 drives the first mandrel 111 to rotate in the paper feeding direction by the motor pulley 211, the toothed belt 22, and the first pulley 111a, the first roller 112 and the cam 24 rotates in the paper feed direction in synchronization with the first spindle 111.
- the force applied to the sheet medium in contact with the separation roller 11 includes the sheet medium and the separation roller 11
- the friction between the roller 112 and the friction between the sheet medium and the sheet medium is greater than the sheet medium and the sheet medium due to the friction between the sheet medium and the first roller 112 of the separation roller 11
- the frictional force between them therefore, the sheet-like medium in contact with the separation roller 11 can be conveyed in the paper feed direction; the sheet-like medium in contact with the paper-removing roller 12 is subjected to friction between the sheet-like medium and the sheet-like medium, and the paper is ejected.
- the friction between the second roller 122 of the roller 12 and the sheet-like medium is greater than the friction between the sheet-like medium and the sheet-like medium due to the friction between the second roller 122 of the paper-removing roller 12 and the sheet-like medium. Therefore, the sheet-like medium in contact with the eject roller 12 is moved in the ejecting direction, so that a plurality of sheet-like media located between the separating roller 11 and the ejecting roller 12 are separated, and only the sheet in contact with the separating roller 11 is separated. Medium It can be transported in the paper feed direction.
- the friction between the separation roller 11 and the sheet medium is greater than that between the paper ejection roller 12 and the sheet medium. Friction, so a single sheet-like medium can be transported in the paper feed direction.
- the rotating shaft of the separating roller of the separating mechanism is connected to the shifting rod through a one-way bearing. When the front end of the sheet-like medium enters between the separating roller and the paper-removing roller, the working surface of the cam connected to the separating roller drives the lever from the initial position.
- the one-way bearing is driven to rotate in the paper-retracting direction during the rotation of the lever, thereby driving the paper-removing roller to rotate along the direction of the paper-feeding direction of the one-way bearing to separate the separation roller and the paper ejection a plurality of sheet-like media between the rollers; when the sheet-like medium enters between the separating roller and the paper-removing roller, the working surface of the cam is separated from the lever, and the lever is reset to the initial position by the elastic member, and the lever is at The eject roller does not rotate due to the action of the one-way bearing during the rotation, and the separation roller drives the sheet-like medium to be conveyed in the paper feed direction.
- the paper ejection roller intermittently rotates only when the sheet medium enters between the paper ejection roller and the separation roller, and stops after a single sheet medium enters between the separation roller and the paper ejection roller.
- the rotation reduces the resistance to the conveyance of a single sheet-like medium, thereby achieving smooth conveyance of a single sheet-like medium.
- the separating mechanism further includes a paper blocking plate 3 and a conveying roller 4. As shown in FIG. 3, in the paper feed direction, the conveying roller 4 and the paper stopper 3 are sequentially disposed upstream of the separation unit 1.
- the conveying roller 4 is located upstream of the separating roller 11, and is located on the same side of the conveying path together with the separating roller 11.
- the conveying roller 4 includes a third mandrel 41 and a third roller 42, wherein the third mandrel 41 extends in the width direction of the sheet-like medium, and both ends thereof are supported by the left side wall 81 and the right side wall 82 of the frame;
- the three-roller wheel 42 is fixedly disposed on the outer circumference of the third mandrel 41, and may be an integral roller whose length is adapted to the maximum width of the sheet-like medium, or may be a segment which is axially spaced along the third mandrel 41.
- the roller when the third spindle 41 rotates, the third roller 42 rotates synchronously with the third spindle 41.
- the conveying roller 4 is located on a side of the second passage plate 84b facing away from the conveying passage, and the third roller 42 includes two segmented rolls 42a disposed axially along the third mandrel 41, and two third rolls The wheels 42a respectively pass through the gaps in the second passage plate 84b into the conveying passages, and are in contact with the sheet-like medium in the conveying passages.
- the transmission assembly further includes a first gear 111b fixedly disposed at one end of the first mandrel 111 of the separation roller 11, a second gear 41a fixedly disposed at one end of the third mandrel 41, and simultaneously with the first gear 111b, The two gears 41a mesh with the connected transition gear 41b, and when the first spindle 111 rotates, the third spindle 41 rotates synchronously.
- the paper stopper 3 is located between the paper ejection roller 12 and the conveying roller 4, and is located on the same side of the conveying path together with the paper ejection roller 12.
- the paper blocking plate 3 has a circular arc shape and is fixedly connected with the frame, and extends along the width direction of the sheet-like medium to cover the surface of the paper-removing roller 12.
- the driving unit 2 drives the separating roller 11 to rotate, and the conveying roller 4 that is drivingly coupled to the first mandrel 111 of the separating roller 11 rotates synchronously with the separating roller 11, and a plurality of sheet-like mediums are driven.
- the front end of the sheet-like medium is sequentially staggered and stacked, and the front end of the sheet-like medium in contact with the second passage plate 84b is closest to the entrance between the separation roller 11 and the paper-removing roller 12.
- the sheet-like medium whose staggered front end is sequentially brought into contact with the separation roller 11 causes the separation success rate of the separation roller 11 to be higher. Therefore, by adding the paper stopper 3 upstream of the separation roller 11 and the paper ejection roller 12, it is possible to guide a plurality of sheet-like media to sequentially enter between the separation roller 11 and the paper ejection roller 12 for separation, thereby further improving the success rate of the separation mechanism.
- the separation method of the present invention can also be realized by other separation mechanisms.
- a sector gear is mounted on the separation roller
- a one-way bearing is mounted on the paper-removing roller
- a driving gear that is meshed with the sector gear through the transition gear is mounted on the one-way bearing
- the rotation direction of the driving gear can be made by selecting an odd number of transition gears. It is opposite to the direction of rotation of the sector gear, thereby achieving the effect of intermittent rotation of the paper ejection roller.
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Abstract
一种薄片类介质的分离方法,包括分离辊(11)驱动薄片类介质沿进纸方向移动,与分离辊(11)相对设置的退纸辊(12)沿退纸方向间歇回转,以实现薄片类介质的分离。一种薄片类介质的分离机构,包括机架、在机架上相对设置的分离辊(11)和退纸辊(12)、驱动分离辊(11)转动的驱动机构、套设在分离辊(11)上的偏心件、设置在退纸辊(12)上的可沿退纸方向回转的单向轴承(26)以及设置在单向轴承(26)上的可由偏心件拨动的拨杆(23),其中,分离辊(11)驱动薄片类介质沿进纸方向移动,退纸辊(12)沿退纸方向间歇回转。退纸辊(12)间歇转动,减少了对单张薄片类介质的输送阻力,从而实现单张的薄片类介质的顺利输送。
Description
薄片类介质的分离方法和分离机构
本申请要求 2012 年 11 月 6 日提交至中国知识产权局的、 申请号为 201210439218.8、 名称为 "薄片类介质的分离方法和分离机构"的中国发明专利申请的 优先权, 其全部公开内容结合于此供参考。 技术领域 本发明涉及一种薄片类介质的分离方法和分离机构。 背景技术 现有的薄片类介质处理装置, 如打印机、 扫描仪、 识币器、 出钞机等薄片类介质 处理装置为了提高使用的方便性, 往往设置分离机构, 用以将多张的薄片类介质, 如 纸张、 钞票、 银行卡等一张一张依次送入薄片类介质处理装置内部。 如图 1所示, 现有的薄片类介质分离机构包括机架、 至少一组输送辊 110、 分离 辊 120、 反转辊 130及驱动组件, 至少一组输送辊 110和分离辊 120分别通过第一转 动轴 210和第二转动轴 220支撑在机架上, 反转辊 130通过第二转轴 230支撑在机架 上, 反转辊 130与分离辊 120相切; 驱动组件包括第一驱动组件和第二驱动组件, 用 于驱动输送辊 110和分离辊 120, 其中第一驱动组件包括电机 332和同步齿形带 331, 分别与第一转动轴 210和第二转动轴 220传动连接, 可以驱动第一转动轴 210、 第二 转动轴 220沿进纸方向转动, 第二驱动组件 (图中未示出) 用于驱动第二转动轴 230 沿退纸方向转动。当分离辊 120与反转辊 130之间存在多张薄片类介质时,分离辊 120 驱动与其接触的薄片类介质向下游输送, 反转辊 130驱动与其接触的薄片类介质向上 游输送, 从而实现分离, 当位于分离辊 120与分转辊 130之间的薄片类介质为单张时, 分离辊 120驱动薄片类介质克服反转辊 130转动带给其的阻力向下游输送。 这种分离机构存在的问题在于, 当单张薄片类介质进入分离辊 120和反转辊 130 之间后, 反转辊 130与分离辊 120分别与薄片类介质的两面接触, 其中, 分离辊 120 一直驱动与该单张的薄片类介质向下游输送, 反转辊 130—直驱动该单张的薄片类介 质向上游输送, 引起单张的薄片类介质因表面受力方向相反产生褶皱, 无法顺利向下 游输送的问题。
发明内容 本发明的目的在于提供一种薄片类介质的分离方法和分离机构, 能够顺利输送单 张的薄片类介质。 为此, 本发明一方面提供了一种薄片类介质的分离方法, 包括分离辊驱动薄片类 介质沿进纸方向移动, 与分离辊相对设置的退纸辊沿退纸方向间歇回转, 以实现薄片 类介质的分离。 进一步地, 上述退纸辊由分离辊驱动而间歇回转, 退纸辊在分离辊每回转一周的 时间内间歇回转一次。 根据本发明的另一方面, 提供了一种薄片类介质的分离机构, 包括机架、 在机架 上相对设置的分离辊和退纸辊、 以及驱动分离辊转动的驱动机构, 并且还包括套设在 分离辊上的偏心件、 设置在退纸辊上的可沿退纸方向回转的单向轴承、 以及设置在单 向轴承上的可由偏心件拨动的拨杆, 其中, 分离辊驱动薄片类介质沿进纸方向移动, 退纸辊沿退纸方向间歇回转。 进—步地, 上述分离机构还包括使拨杆抵接在偏心件上的弹性元件。 进—步地, 上述偏心件为凸轮。 进—步地, 上述驱动机构包括电机及设置在电机与分离辊之间的传动组件。 进— -步地, 上述分离机构还包括沿进纸方向位于分离辊上游的输送辊, 输送辊与 分离辊传动连接。 进一步地, 上述分离机构还包括沿进纸方向位于退纸辊上游的挡纸板。 进一步地, 上述机架包括左侧壁、 右侧壁、 位于左侧壁和右侧壁之间形成薄片类 介质的输送通道的第一通道板和第二通道板, 分离辊和退纸辊均包括芯轴和进入输送 通道中的辊轮。 进一步地, 上述分离辊与薄片类介质之间的摩擦力大于退纸辊与薄片类介质之间 的摩擦力。 根据本发明提供的分离方法, 退纸辊仅间歇性转动, 其余时间停止转动, 如此减 少了对单张薄片类介质的输送阻力, 从而实现单张的薄片类介质的顺利输送。
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, 将结合附图作进一步详细的说明。 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是现有技术中的薄片类介质的分离机构的结构示意图; 图 2是根据本发明的薄片类介质的分离方法的流程图; 图 3是根据本发明的薄片类介质的分离机构一实施例的第一结构示意图; 图 4是根据本发明的薄片类介质的分离机构一实施例的结构剖面图; 图 5是根据本发明的薄片类介质的分离机构一实施例的简化结构示意图; 以及 图 6是根据本发明的薄片类介质的分离机构一实施例的局部结构分解示意图。 附图标记说明
1、 分离组件; 2、 驱动组件;
81、 左侧壁; 82、 右侧壁;
84a、 第一通道板; 84b 第二通道板;
11、 分离辊; 12、 退纸辊;
111、 第一芯轴; 112、 第一辊轮;
112a, 分段辊; 121、 第二芯轴;
122、 第二辊轮; 122a、 分段辊;
21、 电机; 26、 单向轴承;
23、 拨杆; 24、 凸轮;
25、 弹性元件; 83、 支撑壁;
211、 电机带轮 111a, 第一带轮;
22、 齿形带; 121a, 第二芯轴的
23a、 内孔; 24a、 工作面;
3、 挡纸板; 4、 输送辊;
41、 第三芯轴; 42、 第三辊轮;
42a, 分段辊; l l lb、 第一齿轮;
41a, 第二齿轮 41b、 过渡齿轮。 具体实施方式 以下结合附图对本发明的实施例进行详细说明, 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。 图 2是根据本发明的薄片类介质的分离方法的流程图。 如图 2所示, 本发明的薄 片类介质的分离方法包括: 分离辊驱动薄片类介质沿进纸方向移动, 与分离辊相对设 置的退纸辊沿退纸方向间歇回转, 以实现薄片类介质的分离。 优选地, 每当薄片类介 质的前端进入分离辊和退纸辊之间时, 分离辊转动驱动薄片类介质沿进纸方向移动, 同时驱动退纸辊沿退纸方向回转一预定角度, 之后令退纸辊停止转动并且使分离辊继 续转动。 为了实现上述方法, 可以设置两个驱动机构分别驱动退纸辊和分离辊, 每当薄片 类介质的前端进入分离辊和退纸辊之间时,第一驱动机构驱动分离辊沿进纸方向转动, 第二驱动机构驱动退纸辊沿退纸方向回转一预定角度后停止驱动退纸辊转动;优选的, 也可以仅设置一个驱动机构驱动分离辊, 其中, 退纸辊由分离辊驱动而间歇回转, 退 纸辊在分离辊每回转一周时间歇回转一次。 下面对实现分离方法的优选分离机构进行详细描述。 图 3至图 6示出了根据本发明的薄片类介质的分离机构的结构示意图。 如图 3至 图 6所示, 本发明提供的薄片类介质的分离机构包括机架、 分离组件 1和驱动组件 2。 其中, 机架包括左侧壁 81、 右侧壁 82、 第一通道板 84a, 以及第二通道板 84b, 其中, 左侧壁 81和右侧壁 82相互平行且间隔预定距离设置, 两者之间的宽度大于等于薄片
类介质的最大宽度;第一通道板 84a和第二通道板 84b均垂直地支撑在左侧壁 81和右 侧壁 82之间, 两者之间形成薄片类介质的输送通道。 分离组件 1包括位于输送通道两侧且相对设置的分离辊 11和退纸辊 12, 用于将 单张薄片类介质从一叠多张薄片类介质中分离出来, 并沿进纸方向输送。 以下为叙述 方便, 将与薄片类介质进纸方向相反的方向称为退纸方向。 其中, 分离辊 11用于驱动与其接触的薄片类介质向下游输送。 分离辊 11位于输 送通道的一侧, 分离辊 11的轴向沿薄片类介质的宽度方向延伸, 可绕自身轴线转动。 分离辊 11包括第一芯轴 111和第一辊轮 112。其中,第一芯轴 111的两端由机架支撑, 在驱动组件 2的驱动下,第一芯轴 111可以绕自身轴线沿进纸方向转动;第一辊轮 112 固定设置在第一芯轴 111 的外周, 其周长大于单张薄片类介质沿输送方向的长度, 可 以是一根长度与薄片类介质最大宽度相适配的一体辊, 也可以是沿第一芯轴 111轴向 间隔排布的分段辊, 当第一芯轴 111转动时, 第一辊轮 112随之同步转动, 第一辊轮 112与薄片类介质之间的摩擦力大于薄片类介质之间的摩擦力, 优选地, 第一辊轮 112 的材料为橡胶。本实施例中, 分离辊 11位于第二通道板 84b背离输送通道的一侧, 第 一辊轮 112包括沿第一芯轴 111轴向设置的两段分段辊 112a, 第一辊轮 112穿过第二 通道板 84b上的缺口 (图中未标出) 进入输送通道。 退纸辊 12与分离辊 11相对, 位于输送通道的另一侧, 用于驱动与其接触的薄片 类介质沿退纸方向移动。 退纸辊 12包括第二芯轴 121和第二辊轮 122。 其中, 第二芯 轴 121两端由左侧壁 81和右侧壁 82支撑, 其轴线与分离辊 11的第一芯轴 111平行, 第二芯轴 121可绕自身轴线自由转动;第二辊轮 122固定设置在第二芯轴 121的外周, 与分离辊 11的第一辊轮 112相对设置,可以是一根长度与薄片类介质最大宽度相适配 的一体辊, 也可以是沿第二芯轴 121轴向间隔排布的分段辊, 当第二芯轴 121转动时, 第二辊轮 122随之同步转动, 第二辊轮 122与薄片类介质之间的摩擦力大于薄片类介 质与薄片类介质之间的摩擦力, 小于第一辊轮 112与薄片类介质之间的摩擦力。 本实 施例中, 退纸辊 12位于第一通道板 84a背离输送通道的一侧, 第二辊轮 122为沿第二 芯轴 121轴向排布的与分离辊 11的第一辊轮 112相对应的两段分段辊 122a, 第二辊 轮 122穿过第一通道板 84a上的缺口 (图中未标出) 进入输送通道。 驱动组件 2与分离组件 1传动连接, 用于驱动分离组件 1进行分离操作。 驱动组 件 2包括电机 21、 传动组件、 单向轴承 26、 拨杆 23、 偏心件, 以及弹性元件 25。 电机 21固定设置在机架的支撑壁 83上, 用于驱动分离辊 11沿进纸方向转动。其 中,支撑壁 83位于左侧壁 81或右侧壁 82的背离输送通道的一侧; 传动组件用于将电
机输出的转矩传递给分离辊 11, 本实施例中, 传动组件包括电机带轮 211、 第一带轮 111a和齿形带 22, 其中, 电机带轮 211与电机 21的输出轴固定连接, 第一带轮 111a 与第一芯轴 111的一端固定连接, 齿形带 22的一端与电机带轮 211啮合连接, 另一端 与第一带轮 111a啮合连接, 用于将电机 21输出的转矩传递给分离辊 11 的第一芯轴 111。 单向轴承 26的内圈与退纸辊 12的第二芯轴 121的一端 121a连接, 单向轴承 26 的外圈与拨杆 23的一端的内孔 23a连接,拨杆 23的未与单向轴承 26连接的一端悬空。 当推动拨杆 23驱动单向轴承 26沿进纸方向旋转时, 单向轴承 26与退纸辊 12的第二 芯轴 121之间打滑, 第二芯轴 121固定不动, 即退纸辊 12不转动; 当推动拨杆 23驱 动单向轴承 26沿退纸方向旋转时, 单向轴承 26抱紧第二芯轴 121,带动第二芯轴 121 也即退纸辊 12随单向轴承 26同步沿退纸方向转动。 偏心件与第一芯轴 111的一端固定套接,沿进纸方向位于拨杆 23的悬空端的下游, 当电机 21驱动分离辊 11的第一芯轴 111沿进纸方向转动时, 偏心件随之同步转动。 本实施例中偏心件为凸轮 24, 凸轮 24包括向远离其转动中心延伸的工作面 24a, 在凸 轮 24转动过程中, 工作面 24a可以与拨杆 23的悬空端接触或分离。 当工作面 24a与 拨杆 23接触时, 可推动拨杆 23驱动单向轴承 26沿退纸方向转动。 弹性元件 25的一端与拨杆 23连接, 另一端与机架连接,在弹性元件 25的弹性力 的作用下,拨杆 23的悬空端始终具有向靠近凸轮 24方向转动至初始位置的运动趋势。 本实施例中, 支撑壁 83位于机架的右侧壁 82的外侧, 凸轮 24和第一带轮 111a 并列设置在第一芯轴 111的临近右侧壁 82的一端。 需要说明的是, 在本发明提供的其他实施例中, 传动组件也由多个齿轮组成, 通 过齿轮的啮合将电机 21输出的转矩传递给分离辊 11。 比如第一芯轴 111 的一端固定 套接有第一齿轮, 电机 21的输出轴上固定套接有电机齿轮,第一齿轮与电机齿轮中通 过多个齿轮过渡啮合传动连接。 下面介绍本发明提供的薄片类介质的分离机构的工作过程。 当薄片类介质进入输送通道时, 驱动组件 2的电机 21通过电机带轮 211、 齿形带 22、 第一带轮 111a驱动第一芯轴 111沿进纸方向转动, 第一辊轮 112和凸轮 24随第 一芯轴 111 同步沿进纸方向转动。 当薄片类介质的前端进入分纸辊和退纸辊之间时, 凸轮 24的工作面 24a与拨杆 23接触时, 克服弹性元件 25的弹性力推动拨杆 23从初 始位置绕退纸辊 12的第二芯轴 121转动设定角度, 拨杆 23转动过程中驱动单向轴承
26沿退纸方向转动, 单向轴承 26抱紧第二芯轴 121, 从而带动退纸辊 12随单向轴承 26沿退纸方向转动。 此时, 如果位于分离辊 11和退纸辊 12之间的薄片类介质为两张 或者两张以上,与分离辊 11接触的薄片类介质受到的作用力包括薄片类介质与分离辊 11的第一辊轮 112之间的摩擦力和薄片类介质与薄片类介质之间的摩擦力, 由于薄片 类介质与分离辊 11的第一辊轮 112之间的摩擦力大于薄片类介质与薄片类介质之间的 摩擦力, 因此, 与分离辊 11接触的薄片类介质能够沿进纸方向输送; 与退纸辊 12接 触的薄片类介质受到薄片类介质与薄片类介质之间的摩擦力以及退纸辊 12 的第二辊 轮 122与薄片类介质之间的摩擦力,由于退纸辊 12的第二辊轮 122与薄片类介质之间 的摩擦力大于薄片类介质与薄片类介质之间的摩擦力, 因此, 与退纸辊 12接触的薄片 类介质沿退纸方向移动, 这样, 位于分离辊 11与退纸辊 12之间的多张薄片类介质被 分开, 只有与分离辊 11接触的薄片类介质能够沿进纸方向输送。 当拨杆 23转动设定角度后, 凸轮 24的工作面 24a与拨杆 23的悬空端的分离, 拨 杆 23在弹性元件 25的作用下绕退纸辊 12的第二芯轴 121转动恢复至初始位置,拨杆 23转动过程中驱动单向轴承 26沿进纸方向转动, 单向轴承 26与退纸辊 12的第二芯 轴 121之间打滑, 退纸辊 12停止转动, 而分离辊 11继续转动, 驱动单张薄片类介质 沿进纸方向输送。 如果位于分离辊 11与退纸辊 12之间的薄片类介质为单张薄片类介质时, 此时分 离辊 11与薄片类介质之间的摩擦力大于退纸辊 12与薄片类介质之间的摩擦力, 因此 单张的薄片类介质能够沿进纸方向输送。 分离机构的退纸辊的转轴通过单向轴承与拨杆连接, 当薄片类介质的前端进入分 离辊与退纸辊之间时, 与分离辊传动连接的凸轮的工作面推动拨杆由初始位置绕退纸 辊的轴心转动, 拨杆转动过程中驱动单向轴承沿退纸方向转动, 从而带动退纸辊随单 向轴承沿退纸方向转动设定角度,以分离进入分离辊与退纸辊之间的多张薄片类介质; 当薄片类介质进入分离辊与退纸辊之间后, 凸轮的工作面与拨杆分离, 拨杆在弹性元 件的作用下复位至初始位置,拨杆在转动过程中由于单向轴承的作用退纸辊不会转动, 分离辊驱动薄片类介质沿进纸方向输送。 本发明提供的薄片类介质的分离机构, 退纸 辊仅在薄片类介质进入退纸辊与分离辊之间时间歇性转动, 在单张薄片类介质进入分 离辊与退纸辊之间后停止转动, 减少了对单张薄片类介质的输送阻力, 从而实现单张 的薄片类介质的顺利输送。 进一步地, 分离机构还包括挡纸板 3和输送辊 4。 如图 3所示, 沿进纸方向, 输 送辊 4、 挡纸板 3依次设置在分离组件 1的上游。
沿进纸方向, 输送辊 4位于分离辊 11的上游, 与分离辊 11共同位于输送通道的 同一侧。 输送辊 4包括第三芯轴 41和第三辊轮 42, 其中, 第三芯轴 41沿薄片类介质 宽度方向延伸,其两端由机架的左侧壁 81和右侧壁 82支撑; 第三辊轮 42固定设置在 第三芯轴 41的外周,可以是一根长度与薄片类介质最大宽度相适配的一体辊, 也可以 是沿第三芯轴 41轴向间隔排布的分段辊, 当第三芯轴 41转动时,第三辊轮 42随第三 芯轴 41同步转动。本实施例中,输送辊 4位于第二通道板 84b的背离输送通道的一侧, 第三辊轮 42包括沿第三芯轴 41轴向设置的两段分段辊 42a, 两段第三辊轮 42a分别 穿过第二通道板 84b上的缺口进入输送通道, 可与输送通道内的薄片类介质接触。 传动组件还包括固定设置在分离辊 11的第一芯轴 111的一端的第一齿轮 111b、固 定设置在第三芯轴 41 的一端的第二齿轮 41a, 以及同时与第一齿轮 l l lb、 第二齿轮 41a啮合连接的过渡齿轮 41b, 当第一芯轴 111转动时, 第三芯轴 41随之同步转动。 挡纸板 3位于退纸辊 12与输送辊 4之间, 与退纸辊 12共同位于输送通道的同一 侧。 挡纸板 3呈圆弧形, 与机架固定连接, 沿薄片类介质宽度方向延伸, 覆盖在退纸 辊 12表面, 沿进纸方向, 挡纸板 3与第二通道板 84b之间的距离逐渐减小, 用于引导 多张薄片类介质依次进入退纸辊 12与分离辊 11之间。 下面介绍本实施例提供的分离机构的工作过程。 当多张薄片类介质位于输送通道内时, 驱动组件 2驱动分离辊 11转动, 与分离辊 11的第一芯轴 111传动连接的输送辊 4随分离辊 11 同步转动, 将多张薄片类介质向 挡纸板 3方向输送, 受挡纸板 3限制, 薄片类介质的前端依次错开堆叠, 其中, 与第 二通道板 84b接触的薄片类介质前端最靠近分离辊 11与退纸辊 12之间的入口, 当与 分离辊 11接触的薄片类介质被向下游输送之后,前端错开堆叠的薄片类介质依次与分 离辊 11接触, 使分离辊 11的分离成功率更高。 因此, 通过在分离辊 11和退纸辊 12 上游增设挡纸板 3, 能够引导多张薄片类介质依次进入分离辊 11和退纸辊 12之间以 进行分离, 进一步提高了分离机构的成功率。 需要指出的是, 本发明的分离方法还可通过其他的分离机构来实现。 例如在分离 辊上安装扇形齿轮, 在退纸辊上安装单向轴承, 在单向轴承上安装与扇形齿轮通过过 渡齿轮啮合传动的驱动齿轮, 通过选择奇数个过渡齿轮可令驱动齿轮的转动方向与扇 形齿轮的转动方向相反, 从而实现退纸辊间歇转动的效果。 以上所述仅为本发明的优选实施例而已, 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 一种薄片类介质的分离方法, 其特征在于, 包括:
分离辊 (11 ) 驱动薄片类介质沿进纸方向移动,
与所述分离辊 (11 ) 相对设置的退纸辊 (12) 沿退纸方向间歇回转, 以实 现薄片类介质的分离。 根据权利要求 1所述的薄片类介质的分离方法, 其特征在于, 所述退纸辊(12) 由所述分离辊 (11 ) 驱动而间歇回转, 所述退纸辊 (12) 在所述分离辊 (11 ) 每回转一周的时间内间歇回转一次。 一种薄片类介质的分离机构, 包括机架、 在机架上相对设置的分离辊 (11 ) 和 退纸辊(12)、 以及驱动所述分离辊(11 )转动的驱动机构, 其特征在于, 还包 括套设在所述分离辊 (11 ) 上的偏心件、 设置在所述退纸辊 (12) 上的可沿退 纸方向回转的单向轴承(26)、 以及设置在所述单向轴承(26)上的可由所述偏 心件拨动的拨杆(23 ), 其中, 所述分离辊(11 )驱动薄片类介质沿进纸方向移 动, 所述退纸辊 (12) 沿退纸方向间歇回转。 根据权利要求 3所述的薄片类介质的分离机构, 其特征在于, 还包括使所述拨 杆 (23 ) 抵接在所述偏心件上的弹性元件 (25 )。 根据权利要求 3所述的薄片类介质的分离机构, 其特征在于, 所述偏心件为凸 轮 (24)。 根据权利要求 3所述的薄片类介质的分离机构, 其特征在于, 所述驱动机构包 括电机 (21 ) 及设置在所述电机 (21 ) 与所述分离辊 (11 ) 之间的传动组件。 根据权利要求 3所述的薄片类介质的分离机构, 其特征在于, 还包括沿进纸方 向位于所述分离辊( 11 )上游的输送辊(4),所述输送辊(4)与所述分离辊( 11 ) 传动连接。 根据权利要求 3所述的薄片类介质的分离机构, 其特征在于, 还包括沿进纸方 向位于所述退纸辊 (12) 上游的挡纸板 (3 )。 根据权利要 3所述的薄片类介质的分离机构, 其特征在于, 所述机架包括左侧 壁 (81 )、 右侧壁 (82)、 位于所述左侧壁 (81 ) 和所述右侧壁 (82) 之间形成
薄片类介质的输送通道的第一通道板(84a)和第二通道板(84b), 所述分离辊 ( 11 ) 和退纸辊 (12) 均包括芯轴和进入所述输送通道中的辊轮。
10. 根据权利要求 3所述的薄片类介质的分离机构, 其特征在于, 所述分离辊(11 ) 与薄片类介质之间的摩擦力大于所述退纸辊(12)与薄片类介质之间的摩擦力。
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JPS56145048A (en) * | 1980-04-14 | 1981-11-11 | Ricoh Co Ltd | Paper feeder |
JPS5767434A (en) * | 1980-10-09 | 1982-04-24 | Ricoh Co Ltd | Paper feeder |
CN1919709A (zh) * | 2006-09-04 | 2007-02-28 | 山东山大鸥玛软件有限公司 | 一种纸张进给及重张分离控制装置 |
CN101125616A (zh) * | 2006-08-15 | 2008-02-20 | 虹光精密工业(苏州)有限公司 | 自动走纸器的储能式分纸装置 |
CN101580183A (zh) * | 2009-06-05 | 2009-11-18 | 广州广电运通金融电子股份有限公司 | 薄片材料分离机构 |
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JPH06191667A (ja) * | 1992-12-24 | 1994-07-12 | Fuji Xerox Co Ltd | 給紙装置 |
CN200946053Y (zh) * | 2006-09-04 | 2007-09-12 | 山东山大鸥玛软件有限公司 | 一种纸张进给及重张分离控制装置 |
-
2012
- 2012-11-06 CN CN201210439218.8A patent/CN103803318B/zh active Active
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Publication number | Priority date | Publication date | Assignee | Title |
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JPS56145048A (en) * | 1980-04-14 | 1981-11-11 | Ricoh Co Ltd | Paper feeder |
JPS5767434A (en) * | 1980-10-09 | 1982-04-24 | Ricoh Co Ltd | Paper feeder |
CN101125616A (zh) * | 2006-08-15 | 2008-02-20 | 虹光精密工业(苏州)有限公司 | 自动走纸器的储能式分纸装置 |
CN1919709A (zh) * | 2006-09-04 | 2007-02-28 | 山东山大鸥玛软件有限公司 | 一种纸张进给及重张分离控制装置 |
CN101580183A (zh) * | 2009-06-05 | 2009-11-18 | 广州广电运通金融电子股份有限公司 | 薄片材料分离机构 |
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