CN105676607A - Developing box - Google Patents
Developing box Download PDFInfo
- Publication number
- CN105676607A CN105676607A CN201610200592.0A CN201610200592A CN105676607A CN 105676607 A CN105676607 A CN 105676607A CN 201610200592 A CN201610200592 A CN 201610200592A CN 105676607 A CN105676607 A CN 105676607A
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- China
- Prior art keywords
- rotation axis
- revolving force
- development
- receiving element
- transmission gear
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- G03G15/0806—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
- G03G15/0813—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 means in the developing zone having an interaction with the image carrying member, e.g. distance holders
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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
- G03G21/1661—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus
- G03G21/1676—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements means for handling parts of the apparatus in the apparatus for the developer unit
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrophotography Configuration And Component (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
The invention relates to a developing box, and belongs to the technical field of electrophotographic imaging and printing. The developing box comprises a box body, a developing unit and a driving switching unit, wherein the driving switching unit comprises a resetting piece, a connection control piece, a developing rotating force receiving piece and a transmission gear for transmitting rotating force to a developing roller. By switching of the matching between all components of the driving switching unit and a developing end cover as well as a driving end cover, the developing rotating force receiving piece is connected with a driving output component of a developing device on a host unit in the developing period and disconnected from the driving output component in the non-developing period, so that a function of switching driving of the developing roller is realized. The driving switching unit in the developing box is simple in structure and convenient for manufacturing and assembling, so that the manufacturing cost of the developing box can be reduced.
Description
Technical field
The present invention relates to a kind of Delevoping cartridge being removably mounted on electrophotographic image forming.
Background technology
Electrophotographic image forming is a kind of to utilize electrofax principle that image is formed at the equipment on print media such as paper, including photocopier, printer, facsimile machine, all-in-one etc., generally includes main frame and is removably installed in the Delevoping cartridge in this main frame; Wherein, Delevoping cartridge at least has offer developing agent to photosensitive drums with the developer roll of developing electrostatic latent image, is generally also provided with the photosensitive drums for forming developing electrostatic image.
Publication number is a kind of electrophotographic image forming and be removably mounted on the Delevoping cartridge on this electrophotographic image forming disclosed in the patent documentation of CN104541212A.
As shown in its Figure of description 41, the main frame of this electrophotographic image forming has drum and drives output link 61 and developing unit to drive output link 62, and the motor that drives from main frame is received revolving force and exports to the bulging revolving force receiving element 4a being located on Delevoping cartridge as shown in figure 43 and development revolving force receiving element 474 by the two; As shown in its Figure of description 7, this main frame also has main frame and promotes component 80, for applying to make it rotate around rotation axis X relative to drum unit 8 along the thrust in F1 direction to developing cell 9.
As shown in its Figure of description 43 to 53, this Delevoping cartridge is provided with the driving switching device for the driving of developer roll 6 is switched over, during development operation, for driving output link 62 receive revolving force and developer roll is rotated driving from developing unit, and cut off the driving to developer roll during non-development, and then developer roll is made to stop continuing photosensitive drums for powder during non-development. Driving switching device to include development revolving force receiving element 474, connection control piece 272, transmission gear 71 and spring 70 to constitute, the end of development revolving force receiving element 474 is provided with revolving force acceptance division 474b.
As shown in Figure 53, during non-development, couple control piece 272 to rotate around rotation axis X relative to drive end end cap 424 with development end cap 432, by coordinating of directed section 271i and guide portion 424b, connection control piece 272 is promoted to move along the direction being parallel to rotation axis X towards the direction away from drive end end cap 424, and then promote transmission gear 71 to move towards the direction away from revolving force receiving element 474, couple thus realizing this for the disengaging between output arm 474a and the input arm 71n of coupling connection, to reach to cut off developing drive.
Disengaging in order to realize output arm 474a and input arm 71n couples, require that the transmission relative developing roller gear 69 of gear 71 slides along the direction being parallel to rotation axis X, cause that the two can only be designed as spur gear, it is easily caused the rotary speed passing to developer roll uneven, is unfavorable for the raising of development quality; And in order to any moment all can relative sliding, machining accuracy and installation requirement is higher; Disengaging in order to realize output arm 474a and input arm 71n can realize again after coupling coupling, and the accuracy of manufacture of the two is required height, causes that the manufacturing cost of whole Delevoping cartridge increases.
Summary of the invention
It is an object of the invention to provide a kind of Delevoping cartridge with developing drive handoff functionality.
To achieve these goals, Delevoping cartridge provided by the invention includes box body, developing cell and drives switch unit. Developing cell includes developing cell framework and can be rotated to support on the developer roll on this developing cell framework. Developing cell can be bearing on box body around rotation axis reciprocating rotation, and this rotation axis is the rotation axis of transmission gear also for the rotation axis of development revolving force receiving element. In box body with developing cell framework, one is provided with limiting section, and another one is provided with guide portion. Drive switch unit include return unit, couple control piece, development revolving force receiving element and for developer roll transmit revolving force transmission gear; Couple control piece and include limited portion, directed section and force section, and its relative developing cell framework can move back and forth along the direction being parallel to above-mentioned rotation axis; Development revolving force receiving element reciprocatingly can couple with transmission gear coupling along being parallel to the direction of above-mentioned rotation axis, namely during development operation with non-development operation during, both is in coupling coupled situation. With developing cell relative to box body around above-mentioned rotation axis reciprocating rotation between coupled position and disengaging configuration, by coordinating of limited portion and limiting section and coordinating of directed section and guide portion, couple force section and return unit the making a concerted effort to development revolving force receiving element of control piece, driving development revolving force receiving element to move back and forth along the direction being parallel to rotation axis, what namely realize driving output link during development operation with developing unit on main frame couple connection and the connection of the disengaging during non-development.
From above scheme, move along the direction being parallel to rotation axis X owing to passing through connection control piece control development revolving force receiving element, thus driving output link to couple with developing unit on main frame during development operation couple and transmit the revolving force that development is required, and drive output link disengaging to couple with developing unit during non-development, to realize the handoff functionality of developing drive; And in whole process, development revolving force receiving element is in, with transmission gear, the state of being of coupled connections all the time, it is possible not only to be set as helical gear and improve development quality by transmission gear, and is easy to be located at and couples therebetween coupling mechanism, to reduce the manufacturing cost of Delevoping cartridge.
One concrete scheme includes guide rod for development revolving force receiving element, output arm, is positioned at the revolving force acceptance division of the axial one end of this guide rod, and couples the forced section of force section applying power on control piece for receiving. Transmission gear is provided with the first accommodation chamber of axially open at one end, this the first accommodation intracavity is provided with input arm, the axial other end of transmission gear is provided with and holds the pilot hole that connect of chamber with first, another axial end of guide rod through first hold chamber and with pilot hole matched in clearance. Output arm in the position at input arm place with input arm abutting contact. Simple in construction, it is simple to manufacture and assemble.
Scheme is that revolving force receiving element radially extends along transmission gear or extends to form above-mentioned output arm along being parallel to rotation axis towards the first direction holding bottom surface, chamber more specifically;First holds chamber is parallel to the inwall of rotation axis and radially extends along transmission gear or first hold the bottom surface in chamber and extend to form above-mentioned input arm along being parallel to above-mentioned rotation axis towards the first direction holding chamber uncovered. Between development revolving force receiving element with transmission gear to couple draw bail simply effective, and be easy to manufacture.
Another concrete scheme be guide portion include relative to above-mentioned rotation axis along first transmit gear rotates the guide surface that is in tilted layout of circumference and/or directed section includes relative to above-mentioned rotation axis along rotating circumferential directed be in tilted layout. At least one between guide surface and directed is set, and rotates against axis and be in tilted layout along rotating circumference, be effectively improved movement relative rotary motion be converted to along being parallel to rotation axis X-direction.
Scheme is the body of development revolving force receiving element more specifically is circular bosses structure, and the path end face of this circular bosses structure extends to form revolving force acceptance division along the direction being parallel to rotation axis. The body coupling control piece is ring body structurc, and the outer peripheral face of this ring body structurc radially convexes to form above-mentioned directed section and limited portion. Ring body structurc is placed on the minor diameter part of circular bosses structure exceptionally and with it matched in clearance. The shoulder face of circular bosses structure constitutes forced section, and the end face that ring body structurc and shoulder face lean constitutes force section, simple in construction, and is easy to manufacture.
One scheme concrete again be the bigger diameter end face of circular bosses structure extend to form along the direction being parallel to rotation axis guide rod and with guide rod coaxial arrangement be located at the ring body outside this guide rod, this ring body is provided with more than one edge and is parallel to the first breach that rotation axis direction is arranged. What transmission gear was provided with axially open at one end first holds chamber, is provided with and holds the pilot hole that connect of chamber with first on the axial other end of transmission gear, guide rod away from revolving force acceptance division one end through first hold chamber and with pilot hole matched in clearance. The bottom surface of transmission gear extends to form, along the direction being parallel to rotation axis, the projection matched with the first breach; Return unit is spring, and spring is placed on outside guide rod and matched in clearance with it, and one end of spring is resisted against on bigger diameter end face, and the other end is resisted against on the bottom surface in the first accommodation chamber.
Another scheme concrete again is that developing cell framework includes development end cap, development end cap convexes to form along the direction being parallel to rotation axis and columned rotationally supports seat, this rotationally supports seat and is provided with the second accommodation chamber of axially open at one end, second holds chamber is used for holding driving switch unit, the axial other end rotationally supporting seat is provided with the through hole for exposing revolving force acceptance division, and the second sidewall holding chamber is provided with the second breach. Box body includes drive end end cap, and the head face hump of this drive end end cap contiguous development end cap forms above-mentioned limiting section, the free end in above-mentioned limited portion through the second breach and with limiting section abutting contact.
The reset force that another concrete scheme is return unit forces development revolving force receiving element away from transmission gear. During development operation, development revolving force receiving element can move along X-axis line direction, it is simple to developing unit drives to set up between output link with development revolving force receiving element and couples connection.
Scheme is that return unit includes homopolarity the first magnet positioned opposite and the second magnet more specifically, and the first magnet is fixed on development revolving force receiving element, and the second magnet is fixed on transmission gear. It is easy to the design of return unit structure and the layout of fixed position, and development revolving force receiving element and transmission gear can simplify assembling procedure by being embedded in by magnet.
Preferred scheme is that Delevoping cartridge also includes drum unit.Drum unit includes drum unit framework, drum revolving force receiving element and can be rotated to support on the photosensitive drums on drum unit framework. Drum unit framework is fixing with box body to be connected.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of first embodiment of the invention;
Fig. 2 is the STRUCTURE DECOMPOSITION figure of first embodiment of the invention;
Fig. 3 is axonometric chart different with Fig. 1 visual angle after first embodiment of the invention omits photosensitive drums protective cover;
Fig. 4 is the axonometric chart of end cap of developing in first embodiment of the invention;
Fig. 5 is the STRUCTURE DECOMPOSITION figure coupling control piece and development revolving force receiving element in first embodiment of the invention;
Fig. 6 is return unit and the STRUCTURE DECOMPOSITION figure transmitting gear in first embodiment of the invention;
Fig. 7 is the STRUCTURE DECOMPOSITION figure coupling control piece and development end cap in first embodiment of the invention;
Fig. 8 is the STRUCTURE DECOMPOSITION figure of the drive end end cap in first embodiment of the invention, development end cap, development revolving force receiving element, return unit and transmission gear;
Fig. 9 is developer roll in first embodiment of the invention, photosensitive drums, transmission gear and couples control piece in developing cell relative drive end end cap relative motion state in rotation axis X rotary course;
Figure 10 couples control piece and the end cap relative position relation figure when the revolving force receiving element that develops is in coupled situation that develops in first embodiment of the invention;
Figure 11 couples control piece to be in relative position relation figure when departing from coupled situation with development end cap at the revolving force receiving element that develops in first embodiment of the invention;
Figure 12 is the STRUCTURE DECOMPOSITION figure of development revolving force receiving element in second embodiment of the invention, return unit and transmission gear;
Figure 13 is the STRUCTURE DECOMPOSITION figure of development revolving force receiving element in third embodiment of the invention, return unit and transmission gear;
Figure 14 couples control piece in fourth embodiment of the invention and is located at the STRUCTURE DECOMPOSITION figure of force section on development end cap.
Below in conjunction with embodiment and accompanying drawing thereof, the invention will be further described.
Detailed description of the invention
Developer roll in Delevoping cartridge is mainly driven switching device to improve by the present invention, and other structures of Delevoping cartridge can be designed according to existing product completely.
First embodiment
Referring to Fig. 1, Delevoping cartridge is by drive end end cap 11, conducting end end cap 12, photosensitive drums protective cover 13, torque spring, drum revolving force receiving element 3, drum unit 4, developing cell 5 and has the driving switch unit of development revolving force receiving element 2 and constitutes. Drive end end cap 11 and conducting end end cap 12 constitute the box body of the present embodiment, and development revolving force receiving element 2 can rotate around rotation axis X.
Referring to Fig. 2 and Fig. 3, drive end end cap 11 is provided with support shaft holes 111 and axis hole 112, is formed with the interior shaft shoulder 1120 in support shaft holes 111. Conducting end end cap 12 is provided with support column 121 and pin hole 122.
Photosensitive drums protective cover 13 by buckle 130 be located on upper drive end end cap 11 and conducting end end cap 12 fastening of draw-in groove; and be removably fastened on box body; photosensitive drums 41 exposed surface to be protected in storage with the process of transport Delevoping cartridge, needed from box body, take off photosensitive drums protective cover 13 before loading main frame.
Drum unit 4 has drum unit framework 40 and the photosensitive drums 41 that can be rotated to support on drum unit framework 40 and charging roller 42. One end of photosensitive drums 41 drum barrel is socketed on an axial end of bulging revolving force receiving element 3, so that the revolving force that drum revolving force receiving element 3 receives from main frame is directly passed to photosensitive drums 41.
Developing cell 5 has developing cell framework 50 and the developer roll 54 that can be rotated to support on developing cell framework 50. Developing cell framework 50 has the development end cap 51 being positioned on its longitudinal end, and the other end is provided with the support shaft holes 52 matched with support column 121. Development end cap 51 is provided with and rotationally supports seat 511, and the part of development revolving force receiving element 2 is stretched out from the through hole 512 being located at the axial end rotationally supporting seat 511 and rotationally supported seat 511 and expose, and rotationally supports and is formed with the shaft shoulder 513 on the free end of seat 511.
Drive end end cap 11 is fixed on two longitudinal ends of drum unit framework 40 respectively through pin with conducting end end cap 12, and the free end of drum revolving force receiving element 3 exposes through axis hole 112; One pin (not shown) stretches in photosensitive drums 41 through pin hole 122, and the rotation of photosensitive drums 41 is supported.
Support column 121 stretches in axis hole 52, rotationally support seat 511 to stretch in support shaft holes 111 and matched in clearance with it, and the shaft shoulder 513 is resisted against on the interior shaft shoulder 1120, by the support column 121 supporting to axis hole 52 and the support shaft holes 111 supporting to rotationally supporting seat 511, make developing cell 5 can be bearing in drive end end cap 11 around rotation axis X reciprocating rotation and on conducting end end cap 12, can be bearing on box body reciprocating rotation.
Developing cell framework 50 is connected with promoting the thrust acceptance division 53 of component thrust for Receiving Host near development end cap 51, so that developing cell 5 overcomes torque spring 14 to be applied to the torque on developing cell 5 and rotate around rotation axis X, when main frame promotes component to be reset to initial position, developing cell 5 under the effect in torque spring 14 elastic restoring force being located between developing cell 5 and drum unit 4, will promote developing cell 5 to rotate in opposite direction around rotation axis X.
Referring to Fig. 4, rotationally supporting seat 511 is the cylindrical-shaped structure being located on development end cap 51, which is provided with cylindrical-shaped structure axial open at one end second hold chamber 5110, and on the axial other end, it is provided with the through hole 512 connected with the second accommodation chamber 5110, second sidewall holding chamber 5110 is formed with the second breach 514, second bottom holding chamber 5110 convexes to form three around projection 515 uniform for rotation axis X along the direction being parallel to rotation axis X, projection 515 constitutes the guide portion of the present embodiment, projection 515 is formed and rotates against the axis X guide surface 5150 being in tilted layout along the rotation circumference around the revolving force receiving element 2 that develops as shown in Figure 1.
Referring to Fig. 5 and Fig. 6, switch unit is driven to be constituted by coupling control piece 61, development revolving force receiving element 2, spring 63 and transmission gear 64.
The body coupling control piece 61 is a ring body structurc 610, and the outer peripheral face of ring body structurc 610 radially convexes to form three directed sections 611 and a limited portion 612. Three directed sections 611 are evenly arranged along the circumference of ring body structurc 610. Directed section 611 is formed the directed face 6110 matched with guide surface 5150, namely directed face 6110 also rotate against axis X along development revolving force receiving element 2 rotation circumference be in tilted layout.
The body of development revolving force receiving element 2 is circular bosses structure 20, the upper axial end of circular bosses structure 20 is axial along it, namely the path end face of circular bosses structure 20 extends to form, along the direction being parallel to rotation axis X, the revolving force acceptance division 21 that cross section is triangle, lower axial end is along its axially extending formation guide rod 22 and ring body 23, ring body 23 and guide rod 22 coaxial arrangement and be positioned at outside guide rod 22, ring body 23 is evenly provided with 4 the first breach 231 along the rotation circumference of development revolving force receiving element 2, ring body 23 is divided into four output arms 232 by these 4 the first breach 231 equably, gap 201 between ring body 23 and guide rod 22 is for holding the upper end of spring 63.Guide rod 22 forms necked-down end portion 220 away from the end constriction of circular bosses structure 20.
The face shaping substantially cylindrical of transmission gear 64, transmission gear 64 is provided with the first accommodation chamber 640 of axially open at one end, and another axial end is formed and holds, with first, the pilot hole 644 that chamber 640 connects. The radial outer wall being positioned at transmission gear 64 is provided with helical teeth 642 circumferentially. First holds the bottom surface in chamber 640 along being parallel to rotation axis X, namely extends to form, towards the first accommodation uncovered direction, chamber 640, four projections matched with the first breach 231 along the axial of transmission gear 64, and these four projections constitute the input arm 641 of the present embodiment.
The necked-down end portion 220 of guide rod 22 sequentially passes through spring 63, hold chamber 640 arrives the pilot hole 644 of matched in clearance with it, so that revolving force receiving element 61 can axial along guide rod 22, namely relatively transmit gear 64 along the direction being parallel to rotation axis X and move back and forth; At the revolution along development rotation force transmission element 2 upwards, input arm 641 is inserted in the first breach 231 and is abutted with output arm 232 and contacts, namely output arm 232 is in the position of input arm 641 and input arm 641 abutting contact, thus realize development revolving force receiving element 2 relatively transmit gear 64 along the direction reciprocating movement be parallel to rotation axis X with transmission gear 64 keep couple connection, with the revolving force that revolving force acceptance division 21 receives is passed to transmit gear 64.
The upper end of spring 63 is resisted against on the bigger diameter end face of circular bosses structure 20, lower end is resisted against on the bottom surface in the first accommodation chamber 640, it constitutes the return unit of the present embodiment, and its elastic restoring force constitutes the reset force of the present embodiment, is used for forcing development revolving force receiving element 2 away from transmission gear 64. Ring body structurc 610 is enclosed within the minor diameter part of circular bosses structure 20 exceptionally and with it matched in clearance, the lower surface of torus structure 610 is resisted against on the shoulder face 201 of circular bosses structure 20, the lower surface of torus structure 610 constitutes the force section of the present embodiment, and shoulder face 201 constitutes the forced section of the present embodiment.
Referring to Fig. 7, by connection control piece 61 with rotationally support after seat 511 is assembled together, it is about to couple control piece 61 and loads in the second accommodation chamber 5110, limited portion 612 stretches out the second accommodation chamber 5110 from the second breach 514, and three directed sections 611 lay respectively in the gap between three guide portion 515, directed face 6110 aligns with guide surface 5150.
Referring to Fig. 8, the development end cap 51 that will be equipped with coupling control piece 61 is assembled together with drive end end cap 11, and load in the second accommodation chamber 5110 together with after development revolving force receiving element 2, spring 63 are assembled with transmission gear 64, at the development relative drive end end cap 11 of end cap 51 in the rotation axis X process rotated clockwise, limited portion 612 will be resisted against on limiting section 113.
Referring to Fig. 9, the revolving force received is driven developer roll 54 to rotate by developing roller gear 540 by transmission gear 64.
Referring to Fig. 1 to Figure 10, being loaded by Delevoping cartridge after on the main frame of electrophotographic image forming, development revolving force receiving element 2 and drum revolving force receiving element 3 couple with corresponding driving output link respectively. owing to there is spring 63, under the effect of its elastic restoring force, development revolving force receiving element 2 can move back and forth along the direction being parallel to rotation axis X, consequently facilitating development revolving force receiving element 2 drives coupling of output link with developing unit. now, main frame on main frame promotes component not to thrust acceptance division 53 applied thrust, developing cell 5 and drum unit 4 are under the effect of the elastic restoring force of torque spring 14, developing cell 5 is applied a torque centered by rotation axis X by relative box body, under the influence of this torque developer roll 54 work side face or spacer sleeve thereon be held against on the work side face of photosensitive drums 41, to form the spacing that development is required between developer roll 54 and photosensitive drums 41, the elastic restoring force of spring 63 forces the revolving force acceptance division 21 of development revolving force receiving element 2 to be positioned at the position driving output link to couple with developing unit, the end face of the directed section 611 coupling control piece 61 is resisted against on the bottom surface in the second accommodation chamber 5110, namely the relative box body of developing cell 5 is positioned at coupled position place.Development revolving force receiving element 2 drives from developing unit and receives revolving force output link, and with the connection that couples of input arm 641, revolving force is passed to transmission gear 64 by output arm 232, and revolving force is passed to developing roller gear 540 by gear transmission and drives developer roll 54 normally to rotate, develop supplying developing agent to photosensitive drums 41.
Referring to Fig. 1 to Fig. 9 and Figure 11, when stopping printing, main frame on main frame promotes component to thrust acceptance division 53 applied thrust, developing cell framework 50 is made to overcome the elastic restoring force of torque spring 14 to compress torque spring 14, namely developing cell 5 rotates around rotation axis X relative to box body, thus causing being formed more than gap needed for normal development between work side face and the work side face of photosensitive drums 41 of developer roll 54; Owing to limited portion 612 is resisted against on limiting section 113, thus forcing connection control piece 61 not rotate around rotation axis X with development end cap 51, under the effect in guide surface 5150 and directed face 6110, connection control piece 61 is promoted to move along the direction being parallel to rotation axis X to the direction near transmission gear 64, to overcome the elastic restoring force of spring 63 to force, development revolving force receiving element 2 is close along the direction being parallel to rotation axis X transmits gear 64, and drive output link disengaging to couple with developing unit, namely the relative box body of developing cell 5 is positioned at disengaging configuration place. Driving the disengaging of output link to couple owing to development revolving force receiving element 2 achieves with developing unit, thus cutting off the driving to developer roll 41 during non-development, stopping proceeding photosensitive drums 41 for powder.
Thus forced section being applied power and under the force action of the reset force of return unit, controls development revolving force receiving element 2 and move back and forth along the direction being parallel to rotation axis X in the force section coupling control piece 61.
In the present embodiment, rotation axis X is also transmission gear 64, development rotation force transmission element 2 rotation axis in the course of the work simultaneously.
Second embodiment
As the explanation to second embodiment of the invention, only the difference with first embodiment is illustrated below.
Referring to Figure 12, adopting the first magnetic piece 7631 and the second magnetic piece 7632 to substitute spring and constitute the return unit of the present embodiment, the first magnetic piece 7631 and the second magnetic piece 7632 are torus structure.
The necked-down end portion 7220 of guide rod 722 sequentially pass through after the endoporus of the first magnetic piece 7631 and the second magnetic piece 7632 with guide hole 7644 matched in clearance.
First magnetic piece 7631 is fixed on the bigger diameter end face of circular bosses structure 720 in the way of bonding, and the second magnetic piece 7632 is fixed on the bottom surface in the first accommodation chamber 7640 in the way of bonding, and the first magnetic piece 7631 and the second magnetic piece 7632 are that homopolarity is positioned opposite.
First magnetic piece 7631 constitutes the return unit of the present embodiment together with the second magnetic piece 7632, and repulsive force therebetween constitutes the reset force of the present embodiment, is used for forcing development revolving force receiving element 72 away from transmission gear 764.
3rd embodiment
As the explanation to third embodiment of the invention, only the difference with first embodiment is illustrated below.
Referring to Figure 13, the outer wall of guide rod 822 transversely convexes to form two round bars 8232 and is constituted the output arm of the present embodiment to substitute ring body in first embodiment, in transmission gear 864, the first bottom surface holding chamber 8640 convexes to form ring body 8641 along the direction being parallel to rotation axis X, being formed with two breach 8642 matched with round bar 8232 along the direction being parallel to rotation axis X on ring body 8641, being provided with that the ring body 8641 of breach 8642 substitutes in first embodiment is projection bottom the first accommodation chamber 8640 input arm that constitutes the present embodiment.
The upper surface of spring 863 is resisted against on round bar 8232, but not is resisted against on the bigger diameter end face of circular bosses structure 820.
4th embodiment
As the explanation to fourth embodiment of the invention, only the difference with first embodiment is illustrated below.
Referring to Figure 14, omitting the guide surface in the guide portion 9515 being located at development end cap 951, namely guide portion 9515 is spherical 95150 with the part of the directed face 9611 phase effect being located on the directed section 9611 coupling control piece 961.
5th embodiment
As the explanation to fifth embodiment of the invention, illustrate only for the difference with the 4th embodiment below.
Referring to Figure 14, contrary with the 4th embodiment, adopt arcwall face to substitute the directed face 96110 being located on directed section 9611, and be located at the guide surface in the first embodiment not yet of the guide surface in guide portion 9515.
The central scope of the present invention is that the passage driving switching mechanism to Delevoping cartridge improves, realize it and drive output link to couple with the developing unit on main frame to be moved back and forth along rotation axis X by control development revolving force receiving element during development operation, drive output link to depart from developing unit during non-development to couple, thus realizing the switching that developer roll drives, according to this design, the setting of guide portion and limiting section also has multiple apparent change, such as guide portion is located on drive end end cap and stretches into the second accommodation intracavity by the through hole being located on development end cap and coordinate with directed section, and limiting section is located on development end cap, can rotate around rotation axis X with development end cap so that coupling control piece, the setting of output arm and input arm also has multiple apparent change, and such as input arm can be parallel to the sidewall of rotation axis X and constitute along radially extending of gear of transmission by the first accommodation chamber, the position coupling control piece, development revolving force receiving element and return unit arranges also multiple apparent change, the reset force of such as return unit forces development revolving force receiving element near transmission gear, by guide portion being arranged to towards the direction extension away from transmission gear, couple control piece relative to developing end cap in the rotation axis X process rotated, promote development revolving force receiving element away from transmission gear.
Claims (10)
1. Delevoping cartridge, including box body, developing cell and driving switch unit;
Described developing cell includes developing cell framework and can be rotated to support on the developer roll on described developing cell framework;
Described driving switch unit includes transmission gear, return unit, connection control piece and development revolving force receiving element;
Described developing cell can be bearing on described box body around rotation axis reciprocating rotation, and described rotation axis is the rotation axis of described transmission gear and described development revolving force receiving element;
It is characterized in that:
Described connection control piece includes limited portion, directed section and force section;
Described box body is with described developing cell framework, and one is provided with limiting section, and another one is provided with guide portion;
The relatively described developing cell framework of described connection control piece can move back and forth along the direction being parallel to described rotation axis;
Described development revolving force receiving element reciprocatingly can couple with described transmission gear coupling along the direction being parallel to described rotation axis;
With the relatively described box body of described developing cell around described rotation axis reciprocating rotation between coupled position and disengaging configuration, by coordinating of described limited portion and described limiting section and coordinating of described directed section and described guide portion, described force section and described return unit making a concerted effort to described development revolving force receiving element, described development revolving force receiving element is driven to move back and forth along the direction being parallel to described rotation axis.
2. Delevoping cartridge according to claim 1, it is characterised in that:
Described development revolving force receiving element includes guide rod, output arm, is positioned at the revolving force acceptance division of axial one end of described guide rod, and for receiving the forced section of the power that described force section applies;
Described transmission gear is provided with the first accommodation chamber of axially open at one end, described first holds intracavity is provided with input arm, the axial other end of described transmission gear is provided with and holds the pilot hole that connect of chamber with described first, another axial end of described guide rod through described first accommodation chamber and with described pilot hole matched in clearance;
Described output arm in the position at described input arm place with described input arm abutting contact.
3. Delevoping cartridge according to claim 2, it is characterised in that:
Described revolving force receiving element radially extending or extending to form described output arm along being parallel to the described rotation axis direction towards the described first bottom surface holding chamber along described transmission gear;
Described first holds chamber is parallel to the inwall of described rotation axis radially extending or described first holding the bottom surface in chamber and extend to form described input arm towards described uncovered direction along being parallel to described rotation axis along described transmission gear.
4. Delevoping cartridge according to claim 1, it is characterised in that:
Described guide portion include relative to described rotation axis along described first transmit gear rotates the guide surface that is in tilted layout of circumference and/or described directed section includes rotating circumferential directed be in tilted layout relative to described rotation axis along described.
5. Delevoping cartridge according to claim 4, it is characterised in that:
The body of described development revolving force receiving element is circular bosses structure, and the path end face of described circular bosses structure extends to form revolving force acceptance division along the direction being parallel to described rotation axis;
The body of described connection control piece is ring body structurc, and the outer peripheral face of described ring body structurc forms described directed section and described limited portion along the radial protrusion of described ring body structurc;
Described ring body structurc is placed on the minor diameter part of described circular bosses structure exceptionally and with it matched in clearance;
The shoulder face of described circular bosses structure constitutes described forced section, and the end face that described ring body structurc and described shoulder face lean constitutes described force section.
6. Delevoping cartridge according to claim 5, it is characterised in that:
The bigger diameter end face of described circular bosses structure extend to form along the direction being parallel to described rotation axis guide rod and with described guide rod coaxial arrangement be located at the ring body outside described guide rod, described ring body is provided with more than one edge and is parallel to the first breach that the direction of described rotation axis is arranged;
Described transmission gear is provided with the first accommodation chamber of axially open at one end, the axial other end of described transmission gear is provided with and holds the pilot hole that connect of chamber with described first, described guide rod away from described revolving force acceptance division one end through described first accommodation chamber and with described pilot hole matched in clearance;
The bottom surface of described transmission gear extends to form, along the direction being parallel to described rotation axis, the projection matched with described first breach;
Described return unit is spring, and described spring is placed on outside described guide rod and matched in clearance with it, and one end of described spring is resisted against on described bigger diameter end face, and the other end is resisted against on the described first bottom surface holding chamber.
7. Delevoping cartridge according to claim 5, it is characterised in that:
Described developing cell framework includes development end cap, described development end cap convexes to form along the direction being parallel to described rotation axis and columned rotationally supports seat, the described seat that rotationally supports is provided with the second accommodation chamber of axially open at one end, described second holds chamber is used for holding described driving switch unit, the described axial other end rotationally supporting seat is provided with the through hole for exposing described revolving force acceptance division, and the described second sidewall holding chamber is provided with the second breach;
Described box body includes drive end end cap, and the head face hump of the contiguous described development end cap of described drive end end cap forms described limiting section, the free end in described limited portion through described second breach and with described limiting section abutting contact.
8. Delevoping cartridge according to claim 1, it is characterised in that:
The reset force of described return unit forces described development revolving force receiving element away from described transmission gear.
9. Delevoping cartridge according to claim 8, it is characterised in that:
Described return unit includes homopolarity the first magnet positioned opposite and the second magnet, and described first magnet is fixed on described development revolving force receiving element, and described second magnet is fixed on described transmission gear.
10. Delevoping cartridge according to any one of claim 1 to 9, it is characterised in that:
Also including drum unit, described drum unit includes drum unit framework, drum revolving force receiving element and can be rotated to support on the photosensitive drums on described drum unit framework;
Described drum unit framework is fixing with described box body to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200592.0A CN105676607B (en) | 2016-03-31 | 2016-03-31 | Developing cartridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610200592.0A CN105676607B (en) | 2016-03-31 | 2016-03-31 | Developing cartridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105676607A true CN105676607A (en) | 2016-06-15 |
| CN105676607B CN105676607B (en) | 2023-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610200592.0A Active CN105676607B (en) | 2016-03-31 | 2016-03-31 | Developing cartridge |
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| Country | Link |
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| CN (1) | CN105676607B (en) |
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| CN107544225A (en) * | 2017-10-11 | 2018-01-05 | 中山诚威科技有限公司 | A kind of Delevoping cartridge |
| CN107561890A (en) * | 2017-10-11 | 2018-01-09 | 中山诚威科技有限公司 | A kind of Delevoping cartridge |
| CN107632502A (en) * | 2017-10-11 | 2018-01-26 | 中山诚威科技有限公司 | A kind of Delevoping cartridge |
| CN108762030A (en) * | 2018-05-02 | 2018-11-06 | 中山诚威科技有限公司 | The application method of Delevoping cartridge and Delevoping cartridge |
| CN110850698A (en) * | 2019-11-28 | 2020-02-28 | 珠海天威飞马打印耗材有限公司 | Processing box |
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| CN105676607B (en) | 2023-08-11 |
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