WO2013034061A1 - 搅拌架及碳粉盒 - Google Patents

搅拌架及碳粉盒 Download PDF

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Publication number
WO2013034061A1
WO2013034061A1 PCT/CN2012/080674 CN2012080674W WO2013034061A1 WO 2013034061 A1 WO2013034061 A1 WO 2013034061A1 CN 2012080674 W CN2012080674 W CN 2012080674W WO 2013034061 A1 WO2013034061 A1 WO 2013034061A1
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WIPO (PCT)
Prior art keywords
toner
flexible sheet
rotating shaft
twisted
axial direction
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PCT/CN2012/080674
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English (en)
French (fr)
Inventor
谢中荃
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珠海天威飞马打印耗材有限公司
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Publication of WO2013034061A1 publication Critical patent/WO2013034061A1/zh

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865—Arrangements for supplying new developer
    • G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
    • G03G15/087—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge
    • G03G15/0872—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge the developer cartridges being generally horizontally mounted parallel to its longitudinal rotational axis
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0865—Arrangements for supplying new developer
    • G03G15/0867—Arrangements for supplying new developer cylindrical developer cartridges, e.g. toner bottles for the developer replenishing opening
    • G03G15/087—Developer cartridges having a longitudinal rotational axis, around which at least one part is rotated when mounting or using the cartridge

Definitions

  • the present invention relates to a toner cartridge used in an electrophotographic image forming apparatus and a stirring frame for agitating the toner in the toner cartridge.
  • the present invention is based on a Chinese utility model patent application filed on Sep. 05, 2011, with the application number 201120331108.0, the content of which is hereby incorporated herein by reference.
  • An electrophotographic image forming apparatus is usually provided with an image processing unit and a developing unit for developing an electrostatic latent image formed on the image processing unit by using the toner supplied from the developing unit to form a visible image on a medium such as paper.
  • toner as a consumable needs to be continuously supplied to the image processing unit.
  • a toner cartridge having a toner containing a certain amount of toner detachably mounted in an electrophotographic image forming apparatus is generally provided with toner to the electrophotographic image forming apparatus, and the toner accommodating portion of the toner cartridge is generally provided with a stirring toner and a toner The mixer that moves to the toner discharge port.
  • Fig. 1 shows a conventional toner cartridge having a casing 1 having a housing containing toner therein, the powder outlet 11 being disposed near one end of the longitudinal direction thereof, and a powder outlet cover 12 for selectively opening and closing the powder outlet 11,
  • the toner containing portion has a stirring frame rotatably supported on the longitudinal end walls of the toner receiving portion, the stirring frame comprises a rotating shaft 13 and a flexible sheet 14, driving the stirring frame
  • the rotating drive gear 15 is disposed outside the casing 1, and the flexible sheet 14 is mounted on the mounting surface 131 of the rotary shaft 13 extending in the axial direction thereof, wherein the mounting surface 131 is a flat surface, and the flexible sheet 14 is flatly fixed to the rotary shaft 13.
  • the stirring resistance is large and the carbon powder is not easily moved along the axial direction of the stirring frame, that is, the carbon powder is not easily moved toward the powder discharging port 11 as the mixing frame rotates, and the stirring gear has a large stirring resistance after working for a long time.
  • the free ends of the axial ends of the flexible sheet 14 are prone to permanent deformation, and no longer adhere to the inner wall of the toner cartridge, so that the end opposite to the powder outlet 11 is liable to remain toner and cannot be transported to the electrophotographic image forming apparatus. It is wasteful, and the toner remaining in the discarded toner cartridge can also cause environmental pollution.
  • the Chinese patent document CN101859086A discloses a toner cartridge which is disposed at a central portion of the longitudinal direction of the casing and is stirred.
  • the frame includes a rotating shaft 22 and a flexible sheet 23, wherein the rotating shaft 22 is provided with an arcuate mounting surface 221 for mounting the flexible sheet 23, so that the flexible sheet 23 and the mounting end are provided.
  • the opposite free end has a characteristic that both ends precede the central portion in the rotation direction of the agitating frame, and the free end in contact with the inner surface of the toner cartridge causes the toner to be toner from the both ends to the central portion along the axial direction of the agitating frame
  • the discharge port moves.
  • the mixing frame of the toner cartridge is extremely bulky due to the provision of the arcuate mounting surface, the torque is large, and the damage is easy, and the free ends located at both ends are still prone to permanent deformation and affect the stirring function.
  • the main object of the present invention is to provide a stirring frame which is simple in structure, reliable in operation, and capable of achieving directional movement of toner;
  • Another object of the present invention is to provide a toner cartridge to which the agitator is applied.
  • the present invention provides a stirring frame comprising a rotating shaft and a flexible piece.
  • the rotating shaft is disposed along a axial direction thereof with a mounting surface on which the flexible piece is mounted, and the flexible piece is fixed on the mounting surface through the fixed end thereof, and the flexible piece has a The opposite ends of the fixed ends, wherein the mounting faces are at least partially twisted faces that are axially twisted.
  • the twisted surface is disposed along the axial direction of the rotating shaft as two left and right segments having opposite twist directions. According to the direction of rotation of the mixing frame, the twisting direction of the twisted surface can be used to realize the directional movement of the toner to the middle portion thereof, and it is suitable for the toner cartridge whose powder outlet is arranged in the middle of the length direction.
  • the mounting surface is arranged in the left, middle, and right three sections along the axial direction of the rotating shaft, the left and right sections are twisted surfaces and the twisting directions are opposite, the middle section is a plane, and the flexible piece is correspondingly set to the left, middle, and right. sheet.
  • the twisting direction of the twisted surface can be used to realize the directional movement of the toner to the middle portion.
  • the design is also directed to the toner cartridge which is disposed in the middle of the longitudinal direction of the powder outlet, and the middle portion is set to a plane to push the toner toward the direction.
  • the supply is relatively uniform when the powder is opened.
  • the length of the middle flexible sheet from its fixed end to its free end is greater than the length of the left and right flexible sheets from their fixed ends to their free ends.
  • the middle flexible sheet is long so that the free end is in contact with the inner surface of the toner cartridge, and the left and right flexible sheets are viewed from the rotation direction of the stirring frame, and the middle flexible sheet is downstream of the left and right flexible sheets, which is more advantageous for the left and right flexible sheets to be
  • the toner transferred from both ends of the toner cartridge is pushed out from the powder outlet located in the middle.
  • the twisted surface is a spiral surface centered on the axis of the rotating shaft.
  • the twisted surface is centered on the axis of the rotating shaft to make it easier to balance the rotating frame and reduce the torque of the mixing frame, so that the life of the mixing frame increases.
  • the toner cartridge of the present invention has a casing comprising a toner accommodating portion for accommodating the carbon powder; the powder discharging port is disposed on the casing, and the toner in the toner accommodating portion is discharged through the powder discharging port; the stirring frame is rotatable Supported in the toner accommodating portion for agitating the toner contained in the toner accommodating portion, comprising a rotating shaft and a flexible sheet, the rotating shaft is disposed along the axial direction thereof with a mounting surface on which the flexible sheet is mounted, and the flexible sheet is fixed by the fixed end thereof On the mounting surface, the flexible sheet has a free end opposite to the fixed end and is in contact with the inner surface of the toner accommodating portion, wherein the mounting surface is at least partially a twisted surface that is twisted in the axial direction, and the powder outlet is rotated when the stirring frame rotates The toner located in the toner accommodating portion moves downstream in the axial direction.
  • the powder outlet is disposed in the longitudinal middle portion of the casing, and the twisted surface is disposed in the axial direction of the rotating shaft as the left and right two segments with opposite twist directions.
  • the twisting direction of the twisted surface is set according to the rotating direction of the stirring frame to move the toner toward the powder discharging port located in the middle of the longitudinal direction.
  • the powder outlet is disposed in the longitudinal middle portion of the toner cartridge
  • the installation surface is disposed in the left, middle, and right sections along the axial direction of the rotating shaft, and the left and right segments are twisted surfaces having opposite twist directions
  • the middle portion is The plane is corresponding to the powder outlet
  • the flexible sheets are correspondingly set to the left, middle, and right.
  • the twisting direction of the twisted surface is set according to the rotating direction of the stirring frame to move the toner toward the powder discharging port located in the middle of the longitudinal direction, and the middle portion of the flat surface is corresponding to the powder discharging port of the toner cartridge, and the toner can be smoothly supplied.
  • the length of the middle flexible sheet from its fixed end to its free end is greater than the length of the left and right flexible sheets from their fixed ends to their free ends.
  • the middle flexible sheet is long so that the contact between the free end and the inner surface of the toner cartridge along the rotation direction of the stirring frame does not precede the left and right flexible sheets, thereby smoothly moving the toner moving toward the middle in the axial direction of the rotating shaft toward the powder outlet. supply.
  • the twisted surface is a spiral surface centered on the axis of the rotating shaft.
  • the twisted surface is centered on the axis of the rotating shaft to make it easier to balance the rotating frame and reduce the torque of the mixing frame, so that the life of the mixing frame increases.
  • the mounting surface is set to a twisted surface such that the radial dimension of the rotating shaft is relatively small.
  • the flexible sheet mounted on the twisted surface extends along the twisted surface, and the free end of the flexible sheet is a spatial curve, that is, in the direction of rotation of the stirring frame, the tangential direction of the free end of the flexible sheet has an oblique angle with the axial direction of the rotating shaft.
  • the toner can be moved in the axial direction of the rotating shaft, and the stirring resistance is small, and the flexible sheet is less likely to undergo permanent deformation.
  • Figure 1 is a structural exploded view of a conventional toner cartridge
  • Figure 2 is an exploded view of the structure of the prior art mixing frame
  • Figure 3 is an exploded perspective view showing the first embodiment of the stirring frame of the present invention.
  • Figure 4 is a schematic view showing the structure of the first embodiment of the stirring frame of the present invention.
  • Figure 5 is a schematic structural view of a rotating shaft of a second embodiment of the mixing rack of the present invention.
  • Figure 6 is a schematic structural view of a second embodiment of the mixing rack of the present invention.
  • Figure 7 is a view taken along line C of Figure 6;
  • Figure 8 is a schematic view showing the structure of a second embodiment of the toner cartridge of the present invention.
  • the agitating frame includes a rotating shaft 17 and a flexible sheet 18, and a mounting surface 171 on which the flexible sheet 18 is mounted is disposed on the rotating shaft 17, and the mounting surface 171 is twisted in the axial direction, and
  • the axis of the rotating shaft 17 is a spiral surface of the center line, and the flat flexible sheet 18 is adhered to the mounting surface 171 by the double-sided tape through its fixed end, and the free end thereof extends along the mounting surface 171, so that the flexible sheet 18 also has a twisted surface.
  • the free end of the flexible sheet 18 is a space line, that is, the tangential direction of the free end of the flexible sheet 18 in the direction of rotation of the stirring frame has an oblique angle with the axial direction of the rotating shaft 17, so that the flexible sheet 18 is in use.
  • the resistance to deformation is relatively improved.
  • the stirring frame of the embodiment When the stirring frame of the embodiment is agitating, it is installed in a container such as a toner cartridge that accommodates a certain amount of carbon powder and has a powder outlet.
  • the free end of the flexible sheet 18 is a spiral centered on the axis of the stirring frame.
  • the toner Under the push of the mixing frame, the toner will move along the axial direction of the mixing frame and be discharged from the powder outlet located downstream, so that the stirring resistance is small.
  • the mounting surface 171 may not be centered on the axis of the rotating shaft 17, but may be centered on another imaginary line parallel to the axis of the rotating shaft 17, except that the balance of the rotating shaft is slightly inferior.
  • the mounting surface 171 may also be partially provided as a twisted surface, and the portion corresponding to the powder outlet of the container is disposed in a plane to achieve the function of moving the toner to and from the powder discharge port.
  • the agitator includes a rotating shaft 25 and a flexible piece.
  • the rotating shaft 25 is provided with mounting surfaces 251, 252 and 253 for mounting the flexible sheets along the axial direction thereof, wherein the left segment 251 and the right segment 253 are The twisted surface is twisted in the opposite direction, and is a spiral surface centered on the axis of the rotating shaft 25, the middle portion 252 is a flat surface, and the guide post 254 on which the flexible sheet is mounted is disposed on the mounting surface.
  • the flexible sheets 261, 262, and 263 are flat before being mounted to the mounting of the rotating shaft 25.
  • the length of the middle flexible sheet 262 from its fixed end to its free end is greater than the length of the left flexible sheet 261 and the right flexible sheet 263 from its fixed end to its free end.
  • the free end of the left flexible sheet 261 extends in the spiral direction of the left-section mounting surface 251
  • the free end of the right flexible sheet 263 extends in the twisting direction of the right-section mounting surface 253, left
  • the flexible sheet 261 and the right flexible sheet 263 are no longer flat and have a twisted surface shape, so that permanent deformation is less likely to occur, and the middle flexible sheet 262 remains flat.
  • the stirring frame In the case where the stirring frame is stirred, it is installed in a container such as a toner cartridge that accommodates a certain amount of toner and has a powder outlet.
  • the free end of the left flexible sheet 261 is a space line, that is, left in the rotation direction of the stirring frame.
  • the tangential direction of the free end of the flexible sheet 261 has an oblique angle with the axial direction of the rotating shaft 25, so that the deformation resistance of the left flexible sheet 261 during use is relatively improved, similar to the left flexible sheet 261, and the right flexible sheet 263 is resistant to deformation. The ability is also relatively improved.
  • the twisting direction of the left section mounting surface 251 and the right section mounting surface 253 is set according to the rotation direction of the agitating frame to orient the toner toward the center.
  • the middle flexible sheet 262 is opposed to the powder discharge port, and has a small stirring resistance, and even if it is flat, it is unlikely to be permanently deformed and the toner can be smoothly supplied.
  • the length of the middle flexible sheet 262 from its fixed end to its free end is greater than the length of the left flexible sheet 261 and the right flexible sheet 263 from its fixed end to its free end, so that the flexible portion of the middle section is free when viewed in the direction of rotation of the stirring frame.
  • the left-stage mounting surface 251 and the right-section mounting surface 252 may not be centered on the axis of the rotating shaft 25, but may be centered on another imaginary line parallel to the axis of the rotating shaft 17, but only the rotating shaft. The balance is slightly worse.
  • the mounting faces are disposed only in the axial direction of the rotating shaft only in the left and right sections opposite to the twisting direction, and there is no plane in the middle section.
  • the left and right mounting surfaces are spiral surfaces centered on the axis of the rotating shaft, so that the flexible sheets attached to the mounting surface are also twisted surfaces, and the flexible sheets may be one piece connected in the middle or separately mounted to the left and right sections. Two pieces of noodles.
  • the structure of the toner cartridge in this embodiment is similar to that of FIG. 1 but is not limited to the structure shown in FIG. 1, as long as the powder outlet is located at one longitudinal end thereof, and the stirring frame is a stirring frame in the first embodiment.
  • the free end of the flexible sheet 18 is in contact with the inner surface of the toner accommodating portion of the toner cartridge, and the twisting direction of the mounting surface 171 is set to be the toner when the stirring frame is rotated according to the rotating direction of the rotating shaft 17 when the stirring frame is operated.
  • the toner in the housing moves along the axial direction of the rotary shaft 17 toward the powder outlet of the end.
  • the structure of the toner cartridge in this embodiment is as shown in Fig. 8, but is not limited thereto, as long as it has the following features.
  • the toner cartridge includes a casing 2 in which a toner accommodating portion for accommodating toner is disposed, a powder discharging port 21 is disposed at a middle portion thereof, and a driving gear 24 for driving the rotation of the agitating frame is disposed at one end portion of the casing 2
  • the stirring frame is the structure in the second embodiment of the agitating frame, the flexible sheets 261, 262, 263 are in contact with the inner surface of the toner accommodating portion, and the twisting directions of the mounting surfaces 251 and 253 are set to be the rotating shaft 25 when operating according to the stirring frame
  • the rotation direction causes the agitator to rotate, and the toner in the toner accommodating portion moves toward the powder discharge port 21 in the axial direction of the rotary shaft 25.
  • the agitator uses the structure in the third embodiment of the agitator.
  • the agitator is rotated by the drive gear, and the toner is pushed along the axial direction of the rotating shaft of the agitator under the push of the agitator flexible sheet.
  • the powder outlet of the toner cartridge moves and is discharged through the powder outlet.
  • the mounting surface is set to a twisted surface which does not enlarge the rotating shaft.
  • the flexible sheet mounted on the twisted surface extends along the twisted surface, and the free end of the flexible sheet is a space line, that is, the free end of the flexible sheet is cut in the rotating direction of the stirring frame.
  • An angle of inclination to the axial direction of the rotating shaft, the twisting direction of the twisting surface is set according to the rotating direction of the stirring frame and the position of the powder discharging port, so that the toner powder located in the toner receiving portion along the shaft when the stirring frame rotates Downward to the movement, the directional movement of the toner to the powder outlet is achieved, and the stirring resistance is small, so that the flexible sheet is less likely to undergo permanent deformation.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

一种调色剂盒中的搅拌部件，包括：旋转轴（17）及柔性片（18），旋转轴（17）沿其轴向设置有安装柔性片（18）的安装面（171），柔性片（18）通过其固定端固定在安装面（171）上，柔性片（18）具有与固定端相对的自由端，其中安装面（171）为至少部分地沿轴向扭曲的扭曲面。

Description

搅拌架及碳粉盒
本发明涉及一种电子照相成像设备使用的碳粉盒及用于搅拌碳粉盒内碳粉的搅拌架。本发明基于申请日为2011年09月05日、申请号为201120331108.0的中国实用新型专利申请，该申请的内容作为与本发明密切相关的参考文献引入本文。
电子照相成像设备内通常设有图像处理单元和显影单元，利用显影单元提供的碳粉为图像处理单元上形成的静电潜像显影，以在纸张等介质上形成可见图像。其中碳粉作为消耗品，需要不断地向图像处理单元提供。一般采用可拆卸地安装至电子照相成像设备内的具有容纳一定量碳粉的碳粉盒向电子照相成像设备提供碳粉，碳粉盒的碳粉容纳部内一般设有搅拌碳粉并使碳粉向碳粉排出口移动的搅拌架。
图1示出了现有的一种碳粉盒，其具有盒体1，盒体1内有容纳碳粉的容纳部，出粉口11设置在其纵向一个端部的近旁，出粉口盖12用于有选择地启闭出粉口11，碳粉容纳部内具有可旋转地支撑在碳粉容纳部两纵向端壁上的搅拌架，搅拌架包括旋转轴13和柔性片14，驱动搅拌架旋转的驱动齿轮15设置在盒体1外侧，柔性片14安装在旋转轴13沿其轴向延伸的安装面131上，其中安装面131为平面，柔性片14平整地固定在旋转轴13上。搅拌架工作时，柔性片14的自由端沿碳粉盒的内表面滑动，从而使碳粉沿搅拌架的转动方向移动，由于在搅拌架的转动方向上柔性片14自由端的切向基本垂直于旋转轴的轴向，搅拌阻力大且碳粉不易沿搅拌架轴向移动，即碳粉不易随着搅拌架的转动而向出粉口11方向移动，搅拌架长时间工作后，由于搅拌阻力大，柔性片14轴向两端部的自由端易发生永久性形变，而不再紧贴碳粉盒内壁，从而与出粉口11相对的端部易残留碳粉，无法运送至电子照相成像设备而造成浪费，且废弃的碳粉盒内残留的碳粉也会造成环境污染。
为实现使容纳部内的碳粉随搅拌架的转动而沿搅拌架轴向的定向移动，中国专利文献CN101859086A公开了一种碳粉盒，碳粉排出口设置在盒体纵向的中心部分，其搅拌架如图2所示，包括旋转轴22和柔性片23，其中旋转轴22上设有沿轴向呈弓形的安装面221，安装面用于安装柔性片23，从而使柔性片23与安装端相对的自由端在搅拌架的转动方向上具有两端先于中心部分的特点，与碳粉盒内表面接触的自由端使碳粉沿搅拌架的轴向从两端向位于中心部分的碳粉排出口移动。但该碳粉盒的搅拌架由于设置了弓形安装面而异常笨重，转矩大，易损坏，且位于两端区域的自由端仍易发生永久性形变而影响其搅拌功能。
本发明的主要目的是提供一种结构简单、工作可靠且能实现碳粉定向移动的搅拌架；
本发明的另一目的是提供一种应用该搅拌架的碳粉盒。
为实现上述主要目的，本发明提供的搅拌架包括旋转轴及柔性片，旋转轴沿其轴向设置有安装柔性片的安装面，柔性片通过其固定端固定在安装面上，柔性片具有与固定端相对的自由端，其中安装面至少部分地为沿轴向扭曲的扭曲面。
较具体的方案为扭曲面沿旋转轴的轴向设置为扭曲方向相反的左右两段。根据搅拌架转动方向设置扭曲面的扭曲方向可实现碳粉向其中部的定向移动，它适用于出粉口设置在长度方向中部的碳粉盒。
另一较具体的方案为安装面沿旋转轴的轴向设置为左中右三段，左段及右段为扭曲面且扭曲方向相反，中段为平面，柔性片相应地设置为左中右三片。根据搅拌架转动方向设置扭曲面的扭曲方向可实现碳粉向其中部的定向移动，这种设计也针对出粉口设置在长度方向中部的碳粉盒，中段设置为平面可使碳粉推向出粉口时供应相对均匀。
更具体的方案为中柔性片从其固定端至其自由端的长度大于左右柔性片从其固定端至其自由端的长度。中柔性片较长使其自由端与碳粉盒内表面的接触后于左右柔性片，即从搅拌架的旋转方向看，中柔性片在左右柔性片的下游，更有利于把左右柔性片从碳粉盒两端移送过来的碳粉从位于中部的出粉口推出。
又一较具体的方案为扭曲面为一以旋转轴的轴线为中心线的螺旋面。扭曲面以旋转轴的轴线为中心线使搅拌架转动时更易于平衡且降低搅拌架的转矩，使搅拌架的使用寿命增长。
本发明的碳粉盒有一个盒体，盒体包括容纳碳粉的碳粉容纳部；出粉口设置在盒体上，碳粉容纳部内的碳粉通过出粉口排出；搅拌架，可旋转地支撑在碳粉容纳部，用于搅拌碳粉容纳部内容纳的碳粉，包括旋转轴及柔性片，旋转轴沿其轴向设置有安装柔性片的安装面，柔性片通过其固定端固定在所述安装面上，柔性片具有与固定端相对的自由端与碳粉容纳部的内表面接触，其中安装面至少部分地为沿轴向扭曲的扭曲面，搅拌架转动时，出粉口位于碳粉容纳部内的碳粉沿轴向移动的下游。
较具体的方案为出粉口设置于盒体的纵向中部，扭曲面沿旋转轴的轴向设置为扭曲方向相反的左右两段。根据搅拌架转动方向设置扭曲面的扭曲方向使碳粉向位于纵向中部的出粉口定向移动。
另一较具体的方案为出粉口设置于碳粉盒的纵向中部，安装面沿旋转轴的轴向设置为左中右三段，左段与右段为扭曲方向相反的扭曲面，中段为平面且与出粉口相对应，柔性片相应地设置为左中右三片。根据搅拌架转动方向设置扭曲面的扭曲方向使碳粉向位于纵向中部的出粉口定向移动，设置为平面的中段对应碳粉盒的出粉口，能平稳地供应碳粉。
更具体的方案为中柔性片从其固定端至其自由端的长度大于左右柔性片从其固定端至其自由端的长度。中柔性片较长使沿搅拌架的旋转方向其自由端与碳粉盒内表面的接触不先于左右柔性片，从而把沿旋转轴轴向的向中部移动的碳粉平稳地向出粉口供应。
又一较具体的方案为所述扭曲面为一以旋转轴的轴线为中心线的螺旋面。扭曲面以旋转轴的轴线为中心线使搅拌架转动时更易于平衡且降低搅拌架的转矩，使搅拌架的使用寿命增长。
安装面设置为扭曲面，使旋转轴的径向尺寸相对较小。安装在扭曲面上的柔性片沿扭曲面延伸，柔性片的自由端为一空间曲线，即在搅拌架的转动方向上，柔性片的自由端的切向与旋转轴的轴向具有一倾斜角度，能实现使碳粉沿旋转轴轴向的移动，且搅拌阻力小，柔性片不易发生永久性形变。
图1是现有碳粉盒的结构分解图；
图2是现有搅拌架的结构分解图；
图3是本发明搅拌架第一实施例的结构分解图；
图4是本发明搅拌架第一实施例的结构示意图；
图5是本发明搅拌架第二实施例的旋转轴的结构示意图；
图6是本发明搅拌架第二实施例的结构示意图；
图7是图6的C向视图；
图8是本发明碳粉盒第二实施例的结构示意图。
下面结合附图对本发明作详细说明。
搅拌架第一实施例
如图3和图4所示，搅拌架包括旋转轴17和柔性片18，旋转轴17上沿其轴向设置有安装柔性片18的安装面171，安装面171沿轴向扭曲，且为以旋转轴17的轴线为中心线的螺旋面，平整的柔性片18用双面胶通过其固定端粘贴在安装面171上后其自由端沿安装面171延伸，因而柔性片18也呈一扭曲面状，柔性片18的自由端为一空间线，即在搅拌架的转动方向上柔性片18的自由端的切向与旋转轴17的轴向具有一倾斜角度，从而柔性片18在使用过程中的抗形变能力得以相对提高。
本实施例的搅拌架进行搅拌工作时，需安装至碳粉盒等容纳一定量碳粉且具有出粉口的容器内，柔性片18的自由端为一以搅拌架轴线为中心线的螺旋线，碳粉在搅拌架的推动下，将沿搅拌架轴向移动并从位于下游的出粉口排出，从而搅拌阻力较小。在本实施例中，安装面171可不以旋转轴17的轴线为中心线，而是以平行于旋转轴17的轴线的另一假想线为中心线，只是旋转轴的平衡性稍差。安装面171也可部分地设置为扭曲面，对应于容器出粉口的部分设置为平面仍可实现碳粉向出粉口移动并经由其排出的功能。
搅拌架第二实施例
如图5和图6所示，搅拌架包括旋转轴25和柔性片，旋转轴25上沿其轴向设置有安装柔性片的安装面251、252及253，其中左段251及右段253为扭曲方向相反的扭曲面，且为以旋转轴25的轴线为中心线的螺旋面，中段252为平面，安装柔性片的引导柱254设置在安装面上。在安装至旋转轴25的安装面前，柔性片261、262及263为平整的。
如图7所示，中柔性片262从其固定端至其自由端的长度大于左柔性片261及右柔性片263从其固定端至其自由端的长度。在柔性片通过其固定端安装至安装面后，左柔性片261的自由端沿左段安装面251的螺旋方向延伸，右柔性片263的自由端沿右段安装面253的扭曲方向延伸，左柔性片261及右柔性片263不再平整而呈扭曲面状，从而不易发生永久性形变，中柔性片262仍保持平整。
本例搅拌架进行搅拌时，需安装至碳粉盒等容纳一定量碳粉且具有出粉口的容器内，左柔性片261的自由端为一空间线，即在搅拌架的转动方向上左柔性片261的自由端的切向与旋转轴25的轴向具有一倾斜角度，从而左柔性片261在使用过程中的抗形变能力得以相对提高，与左柔性片261类似，右柔性片263抗形变能力也相对提高。根据搅拌架转动方向设置左段安装面251与右段安装面253的扭曲方向使碳粉向中部定向移动。中柔性片262与出粉口相对，搅拌阻力小，即使其为平整的也不易发生永久性形变且能平稳地供应碳粉。中柔性片262从其固定端至其自由端的长度大于左柔性片261及右柔性片263从其固定端至其自由端的长度，从而以搅拌架的转动方向来看时，中段的柔性片的自由端与碳粉盒内表面的接触不先于左柔性片261及右柔性片263，从而沿旋转轴25的轴向向中部移动的碳粉平稳地向碳粉盒的出粉口供应。在本实施例中，左段安装面251及右段安装面252可不以旋转轴25的轴线为中心线，而是以平行于旋转轴17的轴线的另一假想线为中心线，只是旋转轴的平衡性稍差。
搅拌架第三实施例
与第二实施例中的搅拌架类似，只是安装面沿旋转轴的轴向只设置为扭曲方向相反的左右两段，没有中段的平面。左右两段安装面为以旋转轴的轴线为中心线的螺旋面，从而安装至安装面上的柔性片也为扭曲面，柔性片可以为中间连接的一片，也可为分别安装至左右段安装面的两片。
碳粉盒第一实施例
本实施例中的碳粉盒的结构与图1类似但不限于图1中所示的结构，只要其出粉口位于其一纵向端部即可，其搅拌架为搅拌架第一实施例中的结构，且柔性片18的自由端与碳粉盒的碳粉容纳部的内表面接触，安装面171的扭曲方向设置为根据搅拌架工作时旋转轴17的转动方向使搅拌架转动时碳粉容纳部内的碳粉沿旋转轴17的轴向向端部的出粉口移动。
碳粉盒第二实施例
本实施例中的碳粉盒的结构如图8所示但并不局限于此，只要具有以下特征即可。碳粉盒包括盒体2，盒体2内设置有容纳碳粉的碳粉容纳部，出粉口21设置在其纵向的中部，驱动搅拌架旋转的驱动齿轮24设置在盒体2的一端部，其搅拌架为搅拌架第二实施例中的结构，柔性片261、262、263与碳粉容纳部的内表面接触，安装面251和253的扭曲方向设置为根据搅拌架工作时旋转轴25的转动方向使搅拌架转动是碳粉容纳部内的碳粉沿旋转轴25的轴向向出粉口21移动。
碳粉盒第三实施例
与碳粉盒第二实施例中的结构类似，只其搅拌架采用搅拌架第三实施例中的结构。
根据本发明的各碳粉盒实施例在安装至电子照相成像设备内使用时，搅拌架在驱动齿轮的驱动下旋转，碳粉在搅拌架柔性片的推动下沿搅拌架旋转轴的轴向向碳粉盒的出粉口移动并经由出粉口排出。
以上是本发明的较佳实施例，本发明包括但不限于此，凡采用等效变换等方式的技术方案都落在本发明的保护范围内。
安装面设置为扭曲面不会使旋转轴加大，安装在扭曲面上的柔性片沿扭曲面延伸，柔性片的自由端为一空间线即在搅拌架的转动方向上柔性片的自由端的切向与旋转轴的轴向具有一倾斜角度，根据搅拌架的转动方向及出粉口的位置设置扭曲面的扭曲方向，使搅拌架转动时，出粉口位于碳粉容纳部内的碳粉沿轴向移动的下游，从而实现碳粉向出粉口的定向移动，同时搅拌阻力小使柔性片不易发生永久性形变。

Claims (10)

  1. 搅拌架，包括旋转轴及柔性片，所述旋转轴沿其轴向设置有安装所述柔性片的安装面，所述柔性片通过其固定端固定在所述安装面上，所述柔性片具有与所述固定端相对的自由端；
    其特征在于：
    所述安装面至少部分地为沿轴向扭曲的扭曲面。
  2. 根据权利要求1所述的搅拌架，其特征在于：
    所述扭曲面沿所述旋转轴的轴向设置为扭曲方向相反的左右两段。
  3. 根据权利要求1所述的搅拌架，其特征在于：
    所述安装面沿所述旋转轴的轴向设置为左中右三段，所述左段及所述右段为扭曲面且扭曲方向相反，所述中段为平面，所述柔性片相应地设置为左中右三片。
  4. 根据权利要求3所述的搅拌架，其特征在于：
    所述中柔性片从其固定端至其自由端的长度大于所述左右柔性片从其固定端至其自由端的长度。
  5. 根据权利要求1至4任一项所述的搅拌架，其特征在于：
    所述扭曲面为一以所述旋转轴的轴线为中心线的螺旋面。
  6. 碳粉盒，包括：
    盒体，所述盒体包括容纳碳粉的碳粉容纳部；
    出粉口，设置在所述盒体上，所述碳粉容纳部内的碳粉通过所述出粉口排出；
    搅拌架，可旋转地支撑在所述碳粉容纳部，用于搅拌所述碳粉容纳部内容纳的碳粉，所述搅拌架包括旋转轴及柔性片，所述旋转轴沿其轴向设置有安装所述柔性片的安装面，所述柔性片通过其固定端固定在所述安装面上，所述柔性片具有与所述固定端相对的自由端，所述自由端与所述碳粉容纳部的内表面接触；
    其特征在于：
    所述安装面至少部分地为沿轴向扭曲的扭曲面；
    所述搅拌架转动时，所述出粉口位于所述碳粉容纳部内的碳粉沿轴向移动的下游端。
  7. 根据权利要求6所述的碳粉盒，其特征在于：
    所述出粉口设置于所述盒体的纵向中部，所述扭曲面沿所述旋转轴的轴向设置为扭曲方向相反的左右两段。
  8. 根据权利要求6所述的碳粉盒，其特征在于：
    所述出粉口设置于所述盒体的纵向中部，所述安装面沿所述旋转轴的轴向设置为左中右三段，所述左段与所述右段为扭曲方向相反的扭曲面，所述中段为平面且与所述出粉口相对应，所述柔性片相应地设置为左中右三片。
  9. 根据权利要求8所述的碳粉盒，其特征在于：
    所述中柔性片从其固定端至其自由端的长度大于所述左右柔性片从其固定端至其自由端的端部的长度。
  10. 根据权利要求6至9任一项所述的碳粉盒，其特征在于：
    所述扭曲面为一以所述旋转轴的轴线为中心线的螺旋面。
PCT/CN2012/080674 2011-09-05 2012-08-29 搅拌架及碳粉盒 WO2013034061A1 (zh)

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