WO2013067891A1 - Processing cartridge - Google Patents
Processing cartridge Download PDFInfo
- Publication number
- WO2013067891A1 WO2013067891A1 PCT/CN2012/083741 CN2012083741W WO2013067891A1 WO 2013067891 A1 WO2013067891 A1 WO 2013067891A1 CN 2012083741 W CN2012083741 W CN 2012083741W WO 2013067891 A1 WO2013067891 A1 WO 2013067891A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- free end
- blade
- elastic sealing
- developing roller
- sealing member
- Prior art date
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Classifications
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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
- G03G15/0877—Arrangements for metering and dispensing developer from a developer cartridge into the development unit
- G03G15/0881—Sealing of developer cartridges
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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
- G03G15/0806—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller
- G03G15/0817—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer on a donor element, e.g. belt, roller characterised by the lateral sealing at both sides of the donor member with respect to the developer carrying direction
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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
- G03G15/0896—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894
- G03G15/0898—Arrangements or disposition of the complete developer unit or parts thereof not provided for by groups G03G15/08 - G03G15/0894 for preventing toner scattering during operation, e.g. seals
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/18—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge, whereby the process cartridge comprises at least two image processing means in a single unit
- G03G21/1803—Arrangements or disposition of the complete process cartridge or parts thereof
- G03G21/1828—Prevention of damage or soiling, e.g. mechanical abrasion
Definitions
- the present invention relates to a process cartridge.
- the present invention is based on a Chinese utility model patent application filed on Nov. 08, 2011, with the application number of 201120439205.1, the content of which is incorporated herein by reference.
- Laser printers use the physical, chemical principles of light, electricity, and heat to output text or images.
- the basic process can be divided into seven steps: charging, exposure, development, transfer, fixing, cleaning, and power-saving.
- First, the surface of the photosensitive drum is uniformly charged by the charging roller.
- the laser scanner emits a modulated laser light containing image information to the photosensitive drum to form an electrostatic latent image corresponding to the image to be reproduced on the surface of the photosensitive drum.
- the toner from the developing roller is adsorbed on the surface of the photosensitive drum to convert the electrostatic latent image into a visible image.
- the negatively charged toner forming a visible image on the surface of the photosensitive drum is attracted, and the toner is formed.
- the image is transferred to a recording medium such as paper.
- the fixing assembly formed by the heating roller and the pressing roller is inserted, and the toner particles are melted into the fibers of the recording medium under the action of heat and pressure, so that the visible image formed by the carbon powder is completely solidified on the recording medium, that is, the basic is completed. Imaging action.
- the Chinese Patent Publication No. CN101382758B discloses a process cartridge including a developing roller having a circumferential surface roller body, the developing roller being rotatably supported on the casing; the sealing members are respectively disposed to face the roller body The circumferential surface is located at both ends of the axial direction and is in pressure contact with the roller body.
- Each of the sealing members includes a base material formed of an elastic member, and a sliding friction member formed of fibers and in contact with a circumferential surface of the roller body such that the roller body frictionally slides on the sliding friction members.
- the casing of the prior art processing cartridge has a pair of end walls, and the developing roller is rotatably supported between the end walls; the elongated elastic sealing member is disposed close to the circumferential surface of the end portion of the roller body of the developing roller, and is rotated at the roller body When the two are in sliding contact, the elastic sealing member is adhered to the casing; one end of the sealing blade is glued to the sponge strip by double-sided tape, and then the sponge strip is bonded to the casing in the axial direction, or directly on both sides The glue is bonded to the casing in the axial direction; the other end of the sealing blade is a free end, and the edge of the free end is in line contact with the surface of the roller body of the developing roller in the axial direction and is relatively slidable. Both ends of the roller body are respectively clamped to the both sides of the free end of the sealing blade with the head of the elastic sealing member.
- the sealing blade When the temperature of the environment in which the process cartridge is placed changes, the sealing blade is bonded to the casing by double-sided tape, and at the same time, it can compensate for the slight dimensional change caused by the inconsistent thermal expansion and contraction deformation of various parts.
- both sides of the free end 12 of the sealing blade completely cover the head 32 of the elastic sealing member 3, and the first width of the free end 12 of the sealing blade is axially clamped. 11 is equal to the second width 31 of the head 32 of the elastic sealing member overlapping the roller body of the developing roller 4 in the axial direction, that is, the head 32 of the elastic sealing member together with the developing roller 4 will seal both sides of the free end 12 of the blade Clamp separately.
- the middle portion of the free end is in cantilever contact with the roller body, and both sides of the free end thereof
- the two ends of the roller body are respectively clamped with the head of the elastic sealing member, so that both sides of the free end are supported by the sliding friction force from the roller body, and the intermediate portion of the free end is suspended from the sliding friction force from the roller body.
- There is sometimes an imbalance because the force of the developing roller on both ends of the sealing blade acts completely on both sides of the free end, and the middle portion of the free end can be compressed by the elastic deformation of the sealing blade itself or by the sponge or the double-sided tape.
- the sliding friction of the part is weakened, and it is obvious that the frictional force acting on both sides of the free end is greater than the frictional force acting on the middle portion of the free end.
- This imbalance of force easily causes the both ends of the sealing blade 1 to be coated by the developing roller. Pull-up, and bulging in the middle of the axial direction, causing toner leakage failure.
- An object of the present invention is to provide a process cartridge in which the end portion of the seal blade is not easily pulled off by the developing roller.
- the technical solution adopted by the process cartridge of the present invention is: a casing; a developing roller, the developing roller is rotatably supported in the casing; and a sealing blade, one end of the sealing blade is bonded to the casing, and the opposite end is a free end, the edge of the free end is in line contact with the roller body in the axial direction of the developing roller and is slidable relative to each other; an elastic sealing member which is disposed at both ends of the roller body of the developing roller and which is opposed to the circumferential surface of the roller body In sliding contact, the elastic sealing member is adhered to the casing, and both sides of the free end of the sealing blade are respectively clamped by the two ends of the roller body and the head of the elastic sealing member; the two sides of the free end of the sealing blade are axially clamped.
- the first width is respectively smaller than the second width of the head of the elastic sealing member in the axial direction.
- the first width is equal to one-half of the second width. This width value satisfies the sealing requirement, and the force of the developing roller acting on the portion where the sealing blade is clamped is closer to the force of the developing roller acting on the intermediate portion of the sealing blade, thereby preventing the ability of the intermediate ridge to be pulled up. Stronger.
- the elastic sealing member is a felt strip
- the felt has a good sealing property to the carbon powder
- the elasticity is moderate when the force of the developing roller is unloaded.
- the sealing blade is composed of a sheet-like PET plastic.
- the rigid material sealing blade makes itself stiff, and the free end of the sealing material is more tightly contacted with the developing roller, and is partially trapped in the elastic sealing member in the thickness direction to achieve the desired unloading effect.
- the process cartridge of the invention can effectively avoid the phenomenon that the two sides of the free end of the sealing blade are pulled off in the axial direction and cause the intermediate bulging, thereby eliminating the hidden trouble of generating powder leakage.
- FIG. 1 is a schematic structural view of a conventional process cartridge after removing a waste toner box and a developing roller;
- FIG. 2 is a schematic view showing the position of the two ends of the sealing blade in the conventional process cartridge overlapping with the elastic sealing member and in the axial direction of the developing roller;
- Figure 3 is a front elevational view of the process cartridge of the present invention.
- Figure 4 is a perspective view of the process cartridge of the present invention after removing the waste toner box assembly
- Figure 5 is a front elevational view of the process cartridge of the present invention with the waste toner box assembly removed;
- Figure 6 is a partial enlarged view of a portion B of Figure 5;
- Figure 7 is a cross-sectional view taken along line A-A of Figure 5;
- Figure 8 is a partial enlarged view of a portion C of Figure 7;
- Figure 9 is a partial enlarged view of a portion C of another embodiment of Figure 7;
- Figure 10 is a schematic view showing the structure of Figure 5 after the developing roller is removed;
- Figure 11 is a schematic view showing the position of the two ends of the sealing blade of the present invention overlapping the elastic sealing member and the axial direction of the developing roller, respectively.
- the casing 2 of the process cartridge has a pair of end walls 21.
- a powder discharging blade 5 and a sealing blade 1 are mounted in the casing, and the developing roller 4 is rotatably supported between the pair of end walls 21.
- the free end 12 of the sealing blade is in line contact with the surface of the roller body 41 of the developing roller 4 in the axial direction, and is relatively slidable.
- the elongated elastic sealing member 3 abuts against the circumferential surface of the end portion of the roller main body 41, and when the roller main body 41 rotates, the two are in sliding contact with each other, and the elastic sealing member 3 is adhered to the end wall 21 of the casing. .
- the sealing blade 1 is adhered to the sponge 6 by a double-sided tape 7, and is bonded to the casing 2, and the roller main body 41 and the head 32 of the elastic sealing member sandwich the free end 12 of the sealing blade.
- the sealing blade 1 can be fixed to the casing by the bonding method of the double-sided tape, and can compensate for the thermal expansion and contraction deformation of various parts. Inconsistent changes in trace size.
- FIG. 9 another way of bonding the sealing blade 1 to the casing 2 is as follows: the sealing blade 1 is directly adhered to the casing 2 by the double-sided tape 7, and the head 32 of the roller body 41 and the elastic sealing member are sealed. The side of the blade free end 12 is clamped.
- a pair of elastic sealing members 3 are respectively opposed to both sides of the free end 12 of the sealing blade 1.
- a pair of elastic sealing members 3 are disposed at both ends of the roller main body 41, and the first width 11 in which the side portions of the sealing blade free end 12 are sandwiched in the axial direction is smaller than the head 32 edge of the elastic sealing member 3.
- the second width 31 is twice the first width 11.
- the sealing blade 1 is made of a hard material such as flaky PET plastic, and the elastic sealing member 3 is a felt strip; after the developing roller 4 is mounted, it is in pressure contact with the sealing blade 1, and the sealing blade 1 is partially trapped in the thickness direction. In the sealing member 3, the sealing effect is achieved, and the force of the developing roller on both ends of the sealing blade 1 can be partially transferred to the elastic sealing member 3, thereby preventing the end portion of the sealing blade 1 from being pulled off by the developing roller.
- the middle bulge eliminates the hidden danger of powder leakage.
- the two sides of the free end of the sealing blade respectively cover a part of the elastic sealing member head in the axial direction, and the other part of the head of the elastic sealing member that is not covered continues with the roller body.
- the portion where the sealing blade is clamped is partially trapped in the elastic sealing member in the thickness direction, thereby achieving the sealing effect and the middle portion with the free end.
- the function of the cantilever type force mode is to unload the force of the developing roller to the both ends of the sealing blade to the portion of the head of the elastic sealing member which is not covered in the axial direction, so that the developing roller acts on the free end of the sealing blade.
- the forces on both sides are more balanced than the forces acting on the intermediate line contact portion.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
A processing cartridge includes: a cartridge body(2); a developing roller(4),rotatablely supported on the cartridge body;a sealing blade(1),one end of which is bonded to the cartridge body, the other end opposite to the end is a free end, and the edge of the free end is in linear contact with a roller body in the axial direction and can slide relatively;elastic sealing members(3),respectively placed at two ends of the roller body of the developing roller, wound around the circumferential surface of the roller body, and in slide contact with the roller body; the elastic sealing members are bonded to the cartridge body; two sides of the free end of the sealing blade are respectively clamped by two ends of the roller body and the head portions of the elastic sealing members; the first width of the two clamped sides of the free end of the sealing blade in the axial direction is smaller than the second width of the head portions of the elastic sealing members in the axial direction.
Description
本发明涉及一种处理盒。本发明基于申请日为2011年11月08日、申请号为201120439205.1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。
The present invention relates to a process cartridge. The present invention is based on a Chinese utility model patent application filed on Nov. 08, 2011, with the application number of 201120439205.1, the content of which is incorporated herein by reference.
激光打印机利用光、电、热的物理、化学原理输出文字或图像。基本过程可分为充电、曝光、显影、转印、定影、清洁、消电等七个步骤。首先,感光鼓表面由充电辊均匀地充电。激光扫描器向感光鼓发射含有图像信息的经过调制的激光,在感光鼓表面形成与待复制图像对应的静电潜像。接着,来自显影辊的碳粉转而吸附在感光鼓表面上使静电潜像转换成可视图像。随着感光鼓的旋转及经转印辊对纸张等记录介质背面施加的正电压作用,对在感光鼓表面形成了可视图像的带负电荷的碳粉产生吸引力,由碳粉形成的可视图像即被转印至纸张等记录介质上。随后进入加热辊和加压辊形成的定影组件,在热和压力的作用下碳粉粒子熔入记录介质的纤维中,于是碳粉形成的可视图像完全固化于记录介质上,即完成了基本的成像动作。Laser printers use the physical, chemical principles of light, electricity, and heat to output text or images. The basic process can be divided into seven steps: charging, exposure, development, transfer, fixing, cleaning, and power-saving. First, the surface of the photosensitive drum is uniformly charged by the charging roller. The laser scanner emits a modulated laser light containing image information to the photosensitive drum to form an electrostatic latent image corresponding to the image to be reproduced on the surface of the photosensitive drum. Then, the toner from the developing roller is adsorbed on the surface of the photosensitive drum to convert the electrostatic latent image into a visible image. With the rotation of the photosensitive drum and the positive voltage applied to the back surface of the recording medium such as paper by the transfer roller, the negatively charged toner forming a visible image on the surface of the photosensitive drum is attracted, and the toner is formed. The image is transferred to a recording medium such as paper. Then, the fixing assembly formed by the heating roller and the pressing roller is inserted, and the toner particles are melted into the fibers of the recording medium under the action of heat and pressure, so that the visible image formed by the carbon powder is completely solidified on the recording medium, that is, the basic is completed. Imaging action.
公开号为CN101382758B的中国专利文献公开了一种处理盒,处理盒包括具有圆周表面辊主体的显影辊,该显影辊以可旋转的方式支撑于盒体上;密封构件分别设置为面对辊主体的圆周表面且位于轴向的两端部,并与辊主体压接。每个密封构件包括由弹性元件所形成的基材;以及滑动摩擦构件,该滑动摩擦构件由纤维形成并与辊主体的圆周表面相接触,使得辊主体在滑动摩擦构件上摩擦滑动。The Chinese Patent Publication No. CN101382758B discloses a process cartridge including a developing roller having a circumferential surface roller body, the developing roller being rotatably supported on the casing; the sealing members are respectively disposed to face the roller body The circumferential surface is located at both ends of the axial direction and is in pressure contact with the roller body. Each of the sealing members includes a base material formed of an elastic member, and a sliding friction member formed of fibers and in contact with a circumferential surface of the roller body such that the roller body frictionally slides on the sliding friction members.
现有处理盒的盒体具有一对端壁,显影辊可旋转地支承于端壁间;长条状的弹性密封构件紧贴显影辊的辊主体端部的圆周表面设置,且在辊主体转动时两者相对滑动接触,弹性密封构件粘接于盒体上;密封刮片的一端用双面胶粘在海绵条上,然后海绵条沿轴向粘接于盒体上,或者直接用双面胶沿轴向粘接于盒体上;密封刮片另一端为自由端,该自由端的边缘沿轴向与显影辊的辊主体表面线接触并可相对滑动。辊主体地两端分别与弹性密封构件的头部将密封刮片自由端的两侧夹持。The casing of the prior art processing cartridge has a pair of end walls, and the developing roller is rotatably supported between the end walls; the elongated elastic sealing member is disposed close to the circumferential surface of the end portion of the roller body of the developing roller, and is rotated at the roller body When the two are in sliding contact, the elastic sealing member is adhered to the casing; one end of the sealing blade is glued to the sponge strip by double-sided tape, and then the sponge strip is bonded to the casing in the axial direction, or directly on both sides The glue is bonded to the casing in the axial direction; the other end of the sealing blade is a free end, and the edge of the free end is in line contact with the surface of the roller body of the developing roller in the axial direction and is relatively slidable. Both ends of the roller body are respectively clamped to the both sides of the free end of the sealing blade with the head of the elastic sealing member.
当处理盒所处环境的温度变化时,密封刮片用双面胶粘接固定在盒体上的同时,也能补偿各种零件热胀冷缩变形不一致所产生的微量尺寸变化。When the temperature of the environment in which the process cartridge is placed changes, the sealing blade is bonded to the casing by double-sided tape, and at the same time, it can compensate for the slight dimensional change caused by the inconsistent thermal expansion and contraction deformation of various parts.
参见图1
,密封刮片1的一端沿轴向通过双面胶7粘接在处理盒的盒体2上,其自由端12的两侧分别与弹性密封构件3的头部32重合。See Figure 1
One end of the sealing blade 1 is bonded to the casing 2 of the process cartridge in the axial direction by the double-sided tape 7, and both sides of the free end 12 are respectively overlapped with the head 32 of the elastic sealing member 3.
参见图2,密封刮片的自由端12的两侧部完全重合地盖在弹性密封构件3的头部32上,密封刮片的自由端12的两侧沿轴向被夹持的第一宽度11等于弹性密封构件的头部32沿轴向与显影辊4的辊主体重叠的第二宽度31,即弹性密封构件的头部32与显影辊4一起将密封刮片的自由端12的两侧分别夹持。Referring to Fig. 2, both sides of the free end 12 of the sealing blade completely cover the head 32 of the elastic sealing member 3, and the first width of the free end 12 of the sealing blade is axially clamped. 11 is equal to the second width 31 of the head 32 of the elastic sealing member overlapping the roller body of the developing roller 4 in the axial direction, that is, the head 32 of the elastic sealing member together with the developing roller 4 will seal both sides of the free end 12 of the blade Clamp separately.
由于密封刮片的一端不管是通过海绵粘接于盒体上还是用双面胶直接粘接于盒体上,其自由端的中间部分均是呈悬臂式地与辊主体接触,其自由端的两侧分别被辊主体的两端与弹性密封构件的头部夹持,使得自由端的两侧支承式地承受来自辊主体的滑动摩擦力,与自由端中间部分悬空地承受来自辊主体的滑动摩擦力相比有时会出现不均衡,因为显影辊对密封刮片两端的作用力完全作用在自由端的两侧,而自由端中间部分可以由密封刮片自身的弹性变形或海绵或双面胶的被压缩,使部分的滑动摩擦力被减弱,显然作用在自由端的两侧的摩擦力大于作用在自由端中间部分的摩擦力,这种力的不均衡,很容易导致密封刮片1两端部被显影辊拉脱,以及轴向的中部出现隆起,造成碳粉泄漏故障。
Since one end of the sealing blade is bonded to the casing by a sponge or directly bonded to the casing by a double-sided tape, the middle portion of the free end is in cantilever contact with the roller body, and both sides of the free end thereof The two ends of the roller body are respectively clamped with the head of the elastic sealing member, so that both sides of the free end are supported by the sliding friction force from the roller body, and the intermediate portion of the free end is suspended from the sliding friction force from the roller body. There is sometimes an imbalance, because the force of the developing roller on both ends of the sealing blade acts completely on both sides of the free end, and the middle portion of the free end can be compressed by the elastic deformation of the sealing blade itself or by the sponge or the double-sided tape. The sliding friction of the part is weakened, and it is obvious that the frictional force acting on both sides of the free end is greater than the frictional force acting on the middle portion of the free end. This imbalance of force easily causes the both ends of the sealing blade 1 to be coated by the developing roller. Pull-up, and bulging in the middle of the axial direction, causing toner leakage failure.
本发明的目的是提供一种密封刮片端部不易被显影辊拉脱的处理盒。SUMMARY OF THE INVENTION An object of the present invention is to provide a process cartridge in which the end portion of the seal blade is not easily pulled off by the developing roller.
本发明的处理盒所采用的技术方案是:盒体;显影辊,该显影辊可旋转地支承于盒体内;密封刮片,该密封刮片的一端粘接于盒体,相对的另一端是自由端,该自由端的边缘沿显影辊的轴向与辊主体线接触并可相对滑动;弹性密封构件,该弹性密封构件分置于显影辊的辊主体两端并绕辊主体的圆周表面与其相对滑动接触,弹性密封构件粘接于盒体,密封刮片自由端的两侧分别被辊主体的两端与弹性密封构件的头部夹住;密封刮片自由端的两侧沿轴向被夹住的第一宽度分别小于弹性密封构件的头部沿轴向的第二宽度。The technical solution adopted by the process cartridge of the present invention is: a casing; a developing roller, the developing roller is rotatably supported in the casing; and a sealing blade, one end of the sealing blade is bonded to the casing, and the opposite end is a free end, the edge of the free end is in line contact with the roller body in the axial direction of the developing roller and is slidable relative to each other; an elastic sealing member which is disposed at both ends of the roller body of the developing roller and which is opposed to the circumferential surface of the roller body In sliding contact, the elastic sealing member is adhered to the casing, and both sides of the free end of the sealing blade are respectively clamped by the two ends of the roller body and the head of the elastic sealing member; the two sides of the free end of the sealing blade are axially clamped. The first width is respectively smaller than the second width of the head of the elastic sealing member in the axial direction.
作为对上述技术方案的一个优选技术方案,第一宽度等于所述第二宽度的二分之一。这个宽度值在满足密封要求的同时,使显影辊作用于密封刮片被夹住部分的力,与显影辊作用于密封刮片中间部分的力量大小更接近,从而防拉脱造成中间隆起的能力更强。As a preferred technical solution to the above technical solution, the first width is equal to one-half of the second width. This width value satisfies the sealing requirement, and the force of the developing roller acting on the portion where the sealing blade is clamped is closer to the force of the developing roller acting on the intermediate portion of the sealing blade, thereby preventing the ability of the intermediate ridge to be pulled up. Stronger.
作为上述技术方案的具体方案,弹性密封构件是毛毡条,毛毡对碳粉的密封性较好,而且卸载显影辊的作用力时弹性适中。As a specific embodiment of the above technical solution, the elastic sealing member is a felt strip, the felt has a good sealing property to the carbon powder, and the elasticity is moderate when the force of the developing roller is unloaded.
作为上述技术方案的优选方案,密封刮片由薄片状PET塑料构成。这种硬性材质的密封刮片使自身挺括,粘接固定后其自由端与显影辊的线接触更紧密,而且在厚度方向上部分陷进弹性密封构件里更容易达到预期的卸载效果,以达到本发明的目的。As a preferred embodiment of the above technical solution, the sealing blade is composed of a sheet-like PET plastic. The rigid material sealing blade makes itself stiff, and the free end of the sealing material is more tightly contacted with the developing roller, and is partially trapped in the elastic sealing member in the thickness direction to achieve the desired unloading effect. The object of the invention.
本发明的处理盒能有效避免密封刮片自由端的两侧被沿轴向拉脱及造成中间隆起的现象,消除了产生漏粉的隐患。
The process cartridge of the invention can effectively avoid the phenomenon that the two sides of the free end of the sealing blade are pulled off in the axial direction and cause the intermediate bulging, thereby eliminating the hidden trouble of generating powder leakage.
图1是现有处理盒拆除废粉仓及显影辊后的结构示意图;1 is a schematic structural view of a conventional process cartridge after removing a waste toner box and a developing roller;
图2是现有处理盒中密封刮片的两端分别与弹性密封构件搭接并与显影辊的轴向相对位置示意图;2 is a schematic view showing the position of the two ends of the sealing blade in the conventional process cartridge overlapping with the elastic sealing member and in the axial direction of the developing roller;
图3是本发明的处理盒的主视图;Figure 3 is a front elevational view of the process cartridge of the present invention;
图4是本发明的处理盒拆除废粉仓组件后的立体图;Figure 4 is a perspective view of the process cartridge of the present invention after removing the waste toner box assembly;
图5是本发明的处理盒拆除废粉仓组件后的主视图;Figure 5 is a front elevational view of the process cartridge of the present invention with the waste toner box assembly removed;
图6是图5 的B部局部放大图;Figure 6 is a partial enlarged view of a portion B of Figure 5;
图7是图5的A-A剖视图;Figure 7 is a cross-sectional view taken along line A-A of Figure 5;
图8是图7的C部局部放大图;Figure 8 is a partial enlarged view of a portion C of Figure 7;
图9是图7的另一种实施方式的C部局部放大图;Figure 9 is a partial enlarged view of a portion C of another embodiment of Figure 7;
图10是图5拆除显影辊后的结构示意图;Figure 10 is a schematic view showing the structure of Figure 5 after the developing roller is removed;
图11是本发明的密封刮片的两端分别与弹性密封构件搭接并与显影辊的轴向相对位置示意图。Figure 11 is a schematic view showing the position of the two ends of the sealing blade of the present invention overlapping the elastic sealing member and the axial direction of the developing roller, respectively.
下面结合附图和实施例对本发明进一步说明。The invention will now be further described with reference to the drawings and embodiments.
参见图3,处理盒的盒体2具有一对端壁21。Referring to Fig. 3, the casing 2 of the process cartridge has a pair of end walls 21.
参见图4,盒体内装有出粉刀5及密封刮片1,显影辊4可旋转地支承于一对端壁21之间。Referring to Fig. 4, a powder discharging blade 5 and a sealing blade 1 are mounted in the casing, and the developing roller 4 is rotatably supported between the pair of end walls 21.
参见图5,密封刮片的自由端12沿轴向与显影辊4的辊主体41表面线接触,并可相对滑动。Referring to Fig. 5, the free end 12 of the sealing blade is in line contact with the surface of the roller body 41 of the developing roller 4 in the axial direction, and is relatively slidable.
参见图6,辊主体41的端部与弹性密封构件的头部32将密封刮片的自由端12的端部夹持。Referring to Fig. 6, the end of the roller body 41 and the head 32 of the elastic sealing member sandwich the end of the free end 12 of the sealing blade.
参见图7,长条状的弹性密封构件3紧贴辊主体41端部的圆周表面,且在辊主体41转动时两者相对滑动接触,弹性密封构件3粘接于盒体的端壁21上。Referring to Fig. 7, the elongated elastic sealing member 3 abuts against the circumferential surface of the end portion of the roller main body 41, and when the roller main body 41 rotates, the two are in sliding contact with each other, and the elastic sealing member 3 is adhered to the end wall 21 of the casing. .
参见图8,密封刮片1用双面胶7粘在海绵6上再粘接于盒体2上,辊主体41与弹性密封构件的头部32将密封刮片的自由端12夹持。当处理盒所处环境的温度变化时,密封刮片1用双面胶的这种粘接方式使密封刮片1能固定在盒体上的同时,也能补偿各种零件热胀冷缩变形不一致所产生的微量尺寸变化。Referring to Fig. 8, the sealing blade 1 is adhered to the sponge 6 by a double-sided tape 7, and is bonded to the casing 2, and the roller main body 41 and the head 32 of the elastic sealing member sandwich the free end 12 of the sealing blade. When the temperature of the environment in which the process cartridge is placed changes, the sealing blade 1 can be fixed to the casing by the bonding method of the double-sided tape, and can compensate for the thermal expansion and contraction deformation of various parts. Inconsistent changes in trace size.
参见图9,密封刮片1与盒体2的另一种粘接方式:密封刮片1通过双面胶7直接粘在盒体2上,辊主体41与弹性密封构件的头部32将密封刮片自由端12的侧部夹持。Referring to Fig. 9, another way of bonding the sealing blade 1 to the casing 2 is as follows: the sealing blade 1 is directly adhered to the casing 2 by the double-sided tape 7, and the head 32 of the roller body 41 and the elastic sealing member are sealed. The side of the blade free end 12 is clamped.
参见图10,一对弹性密封构件3分别与密封刮片1的自由端12的两侧相对。Referring to Fig. 10, a pair of elastic sealing members 3 are respectively opposed to both sides of the free end 12 of the sealing blade 1.
参见图11,一对弹性密封构件3分置于辊主体41的两端,密封刮片自由端12的侧部沿轴向被夹住的第一宽度11小于弹性密封构件3的头部32沿轴向的第二宽度31。第二宽度31是第一宽度11的两倍。Referring to Fig. 11, a pair of elastic sealing members 3 are disposed at both ends of the roller main body 41, and the first width 11 in which the side portions of the sealing blade free end 12 are sandwiched in the axial direction is smaller than the head 32 edge of the elastic sealing member 3. The second width 31 of the axial direction. The second width 31 is twice the first width 11.
密封刮片1由薄片状PET塑料等硬质材料构成,弹性密封构件3是毛毡条;显影辊4安装后,与密封刮片1抵压接触,密封刮片1在厚度方向上部分陷进弹性密封构件3里,既达到密封的效果,又可以将显影辊对密封刮片1两端的作用力部分地转移到弹性密封构件3上,从而避免了密封刮片1端部被显影辊拉脱造成中间隆起,消除了产生漏粉的隐患。The sealing blade 1 is made of a hard material such as flaky PET plastic, and the elastic sealing member 3 is a felt strip; after the developing roller 4 is mounted, it is in pressure contact with the sealing blade 1, and the sealing blade 1 is partially trapped in the thickness direction. In the sealing member 3, the sealing effect is achieved, and the force of the developing roller on both ends of the sealing blade 1 can be partially transferred to the elastic sealing member 3, thereby preventing the end portion of the sealing blade 1 from being pulled off by the developing roller. The middle bulge eliminates the hidden danger of powder leakage.
本发明的处理盒的上述技术方案中,密封刮片自由端的两侧分别将弹性密封构件头部沿轴向的其中一部分遮住,弹性密封构件头部没有被遮住的另一部分继续与辊主体滑动接触,由于显影辊对密封刮片按压接触时,密封刮片被夹住的部分受压沿厚度方向部分陷进弹性密封构件里,既达到密封的效果,又起到与自由端中间部分的悬臂式受力模式看齐的功效,将显影辊对密封刮片两端的作用力部分卸载到弹性密封构件头部沿轴向其中没有被遮住的部分上,使显影辊作用于密封刮片自由端的两侧的力与作用于中间线接触部分的力相比更均衡。
In the above technical solution of the process cartridge of the present invention, the two sides of the free end of the sealing blade respectively cover a part of the elastic sealing member head in the axial direction, and the other part of the head of the elastic sealing member that is not covered continues with the roller body. In the sliding contact, when the developing roller is pressed against the sealing blade, the portion where the sealing blade is clamped is partially trapped in the elastic sealing member in the thickness direction, thereby achieving the sealing effect and the middle portion with the free end. The function of the cantilever type force mode is to unload the force of the developing roller to the both ends of the sealing blade to the portion of the head of the elastic sealing member which is not covered in the axial direction, so that the developing roller acts on the free end of the sealing blade. The forces on both sides are more balanced than the forces acting on the intermediate line contact portion.
Claims (4)
- 处理盒,包括 Processing box, including盒体;Box显影辊,所述显影辊可旋转地支承于所述盒体内;a developing roller rotatably supported in the casing;密封刮片,所述密封刮片的一端沿所述显影辊的轴向粘接于所述盒体,与所述一端相对的另一端是自由端,该自由端的边缘沿轴向与所述显影辊的主体之间线接触并可相对滑动;a sealing blade, one end of the sealing blade is bonded to the casing along an axial direction of the developing roller, and the other end opposite to the one end is a free end, and an edge of the free end is axially and developed Line contact between the main bodies of the roller and relative to sliding;弹性密封构件,所述弹性密封构件分置于所述显影辊的主体两端并与所述主体的圆周表面之间相对滑动接触,所述弹性密封构件粘接于所述盒体,所述密封刮片的自由端的两侧分别被所述主体的两端与所述弹性密封构件的头部夹持;An elastic sealing member which is disposed at both ends of the main body of the developing roller and is in sliding contact with a circumferential surface of the main body, the elastic sealing member being bonded to the casing, the sealing Two sides of the free end of the blade are respectively clamped by the two ends of the body with the head of the elastic sealing member;其特征在于:It is characterized by:所述密封刮片的自由端的两侧沿轴向被夹持的第一宽度小于所述弹性密封构件的头部沿轴向的第二宽度。A first width of the free end of the sealing blade sandwiched in the axial direction is smaller than a second width of the head of the elastic sealing member in the axial direction.
- 根据权利要求1所述的处理盒,其特征在于:所述第一宽度等于所述第二宽度的二分之一。 The process cartridge according to claim 1, wherein said first width is equal to one-half of said second width.
- 根据权利要求1或2所述的处理盒,其特征在于:所述弹性密封构件是毛毡条。A process cartridge according to Claim 1 or 2, wherein said elastic sealing member is a felt strip.
- 根据权利要求1或2所述的处理盒,其特征在于:所述密封刮片由薄片状PET塑料构成。 The process cartridge according to claim 1 or 2, wherein the sealing blade is composed of a sheet-like PET plastic.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN 201120439205 CN202306147U (en) | 2011-11-08 | 2011-11-08 | Processing box |
CN201120439205.1 | 2011-11-08 |
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WO2013067891A1 true WO2013067891A1 (en) | 2013-05-16 |
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PCT/CN2012/083741 WO2013067891A1 (en) | 2011-11-08 | 2012-10-30 | Processing cartridge |
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WO2016103429A1 (en) * | 2014-12-25 | 2016-06-30 | キヤノン株式会社 | Cartridge, unit, and method for manufacturing same |
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CN202306147U (en) * | 2011-11-08 | 2012-07-04 | 珠海天威飞马打印耗材有限公司 | Processing box |
JP6127881B2 (en) * | 2013-09-30 | 2017-05-17 | ブラザー工業株式会社 | Development device |
CN103529681B (en) * | 2013-10-30 | 2016-08-17 | 珠海天威飞马打印耗材有限公司 | Handle box |
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CN201000536Y (en) * | 2007-01-09 | 2008-01-02 | 珠海天威技术开发有限公司 | Developer box |
CN101382758A (en) * | 2007-09-04 | 2009-03-11 | 兄弟工业株式会社 | Developing device and image forming device |
CN202306147U (en) * | 2011-11-08 | 2012-07-04 | 珠海天威飞马打印耗材有限公司 | Processing box |
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2011
- 2011-11-08 CN CN 201120439205 patent/CN202306147U/en not_active Expired - Fee Related
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JPH06337583A (en) * | 1993-05-31 | 1994-12-06 | Canon Inc | Image forming device |
JP2001013777A (en) * | 1999-07-01 | 2001-01-19 | Canon Inc | Developer carrier, developing device, process cartridge and image forming device |
CN201000536Y (en) * | 2007-01-09 | 2008-01-02 | 珠海天威技术开发有限公司 | Developer box |
CN101382758A (en) * | 2007-09-04 | 2009-03-11 | 兄弟工业株式会社 | Developing device and image forming device |
CN202306147U (en) * | 2011-11-08 | 2012-07-04 | 珠海天威飞马打印耗材有限公司 | Processing box |
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WO2016103429A1 (en) * | 2014-12-25 | 2016-06-30 | キヤノン株式会社 | Cartridge, unit, and method for manufacturing same |
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